.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px}.loading-container.fullscreen{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#ffffffe6;z-index:9999}.loading-spinner{display:inline-block;position:relative}.loading-spinner-small{width:24px;height:24px}.loading-spinner-medium{width:40px;height:40px}.loading-spinner-large{width:60px;height:60px}.spinner-circle{position:absolute;border:3px solid transparent;border-radius:50%;animation:spin 1.2s cubic-bezier(.5,0,.5,1) infinite}.loading-spinner-small .spinner-circle{border-width:2px}.loading-spinner-large .spinner-circle{border-width:4px}.loading-spinner-primary .spinner-circle:nth-child(1){border-color:#3b82f6 transparent transparent transparent;animation-delay:-.45s}.loading-spinner-primary .spinner-circle:nth-child(2){border-color:#3b82f6 transparent transparent transparent;animation-delay:-.3s}.loading-spinner-primary .spinner-circle:nth-child(3){border-color:#3b82f6 transparent transparent transparent;animation-delay:-.15s}.loading-spinner-primary .spinner-circle:nth-child(4){border-color:#3b82f6 transparent transparent transparent}.loading-spinner-secondary .spinner-circle{border-color:#6b7280 transparent transparent transparent}.loading-spinner-success .spinner-circle{border-color:#10b981 transparent transparent transparent}.loading-spinner-error .spinner-circle{border-color:#ef4444 transparent transparent transparent}.loading-spinner-small .spinner-circle{top:2px;left:2px;right:2px;bottom:2px}.loading-spinner-medium .spinner-circle{top:3px;left:3px;right:3px;bottom:3px}.loading-spinner-large .spinner-circle{top:4px;left:4px;right:4px;bottom:4px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.loading-message{margin-top:16px;color:#6b7280;font-size:14px;text-align:center;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.button-with-spinner{position:relative;padding-right:40px}.button-with-spinner .loading-spinner{position:absolute;right:10px;top:50%;transform:translateY(-50%)}.skeleton-loader{background:linear-gradient(90deg,#f3f4f6 25%,#e5e7eb,#f3f4f6 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:4px}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (prefers-color-scheme: dark){.loading-container.fullscreen{background-color:#000000e6}.loading-message{color:#d1d5db}.skeleton-loader{background:linear-gradient(90deg,#374151 25%,#4b5563,#374151 75%)}}.error-message{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:8px;margin-bottom:16px;animation:slideIn .3s ease-out;border:1px solid}@keyframes slideIn{0%{transform:translateY(-10px);opacity:0}to{transform:translateY(0);opacity:1}}.error-message-error{background-color:#fee2e2;border-color:#fecaca;color:#991b1b}.error-message-warning{background-color:#fef3c7;border-color:#fde68a;color:#92400e}.error-message-info{background-color:#dbeafe;border-color:#bfdbfe;color:#1e40af}.error-message-success{background-color:#d1fae5;border-color:#a7f3d0;color:#065f46}.error-message-content{display:flex;align-items:center;gap:12px;flex:1}.error-message-icon{font-size:20px;flex-shrink:0}.error-message-text{font-size:14px;line-height:1.5;word-break:break-word}.error-message-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}.error-message-retry,.error-message-dismiss{background:none;border:none;cursor:pointer;transition:all .2s ease;border-radius:4px;padding:4px 8px}.error-message-retry{color:inherit;font-size:14px;font-weight:500}.error-message-retry:hover{background-color:#0000000d}.error-message-dismiss{color:inherit;font-size:20px;line-height:1;width:28px;height:28px;display:flex;align-items:center;justify-content:center}.error-message-dismiss:hover{background-color:#0000000d}@media (max-width: 640px){.error-message{flex-direction:column;align-items:flex-start;gap:12px}.error-message-content{width:100%}.error-message-actions{width:100%;justify-content:flex-end}}@media (prefers-color-scheme: dark){.error-message-error{background-color:#7f1d1d;border-color:#991b1b;color:#fecaca}.error-message-warning{background-color:#78350f;border-color:#92400e;color:#fde68a}.error-message-info{background-color:#1e3a8a;border-color:#1e40af;color:#bfdbfe}.error-message-success{background-color:#064e3b;border-color:#065f46;color:#a7f3d0}.error-message-retry:hover,.error-message-dismiss:hover{background-color:#ffffff1a}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.login-container{width:100%;max-width:400px;background:#fff;border-radius:12px;box-shadow:0 10px 40px #0000001a;overflow:hidden}.login-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:40px 30px;text-align:center}.login-title{font-size:28px;font-weight:700;margin:0 0 10px}.login-subtitle{font-size:16px;opacity:.9;margin:0}.login-form{padding:40px 30px}.login-form h2{font-size:24px;margin:0 0 30px;color:#333;text-align:center}.form-actions{display:flex;justify-content:flex-end;margin-bottom:20px}.forgot-password-link{color:#667eea;text-decoration:none;font-size:14px;transition:color .3s ease}.forgot-password-link:hover{color:#764ba2;text-decoration:underline}.login-button{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease}.login-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.login-button:disabled{opacity:.7;cursor:not-allowed}.register-link{text-align:center;margin-top:30px;padding-top:30px;border-top:1px solid #e5e7eb;color:#6b7280}.register-link a{color:#667eea;text-decoration:none;font-weight:600;margin-left:5px;transition:color .3s ease}.register-link a:hover{color:#764ba2;text-decoration:underline}.delete-account-link{text-align:center;margin-top:15px;font-size:13px}.delete-account-link .text-link{color:#666;text-decoration:none}.delete-account-link .text-link:hover{color:#d32f2f;text-decoration:underline}@media (max-width: 480px){.login-page{padding:0}.login-container{max-width:100%;border-radius:0;box-shadow:none;min-height:100vh}.login-header{padding:30px 20px}.login-title{font-size:24px}.login-subtitle{font-size:14px}.login-form{padding:30px 20px}.login-form h2{font-size:20px}.form-group input{font-size:16px}}@media (max-width: 768px){.login-page{padding:10px}}@media (hover: none) and (pointer: coarse){.login-button{min-height:48px}.form-group input{min-height:44px}}.register-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.register-container{width:100%;max-width:400px;background:#fff;border-radius:12px;box-shadow:0 10px 40px #0000001a;overflow:hidden}.register-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:40px 30px;text-align:center}.register-title{font-size:28px;font-weight:700;margin:0 0 10px}.register-subtitle{font-size:16px;opacity:.9;margin:0}.register-form{padding:40px 30px}.register-form h2{font-size:24px;margin:0 0 30px;color:#333;text-align:center}.form-group label{display:block;margin-bottom:8px;color:#555;font-weight:500}.form-group input{width:100%;padding:12px 16px;border:1px solid #ddd;border-radius:6px;font-size:16px;transition:all .3s ease}.form-group input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-group input.error{border-color:#ef4444}.form-group input:disabled{background-color:#f3f4f6;cursor:not-allowed}.error-message{display:block;color:#ef4444;font-size:14px;margin-top:6px}.general-error{background-color:#fee2e2;border:1px solid #fecaca;border-radius:6px;padding:12px;margin-bottom:20px;text-align:center}.register-button{width:100%;padding:14px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s ease;margin-top:10px}.register-button:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.register-button:disabled{opacity:.7;cursor:not-allowed}.login-link{text-align:center;margin-top:30px;padding-top:30px;border-top:1px solid #e5e7eb;color:#6b7280}.login-link a{color:#667eea;text-decoration:none;font-weight:600;margin-left:5px;transition:color .3s ease}.login-link a:hover{color:#764ba2;text-decoration:underline}@media (max-width: 480px){.register-container{max-width:100%;border-radius:0}.register-header,.register-form{padding:30px 20px}}.checkbox-group{margin-bottom:15px}.checkbox-label{display:flex;align-items:flex-start;gap:8px;cursor:pointer;font-size:14px;color:#333}.checkbox-label input[type=checkbox]{margin-top:3px;cursor:pointer}.checkbox-label span{flex:1;line-height:1.5}.link-button{background:none;border:none;color:#06c;text-decoration:underline;cursor:pointer;padding:0;font-size:inherit}.link-button:hover{color:#0052a3}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000026;max-width:800px;max-height:80vh;width:90%;display:flex;flex-direction:column}.terms-modal{width:90%;max-width:900px}.modal-header{padding:20px;border-bottom:1px solid #e0e0e0;display:flex;justify-content:space-between;align-items:center}.modal-header h2{margin:0;font-size:20px;color:#333}.modal-close{background:none;border:none;font-size:24px;cursor:pointer;color:#666;padding:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:background-color .2s}.modal-close:hover{background-color:#f0f0f0}.modal-body{flex:1;overflow-y:auto;padding:20px}.terms-content{white-space:pre-wrap;font-family:monospace;font-size:13px;line-height:1.6;color:#333;margin:0}.modal-footer{padding:15px 20px;border-top:1px solid #e0e0e0;display:flex;justify-content:flex-end}.modal-button{padding:8px 24px;background-color:#06c;color:#fff;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:background-color .2s}.modal-button:hover{background-color:#0052a3}.forgot-password-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.forgot-password-card{background:#fff;border-radius:12px;box-shadow:0 10px 30px #0003;padding:40px;width:100%;max-width:400px;animation:slideUp .3s ease-out}.forgot-password-header{text-align:center;margin-bottom:30px}.forgot-password-header h1{font-size:28px;margin:0 0 8px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.forgot-password-header h2{font-size:20px;margin:0;color:#374151;font-weight:500}.forgot-password-description{text-align:center;color:#6b7280;font-size:14px;margin-bottom:30px;line-height:1.5}.forgot-password-form{display:flex;flex-direction:column;gap:20px}.success-message{text-align:center;padding:20px 0;animation:fadeIn .5s ease-out}.success-message h3{font-size:20px;color:#111827;margin:0 0 12px}.success-message p{color:#6b7280;font-size:14px;margin:0 0 8px;line-height:1.5}.info-text{font-size:13px;color:#9ca3af;margin-top:16px}.forgot-password-footer{text-align:center;margin-top:30px;padding-top:20px;border-top:1px solid #e5e7eb}@media (max-width: 480px){.forgot-password-card{padding:30px 20px}.forgot-password-header h1{font-size:24px}.forgot-password-header h2{font-size:18px}.success-icon{font-size:48px}}.reset-password-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.reset-password-card{background:#fff;border-radius:12px;box-shadow:0 10px 30px #0003;padding:40px;width:100%;max-width:400px;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.reset-password-header{text-align:center;margin-bottom:30px}.reset-password-header h1{font-size:28px;margin:0 0 8px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.reset-password-header h2{font-size:20px;margin:0;color:#374151;font-weight:500}.reset-password-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:14px;font-weight:500;color:#374151}.form-group input{padding:12px 16px;border:1px solid #e5e7eb;border-radius:8px;font-size:16px;transition:all .3s ease;background-color:#f9fafb}.form-group input:focus{outline:none;border-color:#667eea;background-color:#fff;box-shadow:0 0 0 3px #667eea1a}.form-group input:disabled{opacity:.7;cursor:not-allowed}.password-input-wrapper{position:relative}.password-input-wrapper input{padding-right:48px}.toggle-password{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;font-size:20px;cursor:pointer;padding:4px;opacity:.6;transition:opacity .3s ease}.toggle-password:hover{opacity:1}.error-message{background-color:#fee;color:#dc2626;padding:12px;border-radius:8px;font-size:14px;text-align:center;animation:shake .3s ease-in-out}.submit-button{padding:12px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:all .3s ease;position:relative;overflow:hidden}.submit-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.submit-button:active:not(:disabled){transform:translateY(0)}.submit-button:disabled{opacity:.7;cursor:not-allowed}.reset-password-footer{text-align:center;margin-top:30px;padding-top:20px;border-top:1px solid #e5e7eb}.back-link{color:#667eea;text-decoration:none;font-size:14px;font-weight:500;transition:all .3s ease}.back-link:hover{color:#764ba2;text-decoration:underline}.loading-spinner{text-align:center;padding:40px 0}.spinner{width:40px;height:40px;border:4px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;margin:0 auto 16px;animation:spin 1s linear infinite}.loading-spinner p{color:#6b7280;font-size:14px}.error-state{text-align:center;padding:20px 0}.error-icon{font-size:64px;margin-bottom:20px}.error-state h2{font-size:24px;color:#111827;margin:0 0 12px}.error-state p{color:#6b7280;font-size:16px;margin:0 0 24px}.action-link{display:inline-block;padding:12px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;text-decoration:none;border-radius:8px;font-weight:500;transition:all .3s ease}.action-link:hover{transform:translateY(-2px);box-shadow:0 5px 15px #667eea66}.success-state{text-align:center;padding:20px 0;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.success-icon{font-size:64px;margin-bottom:20px}.success-state h2{font-size:24px;color:#111827;margin:0 0 12px}.success-state p{color:#6b7280;font-size:16px;margin:0 0 8px}.redirect-text{font-size:14px;color:#9ca3af;font-style:italic;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.5}50%{opacity:1}}@media (max-width: 480px){.reset-password-card{padding:30px 20px}.reset-password-header h1{font-size:24px}.reset-password-header h2{font-size:18px}.error-icon,.success-icon{font-size:48px}}.account-deletion-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:#f8f9fa;padding:20px}.account-deletion-container{background:#fff;border-radius:12px;box-shadow:0 2px 8px #0000001a;max-width:500px;width:100%;overflow:hidden}.account-deletion-header{text-align:center;padding:30px 20px 20px;border-bottom:1px solid #e0e0e0}.account-deletion-title{margin:0 0 10px;font-size:28px;color:#333}.account-deletion-warning{color:#d32f2f;font-size:16px;font-weight:500;margin:0}.account-deletion-form{padding:30px 40px 40px}.warning-box{background-color:#fff3e0;border:1px solid #ffb74d;border-radius:8px;padding:16px;margin-bottom:24px}.warning-box h3{margin:0 0 12px;font-size:16px;color:#e65100}.warning-box ul{margin:0;padding-left:20px;color:#666;font-size:14px;line-height:1.6}.button-group{display:flex;gap:12px;margin-top:24px}.cancel-button{flex:1;padding:12px 24px;background-color:#f5f5f5;color:#333;border:1px solid #ddd;border-radius:6px;font-size:16px;cursor:pointer;transition:all .2s ease}.cancel-button:hover:not(:disabled){background-color:#e0e0e0}.delete-button{flex:1;padding:12px 24px;background-color:#d32f2f;color:#fff;border:none;border-radius:6px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease}.delete-button:hover:not(:disabled){background-color:#c62828}.delete-button:disabled,.cancel-button:disabled{opacity:.6;cursor:not-allowed}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;color:#333;font-size:14px}.form-group input{width:90%;padding:12px 16px;border:1px solid #ddd;border-radius:6px;font-size:16px;transition:border-color .2s ease}.form-group input:focus{outline:none;border-color:#06c}.form-group input.error{border-color:#d32f2f}.error-message{color:#d32f2f;font-size:13px;margin-top:6px;display:block}.general-error{background-color:#ffebee;border:1px solid #ef5350;padding:12px 16px;border-radius:6px;margin-bottom:20px}.confirm-modal{max-width:450px}.confirm-message{font-size:16px;color:#333;margin:0 0 16px}.warning-message{color:#d32f2f;font-size:14px;line-height:1.6;margin:0;padding:12px;background-color:#ffebee;border-radius:6px}.modal-footer{gap:12px}.modal-button.cancel{background-color:#f5f5f5;color:#333;border:1px solid #ddd}.modal-button.cancel:hover{background-color:#e0e0e0}.modal-button.danger{background-color:#d32f2f}.modal-button.danger:hover{background-color:#c62828}@media (max-width: 768px){.account-deletion-form{padding:24px 20px}.button-group{flex-direction:column}.cancel-button,.delete-button{width:100%}}.levelup-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .3s ease-out}.levelup-modal-content{background:#fff;border-radius:20px;padding:3rem;max-width:500px;width:90%;text-align:center;position:relative;overflow:hidden;box-shadow:0 20px 60px #0000004d;animation:scaleIn .5s ease-out}@keyframes scaleIn{0%{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}.levelup-animation{position:absolute;top:0;left:0;right:0;bottom:0;pointer-events:none}.star{position:absolute;font-size:2rem;animation:twinkle 2s infinite}.star-1{top:10%;left:10%;animation-delay:0s}.star-2{top:15%;right:15%;animation-delay:.5s}.star-3{bottom:20%;left:20%;animation-delay:1s}.star-4{bottom:15%;right:10%;animation-delay:1.5s}@keyframes twinkle{0%,to{opacity:0;transform:scale(.5) rotate(0)}50%{opacity:1;transform:scale(1) rotate(180deg)}}.levelup-title{font-size:3rem;font-weight:800;margin:0 0 2rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:pulse 1s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.level-display{display:flex;align-items:center;justify-content:center;gap:2rem;margin:2rem 0}.old-level{font-size:2rem;color:#9ca3af;text-decoration:line-through}.arrow{font-size:2rem;color:#667eea}.new-level{font-size:3rem;font-weight:700;color:#667eea;animation:bounceIn .8s ease-out}@keyframes bounceIn{0%{transform:scale(0)}50%{transform:scale(1.2)}to{transform:scale(1)}}.levelup-message{font-size:1.3rem;color:#374151;margin:2rem 0;line-height:1.6}.next-level-info{font-size:1.1rem;color:#6b7280;margin-bottom:2rem}.levelup-close-button{padding:12px 36px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:30px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.levelup-close-button:hover{transform:translateY(-2px);box-shadow:0 10px 20px #667eea4d}@media (max-width: 600px){.levelup-modal-content{padding:2rem}.levelup-title{font-size:2.5rem}.level-display{gap:1rem}.old-level{font-size:1.5rem}.new-level{font-size:2.5rem}.levelup-message{font-size:1.1rem}}.tutorial-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:9999;pointer-events:none}.tutorial-backdrop{position:absolute;top:0;left:0;right:0;bottom:0;background-color:#00000080;pointer-events:auto}.tutorial-highlight{position:absolute;background-color:transparent;box-shadow:0 0 0 9999px #0000004d;border-radius:8px;pointer-events:none;transition:all .3s ease}.tutorial-tooltip{position:absolute;background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000026;padding:24px;width:380px;max-width:calc(100vw - 40px);pointer-events:auto;animation:fadeIn .3s ease}.tutorial-tooltip:before{content:"";position:absolute;width:0;height:0;border-style:solid}.tutorial-tooltip.arrow-top:before{top:-10px;left:50%;transform:translate(-50%);border-width:0 10px 10px 10px;border-color:transparent transparent white transparent}.tutorial-tooltip.arrow-bottom:before{bottom:-10px;left:50%;transform:translate(-50%);border-width:10px 10px 0 10px;border-color:white transparent transparent transparent}.tutorial-tooltip.arrow-left:before{left:-10px;top:50%;transform:translateY(-50%);border-width:10px 10px 10px 0;border-color:transparent white transparent transparent}.tutorial-tooltip.arrow-right:before{right:-10px;top:50%;transform:translateY(-50%);border-width:10px 0 10px 10px;border-color:transparent transparent transparent white}.tutorial-skip{position:absolute;top:12px;right:12px;background:none;border:none;color:#666;font-size:14px;cursor:pointer;padding:8px 12px;border-radius:6px;transition:all .2s ease}.tutorial-skip:hover{background:#f0f0f0;color:#333}.tutorial-title{margin:0 0 16px;font-size:20px;font-weight:600;color:#333;padding-right:60px}.tutorial-content{margin-bottom:24px;font-size:15px;line-height:1.6;color:#555}.tutorial-navigation{display:flex;justify-content:space-between;align-items:center;margin-top:24px}.tutorial-nav-button{padding:8px 20px;border:1px solid #ddd;background:#fff;border-radius:6px;font-size:14px;cursor:pointer;transition:all .2s ease}.tutorial-nav-button:hover:not(:disabled){background:#f8f8f8;border-color:#ccc}.tutorial-nav-button:disabled{opacity:.5;cursor:not-allowed}.tutorial-nav-button.primary{background:#06c;color:#fff;border-color:#06c}.tutorial-nav-button.primary:hover{background:#0052a3;border-color:#0052a3}.tutorial-progress{font-size:14px;color:#666}@media (max-width: 768px){.tutorial-tooltip{width:calc(100vw - 32px);margin:0 16px}.tutorial-title{font-size:18px}.tutorial-content{font-size:14px}}.dashboard{min-height:100vh;background-color:#f3f4f6}.dashboard-header{background:#fff;box-shadow:0 1px 3px #0000001a;position:sticky;top:0;z-index:100}.header-content{max-width:1200px;margin:0 auto;padding:16px 20px;display:flex;justify-content:space-between;align-items:center}.header-content h1{margin:0;font-size:24px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.user-info{display:flex;align-items:center;gap:16px}.user-email{color:#6b7280;font-size:14px}.logout-button{padding:8px 16px;background:#fff;border:1px solid #e5e7eb;border-radius:6px;color:#374151;cursor:pointer;transition:all .3s ease}.logout-button:hover{background-color:#f9fafb;border-color:#d1d5db}.dashboard-main{max-width:1200px;margin:0 auto;padding:40px 20px}.welcome-section{text-align:center;margin-bottom:40px}.welcome-section h2{font-size:32px;margin:0 0 12px;color:#111827}.welcome-section p{font-size:18px;color:#6b7280}.quick-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-bottom:40px}.action-card{background:#fff;border-radius:12px;padding:32px;text-align:center;cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #0000001a}.action-icon{font-size:48px;margin-bottom:16px}.action-card p{margin:0;color:#6b7280}.stats-section{background:#fff;border-radius:12px;padding:32px;box-shadow:0 1px 3px #0000001a}.stats-section h3{font-size:20px;margin:0 0 24px;color:#111827}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}.stat-item{text-align:center;padding:20px;border-radius:8px;background-color:#f9fafb}.stat-value{font-size:36px;font-weight:700;color:#667eea;margin-bottom:8px}.stat-label{font-size:14px;color:#6b7280}.exercise-completion-card{background:#fff;border-radius:12px;padding:24px;margin-top:24px;text-align:center;box-shadow:0 1px 3px #0000001a;border:2px solid #fbbf24}.exercise-completion-card h3{color:#92400e;font-size:1.2rem;margin-bottom:.5rem;font-weight:600}.exercise-value{font-size:2.5rem;font-weight:700;color:#f59e0b;margin-bottom:.25rem}.exercise-label{color:#92400e;font-size:1rem;font-weight:500}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;background-color:#f3f4f6}.loading-spinner{width:40px;height:40px;border:4px solid #e5e7eb;border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-container p{margin-top:16px;color:#6b7280}.dashboard-container{margin-top:20px}.dashboard-tabs{display:flex;gap:8px;margin-bottom:24px;background:#fff;padding:8px;border-radius:12px;box-shadow:0 1px 3px #0000001a}.tab-button{flex:1;padding:12px 24px;background:transparent;border:none;border-radius:8px;font-size:16px;font-weight:500;color:#6b7280;cursor:pointer;transition:all .3s ease}.tab-button:hover{background-color:#f3f4f6;color:#374151}.tab-button.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.dashboard-overview{animation:fadeIn .3s ease-in}.stat-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 1px 3px #0000001a;text-align:center}.stat-card h3{font-size:14px;font-weight:500;color:#6b7280;margin:0 0 8px;text-transform:uppercase;letter-spacing:.5px}.gamification-status{background:#fff;border-radius:12px;padding:32px;margin-top:24px;box-shadow:0 1px 3px #0000001a}.gamification-status h2{font-size:20px;margin:0 0 24px;color:#111827}.gamification-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}.gamification-item{display:flex;flex-direction:column;align-items:center;padding:16px;background-color:#f9fafb;border-radius:8px}.gamification-item .label{font-size:14px;color:#6b7280;margin-bottom:8px}.gamification-item .value{font-size:24px;font-weight:700;color:#667eea}.action-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;margin-top:24px}.action-card{background:#fff;border:none;border-radius:12px;padding:32px;text-align:center;cursor:pointer;transition:all .3s ease;box-shadow:0 1px 3px #0000001a}.action-card:hover{transform:translateY(-4px);box-shadow:0 10px 20px #0000001a}.action-card h3{font-size:20px;margin:0 0 8px;color:#111827}.action-card p{margin:0;color:#6b7280;font-size:14px}.recent-activity{background:#fff;border-radius:12px;padding:32px;margin-top:24px;box-shadow:0 1px 3px #0000001a}.recent-activity h2{font-size:20px;margin:0 0 24px;color:#111827}.activity-list{display:flex;flex-direction:column;gap:12px}.activity-item{display:flex;justify-content:space-between;align-items:center;padding:16px;background-color:#f9fafb;border-radius:8px}.activity-info{display:flex;align-items:center;gap:16px}.problem-id{font-weight:500;color:#374151}.problem-title{font-weight:500;color:#374151;flex:1}.score{font-size:18px;font-weight:700;color:#667eea}.best-score{background:linear-gradient(135deg,#f59e0b,#ef4444);color:#fff;padding:4px 8px;border-radius:4px;font-size:12px;font-weight:500}.activity-meta{display:flex;align-items:center;gap:16px;color:#6b7280;font-size:14px}.activity-meta .status{color:#2196f3;font-weight:500}.no-activity{text-align:center;padding:40px;color:#6b7280}.no-activity p{margin-bottom:16px;font-size:16px}.start-learning-button{background-color:#2196f3;color:#fff;border:none;padding:12px 24px;border-radius:8px;font-size:16px;font-weight:500;cursor:pointer;transition:background-color .2s}.start-learning-button:hover{background-color:#1976d2}.progress-summary{background:#fff;border-radius:12px;padding:32px;margin-top:24px;box-shadow:0 1px 3px #0000001a}.progress-summary h2{font-size:20px;margin:0 0 24px;color:#111827}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:16px}.summary-item{text-align:center;padding:16px;background-color:#f9fafb;border-radius:8px}.dashboard-progress{animation:fadeIn .3s ease-in}.chart-section{background:#fff;border-radius:12px;padding:32px;margin-bottom:24px;box-shadow:0 1px 3px #0000001a}.chart-section h2{font-size:20px;margin:0 0 24px;color:#111827}.chart-section canvas{max-height:400px}.dashboard-achievements{animation:fadeIn .3s ease-in}.badges-section{background:#fff;border-radius:12px;padding:32px;margin-bottom:24px;box-shadow:0 1px 3px #0000001a}.badges-section h2{font-size:20px;margin:0 0 24px;color:#111827}.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.badge-card{background-color:#f9fafb;border-radius:8px;padding:24px;text-align:center;transition:transform .3s ease}.badge-card:hover{transform:translateY(-4px)}.badge-icon{font-size:48px;margin-bottom:12px}.badge-name{font-size:16px;font-weight:600;color:#111827;margin-bottom:8px}.badge-description{font-size:14px;color:#6b7280;margin-bottom:12px}.badge-date{font-size:12px;color:#9ca3af}.milestones-section{background:#fff;border-radius:12px;padding:32px;box-shadow:0 1px 3px #0000001a}.milestones-section h2{font-size:20px;margin:0 0 24px;color:#111827}.milestones-list{display:flex;flex-direction:column;gap:12px}.milestone-item{display:flex;align-items:center;gap:16px;padding:16px;background-color:#f9fafb;border-radius:8px;transition:all .3s ease}.milestone-item.achieved{background-color:#f0fdf4;border:1px solid #86efac}.milestone-icon{font-size:24px}.milestone-info{flex:1;display:flex;justify-content:space-between;align-items:center}.milestone-value{font-weight:500;color:#374151}.milestone-date{font-size:14px;color:#6b7280}.dashboard-loading{display:flex;justify-content:center;align-items:center;min-height:400px;font-size:18px;color:#6b7280}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.header-content{flex-direction:column;gap:16px}.user-info{width:100%;justify-content:space-between}.quick-actions{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-tabs{flex-direction:column}.tab-button{width:100%}.gamification-grid,.summary-grid{grid-template-columns:1fr}.activity-item{flex-direction:column;align-items:flex-start;gap:8px}.activity-meta{width:100%;justify-content:space-between}.badges-grid{grid-template-columns:1fr}}@font-face{font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,d09GMgABAAAAAA4oAA4AAAAAHbQAAA3TAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAABmAAgRQIDgmcDBEICo1oijYBNgIkA14LMgAEIAWJAAeBHAyBHBvbGiMRdnO0IkRRkiYDgr9KsJ1NUAf2kILNxgUmgqIgq1P89vcbIcmsQbRps3vCcXdYOKSWEPEKgZgQkprQQsxIXUgq0DqpGKmIvrgkeVGtEQD9DzAO29fM9jYhxZEsL2FeURH2JN4MIcTdO049NCVdxQ/w9NrSYFEBKTDKpLKfNkCGDc1RwjZLQcm3vqJ2UW9Xfa3tgAHz6ivp6vgC2yD4/6352ndnN0X0TL7seypkjZlMsjmZnf0Mm5Q+JykRWQBKCVCVPbARPXWyQtb5VgLB6Biq7/Uixcj2WGqdI8tGSgkuRG+t910GKP2D7AQH0DB9FMDW/obJZ8giFI3Wg8Cvevz0M+5m0rTh7XDBlvo9Y4vm13EXmfttwI4mBo1EG15fxJhUiCLbiiyCf/ZA6MFAhg3pGIZGdGIVjtPn6UcMk9A/UUr9PhoNsCENw1APAq0gpH73e+M+0ueyHbabc3vkbcdtzcf/fiy+NxQEjf9ud/ELBHAXJ0nk4z+MXH2Ev/kWyV4k7SkvpPc9Qr38F6RPWnM9cN6DJ0AdD1BhtgABtmoRoFCvPsBAumNm6soZG2Gk5GyVTo2sJncSyp0jQTYoR6WDvTwaaEcHsxHfvuWhHA3a6bN7twRKtcGok6NsCi7jYRrM2jExsUFMxMQYuJbMhuWNOumEJy9hi29Dmg5zMp/A5+hhPG19j1vBrq8JTLr8ki5VLPmG/PynJHVul440bxg5xuymHUFPBshC+nA9I1FmwbRBTNHAcik3Oae0cxKoI3MOriM42UrPe51nsaGxJ+WfXubAsP84aabUlQSJ1IiE0iPETLUU4CATgfXSCSpuRFRmCGbO+wSpAnzaeaCYW1VNEysRtuXCEL1kUFUbbtMv3Tilt/1c11jt3Q5bbMa84cpWipp8Elw3MZhOHsOlwwVUQM3lAR35JiFQbaYCRnMF2lxAWoOg2gyoIV4PouX8HytNIfLhqpJtXB4vjiViUI8IJ7bkC4ikkQvKksnOTKICwnqWSZ9YS5f0WCxmpgjbIq7EJcM4aI2nmhLNY2JIUgOjXZFWBHb+x5oh6cwb0Tv1ackHdKi0I9OO2wE9aogIOn540CCCziyhN+IaejtgAONKznHlHyutPrHGwCx9S6B8kfS4Mfi4Eyv7OU730bT1SCBjt834cXsf43zVjPUqqJjgrjeGnBxSG4aYAKFuVbeCfkDIjAqMb6yLNIbCuvXhMH2/+k2vkNpkORhR59N1CkzoOENvneIosjYmuTxlhUzaGEJQ/iWqx4dmwpmKjrwTiTGTCVozNAYqk/zXOndWxuWSmJkQpJw3pK5KX6QrLt5LATMqpmPAQhkhK6PUjzHUn7E0gHE0kPE0iKkolgkUx9SZmVAdDgpffdyJKg3k7VmzYGCwVXGz/tXmkOIp+vcWs+EMuhhvN0h9uhfzWJziBQmCREGSIFmQIkgVpAnSBRmC//6hkLZwaVhwxlrJSOdqlFtOYxlau9F2QN5Y98xmIAsiM1HVp2VFX+DHHGg6Ecjh3vmqtidX3qHI2qycTk/iwxSt5UzTmEP92ZBnEWTk4Mx8Mpl78ZDokxg/KWb+Q0QkvdKVmq3TMW+RXEgrsziSAfNXFMhDc60N5N9jQzjfO0kBKpUZl0ZmwJ41j/B9Hz6wmRaJB84niNmQrzp9eSlQCDDzazGDdVi3P36VZQ+Jy4f9UBNp+3zTjqI4abaFAm+GShVaXlsGdF3FYzZcDI6cori4kMxUECl9IjJZpzkvitAoxKue+90pDMvcKRxLl53TmOKCmV/xRolNKSqqUxc6LStOETmFOiLZZptlZepcKiAzteG8PEdpnQpbOMNcMsR4RR2Bs0cKFEvSmIjAFcnarqwUL4lDhHmnVkwu1IwshbiCcgvOheZuYyOteufZZwlcTlLgnZ3o/WcYdzZHW/WGaqaVfmTZ1aWCceJjkbZqsfbkOtcFlUZM/jy+hXHDbaUobWqqXaeWobbLO99yG5N3U4wxco0rQGGcOLASFMXeJoham8M+/x6O2WywK2l4HGbq1CoUyC/IZikQhdq3SiuNrvAEj0AVu9x2x3lp/xWzahaxidezFVtdcb5uEnzyl0ZmYiuKI0exvCd4Xc9CV1KB0db00z92wDPde0kukbvZIWN6jUWFTmPIC/Y4UPCm8UfDTFZpZNon1qLFTkBhxzB+FjQRA2Q/YRJT8pQigslMaUpFyAG8TMlXigiqmAZX4xgijKjRlGpLE0GdplRfCaJo0JQaSxNBk6ZmMzcya0FmrcisDdn0Q3HI2sWSppYigmlM1XT/kLQZSNpMJG0WkjYbSZuDpM1F0uYhFc1HxU4m1QJjDK6iL0S5uSj5rgXc3RejEigtcRBtqYPQsiTskmO5vosV+q4VGIKbOkDg0jtRrq+Em1YloaTFar3EGr1EUC8R0kus1Uus00usL97ABr2BjXoDm/QGNhuWtMVBKOwg/i78lT7hBsAvDmwHc/ao3vmUbBmhjeYySZNWvGkfZAgISDSaDo1SVpzGDsAEkF8B+gEapViUoZgUWXcRIGFZNm6gWbAKk0bp0k1MHG9fLYtV4iS2SmLEQFARzRcnf9PUS0LVn05/J9MiRRBU3v2IrvW974v4N00L7ZMk0wXP1409CHo/an8zTRHD3eSJ6m8D4YMkZNl3M79sqeuAsr/m3f+8/yl7A50aiAEJgeBeMWzu7ui9UfUBCe2TIqZIoOd/3/udRBOQidQZUERzb2/VwZN1H/Sju82ew2H2Wfr6qvfVf3hqwDvAIpkQVFy4B9Pe9e4/XvPeceu7h3dvO56iJPf0+A6cqA2ip18ER+iFgggiuOkvj24bby0N9j2UHIkgqIt+sVgfodC4YghLSMjSZbH0VR/6dMDrYJeKHilKTemt6v6kvzvn3/RrdWtr0GoN/xL+Sex/cPYLUpepx9cz/D46UPU5KXgAQa+NDps1v6J3xP1i2HtaDB0M9aX2deA7SYff//+gUCovMmIK/qfsFcOk+4Y5ZN97XlG6zebqtMbKgeRFi51vnxTQYBUik2rS/Cn6PC8ADR8FGxsRPB82dzfND90gIcshOcYUkfjherBz53odpm6TP8txlwOZ71xmfHHOvq053qFF/MRlS3jP0ELudrf2OeN8DHvp6ZceLe8qKYvWz/7yp0u4dKPfli3CYq0O13Ih71mylJ80tOi10On8wi+F4+LWgDPeJ30msSQt9/vkmHq9/Lvo2b461mP801v3W4xTcs6CbvF9UDdrSt+A8OUbpSh55qAUFXWznBBfdeJ8a4d7ugT5tvxUza3h9m4H7ptTqiG4z0g5dc0X29OcGlhpGFMpQo9ytTS+NViZpNdvU4kWx+LKxNY10kQ1yqGXrhe4/1nvP7E+nd5A92TtaRplbHSqoIdOqtRWti+fkB5/n1+/VvCmz12pG1kpQWsfi1ftlBobm0bpngs16CHkbIwdLnParxtTV3QYRlfJ0KFskH7pdN/YDn+yRuSd7sNH3aO0DYPggk6uWuXrfOc+fa3VTxFVvKaNxHsiHmsXyCLIE5yuOeN3/Jdf8HBL/5M6shjyhxHx9BjB1O0+4NLOnjLLSxwO7ukN4jMbOIcD879KLSi6Pk61Oqm2377n8079PXEEQ7cy7OKEC9nbpet118fxweTafpt69x/Bt8UqGzNQt7aelpc44dn5cqhwf71+qKp/Zf/+a0zcizOUWpl/iBcSXip0pplkatCchoH5c5aUM8I7/dWxAej8WicPL1URFZ9BDJelUwEwTkGqUhgSlydVes95YdXvhh9Gfz/aeFWvgVb4tuLbcv4+wLdutVZv/cUonwBD/6eDlE0aSiKK/uoH3+J1wDE/jMVqY2ysGufN84oIXB0sPzy8ollX/LegY74DgJXJR57sn+VGza0x3DnuIgABFM15LmajjjsNlYj+JEZGbuRYcAMOWxFkPN2w6Wd46xo4gVWQR/X4lyI/R6K/YK0110GzudPRW7Y+UOBGTfNNzHeYT0fiH0taunBpq9HEW8OKSaBGj21L0MqenEmNRWBAWDWAk4CpNoEZJ2tTaPFgbQYj8HxtFilErs3BTRwT8uO1NXQaWfIotchmPkAF5mMBAliEmZiOGVgCG9LgRzpscMAOOwowlT3JhusdazXGSC/hxR3UlmWVwWHpOIKheqONvjyhSiTHIkVUco5bnji8m//zL7PKaT1Vl5I6UE609f+gkr6MZKVyKc7zJRmCahLsdlyA5fdQkRSan9LgnnLEyGSkaKJCJog0wAgvepWBt80+1yKln1bMVtCljfNWDueKLsWwaEbBSfSPTEmVRsUcYYMnEjcjeyCZzBXK9E9BYBXLKjOSpUDR+nEV3TFSUdQaz+ot98QxgXwx0GQ+EEUAKB2qZPkQQ0GqFD8UPFMqyaCHM24BZmSGic9EYMagKizOw9Hz50DMrDLrqqLkTAhplMictiCAx5S3BIUQdeJeLnBy2CNtMfz6cV4u8XKoFZQesbf9YZiIERiHjaNodDW6LgcirX/mPnJIkBGDUpTBhSa0EIr38D5hCIszhCM8URGBqImoWjpvpt1ebu/v3Gl3qJfMnNM+9V+kiRFyROTPHQWOcs1dNW94/ukKMPZBvDi55i5CttdeJz84DLngLqjcdwEZ87bFFR8CIG35OAkDVN6VRDZ7aq67NteYqZ2lpT8oYB2CytoBd6VuAx4WgiAsnuj3WohG+LugzXiQRDeM3XYXlULv4dp5VFYC) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.22"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.notebook-container{display:flex;flex-direction:column;height:100%;background-color:#f8f9fa;position:relative}.progress-container{position:sticky;top:0;background-color:#fff;border-bottom:1px solid #e9ecef;z-index:10}.progress-bar{width:100%;height:2px;background-color:#e9ecef;border-radius:1px;overflow:hidden;position:relative}.progress-fill{height:100%;background:#06c;transition:width .3s ease-in-out}.notebook-header{background-color:#fff;border-bottom:2px solid #e9ecef;padding:1rem 2rem;box-shadow:0 2px 4px #0000000d}.notebook-header h2{margin:0;font-size:1.5rem;color:#333}.notebook-content{flex:1;overflow-y:auto;padding:0;max-width:800px;margin:0 auto;width:100%;background:#fff;position:relative}.notebook-content-inner{padding:3rem;position:relative;z-index:1}.notebook-title{margin:0 0 2rem;color:#333;font-size:2rem;font-weight:600;border-bottom:2px solid #0066cc;padding-bottom:1rem}.notebook-body{font-size:1.1rem;line-height:1.8;color:#333}.notebook-body h1,.notebook-body h2,.notebook-body h3{color:#06c;margin:2rem 0 1rem;font-weight:600}.notebook-body h1{font-size:1.8rem}.notebook-body h2{font-size:1.5rem}.notebook-body h3{font-size:1.3rem}.notebook-body p{margin:1rem 0}.notebook-body strong{color:#06c;font-weight:600}.notebook-body ul,.notebook-body ol{margin:1rem 0;padding-left:2rem}.notebook-body li{margin:.5rem 0;line-height:1.8}.notebook-body ul li{list-style-type:disc}.notebook-body ol li{list-style-type:decimal}.notebook-body .katex{font-size:1.2em}.notebook-body .katex-display{margin:1.5rem 0;text-align:center}.notebook-body .katex-display .katex{font-size:1.4em}.math-small .katex{font-size:.9em!important}.math-large .katex{font-size:1.5em!important}.math-huge .katex{font-size:2em!important}.streaming-cursor{display:inline-block;animation:blink 1s infinite;font-weight:400;color:#333;margin-left:2px}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.notebook-body .underline{text-decoration:underline;text-decoration-color:red;text-decoration-thickness:2px}.notebook-body .boxed{border:2px solid #0066cc;padding:.2em .4em;border-radius:4px;display:inline-block}.typing-indicator{display:flex;align-items:center;gap:4px;padding:1rem 2rem}.typing-indicator span{width:8px;height:8px;background-color:#666;border-radius:50%;animation:typing 1.4s infinite ease-in-out}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(.8);opacity:.5}40%{transform:scale(1);opacity:1}}.notebook-content::-webkit-scrollbar{width:8px}.notebook-content::-webkit-scrollbar-track{background:#f1f1f1}.notebook-content::-webkit-scrollbar-thumb{background:#888;border-radius:4px}.notebook-content::-webkit-scrollbar-thumb:hover{background:#555}@media (max-width: 768px){.notebook-content,.entry-content{padding:1rem}.notebook-entry.student .entry-content{margin-left:1rem}}.annotation-canvas{position:absolute;top:0;left:0;width:100%;height:100%;cursor:crosshair;pointer-events:auto;touch-action:none}.annotation-canvas.enabled{z-index:10;cursor:crosshair!important}.annotation-canvas.disabled{z-index:0;pointer-events:none;opacity:1}.annotation-canvas.enabled[data-tool=pen]{cursor:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAOCAYAAAAfSC3RAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAA7AAAAOwBeShxvQAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAADMSURBVCiRrdChbsJQGIbh5xRBEIlEIpFIJBKJRCKRSCQSiUQikUgkEolEIpEIBBKJRCKRSCRnuZu0DG4tp+FN/uT7n/P/OX9KRMSYMUPSv2hTyinbbLFhyzZZMpokCeFYsqRkg+WFgT0HShZMqVmzxiXmQI8ZUxKcW7CjYMaYLW0WdLGwMOA8m5o9DzzwzBsfrPjiiS9uqTZU4LMhoOaHFjY2Nj0+afHCK3e88YgXNgqLl3Dp5fIH/wUnTtSEBNSc+OOIe6G3HwAArTOHaPJNagAAAABJRU5ErkJggg==) 2 14,crosshair!important}.annotation-canvas.enabled[data-tool=eraser]{cursor:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAOCAYAAAAfSC3RAAAABHNCSVQICAgIfAhkiAAAAAlwSFlzAAAA7AAAAOwBeShxvQAAABl0RVh0U29mdHdhcmUAd3d3Lmlua3NjYXBlLm9yZ5vuPBoAAAC0SURBVCiRrdGhDoJQGIbh5xONRqPRaDQajUaj0Wg0Go1Go9FoNBqNRqPRaDQajUaj0Wg0GiUwuMCFH75f/p3znZMA0KBBDa9AA5eQkBICAgIccnoEJMQkTJkwoU9Ai4AxA2Z06NPHI8DDx8ej5I9f5szoMaDHmIoxLdrE5Pf9sgYBBa1nXlzJqNOkQouGXlxYOLi4NDhz5MiBLUc27DiwJaVgx4kcE5OcLStW5BRYmJiUX28DAGfm5/5hJbgAAAAASUVORK5CYII=) 7 7,auto!important}.annotation-canvas.enabled[data-tool=line],.annotation-canvas.enabled[data-tool=arrow],.annotation-canvas.enabled[data-tool=highlight]{cursor:crosshair!important}.annotation-toolbar{position:fixed;right:20px;top:50%;transform:translateY(-50%);background:#fff;border:1px solid #e0e0e0;border-radius:8px;box-shadow:0 2px 10px #0000001a;padding:1rem;z-index:100;width:80px;transition:opacity .3s ease}.annotation-toolbar.disabled{opacity:.7}.toolbar-header{text-align:center;margin-bottom:1rem;padding-bottom:.5rem;border-bottom:1px solid #e0e0e0}.toggle-btn{background:none;border:none;font-size:1.5rem;cursor:pointer;padding:.25rem;transition:transform .2s ease}.toggle-btn:hover{transform:scale(1.1)}.tool-section,.color-section,.width-section,.action-section{margin-bottom:1rem}.annotation-toolbar h4{margin:0 0 .5rem;font-size:.75rem;color:#666;text-align:center}.tool-grid{display:grid;grid-template-columns:1fr 1fr;gap:.25rem}.tool-btn{background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:.5rem;cursor:pointer;transition:all .2s ease;font-size:1.2rem;display:flex;align-items:center;justify-content:center;aspect-ratio:1}.tool-btn:hover{background:#e0e0e0}.tool-btn.active{background:#06c;border-color:#06c}.tool-icon{filter:grayscale(0)}.tool-btn.active .tool-icon{filter:brightness(2)}.color-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.25rem}.color-btn{width:20px;height:20px;border:2px solid transparent;border-radius:50%;cursor:pointer;transition:all .2s ease}.color-btn:hover{transform:scale(1.2)}.color-btn.active{border-color:#333;box-shadow:0 0 0 2px #fff,0 0 0 3px #333}.width-section{text-align:center}.width-slider{width:100%;margin:.5rem 0}.width-value{font-size:.75rem;color:#666}.action-section{display:flex;gap:.25rem;justify-content:center}.action-btn{background:#f5f5f5;border:1px solid #ddd;border-radius:4px;padding:.25rem .5rem;cursor:pointer;font-size:1.2rem;transition:all .2s ease}.action-btn:hover:not(:disabled){background:#e0e0e0}.action-btn:disabled{opacity:.5;cursor:not-allowed}.clear-btn:hover:not(:disabled){background:#f66;color:#fff}@media (max-width: 768px){.annotation-toolbar{right:10px;width:60px;padding:.5rem}.tool-btn,.color-btn{font-size:1rem}}.notebook-with-annotation{position:relative;height:100%;width:100%}.notebook-wrapper{position:relative;height:100%;width:100%;overflow:hidden}.notebook-wrapper .notebook-container{position:relative;z-index:1}.notebook-wrapper .notebook-content{position:relative}@media (pointer: coarse){.annotation-toolbar{right:5px}.annotation-toolbar .tool-btn,.annotation-toolbar .color-btn,.annotation-toolbar .action-btn{min-width:44px;min-height:44px}}.help-button-container{position:relative}.help-button{width:36px;height:36px;border-radius:50%;background:#f0f0f0;border:1px solid #ddd;color:#666;font-size:18px;font-weight:700;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.help-button:hover{background:#e0e0e0;color:#333;transform:scale(1.05)}.help-menu{position:absolute;top:100%;right:0;margin-top:8px;background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000026;width:280px;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.help-menu-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid #eee}.help-menu-header h3{margin:0;font-size:16px;font-weight:600;color:#333}.help-menu-close{width:24px;height:24px;border:none;background:none;color:#999;font-size:20px;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.help-menu-close:hover{background:#f0f0f0;color:#666}.help-menu-items{padding:8px}.help-menu-item{width:100%;padding:12px 16px;border:none;background:none;border-radius:8px;display:flex;align-items:center;gap:12px;cursor:pointer;transition:all .2s ease;text-align:left}.help-menu-item:hover{background:#f8f8f8}.help-menu-icon{font-size:24px;flex-shrink:0}.help-menu-title{font-size:14px;font-weight:600;color:#333;margin-bottom:2px}.help-menu-desc{font-size:12px;color:#666}@media (max-width: 768px){.help-menu{position:fixed;top:auto;bottom:0;left:0;right:0;width:100%;margin:0;border-radius:12px 12px 0 0;animation:slideUp .3s ease}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}}:root{--mobile-breakpoint: 480px;--tablet-breakpoint: 768px;--desktop-breakpoint: 1024px;--large-desktop-breakpoint: 1440px}.container{width:100%;margin:0 auto;padding:0 1rem}@media screen and (max-width: 480px){.container{padding:0 .75rem}.nav-desktop{display:none}.nav-mobile{display:block}.form-container{padding:1rem;width:100%}input[type=text],input[type=email],input[type=password],textarea,select{width:100%;font-size:16px}button{width:100%;padding:.75rem;font-size:1rem}.card,.panel{border-radius:.5rem;padding:1rem;margin:.5rem 0}h1{font-size:1.75rem}h2{font-size:1.5rem}h3{font-size:1.25rem}p,.body-text{font-size:.875rem;line-height:1.5}.grid{grid-template-columns:1fr;gap:1rem}.flex-container{flex-direction:column}.problem-selector{width:100%}.chat-window{height:50vh;max-height:400px}.answer-box{width:100%}.reveal-slides-container{height:40vh}}@media screen and (min-width: 481px) and (max-width: 768px){.container{padding:0 1rem;max-width:720px}.grid{grid-template-columns:repeat(2,1fr);gap:1.5rem}.form-container{padding:2rem;max-width:500px;margin:0 auto}.chat-window{height:60vh;max-height:500px}.reveal-slides-container{height:50vh}}@media screen and (min-width: 769px) and (max-width: 1024px){.container{padding:0 2rem;max-width:960px}.nav-mobile{display:none}.nav-desktop{display:block}.grid{grid-template-columns:repeat(3,1fr);gap:2rem}.form-container{padding:3rem;max-width:600px;margin:0 auto}button{width:auto;padding:.5rem 1.5rem}}@media screen and (min-width: 1025px){.container{padding:0 2rem;max-width:1200px}.grid{grid-template-columns:repeat(4,1fr);gap:2rem}.grid-dashboard{grid-template-columns:250px 1fr}.learning-layout{display:grid;grid-template-columns:1fr 400px}}@media screen and (min-width: 1441px){.container{max-width:1400px}}@media (hover: none) and (pointer: coarse){button,a,input[type=submit],input[type=button]{min-height:44px;min-width:44px}button:hover,a:hover{background-color:inherit;color:inherit}}@media print{.no-print,.nav-mobile,.nav-desktop,.chat-window{display:none!important}body{font-size:12pt;color:#000;background:#fff}.container{width:100%;max-width:none}}@media (prefers-color-scheme: dark){:root{--bg-color: #1a1a1a;--text-color: #f0f0f0;--border-color: #333}}@media (prefers-contrast: high){*{border-width:2px!important}button,input,textarea{border:2px solid!important}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:root{--z-base: 1;--z-dropdown: 100;--z-sticky: 200;--z-overlay: 300;--z-modal-backdrop: 400;--z-modal: 500;--z-popover: 600;--z-tooltip: 700;--z-notification: 800;--z-alert: 900;--z-maximum: 9999}html,body{margin:0;padding:0;height:100%}.learning-layout{display:grid;grid-template-rows:auto 1fr auto;height:100vh;height:calc(var(--vh, 1vh) * 100);overflow:hidden}.app-root{display:flex;flex-direction:column;min-height:100vh}.answer-section-full{background-color:#fff;border-top:1px solid #e0e0e0;box-shadow:0 -2px 10px #0000000d;width:100%}.page-grid{display:grid;grid-template-columns:320px 1fr;min-height:0;overflow:hidden;height:100%}@media screen and (max-width: 768px){.page-grid{grid-template-columns:1fr;position:relative}.chat-pane{position:fixed;left:-100%;top:60px;width:100%;height:calc(100vh - 140px);z-index:100;transition:left .3s ease}.chat-pane.mobile-open{left:0}.slide-pane{margin-top:60px}.answer-section-full{padding:.75rem}.learning-layout{grid-template-rows:auto 1fr auto}}.chat-pane{background:#f0f8ff;color:#333;display:flex;flex-direction:column;border-right:1px solid #d0e3ff;height:100%;overflow:hidden}.chat-container{display:flex;flex-direction:column;height:100%}.audio-controls{display:flex;justify-content:flex-end;gap:8px;padding:4px 12px;background:#e0f0ff;border-bottom:1px solid #d0e3ff}.tts-toggle{background:none;border:1px solid #b8d8ff;border-radius:20px;padding:6px 12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .2s ease}.tts-toggle:hover{background:#0066cc1a}.tts-toggle.active{background:#06c;color:#fff;border-color:#06c}.speaker-icon{font-size:16px}.speaker-icon.muted{opacity:.5}.speaking-indicator{color:#0f0;font-size:8px;animation:pulse 1s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.3}to{opacity:1}}.sound-toggle{background:none;border:1px solid #b8d8ff;border-radius:20px;padding:6px 12px;cursor:pointer;display:flex;align-items:center;gap:4px;transition:all .2s ease;font-size:16px}.sound-toggle:hover{background:#0066cc1a}.sound-toggle.active{background:#06c;color:#fff;border-color:#06c}@media screen and (max-width: 768px){.chat-pane{border-right:none;box-shadow:2px 0 10px #0000001a}}.chat-window{flex:1;overflow-y:auto;padding:12px;margin-bottom:0;max-height:calc(100vh - 60px)}.answer-box{display:flex;gap:6px;padding:10px;background:#e6f2ff;flex-wrap:wrap;position:sticky;bottom:0;width:100%;z-index:10;box-shadow:0 -2px 5px #0000000d}@media screen and (max-width: 480px){.answer-box{flex-direction:column;gap:8px}.answer-box input{width:100%;min-width:unset}.button-group{flex-direction:column}.button-group button{width:100%}}.answer-box input{flex:1;padding:8px;border:1px solid #b8d8ff;border-radius:4px;min-width:200px}.answer-box button{padding:8px 16px;border-radius:4px;border:none;cursor:pointer;font-weight:500;height:36px;display:flex;align-items:center;justify-content:center}.answer-box .submit-button{background:#06c;color:#fff}.answer-box .submit-button:disabled{background:#b8d8ff;cursor:not-allowed}.answer-box .skip-button{background:#f0f0f0;color:#666}.answer-box .skip-button:hover{background:#e0e0e0}.answer-box .hint-button{background:gold;color:#333}.answer-box .hint-button:hover{background:#fc0}.answer-box .next-button{background:#28a745;color:#fff;font-weight:600}.answer-box .next-button:hover{background:#218838}.answer-box .next-button:disabled{background:#6c757d;cursor:not-allowed;opacity:.6;position:relative}.answer-box .next-button:disabled:hover{background:#6c757d}.answer-box .next-button:disabled[title]:not([title=""]):hover:after{content:attr(title);position:absolute;bottom:100%;left:50%;transform:translate(-50%);margin-bottom:8px;padding:8px 12px;background-color:#000000e6;color:#fff;font-size:12px;white-space:nowrap;border-radius:4px;pointer-events:none;z-index:1000}.answer-box .next-button:disabled[title]:not([title=""]):hover:before{content:"";position:absolute;bottom:100%;left:50%;transform:translate(-50%);margin-bottom:2px;border:6px solid transparent;border-top-color:#000000e6;pointer-events:none;z-index:1000}.answer-box .back-to-problems-button{background:#17a2b8;color:#fff;font-weight:600}.answer-box .back-to-problems-button:hover{background:#138496}.answer-box .complete-button{background:#28a745;color:#fff;font-weight:600}.answer-box .complete-button:hover{background:#218838}.inquiry-candidates{margin-left:auto;display:flex;flex-wrap:wrap;gap:8px;align-items:flex-start;flex-direction:row-reverse;justify-content:flex-end;max-height:80px;overflow:hidden;flex:1}.inquiry-button{padding:6px 12px;border-radius:20px;border:1px solid #28a745;background:#d4edda;color:#155724;font-size:13px;line-height:1.3;cursor:pointer;transition:all .2s ease;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:250px;height:30px;display:flex;align-items:center}.inquiry-button:hover{background:#c3e6cb;border-color:#1e7e34;transform:translateY(-1px);box-shadow:0 2px 4px #0000001a;max-width:none;white-space:normal;height:auto;z-index:10;position:relative}.inquiry-button:disabled{background:#e9ecef;border-color:#dee2e6;color:#6c757d;cursor:not-allowed;opacity:.6}.inquiry-button:disabled:hover{transform:none;box-shadow:none;background:#e9ecef;max-width:250px;white-space:nowrap;height:30px}.input-mode-toggle{display:flex;gap:4px;width:100%;margin-bottom:8px}.mode-btn{flex:1;padding:6px;border:1px solid #b8d8ff;background:#f0f8ff;color:#666;border-radius:4px;cursor:pointer;transition:all .2s}.mode-btn.active{background:#06c;color:#fff;border-color:#06c}.button-group{display:flex;gap:6px;width:100%;align-items:flex-start}.logo-bar{background:#06c;color:#fff;height:60px;display:flex;align-items:center;padding:0 20px;font-size:1.4rem;font-weight:600;-webkit-user-select:none;user-select:none}@media screen and (max-width: 768px){.logo-bar{display:none}}.logo-text{letter-spacing:1px}.slide-pane{position:relative;background:#fff;display:flex;flex-direction:column;min-height:0;height:100%;overflow:hidden}.slide-content{flex:1;overflow:hidden}.chat-window>div{margin-bottom:10px;padding:8px;border-radius:6px;line-height:1.4}.chat-window>.chat-dummy-top{margin-bottom:8px;padding:0;line-height:1.4;border-radius:0}.tutor{color:#06c;font-weight:500;background-color:#e0f0ff80}.tutor.explanation{color:#06c;font-style:italic;margin-top:8px;background-color:#e0f0ff4d}.tutor.question{color:#856404;font-weight:600;margin-top:12px;background-color:#fff3cde6;border-left:3px solid #ffc107}.tutor.message-question{color:#856404;font-weight:600;background-color:#fff3cde6;border-left:4px solid #ffc107;padding-left:12px}.tutor.message-normal{color:#06c;background-color:#e0f0ff99;border-left:4px solid #4A90E2;padding-left:12px}.tutor.message-correct{color:#00a86b;font-weight:600;background-color:#dcffdccc;border-left:4px solid #00a86b;padding-left:12px;animation:correctPulse .5s ease-in-out}.tutor.message-incorrect{color:#dc3545;font-weight:500;background-color:#ffdcdccc;border-left:4px solid #dc3545;padding-left:12px}.tutor.message-summary{color:#6c757d;font-weight:600;background-color:#f0f0f0e6;border-left:4px solid #6c757d;padding-left:12px;margin-top:16px}.tutor.message-hint{color:#856404;font-weight:500;background-color:#fff3cdb3;border-left:4px solid #ffc107;padding-left:12px}.tutor.message-error{color:#dc3545;font-weight:500;background-color:#ffdcdccc;border-left:4px solid #dc3545;padding-left:12px}@keyframes correctPulse{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.student{color:teal;background-color:#e6fffa80;text-align:right}.record-zone{background:#f9fbff;border-top:1px solid #d0e3ff;max-height:35%;min-height:160px;overflow-y:auto;padding:10px 12px}@media screen and (max-width: 768px){.record-zone{max-height:200px;min-height:120px}}.record-zone.empty{display:flex;align-items:center;justify-content:center;color:#888}.placeholder{margin:0}.record-card{background:#fff;border:1px solid #b8d8ff;border-radius:6px;margin-bottom:10px;padding:10px 12px;cursor:pointer;transition:all .15s ease}.record-card:hover{box-shadow:0 3px 6px #00000014;transform:translateY(-2px)}.record-card h4{margin:0 0 4px;font-size:1rem;color:#06c}.record-card .preview{margin:0;font-size:.85rem;color:#444}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:#fff;border-radius:8px;padding:24px 28px;max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:0 4px 12px #00000026}.modal-content h3{margin-top:0;color:#06c}.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;font-size:1.4rem;cursor:pointer}.chat-window .katex{font-size:1.1em!important}.problem-selector{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;padding:20px;background:#e6f2ff}@media screen and (max-width: 768px){.problem-selector{padding:15px}.problem-list{gap:10px}.problem-item{padding:12px 15px}}.problem-selector h2{margin-bottom:30px;color:#06c;font-weight:600}.problem-list{display:flex;flex-direction:column;gap:15px;width:100%;max-width:500px}.problem-item{background:#fff;border:1px solid #b8d8ff;border-radius:8px;padding:15px 20px;cursor:pointer;transition:all .2s ease;box-shadow:0 2px 4px #0066cc0d}.problem-item:hover{transform:translateY(-2px);box-shadow:0 4px 8px #0066cc1a;border-color:#06c;background:#f8fbff}.problem-item h3{margin:0;color:#06c}.mobile-chat-toggle{display:none;position:fixed;bottom:20px;right:20px;width:60px;height:60px;background:#06c;color:#fff;border-radius:50%;border:none;box-shadow:0 4px 12px #0066cc4d;z-index:90;cursor:pointer;font-size:24px}@media screen and (max-width: 768px){.mobile-chat-toggle{display:flex;align-items:center;justify-content:center}}.mobile-only{display:none}@media screen and (max-width: 768px){.mobile-only{display:block}.desktop-only{display:none}}.logo-bar{position:relative;display:flex;justify-content:space-between;align-items:center;padding:0 2rem}.logo-bar-right,.experience-display{display:flex;align-items:center;gap:1rem}.level-badge{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:.5rem 1rem;border-radius:20px;font-weight:700;font-size:.9rem;box-shadow:0 2px 4px #0000001a}.exp-info{display:flex;align-items:center;gap:.5rem}.total-exp{color:#333;font-weight:600;font-size:.95rem}.session-exp{color:#667eea;font-weight:600;font-size:.9rem;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){.logo-bar{padding:0 1rem}.experience-display{gap:.5rem}.level-badge{padding:.4rem .8rem;font-size:.8rem}.total-exp,.session-exp{font-size:.85rem}}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}.modal-content{background:#fff;border-radius:12px;padding:0;max-width:500px;width:90%;box-shadow:0 10px 40px #0003;animation:slideUp .3s ease-out;overflow:hidden}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem;text-align:center}.modal-header h2{margin:0;font-size:2rem;font-weight:600}.modal-body{padding:2rem;text-align:center}.problem-title{font-size:1.5rem;font-weight:600;color:#333;margin-bottom:1rem}.completion-message{font-size:1.1rem;color:#666;line-height:1.6;margin:0}.experience-earned{display:inline-flex;align-items:center;gap:.5rem;background:#fef3c7;border:2px solid #fbbf24;border-radius:20px;padding:.5rem 1rem;margin:1rem 0;animation:bounceIn .5s ease-out}.modal-footer{padding:1.5rem 2rem;background:#f8f9fa;display:flex;gap:1rem;justify-content:center}.modal-button{padding:12px 24px;border:none;border-radius:6px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;min-width:150px}.modal-button.primary{background:#667eea;color:#fff}.modal-button.primary:hover{background:#5a67d8;transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.modal-button.secondary{background:#e2e8f0;color:#4a5568}.modal-button.secondary:hover{background:#cbd5e0;transform:translateY(-1px)}@media (max-width: 600px){.modal-content{width:95%;margin:20px}.modal-header h2{font-size:1.5rem}.problem-title{font-size:1.3rem}.modal-footer{flex-direction:column}.modal-button{width:100%}}.upgrade-modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000000b3;display:flex;align-items:center;justify-content:center;z-index:10000;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.upgrade-modal{background:#fff;border-radius:16px;width:90%;max-width:600px;max-height:90vh;overflow-y:auto;position:relative;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(50px);opacity:0}to{transform:translateY(0);opacity:1}}.upgrade-modal .close-button{position:absolute;top:20px;right:20px;background:none;border:none;font-size:32px;color:#666;cursor:pointer;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.upgrade-modal .close-button:hover{background-color:#f0f0f0;color:#333}.upgrade-content{padding:40px}.upgrade-content h2{margin:0 0 30px;font-size:28px;text-align:center;color:#333}.feature-highlight{text-align:center;margin-bottom:40px;padding:30px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:12px;color:#fff}.feature-icon{font-size:48px;margin-bottom:16px}.feature-highlight h3{margin:0 0 8px;font-size:32px;font-weight:700}.feature-description{margin:0;font-size:20px;opacity:.95}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;margin-bottom:40px}.feature-item{display:flex;align-items:center;gap:12px;padding:12px;background:#f8f9fa;border-radius:8px}.feature-check{color:#10b981;font-size:20px;font-weight:700}.pricing-section{text-align:center;margin-bottom:40px}.price-tag{display:inline-flex;align-items:baseline;padding:20px 40px;background:#f0f9ff;border:2px solid #3b82f6;border-radius:12px}.price{font-size:36px;font-weight:700;color:#3b82f6}.price-period{font-size:18px;color:#64748b;margin-left:8px}.action-section{text-align:center;margin-bottom:30px}.join-waiting-list-button{padding:16px 48px;font-size:18px;font-weight:600;background:#3b82f6;color:#fff;border:none;border-radius:8px;cursor:pointer;transition:all .2s}.join-waiting-list-button:hover:not(:disabled){background:#2563eb;transform:translateY(-1px);box-shadow:0 4px 12px #3b82f666}.join-waiting-list-button:disabled{opacity:.6;cursor:not-allowed}.waiting-list-status{padding:24px;background:#f0fdf4;border:2px solid #10b981;border-radius:12px}.status-icon{font-size:48px;color:#10b981;margin-bottom:16px}.waiting-list-status h4{margin:0 0 8px;font-size:20px;color:#065f46}.waiting-list-status p{margin:0;color:#047857}.error-message{background:#fee2e2;border:1px solid #ef4444;color:#991b1b;padding:12px 16px;border-radius:8px;margin-bottom:20px;text-align:center}.demo-notice{text-align:center;padding:16px;background:#fef3c7;border-radius:8px}.demo-notice p{margin:0;color:#92400e;font-size:14px}@media (max-width: 768px){.upgrade-modal{width:95%;margin:20px}.upgrade-content{padding:24px}.upgrade-content h2,.feature-highlight h3{font-size:24px}.feature-description{font-size:16px}.price{font-size:28px}.features-grid{grid-template-columns:1fr}}.problems-page{min-height:100vh;background:#f5f7fa;padding:80px 20px 40px}.problems-container{max-width:1200px;margin:0 auto}.problems-header{text-align:center;margin-bottom:40px;position:relative}.problems-header h1{font-size:2.5rem;color:#333;margin-bottom:10px}.problems-header p{font-size:1.1rem;color:#666}.problems-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:24px;padding:0}.problem-card{background:#fff;border-radius:12px;padding:24px;box-shadow:0 2px 8px #0000001a;transition:all .3s ease;cursor:pointer;border:2px solid transparent}.problem-card:not(.completed):hover{transform:translateY(-4px);box-shadow:0 8px 24px #00000026;border-color:#6366f1}.problem-card h3{font-size:1.3rem;color:#333;margin:0 0 12px;font-weight:600}.problem-meta{display:flex;gap:16px;margin-top:16px}.difficulty-badge,.category-badge{font-size:.875rem;padding:4px 12px;border-radius:16px;font-weight:500}.difficulty-badge{background:#e0e7ff;color:#4338ca}.difficulty-badge.easy{background:#d1fae5;color:#065f46}.difficulty-badge.medium{background:#fed7aa;color:#92400e}.difficulty-badge.hard{background:#fee2e2;color:#991b1b}.category-badge{background:#f3f4f6;color:#4b5563}.progress-indicators{display:flex;gap:8px;margin-top:12px;align-items:center;flex-wrap:wrap}.progress-step{font-size:.75rem;padding:4px 10px;border-radius:12px;font-weight:600;transition:all .2s ease}.progress-step.available{background:#3b82f6;color:#fff;cursor:pointer}.progress-step.available:hover{background:#2563eb;transform:scale(1.05)}.progress-step.completed{background:#10b981;color:#fff}.progress-step.locked{background:#e5e7eb;color:#9ca3af;cursor:not-allowed}.completion-badge{font-size:.875rem;padding:4px 12px;border-radius:16px;font-weight:700;background:#fbbf24;color:#78350f;margin-left:auto;animation:pulse 2s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.8}}.problem-card.completed{background:#f0fdf4;border-color:#86efac}.problem-card.completed:hover{border-color:#22c55e}.demo-info{display:flex;align-items:center;gap:16px;margin-top:16px;padding:12px 20px;background:#fef3c7;border-radius:8px;border:1px solid #fbbf24}.demo-badge{font-weight:600;color:#92400e}.upgrade-button{padding:6px 16px;background:#3b82f6;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:600;cursor:pointer;transition:all .2s}.upgrade-button:hover{background:#2563eb;transform:translateY(-1px)}@media (max-width: 768px){.problems-page{padding:60px 16px 32px}.problems-header h1{font-size:2rem}.problems-grid{grid-template-columns:1fr;gap:16px}.problem-card{padding:20px}}@media (min-width: 769px) and (max-width: 1024px){.problems-grid{grid-template-columns:repeat(2,1fr)}}.graph-page{height:100vh;background-color:#f5f5f5;display:flex;flex-direction:column;overflow:hidden}.graph-header{background-color:#fff;padding:.75rem 2rem;box-shadow:0 2px 4px #0000001a;display:flex;align-items:center;gap:2rem;position:relative;flex-shrink:0}.search-box{margin-left:auto;display:flex;align-items:center;gap:1rem}.search-box input{padding:.5rem 1rem;border:1px solid #ddd;border-radius:4px;width:300px;font-size:1rem}.search-results{font-size:.9rem;color:#666}.progress-stats{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.progress-stats h3{margin-top:0;margin-bottom:1rem;color:#333}.overall-progress{margin-bottom:1.5rem}.overall-progress span{display:block;margin-bottom:.5rem;font-weight:600;color:#333}.progress-bar{width:100%;height:5px;background-color:#e0e0e0;overflow:hidden}.progress-fill{height:100%;background-color:#4caf50;transition:width .3s ease}.grade-progress{display:flex;flex-direction:column;gap:.5rem}.grade-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem;background-color:#f5f5f5;border-radius:4px}.grade-item span:first-child{font-weight:500}.grade-item span:last-child{font-weight:600;color:#2196f3}.back-button{background:none;border:none;color:#2196f3;cursor:pointer;font-size:1rem;padding:.5rem 1rem;border-radius:4px;transition:background-color .2s}.back-button:hover{background-color:#2196f31a}.graph-container{display:flex;padding:1rem;gap:1rem;flex:1;overflow:hidden}.graph-main{flex:1;background-color:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;padding:1rem;display:flex;justify-content:center;align-items:center;overflow:hidden;position:relative}.graph-main svg{width:100%;height:100%}.graph-sidebar{width:320px;display:flex;flex-direction:column;gap:1rem;overflow-y:auto;height:100%}.legend{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.legend h3{margin-top:0;margin-bottom:1rem;color:#333}.legend-item{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem}.legend-color{width:20px;height:20px;border-radius:50%;border:2px solid white;box-shadow:0 1px 3px #0003}.legend-color.completed{background-color:#4caf50}.legend-color.available{background-color:#2196f3}.legend-color.in-progress{background-color:#ff9800}.legend-color.locked{background-color:#9e9e9e}.filters{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.filters h3{margin-top:0;margin-bottom:1rem;color:#333}.filter-section{margin-bottom:1.5rem}.filter-section:last-child{margin-bottom:0}.filter-section h4{margin-top:0;margin-bottom:.5rem;color:#666;font-size:.9rem;text-transform:uppercase}.filter-option{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem;cursor:pointer;padding:.25rem;border-radius:4px;transition:background-color .2s}.filter-option:hover{background-color:#f5f5f5}.filter-option input[type=checkbox]{cursor:pointer}.filter-option span{font-size:.95rem;color:#333}.category-legend{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.category-legend h3{margin-top:0;margin-bottom:1rem;color:#333}.category-legend .legend-item{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem}.category-legend .legend-color{width:16px;height:16px;border-radius:50%;border:2px solid white;box-shadow:0 1px 3px #0003}.recommendations{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.recommendations h3{margin-top:0;margin-bottom:1rem;color:#333;display:flex;align-items:center;gap:.5rem}.recommendations h3:before{content:"⭐";color:gold}.recommendation-item{padding:1rem;margin-bottom:.75rem;background-color:#fff8dc;border:1px solid #FFD700;border-radius:6px;transition:transform .2s,box-shadow .2s}.recommendation-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #ffd7004d}.recommendation-item h4{margin:0 0 .5rem;color:#333;font-size:1rem}.recommendation-item button{padding:.5rem 1rem;background-color:gold;color:#333;border:none;border-radius:4px;font-weight:600;cursor:pointer;transition:background-color .2s}.recommendation-item button:hover{background-color:#ffc700}.zoom-controls{position:absolute;bottom:1rem;right:1rem;display:flex;flex-direction:column;gap:.5rem;background-color:#fff;padding:.5rem;border-radius:8px;box-shadow:0 2px 8px #00000026}.zoom-controls button{width:40px;height:40px;border:none;background-color:#f5f5f5;color:#333;font-size:1.2rem;font-weight:700;border-radius:4px;cursor:pointer;transition:background-color .2s,transform .1s;display:flex;align-items:center;justify-content:center}.zoom-controls button:hover{background-color:#e0e0e0;transform:scale(1.05)}.zoom-controls button:active{transform:scale(.95)}.node-details{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 2px 8px #0000001a}.node-details h3{margin-top:0;margin-bottom:1rem;color:#333}.node-details p{margin-bottom:.5rem;color:#666}.start-button{width:100%;margin-top:1rem;padding:.75rem;background-color:#2196f3;color:#fff;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background-color .2s}.start-button:hover{background-color:#1976d2}.loading{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.2rem;color:#666}.node{cursor:pointer}.link{opacity:.6}.graph-problem-card{transition:all .3s ease;-webkit-user-select:none;user-select:none}.graph-problem-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #00000026!important}.graph-problem-card.completed{background:#f0fdf4!important}.graph-problem-card.highlighted{animation:pulse 1.5s infinite}.graph-problem-card.recommended:before{content:"⭐";position:absolute;top:-10px;right:-10px;font-size:20px;animation:sparkle 1.5s infinite}@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}@keyframes sparkle{0%,to{transform:scale(1) rotate(0)}50%{transform:scale(1.2) rotate(180deg)}}.selected-problem-card{position:absolute;top:20px;right:20px;background:#fff;border-radius:12px;box-shadow:0 4px 20px #00000026;padding:24px;width:320px;z-index:100;animation:slideIn .3s ease-out}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}.selected-problem-card .close-button{position:absolute;top:10px;right:10px;background:none;border:none;font-size:24px;color:#999;cursor:pointer;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.selected-problem-card .close-button:hover{background-color:#f0f0f0;color:#333}.selected-problem-card h3{margin:0 0 16px;font-size:18px;color:#333;padding-right:30px}.selected-problem-card .problem-meta{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}.difficulty-badge,.category-badge,.status-badge{padding:4px 12px;border-radius:16px;font-size:12px;font-weight:500}.difficulty-badge.difficulty-1{background-color:#e3f2fd;color:#1976d2}.difficulty-badge.difficulty-2{background-color:#fff3e0;color:#f57c00}.difficulty-badge.difficulty-3{background-color:#ffebee;color:#d32f2f}.category-badge{background-color:#f3e5f5;color:#7b1fa2}.status-badge.completed{background-color:#e8f5e9;color:#388e3c}.status-badge.available{background-color:#e3f2fd;color:#1976d2}.status-badge.in_progress{background-color:#fff8e1;color:#ffa000}.status-badge.locked{background-color:#f5f5f5;color:#757575}.selected-problem-card .progress-indicators{display:flex;gap:8px;margin:16px 0}.progress-step{flex:1;padding:8px 12px;border:2px solid #e0e0e0;border-radius:8px;background:#fff;color:#757575;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s;text-align:center}.progress-step.completed{background-color:#4caf50;color:#fff;border-color:#4caf50}.progress-step.available{background-color:#2196f3;color:#fff;border-color:#2196f3}.progress-step.available:hover{background-color:#1976d2;transform:translateY(-1px)}.progress-step.locked{background-color:#f5f5f5;color:#bdbdbd;cursor:not-allowed}.progress-step:disabled{cursor:not-allowed;opacity:.6}.problem-description{margin-top:16px;font-size:14px;color:#666;line-height:1.6}.node-circle{cursor:pointer;transition:all .2s}.node-circle:hover{filter:brightness(1.1)}@media (max-width: 768px){.graph-container{flex-direction:column;padding:.5rem}.graph-sidebar{width:100%;order:-1;max-height:200px}.graph-main{height:calc(100vh - 350px)}.legend{display:flex;flex-wrap:wrap;gap:1rem}.legend h3{width:100%}.graph-header{flex-direction:column;gap:1rem}.search-box{margin-left:0;width:100%}.search-box input{width:100%}.zoom-controls{flex-direction:row;bottom:.5rem;right:.5rem}}.confirmation-page{max-width:800px;margin:0 auto;padding:2rem;min-height:calc(100vh - 60px)}.confirmation-container{background:#fff;border-radius:8px;padding:3rem;box-shadow:0 2px 8px #0000001a}.confirmation-container h1{color:#06c;margin-bottom:2rem;text-align:center}.problem-equation{background:#f8f9fa;border-radius:8px;padding:2rem;margin-bottom:2rem;text-align:center}.problem-equation h2{font-size:2rem;color:#333;margin-bottom:1rem;font-family:Times New Roman,serif}.problem-equation p{color:#666;font-size:1.1rem}.progress-indicator{text-align:center;color:#666;font-size:1.1rem;margin-bottom:2rem;font-weight:500}.step-container{background:#fff;border:2px solid #e9ecef;border-radius:8px;padding:2rem;margin-bottom:2rem}.step-container h3{color:#333;margin-bottom:1.5rem;font-size:1.3rem}.template-area{font-size:1.2rem;line-height:2.5;margin-bottom:2rem;padding:1rem;background:#f8f9fa;border-radius:4px;text-align:center}.blank-input.incorrect{border-color:#dc3545;background:#fff5f5;animation:shake .3s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.hint-box{background:#fff3cd;border:1px solid #ffeaa7;border-radius:4px;padding:1rem;margin-bottom:1.5rem;color:#856404;font-size:1rem}.check-button{display:block;margin:0 auto;padding:12px 32px;background:#06c;color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.check-button:hover:not(:disabled){background:#0052cc;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.check-button:disabled{background:#6c757d;cursor:not-allowed;opacity:.6}.completion-container{text-align:center;padding:3rem}.score-display{font-size:3rem;font-weight:700;color:#06c;margin-bottom:2rem}.experience-earned{display:inline-flex;align-items:center;gap:.5rem;background:#fef3c7;border:2px solid #fbbf24;border-radius:20px;padding:.5rem 1rem;margin-bottom:1.5rem;animation:bounceIn .5s ease-out}.next-button{padding:12px 32px;background:#28a745;color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.next-button:hover{background:#218838;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.retry-button{padding:12px 32px;background:#fbbf24;color:#78350f;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease;margin-right:1rem}.retry-button:hover{background:#f59e0b;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.back-button{padding:12px 32px;background:#6b7280;color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.back-button:hover{background:#4b5563;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.button-group{display:flex;gap:1rem;justify-content:center;margin-top:1.5rem}.badge-notification-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .2s ease-out}.badge-notification-content{background:#fff;border-radius:16px;padding:0;max-width:500px;width:90%;max-height:80vh;overflow:hidden;box-shadow:0 20px 40px #0000004d;animation:bounceIn .5s ease-out}@keyframes bounceIn{0%{transform:scale(.8);opacity:0}50%{transform:scale(1.05)}to{transform:scale(1);opacity:1}}.badge-notification-header{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#fff;padding:2rem;text-align:center}.badge-notification-header h2{margin:0;font-size:2rem;text-shadow:2px 2px 4px rgba(0,0,0,.2)}.badge-notification-body{padding:2rem;max-height:400px;overflow-y:auto}.new-badge-item{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;background:#f9fafb;border-radius:12px;margin-bottom:1rem;border:2px solid #10b981}.new-badge-item:last-child{margin-bottom:0}.new-badge-icon{font-size:3rem;flex-shrink:0}.new-badge-info h3{margin:0 0 .5rem;font-size:1.3rem;color:#333}.new-badge-info p{margin:0;color:#666;font-size:1rem}.badge-notification-footer{padding:1.5rem 2rem;background:#f9fafb;display:flex;gap:1rem;justify-content:center}.view-badges-button{padding:12px 24px;background:#667eea;color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.view-badges-button:hover{background:#5a67d8;transform:translateY(-1px);box-shadow:0 4px 12px #667eea4d}.close-button{padding:12px 24px;background:#e5e7eb;color:#4b5563;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.close-button:hover{background:#d1d5db}.exercise-page{max-width:900px;margin:0 auto;padding:2rem;min-height:calc(100vh - 60px)}.exercise-container{background:#fff;border-radius:8px;padding:3rem;box-shadow:0 2px 8px #0000001a}.exercise-container h1{color:#06c;margin-bottom:3rem;text-align:center}.start-container{text-align:center;padding:3rem}.description{font-size:1.2rem;color:#666;margin-bottom:2rem}.time-limit-info{font-size:1.5rem;font-weight:700;color:#333;margin-bottom:3rem}.start-button{padding:16px 48px;background:#28a745;color:#fff;border:none;border-radius:4px;font-size:1.3rem;font-weight:600;cursor:pointer;transition:all .2s ease}.start-button:hover{background:#218838;transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.timer-bar{position:sticky;top:0;background:#fff;border-bottom:2px solid #e9ecef;padding:1rem;margin:-3rem -3rem 2rem;text-align:center;z-index:10}.timer{font-size:1.5rem;font-weight:700;color:#06c}.timer.warning{color:#dc3545;animation:pulse 1s infinite}@keyframes pulse{0%{opacity:1}50%{opacity:.7}to{opacity:1}}.problems-list{margin-bottom:3rem}.problem-item{background:#f8f9fa;border-radius:8px;padding:2rem;margin-bottom:2rem}.problem-item h3{color:#333;margin-bottom:1rem;font-size:1.3rem}.equation{font-size:1.5rem;font-family:Times New Roman,serif;text-align:center;margin-bottom:1rem;padding:1rem;background:#fff;border-radius:4px}.instruction{color:#666;margin-bottom:1rem;text-align:center}.template-area{font-size:1.2rem;line-height:2.5;text-align:center;padding:1rem}.blank-input{width:80px;padding:8px 12px;margin:0 8px;border:2px solid #0066cc;border-radius:4px;font-size:1.1rem;text-align:center;background:#fff;transition:all .2s ease}.blank-input:focus{outline:none;border-color:#0052cc;box-shadow:0 0 0 3px #0066cc1a}.blank-input:disabled{background:#f8f9fa;cursor:not-allowed}.blank-input.incorrect{border-color:#dc3545;background:#fff5f5}.blank-input.correct{border-color:#28a745;background:#f5fff5}.submit-button{display:block;margin:0 auto;padding:12px 48px;background:#06c;color:#fff;border:none;border-radius:4px;font-size:1.2rem;font-weight:600;cursor:pointer;transition:all .2s ease}.submit-button:hover{background:#0052cc;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.completion-container{text-align:center;padding:2rem}.completion-container h2{color:#28a745;font-size:2.5rem;margin-bottom:2rem}.score-display{font-size:3rem;font-weight:700;color:#06c;margin-bottom:1rem}.experience-earned{display:inline-flex;align-items:center;gap:.5rem;background:#fef3c7;border:2px solid #fbbf24;border-radius:20px;padding:.5rem 1rem;margin-bottom:1rem;animation:bounceIn .5s ease-out}.exp-icon{font-size:1.2rem}.exp-amount{font-size:1.2rem;font-weight:700;color:#d97706}@keyframes bounceIn{0%{transform:scale(0);opacity:0}50%{transform:scale(1.1)}to{transform:scale(1);opacity:1}}.time-display{font-size:1.5rem;color:#666;margin-bottom:3rem}.results-list{text-align:left;max-width:600px;margin:0 auto 3rem}.result-item{padding:1rem;margin-bottom:1rem;border-radius:4px;border:2px solid transparent}.result-item.correct{background:#d4edda;border-color:#c3e6cb}.result-item.incorrect{background:#f8d7da;border-color:#f5c6cb}.result-item h4{margin:0 0 .5rem;color:#333}.solution{margin:0;color:#666;font-size:.95rem}.action-buttons{margin-top:2rem}.back-button{padding:12px 32px;background:#17a2b8;color:#fff;border:none;border-radius:4px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.back-button:hover{background:#138496;transform:translateY(-1px);box-shadow:0 4px 8px #0000001a}.error-message{text-align:center;color:#dc3545;font-size:1.2rem;padding:3rem}.badges-page{min-height:calc(100vh - 60px);background:#f5f7fa;padding:2rem}.badges-container{max-width:1200px;margin:0 auto}.badges-header{text-align:center;margin-bottom:3rem;position:relative}.badges-header h1{font-size:2.5rem;color:#333;margin-bottom:1rem}.badges-stats{display:flex;justify-content:center;gap:2rem;font-size:1.1rem;color:#666}.stat-item strong{color:#667eea;font-weight:700}.back-to-dashboard-button{background:none;border:none;color:#2196f3;cursor:pointer;font-size:1rem;padding:.5rem 1rem;border-radius:4px;transition:background-color .2s;position:absolute;left:0;top:50%;transform:translateY(-50%)}.back-to-dashboard-button:hover{background-color:#2196f31a}.badges-tabs{display:flex;justify-content:center;gap:1rem;margin-bottom:3rem}.badges-tabs .tab-button{padding:12px 24px;background:#fff;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;font-weight:500;color:#6b7280;cursor:pointer;transition:all .2s ease}.badges-tabs .tab-button:hover{border-color:#667eea;color:#667eea}.badges-tabs .tab-button.active{background:#667eea;border-color:#667eea;color:#fff}.badge-category{margin-bottom:3rem}.category-title{font-size:1.5rem;color:#4b5563;margin-bottom:1.5rem;padding-bottom:.5rem;border-bottom:2px solid #e5e7eb}.badges-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.5rem}.badge-card{background:#fff;border-radius:12px;padding:2rem;text-align:center;transition:all .3s ease;border:2px solid transparent;position:relative;overflow:hidden}.badge-card.earned{border-color:#10b981;box-shadow:0 4px 12px #10b9811a}.badge-card.earned:hover{transform:translateY(-4px);box-shadow:0 8px 24px #10b98133}.badge-card.unearned{background:#f9fafb;border-color:#e5e7eb;opacity:.8}.badge-card.secret{background:linear-gradient(135deg,#f3f4f6,#e5e7eb)}.badge-icon{font-size:3rem;margin-bottom:1rem}.badge-card.unearned .badge-icon{filter:grayscale(100%);opacity:.5}.badge-name{font-size:1.1rem;font-weight:600;color:#333;margin-bottom:.5rem}.badge-description{font-size:.9rem;color:#666;margin-bottom:1rem}.badge-earned-date{font-size:.8rem;color:#10b981;font-weight:500}.badge-progress{margin-top:1rem;font-size:.85rem;color:#6b7280}.progress-bar{height:8px;background:#e5e7eb;border-radius:4px;margin-top:.5rem;overflow:hidden}.progress-fill{height:100%;background:linear-gradient(to right,#667eea,#764ba2);border-radius:4px;transition:width .3s ease}@media (max-width: 768px){.badges-page{padding:1rem}.badges-header h1{font-size:2rem}.badges-stats{flex-direction:column;gap:.5rem}.badges-tabs{flex-wrap:wrap}.badges-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1rem}.badge-card{padding:1.5rem}.badge-icon{font-size:2.5rem}}.error-boundary{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:#f9fafb;padding:20px}.error-container{max-width:600px;width:100%;background:#fff;border-radius:12px;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;padding:40px;text-align:center}.error-icon{font-size:64px;margin-bottom:20px;animation:shake .5s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-10px)}75%{transform:translate(10px)}}.error-container h1{font-size:24px;color:#111827;margin-bottom:16px;font-weight:600}.error-message{color:#6b7280;font-size:16px;margin-bottom:24px;line-height:1.5}.error-details{background-color:#f3f4f6;border:1px solid #e5e7eb;border-radius:6px;padding:16px;margin-bottom:24px;text-align:left}.error-details summary{cursor:pointer;color:#6b7280;font-size:14px;margin-bottom:12px;-webkit-user-select:none;user-select:none}.error-details pre{font-family:Courier New,Courier,monospace;font-size:12px;color:#dc2626;overflow-x:auto;white-space:pre-wrap;word-break:break-word;margin:8px 0}.error-actions{display:flex;gap:12px;justify-content:center;margin-bottom:24px}.error-reset-button,.error-home-button{padding:10px 20px;border-radius:6px;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease;border:none}.error-reset-button{background-color:#3b82f6;color:#fff}.error-reset-button:hover{background-color:#2563eb;transform:translateY(-1px);box-shadow:0 4px 6px -1px #0000001a}.error-home-button{background-color:#f3f4f6;color:#374151;border:1px solid #e5e7eb}.error-home-button:hover{background-color:#e5e7eb}.error-help{color:#9ca3af;font-size:14px;line-height:1.5}@media (max-width: 640px){.error-container{padding:24px}.error-icon{font-size:48px}.error-container h1{font-size:20px}.error-actions{flex-direction:column;width:100%}.error-reset-button,.error-home-button{width:100%}}.reveal .r-stretch,.reveal .stretch{max-width:none;max-height:none}.reveal pre.r-stretch code,.reveal pre.stretch code{height:100%;max-height:100%;box-sizing:border-box}.reveal .r-fit-text{display:inline-block;white-space:nowrap}.reveal .r-stack{display:grid;grid-template-rows:100%}.reveal .r-stack>*{grid-area:1/1;margin:auto}.reveal .r-hstack,.reveal .r-vstack{display:flex}.reveal .r-hstack img,.reveal .r-hstack video,.reveal .r-vstack img,.reveal .r-vstack video{min-width:0;min-height:0;object-fit:contain}.reveal .r-vstack{flex-direction:column;align-items:center;justify-content:center}.reveal .r-hstack{flex-direction:row;align-items:center;justify-content:center}.reveal .items-stretch{align-items:stretch}.reveal .items-start{align-items:flex-start}.reveal .items-center{align-items:center}.reveal .items-end{align-items:flex-end}.reveal .justify-between{justify-content:space-between}.reveal .justify-around{justify-content:space-around}.reveal .justify-start{justify-content:flex-start}.reveal .justify-center{justify-content:center}.reveal .justify-end{justify-content:flex-end}html.reveal-full-page{width:100%;height:100%;height:100vh;height:calc(var(--vh,1vh) * 100);height:100dvh;overflow:hidden}.reveal-viewport{height:100%;overflow:hidden;position:relative;line-height:1;margin:0;background-color:#fff;color:#000;--r-controls-spacing:12px;--r-overlay-header-height:40px;--r-overlay-margin:0px;--r-overlay-padding:6px;--r-overlay-gap:5px}@media screen and (max-width:1024px),(max-height:768px){.reveal-viewport{--r-overlay-header-height:26px}}.reveal-viewport:fullscreen{top:0!important;left:0!important;width:100%!important;height:100%!important;transform:none!important}.reveal .fragment{transition:all .2s ease}.reveal .fragment:not(.custom){opacity:0;visibility:hidden;will-change:opacity}.reveal .fragment.visible{opacity:1;visibility:inherit}.reveal .fragment.disabled{transition:none}.reveal .fragment.grow{opacity:1;visibility:inherit}.reveal .fragment.grow.visible{transform:scale(1.3)}.reveal .fragment.shrink{opacity:1;visibility:inherit}.reveal .fragment.shrink.visible{transform:scale(.7)}.reveal .fragment.zoom-in{transform:scale(.1)}.reveal .fragment.zoom-in.visible{transform:none}.reveal .fragment.fade-out{opacity:1;visibility:inherit}.reveal .fragment.fade-out.visible{opacity:0;visibility:hidden}.reveal .fragment.semi-fade-out{opacity:1;visibility:inherit}.reveal .fragment.semi-fade-out.visible{opacity:.5;visibility:inherit}.reveal .fragment.strike{opacity:1;visibility:inherit}.reveal .fragment.strike.visible{text-decoration:line-through}.reveal .fragment.fade-up{transform:translateY(40px)}.reveal .fragment.fade-up.visible{transform:translate(0)}.reveal .fragment.fade-down{transform:translateY(-40px)}.reveal .fragment.fade-down.visible{transform:translate(0)}.reveal .fragment.fade-right{transform:translate(-40px)}.reveal .fragment.fade-right.visible{transform:translate(0)}.reveal .fragment.fade-left{transform:translate(40px)}.reveal .fragment.fade-left.visible{transform:translate(0)}.reveal .fragment.current-visible,.reveal .fragment.fade-in-then-out{opacity:0;visibility:hidden}.reveal .fragment.current-visible.current-fragment,.reveal .fragment.fade-in-then-out.current-fragment{opacity:1;visibility:inherit}.reveal .fragment.fade-in-then-semi-out{opacity:0;visibility:hidden}.reveal .fragment.fade-in-then-semi-out.visible{opacity:.5;visibility:inherit}.reveal .fragment.fade-in-then-semi-out.current-fragment,.reveal .fragment.highlight-blue,.reveal .fragment.highlight-current-blue,.reveal .fragment.highlight-current-green,.reveal .fragment.highlight-current-red,.reveal .fragment.highlight-green,.reveal .fragment.highlight-red{opacity:1;visibility:inherit}.reveal .fragment.highlight-red.visible{color:#ff2c2d}.reveal .fragment.highlight-green.visible{color:#17ff2e}.reveal .fragment.highlight-blue.visible{color:#1b91ff}.reveal .fragment.highlight-current-red.current-fragment{color:#ff2c2d}.reveal .fragment.highlight-current-green.current-fragment{color:#17ff2e}.reveal .fragment.highlight-current-blue.current-fragment{color:#1b91ff}.reveal:after{content:"";font-style:italic}.reveal iframe{z-index:1}.reveal a{position:relative}@keyframes bounce-right{0%,10%,25%,40%,50%{transform:translate(0)}20%{transform:translate(10px)}30%{transform:translate(-5px)}}@keyframes bounce-left{0%,10%,25%,40%,50%{transform:translate(0)}20%{transform:translate(-10px)}30%{transform:translate(5px)}}@keyframes bounce-down{0%,10%,25%,40%,50%{transform:translateY(0)}20%{transform:translateY(10px)}30%{transform:translateY(-5px)}}.reveal .controls{display:none;position:absolute;top:auto;bottom:var(--r-controls-spacing);right:var(--r-controls-spacing);left:auto;z-index:11;color:#000;pointer-events:none;font-size:10px}.reveal .controls button{position:absolute;padding:0;background-color:transparent;border:0;outline:0;cursor:pointer;color:currentColor;transform:scale(.9999);transition:color .2s ease,opacity .2s ease,transform .2s ease;z-index:2;pointer-events:auto;font-size:inherit;visibility:hidden;opacity:0;-webkit-appearance:none;-webkit-tap-highlight-color:transparent}.reveal .controls .controls-arrow:after,.reveal .controls .controls-arrow:before{content:"";position:absolute;top:0;left:0;width:2.6em;height:.5em;border-radius:.25em;background-color:currentColor;transition:all .15s ease,background-color .8s ease;transform-origin:.2em 50%;will-change:transform}.reveal .controls .controls-arrow{position:relative;width:3.6em;height:3.6em}.reveal .controls .controls-arrow:before{transform:translate(.5em) translateY(1.55em) rotate(45deg)}.reveal .controls .controls-arrow:after{transform:translate(.5em) translateY(1.55em) rotate(-45deg)}.reveal .controls .controls-arrow:hover:before{transform:translate(.5em) translateY(1.55em) rotate(40deg)}.reveal .controls .controls-arrow:hover:after{transform:translate(.5em) translateY(1.55em) rotate(-40deg)}.reveal .controls .controls-arrow:active:before{transform:translate(.5em) translateY(1.55em) rotate(36deg)}.reveal .controls .controls-arrow:active:after{transform:translate(.5em) translateY(1.55em) rotate(-36deg)}.reveal .controls .navigate-left{right:6.4em;bottom:3.2em;transform:translate(-10px)}.reveal .controls .navigate-left.highlight{animation:bounce-left 2s 50 both ease-out}.reveal .controls .navigate-right{right:0;bottom:3.2em;transform:translate(10px)}.reveal .controls .navigate-right .controls-arrow{transform:rotate(180deg)}.reveal .controls .navigate-right.highlight{animation:bounce-right 2s 50 both ease-out}.reveal .controls .navigate-up{right:3.2em;bottom:6.4em;transform:translateY(-10px)}.reveal .controls .navigate-up .controls-arrow{transform:rotate(90deg)}.reveal .controls .navigate-down{right:3.2em;bottom:-1.4em;padding-bottom:1.4em;transform:translateY(10px)}.reveal .controls .navigate-down .controls-arrow{transform:rotate(-90deg)}.reveal .controls .navigate-down.highlight{animation:bounce-down 2s 50 both ease-out}.reveal .controls[data-controls-back-arrows=faded] .navigate-up.enabled{opacity:.3}.reveal .controls[data-controls-back-arrows=faded] .navigate-up.enabled:hover{opacity:1}.reveal .controls[data-controls-back-arrows=hidden] .navigate-up.enabled{opacity:0;visibility:hidden}.reveal .controls .enabled{visibility:visible;opacity:.9;cursor:pointer;transform:none}.reveal .controls .enabled.fragmented{opacity:.5}.reveal .controls .enabled.fragmented:hover,.reveal .controls .enabled:hover{opacity:1}.reveal:not(.rtl) .controls[data-controls-back-arrows=faded] .navigate-left.enabled{opacity:.3}.reveal:not(.rtl) .controls[data-controls-back-arrows=faded] .navigate-left.enabled:hover{opacity:1}.reveal:not(.rtl) .controls[data-controls-back-arrows=hidden] .navigate-left.enabled{opacity:0;visibility:hidden}.reveal.rtl .controls[data-controls-back-arrows=faded] .navigate-right.enabled{opacity:.3}.reveal.rtl .controls[data-controls-back-arrows=faded] .navigate-right.enabled:hover{opacity:1}.reveal.rtl .controls[data-controls-back-arrows=hidden] .navigate-right.enabled{opacity:0;visibility:hidden}.reveal[data-navigation-mode=linear].has-horizontal-slides .navigate-down,.reveal[data-navigation-mode=linear].has-horizontal-slides .navigate-up{display:none}.reveal:not(.has-vertical-slides) .controls .navigate-left,.reveal[data-navigation-mode=linear].has-horizontal-slides .navigate-left{bottom:1.4em;right:5.5em}.reveal:not(.has-vertical-slides) .controls .navigate-right,.reveal[data-navigation-mode=linear].has-horizontal-slides .navigate-right{bottom:1.4em;right:.5em}.reveal:not(.has-horizontal-slides) .controls .navigate-up{right:1.4em;bottom:5em}.reveal:not(.has-horizontal-slides) .controls .navigate-down{right:1.4em;bottom:.5em}.reveal.has-dark-background .controls{color:#fff}.reveal.has-light-background .controls{color:#000}.reveal.no-hover .controls .controls-arrow:active:before,.reveal.no-hover .controls .controls-arrow:hover:before{transform:translate(.5em) translateY(1.55em) rotate(45deg)}.reveal.no-hover .controls .controls-arrow:active:after,.reveal.no-hover .controls .controls-arrow:hover:after{transform:translate(.5em) translateY(1.55em) rotate(-45deg)}@media screen and (min-width:500px){.reveal-viewport{--r-controls-spacing:.8em}.reveal .controls[data-controls-layout=edges]{top:0;right:0;bottom:0;left:0}.reveal .controls[data-controls-layout=edges] .navigate-down,.reveal .controls[data-controls-layout=edges] .navigate-left,.reveal .controls[data-controls-layout=edges] .navigate-right,.reveal .controls[data-controls-layout=edges] .navigate-up{bottom:auto;right:auto}.reveal .controls[data-controls-layout=edges] .navigate-left{top:50%;left:var(--r-controls-spacing);margin-top:-1.8em}.reveal .controls[data-controls-layout=edges] .navigate-right{top:50%;right:var(--r-controls-spacing);margin-top:-1.8em}.reveal .controls[data-controls-layout=edges] .navigate-up{top:var(--r-controls-spacing);left:50%;margin-left:-1.8em}.reveal .controls[data-controls-layout=edges] .navigate-down{bottom:calc(var(--r-controls-spacing) - 1.4em + .3em);left:50%;margin-left:-1.8em}}.reveal .progress{position:absolute;display:none;height:3px;width:100%;bottom:0;left:0;z-index:10;background-color:#0003;color:#fff}.reveal .progress:after{content:"";display:block;position:absolute;height:10px;width:100%;top:-10px}.reveal .progress span{display:block;height:100%;width:100%;background-color:currentColor;transition:transform .8s cubic-bezier(.26,.86,.44,.985);transform-origin:0 0;transform:scaleX(0)}.reveal .slide-number{position:absolute;display:block;right:8px;bottom:8px;z-index:31;font-family:Helvetica,sans-serif;font-size:12px;line-height:1;color:#fff;background-color:#0006;padding:5px}.reveal .slide-number a{color:currentColor}.reveal .slide-number-delimiter{margin:0 3px}.reveal{position:relative;width:100%;height:100%;overflow:hidden;touch-action:pinch-zoom}.reveal.embedded{touch-action:pan-y}.reveal.embedded.is-vertical-slide{touch-action:none}.reveal .slides{position:absolute;width:100%;height:100%;top:0;right:0;bottom:0;left:0;margin:auto;pointer-events:none;overflow:visible;z-index:1;text-align:center;perspective:600px;perspective-origin:50% 40%}.reveal .slides>section{perspective:600px}.reveal .slides>section,.reveal .slides>section>section{display:none;position:absolute;width:100%;pointer-events:auto;z-index:10;transform-style:flat;transition:transform-origin .8s cubic-bezier(.26,.86,.44,.985),transform .8s cubic-bezier(.26,.86,.44,.985),visibility .8s cubic-bezier(.26,.86,.44,.985),opacity .8s cubic-bezier(.26,.86,.44,.985)}.reveal[data-transition-speed=fast] .slides section{transition-duration:.4s}.reveal[data-transition-speed=slow] .slides section{transition-duration:1.2s}.reveal .slides section[data-transition-speed=fast]{transition-duration:.4s}.reveal .slides section[data-transition-speed=slow]{transition-duration:1.2s}.reveal .slides>section.stack{padding-top:0;padding-bottom:0;pointer-events:none;height:100%}.reveal .slides>section.present,.reveal .slides>section>section.present{display:block;z-index:11;opacity:1}.reveal .slides>section:empty,.reveal .slides>section>section:empty,.reveal .slides>section>section[data-background-interactive],.reveal .slides>section[data-background-interactive]{pointer-events:none}.reveal.center,.reveal.center .slides,.reveal.center .slides section{min-height:0!important}.reveal .slides>section:not(.present),.reveal .slides>section>section:not(.present){pointer-events:none}.reveal.overview .slides>section,.reveal.overview .slides>section>section{pointer-events:auto}.reveal .slides>section.future,.reveal .slides>section.future>section,.reveal .slides>section.past,.reveal .slides>section.past>section,.reveal .slides>section>section.future,.reveal .slides>section>section.past{opacity:0}.reveal .slides>section[data-transition=slide].past,.reveal .slides>section[data-transition~=slide-out].past,.reveal.slide .slides>section:not([data-transition]).past{transform:translate(-150%)}.reveal .slides>section[data-transition=slide].future,.reveal .slides>section[data-transition~=slide-in].future,.reveal.slide .slides>section:not([data-transition]).future{transform:translate(150%)}.reveal .slides>section>section[data-transition=slide].past,.reveal .slides>section>section[data-transition~=slide-out].past,.reveal.slide .slides>section>section:not([data-transition]).past{transform:translateY(-150%)}.reveal .slides>section>section[data-transition=slide].future,.reveal .slides>section>section[data-transition~=slide-in].future,.reveal.slide .slides>section>section:not([data-transition]).future{transform:translateY(150%)}.reveal .slides>section[data-transition=linear].past,.reveal .slides>section[data-transition~=linear-out].past,.reveal.linear .slides>section:not([data-transition]).past{transform:translate(-150%)}.reveal .slides>section[data-transition=linear].future,.reveal .slides>section[data-transition~=linear-in].future,.reveal.linear .slides>section:not([data-transition]).future{transform:translate(150%)}.reveal .slides>section>section[data-transition=linear].past,.reveal .slides>section>section[data-transition~=linear-out].past,.reveal.linear .slides>section>section:not([data-transition]).past{transform:translateY(-150%)}.reveal .slides>section>section[data-transition=linear].future,.reveal .slides>section>section[data-transition~=linear-in].future,.reveal.linear .slides>section>section:not([data-transition]).future{transform:translateY(150%)}.reveal .slides section[data-transition=default].stack,.reveal.default .slides section.stack{transform-style:preserve-3d}.reveal .slides>section[data-transition=default].past,.reveal .slides>section[data-transition~=default-out].past,.reveal.default .slides>section:not([data-transition]).past{transform:translate3d(-100%,0,0) rotateY(-90deg) translate3d(-100%,0,0)}.reveal .slides>section[data-transition=default].future,.reveal .slides>section[data-transition~=default-in].future,.reveal.default .slides>section:not([data-transition]).future{transform:translate3d(100%,0,0) rotateY(90deg) translate3d(100%,0,0)}.reveal .slides>section>section[data-transition=default].past,.reveal .slides>section>section[data-transition~=default-out].past,.reveal.default .slides>section>section:not([data-transition]).past{transform:translate3d(0,-300px,0) rotateX(70deg) translate3d(0,-300px,0)}.reveal .slides>section>section[data-transition=default].future,.reveal .slides>section>section[data-transition~=default-in].future,.reveal.default .slides>section>section:not([data-transition]).future{transform:translate3d(0,300px,0) rotateX(-70deg) translate3d(0,300px,0)}.reveal .slides section[data-transition=convex].stack,.reveal.convex .slides section.stack{transform-style:preserve-3d}.reveal .slides>section[data-transition=convex].past,.reveal .slides>section[data-transition~=convex-out].past,.reveal.convex .slides>section:not([data-transition]).past{transform:translate3d(-100%,0,0) rotateY(-90deg) translate3d(-100%,0,0)}.reveal .slides>section[data-transition=convex].future,.reveal .slides>section[data-transition~=convex-in].future,.reveal.convex .slides>section:not([data-transition]).future{transform:translate3d(100%,0,0) rotateY(90deg) translate3d(100%,0,0)}.reveal .slides>section>section[data-transition=convex].past,.reveal .slides>section>section[data-transition~=convex-out].past,.reveal.convex .slides>section>section:not([data-transition]).past{transform:translate3d(0,-300px,0) rotateX(70deg) translate3d(0,-300px,0)}.reveal .slides>section>section[data-transition=convex].future,.reveal .slides>section>section[data-transition~=convex-in].future,.reveal.convex .slides>section>section:not([data-transition]).future{transform:translate3d(0,300px,0) rotateX(-70deg) translate3d(0,300px,0)}.reveal .slides section[data-transition=concave].stack,.reveal.concave .slides section.stack{transform-style:preserve-3d}.reveal .slides>section[data-transition=concave].past,.reveal .slides>section[data-transition~=concave-out].past,.reveal.concave .slides>section:not([data-transition]).past{transform:translate3d(-100%,0,0) rotateY(90deg) translate3d(-100%,0,0)}.reveal .slides>section[data-transition=concave].future,.reveal .slides>section[data-transition~=concave-in].future,.reveal.concave .slides>section:not([data-transition]).future{transform:translate3d(100%,0,0) rotateY(-90deg) translate3d(100%,0,0)}.reveal .slides>section>section[data-transition=concave].past,.reveal .slides>section>section[data-transition~=concave-out].past,.reveal.concave .slides>section>section:not([data-transition]).past{transform:translate3d(0,-80%,0) rotateX(-70deg) translate3d(0,-80%,0)}.reveal .slides>section>section[data-transition=concave].future,.reveal .slides>section>section[data-transition~=concave-in].future,.reveal.concave .slides>section>section:not([data-transition]).future{transform:translate3d(0,80%,0) rotateX(70deg) translate3d(0,80%,0)}.reveal .slides section[data-transition=zoom],.reveal.zoom .slides section:not([data-transition]){transition-timing-function:ease}.reveal .slides>section[data-transition=zoom].past,.reveal .slides>section[data-transition~=zoom-out].past,.reveal.zoom .slides>section:not([data-transition]).past{visibility:hidden;transform:scale(16)}.reveal .slides>section[data-transition=zoom].future,.reveal .slides>section[data-transition~=zoom-in].future,.reveal.zoom .slides>section:not([data-transition]).future{visibility:hidden;transform:scale(.2)}.reveal .slides>section>section[data-transition=zoom].past,.reveal .slides>section>section[data-transition~=zoom-out].past,.reveal.zoom .slides>section>section:not([data-transition]).past{transform:scale(16)}.reveal .slides>section>section[data-transition=zoom].future,.reveal .slides>section>section[data-transition~=zoom-in].future,.reveal.zoom .slides>section>section:not([data-transition]).future{transform:scale(.2)}.reveal.cube .slides{perspective:1300px}.reveal.cube .slides section{padding:30px;min-height:700px;backface-visibility:hidden;box-sizing:border-box;transform-style:preserve-3d}.reveal.center.cube .slides section{min-height:0}.reveal.cube .slides section:not(.stack):before{content:"";position:absolute;display:block;width:100%;height:100%;left:0;top:0;background:#0000001a;border-radius:4px;transform:translateZ(-20px)}.reveal.cube .slides section:not(.stack):after{content:"";position:absolute;display:block;width:90%;height:30px;left:5%;bottom:0;background:0 0;z-index:1;border-radius:4px;box-shadow:0 95px 25px #0003;transform:translateZ(-90px) rotateX(65deg)}.reveal.cube .slides>section.stack{padding:0;background:0 0}.reveal.cube .slides>section.past{transform-origin:100% 0;transform:translate3d(-100%,0,0) rotateY(-90deg)}.reveal.cube .slides>section.future{transform-origin:0 0;transform:translate3d(100%,0,0) rotateY(90deg)}.reveal.cube .slides>section>section.past{transform-origin:0 100%;transform:translate3d(0,-100%,0) rotateX(90deg)}.reveal.cube .slides>section>section.future{transform-origin:0 0;transform:translate3d(0,100%,0) rotateX(-90deg)}.reveal.page .slides{perspective-origin:0 50%;perspective:3000px}.reveal.page .slides section{padding:30px;min-height:700px;box-sizing:border-box;transform-style:preserve-3d}.reveal.page .slides section.past{z-index:12}.reveal.page .slides section:not(.stack):before{content:"";position:absolute;display:block;width:100%;height:100%;left:0;top:0;background:#0000001a;transform:translateZ(-20px)}.reveal.page .slides section:not(.stack):after{content:"";position:absolute;display:block;width:90%;height:30px;left:5%;bottom:0;background:0 0;z-index:1;border-radius:4px;box-shadow:0 95px 25px #0003;transform:translateZ(-90px) rotateX(65deg)}.reveal.page .slides>section.stack{padding:0;background:0 0}.reveal.page .slides>section.past{transform-origin:0 0;transform:translate3d(-40%,0,0) rotateY(-80deg)}.reveal.page .slides>section.future{transform-origin:100% 0;transform:translateZ(0)}.reveal.page .slides>section>section.past{transform-origin:0 0;transform:translate3d(0,-40%,0) rotateX(80deg)}.reveal.page .slides>section>section.future{transform-origin:0 100%;transform:translateZ(0)}.reveal .slides section[data-transition=fade],.reveal.fade .slides section:not([data-transition]),.reveal.fade .slides>section>section:not([data-transition]){transform:none;transition:opacity .5s}.reveal.fade.overview .slides section,.reveal.fade.overview .slides>section>section{transition:none}.reveal .slides section[data-transition=none],.reveal.none .slides section:not([data-transition]){transform:none;transition:none}.reveal .pause-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#000;visibility:hidden;opacity:0;z-index:100;transition:all 1s ease}.reveal .pause-overlay .resume-button{position:absolute;bottom:20px;right:20px;color:#ccc;border-radius:2px;padding:6px 14px;border:2px solid #ccc;font-size:16px;background:0 0;cursor:pointer}.reveal .pause-overlay .resume-button:hover{color:#fff;border-color:#fff}.reveal.paused .pause-overlay{visibility:visible;opacity:1}.reveal .no-transition,.reveal .no-transition *,.reveal .slides.disable-slide-transitions section{transition:none!important}.reveal .slides.disable-slide-transitions section{transform:none!important}.reveal .backgrounds{position:absolute;width:100%;height:100%;top:0;left:0;perspective:600px}.reveal .slide-background{display:none;position:absolute;width:100%;height:100%;opacity:0;visibility:hidden;overflow:hidden;background-color:#0000;transition:all .8s cubic-bezier(.26,.86,.44,.985)}.reveal .slide-background-content{position:absolute;width:100%;height:100%;background-position:50% 50%;background-repeat:no-repeat;background-size:cover}.reveal .slide-background.stack{display:block}.reveal .slide-background.present{opacity:1;visibility:visible;z-index:2}.print-pdf .reveal .slide-background{opacity:1!important;visibility:visible!important}.reveal .slide-background video{position:absolute;width:100%;height:100%;max-width:none;max-height:none;top:0;left:0;object-fit:cover}.reveal .slide-background[data-background-size=contain] video{object-fit:contain}.reveal>.backgrounds .slide-background[data-background-transition=none],.reveal[data-background-transition=none]>.backgrounds .slide-background:not([data-background-transition]){transition:none}.reveal>.backgrounds .slide-background[data-background-transition=slide],.reveal[data-background-transition=slide]>.backgrounds .slide-background:not([data-background-transition]){opacity:1}.reveal>.backgrounds .slide-background.past[data-background-transition=slide],.reveal[data-background-transition=slide]>.backgrounds .slide-background.past:not([data-background-transition]){transform:translate(-100%)}.reveal>.backgrounds .slide-background.future[data-background-transition=slide],.reveal[data-background-transition=slide]>.backgrounds .slide-background.future:not([data-background-transition]){transform:translate(100%)}.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=slide],.reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]){transform:translateY(-100%)}.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=slide],.reveal[data-background-transition=slide]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]){transform:translateY(100%)}.reveal>.backgrounds .slide-background.past[data-background-transition=convex],.reveal[data-background-transition=convex]>.backgrounds .slide-background.past:not([data-background-transition]){opacity:0;transform:translate3d(-100%,0,0) rotateY(-90deg) translate3d(-100%,0,0)}.reveal>.backgrounds .slide-background.future[data-background-transition=convex],.reveal[data-background-transition=convex]>.backgrounds .slide-background.future:not([data-background-transition]){opacity:0;transform:translate3d(100%,0,0) rotateY(90deg) translate3d(100%,0,0)}.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=convex],.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]){opacity:0;transform:translate3d(0,-100%,0) rotateX(90deg) translate3d(0,-100%,0)}.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=convex],.reveal[data-background-transition=convex]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]){opacity:0;transform:translate3d(0,100%,0) rotateX(-90deg) translate3d(0,100%,0)}.reveal>.backgrounds .slide-background.past[data-background-transition=concave],.reveal[data-background-transition=concave]>.backgrounds .slide-background.past:not([data-background-transition]){opacity:0;transform:translate3d(-100%,0,0) rotateY(90deg) translate3d(-100%,0,0)}.reveal>.backgrounds .slide-background.future[data-background-transition=concave],.reveal[data-background-transition=concave]>.backgrounds .slide-background.future:not([data-background-transition]){opacity:0;transform:translate3d(100%,0,0) rotateY(-90deg) translate3d(100%,0,0)}.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=concave],.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]){opacity:0;transform:translate3d(0,-100%,0) rotateX(-90deg) translate3d(0,-100%,0)}.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=concave],.reveal[data-background-transition=concave]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]){opacity:0;transform:translate3d(0,100%,0) rotateX(90deg) translate3d(0,100%,0)}.reveal>.backgrounds .slide-background[data-background-transition=zoom],.reveal[data-background-transition=zoom]>.backgrounds .slide-background:not([data-background-transition]){transition-timing-function:ease}.reveal>.backgrounds .slide-background.past[data-background-transition=zoom],.reveal[data-background-transition=zoom]>.backgrounds .slide-background.past:not([data-background-transition]){opacity:0;visibility:hidden;transform:scale(16)}.reveal>.backgrounds .slide-background.future[data-background-transition=zoom],.reveal[data-background-transition=zoom]>.backgrounds .slide-background.future:not([data-background-transition]){opacity:0;visibility:hidden;transform:scale(.2)}.reveal>.backgrounds .slide-background>.slide-background.past[data-background-transition=zoom],.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.past:not([data-background-transition]){opacity:0;visibility:hidden;transform:scale(16)}.reveal>.backgrounds .slide-background>.slide-background.future[data-background-transition=zoom],.reveal[data-background-transition=zoom]>.backgrounds .slide-background>.slide-background.future:not([data-background-transition]){opacity:0;visibility:hidden;transform:scale(.2)}.reveal[data-transition-speed=fast]>.backgrounds .slide-background{transition-duration:.4s}.reveal[data-transition-speed=slow]>.backgrounds .slide-background{transition-duration:1.2s}.reveal [data-auto-animate-target^=unmatched]{will-change:opacity}.reveal section[data-auto-animate]:not(.stack):not([data-auto-animate=running]) [data-auto-animate-target^=unmatched]{opacity:0}.reveal.overview{perspective-origin:50% 50%;perspective:700px}.reveal.overview .slides section{height:100%;top:0!important;opacity:1!important;overflow:hidden;visibility:visible!important;cursor:pointer;box-sizing:border-box}.reveal.overview .slides section.present,.reveal.overview .slides section:hover{outline:10px solid rgba(150,150,150,.4);outline-offset:10px}.reveal.overview .slides section .fragment{opacity:1;transition:none}.reveal.overview .slides section:after,.reveal.overview .slides section:before{display:none!important}.reveal.overview .slides>section.stack{padding:0;top:0!important;background:0 0;outline:0;overflow:visible}.reveal.overview .backgrounds{perspective:inherit}.reveal.overview .backgrounds .slide-background{opacity:1;visibility:visible;outline:10px solid rgba(150,150,150,.1);outline-offset:10px}.reveal.overview .backgrounds .slide-background.stack{overflow:visible}.reveal.overview .slides section,.reveal.overview-deactivating .slides section{transition:none}.reveal.overview .backgrounds .slide-background,.reveal.overview-deactivating .backgrounds .slide-background{transition:none}.reveal.rtl .slides,.reveal.rtl .slides h1,.reveal.rtl .slides h2,.reveal.rtl .slides h3,.reveal.rtl .slides h4,.reveal.rtl .slides h5,.reveal.rtl .slides h6{direction:rtl;font-family:sans-serif}.reveal.rtl code,.reveal.rtl pre{direction:ltr}.reveal.rtl ol,.reveal.rtl ul{text-align:right}.reveal.rtl .progress span{transform-origin:100% 0}.reveal.has-parallax-background .backgrounds{transition:all .8s ease}.reveal.has-parallax-background[data-transition-speed=fast] .backgrounds{transition-duration:.4s}.reveal.has-parallax-background[data-transition-speed=slow] .backgrounds{transition-duration:1.2s}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes scale-up{0%{transform:scale(.95)}to{transform:scale(1)}}.reveal [data-preview-image],.reveal [data-preview-link]:not(a):not([data-preview-link=false]),.reveal [data-preview-video]{cursor:zoom-in}.r-overlay{position:absolute;top:var(--r-overlay-margin);right:var(--r-overlay-margin);bottom:var(--r-overlay-margin);left:var(--r-overlay-margin);border-radius:min(var(--r-overlay-margin),6px);z-index:99;background:#000000f2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease;color:#fff;animation:fade-in .3s ease;font-family:ui-sans-serif,system-ui,-apple-system,Helvetica,sans-serif}.r-overlay-viewport{position:absolute;top:var(--r-overlay-padding);right:var(--r-overlay-padding);bottom:var(--r-overlay-padding);left:var(--r-overlay-padding);gap:var(--r-overlay-gap);display:flex;flex-direction:column}.r-overlay-header{display:flex;z-index:2;box-sizing:border-box;align-items:center;justify-content:flex-end;height:var(--r-overlay-header-height);gap:6px}.r-overlay-header .r-overlay-button{all:unset;display:flex;align-items:center;justify-content:center;min-width:var(--r-overlay-header-height);min-height:var(--r-overlay-header-height);padding:0 calc(var(--r-overlay-header-height)/ 4);opacity:1;border-radius:6px;font-size:18px;gap:8px;cursor:pointer;box-sizing:border-box}.r-overlay-header .r-overlay-button:hover{opacity:1;background-color:#ffffff26}.r-overlay-header .icon{display:inline-block;width:20px;height:20px;background-position:50% 50%;background-size:100%;background-repeat:no-repeat}.r-overlay-close .icon{background-image:url(data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxNSIgaGVpZ2h0PSIxNSIgZmlsbD0ibm9uZSI+PHBhdGggZmlsbD0iI2ZmZiIgZmlsbC1ydWxlPSJldmVub2RkIiBkPSJNMTIuODU0IDIuODU0YS41LjUgMCAwIDAtLjcwOC0uNzA4TDcuNSA2Ljc5MyAyLjg1NCAyLjE0NmEuNS41IDAgMSAwLS43MDguNzA4TDYuNzkzIDcuNWwtNC42NDcgNC42NDZhLjUuNSAwIDAgMCAuNzA4LjcwOEw3LjUgOC4yMDdsNC42NDYgNC42NDdhLjUuNSAwIDAgMCAuNzA4LS43MDhMOC4yMDcgNy41bDQuNjQ3LTQuNjQ2WiIgY2xpcC1ydWxlPSJldmVub2RkIi8+PC9zdmc+)}.r-overlay-external .icon{background-image:url(data:image/svg+xml;base64,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)}.r-overlay-content{position:relative;display:grid;place-items:center;border-radius:6px;overflow:hidden;flex-grow:1;background-color:#141414cc;animation:scale-up .5s cubic-bezier(.26,.86,.44,.985)}.r-overlay-spinner{position:absolute;display:block;top:50%;left:50%;width:32px;height:32px;margin:-16px 0 0 -16px;z-index:10;background-image:url(data:image/gif;base64,R0lGODlhIAAgAPMAAJmZmf%2F%2F%2F6%2Bvr8nJybW1tcDAwOjo6Nvb26ioqKOjo7Ozs%2FLy8vz8%2FAAAAAAAAAAAACH%2FC05FVFNDQVBFMi4wAwEAAAAh%2FhpDcmVhdGVkIHdpdGggYWpheGxvYWQuaW5mbwAh%2BQQJCgAAACwAAAAAIAAgAAAE5xDISWlhperN52JLhSSdRgwVo1ICQZRUsiwHpTJT4iowNS8vyW2icCF6k8HMMBkCEDskxTBDAZwuAkkqIfxIQyhBQBFvAQSDITM5VDW6XNE4KagNh6Bgwe60smQUB3d4Rz1ZBApnFASDd0hihh12BkE9kjAJVlycXIg7CQIFA6SlnJ87paqbSKiKoqusnbMdmDC2tXQlkUhziYtyWTxIfy6BE8WJt5YJvpJivxNaGmLHT0VnOgSYf0dZXS7APdpB309RnHOG5gDqXGLDaC457D1zZ%2FV%2FnmOM82XiHRLYKhKP1oZmADdEAAAh%2BQQJCgAAACwAAAAAIAAgAAAE6hDISWlZpOrNp1lGNRSdRpDUolIGw5RUYhhHukqFu8DsrEyqnWThGvAmhVlteBvojpTDDBUEIFwMFBRAmBkSgOrBFZogCASwBDEY%2FCZSg7GSE0gSCjQBMVG023xWBhklAnoEdhQEfyNqMIcKjhRsjEdnezB%2BA4k8gTwJhFuiW4dokXiloUepBAp5qaKpp6%2BHo7aWW54wl7obvEe0kRuoplCGepwSx2jJvqHEmGt6whJpGpfJCHmOoNHKaHx61WiSR92E4lbFoq%2BB6QDtuetcaBPnW6%2BO7wDHpIiK9SaVK5GgV543tzjgGcghAgAh%2BQQJCgAAACwAAAAAIAAgAAAE7hDISSkxpOrN5zFHNWRdhSiVoVLHspRUMoyUakyEe8PTPCATW9A14E0UvuAKMNAZKYUZCiBMuBakSQKG8G2FzUWox2AUtAQFcBKlVQoLgQReZhQlCIJesQXI5B0CBnUMOxMCenoCfTCEWBsJColTMANldx15BGs8B5wlCZ9Po6OJkwmRpnqkqnuSrayqfKmqpLajoiW5HJq7FL1Gr2mMMcKUMIiJgIemy7xZtJsTmsM4xHiKv5KMCXqfyUCJEonXPN2rAOIAmsfB3uPoAK%2B%2BG%2Bw48edZPK%2BM6hLJpQg484enXIdQFSS1u6UhksENEQAAIfkECQoAAAAsAAAAACAAIAAABOcQyEmpGKLqzWcZRVUQnZYg1aBSh2GUVEIQ2aQOE%2BG%2BcD4ntpWkZQj1JIiZIogDFFyHI0UxQwFugMSOFIPJftfVAEoZLBbcLEFhlQiqGp1Vd140AUklUN3eCA51C1EWMzMCezCBBmkxVIVHBWd3HHl9JQOIJSdSnJ0TDKChCwUJjoWMPaGqDKannasMo6WnM562R5YluZRwur0wpgqZE7NKUm%2BFNRPIhjBJxKZteWuIBMN4zRMIVIhffcgojwCF117i4nlLnY5ztRLsnOk%2BaV%2BoJY7V7m76PdkS4trKcdg0Zc0tTcKkRAAAIfkECQoAAAAsAAAAACAAIAAABO4QyEkpKqjqzScpRaVkXZWQEximw1BSCUEIlDohrft6cpKCk5xid5MNJTaAIkekKGQkWyKHkvhKsR7ARmitkAYDYRIbUQRQjWBwJRzChi9CRlBcY1UN4g0%2FVNB0AlcvcAYHRyZPdEQFYV8ccwR5HWxEJ02YmRMLnJ1xCYp0Y5idpQuhopmmC2KgojKasUQDk5BNAwwMOh2RtRq5uQuPZKGIJQIGwAwGf6I0JXMpC8C7kXWDBINFMxS4DKMAWVWAGYsAdNqW5uaRxkSKJOZKaU3tPOBZ4DuK2LATgJhkPJMgTwKCdFjyPHEnKxFCDhEAACH5BAkKAAAALAAAAAAgACAAAATzEMhJaVKp6s2nIkolIJ2WkBShpkVRWqqQrhLSEu9MZJKK9y1ZrqYK9WiClmvoUaF8gIQSNeF1Er4MNFn4SRSDARWroAIETg1iVwuHjYB1kYc1mwruwXKC9gmsJXliGxc%2BXiUCby9ydh1sOSdMkpMTBpaXBzsfhoc5l58Gm5yToAaZhaOUqjkDgCWNHAULCwOLaTmzswadEqggQwgHuQsHIoZCHQMMQgQGubVEcxOPFAcMDAYUA85eWARmfSRQCdcMe0zeP1AAygwLlJtPNAAL19DARdPzBOWSm1brJBi45soRAWQAAkrQIykShQ9wVhHCwCQCACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiRMDjI0Fd30%2FiI2UA5GSS5UDj2l6NoqgOgN4gksEBgYFf0FDqKgHnyZ9OX8HrgYHdHpcHQULXAS2qKpENRg7eAMLC7kTBaixUYFkKAzWAAnLC7FLVxLWDBLKCwaKTULgEwbLA4hJtOkSBNqITT3xEgfLpBtzE%2FjiuL04RGEBgwWhShRgQExHBAAh%2BQQJCgAAACwAAAAAIAAgAAAE7xDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfZiCqGk5dTESJeaOAlClzsJsqwiJwiqnFrb2nS9kmIcgEsjQydLiIlHehhpejaIjzh9eomSjZR%2BipslWIRLAgMDOR2DOqKogTB9pCUJBagDBXR6XB0EBkIIsaRsGGMMAxoDBgYHTKJiUYEGDAzHC9EACcUGkIgFzgwZ0QsSBcXHiQvOwgDdEwfFs0sDzt4S6BK4xYjkDOzn0unFeBzOBijIm1Dgmg5YFQwsCMjp1oJ8LyIAACH5BAkKAAAALAAAAAAgACAAAATwEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GGl6NoiPOH16iZKNlH6KmyWFOggHhEEvAwwMA0N9GBsEC6amhnVcEwavDAazGwIDaH1ipaYLBUTCGgQDA8NdHz0FpqgTBwsLqAbWAAnIA4FWKdMLGdYGEgraigbT0OITBcg5QwPT4xLrROZL6AuQAPUS7bxLpoWidY0JtxLHKhwwMJBTHgPKdEQAACH5BAkKAAAALAAAAAAgACAAAATrEMhJaVKp6s2nIkqFZF2VIBWhUsJaTokqUCoBq%2BE71SRQeyqUToLA7VxF0JDyIQh%2FMVVPMt1ECZlfcjZJ9mIKoaTl1MRIl5o4CUKXOwmyrCInCKqcWtvadL2SYhyASyNDJ0uIiUd6GAULDJCRiXo1CpGXDJOUjY%2BYip9DhToJA4RBLwMLCwVDfRgbBAaqqoZ1XBMHswsHtxtFaH1iqaoGNgAIxRpbFAgfPQSqpbgGBqUD1wBXeCYp1AYZ19JJOYgH1KwA4UBvQwXUBxPqVD9L3sbp2BNk2xvvFPJd%2BMFCN6HAAIKgNggY0KtEBAAh%2BQQJCgAAACwAAAAAIAAgAAAE6BDISWlSqerNpyJKhWRdlSAVoVLCWk6JKlAqAavhO9UkUHsqlE6CwO1cRdCQ8iEIfzFVTzLdRAmZX3I2SfYIDMaAFdTESJeaEDAIMxYFqrOUaNW4E4ObYcCXaiBVEgULe0NJaxxtYksjh2NLkZISgDgJhHthkpU4mW6blRiYmZOlh4JWkDqILwUGBnE6TYEbCgevr0N1gH4At7gHiRpFaLNrrq8HNgAJA70AWxQIH1%2BvsYMDAzZQPC9VCNkDWUhGkuE5PxJNwiUK4UfLzOlD4WvzAHaoG9nxPi5d%2BjYUqfAhhykOFwJWiAAAIfkECQoAAAAsAAAAACAAIAAABPAQyElpUqnqzaciSoVkXVUMFaFSwlpOCcMYlErAavhOMnNLNo8KsZsMZItJEIDIFSkLGQoQTNhIsFehRww2CQLKF0tYGKYSg%2BygsZIuNqJksKgbfgIGepNo2cIUB3V1B3IvNiBYNQaDSTtfhhx0CwVPI0UJe0%2Bbm4g5VgcGoqOcnjmjqDSdnhgEoamcsZuXO1aWQy8KAwOAuTYYGwi7w5h%2BKr0SJ8MFihpNbx%2B4Erq7BYBuzsdiH1jCAzoSfl0rVirNbRXlBBlLX%2BBP0XJLAPGzTkAuAOqb0WT5AH7OcdCm5B8TgRwSRKIHQtaLCwg1RAAAOwAAAAAAAAAAAA%3D%3D);visibility:hidden;opacity:0}.r-overlay-preview .r-overlay-content iframe{width:100%;height:100%;max-width:100%;max-height:100%;border:0;opacity:0;visibility:hidden;transition:all .3s ease}.r-overlay-preview[data-state=loaded] iframe{opacity:1;visibility:visible}.r-overlay-preview .r-overlay-content img,.r-overlay-preview .r-overlay-content video{position:absolute;max-width:100%;max-height:100%;width:100%;height:100%;margin:0;object-fit:scale-down}.r-overlay-preview[data-preview-fit=none] img,.r-overlay-preview[data-preview-fit=none] video{object-fit:none}.r-overlay-preview[data-preview-fit=scale-down] img,.r-overlay-preview[data-preview-fit=scale-down] video{object-fit:scale-down}.r-overlay-preview[data-preview-fit=contain] img,.r-overlay-preview[data-preview-fit=contain] video{object-fit:contain}.r-overlay-preview[data-preview-fit=cover] img,.r-overlay-preview[data-preview-fit=cover] video{object-fit:cover}.r-overlay-preview[data-state=loaded] .r-overlay-content-inner{position:absolute;z-index:-1;left:0;top:45%;width:100%;text-align:center;letter-spacing:normal}.r-overlay-preview .r-overlay-error{font-size:18px;color:orange}.r-overlay-preview .x-frame-error{opacity:0;transition:opacity .3s ease .3s}.r-overlay-preview[data-state=loaded] .x-frame-error{opacity:1}.r-overlay-preview[data-state=loading] .r-overlay-spinner{opacity:.6;visibility:visible}.r-overlay-help .r-overlay-content{overflow:auto}.r-overlay-help-content{max-width:560px;padding:20px 0;margin:auto;text-align:center;letter-spacing:normal}.r-overlay-help-content .title{font-size:20px;margin-top:0}.r-overlay-help .r-overlay-help-content table{border:1px solid #fff;border-collapse:collapse;font-size:16px;text-align:left}.r-overlay-help .r-overlay-help-content table td,.r-overlay-help .r-overlay-help-content table th{width:240px;padding:14px;border:1px solid #fff;vertical-align:middle}.r-overlay-help .r-overlay-help-content table th{padding-top:20px;padding-bottom:20px}.reveal .playback{position:absolute;left:15px;bottom:20px;z-index:30;cursor:pointer;transition:all .4s ease;-webkit-tap-highlight-color:transparent}.reveal.overview .playback{opacity:0;visibility:hidden}.reveal .hljs{min-height:100%}.reveal .hljs table{margin:initial}.reveal .hljs-ln-code,.reveal .hljs-ln-numbers{padding:0;border:0}.reveal .hljs-ln-numbers{opacity:.6;padding-right:.75em;text-align:right;vertical-align:top}.reveal .hljs.has-highlights tr:not(.highlight-line){opacity:.4}.reveal .hljs.has-highlights.fragment{transition:all .2s ease}.reveal .hljs:not(:first-child).fragment{position:absolute;top:0;left:0;width:100%;box-sizing:border-box}.reveal pre[data-auto-animate-target]{overflow:hidden}.reveal pre[data-auto-animate-target] code{height:100%}.reveal .roll{display:inline-block;line-height:1.2;overflow:hidden;vertical-align:top;perspective:400px;perspective-origin:50% 50%}.reveal .roll:hover{background:0 0;text-shadow:none}.reveal .roll span{display:block;position:relative;padding:0 2px;pointer-events:none;transition:all .4s ease;transform-origin:50% 0;transform-style:preserve-3d;backface-visibility:hidden}.reveal .roll:hover span{background:#00000080;transform:translateZ(-45px) rotateX(90deg)}.reveal .roll span:after{content:attr(data-title);display:block;position:absolute;left:0;top:0;padding:0 2px;backface-visibility:hidden;transform-origin:50% 0;transform:translate3d(0,110%,0) rotateX(-90deg)}.reveal aside.notes{display:none}.reveal .speaker-notes{display:none;position:absolute;width:33.3333333333%;height:100%;top:0;left:100%;padding:14px 18px;z-index:1;font-size:18px;line-height:1.4;border:1px solid rgba(0,0,0,.05);color:#222;background-color:#f5f5f5;overflow:auto;box-sizing:border-box;text-align:left;font-family:Helvetica,sans-serif;-webkit-overflow-scrolling:touch}.reveal .speaker-notes .notes-placeholder{color:#ccc;font-style:italic}.reveal .speaker-notes:focus{outline:0}.reveal .speaker-notes:before{content:"Speaker notes";display:block;margin-bottom:10px;opacity:.5}.reveal.show-notes{max-width:75%;overflow:visible}.reveal.show-notes .speaker-notes{display:block}@media screen and (min-width:1600px){.reveal .speaker-notes{font-size:20px}}@media screen and (max-width:1024px){.reveal.show-notes{border-left:0;max-width:none;max-height:70%;max-height:70vh;overflow:visible}.reveal.show-notes .speaker-notes{top:100%;left:0;width:100%;height:30vh;border:0}}@media screen and (max-width:600px){.reveal.show-notes{max-height:60%;max-height:60vh}.reveal.show-notes .speaker-notes{top:100%;height:40vh}.reveal .speaker-notes{font-size:14px}}.reveal .jump-to-slide{position:absolute;top:15px;left:15px;z-index:30;font-size:32px;-webkit-tap-highlight-color:transparent}.reveal .jump-to-slide-input{background:0 0;padding:8px;font-size:inherit;color:currentColor;border:0}.reveal .jump-to-slide-input::placeholder{color:currentColor;opacity:.5}.reveal.has-dark-background .jump-to-slide-input{color:#fff}.reveal.has-light-background .jump-to-slide-input{color:#222}.reveal .jump-to-slide-input:focus{outline:0}.zoomed .reveal *,.zoomed .reveal :after,.zoomed .reveal :before{backface-visibility:visible!important}.zoomed .reveal .controls,.zoomed .reveal .progress{opacity:0}.zoomed .reveal .roll span{background:0 0}.zoomed .reveal .roll span:after{visibility:hidden}.reveal-viewport.loading-scroll-mode{visibility:hidden}.reveal-viewport.reveal-scroll{margin:0 auto;overflow:auto;overflow-x:hidden;overflow-y:auto;z-index:1;--r-scrollbar-width:7px;--r-scrollbar-trigger-size:5px;--r-controls-spacing:8px}@media screen and (max-width:500px){.reveal-viewport.reveal-scroll{--r-scrollbar-width:3px;--r-scrollbar-trigger-size:3px}}.reveal-viewport.reveal-scroll .backgrounds,.reveal-viewport.reveal-scroll .controls,.reveal-viewport.reveal-scroll .playback,.reveal-viewport.reveal-scroll .progress,.reveal-viewport.reveal-scroll .slide-number,.reveal-viewport.reveal-scroll .speaker-notes{display:none!important}.reveal-viewport.reveal-scroll .pause-overlay,.reveal-viewport.reveal-scroll .r-overlay{position:fixed}.reveal-viewport.reveal-scroll .reveal{overflow:visible;touch-action:manipulation}.reveal-viewport.reveal-scroll .slides{position:static;pointer-events:initial;left:auto;top:auto;width:100%!important;margin:0;padding:0;overflow:visible;display:block;perspective:none;perspective-origin:50% 50%}.reveal-viewport.reveal-scroll .scroll-page{position:relative;width:100%;height:calc(var(--page-height) + var(--page-scroll-padding));z-index:1;overflow:visible}.reveal-viewport.reveal-scroll .scroll-page-sticky{position:sticky;height:var(--page-height);top:0}.reveal-viewport.reveal-scroll .scroll-page-content{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.reveal-viewport.reveal-scroll .scroll-page section{visibility:visible!important;display:block!important;position:absolute!important;width:var(--slide-width)!important;height:var(--slide-height)!important;top:50%!important;left:50%!important;opacity:1!important;transform:scale(var(--slide-scale)) translate(-50%,-50%)!important;transform-style:flat!important;transform-origin:0 0!important}.reveal-viewport.reveal-scroll .slide-background{display:block!important;position:absolute;top:0;left:0;width:100%;height:100%;z-index:auto!important;visibility:visible;opacity:1;touch-action:manipulation}.reveal-viewport.reveal-scroll[data-scrollbar=auto]::-webkit-scrollbar,.reveal-viewport.reveal-scroll[data-scrollbar=true]::-webkit-scrollbar{display:none}.reveal-viewport.reveal-scroll[data-scrollbar=auto],.reveal-viewport.reveal-scroll[data-scrollbar=true]{scrollbar-width:none}.reveal-viewport.has-dark-background,.reveal.has-dark-background{--r-overlay-element-bg-color:240,240,240;--r-overlay-element-fg-color:0,0,0}.reveal-viewport.has-light-background,.reveal.has-light-background{--r-overlay-element-bg-color:0,0,0;--r-overlay-element-fg-color:240,240,240}.reveal-viewport.reveal-scroll .scrollbar{position:sticky;top:50%;z-index:20;opacity:0;transition:all .3s ease}.reveal-viewport.reveal-scroll .scrollbar.visible,.reveal-viewport.reveal-scroll .scrollbar:hover{opacity:1}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-inner{position:absolute;width:var(--r-scrollbar-width);height:calc(var(--viewport-height) - var(--r-controls-spacing) * 2);right:var(--r-controls-spacing);top:0;transform:translateY(-50%);border-radius:var(--r-scrollbar-width);z-index:10}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-playhead{position:absolute;width:var(--r-scrollbar-width);height:var(--r-scrollbar-width);top:0;left:0;border-radius:var(--r-scrollbar-width);background-color:rgba(var(--r-overlay-element-bg-color),1);z-index:11;transition:background-color .2s ease}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide{position:absolute;width:100%;background-color:rgba(var(--r-overlay-element-bg-color),.2);box-shadow:0 0 0 1px rgba(var(--r-overlay-element-fg-color),.1);border-radius:var(--r-scrollbar-width);transition:background-color .2s ease}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide:after{content:"";position:absolute;width:200%;height:100%;top:0;left:-50%;background:#0000;z-index:-1}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active,.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide:hover{background-color:rgba(var(--r-overlay-element-bg-color),.4)}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-trigger{position:absolute;width:100%;transition:background-color .2s ease}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active.has-triggers{background-color:rgba(var(--r-overlay-element-bg-color),.4);z-index:10}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active .scrollbar-trigger:after{content:"";position:absolute;width:var(--r-scrollbar-trigger-size);height:var(--r-scrollbar-trigger-size);border-radius:20px;top:50%;left:50%;transform:translate(-50%,-50%);background-color:rgba(var(--r-overlay-element-bg-color),1);transition:transform .2s ease,opacity .2s ease;opacity:.4}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active .scrollbar-trigger.active:after,.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active .scrollbar-trigger.active~.scrollbar-trigger:after{opacity:1}.reveal-viewport.reveal-scroll .scrollbar .scrollbar-slide.active .scrollbar-trigger~.scrollbar-trigger.active:after{transform:translate(calc(var(--r-scrollbar-width) * -2));background-color:rgba(var(--r-overlay-element-bg-color),1)}html.reveal-print *{-webkit-print-color-adjust:exact}html.reveal-print{width:100%;height:100%;overflow:visible}html.reveal-print body{margin:0 auto!important;border:0;padding:0;float:none!important;overflow:visible}html.reveal-print .nestedarrow,html.reveal-print .reveal .controls,html.reveal-print .reveal .playback,html.reveal-print .reveal .progress,html.reveal-print .reveal.overview,html.reveal-print .state-background{display:none!important}html.reveal-print .reveal pre code{overflow:hidden!important}html.reveal-print .reveal{width:auto!important;height:auto!important;overflow:hidden!important}html.reveal-print .reveal .slides{position:static;width:100%!important;height:auto!important;zoom:1!important;pointer-events:initial;left:auto;top:auto;margin:0!important;padding:0!important;overflow:visible;display:block;perspective:none;perspective-origin:50% 50%}html.reveal-print .reveal .slides .pdf-page{position:relative;overflow:hidden;z-index:1;page-break-after:always}html.reveal-print .reveal .slides .pdf-page:last-of-type{page-break-after:avoid}html.reveal-print .reveal .slides section{visibility:visible!important;display:block!important;position:absolute!important;margin:0!important;padding:0!important;box-sizing:border-box!important;min-height:1px;opacity:1!important;transform-style:flat!important;transform:none!important}html.reveal-print .reveal section.stack{position:relative!important;margin:0!important;padding:0!important;page-break-after:avoid!important;height:auto!important;min-height:auto!important}html.reveal-print .reveal img{box-shadow:none}html.reveal-print .reveal .backgrounds{display:none}html.reveal-print .reveal .slide-background{display:block!important;position:absolute;top:0;left:0;width:100%;height:100%;z-index:auto!important}html.reveal-print .reveal.show-notes{max-width:none;max-height:none}html.reveal-print .reveal .speaker-notes-pdf{display:block;width:100%;height:auto;max-height:none;top:auto;right:auto;bottom:auto;left:auto;z-index:100}html.reveal-print .reveal .speaker-notes-pdf[data-layout=separate-page]{position:relative;color:inherit;background-color:transparent;padding:20px;page-break-after:always;border:0}html.reveal-print .reveal .slide-number-pdf{display:block;position:absolute;font-size:14px;visibility:visible}html.reveal-print .aria-status{display:none}@media print{html:not(.print-pdf){overflow:visible;width:auto;height:auto}html:not(.print-pdf) body{margin:0;padding:0;overflow:visible}html:not(.print-pdf) .reveal{background:#fff;font-size:20pt}html:not(.print-pdf) .reveal .backgrounds,html:not(.print-pdf) .reveal .controls,html:not(.print-pdf) .reveal .progress,html:not(.print-pdf) .reveal .slide-number,html:not(.print-pdf) .reveal .state-background{display:none!important}html:not(.print-pdf) .reveal li,html:not(.print-pdf) .reveal p,html:not(.print-pdf) .reveal td{font-size:20pt!important;color:#000}html:not(.print-pdf) .reveal h1,html:not(.print-pdf) .reveal h2,html:not(.print-pdf) .reveal h3,html:not(.print-pdf) .reveal h4,html:not(.print-pdf) .reveal h5,html:not(.print-pdf) .reveal h6{color:#000!important;height:auto;line-height:normal;text-align:left;letter-spacing:normal}html:not(.print-pdf) .reveal h1{font-size:28pt!important}html:not(.print-pdf) .reveal h2{font-size:24pt!important}html:not(.print-pdf) .reveal h3{font-size:22pt!important}html:not(.print-pdf) .reveal h4{font-size:22pt!important;font-variant:small-caps}html:not(.print-pdf) .reveal h5{font-size:21pt!important}html:not(.print-pdf) .reveal h6{font-size:20pt!important;font-style:italic}html:not(.print-pdf) .reveal a:link,html:not(.print-pdf) .reveal a:visited{color:#000!important;font-weight:700;text-decoration:underline}html:not(.print-pdf) .reveal div,html:not(.print-pdf) .reveal ol,html:not(.print-pdf) .reveal p,html:not(.print-pdf) .reveal ul{visibility:visible;position:static;width:auto;height:auto;display:block;overflow:visible;margin:0;text-align:left!important}html:not(.print-pdf) .reveal pre,html:not(.print-pdf) .reveal table{margin-left:0;margin-right:0}html:not(.print-pdf) .reveal pre code{padding:20px}html:not(.print-pdf) .reveal blockquote{margin:20px 0}html:not(.print-pdf) .reveal .slides{position:static!important;width:auto!important;height:auto!important;left:0!important;top:0!important;margin-left:0!important;margin-top:0!important;padding:0!important;zoom:1!important;transform:none!important;overflow:visible!important;display:block!important;text-align:left!important;perspective:none;perspective-origin:50% 50%}html:not(.print-pdf) .reveal .slides section{visibility:visible!important;position:static!important;width:auto!important;height:auto!important;display:block!important;overflow:visible!important;left:0!important;top:0!important;margin-left:0!important;margin-top:0!important;padding:60px 20px!important;z-index:auto!important;opacity:1!important;page-break-after:always!important;transform-style:flat!important;transform:none!important;transition:none!important}html:not(.print-pdf) .reveal .slides section.stack{padding:0!important}html:not(.print-pdf) .reveal .slides section:last-of-type{page-break-after:avoid!important}html:not(.print-pdf) .reveal .slides section .fragment{opacity:1!important;visibility:visible!important;transform:none!important}html:not(.print-pdf) .reveal .r-fit-text{white-space:normal!important}html:not(.print-pdf) .reveal section img{display:block;margin:15px 0;background:#fff;border:1px solid #666;box-shadow:none}html:not(.print-pdf) .reveal section small{font-size:.8em}html:not(.print-pdf) .reveal .hljs{max-height:100%;white-space:pre-wrap;word-wrap:break-word;word-break:break-word;font-size:15pt}html:not(.print-pdf) .reveal .hljs .hljs-ln-numbers{white-space:nowrap}html:not(.print-pdf) .reveal .hljs td{font-size:inherit!important;color:inherit!important}}@font-face{font-family:Source Sans Pro;src:url(/assets/source-sans-pro-regular-C8xAf4ue.eot);src:url(/assets/source-sans-pro-regular-C8xAf4ue.eot?#iefix) format("embedded-opentype"),url(/assets/source-sans-pro-regular-Du6DMqU5.woff) format("woff"),url(/assets/source-sans-pro-regular-DVYRbr7L.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:Source Sans Pro;src:url(/assets/source-sans-pro-italic-BRELHCij.eot);src:url(/assets/source-sans-pro-italic-BRELHCij.eot?#iefix) format("embedded-opentype"),url(/assets/source-sans-pro-italic-Cv9m8hC5.woff) format("woff"),url(/assets/source-sans-pro-italic-CRcsOvyS.ttf) format("truetype");font-weight:400;font-style:italic}@font-face{font-family:Source Sans Pro;src:url(/assets/source-sans-pro-semibold-DJkFd4Pg.eot);src:url(/assets/source-sans-pro-semibold-DJkFd4Pg.eot?#iefix) format("embedded-opentype"),url(/assets/source-sans-pro-semibold-DwriEDPf.woff) format("woff"),url(/assets/source-sans-pro-semibold-J0UDcmCq.ttf) format("truetype");font-weight:600;font-style:normal}@font-face{font-family:Source Sans Pro;src:url(/assets/source-sans-pro-semibolditalic-DCTsihXp.eot);src:url(/assets/source-sans-pro-semibolditalic-DCTsihXp.eot?#iefix) format("embedded-opentype"),url(/assets/source-sans-pro-semibolditalic-DSkHRpvW.woff) format("woff"),url(/assets/source-sans-pro-semibolditalic-BHQoOnJ8.ttf) format("truetype");font-weight:600;font-style:italic}section.has-light-background,section.has-light-background h1,section.has-light-background h2,section.has-light-background h3,section.has-light-background h4,section.has-light-background h5,section.has-light-background h6{color:#222}:root{--r-background-color: #191919;--r-main-font: Source Sans Pro, Helvetica, sans-serif;--r-main-font-size: 42px;--r-main-color: #fff;--r-block-margin: 20px;--r-heading-margin: 0 0 20px 0;--r-heading-font: Source Sans Pro, Helvetica, sans-serif;--r-heading-color: #fff;--r-heading-line-height: 1.2;--r-heading-letter-spacing: normal;--r-heading-text-transform: uppercase;--r-heading-text-shadow: none;--r-heading-font-weight: 600;--r-heading1-text-shadow: none;--r-heading1-size: 2.5em;--r-heading2-size: 1.6em;--r-heading3-size: 1.3em;--r-heading4-size: 1em;--r-code-font: monospace;--r-link-color: #42affa;--r-link-color-dark: rgb(19.8216494845, 155.4536082474, 248.7783505155);--r-link-color-hover: rgb(94.35, 187, 250.75);--r-selection-background-color: rgba(66, 175, 250, .75);--r-selection-color: #fff;--r-overlay-element-bg-color: 240, 240, 240;--r-overlay-element-fg-color: 0, 0, 0}.reveal-viewport{background:#191919;background-color:var(--r-background-color)}.reveal{font-family:var(--r-main-font);font-size:var(--r-main-font-size);font-weight:400;color:var(--r-main-color)}.reveal ::selection{color:var(--r-selection-color);background:var(--r-selection-background-color);text-shadow:none}.reveal ::-moz-selection{color:var(--r-selection-color);background:var(--r-selection-background-color);text-shadow:none}.reveal .slides section,.reveal .slides section>section{line-height:1.3;font-weight:inherit}.reveal h1,.reveal h2,.reveal h3,.reveal h4,.reveal h5,.reveal h6{margin:var(--r-heading-margin);color:var(--r-heading-color);font-family:var(--r-heading-font);font-weight:var(--r-heading-font-weight);line-height:var(--r-heading-line-height);letter-spacing:var(--r-heading-letter-spacing);text-transform:var(--r-heading-text-transform);text-shadow:var(--r-heading-text-shadow);word-wrap:break-word}.reveal h1{font-size:var(--r-heading1-size)}.reveal h2{font-size:var(--r-heading2-size)}.reveal h3{font-size:var(--r-heading3-size)}.reveal h4{font-size:var(--r-heading4-size)}.reveal h1{text-shadow:var(--r-heading1-text-shadow)}.reveal p{margin:var(--r-block-margin) 0;line-height:1.3}.reveal h1:last-child,.reveal h2:last-child,.reveal h3:last-child,.reveal h4:last-child,.reveal h5:last-child,.reveal h6:last-child{margin-bottom:0}.reveal img,.reveal video,.reveal iframe{max-width:95%;max-height:95%}.reveal strong,.reveal b{font-weight:700}.reveal em{font-style:italic}.reveal ol,.reveal dl,.reveal ul{display:inline-block;text-align:left;margin:0 0 0 1em}.reveal ol{list-style-type:decimal}.reveal ul{list-style-type:disc}.reveal ul ul{list-style-type:square}.reveal ul ul ul{list-style-type:circle}.reveal ul ul,.reveal ul ol,.reveal ol ol,.reveal ol ul{display:block;margin-left:40px}.reveal dt{font-weight:700}.reveal dd{margin-left:40px}.reveal blockquote{display:block;position:relative;width:70%;margin:var(--r-block-margin) auto;padding:5px;font-style:italic;background:#ffffff0d;box-shadow:0 0 2px #0003}.reveal blockquote p:first-child,.reveal blockquote p:last-child{display:inline-block}.reveal q{font-style:italic}.reveal pre{display:block;position:relative;width:90%;margin:var(--r-block-margin) auto;text-align:left;font-size:.55em;font-family:var(--r-code-font);line-height:1.2em;word-wrap:break-word;box-shadow:0 5px 15px #00000026}.reveal code{font-family:var(--r-code-font);text-transform:none;-moz-tab-size:2;tab-size:2}.reveal pre code{display:block;padding:5px;overflow:auto;max-height:400px;word-wrap:normal}.reveal .code-wrapper{white-space:normal}.reveal .code-wrapper code{white-space:pre}.reveal table{margin:auto;border-collapse:collapse;border-spacing:0}.reveal table th{font-weight:700}.reveal table th,.reveal table td{text-align:left;padding:.2em .5em;border-bottom:1px solid}.reveal table th[align=center],.reveal table td[align=center]{text-align:center}.reveal table th[align=right],.reveal table td[align=right]{text-align:right}.reveal table tbody tr:last-child th,.reveal table tbody tr:last-child td{border-bottom:none}.reveal sup{vertical-align:super;font-size:smaller}.reveal sub{vertical-align:sub;font-size:smaller}.reveal small{display:inline-block;font-size:.6em;line-height:1.2em;vertical-align:top}.reveal small *{vertical-align:top}.reveal img{margin:var(--r-block-margin) 0}.reveal a{color:var(--r-link-color);text-decoration:none;transition:color .15s ease}.reveal a:hover{color:var(--r-link-color-hover);text-shadow:none;border:none}.reveal .roll span:after{color:#fff;background:var(--r-link-color-dark)}.reveal .r-frame{border:4px solid var(--r-main-color);box-shadow:0 0 10px #00000026}.reveal a .r-frame{transition:all .15s linear}.reveal a:hover .r-frame{border-color:var(--r-link-color);box-shadow:0 0 20px #0000008c}.reveal .controls{color:var(--r-link-color)}.reveal .progress{background:#0003;color:var(--r-link-color)}@media print{.backgrounds{background-color:var(--r-background-color)}}