:root{--primary-color: #4f46e5;--primary-hover: #4338ca;--primary-light: #eef2ff;--secondary-color: #1f2937;--background-color: #f8fafc;--surface-color: #ffffff;--text-color: #374151;--text-muted: #6b7280;--heading-color: #111827;--border-color: #e5e7eb;--border-radius: 12px;--success-color: #10b981;--error-color: #ef4444;--warning-color: #f59e0b;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .07), 0 4px 6px -2px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--transition-speed: .3s;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--max-width: 1280px}.dark-mode{--primary-color: #6366f1;--primary-hover: #818cf8;--primary-light: #312e81;--secondary-color: #111827;--background-color: #0f172a;--surface-color: #1e293b;--text-color: #cbd5e1;--text-muted: #94a3b8;--heading-color: #f1f5f9;--border-color: #334155;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .3), 0 2px 4px -1px rgba(0, 0, 0, .2)}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);margin:0;background-color:var(--background-color);color:var(--text-color);line-height:1.7;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-speed) ease,color var(--transition-speed) ease}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:1rem;line-height:1.3;font-weight:700;color:var(--heading-color)}h1{font-size:clamp(2rem,5vw,2.5rem)}h2{font-size:clamp(1.5rem,4vw,2rem)}h3{font-size:clamp(1.25rem,3vw,1.5rem)}a{color:var(--primary-color);text-decoration:none;transition:color var(--transition-speed) ease}a:hover{color:var(--primary-hover)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{display:inline-block;width:1.2em;height:1.2em;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .75s linear infinite;margin-right:.5rem;vertical-align:text-bottom}.table-responsive-wrapper{overflow-x:auto;width:100%;border:1px solid var(--border-color);border-radius:var(--border-radius)}.app-container{display:flex;flex-direction:column;min-height:100vh}main{flex-grow:1;padding:1.5rem;max-width:var(--max-width);margin:0 auto;width:100%}header{background-color:var(--surface-color);box-shadow:var(--shadow-sm);border-bottom:1px solid var(--border-color);position:sticky;top:0;z-index:1000;padding:0 1.5rem;transition:background-color var(--transition-speed) ease}.navbar-container{display:flex;justify-content:space-between;align-items:center;max-width:var(--max-width);margin:0 auto;height:72px;position:relative}.navbar-collapsible-content{display:flex;align-items:center;justify-content:space-between;flex-grow:1;margin-left:2rem}.mobile-menu-icon{display:none;background:transparent;border:none;color:var(--text-color);padding:.5rem;cursor:pointer}.mobile-menu-icon svg{width:28px;height:28px}footer{background-color:var(--secondary-color);color:#9ca3af;padding:2.5rem 1.5rem;margin-top:3rem}.footer-content{max-width:var(--max-width);margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem}.footer-logo{display:flex;align-items:center;gap:.75rem;font-weight:500;color:#fff}.footer-logo img{height:32px}button,input[type=submit]{font-family:inherit;font-size:1rem;border-radius:var(--border-radius);border:none;padding:.75rem 1.5rem;transition:all var(--transition-speed) ease-in-out;cursor:pointer;background:linear-gradient(145deg,var(--primary-color),#6d28d9);color:#fff;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;box-shadow:var(--shadow-sm)}button:hover:not(:disabled){background:linear-gradient(145deg,var(--primary-hover),#5b21b6);transform:translateY(-2px);box-shadow:var(--shadow-md)}button:disabled{opacity:.5;cursor:not-allowed}.back-button,.export-buttons button{background:transparent;border:1px solid var(--border-color);color:var(--text-color);box-shadow:var(--shadow-sm)}.back-button:hover,.export-buttons button:hover{background-color:var(--background-color);border-color:#d1d5db;transform:translateY(-2px);box-shadow:var(--shadow-md)}input,select,textarea{font-family:inherit;font-size:1rem;border-radius:var(--border-radius);border:1px solid var(--border-color);padding:.75rem 1rem;transition:all var(--transition-speed) ease;width:100%;background-color:var(--surface-color);color:var(--text-color)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #4f46e526}label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--heading-color)}.control-group,.form-group{margin-bottom:1.5rem}.status-message{padding:1rem;border-radius:var(--border-radius);margin:1rem 0;text-align:center;font-weight:500;border:1px solid transparent}.status-message.error{background-color:#fee2e280;color:#b91c1c;border-color:#fca5a5}.dark-mode .status-message.error{background-color:#7f1d1d4d;color:#fca5a5;border-color:#7f1d1d}.status-message.success{background-color:#d1fae580;color:#065f46;border-color:#6ee7b7}.dark-mode .status-message.success{background-color:#064e3b4d;color:#6ee7b7;border-color:#064e3b}.mcq-card,.clinical-case-card,.resource-card,.calculator-card,.simulation-results-view .results-summary-card,.simulation-results-view .analysis-card,.simulation-results-view .leaderboard-card,.post-list-item,.post-detail-view,.reply-item,.dx-helper-response,.profile-card,.ai-tutor-module{background-color:var(--surface-color);border-radius:var(--border-radius);padding:clamp(1.5rem,3vw,2rem);margin-bottom:1.5rem;box-shadow:var(--shadow-md);transition:all var(--transition-speed) ease-in-out;border:1px solid transparent}.dark-mode .mcq-card,.dark-mode .resource-card,.dark-mode .ai-tutor-module{border-color:var(--border-color)}.post-list-item:hover,.resource-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}table{width:100%;border-collapse:collapse}th,td{padding:1rem;text-align:left;border-bottom:1px solid var(--border-color)}th{font-weight:600;background-color:var(--background-color);color:var(--heading-color);font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background-color:var(--primary-light)}.dark-mode tbody tr:hover{background-color:#312e814d}.navbar-logo{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:var(--heading-color);font-weight:600;font-size:1.25rem}.navbar-logo img{height:40px}.nav-links{display:flex;align-items:center;gap:.5rem}.nav-links button,.dropdown>button{background:none;border:none;color:var(--text-muted);font-weight:500;padding:.6rem 1rem;border-radius:var(--border-radius);transition:all var(--transition-speed) ease}.nav-links button:hover,.dropdown>button:hover{color:var(--primary-color);background-color:var(--primary-light)}.nav-links button.active{color:var(--primary-color);background-color:var(--primary-light);font-weight:600}.dark-mode .nav-links button:hover,.dark-mode .dropdown>button:hover,.dark-mode .nav-links button.active{background-color:#312e814d}.dropdown{position:relative;display:inline-block}.dropdown-content{display:none;position:absolute;background-color:var(--surface-color);min-width:240px;box-shadow:var(--shadow-lg);z-index:1001;border-radius:var(--border-radius);overflow:hidden;right:0;margin-top:.75rem;border:1px solid var(--border-color);padding:.5rem 0}.dropdown-content button{width:100%;text-align:left;border-radius:0;padding:.75rem 1.25rem;color:var(--text-color);font-weight:500}.dropdown-content button:hover{color:var(--primary-color);background-color:var(--primary-light)}.dropdown:hover .dropdown-content{display:block}.header-right{display:flex;align-items:center;gap:1rem}.auth-section{display:flex;align-items:center;justify-content:flex-end}.user-profile{display:flex;align-items:center;gap:.75rem}.user-profile-picture{width:36px;height:36px;border-radius:50%;object-fit:cover}.user-profile-name{font-weight:500;color:var(--text-color);font-size:.9rem;white-space:nowrap}.login-nav-btn{border:1px solid var(--primary-color)!important;color:var(--primary-color)!important;padding:.5rem 1.2rem!important}.login-nav-btn:hover{background-color:var(--primary-color)!important;color:#fff!important}.auth-container{display:flex;justify-content:center;align-items:center;min-height:70vh}.auth-card{background-color:var(--surface-color);border-radius:var(--border-radius);padding:2.5rem;box-shadow:var(--shadow-lg);width:100%;max-width:450px;border:1px solid var(--border-color)}.auth-card h2{text-align:center;margin-bottom:1.5rem}.auth-desc{text-align:center;color:var(--text-muted);margin-bottom:1.5rem}.auth-btn{width:100%;margin-top:1rem}.auth-separator{display:flex;align-items:center;text-align:center;margin:1.5rem 0;color:var(--text-muted)}.auth-separator:before,.auth-separator:after{content:"";flex:1;border-bottom:1px solid var(--border-color)}.auth-separator span{padding:0 10px}.google-btn-container{min-height:40px;margin-bottom:1.5rem}.auth-footer{margin-top:2rem;text-align:center;font-size:.9rem}.link-btn{background:none;border:none;color:var(--primary-color);padding:0;text-decoration:underline;box-shadow:none;font-size:inherit;display:inline}.link-btn:hover{background:none;color:var(--primary-hover);transform:none;box-shadow:none}.dashboard-layout{display:grid;grid-template-columns:250px 1fr;gap:2rem;min-height:calc(100vh - 72px - 3rem)}.dashboard-sidebar{background-color:var(--surface-color);border-radius:var(--border-radius);padding:1.5rem;border:1px solid var(--border-color);height:fit-content;display:flex;flex-direction:column;gap:2rem}.sidebar-menu{display:flex;flex-direction:column;gap:.5rem}.sidebar-menu button{width:100%;text-align:left;background:transparent;color:var(--text-color);box-shadow:none;justify-content:flex-start;padding:.75rem 1rem}.sidebar-menu button:hover,.sidebar-menu button.active{background-color:var(--primary-light);color:var(--primary-color)}.dark-mode .sidebar-menu button:hover,.dark-mode .sidebar-menu button.active{background-color:#312e814d}.dashboard-main{display:flex;flex-direction:column;gap:1.5rem}.dashboard-content-panel{background-color:var(--surface-color);border-radius:var(--border-radius);padding:2rem;border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.dashboard-subtitle{color:var(--text-muted);margin-bottom:2rem}.dashboard-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem}.stat-card{background-color:var(--background-color);padding:1.5rem;border-radius:var(--border-radius);border:1px solid var(--border-color);text-align:center}.stat-value{font-size:1.25rem;font-weight:600;color:var(--heading-color);margin:.5rem 0 0}.stat-value.active{color:var(--success-color)}.profile-form{display:flex;flex-direction:column;gap:1.5rem;max-width:600px}.profile-avatar-section{display:flex;align-items:center;gap:1.5rem;margin-bottom:1rem}.profile-avatar-preview{width:80px;height:80px;border-radius:50%;object-fit:cover;border:2px solid var(--border-color)}.settings-group{display:flex;flex-direction:column;gap:1.5rem}.setting-item{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid var(--border-color)}.setting-info h3{font-size:1.1rem;margin-bottom:.25rem}.setting-info p{color:var(--text-muted);margin:0;font-size:.9rem}.switch{position:relative;display:inline-block;width:50px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;inset:0;background-color:#ccc;transition:.4s}.slider:before{position:absolute;content:"";height:16px;width:16px;left:4px;bottom:4px;background-color:#fff;transition:.4s}input:checked+.slider{background-color:var(--primary-color)}input:checked+.slider:before{transform:translate(26px)}.slider.round{border-radius:34px}.slider.round:before{border-radius:50%}@media(max-width:768px){.dashboard-layout{grid-template-columns:1fr}.dashboard-sidebar{flex-direction:row;overflow-x:auto;padding:1rem;gap:1rem}.sidebar-menu{flex-direction:row;flex-grow:1}.sidebar-menu button{white-space:nowrap;width:auto}.sidebar-footer{margin-left:auto}}.logout-btn{background-color:#ef44441a;color:var(--error-color);box-shadow:none;width:100%;justify-content:flex-start}.logout-btn:hover{background-color:var(--error-color);color:#fff}.lecturio-hero{position:relative;display:flex;align-items:center;color:#fff;border-radius:var(--border-radius);overflow:hidden;margin-bottom:3rem;padding:3rem 1.5rem;background-image:url(https://i.postimg.cc/C5j8PLRk/pav-vide.png);background-size:cover;background-position:center;min-height:400px}.hero-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(75deg,#1e293be6,#4f46e5b3)}.hero-content{position:relative;max-width:var(--max-width);width:100%;z-index:2}.hero-text h1{font-size:clamp(2rem,5vw,3.75rem);font-weight:800;margin-bottom:1.5rem;line-height:1.2;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.3);max-width:650px}.hero-text p{font-size:clamp(1rem,2.5vw,1.25rem);margin-bottom:2.5rem;opacity:.9;max-width:600px;text-shadow:0 1px 5px rgba(0,0,0,.2)}.cta-button{font-size:1.2rem;padding:1rem 2.5rem;border-radius:50px;font-weight:700;background:#fff;color:var(--primary-color);border:none;box-shadow:var(--shadow-lg)}.cta-button:hover{background:var(--primary-light);transform:translateY(-3px) scale(1.05);box-shadow:var(--shadow-xl)}.features-section{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:3rem}.feature-card{background:var(--surface-color);padding:2rem;text-align:center;border-radius:var(--border-radius);box-shadow:var(--shadow-md);transition:transform var(--transition-speed) ease,box-shadow var(--transition-speed) ease;border:1px solid transparent}.dark-mode .feature-card{border-color:var(--border-color)}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}.feature-icon{color:var(--primary-color);margin-bottom:1rem}.feature-icon svg{width:48px;height:48px;margin:0 auto}.feature-card h3{margin:0;font-size:1.25rem;color:var(--heading-color)}.video-guide-section{text-align:center;background:var(--surface-color);padding:3rem 1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);border:1px solid transparent}.dark-mode .video-guide-section{border-color:var(--border-color)}.video-guide-section h2{margin-bottom:2rem}.video-container{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;max-width:100%;border-radius:var(--border-radius);box-shadow:var(--shadow-lg)}.video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.controls-section{background:var(--surface-color);padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);margin-bottom:2.5rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;align-items:end;border:1px solid transparent}.dark-mode .controls-section{border-color:var(--border-color)}.results-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1.5rem;margin-bottom:1.5rem;padding-bottom:1.5rem;border-bottom:1px solid var(--border-color)}.export-buttons{display:flex;gap:.75rem;flex-wrap:wrap}.quiz-score{background:linear-gradient(135deg,var(--primary-light),#f0f2ff);color:var(--primary-hover);padding:1.5rem;border-radius:var(--border-radius);margin-bottom:2rem;text-align:center;border:1px solid var(--primary-color)}.dark-mode .quiz-score{background:linear-gradient(135deg,#312e81,#1e1b4b);color:#c7d2fe;border-color:#4338ca}.options{list-style:none;padding:0;margin:1.5rem 0;display:flex;flex-direction:column;gap:.75rem}.option-item{border:1px solid var(--border-color);padding:1rem 1.25rem;border-radius:var(--border-radius);cursor:pointer;transition:all var(--transition-speed) ease;display:flex;gap:1rem;align-items:center}.option-item:hover{border-color:var(--primary-color);background-color:var(--primary-light);transform:scale(1.02)}.dark-mode .option-item:hover{background-color:#312e814d}.option-item.selected-option{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);box-shadow:0 0 10px #4f46e54d}.option-item.disabled-option{cursor:not-allowed;opacity:.9}.option-item.correct-answer-disclosed{background-color:#d1fae5;border-color:var(--success-color);color:#065f46;font-weight:500}.dark-mode .option-item.correct-answer-disclosed{background-color:#064e3b80;color:#6ee7b7;border-color:#064e3b}.option-item.incorrect-selection-disclosed{background-color:#fee2e2;border-color:var(--error-color);color:#991b1b;font-weight:500}.dark-mode .option-item.incorrect-selection-disclosed{background-color:#7f1d1d80;color:#fca5a5;border-color:#7f1d1d}.answer-section{background-color:var(--background-color);padding:1.5rem;border-radius:var(--border-radius);margin-top:1.5rem;border-left:5px solid var(--primary-color)}.quiz-navigation{display:flex;justify-content:space-between;align-items:center;margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border-color)}.question-text{font-size:1.1rem;line-height:1.6;margin:1rem 0}.profile-view{max-width:1000px;margin:0 auto}.profile-header{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-bottom:2.5rem;text-align:center}.profile-picture-large{width:120px;height:120px;border-radius:50%;object-fit:cover;box-shadow:var(--shadow-lg);border:4px solid var(--surface-color)}.profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.profile-card.full-width{grid-column:1 / -1}.profile-card h3,.profile-card h4{margin-bottom:1.5rem;color:var(--heading-color)}.overall-accuracy{font-size:1.2rem;font-weight:600;margin-bottom:1.5rem;text-align:center;padding:1rem;background-color:var(--primary-light);border-radius:var(--border-radius);color:var(--primary-color)}.dark-mode .overall-accuracy{background-color:#312e814d;color:#c7d2fe}.subject-rankings{display:flex;justify-content:space-around;gap:1rem}.subject-rankings h4{font-size:1rem;border-bottom:2px solid var(--border-color);padding-bottom:.5rem;margin-bottom:1rem}.subject-rankings ul{list-style:none;padding:0;margin:0}.subject-rankings li{padding:.25rem 0}.strongest li{color:var(--success-color)}.weakest li{color:var(--error-color)}.profile-resources.resources-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.profile-resources .resource-card{margin:0;padding:1rem}.profile-resources .resource-card h4{font-size:1rem;margin-bottom:1rem}.temas-module{background:var(--surface-color);padding:2rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);border:1px solid transparent}.dark-mode .temas-module{border-color:var(--border-color)}.temas-container{display:grid;grid-template-columns:320px 1fr;gap:2rem;margin-top:2rem}.temas-materia-list{display:flex;flex-direction:column;gap:.5rem;max-height:75vh;overflow-y:auto;border-right:1px solid var(--border-color);padding-right:2rem}.temas-materia-item{width:100%;text-align:left;background-color:transparent;border:none;color:var(--text-color);padding:.8rem 1rem;display:flex;justify-content:space-between;align-items:center;border-radius:var(--border-radius)}.temas-materia-item:hover{background-color:var(--background-color)}.temas-materia-item.active{background-color:var(--primary-color);color:#fff;font-weight:600;box-shadow:var(--shadow-md)}.temas-materia-item .materia-count{font-size:.8rem;padding:.2rem .5rem;border-radius:20px;background-color:#0000000d;color:var(--text-muted)}.dark-mode .temas-materia-item .materia-count{background-color:#ffffff1a}.temas-materia-item.active .materia-count{background-color:#fff3;color:#fff}.temas-detail-panel .prompt{text-align:center;color:var(--text-muted);padding:3rem;background-color:var(--background-color);border-radius:var(--border-radius)}.tema-detail-view .tema-section{margin-bottom:2.5rem}.topic-list-container{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;margin-top:1.5rem}.topic-list-item-button{background-color:var(--surface-color);border:1px solid var(--border-color);color:var(--text-color);font-weight:500}.contact-module{background:var(--surface-color);padding:2.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);max-width:1100px;margin:2rem auto;border:1px solid transparent}.dark-mode .contact-module{border-color:var(--border-color)}.contact-module h2{text-align:center;margin-bottom:3rem}.contact-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:3rem;align-items:flex-start}.contact-description{color:var(--text-muted);margin-bottom:2rem;line-height:1.7}.contact-card{display:flex;align-items:center;gap:1.5rem;padding:1.25rem;border:1px solid transparent;border-radius:var(--border-radius);transition:all var(--transition-speed) ease;text-decoration:none;color:inherit;background-color:var(--background-color);margin-bottom:1rem}.contact-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--primary-light);background-color:var(--surface-color)}.contact-card-icon{flex-shrink:0;width:48px;height:48px;background-color:var(--primary-light);color:var(--primary-color);border-radius:50%;display:flex;align-items:center;justify-content:center}.dark-mode .contact-card-icon{background-color:#312e8180}.contact-card-icon svg{width:24px;height:24px}.contact-card-text h4{margin:0 0 .25rem;font-weight:600;font-size:1rem;color:var(--heading-color)}.suggestion-form{padding:2.5rem;border:1px solid var(--border-color);border-radius:var(--border-radius);background-color:var(--surface-color)}.star-rating{display:flex;gap:.5rem}.star-rating-svg{width:28px;height:28px;cursor:pointer;color:var(--border-color);transition:all .2s ease}.star-rating-svg:hover{transform:scale(1.2);color:var(--warning-color)}.star-rating-svg.filled{color:var(--warning-color)}.ai-tutor-module{max-width:800px;margin:2rem auto;background-color:var(--surface-color);padding:1.5rem;border-radius:var(--border-radius);box-shadow:var(--shadow-md);display:flex;flex-direction:column;height:80vh;border:1px solid transparent}.dark-mode .ai-tutor-module{border-color:var(--border-color)}.chat-messages-container{flex-grow:1;overflow-y:auto;padding:1rem;background-color:var(--background-color);border-radius:var(--border-radius);margin-bottom:1rem;display:flex;flex-direction:column;gap:1rem}.chat-message{padding:.8rem 1.2rem;border-radius:18px;max-width:80%;line-height:1.6;word-wrap:break-word}.chat-message.user-message{background-color:var(--primary-color);color:#fff;align-self:flex-end;border-bottom-right-radius:4px}.chat-message.tutor-message{background-color:#e5e7eb;color:var(--heading-color);align-self:flex-start;border-bottom-left-radius:4px}.dark-mode .chat-message.tutor-message{background-color:#334155;color:#f1f5f9}.chat-message.tutor-message .spinner{color:var(--primary-color)}.chat-input-form{display:flex;gap:.75rem;border-top:1px solid var(--border-color);padding-top:1rem}.chat-input-form button{width:48px;height:48px;padding:.75rem;border-radius:50%}.chat-input-form button svg{width:24px;height:24px}.support-us-fab{position:fixed;bottom:20px;right:20px;z-index:1001;border-radius:25px;padding:.75rem 1.25rem;font-weight:600}@media(max-width:1024px){:root{--max-width: 1024px}body{font-size:15px}main{padding:1rem}.app-container,.container,.footer-content{padding-left:1rem;padding-right:1rem}button,input[type=submit],.login-nav-btn{padding:.7rem 1.1rem;min-height:44px;font-size:.95rem}html,body,#__next{overflow-x:hidden}}@media(min-width:769px)and (max-width:1024px){h1{font-size:clamp(1.8rem,4.2vw,2.25rem)}h2{font-size:clamp(1.4rem,3.6vw,1.75rem)}.navbar-container{height:64px;padding:0 1rem}.navbar-logo img{height:36px}.lecturio-hero{min-height:320px;padding:2rem 1rem}.hero-text h1{max-width:520px;font-size:clamp(1.8rem,4.4vw,3rem)}.dashboard-layout{grid-template-columns:220px 1fr;gap:1rem}.dashboard-sidebar{padding:1rem}.temas-container{grid-template-columns:280px 1fr;gap:1rem}.features-section{gap:1.25rem}.feature-card{padding:1.5rem}}@media(max-width:768px){:root{--max-width: 100%}body{font-size:15px}main{padding:.75rem}.navbar-container{height:64px;padding:0 .75rem;gap:.5rem;justify-content:space-between}.navbar-logo{font-size:1.05rem}.navbar-logo img{height:34px}.mobile-menu-icon{display:block}.navbar-collapsible-content{display:none;position:absolute;top:100%;left:0;width:100%;background-color:var(--surface-color);flex-direction:column;align-items:flex-start;padding:1rem;border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-md);gap:1rem;margin-left:0;max-height:85vh;overflow-y:auto}.navbar-collapsible-content.open{display:flex}.nav-links{flex-direction:column;width:100%;align-items:stretch;gap:.5rem;overflow-x:visible;padding:0}.nav-links button{text-align:left;padding:.75rem;width:100%}.header-right{width:100%;justify-content:space-between;flex-direction:row;padding-top:1rem;border-top:1px solid var(--border-color)}.dropdown{width:100%}.dropdown>button{width:100%;text-align:left;padding:.75rem}.dropdown-content{position:static;width:100%;box-shadow:none;border:none;padding-left:1rem;margin-top:0;background-color:var(--background-color)}.lecturio-hero{min-height:260px;padding:1.75rem .9rem;background-position:50% 35%}.hero-text h1{font-size:clamp(1.35rem,6vw,2rem);max-width:100%}.hero-text p{font-size:.95rem;max-width:100%;margin-bottom:1.25rem}.cta-button{padding:.8rem 1.6rem;font-size:1rem}.features-section{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem}.feature-card{padding:1.25rem}.video-container{padding-bottom:56.25%}.dashboard-layout{grid-template-columns:1fr}.dashboard-sidebar{order:-1;display:flex;flex-direction:row;gap:.5rem;overflow-x:auto;padding:.75rem;align-items:center;border-radius:10px}.sidebar-menu{flex-direction:row;gap:.5rem}.sidebar-menu button{white-space:nowrap;padding:.5rem .8rem;min-width:auto}.dashboard-main{padding-top:.5rem}.mcq-card,.resource-card,.post-detail-view,.profile-card,.ai-tutor-module{padding:1rem}.options{gap:.5rem}.option-item{padding:.9rem 1rem;font-size:.95rem}.option-item .option-meta{display:none}.temas-container{display:block}.temas-materia-list{max-height:220px;overflow-y:auto;padding-right:.5rem}.temas-detail-panel{margin-top:1rem}.profile-grid{grid-template-columns:1fr}.table-responsive-wrapper table,.table-responsive-wrapper thead{display:block;width:100%}.table-responsive-wrapper tbody{display:block;width:100%;max-height:320px;overflow-y:auto}footer{padding:1.5rem 1rem}.footer-content{flex-direction:column;align-items:flex-start;gap:1rem}.support-us-fab{right:12px;bottom:12px;padding:.6rem 1rem}.ai-tutor-module{height:60vh;padding:1rem}.chat-input-form{gap:.5rem;padding-top:.75rem}.chat-input-form button{width:44px;height:44px}}@media(max-width:420px){.navbar-logo{font-size:1rem}.hero-text h1{font-size:1.25rem;line-height:1.15}.cta-button{padding:.6rem 1rem;font-size:.95rem}.feature-card h3{font-size:1rem}.mcq-card,.resource-card{padding:.85rem}.profile-avatar-preview{width:64px;height:64px}}img,iframe,video{max-width:100%;height:auto;display:block}.break-word{word-break:break-word;word-wrap:break-word}.button-wrap{white-space:normal;text-align:center}:focus{outline:3px solid rgba(79,46,229,.15);outline-offset:2px}