.App{text-align:center}.App-logo{height:40vmin;pointer-events:none}@media (prefers-reduced-motion:no-preference){.App-logo{animation:App-logo-spin 20s linear infinite}}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;min-height:100vh}.App-link{color:#61dafb}@keyframes App-logo-spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.homepage{align-items:center;background:#fff;color:#1e293b;display:flex;flex-direction:column;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;min-height:100vh;padding:3rem 1rem}.hero{margin-bottom:4rem;max-width:800px;text-align:center}.hero h1{-webkit-text-fill-color:#0000;background:linear-gradient(90deg,#2563eb,#3b82f6);-webkit-background-clip:text;font-size:clamp(2.5rem,6vw,3.6rem);font-weight:800}.cards{display:flex;flex-wrap:wrap;gap:2.5rem;justify-content:center;margin-bottom:2.5rem;max-width:1100px;width:100%}.card{background:#fff;border:1px solid #e5e7eb;border-radius:1.25rem;box-shadow:0 10px 25px #00000014;cursor:pointer;max-width:420px;outline:none;padding:2.5rem 2rem;text-align:center;transition:all .3s ease;width:100%}.card:focus-visible,.card:hover{border-color:#bfdbfe;box-shadow:0 20px 45px #3b82f633;transform:translateY(-10px)}.card.active{border:2px solid #3b82f6;box-shadow:0 25px 55px #3b82f640}.icon{color:#3b82f6;font-size:3rem}.card h2,.icon{margin-bottom:1rem}.card h2{font-size:1.9rem;font-weight:700}.card p{color:#475569;font-size:1.05rem;line-height:1.6}.continue-btn{background:#3b82f6;border:none;border-radius:9999px;color:#fff;cursor:pointer;font-size:1.1rem;font-weight:600;margin-top:1rem;padding:1rem 3rem;transition:all .25s ease}.continue-btn:hover:not(:disabled){background:#2563eb;box-shadow:0 12px 25px #3b82f659;transform:translateY(-2px)}.continue-btn:disabled{background:#c7d2fe;cursor:not-allowed}@media (max-width:768px){.cards{align-items:center;flex-direction:column}}.teacher-register-container{align-items:center;background-color:#f5f6fa;display:flex;justify-content:center;min-height:100vh;padding:20px}.teacher-card{background:#fff;border-radius:20px;box-shadow:0 4px 20px #0000001a;display:flex;height:auto;min-height:550px;overflow:hidden;width:900px}.teacher-image{height:100%;width:50%}.teacher-image img{height:100%;object-fit:cover;width:100%}.teacher-form{background:#fff;display:flex;flex-direction:column;justify-content:center;padding:50px 40px;width:50%}.teacher-form h2{color:#222;font-size:1.6rem;font-weight:700;margin-bottom:20px;text-align:center}.name-fields{margin-bottom:0}.name-fields input{margin-bottom:12px;width:100%}input{box-sizing:border-box;transition:all .3s ease}.dropdown-section{margin-bottom:12px}.dropdown-section label{color:#333;display:block;font-size:14px;font-weight:600;margin-bottom:6px}.custom-dropdown{-webkit-appearance:none;appearance:none;background-color:#fff;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;background-size:16px;border:1px solid #ccc;border-radius:8px;cursor:pointer;font-family:inherit;font-size:15px;outline:none;padding:12px;transition:all .3s ease;width:100%}.custom-dropdown:focus{border-color:#007bff;box-shadow:0 0 0 2px #007bff33}.custom-dropdown:hover{border-color:#007bff}.selection-info{margin-top:8px}.info-badge{background:#e3f2fd;border-left:3px solid #007bff;border-radius:20px;color:#007bff;display:inline-block;font-size:12px;padding:6px 12px}.info-badge strong{color:#0056b3;font-weight:700}.password-field{margin-bottom:12px}.password-field input{margin-bottom:0}.btn{font-size:15px;margin-top:8px}.btn:hover:not(:disabled){background-color:#0056b3;transform:translateY(-1px)}.btn:disabled{cursor:not-allowed;opacity:.6}.btn-secondary{background-color:#6c757d;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:14px;font-weight:600;margin-top:8px;padding:12px;transition:.3s ease;width:100%}.btn-secondary:hover{background-color:#5a6268}.otp-section{text-align:center}.otp-info{background:#e3f2fd;border-radius:8px;color:#333;font-size:14px;margin-bottom:20px;padding:12px}.otp-info strong{color:#007bff}p{font-size:14px;margin-top:20px}@media (max-width:900px){.teacher-card{flex-direction:column;height:auto;width:95%}.teacher-image{height:200px;width:100%}.teacher-image img{height:100%;object-fit:cover;width:100%}.teacher-form{border-radius:0 0 20px 20px;padding:30px 25px;width:100%}.name-fields{flex-direction:column;gap:0}}@media (max-width:480px){.teacher-form{padding:25px 20px}.teacher-form h2{font-size:1.4rem}.btn,.btn-secondary,.custom-dropdown,input{font-size:14px;padding:10px}}.student-card{box-shadow:0 4px 20px #0000001a;height:550px;width:900px}.student-form,.student-image{width:50%}.student-form h2{font-size:1.6rem;margin-bottom:20px}.name-fields{display:flex;gap:10px}input{margin-bottom:12px}.password-field{align-items:center;display:flex}.password-field input{padding-right:40px;width:100%}@media (max-width:900px){.student-card{flex-direction:column;height:auto;width:95%}.student-image{display:none}.student-form{border-radius:20px;padding:30px 25px;width:100%}}.student-container{align-items:center;background-color:#f5f6fa;display:flex;justify-content:center;min-height:100vh;padding:20px}.student-card{background:#fff;border-radius:20px;box-shadow:0 6px 25px #0000001f;display:flex;height:500px;overflow:hidden;width:850px}.student-image{height:100%;width:45%}.student-image img{height:100%;object-fit:cover;width:100%}.student-form{background:#fff;display:flex;flex-direction:column;justify-content:center;padding:50px 40px;width:55%}.student-form h2{color:#222;font-size:1.8rem;font-weight:700;margin-bottom:25px;text-align:center}input{border:1px solid #ccc;border-radius:8px;font-size:15px;margin-bottom:15px;outline:none;padding:12px;width:100%}input:focus{border-color:#007bff;box-shadow:0 0 0 2px #007bff33}.password-field{position:relative}.password-toggle{color:#888;cursor:pointer;font-size:18px;position:absolute;right:12px;top:50%;transform:translateY(-50%);transition:color .2s ease}.password-toggle:hover{color:#007bff}.btn{font-weight:600;padding:12px;transition:.3s ease}p{color:#555;margin-top:15px;text-align:center}.forgot-link{color:#007bff;font-size:.9rem;text-decoration:none}.forgot-link:hover{text-decoration:underline}.toggle-link{font-weight:600}@media (max-width:900px){.student-card{flex-direction:column;height:auto;width:95%}.student-image{display:none}.student-form{padding:30px 25px;width:100%}}.auth-container{align-items:center;background:linear-gradient(135deg,#f0f4ff,#e8ecf5);display:flex;font-family:Inter,sans-serif;height:100vh;justify-content:center}.form-card{background:#fff;border-radius:16px;box-shadow:0 8px 24px #00000014;max-width:380px;padding:2.5rem 2rem;transition:all .3s ease;width:100%}.form-card:hover{transform:translateY(-3px)}.form-card h2{color:#222;font-size:1.6rem;font-weight:600;margin-bottom:1.5rem;text-align:center}.form-card form{display:flex;flex-direction:column}.form-card input,.form-card select{border:1px solid #d0d5dd;border-radius:8px;font-size:.95rem;margin-bottom:1rem;padding:.75rem .9rem;transition:border-color .2s ease,box-shadow .2s ease;width:100%}.form-card input:focus,.form-card select:focus{border-color:#007bff;box-shadow:0 0 0 3px #007bff33;outline:none}.btn{background-color:#007bff;border:none;border-radius:8px;color:#fff;cursor:pointer;font-size:1rem;font-weight:500;padding:.8rem;transition:background-color .25s ease,transform .1s ease;width:100%}.btn:hover{background-color:#0056b3;transform:scale(1.02)}.btn.secondary{background-color:#6c757d;margin-top:.6rem}.btn.secondary:hover{background-color:#5a6268}.form-card p{color:#555;font-size:.9rem;margin-top:1rem;text-align:center}.toggle-link{color:#007bff;cursor:pointer;font-weight:500}.toggle-link:hover{text-decoration:underline}.form-card p.message{color:#007bff;font-size:.9rem;margin-top:.5rem;text-align:center}.teacher-dashboard{background:#fff;min-height:100vh;padding:2rem}.dashboard-header{gap:15px}.header-info{flex-wrap:wrap;gap:20px}.logout-button{background:#fff;border:none;border-radius:8px;box-shadow:0 8px 20px #6c63ff40;color:#6c63ff;cursor:pointer;font-weight:600;padding:.6rem 1.4rem}.subject-badge{background:#fff3;border-radius:40px;font-size:.9rem;font-weight:500;padding:6px 14px}.subject-name{font-weight:600}.role-badge{border-radius:40px;font-size:.85rem;font-weight:500;padding:6px 14px}.role-badge.class-teacher{background:#ffc1074d;border:1px solid #ffc10799}.role-badge.subject-teacher{background:#4caf504d;border:1px solid #4caf5099}.section-title{align-items:center;display:flex;flex-wrap:wrap;gap:10px;letter-spacing:.3px}.subject-title{background:linear-gradient(135deg,#6c63ff,#7f75ff);border-radius:20px;color:#fff;font-size:.85rem;font-weight:500;padding:4px 12px}.quick-actions{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));margin-bottom:3rem}.action-card{align-items:center;border-left:6px solid #6c63ff;box-shadow:0 10px 25px #00000014;color:#1e293b;display:flex;flex-direction:column;font-weight:600;gap:.6rem;overflow:hidden;padding:1.8rem;position:relative;text-decoration:none;transition:transform .25s ease,box-shadow .25s ease}.action-card:hover{box-shadow:0 18px 40px #6c63ff40}.action-card:active{transform:translateY(-2px) scale(.98)}.action-card:after{background:linear-gradient(120deg,#0000 30%,#6c63ff14,#0000 70%);content:"";inset:0;opacity:0;position:absolute;transition:opacity .25s ease}.action-card:hover:after{opacity:1}.card-icon{background:#6c63ff1f;border-radius:14px;color:#6c63ff;margin-bottom:10px;padding:14px}.action-subject{background:#6c63ff1a;border-radius:12px;color:#6c63ff;font-size:.7rem;font-weight:500;margin-top:4px;padding:2px 8px}.center-btn{margin-bottom:2.5rem;text-align:center}.toggle-students-btn{background:#6c63ff;border:none;border-radius:999px;box-shadow:0 10px 25px #6c63ff4d;color:#fff;cursor:pointer;font-weight:600;padding:.9rem 2.2rem}.sm-container{background:#fff;border:1px solid #e5e7eb;border-radius:18px;box-shadow:0 12px 30px #00000014;padding:28px}.sm-title{color:#4f46e5;font-size:20px;font-weight:700;margin-bottom:20px}.sm-message{background:#eef2ff;border-radius:10px;margin-bottom:16px;padding:12px}.sm-head,.sm-row{align-items:center;display:grid;grid-template-columns:2fr 3fr 1fr;padding:14px 16px}.sm-head{background:#f1f5f9;border-radius:12px;font-weight:600}.sm-row{border-bottom:1px solid #e5e7eb}.sm-name{font-weight:600}.sm-email{color:#64748b;font-size:14px}.sm-action{display:flex;justify-content:center}.sm-assign{background:#22c55e;border:none;border-radius:10px;box-shadow:0 8px 20px #22c55e59;color:#fff;cursor:pointer;font-weight:600;padding:8px 18px}.sm-empty{color:#64748b;margin-top:12px}@media (max-width:768px){.dashboard-header{flex-direction:column;text-align:center}.header-info,.section-title{justify-content:center}.action-subject{font-size:.65rem}}.create-meeting-wrapper{align-items:center;background:#fff;display:flex;justify-content:center;min-height:100vh}.create-meeting-container{background:#fff;border:1px solid #e5e7eb;border-radius:18px;box-shadow:0 20px 40px #6c63ff26;padding:28px;position:relative;width:420px}.back-arrow{background:#eef2ff;border:none;border-radius:10px;color:#6c63ff;display:flex;justify-content:center;left:16px;padding:8px;top:16px}.back-arrow:hover{background:#e0e7ff}.create-meeting-container h2{color:#1e293b;font-size:22px;font-weight:700;margin-bottom:22px;text-align:center}.create-meeting-container input{border:1px solid #e5e7eb;border-radius:10px;font-size:14px;margin-bottom:14px;padding:12px 14px;width:100%}.create-meeting-container button[type=submit]{background:#6c63ff;border:none;border-radius:12px;box-shadow:0 6px 16px #6c63ff40;color:#fff;cursor:pointer;font-size:14px;font-weight:600;height:46px;transition:transform .2s ease,box-shadow .2s ease;width:100%}.create-meeting-container button[type=submit]:hover{box-shadow:0 12px 25px #6c63ff59;transform:translateY(-2px)}.create-meeting-container button:disabled{cursor:not-allowed;opacity:.7}.success-message{background:#dcfce7;border:1px solid #86efac;border-radius:10px;color:#166534;font-size:14px;font-weight:500;margin-top:14px;padding:12px;text-align:center}.meeting-link-section{background:#f8faff;border:1px solid #e5e7eb;border-radius:14px;margin-top:22px;padding:16px}.meeting-link-section h3{color:#1e293b;font-size:16px;margin-bottom:10px;text-align:center}.link-input{border:1px solid #d1d5db;border-radius:8px;font-size:13px;padding:10px;width:100%}.meeting-link-section .link-actions{display:flex;gap:12px;margin-top:14px}.meeting-link-section .copy-btn{align-items:center;background:#6c63ff;border:none;border-radius:12px;box-shadow:0 6px 16px #6c63ff40;color:#fff;cursor:pointer;display:flex;flex:1 1;font-size:14px;font-weight:600;height:44px;justify-content:center;transition:transform .2s ease,box-shadow .2s ease}.meeting-link-section .copy-btn:hover{box-shadow:0 12px 25px #6c63ff59;transform:translateY(-2px)}.meeting-link-section .start-btn{background:#6c63ff;border:none;border-radius:12px;box-shadow:0 6px 16px #6c63ff40;color:#fff;cursor:pointer;flex:2 1;font-size:14px;font-weight:600;height:44px;transition:transform .2s ease,box-shadow .2s ease}.meeting-link-section .start-btn:hover{box-shadow:0 12px 25px #6c63ff59;transform:translateY(-2px)}.helper-text{color:#64748b;font-size:12px;margin-top:10px;text-align:center}.student-dashboard{background:#f8fafc;min-height:100vh;padding:2rem}.loading-container{align-items:center;color:#6c63ff;display:flex;font-size:1.2rem;justify-content:center;min-height:100vh}.dashboard-header{align-items:center;background:linear-gradient(90deg,#6c63ff,#7f75ff);border-radius:16px;color:#fff;display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;margin-bottom:2.5rem;padding:1.6rem 2rem}.dashboard-header h1{font-size:1.5rem;margin:0}.header-left{gap:1rem}.back-btn{background:#fff3;font-size:.9rem;padding:.5rem 1rem;transition:all .3s}.back-btn:hover{background:#ffffff4d;transform:translateX(-2px)}.header-info{align-items:center;display:flex;gap:1rem}.class-badge{background:#fff3;border-radius:20px;font-size:.9rem;padding:.5rem 1rem}.logout-btn{background:#fff;border:none;border-radius:8px;color:#6c63ff;cursor:pointer;font-weight:600;padding:.6rem 1.4rem;transition:all .3s}.logout-btn:hover{box-shadow:0 4px 12px #0003;transform:translateY(-2px)}.section-title{border-left:4px solid #6c63ff;font-size:1.3rem;font-weight:700;margin-bottom:1.5rem;padding-left:1rem}.subjects-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-bottom:2rem}.subject-card{background:#fff;border:1px solid #e2e8f0;border-radius:20px;box-shadow:0 4px 6px #0000000d;cursor:pointer;padding:2rem;text-align:center;transition:all .3s ease}.subject-card:hover{border-color:#6c63ff;box-shadow:0 20px 30px #6c63ff26;transform:translateY(-8px)}.subject-card h3{color:#1e293b;font-size:1.3rem;margin-bottom:.5rem}.teacher-name{color:#64748b;font-size:.85rem;margin-bottom:1rem}.select-subject-btn{background:linear-gradient(135deg,#6c63ff,#7f75ff);border:none;border-radius:30px;color:#fff;cursor:pointer;font-weight:600;padding:.7rem 1.5rem;transition:all .3s;width:100%}.select-subject-btn:hover{box-shadow:0 4px 12px #6c63ff66;transform:scale(1.02)}.teacher-info-card{align-items:center;background:linear-gradient(135deg,#f8fafc,#f1f5f9);border-left:4px solid #6c63ff;border-radius:20px;display:flex;flex-wrap:wrap;gap:1.5rem;margin-bottom:2rem;padding:1.5rem}.teacher-avatar{align-items:center;background:linear-gradient(135deg,#6c63ff,#7f75ff);border-radius:50%;color:#fff;display:flex;font-size:1.6rem;font-weight:600;height:65px;justify-content:center;width:65px}.teacher-details h3{color:#1e293b;font-size:1.1rem;margin:0 0 .25rem}.teacher-details p{color:#6c63ff;font-size:.85rem;font-weight:500;margin:0}.teacher-email{color:#64748b;display:block;font-size:.75rem;margin-top:.25rem}.actions-grid{grid-gap:1.5rem;display:grid;gap:1.5rem;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin-bottom:2rem}.action-card{background:#fff;border:1px solid #e2e8f0;border-radius:16px;box-shadow:0 4px 6px #0000000d;cursor:pointer;padding:1.5rem;text-align:center;transition:all .3s ease}.action-card:hover{border-color:#6c63ff;box-shadow:0 12px 20px #6c63ff26;transform:translateY(-6px)}.action-card svg{color:#6c63ff;margin-bottom:.75rem}.action-card p{color:#1e293b;font-size:.95rem;font-weight:600;margin:0}.action-card small{color:#64748b;display:block;font-size:.7rem;margin-top:.25rem}@media (max-width:768px){.student-dashboard{padding:1rem}.dashboard-header{flex-direction:column;text-align:center}.header-left{justify-content:center}.actions-grid,.subjects-grid{grid-template-columns:1fr}.teacher-info-card{flex-direction:column;text-align:center}}.join-page{align-items:center;background:#f5f7ff;display:flex;font-family:Arial,Helvetica,sans-serif;height:100vh;justify-content:center}.back-arrow{color:#2563eb;font-size:28px;font-weight:700;left:30px;position:absolute;top:25px;transition:.2s}.back-arrow:hover{color:#1d4ed8}.join-card{background:#fff;border-radius:10px;box-shadow:0 6px 20px #0000001a;padding:40px;text-align:center;width:420px}.join-card h2{margin-bottom:20px}.meeting-title{font-size:18px;font-weight:600}.host{color:#666;margin-bottom:25px}.input-group{margin-bottom:18px;text-align:left}.input-group label{font-size:14px;font-weight:600}.input-group input{border:2px solid #3b82f6;border-radius:6px;font-size:14px;margin-top:6px;outline:none;padding:12px;width:100%}.input-group input:focus{border-color:#1d4ed8;box-shadow:0 0 0 2px #3b82f633}.join-btn{background:#2563eb;border:none;border-radius:6px;cursor:pointer;font-size:15px;margin-top:10px;padding:12px;width:100%}.join-btn:hover{background:#1d4ed8}.message{color:#444;margin-top:15px}.loading{margin-top:100px}*{margin:0;padding:0}.meeting-room{background-color:#1e1f20;color:#fff;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Google Sans,Segoe 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p{color:#78350f!important;font-size:.95rem!important;line-height:1.5!important;margin:0!important}.error-message{background:#fee2e2;border-left:4px solid #ef4444;border-radius:12px;color:#b91c1c;margin-bottom:1rem;padding:1rem}.start-quiz-btn{background:linear-gradient(135deg,#10b981,#059669);border:none;border-radius:16px;color:#fff;cursor:pointer;font-size:1.2rem;font-weight:700;margin-bottom:10px;padding:16px;transition:all .3s ease;width:100%}.start-quiz-btn:hover:not(:disabled){box-shadow:0 10px 20px #10b9814d;transform:translateY(-2px)}.start-quiz-btn:disabled{cursor:not-allowed;opacity:.6}.cancel-btn{background:#e2e8f0;border:none;border-radius:16px;color:#475569;cursor:pointer;font-size:1rem;font-weight:600;padding:14px;transition:all .2s 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