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p{color:var(--c-text-muted);margin-top:6px;font-size:1rem;font-weight:500}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:250px;gap:16px;color:var(--c-text-subtle);font-weight:500}.spinner{width:40px;height:40px;border:3px solid var(--c-border);border-top-color:var(--c-primary);border-radius:50%;animation:spin .8s cubic-bezier(.4,0,.2,1) infinite}@keyframes spin{to{transform:rotate(360deg)}}.card{background-color:var(--c-surface-solid);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:32px;margin-bottom:24px;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.4,0,.2,1)}.card:hover{box-shadow:var(--shadow-md);border-color:#0ea5e933}.exam-card{transition:transform .2s cubic-bezier(.4,0,.2,1),box-shadow .2s cubic-bezier(.4,0,.2,1)}.exam-card:hover{transform:translateY(-4px);border-color:#0ea5e94d;box-shadow:var(--shadow-md)}.exam-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}.exam-card-title{font-size:1.1rem;font-weight:800;color:var(--c-text-main);line-height:1.4}.exam-card-meta{color:var(--c-text-subtle);font-size:.85rem;font-weight:500;margin-top:6px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:20px;margin-bottom:32px}.stat-card{background-color:var(--c-surface-solid);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:24px;display:flex;align-items:center;gap:20px;box-shadow:var(--shadow-sm);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#0ea5e933}.stat-card:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at top 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h2{display:flex;align-items:center;gap:12px;margin-bottom:20px;font-size:1.25rem;font-weight:800;color:var(--c-text-main)}.subject-badge{padding:6px 12px;border-radius:8px;font-size:.85rem;font-weight:800;letter-spacing:.02em;text-transform:uppercase}.subject-badge.math{background:#0ea5e91a;color:var(--c-primary-dark);border:1px solid rgba(14,165,233,.2)}.subject-badge.english{background:#8b5cf61a;color:#6d28d9;border:1px solid rgba(139,92,246,.2)}.results-list{display:flex;flex-direction:column;gap:12px}.result-row{background-color:var(--c-surface-solid);border:1px solid var(--c-border);border-radius:var(--r-md);padding:16px 20px;display:flex;justify-content:space-between;align-items:center;text-decoration:none;transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.result-row:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-primary);opacity:0;transition:opacity .2s 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20px;border-radius:var(--r-md);font-weight:700;font-size:.9rem;cursor:pointer;border:none;transition:all .2s cubic-bezier(.4,0,.2,1);text-decoration:none;letter-spacing:.01em}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none!important;box-shadow:none!important}.btn:active:not(:disabled){transform:scale(.97)}.btn-primary{background:var(--g-primary);color:#fff;box-shadow:var(--shadow-glow-primary)}.btn-primary:hover:not(:disabled){box-shadow:0 10px 25px -5px #0ea5e980;transform:translateY(-2px)}.btn-secondary{background-color:var(--c-surface-solid);color:var(--c-text-muted);border:1px solid var(--c-border);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background-color:#f8fafc;color:var(--c-text-main);border-color:#cbd5e1;transform:translateY(-1px)}.btn-danger{background:var(--g-danger);color:#fff;box-shadow:0 8px 24px -8px #ef444466}.btn-danger:hover:not(:disabled){box-shadow:0 10px 25px -5px 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#0000000f}.exam-timer{font-size:1.2rem;font-weight:800;color:#10b981;font-variant-numeric:tabular-nums}.exam-timer.warning{color:#f59e0b}.exam-timer.danger{color:#ef4444}.timer-bar{height:3px;background-color:#e2e8f0;position:sticky;top:113px;z-index:89}.timer-bar-fill{height:100%;background:linear-gradient(90deg,#10b981,#0ea5e9);transition:width .5s linear}.timer-bar-fill.warning{background:linear-gradient(90deg,#f59e0b,#fbbf24)}.timer-bar-fill.danger{background:linear-gradient(90deg,#ef4444,#f97316)}.question-nav{display:flex;gap:8px;padding:14px 24px;flex-wrap:wrap;background-color:#fff;border-bottom:1px solid #e2e8f0}.question-nav-btn{width:36px;height:36px;border-radius:8px;border:2px solid #e2e8f0;background-color:#f8fafc;color:#64748b;font-weight:600;font-size:.8rem;cursor:pointer;transition:all .15s}.question-nav-btn.answered{background-color:#10b9811f;border-color:#10b981;color:#059669}.question-nav-btn.current{border-color:#0ea5e9;color:#0284c7;background-color:#0ea5e91a}.question-card{max-width:800px;padding:28px 24px;background-color:#fff;border-radius:16px;border:1px solid #e2e8f0;margin:24px auto;box-shadow:0 2px 8px #0000000f}@media (max-width: 860px){.question-card{margin:16px}}.question-number{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:8px;background:#0ea5e91f;color:#0284c7;font-weight:800;font-size:.9rem;margin-bottom:14px}.question-text{color:#0f172a;line-height:1.7}.options-list{display:flex;flex-direction:column;gap:10px;margin-top:20px}.option-item{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:12px;border:2px solid #e2e8f0;background-color:#f8fafc;cursor:pointer;transition:all 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solid var(--c-border);background-color:#f8fafc;color:var(--c-text-main);font-size:.95rem;outline:none;transition:all .2s cubic-bezier(.4,0,.2,1);font-family:Inter,sans-serif}.form-control:focus{border-color:var(--c-primary);background-color:var(--c-surface-solid);box-shadow:0 0 0 4px #0ea5e926}.form-control::placeholder{color:var(--c-text-subtle)}.error-message{color:#ef4444;background-color:#ef444414;border:1px solid rgba(239,68,68,.2);border-radius:var(--r-md);padding:14px 16px;margin-bottom:20px;font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:8px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#0f172a99;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);animation:fadeIn .2s ease-out}.modal-content{background-color:var(--c-surface-solid);border-radius:var(--r-lg);padding:32px;width:100%;max-width:480px;border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow-lg),0 0 0 1px var(--c-border);animation:slideUp .3s cubic-bezier(.16,1,.3,1)}@keyframes slideUp{0%{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-content h3{color:var(--c-text-main);margin-bottom:12px;font-size:1.25rem;font-weight:800}.modal-content p{color:var(--c-text-muted);font-size:.95rem;margin-bottom:24px;line-height:1.5}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:32px;padding-top:20px;border-top:1px solid var(--c-border)}@media (max-width: 768px){.page-container{padding:16px}.stats-grid{grid-template-columns:1fr 1fr;gap:10px}.navbar{padding:0 14px}.navbar-user-name{display:none}.exam-header{padding:10px 14px;gap:8px;flex-wrap:wrap}.question-card{margin:12px;padding:20px 16px}.question-nav{padding:10px 14px;gap:5px}.modal-content{padding:20px}.exam-footer{padding:10px 14px;gap:8px;flex-wrap:wrap}.exam-info-bar{gap:12px;font-size:.8rem}.teacher-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}.card{width:100%}}@media (max-width: 480px){.page-container{padding:12px}.stats-grid{grid-template-columns:1fr;gap:8px}.page-header h1{font-size:1.3rem}.exam-header{padding:8px 12px}.question-card{margin:8px;padding:16px 12px}.question-nav{padding:8px 12px;gap:4px}.question-nav-btn{width:30px;height:30px;font-size:.72rem}.option-item{padding:10px 12px;gap:10px}.exam-footer{padding:8px 12px;flex-direction:column;align-items:stretch}.modal-content{padding:16px}.modal-actions{flex-direction:column}.modal-actions .btn,.card{width:100%}.result-row{flex-direction:column!important;align-items:stretch!important;gap:12px!important;padding:16px!important}.result-row>div{width:100%!important;min-width:0!important;flex:none!important;text-align:left!important}}@media (max-width: 640px){.student-navbar{padding:0 12px}.student-navbar-links{gap:2px}.student-navbar-link span{display:none}}.admin-schedule-grid{display:grid;grid-template-columns:minmax(300px,1fr) 2fr;gap:24px;align-items:start}@media (max-width: 900px){.admin-schedule-grid{grid-template-columns:1fr}}.mobile-menu-btn,.admin-mobile-tab-bar{display:none!important}@media (max-width: 768px){.mobile-menu-btn{display:block!important;background:none;border:none;cursor:pointer;padding:5px}.desktop-nav-links{display:none!important}.mobile-nav-menu{display:flex;flex-direction:column;background:var(--c-surface-solid, #ffffff);position:absolute;top:60px;left:0;right:0;box-shadow:0 10px 15px -3px #0000001a;padding:10px;z-index:1000;border-bottom:2px solid var(--c-primary, #3b82f6)}.mobile-nav-menu button,.mobile-nav-menu a{padding:15px!important;border-bottom:1px solid var(--c-border, #e2e8f0)!important;width:100%;text-align:left;margin:0!important;font-size:1rem!important}.page-container{padding:16px 12px}.admin-table-container,.results-list{overflow-x:auto;-webkit-overflow-scrolling:touch}.stats-grid{grid-template-columns:1fr}.result-row{flex-direction:column;align-items:flex-start;gap:12px}.result-row>div{flex:auto!important;width:100%;display:flex;justify-content:space-between}.result-row-date{margin-top:0}.admin-tab-bar{display:none!important}.admin-mobile-tab-bar{display:flex!important;flex-direction:column;gap:5px;margin-bottom:20px}}