@import "https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap";.app{flex-direction:column;min-height:100dvh;display:flex}.app-header{border-bottom:1px solid var(--border);background:var(--bg-card);z-index:10;justify-content:space-between;align-items:center;padding:14px 24px;display:flex;position:sticky;top:0}.app-title{color:var(--primary);letter-spacing:-.3px;font-size:17px;font-weight:700}.app-main{flex-direction:column;flex:1;width:100%;max-width:800px;margin:0 auto;padding:28px 24px;display:flex}.theme-toggle{background:var(--primary-light);border:1.5px solid var(--border);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;line-height:1;transition:all .18s;display:flex}.theme-toggle:hover{border-color:var(--primary)}.theme-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.card{background:var(--bg-card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:12px;padding:28px 32px}@media (width<=600px){.card{padding:20px}.app-main{padding:16px}}.btn{font-family:var(--sans);cursor:pointer;border:1.5px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:11px 24px;font-size:15px;font-weight:600;transition:all .18s;display:inline-flex}.btn:disabled{opacity:.42;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.form-group{text-align:left;margin-bottom:18px}.form-group label{color:var(--text-h);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-group input[type=text],.form-group select{border:1.5px solid var(--border);width:100%;font-size:15px;font-family:var(--sans);background:var(--bg);color:var(--text-h);appearance:none;border-radius:8px;padding:10px 14px;transition:border-color .18s,box-shadow .18s}.form-group select{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;padding-right:36px}.form-group input[type=text]:focus,.form-group select:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px var(--primary-light);outline:none}.checkbox-label{cursor:pointer;color:var(--text-h);align-items:center;gap:10px;font-size:15px;font-weight:500;display:flex!important}.checkbox-label input[type=checkbox]{width:17px;height:17px;accent-color:var(--primary);cursor:pointer;flex-shrink:0}.error{color:var(--danger);margin-top:5px;font-size:13px;display:block}.start-page{flex:1;justify-content:center;align-items:center;display:flex}.start-card{text-align:center;width:100%;max-width:460px}.start-card h1{letter-spacing:-1px;margin-bottom:6px;font-size:36px;font-weight:800}.subtitle{color:var(--text-muted);margin-bottom:28px;font-size:16px}.start-card .btn{width:100%;margin-top:8px;padding:13px 24px}.quiz-page{flex-direction:column;flex:1;gap:14px;display:flex}.quiz-header{justify-content:space-between;align-items:center;display:flex}.quiz-header-right{align-items:center;gap:8px;display:flex}.streak-badge{background:var(--warning-light);color:var(--warning);border-radius:6px;padding:4px 10px;font-size:14px;font-weight:700;animation:.3s streak-pop}@keyframes streak-pop{0%{opacity:.4;transform:scale(.7)}70%{transform:scale(1.15)}to{opacity:1;transform:scale(1)}}.progress{color:var(--text-h);font-size:14px;font-weight:600}.timer{color:var(--primary);background:var(--primary-light);font-variant-numeric:tabular-nums;border-radius:6px;padding:4px 12px;font-size:15px;font-weight:700}.timer-urgent{color:var(--danger);background:var(--danger-light);animation:.6s infinite alternate pulse}@keyframes pulse{0%{transform:scale(1)}to{transform:scale(1.07)}}.timer-bar{background:var(--border);border-radius:2px;height:4px;overflow:hidden}.timer-fill{background:var(--primary);border-radius:2px;height:100%;transition:width 1s linear}.timer-fill-urgent{background:var(--danger)}.question-card{flex-direction:column;gap:18px;display:flex}.question-meta{flex-wrap:wrap;gap:6px;display:flex}.badge{border-radius:5px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-category{background:var(--primary-light);color:var(--primary)}.badge-easy{background:var(--success-light);color:var(--success)}.badge-medium{background:var(--warning-light);color:var(--warning)}.badge-hard{background:var(--danger-light);color:var(--danger)}.question-text{color:var(--text-h);font-size:20px;font-weight:500;line-height:1.5}.options{flex-direction:column;gap:8px;display:flex}.option{border:1.5px solid var(--border);background:var(--bg);color:var(--text-h);font-size:15px;font-family:var(--sans);cursor:pointer;text-align:left;border-radius:9px;align-items:center;gap:12px;width:100%;padding:12px 16px;transition:border-color .15s,background .15s;display:flex}.option:hover:not(:disabled){border-color:var(--primary);background:var(--primary-light)}.option-letter{background:var(--primary-light);width:28px;height:28px;color:var(--primary);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;transition:background .15s,color .15s;display:flex}.option-selected{border-color:var(--primary);background:var(--primary-light)}.option-selected .option-letter{background:var(--primary);color:#fff}.option-correct{border-color:var(--success);background:var(--success-light)}.option-correct .option-letter{background:var(--success);color:#fff}.option-wrong{border-color:var(--danger);background:var(--danger-light)}.option-wrong .option-letter{background:var(--danger);color:#fff}.results-page{flex-direction:column;align-items:center;gap:20px;display:flex}.results-card,.history-card{width:100%}.results-card h1{letter-spacing:-.5px;margin-bottom:4px;font-size:28px;font-weight:800}.results-name{color:var(--text-muted);margin-bottom:24px;font-size:16px}.results-streak{text-align:center;color:var(--text-muted);margin-top:-12px;margin-bottom:20px;font-size:14px}.score-circle{background:var(--primary-light);border:3px solid var(--primary);border-radius:50%;justify-content:center;align-items:center;width:130px;height:130px;margin:0 auto 24px;display:flex}.score-inner{flex-direction:column;align-items:center;display:flex}.score-number{color:var(--primary);font-size:28px;font-weight:800;line-height:1}.score-percent{color:var(--text-muted);margin-top:2px;font-size:13px;font-weight:600}.results-card h2,.history-card h2{color:var(--text-h);margin-bottom:14px;font-size:16px;font-weight:700}.stats-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px;margin-bottom:24px;display:grid}.stat-card{border:1px solid var(--border);background:var(--bg);text-align:center;border-radius:10px;flex-direction:column;align-items:center;gap:3px;padding:12px 8px;display:flex}.stat-category{color:var(--text-muted);text-transform:uppercase;letter-spacing:.4px;font-size:11px;font-weight:600}.stat-score{color:var(--primary);font-size:20px;font-weight:800;line-height:1}.stat-pct{color:var(--text-muted);font-size:12px}.answers-list{flex-direction:column;gap:8px;display:flex}.answer-item{text-align:left;border-left:3px solid;border-radius:9px;padding:12px 16px}.answer-correct{border-color:var(--success);background:var(--success-light)}.answer-wrong{border-color:var(--danger);background:var(--danger-light)}.answer-header{align-items:flex-start;gap:10px;margin-bottom:5px;display:flex}.answer-icon{color:var(--success);flex-shrink:0;font-size:15px;font-weight:800;line-height:1.5}.answer-icon.wrong{color:var(--danger)}.answer-question{color:var(--text-h);font-size:14px;font-weight:600;line-height:1.45}.answer-details{color:var(--text-muted);flex-direction:column;gap:2px;padding-left:25px;font-size:13px;display:flex}.answer-expected{color:var(--success);font-weight:500}.table-wrapper{overflow-x:auto}.history-table{border-collapse:collapse;text-align:left;width:100%;font-size:14px}.history-table th{border-bottom:2px solid var(--border);color:var(--text-h);text-transform:uppercase;letter-spacing:.5px;padding:8px 12px;font-size:12px;font-weight:700}.history-table td{border-bottom:1px solid var(--border);padding:10px 12px}.history-table .current-user{background:var(--primary-light);font-weight:600}.results-page>.btn{width:100%;max-width:300px}.filter-bar{flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px;display:flex}.filter-tabs{gap:4px;display:flex}.filter-btn{border:1.5px solid var(--border);background:var(--bg);color:var(--text-h);font-family:var(--sans);cursor:pointer;border-radius:6px;padding:5px 14px;font-size:13px;font-weight:500;transition:all .15s}.filter-btn:hover{border-color:var(--primary);color:var(--primary)}.filter-btn.active{background:var(--primary);border-color:var(--primary);color:#fff}.filter-select{border:1.5px solid var(--border);background-color:var(--bg);color:var(--text-h);font-family:var(--sans);cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2.5'%3E%3Cpolyline points='6,9 12,15 18,9'%3E%3C/polyline%3E%3C/svg%3E");background-position:right 8px center;background-repeat:no-repeat;border-radius:6px;padding:5px 28px 5px 12px;font-size:13px;font-weight:500;transition:border-color .18s}.filter-select:focus{border-color:var(--border-focus);outline:none}.no-results{text-align:center;color:var(--text-muted);padding:24px;font-style:italic}@media (width<=480px){.start-card h1{font-size:28px}.question-text{font-size:17px}.score-circle{width:110px;height:110px}.score-number{font-size:24px}.btn-confirm{align-self:stretch}}:root,[data-theme=light]{--bg:oklch(97% .007 80);--bg-card:oklch(100% 0 0);--text:oklch(44% .016 265);--text-h:oklch(20% .02 265);--text-muted:oklch(60% .014 265);--border:oklch(90% .008 80);--border-focus:oklch(55% .16 265);--primary:oklch(55% .17 265);--primary-hover:oklch(47% .19 265);--primary-light:oklch(94% .04 265);--success:oklch(52% .14 145);--success-light:oklch(95% .04 145);--danger:oklch(54% .18 25);--danger-light:oklch(96% .03 25);--warning:oklch(62% .16 70);--warning-light:oklch(95% .05 70);--shadow:0 1px 3px oklch(30% .02 265/.08), 0 1px 2px oklch(30% .02 265/.05);--shadow-lg:0 8px 20px oklch(20% .02 265/.1), 0 2px 6px oklch(20% .02 265/.06);--sans:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif}[data-theme=dark]{--bg:oklch(18% .022 265);--bg-card:oklch(23% .027 265);--text:oklch(70% .016 80);--text-h:oklch(93% .01 80);--text-muted:oklch(52% .018 265);--border:oklch(31% .032 265);--border-focus:oklch(65% .14 265);--primary:oklch(65% .15 265);--primary-hover:oklch(72% .13 265);--primary-light:oklch(28% .06 265);--success:oklch(65% .14 145);--success-light:oklch(24% .07 145);--danger:oklch(65% .16 25);--danger-light:oklch(24% .07 25);--warning:oklch(72% .15 70);--warning-light:oklch(26% .07 70);--shadow:0 1px 4px oklch(5% 0 0/.35);--shadow-lg:0 8px 20px oklch(5% 0 0/.5);--sans:"Plus Jakarta Sans", system-ui, -apple-system, sans-serif}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--sans);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px;line-height:1.6;transition:background-color .3s,color .3s}#root{flex-direction:column;min-height:100dvh;display:flex}h1,h2,h3{color:var(--text-h);font-weight:700;line-height:1.25}