:root{--font:"Nunito", system-ui, sans-serif;--purple:#7c3aed;--purple-light:#ede9fe;--purple-hover:#6d28d9;--yellow:#fbbf24;--yellow-light:#fef9c3;--green:#16a34a;--green-light:#dcfce7;--green-border:#86efac;--red:#dc2626;--red-light:#fee2e2;--red-border:#fca5a5;--bg:#f5f3ff;--card-bg:#fff;--text:#1e1b2e;--text-muted:#6b7280;--border:#e5e7eb;--shadow:0 4px 16px #7c3aed1a}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-size:18px;line-height:1.6}.app{min-height:100vh}.app-header{background:linear-gradient(135deg, var(--purple) 0%, #a855f7 100%);color:#fff;text-align:center;padding:32px 24px 28px}.app-title{letter-spacing:-.5px;margin-bottom:4px;font-size:2.2rem;font-weight:800}.app-subtitle{opacity:.85;letter-spacing:.5px;text-transform:uppercase;margin-bottom:16px;font-size:1rem;font-weight:600}.app-meta{background:#ffffff26;border-radius:999px;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;padding:8px 20px;font-size:.9rem;font-weight:600;display:flex}.app-meta-item{white-space:nowrap}.app-meta-divider{opacity:.5}.sticky-bar{z-index:100;border-bottom:2px solid var(--purple-light);background:#fff;flex-direction:column;gap:10px;padding:14px 24px;display:flex;position:sticky;top:0;box-shadow:0 2px 12px #7c3aed14}.progress-wrapper{width:100%}.progress-label{color:var(--text-muted);text-align:center;margin-bottom:6px;font-size:.95rem;font-weight:700}.progress-done{color:var(--green)}.progress-track{background:var(--purple-light);border-radius:999px;width:100%;height:12px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--purple), var(--yellow));border-radius:999px;height:100%;transition:width .35s}.btn-finish{font-family:var(--font);cursor:pointer;border:none;border-radius:999px;width:100%;max-width:480px;margin:0 auto;padding:14px 24px;font-size:1.1rem;font-weight:800;transition:background .2s,transform .1s,box-shadow .2s;display:block}.btn-finish:not(:disabled){background:linear-gradient(135deg, var(--purple), #a855f7);color:#fff;box-shadow:0 4px 14px #7c3aed66}.btn-finish:not(:disabled):hover{background:linear-gradient(135deg, var(--purple-hover), var(--purple));transform:translateY(-2px);box-shadow:0 6px 20px #7c3aed80}.btn-finish:not(:disabled):active{transform:translateY(0)}.btn-finish:disabled{color:#9ca3af;cursor:not-allowed;background:#e5e7eb}.app-main{flex-direction:column;gap:20px;max-width:720px;margin:0 auto;padding:28px 20px 60px;display:flex}.question-card{background:var(--card-bg);box-shadow:var(--shadow);border:2px solid #0000;border-radius:20px;padding:24px;transition:border-color .2s}.question-card.card-correct{border-color:var(--green-border);background:var(--green-light)}.question-card.card-wrong{border-color:var(--red-border);background:var(--red-light)}.question-number{text-transform:uppercase;letter-spacing:1px;color:var(--purple);margin-bottom:8px;font-size:.8rem;font-weight:800}.question-text{color:var(--text);margin-bottom:18px;font-size:1.15rem;font-weight:700;line-height:1.5}.options-grid{flex-direction:column;gap:10px;display:flex}.options-tf{flex-direction:row;gap:14px}.option-btn{font-family:var(--font);border:3px solid var(--border);color:var(--text);cursor:pointer;text-align:left;background:#fff;border-radius:14px;padding:14px 18px;font-size:1rem;font-weight:700;line-height:1.4;transition:border-color .15s,background .15s,transform .1s,box-shadow .15s}.options-tf .option-btn{text-align:center;flex:1;padding:16px;font-size:1.1rem}.option-btn:hover:not(:disabled){border-color:var(--purple);background:var(--purple-light);transform:translateY(-2px);box-shadow:0 4px 12px #7c3aed26}.option-btn:active:not(:disabled){transform:translateY(0)}.option-btn.option-selected{border-color:var(--purple);background:var(--purple-light);color:var(--purple);box-shadow:0 0 0 3px #7c3aed33}.option-btn.option-correct{border-color:var(--green);background:var(--green-light);color:var(--green);cursor:default}.option-btn.option-wrong{border-color:var(--red);background:var(--red-light);color:var(--red);cursor:default}.option-btn.option-idle:disabled{cursor:default;opacity:.55}.question-image{border:2px solid var(--border);border-radius:12px;max-width:100%;margin-bottom:18px;display:block}.correct-answer-hint{color:var(--green);border:2px solid var(--green-border);background:#fff;border-radius:10px;margin-top:12px;padding:10px 14px;font-size:.95rem;font-weight:700}.dialog-overlay{z-index:200;background:#1e1b2e8c;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.dialog-box{text-align:center;background:#fff;border-radius:24px;width:100%;max-width:400px;padding:36px 32px;animation:.2s pop-in;box-shadow:0 20px 60px #00000040}@keyframes pop-in{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}.dialog-emoji{margin-bottom:8px;font-size:3rem}.dialog-title{color:var(--text);margin-bottom:8px;font-size:1.5rem;font-weight:800}.dialog-text{color:var(--text-muted);margin-bottom:24px;font-size:1rem}.dialog-buttons{flex-direction:column;gap:12px;display:flex}.btn-confirm{font-family:var(--font);background:linear-gradient(135deg, var(--purple), #a855f7);color:#fff;cursor:pointer;border:none;border-radius:999px;padding:16px;font-size:1.1rem;font-weight:800;transition:transform .1s,box-shadow .2s;box-shadow:0 4px 14px #7c3aed66}.btn-confirm:hover{transform:translateY(-2px);box-shadow:0 6px 20px #7c3aed80}.btn-cancel{font-family:var(--font);border:2px solid var(--border);color:var(--text-muted);cursor:pointer;background:#fff;border-radius:999px;padding:12px;font-size:1rem;font-weight:700;transition:background .15s}.btn-cancel:hover{background:#f9fafb}.results-container{max-width:680px;margin:0 auto;padding:0 0 60px}.results-header{text-align:center;box-shadow:var(--shadow);background:#fff;border-radius:24px;margin-bottom:24px;padding:32px 24px}.stars-row{letter-spacing:6px;margin-bottom:12px;font-size:3rem;line-height:1}.star-on{color:var(--yellow)}.star-off{color:#e5e7eb}.results-message{color:var(--text);margin-bottom:20px;font-size:1.3rem;font-weight:800;line-height:1.3}.score-badge{color:var(--purple);background:var(--purple-light);border-radius:999px;align-items:center;gap:6px;margin-bottom:16px;padding:12px 32px;font-size:3.5rem;font-weight:800;line-height:1;display:inline-flex}.score-sep{color:var(--text-muted);font-size:2.5rem}.score-details{justify-content:center;gap:24px;font-size:1rem;font-weight:700;display:flex}.detail-correct{color:var(--green)}.detail-wrong{color:var(--red)}.results-list-title{color:var(--text);margin-bottom:14px;font-size:1.1rem;font-weight:800}.results-list{box-shadow:var(--shadow);background:#fff;border-radius:20px;flex-direction:column;gap:14px;margin-bottom:28px;padding:24px;display:flex}.result-item{border:2px solid #0000;border-radius:14px;align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.result-correct{background:var(--green-light);border-color:var(--green-border)}.result-wrong{background:var(--red-light);border-color:var(--red-border)}.result-icon{flex-shrink:0;margin-top:1px;font-size:1.3rem;font-weight:800}.result-correct .result-icon{color:var(--green)}.result-wrong .result-icon{color:var(--red)}.result-content{flex:1}.result-question-text{color:var(--text);margin-bottom:4px;font-size:.95rem;font-weight:600;line-height:1.5}.result-answer-hint{color:var(--green);font-size:.9rem;font-weight:700}.btn-retry{font-family:var(--font);background:linear-gradient(135deg, var(--purple), #a855f7);color:#fff;cursor:pointer;border:none;border-radius:999px;margin:0 auto;padding:16px 40px;font-size:1.15rem;font-weight:800;transition:transform .1s,box-shadow .2s;display:block;box-shadow:0 4px 14px #7c3aed66}.btn-retry:hover{transform:translateY(-2px);box-shadow:0 6px 20px #7c3aed80}.gate-wrapper{background:linear-gradient(135deg, var(--purple) 0%, #a855f7 100%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.gate-card{text-align:center;background:#fff;border-radius:28px;width:100%;max-width:400px;padding:40px 36px;box-shadow:0 20px 60px #00000040}.gate-emoji{margin-bottom:8px;font-size:3rem}.gate-title{color:var(--text);margin-bottom:4px;font-size:2rem;font-weight:800}.gate-subtitle{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:28px;font-size:.85rem;font-weight:700}.gate-instruction{color:var(--text);margin-bottom:14px;font-size:1.05rem;font-weight:700}.gate-form{flex-direction:column;gap:12px;display:flex}.gate-input{font-family:var(--font);border:3px solid var(--border);text-align:center;color:var(--text);letter-spacing:3px;border-radius:14px;outline:none;padding:14px 18px;font-size:1.1rem;font-weight:700;transition:border-color .15s,box-shadow .15s}.gate-input:focus{border-color:var(--purple);box-shadow:0 0 0 3px #7c3aed33}.gate-input-error{border-color:var(--red);box-shadow:0 0 0 3px #dc262626}.gate-error{color:var(--red);font-size:.95rem;font-weight:700}.gate-btn{font-family:var(--font);background:linear-gradient(135deg, var(--purple), #a855f7);color:#fff;cursor:pointer;border:none;border-radius:999px;margin-top:4px;padding:16px;font-size:1.1rem;font-weight:800;transition:transform .1s,box-shadow .2s;box-shadow:0 4px 14px #7c3aed66}.gate-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #7c3aed80}@media (width<=600px){.app-title{font-size:1.7rem}.sticky-bar{padding:12px 16px}.app-main{padding:20px 14px 60px}.question-text{font-size:1.05rem}.option-btn{padding:12px 14px;font-size:.95rem}.score-badge{font-size:2.8rem}.results-list{padding:16px}.result-item{padding:10px 12px}}