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var(--border-color);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:8px 18px;border-radius:20px}.timer-display{display:flex;align-items:center;gap:7px;font-size:14px;font-weight:500;color:var(--text-secondary);max-width:220px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.progress-bar{width:100%;height:5px;background:var(--bg-gray);border-radius:99px;overflow:hidden;margin-bottom:32px}.progress-fill{height:100%;background:var(--primary-color);border-radius:99px;transition:width .4s cubic-bezier(.4,0,.2,1)}.question-container{background:var(--bg-white);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:20px;box-shadow:var(--card-shadow);padding:36px 36px 28px}.question-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.badge{padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em}.category-badge{background:color-mix(in srgb,var(--primary-color) 12%,transparent);color:var(--primary-color);border:1px solid color-mix(in srgb,var(--primary-color) 25%,transparent)}.type-badge,.difficulty-badge{background:var(--bg-gray);color:var(--text-secondary);border:1px solid var(--border-color)}.difficulty-easy{background:color-mix(in srgb,#10b981 14%,transparent);color:#10b981;border:1px solid color-mix(in srgb,#10b981 28%,transparent)}.difficulty-medium{background:color-mix(in srgb,#f59e0b 14%,transparent);color:#d97706;border:1px solid color-mix(in srgb,#f59e0b 28%,transparent)}.difficulty-hard{background:color-mix(in srgb,#ef4444 14%,transparent);color:#ef4444;border:1px solid color-mix(in srgb,#ef4444 28%,transparent)}.question-text{font-size:21px;font-weight:600;line-height:1.55;color:var(--text-primary);margin-bottom:28px;margin-top:0}.options-grid{display:flex;flex-direction:column;gap:12px;margin-bottom:28px}.option-btn{display:flex;align-items:center;gap:14px;width:100%;padding:14px 18px;border:2px solid var(--border-color);border-radius:14px;background:color-mix(in srgb,var(--bg-gray) 60%,transparent);cursor:pointer;text-align:left;transition:border-color .18s,background .18s,transform .12s;position:relative}.option-btn:hover:not(:disabled){border-color:var(--primary-color);background:color-mix(in srgb,var(--primary-color) 6%,var(--bg-white));transform:translateY(-1px)}.option-btn:disabled{cursor:default}.option-btn.selected{border-color:var(--primary-color);background:color-mix(in srgb,var(--primary-color) 10%,var(--bg-white))}.option-btn.selected .option-label{background:var(--primary-color);color:#fff}.option-btn.correct{border-color:#10b981;background:color-mix(in srgb,#10b981 10%,var(--bg-white))}.option-btn.correct .option-label{background:#10b981;color:#fff}.option-btn.wrong{border-color:#ef4444;background:color-mix(in srgb,#ef4444 10%,var(--bg-white))}.option-btn.wrong .option-label{background:#ef4444;color:#fff}.option-btn.disabled{opacity:.45}.option-label{width:34px;height:34px;border-radius:50%;background:var(--bg-gray);border:1.5px solid var(--border-color);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0;color:var(--text-primary);transition:background .18s,color .18s}.option-text{flex:1;font-size:15px;color:var(--text-primary);line-height:1.45}.result-icon{flex-shrink:0}.result-icon.correct{color:#10b981}.result-icon.wrong{color:#ef4444}.frq-container{margin-bottom:28px}.frq-input{width:100%;padding:14px 16px;border:2px solid var(--input-border, var(--border-color));border-radius:14px;font-size:15px;font-family:inherit;line-height:1.55;resize:vertical;min-height:140px;background:var(--input-bg, var(--bg-white));color:var(--input-text, var(--text-primary));transition:border-color .18s,box-shadow .18s;box-sizing:border-box}.frq-input::placeholder{color:var(--input-placeholder, var(--text-secondary))}.frq-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary-color) 18%,transparent)}.frq-input:disabled{opacity:.7;cursor:not-allowed}.grading-indicator{display:flex;align-items:center;gap:10px;margin-top:12px;color:var(--text-secondary);font-size:14px}.spinner{width:18px;height:18px;border:2px solid var(--border-color);border-top-color:var(--primary-color);border-radius:50%;animation:spin .7s linear infinite;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}.action-bar{display:flex;justify-content:flex-end;margin-bottom:20px}.submit-btn{padding:13px 30px;background:var(--primary-color);color:#fff;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .18s,transform .12s,box-shadow .18s;box-shadow:0 4px 16px color-mix(in srgb,var(--primary-color) 30%,transparent)}.submit-btn:hover:not(:disabled){opacity:.9;transform:translateY(-1px);box-shadow:0 6px 22px color-mix(in srgb,var(--primary-color) 40%,transparent)}.submit-btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}.next-btn{display:flex;align-items:center;gap:8px;padding:13px 30px;background:var(--primary-color);color:#fff;border:none;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .18s,transform .12s,box-shadow .18s;box-shadow:0 4px 16px color-mix(in srgb,var(--primary-color) 30%,transparent)}.next-btn:hover{opacity:.9;transform:translateY(-1px);box-shadow:0 6px 22px color-mix(in srgb,var(--primary-color) 40%,transparent)}.explanation-box{margin-top:4px;padding:20px 22px;border-radius:16px;border:1.5px solid;animation:fadeInUp .25s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.explanation-box.correct{background:color-mix(in srgb,#10b981 10%,var(--bg-white));border-color:color-mix(in srgb,#10b981 35%,transparent)}.explanation-box.wrong{background:color-mix(in srgb,#ef4444 10%,var(--bg-white));border-color:color-mix(in srgb,#ef4444 35%,transparent)}.explanation-box h3{font-size:16px;font-weight:700;margin-bottom:12px}.explanation-box.correct h3{color:#059669}.explanation-box.wrong h3{color:#dc2626}.ai-feedback{font-size:14px;color:var(--text-primary);line-height:1.55;margin-bottom:10px;padding:10px 14px;background:color-mix(in srgb,var(--bg-gray) 70%,transparent);border-radius:10px}.correct-answer{font-size:14px;color:var(--text-primary);line-height:1.55;margin-bottom:8px}.explanation-text{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-top:8px;padding-top:12px;border-top:1px solid var(--border-color)}.back-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--border-color);border-radius:10px;background:var(--bg-white);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--text-primary);cursor:pointer;transition:background .18s,border-color .18s;flex-shrink:0}.back-btn:hover{background:color-mix(in srgb,var(--primary-color) 8%,var(--bg-white));border-color:var(--primary-color)}.practice-test-loading{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}.practice-results{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.results-container{max-width:800px;width:100%;background:var(--bg-white);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:var(--border-color);border-radius:16px;box-shadow:var(--card-shadow);padding:48px;text-align:center}.results-header{margin-bottom:32px}.trophy-icon{color:#fbbf24;margin-bottom:16px}.results-header h1{font-size:32px;margin-bottom:8px}.results-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}.results-stats .stat-card{padding:24px;background:var(--bg-gray);border-radius:8px}.results-stats .stat-card.highlight{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-color-dark) 100%);color:#fff}.results-stats .stat-value{font-size:36px;font-weight:700;margin-bottom:4px}.results-stats .stat-label{font-size:14px;opacity:.8}.stat-grade{font-size:18px;font-weight:600;margin-top:8px}.overall-stats{margin-bottom:32px;text-align:left}.overall-stats h2{font-size:20px;margin-bottom:16px}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.stats-grid .stat-item{padding:16px;background:var(--bg-gray);border-radius:8px;display:flex;flex-direction:column;gap:4px}.stats-grid .stat-label{font-size:12px;color:var(--text-secondary)}.stats-grid .stat-number{font-size:24px;font-weight:700;color:var(--text-primary)}.results-actions{display:flex;gap:12px;justify-content:center}.favorite-event-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;display:flex;align-items:center;transition:color .2s}.favorite-event-btn:hover,.favorite-event-btn.active{color:#ef4444}.event-item.favorited{border-left:4px solid #ef4444}.event-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.favorited-event{display:flex;align-items:center;gap:8px;color:var(--text-primary)}.favorite-icon{color:#ef4444;flex-shrink:0}.event-name-small{font-size:14px;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.more-favorites{margin-top:12px;font-size:12px;color:var(--text-secondary);text-align:center}.favorite-button.active{color:#ef4444}.theme-selector{display:flex;gap:8px;align-items:center;background:var(--bg-gray);padding:6px 12px;border-radius:20px;border:1px solid var(--border-color)}.theme-circle{width:20px;height:20px;border-radius:50%;border:2px solid transparent;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1)}.theme-circle:hover{transform:scale(1.1)}.theme-circle.active{border-color:#fff;box-shadow:0 0 0 2px #fffc,0 2px 4px #0003;transform:scale(1.1)}.theme-blue{background:#3b82f6}.theme-green{background:#10b981}.theme-orange{background:#f97316}.theme-purple{background:#a855f7}.theme-red{background:#ef4444}.theme-teal{background:#14b8a6}.theme-pink{background:#ec4899}.theme-yellow{background:#eab308}.theme-indigo{background:#6366f1}.profile-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px}.theme-settings-card{background:var(--bg-white);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:var(--border-color);padding:16px 24px;border-radius:16px;box-shadow:var(--card-shadow);display:flex;flex-direction:column;gap:12px}.theme-settings-header{display:flex;align-items:center;gap:8px;color:var(--text-primary)}.theme-settings-header h3{font-size:16px;font-weight:600;margin:0}.conflict-block.block-1{background:color-mix(in srgb,var(--primary-color) 10%,transparent);border-left:4px solid var(--primary-color)}.conflict-block.block-2{background:color-mix(in srgb,var(--primary-color) 20%,transparent);border-left:4px solid color-mix(in srgb,var(--primary-color) 80%,black)}.conflict-block.block-3{background:color-mix(in srgb,var(--primary-color) 30%,transparent);border-left:4px solid color-mix(in srgb,var(--primary-color) 60%,black)}.conflict-block.block-4{background:color-mix(in srgb,var(--primary-color) 40%,transparent);border-left:4px solid color-mix(in srgb,var(--primary-color) 40%,black)}