h1[data-astro-cid-f3vy2xao]{margin:.75rem 0 .5rem;font-size:1.75rem;font-weight:700}.subtitle[data-astro-cid-f3vy2xao]{color:#64748b;margin-bottom:1.25rem;font-size:.95rem}.tabs[data-astro-cid-f3vy2xao]{border-bottom:2px solid #e2e8f0;gap:.25rem;margin-bottom:1.5rem;display:flex}.tab[data-astro-cid-f3vy2xao]{color:#64748b;cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;border-radius:4px 4px 0 0;margin-bottom:-2px;padding:.625rem 1.25rem;font-size:.9rem;font-weight:600;transition:color .15s,border-color .15s}.tab[data-astro-cid-f3vy2xao]:hover{color:#1e40af}.tab[data-astro-cid-f3vy2xao].active{color:#1e40af;background:#eff6ff;border-bottom-color:#1e40af}.tab-panel[data-astro-cid-f3vy2xao]{flex-direction:column;gap:1.25rem;display:flex}.tab-panel[data-astro-cid-f3vy2xao].hidden{display:none}.pattern-field[data-astro-cid-f3vy2xao]{flex-direction:column;gap:.25rem;display:flex}.pattern-field[data-astro-cid-f3vy2xao]>label[data-astro-cid-f3vy2xao]{color:#475569;font-size:.875rem;font-weight:600}.pattern-input-wrap[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #cbd5e1;border-radius:8px;align-items:center;gap:0;transition:border-color .15s;display:flex;overflow:hidden}.pattern-input-wrap[data-astro-cid-f3vy2xao]:focus-within{border-color:#1e40af;box-shadow:0 0 0 3px #1e40af1a}.pattern-input-wrap[data-astro-cid-f3vy2xao].error{border-color:#dc2626;box-shadow:0 0 0 3px #dc26261a}.slash[data-astro-cid-f3vy2xao]{color:#94a3b8;user-select:none;padding:0 .5rem;font-family:Courier New,monospace;font-size:1.1rem}.pattern-input-wrap[data-astro-cid-f3vy2xao] input[data-astro-cid-f3vy2xao][type=text]{color:#1e293b;background:0 0;border:none;outline:none;flex:1;padding:.625rem .25rem;font-family:Courier New,monospace;font-size:1rem}.flags-group[data-astro-cid-f3vy2xao]{border-left:1px solid #e2e8f0;align-items:center;gap:0;padding:0 .5rem;display:flex}.flag-label[data-astro-cid-f3vy2xao]{color:#475569;cursor:pointer;user-select:none;align-items:center;gap:.2rem;padding:.375rem;font-family:Courier New,monospace;font-size:.95rem;font-weight:600;display:flex}.flag-label[data-astro-cid-f3vy2xao]:hover{color:#1e40af}.flag-label[data-astro-cid-f3vy2xao] input[data-astro-cid-f3vy2xao][type=checkbox]{accent-color:#1e40af;width:14px;height:14px}.pattern-error[data-astro-cid-f3vy2xao]{color:#dc2626;min-height:1.2em;font-size:.8rem}.editors[data-astro-cid-f3vy2xao]{grid-template-columns:1fr 1fr;gap:1rem;display:grid}@media (width<=640px){.editors[data-astro-cid-f3vy2xao]{grid-template-columns:1fr}}.editor-header[data-astro-cid-f3vy2xao]{justify-content:space-between;align-items:center;margin-bottom:.25rem;display:flex}.editor-wrapper[data-astro-cid-f3vy2xao]>label[data-astro-cid-f3vy2xao],.editor-header[data-astro-cid-f3vy2xao]>label[data-astro-cid-f3vy2xao]{color:#475569;font-size:.875rem;font-weight:600}.match-badge[data-astro-cid-f3vy2xao]{color:#1e40af;background:#dbeafe;border-radius:999px;padding:.15rem .5rem;font-size:.8rem;font-weight:600;display:none}.match-badge[data-astro-cid-f3vy2xao].visible{display:inline-block}.match-badge[data-astro-cid-f3vy2xao].no-match{color:#94a3b8;background:#f1f5f9}.info-text[data-astro-cid-f3vy2xao]{color:#64748b;font-size:.8rem}.highlight-container[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #cbd5e1;border-radius:8px;transition:border-color .15s;position:relative;overflow:hidden}.highlight-container[data-astro-cid-f3vy2xao]:focus-within{border-color:#1e40af;box-shadow:0 0 0 3px #1e40af1a}.highlight-container[data-astro-cid-f3vy2xao].error{border-color:#dc2626}.highlight-layer[data-astro-cid-f3vy2xao]{white-space:pre-wrap;word-wrap:break-word;color:#0000;pointer-events:none;box-sizing:border-box;width:100%;height:100%;padding:.875rem;font-family:Courier New,monospace;font-size:1rem;line-height:1.5;position:absolute;top:0;left:0;overflow:hidden}.highlight-layer[data-astro-cid-f3vy2xao] mark{color:#0000;background:#fbbf2480;border-radius:2px;padding:0}#ft-input[data-astro-cid-f3vy2xao]{resize:vertical;color:#1e293b;caret-color:#1e293b;box-sizing:border-box;background:0 0;border:none;outline:none;width:100%;padding:.875rem;font-family:Courier New,monospace;font-size:1rem;line-height:1.5;position:relative}.match-list[data-astro-cid-f3vy2xao]{background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;flex-direction:column;gap:.375rem;min-height:200px;max-height:280px;padding:.75rem;font-family:Courier New,monospace;font-size:.875rem;display:flex;overflow-y:auto}.placeholder-text[data-astro-cid-f3vy2xao]{color:#94a3b8;font-family:inherit;font-size:.875rem}.match-item[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #e2e8f0;border-radius:6px;flex-direction:column;gap:.15rem;padding:.375rem .625rem;display:flex}.match-item[data-astro-cid-f3vy2xao]:hover{background:#eff6ff;border-color:#93c5fd}.match-item-header[data-astro-cid-f3vy2xao]{align-items:center;gap:.5rem;display:flex}.match-num[data-astro-cid-f3vy2xao]{color:#94a3b8;font-size:.75rem}.match-value[data-astro-cid-f3vy2xao]{color:#1e293b;text-overflow:ellipsis;white-space:nowrap;background:#fbbf2459;border-radius:3px;max-width:100%;padding:0 .2rem;font-weight:600;overflow:hidden}.match-pos[data-astro-cid-f3vy2xao]{color:#94a3b8;white-space:nowrap;margin-left:auto;font-size:.72rem}.match-groups[data-astro-cid-f3vy2xao]{color:#475569;flex-wrap:wrap;gap:.25rem;padding-left:.25rem;font-size:.75rem;display:flex}.group-tag[data-astro-cid-f3vy2xao]{color:#0369a1;background:#e0f2fe;border-radius:3px;padding:.05rem .3rem}.replace-section[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #e2e8f0;border-radius:8px}.replace-toggle[data-astro-cid-f3vy2xao]{color:#475569;cursor:pointer;user-select:none;align-items:center;gap:.5rem;padding:.75rem 1rem;font-size:.95rem;font-weight:600;list-style:none;display:flex}.replace-toggle[data-astro-cid-f3vy2xao]::-webkit-details-marker{display:none}.replace-toggle[data-astro-cid-f3vy2xao]:before{content:"▶";color:#94a3b8;font-size:.7rem;transition:transform .15s}details[data-astro-cid-f3vy2xao][open] .replace-toggle[data-astro-cid-f3vy2xao]:before{transform:rotate(90deg)}.replace-body[data-astro-cid-f3vy2xao]{flex-direction:column;gap:1rem;padding:0 1rem 1rem;display:flex}.replace-input-row[data-astro-cid-f3vy2xao]{flex-direction:column;gap:.25rem;display:flex}.replace-input-row[data-astro-cid-f3vy2xao] label[data-astro-cid-f3vy2xao]{color:#475569;font-size:.875rem;font-weight:600}.replace-input-row[data-astro-cid-f3vy2xao] input[data-astro-cid-f3vy2xao][type=text]{color:#1e293b;background:#fff;border:1px solid #cbd5e1;border-radius:8px;outline:none;width:100%;padding:.625rem .875rem;font-family:Courier New,monospace;font-size:.95rem;transition:border-color .15s}.replace-input-row[data-astro-cid-f3vy2xao] input[data-astro-cid-f3vy2xao][type=text]:focus{border-color:#1e40af;box-shadow:0 0 0 3px #1e40af1a}textarea[data-astro-cid-f3vy2xao][readonly]{resize:vertical;color:#1e293b;background:#f8fafc;border:1px solid #cbd5e1;border-radius:8px;outline:none;width:100%;padding:.875rem;font-family:Courier New,monospace;font-size:.875rem;transition:border-color .15s}.btn[data-astro-cid-f3vy2xao]{cursor:pointer;border:none;border-radius:6px;padding:.5rem 1.25rem;font-size:.875rem;font-weight:500;display:inline-block}.btn[data-astro-cid-f3vy2xao]:disabled{opacity:.4;cursor:not-allowed}.btn-primary[data-astro-cid-f3vy2xao]{color:#fff;background:#1e40af}.btn-primary[data-astro-cid-f3vy2xao]:hover:not(:disabled){background:#1e3a8a}.btn-secondary[data-astro-cid-f3vy2xao]{color:#1e293b;background:#e2e8f0}.btn-secondary[data-astro-cid-f3vy2xao]:hover:not(:disabled){background:#cbd5e1}.copy-btn[data-astro-cid-f3vy2xao]{align-self:flex-start;margin-top:.25rem}.quiz-layout[data-astro-cid-f3vy2xao]{grid-template-columns:220px 1fr;align-items:start;gap:1.25rem;display:grid}@media (width<=768px){.quiz-layout[data-astro-cid-f3vy2xao]{grid-template-columns:1fr}}.problem-nav[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #e2e8f0;border-radius:10px;overflow:hidden}.nav-header[data-astro-cid-f3vy2xao]{color:#475569;background:#f8fafc;border-bottom:1px solid #e2e8f0;padding:.75rem 1rem;font-size:.875rem;font-weight:700}.problem-list[data-astro-cid-f3vy2xao]{flex-direction:column;gap:.25rem;padding:.375rem;list-style:none;display:flex}.problem-btn[data-astro-cid-f3vy2xao]{text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;align-items:center;gap:.5rem;width:100%;padding:.5rem .625rem;transition:background .12s;display:flex}.problem-btn[data-astro-cid-f3vy2xao]:hover{background:#f1f5f9}.problem-btn[data-astro-cid-f3vy2xao].active{background:#eff6ff;border-color:#bfdbfe}.problem-btn[data-astro-cid-f3vy2xao].solved{background:#f0fdf4;border-color:#bbf7d0}.problem-btn-title[data-astro-cid-f3vy2xao]{color:#334155;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0;font-size:.8rem;overflow:hidden}.check-icon[data-astro-cid-f3vy2xao]{flex-shrink:0;font-size:.875rem}.level-badge[data-astro-cid-f3vy2xao]{white-space:nowrap;border-radius:999px;flex-shrink:0;padding:.1rem .4rem;font-size:.7rem;font-weight:700}.level-1[data-astro-cid-f3vy2xao]{color:#166534;background:#dcfce7}.level-2[data-astro-cid-f3vy2xao]{color:#854d0e;background:#fef9c3}.level-3[data-astro-cid-f3vy2xao]{color:#9d174d;background:#fce7f3}.quiz-card[data-astro-cid-f3vy2xao]{background:#fff;border:1px solid #e2e8f0;border-radius:12px;flex-direction:column;gap:1.25rem;padding:1.5rem;display:flex}.quiz-card-header[data-astro-cid-f3vy2xao]{align-items:center;gap:.75rem;display:flex}.quiz-num[data-astro-cid-f3vy2xao]{color:#64748b;font-size:.875rem;font-weight:600}.quiz-title[data-astro-cid-f3vy2xao]{color:#1e293b;font-size:1.2rem;font-weight:700}.quiz-desc[data-astro-cid-f3vy2xao]{color:#475569;font-size:.95rem;line-height:1.6}.quiz-text-section[data-astro-cid-f3vy2xao],.quiz-expected-section[data-astro-cid-f3vy2xao],.quiz-answer-section[data-astro-cid-f3vy2xao]{flex-direction:column;gap:.5rem;display:flex}.section-label-row[data-astro-cid-f3vy2xao]{justify-content:space-between;align-items:center;display:flex}.section-label[data-astro-cid-f3vy2xao]{color:#64748b;text-transform:uppercase;letter-spacing:.04em;font-size:.8rem;font-weight:700}.expected-count[data-astro-cid-f3vy2xao]{color:#64748b;font-size:.8rem}.quiz-test-text[data-astro-cid-f3vy2xao]{color:#1e293b;white-space:pre-wrap;word-break:break-all;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin:0;padding:.875rem;font-family:Courier New,monospace;font-size:.9rem;line-height:1.6}.expected-list[data-astro-cid-f3vy2xao]{flex-wrap:wrap;gap:.375rem;display:flex}.expected-tag[data-astro-cid-f3vy2xao]{color:#1e40af;background:#dbeafe;border-radius:4px;padding:.2rem .5rem;font-family:Courier New,monospace;font-size:.85rem;font-weight:600}.quiz-feedback[data-astro-cid-f3vy2xao]{border:1px solid #e2e8f0;border-radius:8px;min-height:5rem;padding:1rem;transition:border-color .2s,background .2s}.quiz-feedback[data-astro-cid-f3vy2xao].correct{background:#f0fdf4;border-color:#22c55e}.quiz-feedback[data-astro-cid-f3vy2xao].incorrect{background:#fff7ed;border-color:#f97316}.quiz-feedback[data-astro-cid-f3vy2xao].error{background:#fef2f2;border-color:#dc2626}.feedback-placeholder[data-astro-cid-f3vy2xao]{color:#94a3b8;font-size:.9rem}.feedback-result[data-astro-cid-f3vy2xao]{flex-direction:column;gap:.625rem;display:flex}.feedback-status[data-astro-cid-f3vy2xao]{align-items:center;gap:.5rem;font-size:1rem;font-weight:700;display:flex}.feedback-status[data-astro-cid-f3vy2xao].correct{color:#15803d}.feedback-status[data-astro-cid-f3vy2xao].incorrect{color:#c2410c}.feedback-status[data-astro-cid-f3vy2xao].error{color:#dc2626}.feedback-detail[data-astro-cid-f3vy2xao]{color:#475569;font-size:.875rem}.feedback-matches[data-astro-cid-f3vy2xao]{flex-wrap:wrap;gap:.25rem;margin-top:.25rem;display:flex}.feedback-match-tag[data-astro-cid-f3vy2xao]{color:#15803d;background:#fff;border:1px solid #86efac;border-radius:4px;padding:.1rem .4rem;font-family:Courier New,monospace;font-size:.8rem}.feedback-match-tag[data-astro-cid-f3vy2xao].missing{color:#dc2626;background:#fef2f2;border-color:#fca5a5}.feedback-match-tag[data-astro-cid-f3vy2xao].extra{color:#92400e;background:#fffbeb;border-color:#fde68a}.quiz-actions[data-astro-cid-f3vy2xao]{flex-wrap:wrap;gap:.625rem;display:flex}.quiz-hint[data-astro-cid-f3vy2xao],.quiz-solution[data-astro-cid-f3vy2xao]{border-radius:8px;flex-wrap:wrap;align-items:baseline;gap:.5rem;padding:.875rem;font-size:.9rem;display:flex}.quiz-hint[data-astro-cid-f3vy2xao]{color:#78350f;background:#fefce8;border:1px solid #fde68a}.quiz-solution[data-astro-cid-f3vy2xao]{color:#0c4a6e;background:#f0f9ff;border:1px solid #bae6fd}.hint-label[data-astro-cid-f3vy2xao],.solution-label[data-astro-cid-f3vy2xao]{white-space:nowrap;font-weight:700}.solution-code[data-astro-cid-f3vy2xao]{background:#e0f2fe;border-radius:4px;padding:.1rem .4rem;font-family:Courier New,monospace;font-size:.9rem}.hidden[data-astro-cid-f3vy2xao]{display:none!important}.progress-section[data-astro-cid-f3vy2xao]{margin-top:1rem}.progress-label[data-astro-cid-f3vy2xao]{color:#64748b;justify-content:space-between;margin-bottom:.375rem;font-size:.8rem;display:flex}.progress-bar-bg[data-astro-cid-f3vy2xao]{background:#e2e8f0;border-radius:999px;height:8px;overflow:hidden}.progress-bar-fill[data-astro-cid-f3vy2xao]{background:#22c55e;border-radius:999px;height:100%;transition:width .3s}#panel-test[data-astro-cid-f3vy2xao] .pattern-field[data-astro-cid-f3vy2xao]>label[data-astro-cid-f3vy2xao]{color:#475569;font-size:.875rem;font-weight:600}