:root{color:#111827;background:#f3f4f6;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.4}*{box-sizing:border-box}body{margin:0}#root{min-height:100vh}.layout{max-width:760px;margin:0 auto;padding:12px}header,main,nav{background:#fff;border-radius:12px;margin-bottom:10px;padding:12px}h1,h2,h3,p{margin:0 0 8px}nav{flex-wrap:wrap;gap:8px;display:flex}a{color:#2563eb;text-underline-offset:2px;text-decoration:underline}nav a,.actions a{color:#374151;border:1px solid #d1d5db;border-radius:8px;padding:8px 10px;text-decoration:none;display:inline-block}nav a.active,nav a[aria-current=page]{color:#fff;background:#111827;border-color:#111827}.muted{color:#6b7280}.chip{color:#3730a3;background:#eef2ff;border-radius:999px;margin-bottom:8px;padding:4px 10px;display:inline-block}.field{flex-direction:column;gap:6px;margin-bottom:10px;display:flex}select,button{background:#fff;border:1px solid #d1d5db;border-radius:8px;padding:10px;font-size:14px}button{cursor:pointer}.cards{gap:10px;display:grid}.card{border:1px solid #e5e7eb;border-radius:12px;padding:10px}.home-update{margin-top:16px}.home-update__title{margin:0 0 8px;font-size:1.05rem}.home-update__chip{margin-bottom:10px}.home-update__hint{margin-bottom:12px;font-size:14px}.home-update__primary{margin-bottom:12px;color:#fff!important;background:#111827!important;border-color:#111827!important}.home-update__auto{align-items:flex-start;max-width:42rem;display:flex}.options{gap:8px;margin:8px 0;display:grid}.option{text-align:left}.selected{background:#eef2ff;border-color:#4338ca}.option.correct{background:#d1fae5;border-color:#059669}.option.wrong{background:#fee2e2;border-color:#dc2626}.exam-card--mistake{background:snow;border-color:#fecaca}.exam-mistake-review{border-top:1px solid #e5e7eb;margin-top:10px;padding-top:8px;font-size:14px}.exam-result-top{margin-bottom:12px}.exam-mistakes-summary{margin-top:8px}.exam-mistakes-summary-title{margin-bottom:4px;font-weight:600}.exam-mistakes-summary ul{margin:0;padding-left:1.2rem}.exam-mistakes-summary a{font-weight:500}.header-actions{flex-wrap:wrap;align-items:center;gap:10px;margin-top:8px;display:flex}.pwa-banner{background:#eef2ff;border:1px solid #c7d2fe;border-radius:12px;margin-bottom:10px;padding:12px;font-size:14px}.pwa-banner--update{background:#fffbeb;border-color:#fcd34d}.pwa-banner--notice{margin-bottom:12px}.pwa-banner__row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.pwa-banner__primary{color:#fff!important;background:#111827!important;border-color:#111827!important}.pwa-inline{color:#374151;cursor:pointer;-webkit-user-select:none;user-select:none;align-items:center;gap:8px;font-size:14px;display:inline-flex}.actions{flex-wrap:wrap;gap:8px;margin:8px 0;display:flex}.result{border-radius:10px;padding:8px}.result.ok{background:#ecfdf5}.result.bad{background:#fef2f2}.rules-full .rules-code{background:#f3f4f6;border:1px solid #e5e7eb;border-radius:6px;padding:1px 6px;font-size:.95em}.rules-toolbar{z-index:2;background:#fff;border-bottom:1px solid #e5e7eb;margin-bottom:8px;padding:10px 0 8px;position:sticky;top:0}.rules-search-field input{width:100%}.rules-toolbar-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:8px;display:flex}.rules-count{flex:auto;min-width:0}.rules-nav-buttons{margin:0}.rules-body{background:#fafafa;border:1px solid #e5e7eb;border-radius:12px;max-height:min(70vh,640px);padding:8px 0;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:13px;line-height:1.45;overflow:auto}.rules-line{gap:10px;padding:2px 10px;scroll-margin-top:48px;display:flex}.rules-lineno{text-align:right;color:#9ca3af;-webkit-user-select:none;user-select:none;flex:0 0 2.75rem}.rules-text{white-space:pre-wrap;word-break:break-word;flex:auto;min-width:0}.rules-line--match{background:#fef9c3}.rules-line--active{background:#fde047;outline:1px solid #ca8a04}