:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--bg:#fff;--fg:#1a1a1a;--muted:#6b7280;--accent:#2563eb;--border:#d1d5db;--error:#b91c1c;--card-bg:#f8fafc;font-family:system-ui,-apple-system,Segoe UI,sans-serif}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#111827;--fg:#f3f4f6;--muted:#9ca3af;--accent:#60a5fa;--border:#374151;--error:#f87171;--card-bg:#1f2937}}*{box-sizing:border-box}body{background:var(--bg);color:var(--fg);margin:0}button{font:inherit;cursor:pointer}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-header{border-bottom:1px solid var(--border);padding:1rem 1.5rem}.app-title{color:inherit;font-size:1.25rem;font-weight:700;text-decoration:none}.app-main{flex:1;width:100%;max-width:720px;margin:0 auto;padding:1.5rem}.screen h1{margin-top:0}.error{color:var(--error)}.hint{color:var(--muted);margin-top:.25rem;font-size:.85rem;display:block}.option-grid{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin:1rem 0;display:grid}.option-card{border:1px solid var(--border);background:var(--card-bg);text-align:left;border-radius:8px;flex-direction:column;align-items:flex-start;gap:.25rem;padding:1rem;display:flex}.option-card--static{cursor:default}.edit-list{flex-direction:column;gap:.5rem;margin:1rem 0;padding:0;list-style:none;display:flex}.edit-row{align-items:center;gap:.5rem;display:flex}.edit-row input{border:1px solid var(--border);background:var(--bg);color:var(--fg);border-radius:4px;flex:1;padding:.5rem}.progress-bar{background:var(--border);border-radius:4px;height:8px;margin-bottom:.5rem;overflow:hidden}.progress-bar-fill{background:var(--accent);height:100%;transition:width .2s}.progress-label{color:var(--muted);margin-top:0;font-size:.85rem}.pair{grid-template-columns:1fr 1fr;gap:1rem;margin-top:1.5rem;display:grid}.pair-card{border:1px solid var(--border);background:var(--card-bg);color:var(--fg);border-radius:8px;min-height:120px;padding:2rem 1rem;font-size:1.1rem;font-weight:600}.pair-card:hover{border-color:var(--accent)}.results-list{flex-direction:column;gap:.5rem;padding:0;list-style:none;display:flex}.results-row{border:1px solid var(--border);border-radius:8px;align-items:center;gap:.75rem;padding:.5rem;display:flex}.results-row .rank{min-width:2ch;font-weight:700}.results-row .cover{object-fit:cover;background:var(--border);border-radius:4px;width:40px;height:60px}.session-list{flex-direction:column;gap:.5rem;padding:0;list-style:none;display:flex}.session-row{border:1px solid var(--border);border-radius:8px;align-items:center;gap:.75rem;padding:.5rem;display:flex}.session-row span{flex:1}