.sf-rehearsal{margin:16px 0;padding:12px;border:2px solid #0c4a6e;border-radius:12px;background:#f0f9ff;color:#0c4a6e;font-size:.85rem;line-height:1.5}
.sf-rehearsal summary{min-height:44px;display:flex;align-items:center;cursor:pointer;font-weight:800;list-style:revert}
.sf-rehearsal summary::before{content:"›";margin-right:8px}
.sf-rehearsal[open] summary::before{content:"⌄"}
.sf-rehearsal p{margin:8px 0}
.sf-rehearsal-board{display:grid;grid-template-columns:repeat(var(--rehearsal-n,4),minmax(0,1fr));gap:4px;margin:12px 0;padding:4px;background:#0c4a6e;border-radius:8px}
.sf-rehearsal-tile,.sf-rehearsal-gap{min-width:44px;min-height:44px;aspect-ratio:1;display:flex;align-items:center;justify-content:center;border:0;border-radius:5px;font:800 1.1rem/1 system-ui;background:#fff;color:#0c4a6e}
.sf-rehearsal-tile{cursor:pointer;touch-action:manipulation}
.sf-rehearsal-tile.is-home{background:#bbf7d0;color:#14532d}
.sf-rehearsal-tile:disabled{cursor:default;opacity:.8}
.sf-rehearsal-gap{font-size:.7rem;color:#fff;background:transparent}
.sf-rehearsal label{display:block;font-weight:700;margin-top:8px}
.sf-rehearsal select{width:100%;min-width:0;min-height:44px;padding:8px;border:2px solid #0c4a6e;border-radius:6px;background:#fff;color:#0c4a6e;font:inherit}
.sf-rehearsal-actions{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.sf-rehearsal-actions button{flex:1 1 110px;min-width:0;min-height:44px;padding:8px;border:2px solid #0c4a6e;border-radius:6px;background:#fff;color:#0c4a6e;font:700 .8rem/1.3 system-ui;cursor:pointer;touch-action:manipulation}
.sf-rehearsal-actions button:disabled{opacity:.55;cursor:default}
.sf-rehearsal :focus-visible{outline:3px solid #f59e0b;outline-offset:2px}
.sf-rehearsal-result{font-variant-numeric:tabular-nums}
@media(prefers-reduced-motion:reduce){.sf-rehearsal *{animation:none;transition:none}}