:root{--bg:#fff;--fg:#111;--muted:#666;--primary:#6b46c1}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,Apple Color Emoji,Segoe UI Emoji}a{color:var(--primary);text-decoration:none}button{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid #eaeaea;background:#fff;color:var(--fg);padding:8px 12px;border-radius:8px;cursor:pointer}input,select{padding:8px 10px;border-radius:6px;border:1px solid #ddd}.card{border:1px solid #eaeaea;border-radius:12px;padding:16px;background:#fff}.grid{display:grid;grid-template-columns:repeat(6,44px);grid-auto-rows:44px;grid-gap:6px;gap:6px}.grid .cell{display:flex;align-items:center;justify-content:center;border-radius:8px;background:#f5f5f5;border:1px solid #eee;font-weight:600}