:root{--bg: #f4f6fb;--card: #ffffff;--ink: #1d2433;--muted: #6b7280;--accent: #4f7cff;--done: #22c55e}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink)}.wrap{max-width:720px;margin:0 auto;padding:16px}header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}h1{font-size:1.4rem;margin:0}.filters{display:flex;gap:6px}.filters button{border:none;background:#e5e9f2;padding:6px 14px;border-radius:999px;cursor:pointer;font-size:.9rem}.filters button.on{background:var(--accent);color:#fff}ul{list-style:none;margin:16px 0;padding:0}li{background:var(--card);border-radius:14px;padding:14px;margin-bottom:10px;display:flex;align-items:center;gap:12px;cursor:pointer;box-shadow:0 1px 3px #0000000f;transition:opacity .2s;-webkit-tap-highlight-color:transparent}li.done{opacity:.55}li.done .body{text-decoration:line-through}.check{width:26px;height:26px;min-width:26px;border:2px solid var(--muted);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--done);font-weight:700}li.done .check{border-color:var(--done);background:var(--done);color:#fff}.body{flex:1;min-width:0}.desc{color:var(--muted);font-size:.95rem;margin-top:2px}footer{text-align:center;color:var(--muted);font-size:.85rem}@media(max-width:480px){.wrap{padding:10px}h1{font-size:1.15rem}li{padding:12px}}