:root{--bg:#f7f6f3;--card:#ffffff;--ink:#1d2433;--muted:#5d6677;--line:#e3e0d8;--brand:#0f2a5e;--brand-ink:#ffffff;--danger:#b3261e;--ok:#1a7f4b}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#12161f;--card:#1b2130;--ink:#eef0f5;--muted:#a3acbd;--line:#2b3347;--brand:#7fa6ff;--brand-ink:#0b1220;--danger:#ff8a80;--ok:#6fd6a0}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}.wrap{max-width:760px;margin:0 auto;padding:16px}.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:var(--card)}.top b{font-size:18px}.top .right{display:flex;align-items:center;gap:8px}h1{font-size:24px;margin:20px 0 12px}h2{font-size:18px;margin:24px 0 8px}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px;margin:12px 0}.list{list-style:none;margin:0;padding:0}.list li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.list li:last-child{border-bottom:0}label{display:block;font-size:14px;color:var(--muted);margin:10px 0 4px}input,select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit}.btn,button{display:inline-block;padding:10px 16px;border:0;border-radius:10px;cursor:pointer;background:var(--brand);color:var(--brand-ink);font:inherit;font-weight:600;text-decoration:none}.btn.ghost,button.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}button.small{padding:6px 10px;font-size:14px}a{color:var(--brand)}.msg{padding:10px 12px;border-radius:10px;margin:12px 0;border:1px solid var(--line)}.msg.err{color:var(--danger);border-color:var(--danger)}.msg.ok{color:var(--ok);border-color:var(--ok)}.muted{color:var(--muted);font-size:14px}.row{display:grid;grid-template-columns:1fr;gap:8px}@media (min-width:560px){.row.two{grid-template-columns:2fr 1fr auto;align-items:end}}.task{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid var(--line)}.task:last-child{border-bottom:0}.task .grow{flex:1 1;min-width:0}.task .ttl{color:var(--ink);text-decoration:none;word-break:break-word}.task.isdone .ttl{text-decoration:line-through;color:var(--muted)}.check{width:28px;height:28px;padding:0;border-radius:50%;border:2px solid var(--line);background:transparent;color:var(--brand-ink);font-size:16px;line-height:1;flex:none}.check.on{background:var(--ok);border-color:var(--ok)}.meta{font-size:13px}.badge,.meta{color:var(--muted)}.badge{display:inline-block;padding:1px 8px;border-radius:999px;border:1px solid var(--line);font-size:12px}.badge.high{border-color:var(--danger)}.badge.high,.late{color:var(--danger)}.inline{display:flex;gap:8px;margin-top:10px}.inline input{flex:1 1}textarea{width:100%;min-height:110px;padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--ink);font:inherit;resize:vertical}.sec h3{margin:18px 0 4px;font-size:16px}.danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}.list .grow{flex:1 1;min-width:0}.top .count{background:var(--danger);color:#fff;border-radius:999px;padding:0 7px;font-size:12px;margin-left:4px}.unread{font-weight:600}details.confirm{display:inline-block}details.confirm>summary{list-style:none;cursor:pointer}details.confirm>summary::-webkit-details-marker{display:none}.confirm-box{margin-top:8px;padding:10px;border:1px solid var(--danger);border-radius:10px;max-width:420px}.sec-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.sec-head h3{margin:18px 0 4px}details.manage>summary{list-style:none;cursor:pointer}details.manage>summary::-webkit-details-marker{display:none}.manage-box{margin:6px 0 10px;display:grid;gap:8px}.danger-zone{margin:16px 0}