:root{--ink: #1f2937;--muted: #6b7280;--line: #e5e7eb;--accent: #2563eb;--ok: #16a34a;--warn: #d97706;--bad: #dc2626;font-family:system-ui,-apple-system,Segoe UI,sans-serif;color:var(--ink);background:#f8fafc}*{box-sizing:border-box}body{margin:0}.page{max-width:640px;margin:32px auto;padding:0 16px 48px}.header{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}h1{margin:0;font-size:24px}.subtitle{margin:4px 0 0;color:var(--muted);font-size:13px}.status{display:flex;align-items:center;gap:8px;font-size:13px}.dot{width:9px;height:9px;border-radius:50%}.dot.on{background:var(--ok)}.dot.off{background:var(--bad)}.badge{padding:3px 10px;border-radius:999px;font-weight:600}.badge.synced{background:#dcfce7;color:#166534}.badge.waiting{background:#fef3c7;color:#92400e}.toggle{display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center;margin:20px 0 12px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}.toggle small{grid-column:2;color:var(--muted)}.toggle.is-offline{border-color:var(--warn);background:#fffbeb}.toggle input{width:18px;height:18px;grid-row:span 2}.add{display:flex;gap:8px}.add input{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px}.add button{padding:0 18px;border:0;border-radius:8px;background:var(--accent);color:#fff;font-weight:600;cursor:pointer}.add button:disabled{opacity:.5;cursor:default}.filters{display:flex;gap:6px;margin:18px 0 8px}.filters button{padding:6px 12px;border:0;border-radius:999px;background:#e5e7eb;cursor:pointer;font-size:13px}.filters button.active{background:var(--ink);color:#fff}.count{margin-left:6px;opacity:.7}.list{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--line);border-radius:10px}.row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-top:1px solid var(--line)}.row:first-child{border-top:0}.row input[type=checkbox]{width:18px;height:18px}.row .title{flex:1;cursor:text;word-break:break-word}.row.done .title{text-decoration:line-through;color:var(--muted)}.row.deleting{opacity:.5}.row .edit{flex:1;padding:4px 6px;font-size:15px;border:1px solid var(--accent);border-radius:6px}.delete{border:0;background:none;color:var(--muted);cursor:pointer;font-size:15px}.delete:hover{color:var(--bad)}.empty{padding:16px;color:var(--muted);text-align:center}.tag{font-size:11px;padding:2px 8px;border-radius:999px;white-space:nowrap;font-weight:600}.tag.queued{background:#fef3c7;color:#92400e}.tag.sending{background:#dbeafe;color:#1e40af}.tag.error{background:#fee2e2;color:#991b1b}.guide{margin-top:28px;font-size:14px;line-height:1.55;color:#374151}.guide h2{font-size:16px;margin-bottom:6px}.guide ol{padding-left:20px;margin:0}.note{color:var(--muted);font-size:13px}.host{margin:16px 0 0;padding:8px 12px;border-radius:8px;font-size:13px}.host.shared-worker{background:#eef2ff;color:#3730a3}.host.tab{background:#f3f4f6;color:#374151}