:root {
  --bg: #0e1116;
  --panel: #151a22;
  --panel-hi: #1c232d;
  --border: #2a3340;
  --text: #e6edf3;
  --muted: #8b98a9;
  --accent: #4c8bf5;
  --accent-hi: #6ba1ff;
  --danger: #e25c5c;
  --ok: #4caf85;
  --warn: #e6a23c;
  --radius: 10px;
  --shadow: 0 4px 18px rgba(0,0,0,.35);
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background:var(--bg); color:var(--text); font:14px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; }
a { color: var(--accent); text-decoration:none; }
a:hover { color: var(--accent-hi); }
.container { max-width: 1100px; margin: 0 auto; padding: 24px 20px 80px; }
.header { display:flex; align-items:center; justify-content:space-between; margin-bottom:24px; gap:12px; flex-wrap:wrap; }
.header h1 { margin:0; font-size:22px; font-weight:600; }
.crumbs { color:var(--muted); font-size:13px; margin-bottom:14px; }
.crumbs a { color:var(--muted); }
.crumbs a:hover { color:var(--text); }

.btn { display:inline-flex; align-items:center; gap:6px; border:1px solid var(--border); background:var(--panel); color:var(--text); padding:7px 12px; border-radius:8px; cursor:pointer; font-size:13px; transition: background .12s, border-color .12s; }
.btn:hover { background: var(--panel-hi); border-color:#3a4555; }
.btn.primary { background: var(--accent); border-color: var(--accent); color:#fff; }
.btn.primary:hover { background: var(--accent-hi); border-color: var(--accent-hi); }
.btn.danger { color: var(--danger); }
.btn.ghost { background:transparent; }
.btn.sm { padding:4px 8px; font-size:12px; }

.grid { display:grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap:16px; }
.card { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:14px; display:flex; flex-direction:column; gap:10px; }
.card:hover { border-color:#3a4555; }
.card .title { font-weight:600; font-size:15px; word-break:break-word; }
.card .meta { color:var(--muted); font-size:12px; display:flex; gap:10px; flex-wrap:wrap; }
.card .thumb { aspect-ratio: 16/10; background:#0b0e13; border-radius:8px; overflow:hidden; display:flex; align-items:center; justify-content:center; border:1px solid var(--border); }
.card .thumb img { width:100%; height:100%; object-fit:contain; }
.card .thumb .empty { color:#4a5565; font-size:12px; }
.card .actions { display:flex; gap:6px; flex-wrap:wrap; }
.card a.title-link { color:var(--text); }
.card a.title-link:hover { color:var(--accent-hi); }

.status-badge { font-size:11px; padding:2px 6px; border-radius:4px; border:1px solid transparent; }
.status-active { color: var(--accent-hi); border-color:#2a3e63; background:#15243d; }
.status-done { color: var(--ok); border-color:#1f4034; background:#112920; }
.status-archive { color: var(--muted); border-color:#2a3340; background:#121720; }

.note-block { background:var(--panel-hi); border:1px solid var(--border); border-radius:8px; padding:10px 12px; margin-bottom:16px; color:var(--muted); font-size:13px; white-space:pre-wrap; }

input[type=text], textarea { background:#0b0e13; color:var(--text); border:1px solid var(--border); border-radius:7px; padding:7px 10px; font: inherit; width:100%; }
input:focus, textarea:focus { outline:none; border-color:var(--accent); }
textarea { resize:vertical; min-height:72px; }

.modal-bg { position:fixed; inset:0; background:rgba(0,0,0,.6); display:flex; align-items:center; justify-content:center; z-index:1000; }
.modal { background:var(--panel); border:1px solid var(--border); border-radius:var(--radius); padding:18px; width:min(440px, 94vw); display:flex; flex-direction:column; gap:12px; box-shadow:var(--shadow); }
.modal h3 { margin:0 0 4px; font-size:16px; }
.modal .row { display:flex; gap:8px; justify-content:flex-end; }
.modal .qr-wrap { display:flex; flex-direction:column; align-items:center; gap:10px; }
.modal .qr-wrap img { width:280px; height:280px; background:#fff; border-radius:8px; padding:8px; }
.modal .qr-wrap .url { font-size:12px; color:var(--muted); word-break:break-all; text-align:center; }

.empty-state { color:var(--muted); text-align:center; padding:40px 20px; }

/* Board page */
.board-chrome { position:fixed; top:0; left:0; right:0; height:44px; background:var(--panel); border-bottom:1px solid var(--border); display:flex; align-items:center; justify-content:space-between; padding:0 14px; z-index:10; gap:12px; }
.board-chrome .left, .board-chrome .right { display:flex; align-items:center; gap:10px; min-width:0; }
.board-chrome .name { font-weight:600; font-size:14px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:40vw; }
.board-chrome .save-status { color:var(--muted); font-size:12px; min-width:74px; }
.board-chrome .save-status.saving { color:var(--warn); }
.board-chrome .save-status.saved { color:var(--ok); }
.board-chrome .save-status.error { color:var(--danger); }
#excalidraw-root { position:fixed; inset:44px 0 0 0; }

/* status select inline */
.status-select { background:#0b0e13; color:var(--text); border:1px solid var(--border); border-radius:6px; padding:3px 6px; font-size:12px; }

/* spinner */
.spinner { width:22px; height:22px; border:2px solid var(--border); border-top-color: var(--accent); border-radius:50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.center { display:flex; align-items:center; justify-content:center; padding:40px; }

@media (max-width: 600px) {
  .container { padding:16px 12px 60px; }
  .header h1 { font-size:18px; }
  .board-chrome .name { max-width:40vw; }
}