:root {
  --bg: #f6f6f4; --panel: #ffffff; --text: #1b1b1a; --muted: #6b6b66;
  --line: #e2e2dd; --accent: #2f6fde; --accent-text: #fff; --danger: #c43c3c;
  --ok: #2e9a5b; --warn: #c58a17; --chip: #efefeb;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #151515; --panel: #1e1e1e; --text: #e8e8e4; --muted: #9a9a94;
    --line: #2e2e2c; --accent: #5b8ff0; --chip: #2a2a28; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif; }
[hidden] { display: none !important; }
a { color: var(--accent); }
button { font: inherit; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-text);
  border-radius: 6px; padding: 6px 12px; cursor: pointer; }
button.ghost { background: transparent; color: var(--text); border-color: var(--line); }
button.danger { color: var(--danger); }
button.small { padding: 2px 8px; font-size: 12px; }
input, textarea { font: inherit; color: var(--text); background: var(--bg); border: 1px solid var(--line);
  border-radius: 6px; padding: 7px 9px; width: 100%; }
.muted { color: var(--muted); }
.err { color: var(--danger); min-height: 1em; }

.login { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 24px;
  width: 100%; max-width: 380px; display: grid; gap: 12px; }
.card h1 { margin: 0; }
.card label { display: grid; gap: 4px; }
details { display: grid; gap: 8px; }
details[open] > * + * { margin-top: 8px; }

.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
aside { background: var(--panel); border-right: 1px solid var(--line); padding: 16px 12px;
  display: flex; flex-direction: column; gap: 8px; }
.brand { font-weight: 700; font-size: 18px; padding: 0 6px 8px; }
.label { text-transform: uppercase; font-size: 11px; letter-spacing: .06em; color: var(--muted); padding: 0 6px; }
#devices { list-style: none; margin: 0; padding: 0; flex: 1; }
#devices li { padding: 7px 8px; border-radius: 6px; cursor: pointer; display: flex; gap: 8px; align-items: center; }
#devices li.sel { background: var(--chip); font-weight: 600; }
#devices li .kind { margin-left: auto; font-size: 11px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--line); flex: none; }
.dot.on { background: var(--ok); }
.me { font-size: 12px; padding: 0 6px; }

main { padding: 20px 24px; max-width: 920px; width: 100%; }
header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
header h2 { margin: 0; }
.devActions { display: flex; gap: 6px; }

.compose { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px;
  margin: 16px 0; display: grid; gap: 8px; }
.row { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 7px; overflow: hidden; }
.seg button { background: transparent; color: var(--text); border: 0; border-radius: 0; padding: 5px 11px; }
.seg button.on { background: var(--chip); font-weight: 600; }

.tabs { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.chk { display: inline-flex; gap: 6px; align-items: center; }
.chk input { width: auto; }

.items { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.item { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  display: grid; gap: 6px; }
.item.dismissed { opacity: .55; }
.item .top { display: flex; gap: 8px; align-items: center; font-size: 12px; color: var(--muted); }
.item .top .tag { background: var(--chip); color: var(--text); border-radius: 4px; padding: 1px 6px; font-weight: 600; }
.item .title { font-weight: 600; }
.item .body { white-space: pre-wrap; word-break: break-word; }
.item .acts { display: flex; gap: 6px; flex-wrap: wrap; }
.item img.thumb { max-width: 100%; max-height: 260px; border-radius: 6px; justify-self: start; }
.status { font-weight: 600; }
.status.completed, .status.uploaded { color: var(--ok); }
.status.failed, .status.declined, .status.cancelled, .status.unavailable { color: var(--danger); }
.status.offered, .status.accepted, .status.connecting, .status.transferring { color: var(--warn); }
.empty { color: var(--muted); padding: 24px 0; text-align: center; }

@media (max-width: 720px) {
  .app { grid-template-columns: 1fr; }
  aside { border-right: 0; border-bottom: 1px solid var(--line); }
  #devices { display: flex; flex-wrap: wrap; gap: 4px; }
  main { padding: 16px; }
}