:root {
  --bg: #f4f6f5;
  --surface: #ffffff;
  --text: #16201b;
  --muted: #5b6b63;
  --border: #d9e1dc;
  --accent: #128c4a;
  --accent-text: #ffffff;
  --danger: #b3261e;
  --warn: #8a5a00;
  --info: #1a5fb4;
  --radius: 12px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1613;
    --surface: #17211c;
    --text: #e6efe9;
    --muted: #9db0a5;
    --border: #2a3a32;
    --accent: #2ec27e;
    --accent-text: #05160d;
    --danger: #ff7b72;
    --warn: #f0c36a;
    --info: #78aeed;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

main { max-width: 520px; margin: 0 auto; padding: 24px 16px 48px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
h1 { font-size: 1.25rem; margin: 0; }
h1 span { color: var(--accent); }
h2 { font-size: 1.05rem; margin: 0 0 4px; }

.session { display: flex; align-items: center; gap: 10px; font-size: .875rem; color: var(--muted); min-width: 0; }
.session span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.hint { color: var(--muted); font-size: .9rem; margin: 4px 0 12px; }
.error-text { color: var(--danger); font-size: .9rem; margin: 8px 0 0; }

.msg { padding: 10px 14px; border-radius: 8px; margin: 0 0 16px; font-size: .9rem; border: 1px solid var(--border); background: var(--surface); }
.msg[data-kind="error"] { border-color: var(--danger); color: var(--danger); }
.msg[data-kind="ok"] { border-color: var(--accent); color: var(--accent); }

form { display: grid; gap: 12px; }
label { display: grid; gap: 4px; font-size: .875rem; font-weight: 600; }
input, textarea {
  font: inherit; font-weight: 400; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; width: 100%;
}
input:focus-visible, textarea:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

button {
  font: inherit; font-weight: 600; cursor: pointer;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  border-radius: 8px; padding: 10px 16px; min-height: 44px;
}
button:disabled { opacity: .6; cursor: not-allowed; }
button.primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.link { background: none; border: 0; padding: 0; min-height: 0; color: var(--info); text-decoration: underline; }

.status-row { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.status-row .hint { margin: 0; }
.badge { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: .875rem; padding: 4px 12px; border-radius: 999px; border: 1px solid currentColor; }
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.badge[data-status="connected"] { color: var(--accent); }
.badge[data-status="connecting"] { color: var(--warn); }
.badge[data-status="qr"] { color: var(--info); }
.badge[data-status="disconnected"] { color: var(--muted); }

.tabs { display: flex; gap: 8px; margin: 8px 0 16px; }
.tab { flex: 1; }
.tab[aria-selected="true"] { border-color: var(--accent); color: var(--accent); }

.qr-wrap, .code-wrap { display: grid; gap: 16px; justify-items: center; margin-bottom: 16px; }
#qr-img { background: #fff; padding: 8px; border-radius: 8px; max-width: 100%; height: auto; }
.code { font: 700 2rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .15em; margin: 0; }
.steps { margin: 0; padding-left: 20px; font-size: .9rem; color: var(--muted); justify-self: start; }

.info { margin: 12px 0 16px; display: grid; gap: 8px; }
.info div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.info dt { color: var(--muted); }
.info dd { margin: 0; font-weight: 600; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; }

[hidden] { display: none !important; }