:root {
  --bg: #f6f7f9; --card: #fff; --fg: #1b1f24; --muted: #646d78; --line: #e2e5ea;
  --accent: #128c4a; --accent-fg: #fff; --warn-bg: #fff6e0; --warn-fg: #6b4a00;
  --err: #b42318; --ok: #0f7a3f;
  --st-queued: #646d78; --st-sent: #2459b8; --st-delivered: #0f7a3f; --st-read: #0b6b6b;
  --st-failed: #b42318; --st-unknown: #9a5b00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1216; --card: #171b21; --fg: #e6e9ee; --muted: #9aa3ae; --line: #2a3038;
    --accent: #25a865; --warn-bg: #3a2e10; --warn-fg: #f3d58a; --err: #f07167; --ok: #5fd08f;
    --st-queued: #9aa3ae; --st-sent: #7aa7ff; --st-delivered: #5fd08f; --st-read: #5ccfcf;
    --st-failed: #f07167; --st-unknown: #f0b45a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; padding: 16px; background: var(--bg); color: var(--fg);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; max-width: 1040px; margin: 0 auto 8px; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 16px; margin: 0 0 12px; }
.muted { color: var(--muted); font-weight: normal; }
.badge { border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; font-size: 13px; }
.note { max-width: 1040px; margin: 8px auto; padding: 8px 12px; border-radius: 8px; background: var(--card); border: 1px solid var(--line); }
.note.warn { background: var(--warn-bg); color: var(--warn-fg); border-color: transparent; }
.note.fake { border-color: var(--st-unknown); border-width: 2px; }
.badge.fake { border-color: var(--st-unknown); color: var(--st-unknown); font-weight: 600; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
main { max-width: 1040px; margin: 12px auto; display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 16px; min-width: 0; }
.card.wide { grid-column: 1 / -1; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; }
dt { color: var(--muted); } dd { margin: 0; }
.pill { display: inline-block; padding: 1px 10px; border-radius: 999px; font-size: 13px; border: 1px solid currentColor; }
.pill.connected { color: var(--ok); } .pill.unpaired, .pill.disconnected { color: var(--err); }
button { font: inherit; border: 0; border-radius: 8px; padding: 8px 16px; background: var(--accent); color: var(--accent-fg); cursor: pointer; }
button:disabled { opacity: .6; cursor: default; }
label { display: block; margin-bottom: 10px; color: var(--muted); font-size: 14px; }
input, textarea { display: block; width: 100%; margin-top: 4px; font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.accounts { display: contents; }
.tag { font-size: 12px; font-weight: normal; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 0 8px; vertical-align: middle; }
.account .pair-idle, .account .pair-wait { margin-top: 12px; }
select { display: block; width: 100%; margin-top: 4px; font: inherit; color: var(--fg); background: var(--bg);
  border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.qr { display: block; width: 264px; max-width: 100%; height: auto; background: #fff; border-radius: 8px; padding: 4px; }
.ok { color: var(--ok); } .err { color: var(--err); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td.error { white-space: normal; color: var(--err); min-width: 160px; }
td.id { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--muted); }
.st { font-weight: 600; }
.st-queued { color: var(--st-queued); } .st-sent { color: var(--st-sent); } .st-delivered { color: var(--st-delivered); }
.st-read { color: var(--st-read); } .st-failed { color: var(--st-failed); } .st-unknown { color: var(--st-unknown); }
.spacer { flex: 1; }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); padding: 6px 12px; }
button.link { background: none; border: 0; padding: 0; color: var(--accent); text-decoration: underline; cursor: pointer; font-size: 14px; }
.auth { max-width: 420px; margin: 24px auto; }