:root {
  color-scheme: light dark;
  --bg: #f6f6f4;
  --fg: #16181d;
  --muted: #5d6470;
  --card: #ffffff;
  --line: #d9dbe0;
  --accent: #2f6f4f;
  --danger: #a3372b;
  --ok: #3f9d6b;
  --warn: #c98a26;
  --off: #9aa0aa;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --fg: #e6e8ec;
    --muted: #9aa0aa;
    --card: #1c1f25;
    --line: #2c3038;
    --accent: #6fd0a0;
    --danger: #e08277;
    --ok: #6fd0a0;
    --warn: #e0b45f;
    --off: #6b7280;
  }
}

* {
  box-sizing: border-box;
}

/* The UA rule for `hidden` is a bare `display: none`, which any author `display`
   below — `.row`, `.topbar` — outranks, leaving a hidden element on screen. */
[hidden] {
  display: none !important;
}

body {
  margin: 0 auto;
  padding: 0 16px 48px;
  max-width: 44rem;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui,
    sans-serif;
}

h1,
h2 {
  font-size: 1.1rem;
  margin: 0 0 8px;
}

.muted {
  color: var(--muted);
  font-size: 0.85rem;
}

.error {
  color: var(--danger);
  font-size: 0.85rem;
}

.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
}

.banners:empty {
  display: none;
}

.banner {
  margin: 8px 0;
  padding: 8px 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 0.85rem;
}

.banner[data-kind="error"] {
  border-color: var(--danger);
  color: var(--danger);
}

.banner p {
  margin: 0 0 6px;
}

.banner p:last-child {
  margin-bottom: 0;
}

.banner button {
  vertical-align: baseline;
}

button.link {
  padding: 0 2px;
  border: 0;
  background: none;
  color: var(--accent);
  font-size: 0.85rem;
  text-decoration: underline;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.device-name {
  font-weight: 600;
}

.relay {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.85rem;
}

.dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--off);
  flex: none;
}

.dot[data-state="connected"] {
  background: var(--ok);
}

.dot[data-state="connecting"],
.dot[data-state="reconnecting"] {
  background: var(--warn);
}

.dot[data-state="refused"],
.dot[data-state="error"],
.dot[data-state="duplicate"] {
  background: var(--danger);
}

.card {
  margin: 24px 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
}

label {
  display: block;
  margin: 12px 0 4px;
  font-size: 0.8rem;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--bg);
  color: inherit;
  font: inherit;
}

textarea {
  resize: vertical;
}

.row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

button {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  color: inherit;
  font: inherit;
  cursor: pointer;
}

button:hover:not(:disabled) {
  border-color: var(--muted);
}

button:disabled {
  opacity: 0.5;
  cursor: default;
}

button.primary {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

.peers {
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.peer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.peer {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  font-size: 0.85rem;
}

.peer .state {
  color: var(--muted);
  font-size: 0.75rem;
}

.peer button {
  padding: 0 4px;
  border: 0;
  background: none;
  color: var(--muted);
  font-size: 0.75rem;
}

.composer {
  padding: 12px 0;
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
}

.msg {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.msg-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--muted);
}

.msg-head .who {
  font-weight: 600;
  color: var(--fg);
}

.msg-body {
  margin: 4px 0 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.msg-foot {
  margin-top: 4px;
  font-size: 0.75rem;
  color: var(--muted);
}

a {
  color: var(--accent);
}

dialog.pair {
  width: min(32rem, 92vw);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--fg);
  padding: 16px;
}

dialog.pair::backdrop {
  background: rgb(0 0 0 / 45%);
}

.fingerprints {
  margin: 8px 0;
}

.fingerprints dt {
  font-size: 0.8rem;
  color: var(--muted);
}

.fingerprints dd {
  margin: 0 0 8px;
}