:root {
  --bg: #0f1216; --card: #191e26; --fg: #e8ecf1; --muted: #8a93a0;
  --accent: #6ac065; --danger: #ff7674; --line: #2a313c;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.4 system-ui, sans-serif;
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
#app { width: 100%; max-width: 440px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.hidden { display: none !important; }
h1 { margin: 0 0 16px; font-size: 24px; }
label { display: block; margin-bottom: 12px; color: var(--muted); font-size: 13px; }
input {
  width: 100%; margin-top: 4px; padding: 11px 12px; border-radius: 9px;
  border: 1px solid var(--line); background: #0f1319; color: var(--fg); font-size: 16px;
}
.roomid { text-transform: uppercase; letter-spacing: 3px; text-align: center; font-weight: 700; }
button {
  padding: 11px 14px; border-radius: 9px; border: 1px solid var(--line);
  background: #222833; color: var(--fg); font-size: 15px; cursor: pointer;
}
button.primary { background: var(--accent); color: #06220a; border-color: transparent; font-weight: 600; }
button.ghost { background: transparent; }
button:disabled { opacity: .5; cursor: default; }
.sep { text-align: center; color: var(--muted); margin: 14px 0; font-size: 13px; }
.row { display: flex; gap: 8px; }
.row input { flex: 1; }
.room-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.room-head strong { letter-spacing: 3px; }
#participants { list-style: none; margin: 0 0 16px; padding: 0; }
#participants li { display: flex; align-items: center; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.badge { margin-left: auto; font-size: 11px; padding: 3px 8px; border-radius: 20px; background: #2a313c; color: var(--muted); }
.badge.host { color: var(--accent); }
.badge.nekto { color: #e0a85a; }
.speaking { color: var(--accent); }
.muted { font-size: 11px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.dot.on { background: var(--accent); }
.controls { display: flex; gap: 8px; }
.controls button { flex: 1; }
.bridge .controls { flex-wrap: wrap; }
.bridge .controls button { flex: 1 1 calc(50% - 4px); min-width: 0; font-size: 14px; padding: 9px 8px; }
.note { color: var(--muted); font-size: 13px; margin: 12px 0 0; min-height: 18px; }
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin: 10px 0 0; }
.panel { border: 1px solid var(--line); border-radius: 10px; padding: 12px; margin-bottom: 12px; }
.panel-title { font-weight: 600; margin-bottom: 8px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
select { width: 100%; margin-top: 4px; padding: 9px; border-radius: 9px; border: 1px solid var(--line); background: #0f1319; color: var(--fg); font-size: 15px; }
fieldset { border: 0; margin: 0 0 12px; padding: 0; color: var(--muted); font-size: 13px; }
label.check { display: flex; align-items: center; gap: 6px; margin: 4px 0; color: var(--fg); }
label.check input { width: auto; margin: 0; }
.bridge p { margin: 6px 0; }
.bridge summary { display: flex; align-items: center; gap: 6px; cursor: pointer; list-style: none; }
.bridge summary::-webkit-details-marker { display: none; }
.bridge summary::before { content: ""; width: 7px; height: 10px; flex: none; background: var(--muted); clip-path: polygon(0 0, 100% 50%, 0 100%); transition: transform 120ms; }
.bridge[open] summary::before { transform: rotate(90deg); }
.bridge:not([open]) summary { margin-bottom: 0; }
.bridge .state { margin-left: auto; font-size: 12px; font-weight: 400; color: var(--muted); }
.bridge .state.alert { color: #e0a85a; }
.bridge a { color: var(--accent); }
button.hostAudio.off { border-color: var(--danger); color: var(--danger); }
.meter { display: inline-block; width: 56px; height: 6px; border-radius: 3px; background: var(--line); overflow: hidden; vertical-align: middle; }
.meter i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 90ms linear; }
#hostLinkQr { display: flex; justify-content: center; margin: 8px 0; }
#hostLinkQr img, #hostLinkQr canvas { background: #fff; padding: 8px; border-radius: 8px; }
#hostLinkText { font-size: 12px; margin-bottom: 8px; }
.rename { padding: 2px 8px; font-size: 13px; line-height: 1; }
.quality { font-size: 11px; color: #e0a85a; }
.quality.lost { color: var(--danger); }