:root {
  color-scheme: dark;
  --bg: #0b1020;
  --panel: #141b2d;
  --line: #27314b;
  --text: #edf2ff;
  --muted: #91a0bf;
  --accent: #6ee7c7;
  --accent-dark: #092a25;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0; min-height: 100vh; color: var(--text);
  background: radial-gradient(circle at 15% 0%, #183252 0, transparent 32rem), var(--bg);
}
main { width: min(1050px, calc(100% - 2rem)); margin: 0 auto; padding: 3rem 0; }
header, .row, .section-title { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
h1 { margin: .1rem 0 1.7rem; font-size: clamp(2.3rem, 6vw, 4.4rem); letter-spacing: -.06em; }
h2 { margin: 0; font-size: 1rem; }
.eyebrow { color: var(--accent); font: 700 .72rem ui-monospace, monospace; letter-spacing: .18em; }
.badge { padding: .45rem .75rem; border: 1px solid; border-radius: 99px; font-size: .78rem; }
.badge.online { color: var(--accent); background: var(--accent-dark); }
.badge.offline { color: #fda4af; background: #32131b; }
.card { background: color-mix(in srgb, var(--panel) 92%, transparent); border: 1px solid var(--line); border-radius: 16px; padding: 1.25rem; box-shadow: 0 18px 50px #0003; }
.identity { margin-bottom: 1rem; }
label { display: block; color: var(--muted); font-size: .78rem; margin-bottom: .45rem; }
input, button { border-radius: 9px; border: 1px solid var(--line); font: inherit; }
input { width: 100%; padding: .72rem .85rem; color: var(--text); background: #0d1425; outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px #6ee7c722; }
button { padding: .7rem 1rem; color: #071713; background: var(--accent); font-weight: 700; cursor: pointer; }
button:disabled { opacity: .42; cursor: not-allowed; }
button.ghost { color: var(--muted); background: transparent; }
button.danger { color: #fecdd3; background: #421723; border-color: #7f1d32; }
small, .muted, .footnote { color: var(--muted); }
small { display: block; margin-top: .65rem; }
code { color: #c8d4ee; }
.columns { display: grid; grid-template-columns: minmax(230px, .7fr) minmax(0, 1.5fr); gap: 1rem; }
.metadata-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
.metadata-card { display: flex; flex-direction: column; align-items: stretch; gap: .85rem; }
media-connection-data { grid-column: 1 / -1; }
.metadata-card h2 { min-height: 1.2rem; }
.metadata-output:empty { display: none; }
.metadata-output { overflow-x: auto; }
.metadata-output table { width: 100%; border-collapse: collapse; font-size: .78rem; }
.metadata-output th, .metadata-output td { padding: .48rem .35rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.metadata-output th { width: 42%; color: var(--muted); font-weight: 500; text-align: left; }
.metadata-output td { overflow-wrap: anywhere; text-align: right; }
.metadata-error { margin: 0; font-size: .78rem; }
button.metadata-trigger { align-self: flex-start; margin-top: auto; padding: .38rem .68rem; font-size: .72rem; }
.section-title { min-height: 2.2rem; }
#peer-count { min-width: 1.7rem; padding: .15rem .45rem; text-align: center; background: #26304a; border-radius: 99px; font-size: .75rem; }
#peers { list-style: none; margin: 1rem 0 0; padding: 0; }
#peers button { width: 100%; margin: .3rem 0; text-align: left; color: var(--text); background: #11192a; }
#peers button:hover, #peers button.selected { border-color: var(--accent); background: var(--accent-dark); }
.chat-card { min-height: 420px; display: flex; flex-direction: column; }
.media-panel { margin-top: 1rem; }
.video-stage {
  position: relative; min-height: 220px; overflow: hidden; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 12px; background: #080d18;
}
#remote-video { width: 100%; max-height: 420px; display: block; background: #080d18; }
#remote-placeholder { position: absolute; color: var(--muted); font-size: .82rem; }
#local-video {
  position: absolute; right: .75rem; bottom: .75rem; width: min(28%, 150px);
  aspect-ratio: 4 / 3; object-fit: cover; border: 1px solid #ffffff55;
  border-radius: 9px; background: #111827; box-shadow: 0 8px 24px #0008;
}
.media-controls { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .65rem; }
.media-controls button { padding: .5rem .7rem; font-size: .76rem; }
#media-status { min-height: 1.1em; margin: .5rem 0 0; font-size: .75rem; }
#rtc-status { margin: .25rem 0 0; font-size: .8rem; }
#messages { flex: 1; overflow: auto; list-style: none; padding: 1rem 0; margin: 0; }
#messages li { max-width: 80%; width: fit-content; margin: .55rem 0; padding: .62rem .8rem; background: #222c43; border-radius: 4px 12px 12px; overflow-wrap: anywhere; }
#messages li.mine { margin-left: auto; background: #165145; border-radius: 12px 4px 12px 12px; }
#messages small { margin: .3rem 0 0; font-size: .65rem; }
#message-form { display: flex; gap: .6rem; }
.footnote { text-align: center; font-size: .72rem; margin-top: 1rem; }
@media (max-width: 700px) {
  main { padding-top: 1.5rem; }
  .columns, .metadata-columns { grid-template-columns: 1fr; }
  .chat-card { min-height: 390px; }
  media-connection-data { grid-column: auto; }
}