:root {
  --bg: #0f1115;
  --panel: #1a1d24;
  --fg: #e6e9ef;
  --muted: #8b93a3;
  --accent: #4f8cff;
  --ok: #3ecf8e;
  --warn: #ffb454;
  --err: #ff6b6b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
}
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px; border-bottom: 1px solid #262a33;
}
h1 { font-size: 18px; margin: 0; }
.tag {
  font-size: 11px; background: var(--accent); color: #fff;
  padding: 2px 6px; border-radius: 4px; vertical-align: middle;
}
.status { font-size: 13px; color: var(--muted); }
.status.ok { color: var(--ok); }
.status.warn { color: var(--warn); }
.status.err { color: var(--err); }

main { max-width: 1000px; margin: 0 auto; padding: 16px 20px; }

.videos { position: relative; background: #000; border-radius: 10px; overflow: hidden; aspect-ratio: 16/9; }
.videos video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.video-wrap.self {
  position: absolute; right: 12px; bottom: 12px; width: 24%;
  border: 2px solid #2a2f3a; border-radius: 8px; overflow: hidden; aspect-ratio: 16/9;
}
.label {
  position: absolute; left: 8px; bottom: 6px; font-size: 12px;
  background: rgba(0,0,0,.55); padding: 2px 6px; border-radius: 4px;
}
.video-wrap.self .label { left: 4px; bottom: 2px; }

.controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin: 14px 0; }
.controls button {
  background: var(--panel); color: var(--fg); border: 1px solid #2a2f3a;
  padding: 8px 12px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.controls button:disabled { opacity: .45; cursor: not-allowed; }
.controls button:not(:disabled):hover { border-color: var(--accent); }
.controls .force { font-size: 12px; color: var(--muted); margin-left: auto; }

.chat { margin: 8px 0 16px; }
.chat-log {
  height: 140px; overflow-y: auto; background: var(--panel);
  border: 1px solid #2a2f3a; border-radius: 8px; padding: 8px; font-size: 13px;
}
.chat-log .me { color: var(--accent); }
.chat-log .them { color: var(--ok); }
.chat-log .sys { color: var(--muted); font-style: italic; }
.chat-form { display: flex; gap: 8px; margin-top: 8px; }
.chat-form input { flex: 1; background: var(--panel); border: 1px solid #2a2f3a; color: var(--fg); border-radius: 8px; padding: 8px; }
.chat-form button { background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 8px 14px; cursor: pointer; }

.diag h2 { font-size: 13px; color: var(--muted); margin: 8px 0; }
.diag ul { list-style: none; padding: 0; margin: 0; font-size: 12px; color: var(--muted); font-family: ui-monospace, monospace; }
.diag li { padding: 2px 0; border-bottom: 1px dashed #20242c; }
.diag .relay { color: var(--warn); }
.diag .direct { color: var(--ok); }