:root {
  --bg: #0f1115;
  --surface: #181b22;
  --line: #2a2f3a;
  --text: #e8eaf0;
  --muted: #9aa1b1;
  --accent: #5b8cff;
  --speaking: #3ecf8e;
  --danger: #e5484d;
  color-scheme: dark;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--text); }
.bar { display: flex; gap: 12px; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); }
.tag { color: var(--muted); font-size: 13px; }
.status { margin-left: auto; font-size: 13px; color: var(--muted); }
.join { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; padding: 24px 16px; }
.join label { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }
input, button { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
button { cursor: pointer; }
button[aria-pressed="false"] { opacity: 0.55; }
button.danger { border-color: var(--danger); color: var(--danger); }
.meeting { display: grid; grid-template-columns: 1fr 320px; grid-template-rows: 1fr auto; gap: 12px; padding: 12px 16px; height: calc(100vh - 45px); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); grid-auto-rows: minmax(150px, 1fr); gap: 8px; overflow: auto; }
.tile { position: relative; background: var(--surface); border: 2px solid transparent; border-radius: 10px; overflow: hidden; }
.tile.speaking { border-color: var(--speaking); }
.tile.screen { grid-column: span 2; grid-row: span 2; }
.tile video { width: 100%; height: 100%; object-fit: cover; background: #000; }
.tile.screen video { object-fit: contain; }
.tile .label { position: absolute; left: 8px; bottom: 8px; padding: 2px 8px; font-size: 12px; background: rgb(0 0 0 / 0.6); border-radius: 6px; }
.side { display: grid; grid-template-rows: auto auto 1fr; gap: 12px; min-height: 0; }
.lobby { margin: 24px 16px; padding: 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
#waiting li { display: flex; gap: 6px; align-items: center; }
#waiting li span { flex: 1; }
#invite-link { margin-top: 6px; width: 100%; font-size: 12px; }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 10px; min-height: 0; display: flex; flex-direction: column; }
.panel h2 { margin: 0 0 8px; font-size: 13px; color: var(--muted); font-weight: 600; }
.captions, .messages { list-style: none; margin: 0; padding: 0; overflow: auto; font-size: 13px; display: grid; gap: 6px; align-content: start; }
.captions { max-height: 30vh; }
.captions .interim { color: var(--muted); font-style: italic; }
.who { color: var(--accent); font-weight: 600; margin-right: 6px; }
.chat { min-height: 0; }
.chat .messages { flex: 1; }
#chat-form { display: flex; gap: 6px; margin-top: 8px; }
#chat-form input { flex: 1; min-width: 0; }
.toolbar { grid-column: 1 / -1; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
@media (max-width: 760px) {
  .meeting { grid-template-columns: 1fr; height: auto; }
  .tile.screen { grid-column: auto; grid-row: auto; }
}