:root {
  --bg: #f3f4f6; --panel: #ffffff; --text: #111827; --muted: #4b5563; --line: #d1d5db;
  --go: #15803d; --go-text: #ffffff; --stop: #dc2626; --busy: #b45309; --off: #9ca3af;
  --cam: #1d4ed8; --video: #000000; --surface-2: #e8ebf0; --accent: #2563eb;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115; --panel: #1a1d23; --text: #f3f4f6; --muted: #a1a7b0; --line: #333944;
    --go: #16a34a; --stop: #ef4444; --busy: #f59e0b; --off: #6b7280; --cam: #3b82f6; --surface-2: #232a35; --accent: #3b82f6;
  }
}
:root[data-theme="dark"] {
  --bg: #0f1115; --panel: #1a1d23; --text: #f3f4f6; --muted: #a1a7b0; --line: #333944;
  --go: #16a34a; --stop: #ef4444; --busy: #f59e0b; --off: #6b7280; --cam: #3b82f6; --surface-2: #232a35; --accent: #3b82f6;
}
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 18px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
}
[hidden] { display: none !important; }
button {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 14px; border: 2px solid var(--line);
  background: var(--panel); color: var(--text); padding: 14px 22px; min-height: 56px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
}
button:disabled { opacity: .45; cursor: default; }
button.go { background: var(--go); border-color: var(--go); color: var(--go-text); }
button.stop { background: var(--stop); border-color: var(--stop); color: #fff; }
button svg { width: 26px; height: 26px; flex: none; }
input {
  font: inherit; width: 100%; padding: 14px 16px; border-radius: 12px; border: 2px solid var(--line);
  background: var(--bg); color: var(--text);
}
.center { min-height: 100%; display: grid; place-items: center; padding: 16px; text-align: center; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 24px; width: min(420px, 100%); }
.card h1 { margin: 0 0 16px; font-size: 26px; }
.card form { display: grid; gap: 14px; }
.error { color: var(--stop); min-height: 1.4em; margin: 0; }
.muted { color: var(--muted); }
.pill { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; }
.pill::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: currentColor; }
.pill.ready { color: var(--go); } .pill.busy { color: var(--busy); }
.pill.off { color: var(--off); } .pill.cam { color: var(--cam); }

/* ---- app bar: the same top bar on every head office page ---- */
.appbar { display: flex; align-items: center; gap: 12px; min-height: 60px; padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 700; white-space: nowrap; letter-spacing: -.01em; }
.logo { width: 34px; height: 34px; flex: none; border-radius: 10px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, #2563eb, #16a34a); }
.logo svg { width: 20px; height: 20px; }
.tabs { display: flex; gap: 2px; margin-left: 10px; }
.tabs a, .tabs button {
  min-height: 36px; padding: 6px 14px; border: 0; border-radius: 9px; background: transparent; color: var(--muted);
  font-size: 15px; font-weight: 600; text-decoration: none; display: inline-flex; align-items: center;
}
.tabs a:hover, .tabs button:hover { color: var(--text); background: color-mix(in srgb, var(--surface-2) 50%, transparent); }
.tabs .on, .tabs .on:hover { background: var(--surface-2); color: var(--text); }
.grow { flex: 1; }
.appbar .go { min-height: 40px; padding: 6px 16px; font-size: 15px; border-radius: 10px; gap: 8px; }
.appbar .go svg { width: 20px; height: 20px; }
.who { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); white-space: nowrap; }
.who:empty { display: none; }
.who::before {
  content: attr(data-i); width: 32px; height: 32px; border-radius: 50%; display: grid; place-items: center;
  background: var(--surface-2); color: var(--text); font-weight: 700; font-size: 14px;
}
.ghost { min-height: 36px; padding: 6px 12px; font-size: 14px; border-radius: 9px; background: transparent; border: 1px solid var(--line); color: var(--muted); }
.ghost:hover { color: var(--text); border-color: var(--muted); }
@media (max-width: 900px) { .brand b { display: none; } .tabs { margin-left: 0; } }
@media (max-width: 700px) {
  .appbar { gap: 8px; padding: 8px 10px; flex-wrap: wrap; }
  .tabs a, .tabs button { padding: 6px 10px; font-size: 14px; }
  .appbar .go { padding: 6px 12px; font-size: 14px; }
  .who { display: none; }
}

/* Automatic quality chip (netq.js): shown only while the app is holding video quality back to keep
   a weak connection working. It is information, not a control; there is nothing to set. */
.netq {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  font-size: 13px; font-weight: 600; padding: 4px 10px; border-radius: 9px;
  background: color-mix(in srgb, var(--busy) 16%, transparent);
  color: var(--busy); border: 1px solid color-mix(in srgb, var(--busy) 40%, transparent);
}
.netq::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex: none; }
.netq.audio { background: color-mix(in srgb, var(--stop) 16%, transparent); color: var(--stop); border-color: color-mix(in srgb, var(--stop) 40%, transparent); }
/* On the dark call screen the chip sits on video, so it needs its own backing. */
.full .netq { background: rgba(0, 0, 0, .45); color: #fcd34d; border-color: rgba(252, 211, 77, .45); }
.full .netq.audio { color: #fca5a5; border-color: rgba(252, 165, 165, .45); }