:root {
  --bg: #0b1220;
  --card: #111827;
  --card2: #172033;
  --text: #f8fafc;
  --muted: #a8b3c7;
  --line: #263247;
  --primary: #22c55e;
  --primary-text: #06120a;
  --danger: #ef4444;
  --warning: #f59e0b;
  --shadow: 0 20px 70px rgba(0,0,0,.35);
}

body.light {
  --bg: #f3f6fb;
  --card: #ffffff;
  --card2: #eef3f9;
  --text: #0f172a;
  --muted: #526070;
  --line: #d8e0ec;
  --primary: #16a34a;
  --primary-text: #ffffff;
  --danger: #dc2626;
  --warning: #d97706;
  --shadow: 0 20px 70px rgba(15, 23, 42, .12);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, color-mix(in srgb, var(--card2) 55%, transparent), var(--bg));
  color: var(--text);
}

.app {
  width: min(560px, 100%);
  margin: 0 auto;
  padding: 22px 16px 36px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1, h2, p { margin: 0; }
h1 { font-size: clamp(30px, 8vw, 44px); line-height: .95; }
h2 { margin-bottom: 18px; font-size: 23px; }
.topbar p, .hint, .label { color: var(--muted); }
.topbar p { margin-top: 4px; }

.card {
  background: color-mix(in srgb, var(--card) 94%, transparent);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.hidden { display: none !important; }

label {
  display: block;
  margin: 16px 0 8px;
  font-weight: 800;
}

input, select, button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  font: inherit;
  font-size: 19px;
}

input, select {
  color: var(--text);
  background: color-mix(in srgb, var(--bg) 78%, var(--card));
  padding: 18px 17px;
}

button {
  cursor: pointer;
  min-height: 62px;
  padding: 16px 18px;
  font-weight: 900;
  transition: transform .08s ease, opacity .15s ease;
}
button:active { transform: scale(.985); }
button:disabled { opacity: .55; cursor: wait; }

.primary { margin-top: 18px; background: var(--primary); color: var(--primary-text); border-color: transparent; }
.secondary { background: var(--card2); color: var(--text); }
.danger { background: var(--danger); color: white; border-color: transparent; }
.icon-btn { width: 58px; min-height: 58px; border-radius: 18px; background: var(--card2); color: var(--text); }

.hint { margin-top: 14px; line-height: 1.35; }
.status-row { display: flex; justify-content: space-between; gap: 14px; align-items: center; margin-bottom: 16px; }
.label { display: block; font-size: 13px; text-transform: uppercase; letter-spacing: .08em; font-weight: 900; }
.pill { padding: 9px 12px; border-radius: 999px; background: var(--card2); color: var(--muted); font-weight: 900; white-space: nowrap; }
.pill.ok { color: #22c55e; }
.pill.warn { color: var(--warning); }


.big-state.speaking { outline: 3px solid var(--primary); }

.controls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 22px; }
.users { display: grid; gap: 10px; list-style: none; padding: 0; margin: 0; }
.user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--card2) 72%, var(--bg));
}
.user.speaking { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 25%, transparent); }
.badge { color: var(--muted); font-weight: 900; white-space: nowrap; }
.user.speaking .badge { color: var(--primary); }
#countLabel { color: var(--muted); font-size: 16px; }
.error-card { border-color: color-mix(in srgb, var(--danger) 60%, var(--line)); }

@media (max-width: 460px) {
  .app { padding: 16px 12px 26px; }
  .card { padding: 18px; border-radius: 22px; }
  .controls { grid-template-columns: 1fr; }
}


.top-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.install-btn {
  border: 0;
  border-radius: 999px;
  padding: 0.65rem 0.9rem;
  font-weight: 800;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  color: white;
  cursor: pointer;
}

.room-counts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin: 0.9rem 0 1rem;
}

.room-counts span {
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 0.85rem;
  padding: 0.7rem 0.5rem;
  text-align: center;
  font-size: 0.9rem;
  background: rgba(15, 23, 42, 0.35);
}

.room-counts strong {
  display: block;
  font-size: 1.25rem;
  margin-top: 0.15rem;
}

.room-counts .urgent {
  border-color: rgba(239, 68, 68, 0.45);
}

.session-info {
  margin: 0.8rem 0 0.3rem;
  padding: 0.65rem 0.8rem;
  border-radius: 0.85rem;
  background: rgba(15, 23, 42, 0.35);
  border: 1px solid rgba(148, 163, 184, 0.20);
  font-size: 0.95rem;
}

.event-notice {
  margin: 0.75rem 0;
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(96, 165, 250, 0.35);
  font-weight: 800;
}

.event-notice.urgent {
  background: rgba(239, 68, 68, 0.22);
  border-color: rgba(248, 113, 113, 0.5);
}

.hidden {
  display: none !important;
}

body.light .room-counts span,
body.light .session-info {
  background: rgba(241, 245, 249, 0.8);
  border-color: rgba(15, 23, 42, 0.12);
}

body.light .event-notice {
  background: rgba(219, 234, 254, 0.95);
  border-color: rgba(59, 130, 246, 0.30);
}

body.light .event-notice.urgent {
  background: rgba(254, 226, 226, 0.95);
  border-color: rgba(239, 68, 68, 0.35);
}

@media (max-width: 420px) {
  .room-counts {
    grid-template-columns: 1fr;
  }

  .top-actions {
    flex-direction: column-reverse;
    align-items: flex-end;
  }
}




.network-card {
  margin: 0.75rem 0;
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(15, 23, 42, 0.35);
  display: grid;
  gap: 0.25rem;
}

.network-card span {
  font-weight: 900;
}

.network-card small {
  opacity: 0.75;
}

body.light .network-card {
  background: rgba(241, 245, 249, 0.9);
  border-color: rgba(15, 23, 42, 0.12);
}




.network-card{
display:flex;
justify-content:center;
align-items:center;
gap:18px;
font-size:1rem;
font-weight:700;
padding:12px;
}

#networkLabel,#latencyLabel{
display:inline-block;
}



.user strong{
font-size:1.1rem;
}

button{
min-height:56px;
}

.danger{
font-weight:800;
}



body.light