:root {
  --bg: #0b1020;
  --card: #12183a;
  --border: #2a3255;
  --text: #e8ecff;
  --accent: #6e56cf;
  --accent-hover: #5a45b8;
  --success: #4ade80;
  --danger: #f87171;
  --wave: #6e56cf;
  --muted: #9ca3c1;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  background: radial-gradient(1200px 800px at 20% -10%, #1b2758, var(--bg));
  color: var(--text);
}

.container {
  width: min(1020px, 100% - 24px);
  margin: 18px auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

header {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}

h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.2;
}

.room-id {
  margin-top: 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.admin-badge {
  margin-top: 10px;
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, 0.35);
  border-radius: 999px;
  padding: 3px 9px;
}

.participants {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.participant {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 180px;
}

.participant.offline {
  opacity: 0.75;
}

.avatar {
  width: 72px;
  height: 72px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  display: grid;
  place-items: center;
  margin-bottom: 10px;
  position: relative;
}

.avatar svg {
  width: 34px;
  height: 34px;
  color: var(--text);
}

.mute-icon {
  position: absolute;
  bottom: -2px;
  right: -2px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: white;
  background: var(--danger);
  border: 2px solid var(--card);
}

.name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.status {
  font-size: 0.8rem;
  color: var(--muted);
}

.status.mic-on {
  color: var(--success);
}

.status.mic-off {
  color: var(--danger);
}

.wave-container {
  width: 100%;
  height: 42px;
  margin-top: 8px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
}

.wave-bar {
  width: 3px;
  background: var(--muted);
  border-radius: 2px;
  transition: height 0.08s ease;
}

.participant.speaking .wave-bar {
  background: var(--wave);
}

.quality-indicator {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.5);
}

.quality-good {
  color: #10b981;
}

.quality-fair {
  color: #f59e0b;
}

.quality-poor {
  color: #ef4444;
}

.room-input-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
}

input#room-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 12px;
  font-size: 1rem;
  margin-bottom: 12px;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

#join-btn,
button#start,
button#admin-refresh,
button#admin-copy-admin {
  background: var(--accent);
  color: white;
}

#join-btn:hover,
button#start:hover,
button#admin-refresh:hover,
button#admin-copy-admin:hover {
  background: var(--accent-hover);
}

.controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
}

.controls button {
  flex: 1;
}

button#mute-btn {
  background: var(--danger);
  color: white;
}

button#stop {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}

button#stop:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.mic-warning {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  padding: 12px;
  border-radius: 12px;
  font-size: 0.85rem;
  text-align: center;
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.system-banner {
  padding: 12px;
  border-radius: 12px;
  font-size: 0.85rem;
  text-align: center;
  border: 1px solid transparent;
}

.system-banner.info {
  background: rgba(59, 130, 246, 0.14);
  color: #93c5fd;
  border-color: rgba(59, 130, 246, 0.25);
}

.system-banner.warn {
  background: rgba(251, 191, 36, 0.14);
  color: #fcd34d;
  border-color: rgba(251, 191, 36, 0.25);
}

.system-banner.error {
  background: rgba(248, 113, 113, 0.14);
  color: #fca5a5;
  border-color: rgba(248, 113, 113, 0.25);
}

.hidden {
  display: none !important;
}

.admin-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.admin-toolbar-actions {
  display: flex;
  gap: 8px;
}

.admin-filters {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 8px;
}

.admin-input,
.admin-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  border-radius: 10px;
  font-size: 0.9rem;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(100px, 1fr));
  gap: 8px;
}

.admin-stat {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  text-align: center;
}

.admin-stat-value {
  font-size: 1.1rem;
  font-weight: 700;
}

.admin-stat-label {
  font-size: 0.75rem;
  color: var(--muted);
}

.admin-rooms {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.admin-room {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.admin-room-main {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.admin-room-head {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-pill {
  font-size: 0.72rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  color: var(--muted);
}

.admin-pill.live {
  color: var(--success);
  border-color: rgba(74, 222, 128, 0.35);
}

.admin-pill.full {
  color: #fbbf24;
  border-color: rgba(251, 191, 36, 0.35);
}

.admin-room-clients {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.admin-client-chip {
  font-family: monospace;
  font-size: 0.74rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 8px;
}

.admin-room-name {
  font-family: monospace;
  color: var(--accent);
}

.admin-room-meta {
  font-size: 0.8rem;
  color: var(--muted);
}

.admin-room-actions {
  display: flex;
  gap: 6px;
}

.admin-log {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  font-family: monospace;
  font-size: 0.78rem;
  padding: 10px;
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
}

.admin-log-line {
  display: grid;
  grid-template-columns: 72px 120px 1fr;
  gap: 8px;
  align-items: start;
  padding: 2px 0;
}

.admin-log-time,
.admin-log-type {
  color: var(--muted);
}

.admin-log-type {
  text-transform: uppercase;
}

.admin-empty {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 10px;
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

@media (max-width: 640px) {
  h1 {
    font-size: 1.4rem;
  }

  .participants {
    grid-template-columns: 1fr;
  }

  .controls {
    flex-direction: column;
  }

  button {
    width: 100%;
  }

  .admin-filters,
  .admin-stats,
  .admin-log-line {
    grid-template-columns: 1fr;
  }

  .admin-room {
    grid-template-columns: 1fr;
  }

  .admin-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .admin-toolbar-actions {
    width: 100%;
  }
}