* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}
.admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}
.sidebar {
  background: #0b1220;
  border-right: 1px solid #1f2937;
  padding: 18px;
}
.brand {
  display: grid;
  gap: 4px;
  margin-bottom: 20px;
}
.brand strong { font-size: 20px; }
.brand span { color: #94a3b8; font-size: 13px; }
.workspace {
  padding: 20px;
  min-width: 0;
}
.bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.bar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
h1 { margin: 0; font-size: 22px; }
h2 { margin-top: 0; font-size: 17px; }
#meta { margin: 6px 0 0; color: #94a3b8; font-size: 13px; }
.badge {
  background: #334155;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}
.panel {
  margin-top: 14px;
  padding: 14px;
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 8px;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}
.panel-header p {
  margin: -8px 0 0;
  color: #94a3b8;
  font-size: 13px;
}
.login-panel {
  max-width: 440px;
}
label {
  display: grid;
  gap: 7px;
  margin-bottom: 12px;
  color: #cbd5e1;
  font-size: 13px;
}
input {
  width: 100%;
  border: 1px solid #334155;
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 8px;
  padding: 13px 12px;
}
.primary,
.ghost {
  border: 0;
  border-radius: 8px;
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.primary {
  width: 100%;
  padding: 14px 16px;
  background: #2563eb;
}
.primary.small {
  width: auto;
  padding: 10px 14px;
}
.ghost {
  padding: 9px 12px;
  background: #334155;
}
.error {
  min-height: 18px;
  margin: 10px 0 0;
  color: #fca5a5;
  font-size: 13px;
}
.hidden { display: none !important; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}
.stat {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 8px;
  padding: 14px;
}
.stat span {
  display: block;
  color: #94a3b8;
  font-size: 12px;
}
.stat strong {
  display: block;
  margin-top: 8px;
  font-size: 24px;
}
.client-menu {
  display: grid;
  gap: 8px;
}
.client-item {
  width: 100%;
  border: 1px solid #1f2937;
  border-radius: 8px;
  background: #111827;
  color: #e2e8f0;
  text-align: left;
  padding: 12px;
  cursor: pointer;
}
.client-item.active {
  background: #1d4ed8;
  border-color: #60a5fa;
}
.client-item strong,
.client-item span {
  display: block;
}
.client-item span {
  margin-top: 4px;
  color: #cbd5e1;
  font-size: 12px;
}
.channel-list,
.recording-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}
.channel-card,
.recording-card {
  gap: 10px;
  padding: 12px;
  border: 1px solid #243044;
  border-radius: 8px;
  background: #0f172a;
}
.channel-card {
  display: grid;
}
.channel-card.global-channel {
  border-color: #2563eb;
  background: linear-gradient(135deg, #0f1f3f 0%, #0f172a 100%);
}
.section-separator {
  color: #93c5fd;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 8px 0 2px;
}
.recording-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 96px;
  align-items: start;
  gap: 14px;
}
.channel-top,
.recording-title {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}
.channel-top strong,
.recording-title strong {
  display: block;
  overflow-wrap: anywhere;
}
.channel-card small,
.recording-card small {
  display: block;
  color: #94a3b8;
  margin-top: 3px;
}
.recording-title span {
  flex: none;
  padding: 5px 8px;
  background: #1e293b;
  color: #cbd5e1;
  border-radius: 999px;
  font-size: 12px;
}
.recording-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 8px 0 10px;
  color: #94a3b8;
  font-size: 12px;
}
.recording-info audio {
  width: 100%;
  height: 40px;
}
.recording-actions {
  display: flex;
  justify-content: flex-end;
}
.recording-actions a,
.recording-actions button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 82px;
  height: 38px;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #111827;
  color: #93c5fd;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
}
.recording-actions button:disabled {
  opacity: .5;
  cursor: not-allowed;
}
.missing-audio {
  padding: 10px;
  border: 1px dashed #7f1d1d;
  border-radius: 8px;
  color: #fca5a5;
  background: #2a1111;
  font-size: 13px;
}
.subsection-title {
  color: #94a3b8;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.state-pill {
  flex: none;
  padding: 6px 9px;
  border-radius: 999px;
  background: #334155;
  color: #cbd5e1;
  font-size: 12px;
}
.state-pill.live {
  background: #7f1d1d;
  color: #fecaca;
}
.channel-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.channel-meta span {
  padding: 5px 8px;
  border-radius: 999px;
  background: #1e293b;
  color: #cbd5e1;
  font-size: 12px;
}
.radio-action {
  border: 0;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
  font-weight: 700;
  padding: 9px 12px;
}
.radio-action.active {
  background: #7f1d1d;
  color: #fecaca;
}
.admin-radio-frame {
  border-top: 1px solid #1f2937;
  padding-top: 12px;
}
.admin-radio-frame iframe {
  display: block;
  width: 100%;
  height: 430px;
  border: 1px solid #243044;
  border-radius: 8px;
  background: #0f172a;
}
.channel-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.channel-card li {
  padding: 7px 0;
  border-top: 1px solid #1f2937;
}
.channel-card li span {
  color: #94a3b8;
  margin-left: 6px;
}
.empty {
  color: #94a3b8;
  padding: 12px;
  border: 1px dashed #334155;
  border-radius: 8px;
}
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: #94a3b8;
  font-size: 13px;
}
.pagination div {
  display: flex;
  gap: 8px;
}
.pagination button {
  border: 1px solid #334155;
  border-radius: 8px;
  background: #111827;
  color: #e2e8f0;
  padding: 9px 12px;
  cursor: pointer;
}
.pagination button:disabled {
  opacity: .45;
  cursor: not-allowed;
}
.ptt {
  width: 100%;
  padding: 16px;
  border: 0;
  border-radius: 8px;
  background: #6b7280;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.ptt:disabled {
  opacity: .6;
}
.ptt.talking {
  background: #16a34a;
}
.ptt.listening {
  background: #dc2626;
}
.hint {
  margin: 10px 0 0;
  color: #94a3b8;
  font-size: 13px;
}
#participants {
  list-style: none;
  margin: 0;
  padding: 0;
}
#participants li {
  padding: 8px 10px;
  border-bottom: 1px solid #1f2937;
  font-size: 14px;
}
#participants li:last-child { border-bottom: 0; }

@media (max-width: 840px) {
  .admin-shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    border-right: 0;
    border-bottom: 1px solid #1f2937;
  }
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .recording-card {
    grid-template-columns: 1fr;
  }
  .recording-actions {
    justify-content: flex-start;
  }
}