:root {
  --bg: #0b1020;
  --panel: #121933;
  --panel-2: #182447;
  --text: #e8eefc;
  --muted: #9fb0d9;
  --primary: #4f8cff;
  --danger: #ff5d7a;
  --success: #35d39a;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

html[data-theme="light"] {
  --bg: #f4f7ff;
  --panel: #ffffff;
  --panel-2: #eef3ff;
  --text: #10182f;
  --muted: #5b6b8c;
  --primary: #2f6bff;
  --danger: #d63b57;
  --success: #0f9d74;
  --border: rgba(16, 24, 47, 0.08);
  --shadow: 0 18px 40px rgba(16, 24, 47, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: radial-gradient(circle at top, #182447 0%, var(--bg) 45%);
  color: var(--text);
}

.app-shell { display: grid; grid-template-columns: 280px 1fr; min-height: 100vh; }
.sidebar {
  background: linear-gradient(180deg, var(--panel) 0%, #0d1428 100%);
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.brand { display: flex; gap: 14px; align-items: center; }
.brand-mark {
  width: 48px; height: 48px; border-radius: 14px;
  display: grid; place-items: center; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), #7b5cff);
}
.brand h1 { margin: 0; font-size: 1.1rem; }
.brand p { margin: 4px 0 0; color: var(--muted); font-size: 0.85rem; }
.live.online { color: var(--success); }
.live.offline { color: var(--danger); }

#nav { display: flex; flex-direction: column; gap: 8px; overflow: auto; }
#nav button {
  background: transparent; color: var(--text); border: 1px solid transparent;
  text-align: left; padding: 10px 12px; border-radius: 12px; cursor: pointer;
}
#nav button.active, #nav button:hover { background: var(--panel-2); border-color: var(--border); }

.sidebar-footer { margin-top: auto; display: grid; gap: 8px; }
.sidebar-footer button, .topbar-actions button, .login-panel button {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 10px 14px; border-radius: 12px; cursor: pointer;
}
button.primary { background: var(--primary); border-color: transparent; color: white; }
button.danger { background: rgba(255, 93, 122, 0.12); color: var(--danger); }

.content { padding: 24px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 18px; }
.topbar h2 { margin: 0 0 6px; }
.topbar p { margin: 0; color: var(--muted); }
.topbar-actions { display: flex; gap: 10px; }

.panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.login-panel { max-width: 420px; }
.login-panel label { display: grid; gap: 8px; margin-bottom: 14px; }
.login-panel input {
  padding: 12px 14px; border-radius: 12px; border: 1px solid var(--border);
  background: var(--panel-2); color: var(--text);
}

.hidden { display: none !important; }
.error { color: var(--danger); }
.section { display: none; }
.active-section { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; margin-bottom: 18px; }
.card, .detail-grid > div {
  background: var(--panel-2); border: 1px solid var(--border); border-radius: 16px; padding: 16px;
}
.card h4, .detail-grid h4 { margin: 0 0 8px; }
.card p, .detail-grid p { margin: 0; color: var(--muted); word-break: break-word; }

.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--border); text-align: left; }
th { color: var(--muted); font-size: 0.85rem; }

.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.unavailable {
  padding: 18px; border-radius: 16px; border: 1px dashed var(--border); color: var(--muted);
  background: rgba(255,255,255,0.02);
}
.map-frame { width: 100%; height: 420px; border: 0; border-radius: 16px; margin-top: 16px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.toolbar button, td button {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 8px 12px; border-radius: 10px; cursor: pointer;
}
.hint { color: var(--muted); }
.perm-on { color: var(--success); font-weight: 700; }
.perm-off { color: var(--danger); font-weight: 700; }
.banner-error { color: var(--danger); font-weight: 600; }
.live-frame {
  width: 100%; max-height: 70vh; object-fit: contain; border-radius: 16px;
  background: #000; border: 1px solid var(--border);
}
.live-frame.interactive {
  cursor: crosshair;
  touch-action: none;
  user-select: none;
}
.screen-stage { max-width: 420px; }
.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 12px;
}
.media-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.media-card img, .media-thumb {
  width: 100%;
  height: 120px;
  object-fit: cover;
  background: #111;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.8rem;
}
.media-card .meta { padding: 10px; }
.media-card .meta p { margin: 0 0 8px; font-size: 0.82rem; }
.media-card button { width: 100%; }
.remote-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.remote-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
}
.remote-card h3 { margin: 0 0 12px; }
.remote-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.remote-card-head h3 { margin: 0; }
.badge {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 999px;
}
.badge.on { background: rgba(53, 211, 154, 0.16); color: var(--success); }
.badge.off { background: rgba(255, 93, 122, 0.14); color: var(--danger); }
.camera-stage {
  position: relative;
  width: min(100%, 360px);
  aspect-ratio: 3 / 4;
  margin-bottom: 12px;
  border-radius: 16px;
  overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
}
.camera-stage .live-frame {
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: cover;
  border: 0;
  border-radius: 0;
}
.media-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: radial-gradient(circle at center, #1a2748 0%, #000 70%);
}
.media-placeholder.hidden { display: none !important; }
.mic-meter {
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  margin-bottom: 12px;
  overflow: hidden;
}
.mic-meter span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--success);
  transition: width 0.12s linear;
}
@media (min-width: 1100px) {
  .remote-grid { grid-template-columns: 1fr 1fr; }
  .remote-grid .remote-card:first-child { grid-column: 1 / -1; }
}
.type-row input {
  flex: 1;
  min-width: 180px;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
}

@media (max-width: 960px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { position: sticky; top: 0; z-index: 2; }
}