:root {
  --bg: #0b1220;
  --card: #121a2b;
  --border: #243047;
  --text: #e8eef8;
  --muted: #93a0b5;
  --primary: #3b82f6;
  --danger: #dc2626;
  --ok: #16a34a;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 100% -10%, #1a2744 0%, var(--bg) 55%);
  color: var(--text);
  line-height: 1.55;
  min-height: 100vh;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 26, 43, 0.9);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { margin: 0; font-size: 1.35rem; }
.sub { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.85rem; }
#app { max-width: 960px; margin: 0 auto; padding: 1rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.card h2 { margin: 0 0 0.75rem; font-size: 1.05rem; }
.card h3 { margin: 0 0 0.5rem; font-size: 0.95rem; color: #c6d4ea; }
.auth-card { max-width: 420px; margin: 2rem auto; }
label { display: block; margin: 0.55rem 0 0.25rem; color: var(--muted); font-size: 0.85rem; }
label.inline { display: flex; align-items: center; gap: 0.4rem; margin: 0; }
input, select {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
}
label.inline select { width: auto; min-width: 90px; }
button {
  padding: 0.65rem 1rem;
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}
button.secondary { background: #334155; }
button.danger { background: var(--danger); }
button.small { padding: 0.4rem 0.7rem; font-size: 0.85rem; }
button:disabled { opacity: 0.55; cursor: not-allowed; }
.row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; margin-top: 0.5rem; }
.row.between { justify-content: space-between; }
.row.wrap { flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 800px) { .grid-2 { grid-template-columns: 1fr; } }
.hidden { display: none !important; }
.msg { min-height: 1.25em; color: #93c5fd; font-size: 0.9rem; margin: 0.5rem 0 0; }
.hint { color: var(--muted); font-size: 0.85rem; }
.code {
  display: inline-block;
  background: #0b1220;
  border: 1px dashed var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 8px;
  letter-spacing: 0.15em;
  font-size: 1.15rem;
}
.info-line { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.list { display: flex; flex-direction: column; gap: 0.5rem; }
.device-item, .loc-item {
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  background: #0d1526;
}
.device-item.active { border-color: var(--primary); background: #152238; }
.device-item .name { font-weight: 700; }
.badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: #334155;
  margin-inline-start: 0.35rem;
}
.badge.online { background: var(--ok); }
.control-block {
  border-top: 1px solid var(--border);
  padding-top: 0.85rem;
  margin-top: 0.85rem;
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}
.g-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: #0d1526;
  font-size: 0.82rem;
}
.g-item img, .g-item video {
  width: 100%;
  height: 120px;
  object-fit: cover;
  display: block;
  background: #000;
}
.g-meta { padding: 0.5rem; }
.g-meta a { color: #93c5fd; }
.g-actions { display: flex; gap: 0.35rem; margin-top: 0.35rem; }
.g-actions button { padding: 0.3rem 0.5rem; font-size: 0.75rem; }