/* Dark theme aligned with Portal design requirements (dark bg, Meta blue,
   near-white text, Inter). Used by both the viewer and the camera simulator. */
:root {
  --bg: #131314;
  --bg-2: #1a1a1c;
  --surface: #202023;
  --surface-2: #2b2b2f;
  --surface-3: #36363b;
  --border: #38383d;
  --border-soft: #2a2a2e;
  --primary: #0866ff;
  --primary-hi: #2978ff;
  --text: #f2f2f3;
  --text-dim: #9a9aa2;
  --danger: #e5484d;
  --ok: #30a46c;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
  --ring: 0 0 0 3px rgba(8, 102, 255, 0.35);
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 600px at 50% -10%, #1d1d22 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: Inter, -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* --- Header ---------------------------------------------------------------- */

header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(19, 19, 20, 0.72);
  backdrop-filter: saturate(140%) blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}
header h1 {
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
header h1::before {
  content: "";
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(8, 102, 255, 0.18);
}
.spacer { flex: 1; }

main { padding: 24px 20px 40px; max-width: 1100px; margin: 0 auto; }

/* --- Status pill ----------------------------------------------------------- */

.status {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
}
header .status {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
}
header .status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: background 0.2s, box-shadow 0.2s;
}
header .status.connected { color: var(--ok); }
header .status.connected::before { background: var(--ok); box-shadow: 0 0 0 3px rgba(48, 164, 108, 0.18); }
header .status.error { color: var(--danger); }
header .status.error::before { background: var(--danger); box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.18); }

/* --- Video ----------------------------------------------------------------- */

.video-wrap {
  position: relative;
  background:
    radial-gradient(420px 240px at 50% 45%, #1c1c20 0%, #0c0c0d 75%);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow);
}
video { width: 100%; height: 100%; object-fit: contain; display: block; }

/* Waiting / connecting overlay shown until the first frame arrives. */
.video-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  pointer-events: none;
}
.spinner {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--primary);
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.badge {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--text-dim); }
.dot.live { background: var(--danger); box-shadow: 0 0 0 0 rgba(229, 72, 77, 0.6); animation: pulse 1.6s infinite; }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0.55); }
  70% { box-shadow: 0 0 0 7px rgba(229, 72, 77, 0); }
  100% { box-shadow: 0 0 0 0 rgba(229, 72, 77, 0); }
}

/* --- Controls -------------------------------------------------------------- */

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  padding: 10px;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
}

button {
  min-height: 50px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  font-size: 15px;
  font-weight: 550;
  font-family: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s, border-color 0.15s, transform 0.06s, box-shadow 0.15s;
}
button:hover { background: var(--surface-3); }
button:active { transform: translateY(1px); }
button:focus-visible { outline: none; box-shadow: var(--ring); }
button.primary { background: var(--primary); color: #fff; }
button.primary:hover { background: var(--primary-hi); }
button.danger { background: transparent; color: var(--danger); border-color: rgba(229, 72, 77, 0.4); }
button.danger:hover { background: rgba(229, 72, 77, 0.12); }
button[aria-pressed="true"] { background: rgba(8, 102, 255, 0.16); border-color: var(--primary); color: #cfe0ff; }
button:disabled { opacity: 0.4; cursor: not-allowed; }

/* --- Forms ----------------------------------------------------------------- */

.field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; }
.field label { font-size: 13px; font-weight: 500; color: var(--text-dim); }
input {
  min-height: 50px;
  padding: 0 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s;
}
input::placeholder { color: #6c6c74; }
input:focus { outline: none; border-color: var(--primary); box-shadow: var(--ring); }

.card {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 26px 24px;
  max-width: 440px;
  margin: 48px auto;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 4px; font-size: 19px; font-weight: 650; letter-spacing: -0.01em; }
.card > p:first-of-type, .card .subtitle { margin-top: 0; color: var(--text-dim); font-size: 14px; }
.card button.primary { width: 100%; justify-content: center; margin-top: 4px; }

#auth-message p { color: var(--text-dim); font-size: 14px; line-height: 1.6; }
#auth-message b { color: var(--text); }
#connect-error:not(:empty) { margin-top: 12px; }

.status.connected { color: var(--ok); }
.status.error { color: var(--danger); }

.hidden { display: none !important; }

/* --- Toasts ---------------------------------------------------------------- */

#toasts {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 50;
}
.toast {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--danger);
  padding: 13px 18px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  min-width: 240px;
  animation: slidein 0.22s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.toast .t-title { font-weight: 600; }
.toast .t-time { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
@keyframes slidein { from { transform: translateX(24px); opacity: 0; } to { transform: none; opacity: 1; } }

/* --- Responsive ------------------------------------------------------------ */

@media (max-width: 560px) {
  header { padding: 12px 16px; }
  main { padding: 16px 14px 32px; }
  .controls { gap: 8px; }
  .controls button { flex: 1 1 calc(50% - 8px); justify-content: center; }
  .controls .spacer { display: none; }
  .controls button.danger { flex-basis: 100%; }
  .card { margin: 24px auto; padding: 22px 18px; }
}