/* ══════════════════════════════════════════════════════════
   INTERGALACTIC CABLE TV — 3D Room Layer
   ══════════════════════════════════════════════════════════

   Only active when <body> has the .env-3d class. The hidden DOM room
   is the CSS3D host for the TV/remote and the static fallback if
   WebGL, the model, or the connection is not up to the job.

   Layer stack in 3D mode (bottom → top):
     1. WebGL room renderer   (#room-3d-root)
     2. CSS3D renderer        (#room-3d-css → .tv-css3d-surface)
     3. Remote / OSD / footer (existing fixed UI)
     4. Status messages       (#room3d-status)
     5. Boot / model loader   (#room-loading, removed once ready)
   ══════════════════════════════════════════════════════════ */

/* ── Boot / model loading screen ───────────────────────── */
#room-loading {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: none;
  place-items: center;
  background:
    radial-gradient(ellipse at 50% 48%, rgba(22, 40, 48, 0.6), transparent 58%),
    #050403;
  color: #eef9ff;
  font-family: "Press Start 2P", monospace;
  text-align: center;
  opacity: 1;
  visibility: visible;
  transition:
    opacity 0.55s ease,
    visibility 0.55s ease;
  cursor: progress;
}

html.room3d-pending #room-loading {
  display: grid;
}

#room-loading::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.022) 0,
    rgba(255, 255, 255, 0.022) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
}

#room-loading.is-hiding {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.room-loading__inner {
  position: relative;
  z-index: 1;
  padding: 24px;
}

.room-loading__mark {
  font-size: clamp(15px, 3.4vw, 34px);
  letter-spacing: 0.14em;
  line-height: 1.7;
  text-shadow:
    0 0 12px rgba(130, 220, 255, 0.45),
    0 0 38px rgba(130, 220, 255, 0.16);
  animation: room-loading-pulse 2.6s ease-in-out infinite;
}

.room-loading__bar {
  width: min(240px, 52vw);
  height: 2px;
  margin: 26px auto 0;
  overflow: hidden;
  background: rgba(160, 225, 255, 0.14);
}

.room-loading__fill {
  display: block;
  width: 4%;
  height: 100%;
  background: linear-gradient(90deg, rgba(120, 220, 255, 0.5), #eafaff);
  box-shadow: 0 0 10px rgba(130, 220, 255, 0.7);
  transition: width 0.3s ease;
}

@keyframes room-loading-pulse {
  0%,
  100% {
    opacity: 0.72;
  }
  50% {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  #room-loading,
  .room-loading__fill {
    transition: none;
  }

  .room-loading__mark {
    animation: none;
  }
}

#room-3d-root {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: none;
  overflow: hidden;
  background: #050403;
  /* Avoid a flash of unstyled canvas before the first frame. */
  opacity: 0;
  transition: opacity 0.8s ease;
}

body.env-3d #room-3d-root {
  display: block;
}

body.env-3d #room-3d-root.is-ready {
  opacity: 1;
}

#room-3d-canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

/* CSS3D layer carries the live TV screen. Keep it above the
   canvas but out of the way of the remote and page gestures. */
#room-3d-css {
  position: fixed;
  inset: 0;
  z-index: 2;
  display: none;
  overflow: hidden;
  pointer-events: none;
}

body.env-3d #room-3d-css {
  display: block;
}

/* Hide the pre-rendered room whenever 3D is live. The TV screen
   has already been moved into the CSS3D layer by this point. */
body.env-3d #room-container,
body.env-3d #tv-off-bg,
body.env-3d #room-overlay-canvas {
  display: none !important;
}

/* The boot log belongs to the 2D set; in 3D it floats over the room. */
body.env-3d #boot-text,
body.env-3d #mobile-swipe-hint {
  display: none !important;
}

/* ── The live TV surface ──────────────────────────────── */
.tv-css3d-surface {
  position: relative;
  overflow: hidden;
  background: #000;
  border-radius: var(--crt-curve, 12px);
  /* CSS3DRenderer writes `pointer-events: auto` inline; keep the iframe
     unreachable so YouTube's hover play/pause overlay never appears. */
  pointer-events: none !important;
  container-type: inline-size;
  /* A hint of glass so the screen sits inside the model. */
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.85),
    0 0 24px rgba(120, 190, 255, 0.06);
  /* The CSS3D renderer owns `transform`; never set it here. */
  transform-style: preserve-3d;
}

.tv-css3d-surface > #tv-screen {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* 16:9 video inside a 5:4 CRT-safe area. The extra width hides
   YouTube's chrome while keeping more picture than the 2D cutout. */
.tv-css3d-viewport {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  overflow: hidden;
  background: #000;
  transform: translate(-50%, -50%);
}

.tv-css3d-viewport #tv-content {
  position: absolute;
  inset: 0;
}

body.env-3d .tv-css3d-viewport #yt-player {
  top: 50%;
  left: 50%;
  width: 160%;
  height: auto;
  min-width: 0;
  min-height: 0;
  aspect-ratio: 16 / 9;
  transform: translate(-50%, -50%);
  pointer-events: none !important;
}

/* OSD sizing is driven by viewport widths in 2D. Inside the
   scaled 3D surface, use surface-relative sizes instead. */
body.env-3d .tv-css3d-surface #channel-osd {
  top: 3.5%;
  right: 3%;
  padding: 0.7cqw 1.1cqw;
  border-radius: 0.5cqw;
  background: rgba(0, 0, 0, 0.42);
  text-shadow:
    0 0 1.1cqw rgba(0, 0, 0, 0.9),
    0 0 2cqw rgba(0, 0, 0, 0.55);
}

body.env-3d .tv-css3d-surface .osd-channel-num {
  font-size: 6.2cqw;
  letter-spacing: 0.25cqw;
}

body.env-3d .tv-css3d-surface .osd-channel-name {
  font-size: 3cqw;
  letter-spacing: 0.12cqw;
}

body.env-3d .tv-css3d-surface .osd-volume-bar {
  font-size: 3.4cqw;
}

body.env-3d .tv-css3d-surface #commercial-bug {
  top: 4%;
  left: 4%;
  padding: 0.3cqw 0.8cqw;
  font-size: 2.4cqw;
  border-radius: 0.3cqw;
}

/* ── Loading / status pill ────────────────────────────── */
#room3d-status {
  position: fixed;
  left: 50%;
  bottom: 26px;
  z-index: 1200;
  max-width: min(86vw, 620px);
  padding: 9px 14px;
  transform: translateX(-50%);
  border: 1px solid rgba(120, 200, 255, 0.18);
  border-radius: 4px;
  background: rgba(4, 8, 12, 0.82);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.55);
  color: rgba(200, 230, 255, 0.82);
  font-family: var(--ui-font, monospace);
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 1px;
  text-align: center;
  text-transform: uppercase;
  pointer-events: none;
  backdrop-filter: blur(6px);
}

#room3d-status[hidden] {
  display: none;
}

/* ── Debug helpers ────────────────────────────────────── */
body.env-3d.room3d-debug #room-3d-root::after {
  content: "3D DEBUG";
  position: absolute;
  top: 12px;
  right: 12px;
  color: #00ff88;
  font: 10px/1.4 monospace;
  letter-spacing: 2px;
  pointer-events: none;
}

/* ── Mobile ───────────────────────────────────────────── */
@media (max-width: 768px) {
  #room3d-status {
    bottom: 18px;
    max-width: 88vw;
    padding: 8px 11px;
    font-size: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  #room-3d-root {
    transition: none;
  }
}