/* === Shared CSS === */
/* Shared runtime styles used by skin-ui.js and hotspot renderers across themes.
   Theme CSS is appended after this file and may override these defaults. */

/* Shared AddToAny share menu */
.vr-share-menu {
  position: fixed;
  z-index: 9999;
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.22);
  pointer-events: auto;
}

.vr-share-menu.hidden {
  display: none;
}

.vr-share-kit {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: max-content;
}

.vr-share-kit a {
  cursor: pointer;
}

.vr-share-copy-btn {
  width: var(--vr-share-icon-size, 40px);
  height: var(--vr-share-icon-size, 40px);
  border: 0;
  border-radius: 4px !important;
  background: #7f8a99;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0;
  overflow: hidden;
  line-height: 1;
  vertical-align: middle;
  transition: width 0.18s ease, background 0.18s ease;
}

.vr-share-copy-btn svg {
  width: calc(var(--vr-share-icon-size, 40px) * 0.6);
  height: calc(var(--vr-share-icon-size, 40px) * 0.6);
  flex: 0 0 auto;
}

.vr-share-copy-btn span {
  display: none;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.vr-share-copy-btn.is-copied {
  width: calc(var(--vr-share-icon-size, 40px) + 66px);
  background: #16a34a;
}

.vr-share-copy-btn.is-copied span {
  display: inline;
}

/* Shared mascot base. Theme CSS may override spacing via CSS variables. */
.mascot-wrapper {
  position: fixed;
  right: var(--mascot-edge-x, 24px);
  bottom: var(--mascot-bottom, 24px);
  z-index: var(--mascot-zindex, 18);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  pointer-events: auto;
}

.mascot-wrapper.pos-left,
.mascot-wrapper.pos-bottom-left,
.mascot-wrapper.pos-top-left {
  left: var(--mascot-edge-x, 24px);
  right: auto;
  align-items: flex-start;
}

.mascot-wrapper.pos-right,
.mascot-wrapper.pos-bottom-right,
.mascot-wrapper.pos-top-right {
  left: auto;
  right: var(--mascot-edge-x, 24px);
  align-items: flex-end;
}

.mascot-wrapper.pos-top-left,
.mascot-wrapper.pos-top-right {
  top: var(--mascot-top, 24px);
  bottom: auto;
}

.mascot-wrapper.pos-left,
.mascot-wrapper.pos-right,
.mascot-wrapper.pos-bottom-left,
.mascot-wrapper.pos-bottom-right {
  top: auto;
  bottom: var(--mascot-bottom, 24px);
}

#vr-mascot {
  width: var(--mascot-size, 80px);
  max-width: calc(100vw - (var(--mascot-edge-x, 24px) * 2));
  height: auto;
  cursor: pointer;
  pointer-events: auto;
  opacity: 1;
  transition: transform 0.18s ease, opacity 0.18s ease;
}

#vr-mascot.hidden {
  display: none;
}

#vr-mascot img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
}

@media (max-width: 900px) {
  .mascot-wrapper {
    right: var(--mascot-mobile-edge-x, 12px);
    bottom: var(--mascot-mobile-bottom, 74px);
    z-index: var(--mascot-zindex-mobile, var(--mascot-zindex, 18));
  }

  .mascot-wrapper.pos-left,
  .mascot-wrapper.pos-bottom-left,
  .mascot-wrapper.pos-top-left {
    left: var(--mascot-mobile-edge-x, 12px);
    right: auto;
  }

  .mascot-wrapper.pos-right,
  .mascot-wrapper.pos-bottom-right,
  .mascot-wrapper.pos-top-right {
    left: auto;
    right: var(--mascot-mobile-edge-x, 12px);
  }

  .mascot-wrapper.pos-top-left,
  .mascot-wrapper.pos-top-right {
    top: var(--mascot-mobile-top, 74px);
    bottom: auto;
  }

  .mascot-wrapper.pos-left,
  .mascot-wrapper.pos-right,
  .mascot-wrapper.pos-bottom-left,
  .mascot-wrapper.pos-bottom-right {
    top: auto;
    bottom: var(--mascot-mobile-bottom, 74px);
  }

  #vr-mascot {
    width: var(--mascot-mobile-size, var(--mascot-size, 80px));
    max-width: calc(100vw - (var(--mascot-mobile-edge-x, 12px) * 2));
  }
}

/* Hotspot base */
.vr-hotspot {
  position: absolute;
  cursor: pointer;
  transform-origin: center center;
}

.vr-hotspot-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.85);
  color: #fff;
  font-size: 11px;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: var(--radius-sm, 8px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
}

.vr-hotspot-tooltip.visible {
  opacity: 1;
}

/* Hotspot: pulse */
.hs-pulse {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hs-pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary, #1a73e8);
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
  transition: transform 0.15s;
}

.hs-pulse:hover .hs-pulse-dot {
  transform: scale(1.25);
}

.hs-pulse-ring {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--color-primary, #1a73e8);
  animation: vr-pulse 1.8s ease-out infinite;
  pointer-events: none;
}

@keyframes vr-pulse {
  0% { transform: scale(0.8); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* Hotspot: callout */
.hs-callout {
  pointer-events: auto;
}

.hs-callout-label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px 6px 10px;
  background: var(--glass-bg, rgba(255, 255, 255, 0.6));
  backdrop-filter: var(--glass-blur, blur(12px));
  -webkit-backdrop-filter: var(--glass-blur, blur(12px));
  border: 1px solid var(--glass-border, rgba(255, 255, 255, 0.35));
  border-radius: 4px;
  color: var(--color-text, #111827);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  transition: transform 0.15s, background 0.15s, color 0.15s;
}

.hs-callout:hover .hs-callout-label {
  background: rgba(0, 0, 0, 0.9);
  color: #fff;
  transform: scale(1.05);
}

.hs-callout-arrow {
  color: var(--color-primary, #1a73e8);
  flex-shrink: 0;
}

/* Hotspot: circle */
.hs-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hs-circle-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  border: 2px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.hs-circle:hover .hs-circle-icon {
  transform: scale(1.12);
  border-color: var(--color-primary, #1a73e8);
  box-shadow: 0 0 12px rgba(26, 115, 232, 0.6);
}

.hs-circle-label {
  font-size: 11px;
  color: #fff;
  text-align: center;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
}

/* Hotspot: default fallback */
.hs-default {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hs-default-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent, #facc15);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

/* Location labels (tab Nhan) */
.vr-custom-hs {
  pointer-events: auto;
}

.vr-label {
  position: absolute;
  width: 0;
  height: 0;
  overflow: visible;
  pointer-events: none;
  user-select: none;
}

.vr-label-flag {
  position: absolute;
  top: -51px;
  left: 29px;
  padding: 8px 16px;
  background: rgba(11, 168, 129, 0.95);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  border-radius: 4px;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  letter-spacing: 0.01em;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s;
}

.vr-label-flag:hover {
  transform: scale(1.05);
}

.vr-label-stem {
  position: absolute;
  width: 2px;
  height: 40px;
  top: -40px;
  left: -1px;
  background: rgba(255, 255, 255, 0.85);
  transform: rotate(35deg);
  transform-origin: bottom center;
  border-radius: 2px;
}

.vr-label-elbow {
  position: absolute;
  width: 2px;
  height: 36px;
  top: -51px;
  left: 22px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 2px;
}

.vr-label-icon {
  position: absolute;
  width: 24px;
  height: 24px;
  top: -12px;
  left: -12px;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  cursor: pointer;
}

.vr-label-badge {
  position: absolute;
  transform: translate(-50%, calc(-100% - 10px));
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  border-radius: 20px;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
  pointer-events: auto;
  cursor: default;
  transition: transform 0.15s;
  letter-spacing: 0.01em;
}

.vr-label-badge:hover {
  transform: translate(-50%, calc(-100% - 10px)) scale(1.05);
}

.vr-label-badge--icon,
.vr-label-badge--custom-icon {
  padding: 4px;
  border-radius: 50%;
}

.vr-label-badge--preview-room {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.55);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.vr-label-preview-thumb {
  display: block;
  flex-shrink: 0;
}

.vr-label-badge--label,
.vr-label-badge--name {
  border-radius: 4px;
}

.vr-label-badge-text {
  line-height: 1.2;
}

.vr-label-badge-anchor {
  position: absolute;
  width: 14px;
  height: 14px;
  top: -7px;
  left: -7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  border: 2px solid rgba(255, 255, 255, 0.4);
  cursor: pointer;
  pointer-events: auto;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
}


/* === Theme CSS === */
/* === VR360 Theme: School === */

/* ── 1. Theme Variables ── */
:root {
  --navbar-height: 58px;
  --list-scenes-height: 150px;
  --sidebar-width: 336px;
  --mascot-size: 80px;
  --glass-bg: rgba(255, 255, 255, 0.75);
  --glass-border: rgba(255, 255, 255, 0.74);
  --glass-blur: blur(18px) saturate(170%);
  --glass-blur-webkit: blur(18px) saturate(170%);
  --halo-primary: rgba(74, 158, 187, 0.25);
  --halo-soft: rgba(74, 158, 187, 0.10);
  --anim-panel: 0.30s cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-strip: 0.32s cubic-bezier(0.34, 1.56, 0.64, 1);
  --anim-fade: 0.20s cubic-bezier(0.4, 0, 0.2, 1);
  --anim-scale: 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  --color-primary: var(--brand-primary, #2079ff);
  --color-secondary: var(--brand-secondary, #22d8ee);
  --color-accent: var(--brand-accent, #ffd261);
  --color-text: #1a2335;
  --color-text-muted: rgba(26, 35, 53, 0.68);
  --radius-sm: 10px;
  --radius-md: 20px;
  --radius-pill: 9999px;
}

/* ── 2. Reset & Shared ── */
:where(#vr-skin *) { box-sizing: border-box; margin: 0; padding: 0; }
#vr-skin { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; color: var(--color-text); }
#vr-skin .interactive { pointer-events: auto; }
.hidden { display: none; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 2px; }
::-webkit-scrollbar-track { background: transparent; }

/* ── 3. Shared Components (Glass base) ── */
#vr-navbar { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; align-items: center; gap: 16px; background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur-webkit); border-radius: var(--radius-pill); border: 1px solid var(--glass-border); padding: 10px 16px; pointer-events: auto; z-index: 20; height: var(--navbar-height); white-space: nowrap; }
#vr-navbar.hidden { opacity: 0; pointer-events: none; transform: translateX(-50%) translateY(120px); visibility: hidden; }
#vr-navbar.hidden .interactive, #vr-navbar.hidden .vr-btn { pointer-events: none; }
.vr-btn { height: 44px; min-width: 44px; border-radius: var(--radius-sm); background: transparent; border: 1px solid transparent; padding: 0 14px; font-size: 14px; font-weight: 500; color: var(--color-text); cursor: pointer; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; transition: background var(--anim-fade), transform var(--anim-scale), box-shadow var(--anim-fade), color var(--anim-fade); }
.vr-btn:hover { background: rgba(0,0,0,0.08); color: var(--color-text); transform: translateY(-1px); }
.vr-btn:active { transform: translateY(1px) scale(0.98); }
.vr-btn.active { background: rgba(74,158,187,0.25); border-color: var(--color-primary); color: var(--color-text); box-shadow: 0 0 20px rgba(74,158,187,0.35), 0 2px 8px rgba(0,0,0,0.10); }
.vr-btn svg, .vr-btn i, .vr-btn [class*="icon"] { color: var(--color-text); }
.vr-btn .btn-label { color: var(--color-text); font-size: 11px; font-weight: 600; }
.vr-btn svg { width: 20px; height: 20px; flex-shrink: 0; overflow: visible; }
.vr-divider { width: 1px; height: 28px; background: rgba(0,0,0,0.15); margin: 0 8px; }

#vr-controls { position: absolute; top: 24px; right: 24px; display: flex; flex-direction: column; gap: 0; pointer-events: auto; z-index: 20; }
#vr-controls #btn-controls-toggle { margin-bottom: 5px; }
.vr-controls-group { display: flex; flex-direction: column; gap: 8px; overflow: hidden; max-height: 500px; opacity: 1; transition: max-height 0.25s ease, opacity 0.2s ease; background: transparent; border: none; }
#vr-controls.collapsed .vr-controls-group { max-height: 0; opacity: 0; pointer-events: none; }
.vr-ctrl-btn { width: 44px; height: 44px; border-radius: var(--radius-sm); background: rgba(255,255,255,0.50); border: 1px solid rgba(0,0,0,0.10); color: var(--color-text); cursor: pointer; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background var(--anim-fade), transform var(--anim-scale), box-shadow var(--anim-fade), color var(--anim-fade); }
.vr-ctrl-btn svg { color: var(--color-text); width: 20px; height: 20px; overflow: visible; }
.vr-ctrl-btn:hover { background: rgba(255,255,255,0.70); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.vr-ctrl-btn:active { transform: translateY(0) scale(0.95); }
.vr-ctrl-btn.active { background: rgba(74,158,187,0.30); border-color: var(--color-primary); box-shadow: 0 0 24px rgba(74,158,187,0.40), 0 4px 12px rgba(0,0,0,0.10); }

.scene-card { position: relative; width: 120px; height: 95px; flex-shrink: 0; border-radius: var(--radius-md); overflow: hidden; cursor: pointer; border: 1px solid rgba(0,0,0,0.10); background: rgba(255,255,255,0.60); box-shadow: 0 2px 8px rgba(0,0,0,0.08); user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; transition: transform var(--anim-scale), box-shadow var(--anim-fade), border-color var(--anim-fade); }
.scene-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.scene-card .placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; background: #333; color: rgba(255,255,255,0.2); font-size: 24px; font-weight: bold; }
.scene-card-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.50) 0%, transparent 60%); pointer-events: none; border-radius: inherit; }
.scene-card-num { position: absolute; top: 6px; left: 6px; font-size: 11px; font-weight: 700; color: #fff; background: rgba(0,0,0,0.55); padding: 2px 6px; border-radius: 4px; line-height: 1.4; letter-spacing: 0.03em; }
.scene-card-title { position: absolute; bottom: 0; left: 0; right: 0; box-sizing: border-box; padding: 6px 8px 8px; font-size: 12px; color: #fff; font-weight: 600; line-height: 1.25; max-height: calc(4 * 1.25em + 14px); display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.scene-card:hover { transform: translateY(-6px); box-shadow: 0 8px 24px rgba(0,0,0,0.15); border-color: rgba(0,0,0,0.15); }
.scene-card.active { border-color: var(--color-primary); transform: translateY(-8px) scale(1.02); box-shadow: 0 0 30px rgba(74,158,187,0.35), 0 12px 32px rgba(0,0,0,0.18); }
.scene-card.active .scene-card-num { background: var(--color-secondary); color: #fff; }
.scene-card-desc { color: var(--color-text-muted); font-size: 11px; }

.vr-list-scroll { display: flex; gap: 10px; overflow-x: auto; flex: 1; min-width: 0; align-items: flex-end; height: 100%; padding: 15px 20px 10px; scrollbar-width: thin; scrollbar-color: rgba(0,0,0,0.5) rgba(0,0,0,0.05); cursor: grab; -webkit-overflow-scrolling: touch; position: relative; z-index: 2; touch-action: pan-x; pointer-events: auto; }
.vr-list-scroll.grabbing { cursor: grabbing; }
.vr-list-scroll.grabbing .scene-card { transition: none; }
.vr-list-scroll.grabbing .scene-card:hover { transform: none; }
.vr-list-scroll::-webkit-scrollbar { height: 6px; display: block !important; }
.vr-list-scroll::-webkit-scrollbar-track { background: rgba(0,0,0,0.05); border-radius: 10px; }
.vr-list-scroll::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.5); border-radius: 10px; }

.vr-list-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 32px; height: 32px; background: rgba(0,0,0,0.6); border-radius: 50%; color: #fff; border: 1px solid rgba(255,255,255,0.2); cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 3; transition: opacity var(--anim-fade); }
.vr-list-arrow:hover { background: rgba(0,0,0,0.8); }
.vr-list-arrow.hidden { opacity: 0; pointer-events: none; }
.vr-list-prev { left: 8px; } .vr-list-next { right: 8px; }
.vr-list-arrow svg { width: 16px; height: 16px; fill: currentColor; }
.vr-list-close-btn { position: absolute; top: 0; left: 50%; transform: translateX(-50%) translateY(-100%); width: 40px; height: 24px; border-radius: var(--radius-pill); background: rgba(255,255,255,0.60); border: 1px solid rgba(0,0,0,0.10); color: var(--color-text); display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 20; transition: background var(--anim-fade), transform var(--anim-scale), color var(--anim-fade); }
.vr-list-close-btn:hover { background: rgba(255,255,255,0.80); }
.vr-list-close-btn svg { width: 20px; height: 20px; color: var(--color-text); }
#vr-list-scenes { position: absolute; bottom: 0; left: 0; right: 0; height: var(--list-scenes-height); background: linear-gradient(to top, rgba(255,255,255,0.50) 0%, rgba(255,255,255,0.25) 50%, transparent 100%); display: flex; align-items: stretch; pointer-events: auto; z-index: 16; transform: translateY(0); transition: transform var(--anim-strip); overflow: visible; border-top: none; }
#vr-list-scenes > div { pointer-events: auto; }
#vr-list-scenes.hidden { transform: translateY(100%); pointer-events: none; }
#vr-list-scenes.hidden .vr-list-close-btn { opacity: 0; pointer-events: none; }

#vr-language-dropdown { position: absolute; bottom: calc(var(--navbar-height) + 36px); left: 50%; transform: translateX(-50%); background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-md); padding: 8px; display: flex; flex-direction: column; gap: 4px; min-width: 120px; box-shadow: 0 10px 30px rgba(0,0,0,0.4); z-index: 21; transition: opacity var(--anim-fade), transform var(--anim-fade); }
.vr-lang-item { cursor: pointer; padding: 6px 12px; border-radius: 20px; background: rgba(0,0,0,0.5); color: rgba(255,255,255,0.8); transition: all var(--anim-fade); border: none; font-size: 14px; }
.vr-lang-item:hover { background: rgba(255,255,255,0.1); color: #fff; }
.vr-lang-item.active { background: var(--color-primary); color: #fff; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }

.mascot-wrapper { position: absolute; bottom: 20px; right: 20px; pointer-events: auto; z-index: var(--mascot-zindex, 18); display: flex; flex-direction: column; align-items: center; justify-content: flex-end; gap: 0; }
.mascot-wrapper.pos-left { left: 20px; right: auto; }
#vr-mascot { position: relative; width: var(--mascot-size); height: auto; cursor: pointer; z-index: 1; }
#vr-mascot:hover, #vr-mascot.active { cursor: pointer; }
#vr-mascot img { width: 100%; height: auto; display: block; }
#vr-mascot .logo-bg-disabled { display: none; }
#vr-skin:has(#vr-list-scenes:not(.hidden)) .mascot-wrapper { bottom: calc(var(--list-scenes-height) + 10px); }
#vr-skin.many-scenes:has(#vr-list-scenes:not(.hidden)) .mascot-wrapper { bottom: calc(var(--list-scenes-height) + 16px); }

.vr-panel { position: absolute; background: var(--glass-bg); backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); border: 1px solid var(--glass-border); border-radius: var(--radius-md); color: var(--color-text); pointer-events: auto; transition: opacity var(--anim-panel), transform var(--anim-panel); overflow: hidden; z-index: 15; display: flex; flex-direction: column; }
.vr-panel.hidden { opacity: 0; pointer-events: none; }
.vr-panel.hidden * { pointer-events: none !important; }

.vr-panel-close { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 16px; padding: 2px 6px; border-radius: 4px; line-height: 1; position: absolute; right: 12px; top: 12px; }
.vr-panel-close:hover { color: var(--color-text); background: rgba(255,255,255,0.1); }

/* Modal box Glass override */
.vr-modal-box { backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); background: rgba(255, 255, 255, 0.85); border: 1px solid rgba(0, 0, 0, 0.12); border-radius: var(--radius-md); box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.60); color: var(--color-text); }
.vr-modal-box * { color: var(--color-text); }

/* Minimap Glass override */
#vr-minimap { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.10); }

/* Close button Glass override */
.vr-list-close-btn { background: rgba(255, 255, 255, 0.60); border: 1px solid rgba(0, 0, 0, 0.10); color: var(--color-text); transition: background var(--anim-fade), transform var(--anim-scale), color var(--anim-fade); }
.vr-list-close-btn:hover { background: rgba(255, 255, 255, 0.80); color: var(--color-text); }
.vr-list-close-btn svg { color: var(--color-text); }

/* Toggle tab Glass override */
#btn-sidebar-toggle { background: var(--glass-bg); border: 1px solid var(--glass-border); border-left: none; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; box-shadow: 2px 0 8px rgba(0, 0, 0, 0.08); color: var(--color-text); }
#btn-sidebar-toggle svg { color: var(--color-text); }

/* ── 4. School Variables ── */
#vr-skin.skin-school {
  --school-blue: var(--brand-primary, #0b5596);
  --school-blue-2: var(--brand-primary, #1678ff);
  --school-cyan: var(--brand-secondary, #35dff2);
  --school-accent: var(--brand-accent, #ffd261);
  --school-ink: #172338;
  --school-glass: rgba(255, 255, 255, 0.9);
  --school-line: rgba(255, 255, 255, 0.82);
  --school-shadow: 0 18px 42px rgba(14, 73, 146, 0.22);
  --school-mobile-sheet-height: 55vh;
  --school-mobile-campus-height: 58px;
  font-family: var(--brand-font, Inter, system-ui, sans-serif);
}
#vr-skin.skin-school * { font-family: inherit; }

/* Hide Glass navbar/controls/list-scenes — School uses rail/mobile-nav */
#vr-skin.skin-school #vr-navbar,
#vr-skin.skin-school #vr-controls,
#vr-skin.skin-school #vr-list-scenes,
#vr-skin.skin-school #btn-sidebar-toggle { display: none; }

/* ── 5. School Desktop ── */

/* Infobar */
#vr-skin.skin-school #vr-infobar {
  position: absolute; top: 22px; left: 50%; transform: translateX(-50%);
  min-width: 220px; max-width: min(520px, calc(100vw - 560px)); min-height: 38px;
  border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.82);
  background: rgba(255, 255, 255, 0.9); box-shadow: 0 12px 34px rgba(24, 94, 170, 0.18);
  color: var(--school-blue); display: flex; align-items: center; justify-content: center;
  padding: 8px 20px; z-index: 20; gap: 2px; pointer-events: none; flex-direction: column;
  transition: opacity var(--anim-fade), transform var(--anim-fade);
}
#vr-skin.skin-school #vr-infobar.anim-out { opacity: 0; transform: translateX(-50%) scale(0.95); }
#vr-skin.skin-school #vr-infobar .breadcrumb-tag { color: var(--school-blue); font-size: 14px; font-weight: 900; text-transform: none; letter-spacing: 0; }
#vr-skin.skin-school #vr-infobar .scene-title { color: var(--school-blue); display: block; font-size: 11px; font-weight: 700; opacity: 0.86; }
#vr-skin.skin-school #vr-infobar .infobar-dot { display: none; }

/* Rail */
#vr-skin.skin-school #vr-school-rail { position: absolute; left: 20px; top: 20px; display: flex; flex-direction: column; gap: 10px; pointer-events: auto; z-index: 28; }
#vr-skin.skin-school .vr-school-rail-btn,
#vr-skin.skin-school #vr-school-rail #btn-school-menu {
  position: static; width: 50px; height: 50px; min-width: 50px; padding: 0;
  border-radius: 13px; border: 1px solid var(--school-line); background: var(--school-glass);
  color: var(--school-blue); box-shadow: 0 12px 28px color-mix(in srgb, var(--school-blue) 16%, transparent);
  display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: background var(--anim-fade), color var(--anim-fade), box-shadow var(--anim-fade), transform var(--anim-fade);
}
#vr-skin.skin-school .vr-school-rail-btn svg { width: 23px; height: 23px; }
#vr-skin.skin-school .vr-school-rail-btn.active,
#vr-skin.skin-school .vr-school-rail-btn:hover,
#vr-skin.skin-school #vr-school-rail #btn-school-menu:hover,
#vr-skin.skin-school #vr-school-rail #btn-school-menu.active {
  background: var(--school-blue); color: #fff;
  box-shadow: 0 14px 30px color-mix(in srgb, var(--school-blue) 28%, transparent);
  transform: translateY(-1px);
}

/* Category */
#vr-skin.skin-school #vr-category {
  position: absolute; left: 100px; top: 20px; width: 332px; height: auto;
  max-height: calc(100vh - 134px); max-width: calc(100vw - 132px); border-radius: 8px;
  background: var(--school-glass); border: 1px solid var(--school-line); box-shadow: var(--school-shadow);
  overflow: hidden; z-index: 24; pointer-events: auto; transition: transform var(--anim-panel);
  display: flex; flex-direction: column;
}
#vr-skin.skin-school #vr-category.hidden { transform: translateX(calc(-100% - 120px)); opacity: 0; pointer-events: none; }

#vr-skin.skin-school #vr-category .vr-panel-header {
  position: relative; min-height: 54px; padding: 9px 46px; color: #fff;
  background: linear-gradient(135deg, var(--school-blue), color-mix(in srgb, var(--school-blue) 78%, #061d38));
  border-bottom: 0; border-radius: 8px 8px 0 0; display: flex; align-items: center;
  justify-content: center; flex-direction: column; gap: 3px;
}
#vr-skin.skin-school .vr-school-header-title { max-width: 210px; overflow-wrap: anywhere; color: inherit; font-size: 14px; font-weight: 800; line-height: 1.24; text-transform: none; }
#vr-skin.skin-school #vr-category .proj-name { color: rgba(255, 255, 255, 0.82); font-size: 11px; font-weight: 700; margin: 0; }

#vr-skin.skin-school #btn-school-close,
#vr-skin.skin-school #btn-school-back { position: absolute; top: 50%; width: 32px; height: 32px; border: 0; border-radius: 7px; transform: translateY(-50%); color: #fff; background: transparent; cursor: pointer; font-size: 26px; line-height: 1; display: flex; align-items: center; justify-content: center; }
#vr-skin.skin-school #btn-school-close { right: 10px; }
#vr-skin.skin-school #btn-school-back { left: 10px; }
#vr-skin.skin-school #btn-school-close:hover,
#vr-skin.skin-school #btn-school-back:hover { background: rgba(255, 255, 255, 0.16); }

#vr-skin.skin-school #vr-category-items { height: auto; max-height: calc(100vh - 188px); overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; touch-action: pan-y; padding: 6px 0 8px; gap: 0; display: flex; flex-direction: column; }
#vr-skin.skin-school #vr-category-items::-webkit-scrollbar { width: 4px; }
#vr-skin.skin-school #vr-category-items::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 2px; }
#vr-skin.skin-school #vr-category-items::-webkit-scrollbar-track { background: transparent; }

#vr-skin.skin-school .vr-category-item,
#vr-skin.skin-school .vr-school-scene-item { min-height: 45px; margin: 0; padding: 0 10px 0 14px; border: 0; border-left: 4px solid transparent; border-radius: 0; background: transparent; color: var(--school-blue); box-shadow: none; display: flex; align-items: center; justify-content: space-between; gap: 10px; font-size: 12px; font-weight: 800; text-transform: uppercase; cursor: pointer; }
#vr-skin.skin-school .vr-school-scene-item { justify-content: flex-start; }
#vr-skin.skin-school .vr-category-item:nth-child(odd):not(.active),
#vr-skin.skin-school .vr-school-scene-item:nth-child(odd):not(.active) { background: transparent; }
#vr-skin.skin-school .vr-category-item:hover,
#vr-skin.skin-school .vr-school-scene-item:hover { background: color-mix(in srgb, var(--school-cyan) 16%, transparent); transform: none; }
#vr-skin.skin-school .vr-category-item.active,
#vr-skin.skin-school .vr-school-scene-item.active { color: var(--school-blue); background: linear-gradient(90deg, color-mix(in srgb, var(--school-cyan) 28%, transparent), transparent 88%); border-left-color: var(--school-blue); box-shadow: none; }

#vr-skin.skin-school .vr-category-left-section { display: flex; align-items: center; gap: 10px; flex-grow: 1; min-width: 0; }
#vr-skin.skin-school .vr-school-scene-title { flex: 1 1 auto; min-width: 0; text-align: left; }
#vr-skin.skin-school .vr-category-label,#vr-skin.skin-school .vr-school-scene-title,#vr-skin.skin-school .icon-slot,#vr-skin.skin-school .icon-slot i,#vr-skin.skin-school .icon-text { color: var(--school-blue); }
#vr-skin.skin-school .vr-category-badge,#vr-skin.skin-school .vr-school-scene-num { color: var(--school-accent); }
#vr-skin.skin-school .vr-category-item.active .vr-category-badge,
#vr-skin.skin-school .vr-school-scene-item.active .vr-school-scene-num { color: var(--school-accent); }
#vr-skin.skin-school .icon-slot { border: 0; border-radius: 0; background: transparent; box-shadow: none; display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; width: 24px; height: 24px; }
#vr-skin.skin-school .icon-slot i { font-size: 18px; line-height: 1; }
#vr-skin.skin-school .icon-slot i:is(.fa,.fas,.fa-solid) { font-family: "Font Awesome 6 Free"; font-weight: 900; }
#vr-skin.skin-school .icon-slot i:is(.fab,.fa-brands) { font-family: "Font Awesome 6 Brands"; font-weight: 400; }
#vr-skin.skin-school .icon-text { font-size: 13px; font-weight: 900; line-height: 1; flex: 0 0 auto; }
#vr-skin.skin-school .vr-category-icon { width: 18px; height: 18px; object-fit: contain; display: block; flex: 0 0 auto; }
#vr-skin.skin-school .vr-school-empty { padding: 18px; color: var(--school-ink); font-size: 13px; font-weight: 700; text-align: center; }

/* Campus */
#vr-skin.skin-school #vr-school-campus { position: absolute; left: 20px; bottom: 22px; display: flex; align-items: center; gap: 12px; pointer-events: auto; z-index: 23; }
#vr-skin.skin-school .vr-school-campus-tabs { display: flex; gap: 8px; overflow: visible; border: 0; background: transparent; box-shadow: none; }
#vr-skin.skin-school .vr-school-campus-tab { min-width: 108px; border: 1px solid var(--school-line); border-radius: 13px; padding: 0 20px; color: var(--school-blue); background: rgba(255, 255, 255, 0.68); box-shadow: 0 12px 28px rgba(18, 85, 146, 0.18); font-size: 13px; font-weight: 900; cursor: pointer; height: 46px; }
#vr-skin.skin-school .vr-school-campus-tab.active { color: #fff; background: var(--school-blue); }

/* CTA */
#vr-skin.skin-school .vr-school-cta { height: 46px; min-width: 168px; margin-left: 0; border-radius: 13px; color: var(--school-ink); background: linear-gradient(135deg, var(--school-accent), var(--school-cyan)); box-shadow: 0 12px 28px rgba(18, 85, 146, 0.18); display: flex; align-items: center; justify-content: center; padding: 0 22px; text-decoration: none; font-size: 13px; font-weight: 900; }

/* Logo */
#vr-skin.skin-school #vr-logo { position: absolute; top: 24px; right: 30px; left: auto; width: 88px; max-width: none; min-height: 88px; border-radius: 20px; display: flex; align-items: center; justify-content: center; background: transparent; border: 0; backdrop-filter: none; -webkit-backdrop-filter: none; z-index: 20; }
#vr-skin.skin-school #vr-logo img { max-width: 100%; max-height: 100%; }

/* Controls (School style) */
#vr-skin.skin-school #vr-controls { top: 24px; right: 24px; }
#vr-skin.skin-school .vr-ctrl-btn { background: var(--school-glass); border-color: rgba(255, 255, 255, 0.78); color: var(--color-primary); }
#vr-skin.skin-school .vr-ctrl-btn svg { color: var(--color-primary); }
#vr-skin.skin-school .vr-ctrl-btn:hover,#vr-skin.skin-school .vr-ctrl-btn.active { color: #fff; background: var(--color-primary); }
#vr-skin.skin-school .vr-ctrl-btn:hover svg,#vr-skin.skin-school .vr-ctrl-btn.active svg { color: #fff; }

/* Playback */
#vr-skin.skin-school #vr-school-playback { position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%); height: 40px; padding: 0 10px; display: flex; align-items: center; gap: 7px; border-radius: 9px; background: rgba(255, 255, 255, 0.76); border: 1px solid var(--school-line); box-shadow: 0 12px 26px rgba(14, 73, 146, 0.2); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); pointer-events: auto; z-index: 23; }
#vr-skin.skin-school #vr-school-playback button { width: 34px; height: 32px; border: 0; border-radius: 6px; color: var(--school-blue); background: transparent; cursor: pointer; font-size: 18px; font-weight: 900; display: flex; align-items: center; justify-content: center; }
#vr-skin.skin-school #vr-school-playback button:hover { background: rgba(32, 121, 255, 0.12); }

/* Mascot */
#vr-skin.skin-school .mascot-wrapper { right: 20px; bottom: 20px; display: flex; flex-direction: column; align-items: flex-end; gap: 8px; }
#vr-skin.skin-school .mascot-wrapper.pos-left { left: 20px; right: auto; align-items: flex-start; }
#vr-skin.skin-school #vr-mascot { width: var(--mascot-size); }
#vr-skin.skin-school #vr-language-dropdown { bottom: auto; flex-direction: row; align-items: center; width: auto; height: auto; max-height: none; min-width: 0; gap: 4px; padding: 4px; border-radius: 14px; background: rgba(255,255,255,0.9); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); transform: none; position: absolute; left: 20px; right: auto; top: 140px; z-index: 27; transition: none; }
#vr-skin.skin-school #vr-language-dropdown .vr-lang-item { width: auto; min-width: 36px; height: 32px; padding: 0 10px; border-radius: 10px; flex: 0 0 auto; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 12px; background: rgba(0,0,0,0.08); color: var(--school-ink); transition: none; }
#vr-skin.skin-school #vr-language-dropdown .vr-lang-item.active { background: var(--school-blue); color: #fff; }

/* States */
#vr-skin.skin-school #vr-category.hidden,#vr-skin.skin-school #vr-minimap.hidden,
#vr-skin.skin-school #vr-language-dropdown.hidden,#vr-skin.skin-school #vr-narration.hidden { visibility: hidden; pointer-events: none; }
#vr-skin.skin-school #vr-category.hidden *,#vr-skin.skin-school #vr-minimap.hidden *,
#vr-skin.skin-school #vr-language-dropdown.hidden *,#vr-skin.skin-school #vr-narration.hidden * { pointer-events: none !important; }

#vr-skin.skin-school.map-expanded-open #vr-school-rail,#vr-skin.skin-school.map-expanded-open #vr-school-mobile-nav,
#vr-skin.skin-school.map-expanded-open #vr-school-campus,#vr-skin.skin-school.map-expanded-open #vr-school-playback,
#vr-skin.skin-school.map-expanded-open #vr-category,#vr-skin.skin-school.map-expanded-open #btn-sidebar-toggle { z-index: 70; pointer-events: auto; }
#vr-skin.skin-school.map-expanded-open #vr-logo,#vr-skin.skin-school.map-expanded-open #vr-infobar,
#vr-skin.skin-school.map-expanded-open .mascot-wrapper { display: none; pointer-events: none; }
#vr-skin.skin-school.map-expanded-open #vr-category.hidden { visibility: hidden; pointer-events: none; }
#vr-skin.skin-school.map-expanded-open #vr-category.hidden * { visibility: hidden; pointer-events: none; }
#vr-skin.skin-school.school-map-open .mascot-wrapper,
#vr-skin.skin-school.school-map-open #vr-school-campus .vr-school-cta { opacity: 0; visibility: hidden; pointer-events: none; }

#vr-skin.skin-school #vr-school-mobile-nav { display: none; }
#vr-skin.skin-school #btn-school-sheet-handle { display: none; }
#vr-skin.skin-school #vr-school-mobile-cta { display: none; }

/* ── 6. Mobile Layout (≤600px) ── */
@media (max-width: 600px) {
  #vr-skin.skin-school #vr-school-rail { display: none; }

  #vr-skin.skin-school #vr-infobar {
    top: 10px; left: 50%; right: auto; width: auto; min-width: 0; max-width: 90vw;
    padding: 8px 14px; border-radius: 18px; transform: translateX(-50%); overflow: hidden;
  }
  #vr-skin.skin-school #vr-infobar .breadcrumb-tag { font-size: 13px; font-weight: 800; line-height: 1.15; white-space: normal; }
  #vr-skin.skin-school #vr-infobar .scene-title { display: block; font-size: 11px; font-weight: 600; line-height: 1.15; opacity: 0.86; }

  #vr-skin.skin-school #vr-logo { top: 74px; right: 12px; left: auto; width: var(--school-logo-mobile-width, 88px) !important; max-width: var(--school-logo-mobile-width, 88px) !important; min-height: auto; padding: 0; border-radius: 14px; }
  #vr-skin.skin-school #vr-logo img { width: var(--school-logo-mobile-width, 88px); max-width: var(--school-logo-mobile-width, 88px); max-height: none; }

  #vr-skin.skin-school #vr-controls { display: flex; top: 74px; left: 12px; right: auto; }
  #vr-skin.skin-school.school-controls-right #vr-controls { left: auto; right: 12px; }
  #vr-skin.skin-school.school-controls-right #vr-logo { left: 12px; right: auto; }

  #vr-skin.skin-school #vr-category {
    left: 12px; right: 12px; top: auto; bottom: 80px; width: auto; max-width: none;
    max-height: var(--school-mobile-sheet-height);
    padding-bottom: var(--school-mobile-campus-height); border-radius: 8px; transform: translateY(0); z-index: 36;
  }
  #vr-skin.skin-school #vr-category.hidden { transform: translateY(calc(100% + 18px)); }

  #vr-skin.skin-school #btn-school-close { display: none; }
  #vr-skin.skin-school #btn-school-back { display: flex; background: transparent; border: 0; box-shadow: none; color: #fff; }

  #vr-skin.skin-school #btn-school-sheet-handle { display: block; position: absolute; top: 5px; left: 50%; transform: translateX(-50%); width: 60px; height: 6px; z-index: 1; }
  #vr-skin.skin-school #btn-school-sheet-handle::before { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 52px; height: 5px; border-radius: 3px; background: rgba(23, 35, 56, 0.28); }

  #vr-skin.skin-school #vr-category-items { height: auto; max-height: calc(var(--school-mobile-sheet-height) - 128px); overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; touch-action: pan-y; }

  #vr-skin.skin-school #vr-school-campus { display: none; position: absolute; left: 12px; right: 12px; bottom: 80px; width: auto; height: var(--school-mobile-campus-height); padding: 0 12px; margin: 0; background: transparent; border: 0; box-shadow: none; z-index: 37; pointer-events: auto; transform: translateY(calc(100% + 18px)); }
  #vr-skin.skin-school.school-sidebar-open #vr-school-campus { display: flex; transform: translateY(0); }
  #vr-skin.skin-school .vr-school-campus-tabs { cursor: grab; overflow-x: auto; overflow-y: hidden; touch-action: pan-x; overscroll-behavior: contain; background: transparent; border: 0; box-shadow: none; padding: 0; border-radius: 0; width: 100%; justify-content: center; }

  #vr-skin.skin-school #vr-school-mobile-nav { position: absolute; left: 12px; right: 12px; bottom: 12px; width: auto; height: 64px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); align-items: stretch; justify-content: stretch; gap: 0; padding: 8px 6px; border-radius: 18px; border: 1px solid rgba(255, 255, 255, 0.86); background: rgba(255, 255, 255, 0.9); box-shadow: 0 18px 42px rgba(14, 73, 146, 0.22); z-index: 40; }

  #vr-skin.skin-school .vr-school-mobile-btn { width: 100%; height: 100%; border: 0; border-radius: 0; padding: 0; color: var(--school-ink); background: transparent; box-shadow: none; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; cursor: pointer; }
  #vr-skin.skin-school .vr-school-mobile-btn svg { width: 20px; height: 20px; }
  #vr-skin.skin-school .vr-school-mobile-btn span { display: block; font-size: 10px; line-height: 1.1; font-weight: 800; text-align: center; }
  #vr-skin.skin-school .vr-school-mobile-btn:hover,
  #vr-skin.skin-school .vr-school-mobile-btn.primary,
  #vr-skin.skin-school .vr-school-mobile-btn.active { color: var(--school-blue-2); background: transparent; box-shadow: none; transform: none; }
  #vr-skin.skin-school .vr-school-mobile-btn.disabled,
  #vr-skin.skin-school .vr-school-mobile-btn.disabled:hover { color: rgba(23, 35, 56, 0.34); background: transparent; box-shadow: none; cursor: default; pointer-events: none; }

  #vr-skin.skin-school #vr-school-mobile-cta { display: flex; align-items: center; justify-content: center; margin-top: 8px; padding: 8px 12px; border-radius: 999px; font-size: 11px; line-height: 1.2; text-align: center; }
  #vr-skin.skin-school #vr-school-campus > .vr-school-cta { display: none; }
  #vr-skin.skin-school .mascot-wrapper { right: 12px; bottom: 74px; display: flex; z-index: var(--mascot-zindex-mobile, var(--mascot-zindex, 18)); flex-direction: column; align-items: flex-end; gap: 8px; }
  #vr-skin.skin-school .mascot-wrapper.pos-left { left: 12px; right: auto; align-items: flex-start; }
  #vr-skin.skin-school #vr-mascot { width: 64px; }
  #vr-skin.skin-school #vr-school-playback { display: none; }
  #vr-skin.skin-school #vr-language-dropdown { top: auto !important; bottom: 75px !important; left: auto !important; right: 25vw !important; transform: none !important; flex-direction: column; border-radius: 14px; padding: 4px; min-width: 0; gap: 4px; z-index: 38; background: rgba(255,255,255,0.88); transition: none; }
  #vr-skin.skin-school #vr-language-dropdown .vr-lang-item { width: 44px; min-width: 44px; height: 44px; padding: 0; border-radius: 12px; flex: 0 0 auto; font-size: 12px; font-weight: 700; transition: none; }
  #vr-skin.skin-school #vr-minimap { width: calc(100% - 40px); }
  #vr-skin.skin-school.map-expanded-open #vr-minimap { inset: 0; width: 100%; height: 100%; max-height: 100%; bottom: auto; transform: none; border-radius: 0; }
  #vr-skin.skin-school.map-expanded-open #vr-logo,
  #vr-skin.skin-school.map-expanded-open #vr-infobar,
  #vr-skin.skin-school.map-expanded-open .mascot-wrapper { display: none; pointer-events: none; }
}
/* === Other Panels (Map, Info, Narration) === */
.vr-panel {
  position: absolute;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  pointer-events: auto;
  transition: opacity var(--anim-panel), transform var(--anim-panel);
  overflow: hidden;
  z-index: 15;
  display: flex;
  flex-direction: column;
}

.vr-panel.hidden {
  opacity: 0;
  pointer-events: none;
}

.vr-panel.hidden * {
  pointer-events: none !important;
}

/* Minimap */
#vr-minimap {
  right: 20px;
  bottom: 20px;
  width: 320px;
  height: 280px;
  z-index: 20;
  transform: translateX(0);
}

#vr-minimap.hidden { transform: translateX(calc(100% + 40px)); }

#vr-map-container {
  width: 100%;
  height: 100%;
}

/* Map overlay structure */
.vr-map-backdrop {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  cursor: pointer;
  z-index: 0;
}

.vr-map-inner {
  position: relative;
  width: 100%;
  height: 100%;
  z-index: 1;
  overflow: hidden;
  border-radius: inherit;
}

.vr-map-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 1000;
  display: flex;
  gap: 4px;
}

.vr-map-controls button {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s;
  padding: 0;
}

.vr-map-controls button svg {
  width: 14px;
  height: 14px;
}

.vr-map-controls button:hover { background: var(--color-primary); }

/* Map cluster icon */
.vr-map-cluster {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid rgba(255, 255, 255, 0.8);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  line-height: 24px;
  text-align: center;
  transition: background 0.25s, border-color 0.25s;
  box-sizing: border-box;
  cursor: pointer;
}

.vr-map-cluster-sm { background: rgba(100, 200, 70, 0.9);  border-color: rgba(255, 255, 255, 0.75); }
.vr-map-cluster-md { background: rgba(240, 185,  0, 0.9);  border-color: rgba(255, 255, 255, 0.75); }
.vr-map-cluster-lg { background: rgba(220,  75, 55, 0.9);  border-color: rgba(255, 255, 255, 0.75); }

/* Map expanded state: full map background */
#vr-skin.map-expanded-open #vr-minimap {
  inset: 0;
  width: 100%;
  height: 100%;
  right: auto;
  bottom: auto;
  border-radius: 0;
  z-index: 45;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: none;
}

#vr-skin.map-expanded-open .vr-map-backdrop {
  display: none;
}

#vr-skin.map-expanded-open .vr-map-inner {
  width: 100vw;
  height: 100vh;
  border-radius: 0;
  overflow: hidden;
  box-shadow: none;
}

#vr-skin.map-expanded-open #vr-map-container,
#vr-skin.map-expanded-open .leaflet-container {
  width: 100vw !important;
  height: 100vh !important;
  border-radius: 0;
}

#vr-skin.map-expanded-open #vr-navbar,
#vr-skin.map-expanded-open #vr-controls,
#vr-skin.map-expanded-open #vr-category,
#vr-skin.map-expanded-open #btn-sidebar-toggle,
#vr-skin.map-expanded-open #vr-list-scenes,
#vr-skin.map-expanded-open #vr-school-rail,
#vr-skin.map-expanded-open #vr-school-mobile-nav,
#vr-skin.map-expanded-open #vr-school-campus,
#vr-skin.map-expanded-open #vr-school-playback {
  z-index: 60;
  pointer-events: auto;
}

#vr-skin.map-expanded-open #vr-logo,
#vr-skin.map-expanded-open #vr-infobar,
#vr-skin.map-expanded-open .mascot-wrapper {
  display: none ;
  pointer-events: none ;
}

.vr-map-dot {
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  border: 2px solid var(--color-primary);
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}

.vr-map-dot:hover,
.vr-map-dot.active {
  background: var(--color-primary);
  border-color: rgba(255, 255, 255, 0.8);
  transform: scale(1.4);
}

/* Wrapper for dot + radar */
.vr-map-wrap {
  position: relative;
}

.vr-map-wrap .vr-map-dot {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.vr-map-wrap .vr-map-dot:hover,
.vr-map-wrap .vr-map-dot.active {
  transform: translate(-50%, -50%) scale(1.4);
}

/* Radar / heading cone */
.vr-map-radar {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 60px;
  height: 60px;
  margin-left: -30px;
  margin-top: -30px;
  clip-path: polygon(50% 50%, 15% 0%, 85% 0%);
  background: var(--color-primary);
  opacity: 0.5;
  transform-origin: 50% 50%;
  display: none;
  pointer-events: none;
  z-index: 1;
}

.vr-map-radar.active { display: block; }

/* Vietnamese sovereignty labels */
.vr-map-vn-label {
  background: rgba(201, 33, 39, 0.88);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 3px;
  white-space: nowrap;
  pointer-events: none;
  border: 1px solid rgba(255, 255, 255, 0.35);
  letter-spacing: 0.3px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.vr-map-pin {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.15s, transform 0.15s;
}
.vr-map-pin svg { width: 100%; height: 100%; display: block; }
.vr-map-pin:hover,
.vr-map-pin.active {
  color: var(--color-primary);
  transform: scale(1.2) translateY(-2px);
}

.vr-map-img { transition: transform 0.15s, filter 0.15s; }
.vr-map-img:hover,
.vr-map-img.active {
  transform: scale(1.2) translateY(-2px);
  filter: drop-shadow(0 0 4px var(--color-primary));
}

/* Info Modal — full-screen overlay */
#vr-info-panel {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: opacity var(--anim-panel);
}
#vr-info-panel.hidden {
  opacity: 0;
  pointer-events: none;
}
#vr-info-panel.hidden .vr-modal-box {
  transform: scale(0.96);
}
#vr-info-panel.hidden * {
  pointer-events: none !important;
}

.vr-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  cursor: pointer;
}

.vr-modal-box {
  position: relative;
  width: 92%;
  max-width: 680px;
  max-height: 80vh;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--anim-panel);
}

.vr-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px 2px;
  font-weight: 600;
  font-size: 15px;
  flex-shrink: 0;
}

.vr-info-tabs {
  display: flex;
  gap: 0;
  padding: 4px 20px 0;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.vr-tab-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.55);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s;
}
.vr-tab-btn:hover  { color: rgba(255, 255, 255, 0.85); }
.vr-tab-btn.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }

.vr-modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  -webkit-mask-image: linear-gradient(to bottom, transparent 0, black 20px, black calc(100% - 28px), transparent 100%);
  mask-image: linear-gradient(to bottom, transparent 0, black 20px, black calc(100% - 28px), transparent 100%);
}
.vr-modal-body::-webkit-scrollbar { width: 4px; }
.vr-modal-body::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); border-radius: 2px; }
.vr-modal-body::-webkit-scrollbar-track { background: transparent; }

.vr-tab-pane        { display: none; }
.vr-tab-pane.active { display: block; }

.vr-info-section { margin-bottom: 12px; }

#vr-info-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--color-text);
}
#vr-info-text p  { margin-bottom: 10px; }
#vr-info-text h2,
#vr-info-text h3 { margin-bottom: 6px; color: var(--color-primary); }

.vr-gallery-grid {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.vr-gallery-grid.active { display: grid; }

.vr-gallery-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  cursor: zoom-in;
  transition: opacity var(--anim-fade);
}
.vr-gallery-img:hover { opacity: 0.85; }

#vr-info-video iframe {
  display: block;
  width: 100%;
  height: 360px;
  border-radius: var(--radius-sm);
  border: none;
}

/* Multi-video gallery (13.3) */
.vr-video-gallery {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 12px;
  scrollbar-width: thin;
}
.vr-video-gallery::-webkit-scrollbar { height: 4px; }
.vr-video-gallery::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); border-radius: 2px; }
.vr-video-gallery::-webkit-scrollbar-track { background: transparent; }

.vr-video-thumb {
  position: relative;
  flex-shrink: 0;
  width: 140px;
  aspect-ratio: 16/9;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.2s;
  background: rgba(0,0,0,0.4);
}
.vr-video-thumb:hover { border-color: var(--color-primary); }
.vr-video-thumb.active { border-color: var(--color-primary); }
.vr-video-thumb img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.vr-video-play-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: rgba(255,255,255,0.85);
  text-shadow: 0 0 8px rgba(0,0,0,0.6);
  transition: color 0.15s;
}
.vr-video-thumb:hover .vr-video-play-icon { color: #fff; }
.vr-video-thumb.active .vr-video-play-icon { color: var(--color-primary); }

#vr-video-player-wrap iframe {
  display: block;
  width: 100%;
  height: 300px;
  border-radius: var(--radius-sm);
  border: none;
}

/* Uploaded video player (13.3) */
.vr-video-player {
  display: block;
  width: 100%;
  max-height: 360px;
  border-radius: var(--radius-sm);
  background: #000;
}

.vr-pdf-viewer {
  display: flex;
  flex-direction: column;
  height: min(70vh, 640px);
  min-height: 420px;
  gap: 10px;
}
.vr-pdf-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--color-text);
  font-size: 13px;
}
.vr-pdf-toolbar span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.vr-pdf-toolbar a {
  flex-shrink: 0;
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}
.vr-pdf-viewer iframe {
  flex: 1;
  width: 100%;
  border: 1px solid rgba(148,163,184,0.35);
  border-radius: var(--radius-sm);
  background: #fff;
}

/* Hide all UI when info modal is open */
#vr-skin.info-modal-open #vr-navbar,
#vr-skin.info-modal-open #vr-controls,
#vr-skin.info-modal-open #vr-infobar,
#vr-skin.info-modal-open #vr-category,
#vr-skin.info-modal-open #btn-sidebar-toggle,
#vr-skin.info-modal-open #vr-list-scenes,
#vr-skin.info-modal-open .mascot-wrapper,
#vr-skin.info-modal-open #vr-logo {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

/* Narration Panel */
#vr-narration {
  right: 16px;
  top: 50%;
  transform: translateY(-50%) translateX(0);
  width: 300px;
  max-height: 70vh;
}
#vr-narration.hidden { transform: translateY(-50%) translateX(20px); }

#vr-narration-items {
  overflow-y: auto;
  flex: 1;
  padding-bottom: 16px;
}

#vr-narration-items::-webkit-scrollbar { width: 4px; }
#vr-narration-items::-webkit-scrollbar-thumb { background: rgba(0, 0, 0, 0.15); border-radius: 2px; }
#vr-narration-items::-webkit-scrollbar-track { background: transparent; }

.vr-narration-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: background var(--anim-fade);
}
.vr-narration-row:hover { background: rgba(255,255,255,0.1); }
.vr-narration-row.playing { background: rgba(26,115,232,0.14); }

.vr-narration-title {
  flex: 1;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.vr-narration-btn {
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text);
  flex-shrink: 0;
  transition: background var(--anim-fade), border-color var(--anim-fade);
}
.vr-narration-btn:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-primary);
}
.vr-narration-btn svg { width: 12px; height: 12px; fill: currentColor; }

.vr-narration-settings {
  padding: 12px 16px;
  background: rgba(0,0,0,0.2);
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12px;
}
.vr-narration-settings label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--color-text-muted);
  cursor: pointer;
}
.vr-narration-settings input[type="checkbox"] { cursor: pointer; }
.vr-narration-settings .radio-group { display: flex; gap: 12px; }
.vr-narration-settings input[type="file"] { display: none; }
.vr-upload-btn {
  display: inline-block;
  padding: 4px 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  cursor: pointer;
  margin-right: 8px;
  margin-bottom: 8px;
  transition: background var(--anim-fade);
}
.vr-upload-btn:hover { background: rgba(255,255,255,0.2); }


/* === Lightbox === */
.vr-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.vr-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

/* === Hotspot Base === */
.vr-hotspot {
  position: absolute;
  cursor: pointer;
  transform-origin: center center;
}
.vr-hotspot-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,0,0,0.85);
  color: #fff;
  font-size: 11px;
  white-space: nowrap;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
  z-index: 100;
}
.vr-hotspot-tooltip.visible { opacity: 1; }

/* Hotspot: Pulse (hs_location) */
.hs-pulse {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hs-pulse-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary);
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 2px rgba(255,255,255,0.3);
  transition: transform 0.15s;
}
.hs-pulse:hover .hs-pulse-dot { transform: scale(1.25); }
.hs-pulse-ring {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  animation: vr-pulse 1.8s ease-out infinite;
  pointer-events: none;
}
@keyframes vr-pulse {
  0%   { transform: scale(0.8); opacity: 0.9; }
  100% { transform: scale(2.4); opacity: 0; }
}


/* Hotspot: Callout (ht_callout) */
.hs-callout { pointer-events: auto; }
.hs-callout-label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px 6px 10px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 4px;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  transition: transform 0.15s, background 0.15s;
}
.hs-callout:hover .hs-callout-label {
  background: rgba(0,0,0,0.9);
  transform: scale(1.05);
}
.hs-callout-arrow { color: var(--color-primary); flex-shrink: 0; }

/* Hotspot: Circle (ht_node) */
.hs-circle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.hs-circle-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  border: 2px solid rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

/* === Intro Screen === */
#vr-intro {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
  transition: opacity 0.4s ease;
}
#vr-intro.vr-intro-exit {
  opacity: 0;
  pointer-events: none;
}

.vr-intro-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary, #1a73e8) 0%, #000 100%);
  background-size: cover;
  background-position: center;
}
.vr-intro-dim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45); /* overridden by JS via introCfg.background.overlayOpacity */
}

.vr-intro-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 48px;
  max-width: min(720px, 92vw);
  text-align: center;
  color: #fff;
}

.vr-intro-logo {
  max-width: 140px;
  max-height: 140px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.4));
}

.vr-intro-greeting {
  font-size: 22px;
  font-weight: 500;
  opacity: 0.9;
  margin: 0;
  -webkit-font-smoothing: subpixel-antialiased;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
}

.vr-intro-title {
  font-size: clamp(28px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.15;
  margin: 0;
  -webkit-font-smoothing: subpixel-antialiased;
  text-shadow: 0 2px 12px rgba(0,0,0,0.6);
}

.vr-intro-cta-text {
  display: inline-block;
  /* JS apply background-clip: text khi textColor là gradient */
}

.vr-intro-cta {
  margin-top: 8px;
  padding: 16px 40px;
  border-radius: var(--radius-pill, 9999px);
  background: var(--color-primary, #1a73e8); /* overridden by JS via ctaButton.background */
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  min-height: 52px;
}
.vr-intro-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
}
.vr-intro-cta:active {
  transform: translateY(0);
}

.vr-intro-langs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}
.vr-intro-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill, 9999px);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  min-height: 40px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.vr-intro-lang-btn:hover {
  background: rgba(255, 255, 255, 0.28);
}
.vr-intro-lang-btn.active {
  background: var(--color-primary, #1a73e8);
  border-color: transparent;
}
.vr-intro-lang-flag {
  font-size: 18px;
  line-height: 1;
}

/* Tablet */
@media (max-width: 1024px) {
  .vr-intro-content { gap: 20px; padding: 32px 24px; }
  .vr-intro-logo    { max-width: 110px; max-height: 110px; }
  .vr-intro-greeting{ font-size: 18px; }
  .vr-intro-cta     { padding: 14px 36px; font-size: 17px; }
}

/* Mobile portrait */
@media (max-width: 600px) {
  .vr-intro-content  { gap: 16px; padding: 24px 16px; }
  .vr-intro-logo     { max-width: 88px; max-height: 88px; }
  .vr-intro-greeting { font-size: 16px; }
  .vr-intro-title    { font-size: clamp(22px, 7vw, 36px); }
  .vr-intro-cta      { padding: 14px 32px; font-size: 16px; width: 100%; max-width: 320px; }
  .vr-intro-lang-btn { padding: 6px 12px; font-size: 13px; }
}

/* Mobile landscape — compact để tránh overflow */
@media (max-height: 480px) and (orientation: landscape) {
  .vr-intro-content  { gap: 8px; padding: 12px 20px; }
  .vr-intro-logo     { max-width: 56px; max-height: 56px; }
  .vr-intro-greeting { font-size: 14px; }
  .vr-intro-title    { font-size: clamp(18px, 4vw, 28px); }
  .vr-intro-cta      { padding: 10px 28px; font-size: 15px; min-height: 44px; }
}

/* Khi intro đang hiển thị → ẩn skin UI + hotspots bên dưới (giữ canvas pano2vr).
   Class được toggle trên player.divSkin (parent của #vr-skin và hotspot DOM elements). */
.vr-intro-hide-skin > * {
  visibility: hidden !important;
  pointer-events: none !important;
}
.hs-circle:hover .hs-circle-icon {
  transform: scale(1.12);
  border-color: var(--color-primary);
  box-shadow: 0 0 12px rgba(26,115,232,0.6);
}
.hs-circle-label {
  font-size: 11px;
  color: #fff;
  text-align: center;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 4px rgba(0,0,0,0.9);
}

/* Hotspot: Default (fallback) */
.hs-default {
  width: 16px;
  height: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hs-default-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 1px solid rgba(255,255,255,0.5);
}

/* Tablet (< 1200px): move map up to avoid covering navbar, disable showInitially */
@media (max-width: 1199px) {
  #vr-minimap {
    bottom: 90px;
  }
}
  box-shadow: 0 12px 30px rgba(5, 55, 105, 0.24);
}

#vr-skin.skin-school #vr-infobar .breadcrumb-tag {
  color: #fff;
  font-size: 14px;
  font-weight: 800;
  text-transform: none;
  letter-spacing: 0;
}

#vr-skin.skin-school #vr-infobar .scene-title {
  display: block;
}

#vr-skin.skin-school .vr-school-campus-tab.active {
  color: #fff;
  background: var(--school-blue);
}

#vr-skin.skin-school .vr-school-cta {
  height: 46px;
  min-width: 168px;
  margin-left: -5px;
  border-radius: 999px;
  color: #fff;
  background: linear-gradient(135deg, #287dff, #864bff);
  box-shadow: 0 12px 28px rgba(80, 64, 220, 0.26);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  text-decoration: none;
  font-size: 13px;
  font-weight: 900;
}

#vr-skin.skin-school #vr-school-mobile-nav {
@media (max-width: 699px) {
  #vr-skin.skin-school #vr-infobar {
    top: 70px ;
    left: 12px ;
    right: 12px ;
    width: auto ;
    min-width: 0 ;
    max-width: none ;
    min-height: 40px ;
    transform: none ;
    border-radius: 999px ;
    padding: 7px 14px ;
  }

  #vr-skin.skin-school #vr-infobar .breadcrumb-tag {
    display: block;
    max-width: 100%;
    white-space: nowrap;
  }
}

/* School style pass: align controls with the light glass/cyan look of the school reference. */
#vr-skin.skin-school #vr-infobar {
  top: 22px ;
  left: 50% ;
  right: auto ;
  transform: translateX(-50%) ;
  min-width: 220px ;
  max-width: min(520px, calc(100vw - 560px)) ;
  min-height: 38px ;
  border-radius: 999px ;
  border: 1px solid rgba(255, 255, 255, 0.84) ;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(87, 209, 255, 0.52)) ;
  box-shadow: 0 14px 34px rgba(24, 94, 170, 0.2) ;
}

#vr-skin.skin-school #vr-infobar,
#vr-skin.skin-school #vr-infobar .breadcrumb-tag,
#vr-skin.skin-school #vr-infobar .scene-title {
  color: var(--school-blue) ;
}

#vr-skin.skin-school #vr-infobar .infobar-dot {
  background: var(--school-accent) ;
  box-shadow: 0 0 14px color-mix(in srgb, var(--school-accent) 55%, transparent) ;
}


#vr-skin.skin-school .vr-category-item,
#vr-skin.skin-school .vr-school-scene-item {
  min-height: 52px ;
  margin: 0 0 8px ;
  padding: 0 16px ;
  border-radius: 15px ;
  background: rgba(255, 255, 255, 0.66) ;
  color: #172338 ;
}

#vr-skin.skin-school .vr-category-item:nth-child(odd):not(.active),
#vr-skin.skin-school .vr-school-scene-item:nth-child(odd):not(.active) {
  background: rgba(238, 247, 250, 0.76) ;
}

#vr-skin.skin-school .vr-category-item.active,
#vr-skin.skin-school .vr-school-scene-item.active {
  color: #fff ;
  background: linear-gradient(135deg, var(--school-blue), var(--school-cyan)) ;
}

#vr-skin.skin-school .vr-category-item.active .vr-category-badge,
#vr-skin.skin-school .vr-category-item.active .icon-slot,
#vr-skin.skin-school .vr-school-scene-item.active .vr-school-scene-num {
  color: #fff ;
}

@media (max-width: 699px) {
  #vr-skin.skin-school #vr-infobar {
    top: 70px ;
    left: 12px ;
    right: 12px ;
    transform: none ;
    min-width: 0 ;
    max-width: none ;
    min-height: 40px ;
  }

  #vr-skin.skin-school #vr-category {
    border-radius: 24px 24px 0 0 ;
  }
}

/* === School Phase 2 Layout === */
#vr-skin.skin-school {
  --school-blue: var(--brand-primary, #0b5596);
  --school-blue-2: var(--brand-primary, #1678ff);
  --school-cyan: var(--brand-secondary, #35dff2);
  --school-accent: var(--brand-accent, #ffd261);
  --school-ink: #172338;
  --school-glass: rgba(255, 255, 255, 0.9);
  --school-line: rgba(255, 255, 255, 0.82);
  --school-shadow: 0 18px 42px rgba(14, 73, 146, 0.22);
  font-family: var(--brand-font, Inter, system-ui, sans-serif);
}

#vr-skin.skin-school * {
  font-family: inherit;
}

#vr-skin.skin-school #vr-navbar,
#vr-skin.skin-school #vr-controls,
#vr-skin.skin-school #vr-list-scenes {
  display: none ;
}

#vr-skin.skin-school #vr-school-rail {
  position: absolute;
  left: 20px;
  top: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: auto;
  z-index: 28;
}

#vr-skin.skin-school .vr-school-rail-btn {
  position: static;
  width: 50px;
  height: 50px;
  border-radius: 13px;
  border: 1px solid var(--school-line);
  background: var(--school-glass);
  color: var(--school-blue);
  box-shadow: 0 12px 28px rgba(18, 85, 146, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
}

#vr-skin.skin-school #vr-school-rail #btn-school-menu {
  position: static;
  top: auto;
  left: auto;
  transform: none;
  width: 50px;
  height: 50px;
  min-width: 50px;
  padding: 0;
}

#vr-skin.skin-school .vr-school-rail-btn.primary,
#vr-skin.skin-school .vr-school-rail-btn.active {
  background: linear-gradient(135deg, var(--school-accent), var(--school-cyan));
}

#vr-skin.skin-school .vr-school-rail-btn svg {
  width: 23px;
  height: 23px;
}

#vr-skin.skin-school #vr-category {
  left: 100px;
  top: 20px;
  width: 332px;
  height: calc(100vh - 134px);
  max-height: 720px;
  max-width: calc(100vw - 132px);
  border-radius: 8px 8px 0 0;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--school-line);
  box-shadow: var(--school-shadow);
  backdrop-filter: blur(18px) saturate(170%);
  -webkit-backdrop-filter: blur(18px) saturate(170%);
  overflow: hidden;
  z-index: 24;
}

#vr-skin.skin-school #vr-category.hidden {
  transform: translateX(calc(-100% - 120px));
}

#vr-skin.skin-school #btn-sidebar-toggle {
  display: none ;
}

#vr-skin.skin-school #vr-category .vr-panel-header {
  position: relative;
  min-height: 70px;
  padding: 12px 42px 12px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: #fff;
  background: linear-gradient(135deg, #065095, #083e7d);
  border-bottom: 0;
  text-align: center;
}

#vr-skin.skin-school .vr-school-header-title {
  max-width: 100%;
  color: inherit;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.24;
  text-transform: none;
  overflow-wrap: anywhere;
}

#vr-skin.skin-school #vr-category .proj-name {
  color: rgba(255, 255, 255, 0.82);
  font-size: 11px;
  font-weight: 700;
  margin: 0;
}

#vr-skin.skin-school #btn-school-close,
#vr-skin.skin-school #btn-school-back {
  position: absolute;
  top: 50%;
  width: 32px;
  height: 32px;
  border: 0;
  border-radius: 999px;
  transform: translateY(-50%);
  color: #fff;
  background: transparent;
  cursor: pointer;
  font-size: 26px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

#vr-skin.skin-school #btn-school-close {
  right: 10px;
}

#vr-skin.skin-school #btn-school-back {
  left: 10px;
}

#vr-skin.skin-school #btn-school-close:hover,
#vr-skin.skin-school #btn-school-back:hover {
  background: rgba(255, 255, 255, 0.16);
}

#vr-skin.skin-school #vr-category-items {
  height: calc(100% - 70px);
  overflow-y: auto;
  padding: 0 0 22px;
  gap: 0;
}

#vr-skin.skin-school .vr-category-item,
#vr-skin.skin-school .vr-school-scene-item {
  min-height: 49px;
  margin: 0;
  padding: 0 18px 0 30px;
  border: 0;
  border-radius: 0;
  background: rgba(255, 255, 255, 0.72);
  color: var(--school-blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

#vr-skin.skin-school .vr-category-item:nth-child(odd):not(.active),
#vr-skin.skin-school .vr-school-scene-item:nth-child(odd):not(.active) {
  background: rgba(237, 247, 250, 0.78);
}

#vr-skin.skin-school .vr-category-item:hover,
#vr-skin.skin-school .vr-school-scene-item:hover {
  background: rgba(223, 242, 250, 0.94);
  transform: none;
}

#vr-skin.skin-school .vr-category-item.active,
#vr-skin.skin-school .vr-school-scene-item.active {
  color: var(--school-blue);
  background: linear-gradient(90deg, rgba(255, 207, 69, 0.72), rgba(255, 255, 255, 0.6));
  box-shadow: none;
}

#vr-skin.skin-school .vr-category-left-section {
  min-width: 0;
}

#vr-skin.skin-school .vr-category-label,
#vr-skin.skin-school .vr-school-scene-title {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: 1.35;
  white-space: normal;
  overflow-wrap: anywhere;
}

#vr-skin.skin-school .vr-school-scene-num {
  color: var(--school-blue);
  font-weight: 900;
  flex: 0 0 auto;
}

#vr-skin.skin-school .vr-category-badge {
  color: var(--school-blue-2);
  font-size: 12px;
  font-weight: 900;
}

#vr-skin.skin-school .icon-slot {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: rgba(32, 121, 255, 0.12);
  color: var(--school-blue-2);
}

#vr-skin.skin-school .vr-school-empty {
  padding: 18px;
  color: var(--school-ink);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

#vr-skin.skin-school #vr-infobar {
  top: 0;
  min-width: 210px;
  max-width: min(520px, calc(100vw - 560px));
  min-height: 36px;
  padding: 8px 20px;
  border-radius: 0 0 10px 10px;
  color: #fff;
  background: linear-gradient(135deg, #0e5ca0, #06427c);
  border: 0;