/* ══════════════════════════════════════════════════════════════
   ARID FOUNDATION — Complete UI Stylesheet
   Theme: Architectural Blueprint meets Dark Luxury
══════════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Colors */
  --bg-deep:          #050a14;
  --bg-surface:       #0a1020;
  --bg-card:          rgba(255,255,255,0.04);
  --bg-card-hover:    rgba(255,255,255,0.07);
  --border-subtle:    rgba(255,255,255,0.08);
  --border-accent:    rgba(255,255,255,0.14);

  --amber:            #f59e0b;
  --amber-light:      #fbbf24;
  --amber-glow:       rgba(245,158,11,0.20);
  --blue-steel:       #60a5fa;
  --blue-glow:        rgba(96,165,250,0.15);

  --text-primary:     #e2e8f0;
  --text-secondary:   #94a3b8;
  --text-muted:       #475569;

  /* Floor Colors */
  --floor-0:          #10b981;
  --floor-1:          #3b82f6;
  --floor-2:          #f59e0b;
  --floor-3:          #8b5cf6;

  /* Transitions */
  --ease-out-quart:   cubic-bezier(0.25, 1, 0.5, 1);
  --ease-panel:       cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --header-h:         60px;
  --sidebar-w:        180px;
  --panel-w:          340px;
  --minimap-w:        220px;
}

/* ─── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Canvas Container ───────────────────────────────────────── */
#canvas-container {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#canvas-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  /* Canvas MUST NOT block pointer events for UI buttons on top */
  pointer-events: auto;
}

/* CSS2DRenderer overlay */
#canvas-container > div {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

/* ─── Utility ────────────────────────────────────────────────── */
/* NOTE: .hidden uses display:none for true hiding.                  */
/* Exception: #header-bar, #floor-nav, #controls-hud use opacity    */
/* transitions and override .hidden themselves (see below).          */
.hidden { display: none; }
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--border-subtle);
}

/* ─── Loading Screen ─────────────────────────────────────────── */
.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-deep);
  transition: opacity 0.8s var(--ease-out-quart);
}

.loading-screen.fade-out {
  opacity: 0;
  pointer-events: none;
}

.loading-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96,165,250,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,165,250,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  animation: gridPulse 4s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.loading-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.loading-logo {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 8px;
}

.logo-ar {
  font-family: var(--font-arabic);
  font-size: 52px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 2px;
  text-shadow: 0 0 40px var(--amber-glow);
  animation: logoGlow 2s ease-in-out infinite alternate;
}

@keyframes logoGlow {
  from { text-shadow: 0 0 20px rgba(245,158,11,0.3); }
  to   { text-shadow: 0 0 60px rgba(245,158,11,0.7), 0 0 100px rgba(245,158,11,0.3); }
}

.logo-divider {
  width: 2px;
  height: 50px;
  background: linear-gradient(to bottom, transparent, var(--amber), transparent);
}

.logo-en {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 6px;
  text-transform: uppercase;
}

.loading-tagline {
  font-family: var(--font-arabic);
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  opacity: 0.9;
  direction: rtl;
}

.loading-tagline-en {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.loading-bar-wrapper {
  width: 280px;
  height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}

.loading-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--amber), var(--amber-light));
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--amber);
}

.loading-status {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  font-family: 'Courier New', monospace;
  min-height: 16px;
}

/* ─── Header Bar ─────────────────────────────────────────────── */
.header-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 20px;
  background: rgba(5,10,20,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.header-bar.hidden {
  display: flex;   /* keep in layout for smooth transition */
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.header-left {
  flex: 1;
  display: flex;
  align-items: center;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-ar-sm {
  font-family: var(--font-arabic);
  font-size: 20px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: 1px;
}

.logo-sep {
  color: var(--text-muted);
  font-weight: 300;
}

.logo-en-sm {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.header-center {
  flex: 2;
  text-align: center;
}

.header-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
  transition: color 0.3s ease;
}

.header-subtitle {
  font-size: 11px;
  color: var(--text-secondary);
  letter-spacing: 2px;
  margin-top: 1px;
}

.header-right {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.btn-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-display);
  letter-spacing: 0.5px;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  color: var(--amber);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.btn-icon:active {
  transform: translateY(0);
}

/* ─── Floor Navigator Sidebar ────────────────────────────────── */
.floor-nav {
  position: fixed;
  top: var(--header-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.floor-nav.hidden {
  display: flex;  /* keep in layout for transition */
  opacity: 0;
  transform: translateX(-20px);
  pointer-events: none;
}

.floor-nav-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 12px;
  background: rgba(5,10,20,0.80);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  width: calc(var(--sidebar-w) - 20px);
}

.floor-nav-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 0 6px;
  margin-bottom: 4px;
}

.floor-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 10px 10px 8px;
  border: 1px solid transparent;
  background: transparent;
  border-radius: 10px;
  cursor: pointer;
  color: var(--text-secondary);
  text-align: left;
  transition: all 0.25s var(--ease-out-quart);
  overflow: hidden;
}

.floor-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 70%;
  background: var(--amber);
  border-radius: 0 2px 2px 0;
  transition: transform 0.25s var(--ease-panel);
}

.floor-btn:hover {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-subtle);
  color: var(--text-primary);
  transform: translateX(3px);
}

.floor-btn:hover::before {
  transform: translateY(-50%) scaleY(0.6);
}

.floor-btn.active {
  background: rgba(245,158,11,0.08);
  border-color: rgba(245,158,11,0.2);
  color: var(--text-primary);
}

.floor-btn.active::before {
  transform: translateY(-50%) scaleY(1);
}

.floor-btn-level {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 800;
  color: var(--amber);
  min-width: 24px;
  text-align: center;
  letter-spacing: 0.5px;
}

.floor-btn-level.all {
  font-size: 18px;
  color: var(--blue-steel);
}

.floor-btn.active .floor-btn-level { color: var(--amber-light); }

.floor-btn-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.floor-btn-name {
  font-size: 12px;
  font-weight: 600;
  color: inherit;
  font-family: var(--font-display);
}

.floor-btn-sub {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 400;
}

.floor-btn-icon {
  font-size: 14px;
  opacity: 0.6;
}

.floor-btn.active .floor-btn-icon { opacity: 1; }

.floor-nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 0;
}

.floor-btn-all .floor-btn-level { color: var(--blue-steel); }
.floor-btn-all.active {
  background: rgba(96,165,250,0.08);
  border-color: rgba(96,165,250,0.2);
}
.floor-btn-all.active::before { background: var(--blue-steel); }

/* ─── Info Panel ─────────────────────────────────────────────── */
.info-panel {
  position: fixed;
  top: var(--header-h);
  right: 0;
  bottom: 0;
  width: var(--panel-w);
  z-index: 90;
  background: rgba(5,10,20,0.90);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-left: 1px solid var(--border-subtle);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.34, 1.2, 0.64, 1);
  display: flex;
  flex-direction: column;
}

.info-panel.open {
  transform: translateX(0);
  box-shadow: -20px 0 60px rgba(0,0,0,0.5);
}

.info-accent-strip {
  height: 4px;
  width: 100%;
  background: var(--amber);
  transition: background 0.4s ease;
  flex-shrink: 0;
}

.info-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  color: var(--text-secondary);
  border-radius: 8px;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 2;
  backdrop-filter: blur(8px);
}

.info-close:hover {
  background: rgba(239,68,68,0.15);
  border-color: rgba(239,68,68,0.3);
  color: #ef4444;
  transform: rotate(90deg);
}

.info-panel-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-accent) transparent;
}

.info-panel-scroll::-webkit-scrollbar {
  width: 4px;
}

.info-panel-scroll::-webkit-scrollbar-track {
  background: transparent;
}

.info-panel-scroll::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: 2px;
}

.info-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 12px 0 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

.info-icon {
  font-size: 40px;
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(255,255,255,0.2));
}

.info-names {
  flex: 1;
}

.info-name-en {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.info-name-ar {
  font-family: var(--font-arabic);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  direction: rtl;
}

.info-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.info-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.info-badge svg { opacity: 0.7; }

.info-badge-floor {
  background: rgba(245,158,11,0.08);
  border-color: rgba(245,158,11,0.2);
  color: var(--amber);
}

.info-description {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.info-services {
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
}

.info-services-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.info-services-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-services-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-secondary);
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  transition: all 0.2s ease;
}

.info-services-list li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 50%;
  flex-shrink: 0;
}

.info-services-list li:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  transform: translateX(4px);
}

.info-floor-indicator {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: center;
}

.floor-indicator-dots {
  display: flex;
  gap: 8px;
}

.fi-dot {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-display);
  transition: all 0.3s ease;
  cursor: pointer;
}

.fi-dot.active {
  background: var(--amber-glow);
  border-color: var(--amber);
  color: var(--amber);
  box-shadow: 0 0 10px var(--amber-glow);
}

/* ─── Hover Tooltip ──────────────────────────────────────────── */
.hover-tooltip {
  position: fixed;
  z-index: 200;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(5,10,20,0.95);
  border: 1px solid var(--border-accent);
  border-radius: 10px;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  transition: opacity 0.15s ease;
  max-width: 200px;
}

.hover-tooltip.hidden {
  display: flex;  /* keep in layout for opacity transition */
  opacity: 0;
}

#tooltip-icon {
  font-size: 18px;
}

.tooltip-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#tooltip-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-display);
  white-space: nowrap;
}

#tooltip-area {
  font-size: 11px;
  color: var(--amber);
  font-weight: 500;
}

/* ─── CSS2D Building Labels ──────────────────────────────────── */
.building-label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: rgba(5,10,20,0.80);
  border: 1px solid var(--border-subtle);
  border-radius: 20px;
  backdrop-filter: blur(8px);
  pointer-events: none;
  transition: opacity 0.3s ease;
  white-space: nowrap;
}

.building-label .bl-icon {
  font-size: 13px;
}

.building-label .bl-name {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.building-label .bl-name-ar {
  font-family: var(--font-arabic);
  font-size: 10px;
  color: var(--text-secondary);
  direction: rtl;
}

/* ─── Minimap ────────────────────────────────────────────────── */
.minimap-container {
  position: fixed;
  bottom: 80px;
  right: 16px;
  z-index: 90;
  background: rgba(5,10,20,0.90);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.minimap-container.hidden {
  display: flex; /* keep layout for transition */
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

.minimap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.minimap-header span {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.minimap-toggle-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  transition: color 0.2s ease;
}

.minimap-toggle-btn:hover { color: var(--amber); }

.minimap-body {
  padding: 8px;
  transition: height 0.3s ease, opacity 0.3s ease;
}

.minimap-body.collapsed {
  height: 0;
  padding: 0;
  opacity: 0;
  overflow: hidden;
}

#minimap-svg {
  width: var(--minimap-w);
  height: auto;
  display: block;
}

.mm-zone {
  cursor: pointer;
  transition: opacity 0.2s ease;
  rx: 2;
}

.mm-zone:hover { opacity: 0.8; filter: brightness(1.4); }
.mm-zone.selected {
  stroke: var(--amber);
  stroke-width: 1.5;
  filter: brightness(1.5);
}

.mm-label {
  font-size: 5px;
  fill: rgba(226,232,240,0.5);
  text-anchor: middle;
  dominant-baseline: middle;
  pointer-events: none;
  font-family: sans-serif;
}

/* ─── Controls HUD ───────────────────────────────────────────── */
.controls-hud {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 80;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: rgba(5,10,20,0.80);
  border: 1px solid var(--border-subtle);
  border-radius: 24px;
  backdrop-filter: blur(12px);
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  transition: opacity 1s ease;
}

.controls-hud.hidden {
  display: flex;  /* keep in layout for transition */
  opacity: 0;
  pointer-events: none;
}

.hud-sep {
  color: var(--text-muted);
}

/* ─── Deep Dive Overlay ──────────────────────────────────────── */
.deep-dive-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,10,20,0.70);
  backdrop-filter: blur(8px);
  transition: opacity 0.4s ease;
}

.deep-dive-overlay.hidden {
  display: flex;  /* keep layout for opacity transition */
  opacity: 0;
  pointer-events: none;
}

.deep-dive-content {
  position: relative;
  width: 500px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  background: rgba(10,16,32,0.98);
  border: 1px solid var(--border-accent);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.7);
  scrollbar-width: thin;
  scrollbar-color: var(--border-accent) transparent;
  animation: deepDiveIn 0.4s var(--ease-panel);
}

@keyframes deepDiveIn {
  from { transform: scale(0.92) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}

.deep-dive-back {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-body);
  transition: all 0.2s ease;
  margin-bottom: 24px;
}

.deep-dive-back:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.deep-dive-icon {
  font-size: 64px;
  text-align: center;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 20px rgba(255,255,255,0.2));
}

.deep-dive-content h2 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 6px;
}

.deep-dive-name-ar {
  font-family: var(--font-arabic);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  direction: rtl;
  margin-bottom: 24px;
}

.deep-dive-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.dd-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
}

.dd-stat-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.dd-stat-value {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--amber);
}

.deep-dive-desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-align: center;
}

.deep-dive-services {
  border-top: 1px solid var(--border-subtle);
  padding-top: 20px;
}

.deep-dive-services h3 {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 12px;
  text-align: center;
}

#deep-dive-services-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

#deep-dive-services-list li {
  padding: 8px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  font-family: var(--font-arabic);
  direction: rtl;
}

/* ─── Floor Isolation Transition ─────────────────────────────── */
.floor-isolating .non-active-floor {
  animation: floorSink 0.6s ease forwards;
}

@keyframes floorSink {
  to { transform: translateY(-150px); opacity: 0; }
}

/* ─── Scroll-in Animations ───────────────────────────────────── */
@keyframes slideInRight {
  from { transform: translateX(30px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

@keyframes slideInLeft {
  from { transform: translateX(-30px); opacity: 0; }
  to   { transform: translateX(0);     opacity: 1; }
}

@keyframes fadeUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ─── Day/Night Mode ─────────────────────────────────────────── */
body.day-mode {
  --bg-deep: #e8f0fe;
  --bg-surface: #d0ddf5;
}

body.day-mode .header-bar,
body.day-mode .floor-nav-inner,
body.day-mode .info-panel,
body.day-mode .minimap-container,
body.day-mode .controls-hud {
  background: rgba(240,248,255,0.92);
  border-color: rgba(0,0,0,0.10);
}

body.day-mode .header-title,
body.day-mode .floor-btn-name,
body.day-mode .info-name-en {
  color: #1e293b;
}

body.day-mode .header-subtitle,
body.day-mode .floor-btn-sub,
body.day-mode .info-description {
  color: #475569;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  :root {
    --sidebar-w: 60px;
    --panel-w: 100vw;
  }

  .floor-btn-info { display: none; }
  .floor-btn-icon { display: none; }

  .floor-nav-label { display: none; }

  .header-center { display: none; }

  .info-panel {
    top: auto;
    bottom: 0;
    right: 0;
    left: 0;
    width: 100%;
    height: 60vh;
    border-left: none;
    border-top: 1px solid var(--border-subtle);
    border-radius: 20px 20px 0 0;
    transform: translateY(100%);
  }

  .info-panel.open {
    transform: translateY(0);
  }

  .minimap-container {
    display: none;
  }

  #deep-dive-services-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  :root { --header-h: 50px; }

  .logo-ar-sm { font-size: 16px; }
  .logo-en-sm { font-size: 11px; }

  .floor-btn {
    padding: 12px 8px;
    justify-content: center;
  }

  .floor-btn-level { min-width: auto; }

  .controls-hud {
    font-size: 10px;
    padding: 8px 14px;
    gap: 8px;
  }
}

/* ─── Pulse Animation for Selected Building ──────────────────── */
@keyframes buildingPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.85; }
}

/* ─── Stagger Entrance Animations ───────────────────────────── */
.ui-stagger-1 { animation: fadeUp 0.5s 0.1s ease both; }
.ui-stagger-2 { animation: fadeUp 0.5s 0.2s ease both; }
.ui-stagger-3 { animation: fadeUp 0.5s 0.3s ease both; }
.ui-stagger-4 { animation: fadeUp 0.5s 0.4s ease both; }
.ui-stagger-5 { animation: fadeUp 0.5s 0.5s ease both; }

/* ─── Focus States (Accessibility) ──────────────────────────── */
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ─── Selection ──────────────────────────────────────────────── */
::selection {
  background: var(--amber-glow);
  color: var(--text-primary);
}

/* ════════════════════════════════════════════════════════════════
   INTERIOR WALK MODE — First Person HUD
════════════════════════════════════════════════════════════════ */

/* ─── Interior HUD wrapper ───────────────────────────────────── */
#interior-hud {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  transition: opacity 0.5s ease;
}

#interior-hud.hidden {
  display: flex;  /* keep layout for opacity transition */
  opacity: 0;
  pointer-events: none;
}

/* ─── Top bar: building name + room name ─────────────────────── */
#interior-top-bar {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: linear-gradient(to bottom, rgba(5,10,20,0.85), transparent);
  pointer-events: auto;
}

.interior-building-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

#interior-building-icon {
  font-size: 28px;
  filter: drop-shadow(0 0 8px rgba(245,158,11,0.5));
}

.interior-names {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

#interior-building-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 1px;
}

#interior-room-name {
  font-size: 12px;
  color: var(--amber);
  font-weight: 500;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
}

#interior-room-name-ar {
  font-family: var(--font-arabic);
  font-size: 11px;
  color: var(--text-secondary);
  direction: rtl;
}

/* ─── Exit button ────────────────────────────────────────────── */
#interior-exit-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 10px;
  color: #f87171;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  pointer-events: auto;
  transition: all 0.2s ease;
  backdrop-filter: blur(8px);
  letter-spacing: 0.5px;
}

#interior-exit-btn:hover {
  background: rgba(239,68,68,0.22);
  border-color: rgba(239,68,68,0.5);
  color: #fca5a5;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(239,68,68,0.2);
}

#interior-exit-btn svg {
  flex-shrink: 0;
}

/* ─── Centre crosshair ───────────────────────────────────────── */
#interior-crosshair {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  pointer-events: none;
}

#interior-crosshair::before,
#interior-crosshair::after {
  content: '';
  position: absolute;
  background: rgba(255,255,255,0.7);
  border-radius: 1px;
}

#interior-crosshair::before {
  width: 2px;
  height: 100%;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 4px rgba(255,255,255,0.4);
}

#interior-crosshair::after {
  height: 2px;
  width: 100%;
  top: 50%;
  transform: translateY(-50%);
  box-shadow: 0 0 4px rgba(255,255,255,0.4);
}

/* ─── Bottom bar: movement controls + minimap ────────────────── */
#interior-bottom-bar {
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  padding: 0 20px 16px;
  background: linear-gradient(to top, rgba(5,10,20,0.8), transparent);
  pointer-events: auto;
}

/* ─── WASD key hints ─────────────────────────────────────────── */
.wasd-hints {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  opacity: 0.7;
}

.wasd-row {
  display: flex;
  gap: 3px;
}

.key-cap {
  width: 30px;
  height: 30px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-secondary);
  transition: all 0.1s ease;
  box-shadow: 0 2px 0 rgba(0,0,0,0.4);
}

.key-cap.active,
.key-cap.pressed {
  background: rgba(245,158,11,0.2);
  border-color: var(--amber);
  color: var(--amber);
  transform: translateY(1px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.4);
}

.key-cap.wide { width: 66px; }

/* ─── Interior minimap ───────────────────────────────────────── */
#interior-minimap {
  position: relative;
  background: rgba(5,10,20,0.90);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  padding: 6px;
  backdrop-filter: blur(12px);
}

#interior-minimap-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: 4px;
}

#interior-minimap-svg {
  display: block;
  width: 160px;
  height: 120px;
}

/* Player dot on minimap */
#interior-player-dot {
  transition: transform 0.1s ease;
}

/* ─── Room tooltip popup ─────────────────────────────────────── */
#room-entry-toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  z-index: 210;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  background: rgba(5,10,20,0.95);
  border: 1px solid var(--border-accent);
  border-left: 3px solid var(--amber);
  border-radius: 10px;
  backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  min-width: 220px;
  max-width: 320px;
}

#room-entry-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast-icon { font-size: 22px; }

.toast-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toast-name-en {
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.toast-name-ar {
  font-family: var(--font-arabic);
  font-size: 12px;
  color: var(--text-secondary);
  direction: rtl;
}

.toast-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  line-height: 1.4;
}

/* ─── Pointer lock overlay ───────────────────────────────────── */
#pointer-lock-prompt {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(5,10,20,0.88);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: opacity 0.3s ease;
}

#pointer-lock-prompt.hidden {
  display: flex;  /* keep layout for transition */
  opacity: 0;
  pointer-events: none;
}

.pointer-lock-icon {
  font-size: 52px;
  animation: bounceY 1.5s ease-in-out infinite;
}

@keyframes bounceY {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

.pointer-lock-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
}

.pointer-lock-sub {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
  max-width: 300px;
  line-height: 1.6;
}

.pointer-lock-keys {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

/* ─── Enter building button (shown when building selected) ─── */
#enter-building-btn {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  /* CRITICAL: z-index above ALL overlays including #interior-transition (500) */
  z-index: 9999 !important;
  /* Hidden by default: overridden inline by JS (style.display) */
  display: none;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: rgba(245,158,11,0.15);
  border: 2px solid rgba(245,158,11,0.6);
  border-radius: 14px;
  color: #f59e0b;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  cursor: pointer;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 0 30px rgba(245,158,11,0.35), 0 8px 32px rgba(0,0,0,0.5);
  animation: enterBtnPulse 2s ease-in-out infinite;
  pointer-events: auto;
  opacity: 1;
}

/* JS toggles style.display directly — no class tricks needed */
#enter-building-btn.show {
  display: flex;
}

#enter-building-btn:hover {
  background: rgba(245,158,11,0.28);
  border-color: rgba(245,158,11,0.9);
  box-shadow: 0 0 40px rgba(245,158,11,0.35), 0 8px 32px rgba(0,0,0,0.4);
  transform: translateX(-50%) translateY(-3px);
}

#enter-building-btn:active {
  transform: translateX(-50%) translateY(0);
}

@keyframes enterBtnPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(245,158,11,0.2), 0 8px 32px rgba(0,0,0,0.4); }
  50%       { box-shadow: 0 0 40px rgba(245,158,11,0.4), 0 8px 32px rgba(0,0,0,0.4); }
}

/* ─── Enter Building PANEL button (inside info-panel scroll area) ─── */
.enter-building-panel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 20px;
  background: linear-gradient(135deg, rgba(245,158,11,0.18) 0%, rgba(251,191,36,0.10) 100%);
  border: 2px solid rgba(245,158,11,0.70);
  border-radius: 14px;
  color: #fbbf24;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.8px;
  cursor: pointer;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 0 24px rgba(245,158,11,0.30), 0 4px 16px rgba(0,0,0,0.40);
  animation: enterBtnPulse 2s ease-in-out infinite;
  transition: background 0.2s ease, border-color 0.2s ease,
              box-shadow 0.2s ease, transform 0.15s ease;
  pointer-events: auto;
  position: relative;
  z-index: 200;               /* inside info-panel (z-index 90) — still very visible */
}

.enter-building-panel-btn:hover {
  background: linear-gradient(135deg, rgba(245,158,11,0.32) 0%, rgba(251,191,36,0.22) 100%);
  border-color: rgba(245,158,11,0.95);
  box-shadow: 0 0 38px rgba(245,158,11,0.50), 0 6px 20px rgba(0,0,0,0.40);
  transform: translateY(-2px);
}

.enter-building-panel-btn:active {
  transform: translateY(0);
  box-shadow: 0 0 18px rgba(245,158,11,0.30), 0 4px 12px rgba(0,0,0,0.40);
}

.enter-building-panel-btn svg {
  flex-shrink: 0;
  filter: drop-shadow(0 0 4px rgba(245,158,11,0.60));
}

/* RTL support for Arabic */
[dir="rtl"] .enter-building-panel-btn {
  flex-direction: row-reverse;
}

/* Separator line above the CTA */
#enter-building-cta {
  border-top: 1px solid rgba(245,158,11,0.20);
  padding-top: 16px !important;
  margin-top: 16px !important;
}

/* ─── Mobile virtual joystick ────────────────────────────────── */
#joystick-zone {
  position: fixed;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 210;
  backdrop-filter: blur(4px);
}

#joystick-zone.active { opacity: 1; }

#joystick-nub {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(245,158,11,0.5);
  border: 2px solid var(--amber);
  transition: transform 0.05s ease;
  box-shadow: 0 0 12px rgba(245,158,11,0.3);
}

/* ─── Interior transition overlay ───────────────────────────── */
#interior-transition {
  position: fixed;
  inset: 0;
  z-index: 9000;  /* high but BELOW enter-button (9999) */
  background: #000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

#interior-transition.fade-in  { opacity: 1; pointer-events: all; }
#interior-transition.fade-out { opacity: 0; }

/* ─── Sprint indicator ───────────────────────────────────────── */
.sprint-hint {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-align: center;
  margin-top: 4px;
}

/* ─── Room name side badge ───────────────────────────────────── */
#interior-room-badge {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 201;
  display: flex;
  flex-direction: column;
  gap: 6px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

#interior-room-badge.visible {
  opacity: 1;
}

.room-badge-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(5,10,20,0.85);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--amber);
  border-radius: 0 10px 10px 0;
  backdrop-filter: blur(10px);
}

.room-badge-icon { font-size: 18px; }

.room-badge-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.room-badge-name-en {
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  color: var(--text-primary);
}

.room-badge-name-ar {
  font-family: var(--font-arabic);
  font-size: 11px;
  color: var(--text-secondary);
  direction: rtl;
}

/* ─── Responsive interior ────────────────────────────────────── */
@media (max-width: 600px) {
  .wasd-hints { display: none; }
  #interior-minimap { display: none; }
  #interior-building-name { font-size: 13px; }
  #interior-exit-btn span { display: none; }
}