/* ==========================================================================
   GENZ UNIVERSITY — 360° VIRTUAL CAMPUS TOUR STYLESHEET
   Glassmorphism UI, Responsive Controls, 3D Hotspots & Minimap
   ========================================================================== */

:root {
  --primary: #0f172a;
  --accent: #e0533c;
  --accent-glow: rgba(224, 83, 60, 0.4);
  --glass-bg: rgba(15, 23, 42, 0.75);
  --glass-border: rgba(255, 255, 255, 0.15);
  --glass-blur: blur(16px);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --nav-size: 46px;
  --radius: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body, html {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: #000;
  color: var(--text-main);
  user-select: none;
}

#panorama-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
}

#panorama-container canvas {
  width: 100% !important;
  height: 100% !important;
  image-rendering: auto;
  image-rendering: -webkit-optimize-contrast;
  display: block;
}

/* ==========================================================================
   TOP HEADER HUD
   ========================================================================== */
.top-hud {
  position: absolute;
  top: 16px;
  left: 20px;
  right: 20px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  pointer-events: none;
}

.brand-badge {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: 8px 18px;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.brand-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #e0533c, #f97316);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.5px;
}

.brand-info h1 {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #fff;
  line-height: 1.2;
}

.brand-info p {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.scene-info-card {
  pointer-events: auto;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: 8px 20px;
  border-radius: var(--radius);
  text-align: right;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.scene-counter {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.scene-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
}

.scene-subtitle {
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   RESUME TOUR BANNER (Suspended on manual exploration)
   ========================================================================== */
.resume-banner {
  position: absolute;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  background: rgba(224, 83, 60, 0.9);
  backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 8px 20px;
  border-radius: 30px;
  box-shadow: 0 8px 24px rgba(224, 83, 60, 0.4);
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.resume-banner.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.resume-banner:hover {
  transform: translateX(-50%) scale(1.04);
  background: #e0533c;
}

.resume-banner span {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   BOTTOM CONTROLLER & TIMELINE DOCK
   ========================================================================== */
.bottom-dock {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 90%;
  max-width: 680px;
  pointer-events: none;
}

.timeline-bar-container {
  pointer-events: auto;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.timeline-progress {
  width: 5%;
  height: 100%;
  background: linear-gradient(90deg, #e0533c, #fb923c);
  border-radius: 10px;
  transition: width 0.1s linear;
}

.controls-dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: 40px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.ctrl-btn {
  width: var(--nav-size);
  height: var(--nav-size);
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
  color: var(--accent);
}

.ctrl-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0 15px var(--accent-glow);
}

.ctrl-btn.play-btn {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, #e0533c, #ea580c);
  box-shadow: 0 4px 15px rgba(224, 83, 60, 0.4);
}

.ctrl-btn.play-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(224, 83, 60, 0.6);
}

.dock-separator {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.15);
  margin: 0 4px;
}

/* ==========================================================================
   FLOATING ZOOM & VIEW CONTROLS (RIGHT DOCK)
   ========================================================================== */
.floating-zoom-dock {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: 8px;
  border-radius: 30px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  pointer-events: auto;
}

.zoom-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  outline: none;
}

.zoom-btn:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: scale(1.08);
  color: var(--accent);
}

.zoom-btn:active {
  transform: scale(0.95);
  background: var(--accent);
  color: #fff;
}

/* ==========================================================================
   3D GROUND PERSPECTIVE HOTSPOTS
   ========================================================================== */
.hotspot-custom {
  position: relative;
  width: 44px;
  height: 44px;
  cursor: pointer;
  transform: translate(-50%, -50%);
}

.hotspot-oval {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 36px;
  height: 36px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(224, 83, 60, 0.9) 0%, rgba(224, 83, 60, 0.3) 70%, transparent 100%);
  border: 2px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 16px var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hotspot-arrow {
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-bottom: 10px solid #fff;
  animation: bounce 1.4s infinite ease-in-out;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.hotspot-pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 44px;
  height: 44px;
  transform: translate(-50%, -50%);
  border: 2px solid rgba(224, 83, 60, 0.8);
  border-radius: 50%;
  animation: pulse-ring 1.8s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}

@keyframes pulse-ring {
  0% { transform: translate(-50%, -50%) scale(0.5); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(1.6); opacity: 0; }
}

.hotspot-label {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: var(--transition);
  color: #fff;
}

.hotspot-custom:hover .hotspot-label {
  opacity: 1;
  transform: translateX(-50%) translateY(-12px);
}

/* ==========================================================================
   LOCATIONS DRAWER
   ========================================================================== */
.drawer-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 20;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.drawer-overlay.open {
  opacity: 1;
  visibility: visible;
}

.locations-drawer {
  position: absolute;
  top: 0;
  right: -420px;
  width: 400px;
  height: 100%;
  background: #0f172a;
  border-left: 1px solid var(--glass-border);
  z-index: 25;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: -10px 0 40px rgba(0, 0, 0, 0.7);
}

.drawer-overlay.open .locations-drawer {
  transform: translateX(-420px);
}

.drawer-header {
  padding: 24px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.drawer-header h2 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.drawer-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
}

.drawer-close:hover {
  color: #fff;
}

.drawer-filter-pills {
  padding: 12px 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.filter-pill {
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  font-size: 11px;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.filter-pill.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.drawer-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scene-card {
  display: flex;
  gap: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 8px;
  cursor: pointer;
  transition: var(--transition);
}

.scene-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--accent);
  transform: translateX(-4px);
}

.scene-card.active {
  background: rgba(224, 83, 60, 0.15);
  border-color: var(--accent);
}

.scene-card-thumb {
  width: 90px;
  height: 60px;
  border-radius: 8px;
  object-fit: cover;
}

.scene-card-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.scene-card-num {
  font-size: 10px;
  font-weight: 700;
  color: var(--accent);
}

.scene-card-title {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}

.scene-card-category {
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   CAMPUS MINIMAP MODAL
   ========================================================================== */
.minimap-modal {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 90%;
  max-width: 600px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 24px;
  z-index: 30;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.minimap-modal.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
}

.minimap-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.minimap-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.map-svg-container {
  width: 100%;
  height: 380px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  position: relative;
  overflow: hidden;
}

/* ==========================================================================
   INTRO & ENDING FULLSCREEN OVERLAYS
   ========================================================================== */
.overlay-screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, rgba(15, 23, 42, 0.85) 0%, rgba(3, 7, 18, 0.98) 100%);
  backdrop-filter: blur(12px);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px;
  transition: opacity 0.5s ease;
}

.overlay-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.overlay-badge {
  background: rgba(224, 83, 60, 0.2);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.overlay-title {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -0.5px;
  color: #fff;
  margin-bottom: 12px;
  line-height: 1.1;
}

.overlay-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.5;
  margin-bottom: 36px;
}

.cta-btn-primary {
  padding: 14px 36px;
  background: linear-gradient(135deg, #e0533c, #ea580c);
  border: none;
  border-radius: 30px;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(224, 83, 60, 0.5);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.cta-btn-primary:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 12px 35px rgba(224, 83, 60, 0.7);
}

.btn-secondary-row {
  display: flex;
  gap: 16px;
  margin-top: 16px;
}

.cta-btn-secondary {
  padding: 12px 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.cta-btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
}

/* ==========================================================================
   LOADING SPINNER
   ========================================================================== */
.scene-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.scene-loader.active {
  opacity: 1;
}

.spinner-ring {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.scene-loader p {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   MOBILE OPTIMIZATIONS
   ========================================================================== */
@media (max-width: 768px) {
  .top-hud {
    top: 12px;
    left: 12px;
    right: 12px;
  }
  .brand-info p {
    display: none;
  }
  .scene-subtitle {
    display: none;
  }
  .locations-drawer {
    width: 100%;
    right: -100%;
  }
  .drawer-overlay.open .locations-drawer {
    transform: translateX(-100%);
  }
  .overlay-title {
    font-size: 30px;
  }
  .overlay-subtitle {
    font-size: 15px;
  }
  .bottom-dock {
    width: 95%;
    bottom: 16px;
  }
  .floating-zoom-dock {
    right: 10px;
    gap: 6px;
    padding: 6px;
  }
  .zoom-btn {
    width: 34px;
    height: 34px;
  }
}