:root {
  --primary: #00f2ff;
  --primary-dim: rgba(0, 242, 255, 0.1);
  --secondary: #0066ff;
  --accent: #ff0055;

  --bg-light: #eef2f6;
  --bg-dark: #0a0e17;

  --glass-bg-light: rgba(255, 255, 255, 0.65);
  --glass-border-light: rgba(255, 255, 255, 0.4);
  --glass-shadow-light: 0 8px 32px rgba(31, 38, 135, 0.1);

  --glass-bg-dark: rgba(15, 23, 42, 0.65);
  --glass-border-dark: rgba(255, 255, 255, 0.08);
  --glass-shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.3);

  --text-light: #1e293b;
  --text-muted-light: #64748b;
  --text-dark: #f8fafc;
  --text-muted-dark: #94a3b8;

  --dock-height: 80px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;

  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
}

body {
  background-color: var(--bg-light);
  color: var(--text-light);
  font-family: 'Inter', sans-serif;
  margin: 0;
  overflow: hidden;
  transition: background-color 0.5s ease, color 0.5s ease;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

body.dark-mode {
  background-color: var(--bg-dark);
  color: var(--text-dark);
}

.glass {
  background: var(--glass-bg-light);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border-light);
  box-shadow: var(--glass-shadow-light);
}

body.dark-mode .glass {
  background: var(--glass-bg-dark);
  border-color: var(--glass-border-dark);
  box-shadow: var(--glass-shadow-dark);
}

.hidden {
  display: none !important;
}

.app-container {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.canvas-area {
  position: absolute;
  inset: 0;
  z-index: 0;
}

model-viewer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  --poster-color: transparent;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease;
}

model-viewer.active {
  display: block;
  opacity: 1;
  z-index: 1;
}

.loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(10, 14, 23, 0.8);
  backdrop-filter: blur(8px);
  color: var(--text-dark);
  font-weight: 600;
  z-index: 10;
  transition: opacity 0.3s ease;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(0, 242, 255, 0.3);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

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

.Hotspot {
  background: var(--glass-bg-light);
  border-radius: 50%;
  border: 2px solid var(--primary);
  width: 20px;
  height: 20px;
  cursor: pointer;
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
  box-shadow: 0 0 0 0 rgba(0, 242, 255, 0.7);
  animation: pulse 2s infinite;
  padding: 6px;
}

body.dark-mode .Hotspot {
  background: var(--glass-bg-dark);
}

.Hotspot:hover {
  transform: scale(1.3);
  background: var(--primary);
}

.HotspotAnnotation {
  background: var(--glass-bg-light);
  color: var(--text-light);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  position: absolute;
  transform: translate(-50%, -40px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  border: 1px solid var(--glass-border-light);
  backdrop-filter: blur(8px);
  white-space: nowrap;
}

body.dark-mode .HotspotAnnotation {
  background: var(--glass-bg-dark);
  color: var(--text-dark);
  border-color: var(--glass-border-dark);
}

.Hotspot:hover .HotspotAnnotation {
  opacity: 1;
  transform: translate(-50%, -50px);
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 242, 255, 0.7);
  }

  70% {
    box-shadow: 0 0 0 10px rgba(0, 242, 255, 0);
  }

  100% {
    box-shadow: 0 0 0 0 rgba(0, 242, 255, 0);
  }
}

.dock-container {
  position: absolute;
  bottom: max(24px, env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-lg);
  transition: transform 0.3s ease;
}

.dock-item {
  min-width: 64px;
  min-height: 64px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s var(--ease-spring);
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.1);
}

body.dark-mode .dock-item {
  background: rgba(255, 255, 255, 0.05);
}

.dock-item:hover {
  transform: translateY(-8px) scale(1.1);
  background: rgba(255, 255, 255, 0.2);
}

body.dark-mode .dock-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.dock-item.active {
  background: var(--primary-dim);
  border: 2px solid var(--primary);
  box-shadow: 0 0 20px rgba(0, 242, 255, 0.4), 0 4px 12px rgba(0, 0, 0, 0.2);
  transform: translateY(-4px);
}

.dock-item.active .dock-icon {
  transform: scale(1.2);
  filter: drop-shadow(0 0 8px var(--primary));
}

.dock-item.active .dock-label {
  opacity: 1;
  color: var(--primary);
  font-weight: 700;
}

.dock-icon {
  font-size: 24px;
  margin-bottom: 4px;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.dock-label {
  font-size: 10px;
  font-weight: 600;
  opacity: 0.7;
  transition: opacity 0.3s ease, color 0.3s ease;
}

.controls-container {
  position: absolute;
  top: max(24px, env(safe-area-inset-top));
  right: max(24px, env(safe-area-inset-right));
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 100;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 8px;
  border-radius: var(--radius-md);
}

.control-btn {
  min-width: 48px;
  min-height: 48px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.5);
  position: relative;
  font-size: 20px;
}

body.dark-mode .control-btn {
  color: var(--text-dark);
  background: rgba(255, 255, 255, 0.1);
}

.control-btn:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: scale(1.05);
}

body.dark-mode .control-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.control-btn.active,
.control-btn:active {
  background: var(--primary-dim);
  border: 2px solid var(--primary);
  color: var(--primary);
  box-shadow: 0 0 16px rgba(0, 242, 255, 0.3), 0 2px 8px rgba(0, 0, 0, 0.15);
  transform: scale(0.95);
}

body.dark-mode .control-btn.active,
body.dark-mode .control-btn:active {
  color: var(--primary);
}

.control-btn::after {
  content: attr(title);
  position: absolute;
  right: 120%;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  backdrop-filter: blur(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  visibility: hidden;
}

body.dark-mode .control-btn::after {
  background: rgba(255, 255, 255, 0.9);
  color: #000;
}

.control-btn:hover::after {
  opacity: 1;
  visibility: visible;
}

.info-card {
  position: absolute;
  top: max(24px, env(safe-area-inset-top));
  left: max(24px, env(safe-area-inset-left));
  width: 320px;
  max-height: calc(100vh - 48px);
  border-radius: var(--radius-lg);
  padding: 24px;
  z-index: 90;
  transform: translateX(-120%);
  transition: transform 0.4s var(--ease-spring);
  overflow-y: auto;
  scrollbar-width: none;
}

.info-card::-webkit-scrollbar {
  display: none;
}

.info-card.visible {
  transform: translateX(0);
}

.info-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--glass-border-light);
}

body.dark-mode .info-header {
  border-color: var(--glass-border-dark);
}

.info-icon-large {
  font-size: 32px;
  background: var(--primary-dim);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--primary);
}

.info-title h2 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.info-title span {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted-light);
}

body.dark-mode .info-title span {
  color: var(--text-muted-dark);
}

.info-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-desc {
  line-height: 1.6;
  font-size: 14px;
  color: var(--text-muted-light);
}

body.dark-mode .info-desc {
  color: var(--text-muted-dark);
}

.stat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.3);
  transition: transform 0.2s ease;
}

body.dark-mode .stat-item {
  background: rgba(0, 0, 0, 0.2);
}

.stat-item:hover {
  transform: translateX(4px);
  background: var(--primary-dim);
}

.stat-icon {
  font-size: 20px;
}

.stat-content h4 {
  margin: 0;
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted-light);
}

body.dark-mode .stat-content h4 {
  color: var(--text-muted-dark);
}

.stat-content p {
  margin: 2px 0 0 0;
  font-size: 13px;
  font-weight: 600;
}

.intro-screen {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #1a2332 0%, #0a0e17 100%);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.intro-content {
  text-align: center;
  max-width: 600px;
  padding: 40px;
}

.intro-title {
  font-size: 48px;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  letter-spacing: -1px;
}

.intro-btn {
  margin-top: 32px;
  padding: 16px 48px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
  border: none;
  border-radius: 30px;
  cursor: pointer;
  box-shadow: 0 0 20px rgba(0, 242, 255, 0.4);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
  min-height: 48px;
}

.intro-btn:hover,
.intro-btn:active {
  transform: scale(1.05);
  box-shadow: 0 0 40px rgba(0, 242, 255, 0.6);
}

@media (max-width: 768px) {
  .info-card {
    top: auto;
    bottom: calc(100px + env(safe-area-inset-bottom));
    left: 12px;
    right: 12px;
    width: auto;
    max-height: 35vh;
    padding: 16px;
    transform: translateY(120%);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
  }

  .info-card.visible {
    transform: translateY(0);
  }

  .dock-container {
    width: calc(100% - 24px);
    max-width: 100%;
    justify-content: center;
    padding: 8px;
    gap: 8px;
    bottom: max(16px, env(safe-area-inset-bottom));
  }

  .dock-item {
    min-width: 68px;
    min-height: 68px;
    flex: 0 0 auto;
  }

  .dock-icon {
    font-size: 26px;
    margin-bottom: 2px;
  }

  .dock-label {
    font-size: 10px;
  }

  .controls-container {
    top: max(12px, env(safe-area-inset-top));
    right: max(12px, env(safe-area-inset-right));
    gap: 6px;
  }

  .control-group {
    gap: 6px;
    padding: 4px;
  }

  .control-btn {
    min-width: 44px;
    min-height: 44px;
    font-size: 18px;
  }

  .control-btn::after {
    display: none;
  }

  .Hotspot {
    width: 22px;
    height: 22px;
    padding: 6px;
  }

  .info-header {
    gap: 12px;
    margin-bottom: 12px;
    padding-bottom: 12px;
  }

  .info-icon-large {
    width: 44px;
    height: 44px;
    font-size: 24px;
  }

  .info-title h2 {
    font-size: 16px;
  }

  .info-title span {
    font-size: 10px;
  }

  .info-desc {
    font-size: 13px;
    line-height: 1.5;
  }

  .stat-item {
    padding: 8px;
    gap: 8px;
  }

  .stat-icon {
    font-size: 18px;
  }

  .stat-content h4 {
    font-size: 10px;
  }

  .stat-content p {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .intro-title {
    font-size: 32px;
  }

  .intro-content {
    padding: 20px 16px;
  }

  .intro-btn {
    padding: 12px 28px;
    font-size: 15px;
  }

  .info-card {
    bottom: calc(90px + env(safe-area-inset-bottom));
    left: 8px;
    right: 8px;
    padding: 14px;
    max-height: 30vh;
  }

  .info-header {
    gap: 10px;
    margin-bottom: 10px;
    padding-bottom: 10px;
  }

  .info-icon-large {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }

  .info-title h2 {
    font-size: 15px;
  }

  .info-title span {
    font-size: 9px;
  }

  .info-desc {
    font-size: 12px;
  }

  .stat-item {
    padding: 6px 8px;
    gap: 6px;
  }

  .stat-icon {
    font-size: 16px;
  }

  .stat-content h4 {
    font-size: 9px;
  }

  .stat-content p {
    font-size: 11px;
  }

  .dock-container {
    width: calc(100% - 16px);
    padding: 8px;
    gap: 6px;
    bottom: max(16px, env(safe-area-inset-bottom));
  }

  .dock-item {
    min-width: 64px;
    min-height: 64px;
  }

  .dock-icon {
    font-size: 24px;
    margin-bottom: 2px;
  }

  .dock-label {
    font-size: 9px;
  }

  .controls-container {
    gap: 5px;
    top: max(10px, env(safe-area-inset-top));
    right: max(10px, env(safe-area-inset-right));
  }

  .control-group {
    gap: 5px;
    padding: 3px;
  }

  .control-btn {
    min-width: 40px;
    min-height: 40px;
    font-size: 16px;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  .info-card {
    max-height: 60vh;
    padding: 12px;
  }

  .dock-container {
    bottom: max(12px, env(safe-area-inset-bottom));
    padding: 6px;
  }

  .dock-item {
    min-width: 56px;
    min-height: 56px;
  }

  .dock-icon {
    font-size: 22px;
    margin-bottom: 1px;
  }

  .dock-label {
    font-size: 8px;
  }

  .controls-container {
    top: max(8px, env(safe-area-inset-top));
    gap: 4px;
  }

  .control-group {
    gap: 4px;
  }

  .control-btn {
    min-width: 38px;
    min-height: 38px;
    font-size: 15px;
  }

  .info-header {
    gap: 8px;
    margin-bottom: 8px;
    padding-bottom: 8px;
  }

  .info-icon-large {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .info-title h2 {
    font-size: 14px;
  }

  .info-desc {
    font-size: 11px;
  }

  .stat-item {
    padding: 5px 6px;
  }
}