:root {
  --bg-color: #0f172a;
  --surface-color: #1e293b;
  --surface-glass: rgba(30, 41, 59, 0.9);
  --accent-color: #38bdf8;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --radius-lg: 16px;
  --radius-md: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.showroom {
  width: 100%;
  max-width: 1200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

/* Stage */
.preview-container {
  position: relative;
  width: 100%;
  height: 55vh;
  min-height: 320px;
  max-height: 600px;
  background: radial-gradient(circle at center, #334155 0%, #1e293b 70%);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.image-wrapper {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

#carPreview {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  transition: transform 0.2s ease-out, filter 0.2s ease-out;
  user-select: none;
}

/* Overlays - Desktop Hover / Mobile Always Accessible */
.controls-overlay {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  max-width: 700px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  z-index: 10;
  transition: opacity 0.25s ease;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--surface-glass);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
}

.control-group button {
  background: #334155;
  color: var(--text-primary);
  border: none;
  font-size: 16px;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.control-group button:hover {
  background: var(--accent-color);
  color: #0f172a;
}

.control-group .btn-reset {
  width: auto;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 500;
  height: 32px;
}

.label {
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Color Palette */
.color-btn {
  width: 22px !important;
  height: 22px !important;
  border-radius: 50% !important;
  border: 2px solid transparent !important;
}

.color-btn.active {
  border-color: var(--accent-color) !important;
  transform: scale(1.15);
}

.color-btn[data-color="black"] { background-color: #111; }
.color-btn[data-color="gray"]  { background-color: #71717a; }
.color-btn[data-color="white"] { background-color: #f4f4f5; }
.color-btn[data-color="blue"]  { background-color: #2563eb; }

/* Car Name */
.name-overlay {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90%;
  display: flex;
  justify-content: center;
  z-index: 10;
  transition: opacity 0.25s ease;
}

.name-overlay h2 {
  font-size: 14px;
  font-weight: 600;
  padding: 8px 14px;
  background: var(--surface-glass);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  letter-spacing: 0.5px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* Thumbnails Carousel */
.car-selector-wrapper {
  width: 100%;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.car-selector-wrapper::-webkit-scrollbar {
    background-color: var(--surface-color);
    border-radius: 10px;
    height: 5px;
}

.car-selector-wrapper::-webkit-scrollbar-thumb {
    background-color: var(--accent-color);
    border-radius: 10px;
}

.car-selector {
  display: flex;
  gap: 12px;
}

.car-card {
  flex: 0 0 140px;
  background: var(--surface-color);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 8px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}

.car-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.25);
}

.car-card.active {
  border-color: var(--accent-color);
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.25);
}

.car-card img {
  width: 100%;
  height: 75px;
  object-fit: contain;
  pointer-events: none;
}

.car-card span {
  display: block;
  font-size: 11px;
  text-align: center;
  margin-top: 4px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Desktop Hover Effects (Fade controls out slightly until hover on larger screens) */
@media (min-width: 768px) {
  .controls-overlay,
  .name-overlay {
    opacity: 0.85;
  }
  
  .preview-container:hover .controls-overlay,
  .preview-container:hover .name-overlay {
    opacity: 1;
  }

  .car-card {
    flex: 0 0 170px;
  }
  
  .car-card img {
    height: 85px;
  }

  .name-overlay h2 {
    font-size: 15px;
  }
}