/* Reset and variables */
:host, :root {
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, monospace;
  
  --color-bg: #070814;
  --color-panel: rgba(10, 12, 28, 0.75);
  --color-panel-border: rgba(255, 255, 255, 0.08);
  --color-panel-glow: rgba(0, 242, 254, 0.12);
  
  --color-accent: #00f2fe;
  --color-accent-hover: #4facfe;
  --color-accent-glow: rgba(0, 242, 254, 0.4);
  
  --color-gold: #ffd700;
  
  --color-text-primary: #f8fafc;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
  width: 100%;
  height: 100vh;
  height: 100dvh;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: var(--color-bg);
  font-family: var(--font-body);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#viewport-container {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

#canvas-container {
  width: 100%;
  height: 100%;
}

/* Glassmorphic Sidebar Container */
.sidebar-container {
  position: absolute;
  top: 20px;
  left: 20px;
  width: 320px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  z-index: 10;
  
  background: var(--color-panel);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.4), 
              0 0 60px var(--color-panel-glow);
  
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: var(--transition-smooth);
}

.sidebar-container.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-340px);
}

.sidebar-container::-webkit-scrollbar {
  width: 4px;
}
.sidebar-container::-webkit-scrollbar-track {
  background: transparent;
}
.sidebar-container::-webkit-scrollbar-thumb {
  background: var(--color-panel-border);
  border-radius: var(--radius-sm);
}

/* Header */
.brand-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-header img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.title-gradient {
  font-family: var(--font-title);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 40%, #00f2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  font-size: 0.68rem;
  color: var(--color-text-secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}

.divider {
  border: 0;
  height: 1px;
  background: var(--color-panel-border);
}

/* PDP Price Card */
.price-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.product-name {
  font-family: var(--font-title);
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
}

.product-rating {
  font-size: 0.75rem;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  gap: 6px;
}

.product-price {
  font-family: var(--font-title);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-top: 4px;
}

/* Sections */
.section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.select-dropdown {
  width: 100%;
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.select-dropdown:focus {
  border-color: var(--color-accent);
}

/* Color & Gemstone Preset Grid */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.preset-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  text-align: left;
}

.preset-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.15);
}

.preset-card.active {
  border-color: var(--color-accent);
  background: rgba(0, 242, 254, 0.08);
  color: var(--color-text-primary);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.color-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
}

.preset-name {
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Carat & Size Buttons */
.size-grid {
  display: flex;
  gap: 6px;
}

.size-btn {
  flex: 1;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-panel-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  padding: 6px 0;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: var(--transition-smooth);
}

.size-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.size-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #070814;
  font-weight: 700;
  box-shadow: 0 0 12px var(--color-accent-glow);
}

/* Primary E-Commerce Add to Cart Button */
.cart-btn {
  width: 100%;
  padding: 12px;
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  border: none;
  border-radius: var(--radius-md);
  color: #070814;
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-smooth);
  box-shadow: 0 8px 24px rgba(0, 242, 254, 0.3);
}

.cart-btn:hover {
  background: linear-gradient(135deg, #4facfe, #00c6ff);
  transform: translateY(-1px);
  box-shadow: 0 12px 32px rgba(0, 242, 254, 0.45);
}

/* Floating Capsule Toolbar styling */
.toolbar-container {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-panel);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--color-panel-border);
  border-radius: 40px;
  padding: 6px 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 
              0 0 40px var(--color-panel-glow);
  transition: var(--transition-smooth);
}

.toolbar-btn {
  flex-shrink: 0;
  background: transparent;
  border: none;
  padding: 0;
  color: var(--color-text-secondary);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition-smooth);
}

.toolbar-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-text-primary);
  transform: translateY(-2px);
}

.toolbar-btn.active {
  background: var(--color-accent);
  color: #070814;
  box-shadow: 0 0 15px var(--color-accent-glow);
}

/* Toast Notification */
.toast-notification {
  position: fixed;
  top: 24px;
  right: 24px;
  background: rgba(10, 12, 28, 0.9);
  backdrop-filter: blur(20px);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 12px 20px;
  color: #ffffff;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 12px 32px rgba(0, 242, 254, 0.3);
  transform: translateY(-100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-notification.show {
  transform: translateY(0);
  opacity: 1;
}

/* Loading Overlay */
#loading-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-bg);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
}

.spinner-circle {
  width: 44px;
  height: 44px;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.9s cubic-bezier(0.6, 0.2, 0.4, 0.8) infinite;
  margin-bottom: 16px;
}

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

.loading-text {
  font-family: var(--font-title);
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}