/**
 * Glassmorphism Design System
 * Frosted glass aesthetic with translucent layers and blur effects.
 *
 * Principles:
 * - Frosted glass cards with backdrop-filter blur
 * - Translucent surfaces with subtle borders
 * - Layered depth through transparency
 * - Cool-toned palette (blue-violet gradient backgrounds)
 * - Accessible sans-serif typography
 * - Subtle light refraction borders
 */

:root {
  /* ==================== GLASS COLOR PALETTE ==================== */
  --glass-bg-start: #0f0c29;
  --glass-bg-mid: #302b63;
  --glass-bg-end: #24243e;

  --glass-surface: rgba(255, 255, 255, 0.08);
  --glass-surface-hover: rgba(255, 255, 255, 0.12);
  --glass-surface-strong: rgba(255, 255, 255, 0.15);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-border-strong: rgba(255, 255, 255, 0.3);

  --glass-text: #f0f0f5;
  --glass-text-secondary: rgba(240, 240, 245, 0.7);
  --glass-text-muted: rgba(240, 240, 245, 0.45);
  --glass-accent: #7c83ff;
  --glass-accent-glow: rgba(124, 131, 255, 0.3);

  /* ==================== GLASS BLUR VALUES ==================== */
  --glass-blur-sm: 8px;
  --glass-blur: 16px;
  --glass-blur-lg: 24px;

  /* ==================== TYPOGRAPHY ==================== */
  --glass-font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* ==================== SPACING ==================== */
  --glass-sp-1: 0.25rem;
  --glass-sp-2: 0.5rem;
  --glass-sp-3: 0.75rem;
  --glass-sp-4: 1rem;
  --glass-sp-6: 1.5rem;
  --glass-sp-8: 2rem;

  /* ==================== RADIUS ==================== */
  --glass-radius: 12px;
  --glass-radius-lg: 16px;
  --glass-radius-xl: 20px;
  --glass-radius-full: 999px;

  /* ==================== TRANSITIONS ==================== */
  --glass-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== BODY BACKGROUND ==================== */
[data-design-system="glassmorphism"] {
  background: linear-gradient(135deg, var(--glass-bg-start), var(--glass-bg-mid), var(--glass-bg-end));
  background-attachment: fixed;
  color: var(--glass-text);
  font-family: var(--glass-font);

  /* Override semantic color vars for page-level elements */
  --color-text: var(--glass-text);
  --color-text-secondary: var(--glass-text-secondary);
  --color-background: transparent;
  --color-surface: var(--glass-surface);
  --color-border: var(--glass-border);
  --color-primary: var(--glass-accent);
  --color-accent: var(--glass-accent);
}

/* ==================== GALLERY GRID ==================== */
[data-design-system="glassmorphism"] .gallery-grid {
  gap: var(--glass-sp-6);
}

[data-design-system="glassmorphism"] .gallery-item {
  background: var(--glass-surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-lg);
  overflow: hidden;
  transition: var(--glass-transition);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

[data-design-system="glassmorphism"] .gallery-item:hover {
  background: var(--glass-surface-hover);
  border-color: var(--glass-border-strong);
  transform: translateY(-4px);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.3),
    0 0 0 1px var(--glass-border-strong),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

[data-design-system="glassmorphism"] .gallery-figure {
  margin: 0;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--glass-radius) var(--glass-radius) 0 0;
}

[data-design-system="glassmorphism"] .gallery-image {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  opacity: 0.92;
}

[data-design-system="glassmorphism"] .gallery-item:hover .gallery-image {
  transform: scale(1.04);
  opacity: 1;
}

[data-design-system="glassmorphism"] .gallery-title {
  padding: var(--glass-sp-4) var(--glass-sp-4) var(--glass-sp-2);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--glass-text);
  line-height: 1.4;
  letter-spacing: -0.01em;
}

[data-design-system="glassmorphism"] .gallery-caption {
  padding: 0 var(--glass-sp-4) var(--glass-sp-3);
  font-size: 0.8125rem;
  color: var(--glass-text-secondary);
  line-height: 1.6;
}

[data-design-system="glassmorphism"] .gallery-info {
  padding: 0 var(--glass-sp-4) var(--glass-sp-4);
  font-size: 0.75rem;
  color: var(--glass-text-muted);
  margin-top: auto;
}

/* ==================== CHIPS ==================== */
[data-design-system="glassmorphism"] .chip {
  background: var(--glass-surface);
  backdrop-filter: blur(var(--glass-blur-sm));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm));
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-full);
  color: var(--glass-text);
  font-size: 0.75rem;
  font-weight: 500;
  transition: var(--glass-transition);
}

[data-design-system="glassmorphism"] .chip:hover {
  background: var(--glass-surface-strong);
  border-color: var(--glass-accent);
  box-shadow: 0 0 12px var(--glass-accent-glow);
}

[data-design-system="glassmorphism"] .chip-close {
  opacity: 0.6;
}

[data-design-system="glassmorphism"] .chip:hover .chip-close {
  opacity: 1;
}

/* ==================== FILTER MENUS ==================== */
[data-design-system="glassmorphism"] .filter-menu {
  background: rgba(30, 30, 60, 0.85);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

[data-design-system="glassmorphism"] .filter-action-btn {
  background: var(--glass-surface);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--glass-text);
  font-size: 0.75rem;
  font-weight: 600;
}

[data-design-system="glassmorphism"] .filter-action-btn:hover {
  background: var(--glass-surface-strong);
}

[data-design-system="glassmorphism"] .filter-option {
  color: var(--glass-text-secondary);
  border-radius: 6px;
  padding: 0.375rem 0.5rem;
}

[data-design-system="glassmorphism"] .filter-option:hover {
  background: var(--glass-surface);
}

/* ==================== NO RESULTS ==================== */
[data-design-system="glassmorphism"] .no-results {
  background: var(--glass-surface);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--glass-radius-xl);
  color: var(--glass-text-secondary);
}

/* ==================== LOADING ==================== */
[data-design-system="glassmorphism"] .loading-overlay {
  background: rgba(15, 12, 41, 0.9);
  backdrop-filter: blur(var(--glass-blur-lg));
  -webkit-backdrop-filter: blur(var(--glass-blur-lg));
}

[data-design-system="glassmorphism"] .loading-spinner {
  border-color: var(--glass-border);
  border-top-color: var(--glass-accent);
}

/* ==================== REDUCED MOTION ==================== */
@media (prefers-reduced-motion: reduce) {
  [data-design-system="glassmorphism"] .gallery-item,
  [data-design-system="glassmorphism"] .gallery-image,
  [data-design-system="glassmorphism"] .chip {
    transition: none;
  }

  [data-design-system="glassmorphism"] .gallery-item:hover {
    transform: none;
  }
}

/* ==================== FORCED COLORS ==================== */
@media (forced-colors: active) {
  [data-design-system="glassmorphism"] .gallery-item {
    border: 2px solid CanvasText;
    backdrop-filter: none;
    background: Canvas;
  }

  [data-design-system="glassmorphism"] .chip {
    border: 1px solid CanvasText;
    backdrop-filter: none;
  }
}