/* Components: Cards — shared card styles */

/* =========================================
   Base Card
   Canonical glass-card surface used by
   .feature-card, .pricing-card, .stat-card,
   and any future card variants.
   All three page CSS files (main, store,
   dashboard) duplicate these core properties.
   ========================================= */

.card {
  background: var(--bg-glass);
  padding: clamp(var(--space-8), 5vw, var(--space-10));
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur) var(--glass-saturate);
  -webkit-backdrop-filter: var(--glass-blur) var(--glass-saturate);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

/* ── Hover lift ── */
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary-light);
}

/* ── Gradient top-bar (revealed on hover) ── */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-medium) var(--easing);
  z-index: var(--z-above);
}

.card:hover::before {
  transform: scaleX(1);
}

/* ── Inner-highlight inset (subtle top glow) ── */
.card--inset {
  box-shadow: var(--shadow), inset 0 1px 0 var(--bg-glass-strong);
}

.card--inset:hover {
  box-shadow: var(--shadow-elevated), inset 0 1px 0 var(--bg-glass-strong);
}

/* =========================================
   Card Typography
   Shared heading / body-text defaults
   inside any card surface.
   ========================================= */

.card h3 {
  font-size: clamp(1.3rem, 3.5vw, 1.6rem);
  margin-bottom: var(--space-4);
  color: var(--text-color);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card p {
  color: var(--text-light);
  line-height: var(--leading-relaxed);
  font-weight: 400;
}

/* =========================================
   Card Animation
   Staggered fade-in for card grids.
   ========================================= */

.card--animated {
  animation: fadeInUp 0.8s var(--animation-timing);
}

.card--animated:nth-child(1) { animation-delay: 0.1s; }
.card--animated:nth-child(2) { animation-delay: 0.2s; }
.card--animated:nth-child(3) { animation-delay: 0.3s; }
.card--animated:nth-child(4) { animation-delay: 0.4s; }
.card--animated:nth-child(5) { animation-delay: 0.5s; }
.card--animated:nth-child(6) { animation-delay: 0.6s; }

/* =========================================
   Featured / Highlighted Card
   Used by .pricing-card.featured and any
   card that needs a primary-color border
   with a slight scale boost.
   ========================================= */

.card--featured {
  border: 2px solid var(--primary-color);
  transform: scale(1.05);
}

.card--featured:hover {
  transform: scale(1.05) translateY(-4px);
}

/* =========================================
   Card Grid
   Common auto-fit grid for card containers.
   ========================================= */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(var(--space-8), 5vw, var(--space-10));
}

/* =========================================
   Dark Theme Overrides
   Uses the same [data-theme="dark"] selector
   pattern found in main.css & dashboard.css.
   ========================================= */

[data-theme="dark"] .card {
  background: color-mix(in oklch, var(--bg-dark-surface) 60%, transparent);
  border-color: var(--dark-border);
  box-shadow: var(--shadow-md), inset 0 1px 0 color-mix(in oklch, var(--bg-dark-elevated) 30%, transparent);
}

[data-theme="dark"] .card:hover {
  box-shadow: var(--shadow-card-hover), inset 0 1px 0 color-mix(in oklch, var(--bg-dark-elevated) 30%, transparent);
  border-color: var(--primary-border-hover);
}

[data-theme="dark"] .card::after {
  background: linear-gradient(135deg, transparent 0%, color-mix(in oklch, var(--bg-dark-surface) 50%, transparent) 100%);
}

[data-theme="dark"] .card h3 {
  color: var(--text-dark-heading);
}

[data-theme="dark"] .card p {
  color: var(--text-muted);
}

/* Smooth transition for theme toggle */
[data-theme] .card {
  transition: background-color var(--transition-medium) var(--easing),
              color var(--transition-medium) var(--easing),
              border-color var(--transition-medium) var(--easing),
              box-shadow var(--transition-medium) var(--easing);
}

/* =========================================
   Responsive: Touch Devices
   ========================================= */

@media (max-width: 768px) {
  .card {
    padding: var(--space-6) var(--space-5);
  }
}

/* ── Focus-visible for keyboard navigation ── */
.card:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  box-shadow: var(--primary-focus-ring);
}

@media (hover: none) {
  .card:hover {
    transform: none;
  }

  .card:active {
    transform: scale(0.98);
  }
}

@media (max-width: 480px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .card--featured {
    transform: none;
  }

  .card--featured:hover {
    transform: translateY(-4px);
  }
}