/* ==========================================================================
   Card Component System
   Uses existing CSS custom properties from skins/default.css:
   --primary, --border-radius, --border-radius2x, --light, --dark, --default
   ========================================================================== */

/* ---------- Card Tokens ---------- */
:root {
  --card-bg: #fff;
  --card-radius: var(--border-radius2x, 8px);
  --card-radius-lg: 16px;
  --card-padding: 24px;
  --card-padding-sm: 16px;
  --card-gap: 24px;
  --card-border: 1px solid rgba(0, 0, 0, 0.06);
  --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  --card-shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --card-shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.1);
  --card-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Base Card ----------
   Usage: <div class="ep-card">...</div>
   ========================================================================== */
.ep-card {
  position: relative;
  background: var(--card-bg);
  border: var(--card-border);
  border-radius: var(--card-radius);
  overflow: hidden;
  transition: transform var(--card-transition),
              box-shadow var(--card-transition);
}

.ep-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
}

/* Card Inner Regions */
.ep-card__media {
  position: relative;
  overflow: hidden;
  line-height: 0;
}

.ep-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--card-transition);
}

.ep-card:hover .ep-card__media img {
  transform: scale(1.03);
}

.ep-card__body {
  padding: var(--card-padding);
}

.ep-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0 0 8px;
  line-height: 1.4;
}

.ep-card__text {
  font-size: 0.875rem;
  color: var(--default, #777);
  margin: 0;
  line-height: 1.6;
}

.ep-card__footer {
  padding: var(--card-padding-sm) var(--card-padding);
  border-top: var(--card-border);
}

/* ---------- Variant: Elevated ----------
   Stronger resting shadow, no border. For key CTAs / pricing.
   Usage: <div class="ep-card ep-card--elevated">...</div>
   ========================================================================== */
.ep-card--elevated {
  border: none;
  box-shadow: var(--card-shadow-elevated);
}

.ep-card--elevated:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

/* ---------- Variant: Feature ----------
   Icon + heading + description. Centered layout.
   Usage:
   <div class="ep-card ep-card--feature">
     <div class="ep-card__body">
       <div class="ep-card__icon">...</div>
       <h3 class="ep-card__title">...</h3>
       <p class="ep-card__text">...</p>
     </div>
   </div>
   ========================================================================== */
.ep-card--feature {
  text-align: center;
  border-radius: var(--card-radius-lg);
  height: 100%;
}

.ep-card--feature .ep-card__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px var(--card-padding);
  height: 100%;
}

.ep-card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ep-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.ep-card--feature .ep-card__title {
  font-size: 1rem;
  margin-bottom: 8px;
}

.ep-card--feature .ep-card__text {
  font-size: 0.8125rem;
}

/* ---------- Variant: Testimonial ----------
   Quote + author layout with accent bar.
   Usage:
   <div class="ep-card ep-card--testimonial">
     <div class="ep-card__body">
       <blockquote class="ep-card__quote">...</blockquote>
       <div class="ep-card__author">
         <img class="ep-card__avatar" src="..." alt="...">
         <div>
           <p class="ep-card__author-name">...</p>
           <p class="ep-card__author-role">...</p>
         </div>
       </div>
     </div>
   </div>
   ========================================================================== */
.ep-card--testimonial {
  border-left: 4px solid var(--primary, #2665C4);
  border-radius: 0 var(--card-radius) var(--card-radius) 0;
}

.ep-card--testimonial:hover {
  transform: translateY(-3px);
}

.ep-card__quote {
  font-size: 0.9375rem;
  font-style: italic;
  color: #333;
  line-height: 1.7;
  margin: 0 0 20px;
  padding: 0;
  border: none;
  position: relative;
}

.ep-card__quote::before {
  content: "\201C";
  font-size: 2.5rem;
  color: var(--primary, #2665C4);
  font-family: Georgia, serif;
  line-height: 1;
  position: absolute;
  top: -8px;
  left: -4px;
  opacity: 0.3;
}

.ep-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ep-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.ep-card__author-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: #1a1a2e;
  margin: 0;
}

.ep-card__author-role {
  font-size: 0.75rem;
  color: var(--default, #777);
  margin: 0;
}

/* ---------- Card Grid ----------
   Responsive grid container for cards.
   Usage: <div class="ep-card-grid">...cards...</div>
   ========================================================================== */
.ep-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--card-gap);
}

/* ---------- Responsive ---------- */
@media (max-width: 991px) {
  .ep-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575px) {
  :root {
    --card-padding: 16px;
    --card-gap: 16px;
  }

  .ep-card-grid {
    grid-template-columns: 1fr;
  }

  .ep-card--feature .ep-card__body {
    padding: 24px 16px;
  }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .ep-card,
  .ep-card__media img {
    transition: none;
  }

  .ep-card:hover {
    transform: none;
  }

  .ep-card:hover .ep-card__media img {
    transform: none;
  }
}