/*
 * Card Component
 *
 * A reusable card component with header, body, and footer sections.
 * Used for issue cards, user cards, and content grouping throughout the application.
 *
 * Usage:
 *   <%= render 'shared/card', header: 'Title' do %>
 *     Card content here
 *   <% end %>
 *
 * With all sections:
 *   <%= render 'shared/card', header: 'Title', footer: footer_content do %>
 *     Card content here
 *   <% end %>
 */

/* ============================================
 * BASE CARD STYLES
 * ============================================ */

.card {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ============================================
 * CARD HEADER
 * ============================================ */

.card-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.card-header-content {
  flex: 1;
  min-width: 0;
}

.card-title {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: var(--leading-tight);
}

.card-subtitle {
  margin: var(--space-1) 0 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

.card-header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* ============================================
 * CARD BODY
 * ============================================ */

.card-body {
  padding: var(--space-4);
  flex: 1;
}

.card-body:empty {
  display: none;
}

/* Empty state styling */
.card-body-empty {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  font-style: italic;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-2);
}

/* ============================================
 * CARD FOOTER
 * ============================================ */

.card-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border-primary);
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.card-footer-start {
  flex: 1;
  min-width: 0;
}

.card-footer-end {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Footer with only buttons (right-aligned) */
.card-footer--actions {
  justify-content: flex-end;
}

/* Footer with link */
.card-footer-link {
  font-size: var(--text-sm);
  color: var(--color-text-link);
  text-decoration: none;
  transition: color 0.15s ease;
}

.card-footer-link:hover {
  color: var(--color-text-link-hover);
  text-decoration: underline;
}

/* ============================================
 * CARD VARIANTS
 * ============================================ */

/* Elevated card with shadow */
.card--elevated {
  box-shadow: var(--shadow-md);
  border-color: transparent;
}

/* Interactive card (clickable) */
.card--interactive {
  cursor: pointer;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.card--interactive:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-secondary);
}

.card--interactive:active {
  transform: translateY(1px);
}

/* Compact card with smaller padding */
.card--compact .card-header {
  padding: var(--space-3);
}

.card--compact .card-body {
  padding: var(--space-3);
}

.card--compact .card-footer {
  padding: var(--space-3);
}

/* Full-height card (fills container) */
.card--full-height {
  height: 100%;
}

/* Card without header border */
.card--seamless .card-header {
  border-bottom: none;
  padding-bottom: var(--space-2);
}

.card--seamless .card-body {
  padding-top: 0;
}

/* ============================================
 * CARD STATUS VARIANTS
 * ============================================ */

.card--success {
  border-left: 4px solid var(--color-success-500);
}

.card--warning {
  border-left: 4px solid var(--color-warning-500);
}

.card--error {
  border-left: 4px solid var(--color-error-500);
}

.card--info {
  border-left: 4px solid var(--color-primary-500);
}

/* ============================================
 * CARD WITH ICON IN HEADER
 * ============================================ */

.card-header-icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
}

.card-header-icon svg {
  width: 20px;
  height: 20px;
}

.card-header-icon--primary {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.card-header-icon--success {
  background: var(--color-success-50);
  color: var(--color-success-600);
}

.card-header-icon--warning {
  background: var(--color-warning-50);
  color: var(--color-warning-600);
}

.card-header-icon--error {
  background: var(--color-error-50);
  color: var(--color-error-600);
}

/* ============================================
 * CARD DIVIDER
 * ============================================ */

.card-divider {
  height: 1px;
  background: var(--color-border-primary);
  margin: 0;
  border: none;
}

/* ============================================
 * CARD LIST (for cards containing lists)
 * ============================================ */

.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.card-list-item {
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-primary);
}

.card-list-item:first-child {
  padding-top: 0;
}

.card-list-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

/* ============================================
 * RESPONSIVE ADJUSTMENTS
 * ============================================ */

@media (width <= 640px) {
  .card-header {
    padding: var(--space-3);
    flex-direction: column;
    align-items: flex-start;
  }

  .card-header-actions {
    width: 100%;
    justify-content: flex-end;
    margin-top: var(--space-2);
  }

  .card-body {
    padding: var(--space-3);
  }

  .card-footer {
    padding: var(--space-3);
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .card-footer-end {
    justify-content: flex-end;
  }
}