/*
 * Card Components
 *
 * Unified card system for consistent content containers across the application.
 * Works with hub theming system and provides variants for different use cases.
 */

/* ========================================================================
   BASE CARD
   ======================================================================== */
.card {
  background: var(--color-bg-white);
  border-radius: var(--radius-xl);
  padding: var(--card-padding);
  box-shadow: var(--shadow-md);
  border: var(--card-border-width) solid var(--color-border);
  transition: var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
}

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

/* Compact Card - Less padding */
.card--compact {
  padding: var(--card-padding-sm);
}

/* Spacious Card - More padding */
.card--spacious {
  padding: var(--card-padding-lg);
}

/* Flat Card - No shadow */
.card--flat {
  box-shadow: none;
}

/* Bordered Card - Emphasis on border */
.card--bordered {
  border-width: 2px;
  box-shadow: none;
}

/* Elevated Card - Stronger shadow */
.card--elevated {
  box-shadow: var(--shadow-lg);
}

/* Interactive Card - Hover effects */
.card--interactive {
  cursor: pointer;
  transition: all 0.3s ease;
}

.card--interactive:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

/* ========================================================================
   HUB CARDS
   ======================================================================== */

/* Hub Card - Standard hub content card */
.hub-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--card-padding);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

/* Hub Card Compact */
.hub-card--compact {
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

/* Legacy Hub Classes (CV & LinkedIn) */
.cv-hub-card {
  @extend .hub-card;
}

.cv-hub-card-compact {
  @extend .hub-card;
  @extend .hub-card--compact;
}

.linkedin-hub-card {
  @extend .hub-card;
}

.linkedin-hub-card-compact {
  @extend .hub-card;
  @extend .hub-card--compact;
}

/* ========================================================================
   PROFILE CARDS
   ======================================================================== */

/* Profile Summary Card */
.card--profile {
  background: linear-gradient(135deg, var(--color-bg-white) 0%, var(--color-bg-light) 100%);
  border: none;
  box-shadow: var(--shadow-lg);
}

/* Profile Stats Card */
.card--stats {
  text-align: center;
  padding: var(--spacing-5);
}

.card--stats .stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  display: block;
  margin-bottom: var(--spacing-1);
}

.card--stats .stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: block;
}

/* ========================================================================
   METRIC/ADMIN CARDS
   ======================================================================== */

/* Admin Metric Card */
.card--metric {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-5);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  transition: var(--transition-base);
}

.card--metric:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card--metric .metric-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-3);
}

.card--metric .metric-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-medium);
}

.card--metric .metric-value {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  line-height: 1;
}

.card--metric .metric-trend {
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-2);
}

.metric-trend--up {
  color: var(--color-success);
}

.metric-trend--down {
  color: var(--color-danger);
}

.metric-trend--neutral {
  color: var(--color-text-muted);
}

/* ========================================================================
   THEMED CARDS
   ======================================================================== */

/* LinkedIn Themed Card */
.card--linkedin {
  border-left: 4px solid var(--color-linkedin-primary);
}

.card--linkedin .card-header {
  color: var(--color-linkedin-primary);
}

/* CV Themed Card */
.card--cv {
  border-left: 4px solid var(--color-cv-primary);
}

.card--cv .card-header {
  color: var(--color-cv-primary);
}

/* Success Card */
.card--success {
  border-left: 4px solid var(--color-success);
  background: linear-gradient(135deg, white 0%, #f0fdf4 100%);
}

/* Warning Card */
.card--warning {
  border-left: 4px solid var(--color-warning);
  background: linear-gradient(135deg, white 0%, #fffbeb 100%);
}

/* Danger Card */
.card--danger {
  border-left: 4px solid var(--color-danger);
  background: linear-gradient(135deg, white 0%, #fef2f2 100%);
}

/* Info Card */
.card--info {
  border-left: 4px solid var(--color-info);
  background: linear-gradient(135deg, white 0%, #f0f9ff 100%);
}

/* ========================================================================
   CARD SECTIONS
   ======================================================================== */

.card-header {
  margin-bottom: var(--spacing-4);
  padding-bottom: var(--spacing-3);
  border-bottom: 1px solid var(--color-border-light);
}

.card-header h2,
.card-header h3 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.card-header h2 {
  font-size: var(--font-size-xl);
}

.card-header h3 {
  font-size: var(--font-size-lg);
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-3);
  border-top: 1px solid var(--color-border-light);
}

/* ========================================================================
   CARD LISTS
   ======================================================================== */

.card-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-4);
}

/* ========================================================================
   SPECIAL CARDS
   ======================================================================== */

/* Empty State Card */
.card--empty-state {
  text-align: center;
  padding: var(--spacing-8);
  color: var(--color-text-muted);
}

.card--empty-state i {
  font-size: 3rem;
  margin-bottom: var(--spacing-3);
  opacity: 0.3;
}

.card--empty-state h3 {
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

/* Loading Card */
.card--loading {
  position: relative;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card--loading::after {
  content: "";
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-radius: 50%;
  border-top-color: var(--color-primary);
  animation: card-spin 0.6s linear infinite;
}

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

/* Premium Gated Card */
.card--premium-gate {
  position: relative;
  overflow: hidden;
}

.card--premium-gate::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(124, 58, 237, 0.1));
  pointer-events: none;
}

.card--premium-gate .premium-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 10;
}

/* ========================================================================
   RESPONSIVE
   ======================================================================== */
@media (max-width: 768px) {
  .card {
    padding: var(--card-padding-sm);
    border-radius: var(--radius-lg);
  }

  .hub-card {
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
  }

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

  .card--metric .metric-value {
    font-size: var(--font-size-2xl);
  }
}

@media (max-width: 480px) {
  .card {
    padding: var(--spacing-4);
  }

  .hub-card {
    padding: var(--spacing-4);
  }
}