/**
 * Courses Section Styles
 * Landing page course discovery widget and cards
 */

/* ============================================
   Section Layout
   ============================================ */

.courses-section {
  padding: var(--space-16) 0;
  background: var(--color-surface-container-low);
}

.courses-section h2 {
  font-family: var(--font-family-display);
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-on-surface);
  text-align: center;
  margin-bottom: var(--space-8);
}

/* ============================================
   Postal Code Search
   ============================================ */

.postal-search {
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  max-width: 500px;
  margin: 0 auto var(--space-6);
}

.postal-search input {
  flex: 1;
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-base);
  border: 2px solid var(--color-outline-variant);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  color: var(--color-on-surface);
  transition: var(--transition-fast);
}

.postal-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--focus-ring);
}

.postal-search input::placeholder {
  color: var(--color-on-surface-variant);
}

.postal-search button {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-on-primary);
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: var(--transition-fast);
}

.postal-search button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--color-shadow-md);
}

.postal-search button:active {
  transform: translateY(0);
}

/* ============================================
   Hint Text
   ============================================ */

.courses-hint {
  text-align: center;
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.courses-hint a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
}

.courses-hint a:hover {
  text-decoration: underline;
}

/* ============================================
   Courses Grid
   ============================================ */

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

@media (max-width: 640px) {
  .courses-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ============================================
   Course Card
   ============================================ */

.course-card {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 2px 8px var(--color-shadow);
  transition: var(--transition-normal);
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--color-shadow-md);
}

.course-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

/* Course Image */
.course-image {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--color-surface-container);
  overflow: hidden;
}

.course-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.course-card:hover .course-image img {
  transform: scale(1.05);
}

.course-image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--gradient-primary-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Distance Badge */
.course-distance {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-on-surface);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

/* Status Badges */
.course-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
}

.badge-started {
  color: var(--color-on-surface-variant);
  background: rgba(255, 255, 255, 0.95);
}

.badge-full {
  color: var(--color-on-error);
  background: var(--color-error);
}

.badge-limited {
  color: #7c2d12;
  background: #fed7aa;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* Course Content */
.course-content {
  padding: var(--space-4);
}

/* Organization Info */
.course-org {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.org-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  object-fit: cover;
  flex-shrink: 0;
}

.org-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: var(--color-on-primary);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.org-name {
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

.org-rating {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  color: var(--color-on-surface-variant);
  flex-shrink: 0;
}

.rating-star {
  color: #f59e0b;
}

.rating-value {
  font-weight: var(--font-weight-semibold);
}

.rating-count {
  opacity: 0.7;
}

/* Course Title */
.course-title {
  font-family: var(--font-family-body);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-on-surface);
  line-height: var(--line-height-tight);
  margin: 0 0 var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Sports Tags */
.course-sports {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.sport-tag {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  background: var(--color-primary-container);
  border-radius: var(--radius-full);
}

/* Course Details */
.course-details {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-on-surface-variant);
}

.course-date {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.course-price {
  font-weight: var(--font-weight-semibold);
  color: var(--color-on-surface);
}

.course-spots {
  color: var(--color-success);
  font-weight: var(--font-weight-medium);
}

/* Location */
.course-location {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: var(--font-size-xs);
  color: var(--color-on-surface-variant);
}

.location-icon {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  opacity: 0.7;
}

.location-icon svg {
  width: 14px;
  height: 14px;
}

.location-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================
   CTA Section
   ============================================ */

.courses-cta {
  text-align: center;
}

.courses-cta .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  border-radius: var(--radius-xl);
  transition: var(--transition-fast);
}

.courses-cta .btn-secondary {
  color: var(--color-primary);
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
}

.courses-cta .btn-secondary:hover {
  background: var(--color-primary-container);
}

/* ============================================
   Loading State
   ============================================ */

.courses-loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-on-surface-variant);
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-outline-variant);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: var(--space-4);
}

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

/* ============================================
   Empty State
   ============================================ */

.courses-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-on-surface-variant);
}

.courses-empty p:first-child {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

/* ============================================
   Error State
   ============================================ */

.courses-error {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--space-16) var(--space-4);
  color: var(--color-error);
}

.courses-error button {
  margin-top: var(--space-4);
}

/* ============================================
   Toast Notification
   ============================================ */

.courses-toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: var(--space-4) var(--space-6);
  background: var(--color-on-surface);
  color: var(--color-surface);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  box-shadow: 0 4px 16px var(--color-shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: var(--z-tooltip);
}

.courses-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Responsive Adjustments
   ============================================ */

@media (max-width: 768px) {
  .courses-section {
    padding: var(--space-12) 0;
  }

  .courses-section h2 {
    font-size: var(--font-size-2xl);
    padding: 0 var(--space-4);
  }

  .postal-search {
    flex-direction: column;
    padding: 0 var(--space-4);
  }

  .postal-search button {
    width: 100%;
  }

  .courses-hint {
    padding: 0 var(--space-4);
  }

  .courses-grid {
    padding: 0 var(--space-4);
  }
}

/* ============================================
   Discovery Page Specific
   ============================================ */

.courses-page .courses-section {
  padding-top: var(--space-8);
  background: var(--color-surface);
}

.courses-search-container {
  max-width: 700px;
  margin: 0 auto var(--space-6);
}

/* ============================================
   M3 Filter Chips
   ============================================ */

.courses-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.filter-chip-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.filter-separator {
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  padding: 0 var(--space-1);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  color: var(--color-on-surface);
  transition: var(--transition-fast);
  cursor: pointer;
}

.filter-chip:hover {
  background: var(--color-surface-container);
  border-color: var(--color-outline);
}

.filter-chip:focus-within {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-container);
}

.filter-chip label {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-on-surface-variant);
  cursor: pointer;
  white-space: nowrap;
}

.filter-chip input[type="date"] {
  border: none;
  background: transparent;
  color: var(--color-on-surface);
  font-size: var(--font-size-sm);
  padding: 0;
  cursor: pointer;
  width: 110px;
}

.filter-chip input[type="date"]:focus {
  outline: none;
}

/* Reset button as filter chip */
.filter-chip-reset {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  border: 1px solid transparent;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--color-on-surface-variant);
  transition: var(--transition-fast);
  cursor: pointer;
}

.filter-chip-reset:hover {
  background: var(--color-surface-container);
  color: var(--color-on-surface);
}

.filter-chip-reset svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .courses-filters {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-2);
  }

  .filter-chip-group {
    width: 100%;
  }

  .filter-chip {
    flex: 1;
    justify-content: center;
  }

  .filter-chip-reset {
    justify-content: center;
  }
}

/* Load More */
.courses-load-more {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.courses-load-more .btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  background: transparent;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
}

.courses-load-more .btn-outline:hover:not(:disabled) {
  background: var(--color-primary-container);
}

.courses-load-more .btn-outline:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.courses-load-info {
  font-size: var(--font-size-xs);
  color: var(--color-on-surface-variant);
  margin: 0;
}

/* Results Count */
.courses-results-count {
  text-align: center;
  color: var(--color-on-surface-variant);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.courses-results-count strong {
  color: var(--color-on-surface);
  font-weight: var(--font-weight-semibold);
}

/* ============================================
   Load More Button
   ============================================ */

.load-more-container {
  display: flex;
  justify-content: center;
  margin-top: var(--space-8);
  margin-bottom: var(--space-8);
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-on-primary);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.load-more-btn:hover:not(:disabled) {
  background: var(--color-primary-hover, #7c3aed);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.load-more-btn:active:not(:disabled) {
  transform: translateY(0);
}

.load-more-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.load-more-count {
  font-weight: var(--font-weight-normal);
  opacity: 0.9;
}