/*
 * learning-center.css
 * Styles for the WordPress Learning Center page template.
 *
 * Depends on CSS custom properties defined in :root {} in style.css / base.css.
 * Animation classes (.animate-on-scroll, .visible) managed by animations.js.
 * Filter classes (.filtering-out, .filtering-in, .hidden) managed by learning-center.js.
 */

/* ============================================================
   1. PAGE HEADER — Now uses global .page-hero from pages.css
   No learning-center-specific header overrides needed.
   ============================================================ */

/* ============================================================
   2. SECTION OVERVIEW BANDS
   ============================================================ */

.lc-sections {
  padding: var(--space-xl, 4rem) 0 var(--space-lg, 2.5rem);
  background: var(--color-cream-dark, #f0ebe0);
}

.lc-section-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.lc-section-card {
  position: relative;
  border-radius: var(--radius-lg, 1rem);
  padding: 0;
  overflow: hidden;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  box-shadow: 0 4px 20px rgba(0,0,0,.12);
  transition: box-shadow .3s, transform .3s;
}

.lc-section-card:hover {
  box-shadow: 0 8px 36px rgba(0,0,0,.2);
  transform: translateY(-4px);
}

.lc-section-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.25) 0%,
    rgba(255, 255, 255, 0.55) 40%,
    rgba(255, 255, 255, 0.9) 75%,
    rgba(255, 255, 255, 0.97) 100%
  );
  border-radius: inherit;
  transition: background .3s;
}

.lc-section-card:hover .lc-section-card__overlay {
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.3) 0%,
    rgba(255, 255, 255, 0.6) 40%,
    rgba(255, 255, 255, 0.92) 75%,
    rgba(255, 255, 255, 0.98) 100%
  );
}

.lc-section-card__content {
  position: relative;
  z-index: 1;
  padding: 1.75rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: .5rem;
  flex: 1;
}

.lc-section-card__inner {
  background: rgba(255, 255, 255, 0.5);
  border: none;
  border-radius: var(--radius-lg, 1rem);
  padding: 1rem 1.25rem;
  min-height: 9rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.lc-section-title {
  font-family: var(--font-display, 'Cormorant Garamond', serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-text, #1a1a1a);
  margin: 0;
  letter-spacing: .01em;
}

.lc-section-desc {
  font-size: .8125rem;
  color: var(--color-text, #1a1a1a);
  line-height: 1.55;
  margin: 0;
}

.lc-section-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: .5rem;
}

.lc-section-count {
  font-size: .75rem;
  color: var(--color-text, #1a1a1a);
  margin: 0;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.lc-section-count strong {
  font-weight: 700;
  color: var(--color-text, #1a1a1a);
}

.lc-section-btn {
  padding: .4rem 1rem;
  background: var(--color-sage, #6b8c6b);
  color: #fff;
  border: 1px solid var(--color-sage, #6b8c6b);
  border-radius: var(--radius-pill, 99px);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background .2s, border-color .2s, transform .15s;
}

.lc-section-btn:hover {
  background: var(--color-sage-dark, #4e6b4e);
  border-color: var(--color-sage-dark, #4e6b4e);
  transform: translateX(2px);
}

/* responsive */
@media (max-width: 900px) {
  .lc-section-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 540px) {
  .lc-section-grid { grid-template-columns: 1fr; }
  .lc-section-card { min-height: 220px; }
}

/* ============================================================
   3. FILTER BAR
   ============================================================ */

.lc-filters {
  position: relative;
  z-index: 500;
  background: transparent;
  border-bottom: none;
  padding: var(--space-md) var(--space-md);
}

.filter-controls {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.filter-description {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
}

.filter-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  width: 100%;
}

/* --- Select wrapper --- */

.filter-select-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.filter-select {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-sage-light);
  border-radius: var(--radius-pill);
  padding: 0.5rem 2.5rem 0.5rem 1.125rem;
  min-width: 200px;
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  outline: none;
}

.filter-select:hover {
  border-color: var(--color-sage);
}

.filter-select:focus {
  border-color: var(--color-sage);
  box-shadow: 0 0 0 3px rgba(139, 168, 136, 0.18);
}

.filter-select-arrow {
  position: absolute;
  right: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  transition: transform var(--transition-base);
}

.filter-select-wrapper:focus-within .filter-select-arrow {
  transform: translateY(-50%) rotate(180deg);
}

/* --- Search wrapper --- */

.lc-search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--color-white);
  border: 1.5px solid var(--color-sage-light);
  border-radius: var(--radius-pill);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  overflow: hidden;
}

.lc-search-wrapper:focus-within {
  border-color: var(--color-sage);
  box-shadow: 0 0 0 3px rgba(139, 168, 136, 0.18);
}

.lc-search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
  display: flex;
  align-items: center;
}

.lc-search-input {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background: transparent;
  border: none;
  outline: none;
  padding: 0.5rem 2.5rem 0.5rem 2.625rem;
  min-width: 220px;
  border-radius: var(--radius-pill);
  width: 100%;
}

.lc-search-input::placeholder {
  color: var(--color-text-muted);
}

.lc-search-clear {
  position: absolute;
  right: 0.625rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 0.25rem;
  cursor: pointer;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  border-radius: 50%;
  transition: color var(--transition-base), background-color var(--transition-base);
  line-height: 1;
}

.lc-search-clear:hover {
  color: var(--color-sage-dark);
  background-color: var(--color-cream-dark);
}

/* JS sets [hidden] when input is empty */
.lc-search-clear[hidden] {
  display: none;
}

/* ============================================================
   3. STATUS ROW — tightened spacing
   ============================================================ */

.lc-grid-section.section--large {
  padding-top: var(--space-sm, 1rem);
}

.lc-status {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.lc-showing {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-sm) 0;
}

/* ============================================================
   4. ARTICLES GRID
   ============================================================ */

.lc-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md) var(--space-xl);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

/* ============================================================
   5. ARTICLE CARD
   ============================================================ */

/* --- Keyframes --- */

@keyframes filterIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* --- Base card (now an <a> tag — entire card is clickable) --- */

.article-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: 0 2px 12px var(--color-shadow);
  border: 1px solid var(--color-border);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition:
    transform var(--transition-medium),
    box-shadow var(--transition-medium),
    border-color var(--transition-base),
    opacity var(--transition-base);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(44, 44, 44, 0.16);
  border-color: var(--color-sage-light);
}

/* --- Hidden state (JS-managed) --- */

.article-card.hidden {
  display: none;
}

/* --- Filter transition states --- */

.article-card.filtering-out {
  opacity: 0;
  transform: translateY(20px) scale(0.95);
  pointer-events: none;
}

.article-card.filtering-in {
  animation: filterIn 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
  animation-delay: calc(var(--filter-index, 0) * 0.03s);
}

/* --- Scroll animation integration --- */

.article-card.animate-on-scroll {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow var(--transition-base);
}

.article-card.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Thumbnail --- */

.article-card__thumb-wrap {
  display: block;
  overflow: hidden;
  border-radius: var(--radius-card) var(--radius-card) 0 0;
  aspect-ratio: 3 / 2;
  position: relative;
  flex-shrink: 0;
  background-color: var(--color-cream-dark);
}

.article-card__thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.article-card:hover .article-card__thumb {
  transform: scale(1.04);
}

/* --- Type badge (absolute, top-right of thumbnail) --- */

.article-card__type-badge {
  position: absolute;
  top: 0.625rem;
  right: 0.625rem;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  line-height: 1.4;
  white-space: nowrap;
  pointer-events: none;
}

.article-card__type-badge--article {
  background-color: var(--color-sage-light);
  color: var(--color-sage-dark);
}

.article-card__type-badge--video {
  background-color: #FDECD8;
  color: #B05C0E;
}

.article-card__type-badge--pdf {
  background-color: #DCE8F7;
  color: #2D5F96;
}

.article-card__type-badge--link {
  background-color: #EDE8F7;
  color: #5B3FA6;
}

/* --- Card body --- */

.article-card__body {
  flex: 1;
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

/* --- Categories row --- */

.article-card__categories {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.article-card__category {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-white, #fff);
  background-color: var(--color-sage);
  border-radius: var(--radius-pill);
  padding: 0.2rem var(--space-xs);
  line-height: 1.5;
  white-space: nowrap;
}

/* --- Title --- */

.article-card__title {
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
  color: var(--color-text);
  transition: color var(--transition-base);
}

.article-card:hover .article-card__title {
  color: var(--color-sage-dark);
}

/* --- Excerpt --- */

.article-card__excerpt {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  margin: 0;
  flex-grow: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* --- Card footer --- */

.article-card__footer {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.375rem;
  padding: var(--space-sm) var(--space-md);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
  flex-wrap: wrap;
}

.article-card__date,
.article-card__read-time {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.article-card__sep {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1;
  user-select: none;
}

.article-card__arrow {
  display: inline-flex;
  align-items: center;
  margin-left: auto;
  color: var(--color-sage);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.article-card:hover .article-card__arrow {
  opacity: 1;
  transform: translateX(0);
}

/* ============================================================
   6. LOAD MORE BUTTON
   ============================================================ */

.load-more-wrapper,
.load-more-container {
  display: flex;
  justify-content: center;
  margin-top: var(--space-xl);
  padding-bottom: var(--space-lg);
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-sage-dark);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-sage);
  border-radius: var(--radius-pill);
  padding: 0.625rem 1.75rem;
  cursor: pointer;
  text-decoration: none;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  outline: none;
}

.load-more-btn:hover,
.load-more-btn:focus-visible {
  background-color: var(--color-sage);
  color: var(--color-white);
  border-color: var(--color-sage);
  box-shadow: 0 4px 16px rgba(92, 122, 89, 0.22);
  transform: translateY(-1px);
}

.load-more-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.load-more-btn__chevron {
  display: inline-flex;
  align-items: center;
  transition: transform var(--transition-base);
}

.load-more-btn:hover .load-more-btn__chevron,
.load-more-btn:focus-visible .load-more-btn__chevron {
  transform: translateY(3px);
}

.load-more-btn[hidden] {
  display: none;
}

/* ============================================================
   7. NO RESULTS STATE
   ============================================================ */

.lc-no-results {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-xl) var(--space-md);
  gap: var(--space-md);
}

.lc-no-results.visible {
  display: flex;
}

.lc-no-results__icon {
  color: var(--color-sage-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lc-no-results__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.lc-no-results__message {
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  max-width: 420px;
  line-height: 1.65;
  margin: 0;
}

.lc-reset-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-sage-dark);
  background-color: transparent;
  border: 1.5px solid var(--color-sage);
  border-radius: var(--radius-pill);
  padding: 0.5625rem 1.5rem;
  cursor: pointer;
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
  outline: none;
  text-decoration: none;
}

.lc-reset-btn:hover,
.lc-reset-btn:focus-visible {
  background-color: var(--color-sage);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(92, 122, 89, 0.2);
  transform: translateY(-1px);
}

.lc-reset-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

/* ============================================================
   8. RESPONSIVE BREAKPOINTS
   ============================================================ */

/* --- Medium: 2-column grid, stacked filters --- */
@media (max-width: 1024px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-row {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-sm);
  }

  .filter-select-wrapper,
  .lc-search-wrapper {
    width: 100%;
  }

  .filter-select {
    width: 100%;
    min-width: 0;
  }

  .lc-search-input {
    width: 100%;
    min-width: 0;
  }
}

/* --- Small: 1-column grid, full-width search --- */
@media (max-width: 640px) {
  .page-header--learning-center {
    padding: var(--space-lg) var(--space-sm);
  }

  .articles-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .lc-filters {
    padding: var(--space-sm);
  }

  .lc-search-input {
    min-width: 0;
    width: 100%;
  }

  .lc-main {
    padding: var(--space-md) var(--space-sm) var(--space-lg);
  }

  .article-card__body {
    padding: var(--space-sm);
  }
}

/* ============================================================
   CUSTOM SELECT DROPDOWN  (matches .header__dropdown style)
   ============================================================ */

.filter-btn {
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  background-color: var(--color-white);
  border: 1.5px solid var(--color-sage-light);
  border-radius: var(--radius-pill);
  padding: 0.5rem 1rem 0.5rem 1.125rem;
  min-width: 200px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  white-space: nowrap;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
  outline: none;
  line-height: 1.4;
}

.filter-btn:hover { border-color: var(--color-sage); }

.filter-btn:focus {
  border-color: var(--color-sage);
  box-shadow: 0 0 0 3px rgba(139, 168, 136, 0.18);
}

/* Arrow inside button is a flex child, not absolutely positioned */
.filter-btn .filter-select-arrow {
  position: static;
  transform: none;
  pointer-events: none;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.filter-select-wrapper.open .filter-btn .filter-select-arrow {
  transform: rotate(180deg);
}

/* Dropdown list — styled to match .header__dropdown with scroll support */
.filter-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: #fff;
  border-radius: 12px;
  padding: 0.5rem 0;
  min-width: 100%;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity var(--transition-fast),
    transform var(--transition-fast),
    visibility var(--transition-fast);
  z-index: 200;
}

/* Scrollbar styling */
.filter-dropdown::-webkit-scrollbar {
  width: 6px;
}
.filter-dropdown::-webkit-scrollbar-track {
  background: transparent;
}
.filter-dropdown::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 3px;
}
.filter-dropdown::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

.filter-select-wrapper.open .filter-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.filter-dropdown__item {
  padding: 0.5rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  cursor: pointer;
  position: relative;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast);
  white-space: nowrap;
}

/* Underline on hover — matches header nav link style */
.filter-dropdown__item::after {
  content: '';
  position: absolute;
  bottom: 0.25rem;
  left: 1.25rem;
  right: 1.25rem;
  height: 1px;
  background: var(--color-sage);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-fast);
}

.filter-dropdown__item:hover::after {
  transform: scaleX(1);
}

.filter-dropdown__item:hover {
  color: var(--color-sage);
  background-color: var(--color-cream);
}

.filter-dropdown__item.selected {
  color: var(--color-sage);
  font-weight: 500;
}

.filter-dropdown__item.selected::after {
  transform: scaleX(1);
  background: var(--color-sage-light);
}

/* ============================================================
   FOLIAGE Z-INDEX OVERRIDES
   Allow foliage to show alongside Learning Center content,
   including content revealed by Load More.
   ============================================================ */

/* Let foliage layer show through by keeping main at z-index auto */
.siahus-learning-center .site-main {
  z-index: auto;
}

.siahus-learning-center .site-main > * {
  position: relative;
  z-index: auto;
}

/* Page hero + grid area: no stacking context, foliage shows through */
.siahus-learning-center .page-hero,
.siahus-learning-center .lc-sections,
.siahus-learning-center .lc-grid-section {
  position: relative;
  z-index: auto;
}

/* Cards and interactive elements above foliage */
.siahus-learning-center .article-card {
  position: relative;
  z-index: 101;
}

.siahus-learning-center .load-more-container {
  position: relative;
  z-index: 101;
}

.siahus-learning-center .lc-no-results {
  position: relative;
  z-index: 101;
}

.siahus-learning-center .lc-section-card {
  position: relative;
  z-index: 101;
}