/* ============================================================================
   Uganda Museums — Publications Library
   File: wp-content/themes/uganda-museums/assets/css/publications.css
   ----------------------------------------------------------------------------
   Design language: KGM-Inspired Light Editorial — matches Virtual Rooms.
   Benchmarked against: British Museum, Smithsonian, V&A publications pages.

   Features:
   - Left sidebar filter system (sticky on desktop)
   - Grid/List view toggle
   - Search with live filtering
   - Responsive card layout
   - Editorial typography

   Namespace: .pub- (Publications module)
   ============================================================================ */

.pub-page {
  --pub-ink:        #1A1A18;
  --pub-ink-soft:   #4A4945;
  --pub-ink-muted:  #7A7873;
  --pub-rule:       #E2DED5;
  --pub-rule-soft:  #ECE8DF;
  font-family: var(--font-body);
  color: var(--pub-ink);
}


/* ============================================================================
   1. HERO
   ============================================================================ */
.pub-hero {
  position: relative;
  padding: clamp(80px, 11vw, 140px) 6vw clamp(50px, 7vw, 80px);
  background:
    radial-gradient(ellipse at 80% -20%, rgba(160, 82, 45, 0.06), transparent 55%),
    linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-white) 100%);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 60px;
  gap: 40px;
}
.pub-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(26, 26, 24, 0.04) 1px, transparent 0);
  background-size: 18px 18px;
  opacity: 0.5;
  pointer-events: none;
}

.pub-hero__inner {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  width: 100%;
}

.pub-hero .breadcrumb { margin-bottom: 24px; }
.pub-hero .breadcrumb__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--pub-ink-muted);
}
.pub-hero .breadcrumb__item:not(:last-child)::after {
  content: "/";
  margin-left: 8px;
  opacity: 0.5;
}
.pub-hero .breadcrumb__item a {
  color: var(--pub-ink-soft);
  text-decoration: none;
}
.pub-hero .breadcrumb__item a:hover { color: var(--terracotta); }
.pub-hero .breadcrumb__item--active { color: var(--terracotta); }

.pub-hero__eyebrow {
  display: flex;
  align-items: center;
  margin-bottom: 28px;
}
.pub-rule {
  display: inline-block;
  width: 36px;
  height: 1px;
  background: var(--terracotta);
  margin-right: 14px;
}
.pub-eyebrow-text {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pub-ink-soft);
  font-weight: 500;
}

.pub-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--pub-ink);
  margin: 0 0 32px;
  max-width: 16ch;
}
.pub-hero__title em {
  font-style: italic;
  color: var(--terracotta);
  font-weight: 400;
}

.pub-hero__lede {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--pub-ink-soft);
  max-width: 60ch;
  line-height: 1.65;
  margin: 0;
}

.pub-hero__sidebar {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}
.pub-hero__folio {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: 13px;
  color: var(--pub-ink-muted);
  letter-spacing: 0.06em;
}
.pub-hero__vertical {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 10px;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--pub-ink-muted);
}


/* ============================================================================
   2. PUBLICATIONS LIBRARY (sidebar + grid layout)
   ============================================================================ */
.pub-library {
  background: var(--bg-section);
  padding: clamp(60px, 8vw, 100px) 6vw clamp(80px, 10vw, 140px);
}

.pub-library__container {
  max-width: 1480px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}


/* ============================================================================
   3. SIDEBAR (filters + search)
   ============================================================================ */
.pub-sidebar {
  position: sticky;
  top: 100px;
  background: var(--bg-white);
  padding: 32px 28px;
  border: 1px solid var(--pub-rule);
}

/* Search Box */
.pub-search-box {
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--pub-rule-soft);
}
.pub-search-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pub-ink-muted);
  margin-bottom: 12px;
}
.pub-search-input-wrap {
  position: relative;
}
.pub-search-input {
  width: 100%;
  padding: 12px 40px 12px 14px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--pub-ink);
  background: var(--bg-section);
  border: 1px solid transparent;
  border-radius: 0;
  outline: none;
  transition: all 200ms ease;
}
.pub-search-input:focus {
  background: var(--bg-white);
  border-color: var(--terracotta);
}
.pub-search-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--pub-ink-muted);
  pointer-events: none;
}

/* View Toggle */
.pub-view-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--pub-rule-soft);
}
.pub-view-label {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pub-ink-muted);
  margin-right: auto;
}
.pub-view-btn {
  background: transparent;
  border: 1px solid var(--pub-rule);
  padding: 8px;
  cursor: pointer;
  color: var(--pub-ink-soft);
  transition: all 200ms ease;
}
.pub-view-btn:hover {
  border-color: var(--pub-ink);
  color: var(--pub-ink);
}
.pub-view-btn--active {
  background: var(--pub-ink);
  border-color: var(--pub-ink);
  color: #fff;
}

/* Filters */
.pub-filters {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.pub-filter-group {
  border: none;
  padding: 0;
  margin: 0;
}
.pub-filter-group[open] {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--pub-rule-soft);
}
.pub-filter-group:last-child[open] { border-bottom: none; }

.pub-filter-title {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pub-ink);
  margin-bottom: 16px;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pub-filter-title::after {
  content: "+";
  font-size: 18px;
  color: var(--pub-ink-muted);
  transition: transform 200ms ease;
}
.pub-filter-group[open] .pub-filter-title::after {
  content: "−";
}

.pub-filter-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pub-filter-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 14px;
  color: var(--pub-ink-soft);
  transition: color 200ms ease;
}
.pub-filter-checkbox:hover { color: var(--pub-ink); }

.pub-filter-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  border: 1px solid var(--pub-rule);
  border-radius: 0;
  cursor: pointer;
  appearance: none;
  background: var(--bg-white);
  position: relative;
  transition: all 200ms ease;
}
.pub-filter-checkbox input[type="checkbox"]:checked {
  background: var(--terracotta);
  border-color: var(--terracotta);
}
.pub-filter-checkbox input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.pub-filter-label { flex: 1; }
.pub-filter-count {
  font-size: 12px;
  color: var(--pub-ink-muted);
  margin-left: auto;
}

/* Clear Filters */
.pub-clear-filters {
  margin-top: 24px;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--terracotta);
  background: transparent;
  border: 1px solid var(--terracotta);
  cursor: pointer;
  width: 100%;
  transition: all 200ms ease;
}
.pub-clear-filters:hover {
  background: var(--terracotta);
  color: #fff;
}


/* ============================================================================
   4. RESULTS AREA
   ============================================================================ */
.pub-results { width: 100%; }

/* Results Header */
.pub-results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--pub-rule);
  flex-wrap: wrap;
  gap: 16px;
}

.pub-results-count {
  font-size: 14px;
  color: var(--pub-ink-soft);
  margin: 0;
}
.pub-results-count strong {
  font-weight: 600;
  color: var(--pub-ink);
}

.pub-sort {
  display: flex;
  align-items: center;
  gap: 12px;
}
.pub-sort-label {
  font-size: 13px;
  color: var(--pub-ink-muted);
  font-weight: 500;
}
.pub-sort-select {
  padding: 8px 32px 8px 12px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--pub-ink);
  background: var(--bg-white);
  border: 1px solid var(--pub-rule);
  border-radius: 0;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%234A4945' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  transition: border-color 200ms ease;
}
.pub-sort-select:focus {
  outline: none;
  border-color: var(--terracotta);
}


/* ============================================================================
   5. PUBLICATION CARDS (Grid View)
   ============================================================================ */
.pub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 32px 28px;
  transition: opacity 300ms ease;
}
.pub-grid.is-filtering { opacity: 0.5; }

.pub-card {
  background: var(--bg-white);
  border: 1px solid var(--pub-rule);
  display: flex;
  flex-direction: column;
  transition: all 300ms cubic-bezier(.2,.7,.2,1);
}
.pub-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px -8px rgba(26, 26, 24, 0.12);
  border-color: var(--terracotta);
}
.pub-card[data-hidden="true"] { display: none; }

.pub-card__thumb {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--bg-section);
  border-bottom: 1px solid var(--pub-rule);
}
.pub-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 500ms cubic-bezier(.2,.7,.2,1);
}
.pub-card:hover .pub-card__img { transform: scale(1.05); }

.pub-card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--pub-ink-muted);
  opacity: 0.25;
}

.pub-card__body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.pub-card__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}
.pub-card__type {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--terracotta);
  font-weight: 600;
}
.pub-card__year {
  font-size: 12px;
  color: var(--pub-ink-muted);
  font-weight: 500;
}

.pub-card__title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.pub-card__title-link {
  color: var(--pub-ink);
  text-decoration: none;
  transition: color 200ms ease;
}
.pub-card__title-link:hover { color: var(--terracotta); }

.pub-card__author {
  font-size: 14px;
  color: var(--pub-ink-soft);
  margin: 0 0 6px;
}

.pub-card__pages {
  font-size: 13px;
  color: var(--pub-ink-muted);
  margin: 0 0 auto;
  padding-bottom: 20px;
}

.pub-card__actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--pub-rule-soft);
}


/* ============================================================================
   6. LIST VIEW
   ============================================================================ */
.pub-grid--view-list {
  grid-template-columns: 1fr;
  gap: 20px;
}

.pub-grid--view-list .pub-card {
  flex-direction: row;
  align-items: stretch;
}
.pub-grid--view-list .pub-card__thumb {
  aspect-ratio: 1;
  flex-shrink: 0;
  width: 180px;
  border-bottom: none;
  border-right: 1px solid var(--pub-rule);
}
.pub-grid--view-list .pub-card__body {
  padding: 24px 28px;
}
.pub-grid--view-list .pub-card__actions {
  flex-direction: row;
  padding-top: 0;
  border-top: none;
  margin-top: 20px;
}


/* ============================================================================
   7. BUTTONS
   ============================================================================ */
.pub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 0;
  cursor: pointer;
  transition: all 280ms cubic-bezier(.2,.7,.2,1);
  white-space: nowrap;
  text-align: center;
}

.pub-btn--download {
  background: var(--terracotta);
  color: #fff;
  border-color: var(--terracotta);
}
.pub-btn--download:hover {
  background: #8a4525;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -6px rgba(160, 82, 45, 0.4);
}

.pub-btn--ghost {
  background: transparent;
  color: var(--pub-ink);
  border-color: var(--pub-rule);
}
.pub-btn--ghost:hover {
  border-color: var(--pub-ink);
  background: var(--bg-section);
}

.pub-btn--primary {
  background: var(--terracotta);
  color: #fff;
}
.pub-btn--primary:hover {
  background: #8a4525;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px -8px rgba(160, 82, 45, 0.4);
}

.pub-btn--ghost-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}
.pub-btn--ghost-light:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.pub-btn--lg { padding: 18px 32px; font-size: 15px; }

.pub-btn__meta {
  font-size: 11px;
  opacity: 0.75;
  font-weight: 400;
}


/* ============================================================================
   8. PAGINATION
   ============================================================================ */
.pub-pagination {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--pub-rule);
}
.pub-pagination ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 4px;
  justify-content: center;
  flex-wrap: wrap;
}
.pub-pagination a,
.pub-pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 10px 16px;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--pub-ink-soft);
  text-decoration: none;
  border: 1px solid transparent;
  letter-spacing: 0.04em;
  transition: all 200ms ease;
}
.pub-pagination a:hover {
  color: var(--pub-ink);
  background: var(--bg-warm);
}
.pub-pagination .current {
  background: var(--pub-ink);
  color: #fff;
  border-color: var(--pub-ink);
}


/* ============================================================================
   9. EMPTY STATE
   ============================================================================ */
.pub-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 24px;
  color: var(--pub-ink-muted);
}
.pub-empty svg {
  margin-bottom: 24px;
  color: var(--pub-ink-muted);
  opacity: 0.3;
}
.pub-empty h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 500;
  font-style: italic;
  color: var(--pub-ink);
  margin: 0 0 12px;
}
.pub-empty p {
  color: var(--pub-ink-soft);
  font-size: 1rem;
  margin: 0;
}


/* ============================================================================
   10. CTA BAND (dark forest)
   ============================================================================ */
.pub-cta {
  background: var(--bg-footer-main);
  color: #fff;
  padding: clamp(70px, 9vw, 120px) 6vw;
  position: relative;
  overflow: hidden;
}
.pub-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 90% 50%, rgba(160, 82, 45, 0.25), transparent 55%);
  pointer-events: none;
}
.pub-cta__inner {
  position: relative;
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: end;
}

.pub-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #E8C9A8;
  font-weight: 600;
  margin-bottom: 22px;
}

.pub-cta__title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4.4vw, 3.6rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: #fff;
  margin: 0 0 22px;
}

.pub-cta__copy p {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin: 0;
  max-width: 52ch;
}

.pub-cta__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}


/* ============================================================================
   11. RESPONSIVE
   ============================================================================ */
@media (max-width: 1200px) {
  .pub-library__container {
    grid-template-columns: 240px 1fr;
    gap: 40px;
  }
  .pub-sidebar { padding: 24px 20px; }
}

@media (max-width: 1024px) {
  .pub-hero { grid-template-columns: 1fr; }
  .pub-hero__sidebar { display: none; }

  .pub-library__container {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .pub-sidebar {
    position: static;
    padding: 28px 24px;
  }

  .pub-cta__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 720px) {
  .pub-grid { grid-template-columns: 1fr; }
  .pub-grid--view-list .pub-card { flex-direction: column; }
  .pub-grid--view-list .pub-card__thumb {
    aspect-ratio: 3 / 4;
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--pub-rule);
  }
  .pub-grid--view-list .pub-card__actions { flex-direction: column; }

  .pub-results-header { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  .pub-card,
  .pub-card__img,
  .pub-btn {
    transition: none !important;
  }
  .pub-card:hover { transform: none; }
}