/* =========================================================================
   AUK Publications — archive grid + single viewer styles
   Namespaced under .auk-pubs / .auk-pub-card / .auk-pub-single
   ========================================================================= */

.auk-pubs,
.auk-pub-single {
  --auk-pub-bg: #f7f9fc;
  --auk-pub-accent: #2d4d89;
  --auk-pub-accent-2: #f7a600;
  --auk-pub-text: #1e2a44;
  --auk-pub-muted: #64748b;
  --auk-pub-radius: 12px;
  --auk-pub-ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  background: var(--auk-pub-bg);
  color: var(--auk-pub-text);
  min-height: 50vh;
}

/* ========== Archive ================================================== */
.auk-pubs { padding: 40px 16px 64px; }
.auk-pubs__wrap {
  width: 100%;
  max-width: 1240px;
  margin-inline: auto;
}

.auk-pubs__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 36px;
}
.auk-pubs__title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--auk-pub-text);
  padding-bottom: 14px;
  position: relative;
}
.auk-pubs__title::after {
  content: "";
  position: absolute;
  inset-inline-start: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 72px;
  height: 4px;
  background: linear-gradient(90deg, var(--auk-pub-accent), var(--auk-pub-accent-2));
  border-radius: 2px;
}
.auk-pubs__subtitle {
  font-size: 16px;
  color: var(--auk-pub-muted);
  line-height: 1.7;
  margin: 12px 0 0;
}

/* Grid */
.auk-pubs__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

/* Card */
.auk-pub-card {
  background: #fff;
  border-radius: var(--auk-pub-radius);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(12, 20, 40, 0.06);
  transition: transform 0.25s var(--auk-pub-ease),
              box-shadow 0.25s var(--auk-pub-ease);
}
.auk-pub-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(12, 20, 40, 0.14);
}
.auk-pub-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.auk-pub-card__cover {
  position: relative;
  aspect-ratio: 3 / 4;
  background: #e1e5ee center/cover no-repeat;
  overflow: hidden;
}
.auk-pub-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(0deg, rgba(45, 77, 137, 0.85), rgba(45, 77, 137, 0.35));
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  opacity: 0;
  transition: opacity 0.25s var(--auk-pub-ease);
}
.auk-pub-card__overlay i { font-size: 18px; }
.auk-pub-card:hover .auk-pub-card__overlay { opacity: 1; }

.auk-pub-card__body {
  padding: 16px 16px 18px;
}
.auk-pub-card__title {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--auk-pub-text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.auk-pub-card__excerpt {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--auk-pub-muted);
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.auk-pub-card__meta {
  display: block;
  font-size: 12.5px;
  color: #94a3b8;
}

/* Pagination */
.auk-pubs__pager {
  margin-top: 40px;
  text-align: center;
}
.auk-pubs__pager .page-numbers {
  display: inline-block;
  padding: 8px 14px;
  margin: 0 3px;
  border-radius: 8px;
  background: #fff;
  color: var(--auk-pub-text);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  border: 1px solid #e1e5ee;
  transition: background 0.15s, color 0.15s;
}
.auk-pubs__pager .page-numbers.current,
.auk-pubs__pager .page-numbers:hover {
  background: var(--auk-pub-accent);
  color: #fff;
  border-color: var(--auk-pub-accent);
}

.auk-pubs__empty {
  text-align: center;
  padding: 80px 20px;
  color: var(--auk-pub-muted);
  font-size: 17px;
}

/* ========== Single =================================================== */
.auk-pub-single { padding: 0 0 64px; }

.auk-pub-single__hero {
  background: linear-gradient(135deg, #2d4d89 0%, #24406f 100%);
  color: #fff;
  padding: 48px 16px 52px;
}
.auk-pub-single__hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  align-items: center;
}
.auk-pub-single__cover {
  position: relative;
}
.auk-pub-single__cover img {
  width: 100%;
  height: auto;
  border-radius: var(--auk-pub-radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
  display: block;
}
.auk-pub-single__meta { color: #fff; }
.auk-pub-single__back {
  display: inline-block;
  padding: 5px 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: 13.5px;
  font-weight: 600;
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.15s;
}
.auk-pub-single__back:hover { color: var(--auk-pub-accent-2); }
.auk-pub-single__title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  margin: 0 0 10px;
  line-height: 1.3;
  color: #fff;
}
.auk-pub-single__date {
  margin: 0 0 16px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 13.5px;
  font-weight: 600;
}
.auk-pub-single__excerpt {
  margin: 0 0 22px;
  font-size: 15.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

.auk-pub-single__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.auk-pub-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: transform 0.15s var(--auk-pub-ease),
              background 0.15s, color 0.15s, border-color 0.15s;
}
.auk-pub-btn:hover { transform: translateY(-2px); }
.auk-pub-btn--primary {
  background: var(--auk-pub-accent-2);
  color: #1e2a44;
}
.auk-pub-btn--primary:hover { background: #ffbf3d; color: #1e2a44; }
.auk-pub-btn--ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.35);
}
.auk-pub-btn--ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

/* Description (the_content) */
.auk-pub-single__description {
  padding: 32px 16px 8px;
}
.auk-pub-single__description-inner {
  max-width: 820px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.85;
  color: var(--auk-pub-text);
}
.auk-pub-single__description-inner p { margin: 0 0 16px; }

/* Viewer section */
.auk-pub-single__viewer-section {
  padding: 28px 16px 0;
}
.auk-pub-single__viewer-inner {
  max-width: 1140px;
  margin: 0 auto;
}
.auk-pub-single__viewer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 19px;
  font-weight: 700;
  color: var(--auk-pub-text);
  margin: 0 0 14px;
  padding-inline-start: 14px;
  border-inline-start: 4px solid var(--auk-pub-accent-2);
}
.auk-pub-single__viewer-title i { color: #d6202a; font-size: 20px; }

.auk-pub-single__viewer {
  border-radius: var(--auk-pub-radius);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(12, 20, 40, 0.12);
  background: #e1e5ee;
}
.auk-pub-single__viewer object,
.auk-pub-single__viewer iframe {
  display: block;
  width: 100%;
  border: 0;
}

.auk-pub-single__no-file {
  text-align: center;
  padding: 60px 20px;
  background: #fff;
  border-radius: var(--auk-pub-radius);
  color: var(--auk-pub-muted);
  font-size: 15.5px;
}

/* ========== Responsive ============================================== */
@media (max-width: 900px) {
  .auk-pub-single__hero-inner {
    grid-template-columns: 220px 1fr;
    gap: 28px;
  }
}

@media (max-width: 767.98px) {
  .auk-pubs { padding: 28px 14px 48px; }
  .auk-pubs__grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .auk-pub-single__hero {
    padding: 32px 14px 36px;
  }
  .auk-pub-single__hero-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    text-align: center;
  }
  .auk-pub-single__cover {
    max-width: 220px;
    margin: 0 auto;
  }
  .auk-pub-single__back { display: inline-block; }
  .auk-pub-single__actions {
    justify-content: center;
  }
  .auk-pub-btn { padding: 10px 16px; font-size: 13.5px; }

  .auk-pub-single__description { padding: 24px 14px 4px; }
  .auk-pub-single__viewer-section { padding: 20px 10px 0; }
  .auk-pub-single__viewer object,
  .auk-pub-single__viewer iframe {
    height: 560px;
  }
}

@media (max-width: 480px) {
  .auk-pub-single__viewer object,
  .auk-pub-single__viewer iframe {
    height: 480px;
  }
}