.navbar {
  align-items: center;
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  min-height: 56px;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.navbar a {
  color: var(--color-text);
  font-weight: 600;
}

.brand-link {
  color: var(--color-primary) !important;
  font-size: 1.05rem;
  white-space: nowrap;
}

.navbar-links {
  align-items: center;
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.navbar-links a {
  border-radius: 999px;
  color: var(--color-muted);
  padding: 8px 12px;
  white-space: nowrap;
}

.navbar-links a:hover,
.navbar-links a.is-active {
  background: #eaf4f1;
  color: var(--color-primary);
}

.catalog-page {
  display: grid;
  gap: 18px;
}

.catalog-hero {
  align-items: end;
  background: linear-gradient(135deg, #0f5f55, #1f7a68 58%, #e0b84f);
  border-radius: var(--radius);
  color: #ffffff;
  display: flex;
  justify-content: space-between;
  min-height: 190px;
  padding: 28px;
}

.catalog-hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
  margin: 0 0 12px;
}

.catalog-hero p {
  margin: 0;
  max-width: 620px;
}

.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  margin-bottom: 8px !important;
  text-transform: uppercase;
}

.hero-stat {
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: var(--radius);
  display: grid;
  min-width: 150px;
  padding: 14px;
  text-align: right;
}

.hero-stat strong {
  font-size: 2.5rem;
  line-height: 1;
}

.hero-stat span {
  font-weight: 700;
}

.catalog-filters {
  align-items: end;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(240px, 1.4fr) minmax(150px, 0.7fr) minmax(180px, 0.9fr) auto auto;
}

.button-link,
.secondary-link {
  align-items: center;
  border-radius: var(--radius);
  display: inline-flex;
  justify-content: center;
  min-height: 42px;
  padding: 0.6rem 0.9rem;
}

.button-link {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.secondary-link {
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.catalog-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.catalog-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: grid;
  overflow: hidden;
}

.catalog-cover-link img {
  aspect-ratio: 4 / 3;
  background: #eef0f3;
  display: block;
  object-fit: cover;
  width: 100%;
}

.catalog-card-body {
  display: grid;
  gap: 9px;
  padding: 16px;
}

.catalog-card-body h2 {
  font-size: 1.1rem;
  line-height: 1.25;
  margin: 0;
}

.catalog-card-body p {
  margin: 0;
}

.author {
  font-weight: 700;
}

.muted {
  color: var(--color-muted);
}

.resource-card-meta,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  background: #eef6f4;
  border-radius: 999px;
  color: #14594f;
  display: inline-flex;
  font-size: 0.82rem;
  padding: 4px 9px;
}

.empty-state {
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  grid-column: 1 / -1;
  padding: 32px;
  text-align: center;
}

.empty-state h2,
.empty-state p {
  margin: 0;
}

.empty-state p {
  color: var(--color-muted);
  margin-top: 8px;
}

.page-title-panel {
  display: grid;
  gap: 6px;
}

.page-title-panel h1,
.page-title-panel p {
  margin: 0;
}

.resource-detail-user {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(220px, 340px) 1fr;
}

.detail-cover-user {
  aspect-ratio: 3 / 4;
  background: #eef0f3;
  border-radius: var(--radius);
  object-fit: cover;
  width: 100%;
}

.detail-panel {
  align-content: start;
  display: grid;
  gap: 14px;
}

.detail-panel h1,
.detail-panel p {
  margin: 0;
}

.back-link {
  font-weight: 700;
}

.detail-list {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin: 0;
}

.detail-list div {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px;
}

.detail-list dt {
  color: var(--color-muted);
  font-size: 0.85rem;
  font-weight: 700;
}

.detail-list dd {
  margin: 2px 0 0;
}

@media (max-width: 820px) {
  .navbar {
    align-items: stretch;
    display: grid;
    gap: 8px;
    padding: 12px 16px;
  }

  .navbar-links {
    padding-bottom: 2px;
  }

  .catalog-hero {
    align-items: start;
    display: grid;
    gap: 20px;
    min-height: 0;
  }

  .hero-stat {
    text-align: left;
  }

  .catalog-filters,
  .resource-detail-user {
    grid-template-columns: 1fr;
  }
}

/* ── ACCESO A RECURSOS DIGITALES ─────────────────────────────────────── */
.recurso-acceso {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.acceso-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
  margin: 0;
}

.btn-acceso {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
  width: fit-content;
}

.btn-acceso:hover {
  opacity: 0.85;
}

.epub-nav {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
}

.acceso-no-disponible {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 8px;
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.3);
  font-size: 0.95rem;
}