/* =============================================================================
   lib/styles/pages/resource_detail_page.css
   ============================================================================ */

.resource-detail-page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background-color: var(--color-surface-primary, #ffffff);
}

.resource-detail-page__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-12, 3rem);
}

.resource-detail-page--empty {
  display: flex;
  flex: 1 0 auto;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6, 1.5rem);
  padding: var(--space-16, 4rem) 0;
  text-align: center;
}

.resource-detail-page__empty-copy {
  margin: 0;
  font-size: var(--font-size-body-lg, 1.125rem);
  color: var(--color-text-secondary, #4b5563);
}

.resource-detail-page__meta-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.875rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full, 9999px);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse, #ffffff);
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 500;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.resource-detail-page__hero-wrapper {
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-xl, 1rem);
  background-color: var(--color-background-alt, #f9fafb);
  box-shadow:
    0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  aspect-ratio: 16 / 9;
}

.resource-detail-page__hero-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.resource-detail-page__section {
  margin-bottom: var(--space-10, 2.5rem);
}

.resource-detail-page__section-title {
  position: relative;
  margin-top: 0;
  margin-bottom: var(--space-5, 1.25rem);
  padding-bottom: var(--space-3, 0.75rem);
  border-bottom: 1px solid var(--color-border-subtle, #eaeaea);
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h3, 1.5rem);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
}

.resource-detail-page__section-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 4rem;
  height: 3px;
  border-radius: var(--radius-full, 9999px);
  background-color: var(--color-primary, #0052e0);
}

.resource-detail-page__copy {
  max-width: 75ch;
  margin-bottom: var(--space-6, 1.5rem);
  font-size: var(--font-size-body-lg, 1.125rem);
  line-height: 1.7;
  color: var(--color-text-secondary, #4b5563);
}

.resource-detail-page__copy:last-child {
  margin-bottom: 0;
}

.resource-detail-page__section--highlight {
  padding: var(--space-8, 2rem);
  border: 1px solid var(--color-border-subtle, #eaeaea);
  border-radius: var(--radius-xl, 1rem);
  background-color: var(--color-background-alt, #f9fafb);
}

.resource-detail-page__section--highlight .resource-detail-page__section-title {
  padding-bottom: 0;
  border-bottom: none;
}

.resource-detail-page__section--highlight .resource-detail-page__section-title::after {
  display: none;
}

.resource-detail-page__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4, 1rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.resource-detail-page__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3, 0.75rem);
}

.resource-detail-page__list-icon {
  flex-shrink: 0;
  margin-top: 0.125rem;
  font-size: 1.125rem;
  color: var(--color-primary, #0052e0);
}

.resource-detail-page__list-text {
  font-size: var(--font-size-body, 1rem);
  line-height: 1.5;
  color: var(--color-text-primary, #1f2937);
}

.resource-detail-page__external-cta {
  margin-bottom: var(--space-10, 2.5rem);
  padding: var(--space-8, 2rem);
  border-radius: var(--radius-xl, 1rem);
  background-color: var(--color-trust-navy, #0f294a);
  color: var(--color-text-inverse, #ffffff);
  text-align: center;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.resource-detail-page__external-title {
  margin-top: 0;
  margin-bottom: var(--space-2, 0.5rem);
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h4, 1.25rem);
  font-weight: 700;
}

.resource-detail-page__external-copy {
  margin-bottom: var(--space-6, 1.5rem);
  font-size: var(--font-size-body, 1rem);
  color: rgba(255, 255, 255, 0.85);
}

.resource-detail-page__related-grid {
  display: grid;
  gap: var(--space-6, 1.5rem);
}

@media (min-width: 960px) {
  .resource-detail-page__related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.resource-detail-page__related-card {
  height: 100%;
}

.resource-detail-page__sidebar-card {
  margin-top: var(--space-4, 1rem);
  padding: var(--space-6, 1.5rem);
  border: 1px solid var(--color-border-subtle, #eaeaea);
  border-radius: var(--radius-xl, 1rem);
  background-color: var(--color-background-alt, #f9fafb);
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.05),
    0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

.resource-detail-page__sidebar-icon {
  margin-bottom: var(--space-3, 0.75rem);
  font-size: 1.5rem;
  color: var(--color-primary, #0052e0);
}

.resource-detail-page__sidebar-title {
  margin-top: 0;
  margin-bottom: var(--space-6, 1.5rem);
  font-family: var(--font-heading, system-ui, sans-serif);
  font-size: var(--font-size-h5, 1.125rem);
  font-weight: 700;
  color: var(--color-text-primary, #111827);
}

.resource-detail-page__sidebar-group {
  margin-bottom: var(--space-5, 1.25rem);
}

.resource-detail-page__sidebar-label {
  display: block;
  margin-bottom: var(--space-2, 0.5rem);
  font-size: var(--font-size-xs, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted, #6b7280);
}

.resource-detail-page__sidebar-value {
  margin: 0;
  font-size: var(--font-size-sm, 0.875rem);
  font-weight: 500;
  color: var(--color-text-primary, #111827);
}

.resource-detail-page__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 0.5rem);
}

.resource-detail-page__tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border: 1px solid var(--color-border-subtle, #eaeaea);
  border-radius: var(--radius-full, 9999px);
  background: var(--color-surface-primary, #ffffff);
  font-size: var(--font-size-xs, 0.75rem);
  color: var(--color-text-secondary, #4b5563);
}

.resource-detail-page__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 3rem;
  padding: 0 var(--space-6, 1.5rem);
  border: 1px solid transparent;
  border-radius: var(--radius-full, 9999px);
  font-size: var(--font-size-body, 1rem);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--motion-transition-interactive, 180ms ease-out),
    background-color var(--motion-transition-interactive, 180ms ease-out),
    color var(--motion-transition-interactive, 180ms ease-out),
    border-color var(--motion-transition-interactive, 180ms ease-out),
    box-shadow var(--motion-transition-interactive, 180ms ease-out),
    opacity var(--motion-transition-interactive, 180ms ease-out);
}

@media (min-width: 600px) {
  .resource-detail-page__btn {
    width: auto;
  }

  .resource-detail-page__sidebar-card .resource-detail-page__btn {
    width: 100%;
  }
}

.resource-detail-page__btn:active {
  transform: scale(0.98);
}

.resource-detail-page__btn--primary {
  margin-top: var(--space-4, 1rem);
  background-color: var(--color-primary, #0052e0);
  color: var(--color-text-inverse, #ffffff);
}

.resource-detail-page__btn--primary:hover,
.resource-detail-page__btn--primary:focus-visible {
  background-color: var(--color-primary-dark, #003db3);
}

.resource-detail-page__btn--secondary {
  background-color: var(--color-surface-primary, #ffffff);
  color: var(--color-trust-navy, #0f294a);
}

.resource-detail-page__btn--secondary:hover,
.resource-detail-page__btn--secondary:focus-visible {
  background-color: var(--color-background-alt, #f9fafb);
}

.resource-detail-page__btn-icon {
  display: inline-flex;
  align-items: center;
  margin-left: var(--space-2, 0.5rem);
  font-size: 0.875rem;
}

@media (max-width: 767px) {
  .resource-detail-page__body {
    gap: var(--space-10, 2.5rem);
  }

  .resource-detail-page__section--highlight,
  .resource-detail-page__external-cta,
  .resource-detail-page__sidebar-card {
    padding: var(--space-6, 1.5rem);
  }
}