/* ==========================================================
   LAYOUT VARIANT: magazine
   Site: 021-science (Science Worksheets)
   Source: design-system/layouts/magazine/site-layout.css
   ========================================================== */

/* ==========================================================
   LAYOUT: Magazine — Editorial Multi-Column
   ==========================================================
   Visual: Large featured cards alternating with smaller cards,
   like a science magazine editorial spread. First category gets
   hero treatment (2-col span). List pages use 2-column cards.
   SEO area stacks full-width for readability.
   ========================================================== */

/* ── Homepage: Hero Section ── */
.hero {
  text-align: left;
  padding: 6rem 3rem 5rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  max-width: 700px;
}

.hero .subtitle {
  text-align: left;
  margin-left: 0;
  max-width: 600px;
}

/* ── Homepage: Categories — Magazine Grid ── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* Featured card: first, fourth, seventh — span 2 cols */
.category-card:nth-child(3n+1) {
  grid-column: span 2;
}

.category-card:nth-child(3n+1) h3 {
  font-size: 1.5rem;
}

.category-card:nth-child(3n+1) .category-icon {
  font-size: 3.25rem;
}

.category-card:nth-child(3n+1) p {
  font-size: 1.05rem;
}

/* ── Homepage: Intro Section ── */
.intro-section {
  text-align: left;
  border-left: 5px solid var(--site-primary, #0ea5e9);
  border-radius: 0 8px 8px 0;
  padding-left: 2rem;
}

/* ── List Page: Subcategories — 2-Column Editorial Cards ── */
.category-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  list-style: none;
  padding: 0;
}

.category-list li:first-child {
  grid-column: 1 / -1;
}

.category-list li:first-child a {
  padding: 1.5rem 2rem;
  font-size: 1.1rem;
}

/* ── List Page: Worksheets — Horizontal Cards ── */
.worksheet-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  list-style: none;
  padding: 0;
}

/* ── SEO Components — Full-Width Stacked ── */
.seo-components--primary {
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.seo-card {
  padding: 2rem 2.5rem;
}

.seo-card:nth-child(even) {
  background: var(--site-surface, #f0f9ff);
}

.seo-more-grid {
  grid-template-columns: repeat(2, 1fr);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-card:nth-child(3n+1) {
    grid-column: span 1;
  }
  .category-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .categories-grid {
    grid-template-columns: 1fr;
  }
  .hero {
    padding: 4rem 1.5rem 3rem;
  }
  .seo-more-grid {
    grid-template-columns: 1fr;
  }
}


/* ==========================================================
   LAYOUT VARIANT: grid-cards
   Site: 021-science (Science Worksheets)
   Source: design-system/layouts/grid-cards/site-layout.css
   ========================================================== */

/* ==========================================================
   LAYOUT: Grid-Cards — Uniform Subject Catalog
   ==========================================================
   Visual: All subject cards same size, neat grid. Square
   aspect-ratio, centered icon + title, strong hover effect.
   Ideal for science subject area selection (Biology, Chemistry,
   Physics, Earth Science, Space).
   ========================================================== */

/* ── Homepage: Hero Section — Centered, Clean ── */
.hero {
  padding: 5rem 2rem 4.5rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
}

/* ── Homepage: Categories — Uniform Square Cards ── */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.category-card {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
}

.category-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  transition: transform var(--dur-normal, 250ms) ease;
}

.category-card:hover .category-icon {
  transform: scale(1.2);
}

.category-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.category-card p {
  font-size: 0.85rem;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.category-meta {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--site-border, #e0f2fe);
  width: 100%;
  justify-content: center;
}

/* ── Homepage: Intro Section ── */
.intro-section {
  border-radius: 16px;
  text-align: center;
}

/* ── List Page: Subcategories — 3-Column Even Grid ── */
.category-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  list-style: none;
  padding: 0;
}

.category-list li a {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem 1.25rem;
  border: 1.5px solid var(--site-border, #e0f2fe);
  border-radius: 12px;
  text-decoration: none;
  transition: border-color var(--dur-normal, 250ms) ease,
              box-shadow var(--dur-normal, 250ms) ease,
              transform var(--dur-normal, 250ms) ease;
  min-height: 120px;
  justify-content: center;
}

.category-list li a:hover {
  border-color: var(--site-primary, #0ea5e9);
  box-shadow: var(--shadow-md, 0 4px 8px rgba(14, 165, 233, 0.10));
  transform: translateY(-3px);
}

.category-list li a .name {
  font-weight: 700;
  font-size: 1rem;
}

.category-list li a .description {
  font-size: 0.8rem;
  opacity: 0.6;
  margin-top: 0.375rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── List Page: Worksheets — Button Grid ── */
.worksheet-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  list-style: none;
  padding: 0;
}

.worksheet-list li a {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1rem;
  border: 1.5px solid var(--site-border, #e0f2fe);
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: border-color var(--dur-fast, 150ms) ease,
              background var(--dur-fast, 150ms) ease;
}

.worksheet-list li a:hover {
  border-color: var(--site-primary, #0ea5e9);
  background: var(--site-primary-light, #f0f9ff);
}

/* ── SEO Components — Large 3-Column Cards ── */
.seo-components--primary {
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.seo-card {
  padding: 2rem 1.75rem;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}

.seo-card p:last-child {
  margin-top: auto;
}

.seo-more-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .seo-components--primary {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .category-card {
    aspect-ratio: auto;
    padding: 1.5rem 1.25rem;
  }
  .seo-components--primary {
    grid-template-columns: 1fr;
  }
  .category-list {
    grid-template-columns: 1fr;
  }
}