/* ==========================================================================
   BRIGHT – THE SCHOOL | Educational Magazine & Blog Design System
   Architecture: Pure Vanilla CSS3 with Custom Properties
   Creative Direction: Premium Children's Educational Magazine
   Palette: Warm Cream, Sunshine, Coral, Mint, Sky Blue, Lavender
   Typography: Fredoka (Headings) & Nunito Sans (Prose)
   ========================================================================== */

/* ==========================================================================
   1. Blog Hub / Magazine Index
   ========================================================================== */

.blog-hero {
  background: linear-gradient(180deg, #FFF7E9 0%, #FFFDF9 100%);
  padding: 5rem 0 3.5rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.blog-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #C27600;
  background: var(--color-sunshine-light);
  padding: 0.45rem 1.25rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.blog-hero h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.6rem);
  color: var(--color-charcoal);
  margin-bottom: 1rem;
}

.blog-hero p {
  color: var(--color-charcoal-muted);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
  line-height: 1.65;
}

/* Playful Search Bar */
.blog-search-wrapper {
  max-width: 540px;
  margin: 0 auto;
  position: relative;
}

.blog-search-input {
  width: 100%;
  padding: 1rem 1.5rem 1rem 3.4rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(255, 184, 77, 0.4);
  background-color: var(--color-white);
  color: var(--color-charcoal);
  outline: none;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.blog-search-input:focus {
  border-color: var(--color-coral);
  box-shadow: 0 0 0 4px rgba(255, 128, 110, 0.2);
}

.blog-search-icon {
  position: absolute;
  left: 1.25rem;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-sunshine);
  pointer-events: none;
}

/* Category Filter Pills */
.blog-filters-section {
  padding: 1.25rem 0;
  background-color: rgba(255, 253, 249, 0.95);
  border-bottom: 2px dashed rgba(255, 184, 77, 0.25);
  position: sticky;
  top: var(--header-height);
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.category-filter-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
}

.category-filter-btn {
  background: var(--color-white);
  border: 1.5px solid rgba(48, 52, 59, 0.08);
  color: var(--color-charcoal-muted);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 1.25rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-bounce);
}

.category-filter-btn:hover {
  background-color: var(--color-cream-warm);
  color: var(--color-charcoal);
  transform: translateY(-2px);
}

.category-filter-btn.is-active {
  background-color: var(--color-coral);
  color: #FFFFFF;
  border-color: var(--color-coral);
  box-shadow: var(--shadow-coral);
}

/* Featured Article Card (Magazine Spotlight) */
.featured-article-card {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  background-color: var(--color-white);
  border-radius: 36px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 3px solid var(--color-sunshine-light);
  margin-bottom: 4rem;
  transition: all var(--transition-bounce);
}

.featured-article-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-playful);
  border-color: var(--color-sunshine);
}

.featured-media {
  height: 420px;
  overflow: hidden;
  position: relative;
}

.featured-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}

.featured-article-card:hover .featured-media img {
  transform: scale(1.04);
}

.featured-content {
  padding: 3.5rem 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-badge {
  display: inline-block;
  align-self: flex-start;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #D64531;
  background: var(--color-coral-light);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.featured-title {
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  font-weight: 700;
  line-height: 1.22;
  margin-bottom: 1rem;
  color: var(--color-charcoal);
}

.featured-title a:hover {
  color: var(--color-coral);
}

.featured-excerpt {
  color: var(--color-charcoal-muted);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 1.75rem;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  font-size: 0.875rem;
  color: var(--color-charcoal-light);
  margin-bottom: 1.75rem;
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.meta-item svg {
  width: 15px;
  height: 15px;
  color: var(--color-sunshine);
}

/* Magazine Article Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2.5rem;
  margin-bottom: 5rem;
}

.blog-card {
  background-color: var(--color-white);
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 2px solid transparent;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-bounce);
}

.blog-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-playful);
  border-color: var(--color-sunshine);
}

.blog-card-media {
  height: 240px;
  overflow: hidden;
  position: relative;
}

.blog-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}

.blog-card:hover .blog-card-media img {
  transform: scale(1.05);
}

.blog-card-body {
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.blog-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--color-charcoal);
}

.blog-card-title a:hover {
  color: var(--color-coral);
}

.blog-card-excerpt {
  font-size: 0.925rem;
  color: var(--color-charcoal-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.blog-card-footer {
  padding-top: 1rem;
  border-top: 1.5px dashed rgba(48, 52, 59, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-charcoal-light);
}

/* ==========================================================================
   2. Single Article Detail Page (Playful Educational Magazine)
   ========================================================================== */

.article-hero {
  padding: 5rem 0 3rem 0;
  background: linear-gradient(180deg, #FFF7E9 0%, #FFFDF9 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.article-hero-inner {
  max-width: 860px;
  margin: 0 auto;
}

.article-category-pill {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #D64531;
  background: var(--color-coral-light);
  padding: 0.4rem 1.25rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.25rem;
}

.article-hero-title {
  font-size: clamp(2.2rem, 4.8vw, 3.4rem);
  font-weight: 700;
  line-height: 1.18;
  color: var(--color-charcoal);
  margin-bottom: 1.5rem;
}

.article-playful-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.9rem;
  color: var(--color-charcoal-muted);
}

.reading-pill {
  background-color: var(--color-sunshine-light);
  color: #A66500;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-weight: 600;
}

/* Article Hero Visual */
.article-main-container {
  max-width: 840px;
  margin: 0 auto;
  padding: 0 1.5rem 6rem 1.5rem;
}

.article-featured-image {
  border-radius: 36px;
  overflow: hidden;
  margin-bottom: 3.5rem;
  box-shadow: var(--shadow-lg), 0 0 0 6px rgba(255, 255, 255, 0.9), 0 0 0 10px var(--color-sunshine-light);
  border: 1px solid rgba(48, 52, 59, 0.06);
}

.article-featured-image img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
}

/* Playful Table of Contents */
.article-toc {
  background-color: var(--color-cream-warm);
  border-radius: 28px;
  border: 2px dashed rgba(255, 184, 77, 0.4);
  padding: 2.25rem 2.5rem;
  margin-bottom: 3.5rem;
}

.article-toc-title {
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #C27600;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.article-toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.article-toc-list a {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-charcoal);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.article-toc-list a:hover {
  color: var(--color-coral);
  transform: translateX(6px);
}

/* Article Prose Typography */
.article-prose {
  font-size: 1.125rem;
  line-height: 1.82;
  color: #3C424C;
}

.article-prose .lead {
  font-size: 1.3rem;
  line-height: 1.65;
  color: var(--color-charcoal);
  font-weight: 600;
  margin-bottom: 2.5rem;
  border-left: 4px solid var(--color-coral);
  padding-left: 1.5rem;
}

.article-prose h2 {
  font-size: 1.95rem;
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-charcoal);
  margin-top: 3.5rem;
  margin-bottom: 1.25rem;
  position: relative;
}

.article-prose h3 {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-top: 2.5rem;
  margin-bottom: 0.85rem;
}

.article-prose p {
  margin-bottom: 1.75rem;
  color: #3C424C;
}

.article-prose ul, .article-prose ol {
  margin-bottom: 2rem;
  padding-left: 1.75rem;
}

.article-prose li {
  margin-bottom: 0.75rem;
  color: #3C424C;
  line-height: 1.7;
}

/* Playful Parent Takeaway Box */
.takeaway-box {
  background-color: var(--color-white);
  border-radius: 28px;
  border: 2px solid var(--color-mint);
  padding: 2.25rem 2.5rem;
  margin: 3rem 0;
  box-shadow: var(--shadow-mint);
  position: relative;
  overflow: hidden;
}

.takeaway-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 100%;
  background-color: var(--color-mint);
}

.takeaway-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #1F835E;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.takeaway-title svg {
  width: 22px;
  height: 22px;
}

.takeaway-box p {
  margin-bottom: 0;
  font-size: 1rem;
  color: var(--color-charcoal);
  line-height: 1.65;
}

/* Playful Author Bio */
.article-author-bio {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 2.25rem 2.5rem;
  background-color: var(--color-cream-warm);
  border-radius: 28px;
  border: 2px dashed rgba(255, 184, 77, 0.4);
  margin: 4.5rem 0 3.5rem 0;
}

.author-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-coral);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.35rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-coral);
}

.author-info h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-charcoal);
  margin-bottom: 0.35rem;
}

.author-info p {
  font-size: 0.925rem;
  color: var(--color-charcoal-muted);
  line-height: 1.55;
  margin-bottom: 0;
}

/* Playful Admissions Contextual CTA Box */
.article-cta-card {
  background: linear-gradient(135deg, #FFB84D 0%, #FF806E 100%);
  color: #FFFFFF;
  border-radius: 32px;
  padding: 3rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
  margin-top: 2rem;
  box-shadow: 0 16px 40px rgba(255, 128, 110, 0.35);
}

.article-cta-card h3 {
  color: #FFFFFF;
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.article-cta-card p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 0;
  max-width: 480px;
}

@media (max-width: 768px) {
  .featured-article-card {
    grid-template-columns: 1fr;
  }
  .featured-media {
    height: 260px;
  }
  .featured-content {
    padding: 2rem 1.5rem;
  }
  .blog-grid {
    grid-template-columns: 1fr !important;
    gap: 1.75rem !important;
  }
  .article-cta-card {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem 1.25rem !important;
    border-radius: 24px !important;
  }
  .article-author-bio {
    flex-direction: column;
    text-align: center;
    padding: 1.75rem 1.25rem !important;
    border-radius: 22px !important;
  }
  .takeaway-box {
    padding: 1.6rem 1.25rem !important;
    margin: 2rem 0 !important;
    border-radius: 22px !important;
  }
  .article-meta {
    flex-wrap: wrap;
    gap: 0.75rem;
  }
}

@media (max-width: 480px) {
  .article-hero {
    padding: 3.5rem 0 2rem 0;
  }
  .article-cta-card h3 {
    font-size: 1.35rem;
  }
}