/* ============================================================
   SPEND SPROUT — blog.css
   Styles for The Sprout Route blog page.
   Loaded after global.css — uses the same design tokens.
   ============================================================ */

/* ── Blog Hero ──────────────────────────────────────────────── */
.blog-hero {
  padding: 4rem 0 2rem;
  text-align: center;
  background: var(--white);
}

.blog-hero .section-header h1 {
  font-family: 'PT Sans', var(--font-sans);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

/* ── Blog Articles Section ──────────────────────────────────── */
.blog-articles {
  background: var(--gray-50);
  padding: 2rem 0 5rem;
}

/* ── Blog Grid ──────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 2rem;
  padding: 2rem 0 1rem;
}

/* ── Blog Cards ─────────────────────────────────────────────── */
.blog-card {
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.blog-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.blog-card-inner {
  padding: 1.75rem;
}

/* ── Topic Tag ──────────────────────────────────────────────── */
.blog-topic-tag {
  display: inline-block;
  background: var(--green-100);
  color: var(--green-700);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.75rem;
}

/* ── Card Headings ──────────────────────────────────────────── */
.blog-card h2 {
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 0.75rem;
  color: var(--gray-900);
}

/* ── Abstract ───────────────────────────────────────────────── */
.blog-abstract {
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--gray-600);
  margin-bottom: 1rem;
}

/* ── Keep Reading Button ────────────────────────────────────── */
.blog-read-more {
  background: none;
  border: none;
  color: var(--green-600);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  transition: color 0.15s ease;
  font-family: var(--font-sans);
}

.blog-read-more:hover {
  color: var(--green-700);
}

.blog-chevron {
  transition: transform 0.3s ease;
  display: inline-block;
  line-height: 1;
}

.blog-read-more[aria-expanded="true"] .blog-chevron {
  transform: rotate(180deg);
}

/* ── Full Article Text Reveal ───────────────────────────────── */
.blog-full-text {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: max-height 0.5s ease, opacity 0.4s ease, padding-top 0.4s ease;
  padding-top: 0;
}

.blog-full-text.expanded {
  max-height: 3000px;
  opacity: 1;
  padding-top: 1rem;
  border-top: 1px solid var(--gray-100);
  margin-top: 0.75rem;
}

.blog-full-text p {
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.blog-full-text p:last-child {
  margin-bottom: 0;
}

.blog-full-text strong {
  color: var(--gray-900);
}

.blog-full-text em {
  font-style: italic;
}

/* ── Blog CTA Section ───────────────────────────────────────── */
.blog-cta {
  text-align: center;
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--green-600) 0%, var(--green-700) 100%);
  color: var(--white);
}

.blog-cta .section-header {
  margin-bottom: 0;
}

.blog-cta .section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--white);
}

.blog-cta .section-sub {
  color: rgba(255, 255, 255, 0.85);
  max-width: 520px;
  margin: 0.5rem auto 0;
}

.blog-cta .btn-primary {
  margin-top: 1.75rem;
  background: var(--white);
  color: var(--green-700);
  border-color: var(--white);
}

.blog-cta .btn-primary:hover {
  background: var(--green-50);
  border-color: var(--green-50);
}

/* ── Active nav link (blog page) ────────────────────────────── */
.nav-link-active {
  color: var(--green-700) !important;
  font-weight: 700 !important;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 720px) {
  .blog-hero {
    padding: 3rem 0 1.5rem;
  }

  .blog-articles {
    padding: 1.5rem 0 3.5rem;
  }

  .blog-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 1.5rem 0 1rem;
  }

  .blog-card-inner {
    padding: 1.25rem;
  }

  .blog-card h2 {
    font-size: 1.1rem;
  }

  .blog-cta {
    padding: 3.5rem 0;
  }
}

@media (max-width: 480px) {
  .blog-hero .section-header h1 {
    font-size: 1.5rem;
  }

  .blog-abstract,
  .blog-full-text p {
    font-size: 0.88rem;
  }
}