/* =====================================================
   blog-index.css — Blog Listing Page Styles
   Used by: blog/index.html
   ===================================================== */

/* HERO */
.blog-hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--card-border);
  position: relative;
  overflow: hidden;
}

.blog-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -100px;
  width: 500px;
  height: 400px;
  background: radial-gradient(circle, rgba(23, 230, 140, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.blog-hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.blog-hero p {
  color: var(--gray);
  font-size: 18px;
  font-weight: 300;
  max-width: 560px;
  line-height: 1.7;
}

/* FILTER BAR */
.filter-bar {
  padding: 32px 0;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Space Grotesk', sans-serif;
  cursor: pointer;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  color: var(--gray);
  transition: all 0.2s;
}

.filter-btn:hover { color: var(--white); border-color: rgba(255, 255, 255, 0.2); }
.filter-btn.active { background: var(--accent-dim); border-color: var(--accent-border); color: var(--accent); }

/* POSTS SECTION */
.posts-section { padding: 64px 0 80px; }

.featured-post {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-bottom: 2px;
}

.post-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 40px;
  text-decoration: none;
  display: block;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.post-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.post-card:hover::after        { transform: scaleX(1); }
.post-card:hover               { background: rgba(23, 230, 140, 0.03); border-color: var(--accent-border); }
.post-card:hover .post-arrow   { transform: translate(4px, -4px); color: var(--accent); }

.post-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px;
}

.post-featured-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 20px;
  font-family: 'Space Grotesk', sans-serif;
}

.post-featured-label::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.post-category {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
  display: block;
  font-family: 'Space Grotesk', sans-serif;
}

.post-card h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--white);
  margin-bottom: 16px;
}

.post-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--white);
  margin-bottom: 12px;
}

.post-excerpt {
  color: var(--gray);
  font-size: 15px;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: 28px;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--gray);
}

.meta-dot  { width: 3px; height: 3px; border-radius: 50%; background: var(--gray); }
.read-time { display: flex; align-items: center; gap: 5px; }

.post-arrow {
  width: 20px; height: 20px;
  color: var(--gray);
  transition: all 0.25s ease;
  flex-shrink: 0;
  position: absolute;
  top: 32px; right: 32px;
}

.featured-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.featured-visual svg { width: 80px; height: 80px; color: var(--accent); opacity: 0.6; }

/* POSTS GRID */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 2px;
}

/* NEWSLETTER */
.newsletter-section {
  padding: 80px 0;
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.newsletter-section h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.newsletter-section p {
  color: var(--gray);
  font-size: 16px;
  font-weight: 300;
  margin-bottom: 32px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: 13px 16px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  color: var(--white);
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.newsletter-input::placeholder { color: var(--gray); opacity: 0.6; }
.newsletter-input:focus { border-color: var(--accent-border); }
.newsletter-note { font-size: 12px; color: var(--gray); margin-top: 12px; font-weight: 300; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .post-card.featured  { grid-column: span 1; grid-template-columns: 1fr; }
  .featured-visual     { display: none; }
  .featured-post       { grid-template-columns: 1fr; }
  .posts-grid          { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .newsletter-form { flex-direction: column; }
  .post-card       { padding: 28px; }
}