body { background: var(--paper); }

/* Hero */
.blog-hero { max-width: var(--container); margin: 0 auto; padding: 88px var(--gutter) 64px; border-bottom: 1px solid var(--gray-200); display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: end; }
@media(max-width:720px){ .blog-hero{grid-template-columns:1fr;gap:24px;} }
@media(max-width:767px){ .blog-hero { padding-top: 62px; } }
.blog-hero .eyebrow { margin-bottom: 22px; }
.blog-hero h1 { font-family: var(--font-display); font-size: clamp(40px, 6vw, 72px); font-weight: 500; letter-spacing: -0.035em; line-height: 1.0; }
.blog-hero-right p { font-size: 16px; color: var(--gray-600); line-height: 1.7; margin-bottom: 16px; }
.blog-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.blog-tag { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-500); background: var(--gray-100); border: 1px solid var(--gray-200); border-radius: 999px; padding: 5px 12px; cursor: pointer; transition: all 0.15s; }
.blog-tag:hover, .blog-tag.active { background: var(--ink); color: white; border-color: var(--ink); }
.blog-tag.accent { background: var(--accent-soft); color: var(--accent); border-color: var(--accent-line); }
.blog-featured[hidden], .article-card[hidden] { display: none; }

/* Featured article */
.blog-featured { max-width: var(--container); margin: 0 auto; padding: 56px var(--gutter) 0; }
.featured-article {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid var(--gray-200); border-radius: 16px; overflow: hidden;
  background: white; cursor: pointer; transition: box-shadow 0.3s, transform 0.3s;
  text-decoration: none; color: inherit;
}
.featured-article:hover { box-shadow: 0 16px 48px rgba(0,0,0,0.07); transform: translateY(-2px); }
@media(max-width:720px){ .featured-article{grid-template-columns:1fr;} .fa-visual{min-height:180px;} }
.fa-visual {
  background: linear-gradient(140deg, var(--navy) 0%, #163060 55%, #1a4098 100%);
  min-height: 320px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.fa-visual::before {
  content: ""; position: absolute; top: -30%; right: -10%;
  width: 300px; height: 300px; border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.3) 0%, transparent 70%);
}
.fa-visual img, .ac-visual img { width: 100%; height: 100%; object-fit: cover; display: block; }
.fa-content { padding: 44px 40px; display: flex; flex-direction: column; justify-content: space-between; }
@media(max-width:480px){ .fa-content{padding:28px 24px;} }
.fa-meta { display: flex; gap: 14px; align-items: center; margin-bottom: 20px; }
.fa-cat { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); background: var(--accent-soft); border-radius: 999px; padding: 4px 10px; }
.fa-date { font-family: var(--font-mono); font-size: 10px; color: var(--gray-400); letter-spacing: 0.06em; }
.fa-title { font-family: var(--font-display); font-size: clamp(22px, 2.8vw, 32px); font-weight: 500; letter-spacing: -0.022em; line-height: 1.15; margin: 0 0 16px; color: var(--ink); }
.fa-excerpt { font-size: 15px; color: var(--gray-600); line-height: 1.7; margin-bottom: 28px; }
.fa-footer { display: flex; justify-content: space-between; align-items: center; }
.fa-read { font-family: var(--font-mono); font-size: 11px; color: var(--gray-400); letter-spacing: 0.06em; }
.fa-link { font-size: 14px; color: var(--accent); font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }
.fa-link .arr { transition: transform 0.2s; }
.featured-article:hover .fa-link .arr { transform: translateX(4px); }

/* Article grid */
.blog-grid-wrap { max-width: var(--container); margin: 0 auto; padding: 40px var(--gutter) 80px; }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--gray-200); border: 1px solid var(--gray-200); border-radius: 14px; overflow: hidden; margin-top: 40px; }
@media(max-width:860px){ .blog-grid{grid-template-columns:1fr 1fr;} }
@media(max-width:540px){ .blog-grid{grid-template-columns:1fr;} }
.article-card {
  background: white; padding: 32px 28px; cursor: pointer;
  transition: background 0.2s;
  display: flex; flex-direction: column;
  text-decoration: none; color: inherit;
}
.article-card:hover { background: var(--gray-50); }
.ac-visual { height: 120px; border-radius: 8px; margin-bottom: 20px; display: flex; align-items: center; justify-content: center; overflow: hidden; background: var(--gray-100); }
.ac-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 12px; }
.ac-cat { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.ac-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray-300); }
.ac-date { font-family: var(--font-mono); font-size: 9px; color: var(--gray-400); letter-spacing: 0.06em; }
.ac-title { font-family: var(--font-display); font-size: 17px; font-weight: 500; letter-spacing: -0.015em; line-height: 1.25; margin: 0 0 10px; color: var(--ink); flex: 1; }
.ac-excerpt { font-size: 13px; color: var(--gray-600); line-height: 1.6; margin-bottom: 16px; }
.ac-footer { display: flex; justify-content: space-between; align-items: center; margin-top: auto; }
.ac-read { font-family: var(--font-mono); font-size: 10px; color: var(--gray-400); letter-spacing: 0.06em; }
.ac-arrow { font-size: 14px; color: var(--gray-300); transition: color 0.2s, transform 0.2s; }
.article-card:hover .ac-arrow { color: var(--accent); transform: translateX(3px); }

/* Visual icons for cards */
.vis-bracket { width: 40px; height: 40px; border-left: 2px solid rgba(37,99,235,0.4); border-top: 2px solid rgba(37,99,235,0.4); position: relative; }
.vis-bracket::after { content: ""; position: absolute; right: -40px; bottom: -40px; width: 40px; height: 40px; border-right: 2px solid rgba(37,99,235,0.4); border-bottom: 2px solid rgba(37,99,235,0.4); }
.vis-code { font-family: var(--font-mono); font-size: 12px; color: rgba(37,99,235,0.5); line-height: 1.8; }
.vis-chart { display: flex; align-items: flex-end; gap: 6px; }
.vis-bar { border-radius: 2px; background: rgba(37,150,99,0.4); }