/* ─── Page: Insights (index + individual posts) ─── */

/* ─── INDEX HERO ─── */
.ins-hero {
  position: relative;
  height: 52vh; min-height: 380px;
  display: flex; align-items: flex-end;
  overflow: hidden;
  background: #060610;
}
.ins-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #060610 0%, #0c0c2a 100%);
}
.ins-hero-content {
  position: relative; z-index: 2;
  padding: 0 var(--px) 72px;
  max-width: calc(var(--w) + var(--px) * 2);
  width: 100%;
}
.ins-hero-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 16px;
}
.ins-hero h1 {
  font-size: clamp(30px, 4.4vw, 51px);
  font-weight: 800; color: #fff;
  letter-spacing: -0.03em; line-height: 1.05;
  margin-bottom: 18px;
}
.ins-hero p {
  font-size: 17px; color: rgba(255,255,255,0.6);
  max-width: 540px; line-height: 1.65;
}

/* ─── INDEX GRID ─── */
.ins-section {
  padding: 80px var(--px);
  max-width: calc(var(--w) + var(--px) * 2);
  margin: 0 auto;
}
.ins-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.ins-card {
  display: flex; flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: var(--white);
  transition: box-shadow .2s, transform .2s;
  text-decoration: none; color: inherit;
}
.ins-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.09);
  transform: translateY(-2px);
}
.ins-card-body { padding: 32px; flex: 1; display: flex; flex-direction: column; gap: 16px; }
.ins-card-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.ins-tag {
  display: inline-block;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 4px;
}
.ins-tag--founders { background: #e8ecff; color: var(--blue); }
.ins-tag--engineers { background: #f0faf0; color: #1a7a3a; }
.ins-tag--industry { background: #fff7e0; color: #9a6700; }
.ins-read-time { font-size: 12px; color: var(--muted); }
.ins-card h2 {
  font-size: 20px; font-weight: 700; color: var(--black);
  letter-spacing: -0.3px; line-height: 1.3; margin: 0;
}
.ins-card-excerpt {
  font-size: 15px; color: var(--muted); line-height: 1.7;
  margin: 0; flex: 1;
}
.ins-card-link {
  font-size: 13px; font-weight: 600; color: var(--blue);
  margin-top: 8px; display: inline-block;
}

/* ─── POST HERO ─── */
.post-hero {
  position: relative;
  padding: 120px var(--px) 72px;
  background: #060610;
  overflow: hidden;
}
.post-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #060610 0%, #0d0d24 100%);
}
.post-hero-content {
  position: relative; z-index: 2;
  max-width: calc(var(--content) + var(--px) * 2);
  margin: 0 auto;
}
.post-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: rgba(255,255,255,0.45);
  margin-bottom: 28px;
}
.post-breadcrumb a { color: rgba(255,255,255,0.45); text-decoration: none; }
.post-breadcrumb a:hover { color: rgba(255,255,255,0.75); }
.post-breadcrumb span { color: rgba(255,255,255,0.3); }
.post-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.post-hero h1 {
  font-size: clamp(26px, 3.8vw, 46px);
  font-weight: 800; color: #fff;
  letter-spacing: -0.03em; line-height: 1.1;
  max-width: 800px; margin: 0;
}

/* ─── POST ARTICLE ─── */
.post-wrap {
  max-width: calc(var(--content) + var(--px) * 2);
  margin: 0 auto;
  padding: 72px var(--px) 96px;
}
.post-body { max-width: 720px; }
.post-body p {
  font-size: 17px; color: var(--text, #222);
  line-height: 1.85; margin-bottom: 24px;
}
.post-body h2 {
  font-size: 22px; font-weight: 700; color: var(--black);
  letter-spacing: -0.3px; line-height: 1.25;
  margin: 40px 0 16px;
}
.post-body ul {
  margin: 0 0 24px 0; padding-left: 24px;
}
.post-body li {
  font-size: 17px; color: var(--text, #222);
  line-height: 1.85; margin-bottom: 10px;
}
.post-body strong { color: var(--black); font-weight: 700; }

/* ─── POST META TEXT (hero subtitle) ─── */
.post-meta-text { font-size: 12px; color: rgba(255,255,255,0.45); }

/* ─── POST MEDIA ─── */
.post-img { margin: 40px 0; max-width: 720px; }
.post-img img { width: 100%; height: auto; border-radius: 10px; display: block; }
.post-img figcaption { font-size: 13px; color: var(--muted); margin-top: 10px; line-height: 1.5; }
.post-video { margin: 40px 0; max-width: 720px; position: relative; padding-bottom: 56.25%; height: 0; border-radius: 10px; overflow: hidden; }
.post-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ─── POST CTA ─── */
.post-cta {
  margin: 64px 0 80px;
  padding: 40px 48px;
  background: #060610;
  border-radius: 14px;
  max-width: 720px;
}
.post-cta p {
  font-size: 16px; color: rgba(255,255,255,0.65);
  line-height: 1.7; margin: 0 0 24px;
}
.post-cta .btn { display: inline-flex; }

/* ─── LIBRARY FEATURED ARTICLE ─── */
.ins-lib-feature { display: block; background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 32px; text-decoration: none; color: inherit; transition: box-shadow .2s; margin-bottom: 28px; }
.ins-lib-feature:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.09); }
.ins-lib-feature-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue); margin-bottom: 12px; }
.ins-lib-feature-title { font-size: 22px; font-weight: 700; color: var(--black); line-height: 1.25; margin-bottom: 12px; max-width: 680px; }
.ins-lib-feature-sub { font-size: 15px; color: var(--muted); line-height: 1.6; margin-bottom: 20px; max-width: 680px; }
.ins-lib-feature-link { font-size: 13px; font-weight: 600; color: var(--blue); }

/* ─── LIBRARY INDEX ─── */
.ins-lib-hero { text-align: center; border-bottom: 1px solid var(--border); }
.ins-lib-section { max-width: calc(var(--w) + var(--px) * 2); margin: 0 auto; padding: 72px var(--px) 96px; }
.ins-lib-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; }
.ins-lib-card { background: var(--white); padding: 28px 28px 24px; display: flex; flex-direction: column; gap: 6px; transition: background .15s; }
.ins-lib-card:hover { background: #fafafa; }
.ins-lib-num { font-size: 10.5px; font-weight: 700; color: var(--blue); opacity: 0.55; letter-spacing: 0.1em; margin-bottom: 2px; }
.ins-lib-name { font-size: 17px; font-weight: 700; color: var(--black); line-height: 1.25; }
.ins-lib-sub { font-size: 12.5px; color: var(--muted); }
.ins-lib-actions { display: flex; gap: 12px; align-items: center; margin-top: 16px; flex-wrap: wrap; }
.ins-lib-video { font-size: 13px; font-weight: 600; background: var(--blue); color: #fff; padding: 8px 14px; border-radius: 6px; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; transition: opacity .18s; }
.ins-lib-video:hover { opacity: 0.82; }
.ins-lib-article { font-size: 13px; font-weight: 600; color: var(--blue); text-decoration: none; }
.ins-lib-article:hover { text-decoration: underline; }

/* ─── POST NAVIGATION ─── */
.post-nav {
  display: flex; justify-content: space-between; align-items: center;
  max-width: 720px; margin-top: 32px; padding-top: 28px;
  border-top: 1px solid var(--border);
}
.post-nav-back { font-size: 14px; font-weight: 600; color: var(--black); text-decoration: none; opacity: 0.55; transition: opacity .15s; }
.post-nav-back:hover { opacity: 1; }
.post-nav-next { font-size: 14px; font-weight: 600; color: var(--blue); text-decoration: none; margin-left: auto; }
.post-nav-next:hover { text-decoration: underline; }

/* ─── LIBRARY VIDEO GRID ─── */
.ins-vid-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ins-vid-card { background: var(--white); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; display: flex; flex-direction: column; transition: box-shadow .2s, transform .2s; }
.ins-vid-card:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.1); transform: translateY(-2px); }
.ins-vid-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #111; display: block; text-decoration: none; }
.ins-vid-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: opacity .25s; }
.ins-vid-card:hover .ins-vid-thumb img { opacity: 0.78; }
.ins-vid-play { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.ins-vid-play-btn { width: 44px; height: 44px; background: rgba(0,0,0,0.62); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 15px; padding-left: 3px; transition: background .2s, transform .2s; }
.ins-vid-card:hover .ins-vid-play-btn { background: var(--blue); transform: scale(1.1); }
.ins-vid-info { padding: 14px 16px 16px; flex: 1; display: flex; flex-direction: column; }
.ins-vid-num { font-size: 10px; font-weight: 700; color: var(--blue); letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 4px; opacity: 0.65; }
.ins-vid-name { font-size: 14px; font-weight: 700; color: var(--black); line-height: 1.3; margin-bottom: 4px; }
.ins-vid-sub { font-size: 11.5px; color: var(--muted); line-height: 1.4; flex: 1; }
.ins-vid-link { margin-top: 12px; font-size: 12px; font-weight: 600; color: var(--blue); text-decoration: none; display: inline-block; }
.ins-vid-link:hover { text-decoration: underline; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1100px) {
  .ins-vid-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .ins-grid { grid-template-columns: 1fr; }
  .ins-lib-grid { grid-template-columns: 1fr; }
  .ins-vid-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .ins-card-body { padding: 24px; }
  .post-cta { padding: 28px 24px; }
  .ins-lib-card { padding: 22px 20px 20px; }
  .ins-vid-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
}
@media (max-width: 400px) {
  .ins-vid-grid { grid-template-columns: 1fr; }
}