/* ============================================================
   CollectViz blog (collectviz.ai/blog) — article + index styles.
   Layers on top of styles.css (tokens, nav, footer, buttons, .grad, .eyebrow).
   ============================================================ */

/* ---- breadcrumb ---- */
.crumbs { font-size: 0.85rem; color: var(--slate-dim); margin-bottom: 18px; display: flex; gap: 8px; align-items: center; }
.crumbs a { color: var(--slate); text-decoration: none; }
.crumbs a:hover { color: var(--cloud); }
.crumbs span { opacity: 0.5; }

/* ---- article ---- */
.article { max-width: 760px; margin: 0 auto; padding: clamp(36px, 6vw, 68px) 24px clamp(48px, 7vw, 88px); }
.article > h1 {
  font-size: clamp(2rem, 4.6vw, 3rem); line-height: 1.08; letter-spacing: -0.025em; margin: 4px 0 0;
  background: linear-gradient(180deg, #ffffff 0%, #cfe0f4 70%, #f3d9ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.article-meta { color: var(--slate-dim); font-size: 0.86rem; font-weight: 600; margin: 0 0 6px; }
.article-meta time { color: var(--slate); }

/* prose */
.article h2 { font-size: clamp(1.4rem, 2.6vw, 1.85rem); margin: 2.1em 0 0.5em; letter-spacing: -0.02em; }
.article h3 { font-size: 1.16rem; margin: 1.5em 0 0.35em; color: var(--cloud); }
.article p { color: #c5d2e5; font-size: 1.07rem; line-height: 1.78; margin: 0 0 1.1em; }
.article strong { color: var(--cloud); font-weight: 700; }
.article a { color: var(--cyan); text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.article a:hover { color: #a9f0ff; }
.article ul { margin: 0 0 1.25em; padding-left: 1.3em; }
.article li { color: #c5d2e5; font-size: 1.05rem; line-height: 1.7; margin: 0.4em 0; }
.article li::marker { color: var(--cyan); }
.article hr { border: none; border-top: 1px solid var(--line); margin: 2.2em 0; }

/* markdown blockquotes = highlighted callouts (CTAs + the ROI formula) */
.article blockquote {
  margin: 1.8em 0; padding: 20px 24px; border-radius: 16px;
  background: linear-gradient(160deg, rgba(109, 231, 255, 0.09), rgba(227, 59, 255, 0.06));
  border: 1px solid rgba(109, 231, 255, 0.22);
}
.article blockquote p { margin: 0; color: var(--cloud); font-size: 1.07rem; line-height: 1.6; }
.article blockquote p + p { margin-top: 0.5em; }
.article blockquote a { color: var(--cyan); font-weight: 700; text-decoration: none; }
.article blockquote strong { color: #ffffff; }

/* trailing italic disclaimer */
.article p em:only-child { color: var(--slate-dim); font-size: 0.86rem; line-height: 1.55; font-style: italic; display: block; }

/* tables */
.article table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 0.95rem; }
.article th, .article td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.article thead th { color: var(--cloud); font-weight: 700; border-bottom: 1px solid rgba(109, 231, 255, 0.3); }
.article tbody td { color: var(--slate); }
.article tbody td:first-child { color: #c5d2e5; font-weight: 600; }

/* more from the blog */
.article-more { margin-top: 2.6em; padding-top: 1.6em; border-top: 1px solid var(--line); }
.article-more h2 { font-size: 1.1rem; margin: 0 0 0.7em; letter-spacing: -0.01em; }
.article-more ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.article-more a { color: var(--cyan); text-decoration: none; font-weight: 600; }
.article-more a:hover { color: #a9f0ff; }

/* ---- blog index ---- */
.blog-hero { position: relative; padding: clamp(44px, 8vw, 92px) 0 clamp(18px, 3vw, 36px); }
.blog-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.06; letter-spacing: -0.03em; max-width: 20ch;
  background: linear-gradient(180deg, #ffffff 0%, #cfe0f4 65%, #f3d9ff 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.blog-hero-sub { margin-top: 18px; color: var(--slate); font-size: clamp(1.02rem, 1.6vw, 1.16rem); max-width: 62ch; }
.post-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; padding-bottom: clamp(56px, 8vw, 100px); }
.post-card {
  display: flex; flex-direction: column; gap: 10px; padding: 26px; border-radius: var(--radius);
  background: var(--surface-2); border: 1px solid var(--line); color: inherit; text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.post-card:hover { transform: translateY(-3px); border-color: rgba(109, 231, 255, 0.4); background: rgba(255, 255, 255, 0.05); }
.post-card h2 { font-size: 1.3rem; line-height: 1.22; color: var(--cloud); letter-spacing: -0.02em; }
.post-card p { color: var(--slate); font-size: 0.98rem; line-height: 1.55; flex: 1; margin: 0; }
.post-card-meta { color: var(--slate-dim); font-size: 0.82rem; font-weight: 700; }

@media (max-width: 720px) {
  .post-grid { grid-template-columns: 1fr; }
}