/* ============================================================
   ProductTrio — Blog stylesheet
   Built on the ProductTrio design system (see DESIGN.md).
   Self-contained: only depends on the Manrope web font.
   ============================================================ */

:root {
  --canvas: #fdfaf0;
  --surface: #ffffff;
  --surface-pearl: #f9f9f9;
  --surface-mint: #e9f2e8;
  --tint-indigo: rgba(77, 83, 196, 0.08);
  --ink: #1d1d1d;
  --ink-muted: #3b4c5b;
  --ink-soft: #546681;
  --ink-on-dark: #f9f9f9;
  --primary: #4d53c4;
  --primary-hover: #343af0;
  --violet: #a599d9;
  --gold: #dcb958;
  --success: #2dca73;
  --dark: #1d1d1d;
  --border: rgba(0, 0, 0, 0.10);
  --shadow-card: 1px 1px 9px rgba(44, 62, 80, 0.10);
  --shadow-ambient: 14px 14px 200px rgba(0, 22, 50, 0.06);
  --shadow-hover: 0 20px 50px -20px rgba(29, 29, 29, 0.45);
  --radius-card: 20px;
  --radius-pill: 50px;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --maxw: 1240px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Manrope', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--canvas);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.3;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }
img { max-width: 100%; height: auto; }

.wrap { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section { padding: 5vh 5vw; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 16px; font-weight: 500; line-height: 1;
  border-radius: 45px; padding: 15px 32px;
  cursor: pointer; border: 1px solid transparent;
  transition: all 200ms var(--ease);
}
.btn-primary { background: var(--primary); color: var(--surface-pearl); }
.btn-primary:hover { background: var(--primary-hover); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-hover); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--ink); border-radius: var(--radius-pill); padding: 10px 22px; }
.btn-outline:hover { background: var(--primary); color: var(--surface-pearl); }
.btn-ghost { background: transparent; color: var(--primary); padding: 0; border-radius: 0; }
.btn-ghost:hover { gap: 14px; }

/* Webflow nav is position:absolute on the main site (overlays the hero). Override
   to sticky so it sits in flow and stays pinned on blog pages. */
#navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--canvas);
  border-bottom: 1px solid rgba(0, 0, 0, 0.10);
  backdrop-filter: saturate(180%) blur(10px);
}

/* Webflow footer has no margin-top; add breathing room above it on blog pages. */
#footer {
  margin-top: 64px;
}

/* ---------- Nav (legacy — kept for reference) ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(253, 250, 240, 0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 5vw; max-width: var(--maxw); margin: 0 auto;
}
.nav-logo img { width: 170px; height: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a.nav-link { color: var(--ink); font-weight: 500; font-size: 16px; }
.nav-links a.nav-link:hover { color: var(--primary); }
.nav-burger { display: none; background: none; border: 0; cursor: pointer; }

@media (max-width: 860px) {
  .nav-links a.nav-link { display: none; }
}

/* ---------- Blog index ---------- */
.blog-hero { padding: 64px 5vw 24px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 12px; font-weight: 600;
  letter-spacing: 2px; text-transform: uppercase; color: var(--primary);
  margin-bottom: 16px;
}
.blog-hero h1 {
  font-size: clamp(34px, 5vw, 50px); font-weight: 600; line-height: 1.05;
  letter-spacing: -0.5px; margin: 0 auto 18px; max-width: 760px; color: var(--ink);
}
.blog-hero p.lead {
  font-size: 20px; font-weight: 500; line-height: 1.4; color: var(--ink-muted);
  max-width: 620px; margin: 0 auto;
}

.post-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 28px; padding: 40px 5vw 24px; max-width: var(--maxw); margin: 0 auto;
}
.post-card {
  display: flex; flex-direction: column;
  background: var(--surface); border-radius: var(--radius-card);
  box-shadow: var(--shadow-card); overflow: hidden;
  transition: transform 300ms var(--ease), box-shadow 300ms var(--ease);
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.post-card.featured { grid-column: 1 / -1; flex-direction: row; }
.post-card.featured .pc-thumb { width: 42%; min-height: 280px; }
.post-card.featured .pc-body { flex: 1; }
@media (max-width: 760px) { .post-card.featured { flex-direction: column; } .post-card.featured .pc-thumb { width: 100%; } }

.pc-thumb {
  min-height: 180px; display: flex; align-items: flex-end; padding: 18px;
  background: var(--surface-mint); position: relative; overflow: hidden;
}
.pc-thumb img { position: absolute; inset: 24px; width: calc(100% - 48px); height: calc(100% - 48px); object-fit: contain; }
.pc-thumb.indigo { background: linear-gradient(159deg, var(--primary), #6b71e0); }
.pc-thumb.dark { background: radial-gradient(circle at 0% 0%, var(--dark) 36%, var(--primary)); }
.pc-thumb.violet { background: linear-gradient(159deg, var(--violet), #c3b8ef); }
.pc-thumb.gold { background: linear-gradient(159deg, var(--gold), #ecd58c); }
.pc-thumb.mint { background: var(--surface-mint); }
.pc-tag {
  font-size: 12px; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  padding: 6px 12px; border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.85); color: var(--ink);
}
.pc-body { padding: 24px 26px 26px; display: flex; flex-direction: column; gap: 10px; }
.pc-body h2 { font-size: 24px; font-weight: 700; line-height: 1.2; margin: 0; color: var(--ink); }
.post-card.featured .pc-body h2 { font-size: 30px; }
.pc-body p { font-size: 16px; color: var(--ink-muted); margin: 0; }
.pc-meta { margin-top: auto; padding-top: 12px; font-size: 14px; color: var(--ink-soft); font-weight: 500; }
.pc-read { color: var(--primary); font-weight: 600; }

/* ---------- Article ---------- */
.article-head { padding: 56px 5vw 8px; max-width: 860px; margin: 0 auto; }
.crumbs { font-size: 14px; color: var(--ink-soft); margin-bottom: 18px; }
.crumbs a { color: var(--ink-soft); font-weight: 500; }
.crumbs a:hover { color: var(--primary); }
.article-head h1 {
  font-size: clamp(30px, 4.4vw, 44px); font-weight: 700; line-height: 1.12;
  letter-spacing: -0.5px; margin: 8px 0 18px; color: var(--ink);
}
.article-sub { font-size: 21px; font-weight: 500; line-height: 1.4; color: var(--ink-muted); margin: 0 0 24px; }
.article-meta {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  font-size: 14px; color: var(--ink-soft); font-weight: 500;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  padding: 16px 0; margin-bottom: 12px;
}
.article-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--ink-soft); }

.article {
  max-width: 860px; margin: 0 auto; padding: 16px 5vw 24px;
  font-size: 18px; line-height: 1.7; color: var(--ink);
}
.article > p { margin: 0 0 22px; }
.article > p:first-of-type { font-size: 20px; }
.article h2 {
  font-size: 28px; font-weight: 700; line-height: 1.25; letter-spacing: -0.3px;
  margin: 44px 0 14px; color: var(--ink);
}
.article h3 { font-size: 21px; font-weight: 700; margin: 30px 0 10px; color: var(--ink); }
.article strong { font-weight: 700; }
.article a { font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.article ul, .article ol { margin: 0 0 22px; padding-left: 22px; }
.article li { margin-bottom: 10px; }
.article blockquote {
  margin: 28px 0; padding: 22px 26px;
  background: var(--surface-mint); border-left: 4px solid var(--primary);
  border-radius: 0 14px 14px 0; font-size: 19px; font-style: normal; color: var(--ink);
}
.article blockquote p { margin: 0; }
.article blockquote cite { display: block; margin-top: 10px; font-size: 15px; font-style: normal; color: var(--ink-soft); }

.pullstat {
  display: flex; flex-wrap: wrap; gap: 20px; margin: 30px 0;
}
.pullstat .stat { flex: 1; min-width: 150px; background: var(--surface); border-radius: 16px; padding: 22px; box-shadow: var(--shadow-card); }
.pullstat .stat .n { font-size: 38px; font-weight: 700; color: var(--primary); line-height: 1; }
.pullstat .stat .l { font-size: 15px; color: var(--ink-muted); margin-top: 8px; }

.callout {
  margin: 30px 0; padding: 24px 26px; border-radius: 16px;
  background: var(--tint-indigo); border: 1px solid rgba(77,83,196,0.18);
  font-size: 17px;
}
.callout strong { color: var(--primary); }

.author-card {
  display: flex; gap: 16px; align-items: center; max-width: 860px;
  margin: 40px auto 0; padding: 20px 5vw; border-top: 1px solid var(--border);
}
.author-card img { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; flex: none; }
.author-card .a-name { font-weight: 700; }
.author-card .a-bio { font-size: 15px; color: var(--ink-muted); }

/* ---------- CTA band ---------- */
.cta-band {
  margin: 48px 5vw 0; border-radius: 28px; max-width: var(--maxw);
  margin-left: auto; margin-right: auto;
  background: radial-gradient(circle at 0% 0%, var(--dark) 36%, var(--primary));
  color: var(--ink-on-dark); padding: 56px 7vw; text-align: center;
}
.cta-band h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 700; line-height: 1.1; letter-spacing: -0.5px; margin: 0 auto 14px; max-width: 680px; color: #fff; }
.cta-band p { font-size: 18px; color: rgba(255,255,255,0.82); max-width: 560px; margin: 0 auto 28px; }
.cta-band .friction { margin-top: 16px; font-size: 14px; color: rgba(255,255,255,0.6); }
.cta-band .btn-primary { background: #fff; color: var(--primary); }
.cta-band .btn-primary:hover { background: var(--surface-mint); color: var(--primary); }

/* ---------- Related ---------- */
.related { padding: 48px 5vw; max-width: var(--maxw); margin: 0 auto; }
.related h3 { font-size: 24px; font-weight: 700; margin: 0 0 20px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: var(--surface-pearl); margin-top: 64px; padding: 56px 5vw 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; max-width: var(--maxw); margin: 0 auto; }
.footer-grid h4 { font-size: 14px; letter-spacing: 1px; text-transform: uppercase; color: rgba(255,255,255,0.55); margin: 0 0 14px; font-weight: 600; }
.footer-grid a { display: block; color: rgba(255,255,255,0.82); margin-bottom: 10px; font-weight: 500; font-size: 15px; }
.footer-grid a:hover { color: #fff; }
.footer-grid p { color: rgba(255,255,255,0.7); font-size: 15px; line-height: 1.5; max-width: 360px; }
.footer-logo { width: 168px; margin-bottom: 16px; }
.footer-legal { max-width: var(--maxw); margin: 36px auto 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; flex-wrap: wrap; gap: 18px; font-size: 13px; color: rgba(255,255,255,0.5); }
.footer-legal a { color: rgba(255,255,255,0.5); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- Reading progress ---------- */
.progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: var(--primary); z-index: 60; transition: width 80ms linear; }