/* ============================================================
   christianguerrero.net, shared styles for article pages
   Mirrors the design system in index.html so insight articles
   are visually consistent and load fast (single cached file).
   ============================================================ */
:root {
  --ink: #070b1a; --ink-2: #0b1126; --panel: #0f1838; --panel-2: #131e44;
  --line: rgba(140,165,230,0.13); --line-strong: rgba(140,165,230,0.26);
  --text: #eaf0ff; --muted: #9fb0d8; --faint: #6f80aa;
  --teal: #57e3c4; --teal-deep: #1fae8e; --teal-soft: rgba(87,227,196,0.12);
  --gold: #e7c984;
  --display: "Fraunces", Georgia, serif;
  --body: "IBM Plex Sans", -apple-system, sans-serif;
  --maxw: 1160px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--body); color: var(--text); background: var(--ink); line-height: 1.62; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
body::before { content:""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(900px 620px at 80% -10%, rgba(87,227,196,0.10), transparent 60%),
    radial-gradient(820px 720px at -5% 16%, rgba(64,98,200,0.14), transparent 55%); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.skip { position: absolute; left: -999px; top: 0; background: var(--teal); color: var(--ink); padding: 10px 16px; border-radius: 8px; z-index: 999; font-weight: 600; }
.skip:focus { left: 16px; top: 16px; }

/* Header (shared with home) */
header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); background: rgba(7,11,26,.74); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 70px; }
.brand { display: flex; align-items: center; gap: 12px; font-weight: 600; letter-spacing: .2px; }
.brand .mono { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--teal), var(--teal-deep)); color: var(--ink);
  font-family: var(--display); font-weight: 600; font-size: 15px; box-shadow: 0 6px 24px rgba(87,227,196,.25); }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a.lnk { color: var(--muted); font-size: 14.5px; transition: color .2s; padding: 4px 0; }
.nav-links a.lnk:hover { color: var(--text); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: 14.5px; transition: transform .15s ease, box-shadow .2s ease, background .2s, border-color .2s, color .2s; white-space: nowrap; min-height: 44px; cursor: pointer; }
.btn-primary { position: relative; overflow: hidden; background: linear-gradient(150deg, var(--teal), var(--teal-deep)); color: var(--ink); box-shadow: 0 10px 30px rgba(87,227,196,.22); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(87,227,196,.34); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }

h1, h2, h3 { font-family: var(--display); font-weight: 500; letter-spacing: -.4px; line-height: 1.16; }
.lead { color: var(--muted); font-size: clamp(16px, 2vw, 18px); }

/* ---------- Article layout ---------- */
.article { padding: 40px 0 90px; position: relative; z-index: 1; }
.article .wrap { max-width: 760px; }
.crumbs { font-size: 13px; color: var(--faint); margin: 14px 0 30px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--teal); }
.crumbs .sep { color: var(--line-strong); }
.kicker { font-size: 12px; letter-spacing: 1.6px; text-transform: uppercase; color: var(--teal); font-weight: 600; }
.article h1 { font-size: clamp(30px, 5vw, 46px); margin: 14px 0 20px; }
.article .lead { font-size: clamp(17px, 2.2vw, 20px); color: var(--muted); }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; color: var(--faint); font-size: 13.5px; margin: 22px 0 8px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.meta-row .av { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; background: linear-gradient(150deg, var(--teal), var(--teal-deep)); color: var(--ink); font-family: var(--display); font-weight: 600; font-size: 13px; }

.prose { margin-top: 34px; }
.prose h2 { font-size: clamp(22px, 3.2vw, 30px); margin: 46px 0 14px; }
.prose h3 { font-size: clamp(18px, 2.4vw, 22px); margin: 32px 0 10px; color: var(--text); }
.prose p { color: var(--muted); font-size: 16.5px; margin: 0 0 18px; }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--teal); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(87,227,196,.4); }
.prose a:hover { text-decoration-color: var(--teal); }
.prose ul, .prose ol { color: var(--muted); font-size: 16.5px; margin: 0 0 20px; padding-left: 4px; }
.prose ul { list-style: none; }
.prose ul li { padding-left: 26px; position: relative; margin-bottom: 11px; }
.prose ul li::before { content: "→"; position: absolute; left: 0; color: var(--teal); }
.prose ol { padding-left: 22px; }
.prose ol li { margin-bottom: 11px; padding-left: 6px; }
.prose ol li::marker { color: var(--teal); font-family: var(--display); }
.prose blockquote { margin: 26px 0; padding: 18px 24px; border-left: 3px solid var(--teal); background: var(--ink-2); border-radius: 0 12px 12px 0; color: var(--text); font-family: var(--display); font-size: 19px; }

/* Callout / key takeaway box */
.callout { background: linear-gradient(165deg, var(--panel), var(--ink-2)); border: 1px solid var(--line-strong); border-radius: 16px; padding: 24px 26px; margin: 30px 0; }
.callout h3 { margin: 0 0 12px; font-size: 16px; color: var(--teal); letter-spacing: .3px; }
.callout p:last-child, .callout ul:last-child { margin-bottom: 0; }

/* Stat strip inside articles */
.fig-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; margin: 30px 0; }
.fig-stats > div, .fig-stats .s { background: var(--ink-2); padding: 22px 18px; }
.fig-stats b, .fig-stats strong { font-family: var(--display); font-size: 26px; font-weight: 500; display: block; color: var(--teal); margin-bottom: 4px; }
.fig-stats span { color: var(--muted); font-size: 13px; }

/* Simple data table */
.tbl-wrap { overflow-x: auto; margin: 26px 0; border: 1px solid var(--line); border-radius: 14px; }
table.data { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 520px; }
table.data th, table.data td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--line); color: var(--muted); }
table.data thead th { color: var(--teal); font-weight: 600; background: var(--ink-2); }
table.data tbody tr:last-child td { border-bottom: none; }
table.data td strong { color: var(--text); }

/* Article footer CTA */
.article-cta { margin-top: 54px; padding: 34px; border: 1px solid var(--line-strong); border-radius: 20px; background: linear-gradient(150deg, var(--panel-2), var(--ink-2)); }
.article-cta h3 { font-size: 22px; margin: 0 0 10px; }
.article-cta p { color: var(--muted); font-size: 15px; margin: 0 0 20px; }
.article-cta .row { display: flex; gap: 12px; flex-wrap: wrap; }

.related { margin-top: 40px; }
.related h3 { font-size: 15px; letter-spacing: 1.4px; text-transform: uppercase; color: var(--faint); margin: 0 0 16px; }
.related ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.related a { color: var(--text); font-size: 15px; display: inline-flex; gap: 10px; }
.related a::before { content: "›"; color: var(--teal); }
.related a:hover { color: var(--teal); }

footer { border-top: 1px solid var(--line); padding: 44px 0; position: relative; z-index: 1; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 18px; align-items: center; color: var(--faint); font-size: 13.5px; }
.foot-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.foot a:hover { color: var(--teal); }

@media (max-width: 720px) {
  .nav-links { display: none; }
  .fig-stats { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}