/* Pep Trust — shared blog styles. Extends the landing design system.
   One stylesheet for the blog index and every post, so posts stay
   consistent and new ones only need their own HTML body. */
:root {
  --bg: #050D18; --surface: #0A1726; --surface2: #0F1F33; --line: #1B3450;
  --ink: #E8F4FC; --ink2: #8FABC4; --ink3: #557396;
  --accent: #2BE4FF; --accent-ink: #04131E; --accent-dim: rgba(43,228,255,0.12);
  --teal: #46D6C4; --lime: #C0FF4D; --red: #FF5468; --amber: #FFC247;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, sans-serif; line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; }
.wrap { max-width: 940px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
.mono { font-family: 'IBM Plex Mono', monospace; letter-spacing: 0.12em; text-transform: uppercase; font-size: 11px; color: var(--ink3); }
h1, h2, h3, h4 { font-family: 'Space Grotesk', sans-serif; color: var(--ink); line-height: 1.2; margin: 0; }

/* Header / footer (shared with landing) */
header.site { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: rgba(5,13,24,0.85); backdrop-filter: blur(8px); z-index: 10; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 18px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 18px; color: var(--ink); }
.brand img { width: 26px; height: 26px; }
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a.navlink { color: var(--ink2); font-size: 15px; font-weight: 500; }
.nav-links a.navlink:hover { color: var(--ink); text-decoration: none; }
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  font-weight: 600; padding: 12px 22px; border-radius: 10px; font-size: 15px;
  transition: transform .08s ease, box-shadow .15s ease;
  box-shadow: 0 0 24px -6px rgba(43,228,255,0.5);
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); box-shadow: none; padding: 11px 20px; }

footer { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--ink3); font-size: 13px; margin-top: 64px; }
footer .row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; align-items: center; }
footer a { color: var(--ink2); }
.ruo { font-family: 'IBM Plex Mono', monospace; letter-spacing: 0.12em; text-transform: uppercase; font-size: 11px; color: var(--ink3); }

/* Breadcrumb */
.crumb { font-size: 13px; color: var(--ink3); margin: 28px 0 0; }
.crumb a { color: var(--ink2); }

/* ---- Blog index ---- */
.blog-hero { padding: 44px 0 8px; }
.blog-hero h1 { font-size: clamp(30px, 5vw, 44px); letter-spacing: -0.5px; }
.blog-hero p { color: var(--ink2); font-size: clamp(16px, 2.2vw, 19px); max-width: 640px; margin: 14px 0 0; }

.post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; margin: 40px 0 8px; }
.post-card {
  display: flex; flex-direction: column; background: var(--surface);
  border: 1px solid var(--line); border-radius: 16px; padding: 24px;
  transition: transform .1s ease, border-color .15s ease;
}
.post-card:hover { transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.post-card .kicker { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.post-card h2 { font-size: 21px; margin: 12px 0 10px; line-height: 1.25; }
.post-card p { color: var(--ink2); font-size: 14.5px; margin: 0; flex: 1; }
.post-card .meta { color: var(--ink3); font-size: 12.5px; margin-top: 18px; }

/* ---- Article ---- */
article.post { padding-top: 10px; }
.post-head { margin: 18px 0 6px; }
.post-head .kicker { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); }
.post-head h1 { font-size: clamp(28px, 5vw, 42px); letter-spacing: -0.5px; margin: 14px 0 0; }
.post-head .dek { color: var(--ink2); font-size: clamp(16px, 2.4vw, 20px); margin: 16px 0 0; }
.post-head .meta { color: var(--ink3); font-size: 13px; margin: 20px 0 0; display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.post-head .meta .dot { color: var(--line); }

.post-body { margin-top: 8px; font-size: 17px; }
.post-body > p { color: var(--ink); margin: 20px 0; }
.post-body h2 { font-size: clamp(22px, 3.4vw, 28px); margin: 44px 0 4px; padding-top: 8px; letter-spacing: -0.3px; }
.post-body h3 { font-size: 20px; margin: 30px 0 4px; color: var(--ink); }
.post-body h4 { font-size: 16px; margin: 22px 0 2px; color: var(--teal); font-family: 'IBM Plex Mono', monospace; letter-spacing: 0.04em; }
.post-body ul, .post-body ol { color: var(--ink); margin: 16px 0; padding-left: 22px; }
.post-body li { margin: 8px 0; }
.post-body li::marker { color: var(--accent); }
.post-body strong { color: var(--ink); }
.post-body a { text-decoration: underline; text-underline-offset: 2px; }
.post-body hr { border: none; border-top: 1px solid var(--line); margin: 40px 0; }
.post-body blockquote {
  margin: 24px 0; padding: 4px 20px; border-left: 3px solid var(--accent);
  color: var(--ink2); font-style: italic;
}

/* Callout box */
.callout {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px 22px; margin: 26px 0;
}
.callout.warn { border-color: rgba(255,84,104,0.4); }
.callout.tip { border-color: rgba(43,228,255,0.35); }
.callout .label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 6px; }
.callout.warn .label { color: var(--red); }
.callout p { margin: 0; color: var(--ink2); font-size: 15px; }

/* Tables */
.post-body .table-scroll { overflow-x: auto; margin: 24px 0; }
.post-body table { border-collapse: collapse; width: 100%; font-size: 15px; min-width: 460px; }
.post-body th, .post-body td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
.post-body th { color: var(--ink); font-family: 'Space Grotesk', sans-serif; font-weight: 600; background: var(--surface); }
.post-body td { color: var(--ink2); }

/* FAQ block inside an article (pairs with FAQPage schema) */
.faq-block h3 { font-size: 18px; margin: 26px 0 6px; }
.faq-block p { color: var(--ink2); margin: 0; font-size: 15.5px; }

/* Table of contents */
.toc { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 18px 22px; margin: 28px 0; }
.toc .label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink3); }
.toc ol { margin: 10px 0 0; padding-left: 20px; color: var(--ink2); font-size: 15px; }
.toc li { margin: 6px 0; }

/* Inline CTA band */
.cta-inline {
  text-align: center; background: linear-gradient(180deg, var(--surface2), var(--surface));
  border: 1px solid var(--line); border-radius: 16px; padding: 32px 24px; margin: 44px 0;
}
.cta-inline h3 { font-size: clamp(20px, 3vw, 26px); }
.cta-inline p { color: var(--ink2); margin: 10px auto 20px; max-width: 520px; font-size: 15px; }

/* Related posts */
.related { margin-top: 56px; border-top: 1px solid var(--line); padding-top: 32px; }
.related h2 { font-size: 22px; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.related-grid a { background: var(--surface); border: 1px solid var(--line); border-radius: 12px; padding: 18px; color: var(--ink); }
.related-grid a:hover { border-color: var(--accent); text-decoration: none; }
.related-grid .kicker { font-family: 'IBM Plex Mono', monospace; font-size: 10.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.related-grid h3 { font-size: 16px; margin-top: 8px; line-height: 1.3; }

.disclaimer { color: var(--ink3); font-size: 13px; border-top: 1px solid var(--line); margin-top: 44px; padding-top: 20px; }

@media (max-width: 560px) {
  .nav-links { gap: 12px; }
  .nav-links a.navlink { display: none; }
}