/* ==========================================================
   HAKOBY AI  ::  blog styles  ::  gold on near-black
   Shared by /blog and every /blog/<post>. Mirrors the
   home page brand (Geist, champagne gold #C9A84C on #0A0A0A).
   ========================================================== */
:root {
  color-scheme: dark;
  --gold: #C9A84C;
  --gold-light: #F0D78C;
  --gold-dim: rgba(201, 168, 76, 0.10);
  --black: #0A0A0A;
  --dark: #111111;
  --card: #1A1A1A;
  --border: rgba(255, 255, 255, 0.10);
  --text: #FFFFFF;
  --text-2: #A1A1AA;
  --font-h: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-b: 'Geist', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-m: 'Geist Mono', ui-monospace, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --wrap: 1120px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background: var(--black);
  color: var(--text);
  font-family: var(--font-b);
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: var(--gold); text-decoration: none; transition: color .2s var(--ease), opacity .2s var(--ease); }
a:hover { color: var(--gold-light); }

img { max-width: 100%; height: auto; display: block; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--gold); color: #000; padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: 100%; max-width: var(--wrap); margin-inline: auto;
  padding: 14px 24px; display: flex; align-items: center; gap: 24px;
}
.logo { font-family: var(--font-h); font-weight: 800; letter-spacing: -0.02em; font-size: 20px; color: var(--text); }
.logo span { color: var(--gold); }
.nav-links { display: flex; gap: 26px; list-style: none; margin-left: auto; }
.nav-links a { color: var(--text-2); font-size: 15px; font-weight: 500; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-h); font-weight: 600; font-size: 15px; line-height: 1;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
  white-space: nowrap;
}
.btn-gold { background: var(--gold); color: #0A0A0A; box-shadow: 0 8px 30px rgba(201, 168, 76, .22); }
.btn-gold:hover { color: #0A0A0A; transform: translateY(-2px); box-shadow: 0 14px 40px rgba(201, 168, 76, .34); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--gold); }
.nav .btn { padding: 10px 18px; }

/* ---------- blog index ---------- */
.blog-hero { padding: 88px 0 40px; text-align: center; border-bottom: 1px solid var(--border); }
.eyebrow {
  display: inline-block; font-family: var(--font-m); font-size: 12px; letter-spacing: .18em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 18px;
}
.blog-hero h1 {
  font-family: var(--font-h); font-weight: 800; letter-spacing: -0.03em;
  font-size: clamp(34px, 6vw, 58px); line-height: 1.04;
}
.blog-hero h1 .gold { color: var(--gold); }
.blog-hero p { color: var(--text-2); max-width: 620px; margin: 20px auto 0; font-size: 18px; }

.post-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  padding: 56px 0 40px;
}
.post-card {
  display: flex; flex-direction: column; gap: 12px;
  background: var(--dark); border: 1px solid var(--border); border-radius: 16px;
  padding: 26px 24px; transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
  height: 100%;
}
.post-card:hover { transform: translateY(-4px); border-color: rgba(201, 168, 76, .45); background: #141414; }
.post-card .post-cat {
  font-family: var(--font-m); font-size: 11px; letter-spacing: .14em; text-transform: uppercase;
  color: var(--gold);
}
.post-card h2 { font-family: var(--font-h); font-weight: 700; letter-spacing: -0.01em; font-size: 20px; line-height: 1.25; color: var(--text); }
.post-card p { color: var(--text-2); font-size: 15px; flex: 1; }
.post-card .read { color: var(--gold); font-weight: 600; font-size: 14px; margin-top: 4px; }
.post-card:hover .read { color: var(--gold-light); }

.blog-groups { padding-bottom: 20px; }
.blog-group-title {
  font-family: var(--font-h); font-weight: 700; font-size: 15px; letter-spacing: .02em;
  color: var(--text-2); text-transform: uppercase; letter-spacing: .12em;
  padding-top: 26px; border-top: 1px solid var(--border);
}

/* ---------- article ---------- */
.post-head { padding: 72px 0 24px; max-width: 760px; margin-inline: auto; }
.post-back { font-size: 14px; font-weight: 600; color: var(--text-2); }
.post-back:hover { color: var(--gold); }
.post-cat {
  display: inline-block; font-family: var(--font-m); font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--gold); margin: 22px 0 12px;
}
.post-head h1 {
  font-family: var(--font-h); font-weight: 800; letter-spacing: -0.03em;
  font-size: clamp(30px, 5vw, 46px); line-height: 1.08;
}
.post-meta { color: var(--text-2); font-size: 14px; margin-top: 18px; font-family: var(--font-m); }

.post-body { max-width: 720px; margin: 8px auto 0; padding-bottom: 8px; }
.post-body > * + * { margin-top: 22px; }
.post-body p { color: #D4D4D8; }
.post-body h2 {
  font-family: var(--font-h); font-weight: 700; letter-spacing: -0.02em;
  font-size: clamp(23px, 3.4vw, 30px); line-height: 1.2; color: var(--text);
  margin-top: 46px;
}
.post-body h3 {
  font-family: var(--font-h); font-weight: 600; font-size: 20px; color: var(--text); margin-top: 32px;
}
.post-body ul, .post-body ol { padding-left: 22px; color: #D4D4D8; }
.post-body li { margin-top: 10px; }
.post-body li::marker { color: var(--gold); }
.post-body strong { color: var(--text); font-weight: 600; }
.post-body a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(201,168,76,.4); }
.post-body blockquote {
  border-left: 3px solid var(--gold); padding: 6px 0 6px 22px; margin-left: 0;
  color: var(--text); font-size: 20px; font-weight: 500; line-height: 1.5;
}
.post-body .key-takeaway {
  background: var(--gold-dim); border: 1px solid rgba(201,168,76,.3); border-radius: 14px;
  padding: 22px 24px;
}
.post-body .key-takeaway p { color: var(--text); margin: 0; }
.post-body .key-takeaway strong { color: var(--gold); }

/* ---------- in-article CTA ---------- */
.post-cta {
  max-width: 720px; margin: 56px auto 0; text-align: center;
  background: linear-gradient(180deg, #141414, #0d0d0d);
  border: 1px solid var(--border); border-radius: 20px; padding: 44px 28px;
}
.post-cta h2 { font-family: var(--font-h); font-weight: 800; letter-spacing: -0.02em; font-size: clamp(24px, 4vw, 32px); }
.post-cta p { color: var(--text-2); max-width: 480px; margin: 14px auto 24px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--border); padding: 56px 0 32px; margin-top: 72px; background: var(--black); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.foot-tag { color: var(--text-2); font-size: 15px; margin-top: 14px; max-width: 320px; }
.foot-h { font-family: var(--font-m); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-2); margin-bottom: 14px; }
.foot-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.foot-links a { color: var(--text); font-size: 15px; }
.foot-links a:hover { color: var(--gold); }
.foot-base {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  border-top: 1px solid var(--border); margin-top: 40px; padding-top: 24px;
  color: var(--text-2); font-size: 14px;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .post-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .blog-hero { padding: 60px 0 32px; }
  .post-head { padding-top: 52px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* ---- related posts (internal-link cluster) ---- */
.related-posts{border-top:1px solid rgba(255,255,255,.1);margin-top:64px;padding:56px 0}
.related-posts .related-title{font-family:'Geist Mono',monospace;font-size:.74rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:#C9A84C;margin:0 0 22px}
.related-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.related-list a{display:block;font-family:'Geist',sans-serif;font-weight:600;font-size:1.1rem;line-height:1.35;color:#fff;text-decoration:none;transition:color .2s ease}
.related-list a:hover{color:#C9A84C}
@media(min-width:760px){.related-list{grid-template-columns:repeat(3,1fr);gap:24px}}