/* ──────────────────────────────────────────────
   PROOF — Insights / blog styles
   Shares the home editorial system (Fraunces display +
   IBM Plex Mono labels + Manrope body), tuned for
   long-form readability. Kept separate from the
   conversion-critical index.html (no inline edits there).
   ────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#181818;
  --bg2:#202020;
  --bg3:#2C2C2C;
  --w:#F4F1EC;
  --w-dim:rgba(244,241,236,.82);
  --g:#A3A3A3;
  --g2:#6E6E6E;
  --line:rgba(247,243,236,.12);
  --line-strong:rgba(247,243,236,.2);
  --accent:#D6FF3F;
  --accent-soft:rgba(214,255,63,.10);
  --ink:#111107;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --fn:'Fraunces',Georgia,serif;
  --fm:'IBM Plex Mono',ui-monospace,monospace;
  --fb:'Manrope',sans-serif;
  --nav-h:60px;
}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px)}
body{
  font-size:16px;
  background:var(--bg);
  color:var(--w);
  font-family:var(--fb);font-weight:300;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  font-optical-sizing:auto;
  text-rendering:optimizeLegibility;
  line-height:1.65;
}
::selection{background:rgba(214,255,63,.26);color:var(--w)}
a{color:inherit}

/* ── NAV ── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:200;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(20px,5vw,52px);height:var(--nav-h);
  background:rgba(24,24,24,.86);
  backdrop-filter:blur(20px) saturate(1.2);
  -webkit-backdrop-filter:blur(20px) saturate(1.2);
  border-bottom:1px solid var(--line);
}
.logo{
  font-family:var(--fn);font-weight:500;font-size:clamp(20px,2.4vw,26px);
  letter-spacing:.03em;color:var(--w);text-decoration:none;
  padding-left:13px;border-left:2px solid var(--accent);
}
.nav-r{display:flex;align-items:center;gap:clamp(18px,2.4vw,32px)}
.nav-r a{
  font-family:var(--fm);font-size:12px;font-weight:400;
  letter-spacing:.04em;text-transform:uppercase;color:var(--g);
  text-decoration:none;transition:color .3s;
}
.nav-r a:hover{color:var(--w)}
.nav-r a.is-current{color:var(--w)}
.nav-cta{
  color:var(--w)!important;border:1px solid var(--line-strong);
  padding:9px 18px;border-radius:1px;
}
.nav-cta:hover{background:rgba(243,238,230,.06);border-color:rgba(243,238,230,.35)}
@media(max-width:680px){.nav-r .nav-link-hide{display:none}}

/* ── LAYOUT ── */
.wrap{max-width:752px;margin:0 auto;padding:0 24px}
main{padding-top:calc(var(--nav-h) + clamp(56px,9vw,104px));padding-bottom:96px}

/* ── BREADCRUMB ── */
.crumb{font-family:var(--fm);font-size:11.5px;font-weight:400;letter-spacing:.05em;text-transform:uppercase;color:var(--g2);margin-bottom:30px}
.crumb a{color:var(--g);text-decoration:none}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 8px;opacity:.6}

/* ── ARTICLE HEADER ── */
.post-kicker{font-family:var(--fm);font-size:11.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:20px;display:flex;align-items:center;gap:12px}
.post-kicker::before{content:'';width:26px;height:1px;background:var(--accent);opacity:.6}
h1.post-title{
  font-family:var(--fn);font-weight:360;
  font-size:clamp(38px,6vw,66px);line-height:1.02;letter-spacing:-.022em;
  text-wrap:balance;margin-bottom:26px;
  font-variation-settings:"opsz" 144;
}
.post-meta{font-family:var(--fm);font-size:12px;color:var(--g);letter-spacing:.02em;text-transform:uppercase;margin-bottom:8px}
.post-lead{font-size:clamp(18px,2.4vw,21px);line-height:1.55;color:var(--w-dim);font-weight:300;margin:26px 0 0;padding-top:30px;border-top:1px solid var(--line)}

/* ── PROSE ── */
.prose{margin-top:52px;font-size:17.5px;line-height:1.78;color:var(--w-dim)}
.prose h2{
  font-family:var(--fn);font-weight:380;color:var(--w);
  font-size:clamp(27px,3.6vw,36px);line-height:1.08;letter-spacing:-.018em;
  margin:62px 0 20px;
  font-variation-settings:"opsz" 144;
}
.prose h3{font-family:var(--fn);font-weight:500;color:var(--w);font-size:21px;letter-spacing:-.01em;margin:38px 0 14px;font-variation-settings:"opsz" 40}
.prose p{margin:0 0 22px}
.prose a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:opacity .2s}
.prose a:hover{opacity:.78}
.prose strong{color:var(--w);font-weight:600}
.prose ul,.prose ol{margin:0 0 24px;padding-left:1.25em}
.prose li{margin:0 0 10px;padding-left:6px}
.prose li::marker{color:var(--accent)}
.prose blockquote{
  margin:32px 0;padding:6px 0 6px 26px;border-left:2px solid var(--accent);
  font-family:var(--fn);font-weight:360;font-size:21px;line-height:1.5;color:var(--w);
  letter-spacing:-.005em;font-variation-settings:"opsz" 40;
}
.prose hr{border:none;border-top:1px solid var(--line);margin:48px 0}
.prose figure{margin:36px 0}
.prose img{width:100%;height:auto;border-radius:2px;display:block}
.prose figcaption{font-family:var(--fm);font-size:12px;color:var(--g2);margin-top:10px;text-align:center;text-transform:uppercase;letter-spacing:.04em}

/* callout */
.callout{background:var(--accent-soft);border:1px solid rgba(214,255,63,.22);border-radius:3px;padding:22px 24px;margin:32px 0;font-size:16px;line-height:1.6;color:var(--w-dim)}
.callout strong{color:var(--accent)}

/* ── FAQ ── */
.faq{margin-top:56px;border-top:1px solid var(--line);padding-top:40px}
.faq h2{font-family:var(--fn);font-weight:380;font-size:clamp(26px,3.6vw,34px);letter-spacing:-.018em;margin-bottom:24px;font-variation-settings:"opsz" 144}
.faq-q{font-family:var(--fn);font-weight:500;font-size:19px;letter-spacing:-.008em;color:var(--w);margin:26px 0 8px;font-variation-settings:"opsz" 40}
.faq-a{font-size:16.5px;line-height:1.72;color:var(--w-dim)}

/* ── END CTA ── */
.post-cta{
  margin-top:64px;padding:44px clamp(24px,5vw,44px);
  border:1px solid var(--line-strong);border-radius:3px;
  text-align:center;
}
.post-cta .pc-k{font-family:var(--fm);font-size:11.5px;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:16px}
.post-cta h2{font-family:var(--fn);font-weight:360;font-size:clamp(28px,4.4vw,42px);line-height:1.02;letter-spacing:-.022em;margin-bottom:16px;font-variation-settings:"opsz" 144}
.post-cta p{color:var(--w-dim);font-size:16.5px;line-height:1.6;max-width:46ch;margin:0 auto 28px}
.btn-w{
  font-family:var(--fm);font-weight:500;font-size:12px;letter-spacing:.08em;text-transform:uppercase;
  background:var(--accent);color:var(--ink);padding:16px 38px;text-decoration:none;
  display:inline-block;border-radius:1px;transition:letter-spacing .35s var(--ease-out),transform .25s,box-shadow .3s;
}
.btn-w:hover{letter-spacing:.12em;transform:translateY(-2px);box-shadow:0 14px 34px -14px rgba(214,255,63,.5)}

/* ── BLOG INDEX ── */
.idx-head{margin-bottom:clamp(40px,7vw,72px)}
.idx-head h1{font-family:var(--fn);font-weight:360;font-size:clamp(42px,7.5vw,82px);line-height:1.0;letter-spacing:-.024em;margin:16px 0 0;text-wrap:balance;font-variation-settings:"opsz" 144}
.idx-sub{font-size:clamp(17px,2.2vw,20px);color:var(--w-dim);max-width:54ch;margin-top:24px;line-height:1.55}
.post-list{display:flex;flex-direction:column;gap:0}
.post-card{
  display:block;text-decoration:none;color:inherit;
  padding:34px 0;border-top:1px solid var(--line);
  transition:padding-left .3s var(--ease-out);
}
.post-list .post-card:last-child{border-bottom:1px solid var(--line)}
.post-card:hover{padding-left:10px}
.pc-tag{font-family:var(--fm);font-size:11.5px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.pc-title{font-family:var(--fn);font-weight:400;font-size:clamp(26px,3.4vw,34px);line-height:1.06;letter-spacing:-.018em;color:var(--w);margin:14px 0 12px;transition:color .3s;font-variation-settings:"opsz" 144}
.post-card:hover .pc-title{color:var(--accent)}
.pc-excerpt{font-size:16px;line-height:1.6;color:var(--g);max-width:62ch}
.pc-meta{font-family:var(--fm);font-size:12px;color:var(--g2);margin-top:16px;letter-spacing:.02em;text-transform:uppercase}

/* ── FOOTER ── */
.ft{border-top:1px solid var(--line);margin-top:88px;padding:40px clamp(20px,5vw,52px);display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.ft-logo{font-family:var(--fn);font-weight:500;font-size:20px;letter-spacing:.03em;color:var(--w)}
.ft-sub{font-family:var(--fm);font-size:11px;color:var(--g2);display:block;margin-top:6px;letter-spacing:.04em;text-transform:uppercase}
.ft-links{display:flex;gap:22px;flex-wrap:wrap}
.ft-links a{font-family:var(--fm);font-size:11px;color:var(--g);text-decoration:none;letter-spacing:.04em;text-transform:uppercase;transition:color .25s}
.ft-links a:hover{color:var(--accent)}
@media(max-width:560px){.ft{flex-direction:column;text-align:center}.ft-links{justify-content:center}}