/* SMMapprove /blog — accepted design v6 (founder-approved, design gate 9.5–9.6).
   Color discipline: blue = navigation/links ONLY; green = proof ONLY.
   Self-hosted Inter + Outfit (see fonts.css / outfit.css). RTL via logical properties. */
:root{
  --bg:#0f1115; --card:#171a21; --card2:#14171d; --line:#262b36;
  --text:#e8ebf0; --muted:#9aa3b2; --dim:#98a1b0; --lead:#c3cad6;
  --nav:#3b82f6; --nav-strong:#2563eb; --nav-hover:#1d4ed8;   /* blue = navigation/links ONLY */
  --proof:#22c55e; --proof-bg:#11331f; --proof-line:#1f6b3f; --proof-ink:#7ff0a8; /* green = proof ONLY */
  --ann:#5b3df5; --radius-lg:14px; --radius-sm:9px;
}
@font-face{font-family:'Inter Fallback';src:local('Segoe UI'),local('Roboto'),local('Arial');size-adjust:107%;ascent-override:90%;descent-override:22%;line-gap-override:0%}
@font-face{font-family:'Outfit Fallback';src:local('Segoe UI'),local('Roboto'),local('Arial');size-adjust:97%;ascent-override:96%;descent-override:24%;line-gap-override:0%}
*{box-sizing:border-box}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;background:var(--bg);color:var(--text);
  font-family:Inter,'Inter Fallback',system-ui,Segoe UI,Roboto,sans-serif;
  font-size:1.125rem;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:Outfit,'Outfit Fallback',system-ui,sans-serif;line-height:1.18}
article h1{letter-spacing:-.02em} article h2{letter-spacing:-.012em} .card h3,.pillar h2{letter-spacing:-.005em}
a{color:var(--nav);text-decoration:none} a:hover{text-decoration:underline}
:focus{outline:2px solid var(--nav);outline-offset:2px;border-radius:4px}
:focus:not(:focus-visible){outline:none}
:focus-visible{outline:2px solid var(--nav);outline-offset:2px;border-radius:4px}
.skip{position:absolute;inset-inline-start:-9999px;inset-block-start:0;background:var(--nav-strong);color:#fff;padding:8px 14px;border-radius:var(--radius-sm);z-index:20}
.skip:focus{inset-inline-start:12px;inset-block-start:12px}
.cta-arrow::after{content:"\00a0\2192"} [dir=rtl] .cta-arrow::after{content:"\00a0\2190"}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.progress{position:fixed;inset-block-start:0;inset-inline-start:0;block-size:3px;inline-size:100%;
  background:var(--nav);transform-origin:left center;transform:scaleX(0);z-index:9}
@media (prefers-reduced-motion:no-preference){@supports (animation-timeline:scroll()){.progress{animation:grow linear both;animation-timeline:scroll(root)}}}
@keyframes grow{to{transform:scaleX(1)}}
[dir=rtl] .progress{transform-origin:right center}
@media (prefers-reduced-motion:reduce){.progress{display:none}}
header{border-block-end:1px solid var(--line);position:sticky;inset-block-start:0;background:rgba(15,17,21,.96);z-index:5}
@supports (backdrop-filter:blur(6px)){header{background:rgba(15,17,21,.85);backdrop-filter:blur(6px)}}
@media (hover:none){header{backdrop-filter:none;background:rgba(15,17,21,.96)}}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:62px;flex-wrap:wrap}
/* Brand wordmark — SAME blue→purple gradient as the site landing logo (coherence:
   the mark must not change color across the landing↔blog transition). */
.logo{font-family:Outfit,sans-serif;font-weight:800;font-size:20px}
.logo a{background:linear-gradient(135deg,#38bdf8 0%,#a855f7 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#38bdf8}
.logo b{font-weight:800}
.logo a:hover{text-decoration:none}
.nav-links{display:flex;gap:22px;align-items:center;font-size:15px;flex-wrap:wrap}
.nav-links a{color:var(--muted)} .nav-links a.active{color:var(--text)}
.nav-links a.home{display:inline}
@media(max-width:560px){.nav-links a:not(.btn):not(.home){display:none}.nav-links a.home{display:inline}}
.btn{background:var(--nav-strong);color:#fff;padding:9px 16px;border-radius:var(--radius-sm);font-weight:600;font-size:14px}
.btn:hover{text-decoration:none;background:var(--nav-hover)}
.hero{padding:48px 0 22px}
.eyebrow{color:var(--nav);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
h1.big{font-size:clamp(2rem,5vw,3rem);margin:10px 0 12px}
.lead{color:var(--lead);font-size:1.15rem;max-width:64ch}
.pillar{display:flex;gap:18px;align-items:center;background:var(--card);
  border:1px solid var(--line);border-inline-start:4px solid var(--nav);border-radius:var(--radius-lg);padding:20px 22px;margin:24px 0 30px}
.pillar .tag{background:#1d2840;color:#9fc0ff;font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;white-space:nowrap}
.pillar h2{margin:0 0 4px;font-size:20px} .pillar p{margin:0;color:var(--muted);font-size:15px}
.sec-title{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;font-weight:700;margin:6px 0 12px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-block-end:30px;grid-auto-flow:dense}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px;transition:.15s}
.card:hover{border-color:#3a4a63;transform:translateY(-2px);box-shadow:0 6px 20px -8px rgba(0,0,0,.6)}
.card .kicker{font-size:11px;color:var(--muted);font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-block-end:8px}
.card h3{margin:0 0 6px;font-size:16px;line-height:1.3}
.card h3 a{color:var(--text)} .card h3 a:hover{text-decoration:none} .card h3 a::after{content:"";position:absolute;inset:0}
.card p{margin:0;color:var(--muted);font-size:13px}
.card .meta{margin-block-start:12px;color:var(--dim);font-size:12px}
.card.feature{grid-column:span 2} .card.feature h3{font-size:19px}
@media(max-width:820px){.grid{grid-template-columns:1fr}.card.feature{grid-column:auto}}
.layout{max-width:1000px;margin:0 auto;padding:0 24px;display:grid;
  grid-template-columns:minmax(0,68ch) 190px;gap:48px;align-items:start}
.layout>main{min-width:0}
@media(max-width:980px){.layout{grid-template-columns:minmax(0,1fr)}.toc-rail{display:none}}
.crumb{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:26px 0 0;color:var(--dim);font-size:13px}
.crumb a{color:var(--dim)} .crumb li+li::before{content:"/";margin-inline-end:6px;color:#4b5260}
[dir=rtl] .crumb li+li::before{content:"\\"}
article h1{font-size:clamp(2rem,4.4vw,2.4rem);margin:14px 0 14px}
.byline{display:flex;flex-wrap:wrap;align-items:center;gap:10px;row-gap:2px;color:var(--muted);font-size:14px;margin-block-end:26px}
.byline a{white-space:nowrap}
@media(max-width:420px){.role{display:none}}
.avatar{inline-size:34px;block-size:34px;border-radius:50%;background:linear-gradient(135deg,#2a3240,#1c222c)}
img.avatar,.author img.av{object-fit:cover}
article p{margin:0 0 16px} article h2{font-size:1.625rem;margin-block-start:48px;margin-block-end:8px;scroll-margin-block-start:80px}
.capsule{background:var(--card2);border:1px solid var(--line);border-inline-start:4px solid var(--proof);
  border-radius:var(--radius-lg);padding:18px 20px;font-size:1.45rem;line-height:1.5;margin:0 0 24px;color:#cdd4df;box-shadow:inset 0 1px 0 rgba(255,255,255,.03)}
.capsule b{font-weight:600;color:var(--text)}
.takeaways{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:14px 20px;margin:0 0 24px}
.takeaways b{display:block;margin-block-end:6px;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.takeaways li{margin:5px 0}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;margin:14px 0 8px;font-size:1rem}
caption{caption-side:top;text-align:start;color:var(--muted);font-size:13px;margin-block-end:8px}
th,td{text-align:start;padding:11px 12px;border-block-end:1px solid var(--line)}
thead th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
th[scope=row]{font-weight:inherit;color:inherit}
tr.strong td,tr.strong th{color:var(--proof-ink);font-weight:600;background:rgba(34,197,94,.06)}
.proofline{display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--proof-bg);border:1px solid var(--proof-line);border-inline-start:4px solid var(--proof);
  border-radius:var(--radius-lg);padding:12px 14px;margin:6px 0 22px;font-size:14px}
.proofline .ok{color:var(--proof-ink);font-weight:700}
.proofline .id{font-family:ui-monospace,Menlo,monospace;color:var(--muted)}
.proofline a{margin-inline-start:auto;color:var(--proof-ink);font-weight:600}
ol{padding-inline-start:20px} ol li{margin:8px 0}
blockquote{margin:6px 0 22px;padding:13px 18px;border-inline-start:3px solid var(--line);background:var(--card2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--lead);font-size:1.02rem;font-style:normal}
details{border-block-end:1px solid var(--line);padding:12px 0}
summary{cursor:pointer;font-weight:600;font-family:Outfit,sans-serif}
summary::marker{color:var(--muted)}
details p{margin:8px 0 0;color:var(--muted);font-size:15px}
.toc-mobile{display:none}
@media(max-width:980px){.toc-mobile{display:block;margin:18px 0;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:6px 16px}
  .toc-mobile summary{padding:8px 0}.toc-mobile a{display:block;color:var(--muted);padding:6px 0}}
.softcta{border-block-start:1px solid var(--line);margin-block-start:24px;padding-block-start:18px;font-size:15px;color:var(--muted)}
.softcta a{color:var(--proof-ink);font-weight:600}
.author{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:14px 18px;margin:24px 0}
.author .av{inline-size:46px;block-size:46px;border-radius:50%;background:linear-gradient(135deg,#2a3240,#1c222c);flex:none}
.author p{margin:0;font-size:14px;color:var(--muted)}
.related a{display:block;padding:10px 0;border-block-end:1px solid var(--line);color:var(--text)}
.related a::before{content:"\2192\00a0";color:var(--nav)}
[dir=rtl] .related a::before{content:"\00a0\2190";}
.toc-rail{position:sticky;inset-block-start:84px;font-size:14px}
.toc-rail a{display:block;color:var(--muted);padding:5px 0;border-inline-start:2px solid var(--line);padding-inline-start:12px}
.toc-rail a.active{color:var(--text);font-weight:600;border-inline-start-color:var(--nav)}
footer{border-block-start:1px solid var(--line);color:var(--dim);font-size:13px;padding:26px 0 50px;margin-block-start:30px}
footer a{color:var(--dim);margin-inline-end:16px}
.pwr{color:var(--muted)}
@media (prefers-reduced-motion:reduce){.card:hover{transform:none}}
@media(max-width:560px){.proofline{flex-direction:column;align-items:flex-start;gap:6px}.proofline a{margin-inline-start:0}}