/* Self-hosted and air-gapped: a boundary-diagram hero, a stays/leaves split,
   deployment targets, and a hardening list. Brand tokens only, one accent. */

.sh-main{overflow:clip}
.sh-link{font-size:15px;font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;color:var(--ink)}
.sh-link:hover{color:var(--signal)}
.sh-actions{display:flex;gap:26px;align-items:center;flex-wrap:wrap;margin-top:34px}

/* Hero */
.sh-hero{max-width:1240px;margin:0 auto;padding:clamp(40px,5vw,72px) clamp(20px,4vw,48px) clamp(56px,7vw,92px);
  display:grid;grid-template-columns:1.02fr 1fr;gap:clamp(36px,5vw,72px);align-items:center}
.sh-hero h1{font-size:clamp(34px,4.6vw,66px);line-height:1.02;letter-spacing:-.04em;max-width:14ch;margin:0}
.sh-lede{margin-top:26px;font-size:clamp(17px,1.7vw,20px);line-height:1.55;color:var(--fg-505a52);max-width:54ch}
.sh-boundary{margin:0;min-width:0}
.sh-boundary svg{width:100%;height:auto;display:block;font-family:var(--code)}
.sh-perim{fill:none;stroke:var(--moss);stroke-width:1.5;stroke-dasharray:6 6}
.sh-perim-t{fill:var(--moss-text,var(--moss));font-size:12px;font-weight:600}
.sh-node rect{fill:var(--sage);stroke:var(--bd-bec8b5);stroke-width:1}
.sh-node text{fill:var(--ink);font-size:13px}
.sh-srv rect{fill:var(--ink);stroke:none}
.sh-srv text{fill:var(--paper);font-weight:600}
.sh-wire{fill:none;stroke:var(--signal);stroke-width:1.8}
.sh-wire-t{fill:var(--signal-text);font-size:11px}
.sh-out rect{fill:none;stroke:var(--line-strong);stroke-width:1.2}
.sh-out text{fill:var(--ink);font-size:12px;font-weight:600}

/* Stays / leaves */
.sh-cross{max-width:1240px;margin:0 auto;padding:clamp(20px,3vw,40px) clamp(20px,4vw,48px) clamp(56px,7vw,92px)}
.sh-cross-head{max-width:46ch;margin-bottom:12px;padding-bottom:36px;border-bottom:2px solid var(--ink)}
.sh-cross-head h2{font-size:clamp(28px,3.4vw,48px);letter-spacing:-.035em}
.sh-cross-head p{margin-top:16px;font-size:17px;line-height:1.55;color:var(--muted)}
.sh-cols{display:grid;grid-template-columns:1.2fr .8fr;gap:0}
.sh-cols>div{padding:38px 48px 38px 0}
.sh-cols .sh-leaves{padding:38px 0 38px 48px;border-left:1px solid var(--line)}
.sh-cols h3{font:600 clamp(19px,2vw,24px)/1.2 var(--display);letter-spacing:-.02em;margin-bottom:22px}
.sh-cols ul{list-style:none;margin:0;padding:0}
.sh-cols li{position:relative;padding:12px 0 12px 30px;font-size:16px;line-height:1.5;color:var(--ink);border-top:1px solid var(--line)}
.sh-cols li::before{content:"";position:absolute;left:0;top:19px;width:9px;height:9px;border-radius:50%;background:var(--moss)}
.sh-leaves li::before{background:var(--signal)}
.sh-leaves-note{margin-top:20px;font-size:15px;line-height:1.6;color:var(--muted);max-width:34ch}

/* Deployment targets */
.sh-run{background:var(--sage);border-top:1px solid var(--bd-bec8b5);border-bottom:1px solid var(--bd-bec8b5)}
.sh-run-head{max-width:1240px;margin:0 auto;padding:clamp(54px,6vw,84px) clamp(20px,4vw,48px) 0}
.sh-run-head h2{font-size:clamp(26px,3vw,42px);letter-spacing:-.03em;max-width:16ch}
.sh-run-head p{margin-top:14px;font-size:17px;color:var(--fg-53624e)}
.sh-targets{max-width:1240px;margin:0 auto;list-style:none;padding:clamp(34px,4vw,52px) clamp(20px,4vw,48px) clamp(54px,6vw,84px);
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--bd-bec8b5);border:1px solid var(--bd-bec8b5)}
.sh-targets li{background:var(--paper);display:flex;align-items:center;gap:16px;padding:24px 26px;flex-wrap:wrap}
.sh-targets img{width:34px;height:34px;flex:none;object-fit:contain}
.sh-targets b{font:600 17px var(--display);letter-spacing:-.01em}
.sh-targets span{width:100%;padding-left:50px;font:400 13px var(--code);color:var(--muted)}
.sh-txt{padding-left:26px}
.sh-txt span{padding-left:0}

/* Hardening */
.sh-hard{max-width:1240px;margin:0 auto;padding:clamp(58px,7vw,100px) clamp(20px,4vw,48px);
  display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(36px,6vw,80px);align-items:start}
.sh-hard-head{position:sticky;top:104px}
.sh-hard-head h2{font-size:clamp(26px,3vw,42px);letter-spacing:-.035em;max-width:14ch}
.sh-hard-head p{margin-top:16px;font-size:16px;line-height:1.55;color:var(--muted);max-width:34ch}
.sh-dl{margin:0;border-top:1px solid var(--line)}
.sh-dl>div{padding:26px 0;border-bottom:1px solid var(--line)}
.sh-dl dt{font:600 20px/1.25 var(--display);letter-spacing:-.02em}
.sh-dl dd{margin:10px 0 0;font-size:16px;line-height:1.6;color:var(--fg-505a52);max-width:60ch}

/* Close */
.sh-close{max-width:1240px;margin:0 auto;padding:clamp(56px,7vw,92px) clamp(20px,4vw,48px) 70px;
  display:grid;grid-template-columns:1.3fr auto;gap:48px;align-items:center;border-top:1px solid var(--line)}
.sh-close h2{font-size:clamp(30px,3.6vw,50px);letter-spacing:-.035em;max-width:14ch}
.sh-close p{margin:18px 0 0;font-size:17px;line-height:1.55;color:var(--fg-505a52);max-width:50ch}
.sh-close p a{color:var(--signal-text);text-decoration:underline;text-underline-offset:3px}
.sh-mascot{width:clamp(180px,22vw,290px);height:auto;justify-self:end}

@media(max-width:860px){
  .sh-hero{grid-template-columns:1fr;gap:32px}
  .sh-cols{grid-template-columns:1fr}
  .sh-cols>div,.sh-cols .sh-leaves{padding:28px 0;border-left:0;border-top:1px solid var(--line)}
  .sh-targets{grid-template-columns:1fr}
  .sh-hard{grid-template-columns:1fr;gap:26px}
  .sh-hard-head{position:static}
  .sh-close{grid-template-columns:1fr;gap:30px}
  .sh-mascot{justify-self:start;width:190px}
}
@media(prefers-reduced-motion:reduce){.sh-main *{transition:none!important}}