/* Reference lock: design/2026-10-18-defense-presentation.md.
   Open hardware imagery, plain typography, and a consistent content rail. */
:root{
 --section-space:clamp(64px,7vw,112px);
 --heading-large:clamp(44px,5.4vw,84px);
 --heading-section:clamp(32px,3.8vw,56px);
 --heading-card:clamp(28px,2.8vw,40px);
}
@media screen{
 .section{padding-inline:var(--gutter);padding-block:var(--section-space)}
 .site-header,.footer{padding-inline:var(--gutter)}
 .site-header{gap:clamp(14px,1.6vw,26px)}
 .desktop-nav{gap:clamp(14px,1.5vw,24px);font-size:13px}
 .button{border-radius:0;box-shadow:none;min-height:48px;padding:13px 22px;letter-spacing:.01em}
 .header-cta{min-height:44px;padding:10px 16px;font-size:12px}
 .button-outline{border-color:var(--line)}
 .button-outline:hover{border-color:var(--mint)}
 .text-button{letter-spacing:.01em;text-decoration-thickness:1px}
 .eyebrow{font-size:11px;line-height:1.65;letter-spacing:.1em}
 main h1,main h2,.footer .footer-tagline{text-shadow:none}
 .editorial-intro h1,.catalogue-intro h1,.assurance-intro h1,
 .capability-heading h1,.airspace-hero h1,.cyber-hero h1{
  font-size:var(--heading-large);line-height:1.06;letter-spacing:-.045em;max-width:21ch
 }
 .portfolio-heading h2,.evidence-message h2,.faq-intro h2,
 .airspace-section-head h2,.cyber-section-head h2,.capability-section-head h2,
 .security-home h2,.contact-section h2{
  font-size:var(--heading-section);line-height:1.12;letter-spacing:-.035em
 }
 .editorial-intro,.catalogue-intro,.product-detail-intro,.edge-intro{padding-top:40px;padding-bottom:64px}
 .breadcrumbs{margin-bottom:36px;letter-spacing:.025em}
 .editorial-lead,.airspace-lead,.cyber-lead,.capability-lead{font-size:18px;line-height:1.7;max-width:60ch}
 .portfolio-nav{border-bottom:1px solid var(--line)}
 .portfolio-nav a{min-height:44px;display:inline-flex;align-items:center}
 .portfolio-heading{max-width:none;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);column-gap:9%;align-items:start}
 .portfolio-heading>.eyebrow{grid-column:1/-1;margin:0 0 28px}
 .portfolio-heading h2{grid-column:1;grid-row:2/4;max-width:20ch;margin:0}
 .portfolio-heading>p:not(.eyebrow){grid-column:2;margin:0;font-size:17px;line-height:1.75;max-width:50ch}
 .portfolio-heading>.button{grid-column:2;justify-self:start;margin-top:24px}
 .family-grid{gap:52px 40px;margin-top:52px}
 .family-grid .family-link{transform:none;padding-bottom:22px}
 .family-grid .family-link:hover{transform:none}
 .family-grid .family-link>.family-register{padding-block:14px;color:var(--muted)}
 .family-register .family-index{font-size:16px;letter-spacing:0}
 .family-grid .family-link .family-visual{aspect-ratio:16/10;margin-bottom:24px;background:#111a18}
 .family-grid .family-visual img{width:100%;height:100%;object-fit:contain}
 .family-visual:after{display:none}
 .family-grid .family-link .category-title{font-size:var(--heading-card);font-weight:500;line-height:1.12;letter-spacing:-.035em;margin:0 0 12px}
 .family-grid .family-link>.category-offering{font:400 12px/1.7 var(--mono);letter-spacing:.035em;color:var(--mint);margin:0 0 16px}
 .family-grid .family-link p{font-size:16px;line-height:1.7;max-width:56ch;margin-bottom:22px}
 .family-grid .family-link .family-count{font:500 13px/1.6 var(--sans);width:100%;justify-content:space-between;border-top:1px solid var(--line);padding-top:14px}
 .family-link:focus-visible{outline:2px solid var(--mint);outline-offset:8px}
 .product-grid{column-gap:40px;row-gap:56px}
 .product-card,.product-card:focus-within{background:transparent;border:0;border-bottom:1px solid var(--line);padding:0 0 24px}
 .product-card-top{padding-block:16px;border-top:1px solid var(--line);border-bottom:0}
 .product-card .render-study{width:100%;margin:0 0 24px;border:0}
 .product-card .render-study-image{aspect-ratio:16/10;background:#111a18}
 .product-card .render-study-image img{height:100%;width:100%;object-fit:contain}
 .product-card .category-title{font-size:var(--heading-card);line-height:1.12;font-weight:500;margin-top:0}
 .product-card .category-offering{font:400 12px/1.7 var(--mono);letter-spacing:.035em;color:var(--mint)}
 .product-card .product-description{line-height:1.7;max-width:58ch}
 .product-card .product-facts{margin-block:24px}
 .product-card .product-facts dt{font-size:11px;line-height:1.6}
 .product-card .product-facts dd{font-size:14px;line-height:1.6}
 .product-card>.text-button{align-self:flex-start}
 .edge-art,.product-hero-art{border:0}
 .edge-intro h1{font-size:clamp(48px,5.8vw,88px);letter-spacing:-.045em}
 .edge-tagline{font-size:clamp(23px,2.3vw,33px);line-height:1.3}
 .edge-facts{gap:24px;margin-top:40px;padding-top:24px}
 .edge-facts dt{font-size:11px;line-height:1.6}
 .edge-facts dd{font-size:16px}
 .edge-stage{font:400 11px/1.7 var(--mono);letter-spacing:.07em;padding:8px 12px;border:1px solid var(--line);display:inline-block}
 .security-home{gap:clamp(32px,5vw,80px);border-top:1px solid var(--line)}
 .security-home-copy .eyebrow{color:var(--mint);margin-bottom:24px}
 .security-home-copy h2{margin-bottom:24px}
 .security-home-copy>p:not(.eyebrow){line-height:1.7}
 .security-home-image{border:1px solid var(--line)}
 .security-home-links{gap:8px}
 .security-home-links .text-button{min-height:44px;display:flex;align-items:center;gap:12px}
 .security-service-main h1 span{color:inherit}
 .security-intro{padding-bottom:0}
 .security-jump a{min-height:44px;display:inline-flex;align-items:center}
 .security-trust-map{background:transparent;border:0;border-top:1px solid var(--mint);padding:24px 0}
 .security-section-heading{max-width:760px}
 .security-output{line-height:1.7}
 .security-related{padding-top:0}
 .publication-announcement.section{padding-block:48px;border-block:1px solid var(--line);background:var(--surface)}
 .publication-announcement h2{font-size:clamp(30px,3vw,44px);letter-spacing:-.035em}
 .publication-announcement p:not(.eyebrow){max-width:62ch}
 .contact-section.section{display:grid;grid-template-columns:1fr auto;align-items:center;column-gap:48px;text-align:left;padding-block:64px;background:var(--surface);border-block:1px solid var(--line)}
 .contact-section.section:before{display:none}
 .contact-section h2{grid-column:1;grid-row:1/3;margin:0;max-width:17ch}
 .contact-section .button{grid-column:2;grid-row:1;margin:0;min-height:48px;font-size:14px;border-radius:0;justify-self:end}
 .contact-section>a{grid-column:2;grid-row:2;margin:12px 0 0;justify-self:end;font-size:15px}
 .contact-section>.eyebrow{grid-column:1/-1;grid-row:1;margin:0 0 22px}
 .contact-section>.eyebrow+h2{grid-row:2/4}
 .contact-section>.eyebrow~.button{grid-row:2}
 .contact-section>.eyebrow~a{grid-row:3}
 .footer{padding-top:64px}
 .footer .footer-tagline{font-size:27px;line-height:1.2;max-width:15ch;margin-top:24px}
 .footer .footer-statement{border:0;padding:0;line-height:1.7;margin-top:22px;max-width:28ch;font-size:14px}
 .footer .footer-top>nav{font-size:14px}
 .footer .footer-top nav a{min-height:44px;padding-block:8px}
 .footer .footer-top>nav>.eyebrow{margin-bottom:20px}
 .footer .footer-policies{font-size:12px}
 .footer .footer-bottom{font-size:12px}
 .footer .theme-toggle{border-radius:0}
 .dialog-close{border-radius:0}
}
/* Three entry points form a quiet navigation rail beneath the flight scene. */
.brief-entry.mission-paths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:0 var(--gutter);background:var(--bg);border-block:1px solid var(--line)}
.mission-paths>a{display:flex;align-items:center;gap:20px;min-width:0;min-height:126px;padding:28px 26px;border-left:1px solid var(--line)}
.mission-paths>a:first-child{border-left:0;padding-left:0}
.mission-paths>a:last-child{padding-right:0}
.mission-path-index{font:400 11px/1.6 var(--mono);color:var(--mint);align-self:flex-start;margin-top:5px}
.mission-paths strong{display:block;font:500 clamp(17px,1.5vw,22px)/1.3 var(--sans);letter-spacing:-.02em}
.mission-path-action{display:block;margin-top:8px;font-size:12px;line-height:1.6;color:var(--muted)}
.mission-path-arrow{margin-left:auto;color:var(--mint);flex:none}
.mission-paths>a:hover strong{color:var(--mint)}
.mission-paths>a:focus-visible{outline:2px solid var(--mint);outline-offset:-4px}
@media screen and (min-width:901px){
 .edge-hero-grid{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:6%;margin-top:24px}
 .edge-art img{min-height:320px;object-fit:contain}
}
@media screen and (min-width:801px){
 .hero.flight-hero .hero-copy h1{font-size:clamp(58px,6.4vw,104px)}
 .hero.flight-hero .hero-copy>p:not(.eyebrow){max-width:42ch;font-size:17px}
 .hero.flight-hero .hero-shade{background:linear-gradient(90deg,#071216f2 0%,#09171cd9 34%,#0b192170 59%,transparent 82%),linear-gradient(0deg,#0c181ef5 0%,transparent 40%)}
}
@media screen and (min-width:801px) and (max-height:780px){
 .hero.flight-hero .hero-copy h1{font-size:clamp(54px,5.9vw,88px)}
}
@media screen and (max-width:1100px){
 .mission-paths>a{gap:14px;padding-inline:20px}
 .mission-path-index{display:none}
}
@media screen and (max-width:800px){
 :root{--section-space:56px;--heading-large:clamp(38px,7.5vw,60px);--heading-section:clamp(32px,6vw,46px);--heading-card:clamp(27px,4.3vw,34px)}
 .site-header{gap:10px}
 .section.editorial-intro,.catalogue-intro,.product-detail-intro,.edge-intro{padding-top:28px;padding-bottom:40px}
 .editorial-lead,.airspace-lead,.cyber-lead,.capability-lead{font-size:16px;line-height:1.75}
 .portfolio-heading{display:block}
 .portfolio-heading>.eyebrow{margin-bottom:22px}
 .portfolio-heading h2{max-width:22ch}
 .portfolio-heading>p:not(.eyebrow){font-size:16px;margin-top:22px;max-width:60ch}
 .family-grid{column-gap:24px;row-gap:40px;margin-top:36px}
 .family-grid .family-link .family-visual{aspect-ratio:16/10}
 .family-grid .family-link .category-title{font-size:var(--heading-card)}
 .family-grid .family-link p{line-height:1.7}
 .product-grid{column-gap:24px;row-gap:40px}
 .product-card .render-study{width:100%;margin:0 0 24px}
 .product-card .render-study-image{aspect-ratio:16/10}
 .product-card .render-study-image img{height:100%}
 .product-card .category-title{font-size:var(--heading-card)}
 .edge-hero-grid{margin-top:24px}
 .security-home-image{order:0}
 .security-home{gap:28px}
 .security-home h2 br{display:initial}
 .security-intro{padding-bottom:0}
 .contact-section.section{column-gap:24px;padding-block:48px}
 .contact-section .button{padding-inline:18px}
 .footer{padding-top:44px}
}
@media screen and (max-width:650px){
 .brief-entry.mission-paths{grid-template-columns:1fr}
 .mission-paths>a,.mission-paths>a:first-child,.mission-paths>a:last-child{padding:22px 0;min-height:90px;border-left:0;border-top:1px solid var(--line);gap:16px}
 .mission-paths>a:first-child{border-top:0}
 .mission-path-index{display:block}
 .mission-paths strong{font-size:20px}
 .mission-path-action{font-size:12px;margin-top:5px}
 .family-grid{gap:36px}
 .family-grid .family-link{padding-bottom:20px}
 .family-grid .family-link .category-title{font-size:32px}
 .family-grid .family-link p{font-size:16px}
 .product-card{padding:0 0 24px}
 .contact-section.section{display:flex;flex-direction:column;align-items:flex-start;gap:22px}
 .contact-section h2{max-width:18ch}
 .contact-section>.eyebrow{margin:0}
 .contact-section>a{margin:0;padding:0;min-height:44px;display:flex;align-items:center}
 .footer .footer-tagline{font-size:26px}
 .footer .footer-statement{max-width:39ch;font-size:15px}
}
@media (prefers-reduced-motion:no-preference){
 .family-visual img{transition:transform .5s cubic-bezier(.2,.65,.3,1)}
 .family-link:hover .family-visual img{transform:scale(1.025)}
}
@media print{.mission-paths{display:none}}