:root{color-scheme:light;--ink:#15233c;--muted:#4c5f69;--bg:#f7faf8;--mint:#ceff79;--teal:#0c6f61}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.66 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
a{color:#075d64}a:focus-visible{outline:3px solid #117ba3;outline-offset:4px}
.wrap{max-width:1140px;padding:0 24px;margin:auto}
.skip{position:absolute;left:-100vw;top:0;background:#fff;padding:10px}.skip:focus{left:15px}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px}
.nav nav{display:flex;gap:17px;flex-wrap:wrap}.nav nav a{font-size:14px;color:var(--ink)}
.brand{font-weight:900;font-size:21px;text-decoration:none;color:var(--ink)}.brand span{color:var(--teal)}
.hero{background:linear-gradient(135deg,#e4f8ed,#e9eff9);padding:83px 0 78px}
.eyebrow{color:var(--teal);font-size:12px;letter-spacing:.12em;font-weight:850}
h1{max-width:1020px;font-size:clamp(36px,6vw,68px);line-height:1.1;letter-spacing:-.05em;margin:16px 0 25px}
h1 em{color:var(--teal);font-style:normal}.lead{max-width:900px;font-size:20px;font-weight:575}
.actions{display:flex;align-items:center;gap:13px;flex-wrap:wrap;margin-top:28px}
.cta,.ghost{padding:12px 18px;border-radius:9px;font-weight:750;text-decoration:none}
.cta{background:var(--ink);color:#fff}.ghost{border:1px solid #7b9da0;background:#fff;color:var(--ink)}
.section{padding-top:65px;padding-bottom:66px;border-bottom:1px solid #d9e4e4}
.section h2{font-size:clamp(26px,3vw,38px);line-height:1.27}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:19px;margin-top:27px}
.grid article{background:white;border:1px solid #d0e1e2;border-radius:12px;padding:23px}
.grid h3{margin:0 0 10px;font-size:20px}.grid article a{font-weight:780}
footer{background:var(--ink);color:#d9e5e4}footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;padding-top:26px;padding-bottom:26px}
footer a{color:#d8fffa;font-size:13px;margin-right:12px}
@media(max-width:700px){.nav{flex-direction:column;align-items:flex-start;padding-top:16px;padding-bottom:18px}.grid{grid-template-columns:1fr}}

.fine{max-width:820px;font-size:13px;line-height:1.6;color:var(--muted);margin-top:13px}

/* Original source-backed security case study: content-centric, no external scripts. */
.case-study{max-width:1080px;padding-top:64px;padding-bottom:65px}
.case-study h1{max-width:940px;font-size:clamp(34px,5vw,61px)}
.case-study h3{font-size:21px}
.case-study .section{padding-top:42px;padding-bottom:46px}
.case-study p{max-width:920px}
.evidence-panel{background:#edf7f4;border:1px solid #aaccc5;border-radius:13px;padding:26px;margin-top:28px}
.evidence-panel h2{margin-top:0}
.evidence-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin:25px 0}
.evidence-grid>div{background:#fff;border:1px solid #d1e1df;border-radius:10px;padding:17px}
.evidence-grid strong{display:block;font-size:25px;color:var(--teal)}
.evidence-grid span{font-size:13px;color:var(--muted)}
.technical-steps{max-width:910px;padding-left:25px;line-height:1.75}
.technical-steps li{margin-bottom:11px}
.case-study code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em;padding:2px 4px;background:#e8eff0;border-radius:3px}
.case-study code.hash{overflow-wrap:anywhere;word-break:break-all}
@media(max-width:650px){.evidence-panel{padding:15px}.evidence-grid{grid-template-columns:1fr}}