:root{--paper:#f3f1e9;--ink:#142c30;--muted:#536467;--line:#d4d9cf;--accent:#c8ec82;--white:#fffef8}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 system-ui,-apple-system,sans-serif}a{color:inherit;text-underline-offset:4px}button,a{touch-action:manipulation}button{font:inherit;cursor:pointer}button:focus-visible,a:focus-visible{outline:3px solid #395ee5;outline-offset:4px}header{max-width:1280px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:30px 48px;border-bottom:1px solid var(--line)}.brand{font-size:20px;font-weight:850;line-height:1.15;letter-spacing:-.8px;text-decoration:none}.brand span{display:block;font-size:11px;letter-spacing:3px;font-weight:550;margin-top:8px}nav{display:flex;align-items:center;gap:30px}nav button{border:1px solid var(--ink);background:transparent;border-radius:50%;width:44px;height:44px;font-size:13px}main{max-width:1280px;margin:auto;padding:0 48px}.hero{padding:84px 0 70px;max-width:910px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:750;color:var(--muted)}h1{font-size:clamp(38px,5.8vw,76px);font-weight:560;line-height:1.08;letter-spacing:-3px;margin:24px 0}.intro{max-width:660px;font-size:19px;color:var(--muted)}.primary{display:inline-block;background:var(--ink);color:var(--white);padding:14px 23px;border-radius:4px;text-decoration:none;margin:18px 0 22px}.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:15px}h2{font-size:28px;line-height:1.3;font-weight:550;letter-spacing:-.7px}.cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}.card{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;display:flex;flex-direction:column}.card-content{padding:26px 30px;flex:1}.card-meta{display:flex;justify-content:space-between;gap:10px;font-size:11px;color:var(--muted)}.card h3{font-size:25px;line-height:1.25;letter-spacing:-.7px;font-weight:570;margin:22px 0 12px}.card p{font-size:14px;color:var(--muted)}.tags{display:flex;gap:7px;flex-wrap:wrap;margin:20px 0}.tags span{font-size:10px;border:1px solid var(--line);padding:3px 7px;border-radius:3px}.card-link{border:0;background:transparent;padding:0;font-size:13px;font-weight:750;border-bottom:1px solid var(--ink)}#detail{margin-top:35px;padding:35px;background:var(--white);border:1px solid var(--line);border-radius:8px}#detail h2{font-size:34px}.proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.proof{padding:20px;background:#edf1eb;border-radius:6px;min-width:0}.proof h3{margin-top:0}.proof p{font-size:12px}.proof pre{background:#152d31;color:#e4eddf;padding:15px;overflow:auto;font-size:11px;line-height:1.65;border-radius:4px;white-space:pre-wrap;overflow-wrap:anywhere}video{width:100%;max-height:560px;background:#12282d;border-radius:5px}.notice{padding:15px 20px;background:#f2eddc;border-left:3px solid #ad8c36;font-size:13px}.method{margin-top:100px;padding:50px 0 70px;border-top:1px solid var(--line)}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-top:34px}.method h3{font-size:17px;font-weight:650}.method article>span{font-size:12px;color:var(--muted)}.method p:not(.eyebrow){font-size:14px;color:var(--muted)}footer{background:var(--ink);color:var(--paper);padding:28px max(24px,calc((100vw - 1184px)/2));display:flex;justify-content:space-between;gap:20px;font-size:11px;letter-spacing:1px}footer p+ p{color:#becfc5;letter-spacing:0}@media(max-width:680px){header{padding:22px}nav{gap:12px}main{padding:0 22px}.hero{padding-top:48px}h1{letter-spacing:-1.8px}.intro{font-size:17px}.section-head{display:block}.cards,.proof-grid,.method-grid{grid-template-columns:1fr}.card-content{padding:22px}.method{margin-top:60px}#detail{padding:20px}#detail h2{font-size:27px}footer{display:block}}
#detail pre{white-space:pre-wrap;overflow-wrap:anywhere;max-width:100%;overflow:auto;font-size:12px;line-height:1.7}#detail-body{min-width:0}header,main{min-width:0}

.detail-intro{font-size:19px;max-width:800px}.recording{margin:32px 0}.supporting{margin:18px 0;border:1px solid var(--line);border-radius:6px;padding:18px}.supporting summary{cursor:pointer;font-weight:650}.supporting summary:focus-visible{outline:3px solid #395ee5;outline-offset:4px}.supporting[open] summary{margin-bottom:18px}

/* Commercial presentation2dbc4205: retain the existing palette and structure. */
.hero{padding:54px 0 42px;max-width:960px}h1{font-size:clamp(36px,5vw,64px);letter-spacing:-2px}.intro{max-width:780px;font-size:18px}.card-content{padding:22px 25px}.card h3{font-size:23px;margin:16px 0 12px}.built{color:var(--ink)!important}.tags{margin:14px 0}.method{margin-top:65px;padding:32px 0 48px}.recording{margin:24px 0}.recording>p{font-size:14px;color:var(--muted);max-width:900px}.media-download{display:inline-block;margin:12px 22px 8px 0;font-size:13px}.recording video{aspect-ratio:16/9;max-height:none;display:block}@media(max-width:680px){.hero{padding:35px 0}.card-content{padding:20px}.media-download{display:block;margin:12px 0}}
.contact{display:flex;align-items:center;flex-wrap:wrap;gap:6px 22px;margin:18px 0 14px}.contact .primary{margin:0}.contact-address{font-size:15px}.hero-note{font-size:12px;color:var(--muted)}footer a{color:inherit}
.card.featured{grid-column:1/-1;border-color:var(--ink);box-shadow:0 1px 0 var(--ink)}.card.featured h3{font-size:30px}.featured-label{background:var(--accent);color:var(--ink);font-weight:750;letter-spacing:1px;padding:2px 8px;border-radius:3px}@media(max-width:680px){.card.featured h3{font-size:24px}}