:root{color-scheme:dark;--bg:#0c141a;--panel:#131f27;--text:#f0f0e9;--muted:#acb6bc;--gold:#d5b77c;--line:#2c3941;font-family:Arial,Helvetica,sans-serif;font-synthesis:none;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}a:focus-visible{outline:2px solid var(--gold);outline-offset:6px}a:hover{color:var(--gold)}.wrap{width:min(1180px,calc(100% - 80px));margin-inline:auto}.header{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-block:29px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:14px;font-size:17px;line-height:1.3;font-weight:700;letter-spacing:1.5px}.brand small{display:block;font-size:12px;font-weight:400;letter-spacing:4px;color:var(--muted);margin-top:5px}.monogram{border:1px solid 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19px;font-size:14px;font-weight:600;line-height:1.4}.primary{background:var(--gold);color:#0c141a}.primary:hover{background:#e7cb95;color:#0c141a}.text-link{font-size:14px;display:inline-flex;align-items:center;gap:15px;border-bottom:1px solid #6c6a5b;padding-block:6px}.desk{background:var(--panel);border:1px solid var(--line);border-top:2px solid var(--gold);padding:26px 31px 0}.desk-top{display:flex;justify-content:space-between;gap:15px;letter-spacing:1.2px;font-size:12px;color:var(--muted);padding-bottom:25px;border-bottom:1px solid var(--line)}.desk-kicker{font-size:12px;color:var(--gold);letter-spacing:2px;margin:27px 0 12px}.desk h2{font-family:Georgia,serif;font-size:35px;line-height:1.2;font-weight:400;letter-spacing:-.5px;margin:0 0 16px}.desk>p:not(.desk-kicker){color:var(--muted);font-size:14px;line-height:1.75;margin:0 0 28px}.process{list-style:none;padding:0;margin:0}.process li{display:flex;align-items:center;gap:18px;padding:16px 0;border-top:1px solid var(--line);font-size:16px}.process li>span{color:var(--gold);font-size:12px;font-family:monospace}.process small{display:block;font-size:12px;color:var(--muted);margin-top:2px}.desk-footer{margin-top:15px;border-top:1px solid var(--line);padding-block:19px;display:flex;justify-content:space-between;gap:10px;letter-spacing:1px;font-size:12px;color:var(--muted)}.desk-footer span{color:var(--gold)}.principle-strip{border-block:1px solid var(--line);background:#101b22}.principle-strip .wrap{display:flex;justify-content:space-between;padding-block:22px;color:var(--muted);font-family:Georgia,serif;font-size:23px}.section{padding-block:91px;scroll-margin-top:24px}.section-heading h2{font-family:Georgia,serif;font-size:clamp(34px,4vw,50px);font-weight:400;line-height:1.14;letter-spacing:-1.4px;margin:0 0 23px}.section-heading>p:not(.eyebrow){max-width:630px;color:var(--muted);margin:0 0 30px;font-size:17px}.validation-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;margin-top:42px}.record-card{padding:32px 35px;border:1px solid var(--line);background:var(--panel);display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.card-label{color:var(--gold);font-size:12px;letter-spacing:1.8px;margin-bottom:18px}.record-card h3{font-family:Georgia,serif;font-size:32px;font-weight:400;line-height:1.25;margin:0 0 10px}.record-card p{color:var(--muted);margin:0 0 20px}.record-notes>div{display:flex;gap:23px;padding:20px 0;border-top:1px solid var(--line)}.record-notes>div:first-child{padding-top:0;border:0}.note-number{font-family:Georgia,serif;color:var(--gold);font-size:21px}.record-notes h3{font-size:16px;font-weight:500;margin:0 0 4px}.record-notes p{color:var(--muted);font-size:14px;margin:0}.method-section{background:#111d25;border-block:1px solid var(--line);scroll-margin-top:0}.methods{display:grid;grid-template-columns:repeat(4,1fr);gap:31px;margin-top:47px}.step{font-family:Georgia,serif;color:var(--gold);font-size:35px;display:block;border-bottom:1px solid var(--line);padding-bottom:19px;margin-bottom:21px}.methods h3{font-size:17px;font-weight:500;margin:0 0 13px}.methods p{font-size:16px;color:var(--muted);margin:0;line-height:1.8}.performance{display:grid;grid-template-columns:1fr 1fr;gap:94px}.outline{border:1px solid #788385;margin-top:5px}.metrics-guide .eyebrow{margin-bottom:18px}.metrics-guide dl{margin:0}.metrics-guide dl>div{display:grid;grid-template-columns:150px 1fr;gap:18px;border-top:1px solid var(--line);padding-block:19px}.metrics-guide dt{font-size:14px;font-weight:600}.metrics-guide dd{font-size:14px;color:var(--muted);margin:0}.small-note{font-size:12px;color:var(--muted);line-height:1.8;margin:20px 0 0}.channels{border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1.3fr;gap:70px}.channel-list>a{display:flex;align-items:center;gap:22px;border-top:1px solid var(--line);padding:21px 6px}.channel-list>a:last-child{border-bottom:1px solid var(--line)}.channel-icon{font-family:Georgia,serif;font-size:23px;width:37px;color:var(--gold)}.channel-list strong{display:block;font-size:18px;font-weight:500}.channel-list small{display:block;color:var(--muted);font-size:14px;margin-top:3px}.out-arrow{margin-left:auto;font-size:24px;color:var(--gold)}footer{border-top:1px solid var(--line);padding-block:34px 26px}.footer-top,.footer-bottom{display:flex;justify-content:space-between;gap:22px;font-size:12px;color:var(--muted)}.footer-top{letter-spacing:1.5px}.footer-brand{color:var(--text);font-weight:600}.disclaimer{max-width:920px;margin-block:33px}.disclaimer h2{font-size:14px;font-weight:500;margin-bottom:8px}.disclaimer p{font-size:12px;line-height:1.9;color:var(--muted);margin:0 0 9px}.disclaimer a{text-decoration:underline;text-underline-offset:3px}.footer-bottom{padding-top:24px;border-top:1px solid var(--line)}.skip{position:absolute;top:-100px;left:20px;padding:12px;background:var(--gold);color:var(--bg);z-index:10}.skip:focus{top:10px}@media(min-width:1400px){.hero{gap:115px}}@media(max-width:1000px){.wrap{width:calc(100% - 48px)}.hero{gap:38px}.hero h1{font-size:80px}.header nav{gap:18px}.desk{padding-inline:23px}.desk-footer{letter-spacing:0;font-size:12px}.validation-grid{gap:35px}.performance{gap:45px}.metrics-guide dl>div{grid-template-columns:110px 1fr}.methods{grid-template-columns:repeat(2,1fr);gap:32px}.channels{gap:35px}}@media(max-width:700px){.wrap{width:calc(100% - 40px)}.header{align-items:flex-start;flex-direction:column;gap:24px;padding-block:22px}.header nav{width:100%;justify-content:space-between;gap:9px;font-size:12px;flex-wrap:wrap}.brand{font-size:16px}.hero{grid-template-columns:1fr;gap:44px;padding-block:45px}.hero 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.wrap{font-size:15px}.desk{padding-inline:19px}.desk-footer{font-size:12px}.metrics-guide dl>div{grid-template-columns:1fr;gap:5px}}@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}

.header nav{font-size:14px}.desk-footer{flex-wrap:wrap}.methods article{min-width:0}@media(max-width:380px){.header nav{display:grid;grid-template-columns:1fr 1fr;gap:12px}.desk-top{flex-wrap:wrap}}