:root{
  --navy:#0d1f33;
  --cream:#faf5ec;
  --cream2:#fffaf2;
  --gold:#8a6814;
  --gold2:#b8922a;
  --ink:#0d1f33;
  --muted:#35485f;
  --soft:rgba(13,31,51,.66);
  --line:rgba(13,31,51,.14);
  --line2:rgba(13,31,51,.26);
  --display:"GFS Didot","Didot","Bodoni 72","Times New Roman",serif;
  --text:"Cormorant Garamond","Garamond","Baskerville",serif;
  --ui:"DM Sans","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);background:linear-gradient(rgba(255,249,240,.965),rgba(255,249,240,.965)),repeating-linear-gradient(0deg,rgba(13,31,51,.018) 0,rgba(13,31,51,.018) 1px,transparent 1px,transparent 8px);font-family:var(--text);-webkit-font-smoothing:antialiased}
a{color:inherit}.topline{background:var(--navy);color:var(--cream);font-family:var(--ui);font-size:11px;letter-spacing:.2em;text-transform:uppercase;padding:10px 24px;text-align:center}
header{position:sticky;top:0;z-index:20;background:rgba(250,245,236,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{max-width:1220px;margin:0 auto;padding:20px 32px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{text-decoration:none;display:grid;gap:3px;min-width:230px}.brand strong{font-family:var(--ui);font-size:13px;letter-spacing:.24em;text-transform:uppercase;font-weight:600}.brand span{font-family:var(--ui);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--soft)}
nav ul{list-style:none;padding:0;margin:0;display:flex;gap:22px;align-items:center;flex-wrap:wrap}nav a,.button{font-family:var(--ui);font-size:11px;letter-spacing:.15em;text-transform:uppercase;text-decoration:none;color:var(--muted)}nav a[aria-current="page"]{color:var(--gold);font-weight:600}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:13px 20px;border:1px solid var(--line2);background:transparent;color:var(--navy);transition:.16s ease;text-align:center}.button:hover{background:var(--navy);color:var(--cream)}.nav>.button{background:var(--navy);border-color:var(--navy);color:var(--cream)}.button.gold{background:var(--gold);border-color:var(--gold);color:#fffaf2}.button.gold:hover{background:var(--navy);border-color:var(--navy)}
.content{max-width:1160px;margin:0 auto;padding:0 32px}.hero{padding:92px 0 70px;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(320px,.65fr);gap:64px;align-items:end}.kicker,.eyebrow{font-family:var(--ui);font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:16px}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.02;margin:0;color:var(--navy)}h1{font-size:clamp(44px,6vw,78px);letter-spacing:-.035em;max-width:920px}h2{font-size:clamp(34px,4.4vw,54px);letter-spacing:-.025em}h3{font-size:28px;letter-spacing:-.012em}p{font-size:22px;line-height:1.48;margin:18px 0;color:var(--muted)}.section-lede{max-width:860px;font-size:23px}.hero-copy{font-size:25px;max-width:780px;color:var(--muted)}.hero-actions,.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-card{border:1px solid var(--line2);background:rgba(255,250,242,.72);padding:34px;box-shadow:0 22px 60px rgba(13,31,51,.08)}.hero-card h2{font-size:34px;line-height:1.08;margin-bottom:18px}.hero-card p{font-size:19px;margin-bottom:0}.fact-row{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:grid;grid-template-columns:repeat(4,1fr);max-width:1220px;margin:0 auto;background:rgba(255,250,242,.52)}.fact{padding:24px 32px;border-right:1px solid var(--line)}.fact:last-child{border-right:0}.fact span{display:block;font-family:var(--ui);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--soft);margin-bottom:8px}.fact strong{font-family:var(--display);font-size:31px;font-weight:400;color:var(--navy)}
.section{padding:84px 0;border-bottom:1px solid var(--line)}.split{display:grid;grid-template-columns:.82fr 1.18fr;gap:70px;align-items:start}.list{margin:22px 0 0;padding:0;list-style:none;display:grid;gap:14px}.list li{font-size:21px;line-height:1.42;color:var(--muted);padding-left:28px;position:relative}.list li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);position:absolute;left:0;top:13px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}.cards.two{grid-template-columns:repeat(2,1fr)}.card{border:1px solid var(--line);background:rgba(255,250,242,.62);padding:28px;min-height:100%}.card .tag{font-family:var(--ui);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:14px}.card p{font-size:19px;margin-bottom:0}.callout{border:1px solid var(--line2);background:var(--navy);color:var(--cream);padding:44px;margin-top:36px}.callout h2,.callout h3,.callout p{color:var(--cream)}.callout .eyebrow{color:#e0bf59}.page-head{padding:72px 0 54px;border-bottom:1px solid var(--line)}.page-head p{max-width:900px;font-size:24px}
.topic-list{display:grid;gap:18px;margin-top:34px}.topic{border:1px solid var(--line);background:rgba(255,250,242,.68);padding:30px;display:grid;grid-template-columns:180px 1fr;gap:26px}.topic .meta{font-family:var(--ui);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:600}.topic p{font-size:20px;margin:12px 0 0}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:34px}.notice{font-family:var(--ui);font-size:12px;line-height:1.7;letter-spacing:.08em;text-transform:uppercase;color:var(--soft);border-top:1px solid var(--line);padding-top:22px;margin-top:34px}
footer{padding:54px 32px;background:var(--navy);color:var(--cream)}.footer-inner{max-width:1160px;margin:0 auto;display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px;align-items:start}footer p{color:rgba(250,245,236,.78);font-size:18px;margin:10px 0 0;max-width:760px}footer a{text-decoration:none;color:var(--cream);font-family:var(--ui);font-size:11px;letter-spacing:.16em;text-transform:uppercase}.footer-links{display:flex;gap:18px;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:920px){.nav{align-items:flex-start;flex-direction:column}.nav>.button{align-self:flex-start}nav ul{gap:14px}.hero,.split,.two-col{grid-template-columns:1fr}.hero{padding-top:58px}.fact-row{grid-template-columns:repeat(2,1fr)}.cards,.cards.two{grid-template-columns:1fr}.topic{grid-template-columns:1fr}.footer-inner{flex-direction:column}.footer-links{justify-content:flex-start}}
@media(max-width:620px){.content,.nav{padding-left:22px;padding-right:22px}h1{font-size:42px}.hero-copy,p{font-size:20px}.fact-row{grid-template-columns:1fr}.fact{border-right:0;border-bottom:1px solid var(--line)}.section{padding:62px 0}.topline{text-align:left}.button{width:100%}}
.answer-grid{display:grid;grid-template-columns:1fr;gap:14px}.answer-card{border:1px solid var(--line);border-left:4px solid var(--gold);background:rgba(255,250,242,.78);padding:22px 24px}.answer-card .tag{font-family:var(--ui);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:600;margin-bottom:8px}.answer-card p{font-size:20px;line-height:1.42;margin:0}.section.compact{padding:56px 0}.glance{align-items:center}.glance h2{font-size:clamp(32px,3.8vw,48px)}.narrow{max-width:920px}.page-hero{padding-top:72px}.faq-list{display:grid;gap:18px;margin-top:34px}.faq-list article{border-top:1px solid var(--line);padding-top:24px}.faq-list h3{font-size:30px}.faq-list p{font-size:20px;margin-bottom:0}
@media(max-width:920px){.answer-grid{grid-template-columns:1fr}}
.registry-table{width:100%;border-collapse:collapse;margin:24px 0}
.registry-table th{text-align:left;font-family:var(--ui);font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);padding:12px;border-bottom:2px solid var(--line)}
.registry-table td{padding:14px 12px;border-bottom:1px solid var(--line);font-size:18px;color:var(--muted);vertical-align:top}
.registry-table a{color:var(--navy);text-decoration:none}
.registry-table a:hover{color:var(--gold)}
.registry-ref,.inline-ref{display:inline-block;margin-top:14px;font-family:var(--ui);font-size:10px;letter-spacing:.15em;text-transform:uppercase;color:var(--gold);text-decoration:none;font-weight:600}
.registry-ref:hover,.inline-ref:hover{color:var(--navy)}
.standard-head{padding:72px 0 46px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(250,245,236,.96),rgba(255,250,242,.7))}
.standard-label{font-family:var(--ui);font-size:10px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:16px}
.standard-subtitle{max-width:840px;font-size:23px;color:var(--muted)}
.standard-meta{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line2);margin:30px 0 0;background:rgba(255,250,242,.76)}
.standard-meta div{padding:16px 18px;border-right:1px solid var(--line)}
.standard-meta div:last-child{border-right:0}
.standard-meta dt{font-family:var(--ui);font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--soft);margin-bottom:7px}
.standard-meta dd{margin:0;font-family:var(--ui);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--navy)}
.standard-meta a{text-decoration:none;color:var(--gold);font-weight:700}
.standard-document{counter-reset:standard-section;background:rgba(255,250,242,.38)}
.standard-block{border-top:1px solid var(--line);padding:28px 0}
.standard-block:first-child{border-top:0;padding-top:0}
.standard-block h2{font-family:var(--ui);font-size:12px;line-height:1.35;letter-spacing:.18em;text-transform:uppercase;color:var(--navy);font-weight:700;margin-bottom:12px}
.standard-block p{font-size:21px;line-height:1.55;margin:0;color:var(--muted)}
.standard-block.abstract{border:1px solid var(--line2);padding:24px 26px;background:rgba(255,250,242,.8);margin-bottom:26px}
.standard-list,.failure-list{margin:16px 0 0;padding-left:24px;display:grid;gap:11px}
.standard-list li,.failure-list li{font-size:20px;line-height:1.45;color:var(--muted);padding-left:8px}
.standard-list li::marker{font-family:var(--ui);font-size:13px;color:var(--gold);font-weight:700}
.failure-list li::marker{color:var(--gold)}
.standard-note{font-family:var(--ui);font-size:11px;line-height:1.7;letter-spacing:.1em;text-transform:uppercase;color:var(--soft);border-top:1px solid var(--line);padding-top:20px;margin-top:28px}
.registry-table.standards-index th{border-bottom:2px solid var(--navy);color:var(--navy)}
.registry-table.standards-index td:first-child span{font-family:var(--ui);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);font-weight:700;white-space:nowrap}
@media(max-width:920px){.standard-meta{grid-template-columns:repeat(2,1fr)}.standard-meta div:nth-child(2){border-right:0}.standard-meta div{border-bottom:1px solid var(--line)}}
@media(max-width:620px){.standard-meta{grid-template-columns:1fr}.standard-meta div{border-right:0}.registry-table{display:block;overflow-x:auto}.standard-block p,.standard-list li,.failure-list li{font-size:19px}}
body.standards,body.problem{background:#fff;color:#17202a;font-family:Arial,"Helvetica Neue",sans-serif}
body.standards .topline,body.problem .topline{background:#f5f7fa;color:#334155;border-bottom:1px solid #d8dee7;text-align:left;font-size:10px;letter-spacing:.12em;padding:8px 32px}
body.standards header,body.problem header{position:relative;background:#fff;border-bottom:1px solid #d8dee7;box-shadow:none;backdrop-filter:none}
body.standards .nav,body.problem .nav{max-width:1120px;padding:15px 32px}
body.standards .brand strong,body.problem .brand strong{color:#111827;letter-spacing:.14em}
body.standards .brand span,body.problem .brand span{color:#526070}
body.standards nav a,body.problem nav a{color:#334155}
body.standards .button,body.problem .button{min-height:36px;background:#fff;color:#005a9c;border-color:#005a9c;letter-spacing:.1em;padding:10px 16px}
body.standards .button:hover,body.problem .button:hover{background:#005a9c;color:#fff}
.standard-page{background:#fff;color:#17202a}
.spec-container{max-width:1040px}
.spec-head{padding:34px 0 22px;border-bottom:1px solid #d8dee7;background:#fff}
.spec-kicker{font-family:Arial,"Helvetica Neue",sans-serif;font-size:12px;line-height:1.35;letter-spacing:.04em;text-transform:none;color:#5b6673;font-weight:700;margin:0 0 10px}
.spec-head h1{font-family:Arial,"Helvetica Neue",sans-serif;font-size:clamp(34px,4.1vw,52px);line-height:1.08;letter-spacing:-.025em;color:#111827;max-width:760px;margin:0 0 8px;font-weight:700}
.spec-status{font-family:Arial,"Helvetica Neue",sans-serif;font-size:15px;line-height:1.45;color:#334155;margin:0 0 18px}.spec-status a{color:#005a9c;text-decoration:underline;text-underline-offset:2px}
.spec-metadata{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid #d8dee7;background:#f8fafc;margin:0;max-width:920px}
.spec-metadata div{display:grid;grid-template-columns:136px minmax(0,1fr);gap:12px;border-bottom:1px solid #d8dee7;padding:9px 12px}.spec-metadata div:nth-last-child(-n+2){border-bottom:0}.spec-metadata dt{font-family:Arial,"Helvetica Neue",sans-serif;font-size:12px;line-height:1.35;font-weight:700;color:#111827}.spec-metadata dd{margin:0;font-family:Arial,"Helvetica Neue",sans-serif;font-size:12px;line-height:1.35;color:#334155;overflow-wrap:anywhere}.spec-metadata a{color:#005a9c;text-decoration:underline;text-underline-offset:2px}
.spec-layout{display:grid;grid-template-columns:215px minmax(0,760px);gap:34px;align-items:start;padding-top:28px;padding-bottom:50px}
.spec-toc{position:sticky;top:18px;border-left:4px solid #d8dee7;background:#f8fafc;padding:13px 14px;font-family:Arial,"Helvetica Neue",sans-serif}.spec-toc h2{font-family:Arial,"Helvetica Neue",sans-serif;font-size:14px;text-transform:none;letter-spacing:0;color:#111827;font-weight:700;margin:0 0 9px}.spec-toc ol{margin:0;padding-left:18px;display:grid;gap:7px}.spec-toc .spec-toc-list{list-style:none;padding-left:0}.spec-toc li{font-size:13px;line-height:1.35;color:#334155}.spec-toc a{color:#005a9c;text-decoration:underline;text-underline-offset:2px}
.spec-body{max-width:760px}.spec-section{border-top:1px solid #d8dee7;padding:22px 0}.spec-section:first-child{border-top:0;padding-top:1px}.spec-section h2{font-family:Arial,"Helvetica Neue",sans-serif;font-size:20px;line-height:1.25;letter-spacing:0;text-transform:none;color:#111827;font-weight:700;margin:0 0 10px}.spec-section h2 span{color:#5b6673;font-weight:700}.spec-section p{font-family:Georgia,"Times New Roman",serif;font-size:17px;line-height:1.68;color:#1f2937;margin:0}.spec-section a{color:#005a9c;text-decoration:underline;text-underline-offset:2px}.spec-abstract{border:1px solid #cfd8e3;background:#f8fafc;padding:18px 20px;margin:1px 0 4px;box-shadow:inset 0 1px 0 #fff}.spec-list{margin:10px 0 0;padding-left:25px;display:grid;gap:8px}.spec-list li{font-family:Georgia,"Times New Roman",serif;font-size:17px;line-height:1.58;color:#1f2937;padding-left:3px}.spec-list li::marker{color:#111827;font-weight:700}.spec-note{font-family:Arial,"Helvetica Neue",sans-serif;font-size:12px;line-height:1.55;color:#526070;border-top:2px solid #d8dee7;margin-top:14px;padding-top:13px;text-transform:none;letter-spacing:0}
body.standards .registry-table,body.problem .registry-table{font-family:Arial,"Helvetica Neue",sans-serif;border-collapse:separate;border-spacing:0;margin:14px 0;width:100%;background:#fff;border:1px solid #cfd8e3}body.standards .registry-table th,body.problem .registry-table th{font-family:Arial,"Helvetica Neue",sans-serif;font-size:12px;letter-spacing:0;text-transform:none;color:#111827;background:#f1f5f9;border:0;border-right:1px solid #d8dee7;border-bottom:1px solid #d8dee7;padding:9px 10px;text-align:left}body.standards .registry-table th:last-child,body.problem .registry-table th:last-child{border-right:0}body.standards .registry-table td,body.problem .registry-table td{font-family:Arial,"Helvetica Neue",sans-serif;font-size:14px;line-height:1.45;color:#1f2937;border:0;border-right:1px solid #d8dee7;border-bottom:1px solid #d8dee7;padding:10px;vertical-align:top}body.standards .registry-table td:last-child,body.problem .registry-table td:last-child{border-right:0}body.standards .registry-table tr:last-child td,body.problem .registry-table tr:last-child td{border-bottom:0}body.standards .registry-table a,body.problem .registry-table a{color:#005a9c;text-decoration:underline;text-underline-offset:2px}body.standards .registry-table.standards-index td:first-child span,body.problem .registry-table.standards-index td:first-child span{font-family:Arial,"Helvetica Neue",sans-serif;font-size:13px;letter-spacing:0;text-transform:none;color:#111827;font-weight:700;white-space:nowrap}
body.standards .spec-container{max-width:1120px}body.standards .spec-layout{grid-template-columns:170px minmax(0,900px);gap:28px}body.standards .spec-body{max-width:none}body.standards .standards-index th:nth-child(1){width:132px}body.standards .standards-index th:nth-child(2){width:210px}body.standards .standards-index th:nth-child(3){width:150px}body.standards .standards-index td:nth-child(2),body.standards .standards-index td:nth-child(3){white-space:nowrap}
body.standards footer,body.problem footer{background:#f8fafc;color:#334155;border-top:1px solid #d8dee7;padding-top:38px;padding-bottom:38px}body.standards footer p,body.problem footer p{color:#526070;font-family:Arial,"Helvetica Neue",sans-serif;font-size:14px;line-height:1.55}body.standards footer a,body.problem footer a{color:#005a9c}
@media(max-width:920px){.spec-layout,body.standards .spec-layout{grid-template-columns:1fr;gap:22px}.spec-toc{position:relative;top:auto}.spec-metadata{grid-template-columns:1fr}.spec-metadata div{grid-template-columns:130px minmax(0,1fr)}.spec-metadata div:nth-last-child(-n+2){border-bottom:1px solid #d8dee7}.spec-metadata div:last-child{border-bottom:0}body.standards .standards-index td:nth-child(2),body.standards .standards-index td:nth-child(3){white-space:normal}}
@media(max-width:620px){body.standards .topline,body.problem .topline{padding-left:22px;padding-right:22px}.spec-head h1{font-size:32px}.spec-section p,.spec-list li{font-size:16.5px}.spec-layout{padding-top:22px}.spec-metadata div{grid-template-columns:1fr;gap:3px}.spec-toc{border-left:0;border-top:4px solid #d8dee7}.spec-container{padding-left:22px;padding-right:22px}}