:root{--ink:#111;--ink-2:#1b1b1b;--paper:#fff;--paper-2:#f5f5f3;--text:#222;--muted:#5d5d5d;--line:#e4e4e1;--silver-2:#8e8e8e}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:Inter,Arial,Helvetica,sans-serif;color:var(--text);background:var(--paper-2);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
h1,h2{font-family:"Cormorant Garamond",Georgia,serif;font-weight:600;line-height:1.15;color:var(--ink)}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(17,17,17,.96);border-bottom:1px solid #262626}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.top img{height:42px;display:block}
.top nav{display:flex;align-items:center;gap:22px}
.top nav a{color:#d8d8d8;text-decoration:none;font-size:14px}
.top nav a:hover{color:#fff}
.btn{display:inline-block;padding:10px 18px;border-radius:2px;font-weight:600;font-size:14px;text-decoration:none;transition:.2s}
.btn-silver{background:linear-gradient(135deg,#f4f4f4,#bdbdbd 55%,#e9e9e9);color:#111!important}
.btn-silver:hover{filter:brightness(1.06)}
.btn-ghost{border:1px solid #6b6b6b;color:#eaeaea!important}

/* hero */
.hero{background:radial-gradient(1100px 460px at 82% -20%,#2e2e2e 0%,var(--ink) 62%);color:#cfcfcf;padding:64px 0 0;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-140px;top:-160px;width:460px;height:460px;border:1px solid rgba(255,255,255,.06);border-radius:50%}
.eyebrow{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:#9a9a9a;font-weight:600;margin-bottom:10px}
.hero h1{color:#fff;font-size:clamp(38px,5.5vw,58px);margin-bottom:14px}
.hero h1 span{background:linear-gradient(90deg,#fff,#a9a9a9 55%,#f2f2f2);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.intro{max-width:640px;color:#bdbdbd;font-size:17px}
.meta{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 40px}
.meta span{border:1px solid #333;padding:6px 12px;font-size:12px;letter-spacing:.06em;color:#bdbdbd;border-radius:2px}
.tabs{display:flex;gap:4px}
.tabs a{padding:14px 22px;text-decoration:none;font-size:14px;font-weight:600;color:#a9a9a9;border-top:2px solid transparent}
.tabs a:hover{color:#fff}
.tabs a.on{background:var(--paper-2);color:var(--ink);border-top-color:#9a9a9a}

/* layout */
.body{display:grid;grid-template-columns:240px 1fr;gap:48px;padding:56px 20px 80px}
.toc{position:sticky;top:100px;align-self:start}
.toc p{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--silver-2);font-weight:600;margin-bottom:12px}
.toc ol{list-style:none;counter-reset:t;border-left:1px solid var(--line)}
.toc li{counter-increment:t}
.toc a{display:block;padding:7px 0 7px 16px;margin-left:-1px;border-left:2px solid transparent;text-decoration:none;color:var(--muted);font-size:14px;line-height:1.4}
.toc a:before{content:counter(t,decimal-leading-zero) "  ";color:#b0b0b0;font-size:12px}
.toc a:hover{color:var(--ink);border-left-color:var(--ink)}

.sec{background:#fff;border:1px solid var(--line);padding:30px 34px;margin-bottom:16px;counter-increment:s}
.content{counter-reset:s}
.sec .n{font-family:"Cormorant Garamond",serif;font-size:15px;letter-spacing:.12em;color:var(--silver-2);margin-bottom:4px}
.sec .n:before{content:counter(s,decimal-leading-zero)}
.sec h2{font-size:27px;margin-bottom:10px}
.sec p,.sec li{color:#4a4a4a;font-size:15.5px}
.sec p+p{margin-top:10px}
.sec ul{list-style:none;margin-top:4px}
.sec ul li{padding:8px 0 8px 26px;position:relative;border-bottom:1px solid #f0f0ee}
.sec ul li:last-child{border-bottom:0}
.sec ul li:before{content:"";position:absolute;left:0;top:19px;width:12px;height:2px;background:#9a9a9a}
.sec a{color:var(--ink);text-underline-offset:3px}
.callout{background:var(--paper-2);border-left:3px solid var(--ink);padding:14px 18px;margin-top:14px;font-size:15px;color:var(--text)}

.dpo{background:var(--ink);border-color:var(--ink);color:#cfcfcf}
.dpo h2{color:#fff}.dpo p{color:#bdbdbd}
.dpo-card{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;margin-top:18px;padding-top:18px;border-top:1px solid #2c2c2c}
.mono{width:64px;height:64px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 30% 25%,#3a3a3a,#0d0d0d 70%);font-family:"Cormorant Garamond",serif;font-size:26px;font-weight:600;color:#e6e6e6}
.dpo-card b{display:block;color:#fff;font-size:17px}
.dpo-card small{color:#9a9a9a;letter-spacing:.08em;text-transform:uppercase;font-size:11px}
.dpo-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:6px}
.dpo-links a{color:#e6e6e6;font-size:15px}

.cta{background:var(--ink);color:#cfcfcf;padding:50px 0}
.cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:32px}
.cta p{color:#a9a9a9}
.cta .btns{display:flex;gap:10px;flex-wrap:wrap}
footer{background:#0b0b0b;color:#7d7d7d;font-size:13px;padding:26px 0}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px 24px}
footer a{color:#a5a5a5;text-decoration:none}
footer a:hover{color:#fff}

@media (max-width:900px){
  .top nav a.hide-m{display:none}
  .body{grid-template-columns:1fr;gap:24px;padding-top:32px}
  .toc{position:static;background:#fff;border:1px solid var(--line);padding:18px 20px}
  .sec{padding:24px 22px}
}
@media (max-width:480px){.top img{height:34px}.tabs a{padding:12px 14px}.dpo-card{grid-template-columns:1fr}}
/* Sterling theme accents */
:root{--metal:linear-gradient(135deg,#8c8c90 0%,#f4f4f5 20%,#a8a8ac 42%,#ffffff 58%,#8a8a8e 82%,#d4d4d7 100%);--metal-text:linear-gradient(100deg,#9a9a9e 0%,#ffffff 30%,#b9b9bd 55%,#f2f2f3 75%,#8f8f93 100%);--metal-dark:linear-gradient(100deg,#2a2a2e 0%,#6a6a70 35%,#1e1e22 60%,#58585e 100%)}
body{background:repeating-linear-gradient(90deg,rgba(255,255,255,.28) 0 1px,rgba(0,0,0,0) 1px 3px),linear-gradient(180deg,#f3f3f4,#e2e2e5)}
.top{border-bottom:0}
.top:after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,#8d8d91 30%,#fff 50%,#8d8d91 70%,transparent)}
.btn-silver{background:var(--metal);box-shadow:inset 0 1px 0 rgba(255,255,255,.8)}
.hero{background:radial-gradient(900px 460px at 85% -10%,#2f2f33,rgba(10,10,11,0) 60%),#0a0a0b}
.hero h1 span{background:var(--metal-text);-webkit-background-clip:text;background-clip:text}
.tabs a.on{background:#f3f3f4;border-top:2px solid #cfcfd2}
.sec{position:relative;border-color:#cdcdd1;background:linear-gradient(180deg,#fff,#f7f7f8)}
.sec:before{content:"";position:absolute;left:0;top:0;right:0;height:3px;background:var(--metal)}
.sec h2{background:var(--metal-dark);-webkit-background-clip:text;background-clip:text;color:transparent}
.dpo{background:linear-gradient(180deg,#1d1d20,#121214);border-color:#2c2c30}
.dpo h2{background:var(--metal-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.mono{color:transparent;background:radial-gradient(circle at 30% 25%,#3a3a3e,#0b0b0c 70%)}
.cta{background:radial-gradient(800px 360px at 80% 0%,#26262a,#0a0a0b 65%)}
.cta h2{background:var(--metal-text);-webkit-background-clip:text;background-clip:text;color:transparent}
footer{background:#070708;border-top:1px solid #2c2c30}
.mono .mt{background:var(--metal-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.dpo-photo{width:64px;height:64px;object-fit:cover;display:block;padding:2px;background:var(--metal)}