:root{
  --ink:#0D0F11;
  --ink-2:#15181B;
  --line-dark:rgba(255,255,255,.09);
  --paper:#F5F3EE;
  --paper-2:#ECE9E2;
  --line:#DAD6CD;
  --text:#1A1D20;
  --muted:#5E625F;
  --muted-dark:#9A9D9F;
  --yellow:#FFCC00;
  --amber:#F9A602;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:100px}
body{font-family:Inter,system-ui,sans-serif;background:var(--paper);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
h1,h2,h3{font-family:Sora,Inter,sans-serif;font-weight:600;letter-spacing:-.02em;line-height:1.15}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}

/* Header */
.l-nav{position:sticky;top:0;z-index:20;background:rgba(13,15,17,.94);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-dark)}
.l-nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.l-nav img{height:30px;width:auto}
.l-nav a.back{font-family:Sora,sans-serif;font-size:14px;font-weight:500;color:rgba(255,255,255,.75);text-decoration:none;display:inline-flex;align-items:center;gap:8px;transition:color .2s}
.l-nav a.back:hover{color:var(--yellow)}
.l-nav a.back svg{width:16px;height:16px}

/* Hero */
.l-hero{background:var(--ink);color:#fff;padding:90px 0 80px;position:relative;overflow:hidden}
.l-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 85% 20%,rgba(249,166,2,.12),transparent 60%);pointer-events:none}
.eyebrow{font-family:Sora,sans-serif;font-size:12px;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--amber);display:inline-flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:28px;height:1px;background:currentColor}
.l-hero h1{font-size:clamp(36px,5vw,60px);margin:22px 0 18px;position:relative}
.l-hero p{color:var(--muted-dark);font-size:17px;max-width:640px;position:relative}
.l-meta{display:flex;gap:36px;flex-wrap:wrap;margin-top:40px;padding-top:26px;border-top:1px solid var(--line-dark);font-size:13px;color:var(--muted-dark);position:relative}
.l-meta strong{display:block;color:#fff;font-family:Sora,sans-serif;font-weight:500;font-size:14px}

/* Body */
.l-body{display:grid;grid-template-columns:260px 1fr;gap:80px;padding:80px 0 120px}
.toc{position:sticky;top:112px;align-self:start}
.toc h4{font-family:Sora,sans-serif;font-size:11px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.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 18px;margin-left:-1px;border-left:2px solid transparent;font-size:14px;color:var(--muted);text-decoration:none;transition:color .2s,border-color .2s}
.toc a::before{content:counter(t,decimal-leading-zero) "  ";font-family:Sora,sans-serif;font-size:11px;color:var(--amber);margin-right:6px}
.toc a:hover,.toc a.active{color:var(--text);border-left-color:var(--yellow)}

.doc{max-width:760px}
.doc section{padding-bottom:44px;margin-bottom:44px;border-bottom:1px solid var(--line)}
.doc section:last-child{border-bottom:0;margin-bottom:0}
.doc h2{font-size:26px;margin-bottom:20px;display:flex;gap:16px;align-items:baseline}
.doc h2 .n{font-family:Sora,sans-serif;font-size:13px;font-weight:500;color:var(--amber);letter-spacing:.1em;flex:none}
.doc h3{font-size:17px;margin:28px 0 10px}
.doc p,.doc li{font-size:16px;color:#35393C}
.doc p+p{margin-top:14px}
.doc ul{margin:14px 0 0 0;padding-left:0;list-style:none}
.doc ul li{position:relative;padding-left:22px;margin-bottom:8px}
.doc ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;background:var(--amber);border-radius:2px;transform:rotate(45deg)}
.doc a{color:var(--text);text-decoration:underline;text-decoration-color:var(--amber);text-underline-offset:3px;text-decoration-thickness:1.5px}
.doc a:hover{color:var(--amber)}
.doc strong{font-weight:600;color:var(--text)}

.ident{font-size:13px!important;line-height:1.7;color:var(--muted)!important;margin-top:14px;padding-left:14px;border-left:2px solid var(--line)}
.ident a{color:var(--muted)!important;text-decoration-color:var(--line)!important}

.tbl{width:100%;border-collapse:separate;border-spacing:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-top:18px;font-size:14.5px}
.tbl th{font-family:Sora,sans-serif;font-weight:500;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);text-align:left;background:#FBFAF7;padding:14px 18px;border-bottom:1px solid var(--line)}
.tbl td{padding:15px 18px;border-bottom:1px solid var(--line);vertical-align:top;color:#35393C}
.tbl tr:last-child td{border-bottom:0}
.tbl code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;background:var(--paper-2);padding:2px 7px;border-radius:5px;color:var(--text)}
.tbl-wrap{overflow-x:auto}

.note{margin-top:22px;background:var(--ink);color:#D9DADB;border-radius:14px;padding:22px 26px;font-size:14.5px;display:flex;gap:16px}
.note svg{width:22px;height:22px;flex:none;color:var(--yellow);margin-top:2px}
.note p{color:#D9DADB;font-size:14.5px}

.btn{display:inline-flex;align-items:center;gap:10px;font-family:Sora,sans-serif;font-weight:500;font-size:15px;padding:14px 26px;border-radius:999px;border:0;cursor:pointer;background:var(--ink);color:#fff;transition:all .3s var(--ease);margin-top:22px;text-decoration:none}
.btn:hover{background:var(--yellow);color:var(--ink)}

/* Footer */
footer{background:#08090A;color:var(--muted-dark);padding:44px 0;font-size:14px}
footer .wrap{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
footer nav{display:flex;gap:26px;flex-wrap:wrap}
footer a{text-decoration:none;transition:color .2s}
footer a:hover,footer a[aria-current]{color:var(--yellow)}

@media (max-width:960px){
  .l-body{grid-template-columns:1fr;gap:40px;padding-top:50px}
  .toc{position:static;background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px}
}
@media (max-width:600px){
  .wrap{padding:0 20px}
  .l-hero{padding:60px 0 56px}
  .doc h2{font-size:22px;flex-direction:column;gap:6px}
  .tbl{font-size:13.5px;min-width:560px}
}