:root{color-scheme:dark;--bg:#151515;--surface:#1f1f1f;--line:#393939;--line-soft:#2b2b2b;--text:#ededed;--muted:#a6a6a6;--dim:#707070;--red:#AA5E5E;--pur:#915EAA;--grad:linear-gradient(90deg,var(--red),var(--pur));--font:Arial,"Liberation Sans",Helvetica,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font:16px/1.7 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--pur);outline-offset:3px;border-radius:4px}
.wrap{max-width:1120px;margin:0 auto;padding:0 16px}
@media (min-width:720px){.wrap{padding:0 32px}}
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;height:64px;background:rgba(21,21,21,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line-soft)}
.nav .wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.14em;font-size:15px}
.brand svg{width:26px;height:26px}
.btn{display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;border-radius:8px;font-size:14px;font-weight:700;border:1px solid var(--line);background:rgba(255,255,255,.02);transition:background .2s,border-color .2s}
.btn:hover{border-color:#4a4a4a;background:rgba(255,255,255,.05)}
.btn svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.hero{position:relative;padding:72px 0 40px;border-bottom:1px solid var(--line-soft);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(420px 220px at 20% 0%,rgba(170,94,94,.16),transparent 70%),radial-gradient(460px 240px at 55% 0%,rgba(145,94,170,.16),transparent 70%)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.eyebrow i{display:inline-block;width:22px;height:10px;background:var(--grad);transform:skewX(-11.77deg)}
.hero h1{font-size:clamp(32px,5vw,46px);line-height:1.12;margin-top:14px}
.hero p{color:var(--muted);margin-top:10px;font-size:15px}
.layout{display:grid;grid-template-columns:220px 1fr;gap:56px;padding-top:48px;padding-bottom:96px}
@media (max-width:860px){.layout{grid-template-columns:1fr;gap:24px}.toc{position:static!important}}
.toc{position:sticky;top:96px;align-self:start;font-size:14px}
.toc b{display:block;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#cfcfcf;margin-bottom:12px}
.toc ol{list-style:none;display:grid;gap:7px;counter-reset:t}
.toc a{color:var(--dim);transition:color .2s}
.toc a:hover{color:var(--text)}
@media (max-width:860px){.toc{border:1px solid var(--line-soft);border-radius:12px;padding:18px 20px;background:var(--surface)}}
.doc{max-width:720px}
.doc h2{font-size:21px;line-height:1.3;margin:44px 0 12px;scroll-margin-top:88px;display:flex;gap:12px;align-items:baseline}
.doc h2:first-child{margin-top:0}
.doc h2 .num{font-size:13px;font-weight:700;letter-spacing:.06em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.doc h3{font-size:16px;margin:20px 0 6px}
.doc p,.doc li{color:#c9c9c9;font-size:15.5px}
.doc p+p{margin-top:12px}
.doc ul{margin:10px 0 0 20px;display:grid;gap:6px}
.doc li::marker{color:var(--pur)}
.doc a.inline{color:var(--text);border-bottom:1px solid var(--pur)}
.card a.inline{color:var(--text);border-bottom:1px solid var(--pur)}
.doc strong{color:var(--text)}
.note{margin-top:14px;padding:14px 18px;border-radius:10px;border:1px solid var(--line-soft);background:var(--surface);font-size:14.5px;color:var(--muted)}
.ph{color:#e6d4ef;background:rgba(145,94,170,.16);border:1px dashed rgba(145,94,170,.55);border-radius:4px;padding:0 5px;white-space:nowrap}
.card{padding:22px 24px;border-radius:12px;border:1px solid var(--line-soft);background:var(--surface);margin-top:12px}
.card p{margin:0}
footer{border-top:1px solid var(--line-soft);background:#121212;padding:28px 0;font-size:13px;color:var(--dim)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 24px}
footer nav{display:flex;gap:20px;flex-wrap:wrap}
footer nav a:hover,footer nav a[aria-current]{color:var(--text)}