:root{--black:#1d1d1f;--white:#fff;--gray-light:#f5f5f7;--gray-mid:#86868b;--gray-dark:#424245;--accent:#b644e8;--accent-soft:#e9d5ff;--border-subtle:1px solid rgba(0,0,0,.08);--font-system:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue","Helvetica","Arial",sans-serif}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:auto}body{font-family:var(--font-system);background:var(--white);color:var(--black);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.has-navbar{padding-top:var(--navbar-h,64px)}.site-header{background:rgba(255,255,255,.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:var(--border-subtle);position:sticky;top:0;z-index:50;padding:1rem 2rem}.header-container{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.logo-area{display:flex;align-items:center;gap:12px;text-decoration:none}.logo-area img{width:26px;height:26px;display:block}.logo-text{font-weight:700;font-size:1.05rem;letter-spacing:-.01em;background:linear-gradient(135deg,var(--black),var(--accent));background-clip:text;-webkit-background-clip:text;color:transparent}.back-link{color:var(--gray-dark);text-decoration:none;font-size:.88rem;background:var(--gray-light);padding:.5rem 1.1rem;border-radius:40px;transition:.2s;font-weight:500;white-space:nowrap}.back-link:hover{background:var(--accent-soft);color:var(--accent)}.doc-hero{max-width:760px;margin:0 auto;padding:5rem 2rem 2.5rem;text-align:center}.doc-hero__eyebrow{color:var(--accent);letter-spacing:.16em;text-transform:uppercase;font-size:.78rem;font-weight:700;margin-bottom:1rem}.doc-hero h1{font-size:clamp(2.2rem,5vw,3.2rem);font-weight:700;letter-spacing:-.02em;line-height:1.12;margin-bottom:1.1rem}.doc-hero__meta{color:var(--gray-mid);font-size:.9rem}.doc-toc{max-width:760px;margin:0 auto 3.5rem;padding:1.6rem 2rem;background:var(--gray-light);border-radius:22px}.doc-toc h2{font-size:.75rem;text-transform:uppercase;letter-spacing:.09em;color:var(--gray-mid);font-weight:700;margin-bottom:1rem}.doc-toc ol{list-style:none;display:grid;gap:.6rem;counter-reset:toc;grid-template-columns:repeat(2,1fr)}.doc-toc li{counter-increment:toc}.doc-toc a{color:var(--black);text-decoration:none;font-size:.92rem;font-weight:500;display:flex;gap:.6rem;align-items:baseline;transition:color .2s}.doc-toc a:before{content:counter(toc);color:var(--accent);font-weight:700;font-size:.82rem;flex-shrink:0}.doc-toc a:hover{color:var(--accent)}.doc-content{max-width:720px;margin:0 auto;padding:0 2rem 6rem}.doc-content>p:first-of-type{font-size:1.1rem;color:var(--gray-dark);margin-bottom:2.5rem}.doc-content h2{font-size:1.5rem;font-weight:700;letter-spacing:-.01em;margin:3rem 0 1rem;scroll-margin-top:6rem}.doc-content h2:first-of-type{margin-top:0}.doc-content h3{font-size:1.1rem;font-weight:700;margin:2rem 0 .75rem;scroll-margin-top:6rem}.doc-content p{color:var(--gray-dark);font-size:1.02rem;margin-bottom:1.1rem}.doc-content ol,.doc-content ul{margin:0 0 1.1rem;padding-left:0;list-style:none}.doc-content ol li,.doc-content ul li{color:var(--gray-dark);font-size:1.02rem;margin-bottom:.6rem;padding-left:1.6rem;position:relative}.doc-content ul li:before{content:"—";position:absolute;left:0;color:var(--accent)}.doc-content ol{counter-reset:step}.doc-content ol li{counter-increment:step}.doc-content ol li:before{content:counter(step) ".";position:absolute;left:0;color:var(--accent);font-weight:700}.doc-content strong{color:var(--black);font-weight:600}.doc-content a{color:var(--accent);text-decoration-color:var(--accent-soft);text-underline-offset:3px}.doc-content hr{border:none;border-top:var(--border-subtle);margin:2.5rem 0}@media (max-width:640px){.doc-hero{padding:3.5rem 1.5rem 2rem}.doc-toc{margin:0 1.5rem 2.5rem;padding:1.4rem 1.5rem}.doc-toc ol{grid-template-columns:1fr}.doc-content{padding:0 1.5rem 4rem}}