*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#0A0A0A;--charcoal:#141414;--panel:#1A1A1A;
  --border:rgba(255,255,255,0.08);--border-hover:rgba(255,255,255,0.2);
  --mid:#5A5A5A;--muted:#8A8A8A;--light:#C8C4BC;--white:#FFFFFF;
  --ease:cubic-bezier(0.16,1,0.3,1);
}
html{scroll-behavior:smooth;overflow-x:hidden}
body{background:var(--black);color:var(--white);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased;line-height:1.7;overflow-x:hidden}
.serif{font-family:'EB Garamond',serif}
a{color:inherit;text-decoration:none}

/* ── Nav ── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:0 48px;height:72px;display:flex;align-items:center;justify-content:space-between;background:rgba(10,10,10,0.95);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.nav-logo{font-family:'EB Garamond',serif;font-size:18px;letter-spacing:5px;text-transform:uppercase;display:flex;align-items:center;gap:12px;color:var(--white)}
.nav-logo img{width:26px;height:26px;display:block}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{font-size:12px;font-weight:500;letter-spacing:0.5px;color:var(--muted);text-decoration:none;transition:color 250ms}
.nav-links a:hover{color:var(--white)}
.nav-cta{font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;padding:9px 22px;border:1px solid rgba(255,255,255,0.2);color:var(--white);background:transparent;cursor:pointer;transition:all 250ms;text-decoration:none}
.nav-cta:hover{background:var(--white);color:var(--black)}

/* ── Dropdown ── */
.nd{position:relative;display:inline-flex;align-items:center}
.ndt{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:500;letter-spacing:0.5px;color:var(--muted);background:none;border:none;padding:0;cursor:pointer;font-family:inherit;white-space:nowrap;position:relative}
.ndt::after{content:'';position:absolute;bottom:-3px;left:0;width:0;height:1px;background:#fff;transition:width 250ms}
.ndt:hover,.nd.open .ndt{color:#fff}
.ndt:hover::after,.nd.open .ndt::after{width:100%}
.ndt svg{width:9px;height:5px;flex-shrink:0;transition:transform 220ms;overflow:visible;display:block}
.nd.open .ndt svg{transform:rotate(180deg)}
.ndp{display:none;position:absolute;top:calc(100% + 22px);left:50%;transform:translateX(-50%);background:#0f0f0f;border:1px solid rgba(255,255,255,0.12);min-width:200px;padding:8px 0;z-index:999;box-shadow:0 16px 48px rgba(0,0,0,0.9)}
.nd.open .ndp{display:block}
.ndp-label{font-size:9px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,0.25);padding:10px 18px 5px;display:block}
.ndp a{display:block;padding:8px 18px;font-size:13px;color:rgba(255,255,255,0.55);text-decoration:none;transition:color 120ms,background 120ms;white-space:nowrap}
.ndp a:hover{color:#fff;background:rgba(255,255,255,0.06)}
.ndp hr{border:none;border-top:1px solid rgba(255,255,255,0.07);margin:6px 0}

/* ── Main ── */
main{padding:120px 80px 100px;max-width:920px;margin:0 auto;overflow-x:hidden}
main a{word-break:break-word}
.crumb{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--muted);margin-bottom:28px}
.crumb a{color:var(--muted);transition:color 250ms}
.crumb a:hover{color:var(--white)}
h1.page-title{font-family:'EB Garamond',serif;font-size:64px;line-height:1.05;letter-spacing:-1.5px;margin-bottom:24px}
h1.page-title em{font-style:italic;color:var(--light)}
.lede{font-size:17px;line-height:1.75;color:var(--light);max-width:680px;margin-bottom:72px}

h2{font-family:'EB Garamond',serif;font-size:32px;margin-bottom:16px;letter-spacing:-0.5px}
h3{font-family:'EB Garamond',serif;font-size:20px;margin-bottom:10px}
section.block{padding:44px 0;border-top:1px solid var(--border)}
section.block:first-of-type{border-top:none;padding-top:0}
section.block p{color:var(--muted);max-width:680px;margin-bottom:14px;font-size:15px}
section.block p strong{color:var(--white);font-weight:500}

ul.bullets{list-style:none;padding:0;margin:18px 0}
ul.bullets li{position:relative;padding-left:18px;margin-bottom:10px;color:var(--muted);font-size:15px;max-width:680px}
ul.bullets li::before{content:'';position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,0.3)}

/* ── Page images ── */
.page-img{width:100%;aspect-ratio:16/7;overflow:hidden;margin-bottom:72px;background:var(--charcoal);border:1px solid var(--border)}
.page-img img{width:100%;height:100%;object-fit:cover;display:block;opacity:0.85;transition:opacity 400ms}
.page-img.placeholder{display:flex;align-items:center;justify-content:center;color:var(--mid);font-size:11px;letter-spacing:2px;text-transform:uppercase}
.section-img{width:100%;aspect-ratio:16/6;overflow:hidden;margin:28px 0;background:var(--charcoal);border:1px solid var(--border)}
.section-img img{width:100%;height:100%;object-fit:cover;display:block;opacity:0.8}

.steps{margin-top:28px}
.step{padding:24px 0;border-top:1px solid var(--border);display:grid;grid-template-columns:56px 1fr;gap:20px}
.step:first-child{border-top:1px solid var(--border)}
.step-num{font-family:'EB Garamond',serif;font-size:20px;color:var(--muted)}
.step h3{margin-bottom:8px}
.step p{margin-bottom:0;color:var(--muted)}

.code{background:var(--panel);border:1px solid var(--border);padding:18px 22px;font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--light);overflow-x:auto;margin:16px 0;white-space:pre-wrap}
.callout{background:var(--charcoal);border-left:2px solid var(--white);padding:24px 28px;margin:24px 0;color:var(--light);font-size:14px}

.cta{margin-top:72px;padding:52px;background:var(--charcoal);border:1px solid var(--border);text-align:center}
.cta h2{margin-bottom:14px}
.cta p{color:var(--muted);margin-bottom:28px;max-width:500px;margin-left:auto;margin-right:auto}
.btn-primary{display:inline-block;background:var(--white);color:var(--black);padding:13px 28px;font-size:11px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;transition:opacity 200ms;cursor:pointer;border:none}
.btn-primary:hover{opacity:0.85}

footer{padding:32px 80px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px;letter-spacing:1px;flex-wrap:wrap;gap:12px}
footer a:hover{color:var(--white)}

/* ── TOC ── */
#page-toc{
  position:fixed;top:120px;right:32px;width:180px;
  display:flex;flex-direction:column;gap:2px;
  z-index:50;
}
.toc-label{font-size:9px;font-weight:600;letter-spacing:2px;text-transform:uppercase;color:rgba(255,255,255,0.25);margin-bottom:10px}
.toc-link{
  display:block;font-size:12px;color:rgba(255,255,255,0.3);
  text-decoration:none;padding:4px 0 4px 12px;
  border-left:1px solid rgba(255,255,255,0.08);
  transition:color 150ms,border-color 150ms;
  line-height:1.4;
}
.toc-link:hover{color:rgba(255,255,255,0.7)}
.toc-link.toc-active{color:var(--white);border-left-color:var(--white)}

@media(max-width:1280px){#page-toc{display:none}}

@media(max-width:900px){
  nav{padding:0 20px}
  .nav-links{display:none !important}
  main{padding:100px 24px 60px}
  h1.page-title{font-size:40px}
  .lede{font-size:15px;margin-bottom:44px}
  h2{font-size:26px}
  .step{grid-template-columns:1fr;gap:8px}
  .cta{padding:36px 20px}
  footer{padding:24px 20px}
}