:root{--bg:#0b0e12;--panel:#141a21;--line:#283441;--text:#e9eef3;--dim:#8a98a8;--accent:#16d27a;--accent-dark:#0f9a59;--warn:#ffb020}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:16px}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.55;-webkit-text-size-adjust:100%}
a{color:var(--accent)}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-bottom:1px solid var(--line);background:var(--bg)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;font-size:14px;color:var(--text);text-decoration:none}
.brand .dot{width:12px;height:12px;border-radius:3px;background:var(--accent)}
.top-actions{display:flex;align-items:center;gap:16px}
.back{font-size:14px;font-weight:700;color:var(--text);text-decoration:none}
.pdf{font-size:14px;font-weight:700;color:var(--bg);background:var(--accent);padding:8px 14px;border-radius:8px;text-decoration:none;white-space:nowrap}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.layout{max-width:1180px;margin:0 auto;padding:0 20px 60px}
.hero{padding:34px 0 10px}
.hero h1{font-size:clamp(28px,5vw,44px);line-height:1.08;margin:0 0 10px;font-weight:800;letter-spacing:-.02em}
.hero h1 span{color:var(--accent)}
.hero p{color:var(--dim);margin:0;max-width:640px}
.sim-link{display:inline-block;margin-top:18px;padding:10px 16px;border-radius:9px;background:var(--accent);color:var(--bg);font-size:14px;font-weight:800;text-decoration:none}
.sim-link:hover{background:#37e592}
nav.index{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:22px 0}
nav.index h2{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--dim);margin:0 0 8px}
nav.index ol{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:2px 16px}
nav.index a{display:flex;gap:10px;padding:6px 0;color:var(--text);text-decoration:none;font-size:15px}
nav.index a b{color:var(--accent);min-width:20px}
nav.index a:hover{color:var(--accent)}
@media (min-width:1024px){
  .layout{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start}
  .hero{grid-column:1/-1}
  nav.index{position:sticky;top:16px;margin:0}
  nav.index ol{grid-template-columns:1fr}
  nav.index a{font-size:14px;padding:5px 0}
}
main{min-width:0}
.intro,.sec-block{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 22px 10px;margin:0 0 22px}
h2.sec{display:flex;align-items:center;gap:12px;font-size:24px;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
h2.sec .n{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;border-radius:10px;background:var(--bg);color:var(--accent);font-size:18px;border:1px solid var(--line)}
h3{font-size:18px;margin:22px 0 8px}
h3.first{margin-top:0}
h3 .n{color:var(--accent);margin-right:6px}
p{margin:0 0 12px}
.lead{font-size:17px}
ul,ol{margin:0 0 14px;padding-left:22px}
li{margin:0 0 6px}
ol.steps{counter-reset:s;list-style:none;padding-left:0}
ol.steps>li{counter-increment:s;position:relative;padding-left:36px;margin-bottom:10px}
ol.steps>li::before{content:counter(s);position:absolute;left:0;top:0;width:24px;height:24px;border-radius:50%;background:var(--accent);color:var(--bg);font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}
.ui{font-weight:700;color:#fff;white-space:nowrap}
.k{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px;background:var(--bg);border:1px solid var(--line);border-radius:5px;padding:1px 6px}
.row{display:grid;grid-template-columns:1fr 280px;gap:24px;align-items:start;margin:8px 0 16px}
.row.mid{grid-template-columns:1fr 360px}
figure{margin:0 0 16px}
figure img{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--line);background:#000}
figure.wide{margin:12px 0 18px}
figcaption{font-size:13px;color:var(--dim);margin-top:6px}
.note,.warn{border-radius:10px;padding:12px 16px;margin:12px 0 16px;font-size:15px}
.note{background:rgba(22,210,122,.08);border-left:3px solid var(--accent)}
.warn{background:rgba(255,176,32,.09);border-left:3px solid var(--warn)}
.note b.t,.warn b.t{display:block;margin-bottom:4px}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;margin:8px 0 16px;font-size:15px}
th{background:var(--bg);color:var(--dim);text-align:left;font-weight:700;padding:8px 10px;font-size:13px;text-transform:uppercase;letter-spacing:.04em}
td{padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.flow-line{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:8px 0 12px}
.flow-line span{background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:4px 10px;font-weight:700;font-size:14px}
.flow-line i{color:var(--accent);font-style:normal;font-weight:800}
ul.check{list-style:none;padding-left:0}
ul.check li{position:relative;padding-left:28px}
ul.check li::before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border:2px solid var(--accent);border-radius:4px}
.totop{display:inline-block;margin:4px 0 0;font-size:13px;color:var(--dim);text-decoration:none}
footer{color:var(--dim);font-size:13px;border-top:1px solid var(--line);padding:18px 20px;text-align:center}
@media (max-width:820px){
  .row,.row.mid{grid-template-columns:1fr}
  .row figure{max-width:420px}
  .intro,.sec-block{padding:18px 16px 6px;border-radius:12px}
  h2.sec{font-size:21px}
  .layout{padding:0 12px 40px}
  .top{padding:12px}
}

@media (max-width:600px){
  .top{flex-wrap:wrap}
  .top-actions{width:100%;justify-content:space-between;gap:10px}
}

figure.modal{max-width:560px}