:root{
  --bg:#07111f;--panel:#101d2d;--panel2:#142439;--text:#f4f8fc;
  --muted:#b8c7d8;--accent:#00d8ff;--accent2:#1fce6d;--line:#29405a;
  --warn:#ffb347;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#06101d,#091728 55%,#06101d);
 color:var(--text);font-family:Arial,Helvetica,sans-serif;line-height:1.65}
a{color:var(--accent)}
.container{width:min(1080px,calc(100% - 32px));margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(6,16,29,.94);
 border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{text-decoration:none;color:#fff;font-weight:800;display:flex;align-items:center;gap:10px}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;
 background:var(--accent);color:#002432;font-weight:900}
nav{display:flex;gap:14px;flex-wrap:wrap}
nav a{text-decoration:none;color:#dcecff;font-weight:700;font-size:.94rem}
.hero{padding:58px 0 34px;background:radial-gradient(circle at 15% 0,rgba(0,216,255,.18),transparent 42%)}
.eyebrow{color:var(--accent);font-weight:800;letter-spacing:.08em;text-transform:uppercase}
h1{font-size:clamp(2rem,5vw,3.6rem);line-height:1.08;margin:.3rem 0 1rem}
h2{margin-top:0}
.subtitle{max-width:800px;color:var(--muted);font-size:1.12rem}
main{padding:28px 0 55px}
.panel,.card{background:linear-gradient(180deg,var(--panel2),var(--panel));
 border:1px solid var(--line);border-radius:20px;padding:24px;margin:18px 0;
 box-shadow:0 15px 40px rgba(0,0,0,.22)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{margin:0}
.card h3{margin-top:0}
.button{display:inline-block;text-decoration:none;padding:11px 15px;border-radius:13px;
 border:1px solid var(--accent);font-weight:800;margin:4px 6px 4px 0}
.button.primary{background:var(--accent);color:#002432}
.notice{border-left:4px solid var(--accent2);background:rgba(31,206,109,.08);
 padding:14px 16px;border-radius:12px;margin:16px 0}
.warning{border-left-color:var(--warn);background:rgba(255,179,71,.08)}
.flow{font-family:ui-monospace,Consolas,monospace;white-space:pre-wrap;background:#07111f;
 border:1px solid var(--line);border-radius:16px;padding:18px;overflow:auto}
table{width:100%;border-collapse:collapse;margin:16px 0;background:#0b1725}
th,td{padding:12px;border:1px solid var(--line);text-align:left}
th{background:#14263b}
.breadcrumb{font-size:.92rem;color:var(--muted);margin-bottom:12px}
.pager{display:flex;justify-content:space-between;gap:12px;margin-top:25px;flex-wrap:wrap}
footer{border-top:1px solid var(--line);padding:28px 0;color:var(--muted);text-align:center}
small.source{display:block;color:var(--muted);margin-top:20px}
code{background:#06101d;padding:.15em .4em;border-radius:6px}
ul.checks{list-style:none;padding:0}
ul.checks li{padding:5px 0}
ul.checks li::before{content:"✓ ";color:var(--accent2);font-weight:900}
@media(max-width:760px){.nav{align-items:flex-start;flex-direction:column}.grid,.grid3{grid-template-columns:1fr}nav{gap:10px}.hero{padding-top:35px}}