:root{
  --bg:#0c0e12;
  --panel:#14181f;
  --panel-2:#1b212a;
  --edge:#242c37;
  --fg:#eef2f7;
  --dim:#93a0b0;
  --brand:#5b8cff;
  --brand-soft:#2b3b63;
  --good:#39d98a;
  --r:12px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1080px;margin:0 auto;padding:0 20px}

/* header */
.site-head{
  position:sticky;top:0;z-index:20;
  background:rgba(12,14,18,.85);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--edge);
}
.site-head .bar{display:flex;align-items:center;gap:28px;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px;color:var(--fg)}
.brand:hover{text-decoration:none}
.brand .mark{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--brand),#8ab0ff);display:inline-block}
nav.main{display:flex;gap:22px;margin-left:auto}
nav.main a{color:var(--dim);font-size:15px}
nav.main a:hover{color:var(--fg);text-decoration:none}
.btn{
  display:inline-block;padding:9px 16px;border-radius:9px;
  font-size:14px;font-weight:600;border:1px solid transparent;cursor:pointer;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:#4e7ff0;text-decoration:none}
.btn-ghost{border-color:var(--edge);color:var(--fg);background:transparent}
.btn-ghost:hover{border-color:#36414f;text-decoration:none}

/* hero */
.hero{padding:86px 0 64px;border-bottom:1px solid var(--edge)}
.hero h1{font-size:46px;line-height:1.1;margin:0 0 18px;letter-spacing:-.5px}
.hero p.lead{font-size:19px;color:var(--dim);max-width:640px;margin:0 0 30px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.pill{display:inline-block;font-size:13px;color:#aeb9c7;background:var(--panel-2);border:1px solid var(--edge);border-radius:999px;padding:5px 13px;margin-bottom:22px}

/* sections */
section{padding:62px 0}
.sec-title{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin:0 0 10px}
h2{font-size:30px;margin:0 0 10px;letter-spacing:-.3px}
.muted{color:var(--dim)}
.grid{display:grid;gap:18px}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--panel);border:1px solid var(--edge);border-radius:var(--r);padding:22px}
.card h3{margin:0 0 8px;font-size:17px}
.card p{margin:0;color:var(--dim);font-size:15px}
.icon{width:34px;height:34px;border-radius:9px;background:var(--brand-soft);margin-bottom:14px}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:center}
.metrics .n{font-size:34px;font-weight:700}
.metrics .l{color:var(--dim);font-size:14px}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
.plan{background:var(--panel);border:1px solid var(--edge);border-radius:var(--r);padding:26px;display:flex;flex-direction:column}
.plan.feat{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand) inset}
.plan .name{font-size:15px;color:var(--dim);letter-spacing:.06em;text-transform:uppercase}
.plan .amt{font-size:38px;font-weight:700;margin:12px 0 2px}
.plan .amt small{font-size:15px;color:var(--dim);font-weight:400}
.plan ul{list-style:none;padding:0;margin:18px 0 24px}
.plan li{padding:7px 0;color:#c4ccd6;font-size:15px;border-bottom:1px solid var(--edge)}
.plan li:last-child{border-bottom:0}
.plan .btn{margin-top:auto;text-align:center}

/* docs */
.doc-wrap{display:grid;grid-template-columns:220px 1fr;gap:30px}
.doc-nav{position:sticky;top:90px;align-self:start}
.doc-nav a{display:block;padding:6px 0;color:var(--dim);font-size:14px}
.doc-nav a:hover{color:var(--fg);text-decoration:none}
.doc h3{margin:34px 0 8px;font-size:20px}
.doc h3:first-child{margin-top:0}
pre{background:#0a0c10;border:1px solid var(--edge);border-radius:10px;padding:16px 18px;overflow:auto;font-family:var(--mono);font-size:13.5px;line-height:1.55;color:#cdd6e2}
code{font-family:var(--mono);font-size:.92em;background:var(--panel-2);padding:1px 6px;border-radius:5px}
pre code{background:none;padding:0}
.method{display:inline-block;font-family:var(--mono);font-size:12px;font-weight:700;padding:2px 8px;border-radius:6px;margin-right:8px}
.m-get{background:#15324a;color:#67b0e8}
.m-post{background:#15402e;color:#5fd59a}
table.params{width:100%;border-collapse:collapse;margin:10px 0}
table.params th,table.params td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--edge);font-size:14px}
table.params th{color:var(--dim);font-weight:600}
table.params td code{font-size:13px}

/* auth */
.auth-shell{min-height:calc(100vh - 62px);display:flex;align-items:center;justify-content:center;padding:40px 20px}
.auth-box{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--edge);border-radius:var(--r);padding:30px}
.auth-box h1{font-size:22px;margin:0 0 4px}
.auth-box p.sub{color:var(--dim);font-size:14px;margin:0 0 22px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--dim);margin-bottom:6px}
.field input{width:100%;padding:11px 12px;background:#0a0c10;border:1px solid var(--edge);border-radius:9px;color:var(--fg);font-size:15px}
.field input:focus{outline:none;border-color:var(--brand)}
.auth-box .btn-primary{width:100%;text-align:center;margin-top:4px}
.auth-err{display:none;background:#3a1b1f;border:1px solid #5c2a30;color:#ff9aa3;font-size:14px;padding:10px 12px;border-radius:9px;margin-bottom:16px}
.auth-foot{text-align:center;color:var(--dim);font-size:13px;margin-top:18px}

/* footer */
.site-foot{border-top:1px solid var(--edge);padding:40px 0;color:var(--dim);font-size:14px}
.site-foot .cols{display:flex;gap:60px;flex-wrap:wrap;margin-bottom:28px}
.site-foot h4{color:var(--fg);font-size:14px;margin:0 0 12px}
.site-foot a{display:block;color:var(--dim);padding:4px 0}
.site-foot a:hover{color:var(--fg);text-decoration:none}
.site-foot .legal{border-top:1px solid var(--edge);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* 404 */
.err-shell{min-height:calc(100vh - 62px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px}
.err-shell .big{font-size:88px;font-weight:800;color:var(--brand);line-height:1}
.err-shell h1{font-size:24px;margin:14px 0 8px}

@media(max-width:860px){
  .grid.c3,.grid.c4,.price-grid,.metrics{grid-template-columns:1fr 1fr}
  .doc-wrap{grid-template-columns:1fr}
  .doc-nav{display:none}
  nav.main{display:none}
  .hero h1{font-size:34px}
}
@media(max-width:520px){
  .grid.c3,.grid.c4,.price-grid,.metrics{grid-template-columns:1fr}
}