:root{
  --bg:#0b0f1a;
  --bg-2:#111726;
  --panel:#151c2e;
  --ink:#e6ecf7;
  --muted:#8a9bb8;
  --line:#1f2942;
  --accent:#3ddc97;
  --accent-2:#22b07a;
  --warn:#f5a524;
  --shadow:0 12px 40px rgba(0,0,0,.5);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter','Segoe UI',Roboto,system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1140px;margin:0 auto;padding:0 24px}
code{font-family:'JetBrains Mono','Consolas',monospace;background:rgba(61,220,151,.08);color:var(--accent);padding:1px 6px;border-radius:4px;font-size:.9em}

/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(11,15,26,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--ink)}
.brand img{width:30px;height:30px;user-select:none}
.brand:hover{text-decoration:none}
.nav ul{display:flex;gap:26px;list-style:none;margin:0;padding:0}
.nav ul a{color:var(--muted);font-size:14px;font-weight:500}
.nav ul a:hover{color:var(--ink);text-decoration:none}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn{display:inline-block;border-radius:6px;padding:10px 16px;font-weight:600;font-size:14px;border:1px solid transparent;cursor:pointer;transition:all .15s}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{background:var(--panel);text-decoration:none}
.btn-primary{background:var(--accent);color:#06231a}
.btn-primary:hover{background:#5be6aa;text-decoration:none}
.btn-lg{padding:13px 22px;font-size:15px}

/* hero */
.hero{padding:84px 0 60px;position:relative;overflow:hidden}
.hero:before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:680px;height:680px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(61,220,151,.18),rgba(61,220,151,0) 60%);
  filter:blur(8px);pointer-events:none;
}
.hero h1{font-size:50px;line-height:1.08;margin:0 0 18px;letter-spacing:-1px;font-weight:800}
.hero h1 .acc{color:var(--accent)}
.hero p.lead{font-size:18px;color:var(--muted);max-width:600px;margin:0 0 28px}
.tag{display:inline-block;background:rgba(61,220,151,.1);color:var(--accent);padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.4px;text-transform:uppercase;margin-bottom:18px;border:1px solid rgba(61,220,151,.25)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:46px;align-items:center;position:relative;z-index:1}

.codecard{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);overflow:hidden;
}
.codecard .head{padding:10px 14px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;justify-content:space-between}
.codecard pre{margin:0;padding:18px;font-family:'JetBrains Mono','Consolas',monospace;font-size:13px;line-height:1.7;color:#cfd6e6;overflow:auto}
.kw{color:#7aa2ff}.str{color:#f7c66b}.fn{color:#3ddc97}.cm{color:#5a6e8e;font-style:italic}.nm{color:#e6ecf7}

/* sections */
section{padding:78px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:34px;margin:0 0 12px;letter-spacing:-.5px}
.section-head p{color:var(--muted);font-size:17px;max-width:640px;margin:0 auto}

.features{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;padding:24px;transition:border-color .15s,transform .15s}
.feature:hover{border-color:rgba(61,220,151,.35);transform:translateY(-2px)}
.feature .ico{width:40px;height:40px;border-radius:10px;background:rgba(61,220,151,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;margin-bottom:14px}
.feature h3{margin:0 0 8px;font-size:18px}
.feature p{margin:0;color:var(--muted);font-size:14.5px}

.alt{background:var(--bg-2)}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.metric .num{font-size:38px;font-weight:800;color:var(--accent);letter-spacing:-1px}
.metric .cap{color:var(--muted);font-size:14px;margin-top:4px}

.endpoints{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.endpoints .row{display:grid;grid-template-columns:90px 1fr 1.6fr;gap:16px;padding:14px 20px;border-bottom:1px solid var(--line);align-items:center;font-size:14px}
.endpoints .row:last-child{border-bottom:0}
.endpoints .row:first-child{background:#0e1424;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.method{font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;padding:3px 8px;border-radius:4px;display:inline-block;width:60px;text-align:center}
.m-get{background:rgba(61,220,151,.15);color:var(--accent)}
.m-post{background:rgba(122,162,255,.15);color:#7aa2ff}

.cta-band{background:linear-gradient(135deg,#13231d,#0e2418);border:1px solid rgba(61,220,151,.3);border-radius:14px;padding:46px;text-align:center;margin:48px 0 0}
.cta-band h2{margin:0 0 10px;font-size:30px}
.cta-band p{margin:0 0 22px;color:var(--muted)}

/* footer */
footer{border-top:1px solid var(--line);padding:42px 0 26px;color:var(--muted);font-size:14px;background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:28px}
.foot-grid h4{color:var(--ink);font-size:13px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.6px}
.foot-grid ul{list-style:none;margin:0;padding:0}
.foot-grid li{margin-bottom:8px}
.foot-grid a{color:var(--muted)}
.foot-grid a:hover{color:var(--ink)}
.foot-bottom{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* auth */
.auth-wrap{min-height:calc(100vh - 64px);display:flex;align-items:center;justify-content:center;padding:40px 20px}
.auth-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);width:100%;max-width:420px;padding:36px}
.auth-card h1{margin:0 0 6px;font-size:26px}
.auth-card .sub{color:var(--muted);font-size:14px;margin-bottom:24px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px}
.field input{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:6px;font-size:14px;
  background:var(--bg);color:var(--ink);font-family:inherit;transition:border-color .15s;
}
.field input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(61,220,151,.15)}
.row-between{display:flex;justify-content:space-between;align-items:center;font-size:13px;margin:4px 0 18px;color:var(--muted)}
.row-between label{display:flex;gap:6px;align-items:center}
.btn-block{width:100%;padding:12px;font-size:15px}
.divider{text-align:center;color:var(--muted);font-size:12px;margin:18px 0;position:relative}
.divider:before,.divider:after{content:'';position:absolute;top:50%;width:42%;height:1px;background:var(--line)}
.divider:before{left:0}.divider:after{right:0}
.alt-foot{text-align:center;font-size:13px;color:var(--muted);margin-top:18px}

@media (max-width:880px){
  .hero h1{font-size:36px}
  .hero-grid,.features,.metrics,.foot-grid{grid-template-columns:1fr}
  .nav ul{display:none}
  .endpoints .row{grid-template-columns:1fr}
  section{padding:54px 0}
}