:root{
  --bg:#0b0d12;
  --fg:#f7f8fb;
  --muted:#a7afc0;
  --brand:#7c5cff;
  --brand2:#00d4ff;
  --card:#121621;
  --radius:18px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font-family:Inter,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(1200px 600px at 10% -10%,rgba(124,92,255,.25),transparent 50%),radial-gradient(900px 500px at 110% 10%,rgba(0,212,255,.18),transparent 50%),linear-gradient(180deg,#0a0c11,#0a0c11 40%,#0e111a);color:var(--fg)}
.container{max-width:1180px;margin:0 auto;padding:20px}
.site-header{position:sticky;top:0;backdrop-filter:blur(8px);background:rgba(10,12,17,.6);border-bottom:1px solid rgba(255,255,255,.08);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.2px}
.brand img{width:36px;height:36px;border-radius:8px}
nav a{color:var(--fg);opacity:.9;margin:0 8px}
nav a:hover{opacity:1}
.btn{padding:10px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:#151a27;box-shadow:0 4px 12px rgba(0,0,0,.15)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border:none;color:#0b0d12;font-weight:700}
.menu{display:none;background:transparent;border:1px solid rgba(255,255,255,.15);color:var(--fg);padding:8px 10px;border-radius:10px}
.hero{padding:30px 0}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center}
.hero-copy h1{font-size:42px;line-height:1.08;margin:0 0 12px}
.grad{background:linear-gradient(90deg,var(--brand),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.cta{display:flex;gap:10px;margin:12px 0 6px}
.ticks{display:flex;gap:14px;flex-wrap:wrap;color:var(--muted);padding:0}
.ticks li{list-style:none}
.hero-media{position:relative}
.carousel{display:grid;grid-auto-flow:column;gap:12px;overflow:hidden;border-radius:20px;border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow)}
.carousel img{width:100%;height:360px;object-fit:cover;display:block}
.panels{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:10px auto}
.panel{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:16px;min-height:120px}
.demo{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px auto}
.box{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:16px}
label{font-size:13px;color:var(--muted)}
input,select,textarea{width:100%;padding:12px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:#0f1420;color:var(--fg);outline:none}
input:focus,select:focus,textarea:focus{border-color:rgba(124,92,255,.5)}
.hint{font-size:12px;color:var(--muted)}
.content h1{margin-top:8px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.frame{width:100%;height:auto;border-radius:18px;border:1px solid rgba(255,255,255,.1);box-shadow:var(--shadow)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{background:var(--card);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:16px}
.site-footer{margin-top:28px;padding:20px 0;border-top:1px dashed rgba(255,255,255,.12);color:var(--muted)}
.foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
@media (max-width: 980px){
  .hero-grid{grid-template-columns:1fr}
  .panels{grid-template-columns:1fr}
  .demo{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  nav{display:none}
  .menu{display:block}
}