:root{
  --bg:#0b1020;--panel:#12182b;--ink:#eef1f8;--sub:#9aa6c4;--line:#232c46;
  --indigo:#6366f1;--indigo-d:#4f46e5;--violet:#a78bfa;--mint:#34d399;--amber:#fbbf24;--red:#f87171;
  --r:16px;--shadow:0 10px 40px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;font-size:15px;line-height:1.6}
a{color:var(--violet);text-decoration:none}
h1,h2,h3{letter-spacing:-.02em;margin:0}
.wrap{max-width:1100px;margin:0 auto;padding:0 clamp(18px,5vw,40px)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--indigo);color:#fff;border:0;border-radius:12px;padding:12px 20px;font-weight:700;font-size:15px;cursor:pointer}
.btn:hover{background:var(--indigo-d)}
.btn.ghost{background:rgba(255,255,255,.06);color:var(--ink);border:1px solid var(--line)}
.btn.lg{padding:15px 26px;font-size:16px}
.btn.sm{padding:7px 13px;font-size:13px;border-radius:9px}

/* nav */
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px clamp(18px,5vw,40px);position:sticky;top:0;background:rgba(11,16,32,.8);backdrop-filter:blur(10px);z-index:9;border-bottom:1px solid var(--line)}
.logo{font-weight:800;font-size:20px;color:#fff}.logo .g{background:linear-gradient(90deg,var(--indigo),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav .link{margin-left:22px;color:var(--sub);font-weight:600}.nav .link:hover{color:#fff}

/* hero */
.hero{text-align:center;padding:80px clamp(18px,5vw,40px) 50px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% 20% auto;height:420px;background:radial-gradient(closest-side,rgba(99,102,241,.35),transparent);z-index:0}
.hero>*{position:relative;z-index:1}
.eyebrow{display:inline-block;background:rgba(167,139,250,.14);color:var(--violet);font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase;padding:7px 14px;border-radius:20px;margin-bottom:20px}
.hero h1{font-size:clamp(34px,5.5vw,60px);line-height:1.05;max-width:820px;margin:0 auto 18px;background:linear-gradient(180deg,#fff,#c7ceea);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:19px;color:var(--sub);max-width:600px;margin:0 auto 28px}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* sections */
.section{padding:60px clamp(18px,5vw,40px)}
.section h2{font-size:clamp(26px,3.4vw,38px);text-align:center;margin-bottom:8px}
.section .lead{text-align:center;color:var(--sub);max-width:560px;margin:0 auto 40px}
.grid{display:grid;gap:20px}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.g3,.g2{grid-template-columns:1fr}.nav .link{display:none}}

.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.prod .ico{font-size:32px;margin-bottom:12px}
.prod h3{font-size:19px;margin-bottom:4px}
.prod .tag{color:var(--violet);font-size:13px;font-weight:600;margin-bottom:8px}
.prod p{color:var(--sub);font-size:14px;margin:0 0 14px}
.prod .price{font-weight:800;font-size:15px}

/* pricing chips */
.pk{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.chip{border:1px solid var(--line);border-radius:10px;padding:6px 12px;font-size:13px}
.chip b{color:#fff}

.band{background:linear-gradient(120deg,var(--indigo-d),var(--violet));border-radius:24px;text-align:center;padding:52px 26px;margin:0 clamp(18px,5vw,40px)}
.band h2{color:#fff}.band .btn{background:#fff;color:var(--indigo-d)}
.foot{padding:40px clamp(18px,5vw,40px);color:var(--sub);text-align:center;border-top:1px solid var(--line);font-size:14px}

/* auth */
.auth{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth .box{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:32px;width:100%;max-width:400px;box-shadow:var(--shadow)}
.auth h1{font-size:24px;text-align:center;margin-bottom:4px}.auth .sub{text-align:center;color:var(--sub);margin:0 0 22px}

/* admin */
.shell{display:flex;min-height:100vh}
.side{width:230px;background:#0d1324;border-right:1px solid var(--line);padding:16px;position:sticky;top:0;height:100vh}
.side .logo{font-size:18px;margin-bottom:18px;padding:0 6px}
.side a{display:block;padding:11px 14px;border-radius:10px;color:var(--sub);font-weight:600;margin-bottom:2px}
.side a:hover{background:rgba(255,255,255,.05);color:#fff}.side a.on{background:var(--indigo);color:#fff}
.main{flex:1;min-width:0}.top{padding:22px clamp(18px,4vw,32px);border-bottom:1px solid var(--line)}.top h1{font-size:20px}
.body{padding:24px clamp(18px,4vw,32px)}

label{display:block;font-size:12px;font-weight:600;color:var(--sub);margin-bottom:6px}
input,select,textarea{width:100%;padding:11px 13px;background:#0d1324;border:1px solid var(--line);border-radius:10px;color:var(--ink);font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(99,102,241,.4);border-color:var(--indigo)}
.field{margin-bottom:15px}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
table{width:100%;border-collapse:collapse}th{text-align:left;color:var(--sub);font-size:11px;text-transform:uppercase;letter-spacing:.04em;padding:10px 12px;border-bottom:1px solid var(--line)}
td{padding:11px 12px;border-bottom:1px solid var(--line)}
.flash{padding:11px 14px;border-radius:10px;margin-bottom:16px;font-weight:600}
.flash.ok{background:rgba(52,211,153,.14);color:var(--mint)}.flash.err{background:rgba(248,113,113,.14);color:var(--red)}
.muted{color:var(--sub)}.right{text-align:right}
.pill{padding:3px 10px;border-radius:20px;font-size:11px;font-weight:700}
.pill.on{background:rgba(52,211,153,.16);color:var(--mint)}.pill.off{background:rgba(248,113,113,.16);color:var(--red)}