:root{
  --navy:#0f172a; --navy2:#1e293b; --blue:#2563eb; --blue-l:#60a5fa;
  --text:#0f172a; --muted:#475569; --soft:#64748b; --border:#e2e8f0;
  --bg:#ffffff; --bg-soft:#f8fafc; --radius:12px;
  --maxw:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px; line-height:1.6; -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:var(--blue); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}

/* Header */
.site-header{position:sticky; top:0; z-index:20; background:rgba(255,255,255,.9);
  backdrop-filter:saturate(180%) blur(8px); border-bottom:1px solid var(--border)}
.site-header .wrap{display:flex; align-items:center; justify-content:space-between; height:62px}
.brand{display:flex; align-items:center; gap:9px; font-weight:800; font-size:20px;
  letter-spacing:-.3px; color:var(--navy)}
.brand:hover{text-decoration:none}
.brand .dot{width:27px; height:20px; background:var(--navy); display:inline-block;
  -webkit-mask:url(/logo.svg) no-repeat center/contain; mask:url(/logo.svg) no-repeat center/contain}
.nav{display:flex; align-items:center; gap:22px}
.nav a{color:var(--muted); font-size:14.5px; font-weight:600}
.nav a:hover{color:var(--navy); text-decoration:none}
.nav a.cta{color:#fff; background:var(--blue); padding:8px 15px; border-radius:8px}
.nav a.cta:hover{background:#1d4ed8}
@media(max-width:640px){ .nav{gap:14px} .nav a.hide-sm{display:none} }

/* Buttons */
.btn{display:inline-block; font-weight:700; font-size:15px; padding:11px 20px;
  border-radius:9px; border:1px solid transparent; cursor:pointer}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--blue); color:#fff}
.btn-primary:hover{background:#1d4ed8}
.btn-ghost{background:#fff; color:var(--navy); border-color:var(--border)}
.btn-ghost:hover{border-color:#cbd5e1; background:var(--bg-soft)}
.btn-light{background:rgba(255,255,255,.12); color:#fff; border-color:rgba(255,255,255,.22)}
.btn-light:hover{background:rgba(255,255,255,.2)}

/* Hero */
.hero{background:radial-gradient(1100px 640px at 78% -20%,#1e293b 0%,#0f172a 58%);
  color:#fff; padding:74px 0 78px; text-align:center}
.hero h1{font-size:46px; font-weight:800; letter-spacing:-1px; margin:0 0 6px; line-height:1.1}
.hero .tag{font-size:22px; color:var(--blue-l); font-weight:700; margin:0 0 18px}
.hero p{font-size:18px; color:#cbd5e1; max-width:640px; margin:0 auto 26px}
.hero .btns{display:flex; gap:12px; justify-content:center; flex-wrap:wrap}
@media(max-width:640px){ .hero h1{font-size:33px} .hero .tag{font-size:18px} .hero p{font-size:16px} }

/* Sections */
section.block{padding:60px 0}
section.block.alt{background:var(--bg-soft); border-top:1px solid var(--border); border-bottom:1px solid var(--border)}
.eyebrow{text-transform:uppercase; letter-spacing:1.2px; font-size:12.5px; font-weight:800; color:var(--blue)}
h2.sec{font-size:30px; font-weight:800; letter-spacing:-.4px; margin:6px 0 8px; color:var(--navy)}
.lead{font-size:17px; color:var(--muted); max-width:680px; margin:0}

/* Flagship (Backprompter) */
.flagship{display:grid; grid-template-columns:1.15fr .85fr; gap:34px; align-items:center;
  background:var(--navy); border-radius:18px; padding:38px 40px; color:#fff; margin-top:26px}
.flagship .fp-logo{display:flex; align-items:center; gap:12px; margin-bottom:14px}
.flagship .fp-logo svg{width:40px; height:30px}
.flagship .fp-logo b{font-size:22px; font-weight:800}
.flagship h3{font-size:29px; font-weight:800; letter-spacing:-.5px; margin:0 0 12px; line-height:1.15}
.flagship h3 span{color:var(--blue-l)}
.flagship p{color:#cbd5e1; font-size:16px; margin:0 0 18px}
.flagship .fp-list{list-style:none; padding:0; margin:0 0 22px; display:grid; gap:9px}
.flagship .fp-list li{font-size:14.5px; color:#e2e8f0; padding-left:26px; position:relative}
.flagship .fp-list li::before{content:"✓"; position:absolute; left:0; color:var(--blue-l); font-weight:800}
.flagship .btns{display:flex; gap:11px; flex-wrap:wrap}
.fp-figure{border:1px solid rgba(255,255,255,.14); border-radius:12px; overflow:hidden; background:#0b1220}
.fp-figure img{display:block}
@media(max-width:820px){ .flagship{grid-template-columns:1fr; padding:30px 24px} .fp-figure{order:-1} }

/* Product cards */
.prod-grid{display:grid; grid-template-columns:1fr 1fr; gap:22px; margin-top:26px}
.prod{background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:26px;
  display:flex; flex-direction:column}
.prod .pico{margin-bottom:12px}
.prod .pico img{width:54px; height:54px; border-radius:13px; display:block; box-shadow:0 2px 8px rgba(15,23,42,.14)}
.prod h3{margin:0 0 4px; font-size:20px; font-weight:800; color:var(--navy)}
.prod .sub{color:var(--soft); font-size:14px; margin:0 0 12px; font-weight:600}
.prod p{color:var(--muted); font-size:15px; margin:0 0 18px; flex:1}
.prod .row{display:flex; gap:10px; flex-wrap:wrap; align-items:center}
.prod .helplink{font-size:13.5px; font-weight:600}
@media(max-width:720px){ .prod-grid{grid-template-columns:1fr} }

/* Article (help / legal / product) */
.article{padding:48px 0 60px}
.article .wrap{max-width:820px}
.article h1{font-size:34px; font-weight:800; letter-spacing:-.5px; color:var(--navy); margin:0 0 4px}
.article .meta{color:var(--soft); font-size:14px; margin:0 0 26px}
.article h2{font-size:22px; font-weight:800; color:var(--navy); margin:34px 0 10px; padding-top:6px}
.article h3{font-size:17px; font-weight:700; color:var(--navy); margin:22px 0 6px}
.article p{margin:0 0 12px; color:#1f2937}
.article ul{margin:0 0 14px; padding-left:22px}
.article li{margin:5px 0; color:#1f2937}
.article ol{margin:0 0 14px; padding-left:22px}
.article .callout{background:var(--bg-soft); border:1px solid var(--border);
  border-left:4px solid var(--blue); border-radius:8px; padding:12px 16px; margin:18px 0}
.article .toc{background:var(--bg-soft); border:1px solid var(--border); border-radius:10px;
  padding:16px 20px; margin:0 0 28px}
.article .toc b{display:block; font-size:13px; text-transform:uppercase; letter-spacing:.8px; color:var(--soft); margin-bottom:8px}
.article .toc ul{columns:2; padding-left:18px; margin:0}
.article .toc a{font-size:14px}
.price-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin:18px 0 8px}
.price{border:1px solid var(--border); border-radius:12px; padding:20px; background:#fff}
.price h4{margin:0 0 2px; font-size:17px; color:var(--navy)}
.price .amt{font-size:22px; font-weight:800; color:var(--blue); margin:0 0 10px}
.price ul{padding-left:18px; margin:0}
.price li{font-size:13.5px}
@media(max-width:720px){ .price-grid{grid-template-columns:1fr} .article .toc ul{columns:1} }

/* Footer */
.site-footer{background:var(--navy); color:#cbd5e1; padding:40px 0 30px; margin-top:0}
.site-footer .cols{display:flex; justify-content:space-between; gap:30px; flex-wrap:wrap}
.site-footer .brand{color:#fff; margin-bottom:8px}
.site-footer .brand .dot{background:#fff}
.site-footer .fcol h5{color:#fff; font-size:13px; text-transform:uppercase; letter-spacing:.8px; margin:0 0 10px}
.site-footer a{color:#cbd5e1; font-size:14px; display:block; margin:5px 0}
.site-footer a:hover{color:#fff}
.site-footer .about{max-width:320px; font-size:14px}
.site-footer .legal{border-top:1px solid rgba(255,255,255,.12); margin-top:26px; padding-top:18px;
  font-size:13px; color:#94a3b8; display:flex; justify-content:space-between; gap:14px; flex-wrap:wrap}