:root{
  --bg:#f8fafc; --card:#ffffff; --text:#0f172a; --muted:#64748b;
  --green:#16a34a; --blue:#3b82f6; --border:#e2e8f0; --soft:#f1f5f9;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
a{color:var(--blue)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
header{position:sticky;top:0;background:rgba(248,250,252,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-weight:800;font-size:19px;color:var(--green);text-decoration:none}
.logo span{color:var(--blue)}
.nav a{color:var(--muted);text-decoration:none;font-size:14px;margin-left:18px}
.nav a:hover{color:var(--text)}
.nav .cta{background:var(--green);color:#fff;padding:9px 16px;border-radius:10px}
.hero{padding:64px 0 40px;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.hero h1{font-size:42px;line-height:1.14;letter-spacing:-.6px}
.hero h1 em{font-style:normal;color:var(--green)}
.hero p.lead{font-size:18px;color:var(--muted);margin-top:16px}
.points{list-style:none;margin-top:16px}
.points li{padding:6px 0 6px 26px;position:relative}
.points li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
.cta-row{margin-top:26px;display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;padding:12px 22px;border-radius:12px;font-weight:600;text-decoration:none;font-size:15px}
.btn-primary{background:var(--green);color:#fff}
.btn-ghost{background:var(--card);color:var(--text);border:1px solid #cbd5e1}
.notice{background:#fffbeb;border:1px solid #fde68a;color:#78350f;border-radius:12px;padding:10px 14px;font-size:14px;margin-top:18px}
.mock{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px;box-shadow:0 8px 24px -12px rgba(15,23,42,.18)}
.mock .row{display:flex;gap:12px}
.mock .tile{flex:1;background:var(--soft);border-radius:12px;padding:14px;text-align:center}
.mock .tile b{display:block;font-size:26px}
.mock .tile small{color:var(--muted);font-size:12px}
.mock .bar{height:8px;background:var(--border);border-radius:4px;margin-top:14px;overflow:hidden}
.mock .bar i{display:block;height:100%;width:62%;background:var(--green)}
.mock .list{margin-top:14px;font-size:13px}
.mock .list div{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--border)}
.mock .list div:last-child{border:none}
.mock-cap{margin-top:10px;font-size:13px;color:var(--muted);text-align:center}
section{padding:38px 0}
h2{font-size:28px;letter-spacing:-.3px}
.sub{color:var(--muted);margin-top:8px;font-size:16px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px 18px}
.card h3{font-size:16.5px;margin-bottom:6px}
.card p{color:var(--muted);font-size:14px}
.faq{margin-top:22px}
details{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px 20px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;font-size:15px}
details p{color:var(--muted);font-size:14px;margin-top:10px}
.warn{background:#fffbeb;border:1px solid #fde68a;border-radius:12px;padding:14px 18px;font-size:14px;color:#78350f;margin-top:18px}
article{padding:36px 0 8px;max-width:820px;margin:0 auto}
article h1{font-size:32px;line-height:1.2;margin-bottom:10px}
article h2{font-size:22px;margin:26px 0 8px}
article h3{font-size:17px;margin:18px 0 6px}
article p,article li{color:#334155;font-size:15.5px}
article ul,article ol{margin:10px 0 10px 22px}
article .meta{color:var(--muted);font-size:13.5px;margin-bottom:18px}
footer{border-top:1px solid var(--border);padding:28px 0;color:var(--muted);font-size:13px;margin-top:20px}
footer a{color:var(--muted)}
code{background:var(--soft);border:1px solid var(--border);border-radius:6px;padding:1px 5px;font-size:.9em;word-break:break-all}
pre{background:#0f172a;color:#e2e8f0;border-radius:12px;padding:14px 16px;overflow:auto;margin-top:10px}
pre code{background:none;border:none;color:inherit;padding:0}

/* Pricing */
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;align-items:stretch}
.tier{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;display:flex;flex-direction:column}
.tier.pro{border-color:#86efac;box-shadow:0 10px 26px -18px rgba(22,163,74,.55)}
.tier-head{min-height:58px}
.tag{display:inline-block;background:var(--soft);color:var(--muted);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:600}
.tag-pro{background:#dcfce7;color:#166534}
.tier h3{font-size:17px;margin-top:8px}
.price{font-size:36px;font-weight:800;letter-spacing:-1px;margin:10px 0 2px}
.price small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:0}
.tier-note{color:var(--muted);font-size:13px;margin-bottom:10px}
.tier ul{list-style:none;margin:8px 0 16px;flex:1}
.tier li{padding:5px 0 5px 22px;position:relative;font-size:14px;color:#334155}
.tier li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700}
.tier-btn{text-align:center;margin-top:auto}
.fineprint{color:var(--muted);font-size:13.5px;margin-top:16px}

/* Download / buy boxes */
.download-box,.buy-box{display:flex;gap:18px;align-items:center;justify-content:space-between;background:var(--card);border:1px solid var(--border);border-radius:16px;padding:18px 20px;margin:18px 0}
.dl-title{font-size:18px;font-weight:700}
.dl-meta{color:var(--muted);font-size:13.5px;margin-top:3px}
.dl-hash{color:var(--muted);font-size:12.5px;margin-top:6px}
.buy-box{border-color:#86efac}
@media(max-width:860px){
  .hero{grid-template-columns:1fr;padding-top:30px}
  .hero h1{font-size:32px}
  .grid,.tiers{grid-template-columns:1fr}
  .nav .hide-sm{display:none}
  .cta-row{flex-direction:column}
  .btn{text-align:center}
  .download-box,.buy-box{flex-direction:column;align-items:flex-start}
}