:root{
  --ink:#0f172a;--ink-2:#334155;--muted:#64748b;
  --brand:#1d4ed8;--brand-dark:#1e3a8a;--accent:#0ea5e9;
  --bg:#ffffff;--bg-soft:#f1f5f9;--bg-card:#f8fafc;
  --border:#e2e8f0;--ok:#059669;
  --radius:12px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65;font-size:17px}
.container{max-width:1080px;margin:0 auto;padding:0 24px}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* Header */
header{border-bottom:1px solid var(--border);position:sticky;top:0;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-weight:800;font-size:1.15rem;color:var(--ink);letter-spacing:-.02em}
.logo .ai{color:var(--brand)}
.nav-links{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--ink-2);font-size:.95rem}
.btn{display:inline-block;background:var(--brand);color:#fff !important;padding:10px 20px;border-radius:8px;font-weight:600;border:none;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--brand-dark);text-decoration:none}
.btn-ghost{background:transparent;color:var(--brand) !important;border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--bg-soft)}

/* Hero */
.hero{padding:72px 0 56px;background:linear-gradient(180deg,#f8fafc 0%,#fff 100%)}
.hero h1{font-size:2.6rem;line-height:1.15;letter-spacing:-.03em;max-width:820px}
.hero .sub{margin-top:20px;font-size:1.2rem;color:var(--ink-2);max-width:720px}
.hero .cta-row{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.badge{display:inline-block;background:#dbeafe;color:var(--brand-dark);font-size:.85rem;font-weight:600;padding:4px 12px;border-radius:999px;margin-bottom:18px}

/* Sections */
section{padding:56px 0}
section.soft{background:var(--bg-soft)}
h2{font-size:1.9rem;letter-spacing:-.02em;margin-bottom:12px}
.section-intro{color:var(--ink-2);max-width:760px;margin-bottom:32px}
h3{font-size:1.2rem;margin-bottom:8px}

/* Cards */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.card p{color:var(--ink-2);font-size:.97rem}
.card .num{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--brand);color:#fff;font-weight:700;font-size:.9rem;margin-bottom:12px}

/* Pricing */
.pricing{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));align-items:stretch}
.price-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column}
.price-card.featured{border:2px solid var(--brand);box-shadow:0 8px 24px rgba(29,78,216,.10)}
.price-card .plan{font-weight:700;font-size:1.05rem}
.price-card .price{font-size:2rem;font-weight:800;margin:10px 0 2px;letter-spacing:-.02em}
.price-card .per{color:var(--muted);font-size:.85rem;margin-bottom:16px}
.price-card ul{list-style:none;margin-bottom:20px;flex:1}
.price-card li{padding:5px 0 5px 26px;position:relative;color:var(--ink-2);font-size:.93rem}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.tag{display:inline-block;background:#dbeafe;color:var(--brand-dark);font-size:.75rem;font-weight:700;padding:2px 10px;border-radius:999px;margin-bottom:10px;text-transform:uppercase;letter-spacing:.04em}

/* Tables */
table{width:100%;border-collapse:collapse;margin:20px 0;font-size:.95rem;background:#fff;border-radius:var(--radius);overflow:hidden}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--border)}
th{background:var(--bg-soft);font-weight:700;font-size:.88rem}
caption{caption-side:top;text-align:left;font-size:.85rem;color:var(--muted);padding-bottom:8px}

/* Pipeline */
.pipeline{counter-reset:step;list-style:none;max-width:820px}
.pipeline li{position:relative;padding:16px 0 16px 64px;border-left:2px solid var(--border);margin-left:22px}
.pipeline li::before{counter-increment:step;content:counter(step);position:absolute;left:-22px;top:14px;width:42px;height:42px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.pipeline li strong{display:block;margin-bottom:2px}
.pipeline li p{color:var(--ink-2);font-size:.95rem}

/* FAQ */
.faq details{border-bottom:1px solid var(--border);padding:14px 0}
.faq summary{font-weight:600;cursor:pointer}
.faq details p{margin-top:10px;color:var(--ink-2)}

/* Waitlist */
.waitlist{background:var(--brand-dark);color:#fff;border-radius:var(--radius);padding:44px 32px;text-align:center}
.waitlist h2{color:#fff}
.waitlist p{color:#c7d2fe;max-width:560px;margin:8px auto 24px}
.waitlist form{display:flex;gap:10px;max-width:460px;margin:0 auto;flex-wrap:wrap;justify-content:center}
.waitlist input[type=email]{flex:1;min-width:240px;padding:12px 16px;border-radius:8px;border:none;font-size:1rem}
.waitlist .btn{background:var(--accent)}
.waitlist .note{font-size:.8rem;color:#93c5fd;margin-top:12px}

/* Prose (guides) */
.prose{max-width:780px}
.prose h1{font-size:2.1rem;letter-spacing:-.02em;line-height:1.2;margin:36px 0 16px}
.prose h2{font-size:1.5rem;margin:36px 0 12px}
.prose h3{font-size:1.15rem;margin:24px 0 8px}
.prose p,.prose ul,.prose ol{margin-bottom:16px;color:var(--ink-2)}
.prose ul,.prose ol{padding-left:24px}
.prose .updated{color:var(--muted);font-size:.85rem}
.callout{background:#eff6ff;border-left:4px solid var(--brand);padding:16px 20px;border-radius:0 8px 8px 0;margin:20px 0}
.callout p{margin:0;color:var(--ink)}

/* Footer */
footer{border-top:1px solid var(--border);padding:40px 0 32px;margin-top:40px;background:var(--bg-soft);font-size:.9rem}
.footer-grid{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin-bottom:24px}
footer h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:10px}
footer ul{list-style:none}
footer li{padding:3px 0}
footer a{color:var(--ink-2)}
.footer-legal{color:var(--muted);font-size:.82rem;border-top:1px solid var(--border);padding-top:18px}

@media(max-width:640px){
  .hero h1{font-size:1.9rem}
  .nav-links{display:none}
  body{font-size:16px}
}