:root{
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --line:#e2e8f0;
  --bg:#ffffff; --bg-soft:#f8fafc; --accent:#1d4ed8; --accent-soft:#eff6ff;
  --radius:12px; --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--max); margin:0 auto; padding:0 24px}

/* header */
.site-head{border-bottom:1px solid var(--line); background:rgba(255,255,255,.92); backdrop-filter:blur(8px); position:sticky; top:0; z-index:10}
.site-head .wrap{display:flex; align-items:center; justify-content:space-between; height:64px; gap:24px}
.brand{display:flex; align-items:center; gap:10px; font-weight:700; font-size:17px; color:var(--ink)}
.brand:hover{text-decoration:none}
.brand-mark{width:26px; height:26px; flex:none}
.nav{display:flex; gap:26px; font-size:14.5px}
.nav a{color:var(--ink-2)}
.nav a:hover{color:var(--accent)}
@media(max-width:760px){
  .site-head .wrap{height:auto; flex-direction:column; align-items:flex-start; padding-top:14px; padding-bottom:14px}
  .nav{flex-wrap:wrap; gap:16px}
}

/* hero */
.hero{padding:88px 0 72px; border-bottom:1px solid var(--line)}
.hero h1{font-size:44px; line-height:1.2; letter-spacing:-.02em; margin:0 0 18px; max-width:18ch}
.hero p{font-size:19px; color:var(--ink-2); margin:0 0 30px; max-width:62ch}
.eyebrow{display:inline-block; font-size:12.5px; font-weight:600; letter-spacing:.09em; text-transform:uppercase; color:var(--accent); background:var(--accent-soft); border-radius:999px; padding:6px 13px; margin-bottom:22px}
@media(max-width:760px){.hero{padding:56px 0 48px} .hero h1{font-size:32px}}

.btn{display:inline-block; background:var(--accent); color:#fff; padding:12px 24px; border-radius:var(--radius); font-weight:600; font-size:15px}
.btn:hover{background:#1e40af; text-decoration:none}
.btn-ghost{background:transparent; color:var(--ink-2); border:1px solid var(--line); margin-left:10px}
.btn-ghost:hover{background:var(--bg-soft); color:var(--ink)}

/* sections */
section{padding:72px 0}
section + section{border-top:1px solid var(--line)}
h2{font-size:30px; letter-spacing:-.015em; margin:0 0 12px}
.lede{color:var(--muted); font-size:17px; margin:0 0 44px; max-width:64ch}
h3{font-size:19px; margin:0 0 8px}

.feature{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; padding:36px 0}
.feature + .feature{border-top:1px solid var(--line)}
.feature.flip .feature-art{order:-1}
.feature p{color:var(--ink-2); margin:0 0 14px}
.feature ul{margin:0; padding-left:18px; color:var(--muted); font-size:15px}
.feature li{margin:4px 0}
.feature-art{background:var(--bg-soft); border:1px solid var(--line); border-radius:var(--radius); padding:20px}
.feature-art svg{display:block; width:100%; height:auto}
@media(max-width:860px){.feature{grid-template-columns:1fr; gap:26px} .feature.flip .feature-art{order:0}}

/* pricing */
.tiers{display:grid; grid-template-columns:repeat(3,1fr); gap:22px}
.tier{border:1px solid var(--line); border-radius:var(--radius); padding:28px; display:flex; flex-direction:column}
.tier.featured{border-color:var(--accent); box-shadow:0 8px 28px rgba(29,78,216,.08)}
.tier h3{font-size:16px; text-transform:uppercase; letter-spacing:.06em; color:var(--muted); font-weight:600}
.price{font-size:38px; font-weight:700; letter-spacing:-.02em; margin:6px 0 2px}
.price span{font-size:15px; font-weight:500; color:var(--muted)}
.tier .note{color:var(--muted); font-size:14.5px; margin:0 0 20px}
.tier ul{list-style:none; padding:0; margin:0 0 24px; font-size:15px; color:var(--ink-2); flex:1}
.tier li{padding:7px 0; border-top:1px solid var(--line)}
.tier .btn{text-align:center}
@media(max-width:860px){.tiers{grid-template-columns:1fr}}

/* prose */
.prose{max-width:74ch}
.prose h2{font-size:22px; margin:38px 0 10px}
.prose h2:first-of-type{margin-top:0}
.prose p,.prose li{color:var(--ink-2)}
.prose ul{padding-left:20px}
.prose li{margin:6px 0}
.updated{color:var(--muted); font-size:14px; margin:0 0 34px}
table.data{border-collapse:collapse; width:100%; font-size:15px; margin:14px 0}
table.data th,table.data td{border:1px solid var(--line); padding:10px 12px; text-align:left; vertical-align:top}
table.data th{background:var(--bg-soft); font-weight:600; color:var(--ink)}
table.data td{color:var(--ink-2)}

/* footer */
.site-foot{border-top:1px solid var(--line); background:var(--bg-soft); padding:40px 0; font-size:14.5px; color:var(--muted)}
.site-foot .cols{display:flex; justify-content:space-between; gap:32px; flex-wrap:wrap; margin-bottom:26px}
.site-foot a{color:var(--ink-2)}
.site-foot strong{color:var(--ink); font-weight:600}
.foot-links{display:flex; gap:20px; flex-wrap:wrap}
.disclaimer{border-top:1px solid var(--line); padding-top:20px; line-height:1.7}

/* callback */
.callback{min-height:100vh; display:flex; align-items:center; justify-content:center; text-align:center; padding:24px}
.callback .card{border:1px solid var(--line); border-radius:var(--radius); padding:44px 40px; max-width:440px; background:var(--bg-soft)}
.callback h1{font-size:22px; margin:18px 0 10px}
.callback p{color:var(--muted); margin:0}

/* faq */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line); padding:0}
.faq summary{cursor:pointer; list-style:none; padding:20px 34px 20px 0; font-weight:600; font-size:17px; position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+"; position:absolute; right:6px; top:17px; font-size:22px; font-weight:400; color:var(--muted)}
.faq details[open] summary::after{content:"\2013"}
.faq summary:hover{color:var(--accent)}
.faq .answer{padding:0 0 22px; color:var(--ink-2); max-width:76ch}
.faq .answer p{margin:0 0 12px}
.faq .answer p:last-child{margin:0}
.faq .answer strong{color:var(--ink)}