:root{
  --bg:#f7fafb;--surface:#fff;--ink:#0d1b24;--ink2:#46606d;--line:#dbe6ea;
  --accent:#0e7f8e;--accent-ink:#fff;--accent-soft:#e3f3f5;
  --f-date:#0f8a9a;--f-vendor:#c2418f;--f-number:#7352d6;--f-amount:#2f8f3e;
  --shadow:0 1px 2px rgba(13,27,36,.06),0 12px 32px rgba(13,27,36,.08);
  --r:16px;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0a1319;--surface:#111e26;--ink:#eaf3f6;--ink2:#9db4bf;--line:#223540;
  --accent:#3cc0d0;--accent-ink:#06222a;--accent-soft:#12303a;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.35);
}}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:17px/1.6 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent)}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
header.nav{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:24px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand img{width:28px;height:28px;border-radius:7px}
.nav nav{margin-left:auto;display:flex;gap:22px;align-items:center}
.nav nav a{color:var(--ink2);text-decoration:none;font-size:15px}
.nav nav a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 16px/1 inherit;font-family:inherit;padding:14px 22px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;cursor:pointer}
.btn:hover{border-color:var(--accent)}
.btn:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.small{padding:9px 14px;font-size:14px}
.btn[disabled]{opacity:.6;cursor:wait}
.hero{padding:72px 0 40px;text-align:center}
.hero img.app-icon{width:96px;height:96px;border-radius:22px;margin:0 auto 28px;box-shadow:var(--shadow)}
h1{font-size:clamp(36px,6vw,64px);line-height:1.05;letter-spacing:-.03em;font-weight:800;max-width:15em;margin:0 auto}
.lede{font-size:clamp(18px,2.2vw,21px);color:var(--ink2);max-width:36em;margin:22px auto 0}
.cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.fine{font-size:14px;color:var(--ink2);margin-top:14px}
.shot{border-radius:var(--r);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden;background:var(--surface)}
.hero .shot{margin-top:48px}
section{padding:80px 0}
section.alt{background:var(--surface);border-block:1px solid var(--line)}
h2{font-size:clamp(28px,4vw,42px);line-height:1.1;letter-spacing:-.02em;font-weight:800}
.kicker{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.head{max-width:40em;margin-bottom:40px}.head p{color:var(--ink2);margin-top:14px}
.center{text-align:center;margin-inline:auto}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
section.alt .step{background:var(--bg)}
.step b{display:block;font-size:18px;margin:8px 0 6px}.step p{color:var(--ink2);font-size:16px}
.chip{display:inline-block;font:600 13px/1 ui-monospace,SFMono-Regular,Menlo,monospace;padding:6px 8px;border-radius:6px;color:#fff}
.c-d{background:var(--f-date)}.c-v{background:var(--f-vendor)}.c-n{background:var(--f-number)}.c-a{background:var(--f-amount)}
.feature{display:grid;grid-template-columns:1fr 1.25fr;gap:56px;align-items:center;padding:36px 0}
.feature.flip{grid-template-columns:1.25fr 1fr}.feature.flip .txt{order:2}
.feature h3{font-size:clamp(24px,3vw,32px);line-height:1.15;letter-spacing:-.02em;margin-bottom:12px}
.feature p{color:var(--ink2)}
.feature ul{list-style:none;margin-top:16px}.feature li{color:var(--ink2);padding:6px 0 6px 26px;position:relative;font-size:16px}
.feature li::before{content:"";position:absolute;left:4px;top:15px;width:10px;height:6px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.privacy{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:center}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.fact{border:1px solid var(--line);border-radius:12px;padding:18px;background:var(--bg)}
.fact b{display:block;margin-bottom:4px}.fact span{color:var(--ink2);font-size:15px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:flex;flex-direction:column;position:relative}
.card.best{border:2px solid var(--accent);box-shadow:var(--shadow)}
.badge{position:absolute;top:-13px;left:24px;background:var(--accent);color:var(--accent-ink);font-size:12px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 10px;border-radius:99px}
.card h3{font-size:18px}.price{font-size:44px;font-weight:800;letter-spacing:-.03em;margin:10px 0 2px}
.price small{font-size:16px;font-weight:500;color:var(--ink2);letter-spacing:0}
.card .sub{color:var(--ink2);font-size:15px;min-height:46px}
.card ul{list-style:none;margin:18px 0 24px;flex:1}.card li{padding:5px 0 5px 24px;position:relative;font-size:15px}
.card li::before{content:"";position:absolute;left:3px;top:13px;width:9px;height:5px;border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}
.err{color:#c0392b;font-size:14px;margin-top:10px;min-height:1em}
@media (prefers-color-scheme:dark){.err{color:#ff8a7a}}
.faq{max-width:760px;margin:0 auto}
details{border-bottom:1px solid var(--line);padding:4px 0}
summary{cursor:pointer;font-weight:600;padding:16px 28px 16px 0;list-style:none;position:relative}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:4px;top:12px;font-size:24px;color:var(--ink2);font-weight:400}
details[open] summary::after{content:"\2212"}
details p{color:var(--ink2);padding:0 0 18px;font-size:16px}
.final{text-align:center}
footer{border-top:1px solid var(--line);padding:36px 0 48px;color:var(--ink2);font-size:14px}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center}
footer a{color:var(--ink2)}footer .sp{margin-left:auto}
.doc{padding:56px 0 80px}.doc h1{font-size:clamp(30px,5vw,44px);margin:0}
.doc .meta{color:var(--ink2);margin:8px 0 28px;font-size:15px}
.doc h2{font-size:21px;letter-spacing:-.01em;margin:32px 0 8px}
.doc p,.doc li{color:var(--ink2);margin-bottom:12px}.doc ul{padding-left:22px;margin-bottom:12px}
.doc strong{color:var(--ink)}
.callout{background:var(--accent-soft);border-left:3px solid var(--accent);padding:16px 20px;border-radius:0 10px 10px 0;margin:20px 0}
.callout p{margin:0;color:var(--ink)}
.keybox{font:600 15px ui-monospace,Menlo,monospace;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:10px 0 20px;color:var(--ink)}
@media (max-width:860px){
  .steps,.cards{grid-template-columns:1fr}
  .feature,.feature.flip,.privacy{grid-template-columns:1fr;gap:24px}.feature.flip .txt{order:0}
  .nav nav a.hide-sm{display:none}
  section{padding:56px 0}.hero{padding-top:44px}
  .facts{grid-template-columns:1fr}
  footer .sp{margin-left:0}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}