:root{--bg:#F7F7FB;--surface:#fff;--ink:#1B1B21;--muted:#4B4D5E;--line:#DCDCE6;--brand:#4338CA;--brand-ink:#fff;--soft:#EEF0FF;--code:#14151B;--code-ink:#E7E7F0;--r:#FF8A80;--y:#FFD166;--dim:#9A9CB0}
@media (prefers-color-scheme:dark){:root{--bg:#121218;--surface:#1B1B23;--ink:#ECECF3;--muted:#B9BACB;--line:#2E2E3A;--brand:#A5A3FF;--brand-ink:#121218;--soft:#1F1F2E}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--brand)}
a:focus-visible,.btn:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--brand);color:var(--brand-ink);padding:8px 14px;border-radius:8px;z-index:9}
.skip:focus{left:8px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.nav{position:sticky;top:0;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:5}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:20px;color:var(--ink);text-decoration:none}
.logo{width:32px;height:32px}
nav ul{display:flex;gap:4px 18px;list-style:none;margin:0;padding:0;align-items:center;flex-wrap:wrap}
nav a{color:var(--ink);text-decoration:none;padding:10px 2px;display:inline-block}
nav a:hover{text-decoration:underline}
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink)!important;text-decoration:none;font-weight:600;padding:13px 22px;border-radius:999px;min-height:48px;border:2px solid var(--brand)}
.btn:hover{filter:brightness(1.08)}
.btn-sm{padding:8px 16px;min-height:44px}
.btn-ghost{background:transparent;color:var(--brand)!important}
.hero{padding:72px 0 56px}
.hero-in{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.eyebrow{color:var(--brand);font-weight:700;letter-spacing:.02em;margin:0 0 8px}
h1{font-size:clamp(32px,4.4vw,50px);line-height:1.12;margin:0 0 18px;letter-spacing:-.02em}
h2{font-size:clamp(26px,3vw,36px);margin:0 0 28px;letter-spacing:-.01em}
h3{font-size:19px;margin:0 0 8px}
.lead{font-size:19px;color:var(--muted);margin:0 0 28px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.note{color:var(--muted);font-size:15px;margin-top:14px}
.center{text-align:center}
.term{margin:0;background:var(--code);color:var(--code-ink);border-radius:16px;padding:22px;overflow:auto;box-shadow:0 20px 50px rgba(20,20,40,.18)}
.term pre{margin:0;font:13.5px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.term .dim{color:var(--dim)}.term .r{color:var(--r)}.term .y{color:var(--y)}
section{padding:72px 0}
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:24px}
#pricing .card{background:var(--surface)}
.card p{margin:0 0 10px;color:var(--muted)}
.src{font-size:14px}
.steps{list-style:none;counter-reset:s;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;min-width:0}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--soft);color:var(--brand);font-weight:700;margin-bottom:12px}
.steps p{color:var(--muted)}
.code{background:var(--code);color:var(--code-ink);border-radius:12px;padding:14px;overflow:auto;font:13px/1.55 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;margin:12px 0 0}
.features{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.features li{border:1px solid var(--line);border-radius:16px;padding:22px;background:var(--bg)}
.features p{color:var(--muted);margin:0}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em}
.rules{margin-top:24px;color:var(--muted)}
.plan ul{padding-left:20px;color:var(--muted);margin:0 0 18px}
.price{font-size:36px;font-weight:700;color:var(--ink)!important;margin:4px 0 12px!important}
.price span{font-size:16px;color:var(--muted);font-weight:400}
.featured{border:2px solid var(--brand)}
.soon{font-size:12px;font-weight:600;background:var(--soft);color:var(--brand);border-radius:999px;padding:2px 8px;vertical-align:middle}
details{border-bottom:1px solid var(--line);padding:16px 0}
summary{cursor:pointer;font-weight:600;font-size:18px;padding:4px 0}
details p{color:var(--muted)}
footer{padding:32px 0}
.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;color:var(--muted)}
.foot ul{display:flex;gap:18px;list-style:none;margin:0;padding:0}
.foot a{display:inline-block;padding:10px 0}
.doc{padding:48px 0 72px}
.doc h1{font-size:36px}
.doc h2{font-size:22px;margin:32px 0 10px}
.doc p,.doc li{color:var(--muted)}
@media (max-width:900px){.hero-in,.grid3,.steps,.features{grid-template-columns:1fr}.hero{padding-top:40px}section{padding:52px 0}}
.term:focus-visible,.code:focus-visible{outline:3px solid var(--brand);outline-offset:3px}
@media (max-width:640px){nav li:not(:last-child){display:none}.nav-in{flex-wrap:nowrap}}