:root{--ink:#14161a;--muted:#5b6270;--line:#e4e6ea;--bg:#fafaf7;--accent:#1f5f4a;--accent-soft:#e7f0ec}
*{box-sizing:border-box;margin:0;padding:0}
html{font-size:17px}
body{font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6}
a{color:var(--accent)}
.wrap{max-width:880px;margin:0 auto;padding:0 24px}
header{border-bottom:1px solid var(--line);background:#fff}
header .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{font-weight:700;font-size:1.25rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.logo span{color:var(--accent)}
nav a{color:var(--muted);text-decoration:none;margin-left:22px;font-size:.92rem}
nav a:hover{color:var(--ink)}
.hero{padding:88px 0 64px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--accent);background:var(--accent-soft);padding:4px 10px;border-radius:99px;margin-bottom:20px}
h1{font-size:2.6rem;line-height:1.15;letter-spacing:-.03em;max-width:18ch}
.lead{font-size:1.15rem;color:var(--muted);margin-top:20px;max-width:58ch}
section{padding:56px 0;border-top:1px solid var(--line)}
h2{font-size:1.5rem;letter-spacing:-.02em;margin-bottom:18px}
h3{font-size:1.05rem;margin-bottom:6px}
p+p{margin-top:12px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-top:8px}
.card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px}
.card p{color:var(--muted);font-size:.95rem}
.app{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px}
.app ul{margin:14px 0 0 20px;color:var(--muted)}
.app li{margin-top:6px}
.note{margin-top:18px;font-size:.9rem;color:var(--muted)}
dl{display:grid;grid-template-columns:max-content 1fr;gap:8px 24px}
dt{font-weight:600}
dd{color:var(--muted)}
.prose h2{margin-top:36px;font-size:1.25rem}
.prose ul{margin:10px 0 0 20px}
.prose li{margin-top:6px}
.prose p,.prose li{color:#2b2f36}
footer{border-top:1px solid var(--line);padding:32px 0 48px;font-size:.88rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}
footer a{color:var(--muted);margin-left:18px}
@media(max-width:600px){h1{font-size:2rem}.hero{padding:56px 0 40px}nav a{margin-left:14px}dl{grid-template-columns:1fr}}