:root{
  --bg:#f7f5f0;--surface:#ffffff;--fg:#17202b;--muted:#4f5864;--line:#e2ddd2;
  --accent:#1f4e79;--accent-strong:#163a5a;--accent-ink:#ffffff;--tint:#e9eef4;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light dark}
@media (prefers-color-scheme:dark){:root{
  --bg:#11161c;--surface:#18202a;--fg:#ebeef2;--muted:#a9b2bd;--line:#29323d;
  --accent:#8ab8e6;--accent-strong:#a9cbef;--accent-ink:#0d1620;--tint:#16212d}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:1.0625rem/1.65 var(--sans);display:flex;flex-direction:column;min-height:100vh}
.wrap{width:100%;max-width:58rem;margin:0 auto;padding:0 1rem}
@media (min-width:40rem){.wrap{padding:0 1.5rem}}

header{background:var(--surface);border-bottom:1px solid var(--line)}
header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:4rem}
.mark{font-family:var(--serif);font-weight:700;font-size:1.25rem;letter-spacing:-.01em;color:var(--fg);text-decoration:none}
nav a{color:var(--muted);text-decoration:none;font-size:.9375rem;font-weight:500;padding:.5rem 0;margin-left:1.25rem}
nav a:hover,nav a[aria-current]{color:var(--fg);text-decoration:underline;text-underline-offset:.3em}

.hero{background:linear-gradient(180deg,var(--tint),var(--bg));border-bottom:1px solid var(--line)}
.hero .wrap{padding-top:4.5rem;padding-bottom:4rem}
.eyebrow{font-size:.8125rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);margin:0 0 .75rem}
h1{font-family:var(--serif);font-weight:700;font-size:clamp(2rem,6vw,3.25rem);line-height:1.1;letter-spacing:-.02em;margin:0 0 1rem;max-width:20ch}
.lede{font-size:clamp(1.125rem,2.4vw,1.3125rem);color:var(--muted);max-width:40ch;margin:0}

main{flex:1}
.section{padding:3rem 0 4rem}
h2{font-family:var(--serif);font-size:1.375rem;line-height:1.3;margin:0 0 .5rem}
p,li{max-width:65ch}
a{color:var(--accent);text-underline-offset:.15em}
a:focus-visible,.button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:.75rem;padding:1.5rem;box-shadow:0 1px 2px rgba(16,24,40,.04),0 4px 16px rgba(16,24,40,.04)}
.card p:last-child{margin-bottom:0}
.grid{display:grid;gap:1rem}
@media (min-width:44rem){.grid{grid-template-columns:1fr 1fr;gap:1.25rem}}
.card.feature{border-top:3px solid var(--accent)}
.steps{margin:0;padding-left:1.25rem}
.steps li{margin:.25rem 0}

.button{display:inline-block;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-weight:600;padding:.75rem 1.25rem;border-radius:.5rem;margin-top:.75rem;min-height:44px}
.button:hover{background:var(--accent-strong)}

footer{background:var(--surface);border-top:1px solid var(--line);color:var(--muted);font-size:.9375rem}
footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.5rem 1.5rem;padding-top:1.5rem;padding-bottom:2rem}
footer a{color:var(--muted)}
footer .mark{font-size:1rem;color:var(--fg)}