:root{--bg:#fff;--fg:#14262b;--muted:#4a5f65;--brand:#0b6e6e;--brand-d:#08504f;--tint:#eef7f6;--line:#d5e3e2;--warn:#fff6dc}
@media (prefers-color-scheme:dark){:root{--bg:#0f1b1e;--fg:#e8f1f1;--muted:#a9bec1;--brand:#4cc3be;--brand-d:#7fdad5;--tint:#162a2d;--line:#2a4246;--warn:#3a3217}}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font:1.0625rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--fg)}
.wrap{max-width:68rem;margin:0 auto;padding:0 1rem}
a{color:var(--brand-d)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--brand);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--brand-d);color:#fff;padding:.5rem 1rem;z-index:10}
.skip:focus{left:0}
header.site{border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:.5rem 1.5rem;padding-top:.75rem;padding-bottom:.75rem}
.logo{display:inline-flex;text-decoration:none}
.logo svg{height:2rem;width:auto;display:block}
nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.25rem 1.25rem;align-items:center}
nav a{text-decoration:none;color:var(--fg);padding:.4rem 0;display:inline-block}
nav a[aria-current=page]{border-bottom:2px solid var(--brand);font-weight:600}
.btn{display:inline-block;background:var(--brand-d);color:#fff;padding:.7rem 1.25rem;border-radius:.4rem;text-decoration:none;font-weight:600;border:0;font-size:1rem;cursor:pointer}
@media (prefers-color-scheme:dark){.btn{background:var(--brand);color:#06201f}}
.btn.alt{background:transparent;color:var(--brand-d);border:2px solid var(--brand-d)}
nav a.btn{color:#fff;padding:.5rem 1rem}
@media (prefers-color-scheme:dark){nav a.btn{color:#06201f}}
.hero{background:var(--tint);padding:3.5rem 0}
h1{font-size:clamp(1.9rem,5vw,2.9rem);line-height:1.15;margin:0 0 1rem}
h2{font-size:1.6rem;line-height:1.25;margin:2.5rem 0 .75rem}
h3{font-size:1.15rem;margin:0 0 .4rem}
.lead{font-size:1.2rem;color:var(--muted);max-width:42rem}
.cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}
.grid{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));margin:1.25rem 0}
.card{border:1px solid var(--line);border-radius:.6rem;padding:1.1rem 1.25rem;background:var(--bg)}
.card p{margin:.2rem 0;color:var(--muted)}
.tag{display:inline-block;font-size:.8rem;background:var(--tint);border:1px solid var(--line);border-radius:1rem;padding:.1rem .6rem;margin-bottom:.4rem}
main{padding-bottom:3rem}
.note{background:var(--warn);border:1px solid var(--line);padding:.75rem 1rem;border-radius:.4rem}
ul.ticks{padding-left:1.2rem}ul.ticks li{margin:.35rem 0}
form{max-width:40rem}
label{display:block;font-weight:600;margin:1rem 0 .25rem}
input,select,textarea{width:100%;font:inherit;padding:.6rem;border:1px solid var(--muted);border-radius:.35rem;background:var(--bg);color:var(--fg)}
.check{display:flex;gap:.6rem;align-items:flex-start;margin-top:1.25rem}
.check input{width:auto;margin-top:.35rem}.check label{margin:0;font-weight:400}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
footer.site{border-top:1px solid var(--line);background:var(--tint);padding:2rem 0;color:var(--muted);font-size:.95rem}
footer.site ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.5rem 1.25rem}
@media (max-width:40rem){.hero{padding:2rem 0}}
.wordmark{font-size:1.6rem;font-weight:700;color:var(--brand-d);letter-spacing:-.01em}
.wordmark span{color:var(--fg)}
header.site .logo{text-decoration:none}
.hp{position:absolute;left:-9999px;height:0;overflow:hidden}
input:invalid[aria-invalid=true],select:invalid[aria-invalid=true]{border-color:#b3261e;border-width:2px}
#demo-error{background:#fde8e6}
@media (prefers-color-scheme:dark){#demo-error{background:#3d1a17}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media (max-width:30rem){nav ul{gap:.1rem 1rem}}
.logo img{height:2rem;width:auto;display:block}