*{box-sizing:border-box}
:root{color-scheme:light;--paper:#f4f1e9;--ink:#172b29;--muted:#445b56;--line:#c8d0c3;--green:#216252;--panel:#fffdf7;scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.55 system-ui,-apple-system,sans-serif}
.wrap{width:min(100% - 2.25rem,60rem);margin-inline:auto}
.bar{min-height:4.4rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--line)}
a{color:var(--green);text-underline-offset:.2em}
.brand{font-weight:760;color:var(--ink);text-decoration:none}
nav{display:flex;gap:clamp(.75rem,3vw,1.6rem);font-size:.88rem}
.intro{padding:clamp(2.75rem,7vw,5.5rem) 0 2.75rem}
.eyebrow{color:var(--green);font:700 .75rem/1.4 ui-monospace,monospace;letter-spacing:.12em;text-transform:uppercase;margin:0 0 .75rem}
h1,h2,h3{line-height:1.12;margin:0;color:var(--ink)}
h1{font-size:clamp(3.3rem,11vw,7.25rem);letter-spacing:-.075em;font-weight:820}
h1 span,footer span{color:var(--green)}
h2{font-size:clamp(1.8rem,4vw,2.6rem);letter-spacing:-.045em}
h3{font-size:1.13rem}
.lede{color:var(--muted);max-width:31rem;font-size:clamp(1.06rem,2.8vw,1.35rem);margin:1.2rem 0 0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:1rem;padding:clamp(1.2rem,4vw,2.5rem);scroll-margin:1.2rem}
.card>p:not(.eyebrow),article p{color:var(--muted)}
label{display:block;font-weight:650;margin-bottom:.45rem}
.input-row{display:flex;gap:.65rem;flex-wrap:wrap}
input,button{font:inherit;min-height:2.9rem;border-radius:.45rem}
input{flex:1;min-width:11rem;padding:.5rem .7rem;border:1px solid #819389;color:var(--ink);background:#fff}
button{padding:.5rem 1.1rem;border:1px solid var(--green);background:var(--green);color:white;font-weight:700;cursor:pointer}
button:hover{background:#184d40}
:focus-visible{outline:3px solid #406b18;outline-offset:3px}
.results{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,13rem),1fr));gap:.8rem;margin:1.4rem 0 0}
.results div{border-top:1px solid var(--line);padding-top:.6rem}
dt{font-size:.82rem;color:var(--muted)}
dd{margin:.15rem 0 0;overflow-wrap:anywhere;font:650 .95rem/1.5 ui-monospace,monospace}
#input-error{color:#9a302b;font-weight:650}
#notes{margin:3.2rem 0;scroll-margin:1.2rem}
.notes{margin-top:1.3rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,16rem),1fr));gap:1rem}
article{border-top:1px solid var(--line);min-width:0;padding-top:1rem}
pre{overflow:auto;background:#e6e9df;border-radius:.45rem;padding:.65rem;font-size:.83rem}
footer{border-top:1px solid var(--line);padding:1rem 0 2rem;font-size:.85rem;color:var(--muted)}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}
[hidden]{display:none!important}