:root{color-scheme:light dark;--paper:#f6f3ec;--ink:#223c36;--muted:#56675f;--card:#fffefa;--line:#dcded2;--accent:#275e4b;--button-text:#fff;--glow:#d8e1ca}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:18px/1.6 ui-rounded,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-text-size-adjust:100%}
main{max-width:680px;padding:36px 28px 28px;margin:auto}
a{color:inherit;text-underline-offset:4px}
.wordmark{font-size:30px;font-weight:750;letter-spacing:-1.6px;text-decoration:none}.wordmark span{color:var(--accent)}
.circle-mark{display:flex;align-items:center;justify-content:center;height:112px;margin:46px 0 24px}
.circle-mark i{width:78px;height:78px;border-radius:50%;background:#b9cbaa;border:6px solid var(--paper)}
.circle-mark i:nth-child(2){background:#e5bda1;margin:0 -14px;z-index:1;width:98px;height:98px}
.circle-mark i:nth-child(3){background:#b9d0cd}
.eyebrow{font-size:12px;letter-spacing:2.3px;font-weight:750;text-align:center;color:var(--muted)}
h1{font-size:clamp(35px,7.3vw,50px);line-height:1.12;letter-spacing:-1.8px;text-align:center;margin:14px 0 22px;font-weight:700}
.intro{max-width:480px;margin:0 auto 34px;text-align:center;color:var(--muted)}
section{padding:25px 26px;background:var(--card);border:1px solid var(--line);border-radius:24px;margin-top:22px}
h2{font-size:22px;line-height:1.3;letter-spacing:-.4px;margin:0 0 12px}
p{margin:0 0 18px}p:last-child{margin-bottom:0}
button{font:inherit;font-weight:650;color:var(--button-text);background:var(--accent);border:0;border-radius:14px;min-height:54px;width:100%;padding:13px 20px;cursor:pointer}
button:hover{filter:brightness(1.08)}button:disabled{opacity:.65;cursor:wait}
:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
.small,.status{font-size:15px;color:var(--muted)}.status:empty{display:none}.status{margin:14px 0}
textarea{width:100%;font:14px/1.5 ui-monospace,monospace;padding:12px;border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:8px;overflow-wrap:anywhere;resize:vertical}
label{font-size:14px;font-weight:600}
footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:30px;font-size:13px;color:var(--muted)}
[hidden]{display:none!important}
@media(prefers-color-scheme:dark){:root{--paper:#162620;--ink:#f0f2e9;--muted:#becbbf;--card:#21362d;--line:#3a5141;--accent:#bfd6ac;--button-text:#193224;--glow:#3b5142}.circle-mark i{filter:brightness(.8)}}
@media(max-width:420px){main{padding:26px 20px}.circle-mark{margin-top:30px;height:96px}section{padding:22px 20px}footer{flex-direction:column}}
@media(prefers-reduced-motion:no-preference){button{transition:filter .12s ease}}