:root{--bg:#F2F5F4;--surface:#fff;--ink:#11211F;--muted:#5B6B69;--line:#D8E1DF;--accent:#0B6B5E;--accent-ink:#fff;--accent-soft:#DDF0EB;--sun-soft:#FDF2D9}
@media (prefers-color-scheme:dark){:root{--bg:#0D1716;--surface:#14211F;--ink:#E3EEEC;--muted:#93A7A4;--line:#253836;--accent:#4FC7B2;--accent-ink:#0D1716;--accent-soft:#173430;--sun-soft:#33280F;color-scheme:dark}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 "IBM Plex Sans",system-ui,sans-serif;padding:24px max(16px,env(safe-area-inset-left,0px)) 48px max(16px,env(safe-area-inset-right,0px))}
main{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:18px}
a{color:var(--accent)}
.brand{font:800 1.3rem "Manrope",system-ui,sans-serif;text-decoration:none;color:var(--ink)}.brand span{color:var(--accent)}
h1{font:800 clamp(1.6rem,4vw,2.2rem)/1.15 "Manrope",system-ui,sans-serif;margin:0}
h2{font:700 1.1rem "Manrope",system-ui,sans-serif;margin:8px 0 0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:12px}
.btn{display:inline-block;border:0;border-radius:10px;padding:11px 18px;font:600 .95rem inherit;cursor:pointer;background:var(--accent);color:var(--accent-ink);text-decoration:none;font-family:inherit}
.btn.ghost{background:transparent;color:var(--accent);border:1px solid var(--line)}
.muted{color:var(--muted)}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
ol{padding-left:20px;margin:0;display:flex;flex-direction:column;gap:8px}
input{font:inherit;padding:10px;border:1px solid var(--line);border-radius:9px;background:var(--bg);color:var(--ink);width:100%}