:root{
  --bg:#f3f5f8; --surface:#ffffff; --ink:#141a26; --muted:#5a6478;
  --line:#d4dae4; --silver:#9aa4b4; --accent:#b0622d; --accent-ink:#ffffff;
  --navy:#1d2a44; --ok:#2f7a55; --warn:#b3261e; --red:#c8322b; --red-ink:#ffffff;
  --display:"Instrument Serif", Georgia, "Times New Roman", serif;
  --body:"IBM Plex Sans", -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#0f141d; --surface:#171e2b; --ink:#e9edf4; --muted:#9ba6ba;
  --line:#2a3447; --silver:#6f7b90; --accent:#e08a4f; --accent-ink:#1a0f07;
  --navy:#c9d4ea; --ok:#5fbf8c; --warn:#ff8a80; --red:#ff6b5e; --red-ink:#1a0605; color-scheme:dark }
  .logo{filter:invert(1)}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.55 var(--body);
  padding-left:max(16px, env(safe-area-inset-left,0px));padding-right:max(16px, env(safe-area-inset-right,0px))}
[hidden]{display:none!important}
h1,h2,h3{text-wrap:balance;margin:0}
h1{font:400 2.5rem/1.05 var(--display);letter-spacing:-.01em}
h1 em{font-style:italic;color:var(--accent)}
h2{font:400 1.7rem/1.15 var(--display)}
h3{font:600 1.02rem/1.3 var(--body)}
p{margin:0}
a{color:var(--accent)}
.logo{width:170px;height:auto;display:block}
.eyebrow{font:500 .72rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.note{font-size:.85rem;color:var(--muted)}
.btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;background:var(--accent);color:var(--accent-ink);
  text-decoration:none;font:600 1.02rem var(--body);border-radius:12px;padding:16px;border:0;cursor:pointer}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line);padding:11px 14px;font-size:.9rem;width:auto}
.btn.small{width:auto;padding:10px 14px;font-size:.9rem}
.btn:disabled{opacity:.55;cursor:progress}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:6px 16px;display:flex;flex-direction:column}