:root{
  --ground:#F3F4F6; --surface:#FFFFFF; --ink:#15171C; --muted:#5E6470;
  --line:#E1E4EA; --accent:#0F6E6A; --accent-ink:#FFFFFF; --accent-soft:#E2F1EF; --ph:#EEF0F4; --ph-ink:#8A91A0;
  --danger:#B42318; --ok:#0F7A43; --focus:#0F6E6A;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#0F1115; --surface:#181B21; --ink:#ECEEF2; --muted:#9AA1AE;
    --line:#2A2E37; --accent:#4FC2BA; --accent-ink:#06201E; --accent-soft:#16302E; --ph:#20242C; --ph-ink:#6F7684;
    --danger:#FF8A7A; --ok:#5FD39A; --focus:#4FC2BA; color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --ground:#0F1115; --surface:#181B21; --ink:#ECEEF2; --muted:#9AA1AE;
  --line:#2A2E37; --accent:#4FC2BA; --accent-ink:#06201E; --accent-soft:#16302E; --ph:#20242C; --ph-ink:#6F7684;
  --danger:#FF8A7A; --ok:#5FD39A; --focus:#4FC2BA; color-scheme: dark;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--ground);color:var(--ink);font:15px/1.5 "IBM Plex Sans",system-ui,-apple-system,sans-serif}
.display{font-family:"Bricolage Grotesque",system-ui,sans-serif}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
.theme-btn{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font:500 13px/1 "IBM Plex Sans",system-ui,sans-serif;cursor:pointer}
.theme-btn:hover{border-color:var(--muted)}
.theme-btn svg{width:16px;height:16px}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}
[hidden]{display:none!important}