/* Site Baseline · shared styles for public pages
   Layout: survey-sheet feel. Condensed display type, mono for measurements, red line as the brand mark. */
:root{
  --bg:#F2F4F2; --paper:#FFFFFF; --paper-2:#F7F8F7; --line:#D9DEDA; --line-2:#E7EBE8;
  --ink:#141B18; --ink-2:#2B3530; --muted:#55615B; --night:#141B18; --on-night:#F2F4F2;
  --red:#C2322B; --red-soft:#F8E4E2; --blue:#1D4E89; --blue-soft:#E4EDF7; --on-blue:#FFFFFF;
  --green:#1D6E5A; --amber:#8A5A0C;
  --display:'IBM Plex Sans Condensed','Arial Narrow',system-ui,sans-serif;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0F1412; --paper:#171D1A; --paper-2:#1D2420; --line:#2F3934; --line-2:#26302B;
  --ink:#E9EEEB; --ink-2:#CBD4CF; --muted:#9DA9A3; --night:#0A0E0C; --on-night:#E9EEEB;
  --red:#F0766E; --red-soft:#3A1E1C; --blue:#8DB6EA; --blue-soft:#1C2A3B; --on-blue:#0D1A2B;
  --green:#7FC9B2; --amber:#E8B866; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0F1412; --paper:#171D1A; --paper-2:#1D2420; --line:#2F3934; --line-2:#26302B;
  --ink:#E9EEEB; --ink-2:#CBD4CF; --muted:#9DA9A3; --night:#0A0E0C; --on-night:#E9EEEB;
  --red:#F0766E; --red-soft:#3A1E1C; --blue:#8DB6EA; --blue-soft:#1C2A3B; --on-blue:#0D1A2B;
  --green:#7FC9B2; --amber:#E8B866; color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 var(--sans)}
img,svg{max-width:100%}
a{color:var(--blue)}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px;border-radius:4px}
h1,h2,h3{font-family:var(--display);font-weight:600;line-height:1.1;margin:0;text-wrap:balance;letter-spacing:-.01em}
p{margin:0}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}

/* Nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-2)}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30;background:var(--bg)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--display);font-weight:600;font-size:20px;letter-spacing:-.01em}
.brand svg{flex:none}
.nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0;align-items:center}
.nav ul a{color:var(--ink-2);text-decoration:none;font-size:15px}
.nav ul a:hover{color:var(--ink)}
@media (max-width:760px){.nav ul .hide-sm{display:none}}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 20px;border-radius:8px;border:1px solid var(--line);background:var(--paper);color:var(--ink);font:600 15px/1 var(--sans);text-decoration:none;cursor:pointer}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:var(--on-blue)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.small{min-height:40px;padding:0 14px;font-size:14px}

/* Footer */
.foot{border-top:1px solid var(--line);margin-top:96px;padding-block:28px 40px;color:var(--muted);font-size:14px}
.foot .wrap{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}
.foot nav{display:flex;flex-wrap:wrap;gap:8px 20px}
.foot a{color:var(--ink-2)}

/* Prose pages */
.prose{max-width:720px;margin:0 auto;padding-block:56px 0}
.prose h1{font-size:clamp(34px,5vw,48px);margin-bottom:8px}
.prose h2{font-size:24px;margin:36px 0 10px}
.prose p,.prose li{color:var(--ink-2);margin-bottom:12px}
.prose ul{padding-left:22px}
.draft{border:1px dashed var(--amber);color:var(--amber);background:color-mix(in srgb,var(--amber) 8%,transparent);border-radius:8px;padding:12px 14px;font-size:14px;margin:18px 0 8px}