/* heatline — componentes compartilhados (tokens, nav, rodapé, idioma)
   Toda página inclui este arquivo ANTES do seu <style> próprio.
   Página define só o que é dela (ex.: --maxw). */

:root{
  --bg:#F4F1EA; --bg2:#FBFAF5; --surface:#FBFAF5; --raised:#FFFFFF;
  --ink:#191410; --muted:#7C6F62; --faint:#A99C8C;
  --line:rgba(25,20,16,.11); --line2:rgba(25,20,16,.06); --empty:#E4DECF;
  --cold:#2E86C1; --comfort:#3C9E5B; --amber:#DE9A2E; --heat:#E0431C; --accent:#E0431C;
  --display:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;
  --body:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --mono:ui-monospace,"SF Mono","Cascadia Code",Menlo,Consolas,monospace;
  --maxw:1080px;
}
:root[data-theme="dark"]{
  --bg:#12100E; --bg2:#1A1613; --surface:#1A1613; --raised:#241C18;
  --ink:#F3ECE2; --muted:#9C8C7E; --faint:#6E6157;
  --line:rgba(243,236,226,.13); --line2:rgba(243,236,226,.07); --empty:#241C18;
  --cold:#4FC3E8; --comfort:#74CF86; --amber:#F2B33C; --heat:#FF4D1C; --accent:#FF4D1C;
}
*{box-sizing:border-box}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}

/* nav */
#siteNav nav{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 84%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line2)}
#siteNav nav .wrap{display:flex;align-items:center;justify-content:space-between;padding:13px 26px}
#siteNav .brand{font-family:var(--display);font-weight:800;font-size:20px;letter-spacing:-.03em;
  display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
#siteNav .brand .dot{width:36px;height:9px;border-radius:5px;
  background:linear-gradient(90deg,var(--cold),var(--comfort) 45%,var(--amber) 70%,var(--heat))}
#siteNav .navr{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
#siteNav .navr>a{font-family:var(--mono);font-size:12px;color:var(--muted);letter-spacing:.02em;text-decoration:none}
#siteNav .navr>a:hover,#siteNav .navr>a.on{color:var(--ink)}
#siteNav .lang{display:flex;gap:3px}
#siteNav .lang button{font-family:var(--mono);font-size:11px;padding:5px 9px;border-radius:7px;
  border:1px solid var(--line);background:none;color:var(--muted);cursor:pointer;letter-spacing:.08em}
#siteNav .lang button.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
@media(max-width:560px){#siteNav .navr{gap:10px}#siteNav .navr>a{font-size:11px}}

/* rodapé */
#siteFoot footer{border-top:1px solid var(--line);margin-top:30px;padding:36px 0 54px;
  color:var(--muted);font-size:14px;font-family:var(--body);line-height:1.6}
#siteFoot .f-author{max-width:60ch;margin:0}
#siteFoot .f-author b{color:var(--ink);font-weight:600}
#siteFoot .f-author a{color:var(--accent);text-decoration:none}
#siteFoot .mono{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;display:block;margin-top:12px;color:var(--faint)}