/* Scicon Systems — shared base stylesheet.
   Design tokens, resets, typography, layout container, header/nav and buttons.
   Extracted from the original single-file build; the per-page inline <style>
   blocks depend on the custom properties defined here. */

:root{
  --paper:#F5F7FA; --surface:#FFFFFF; --surface-2:#EAEFF6; --surface-3:#DDE5EF;
  --line:#D3DCE8; --line-strong:#B3C1D2;
  --ink:#0B1723; --ink-2:#3D4C5C; --ink-3:#556577;
  --band:#0A2A4F; --band-deep:#071E3A; --band-ink:#FFFFFF; --band-ink-2:#A9C3E0;
  --accent:#1A5FB4; --accent-hot:#2E7FD4; --accent-btn:#1F6BC0; --accent-soft:#E6EFFA; --accent-line:#A5C6EC;
  --brass:#9C6E1C; --brass-soft:#F5EBD8;
  --ok:#2C7A55; --warn:#A9660F; --crit:#A93A2C;
  --r:2px;
  --shadow:0 1px 2px rgba(11,26,32,.05);
  --sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  --disp:"Archivo","Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#070F1A; --surface:#0D1826; --surface-2:#131F31; --surface-3:#1A2942;
    --line:#1E2C42; --line-strong:#2D3E58;
    --ink:#E9EEF5; --ink-2:#A9B7C8; --ink-3:#7C8CA1;
    --band:#0A2140; --band-deep:#071834; --band-ink:#FFFFFF; --band-ink-2:#9FB9DA;
    --accent:#6BA8F0; --accent-hot:#85BCFA; --accent-btn:#2C6FC7; --accent-soft:#12233D; --accent-line:#2A4C7E;
    --brass:#D2A24C; --brass-soft:#2A2314;
    --ok:#4FB585; --warn:#D79A3C; --crit:#E0705F;
    --shadow:0 1px 2px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"]{
  --paper:#070F1A; --surface:#0D1826; --surface-2:#131F31; --surface-3:#1A2942;
  --line:#1E2C42; --line-strong:#2D3E58;
  --ink:#E9EEF5; --ink-2:#A9B7C8; --ink-3:#7C8CA1;
  --band:#0A2140; --band-deep:#071834; --band-ink:#FFFFFF; --band-ink-2:#9FB9DA;
  --accent:#6BA8F0; --accent-hot:#85BCFA; --accent-btn:#2C6FC7; --accent-soft:#12233D; --accent-line:#2A4C7E;
  --brass:#D2A24C; --brass-soft:#2A2314;
  --ok:#4FB585; --warn:#D79A3C; --crit:#E0705F;
  --shadow:0 1px 2px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16.5px;line-height:1.62;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--disp);font-weight:700;line-height:1.12;letter-spacing:-.015em;text-wrap:balance;margin:0}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem)}
h2{font-size:clamp(1.55rem,3.4vw,2.3rem)}
h3{font-size:1.13rem;letter-spacing:-.005em}
p{margin:0}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent-hot);outline-offset:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.narrow{max-width:720px}
.eyebrow{font-family:var(--mono);font-size:.71rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);display:flex;align-items:center;gap:9px}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--accent);flex:none}
.eyebrow.on-band{color:var(--accent-hot)}
.eyebrow.on-band::before{background:var(--accent-hot)}
.lede{font-size:1.12rem;color:var(--ink-2);line-height:1.68}
.stack{display:flex;flex-direction:column}
.g8{gap:8px}.g12{gap:12px}.g16{gap:16px}.g20{gap:20px}.g28{gap:28px}.g40{gap:40px}
section.band{padding:76px 0;border-top:1px solid var(--line)}
section.band:first-of-type{border-top:0}
.grid{display:grid;gap:1px;background:var(--line)}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.cols-2,.cols-3{grid-template-columns:1fr}}

/* header */
.site-head{background:var(--band);color:var(--band-ink);position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(255,255,255,.1)}
.head-in{display:flex;align-items:center;gap:26px;height:70px}
.brandlink{display:flex;align-items:center;gap:11px;flex:none}
.brandlink svg{display:block;height:34px;width:auto}
nav.main{display:flex;gap:4px;margin-left:auto;align-items:center}
nav.main a{font-family:var(--mono);font-size:.76rem;font-weight:500;letter-spacing:.09em;text-transform:uppercase;color:var(--band-ink-2);padding:9px 12px;border-radius:var(--r)}
nav.main a:hover{color:#fff;background:rgba(255,255,255,.07);text-decoration:none}
nav.main a.active{color:#fff;box-shadow:inset 0 -2px 0 var(--accent-hot)}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:12px 20px;border-radius:var(--r);border:1px solid transparent;cursor:pointer}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--accent-btn);color:#FFFFFF;border-color:var(--accent-btn)}
.btn-primary:hover{filter:brightness(1.09)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-onband{border-color:rgba(255,255,255,.34);color:#fff}
.btn-onband:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-sm{padding:9px 14px;font-size:.72rem}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid rgba(255,255,255,.3);color:#fff;border-radius:var(--r);padding:8px 12px;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;cursor:pointer}
@media(max-width:900px){
  nav.main{display:none;position:absolute;top:70px;left:0;right:0;background:var(--band-deep);flex-direction:column;align-items:stretch;padding:10px;gap:2px;border-bottom:1px solid rgba(255,255,255,.14)}
  nav.main.open{display:flex}
  nav.main a{padding:13px 14px;font-size:.82rem}
  .menu-btn{display:block}
  .head-cta{display:none}
}