/* ═══════════════════════════════════════════════════════════════
   APEX ULTRA — site.css  ·  shared design system (V2)
   ═══════════════════════════════════════════════════════════════ */
:root{
  --bg:#04070B; --veil:rgba(4,7,11,.86);
  --ink-hi:#EAF2F8; --ink:#C9D4DE; --ink-mid:#5C7186; --ink-lo:#16202C;
  --accent:#FFB25A; --ui:#8FA3B8; --ui-dim:#3A4A5A; --hairline:rgba(143,163,184,.22);
  --mono:ui-monospace,"SF Mono","Cascadia Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --measure:80ch;
}
[data-theme="light"]{
  --bg:#F5F6F4; --veil:rgba(245,246,244,.9);
  --ink-hi:#0B0F14; --ink:#2A3038; --ink-mid:#7C8894; --ink-lo:#D9DDE0;
  --accent:#A85400; --ui:#4A5560; --ui-dim:#B9C0C6; --hairline:rgba(74,85,96,.26);
}
*{margin:0;padding:0;box-sizing:border-box}
html{background:var(--bg);scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--mono);color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.75;transition:background .6s ease}
a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .3s,color .3s}
a:hover,a:focus-visible{border-bottom-color:var(--accent)}
:focus-visible{outline:1px solid var(--accent);outline-offset:3px}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);clip-path:inset(50%);border:0}

/* ——— background field canvas (subpages) ——— */
#field{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;pointer-events:none}

/* ——— navigation ——— */
.nav{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;padding-top:calc(14px + env(safe-area-inset-top));
  font-size:10px;letter-spacing:.22em;text-transform:uppercase;
  background:linear-gradient(to bottom,var(--bg) 0%,rgba(4,7,11,0) 100%);pointer-events:none}
[data-theme="light"] .nav{background:linear-gradient(to bottom,var(--bg) 0%,rgba(245,246,244,0) 100%)}
.nav>*{pointer-events:auto}
.nav .mark{display:block;text-decoration:none;border:0;line-height:1.5}
.nav .mark b{display:block;color:var(--ink-hi);font-weight:700;letter-spacing:.32em;font-size:10px}
.nav .mark span{display:block;color:var(--ui-dim);letter-spacing:.2em;font-size:9px;line-height:2.2;margin-left:-.08em}
.nav ul{display:flex;gap:26px;list-style:none;align-items:center}
.nav li a{color:var(--ui);border:0;padding:6px 0;transition:color .3s,letter-spacing .3s}
.nav li a:hover,.nav li a:focus-visible,.nav li a[aria-current="page"]{color:var(--ink-hi)}
.nav li a[aria-current="page"]{border-bottom:1px solid var(--accent)}
.nav .theme{color:var(--ui-dim);font-size:11px;letter-spacing:.2em;padding:6px 4px;margin-left:8px;transition:color .3s}
.nav .theme:hover,.nav .theme:focus-visible{color:var(--ink-hi)}
@media (max-width:720px){
  .nav{flex-wrap:wrap;gap:10px 0;padding:12px 16px}
  .nav ul{gap:16px;font-size:9px;letter-spacing:.16em;width:100%;order:3;padding-top:4px}
  .nav .theme{margin-left:0}
}

/* ——— page shell ——— */
main.page{position:relative;z-index:1;max-width:900px;margin:0 auto;padding:170px 24px 120px}
.kicker{font-size:10px;letter-spacing:.32em;text-transform:uppercase;color:var(--accent);margin-bottom:22px;display:flex;gap:14px;flex-wrap:wrap}
.kicker span+span::before{content:"·";margin-right:14px;color:var(--ui-dim)}
h1{font-size:clamp(26px,4vw,38px);line-height:1.2;color:var(--ink-hi);font-weight:700;margin-bottom:18px;letter-spacing:-.005em}
h2{font-size:clamp(20px,2.6vw,26px);line-height:1.3;color:var(--ink-hi);font-weight:700;margin:0 0 18px}
h3{font-size:13px;letter-spacing:.08em;color:var(--ink-hi);font-weight:700;margin:26px 0 8px}
.dek{font-size:15px;line-height:1.8;color:var(--ui);margin-bottom:36px;padding-bottom:28px;border-bottom:1px solid var(--hairline);max-width:var(--measure)}
p{font-size:14px;line-height:1.95;margin-bottom:20px;max-width:var(--measure)}
.label{font-size:10px;letter-spacing:.34em;text-transform:uppercase;color:var(--ui);margin:48px 0 18px;padding-top:24px;border-top:1px solid var(--hairline)}
.dek+.label{border-top:0;padding-top:0;margin-top:0}
ul.plain{list-style:none;margin:0 0 20px}
ul.plain li{font-size:14px;line-height:1.9;padding-left:18px;position:relative;max-width:var(--measure)}
ul.plain li::before{content:"·";position:absolute;left:0;color:var(--accent)}
.act{display:inline-block;border:1px solid var(--hairline);padding:12px 22px;font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--ink-hi);transition:border-color .3s,color .3s;margin:6px 14px 6px 0}
.act:hover,.act:focus-visible{border-color:var(--accent);color:var(--accent);border-bottom-color:var(--accent)}
.act.primary{border-color:var(--accent);color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1px;background:var(--hairline);border:1px solid var(--hairline);margin:8px 0 28px}
.grid div{background:var(--bg);padding:16px 16px;font-size:12px;letter-spacing:.06em;color:var(--ink-hi);line-height:1.5}
.grid div small{display:block;color:var(--ui-dim);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;margin-top:6px}
.prov{display:grid;grid-template-columns:1fr 1fr;gap:0 56px;margin:14px 0 30px;padding-top:26px;border-top:1px solid var(--hairline)}
.prov h5{font-size:9.5px;letter-spacing:.34em;text-transform:uppercase;color:var(--accent);font-weight:400;margin-bottom:10px}
.prov ul{list-style:none}
.prov li{font-size:13.5px;line-height:1.6;color:var(--ink-hi);letter-spacing:.02em;border-bottom:1px solid var(--hairline);padding:9px 0}
.prov li:last-child{border-bottom:0}
@media (max-width:640px){.prov{grid-template-columns:1fr;gap:26px 0}}
mark.tk{background:transparent;color:var(--accent);border-bottom:1px dashed var(--accent);padding:0 2px}
.note{font-size:11.5px;line-height:1.8;color:var(--ui)}

/* ——— landing sections (over the field) ——— */
section.band{position:relative;z-index:1;padding:110px 24px}
section.band .in{max-width:900px;margin:0 auto}
section.band.first{background:linear-gradient(to bottom,rgba(4,7,11,0) 0%,var(--veil) 32%,var(--veil) 100%);padding-top:180px}
[data-theme="light"] section.band.first{background:linear-gradient(to bottom,rgba(245,246,244,0) 0%,var(--veil) 32%,var(--veil) 100%)}
section.band.veil{background:var(--veil)}
section.band .n{font-size:10px;letter-spacing:.34em;text-transform:uppercase;color:var(--accent);margin-bottom:22px}
section.band h2{font-size:clamp(22px,3vw,32px);margin-bottom:24px}
.scroll-hint{position:absolute;left:50%;bottom:26px;bottom:calc(26px + env(safe-area-inset-bottom));transform:translateX(-50%);z-index:5;
  font-size:9px;letter-spacing:.34em;text-transform:uppercase;color:var(--ui-dim);pointer-events:none;
  animation:hint 3.4s ease-in-out infinite}
@keyframes hint{0%,100%{opacity:.35;transform:translate(-50%,0)}50%{opacity:.9;transform:translate(-50%,6px)}}
@media (prefers-reduced-motion:reduce){.scroll-hint{animation:none;opacity:.6}html{scroll-behavior:auto}}
@media (max-width:720px){section.band{padding:80px 18px}section.band.first{padding-top:140px}main.page{padding:150px 18px 90px}}

/* ——— footer ——— */
footer.site{position:relative;z-index:1;background:var(--bg);border-top:1px solid var(--hairline);padding:56px 24px 40px;font-size:11px;letter-spacing:.06em;color:var(--ui)}
footer.site .in{max-width:900px;margin:0 auto;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px}
footer.site h4{font-size:9.5px;letter-spacing:.32em;text-transform:uppercase;color:var(--ui-dim);margin-bottom:12px}
footer.site ul{list-style:none}
footer.site li{margin-bottom:8px;line-height:1.6}
footer.site a{color:var(--ui)}footer.site a:hover{color:var(--ink-hi);border-bottom-color:var(--ink-hi)}
footer.site .mark b{color:var(--ink-hi);letter-spacing:.32em;font-size:10px;text-transform:uppercase}
footer.site .legal{max-width:900px;margin:40px auto 0;padding-top:20px;border-top:1px solid var(--hairline);font-size:10px;letter-spacing:.06em;color:var(--ui-dim);line-height:1.8}
@media (max-width:720px){footer.site .in{grid-template-columns:1fr;gap:26px}}

/* ——— print: static pages become clean documents ——— */
@media print{
  #field,.nav,.scroll-hint{display:none!important}
  html,body{background:#fff!important;color:#111!important}
  :root{--bg:#fff;--ink-hi:#000;--ink:#111;--ui:#444;--ui-dim:#777;--hairline:#bbb;--accent:#8a4500}
  main.page{padding:0;max-width:none} a{color:#111;border:0} a[href^="http"]::after{content:" (" attr(href) ")";color:#555;font-size:9pt}
  footer.site{display:none}
}