/* ============================================================
   LUMEN platform design system. Dawn after storm: deep clinical
   ink, ember accent, paper text, NVIDIA green for the sovereign
   hardware surfaces. Apple-scale restraint, real density.
   ============================================================ */
:root{
  --ink:#06080b; --ink-1:#0a0e13; --ink-2:#10151c; --ink-3:#161d26;
  --line:#1d2530; --line-2:#2a3542;
  --paper:#f4ede2; --paper-2:#c7bdac; --paper-3:#8b8474;
  --ember:#e08a44; --ember-soft:#d68748; --ember-deep:#7a3f17;
  --teal:#5ad6c6; --teal-deep:#1f6f66;
  --nvidia:#76b900;
  --alarm:#e0594e; --good:#46c98a; --warn:#e0b341;
  --r-s:8px; --r-m:14px; --r-l:20px; --r-xl:28px;
  --shadow:0 24px 60px -36px rgba(0,0,0,.8);
  --glow-ember:0 0 0 1px rgba(224,138,68,.18), 0 20px 50px -30px rgba(224,138,68,.35);
  --maxw:1240px;
  --topbar-h:60px;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono","IBM Plex Mono",Menlo,monospace;
  --serif:"IBM Plex Serif",Georgia,"Times New Roman",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{
  background:var(--ink); color:var(--paper); font-family:var(--font);
  line-height:1.5; -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
  min-height:100vh; overflow-x:hidden;
}
body[dir="rtl"]{direction:rtl}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
img,svg{display:block;max-width:100%}
.skip{position:fixed;top:8px;inset-inline-start:12px;transform:translateY(-220%);background:var(--ember);color:#1a0e05;padding:8px 14px;border-radius:8px;z-index:200;transition:transform .15s}
.skip:focus{transform:translateY(0)}
::selection{background:rgba(224,138,68,.3)}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--ember);outline-offset:3px;border-radius:8px}
button:focus-visible,a:focus-visible{outline:2px solid var(--ember);outline-offset:3px}

/* ---------- top bar ---------- */
.topbar{
  position:sticky; top:0; z-index:100; height:var(--topbar-h);
  display:flex; align-items:center; gap:18px; padding:0 clamp(16px,4vw,32px);
  background:rgba(6,8,11,.72); backdrop-filter:saturate(150%) blur(18px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand__mark{width:26px;height:26px;border-radius:8px;background:
  radial-gradient(circle at 34% 28%, #ffe9cf, var(--ember) 42%, var(--ember-deep) 88%);
  box-shadow:0 0 20px rgba(224,138,68,.5), inset 0 0 10px rgba(255,255,255,.3)}
.brand__word{font-weight:800;letter-spacing:.16em;font-size:16px}
.nav{display:flex;gap:2px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{
  padding:7px 12px;border-radius:9px;font-size:13.5px;color:var(--paper-2);
  white-space:nowrap;font-weight:500;transition:.18s;border:1px solid transparent;
}
.nav a:hover{color:var(--paper);background:var(--ink-2)}
.nav a.on{color:var(--paper);background:var(--ink-3);border-color:var(--line-2)}
.topbar__right{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-inline-start:auto}
.langset{display:flex;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.langset button{background:transparent;border:0;color:var(--paper-3);padding:6px 11px;font-size:12px;font-weight:600;transition:.15s}
.langset button.on{background:var(--ink-3);color:var(--paper)}
.langset button:hover{color:var(--paper)}
.navtoggle{display:none;flex-direction:column;gap:4px;background:transparent;border:0;padding:8px}
.navtoggle span{width:22px;height:2px;background:var(--paper);border-radius:2px;transition:.2s}

/* ---------- layout primitives ---------- */
main{min-height:calc(100vh - var(--topbar-h))}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:clamp(40px,7vw,86px) 0}
.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--ember);font-weight:700}
body[dir="rtl"] .eyebrow{letter-spacing:.06em}
h1{font-size:clamp(34px,6vw,72px);font-weight:800;letter-spacing:-.025em;line-height:1.03}
h2{font-size:clamp(26px,3.8vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.08}
h3{font-size:clamp(18px,2vw,23px);font-weight:700;letter-spacing:-.01em}
.lead{font-size:clamp(17px,1.9vw,22px);color:var(--paper-2);max-width:60ch}
.muted{color:var(--paper-3)}
.accent{color:var(--ember)} .green{color:var(--nvidia)} .tealc{color:var(--teal)}
.grid{display:grid;gap:18px}
.grid>*{min-width:0}
.g2{grid-template-columns:repeat(2,1fr)} .g3{grid-template-columns:repeat(3,1fr)} .g4{grid-template-columns:repeat(4,1fr)}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.spacer{height:1px;background:var(--line);margin:0}

/* ---------- buttons + pills ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:650;font-size:15px;border:1px solid transparent;transition:.18s;white-space:nowrap}
.btn--primary{background:linear-gradient(180deg,var(--ember),#c5762f);color:#1a0e05;box-shadow:var(--glow-ember)}
.btn--primary:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn--ghost{border-color:var(--line-2);color:var(--paper);background:var(--ink-2)}
.btn--ghost:hover{border-color:var(--ember);color:var(--paper)}
.pill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:999px;padding:6px 13px;font-size:12.5px;color:var(--paper-2);background:var(--ink-1)}
.pill b{color:var(--ember)} .pill--green b{color:var(--nvidia)}
.tag{font-size:11px;letter-spacing:.12em;text-transform:uppercase;font-weight:700}
.tag--good{color:var(--good)} .tag--alarm{color:var(--alarm)} .tag--warn{color:var(--warn)}

/* ---------- cards ---------- */
.card{background:linear-gradient(180deg,var(--ink-2),var(--ink-1));border:1px solid var(--line);border-radius:var(--r-l);padding:clamp(18px,2.4vw,26px)}
.card--glow{box-shadow:var(--glow-ember);border-color:var(--line-2)}
.card h3{margin-bottom:8px} .card p{color:var(--paper-2);font-size:15px}
.kicker-num{font-family:var(--mono);font-size:12px;color:var(--paper-3);letter-spacing:.1em}

/* ---------- view transitions ---------- */
#view{animation:viewin .5s cubic-bezier(.2,.7,.2,1)}
@keyframes viewin{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){#view{animation:none}*{scroll-behavior:auto!important}}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--ink-1);padding:30px 0;margin-top:40px}
.foot__in{max-width:var(--maxw);margin:0 auto;padding:0 clamp(16px,4vw,32px);display:flex;flex-wrap:wrap;gap:8px 22px;align-items:center;font-size:12.5px;color:var(--paper-3)}
.foot__brand{font-weight:800;letter-spacing:.16em;color:var(--paper-2)}
.foot__hint{margin-inline-start:auto;color:var(--ember-deep)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .g4{grid-template-columns:1fr 1fr} .g3{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav{position:fixed;inset:var(--topbar-h) 0 auto 0;flex-direction:column;background:var(--ink-1);border-bottom:1px solid var(--line);padding:10px;display:none;max-height:70vh;overflow:auto}
  .nav.open{display:flex}
  .nav a{font-size:15px;padding:11px 12px}
  .navtoggle{display:flex}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .langset button{padding:6px 9px}
}