/* Luma Systems — redesign preview. Self-contained, no build step. */
:root{
  --blue:#2563EB; --blue-dark:#1E40AF; --blue-glow:#3b82f6;
  --amber:#FBBF24; --golden:#F59E0B;
  --ink:#0a0e17; --ink-2:#0f1623; --panel:#131c2b; --line:#1f2a3d;
  --text:#e8edf6; --muted:#9aa7bd; --white:#fff;
  --radius:16px; --maxw:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);background:var(--ink);color:var(--text);
  line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(10,14,23,.72);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px}
.brand img{height:30px;width:auto;display:block}
.brand span{font-size:18px}
.navlinks{display:flex;gap:30px;align-items:center}
.navlinks a{color:var(--muted);font-size:15px;font-weight:500;transition:color .2s}
.navlinks a:hover,.navlinks a.active{color:var(--white)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  padding:11px 22px;border-radius:12px;cursor:pointer;border:1px solid transparent;transition:.2s;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;
  box-shadow:0 8px 24px -8px rgba(37,99,235,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px -8px rgba(37,99,235,.85)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
.btn-ghost:hover{border-color:var(--blue-glow);color:#fff}

/* ---------- HERO ---------- */
.hero{position:relative;padding:120px 0 110px;text-align:center;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(700px 360px at 50% -8%,rgba(37,99,235,.32),transparent 70%),
    radial-gradient(600px 320px at 85% 20%,rgba(251,191,36,.10),transparent 65%);
}
.grid-bg{position:absolute;inset:0;z-index:0;opacity:.35;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 75%)}
.hero .wrap{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;
  color:var(--amber);background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.25);
  padding:7px 15px;border-radius:999px;margin-bottom:30px;letter-spacing:.4px;text-transform:uppercase}
.dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px var(--amber)}
h1.title{font-size:clamp(40px,6.4vw,78px);line-height:1.04;font-weight:800;letter-spacing:-1.6px;margin-bottom:26px}
h1.title .accent{background:linear-gradient(120deg,var(--blue-glow),var(--amber));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.sub{max-width:660px;margin:0 auto 40px;font-size:clamp(17px,2.1vw,21px);color:var(--muted)}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- LOGO STRIP ---------- */
.silicons{margin-top:78px;display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:9px;padding:11px 20px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);font-weight:600;font-size:15px;color:var(--text)}
.chip small{color:var(--muted);font-weight:500}
.chip .led{width:8px;height:8px;border-radius:50%;background:#2dd4a7;box-shadow:0 0 8px #2dd4a7}
.chip.soon .led{background:#6b7689;box-shadow:none}
.chip.soon{opacity:.6}

/* ---------- SECTION ---------- */
.section{padding:96px 0;border-top:1px solid var(--line)}
.section h2{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.8px;text-align:center;margin-bottom:14px}
.section .lead{text-align:center;color:var(--muted);max-width:620px;margin:0 auto 56px;font-size:18px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:linear-gradient(180deg,var(--ink-2),var(--ink));border:1px solid var(--line);
  border-radius:var(--radius);padding:30px 28px;transition:.25s}
.card:hover{border-color:rgba(59,130,246,.5);transform:translateY(-4px);box-shadow:0 18px 40px -22px rgba(37,99,235,.6)}
.card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:22px;
  background:rgba(37,99,235,.13);border:1px solid rgba(37,99,235,.3);margin-bottom:18px}
.card h3{font-size:20px;font-weight:700;margin-bottom:8px}
.card p{color:var(--muted);font-size:15.5px}

/* ---------- TABS (details page) ---------- */
.page-head{padding:84px 0 40px;text-align:center;position:relative}
.page-head::before{content:"";position:absolute;inset:0;
  background:radial-gradient(600px 300px at 50% -20%,rgba(37,99,235,.28),transparent 70%)}
.page-head .wrap{position:relative}
.page-head h1{font-size:clamp(34px,5vw,56px);font-weight:800;letter-spacing:-1px;margin-bottom:14px}
.page-head p{color:var(--muted);font-size:19px;max-width:600px;margin:0 auto}
.tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin:46px 0 0;
  border:1px solid var(--line);background:var(--ink-2);padding:7px;border-radius:14px;width:fit-content;margin-left:auto;margin-right:auto}
.tab{padding:11px 26px;border-radius:9px;font-weight:600;font-size:15px;color:var(--muted);
  cursor:pointer;border:none;background:transparent;transition:.2s;display:flex;align-items:center;gap:9px}
.tab:hover{color:var(--text)}
.tab.active{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;
  box-shadow:0 6px 18px -8px rgba(37,99,235,.8)}
.tab .badge{font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;background:rgba(255,255,255,.15)}
.panel{display:none;padding:56px 0 110px}
.panel.active{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.empty{max-width:560px;margin:40px auto;text-align:center;background:var(--ink-2);
  border:1px dashed var(--line);border-radius:var(--radius);padding:64px 32px}
.empty .big{font-size:42px;margin-bottom:14px}
.empty h3{font-size:22px;margin-bottom:8px}
.empty p{color:var(--muted)}

/* ---------- COMPAT TABLE ---------- */
.panel-intro{max-width:1000px;margin:0 auto 18px;text-align:center;font-size:18px;
  font-weight:600;color:var(--text)}


.tbl-wrap{max-width:1000px;margin:0 auto;overflow-x:auto;border:1px solid var(--line);
  border-radius:var(--radius);background:var(--ink-2)}
table.compat{width:100%;border-collapse:collapse;font-size:15px;min-width:760px}
table.compat th,table.compat td{padding:15px 20px;text-align:left;border-bottom:1px solid var(--line)}
table.compat thead th{background:rgba(37,99,235,.10);color:var(--text);font-weight:700;
  font-size:13px;letter-spacing:.4px;text-transform:uppercase;white-space:nowrap}
table.compat tbody tr:last-child td{border-bottom:none}
table.compat tbody tr:hover{background:rgba(37,99,235,.05)}
table.compat td.family{font-weight:600}
table.compat td.model code{background:var(--panel);border:1px solid var(--line);
  padding:3px 9px;border-radius:7px;font-size:13.5px;color:#cbd5ea}
table.compat td.model a{text-decoration:none}
table.compat td.model a code{color:#8fb3ff;border-color:rgba(59,130,246,.35);transition:.15s}
table.compat td.model a:hover code{color:#bcd2ff;border-color:var(--blue-glow);background:rgba(37,99,235,.12)}
.status{display:inline-flex;align-items:center;gap:8px;font-weight:600;white-space:nowrap}
.status.ok{color:#34d399}
.status.run{color:var(--amber)}
.status.bad{color:#f87171}
.status .mk{font-size:15px}
td.note{color:var(--muted);font-size:14px}
table.compat td.params{font-variant-numeric:tabular-nums;font-weight:600;color:var(--text);white-space:nowrap}

/* ---------- NVIDIA STATEMENT ---------- */
.statement{max-width:680px;margin:30px auto;text-align:center;background:var(--ink-2);
  border:1px solid var(--line);border-radius:var(--radius);padding:64px 40px}
.statement .big{font-size:46px;margin-bottom:18px}
.statement h3{font-size:26px;font-weight:800;margin-bottom:10px}
.statement p{color:var(--muted);font-size:18px}

/* ---------- AMD BULLETS ---------- */
.bullets{max-width:780px;margin:10px auto;list-style:none;display:flex;flex-direction:column;gap:16px}
.bullets li{background:var(--ink-2);border:1px solid var(--line);border-left:3px solid var(--blue);
  border-radius:12px;padding:20px 22px;color:var(--text);font-size:16px;line-height:1.65}
.bullets li b{color:#fff}

/* ---------- CAPACITY OFFERS ---------- */
.offer{max-width:840px;margin:0 auto 24px;background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:34px 34px;text-align:left}
.offer h2.big{font-size:34px;font-weight:800;letter-spacing:-.6px;text-align:left;margin:0 0 6px}
.offer .ondemand-note{font-style:italic;color:var(--muted);margin-bottom:22px;font-size:16px}
.offer ol{margin:0;padding-left:22px;display:flex;flex-direction:column;gap:16px}
.offer ol li{font-size:17px;line-height:1.55}
.offer ol li b{color:#fff}
.offer .price{color:#34d399;font-weight:700}
.offer .reserve-item{display:inline-flex;align-items:center;gap:10px;background:var(--panel);
  border:1px solid var(--line);border-radius:12px;padding:14px 20px;font-weight:600;font-size:17px;margin-top:6px}
.offer h2.big .sub-paren{font-size:18px;font-weight:500;color:var(--muted);white-space:nowrap}
.offer .offer-line{font-size:24px;font-weight:600;margin:8px 0 0}
.offer .offer-line .price{font-size:26px}

/* ---------- DOCS PROSE ---------- */
.doc-actions{max-width:780px;margin:0 auto 26px;display:flex;justify-content:flex-end}
.prose{max-width:780px;margin:0 auto 90px;background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:48px 46px}
.prose h2{font-size:26px;font-weight:800;letter-spacing:-.4px;margin:34px 0 12px;text-align:left}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:18px;font-weight:700;margin:24px 0 10px}
.prose p{color:var(--muted);margin:0 0 16px;font-size:16px}
.prose ul{margin:0 0 18px;padding-left:22px;display:flex;flex-direction:column;gap:10px}
.prose li{color:var(--muted);font-size:16px;line-height:1.6}
.prose li b,.prose p b{color:var(--text)}
.prose code{background:var(--panel);border:1px solid var(--line);padding:2px 7px;border-radius:6px;
  font-size:14px;color:#cbd5ea}
.prose blockquote{margin:22px 0;padding:16px 22px;border-left:3px solid var(--amber);
  background:rgba(251,191,36,.06);border-radius:0 10px 10px 0;color:var(--text);font-size:17px;font-style:italic}
.prose hr{border:none;border-top:1px solid var(--line);margin:30px 0}

/* ---------- FOOTER ---------- */
.footer{border-top:1px solid var(--line);padding:46px 0;text-align:center;color:var(--muted);font-size:14px}
.footer .brand{justify-content:center;margin-bottom:14px;color:var(--text)}
.footer a{color:var(--muted)}.footer a:hover{color:#fff}

@media(max-width:820px){
  .navlinks{display:none}
  .cards{grid-template-columns:1fr}
  .hero{padding:86px 0 70px}
}