:root {
  --bg: #0c0c0b;
  --surface: #151514;
  --line: #2a2a28;
  --line-soft: #1e1e1c;
  --text: #f9f5ef;
  --muted: #959089;
  --faint: #55544f;
  --accent: #e6e1d9;

  /* one color per platform step, from the hero's stock palette (6-digit hex:
     platform.js parses them to blend the beam) */
  --step-1: #d2d3d5;
  --step-2: #ecc974;
  --step-3: #97e47a;
  --step-4: #f4f4f6;
  /* per-stock tints, matching the hero shapes */
  --stock-spcx: #e6e6ea;
  --stock-meta: #5b8cff;
  --stock-nvda: #76b900;
  --stock-baba: #ecc974;
  --stock-skhy: #ff5560;

  --sans: "Sohne", system-ui, sans-serif;
  --mono: "Sohne Mono", ui-monospace, monospace;

  /* 20px outer frame + 40px inner padding = content starts at x=60 */
  --frame: max(16px, calc((100vw - 1400px) / 2));
  --pad: clamp(16px, 2.8vw, 40px);
  --gutter: calc(var(--frame) + var(--pad));
  --section-y: clamp(56px, 5.6vw, 80px);
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }

.container { padding-inline: var(--gutter); }
.frame { padding-inline: var(--frame); }
.inner { padding: var(--section-y) var(--pad); }
.bordered { border-top: 1px solid var(--line); }
.muted { color: var(--muted); }

.heading {
  font: 400 clamp(36px, 3.6vw, 52px)/1.05 var(--sans);
  letter-spacing: -0.045em;
}
.eyebrow {
  font: 400 14px/1.15 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  white-space: nowrap;
  border: 1px solid var(--line);
  border-radius: 999px;
  font: 400 12px/16px var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.btn:hover { border-color: var(--muted); }
.btn--solid { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.btn--solid:hover { background: #fff; }
.btn--accent { background: var(--step-2); color: var(--bg); border-color: var(--step-2); }
.btn--sm { height: 32px; padding: 0 14px; font-size: 12px; letter-spacing: 0.06em; }
.btn--ghost { border-color: transparent; }
.btn--icon { width: 40px; padding: 0; justify-content: center; }
.btn--icon svg { width: 15px; height: 15px; fill: currentColor; }
.btn--sm.btn--icon { width: 32px; }
.btn--sm.btn--icon svg { width: 13px; height: 13px; }
.btn--ghost:hover { border-color: transparent; background: rgb(255 255 255 / 0.08); }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 40px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}
.footer__end { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.footer__x { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); transition: color 0.2s; }
.footer__x:hover { color: var(--text); }
.footer__x svg { width: 13px; height: 13px; fill: currentColor; }

@media (max-width: 860px) {
  .footer { flex-direction: column; }
}
@media (max-width: 640px) {
  :root { --frame: 8px; --pad: 20px; }
}