/* ═══════════════════════════════════════════
 * DESIGN TOKENS — Corporate Dark Data
 * ═══════════════════════════════════════════ */

/* Accessibility: visually hidden but crawlable */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:root {
  /* Colors */
  --bg: #0A0C10;
  --panel: #131825;
  --panel2: #101520;
  --edge: #222A3A;
  --ink: #F0F2F6;
  --ink-mid: #BFC5D2;
  --ink-faint: #7E8698;
  --gold: #DDB96E;
  --gold-d: #B89454;
  --gold-soft: rgba(221,185,110,.12);
  --teal: #5BC8B8;
  --teal-d: #3FA595;
  --red: #E0644F;
  --red-d: #B84F3E;
  --purple: #9B7BC7;

  /* Typography scale — major third (1.25 ratio) */
  --fs-xs: 11px;
  --fs-sm: 13px;
  --fs-base: 15px;
  --fs-md: 17px;
  --fs-lg: 21px;
  --fs-xl: 25px;
  --fs-2xl: 31px;
  --fs-3xl: 38px;
  --fs-4xl: 48px;
  --fs-hero: 72px;

  /* Font families */
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Hanken Grotesk', -apple-system, system-ui, sans-serif;
  --mono: 'IBM Plex Mono', 'SF Mono', Menlo, monospace;

  /* Spacing scale — 4px base */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;
  --sp-24: 96px;
  --sp-32: 128px;

  /* Borders & radii */
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 8px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.5);
  --glow-gold: 0 0 20px rgba(221,185,110,.3);
  --glow-teal: 0 0 20px rgba(91,200,184,.3);
  --glow-red: 0 0 20px rgba(224,100,79,.3);

  /* Motion */
  --ease-out: cubic-bezier(.2,.8,.3,1);
  --ease-in-out: cubic-bezier(.4,0,.2,1);
  --ease-expo: cubic-bezier(.16,1,.3,1);
  --ease-spring: cubic-bezier(.34,1.56,.64,1);
  --dur-fast: .15s;
  --dur-base: .25s;
  --dur-slow: .5s;
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; line-height: 1.2; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }
video { display: block; }

/* Focus */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* Reset for semantic tags */
blockquote { margin: 0; padding: 0; font-style: inherit; }
h3.mlt-n, h3.conf-n { font-weight: inherit; margin: 0; }