*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--body-size);
  font-weight: var(--body-weight);
  line-height: var(--body-lh);
  color: var(--text-dim);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, video, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
ul, ol { list-style: none; }

/* ── Typography ── */
.display {
  font-family: var(--font-sans);
  font-size: var(--display-size);
  font-weight: var(--display-weight);
  line-height: var(--display-lh);
  letter-spacing: var(--display-ls);
  color: var(--text);
}

.h1 {
  font-family: var(--font-sans);
  font-size: var(--h1-size);
  font-weight: var(--h1-weight);
  line-height: var(--h1-lh);
  letter-spacing: var(--h1-ls);
  color: var(--text);
}

.h2 {
  font-family: var(--font-sans);
  font-size: var(--h2-size);
  font-weight: var(--h2-weight);
  line-height: var(--h2-lh);
  letter-spacing: var(--h2-ls);
  color: var(--text);
}

.h3 {
  font-family: var(--font-sans);
  font-size: var(--h3-size);
  font-weight: var(--h3-weight);
  line-height: var(--h3-lh);
  color: var(--text);
}

.body-lg {
  font-size: var(--body-lg-size);
  font-weight: var(--body-lg-weight);
  line-height: var(--body-lg-lh);
  color: var(--text-dim);
}

/* Eyebrows: monospace for technical differentiation */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--eyebrow-size);
  font-weight: var(--eyebrow-weight);
  letter-spacing: var(--eyebrow-ls);
  text-transform: uppercase;
  color: var(--text-muted);
}

.mono-sm {
  font-family: var(--font-mono);
  font-size: var(--mono-size);
  color: var(--text-faint);
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

/* ── Divider ── */
.section-rule {
  width: 100%;
  max-width: 48px;
  height: 1px;
  background: var(--text-faint);
  margin: 0 auto;
  border: none;
}

/* ── Accessibility ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--text);
  color: var(--bg);
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 500;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 16px; }

:focus-visible {
  outline: 1px solid var(--text-muted);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ── Reduced Motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── Print ── */
@media print {
  body { background: #fff; color: #000; }
  .skip-link, nav { display: none !important; }
  .display, .h1, .h2, .h3 { color: #000; }
}