/* Reset + base typography. Stable across pages. */
*, *::before, *::after { box-sizing: border-box; }
.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; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); font-weight: 600; letter-spacing: -0.015em; margin: 0 0 0.5em; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--page-max); margin: 0 auto; padding: 0 1.5rem; }
.lead { font-size: 1.125rem; color: var(--color-muted); }
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  transition: opacity .15s ease;
}
.btn--accent { background: var(--color-accent); color: var(--color-paper); }
.btn--accent:hover { opacity: 0.9; text-decoration: none; }