/* ============================================================
   Build Know How — Base element defaults
   Applies the warm sand ground + serif/sans pairing globally.
   ============================================================ */

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

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

body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: var(--w-medium);
  color: var(--text-strong);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  margin: 0 0 0.5em;
  text-wrap: balance;
}

p { margin: 0 0 1em; text-wrap: pretty; }

a { color: var(--text-brand); text-decoration: none; }
a:hover { color: var(--accent-hover); }

::selection { background: var(--orange-200); color: var(--ink-900); }

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

hr {
  border: none;
  border-top: var(--border-hair) solid var(--border-subtle);
  margin: var(--space-6) 0;
}