/* ============================================================
   BASE — element defaults built on the SFC token system.
   Kept light: sets the page surface, the Effra type defaults,
   and a few editorial primitives. Consumers can override freely.
   ============================================================ */

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: var(--fw-regular);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: var(--ls-body);
  color: var(--text-body);
  background: var(--surface-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern" 1, "liga" 1, "tnum" 0;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--text-strong);
  font-weight: var(--fw-bold);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-heading);
  text-wrap: balance;
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); font-weight: var(--fw-medium); }
h4 { font-size: var(--fs-h4); font-weight: var(--fw-medium); }

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

a { color: var(--text-accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ---- Editorial helpers (opt-in classes) ----------------- */
.sfc-overline {
  font-size: var(--fs-overline);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-overline);
  text-transform: uppercase;
  color: var(--text-muted);
}

.sfc-display {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-display-m);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-display);
  color: var(--text-strong);
}

.sfc-tnum { font-feature-settings: "tnum" 1; letter-spacing: var(--ls-tabular); }

::selection { background: var(--sfc-peach); color: var(--ink-900); }