/* =============================================================
   BASE — Global element defaults
   ============================================================= */

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  color: var(--color-text-on-light);
  background-color: var(--color-bg-light);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-on-light);
}

p {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
}

a {
  transition: color var(--transition-base), opacity var(--transition-base);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Fade-in animation for Intersection Observer */
.fade-in {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 500ms ease, transform 500ms ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}