/* ===== Base ===== */

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  font-size: var(--text-md);
  font-weight: 400;
  background-color: var(--bg);
  color: var(--text);
  transition:
    background-color var(--transition-slow),
    color var(--transition-slow);
}

/* ===== Headings ===== */

h1 {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.1;
}

h2 {
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
}

h3 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.3;
}

h4, h5, h6 {
  font-weight: 600;
  line-height: 1.4;
}

small {
  font-size: var(--text-sm);
}

/* ===== Focus ===== */

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

/* ===== Skip to Content ===== */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--s-4);
  z-index: 9999;
  padding: var(--s-2) var(--s-4);
  background: var(--accent);
  color: var(--navy);
  font-weight: 600;
  border-radius: var(--r-sm);
  transition: top var(--transition);
}

.skip-link:focus {
  top: var(--s-4);
}

/* ===== Container ===== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ===== Visually Hidden ===== */

.visually-hidden {
  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;
  }
}