/* base.css – Global base styles */

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
}

@supports not (overflow-x: clip) {
  body {
    overflow-x: hidden;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: 0;
  color: var(--color-text);
}

h1 { font-size: clamp(2.15rem, 4.8vw, 4rem); }
h2 { font-size: clamp(1.65rem, 2.8vw, 2.35rem); }
h3 { font-size: 1.14rem; }

p {
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

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

strong {
  font-weight: var(--weight-semibold);
  color: var(--color-text);
}

/* === Accessibility Helpers === */

.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;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: var(--weight-semibold);
  font-size: var(--text-sm);
  z-index: var(--z-modal);
  text-decoration: none;
  transition: top var(--transition-normal);
}

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

/* === 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;
  }
}