/* ============================================
   BASE.CSS — styles globaux (body, titres, texte, liens)
   ============================================ */

/* --- Document --- */

html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
  background-color: var(--color-bg);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: 400;
  line-height: var(--line-height-body);
  letter-spacing: var(--letter-spacing-body);
  color: var(--color-text);
}

/* --- Titres --- */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--line-height-heading);
  letter-spacing: var(--letter-spacing-heading);
  color: inherit;
  text-wrap: balance;
}

/* --- Texte --- */

p {
  text-wrap: pretty;
}

strong {
  font-weight: 600;
}

/* --- Liens --- */

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

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

/* --- Images --- */

img {
  max-width: 100%;
  height: auto;
}

/* --- Accessibilité --- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-light);
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}