/* ==========================================================================
   Hyphen - base.css
   Styles globaux : document, typographie, liens, focus et classes utilitaires.
   ========================================================================== */

html {
  font-family: var(--font-sans);
  font-size: 100%;
  background-color: var(--color-background);
}

body {
  color: var(--color-text);
  background-color: var(--color-background);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-normal);
}

/* Sécurité globale box-sizing */

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

/* --------------------------------------------------------------------------
   Sélection de texte
   -------------------------------------------------------------------------- */

::selection {
  color: var(--color-primary-dark);
  background-color: var(--color-accent-light);
}

/* --------------------------------------------------------------------------
   Typographie
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  text-wrap: balance;
}

h1 {
  max-width: 12ch;
  font-size: clamp(var(--font-size-2xl), 6vw, var(--font-size-3xl));
  letter-spacing: -0.04em;
}

h2 {
  max-width: 18ch;
  font-size: clamp(var(--font-size-xl), 4vw, var(--font-size-2xl));
  letter-spacing: -0.03em;
}

h3 {
  font-size: var(--font-size-lg);
  letter-spacing: -0.02em;
}

h4 {
  font-size: var(--font-size-md);
}

p {
  max-width: 68ch;
  color: var(--color-text-muted);
}

strong,
b {
  color: var(--color-text);
  font-weight: var(--font-weight-bold);
}

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

/* --------------------------------------------------------------------------
   Liens
   -------------------------------------------------------------------------- */

a {
  color: var(--color-primary);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

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

main a:not([class]) {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Focus clavier
   -------------------------------------------------------------------------- */

:focus {
  outline: none;
}

:focus-visible {
  outline: var(--focus-outline-width) solid var(--focus-outline-color);
  outline-offset: var(--focus-outline-offset);
}

/* --------------------------------------------------------------------------
   Formulaires : base minimale
   -------------------------------------------------------------------------- */

input,
select,
textarea {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  color: var(--color-text);
  background-color: var(--color-white);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
}

textarea {
  resize: vertical;
}

label {
  color: var(--color-primary-dark);
  font-weight: var(--font-weight-semibold);
}

button,
input,
select,
textarea {
  letter-spacing: inherit;
}

/* --------------------------------------------------------------------------
   Classes utilitaires globales
   -------------------------------------------------------------------------- */

.text-center {
  text-align: center;
}

.text-center p,
.text-center h1,
.text-center h2,
.text-center h3 {
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}

.skip-link {
  position: fixed;
  top: var(--space-md);
  left: var(--space-md);
  z-index: var(--z-modal);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-sm) var(--space-md);
  color: var(--color-primary-dark);
  background-color: var(--color-accent);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform var(--transition-base);
}

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

/* --------------------------------------------------------------------------
   Ajustements responsive globaux
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  h1 {
    max-width: 13ch;
  }

  h2 {
    max-width: 20ch;
  }
}