/* ==========================================================================
   SkAI Tech — Base
   Reset minimal + styles fondamentaux (typo, liens, focus, sélection).
   Dépend de tokens.css.
   ========================================================================== */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

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

img,
svg,
video {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

/* --------------------------------------------------------------------------
   Titres
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
  line-height: var(--leading-tight);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  text-wrap: balance;
}

h1 {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--text-lg);
}

h4 {
  font-size: var(--text-base);
}

p {
  color: var(--text-secondary);
}

small {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--bg-subtle);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 0.1em 0.35em;
}

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

a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--text-link-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Focus visible — anneau bleu marque, jamais supprimé sans remplacement
   -------------------------------------------------------------------------- */

:focus-visible {
  outline: none;
  box-shadow: var(--ring-focus);
  border-radius: var(--radius-sm);
}

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

::selection {
  background: var(--blue-200);
  color: var(--blue-950);
}

/* --------------------------------------------------------------------------
   Conteneurs de mise en page
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* --------------------------------------------------------------------------
   Utilitaires d'accessibilité
   -------------------------------------------------------------------------- */

.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;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}