/* ==========================================================================
   AzureIA — Base : reset, typographie, utilitaires, animations d'apparition
   ========================================================================== */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

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

img {
  height: auto;
}

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

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
  padding: 0;
}

::selection {
  background: rgba(41, 189, 255, 0.28);
  color: var(--nuit);
}

:focus-visible {
  outline: 2px solid var(--azur);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- Typographie ---- */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-text);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

/* Mot ou groupe de mots mis en valeur dans les titres */
.text-accent {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ---- Mise en page ---- */
.container {
  width: min(100% - 2 * var(--gutter), var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - 2 * var(--gutter), var(--container-narrow));
}

.section {
  padding-block: var(--section-y);
}

.section--dark {
  background: var(--nuit);
  color: var(--color-on-dark);
}

.section--dark h2,
.section--dark h3 {
  color: var(--blanc);
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--nuit);
  color: var(--blanc);
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform var(--dur-base) var(--ease-out);
}

.skip-link:focus-visible {
  transform: none;
}

.sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* ---- Apparitions au scroll ----
   Le contenu reste visible sans JavaScript : l'état masqué n'est appliqué
   que lorsque la classe .js est présente sur <html>. */
.js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 32px, 0);
  transition:
    opacity var(--dur-slow) var(--ease-out),
    transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0s);
}

.js [data-reveal="fade"] {
  transform: none;
}

.js [data-reveal="scale"] {
  transform: translate3d(0, 20px, 0) scale(0.97);
}

.js [data-reveal="media"] {
  transform: translate3d(0, 40px, 0) scale(0.98);
  transition-duration: 1.1s;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}