/* ==========================================================================
   base.css — reset léger + styles globaux
   ========================================================================== */

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

* {
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font);
  background-color: var(--cobalt-bg);
  color: var(--cobalt-text);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;   /* aucune barre horizontale */
}

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

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

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

h1, h2, h3, h4 {
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--cobalt-text);
}

p {
  color: var(--cobalt-text-dim);
}

ul {
  list-style: none;
}

/* Conteneur centré */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* Accessibilité : focus clavier visible partout */
:focus-visible {
  outline: 2px solid var(--cobalt-blue-soft);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Lien d'évitement (skip link) */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--cobalt-blue);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Élément masqué visuellement mais lisible par lecteur d'écran */
.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;
}

/* Espacement vertical entre grandes sections */
.section {
  padding-block: var(--space-section);
}
.section--tight {
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

/* Titres de section */
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
}

.eyebrow {
  color: var(--cobalt-blue-soft);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--cobalt-text-dim);
  max-width: 60ch;
}

/* Respect de la préférence "mouvement réduit" */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}