/* ==========================================================================
   Futur Bat - Layout V2 : reset, base, container, utilitaires
   Theme sombre charbon/pierre. Mobile-first. Breakpoints : 768 / 1024 / 1440.
   ========================================================================== */

/* ----- Reset ----- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + var(--sp-4));
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: var(--lh-body);
  color: var(--text);
  background-color: var(--bg);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ----- Media ----- */
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }

/* Traitement V2.2 : photos laissees lumineuses, effet galerie sur fond sombre */
figure img {
  filter: contrast(1.03) saturate(1.05);
  transition: filter var(--duration-slow) var(--ease-out);
}

/* ----- Liens et interactifs ----- */
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
a:hover { color: var(--accent-light); }

button { font: inherit; color: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
ul, ol { list-style: none; padding: 0; }

/* ----- Focus visible (WCAG AA) ----- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
:focus:not(:focus-visible) { outline: none; }

/* ----- Typographie de base ----- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--text-strong);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); line-height: var(--lh-display); letter-spacing: var(--ls-display); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }

p { text-wrap: pretty; }
strong, b { font-weight: 500; color: var(--text-strong); }
em { font-style: italic; }

/* ----- Skip link ----- */
.skip-link {
  position: absolute;
  top: var(--sp-2);
  left: var(--sp-2);
  z-index: var(--z-modal);
  padding: var(--sp-2) var(--sp-4);
  background: var(--accent);
  color: var(--bg);
  font-size: var(--fs-small);
  font-weight: 500;
  text-decoration: none;
  transform: translateY(-150%);
  transition: transform var(--duration-fast) var(--ease-out);
}
.skip-link:focus { transform: translateY(0); color: var(--bg); }

/* ----- Container ----- */
.nav-inner,
.footer-inner,
.section-inner,
.error-inner {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

main { display: block; }

/* ----- Rythme vertical des sections ----- */
.section { padding-block: var(--sp-7); }
@media (min-width: 768px) { .section { padding-block: var(--sp-8); } }
@media (min-width: 1024px) { .section { padding-block: var(--sp-9); } }
.section-airy { padding-block: var(--sp-8); }
@media (min-width: 768px) { .section-airy { padding-block: var(--sp-9); } }
@media (min-width: 1024px) { .section-airy { padding-block: var(--sp-10); } }

/* Fonds de section alternes */
.section-warm { background-color: var(--bg-alt); }
.section-ink { background-color: var(--bg-deep); }

/* ----- En-tete de section ----- */
.section-head {
  max-width: 54rem;
  margin-bottom: var(--sp-6);
}
.section-kicker {
  display: inline-block;
  margin-bottom: var(--sp-3);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  font-size: var(--fs-tag);
  font-weight: 500;
  color: var(--accent);
}
.section-intro {
  margin-top: var(--sp-3);
  color: var(--muted);
  font-size: var(--fs-h4);
  line-height: var(--lh-body);
}
.section-title { font-size: var(--fs-h2); }
.section-action { margin-top: var(--sp-5); }

/* ----- Grilles reutilisables ----- */
.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--sp-5);
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ----- Mise en page texte + media (deux colonnes desktop) ----- */
.intro-layout,
.zone-layout,
.method-layout,
.address-layout {
  display: grid;
  gap: var(--sp-6);
}
@media (min-width: 1024px) {
  .intro-layout,
  .zone-layout,
  .address-layout {
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
    align-items: center;
  }
  .method-layout {
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--sp-8);
    align-items: start;
  }
}

/* ----- Prose (colonne de texte lisible) ----- */
.prose { max-width: 46rem; }
.prose-centered { margin-inline: auto; text-align: center; }
.prose p + p { margin-top: var(--sp-4); }

/* ----- Utilitaires ----- */
.text-muted { color: var(--muted); }
.text-accent { color: var(--accent); }
.uppercase {
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  font-size: var(--fs-tag);
  font-weight: 500;
}
.display-h1 { font-family: var(--font-display); font-size: var(--fs-h1); line-height: var(--lh-display); }
.display-h2 { font-family: var(--font-display); font-size: var(--fs-h2); line-height: var(--lh-tight); }

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