/* ==========================================================================
   ACI — Alliance des Chauffeurs Internationaux
   Feuille de style principale
   --------------------------------------------------------------------------
   Sommaire :
   1. Variables & réinitialisation
   2. Typographie générale
   3. Mise en page / conteneurs
   4. En-tête & navigation
   5. Boutons & liens
   6. Sections communes
   7. Cartes
   8. Formulaires
   9. Pied de page
   10. Composants divers (fil d'ariane, encadrés, bouton retour en haut)
   11. Animations & accessibilité (prefers-reduced-motion)
   12. Media queries (responsive)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. VARIABLES & RÉINITIALISATION
   MODIFIABLE : couleurs et rayons de bordure de l'identité visuelle ACI
   -------------------------------------------------------------------------- */
:root {
  --bleu-marine: #07366F;
  --bleu-institutionnel: #104C9E;
  --dore: #D5A72B;
  --dore-fonce: #B8901F;
  --blanc: #FFFFFF;
  --gris-clair: #F5F7FA;
  --gris-bordure: #E1E6EE;
  --texte-fonce: #172033;
  --texte-gris: #4B5670;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --ombre-legere: 0 4px 18px rgba(7, 54, 111, 0.08);
  --ombre-moyenne: 0 10px 30px rgba(7, 54, 111, 0.12);

  --police-systeme: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;

  --largeur-max: 1180px;
  --transition-rapide: 0.2s ease;
  --transition-normale: 0.35s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  font-family: var(--police-systeme);
  color: var(--texte-fonce);
  background-color: var(--blanc);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

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

ul, ol {
  padding: 0;
  margin: 0;
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* Accessibilité clavier : focus visible sur tous les éléments interactifs */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--dore);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Lien d'évitement pour l'accessibilité clavier */
.lien-evitement {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--bleu-marine);
  color: var(--blanc);
  padding: 12px 20px;
  z-index: 2000;
  border-radius: 0 0 var(--radius-sm) 0;
}

.lien-evitement:focus {
  left: 0;
  top: 0;
}

/* --------------------------------------------------------------------------
   2. TYPOGRAPHIE
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.25;
  color: var(--bleu-marine);
  margin: 0 0 18px;
}

h1 {
  font-size: clamp(2.1rem, 4vw, 3.2rem);
  letter-spacing: -0.5px;
}

h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 16px;
  color: var(--texte-gris);
}

.texte-intro {
  font-size: 1.15rem;
  color: var(--texte-gris);
  max-width: 720px;
}

.texte-centre {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  display: inline-block;
  color: var(--dore-fonce);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.8rem;
  margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   3. MISE EN PAGE
   -------------------------------------------------------------------------- */
.conteneur {
  width: 100%;
  max-width: var(--largeur-max);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background-color: var(--gris-clair);
}

.section-entete {
  max-width: 700px;
  margin: 0 auto 48px;
  text-align: center;
}

/* --------------------------------------------------------------------------
   4. EN-TÊTE & NAVIGATION
   -------------------------------------------------------------------------- */
.entete {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--gris-bordure);
}

.entete .conteneur {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.entete-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.entete-logo img {
  height: 58px;
  width: auto;
}

.nav-principale {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-principale a {
  padding: 10px 16px;
  font-weight: 600;
  color: var(--texte-fonce);
  border-radius: var(--radius-sm);
  transition: color var(--transition-rapide), background-color var(--transition-rapide);
}

.nav-principale a:hover,
.nav-principale a[aria-current="page"] {
  color: var(--bleu-institutionnel);
  background-color: var(--gris-clair);
}

.entete-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bouton-menu-mobile {
  display: none;
  background: none;
  border: 2px solid var(--gris-bordure);
  border-radius: var(--radius-sm);
  width: 46px;
  height: 46px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.bouton-menu-mobile span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--bleu-marine);
  transition: transform var(--transition-rapide), opacity var(--transition-rapide);
}

.bouton-menu-mobile[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.bouton-menu-mobile[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.bouton-menu-mobile[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   5. BOUTONS & LIENS
   -------------------------------------------------------------------------- */
.bouton {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition: transform var(--transition-rapide), box-shadow var(--transition-rapide), background-color var(--transition-rapide), color var(--transition-rapide);
  white-space: nowrap;
}

.bouton:hover {
  transform: translateY(-2px);
}

.bouton-primaire {
  background-color: var(--bleu-marine);
  color: var(--blanc);
}

.bouton-primaire:hover {
  background-color: var(--bleu-institutionnel);
  box-shadow: var(--ombre-moyenne);
}

.bouton-dore {
  background-color: var(--dore);
  color: var(--bleu-marine);
}

.bouton-dore:hover {
  background-color: var(--dore-fonce);
  box-shadow: var(--ombre-moyenne);
}

.bouton-contour {
  background-color: transparent;
  color: var(--bleu-marine);
  border-color: var(--bleu-marine);
}

.bouton-contour:hover {
  background-color: var(--bleu-marine);
  color: var(--blanc);
}

.bouton-contour-clair {
  background-color: transparent;
  color: var(--blanc);
  border-color: rgba(255,255,255,0.6);
}

.bouton-contour-clair:hover {
  background-color: var(--blanc);
  color: var(--bleu-marine);
}

.bouton-large {
  width: 100%;
}

.groupe-boutons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.lien-souligne {
  color: var(--bleu-institutionnel);
  font-weight: 700;
  border-bottom: 2px solid var(--dore);
  padding-bottom: 2px;
}

/* --------------------------------------------------------------------------
   6. SECTIONS COMMUNES — HÉROS
   -------------------------------------------------------------------------- */
.heros {
  padding: 168px 0 96px;
  background:
    radial-gradient(circle at 85% 20%, rgba(213, 167, 43, 0.10), transparent 45%),
    linear-gradient(180deg, #F8FAFD 0%, var(--blanc) 100%);
}

.heros-grille {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
}

.heros h1 {
  margin-bottom: 22px;
}

.heros-texte {
  font-size: 1.15rem;
}

.heros-atouts {
  display: grid;
  gap: 14px;
  margin-top: 36px;
}

.heros-atout {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-weight: 600;
  color: var(--texte-fonce);
}

.heros-atout .icone {
  flex-shrink: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: rgba(16, 76, 158, 0.10);
  color: var(--bleu-institutionnel);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.heros-visuel {
  background: linear-gradient(160deg, var(--bleu-marine), var(--bleu-institutionnel));
  border-radius: var(--radius-lg);
  padding: 46px;
  color: var(--blanc);
  box-shadow: var(--ombre-moyenne);
  position: relative;
  overflow: hidden;
}

.heros-visuel::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px solid rgba(213, 167, 43, 0.35);
}

.heros-visuel h2 {
  color: var(--blanc);
  font-size: 1.4rem;
}

.heros-visuel p {
  color: rgba(255,255,255,0.85);
}

.heros-visuel .slogan-secondaire {
  display: inline-block;
  margin-top: 18px;
  font-style: italic;
  color: var(--dore);
  font-weight: 700;
  border-top: 1px solid rgba(255,255,255,0.25);
  padding-top: 18px;
}

/* Bandeau de sous-page (pages internes) */
.bandeau {
  padding: 156px 0 64px;
  background: linear-gradient(180deg, #F8FAFD 0%, var(--blanc) 100%);
  text-align: center;
}

.bandeau .eyebrow {
  display: block;
}

.bandeau h1 {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.bandeau .texte-intro {
  margin-left: auto;
  margin-right: auto;
}

.fil-ariane {
  font-size: 0.85rem;
  color: var(--texte-gris);
  margin-bottom: 20px;
}

.fil-ariane a {
  color: var(--bleu-institutionnel);
  font-weight: 600;
}

.fil-ariane span[aria-hidden="true"] {
  margin: 0 6px;
}

/* --------------------------------------------------------------------------
   7. CARTES
   -------------------------------------------------------------------------- */
.grille-cartes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grille-cartes--2 {
  grid-template-columns: repeat(2, 1fr);
}

.carte {
  background-color: var(--blanc);
  border: 1px solid var(--gris-bordure);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: transform var(--transition-normale), box-shadow var(--transition-normale), border-color var(--transition-normale);
}

.carte:hover {
  transform: translateY(-6px);
  box-shadow: var(--ombre-moyenne);
  border-color: transparent;
}

.carte .icone {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: rgba(213, 167, 43, 0.14);
  color: var(--dore-fonce);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}

.carte h3 {
  margin-bottom: 10px;
}

.carte p {
  margin-bottom: 0;
}

.carte-numero {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--dore);
  margin-bottom: 10px;
  display: block;
}

/* Étapes (parcours conducteur) */
.etapes {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  counter-reset: etape;
}

.etape {
  background-color: var(--blanc);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: left;
  border: 1px solid var(--gris-bordure);
  position: relative;
}

.etape::before {
  counter-increment: etape;
  content: counter(etape);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background-color: var(--bleu-marine);
  color: var(--blanc);
  font-weight: 800;
  margin-bottom: 14px;
}

.etape h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.etape p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* Bloc engagements */
.grille-engagements {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.engagement {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 22px;
  background-color: var(--blanc);
  border-radius: var(--radius-md);
  border: 1px solid var(--gris-bordure);
}

.engagement .icone {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(7, 54, 111, 0.08);
  color: var(--bleu-marine);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}

.engagement h3 {
  font-size: 1.02rem;
  margin-bottom: 4px;
}

.engagement p {
  font-size: 0.92rem;
  margin-bottom: 0;
}

/* Bloc double (conducteurs / entreprises) */
.bloc-double {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.bloc-double .panneau {
  padding: 44px;
  border-radius: var(--radius-lg);
  height: 100%;
}

.panneau-marine {
  background: linear-gradient(160deg, var(--bleu-marine), var(--bleu-institutionnel));
  color: var(--blanc);
}

.panneau-marine h2,
.panneau-marine h3 {
  color: var(--blanc);
}

.panneau-marine p {
  color: rgba(255,255,255,0.85);
}

.panneau-clair {
  background-color: var(--blanc);
  border: 1px solid var(--gris-bordure);
}

/* --------------------------------------------------------------------------
   8. FORMULAIRES
   -------------------------------------------------------------------------- */
.bloc-formulaire {
  background-color: var(--blanc);
  border: 1px solid var(--gris-bordure);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--ombre-legere);
}

.grille-champs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.champ {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 22px;
}

.champ-pleine-largeur {
  grid-column: 1 / -1;
}

.champ label {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--texte-fonce);
}

.champ .indication {
  font-size: 0.8rem;
  color: var(--texte-gris);
  font-weight: 400;
}

.champ input[type="text"],
.champ input[type="email"],
.champ input[type="tel"],
.champ input[type="date"],
.champ input[type="number"],
.champ input[type="file"],
.champ select,
.champ textarea {
  border: 1.5px solid var(--gris-bordure);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-size: 0.98rem;
  font-family: inherit;
  color: var(--texte-fonce);
  background-color: var(--blanc);
  transition: border-color var(--transition-rapide), box-shadow var(--transition-rapide);
  width: 100%;
}

.champ input:hover,
.champ select:hover,
.champ textarea:hover {
  border-color: var(--bleu-institutionnel);
}

.champ input:focus,
.champ select:focus,
.champ textarea:focus {
  outline: none;
  border-color: var(--bleu-institutionnel);
  box-shadow: 0 0 0 4px rgba(16, 76, 158, 0.12);
}

.champ textarea {
  resize: vertical;
  min-height: 130px;
}

.champ-obligatoire::after {
  content: " *";
  color: var(--dore-fonce);
}

fieldset.champ {
  border: 1.5px solid var(--gris-bordure);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
}

fieldset.champ legend {
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0 8px;
}

.options-ligne {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.options-ligne label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--texte-fonce);
}

.champ-case {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
}

.champ-case input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--bleu-marine);
}

.champ-case label {
  font-weight: 500;
  font-size: 0.92rem;
  color: var(--texte-gris);
}

/* Champ anti-spam invisible (piège à robots) */
.champ-piege {
  position: absolute !important;
  left: -9999px !important;
  top: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.formulaire-note {
  font-size: 0.82rem;
  color: var(--texte-gris);
  margin-top: 10px;
}

.message-etat {
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-weight: 600;
  display: none;
}

.message-etat.succes {
  display: block;
  background-color: rgba(46, 139, 87, 0.12);
  color: #1E6B41;
  border: 1px solid rgba(46, 139, 87, 0.3);
}

.message-etat.erreur {
  display: block;
  background-color: rgba(200, 60, 60, 0.1);
  color: #A32626;
  border: 1px solid rgba(200, 60, 60, 0.3);
}

.champ.champ-invalide input,
.champ.champ-invalide select,
.champ.champ-invalide textarea {
  border-color: #C83C3C;
}

.champ-erreur-texte {
  color: #A32626;
  font-size: 0.82rem;
  font-weight: 600;
  display: none;
}

.champ.champ-invalide .champ-erreur-texte {
  display: block;
}

/* --------------------------------------------------------------------------
   9. PIED DE PAGE
   -------------------------------------------------------------------------- */
.pied {
  background-color: var(--bleu-marine);
  color: rgba(255,255,255,0.85);
  padding-top: 72px;
}

.pied-grille {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}

.pied-marque {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 16px;
}

.pied-marque img {
  height: 52px;
  width: auto;
  background-color: var(--blanc);
  border-radius: 10px;
  padding: 6px;
}

.pied-marque-nom {
  font-weight: 800;
  color: var(--blanc);
  font-size: 1.02rem;
  line-height: 1.4;
}

.pied p {
  color: rgba(255,255,255,0.72);
  font-size: 0.92rem;
}

.pied h4 {
  color: var(--blanc);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 18px;
}

.pied ul li {
  margin-bottom: 12px;
}

.pied a {
  color: rgba(255,255,255,0.78);
  font-size: 0.92rem;
  transition: color var(--transition-rapide);
}

.pied a:hover {
  color: var(--dore);
}

.pied-bas {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.6);
}

/* --------------------------------------------------------------------------
   10. COMPOSANTS DIVERS
   -------------------------------------------------------------------------- */
.encadre-avertissement {
  background-color: #FFF8E8;
  border: 1.5px solid rgba(213, 167, 43, 0.5);
  border-left: 5px solid var(--dore);
  border-radius: var(--radius-sm);
  padding: 24px 28px;
  margin: 32px 0 40px;
}

.encadre-avertissement strong {
  color: var(--bleu-marine);
}

.encadre-avertissement p {
  margin-bottom: 0;
  color: var(--texte-fonce);
}

.encadre-info {
  background-color: var(--gris-clair);
  border-left: 5px solid var(--bleu-institutionnel);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  margin: 24px 0;
}

.encadre-info p {
  margin-bottom: 0;
}

.a-completer {
  background-color: #FDEEEE;
  color: #A32626;
  padding: 2px 10px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.85em;
  white-space: nowrap;
}

.bloc-contact-rapide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.coordonnees-liste li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 18px;
  font-weight: 600;
  color: var(--texte-fonce);
}

.coordonnees-liste .icone {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(7, 54, 111, 0.08);
  color: var(--bleu-marine);
  display: flex;
  align-items: center;
  justify-content: center;
}

.carte-plan {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--gris-bordure);
  box-shadow: var(--ombre-legere);
}

.carte-plan iframe {
  width: 100%;
  height: 340px;
  border: 0;
  display: block;
}

.bouton-haut {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--bleu-marine);
  color: var(--blanc);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-rapide), transform var(--transition-rapide), background-color var(--transition-rapide);
  z-index: 900;
  box-shadow: var(--ombre-moyenne);
}

.bouton-haut.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.bouton-haut:hover {
  background-color: var(--bleu-institutionnel);
}

.tableau-simple {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.tableau-simple th,
.tableau-simple td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--gris-bordure);
  font-size: 0.95rem;
}

.tableau-simple th {
  background-color: var(--gris-clair);
  color: var(--bleu-marine);
  font-weight: 700;
}

.bloc-texte-legal h2 {
  margin-top: 44px;
}

.bloc-texte-legal h2:first-child {
  margin-top: 0;
}

.bloc-texte-legal ul {
  list-style: disc;
  padding-left: 22px;
  margin-bottom: 16px;
}

.bloc-texte-legal li {
  color: var(--texte-gris);
  margin-bottom: 8px;
}

/* Page 404 */
.page-404 {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 160px 24px 80px;
}

.page-404 .code-erreur {
  font-size: 6rem;
  font-weight: 800;
  color: var(--dore);
  line-height: 1;
  margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   11. ANIMATIONS & ACCESSIBILITÉ
   -------------------------------------------------------------------------- */
.animer {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.animer.visible {
  opacity: 1;
  transform: translateY(0);
}

.animer-delai-1 { transition-delay: 0.08s; }
.animer-delai-2 { transition-delay: 0.16s; }
.animer-delai-3 { transition-delay: 0.24s; }
.animer-delai-4 { transition-delay: 0.32s; }
.animer-delai-5 { transition-delay: 0.4s; }
.animer-delai-6 { transition-delay: 0.48s; }

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

  * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .animer {
    opacity: 1;
    transform: none;
  }
}

.masque-visuellement {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   12. RESPONSIVE
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .heros-grille {
    grid-template-columns: 1fr;
  }

  .heros-visuel {
    order: -1;
  }

  .grille-cartes {
    grid-template-columns: repeat(2, 1fr);
  }

  .etapes {
    grid-template-columns: repeat(3, 1fr);
  }

  .grille-engagements {
    grid-template-columns: repeat(2, 1fr);
  }

  .pied-grille {
    grid-template-columns: 1fr 1fr;
  }

  .bloc-double {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .nav-principale {
    position: fixed;
    top: 84px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--blanc);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform var(--transition-normale);
    overflow-y: auto;
  }

  .nav-principale.ouvert {
    transform: translateX(0);
  }

  .nav-principale a {
    padding: 16px;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--gris-bordure);
    border-radius: 0;
  }

  .nav-principale .nav-cta {
    margin-top: 16px;
  }

  .bouton-menu-mobile {
    display: flex;
  }

  .entete-actions .bouton-primaire.desktop-seul {
    display: none;
  }

  .bloc-contact-rapide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .section {
    padding: 64px 0;
  }

  .heros {
    padding: 140px 0 64px;
  }

  .bandeau {
    padding: 132px 0 48px;
  }

  .grille-cartes,
  .grille-cartes--2 {
    grid-template-columns: 1fr;
  }

  .etapes {
    grid-template-columns: 1fr 1fr;
  }

  .grille-engagements {
    grid-template-columns: 1fr;
  }

  .grille-champs {
    grid-template-columns: 1fr;
  }

  .pied-grille {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .pied-bas {
    flex-direction: column;
    align-items: flex-start;
  }

  .bloc-formulaire {
    padding: 28px 22px;
  }

  .groupe-boutons {
    flex-direction: column;
  }

  .groupe-boutons .bouton {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .etapes {
    grid-template-columns: 1fr;
  }

  .entete-logo img {
    height: 46px;
  }

  .page-404 .code-erreur {
    font-size: 4rem;
  }
}