/* En-tete */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  padding-block: var(--sp-4);
  background: transparent;
  transition: transform 250ms var(--ease-signature), background-color var(--transition);
}
.site-header.is-scrolled {
  background: rgba(17, 17, 17, .92);
  backdrop-filter: blur(8px);
  color: var(--gs-white);
}
.site-header.is-hidden {
  transform: translateY(-100%);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}
.site-header__logo img {
  height: clamp(36px, 4vw, 48px);
  min-height: 32px;
  width: auto;
}
.site-header__brand-name {
  font-family: var(--font-display);
  font-size: clamp(15px, 3vw, 20px);
  font-weight: 700;
  color: inherit;
  white-space: nowrap;
}
.site-header__brand-g {
  color: var(--gs-red);
}
.site-footer__brand-mark {
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  font-size: 1.25rem;
  cursor: pointer;
  color: inherit;
}
.site-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  row-gap: var(--sp-2);
  gap: var(--sp-6);
  flex: 1;
}
.site-header__menu {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--fs-sm);
}
.site-header__menu a {
  text-decoration: none;
}
.site-header__menu a[aria-current="page"] {
  font-weight: 700;
}
.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}
.lang-switch {
  display: flex;
  gap: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
}
.lang-switch a {
  text-decoration: none;
  padding: var(--sp-1) var(--sp-2);
  opacity: .6;
}
.lang-switch a[aria-current="true"] {
  opacity: 1;
  font-weight: 700;
}
.site-header__shop {
  font-size: var(--fs-sm);
  text-decoration: none;
  white-space: nowrap;
}

@media (max-width: 1023px) {
  .site-header__toggle {
    display: inline-flex;
  }
  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-6);
    padding: var(--sp-4) var(--gutter) var(--sp-6);
    background: var(--gs-ink);
    color: var(--gs-white);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .site-header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-header__menu,
  .site-header__actions {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-4);
    width: 100%;
  }
  .site-header__actions .btn {
    width: 100%;
  }
}
@media (min-width: 1024px) {
  .site-header__toggle {
    display: none;
  }
}

#main-content {
  padding-top: calc(48px + var(--sp-16));
}
.page-has-hero #main-content {
  padding-top: 0;
}
/* Le logo garde toujours son rouge de marque - seul le texte de nav
   (menu, liens) s'inverse en blanc au-dessus d'un hero sombre pour rester
   lisible. Le monogramme (image) n'herite pas de cette couleur de texte. */
.page-has-hero .site-header:not(.is-scrolled) {
  color: var(--gs-white);
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: 56vh;
  padding-block: calc(48px + var(--sp-16)) var(--sp-16);
  color: var(--gs-white);
  background: var(--gs-ink) url('/assets/images/patterns/corridor-hero.svg') center/cover no-repeat;
}
.hero--full {
  min-height: 88vh;
}

/* Diaporama du hero (accueil) */
.hero--slideshow {
  background: var(--gs-ink);
}
.hero__slides {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1800ms ease;
}
.hero__slide.is-active {
  opacity: 1;
}
.hero--slideshow::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(rgba(17, 17, 17, .5), rgba(17, 17, 17, .8));
}
.hero__content {
  position: relative;
  z-index: 1;
}
.hero__content > * {
  animation: hero-reveal 800ms var(--ease-signature) both;
}
.hero__content > *:nth-child(2) { animation-delay: 80ms; }
.hero__content > *:nth-child(3) { animation-delay: 160ms; }
.hero__content > *:nth-child(4) { animation-delay: 240ms; }
.hero__content > *:nth-child(5) { animation-delay: 320ms; }
@keyframes hero-reveal {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Bandeau promo defilant */
.promo-ticker {
  background: var(--gs-red);
  color: var(--gs-white);
  overflow: hidden;
  padding-block: var(--sp-2);
}
.promo-ticker__track {
  display: flex;
  width: max-content;
  gap: var(--sp-12);
  animation: promo-scroll 28s linear infinite;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .04em;
  white-space: nowrap;
}
.promo-ticker__track span {
  padding-inline: var(--sp-4);
}
@keyframes promo-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Selecteur de besoin (CTA final accueil) */
.need-picker {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-4);
  margin-block: var(--sp-8);
  max-width: 640px;
}
@media (min-width: 768px) {
  .need-picker {
    grid-template-columns: repeat(4, 1fr);
  }
}
.need-picker__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  padding: var(--sp-4);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .06);
  color: var(--gs-white);
  text-decoration: none;
  text-align: center;
  font-size: var(--fs-sm);
  transition: var(--transition);
}
.need-picker__item:hover {
  background: rgba(255, 255, 255, .14);
  transform: translateY(-2px);
}
.need-picker__item .card-icon {
  margin-bottom: 0;
}

/* Carrousel de cartes actualites - defilement natif, glissable */
.news-carousel {
  display: flex;
  gap: var(--sp-6);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-block: var(--sp-2) var(--sp-4);
  margin-top: var(--sp-6);
}
.news-carousel__item {
  flex: 0 0 300px;
  scroll-snap-align: start;
}
@media (min-width: 768px) {
  .news-carousel__item {
    flex-basis: 340px;
  }
}

/* Carrousel universites - defilement continu, pause au survol */
.uni-carousel {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}
.uni-carousel__track {
  display: flex;
  align-items: center;
  gap: var(--sp-16);
  width: max-content;
  animation: uni-scroll 24s linear infinite;
}
.uni-carousel:hover .uni-carousel__track {
  animation-play-state: paused;
}
.uni-carousel__track img {
  height: 64px;
  width: auto;
  filter: grayscale(1);
  opacity: .75;
  transition: var(--transition);
}
.uni-carousel__track img:hover {
  filter: grayscale(0);
  opacity: 1;
}
@keyframes uni-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.hero--trade {
  background: linear-gradient(rgba(17, 17, 17, .6), rgba(17, 17, 17, .82)), url('/assets/images/photos/trade-hero.webp') center/cover no-repeat;
}
.hero--visa {
  background: linear-gradient(rgba(26, 26, 46, .65), rgba(26, 26, 46, .86)), url('/assets/images/photos/visa-hero.webp') center/cover no-repeat;
}
.hero--study {
  background: linear-gradient(rgba(17, 17, 17, .58), rgba(17, 17, 17, .8)), url('/assets/images/photos/study-hero.webp') center/cover no-repeat;
}
.hero--consulting {
  background: linear-gradient(rgba(26, 26, 46, .62), rgba(26, 26, 46, .84)), url('/assets/images/photos/consulting-hero.webp') center/cover no-repeat;
}
@media (max-width: 767px) {
  .hero {
    min-height: 66vh;
  }
  .hero--full {
    min-height: 82vh;
  }
}
.hero--navy {
  background-color: var(--gs-navy);
}
.hero .container {
  position: relative;
  z-index: 1;
}
.hero .eyebrow {
  color: #B9B9C4;
}
.hero h1 {
  color: var(--gs-white);
}
.hero p {
  color: #D8D8DC;
  max-width: 48ch;
}
.hero__actions {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-top: var(--sp-6);
}
.hero__corridor {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
  color: rgba(255, 255, 255, .7);
  margin-top: var(--sp-12);
}
.hero__corridor-line {
  flex: 1;
  max-width: 200px;
  height: 1px;
  background: rgba(255, 255, 255, .25);
  position: relative;
}
.hero__corridor-line::after {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 100%;
  background: var(--gs-red);
}
.hero__plane {
  position: absolute;
  top: 50%;
  left: 0;
  width: 16px;
  height: 16px;
  color: var(--gs-white);
  transform: translate(-50%, -50%);
  animation: fly-corridor 3.5s ease-in-out infinite;
}
@keyframes fly-corridor {
  0% { left: 0%; opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { left: 100%; opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .hero__plane {
    animation: none;
    left: 50%;
    opacity: 1;
  }
}

/* Grilles */
.grid {
  display: grid;
  gap: var(--sp-6);
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Formulaire */
.form-field {
  margin-bottom: var(--sp-4);
}
.form-field label {
  display: block;
  font-weight: 600;
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-2);
}
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: var(--sp-3);
  border: 1px solid var(--gs-line);
  border-radius: var(--radius-sm);
  font: inherit;
  background: var(--gs-white);
  color: var(--gs-ink);
}
.form-field textarea {
  min-height: 140px;
  resize: vertical;
}
.form-field--checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
}
.form-field--checkbox input {
  width: auto;
  margin-top: .3em;
}
.form-field--honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-alert {
  padding: var(--sp-4);
  border-radius: var(--radius-sm);
  margin-bottom: var(--sp-6);
}
.form-alert--error {
  background: #FDECEC;
  color: var(--gs-red-dp);
  border: 1px solid var(--gs-red);
}
.form-alert--success {
  background: #E9F7EF;
  color: #1E7B41;
  border: 1px solid #1E7B41;
}

/* Accordeon FAQ */
.accordion-item {
  border-bottom: 1px solid var(--gs-line);
}
.accordion-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) 0;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.accordion-item summary::-webkit-details-marker {
  display: none;
}
.accordion-item summary::after {
  content: "+";
  color: var(--gs-red);
  font-size: 1.25rem;
  flex-shrink: 0;
}
.accordion-item[open] summary::after {
  content: "\2212";
}
.accordion-item p {
  padding-bottom: var(--sp-4);
  color: var(--gs-grey-tx);
}

/* Etapes de procedure (le corridor, verticale mobile / horizontale desktop) */
.process-steps {
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 1024px) {
  .process-steps {
    grid-template-columns: repeat(3, 1fr);
  }
}
.process-step {
  position: relative;
  padding-inline-start: var(--sp-8);
}
.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  color: var(--gs-red);
  font-size: var(--fs-sm);
  position: absolute;
  left: 0;
  top: 0;
}

/* Pied de page */
.site-footer {
  background: var(--gs-ink);
  color: var(--gs-white);
  padding-block: var(--sp-16);
}
.site-footer__inner {
  display: grid;
  gap: var(--sp-8);
  grid-template-columns: 1fr;
}
.site-footer a {
  text-decoration: none;
  color: inherit;
}
.site-footer__social,
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  font-size: var(--fs-sm);
}
.site-footer__contact p {
  margin: 0 0 var(--sp-2);
}
.site-footer__brand img {
  margin-bottom: var(--sp-3);
}
.site-footer__social {
  display: flex;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}
.social-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: transform .2s ease, opacity .2s ease;
}
.social-icon svg {
  width: 18px;
  height: 18px;
}
.social-icon:hover {
  transform: translateY(-3px);
  opacity: .9;
}
.social-facebook { background: #1877F2; }
.social-tiktok   { background: #000; }
.social-linkedin { background: #0A66C2; }
.site-footer__copyright {
  font-size: var(--fs-xs);
  color: var(--gs-grey-tx);
  margin: 0;
}

@media (min-width: 1024px) {
  .site-footer__inner {
    grid-template-columns: repeat(4, 1fr);
    align-items: start;
  }
}

/* Widget WhatsApp flottant : bouton deplacable + mini panneau de chat */
.wa-widget {
  position: fixed;
  inset-block-end: var(--sp-6);
  inset-inline-end: var(--sp-6);
  z-index: 95;
}
.wa-widget.is-dragging {
  transition: none;
}
.whatsapp-float {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  min-width: 56px;
  min-height: 56px;
  max-width: 56px;
  max-height: 56px;
  border: 0;
  border-radius: 50%;
  background: #25D366;
  color: var(--gs-white);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .25);
  cursor: grab;
  touch-action: none;
  transition: var(--transition);
}
.whatsapp-float:active {
  cursor: grabbing;
}
.whatsapp-float svg {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  pointer-events: none;
}
.whatsapp-float:hover {
  transform: scale(1.06);
}

.wa-panel {
  position: absolute;
  inset-block-end: calc(56px + var(--sp-3));
  inset-inline-end: 0;
  width: min(320px, 80vw);
  background: var(--gs-white);
  color: var(--gs-ink);
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 32px rgba(0, 0, 0, .22);
  overflow: hidden;
}
.wa-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-4);
  background: #075E54;
  color: var(--gs-white);
  font-weight: 600;
}
.wa-panel__close {
  border: 0;
  background: transparent;
  color: inherit;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 var(--sp-1);
}
.wa-panel__body {
  padding: var(--sp-4);
}
.wa-panel__body p {
  font-size: var(--fs-sm);
  color: var(--gs-grey-tx);
  margin-bottom: var(--sp-3);
}
.wa-panel__textarea {
  width: 100%;
  min-height: 90px;
  padding: var(--sp-3);
  border: 1px solid var(--gs-line);
  border-radius: var(--radius-sm);
  font: inherit;
  resize: vertical;
}
.wa-panel__send {
  width: calc(100% - 2 * var(--sp-4));
  margin: 0 var(--sp-4) var(--sp-4);
}

/* Bouton retour en haut */
.back-to-top {
  position: fixed;
  inset-block-end: var(--sp-6);
  inset-inline-end: var(--sp-6);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 0;
  background: var(--gs-ink);
  color: var(--gs-white);
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: var(--transition);
  z-index: 90;
}
.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

/* Preloader - element signature "le corridor" (docs/02-design-system.md #6) */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-6);
  background: var(--gs-ink);
  color: var(--gs-white);
  transition: transform 500ms var(--ease-signature);
}
.preloader.is-done {
  transform: translateY(-100%);
  pointer-events: none;
}
.preloader__mark {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--gs-red);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: var(--fs-h3);
  font-weight: 700;
}
.preloader__corridor {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: .12em;
}
.preloader__line {
  position: relative;
  width: 120px;
  height: 1px;
  background: rgba(255, 255, 255, .25);
  overflow: hidden;
}
.preloader__line::after {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  width: 0;
  background: var(--gs-white);
  transition: width 900ms var(--ease-signature);
}
.preloader.is-tracing .preloader__line::after {
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .preloader {
    transition: opacity 200ms ease;
  }
  .preloader.is-done {
    transform: none;
    opacity: 0;
  }
}