/* ============================================================
   IMASCIENCE — Sections de la home (maquette Framer Cléa)
   ============================================================ */

.section { padding-block: clamp(var(--space-12), 6vw, var(--space-16)); }
.section__head {
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}
.section__head--left {
  margin-inline: 0;
  text-align: left;
  max-width: 640px;
}
.section__head p { margin-top: var(--space-4); color: var(--color-ink-soft); }
.section__foot {
  display: flex;
  flex-wrap: wrap; /* plusieurs boutons (expertise multi-galeries) */
  gap: var(--space-4);
  justify-content: center;
  margin-top: clamp(var(--space-8), 5vw, var(--space-12));
}

/* ---------- Hero plein écran ---------- */
.hero {
  position: relative;
  /* la vidéo file sous le header translucide : plein écran moins rien */
  min-height: 100svh;
  margin-top: -74px;
  padding-top: 74px;
  display: flex;
  flex-direction: column;
  background: var(--color-dark);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}
/* assombrissement dégradé sur la vidéo : léger en haut, très sombre en bas */
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom,
      rgb(23 11 29 / 0.35),
      rgb(23 11 29 / 0.5) 40%,
      rgb(23 11 29 / 0.78) 70%,
      rgb(23 11 29 / 0.98) 100%);
}
.hero__content {
  position: relative;
  text-align: center;
  color: var(--color-white);
  padding-block: var(--space-8);
  max-width: 980px;
  /* centré verticalement entre le header et le bandeau de logos */
  margin-block: auto;
}
.hero__badges {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-pill);
  background: rgb(255 255 255 / 0.1);
  backdrop-filter: blur(6px);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}
.hero__badges em {
  font-style: normal;
  color: var(--color-highlight);
  font-weight: var(--weight-semibold);
}
.badge__sep { opacity: 0.5; }
.hero h1 {
  color: var(--color-white);
  font-size: clamp(var(--text-4xl), 3.9vw, 3.5rem);
  font-weight: var(--weight-semibold);
}
.hero__sub em { color: inherit; font-style: italic; }
.hero__sub {
  margin: var(--space-6) auto var(--space-8);
  max-width: 640px;
  color: color-mix(in srgb, var(--color-white) 88%, transparent);
  font-size: var(--text-lg);
  line-height: var(--leading-snug);
}
.hero .cta-note { color: color-mix(in srgb, var(--color-white) 75%, transparent); }

/* ---------- Marquee logos clients ---------- */
.trustbar {
  position: relative;
  padding-block: var(--space-8) var(--space-12);
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 12%, black 88%, transparent);
}
.trustbar__track {
  display: flex;
  align-items: center;
  gap: clamp(var(--space-16), 8vw, 9rem);
  width: max-content;
  animation: marquee 30s linear infinite;
}
.trustbar img {
  /* On borne chaque logo dans une boîte (hauteur ET largeur max) plutôt que
     de forcer une hauteur commune : les logos compacts (ex. Sanofi) peuvent
     ainsi occuper toute la hauteur au lieu de paraître minuscules. */
  height: auto;
  width: auto;
  max-height: 48px;
  max-width: 140px;
  object-fit: contain;
  opacity: 0.85;
  filter: grayscale(1) brightness(4);
}
@keyframes marquee {
  to { translate: -50% 0; }
}
@media (prefers-reduced-motion: reduce) {
  .trustbar__track { animation: none; }
}

/* ---------- Secteurs ---------- */
.sectors { position: relative; overflow: hidden; }
.sectors__deco {
  position: absolute;
  top: calc(-1 * var(--space-8));
  right: calc(-1 * var(--space-12));
  width: min(320px, 30vw);
  opacity: 0.18;
  pointer-events: none;
}
.sectors__grid {
  display: grid;
  gap: var(--space-12) var(--space-12);
}
@media (min-width: 810px) {
  .sectors__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1200px) {
  .sectors__grid { grid-template-columns: repeat(3, 1fr); }
}
.sector-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  background: transparent;
  text-decoration: none;
  color: inherit;
  transition: background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}
.sector-item:hover,
.sector-item:focus-visible {
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--color-bg) 70%, var(--color-white)),
    var(--color-white));
  border-color: color-mix(in srgb, var(--color-blue) 12%, transparent);
  box-shadow: 0 18px 40px -24px color-mix(in srgb, var(--color-blue) 55%, transparent);
  transform: translateY(-4px);
}
.sector-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}
.sector-item:hover .cta-tertiary,
.sector-item:focus-visible .cta-tertiary { color: var(--color-accent); }
.sector-item:hover .cta-tertiary .icon,
.sector-item:focus-visible .cta-tertiary .icon { transform: translateX(3px); }
.sector-item .cta-tertiary .icon {
  transition: transform var(--duration-fast) var(--ease-out);
}
.sector-item__head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.sector-item h3 { font-size: var(--text-xl); }
.sector-item p {
  color: var(--color-ink-soft);
  font-size: var(--text-base);
  flex: 1;
}
.sectors__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

/* ---------- Chiffres clés (bande violette) ---------- */
.stats {
  background: var(--color-purple);
  padding-block: clamp(var(--space-12), 6vw, var(--space-16));
}
.stats__grid {
  display: grid;
  gap: var(--space-8);
}
@media (min-width: 810px) {
  .stats__grid { grid-template-columns: repeat(4, 1fr); }
  .stat + .stat { border-left: 1px solid rgb(255 255 255 / 0.15); padding-left: var(--space-8); }
}
.stat { display: grid; gap: var(--space-2); align-content: start; }
.stat__value {
  font-size: clamp(var(--text-5xl), 3.5vw, var(--text-6xl));
  font-weight: var(--weight-bold);
  color: var(--color-highlight);
  line-height: 1;
}
.stat__label {
  color: color-mix(in srgb, var(--color-white) 88%, transparent);
  font-size: var(--text-base);
  line-height: var(--leading-snug);
}

/* ---------- Réalisations ---------- */
.projects { background: var(--color-section-alt); }
.projects__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}
.filter {
  padding: 0.5em 1.1em;
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in srgb, var(--color-ink) 18%, transparent);
  background: var(--color-white);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}
.filter:hover { border-color: var(--color-accent); color: var(--color-accent); }
.filter.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}
.projects__grid {
  display: grid;
  gap: var(--space-6);
}
@media (min-width: 810px) {
  .projects__grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1200px) {
  .projects__grid { grid-template-columns: repeat(3, 1fr); }
}
/* Carte = lien vers une galerie complète (vignette = dernier projet) */
.project-card,
.project-card:hover,
.project-card:focus-visible {
  text-decoration: none;
}
.project-card {
  display: block;
  color: inherit;
  background: var(--color-white);
  border: 1px solid color-mix(in srgb, var(--color-ink) 8%, transparent);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}
.project-card:hover,
.project-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -24px rgb(0 0 0 / 0.25);
}
.project-card:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.project-card__media {
  position: relative;
  margin: var(--space-3);
  border-radius: var(--radius-md);
  overflow: hidden;
  /* dégradé de repli quand la galerie n'a pas encore de vignette */
  background: linear-gradient(150deg, var(--color-purple) 10%, var(--color-dark) 85%);
  aspect-ratio: 16 / 9;
}
.project-card__media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--duration-base) var(--ease-out);
}
.project-card:hover .project-card__media img,
.project-card:focus-visible .project-card__media img { transform: scale(1.04); }
.project-card__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    color-mix(in srgb, var(--color-dark) 6%, transparent),
    color-mix(in srgb, var(--color-dark) 42%, transparent) 88%);
}
.project-card__play {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--color-white);
}
.project-card__play .icon {
  width: 64px;
  height: 64px;
  padding: 20px;
  border-radius: 50%;
  background: rgb(0 0 0 / 0.65);
  transition: transform var(--duration-fast) var(--ease-out);
}
.project-card:hover .project-card__play .icon { transform: scale(1.08); }
.project-card__body {
  display: grid;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-6) var(--space-6);
}
.project-card__client {
  color: var(--color-ink);
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
}
.project-card__title {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

/* ---------- Expertises ---------- */
.expertises__grid {
  display: grid;
  gap: var(--space-12) var(--space-16);
}
@media (min-width: 810px) {
  .expertises__grid { grid-template-columns: repeat(2, 1fr); }
}
/* Carte d'expertise entièrement cliquable (lien-carte) */
.expertise-item {
  display: grid;
  gap: var(--space-6);
  align-items: start;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin: calc(var(--space-4) * -1);
  transition: background var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out);
}
@media (min-width: 810px) {
  .expertise-item { grid-template-columns: 210px 1fr; }
}
.expertise-item:hover,
.expertise-item:focus-visible {
  text-decoration: none;
  background: var(--color-section-alt);
  box-shadow: 0 20px 44px -28px color-mix(in srgb, var(--color-dark) 45%, transparent);
}
.expertise-item:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.expertise-item__img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-md);
  transition: transform var(--duration-base) var(--ease-out);
}
.expertise-item:hover .expertise-item__img,
.expertise-item:focus-visible .expertise-item__img { transform: scale(1.03); }
.expertise-item__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
/* La flèche du libellé « Découvrir ce service » avance au survol de la carte */
.expertise-item .cta-tertiary .icon { transition: transform var(--duration-base) var(--ease-out); }
.expertise-item:hover .cta-tertiary .icon,
.expertise-item:focus-visible .cta-tertiary .icon { transform: translateX(4px); }
.expertise-item__head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.expertise-item h3 { font-size: var(--text-xl); }
.expertise-item p { color: var(--color-ink-soft); flex: 1; }

/* ---------- CTA finale (encart violet arrondi) ---------- */
.cta-final { padding-block: 0; }
.cta-final__box {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-purple-soft), var(--color-purple) 60%);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-12), 7vw, var(--space-24)) var(--space-8);
  text-align: center;
  color: var(--color-white);
}
.cta-final__box h2 { color: var(--color-white); }
.cta-final__box > p {
  max-width: 820px;
  margin: var(--space-6) auto var(--space-8);
  color: color-mix(in srgb, var(--color-white) 90%, transparent);
}
.cta-final__box .cta-note { color: color-mix(in srgb, var(--color-white) 75%, transparent); }
.cta-final__deco {
  position: absolute;
  width: 340px;
  opacity: 0.06;
  pointer-events: none;
}
.cta-final__deco--left { left: -80px; bottom: -80px; }
.cta-final__deco--right { right: -80px; top: -80px; }

/* ---------- FAQ ---------- */
.faq__inner { max-width: 900px; }
.faq h2 { text-align: center; margin-bottom: var(--space-12); }
.faq__list { display: grid; gap: var(--space-4); }
.faq__item {
  background: var(--color-faq-bg);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
}
.faq__item summary {
  cursor: pointer;
  font-weight: var(--weight-semibold);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: rotate(45deg);
  transition: transform var(--duration-fast) var(--ease-out);
  flex: none;
}
.faq__item[open] summary::after { transform: rotate(-135deg); }
.faq__item p {
  margin-top: var(--space-3);
  color: var(--color-ink-soft);
}

/* ---------- Témoignages (carrousel séquencé) ---------- */
.eyebrow {
  display: block;
  color: var(--color-highlight);
  font-size: var(--text-sm);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.testimonials__carousel { position: relative; }
.testimonials__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 85%;
  gap: var(--space-6);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  /* Pas de scroll-behavior: smooth ici : il rendrait animés les scrollTo
     « instantanés » du JS (téléportation clone → original de la boucle
     infinie), ce qui rembobinerait visiblement le carrousel. Les
     transitions animées sont demandées explicitement par le JS. */
  padding: var(--space-2) var(--space-1) var(--space-6);
  margin-inline: calc(-1 * var(--space-1));
  scrollbar-width: none;
}
.testimonials__track::-webkit-scrollbar { display: none; }
@media (min-width: 640px) {
  /* ~2,3 cartes visibles : la suivante est amorcée à droite → le carrousel déborde et défile */
  .testimonials__track { grid-auto-columns: calc((100% - 2 * var(--space-6)) / 2.3); }
}
@media (min-width: 1024px) {
  /* ~3,2 cartes visibles (comme la maquette : la 4e est coupée) */
  .testimonials__track { grid-auto-columns: calc((100% - 3 * var(--space-6)) / 3.2); }
}
.testimonial-card {
  scroll-snap-align: start;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.testimonial-card__stars {
  display: flex;
  gap: 2px;
  color: var(--color-accent);
}
.testimonial-card__title {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--color-ink);
}
.testimonial-card__quote {
  color: var(--color-ink-soft);
  line-height: var(--leading-body);
  flex: 1;
}
.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-2);
}
.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  object-fit: cover;
  flex: none;
}
.testimonial-card__meta { display: grid; }
.testimonial-card__name {
  font-weight: var(--weight-bold);
  font-style: italic;
  color: var(--color-ink);
}
.testimonial-card__role {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

/* Flèches de navigation */
.testimonials__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border: none;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-ink) 8%, transparent);
  color: var(--color-ink);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
  z-index: 2;
}
.testimonials__nav:hover { background: color-mix(in srgb, var(--color-ink) 16%, transparent); }
.testimonials__nav:disabled { opacity: 0.35; cursor: default; }
.testimonials__nav--prev { left: calc(-1 * var(--space-2)); }
.testimonials__nav--next { right: calc(-1 * var(--space-2)); }
@media (min-width: 1280px) {
  .testimonials__nav--prev { left: calc(-1 * var(--space-16)); }
  .testimonials__nav--next { right: calc(-1 * var(--space-16)); }
}

/* Pagination à points */
.testimonials__dots {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-top: var(--space-6);
}
.testimonials__dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: none;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-highlight) 30%, transparent);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}
.testimonials__dot.is-active { background: var(--color-highlight); }