/**
 * expertises-cinema.css
 * Mise en scène 50/50 propre à expertises.html : le panneau de lecture et
 * le flou restent strictement sur la moitié gauche, la scène Three.js reste
 * nette et entièrement visible sur la moitié droite.
 */
body.page-expertises-cinema {
  background: var(--c-noir-doux);
  color: var(--couleur-texte-inverse);
}

.page-expertises-cinema main,
.page-expertises-cinema .pied-page {
  position: relative;
  z-index: 1;
}

.expertises-3d {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 76% 40%, rgba(54, 91, 109, 0.22), transparent 42%),
    var(--c-noir-doux);
}
.expertises-3d canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.expertises-3d.scene-secours {
  background:
    radial-gradient(circle at 77% 44%, rgba(222, 114, 47, 0.18), transparent 35%),
    repeating-linear-gradient(135deg, rgba(246,244,240,0.04) 0 1px, transparent 1px 54px),
    var(--c-noir-doux);
}

.expertises-intro,
.expertise-cinema,
.expertises-fin {
  position: relative;
  isolation: isolate;
}

.expertises-intro {
  min-height: 115svh;
}
.expertise-cinema {
  min-height: 190svh;
}
.expertises-fin {
  min-height: 100svh;
}

.expertises-intro::before,
.expertise-cinema::before,
.expertises-fin::before {
  content: "";
  position: absolute;
  inset-block: 0;
  left: 0;
  width: 50vw;
  z-index: -1;
  background:
    linear-gradient(135deg, rgba(28, 30, 31, 0.93), rgba(24, 25, 26, 0.72)),
    rgba(27, 28, 29, 0.72);
  border-right: 1px solid rgba(246, 244, 240, 0.09);
  backdrop-filter: blur(18px) saturate(125%);
  -webkit-backdrop-filter: blur(18px) saturate(125%);
}

.expertises-intro__sticky,
.expertise-cinema__sticky {
  position: sticky;
  top: 0;
  min-height: 100svh;
  display: flex;
  align-items: center;
}

.expertises-intro__contenu,
.expertise-cinema__panneau,
.expertises-fin__contenu {
  width: 50%;
  padding-inline: max(var(--marge-page), calc((100vw - var(--largeur-max)) / 2 + var(--marge-page)));
}

.expertises-intro__contenu {
  padding-top: calc(var(--hauteur-header) + var(--espace-xl));
  padding-bottom: var(--espace-xl);
}
.expertises-intro h1 {
  font-size: clamp(3rem, 5.4vw, 6.3rem);
  line-height: 0.96;
  max-width: 11ch;
  margin-block: var(--espace-sm) var(--espace-md);
}
.expertises-intro__contenu > p:not(.entete-section__eyebrow) {
  max-width: 46ch;
  color: rgba(246, 244, 240, 0.78);
  font-size: clamp(1rem, 1.25vw, 1.22rem);
}
.expertises-intro__navigation {
  display: grid;
  margin-top: var(--espace-lg);
  border-top: 1px solid rgba(246, 244, 240, 0.14);
}
.expertises-intro__navigation a {
  display: flex;
  align-items: center;
  gap: var(--espace-sm);
  padding-block: 0.85rem;
  border-bottom: 1px solid rgba(246, 244, 240, 0.14);
  font-weight: 700;
  transition: color var(--vitesse-rapide), padding-left var(--vitesse-rapide);
}
.expertises-intro__navigation a:hover {
  color: var(--c-orange-clair);
  padding-left: 0.45rem;
}
.expertises-intro__navigation span {
  color: var(--c-orange);
  font-family: var(--police-technique);
  font-size: var(--echelle-xs);
}
.expertises-intro__scroll {
  display: flex;
  align-items: center;
  gap: var(--espace-xs);
  margin-top: var(--espace-lg);
  color: rgba(246, 244, 240, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: var(--echelle-xs);
}
.expertises-intro__scroll i {
  display: block;
  width: 72px;
  height: 1px;
  background: linear-gradient(90deg, var(--c-orange), transparent);
}

.expertise-cinema__panneau {
  padding-top: calc(var(--hauteur-header-reduit) + var(--espace-lg));
  padding-bottom: var(--espace-lg);
  max-height: 100svh;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(222, 114, 47, 0.6) transparent;
}
.expertise-cinema__panneau::-webkit-scrollbar { width: 4px; }
.expertise-cinema__panneau::-webkit-scrollbar-thumb { background: rgba(222, 114, 47, 0.6); }
.expertise-cinema__entete {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: end;
  gap: var(--espace-md);
  margin-bottom: var(--espace-sm);
}
.expertise-cinema__numero {
  font-family: var(--police-technique);
  font-size: clamp(3rem, 4.6vw, 5.2rem);
  font-weight: 800;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 1px var(--c-orange);
}
.expertise-cinema h2 {
  font-size: clamp(2rem, 3.25vw, 4.2rem);
  line-height: 1;
  max-width: 13ch;
}
.expertise-cinema__resume {
  max-width: 50ch;
  color: rgba(246, 244, 240, 0.78);
  margin-bottom: var(--espace-md);
}

.expertise-etapes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.45rem;
  margin-block: var(--espace-md);
}
.expertise-etapes--courtes {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.expertise-etapes li {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.65rem;
  border: 1px solid rgba(246, 244, 240, 0.12);
  background: rgba(255, 255, 255, 0.035);
  opacity: 0.38;
  transform: translateY(4px);
  transition: opacity 220ms ease, transform 220ms ease, border-color 220ms ease, background 220ms ease;
}
.expertise-etapes li[data-actif="true"] {
  opacity: 1;
  transform: translateY(0);
  border-color: rgba(222, 114, 47, 0.72);
  background: rgba(222, 114, 47, 0.11);
}
.expertise-etapes li[data-passe="true"] {
  opacity: 0.68;
}
.expertise-etapes li span {
  color: var(--c-orange-clair);
  font-family: var(--police-technique);
  font-size: 0.68rem;
}
.expertise-etapes li strong {
  font-size: 0.72rem;
  line-height: 1.25;
  text-transform: uppercase;
  letter-spacing: 0.035em;
}

.expertise-cinema__details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--espace-md);
  margin-block: var(--espace-md);
}
.expertise-cinema__details h3 {
  color: var(--c-orange-clair);
  font-size: var(--echelle-sm);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.35rem;
}
.expertise-cinema .liste-prestations li {
  padding-block: 0.32rem;
  border-color: rgba(246, 244, 240, 0.12);
  color: rgba(246, 244, 240, 0.72);
  font-size: 0.78rem;
  line-height: 1.3;
}
.expertise-cinema .liste-prestations li::before { color: var(--c-orange); }

.expertises-fin {
  display: flex;
  align-items: center;
}
.expertises-fin__contenu {
  padding-block: calc(var(--hauteur-header) + var(--espace-xl)) var(--espace-2xl);
}
.expertises-fin h2 {
  font-size: clamp(2.3rem, 4vw, 4.8rem);
  max-width: 12ch;
  line-height: 1;
  margin-block: var(--espace-sm) var(--espace-md);
}
.expertises-fin__contenu > p:not(.entete-section__eyebrow) {
  max-width: 45ch;
  color: rgba(246, 244, 240, 0.76);
  margin-bottom: var(--espace-lg);
}

.page-expertises-cinema .pied-page {
  border-top: 1px solid rgba(246, 244, 240, 0.08);
}

@media (max-width: 1180px) {
  .expertises-intro::before,
  .expertise-cinema::before,
  .expertises-fin::before { width: 56vw; }
  .expertises-intro__contenu,
  .expertise-cinema__panneau,
  .expertises-fin__contenu { width: 56%; }
  .expertise-etapes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .expertises-3d {
    position: fixed;
    height: 44svh;
    top: var(--hauteur-header-reduit);
    bottom: auto;
  }
  .expertises-intro,
  .expertise-cinema,
  .expertises-fin {
    padding-top: 42svh;
    min-height: auto;
  }
  .expertises-intro::before,
  .expertise-cinema::before,
  .expertises-fin::before {
    width: 100%;
    top: 42svh;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
  .expertises-intro__sticky,
  .expertise-cinema__sticky {
    position: relative;
    min-height: auto;
  }
  .expertises-intro__contenu,
  .expertise-cinema__panneau,
  .expertises-fin__contenu {
    width: 100%;
    max-height: none;
    overflow: visible;
    padding-inline: var(--marge-page);
  }
  .expertises-intro__contenu,
  .expertise-cinema__panneau {
    padding-top: var(--espace-xl);
    padding-bottom: var(--espace-xl);
  }
  .expertise-cinema { min-height: 145svh; }
}

@media (max-width: 560px) {
  .expertise-cinema__entete { grid-template-columns: 52px 1fr; }
  .expertise-cinema__details { grid-template-columns: 1fr; }
  .expertise-etapes,
  .expertise-etapes--courtes { grid-template-columns: 1fr 1fr; }
  .expertise-etapes li { min-height: 54px; padding: 0.55rem; }
  .expertises-intro h1 { font-size: clamp(2.7rem, 14vw, 4.2rem); }
}