/* =========================================================
   Projets / Réalisations — refonte 2026 (CGT Alkor)
   Mobile-first. S'appuie sur le design system refonte.css.
   Animations : data-reveal (refonte.js) + data-parallax (shell.js).
   ========================================================= */

/* ---------- Hero immersif ---------- */
.project-hero {
  position: relative;
  min-height: min(78vh, 660px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  isolation: isolate;
}
.project-hero-bg {
  position: absolute;
  inset: -10% 0 auto 0;
  height: 122%;
  z-index: -2;
}
.project-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.project-hero-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(120% 80% at 20% 100%, rgba(4, 23, 48, 0.6), transparent 60%),
    linear-gradient(180deg, rgba(4, 23, 48, 0.45) 0%, rgba(4, 23, 48, 0.62) 42%, rgba(3, 15, 30, 0.96) 100%);
}
.project-hero-inner {
  position: relative;
  width: 100%;
  padding-block: clamp(48px, 9vw, 84px) clamp(34px, 6vw, 56px);
}
.project-crumb {
  margin-bottom: clamp(16px, 3vw, 26px);
}
.project-hero-eyebrow {
  display: inline-block;
  margin-bottom: 10px;
}
.project-hero-title {
  font-size: clamp(40px, 8vw, 92px);
  line-height: 0.98;
  margin: 0 0 18px;
  max-width: 16ch;
}
.project-hero-title em {
  font-style: italic;
  background: linear-gradient(180deg, var(--accent-soft), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.project-hero-lede {
  max-width: 60ch;
  margin: 0;
  color: var(--text-2);
}

/* ---------- Sélecteur d'univers (3 projets) ---------- */
.project-switch {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(28px, 5vw, 44px);
  margin-bottom: clamp(8px, 2vw, 16px);
}
.project-switch-item {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 132px;
  padding: 16px 18px;
  border-radius: var(--r-md);
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--hairline);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.5s var(--ease-luxe), border-color 0.35s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.project-switch-item[data-reveal] { transition-delay: calc(var(--reveal-i, 0) * 0.08s); }
.project-switch-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.project-switch-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-luxe);
}
.project-switch-item::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(4, 23, 48, 0.15) 0%, rgba(4, 23, 48, 0.82) 100%);
  transition: background 0.4s var(--ease-out);
}
.project-switch-meta {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.project-switch-index {
  font-family: var(--serif);
  font-size: 15px;
  font-style: italic;
  color: var(--accent-soft);
}
.project-switch-title {
  font-family: var(--serif);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.05;
}
.project-switch-item:hover {
  transform: translateY(-4px);
  border-color: rgba(97, 177, 188, 0.4);
  box-shadow: var(--shadow-1);
}
.project-switch-item:hover .project-switch-media img { transform: scale(1.06); }
.project-switch-item.is-current {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(97, 177, 188, 0.4), var(--shadow-1);
}
.project-switch-item.is-current::after {
  background: linear-gradient(180deg, rgba(8, 44, 82, 0.2) 0%, rgba(4, 23, 48, 0.8) 100%);
}
.project-switch-item.is-current .project-switch-index { color: var(--accent); }
.project-switch-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ---------- Récit éditorial (split) ---------- */
.project-story { padding-top: clamp(40px, 7vw, 72px); }
.project-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
}
.project-split-media {
  border-radius: var(--r-md);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow-1);
}
.project-split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.project-split-text .lede { margin: 14px 0 0; }
.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 4vw, 32px);
}
.project-actions .btn { width: 100%; justify-content: center; }

/* ---------- Galerie immersive ---------- */
.project-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 3vw, 26px);
  padding: clamp(34px, 6vw, 64px) clamp(16px, 4vw, 48px);
  max-width: 1440px;
  margin-inline: auto;
}
.project-gallery-figure {
  position: relative;
  margin: 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--hairline);
  box-shadow: var(--shadow-1);
  aspect-ratio: 4 / 3;
}
.project-gallery-wide { aspect-ratio: 16 / 10; }
.project-gallery-frame {
  position: absolute;
  inset: -8% 0;
  height: 116%;
}
.project-gallery-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---------- Grand CTA : projet suivant ---------- */
.project-next {
  position: relative;
  display: block;
  min-height: min(64vh, 520px);
  overflow: hidden;
  isolation: isolate;
  text-decoration: none;
  color: var(--text);
}
.project-next-bg {
  position: absolute;
  inset: -10% 0 auto 0;
  height: 122%;
  z-index: -2;
}
.project-next-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1s var(--ease-luxe);
}
.project-next-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, rgba(4, 23, 48, 0.5) 0%, rgba(3, 15, 30, 0.9) 100%);
}
.project-next-inner {
  position: relative;
  min-height: inherit;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 14px;
  padding-block: clamp(56px, 10vw, 110px);
}
.project-next-title {
  font-size: clamp(34px, 6vw, 72px);
  line-height: 1;
  margin: 0;
}
.project-next-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--text);
  transition: transform 0.5s var(--ease-luxe), background 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
}
.project-next:hover .project-next-arrow {
  transform: translateX(8px);
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-on-accent);
}
.project-next:hover .project-next-bg img { transform: scale(1.05); }
.project-next:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -4px;
}

/* ---------- Desktop ---------- */
@media (min-width: 760px) {
  .project-switch { grid-template-columns: repeat(3, 1fr); gap: 18px; }
  .project-switch-item { min-height: 168px; }
  .project-gallery {
    grid-template-columns: 1.4fr 1fr;
    align-items: stretch;
  }
  .project-gallery-figure { aspect-ratio: auto; min-height: 460px; }
  .project-gallery-wide { grid-row: span 1; }
}
@media (min-width: 1024px) {
  .project-split { grid-template-columns: 1.05fr 1fr; gap: 64px; }
  .project-split.reverse .project-split-media { order: 2; }
  .project-actions .btn { width: auto; }
}

/* ---------- Réduction de mouvement ---------- */
@media (prefers-reduced-motion: reduce) {
  .project-hero-bg,
  .project-next-bg,
  .project-gallery-frame {
    inset: 0;
    height: 100%;
    transform: none !important;
  }
}