.carnet {
  padding: 96px 32px 104px;
  background: var(--paper);
}

.carnet-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.carnet-heading {
  max-width: 700px;
  margin: 0 auto 52px;
  text-align: center;
}

.carnet-eyebrow {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.carnet-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 600;
  line-height: 1.05;
}

.carnet-heading h2 em {
  color: var(--taupe);
  font-style: normal;
}

.carnet-intro {
  max-width: 580px;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 16px;
  font-weight: 300;
  line-height: 1.7;
}

.carnet-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.carnet-cell {
  margin: 0;
  border-radius: 18px;
  overflow: hidden;
}

/* Cartes de texte : titre en haut, description en bas */
.carnet-cell--text {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 44px;
  padding: 26px 24px 28px;
  background: var(--ivory-deep);
}

.carnet-cell--text h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(24px, 2.2vw, 31px);
  font-weight: 600;
  line-height: 1.1;
}

.carnet-cell--text p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  font-weight: 300;
  line-height: 1.65;
}

/* Cartes média : la boucle animée remplit tout */
.carnet-cell--media {
  aspect-ratio: 1 / 1.15;
  background: var(--ivory-deep);
}

.carnet-cell--media video,
.carnet-cell--media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Vague d'apparition, colonne par colonne */
.carnet-grid .carnet-cell:nth-child(4n + 2) {
  transition-delay: 90ms;
}

.carnet-grid .carnet-cell:nth-child(4n + 3) {
  transition-delay: 180ms;
}

.carnet-grid .carnet-cell:nth-child(4n) {
  transition-delay: 270ms;
}

@media (max-width: 900px) {
  .carnet {
    padding: 72px 24px 80px;
  }

  .carnet-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .carnet-cell--text {
    gap: 28px;
    padding: 22px 20px 24px;
  }
}

@media (max-width: 560px) {
  .carnet {
    padding: 62px 18px 70px;
  }

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

  .carnet-cell--text {
    min-height: 230px;
  }
}