* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.card-slider {
  width: 100vw;
  height: 100vh;
  position: relative;
  overflow: hidden;
}

/* 🎥 Vidéo de fond */
.background-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
  opacity: 0;
  animation: fadeIn 2s ease forwards;
  filter: brightness(0.85);
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.nav .next,
.nav .prev {
  position: absolute;
  height: 4rem;
  width: 4rem;
  stroke: #fff;
  cursor: pointer;
  z-index: 3;
  pointer-events: auto;
}

.nav .next {
  bottom: 4rem;
  right: 4rem;
  transform: scale(2) rotate(180deg);
}

.nav .prev {
  top: 4rem;
  left: 4rem;
  transform: scale(2);
}

.card-slider .item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  pointer-events: none;
}

.card-slider .item.is-active {
  pointer-events: auto;
}

.card-slider .item .title {
  position: absolute;
  bottom: 0%;
  left: 50%;
  transform: translate(-50%, -10%);
  margin: 0;
  font-family: "Melodrama";
  font-size: 10vw;
  font-weight: 100;
  color: #ffffff;
  text-transform: uppercase;
  line-height: 1.5;
  z-index: 2;
  animation: floatText 6s ease-in-out infinite;
}

.card-slider .item .title span {
  display: inline-block;
  white-space: nowrap;
}

.card-slider .item .title .letter {
  display: inline-block;
}

.card {
  height: 400px;
  width: 300px;
  position: relative;
}

.card img {
  width: 100%;
  object-fit: contain;
  opacity: 1;
  animation: float 4s ease-in-out infinite;
}

.card .card-bg {
  position: absolute;
  top: 0;
  left: 0%;
  width: 100%;
  height: 100%;
  transform: scale(4.2);
  transition: all 2s cubic-bezier(0.86, 0, 0.07, 1);
}

.card.is-active .card-bg {
  transform: scale(1);
}

@media (max-width: 900px) {
  .card-slider .item .title {
    font-size: 16vw;
  }
}

/* Variante bleue */
.item.blue-text .title {
  color: #ffffff;
  animation: floatText 6s ease-in-out infinite;
}

/* Animation flottement texte */
@keyframes floatText {
  0%, 100% {
    transform: translate(-50%, -10%);
  }
  50% {
    transform: translate(-50%, -15%);
  }
}

/* Animation flottement image */
@keyframes float {
  0%, 100% {
    transform: translateY(0) rotate(0deg) scale(4.2);
  }
  50% {
    transform: translateY(-20px) rotate(2deg) scale(4.2);
  }
}

/* --- TABLETTES / petits laptops --- */
@media (max-width: 1024px) {
  .nav .next,
  .nav .prev {
    height: 3rem;
    width: 3rem;
  }

  .nav .next {
    bottom: 3rem;
    right: 2.5rem;
    transform: scale(1.5) rotate(180deg);
  }

  .nav .prev {
    top: 3rem;
    left: 2.5rem;
    transform: scale(1.5);
  }

  .card-slider .item .title {
    font-size: 12vw;
    transform: translate(-50%, -5%);
  }
}

/* --- SMARTPHONES --- */
@media (max-width: 768px) {
  .nav .next,
  .nav .prev {
    height: 2.5rem;
    width: 2.5rem;
    stroke-width: 1.2px;
  }

  .nav .next {
    bottom: 2rem;
    right: 1.5rem;
    transform: scale(1.3) rotate(180deg);
  }

  .nav .prev {
    top: 2rem;
    left: 1.5rem;
    transform: scale(1.3);
  }

  .card-slider .item .title {
    font-size: 14vw;
    bottom: 4%;
    line-height: 1.2;
    text-align: center;
    transform: translate(-50%, 0);
  }
}

/* --- TÉLÉPHONES ÉTROITS (ex: iPhone SE, Android petit format) --- */
@media (max-width: 480px) {
  .nav .next,
  .nav .prev {
    height: 2rem;
    width: 2rem;
  }

  .nav .next {
    bottom: 1.5rem;
    right: 1.2rem;
    transform: scale(1.2) rotate(180deg);
  }

  .nav .prev {
    top: 1.5rem;
    left: 1.2rem;
    transform: scale(1.2);
  }

  .card-slider .item .title {
    font-size: 18vw;
    bottom: 6%;
    transform: translate(-50%, 0);
  }

  .card img {
    width: 80%;
  }
}