html, body {
    height: 100%;
    margin: 0;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: #161616 !important; /* 🖤 fond night mode */
    color: #eaeaea;
}

/*  --
            CAROUSEL
 --- */

.carousel{
    margin: 100px auto;
    width: 90%;
    display: flex;
    overflow-x: auto;
    border-radius: 10px;
    position: relative;
}
.carousel::-webkit-scrollbar{
    display:none;
}

.group{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:0;               
    padding-right:0;      
    animation: spin 35s infinite linear;
}

.card{
    flex: 0 0 auto;
    width: 1400px;
    height: 800px;
    overflow: hidden;
    border-radius: .4em;
    background: #111; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.6);
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Animation */
@keyframes spin{
    from{ translate: 0; }
    to { translate: -100%; }
}

/*  --
         TITLE on CAROUSEL (night)
 */

.carousel-title {
    background-color: rgba(0, 0, 0, 0.45); 
    border-radius: 15px;
    padding: 12px 18px;
    text-align:center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    font-size: 3.5rem;
    font-weight: bold;
    color: #ffffff;
    text-shadow: 
        0 0 10px rgba(0,0,0,0.9),
        0 0 25px rgba(0,0,0,1);
    z-index: 20;
    pointer-events: none;
}

/*  --
               BUTTON
 --- */

.btn-decouvrir {
    padding: .8rem 2rem;
    background: linear-gradient(135deg, #4a8cff, #0050c9);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;

    box-shadow: 
        0 4px 12px rgba(0, 0, 0, 0.5),
        0 0 12px rgba(58,121,255,0.35); 

    transition: transform .2s ease, box-shadow .2s ease;
}

.btn-decouvrir:hover {
    transform: translate(-50%, -53%) scale(1.05);
    box-shadow: 
        0 6px 16px rgba(0, 0, 0, 0.7),
        0 0 14px rgba(58,121,255,0.55);
}

.carousel-btn {
    position: absolute;
    top: 68%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 30;
}

/*  --
            MOBILE RESPONSIVE
 --- */

@media (max-width: 768px) {
    .card {
        width: 100%;
        height: 450px;
    }

    .carousel-title {
        font-size: 2rem;
        top: 42%;
        padding: 10px 14px;
    }

    .carousel-btn {
        top: 70%;
    }

    .btn-decouvrir {
        font-size: 1rem;
        padding: .6rem 1.5rem;
    }

    .group {
        animation-duration: 10s;
    }
}

@media (max-width: 480px){
    .card {
        height: 380px;
    }

    .carousel-title {
        font-size: 1.7rem;
        top: 40%;
    }

    .carousel-btn {
        top: 72%;
    }

    .btn-decouvrir {
        font-size: .9rem;
        padding: .5rem 1.2rem;
    }
}