.carousel {
    position: relative;
    width: 100%;
    max-width: 1200px;
    height: 400px;

    margin: 20px auto 50px auto;         /* more breathing space */
    overflow: hidden;

    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* Inner container */
.carousel-inner {
    position: relative;
    width: 100%;
    height: 100%;
}

/* Slides */
.carousel-item {
    position: absolute;
    width: 100%;
    height: 100%;

    opacity: 0;
    animation: fade 15s infinite;
}

/* Delay per image */
.carousel-item:nth-child(1) { animation-delay: 0s; }
.carousel-item:nth-child(2) { animation-delay: 5s; }
.carousel-item:nth-child(3) { animation-delay: 10s; }

/* Image styling */
.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Fade animation */
@keyframes fade {
    0%   { opacity: 0; }
    10%  { opacity: 1; }
    30%  { opacity: 1; }
    40%  { opacity: 0; }
    100% { opacity: 0; }
}