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

/* Page center */
body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #0f2027;
    font-family: Arial, sans-serif;
}

/* Slider container */
.slider-container {
    position: relative;
    width: 90%;
    max-width: 700px;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}

/* Slider image */
.slider img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: opacity 0.5s ease-in-out;
}

/* Navigation buttons */
.nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.6);
    color: white;
    border: none;
    font-size: 24px;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 50%;
}

.prev {
    left: 10px;
}

.next {
    right: 10px;
}

/* Dots */
.dots {
    position: absolute;
    bottom: 10px;
    width: 100%;
    text-align: center;
}

.dots span {
    display: inline-block;
    height: 10px;
    width: 10px;
    margin: 0 4px;
    background: #bbb;
    border-radius: 50%;
    cursor: pointer;
}

.dots .active {
    background: #ffffff;
}

/* Mobile responsiveness */
@media (max-width: 480px) {
    .slider img {
        height: 250px;
    }
}