body {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    min-height: 100vh;
    background: #f4f6f9;
    font-family: Arial, sans-serif;
}

h1 {
    margin: 0;
    padding: 2rem 1rem 0;
    text-align: center;
    color: #242222;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.slider {
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 0;
}

.container {
    width: min(90vw, 700px);
    min-height: 80vh;
    border: 8px solid rgb(129, 187, 174);
    border-radius: 10px;
    box-shadow: 10px 10px 35px rgba(0, 0, 0, 0.6);
    position: relative;
    overflow: hidden;
    background: #000;
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: white;
    color: #333;
    padding: 0.5em 0.7em;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 2;
}

.btn-left {
    left: 1rem;
}

.btn-right {
    right: 1rem;
}