body {
    margin: 0;
    font-family: Arial, sans-serif;
    overflow: hidden;
    position: relative;
    min-height: 100vh;
    color: #fff;
    text-align: center;
    background-color: #1b3f2a;
    background-image: url("assets/up-arrows.svg");
    background-size: 100px auto;
    background-repeat: repeat;
    animation: scrollBackground 20s linear infinite;
}

body.down {
    background-color: #3f1b1b;
    background-image: url("assets/down-arrows.svg");
    animation: scrollBackgroundDown 20s linear infinite;
}

@keyframes scrollBackground {
    from {
        background-position: 0 0;
    }
    to {
        background-position: 0 -1000px;
    }
}

@keyframes scrollBackgroundDown {
    from {
        background-position: 0 -1000px;
    }
    to {
        background-position: 0 0;
    }
}

header {
    background: rgba(0, 0, 0, 0.4);
    padding: 1.5rem 1rem;
    position: relative;
    z-index: 2;
}

header h1 {
    font-size: 2.5rem;
    margin: 0;
}

.image-container {
    margin-top: 30px;
    position: relative;
    z-index: 2;
}

.market-image {
    max-width: 90vw;
    max-height: 70vh;
    height: auto;
    width: auto;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

main {
    margin: 2rem auto;
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 1rem
}