body {
    margin: 0;
    padding: 0;
    background-color: #101927;
    color: #F4F4F4;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

header {
    text-align: center;
    font-size: 2rem;
    font-weight: 500;
    margin: 32px 0 64px 0;
}

main {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 16px;
}

.box {
    display: block;
    width: 100%;
    padding: 0 16px;
    margin: 24px 0;
    border-radius: 16px;
    border: 1px solid #212c3c;
    background-color: #171F2D;
    box-sizing: border-box;
}

.link-box {
    display: block;
    width: 100%;
    padding: 0 16px;
    margin: 24px 0;
    border-radius: 16px;
    border: 1px solid #212c3c;
    background-color: #171F2D;
    box-sizing: border-box;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.link-box:hover {
    transform: translateY(-2px);
}

header a {
    color: inherit;
    text-decoration: none;
}