body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #0d0d0d;
    color: #fff;
}
.header {
    text-align: center;
    font-size: 2em;
    background: linear-gradient(to right, #ff512f, #dd2476);
    padding: 20px;
}
.content {
    display: flex;
    flex-direction: column;
    gap: 1em;
    padding: 1em;
}
.panel {
    background-color: #1a1a1a;
    padding: 1em;
    border-radius: 12px;
    box-shadow: 0 0 10px #ff5722;
}