body, html {
    margin: 0;
    padding: 0;
    font-family: 'Roboto', sans-serif;
    background: radial-gradient(circle, rgb(25, 25, 112), rgb(0, 0, 0));
    color: #ffffff;
    overflow-x: hidden;
}

header {
    position: relative;
    height: 40vh;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 255, 128, 0.3), transparent);
    animation: aurora-move 15s linear infinite;
    transform-origin: center;
}

@keyframes aurora-move {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    z-index: 10;
    text-shadow: 0 0 10px rgba(0, 255, 128, 0.8);
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
}

.card:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(0, 255, 128, 0.5);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 5px;
}

.tab-menu {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.tab-item {
    padding: 10px 20px;
    margin: 0 10px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    transition: background 0.3s ease-in-out;
}

.tab-item:hover {
    background: rgba(0, 255, 128, 0.2);
}

.tab-content {
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    padding: 20px;
}

.tab-content.active {
    opacity: 1;
}

code {
    background: rgba(0, 255, 128, 0.1);
    padding: 5px;
    border-radius: 3px;
    font-family: 'Fira Sans Bold', sans-serif;
}

pre {
    background: rgba(0, 255, 128, 0.05);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    main {
        grid-template-columns: 1fr;
    }

    .tab-menu {
        flex-direction: column;
    }

    .tab-item {
        width: 100%;
        margin: 5px 0;
    }
}