:root {
    --primary-green: #8BC34A;
    --secondary-blue: #2196F3;
    --background-milky: #F5F5DC;
    --accent-yellow: #FFC107;
    --text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

body {
    font-family: 'Roboto', sans-serif;
    background: radial-gradient(circle, var(--primary-green), var(--secondary-blue));
    color: #fff;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    animation: aurora-move 15s linear infinite;
}

@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.2);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    text-shadow: var(--text-shadow);
    margin: 0;
}

section {
    padding: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
}

.card {
    background: var(--background-milky);
    color: var(--primary-green);
    width: 100%;
    max-width: 300px;
    margin: 10px;
    padding: 15px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

article {
    background: rgba(255, 255, 255, 0.8);
    color: #333;
    margin: 20px;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

article h2, article h3 {
    font-family: 'Playfair Display', serif;
    color: var(--secondary-blue);
    text-shadow: var(--text-shadow);
}

article pre {
    background: #f4f4f4;
    color: #333;
    padding: 10px;
    border-radius: 5px;
    overflow-x: auto;
}

footer {
    text-align: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    color: #fff;
    font-size: 0.9rem;
}

@media (min-width: 768px) {
    .card {
        width: calc(50% - 20px);
    }
}

@media (min-width: 1024px) {
    .card {
        width: calc(33.33% - 20px);
    }
}