:root {
    --primary-color: #032B44;
    --secondary-color: #FFFFFF;
    --natural-green: #34C759;
    --olive-green: #8DC63F;
    --gradient-bg: linear-gradient(135deg, var(--primary-color), var(--natural-green));
    --hover-glow: radial-gradient(circle, rgba(52, 199, 89, 0.3), transparent);
    --box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Lato', sans-serif;
    background: var(--gradient-bg);
    color: var(--secondary-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    text-align: center;
    padding: 20px;
    background: radial-gradient(circle, var(--primary-color), transparent);
}

header h1 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    font-size: 2.5rem;
    margin: 0;
    background: linear-gradient(90deg, var(--natural-green), var(--olive-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    padding: 20px;
}

.card {
    background: var(--secondary-color);
    color: var(--primary-color);
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    transition: all 0.3s ease;
    padding: 15px;
    position: relative;
}

.card:hover {
    box-shadow: 0px 8px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(-5px);
    background: var(--hover-glow);
}

article {
    background: var(--secondary-color);
    color: var(--primary-color);
    padding: 20px;
    border-radius: 10px;
    margin: 20px;
    box-shadow: var(--box-shadow);
}

article h2, article h3 {
    font-family: 'Roboto', sans-serif;
    font-weight: bold;
    color: var(--natural-green);
}

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

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

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, var(--primary-color), var(--natural-green));
    animation: aurora-move 15s linear infinite;
}

.planet {
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--natural-green), transparent);
    border-radius: 50%;
    animation: flyIn 2s ease-in-out forwards;
}

@keyframes flyIn {
    from {
        transform: scale(0.5) translateX(-100%);
        opacity: 0;
    }
    to {
        transform: scale(1) translateX(0);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }

    header h1 {
        font-size: 2rem;
    }

    article pre {
        font-size: 0.9rem;
    }
}