@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap');

body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    color: white;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #000046, #1cb5e0);
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(28, 181, 224, 0.4), transparent);
    animation: auroraFlow 15s infinite alternate;
    z-index: 1;
}

header h1 {
    font-size: 48px;
    font-weight: bold;
    z-index: 2;
    position: relative;
}

header p {
    font-size: 20px;
    z-index: 2;
    position: relative;
}

@keyframes auroraFlow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: rgba(0, 0, 0, 0.6);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.card::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(28, 181, 224, 0.2), transparent);
    transform: rotate(45deg);
    z-index: -1;
}

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

article {
    background: rgba(0, 0, 0, 0.8);
    padding: 40px;
    border-radius: 10px;
    margin-top: -100px;
    position: relative;
    z-index: 3;
}

article h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

article h3 {
    font-size: 24px;
    margin-top: 30px;
}

article p {
    font-size: 16px;
    margin-bottom: 20px;
}

pre {
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

code {
    color: #1cb5e0;
    font-family: 'Courier New', Courier, monospace;
}

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

th, td {
    padding: 10px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

@media (max-width: 768px) {
    header h1 {
        font-size: 36px;
    }

    header p {
        font-size: 16px;
    }

    article {
        padding: 20px;
        margin-top: -50px;
    }

    pre {
        font-size: 14px;
    }
}