body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: #f4f4f9;
    background: linear-gradient(135deg, #0d1b2a, #162447, #1b1b2f);
    overflow-x: hidden;
}
header {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}
header h1 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 10px;
}
header p {
    font-size: 1.2rem;
    color: #dfe6e9;
    max-width: 800px;
    margin: 0 auto;
}
section {
    position: relative;
    padding: 80px 20px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}
section:nth-child(odd) {
    background: linear-gradient(135deg, #1e3c72, #2a5298);
}
section:nth-child(even) {
    background: linear-gradient(135deg, #2c3e50, #4ca1af);
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}
.card:hover {
    transform: translateY(-10px);
}
.card img {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 15px;
}
.card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: #ff6f61;
}
.card p {
    font-size: 1rem;
    color: #ecf0f1;
}
.code-block {
    background: #1e272e;
    color: #66fcf1;
    padding: 15px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.4;
}
pre code {
    white-space: pre-wrap;
    word-break: break-word;
}
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    .grid-container {
        grid-template-columns: 1fr;
    }
    .card {
        padding: 15px;
    }
}