body {
    margin: 0;
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #000033, #1a0033, #00331a);
    color: #fff;
    line-height: 1.6;
    padding: 20px;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 40px 0;
    background: linear-gradient(90deg, #00ff99, #6633ff);
    color: #000;
    font-size: 2rem;
    font-weight: bold;
    border-bottom: 2px solid #fff;
}

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

.grid-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.grid-item:hover {
    transform: translateY(-10px);
}

h1, h2, h3 {
    color: #00ff99;
    font-weight: bold;
    margin-bottom: 20px;
}

p {
    font-size: 1rem;
    color: #ccc;
    margin-bottom: 15px;
}

pre {
    background: #1a0033;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
    font-size: 0.9rem;
    color: #00ff99;
    margin-bottom: 20px;
}

code {
    font-family: 'Courier New', monospace;
    color: #ff66cc;
}

.button {
    background-color: #00ff99;
    border: none;
    color: white;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
    margin: 10px 5px;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    border-radius: 5px;
}

.button:hover {
    background-color: #00cc66;
    box-shadow: 0 0 10px #00ff99;
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
}

.loader {
    border: 8px solid #f3f3f3;
    border-top: 8px solid #3498db;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
    display: block;
}

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

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

    pre {
        font-size: 0.8rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1025px) {
    .container {
        grid-template-columns: repeat(3, 1fr);
    }
}