body {
    font-family: 'Arial', sans-serif;
    background: #121212;
    color: #e0e0e0;
    margin: 0;
    padding: 0;
}

header {
    background: #1a73e8;
    color: white;
    text-align: center;
    padding: 20px;
    border-radius: 0 0 20px 20px;
}

nav ul {
    background: #333;
    padding: 10px;
    text-align: center;
    border-radius: 10px;
    margin: 10px auto;
    max-width: 90%;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: #e0e0e0;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 8px;
    transition: 0.3s;
}

nav ul li a:hover {
    background: #1a73e8;
}

main {
    padding: 20px;
    max-width: 800px;
    margin: 20px auto;
    background: #1f1f1f;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
    border-radius: 15px;
}

pre {
    background: #1e1e1e;
    color: white;
    padding: 15px;
    border-radius: 10px;
    overflow-x: auto;
    position: relative;
}

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

table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    border-radius: 10px;
    overflow: hidden;
}

table, th, td {
    border: 1px solid #555;
    padding: 12px;
}

th {
    background: #1a73e8;
    color: white;
}

tr:nth-child(even) {
    background: #333;
}

button {
    padding: 8px 12px;
    background: #1a73e8;
    border: none;
    color: white;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s;
}

button:hover {
    background: #0c58c0;
}

footer {
    text-align: center;
    padding: 15px;
    background: #1a73e8;
    color: white;
    border-radius: 20px 20px 0 0;
    margin-top: 20px;
}