body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    color: #222;
}

header {
    background: #1a1a1a;
    color: white;
    padding: 20px 40px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.4rem;
}

nav {
    background: #333;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
    padding: 12px 0;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #ffcc00;
}

.container {
    max-width: 1000px;
    margin: 40px auto;
    padding: 0 20px;
}

h2 {
    color: #333;
    border-left: 5px solid #ffcc00;
    padding-left: 10px;
}

.section {
    background: white;
    padding: 25px;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

footer {
    background: #1a1a1a;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

.hero {
    background: url('https://upload.wikimedia.org/wikipedia/commons/6/6f/Chess_Board.svg') center/cover no-repeat;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-shadow: 2px 2px 5px black;
    font-size: 2rem;
    font-weight: bold;
}

@media (max-width: 600px) {
    header h1 { font-size: 1.8rem; }
    .hero { font-size: 1.4rem; }
}
.button {
    display: inline-block;
    background-color: #007BFF;
    color: white;
    padding: 4px 10px;
    margin-left: 10px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.9em;
}

.button:hover {
    background-color: #0056b3;
}