body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0f0f0f;
    color: #e5e5e5;
}

header {
    background: #1a1a1a;
    padding: 20px;
    text-align: center;
    font-size: 28px;
    font-weight: bold;
    letter-spacing: 1px;
}

nav {
    display: flex;
    justify-content: center;
    gap: 40px;
    padding: 15px;
    background: #141414;
    border-bottom: 1px solid #333;
}

nav a {
    color: #e5e5e5;
    text-decoration: none;
    font-size: 18px;
    transition: 0.2s;
}

nav a:hover {
    color: #4da3ff;
}

.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.card {
    background: #1a1a1a;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    transition: 0.2s;
    border: 1px solid #333;
}

.card:hover {
    transform: translateY(-5px);
    border-color: #4da3ff;
}

.card img {
    width: 60px;
    margin-bottom: 15px;
}

.card a {
    color: #4da3ff;
    text-decoration: none;
    font-size: 18px;
}