body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f7f7f7;
    color: #222;
}

header {
    background: #111;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

header svg {
    margin-bottom: 10px;
}

header p {
    font-size: 20px;
    margin-top: 10px;
    opacity: 0.9;
}

nav {
    background: #0a0a0a;
    padding: 12px;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    font-size: 16px;
}

nav a.active {
    color: #00A8FF;
}

.section {
    padding: 60px 20px;
    max-width: 1100px;
    margin: auto;
}

.section h2 {
    font-size: 32px;
    margin-bottom: 20px;
    text-align: center;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 25px;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.08);
}

.card h3 {
    margin-top: 0;
    font-size: 22px;
}

footer {
    background: #0a0a0a;
    color: white;
    padding: 30px;
    text-align: center;
    margin-top: 40px;
}