body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #0b0f1a;
    color: #fff;
}

header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(45deg, #1b2236, #0b0f1a);
}

h1 {
    margin: 0;
    font-size: 2.8rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    padding: 20px;
    gap: 20px;
}

.card {
    background: #151a28;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 0 15px rgba(0,0,0,0.3);
}

.card h2 {
    margin-top: 0;
    color: #8dd1ff;
}

.section-title {
    font-weight: bold;
    margin-top: 15px;
    color: #9bbbed;
}