body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fa;
    color: #333;
}

header {
    background: #005bbb;
    color: white;
    padding: 20px 40px;
    font-size: 28px;
    font-weight: bold;
}

.container {
    padding: 40px;
    max-width: 1200px;
    margin: auto;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.12);
}

.card h2 {
    margin-top: 0;
    font-size: 22px;
    color: #005bbb;
}

.card p {
    margin-bottom: 20px;
    line-height: 1.5;
}

.btn {
    display: inline-block;
    padding: 10px 18px;
    background: #005bbb;
    color: white;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
}

.btn:hover {
    background: #004999;
}

footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    color: #777;
}