body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #071529;
    color: white;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: #071529;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

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

nav .cta {
    background-color: #2d6cdf;
    padding: 8px 16px;
    border-radius: 6px;
}

.hero {
    padding: 120px 40px;
    background: linear-gradient(180deg, #071529 0%, #0b1f3a 100%);
    text-align: left;
}

.hero h1 {
    font-size: 56px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    color: #cbd5e1;
}

.btn-primary {
    background-color: #2d6cdf;
    padding: 14px 24px;
    color: white;
    text-decoration: none;
    border-radius: 6px;
}

.services-preview {
    padding: 80px 40px;
}

.services-preview h2 {
    font-size: 36px;
    margin-bottom: 40px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.card {
    background-color: #0e223f;
    padding: 30px;
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    background-color: #13315c;
}

footer {
    padding: 30px;
    text-align: center;
    background-color: #071529;
    color: #cbd5e1;
}