body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: #05070D;
    color: white;
}

header {
    display: flex;
    justify-content: space-between;
    padding: 20px 60px;
    background: rgba(10,31,60,0.9);
}

.logo {
    height: 50px;
}

nav a {
    color: white;
    margin-left: 25px;
    text-decoration: none;
}

.hero {
    text-align: center;
    padding: 180px 20px;
}

.hero h1 {
    font-size: 48px;
}

.btn {
    background: #1E90FF;
    padding: 12px 25px;
    text-decoration: none;
    color: white;
    margin-top: 20px;
    display: inline-block;
}

.highlight {
    text-align: center;
    padding: 80px;
}

.services-preview {
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 80px;
}

.card {
    background: #0A1F3C;
    padding: 30px;
    width: 250px;
}

.whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #25D366;
    padding: 15px;
    border-radius: 50%;
}