body {
    margin: 0;
    font-family: Arial;
    background: #0f172a;
    color: #e2e8f0;
}

.menu {
    position: fixed;
    width: 100%;
    background: rgba(0,0,0,0.8);
    padding: 15px;
    text-align: center;
}

.menu a {
    color: white;
    margin: 0 10px;
    text-decoration: none;
}

.hero {
    padding: 140px 20px;
    text-align: center;
    background: linear-gradient(135deg,#020617,#1e293b);
}

.btn {
    background: #22c55e;
    padding: 15px 25px;
    color: white;
    border-radius: 8px;
    text-decoration: none;
}

.cards {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.card {
    background: #1e293b;
    padding: 20px;
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
}

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

.whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #22c55e;
    padding: 15px;
    border-radius: 50%;
}