:root {
    --primary-color: #004a99; /* Azul Bancário */
    --secondary-color: #25d366; /* Verde WhatsApp */
    --accent-color: #ffc107; /* Amarelo Atenção */
}

body {
    font-family: 'Inter', Arial, sans-serif;
    color: #333;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0, 74, 153, 0.9), rgba(0, 74, 153, 0.9)), 
                url('https://images.unsplash.com/photo-1573163281530-0bbe3b246a4d?auto=format&fit=crop&q=80&w=1470') no-repeat center center/cover;
    min-height: 80vh;
    padding: 100px 0;
}

/* Cards de Produtos */
.product-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #eee;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.icon-box {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.underline {
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin-top: 10px;
}

/* Botão WhatsApp Flutuante */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 20px;
    right: 20px;
    background-color: var(--secondary-color);
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #fff;
}

/* Responsividade */
@media (max-width: 768px) {
    .hero-section {
        padding: 60px 0;
        text-align: center;
    }
    .display-4 {
        font-size: 2rem;
    }
}