/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    overflow-x: hidden;
}

/* Hero Section - Gradiente suave */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    position: relative;
}

/* Navbar fixa com blur */
#mainNav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Botões personalizados */
.btn-custom {
    border-radius: 50px;
    padding: 12px 30px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-custom:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Cards de funcionalidades */
.card {
    border-radius: 15px;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

/* Responsivo */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
        padding-top: 100px !important;
    }
    
    .display-4 {
        font-size: 1.8rem;
    }
}