/* Estilos Gerais */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Banner */
.banner {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    padding: 1rem 0;
}

.banner .navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

/* Menu Principal */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Conteúdo Principal */
main {
    flex: 1;
}

.card {
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    border: none;
    border-radius: 10px;
}

.card-title {
    color: #1e3c72;
    font-weight: bold;
}

/* Formulário */
.form-control:focus {
    border-color: #1e3c72;
    box-shadow: 0 0 0 0.2rem rgba(30,60,114,0.25);
}

.btn-primary {
    background-color: #1e3c72;
    border-color: #1e3c72;
}

.btn-primary:hover {
    background-color: #2a5298;
    border-color: #2a5298;
}

/* Resultado */
#result {
    transition: all 0.3s ease;
}

.alert-success {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Responsividade */
@media (max-width: 768px) {
    .banner .navbar-brand {
        font-size: 1.2rem;
    }
    
    .card {
        margin: 1rem;
    }
}