html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
    background-color: #0a2b3e;
    padding: 40px 0 20px;
    margin-top: auto;
}

/* Manter cor única para todos os links do footer */
.footer-column a,
.footer-bottom a,
.social-links a {
    color: #e0e0e0 !important;
    text-decoration: none !important;
    transition: opacity 0.3s ease;
}

    /* Efeito hover e active com a MESMA cor (apenas opacidade/brilho) */
    .footer-column a:hover,
    .footer-column a:active,
    .footer-column a:focus,
    .footer-bottom a:hover,
    .footer-bottom a:active,
    .footer-bottom a:focus,
    .social-links a:hover,
    .social-links a:active,
    .social-links a:focus {
        color: #e0e0e0 !important;
        opacity: 0.8;
        text-decoration: none !important;
    }

/* Links das redes sociais específicos */
.social-links a {
    display: inline-block;
    width: 35px;
    height: 35px;
    line-height: 35px;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    margin-right: 8px;
}

    .social-links a:hover {
        background-color: rgba(255, 255, 255, 0.2);
    }

/* Links na lista */
.footer-column ul li a i {
    margin-right: 8px;
    color: #e0e0e0 !important;
}

.footer-column ul li a:hover i {
    opacity: 0.8;
}

/* Links do bottom */
.footer-bottom a {
    color: #e0e0e0;
    margin-left: 15px;
}

/* Botão newsletter */
.btn-primary {
    background-color: #0066cc;
    border: none;
    transition: opacity 0.3s ease;
}

    .btn-primary:hover {
        background-color: #0066cc;
        opacity: 0.9;
    }