.pagina-auth {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, rgba(183,150,87,0.08), transparent 60%), var(--carvao);
    padding: 32px 16px;
}

.auth-wrapper {
    width: 100%;
    max-width: 460px;
}

.auth-card {
    background: linear-gradient(180deg, rgba(24,52,40,0.6), rgba(32,35,31,0.9));
    border: 1px solid rgba(183, 150, 87, 0.2);
    border-radius: 18px;
    padding: 40px 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.auth-brand {
    text-align: center;
    margin-bottom: 24px;
}

.auth-brand-sigla {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--dourado);
}

.auth-brand-linha {
    display: block;
    width: 60px;
    height: 2px;
    background: var(--dourado);
    margin: 10px auto;
    opacity: .5;
}

.auth-brand-subtitulo {
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--areia);
    opacity: .8;
    margin: 0;
}

.auth-titulo {
    font-size: 22px;
    margin: 0 0 6px;
    color: var(--marfim);
    text-align: center;
}

.auth-descricao {
    text-align: center;
    color: var(--areia);
    font-size: 13px;
    margin: 0 0 24px;
    opacity: .85;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-alerta {
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 18px;
    font-size: 13px;
}

.auth-alerta ul {
    margin: 0;
    padding-left: 18px;
}

.auth-alerta-erro {
    background: rgba(180, 84, 74, 0.15);
    border: 1px solid rgba(180, 84, 74, 0.4);
    color: #E7A79E;
}

.auth-alerta-sucesso {
    background: rgba(76, 139, 107, 0.15);
    border: 1px solid rgba(76, 139, 107, 0.4);
    color: #9BD4B6;
}

.auth-rodape {
    text-align: center;
    margin-top: 22px;
    font-size: 13px;
    color: var(--areia);
}

.auth-rodape a {
    color: var(--dourado);
    font-weight: 600;
}

.codigo-input {
    text-align: center;
    letter-spacing: 10px;
    font-size: 22px;
    font-weight: 700;
}

@media (max-width: 480px) {
    .auth-card {
        padding: 30px 22px;
    }
}