.div-meio {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    min-height: calc(100vh - 160px);
}

.container {
    width: 100%;
    max-width: 450px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.auth-card {
    background-color: white;
    border-radius: 16px;
    box-shadow: 
        0 15px 35px rgba(50, 50, 93, 0.1), 
        0 5px 15px rgba(0, 0, 0, 0.07);
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.auth-card:hover {
    transform: translateY(-5px);
    box-shadow: 
        0 18px 40px rgba(50, 50, 93, 0.15), 
        0 8px 20px rgba(0, 0, 0, 0.1);
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #FF6B6B, #FFD166, #06D6A0, #118AB2);
    background-size: 400% 100%;
    animation: gradientShift 8s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

h2 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    font-weight: 700;
    position: relative;
    padding-bottom: 0.5rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, #FF6B6B, #FFD166, #06D6A0, #118AB2);
    border-radius: 2px;
}

.text-center {
    text-align: center;
}

.mb-3, .mb-4 {
    margin-bottom: 1.2rem;
}

.mb-4 {
    margin-bottom: 1.8rem;
}

/* ===== FORMULÁRIO ===== */
.form-label {
    display: block;
    margin-bottom: 0.6rem;
    font-weight: 600;
    color: #34495e;
    font-size: 0.95rem;
    transition: color 0.3s ease;
}


.form-control {
    width: 350px;
    padding: 0.85rem 1.2rem;
    border: 2px solid #e8ecef;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #f8f9fa;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.form-control:focus {
    outline: none;
    border-color: #3F448C;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.15), inset 0 2px 4px rgba(0, 0, 0, 0.05);
    background-color: white;
    transform: translateY(-1px);
}



/* ===== BOTÕES ===== */
.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    border: 2px solid transparent;
    padding: 0.85rem 1.5rem;
    font-size: 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #131c46 0%, #142157 100%);
    color: white;
    box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #142157 0%, #131c46 100%);
    transform: translateY(-2px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.w-100 {
    width: 100%;
}

/* ===== ALERTAS ===== */
.alert {
    padding: 1rem 1.2rem;
    margin-bottom: 1.5rem;
    border-radius: 10px;
    font-size: 0.9rem;
    border-left: 4px solid;
    animation: slideIn 0.3s ease-out;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-success {
    background-color: #f0f9f4;
    color: #0f5132;
    border-color: #2ecc71;
    box-shadow: 0 2px 5px rgba(46, 204, 113, 0.1);
}

.alert-danger {
    background-color: #fdf2f2;
    color: #721c24;
    border-color: #e74c3c;
    box-shadow: 0 2px 5px rgba(231, 76, 60, 0.1);
}

.alert p {
    margin: 0.3rem 0;
}

.alert p:first-child {
    margin-top: 0;
}

.alert p:last-child {
    margin-bottom: 0;
}

/* ===== LINKS ===== */
.text-decoration-none {
    text-decoration: none;
}

a {
    color: #2d2c55;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
    text-decoration: none;
}



a:hover {
    color: #0952be;
    transition: all 0.3s ease;
    font-weight: 600;
    position: relative;
    text-decoration: none;
}





/* ===== FUNCIONALIDADES DE SENHA ===== */
.password-container {
    position: relative;
}

.password-toggle {
    position: absolute;
    right: -15px;
    top: 55px;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: #7f8c8d;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.password-toggle:hover {
    color: #000657;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 768px) {
    .div-cabecalho {
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
        padding: 0.4rem 0.8rem;
    }
    

    .auth-card {
        padding: 1.8rem;
        margin: 1rem;
    }
    
    .div-meio {
        padding: 1rem;
    }
    
    .auth-card:hover {
        transform: none;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: 1.5rem;
        border-radius: 12px;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .form-control {
        padding: 0.75rem 1rem;
    }
    
    .btn {
        padding: 0.75rem 1.2rem;
    }
}

/* ===== ACESSIBILIDADE ===== */
/* Foco visível para usuários de teclado */
button:focus, 
a:focus, 
input:focus {
    outline: 3px solid #3498db;
    outline-offset: 2px;
}

/* Esconder outline para usuários de mouse, mas manter para teclado */
body:not(.user-is-tabbing) button:focus,
body:not(.user-is-tabbing) a:focus,
body:not(.user-is-tabbing) input:focus {
    outline: none;
}

/* Alto contraste para usuários que preferem */
@media (prefers-contrast: high) {
    .form-control {
        border-width: 3px;
    }
    
    .btn {
        border-width: 3px;
    }
}

/* Redução de movimento para usuários sensíveis */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .auth-card::before {
        animation: none;
        background: #3498db;
    }
    
    .auth-card:hover {
        transform: none;
    }
}

/* ===== ANIMAÇÕES ADICIONAIS ===== */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.02); }
    100% { transform: scale(1); }
}

.btn-primary:focus {
    animation: pulse 0.5s ease;
}

/* ===== ESTILOS PARA ESTADOS DE CARREGAMENTO ===== */
.btn.loading {
    opacity: 0.7;
    pointer-events: none;
    position: relative;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-left: -10px;
    margin-top: -10px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s ease infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Melhor contraste para texto */
p, label, .form-label {
    color: #2c3e50;
}

/* Espaçamento consistente entre elementos do formulário */
form > * {
    margin-bottom: 1rem;
}

/* Indicador visual para campos obrigatórios */
.form-label:after {
    content: " *";
    color: #e74c3c;
}