body {
    font-family: Arial, sans-serif;
    background-color: #686868;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.login-container, .cadastro-container, .sucesso-container {
    background-color: #ffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.logo {
    max-width: 90%;
    height: auto;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.opcoes-container {
    margin: 20px 0;
}

.btn {
    display: block;
    margin: 10px auto;
    padding: 12px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    width: 80%;
    box-sizing: border-box;
    border: none;
    transition: background-color 0.3s;
}

.btn-primary {
    background-color: #4CAF50;
    color: #fff;
}

.btn-primary:hover {
    background-color: #45a049;
}

.btn-secondary {
    background-color: #2196F3;
    color: #fff;
}

.btn-secondary:hover {
    background-color: #1976D2;
}

.form-group {
    margin-bottom: 15px;
    text-align: left;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    box-sizing: border-box;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #4CAF50;
}

.error-message {
    color: #f44336;
    font-size: 12px;
    margin-top: 5px;
    display: none;
}

.alert {
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 5px;
    font-size: 14px;
}

.alert-info {
    background-color: #e3f2fd;
    color: #1976d2;
    border: 1px solid #bbdefb;
}

.alert-error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.alert-success {
    background-color: #e8f5e8;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.termos-container {
    display: flex;
    align-items: flex-start;
    text-align: left;
    font-size: 12px;
    margin-bottom: 15px;
}

.termos-container input[type="checkbox"] {
    margin-right: 8px;
    margin-top: 2px;
    flex-shrink: 0;
}

.termos-container a {
    color: #007BFF;
    text-decoration: none;
}

.termos-container a:hover {
    text-decoration: underline;
}

.links-container {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.link-voltar, .link-cadastro {
    color: #666;
    text-decoration: none;
    font-size: 14px;
}

.link-voltar:hover, .link-cadastro:hover {
    color: #333;
    text-decoration: underline;
}

.info-text {
    font-size: 12px;
    color: #666;
    margin-top: 15px;
}

@media (max-width: 600px) {
    .login-container, .cadastro-container {
        padding: 15px;
        max-width: 100%;
    }
    
    .btn {
        font-size: 14px;
        padding: 10px;
    }
    
    .links-container {
        flex-direction: column;
        gap: 10px;
    }
}

/* Modo minimalista para Captive Network Assistant do iOS */
html.ios-cna, html.ios-cna body {
    height: auto !important;
    min-height: 100% !important;
    min-height: -webkit-fill-available !important;
    overflow: auto !important;
    -webkit-overflow-scrolling: touch;
    background-attachment: scroll !important;
}

/* Containers comuns do layout: substituir 100vh/fixed no iOS */
html.ios-cna .vh-100,
html.ios-cna .full-viewport,
html.ios-cna .wrapper,
html.ios-cna .container-full,
html.ios-cna .login-container,
html.ios-cna .cadastro-container,
html.ios-cna .sucesso-container {
    height: auto !important;
    min-height: 100% !important;
    min-height: -webkit-fill-available !important;
}

html.ios-cna .fixed,
html.ios-cna .fixed-top,
html.ios-cna .fixed-bottom,
html.ios-cna .hero,
html.ios-cna .cover {
    position: static !important;
}

/* Evitar gaps por safe-area */
html.ios-cna body {
    padding: env(safe-area-inset-top) env(safe-area-inset-right)
             env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* Botões e inputs com touch amigável */
html.ios-cna button,
html.ios-cna input,
html.ios-cna select {
    font-size: 16px; /* evita zoom automático do iOS */
}

/* Ajustes específicos para o layout do hotspot no iOS CNA */
html.ios-cna body {
    background-color: #686868;
    display: block !important;
    justify-content: normal !important;
    align-items: normal !important;
    min-height: auto !important;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

html.ios-cna .login-container,
html.ios-cna .cadastro-container,
html.ios-cna .sucesso-container {
    background-color: #ffff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    position: static !important;
}

/* Garantir que o layout funcione sem flexbox no iOS CNA */
html.ios-cna body {
    text-align: center;
}

html.ios-cna .login-container,
html.ios-cna .cadastro-container,
html.ios-cna .sucesso-container {
    display: inline-block;
    vertical-align: top;
    text-align: center;