.santen-auth-form {
    max-width: 400px;
    margin: 0 auto;
    padding: 30px;
}

.santen-auth-form .form-group {
    margin-bottom: 20px;
}

.santen-auth-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.santen-auth-form input[type="text"],
.santen-auth-form input[type="email"],
.santen-auth-form input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}

.santen-auth-form input:focus {
    border-color: #0073aa;
    outline: none;
    box-shadow: 0 0 0 2px rgba(0, 115, 170, 0.2);
}

.santen-auth-form small {
    display: block;
    margin-top: 5px;
    color: #666;
    font-size: 12px;
}

.santen-auth-form .btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #0073aa;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    width: 100%;
}

.santen-auth-form .btn:hover {
    background-color: #005a87;
}

.santen-auth-form .btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

.santen-auth-form .form-group-checkbox {
    display: flex;
    align-items: center;
}

.santen-auth-form .form-group-checkbox label {
    display: flex;
    align-items: center;
    font-weight: normal;
}

.santen-auth-form .form-group-checkbox input {
    width: auto;
    margin-right: 8px;
}

.santen-auth-form .auth-links {
    margin-top: 20px;
    text-align: center;
}

.santen-auth-form .auth-links a {
    color: #0073aa;
}

.santen-auth-form .auth-support {
    margin-top: 30px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 4px;
    font-size: 14px;
    color: #666;
}

.santen-auth-form .form-message {
    margin: 15px 0;
}

.santen-auth-form .alert {
    padding: 12px 15px;
    border-radius: 4px;
    margin-bottom: 15px;
}

.santen-auth-form .alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.santen-auth-form .alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.santen-auth-form .alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}