/* Existing CSS styles */
body {
    background-color: #121212 !important;
    color: #e0e0e0 !important;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.login-container, .signup-container {
    background-color: #1f1f1f !important; 
    padding: 2rem;
    border-radius: 0.5rem; 
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.7);
    max-width: 400px; 
    width: 100%; 
    margin: auto; 
    color: #fff; 
    overflow: hidden; /* Ensure content doesn't overflow during transition */
    transition: max-height 0.75s ease, opacity 0.75s ease;
    opacity: 0;
    display: none; /* Hide by default */
}

.login-container.active, .signup-container.active {
    display: block; /* Show active container */
    opacity: 1; /* Ensure opacity is fully visible */
}

.login-container {
    z-index: 2;
}

.signup-container {
    z-index: 1;
}

.form-label {
    color: #e0e0e0 !important;
}

.form-control {
    background-color: #333 !important; 
    color: #e0e0e0 !important; 
    border: 1px solid #444 !important; 
    border-radius: 0.25rem;
}

.form-control::placeholder {
    color: #bbb !important; 
}

.form-control:focus {
    border-color: #007bff !important; 
    background-color: #333 !important; 
    color: #e0e0e0 !important;
    box-shadow: 0 0 0.25rem rgba(0, 123, 255, 0.5); 
}

.btn-primary {
    background-color: #007bff !important;
    border-color: #007bff !important; 
    color: #fff !important; 
    border-radius: 0.25rem;
}

.btn-primary:hover {
    background-color: #0056b3 !important; 
    border-color: #004080 !important; 
}

.text-danger {
    font-size: 0.875rem; 
}

/* Initial max-height and opacity states for transition */
.container > .inactive {
    max-height: 0;
    opacity: 0;
}

.container > .active {
    max-height: 1000px; /* Set to a height large enough to accommodate the content */
}