.login-container {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.modal-overlay {
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    transform: translateY(-100vh);
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.modal-overlay.active .modal-content {
    transform: translateY(0);
}