.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(20px);
    opacity: 0;
    transition: all var(--transition-normal);
}

.modal.active .modal-content {
    transform: translateY(0);
    opacity: 1;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-color);
    transform: rotate(90deg);
}

/* Login Form */
.login-form {
    margin-top: 1rem;
}

/* Checkout Form */
.checkout-form {
    margin-top: 1rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

/* Admin Panel Modal */
.admin-modal .modal-content {
    max-width: 800px;
}