.payment-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 500px;
    z-index: 1000;
}

.payment-modal::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.payment-modal h3 {
    color: #161223;
    margin-bottom: 1.5rem;
    font-family: 'Poppins', sans-serif;
}

.payment-modal p {
    font-size: 1.2rem;
    color: #7dc22b;
    font-weight: 600;
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #161223;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: #7dc22b;
    box-shadow: 0 0 0 2px rgba(125, 194, 43, 0.2);
}

#payment-form button {
    background: #7dc22b;
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    width: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
}

#payment-form button:hover {
    background: #6aa824;
    transform: translateY(-2px);
}