.payment-main {
    padding-top: 20px;
}

.payment-section {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.payment-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    animation: slideUp 0.5s ease-out;
}

.payment-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.form-row .form-group {
    flex: 1;
}

.payment-features {
    margin-top: 4rem;
    text-align: center;
}

.payment-features h2 {
    margin-bottom: 2rem;
    color: var(--dark-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: fadeIn 0.5s ease-out;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.feature-card img {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

.feature-card h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.feature-card p {
    color: #666;
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .payment-section {
        padding: 1rem;
    }

    .form-row {
        flex-direction: column;
        gap: 1.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* Card Number Formatting */
#card-number {
    letter-spacing: 1px;
    font-family: monospace;
}

/* Input Focus Effects */
.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(46, 204, 113, 0.2);
}

/* Submit Button Animation */
.submit-btn {
    position: relative;
    overflow: hidden;
}

.submit-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.submit-btn:hover::after {
    width: 300px;
    height: 300px;
}