body {
    font-family: Arial, sans-serif;
    background: #f7f9fc;
    padding: 20px;
}

.checkout-container {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.plan-summary {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    width: 300px;
    position: relative;
}

.special-offer-badge {
    position: absolute;
    top: -12px;
    right: -12px;
    background: linear-gradient(45deg, #ff5722, #ff9800);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    animation: glowing 1.5s infinite;
}

@keyframes glowing {
    0% { box-shadow: 0 0 5px #ff9800; }
    50% { box-shadow: 0 0 15px #ff9800; }
    100% { box-shadow: 0 0 5px #ff9800; }
}

.price {
    font-size: 1.5rem;
    margin: 15px 0;
}
.old-price {
    text-decoration: line-through;
    color: red;
    margin-right: 8px;
}

.payment-methods {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    width: 350px;
}

.methods-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
}

.method-card {
    border: 2px solid #ddd;
    border-radius: 8px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    background: white;
    transition: all 0.3s ease;
}
.method-card img {
    max-width: 100px;
    margin-bottom: 10px;
}
.method-card:hover {
    border-color: #2196F3;
    box-shadow: 0 8px 20px rgba(33,150,243,0.2);
    transform: translateY(-5px);
}