header {
    background-color: #333;
    padding: 20px;
    text-align: center;
    position: fixed;
    width: 100%;
}

header:hover {
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform: scale(1.1);
    opacity: 1;
}

nav ul {
    list-style-type: none;
    margin: 10px 0;
    padding: 0;
}

nav ul li {
    display: inline-block;
    margin: 0 10px;
}

nav ul li a {
    text-decoration: none;
    color: #fff;
}

body {
    font-family: 'Helvetica', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.purchase-container {
    width: 450px;
    padding: 40px;
    background-color: #ffffff;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    font-size: 36px;
    color: #333333;
    margin-bottom: 20px;
}

p {
    font-size: 18px;
    color: #555555;
    margin-bottom: 15px;
}

.order-details {
    margin-top: 30px;
    background-color: #f8f8f8;
    padding: 20px;
    border-radius: 8px;
}

h2 {
    font-size: 24px;
    color: #333333;
    margin-bottom: 10px;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

li {
    font-size: 18px;
    color: #555555;
    margin-bottom: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #ff4c5a;
    color: #ffffff;
    font-size: 18px;
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #ff6579;
}