body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: 'Tahoma', sans-serif;
}

.bg-image {
    background: url('background.jpg') no-repeat center center fixed;
    background-size: cover;
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 15px;
    max-width: 600px;
    width: 90%;
    text-align: center;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
}

header h1 {
    color: #2a7ae2;
    font-size: 28px;
}

.subtitle {
    color: #555;
    font-size: 18px;
}

.offer {
    margin: 20px 0;
}

.original-price {
    font-size: 16px;
    color: #999;
}

.discount-price span {
    color: #e60000;
    font-size: 26px;
    font-weight: bold;
}

.features ul {
    text-align: left;
    display: inline-block;
    padding: 0;
    list-style: none;
}

.features li {
    margin: 10px 0;
    font-size: 16px;
}

.cta button {
    padding: 14px 28px;
    font-size: 18px;
    background-color: #28a745;
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.cta button:hover {
    background-color: #218838;
}

footer {
    margin-top: 30px;
    font-size: 12px;
    color: #777;
}