body {
    background-color: #1a1a1a;
    color: #ffffff;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.container {
    background-color: #000000;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    width: 90%;
    max-width: 600px;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.progress-bar {
    width: 100%;
    background-color: #333333;
    border-radius: 5px;
    height: 10px;
    margin-bottom: 20px;
}

.progress {
    height: 100%;
    background-color: #4CAF50;
    border-radius: 5px;
}

p {
    font-size: 1.1em;
    margin-bottom: 30px;
}

.highlight {
    color: #FFD700;
}

.images {
    display: flex;
    justify-content: space-around;
    margin-bottom: 30px;
}

.images img {
    width: 30%;
    border-radius: 5px;
}

h2 {
    font-size: 1.8em;
    margin-bottom: 20px;
}

input[type="number"],
input[type="text"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #555555;
    border-radius: 5px;
    background-color: #333333;
    color: #ffffff;
    font-size: 1.1em;
    text-align: center;
}

button {
    background-color: #4CAF50;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 5px;
    font-size: 1.2em;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #45a049;
}

.result-text {
    font-size: 1.5em;
    margin-bottom: 30px;
}

.result-text .highlight {
    color: #FFD700;
}

.main-product-button {
    background-color: #28a745;
    margin-top: 30px;
}

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