body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #ffffff;
    color: #ffffff;
}

header {
    background-color: #4CAF50;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
}

main {
    padding: 2rem;
}

.pose-gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}

.pose-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.pose-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    transition: transform 0.3s ease;
    flex: 1 0 21%; 
}

.pose-image:hover {
    transform: scale(1.05);
}

.start-section {
    text-align: center;
    margin-top: 2rem;
}

.start-button {
    background-color: #007acc;
    color: #fff;
    border: none;
    border-radius: 25px;
    padding: 1rem 2rem;
    font-size: 1.5rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.start-button:hover {
    background-color: #005f8a;
}