body {
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
    font-family: Arial, sans-serif;
}

.pattern {
    position: relative;
}

.semi-circle {
    width: 150px;
    height: 75px;
    background: radial-gradient(circle, #ff6f61, #ffb88c);
    border-radius: 150px 150px 0 0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.semi-circle:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
}