body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
}

h1 {
    margin-bottom: 20px;
}

form {
    margin-bottom: 20px;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.grid-container {
    display: grid;
    grid-gap: 10px;
}

.circle {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s; /* Geçiş efekti */
}

.circle:hover {
    opacity: 0.8; /* Fare ile üzerine gelindiğinde hafif şeffaf yap */
}