body {
    font-family: Arial, sans-serif;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
    overflow-y: auto;
}

.keyboard {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 100%;
    max-width: 1000px;
    margin-top: 20px;
}

.row {
    display: flex;
    gap: 5px;
    justify-content: center;
}

.key {
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
    cursor: pointer;
    user-select: none;
}

.key.wide {
    width: 80px;
}

.key.extra-wide {
    width: 120px;
}

.key.extra-extra-wide {
    width: 300px;
}

.key.spacer {
    width: 30px;
    background-color: transparent;
    border: none;
    cursor: default;
}

.key.active {
    background-color: #4CAF50;
    color: white;
}

#reset {
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #f44336;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

#reset:hover {
    background-color: #d32f2f;
}