*{
    box-sizing: border-box;
}
body{
    padding: 0;
    margin: 0;
}
section{
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.frame-container{
    display: flex;
    border: 4px solid black;
    width: 463px;
    height: 550px;
    align-items: center;
    justify-content: center;
}

.container{
    display:flex;
    flex-direction: column;
    width: 445px;
    height: 533px;
    border: 2px solid black;
    background-color: #EAEAFF;
    align-items: center;
    justify-content: center;
}
.author{
    font-size: 10px;
    text-align: right;
    width: 403px;
}

.display{
    display: flex;
    flex-direction: column;
    width: 403px;
    height: 91px;
    border: 2px solid black;
}
.display .upper, .display .lower{
    width: 100%;
    height: 45px;
    text-align: right;
    padding: 5px;
}

.display .lower{
    font-size: 28px;
}

.design{
    width: 403px;
    height: 20px;
    background-color: #8F8F8F;
    margin-bottom: 25px;
}

.key-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    width: 390px;
    height: 317px;
}

.key {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 70px;
    height: 55px;
    padding: 7px 24px;
    background-color: #f0f0f0;
    color: white;
    font-family: fantasy ;
    font-size: 26px;
    font-weight: 500;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

.key:hover {
    transform: scale(0.9);
    background-color: rgba(9, 36, 85, 0.41);
}

.key.long {
    grid-row: span 2;
    height: auto;
}

.light-red{
    background-color: #FF7373;
}
.light-blue{
    background-color: #69C1FF;
}
.light-gray{
    background-color: #787878;
}

.light-green{
    background-color: #58ef56;
}