body {
    font-family: Arial, sans-serif;
    margin: 20px;
}
.floors {
    margin-top: 20px;
}
.floor {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}
.quarter {
    border: 1px solid #333;
    padding: 5px;
    width: 80px;
    text-align: center;
    user-select: none;
}
.segment {
    width: 100%;
    padding: 10px 0;
    margin: 3px 0;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
}
.quarter-label {
    font-size: 14px;
    margin-top: 5px;
}
#loginBox, #logoutBox {
    margin-bottom: 20px;
}