* { 
    margin: 0; 
    box-sizing: border-box;
    font-family: sans-serif;
}

/* Page */
body {
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}
main {
    flex: 1;
    flex-direction: column;
    display: flex;
}
#three {
    flex: 1;
    width: 100%;
    max-height: calc(85dvh - 30px)
}
#numbers {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 90px;
    background-color: silver;
    color: black;
    padding: 2px;
    font-size: 10px;
}
span.nh {
    display: inline-block;
    width: 50px;
}
#graphs {
    display: flex;
    flex-direction: row;
    height: 15dvh;
}
.graph {
    flex: 1;
}

/* Footer strip */
footer {
    height: 30px;
    background-color: silver;
}

/* Radio buttons */
.input-container {
    display: inline-flex;
    margin: 3px;
    margin-left: 6px;
}

input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

input:checked + span {
    color: white;
    background-color: darkcyan;
}

span.radio {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 24px;
    border: 1px solid darkgrey;
    border-right: 0;
    background-color: lightgray;
    cursor: pointer;
    font-size: 12px;
    user-select: none;
}

label:last-of-type span {
    border-right: 1px solid darkgrey;
}

#timestamp {
    float: right;
    margin: 4px;
}