html,
body,
#container {
    height: 100%;
    margin: 0;
    padding: 0;
    background: linear-gradient(0.25turn, #752525, #050505, #252575);
    color: #f3f3f3;
    font-family: sans-serif;
    margin-top: 15px;
}

#container {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-evenly;
}
#vis {
    width: 95vmin;
    height: 95vmin;
    overflow: visible;
}

.halo {
    opacity: 0;
}
.note {
    stroke-width: 0.5;
    stroke: #151515;
    fill: rgba(255, 255, 255, 1);
    opacity: 0.4;
}
.hover .note {
    opacity: 0.7;
}
.on .note {
    fill: #e91e63;
    opacity: 1;
}

.pointer-area {
    stroke: none;
    opacity: 0;
}

.controls {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
}
.control-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.controls button {
    width: 100%;
    min-width: 7vw;
    height: 4vh;
    margin: 2px;
    background: none;
    color: white;
    border: 1px solid white;
}
.controls button:hover {
    background: rgba(255, 255, 255, 0.5);
}
.controls button.active {
    background: white;
    color: black;
}

#output-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.output-control {
    padding: 10px;
}
.output-control label {
    padding: 0 5px;
    font-size: 14px;
}
#tempo-label {
    display: inline-block;
    width: 30px;
}
.midi-required {
    display: none;
}

#generating,
#loading {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;

    font-size: 32px;
}