#synth {
    --accent: var(--accent-color);
    --line: #8fbeb755;
    --panel: #29bb8511;
    max-width: 1150px;
    margin: 24px auto 48px;
    color: #224c43
}

.theme-dark #synth {
    color: #158d74;
}

#synth * {
    box-sizing: border-box;
    transition: var(--transition-time-common);
}

h1 small {
    font-size: .4em;
    opacity: .6
}

#synth h2 {
    color: var(--text-color);
    font-size: 18px;
    margin: 0 0 18px
}

#synth h2 small {
    font-size: 10px;
    letter-spacing: 2px;
    opacity: .6
}

#synth button,
#synth select {
    font: inherit;
    border: 1px solid var(--line);
    background: white;
    color: #22584c;
    padding: 9px 13px
}

#synth button {
    cursor: pointer
}

#synth button:hover {
    background: #d2eee2
}

#synth :focus-visible {
    outline: 3px solid #2dbba0;
    outline-offset: 3px
}

#synth #power {
    background: var(--accent);
    color: white
}

#synth label {
    display: grid;
    gap: 8px;
    font-size: 13px
}

#synth input[type=range] {
    width: 100%;
    accent-color: var(--accent)
}

#synth output {
    font-size: 12px;
    opacity: .7;
    font-variant-numeric: tabular-nums
}

.toolbar {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px
}

.toolbar #status,
.toolbar>div {
    flex: 1
}

.toolbar #status {
    font-size: 13px;
    min-width: 170px
}

.toolbar h2 {
    margin: 0 !important
}

.oscillators {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px
}

.panel {
    padding: 22px;
    border: 1px solid var(--line);
    background: var(--panel);
    margin-bottom: 16px
}

.controls {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px
}

.sound-controls {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 16px
}

#envelope {
    grid-template-columns: repeat(4, minmax(0, 1fr))
}

#synth p {
    font-size: 13px;
    line-height: 1.7;
    opacity: .75
}

.keyboard-scroll {
    overflow-x: auto;
    padding: 4px 3px 10px
}

#keyboard {
    height: 180px;
    min-width: 650px;
    position: relative;
    user-select: none;
    touch-action: none
}

#synth .key {
    position: absolute;
    top: 0;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-direction: column;
    gap: 5px;
    font-size: 12px;
    padding-bottom: 12px;
    touch-action: none;
    transition-duration: 0s;
}

#synth .white {
    background: #fff;
    z-index: 1;
    border-color: #aec7bb
}

#synth .black {
    background: #25493f;
    color: #d5eee1;
    height: 62%;
    z-index: 2
}

#synth .key.active {
    background: #3cb69a;
    color: white;
    box-shadow: inset 0 0 0 2px #158d74
}

.key small {
    font-size: 10px;
    opacity: .6
}

.note {
    text-align: center
}

#devices {
    max-width: 260px
}

.keyboard-overview {
    margin: 18px 0 0;
    width: 100%;
    display: block;
    max-width: unset;
}

#keyboard-overview {
    display: block;
    width: 100%;
    height: 112px;
    pointer-events: none;
}

.keyboard-overview figcaption {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 20px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-color);
}

.overview-range::before,
.overview-active::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-right: 6px;
    background: #b8dfe9;
    border: 1px solid #428ba3;
}

.overview-active::before {
    background: #3cb69a;
    border-color: #158d74;
}

#synth button:disabled {
    cursor: default;
    opacity: .5;
}

#synth #keyboard[aria-disabled="true"] .key {
    cursor: default;
}

.midi-player input[type=file] {
    max-width: 100%;
    font: inherit;
}

#file-progress {
    display: block;
    width: 100%;
    height: 8px;
    accent-color: var(--accent);
}

#file-time {
    white-space: nowrap;
}

#file-status {
    overflow-wrap: anywhere;
}

@media(max-width:760px) {

    .oscillators,
    .sound-controls {
        grid-template-columns: 1fr
    }

    #envelope {
        grid-template-columns: repeat(2, minmax(0, 1fr))
    }

    .panel {
        padding: 18px
    }

    h1 small {
        display: block
    }
}