.section-pattern {
  --accent: var(--lime);
}

.section-tracker {
  --accent: var(--cyan);
}

.section-tracker.learning {
  --accent: var(--lime);
}

.section-drums {
  --accent: var(--amber);
}

.section-keyboard {
  --accent: #9ba7ff;
}

.tracker,
.drums {
  margin-top: 12px;
}

.section-head {
  align-items: center;
  margin: -1px -1px 8px;
  padding: 5px 7px;
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--line));
  background: var(--tracker-cell);
}

.section-head h2 {
  line-height: 1.1;
}

.section-head .eyebrow {
  margin-bottom: 3px;
}

.section-tracker .section-head {
  display: grid;
  grid-template-columns: minmax(190px, auto) minmax(0, 1fr);
  align-items: flex-start;
}

.tracker-toolbar {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 4px;
  max-width: 100%;
}

.tracker-tool-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 3px;
  min-height: 30px;
  padding: 3px;
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--line));
  border-radius: 0;
  background: rgba(17, 19, 26, 0.72);
}

.tracker-tool-group-main {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
}

.tracker-tool-transport {
  --group-color: var(--cyan);
}

.tracker-tool-quantize {
  --group-color: var(--amber);
}

.tracker-tool-pattern,
.tracker-tool-buffer {
  --group-color: var(--lime);
}

.tracker-tool-edit {
  --group-color: var(--pink);
}

.tracker-tool-transpose {
  --group-color: #9d8cff;
}

.tracker-tool-group[class*="tracker-tool-"] {
  border-color: color-mix(in srgb, var(--group-color) 34%, var(--line));
  background: color-mix(in srgb, rgba(17, 19, 26, 0.82) 86%, var(--group-color) 14%);
}

.tracker-tool-group[class*="tracker-tool-"] .ghost-button {
  border-color: color-mix(in srgb, var(--group-color) 30%, var(--line));
  background-color: color-mix(in srgb, #11131a 90%, var(--group-color) 10%);
}

.tracker-tool-group[class*="tracker-tool-"] .ghost-button:hover,
.tracker-tool-group[class*="tracker-tool-"] .ghost-button:focus-visible,
.tracker-tool-group[class*="tracker-tool-"] .ghost-button.active {
  border-color: color-mix(in srgb, var(--group-color) 62%, var(--line));
  color: var(--group-color);
}

.tracker-tool-group[class*="tracker-tool-"]:focus-within {
  border-color: color-mix(in srgb, var(--group-color) 64%, var(--line));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--group-color) 34%, transparent);
}

.tracker-tool-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0 5px;
  border-right: 1px solid color-mix(in srgb, var(--group-color, var(--accent)) 28%, transparent);
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  text-transform: uppercase;
}

.tracker-toolbar .ghost-button,
.tracker-toolbar .tracker-step-value {
  min-height: 24px;
  padding: 0 6px;
  font-size: 0.62rem;
}

.tracker-toolbar .ghost-button {
  min-width: 28px;
  line-height: 1;
  white-space: nowrap;
}

.tracker-play-button {
  border-color: rgba(185, 244, 91, 0.58);
  color: var(--lime);
}

.tracker-play-button.playing {
  border-color: rgba(255, 92, 157, 0.72);
  color: #101015;
  background: var(--pink);
}

.tracker-step-presets {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.tracker-toolbar .tracker-step-preset {
  min-width: 27px;
  padding: 0 6px;
}

.tracker-step-preset.active {
  border-color: rgba(255, 200, 87, 0.78);
  color: #101015;
  background: var(--amber);
}

.tracker-step-preset:focus-visible {
  outline: 1px solid color-mix(in srgb, var(--amber) 72%, transparent);
  outline-offset: 1px;
}

.tracker-toolbar .tracker-help-button {
  min-width: 28px;
  padding: 0;
}

.tracker-instrument-panel {
  margin: 0 0 12px;
}

.tracker-instrument-panel .module-rack {
  border-color: color-mix(in srgb, var(--cyan) 30%, var(--line));
}

.instrument-source-row {
  display: flex;
  align-items: end;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 7px;
}

.instrument-source-row .ghost-button {
  min-height: 28px;
  padding-inline: 8px;
}

.instrument-preset-field {
  min-width: min(260px, 100%);
  flex: 1 1 220px;
  margin: 0;
}

.steps {
  display: grid;
  grid-template-columns: repeat(16, minmax(34px, 1fr));
  gap: 7px;
}

.step {
  display: grid;
  grid-template-rows: 28px 72px 34px;
  gap: 7px;
}

.step button,
.step select {
  border-radius: 7px;
}

.step-toggle {
  border: 1px solid var(--line);
  color: var(--muted);
  background: #12141b;
  font-size: 0.75rem;
  font-weight: 800;
}

.step-toggle.on {
  border-color: rgba(185, 244, 91, 0.55);
  color: #0b1108;
  background: var(--lime);
}

.step-toggle.current {
  box-shadow: 0 0 0 2px var(--pink);
}

.step-slider {
  writing-mode: bt-lr;
  appearance: slider-vertical;
  width: 100%;
  height: 72px;
  accent-color: var(--pink);
}

.tracker-head,
.tracker-row {
  display: grid;
  grid-template-columns: 44px repeat(var(--tracker-channel-count, 4), minmax(176px, 1fr));
  gap: 4px;
  align-items: center;
}

.tracker-grid-shell {
  position: relative;
}

.tracker-grid-viewport {
  --tracker-visible-rows: 24;
  --tracker-row-step: 32px;
  height: calc((var(--tracker-visible-rows) * var(--tracker-row-step)) + 58px);
  max-height: calc(100vh - 250px);
  overflow: auto;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(14, 16, 22, 0.98), rgba(15, 16, 22, 0.94));
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--cyan) 42%, #11131a) rgba(17, 19, 26, 0.55);
}

.tracker-guide {
  position: absolute;
  left: 5px;
  right: 5px;
  pointer-events: none;
  display: none;
  border-radius: 4px;
  border: 1px solid transparent;
  outline: 1px solid rgba(255, 255, 255, 0.02);
}

.tracker-cursor-guide {
  z-index: 4;
  background: linear-gradient(
    to right,
    rgba(56, 216, 233, 0.01) 0%,
    rgba(56, 216, 233, 0.22) 5%,
    rgba(56, 216, 233, 0.22) 95%,
    rgba(56, 216, 233, 0.01) 100%
  );
  border-color: #38d8e9;
  box-shadow: inset 0 0 0 1px rgba(56, 216, 233, 0.34), 0 0 0 1px rgba(6, 8, 12, 0.65);
  border-top-width: 2px;
  border-bottom-width: 2px;
}

.tracker-playhead {
  z-index: 8;
  background: linear-gradient(
    to right,
    rgba(220, 220, 220, 0.02) 0%,
    rgba(220, 220, 220, 0.26) 5%,
    rgba(220, 220, 220, 0.26) 95%,
    rgba(220, 220, 220, 0.02) 100%
  );
  border-color: #d7d9e1;
  box-shadow: inset 0 0 0 1px rgba(220, 220, 220, 0.34), 0 0 0 1px rgba(6, 8, 12, 0.65);
  border-top-width: 2px;
  border-bottom-width: 2px;
}

.tracker-head {
  position: sticky;
  top: 0;
  z-index: 3;
  min-width: max-content;
  margin-bottom: 0;
  padding: 5px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  text-transform: uppercase;
  background: rgba(18, 20, 28, 0.98);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.26);
}

.tracker-row-head-label {
  display: grid;
  place-items: center;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  background: #11131a;
  font-variant-numeric: tabular-nums;
}

.tracker-channel-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px 28px;
  grid-template-areas:
    "name mute solo"
    "cols cols cols";
  gap: 4px;
  align-items: center;
  min-width: 0;
}

.tracker-channel-name {
  grid-area: name;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tracker-channel-toggle:first-of-type {
  grid-area: mute;
}

.tracker-channel-toggle:last-of-type {
  grid-area: solo;
}

.tracker-channel-columns {
  grid-area: cols;
  display: grid;
  grid-template-columns: minmax(58px, 1fr) 32px 38px 46px;
  gap: 2px;
  color: color-mix(in srgb, var(--muted) 76%, transparent);
  font-size: 0.58rem;
}

.tracker-channel-columns span {
  display: grid;
  place-items: center;
  min-height: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  font-variant-numeric: tabular-nums;
}

.tracker-channel-head.muted > span {
  color: rgba(169, 168, 181, 0.58);
}

.tracker-channel-head.active-channel {
  color: var(--cyan);
}

.tracker-channel-head.active-channel .tracker-channel-name {
  color: var(--cyan);
}

.tracker-channel-toggle {
  min-width: 0;
  min-height: 26px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: #11131a;
  font-size: 0.68rem;
  font-weight: 900;
  cursor: pointer;
}

.tracker-channel-toggle:hover,
.tracker-channel-toggle:focus-visible {
  border-color: rgba(255, 200, 87, 0.58);
  color: var(--amber);
  outline: 1px solid rgba(255, 200, 87, 0.24);
  outline-offset: 1px;
}

.tracker-channel-toggle.active {
  border-color: rgba(56, 216, 233, 0.65);
  color: var(--cyan);
  background: rgba(56, 216, 233, 0.12);
}

.tracker-rows {
  display: grid;
  gap: 3px;
  min-width: max-content;
  padding: 5px;
}

.tracker-row {
  min-height: 29px;
  background: transparent;
  scroll-margin-top: 54px;
}

.tracker-row:nth-child(even) input,
.tracker-row:nth-child(even) select,
.tracker-row:nth-child(even) > span {
  background-color: #0f1117;
}

.tracker-row.bar-row > span {
  color: var(--pink);
  border-color: rgba(255, 92, 157, 0.42);
}

.tracker-row.bar-row input,
.tracker-row.bar-row select,
.tracker-row.bar-row > span {
  border-top-color: rgba(255, 92, 157, 0.54);
  background-color: color-mix(in srgb, #11131a 86%, var(--pink) 14%);
}

.tracker-row.beat-row:not(.bar-row) > span {
  color: var(--lime);
  border-color: rgba(185, 244, 91, 0.28);
}

.tracker-row.beat-row:not(.bar-row) input,
.tracker-row.beat-row:not(.bar-row) select,
.tracker-row.beat-row:not(.bar-row) > span {
  border-top-color: rgba(185, 244, 91, 0.35);
  background-color: color-mix(in srgb, #11131a 90%, var(--lime) 10%);
}

.tracker-row.edit-step-row:not(.cursor-row):not(.current) input,
.tracker-row.edit-step-row:not(.cursor-row):not(.current) select,
.tracker-row.edit-step-row:not(.cursor-row):not(.current) > span {
  border-left-color: rgba(255, 200, 87, 0.44);
  background-color: color-mix(in srgb, #11131a 91%, var(--amber) 9%);
}

.tracker-row.next-step-row:not(.cursor-row):not(.current) input,
.tracker-row.next-step-row:not(.cursor-row):not(.current) select,
.tracker-row.next-step-row:not(.cursor-row):not(.current) > span {
  border-color: rgba(56, 216, 233, 0.42);
}

.tracker-row > span {
  display: grid;
  place-items: center;
  height: 29px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--amber);
  background: #11131a;
  font-size: 0.72rem;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
}

.tracker-channel-cell {
  display: grid;
  grid-template-columns: minmax(58px, 1fr) 32px 38px 46px;
  gap: 2px;
  align-items: center;
  min-width: 0;
}

.tracker-channel-cell.cursor input,
.tracker-channel-cell.cursor select {
  border-color: rgba(56, 216, 233, 0.54);
  box-shadow: none;
}

.tracker-channel-cell.selected input,
.tracker-channel-cell.selected select {
  border-color: rgba(185, 244, 91, 0.5);
  background-color: color-mix(in srgb, #11131a 84%, var(--lime) 16%);
}

.tracker-channel-cell.selected.cursor input,
.tracker-channel-cell.selected.cursor select {
  border-color: rgba(56, 216, 233, 0.76);
  box-shadow: none;
}

.tracker-channel-cell.active-channel:not(.cursor):not(.selected) input,
.tracker-channel-cell.active-channel:not(.cursor):not(.selected) select {
  border-color: rgba(56, 216, 233, 0.22);
  background-color: color-mix(in srgb, #11131a 90%, var(--cyan) 10%);
}

.tracker-row input,
.tracker-row select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 29px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  background-color: #11131a;
  padding: 0 5px;
  font-family: var(--tracker-font);
  font-size: 0.76rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
  text-transform: uppercase;
  outline: 0;
  overflow: hidden;
  text-overflow: clip;
}

.tracker-row input {
  caret-color: var(--amber);
}

.tracker-row input:focus-visible,
.tracker-row select:focus-visible {
  border-color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(56, 216, 233, 0.38);
}

.tracker-row input[readonly] {
  cursor: default;
  caret-color: transparent;
}

.tracker-row select {
  appearance: none;
  padding: 0 12px 0 5px;
  background:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%) calc(100% - 8px) 50% / 5px 5px no-repeat,
    #11131a;
  cursor: pointer;
}

.tracker-row.cursor-row input,
.tracker-row.cursor-row select,
.tracker-row.cursor-row span,
.tracker-row.current input,
.tracker-row.current select,
.tracker-row.current span {
  border-color: rgba(169, 168, 181, 0.68);
  background-color: rgba(169, 168, 181, 0.18);
  box-shadow: none;
}

.tracker-row.cursor-row > span {
  color: var(--text);
}

.tracker-row.current input,
.tracker-row.current select,
.tracker-row.current span {
  border-color: rgba(255, 255, 255, 0.7);
  color: #050706;
  background-color: rgba(211, 213, 220, 0.86);
  box-shadow: inset 0 0 0 1px rgba(5, 7, 6, 0.42);
}

.tracker-row.cursor-row .tracker-cell-field.cursor-field {
  border-color: var(--cyan);
  color: #071011;
  background: var(--cyan);
  box-shadow: inset 0 0 0 1px #071011;
}

.tracker-row.current .tracker-cell-field.cursor-field {
  border-color: var(--amber);
  color: #050706;
  background: var(--amber);
}

.tracker-row .tracker-cell-field.edit-position {
  background-image: linear-gradient(90deg, var(--amber), var(--amber));
  background-repeat: no-repeat;
  background-size: calc(100% / var(--field-chars, 2)) 3px;
  background-position: var(--field-pos-percent, 0%) 100%;
}

.tracker-row .tracker-cell-field.invalid-input {
  border-color: var(--pink);
  color: var(--pink);
  background-color: rgba(255, 92, 157, 0.14);
  box-shadow: inset 0 0 0 1px rgba(255, 92, 157, 0.22);
}

.tracker-row .tracker-cell-field::selection {
  color: #071011;
  background: var(--amber);
}

.tracker-status-cell.warning {
  border-color: rgba(255, 92, 157, 0.68);
  color: var(--pink);
}

.tracker-cell-field::selection {
  color: #050706;
  background: var(--amber);
}

.tracker-row.cursor-row .tracker-channel-cell.selected .tracker-cell-field.cursor-field {
  border-color: var(--amber);
  color: #101015;
  background: var(--amber);
  box-shadow: inset 0 0 0 1px #101015;
}

.tracker-cell-field:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: -2px;
}

.tracker-cell-note {
  color: var(--lime);
}

.tracker-cell-instrument,
.tracker-cell-volume {
  color: var(--cyan);
}

.tracker-cell-effect {
  color: var(--amber);
}

@media (max-width: 980px) {
  .steps {
    grid-template-columns: repeat(8, minmax(34px, 1fr));
  }
}

@media (max-width: 680px) {
  .steps {
    grid-template-columns: repeat(4, minmax(42px, 1fr));
  }

  .tracker-head,
  .tracker-row {
    grid-template-columns: 42px repeat(var(--tracker-channel-count, 4), minmax(196px, 1fr));
  }

  .tracker-grid-viewport {
    --tracker-visible-rows: 18;
    max-height: calc(100vh - 210px);
  }

  .tracker-channel-cell {
    grid-template-columns: minmax(62px, 1fr) 38px 46px 56px;
  }

  .tracker-row input,
  .tracker-row select {
    padding: 0 6px;
  }
}

@media (max-width: 420px) {
  .tracker-channel-cell {
    grid-template-columns: minmax(58px, 1fr) 34px 42px 50px;
  }
}