:root {
  --bg: #0b0c10;
  --panel: rgba(16, 18, 24, 0.78);
  --surface: #171a22;
  --surface-2: #1e222c;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e9e7e0;
  --muted: #868c99;
  --muted-2: #5c6373;
  --amber: #f5a623;
  --amber-hi: #ffc65a;
  --hot: #ff4d3d;
  --cyan: #57d1e3;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --panel-w: 328px;
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  overflow: hidden;
}
#gl {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
  touch-action: none;
}
#gl.dragging {
  cursor: grabbing;
}

/* ---- top bar ---- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  z-index: 20;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.45), rgba(0, 0, 0, 0));
}
.brand {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  pointer-events: auto;
  user-select: none;
}
.brand b {
  color: var(--text);
  font-weight: 600;
}
.topbar .actions {
  display: flex;
  gap: 8px;
  pointer-events: auto;
}
.ghost {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(20, 22, 28, 0.6);
  border: 1px solid var(--line);
  padding: 7px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.15s;
  backdrop-filter: blur(8px);
}
.ghost:hover {
  color: var(--text);
  border-color: var(--line-strong);
}
.ghost:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---- panel ---- */
#panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: var(--panel-w);
  z-index: 15;
  background: var(--panel);
  backdrop-filter: blur(18px) saturate(1.1);
  border-left: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  overflow-x: hidden;
}
#panel::-webkit-scrollbar {
  width: 8px;
}
#panel::-webkit-scrollbar-thumb {
  background: var(--surface-2);
  border-radius: 4px;
}
#app.collapsed #panel {
  transform: translateX(100%);
}

.panel-handle {
  position: fixed;
  top: 50%;
  right: var(--panel-w);
  transform: translateY(-50%);
  z-index: 16;
  width: 22px;
  height: 64px;
  border: 1px solid var(--line);
  border-right: none;
  border-radius: 8px 0 0 8px;
  background: var(--panel);
  backdrop-filter: blur(18px);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    right 0.32s cubic-bezier(0.4, 0, 0.2, 1),
    color 0.15s;
}
.panel-handle:hover {
  color: var(--text);
}
.panel-handle:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
#app.collapsed .panel-handle {
  right: 0;
}
.panel-handle svg {
  transition: transform 0.32s;
}
#app.collapsed .panel-handle svg {
  transform: rotate(180deg);
}

.grp {
  padding: 20px 20px;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 14px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ---- preset list ---- */
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.preset {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 10px;
  cursor: pointer;
  position: relative;
  border: 1px solid transparent;
  transition: 0.14s;
  margin-bottom: 4px;
}
.preset:hover {
  background: var(--surface);
}
.preset .idx {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted-2);
  width: 16px;
  flex: none;
}
.preset .meta {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.preset .name {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.2;
}
.preset .desc {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  letter-spacing: 0.02em;
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.preset.active {
  background: var(--surface);
  border-color: var(--line-strong);
}
.preset.active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 2px;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}
.preset.active .name {
  color: var(--amber-hi);
}
.preset:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---- segmented source toggle ---- */
.seg {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 3px;
  margin-bottom: 16px;
}
.seg button {
  flex: 1;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: none;
  padding: 8px;
  border-radius: 7px;
  cursor: pointer;
  transition: 0.14s;
}
.seg button.on {
  background: var(--surface-2);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}
.seg button:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 1px;
}

/* ---- file drop ---- */
.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 12px;
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  cursor: pointer;
  text-align: center;
  color: var(--muted);
  transition: 0.14s;
  margin-bottom: 14px;
}
.drop:hover,
.drop.over {
  border-color: var(--cyan);
  color: var(--text);
  background: rgba(87, 209, 227, 0.05);
}
.drop .big {
  font-size: 13px;
  color: var(--text);
}
.drop .sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}
.drop input {
  display: none;
}
.nowplaying {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--cyan);
  margin: -6px 0 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ---- transport ---- */
.transport {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.tp-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.playbtn {
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.14s;
}
.playbtn:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.playbtn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  min-width: 80px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--surface-2);
  cursor: pointer;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 6px rgba(245, 166, 35, 0.5);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border: none;
  border-radius: 50%;
  background: var(--amber);
  cursor: pointer;
}
input[type="range"]:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.knob-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.knob-row > span:first-child {
  flex: none;
  min-width: 42px;
}

.knob-row .kv {
  flex: none;
  min-width: 42px;
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

textarea#textInput {
  width: 100%;
  resize: vertical;
  min-height: 56px;
  padding: 10px 11px;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-family: var(--sans);
  font-size: 12px;
  line-height: 1.45;
  outline: none;
}
textarea#textInput::placeholder {
  color: var(--muted-2);
}
textarea#textInput:focus {
  border-color: var(--amber);
}
select#textFont {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 26px;
  padding: 0 26px 0 9px;
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  background: var(--surface)
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='8' height='5'><path d='M0 0l4 5 4-5z' fill='%23868c99'/></svg>")
    no-repeat right 9px center;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
  outline: none;
}
select#textFont:hover {
  border-color: var(--amber);
}
select#textFont:focus-visible,
textarea#textInput:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.micbtn {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: 0.14s;
}
.micbtn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.micbtn.live {
  border-color: var(--hot);
  color: var(--hot);
}
.micbtn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.hint {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  line-height: 1.5;
  margin-top: 10px;
}

/* ---- meters ---- */
.meters {
  margin-top: 4px;
}
.meter-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.meter-head .lab {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.meter-head .val {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber-hi);
  font-variant-numeric: tabular-nums;
}
.vu {
  position: relative;
  height: 10px;
  border-radius: 5px;
  background: var(--surface-2);
  overflow: hidden;
  border: 1px solid var(--line);
}
.vu .fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0%;
  background: linear-gradient(90deg, #4caf50, #f5a623 72%, #ff4d3d);
  transition: width 0.05s linear;
}
.vu .peak {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--text);
  opacity: 0.8;
}
.bands {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}
.band {
  flex: 1;
  text-align: center;
}
.band .track {
  height: 44px;
  border-radius: 5px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}
.band .bfill {
  width: 100%;
  background: linear-gradient(to top, var(--cyan), rgba(87, 209, 227, 0.15));
  height: 0%;
}
.band.low .bfill {
  background: linear-gradient(to top, #f5a623, rgba(245, 166, 35, 0.15));
}
.band.high .bfill {
  background: linear-gradient(to top, #b07cff, rgba(176, 124, 255, 0.15));
}
.band .blab {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--muted-2);
  margin-top: 6px;
}
.beatring {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}
.beatring .dot {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  flex: none;
  border: 2px solid var(--line-strong);
  position: relative;
  transition: border-color 0.05s;
}
.beatring .dot::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: var(--hot);
  transform: scale(0);
  transition: transform 0.04s;
}
.beatring .btxt {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  letter-spacing: 0.06em;
  line-height: 1.4;
}
.beatring .bpm {
  color: var(--text);
}

.footnote {
  padding: 16px 20px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted-2);
  line-height: 1.6;
}
.zoomrow {
  display: flex;
  align-items: center;
  gap: 8px;
}
.zbtn {
  width: 36px;
  height: 36px;
  flex: none;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  transition: 0.14s;
}
.zbtn:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.zval {
  flex: 1;
  text-align: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.zreset {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  height: 36px;
  cursor: pointer;
  transition: 0.14s;
}
.zreset:hover {
  color: var(--text);
  border-color: var(--line-strong);
}
.zbtn:focus-visible,
.zreset:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
kbd {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 9px;
  color: var(--muted);
}