:root {
  --bg: #0b0f14;
  --panel: #121821;
  --accent: #00f0ff;
  --text: #e6faff;
  --muted: #6c7a89;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: monospace;
  outline:0 none;
  -webkit-touch-callout:none;
  -webkit-user-select:none;
  -moz-user-select:none;
  user-select:none
}

body {
  background: var(--bg);
  color: var(--text);
}

/* HEADER */
.header {
  width: 100%;
  padding: 16px;
  background: var(--panel);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #1f2a36;
  position: sticky;
  top: 0;
  z-index: 1000;
}

/* LEFT SECTION (BPM + BARS side by side) */
.left-controls {
  display: flex;
  gap: 16px;
}

/* CONTROL BLOCK */
.control-block {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #0f141c;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #1f2a36;
  min-width: 120px;
}

.control-label {
  font-size: 12px;
  color: var(--muted);
}

.control-value {
  font-size: 20px;
  min-width: 40px;
  text-align: center;
}

.arrow-buttons {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.arrow-btn {
  width: 28px;
  height: 20px;
  border: none;
  background: #0c1118;
  color: var(--accent);
  border-radius: 4px;
  font-size: 12px;
  cursor: pointer;
}

.arrow-btn:active {
  background: var(--accent);
  color: black;
}

/* ACTION BUTTONS */
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.btn {
  padding: 10px 13px;
  border-radius: 10px;
  border: 1px solid var(--accent);
  background: #0c1118;
  color: var(--accent);
  font-size: 11px;
  cursor: pointer;
  transition: 0.15s ease;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.2);
}

.btn:active {
  background: var(--accent);
  color: black;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.8);
}

.btn.play {
  border-color: #00ff88;
  color: #00ff88;
  box-shadow: 0 0 8px rgba(0, 255, 136, 0.3);
}

.btn.stop {
  border-color: #ff4d4d;
  color: #ff4d4d;
  box-shadow: 0 0 8px rgba(255, 77, 77, 0.3);
}

.btn.generate {
  border-color: #ffcc00;
  color: #ffcc00;
  box-shadow: 0 0 8px rgba(255, 204, 0, 0.3);
}

.btn.master {
  border-color: #ff3333;
  color: #ff3333;
  box-shadow: 0 0 8px rgba(255, 0, 0, 0.3);
}

.btn.random {
  border-color: #00f0ff;
  color: #00f0ff;
  box-shadow: 0 0 8px rgba(255, 0, 0, 0.3);
}

/* DJ FX BUTTONS */
.fx-row {
  width: 100%;
  display: flex;
  gap: 5px;
  align-items: center;
  padding: 3px 0 1px 0;
  flex-wrap: nowrap;
}

.btn.dj-fx {
  padding: 4px 7px;
  font-size: 9px;
  letter-spacing: 0.5px;
  border-color: #aa44ff;
  color: #aa44ff;
  box-shadow: 0 0 6px rgba(170, 68, 255, 0.2);
  border-radius: 8px;
  white-space: nowrap;
  flex-shrink: 0;
}

.btn.dj-fx:hover {
  box-shadow: 0 0 12px rgba(170, 68, 255, 0.5);
}

@keyframes fx-beat {
  0%   { box-shadow: 0 0 4px rgba(170, 68, 255, 0.3); background: transparent; color: #aa44ff; }
  8%   { box-shadow: 0 0 32px rgba(220, 140, 255, 1.0), 0 0 14px rgba(170, 68, 255, 0.7); background: #cc77ff; color: #000; }
  35%  { box-shadow: 0 0 18px rgba(170, 68, 255, 0.9); background: #aa44ff; color: #000; }
  100% { box-shadow: 0 0 4px rgba(170, 68, 255, 0.3); background: transparent; color: #aa44ff; }
}

.btn.dj-fx.fx-active {
  background: #aa44ff;
  color: #000;
  box-shadow: 0 0 18px rgba(170, 68, 255, 0.9);
  animation: fx-beat var(--beat-duration, 0.5s) ease-out infinite;
}

.fx-label {
  font-size: 9px;
  color: #6c7a89;
  letter-spacing: 1px;
  white-space: nowrap;
  align-self: center;
  padding-right: 2px;
  flex-shrink: 0;
}

/* CHECKBOX */
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

.checkbox-container input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
}

.solo-label { transition: color 0.15s; }
.solo-label.solo-on {
  color: #ffcc00;
  text-shadow: 0 0 6px rgba(255,204,0,0.6);
}

/* MOBILE */
@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: stretch;
  }

  .left-controls {
    justify-content: space-between;
  }

  .action-buttons {
    justify-content: space-between;
  }
}

/* SAMPLER SECTION */
.sampler {
  padding: 20px 16px;
  border-bottom: 1px solid #1f2a36;
  position: relative;
}

.sampler-header h2 {
  font-size: 16px;
  letter-spacing: 2px;
  color: var(--accent);
}

.sampler-divider {
  margin: 12px 0;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    var(--accent),
    transparent
  );
  opacity: 0.4;
}

.sampler-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.upload-btn {
  border-color: #00f0ff;
  color: #00f0ff;
border: solid;
  box-shadow: 0 0 8px rgba(0, 240, 255, 0.3);
}

.upload-btn:active {
  background: var(--accent);
  color: black;
  box-shadow: 0 0 16px rgba(0, 240, 255, 0.8);
}

.random-btn {
  border-color: #00f0ff;
  color: #00f0ff;
  border: solid;
  box-shadow: 0 0 8px rgba(255, 190, 190, 0.3);
}

.random-btn:active {
  background: var(--accent);
  color: black;
  box-shadow: 0 0 16px rgba(255, 190, 190, 0.8);
}

.arr-setup-btn {
  margin-left: 8px;
  padding: 11px 10px;
  font-size: 11px;
  border-color: #ccff00;
  color: #ccff00;
border: dashed 1px;
  box-shadow: 0 0 8px rgba(204, 255, 0, 0.3);
}

.arr-setup-btn:active {
  background: #ccff00;;
  color: black;
   box-shadow: 0 0 8px rgba(204, 255, 0, 0.8);
}

.mute-box {
  font-size: 13px;
}

/* PATTERN SLOTS */
.pattern-slots {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 0 3px;
}

.slots-label {
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--muted);
  margin-right: 4px;
  opacity: 0.6;
}

.slot-btn {
  min-width: 24px;
  height: 22px;
  padding: 0 7px;
  font-size: 11px;
  font-family: monospace;
  background: #0f141c;
  border: 1px solid #2a3444;
  color: var(--muted);
  cursor: pointer;
  border-radius: 3px;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}

.slot-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.slot-btn.active {
  background: #002830;
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 6px rgba(0,240,255,0.25);
}

.slot-add-btn {
  min-width: 22px;
  height: 22px;
  padding: 0 5px;
  font-size: 15px;
  font-family: monospace;
  background: transparent;
  border: 1px dashed #2a3444;
  color: #3a4a5a;
  cursor: pointer;
  border-radius: 3px;
  line-height: 1.2;
  transition: border-color 0.1s, color 0.1s;
}

.slot-add-btn:hover {
  border-color: var(--muted);
  color: var(--muted);
}

/* PAD SPECIFIC */
.pad-controls {
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}

.pad-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.generate-btn {
  border-color: #ffcc00;
  color: #ffcc00;
  box-shadow: 0 0 8px rgba(255, 204, 0, 0.3);
}

.catchiness-score {
  font-size: 11px;
  font-weight: bold;
  font-family: monospace;
  line-height: 1;
  align-self: center;
  min-width: 32px;
  text-align: center;
  cursor: help;
}

.tries-select {
  background: var(--bg, #111);
  color: #ffcc00;
  border: 1px solid #ffcc0066;
  border-radius: 4px;
  font-size: 10px;
  padding: 3px 2px;
  cursor: pointer;
  align-self: center;
}

.generate-btn:active {
  background: #ccff00;
  color: black;
  box-shadow: 0 0 16px rgba(204, 255, 0, 0.8);
}

.panel-btn {
  border-color: #ccff00;
  color: #ccff00;
  box-shadow: 0 0 8px rgba(204, 255, 0, 0.3);
}

.panel-btn:active {
  background: #ccff00;
  color: black;
  box-shadow: 0 0 16px rgba(255, 204, 0, 0.8);
}

.pad-checkboxes {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.app-title {
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: bold;
  text-align: center;
  padding: 0 2px;
  white-space: nowrap;
  text-shadow: 0 0 8px rgba(0, 240, 255, 0.6);
}

.drum-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.drum-mode-btn {
  background: #0d1520;
  border: none;
  color: #445566;
  font-size: 10px;
  font-family: inherit;
  letter-spacing: 1px;
  padding: 4px 10px;
  cursor: pointer;
  transition: background .1s, color .1s;
}
.drum-mode-btn.active {
  background: #00f0ff18;
  color: #00f0ff;
}
.drum-mode-btn:hover:not(.active) {
  background: #1a2530;
  color: #8899aa;
}

#waveform {
  background: #0c1118;
  border-radius: 6px;
}

.active-play {
  background: #00ff88 !important;
  color: black !important;
  box-shadow: 0 0 20px rgba(0,255,136,0.9) !important;
}

.inst-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.inst-waveform {
  background: #0c1118;
  border-radius: 6px;
  will-change: transform;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

/* ===== PIANO ROLL ===== */
.piano-modal-content {
  position: fixed;
  inset: 0;
  background: #0d1117;
  display: flex;
  flex-direction: column;
  z-index: 2100;
}

.piano-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  background: #121821;
  border-bottom: 1px solid #1f2a36;
  flex-shrink: 0;
}

.piano-title {
  color: #00f0ff;
  font-size: 12px;
  letter-spacing: 2px;
  font-weight: bold;
}

.piano-toolbar {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
}

.piano-actions {
  display: flex;
  gap: 6px;
  align-items: flex;
}

.piano-tool-btn {
  background: #1f2a36;
  border: 1px solid #2a3a4a;
  color: #8899aa;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: 1px;
  transition: all 0.1s;
}
.piano-tool-btn.active {
  background: #00f0ff22;
  border-color: #00f0ff;
  color: #00f0ff;
}
.piano-tool-btn:active { opacity: 0.7; }
.piano-play-btn { display: none; }
.piano-play-btn.playing { display: none; }

.piano-pp-btn {
  font-size: 13px;
  padding: 1px 16px;
  background: #0d1a0f;
  border: 1.5px solid #44dd88;
  color: #44dd88;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-weight: bold;
  transition: all 0.15s;
}
.piano-pp-btn.playing {
  background: #1a1400;
  border-color: #ffcc00;
  color: #ffcc00;
}
.piano-pp-btn:active { opacity: 0.75; }

.piano-body {
  display: flex;
  align-items: stretch;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}

.piano-keyboard-wrap {
  flex-shrink: 0;
  overflow: hidden;
  height: 100%;
}

.piano-keyboard {
  display: block;
  flex-shrink: 0;
  background: #0d1117;
  cursor: default;
  touch-action: none;
}

.piano-scroll-wrap {
  flex: 1;
  overflow-x: auto;
  overflow-y: scroll;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: #1f2a36 #0d1117;
}

.piano-canvas {
  display: block;
  touch-action: none;
}
.piano-needle {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}
/* =================== */

.modal-content {
  background: #121821;
  padding: 25px;
  border-radius: 12px;
  border: 1px solid #00f0ff;
  display: flex;
  flex-direction: column;
  gap: 15px;
  min-width: 260px;
  color: #e6faff;
}

.modal-content h3 {
  color: #00f0ff;
  font-size: 14px;
  letter-spacing: 2px;
}

.modal-buttons {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
}

.hidden {
  display: none;
}

.tune-control {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 10px;
}

.tune-label {
  font-size: 11px;
  color: var(--muted);
}

.tune-box {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #0f141c;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid #1f2a36;
}

.tune-value {
  min-width: 24px;
  text-align: center;
  font-size: 14px;
}

.shift-btn {
  border: 1px solid #cc0033;
  color: #cc0033;
  box-shadow: 0 0 8px rgba(255, 0, 0, 0.3);
  padding: 7px 10px;
  line-height: 0;
}

.shift-btn:active {
  background: #990000;
  color: black;
}

.file-name {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  opacity: 0.8;
  max-width: 160px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fx-modal-content {
  width: 100%;
  height: 100%;
  background: #0b0f14;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
}

.fx-body {
  flex: 1;
  overflow-y: auto;
}

.fx-close-btn {
  width: 100%;
  margin-top: 20px;
  font-size: 16px;
}

.sb-modal-content {
  background: #0d1520;
  border-radius: 12px;
  border: 1px solid #00f0ff44;
  display: flex;
  flex-direction: column;
  width: 420px;
  max-width: 96vw;
  max-height: 80vh;
  overflow: hidden;
  color: #e6faff;
}
.sb-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px 10px;
  border-bottom: 1px solid #1a2a3a;
  flex-shrink: 0;
}
.sb-title {
  flex: 1;
  font-size: 12px;
  letter-spacing: 2px;
  color: #00f0ff;
  font-weight: bold;
}
.sb-breadcrumb {
  font-size: 10px;
  color: #8899aa;
  letter-spacing: 1px;
}
.sb-close {
  background: none;
  border: none;
  color: #8899aa;
  font-size: 18px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}
.sb-close:hover { color: #00f0ff; }
.sb-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  scrollbar-width: thin;
  scrollbar-color: #1f2a36 #0d1117;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.sb-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  font-size: 11px;
  letter-spacing: 1px;
  transition: background 0.1s, border-color 0.1s;
  user-select: none;
}
.sb-item:hover { background: #0e2030; border-color: #1a3a5a; }
.sb-item.sb-folder { color: #00ccff; }
.sb-item.sb-folder:hover { border-color: #00ccff44; }
.sb-item.sb-file   { color: #aaccdd; }
.sb-item.sb-file:hover { border-color: #00f0ff44; color: #00f0ff; }
.sb-item.sb-previewing { background: #0a2a1a; border-color: #00ff88; color: #00ff88; animation: sb-pulse 1s infinite; }
@keyframes sb-pulse { 0%,100% { opacity:1; } 50% { opacity:0.6; } }
.sb-item.sb-loading { color: #445566; cursor: default; }
.sb-item .sb-icon { font-size: 14px; flex-shrink: 0; }
.sb-item .sb-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sb-footer {
  padding: 8px 18px 14px;
  font-size: 10px;
  color: #445566;
  letter-spacing: 1px;
  border-top: 1px solid #1a2a3a;
  flex-shrink: 0;
}
.arr-modal-content {
  width: 100%;
  height: 100%;
  background: #0b0f14;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
}

.arr-body {
  flex: 1;
  overflow-y: auto;
}

.arr-close-btn {
  width: 100%;
  margin-top: 20px;
  font-size: 16px;
}

/* ===== PATTERN MODIFY MODAL ===== */
.patmod-modal-content {
  width: 100%;
  max-width: 480px;
  background: #0b0f14;
  border: 1px solid #1e2d40;
  border-radius: 10px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 90vh;
  overflow-y: auto;
}

.patmod-modal-content h3 {
  margin: 0 0 10px 0;
  font-size: 14px;
  letter-spacing: 2px;
  color: #00f0ff;
  text-align: center;
}

.patmod-subtitle {
  font-size: 10px;
  color: #556;
  text-align: center;
  margin: -6px 0 6px 0;
  letter-spacing: 1px;
}

.patmod-section-label {
  font-size: 10px;
  color: #556;
  letter-spacing: 1px;
  margin-top: 6px;
  margin-bottom: 2px;
  text-transform: uppercase;
}

.patmod-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-bottom: 2px;
}

.patmod-btn {
  background: #0e1620;
  border: 1px solid #1e2d40;
  color: #aab;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 11px;
  letter-spacing: 0.5px;
  text-align: center;
  cursor: pointer;
  transition: background 0.1s, border-color 0.1s, color 0.1s;
  font-family: inherit;
  flex: 1 1 0;
  min-width: 0;
}

.patmod-btn:hover {
  background: #1a2535;
  border-color: #00f0ff44;
  color: #fff;
}

.patmod-btn:active {
  background: #0a2030;
}

.patmod-btn.active {
  background: #0d2535;
  border-color: #00f0ff99;
  color: #00f0ff;
  box-shadow: 0 0 6px rgba(0,240,255,0.2);
}

.patmod-btn.patmod-copy {
  border-color: #ffaa3366;
  color: #ffaa33;
  flex: 1 1 auto;
}

.patmod-btn.patmod-paste {
  border-color: #33ff9966;
  color: #33ff99;
  flex: 1 1 auto;
}

.patmod-btn.patmod-copy:hover  { border-color: #ffaa33aa; }
.patmod-btn.patmod-paste:hover { border-color: #33ff99aa; }

.patmod-btn.patmod-paste:disabled {
  opacity: 0.3;
  cursor: default;
}

.patmod-footer {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.patmod-cancel-btn {
  flex: 1;
  font-size: 13px;
  background: #0e1620;
  border-color: #1e2d40;
  color: #778;
}

.patmod-cancel-btn:hover {
  border-color: #778;
  color: #aab;
}

.patmod-apply-btn {
  flex: 2;
  font-size: 13px;
}

/* Detected note */
.detected-note {
  display: none;
  color: #ffaa33;
  font-size: 0.65em;
  font-weight: normal;
  background: rgba(255,170,51,0.12);
  border: 1px solid rgba(255,170,51,0.35);
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 6px;
  vertical-align: middle;
}

.detected-note.visible {
  display: inline;
}

.tuned-note {
display: none;
 color: #66ffaa;
  font-size: 0.65em;
  font-weight: normal;
  background: rgba(102,255,170,0.12);
  border: 1px solid rgba(102,255,170,0.35);
  border-radius: 4px;
  padding: 1px 6px;
  margin-left: 4px;
  vertical-align: middle;
}

.tuned-note.visible {
  display: inline;
}

.adsr-editor {
display: flex;
flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 10px;
}

.adsr-canvas {
  background: #0a0e13;
  border: 1px solid #1a2a3a;
  border-radius: 6px;
  cursor: crosshair;
  touch-action: none;
  will-change: transform;
}

.adsr-values {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: #8af;
  font-family: monospace;
}

.adsr-values span {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.adsr-values .adsr-label {
  color: #00f0ff;
  font-weight: bold;
  font-size: 11px;
}

.adsr-values .adsr-val {
  color: #e6faff;
  font-size: 13px;
}

.adsr-loop-row {
  display: flex;
  gap: 16px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.adsr-loop-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  letter-spacing: 1px;
  color: #7a9ab0;
  cursor: pointer;
  font-family: monospace;
}

.adsr-duration {
  font-family: monospace;
  font-size: 11px;
  color: #5a7a8a;
  align-self: flex-end;
  margin-bottom: -4px;
}

/* VOLUME SLIDER */
.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 6px;
  background: #1a2230;
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 6px rgba(0, 240, 255, 0.4);
}

.volume-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  cursor: pointer;
}

/* LOADING SPINNER OVERLAY */
.sampler.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11,15,20,0.7);
  z-index: 5;
}

.sampler.loading::before {
  content: 'LOADING...';
  position: absolute;
  z-index: 10;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  color: var(--accent);
  font-size: 14px;
  letter-spacing: 3px;
  animation: pulse 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* STEP RHYTHM DOTS (small, in instrument section) */
.inst-rhythm {
  float: right;
  background: #0c1118;
  border-radius: 4px;
  margin-top: 4px;
}

/* STEP SEQUENCER GRID (in arranger setup modal) */
.arr-grid-wrap {
  margin: 12px 0;
}

.arr-grid-canvas {
  width: 100%;
  height: 40px;
  background: #0c1118;
  border-radius: 6px;
  border: 1px solid #1f2a36;
  cursor: pointer;
}

.arr-grid-info {
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  margin-top: 6px;
  letter-spacing: 1px;
}

/* UNDO/REDO BUTTONS */
.undo-btn, .redo-btn {
  border-color: #8899aa;
  color: #8899aa;
  box-shadow: 0 0 4px rgba(136, 153, 170, 0.2);
  font-size: 11px;
  padding: 8px 10px;
}

.undo-btn:active, .redo-btn:active {
  background: #8899aa;
  color: black;
}

.undo-btn:disabled, .redo-btn:disabled {
  opacity: 0.25;
  cursor: default;
  box-shadow: none;
  pointer-events: none;
}

.piano-btn {
  border-color: #aa88ff;
  color: #aa88ff;
  box-shadow: 0 0 4px rgba(170, 136, 255, 0.2);
  font-size: 11px;
  padding: 8px 10px;
}
.piano-btn:active {
  background: #aa88ff;
  color: black;
}

/* VU METER */
#vuMeter {
  background: #0c1118;
  border-radius: 4px;
  border: 1px solid #1f2a36;
  flex-shrink: 0;
  will-change: transform;
}

.master-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #000;
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.master-modal.hidden {
  display: none;
}

.master-content {
  width: 100%;
  height: 100%;
  padding: 20px;
  box-sizing: border-box;
  background: #111;
  color: white;
  display: flex;
  flex-direction: column;
}

.master-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.master-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.master-limiter-toggle {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 11px;
  letter-spacing: 1px;
  color: #8899aa;
  cursor: pointer;
  user-select: none;
}

.master-limiter-toggle input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: #00f0ff;
  cursor: pointer;
}

.master-limiter-toggle.active {
  color: #00f0ff;
}

[type="range"].kawaii {
  --base: #fe8ce4;
  --light: color-mix(in sRGB, var(--base) 60%, #fff);
  --lighter: color-mix(in sRGB, var(--base) 30%, #fff);
  --dark: color-mix(in sRGB, var(--base) 95%, #000);;
  --transparent: color-mix(in sRGB, var(--base) 0%, #0000);
  appearance: none;
  font-size: 0.85em;
  width: 20em;
  height: 3em;
  border: 0.5em solid #bbb;
  border-radius: 2em;
  box-shadow:
0 0 1em #0001,
0 0.25em 0.5em #0001;
  overflow: hidden;
}

[type="range"].kawaii::-webkit-slider-runnable-track {
  background:
radial-gradient(circle at 0.75em 0.6em, var(--light) calc(0.2em - 1px), #0000 0.2em),
radial-gradient(circle at 1.25em 0.6em, var(--light) calc(0.2em - 1px), #0000 0.2em),
radial-gradient(circle at 5em 0.6em, var(--light) calc(0.2em - 1px), #0000 0.2em),
linear-gradient(var(--light) 0 0) 1.25em 0.4em / 3.75em calc(0.4em - 0.5px) no-repeat,
linear-gradient(90deg, var(--base), var(--transparent) 1em),
linear-gradient(#0000 70%, var(--dark) 80%),
var(--base);
  border-radius: 2em;
  height: 100%;
  overflow: hidden;
}

[type="range"].kawaii::-webkit-slider-thumb {
  appearance: none;
  height: 2em;
  width: 2em;
  color: var(--lighter);
  background:
radial-gradient(circle at 0.75em 0.6em, var(--light) calc(0.2em - 1px), #0000 0.2em),
linear-gradient(90deg, #0000 0.75em, var(--base) 0) 0 0 / 100% 50% no-repeat;
  border-radius: 50%; 0 50% 50% 0;
  box-shadow:
inset -0.5em 0 0.5em -0.25em var(--base),
 1em 0 0 0.25em,
 2em 0 0 0.25em,
 3em 0 0 0.25em,
 4em 0 0 0.25em,
 5em 0 0 0.25em,
 6em 0 0 0.25em,
 7em 0 0 0.25em,
 8em 0 0 0.25em,
 9em 0 0 0.25em,
10em 0 0 0.25em,
11em 0 0 0.25em,
12em 0 0 0.25em,
12em 0 0 0.25em,
13em 0 0 0.25em,
14em 0 0 0.25em,
15em 0 0 0.25em,
16em 0 0 0.25em,
17em 0 0 0.25em,
18em 0 0 0.25em,
19em 0 0 0.25em;
}

 [type="range"].kawaii::-moz-range-track {
   background:
radial-gradient(circle at 0.75em 30%, var(--light) calc(0.2em - 1px), #0000 0.2em),
radial-gradient(circle at 1.5em 30%, var(--light) calc(0.2em - 1px), #0000 0.2em),
radial-gradient(circle at 5.5em 30%, var(--light) calc(0.2em - 1px), #0000 0.2em),
linear-gradient(var(--light) 0 0) 1.5em calc(15% + 0.18em) / 4em calc(0.4em - 0.5px) no-repeat,
linear-gradient(90deg, var(--base), var(--transparent) 1em),
linear-gradient(var(--transparent) 70%, var(--dark) 80%),
var(--base);
  border-radius: 2em;
  height: 100%;
  overflow: hidden;
}

[type="range"].kawaii::-moz-range-thumb {
  appearance: none;
  height: 2em;
  width: 2em;
  border: 0;
  color: var(--lighter);
  background:
radial-gradient(circle at 0.75em 0.6em, var(--light) calc(0.2em - 1px), #0000 0.2em),
linear-gradient(90deg, var(--transparent) 0.75em, var(--base) 0) 0 0 / 100% 50% no-repeat;
  border-radius: 50%; 0 50% 50% 0;
  box-shadow:
inset -0.5em 0 0.5em -0.25em var(--base),
 1em 0 0 0.25em,
 2em 0 0 0.25em,
 3em 0 0 0.25em,
 4em 0 0 0.25em,
 5em 0 0 0.25em,
 6em 0 0 0.25em,
 7em 0 0 0.25em,
 8em 0 0 0.25em,
 9em 0 0 0.25em,
10em 0 0 0.25em,
11em 0 0 0.25em,
12em 0 0 0.25em,
12em 0 0 0.25em,
13em 0 0 0.25em,
14em 0 0 0.25em,
15em 0 0 0.25em,
16em 0 0 0.25em,
17em 0 0 0.25em,
18em 0 0 0.25em,
19em 0 0 0.25em;
}

/* ===== ARRANGE SETUP FORM ===== */
.arr-form { display: flex; flex-direction: column; gap: 18px; padding: 4px 0; }

.arr-field { display: flex; flex-direction: column; gap: 8px; }

.arr-field-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
}

/* ===== MUSIC STYLE BUTTONS ===== */
.style-btn-group { display: flex; flex-wrap: wrap; gap: 6px; }

.style-btn {
  padding: 5px 11px;
  font-size: 10px;
  font-family: monospace;
  letter-spacing: 1px;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid transparent;
  background: #0c1118;
  color: var(--muted);
  transition: 0.15s;
  position: relative;
}
.style-btn:hover { opacity: 0.85; color: #fff; }
.style-btn.active {
  color: #000;
  box-shadow: 0 0 8px rgba(255,255,255,0.2);
}

/* Kolory per styl */
.style-btn[data-style="electro"]   { --sc: #00f0ff; }
.style-btn[data-style="techno"]    { --sc: #ff3355; }
.style-btn[data-style="trance"]    { --sc: #aa55ff; }
.style-btn[data-style="handsup"]   { --sc: #ffaa00; }
.style-btn[data-style="hardstyle"] { --sc: #ff6600; }
.style-btn[data-style="house"]     { --sc: #00dd88; }
.style-btn[data-style="psych"]     { --sc: #ff44cc; }
.style-btn[data-style="none"]      { --sc: #445566; }

.style-btn { border-color: color-mix(in srgb, var(--sc) 35%, transparent); color: color-mix(in srgb, var(--sc) 70%, #aaa); }
.style-btn:hover { border-color: var(--sc); color: var(--sc); }
.style-btn.active {
  background: var(--sc);
  border-color: var(--sc);
  box-shadow: 0 0 10px color-mix(in srgb, var(--sc) 50%, transparent);
  color: #000;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-shadow: none;
}
/* NONE i TECHNO mają ciemny/nasycony kolor — biały tekst czytelniejszy */
.style-btn[data-style="none"].active  { color: #cde; }
.style-btn[data-style="techno"].active { color: #fff; }

.style-note {
  font-size: 9px;
  color: var(--muted);
  opacity: 0.6;
  letter-spacing: 1px;
  margin-top: 2px;
}

.btn-group-btn {
  padding: 5px 10px;
  font-size: 11px;
  font-family: monospace;
  border: 1px solid #1f2a36;
  background: #0c1118;
  color: var(--muted);
  border-radius: 6px;
  cursor: pointer;
  transition: 0.15s;
  letter-spacing: 0.5px;
}

.btn-group-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-group-btn.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(0,240,255,0.4);
}

/* Toggle switch (zamiennik checkboxa) */
.toggle-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

.toggle-item { display: flex; align-items: center; gap: 8px; cursor: pointer; }

.toggle-item input[type="checkbox"] { display: none; }

.toggle-switch {
  width: 36px;
  height: 18px;
  background: #1f2a36;
  border-radius: 9px;
  position: relative;
  transition: background 0.2s;
  border: 1px solid #2a3a4a;
}

.toggle-switch::after {
  content: '';
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--muted);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: 0.2s;
}

.toggle-item input:checked + .toggle-switch {
  background: var(--accent);
  border-color: var(--accent);
}

.toggle-item input:checked + .toggle-switch::after {
  left: 20px;
  background: #000;
}

.toggle-item-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

.toggle-item input:checked ~ .toggle-item-label {
  color: var(--accent);
}

/* ===== FX SLIDERS ===== */
.fx-slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.fx-slider-label {
  font-size: 10px;
  letter-spacing: 1.5px;
  color: var(--muted);
  min-width: 90px;
  text-transform: uppercase;
}

.fx-slider-val {
  font-size: 11px;
  color: var(--accent);
  min-width: 38px;
  text-align: right;
  font-family: monospace;
}

input[type="range"].fx-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 140px;
  height: 3px;
  background: #1f2a36;
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type="range"].fx-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px rgba(0,240,255,0.6);
  cursor: pointer;
  border: none;
}

input[type="range"].fx-slider::-moz-range-thumb {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px rgba(0,240,255,0.6);
  cursor: pointer;
  border: none;
}

.fx-section {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 12px 0 4px 0;
}

.fx-section-title {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--muted);
  border-bottom: 1px solid #1f2a36;
  padding-bottom: 6px;
  margin-bottom: 2px;
}

/* ================================================================
   ARRANGEMENT TIMELINE
================================================================ */

.arr-timeline {
  padding: 12px 16px 16px;
  border-top: 1px solid #1f2a36;
  border-bottom: 1px solid #1f2a36;
  background: #0a0f16;
}

.arr-tl-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.arr-tl-title {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--muted);
  margin-right: 4px;
}

.arr-tl-btn {
  font-size: 10px;
  padding: 5px 10px;
  letter-spacing: 1px;
}

.arr-btn-active {
  background: #cc1133 !important;
  border-color: #ff2244 !important;
  color: #fff !important;
  box-shadow: 0 0 8px rgba(255,34,68,0.4) !important;
}

.arr-status {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--accent);
  opacity: 0.7;
  margin-left: 4px;
}

.arr-tl-scroll {
  overflow-x: auto;
  overflow-y: visible;
  padding-bottom: 4px;
  scrollbar-width: thin;
  scrollbar-color: #1f3050 transparent;
}

.arr-tl-scroll::-webkit-scrollbar { height: 6px; }
.arr-tl-scroll::-webkit-scrollbar-track { background: transparent; }
.arr-tl-scroll::-webkit-scrollbar-thumb { background: #1f3050; border-radius: 3px; }

.arr-tl-grid {
  display: grid;
  gap: 2px;
  width: max-content;
  min-width: 100%;
}

.arr-empty {
  padding: 14px 8px;
  font-size: 10px;
  letter-spacing: 1px;
  color: #2a3a4a;
  text-align: center;
}

/* cells */
.arr-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
}

.arr-corner {
  justify-content: flex-start;
  padding-left: 2px;
}

.arr-total-bars {
  font-size: 9px;
  letter-spacing: 1px;
  color: #2a3a4a;
}

.arr-track-lbl {
  justify-content: flex-start;
  padding-left: 4px;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  border-right: 1px solid #18222e;
  padding-right: 6px;
}

/* segment headers */
.arr-seg-hd {
  flex-direction: column;
  gap: 2px;
  padding: 5px 3px;
  background: #0e1620;
  border-radius: 3px;
  border: 1px solid #1a2530;
  min-height: 68px;
  justify-content: flex-start;
  align-items: center;
}

.arr-seg-hd.arr-seg-active {
  border-color: var(--accent);
  background: #001c28;
}

.arr-seg-hd.arr-seg-selected {
  border-color: #6a5a20;
  background: #131008;
}

.arr-seg-num {
  font-size: 9px;
  color: #304050;
  letter-spacing: 1px;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 2px;
  transition: color 0.1s, background 0.1s;
}

.arr-seg-num:hover {
  color: #c0a840;
  background: #1a1508;
}

.arr-seg-active .arr-seg-num {
  color: var(--accent);
  cursor: default;
}

.arr-seg-num-sel {
  color: #c0a840 !important;
}

.arr-pat-cell.arr-seg-selected {
  border-color: rgba(160, 130, 40, 0.2);
  background: #0f0c04;
}

.arr-bars-row {
  display: flex;
  align-items: center;
  gap: 1px;
}

.arr-bars-val {
  font-size: 13px;
  min-width: 22px;
  text-align: center;
  color: var(--text);
  font-family: monospace;
}

.arr-seg-ctrl {
  display: flex;
  gap: 1px;
  align-items: center;
}

.arr-micro-btn {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 9px;
  cursor: pointer;
  padding: 1px 3px;
  border-radius: 2px;
  line-height: 1.4;
  opacity: 0.6;
  transition: opacity 0.1s, background 0.1s;
}

.arr-micro-btn:hover:not(:disabled) {
  color: var(--text);
  opacity: 1;
  background: #1a2a3a;
}

.arr-micro-btn:disabled {
  opacity: 0.15;
  cursor: default;
}

.arr-del-btn {
  color: #442233;
  font-size: 12px;
}

.arr-del-btn:hover:not(:disabled) {
  color: #ff4455 !important;
  background: #2a0e14 !important;
  opacity: 1 !important;
}

/* pattern cells */
.arr-pat-cell {
  padding: 2px;
  background: #0b1018;
  border-radius: 2px;
  border: 1px solid transparent;
  min-height: 26px;
}

.arr-pat-cell.arr-seg-active {
  border-color: rgba(0, 240, 255, 0.15);
  background: #001620;
}

.arr-pat-btn {
  width: 100%;
  min-width: 52px;
  height: 22px;
  background: #162030;
  border: 1px solid #253545;
  color: var(--accent);
  font-size: 12px;
  font-family: monospace;
  letter-spacing: 1px;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.1s, border-color 0.1s;
}

.arr-pat-btn:hover {
  background: #1e2e40;
  border-color: var(--accent);
}

.arr-pat-btn.arr-pat-null {
  color: #263646;
  background: #0a1018;
  border-color: #131d28;
}

.arr-pat-btn.arr-pat-null:hover {
  color: #3a5060;
  border-color: #263646;
}

/* FX row */
.arr-fx-lbl {
  color: #aa44ff;
  font-size: 9px;
  letter-spacing: 1px;
}

.arr-fx-cell {
  background: #0c0a14;
  border-top: 1px solid #1a1030;
  border-bottom: 1px solid #1a1030;
}

.arr-fx-cell.arr-seg-active {
  border-color: rgba(170, 68, 255, 0.25);
  background: #100820;
}

.arr-fx-cell.arr-seg-selected {
  border-color: rgba(160, 130, 40, 0.2);
  background: #0f0c04;
}

.arr-pat-btn.arr-fx-has {
  color: #cc88ff;
  background: #180c28;
  border-color: #5a2888;
  letter-spacing: 0;
}

.arr-pat-btn.arr-fx-has:hover {
  background: #220f38;
  border-color: #aa44ff;
  color: #ee99ff;
}