.wavetable-modal-content {
  background: linear-gradient(145deg, #1a1a1a, #2a2a2a);
  border-radius: 15px;
  width: 90%;
  max-width: 1200px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 50px rgba(0, 255, 157, 0.2), inset 0 0 1px rgba(255, 255, 255, 0.1);
  border: 1px solid #333;
}

.wavetable-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-bottom: 1px solid #333;
  background: linear-gradient(to bottom, #2a2a2a, #1a1a1a);
  border-radius: 15px 15px 0 0;
}

.wavetable-header h2 {
  margin: 0;
  color: #c4ed94;
  font-size: 1.3em;
  text-shadow: 0 0 10px rgba(0, 255, 157, 0.5);
}

.close-btn {
  background: none;
  border: none;
  color: #888;
  font-size: 1.5em;
  cursor: pointer;
  transition: color 0.2s, transform 0.2s;
  padding: 5px 10px;
}

.close-btn:hover {
  color: #ff6b6b;
  transform: scale(1.1);
}

.wavetable-main {
  display: flex;
  flex: 1;
  min-height: 0;
  padding: 20px;
  gap: 20px;
}

/* 3D View Container */
.wavetable-3d-container {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  background: #0a0a0a;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #333;
}

#wavetable3D {
  flex: 1;
  width: 100%;
  cursor: grab;
}

#wavetable3D:active {
  cursor: grabbing;
}

.wavetable-3d-controls {
  display: flex;
  gap: 20px;
  padding: 10px 15px;
  background: #1a1a1a;
  border-top: 1px solid #333;
}

.wavetable-3d-controls label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #888;
  font-size: 0.85em;
}

.wavetable-3d-controls input[type="range"] {
  width: 100px;
  accent-color: #c4ed94;
}

/* 2D Editor Container */
.wavetable-2d-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: #0a0a0a;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid #333;
}

.wavetable-2d-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 15px;
  background: #1a1a1a;
  border-bottom: 1px solid #333;
  color: #888;
  font-size: 0.9em;
}

.frame-nav {
  display: flex;
  gap: 5px;
}

.frame-btn {
  background: #333;
  border: none;
  color: #888;
  width: 30px;
  height: 30px;
  border-radius: 5px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.2s;
}

.frame-btn:hover {
  background: #444;
  color: #c4ed94;
}

#wavetable2D {
  flex: 1;
  width: 100%;
  cursor: crosshair;
}

/* Tools Panel */
.wavetable-tools {
  display: flex;
  gap: 5px;
  padding: 10px 15px;
  background: #1a1a1a;
  border-top: 1px solid #333;
  align-items: center;
  flex-wrap: wrap;
}

.tool-btn {
  background: #333;
  border: none;
  color: #888;
  width: 36px;
  height: 36px;
  border-radius: 5px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: all 0.2s;
}

.tool-btn:hover {
  background: #444;
  color: #fff;
}

.tool-btn.active {
  background: #c4ed94;
  color: #000;
}

.tool-separator {
  width: 1px;
  height: 24px;
  background: #333;
  margin: 0 5px;
}

.wavetable-tools select {
  background: #333;
  border: none;
  color: #888;
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.85em;
}

.wavetable-tools select:hover {
  background: #444;
}

/* Footer */
.wavetable-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  border-top: 1px solid #333;
  background: linear-gradient(to top, #1a1a1a, #222);
  border-radius: 0 0 15px 15px;
}

.wavetable-footer select {
  background: #333;
  border: none;
  color: #888;
  padding: 10px 15px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.9em;
}

.apply-btn {
  background: linear-gradient(145deg, #c4ed94, #00cc7d);
  border: none;
  color: #000;
  padding: 12px 30px;
  border-radius: 5px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.apply-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(0, 255, 157, 0.5);
}

/* Wavetable Edit Button in Controls */
.wavetable-edit-btn {
  background: linear-gradient(145deg, #333, #444);
  border: 1px solid #555;
  color: #c4ed94;
  padding: 8px 15px;
  border-radius: 5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  font-size: 0.9em;
}

.wavetable-edit-btn:hover {
  background: linear-gradient(145deg, #444, #555);
  box-shadow: 0 0 10px rgba(0, 255, 157, 0.3);
}

.wavetable-edit-btn i {
  font-size: 1.1em;
}

/* Wavetable Controls in Oscillator Group */
#wavetableControls {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#wavetableControls .control {
  margin-top: 5px;
}

/* ─────────────────────────────────────────────────────────────
   CTHULHU — step arpeggiator
   ───────────────────────────────────────────────────────────── */
.cthulhu-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: auto;
  height: 40px;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
}
.cthulhu-trigger-btn.cthulhu-active {
  background: #c4ed94;
  color: #000;
  box-shadow: 0 0 8px rgba(0, 255, 157, 0.6);
}
.cthulhu-trigger-btn i { color: #c4ed94; }
.cthulhu-trigger-btn.cthulhu-active i { color: #000; }

/* ── Modal shell ── */
.cthulhu-modal-content {
  background: #0d0d0d;
  color: #d8d8d8;
  border-radius: 6px;
  width: 96vw;
  max-width: 1320px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  border: 1px solid #1f1f1f;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 30px rgba(0, 255, 157, 0.06);
  font-family: 'Courier New', monospace;
}

.cthulhu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid #1f1f1f;
  background: linear-gradient(180deg, #1a1a1a, #0d0d0d);
}
.cthulhu-header h2 {
  margin: 0;
  font-size: 18px;
  color: #c4ed94;
  display: flex;
  align-items: baseline;
  gap: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
}
.cthulhu-tagline {
  font-size: 11px;
  color: #555;
  letter-spacing: 2px;
  font-weight: normal;
}
.cthulhu-master {
  display: flex;
  align-items: center;
  gap: 10px;
}

.close-btn {
  background: transparent;
  color: #666;
  border: none;
  font-size: 16px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 3px;
}
.close-btn:hover { color: #c4ed94; background: #1a1a1a; }

/* ── Toolbar ── */
.cthulhu-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  padding: 10px 18px;
  background: #131313;
  border-bottom: 1px solid #1f1f1f;
}
.cthulhu-toolbar label {
  display: inline-flex;
  flex-direction: column;
  gap: 3px;
  font-size: 9px;
  text-transform: uppercase;
  color: #777;
  letter-spacing: 1px;
}
.cthulhu-toolbar select,
.cthulhu-toolbar input[type="number"] {
  background: #1a1a1a;
  color: #c4ed94;
  border: 1px solid #2a2a2a;
  border-radius: 3px;
  padding: 4px 8px;
  font-size: 12px;
  font-family: inherit;
  font-weight: 600;
}
.cthulhu-toolbar input[type="number"] {
  width: 64px;
  text-align: center;
}
.cthulhu-toolbar input[type="range"] {
  width: 110px;
  accent-color: #c4ed94;
}
.cthulhu-toolbar-spacer { flex: 1; }

.cthulhu-held {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #0a0a0a;
  border: 1px solid #2a2a2a;
  border-radius: 3px;
  min-width: 140px;
}
.cthulhu-held-label {
  font-size: 9px;
  color: #555;
  letter-spacing: 1px;
  font-weight: 700;
}
.cthulhu-held-display {
  font-size: 11px;
  color: #555;
  font-weight: 700;
  font-family: 'Courier New', monospace;
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow-x: auto;
  max-width: 220px;
}
.cthulhu-held-display-active { color: #c4ed94; }
.cthulhu-held-display-latched { color: #ffaa00; }


.cthulhu-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 10px;
  background: #1a1a1a;
  border: 1px solid #2a2a2a;
  border-radius: 3px;
}
.cthulhu-toggle input[type="checkbox"] { margin: 0; cursor: pointer; accent-color: #c4ed94; }
.cthulhu-toggle span {
  font-size: 11px;
  color: #d8d8d8;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.cthulhu-toggle:has(input:checked) {
  background: #003322;
  border-color: #c4ed94;
}
.cthulhu-toggle:has(input:checked) span { color: #c4ed94; }
.cthulhu-toggle-big { padding: 6px 14px; }
.cthulhu-toggle-big span { font-size: 13px; font-weight: 700; }

.cthulhu-num { width: 60px; }
.cthulhu-slider { width: 110px; }

.cthulhu-btn {
  background: #1a1a1a;
  color: #d8d8d8;
  border: 1px solid #2a2a2a;
  border-radius: 3px;
  padding: 5px 12px;
  cursor: pointer;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-family: inherit;
  font-weight: 600;
}
.cthulhu-btn:hover {
  background: #c4ed94;
  color: #000;
  border-color: #c4ed94;
}
.cthulhu-btn-warn {
  background: #2a1a1a;
  border-color: #4a2a2a;
  color: #ff6a6a;
}
.cthulhu-btn-warn:hover {
  background: #ff4a4a;
  color: #000;
  border-color: #ff4a4a;
}

/* ── Main stage ── */
.cthulhu-stage {
  padding: 14px 18px;
  flex: 1;
  overflow: auto;
  min-height: 0;
}

.cthulhu-tone-grid-wrap {
  display: flex;
  align-items: stretch;
  margin-bottom: 4px;
}
.cthulhu-tone-axis {
  display: flex;
  flex-direction: column;
  width: 38px;
  margin-right: 4px;
}
.cthulhu-tone-axis-label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: #555;
  letter-spacing: 1px;
  font-weight: 700;
  border-right: 1px solid #1f1f1f;
  padding-right: 6px;
}

.cthulhu-tone-grid {
  display: grid;
  flex: 1;
  gap: 2px;
  background: #1f1f1f;
  padding: 2px;
  border-radius: 3px;
  min-height: 320px;
}
.cthulhu-grid-cell {
  background: #0a0a0a;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.05s ease, box-shadow 0.05s ease;
  position: relative;
  border: 1px solid transparent;
}
.cthulhu-grid-cell:hover {
  background: #181818;
  border-color: #2a2a2a;
}
.cthulhu-grid-cell-rand {
  background: #0d0a14;
}
.cthulhu-grid-cell-rand:hover {
  background: #1a1224;
}
.cthulhu-grid-cell-on {
  background: #c4ed94;
  box-shadow: 0 0 6px rgba(0, 255, 157, 0.55), inset 0 0 4px rgba(255, 255, 255, 0.3);
}
.cthulhu-grid-cell-on:hover {
  background: #00d484;
}
.cthulhu-grid-cell-rand.cthulhu-grid-cell-on {
  background: #c466ff;
  box-shadow: 0 0 6px rgba(196, 102, 255, 0.6);
}
.cthulhu-grid-cell-disabled {
  opacity: 0.18;
  pointer-events: none;
}
.cthulhu-grid-cell-column-playing {
  outline: 1px solid #ff4a90;
  outline-offset: -1px;
}

/* ── Step number row ── */
.cthulhu-step-numbers-row,
.cthulhu-param-row {
  display: flex;
  align-items: center;
  margin-top: 4px;
}
.cthulhu-param-label {
  width: 38px;
  margin-right: 4px;
  text-align: right;
  padding-right: 6px;
  font-size: 9px;
  color: #555;
  letter-spacing: 1px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: help;
  border-right: 1px solid #1f1f1f;
  flex-shrink: 0;
}
.cthulhu-step-numbers,
.cthulhu-param-cells {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 2px;
  flex: 1;
  background: #1f1f1f;
  padding: 2px;
  border-radius: 3px;
}
.cthulhu-step-number {
  background: #0a0a0a;
  text-align: center;
  font-size: 10px;
  color: #666;
  padding: 4px 0;
  border-radius: 2px;
  font-weight: 700;
}
.cthulhu-step-number-disabled { opacity: 0.18; }
.cthulhu-step-number-playing {
  background: #ff4a90;
  color: #000;
  box-shadow: 0 0 6px rgba(255, 74, 144, 0.6);
}

/* ── Param cells (octave / velocity / gate) ── */
.cthulhu-param-cell {
  background: #0a0a0a;
  position: relative;
  height: 32px;
  border-radius: 2px;
  cursor: ns-resize;
  overflow: hidden;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cthulhu-param-cell:hover {
  background: #181818;
  outline: 1px solid #2a2a2a;
}
.cthulhu-param-cell-disabled { opacity: 0.18; pointer-events: none; }
.cthulhu-param-cell-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, #c4ed94, #006040);
  pointer-events: none;
  opacity: 0.55;
}
.cthulhu-param-cell-label {
  position: relative;
  font-size: 10px;
  color: #d8d8d8;
  font-weight: 700;
  pointer-events: none;
  text-shadow: 0 0 3px rgba(0, 0, 0, 0.9);
  letter-spacing: 0.5px;
}

/* ── Help text ── */
.cthulhu-help {
  padding: 8px 18px 12px;
  color: #555;
  font-size: 11px;
  border-top: 1px solid #1f1f1f;
  font-family: 'Helvetica', Arial, sans-serif;
}
.cthulhu-help kbd {
  background: #1a1a1a;
  padding: 1px 6px;
  border-radius: 2px;
  font-size: 10px;
  color: #c4ed94;
  border: 1px solid #2a2a2a;
  font-family: 'Courier New', monospace;
}

@media (max-width: 800px) {
  .cthulhu-toolbar { gap: 8px; padding: 8px 12px; }
  .cthulhu-stage { padding: 8px 10px; }
  .cthulhu-tone-grid { min-height: 260px; }
  .cthulhu-param-cell { height: 24px; }
  .cthulhu-tone-axis { width: 28px; }
  .cthulhu-param-label { width: 28px; font-size: 8px; }
}