/* ============================================================
   RHYTHM REACTOR V3 — Drum + Synth + Launchpad Workstation
   ============================================================ */

:root {
  --bg-deep:      #050608;
  --bg-panel:     #0a0c12;
  --bg-card:      #0f1219;
  --bg-row-odd:   #0d1018;
  --bg-row-even:  #0b0e15;

  --accent-primary:   #ff3d6e;
  --accent-secondary: #00d4ff;
  --accent-tertiary:  #7c3aed;
  --accent-green:     #00ff88;
  --accent-orange:    #ff8c00;
  --accent-yellow:    #ffd700;

  --text-primary:   #f0f4ff;
  --text-secondary: #8899bb;
  --text-muted:     #3d4a66;

  --border:     rgba(255,255,255,0.07);
  --glow-pink:  0 0 20px rgba(255,61,110,0.6), 0 0 60px rgba(255,61,110,0.2);
  --glow-cyan:  0 0 20px rgba(0,212,255,0.6), 0 0 60px rgba(0,212,255,0.2);
  --glow-green: 0 0 20px rgba(0,255,136,0.6), 0 0 60px rgba(0,255,136,0.2);
  --glow-purple:0 0 20px rgba(124,58,237,0.5), 0 0 60px rgba(124,58,237,0.2);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --step-size: 42px;
  --step-gap:  4px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  overflow-x: hidden;
}

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  min-height: 100vh;
  position: relative;
}

/* ---------- Background Effects ---------- */
.bg-glow {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 40% at 20% 10%,  rgba(255,61,110,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 90%,  rgba(0,212,255,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 50% 50%,  rgba(124,58,237,0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.15) 2px,
    rgba(0,0,0,0.15) 4px
  );
  pointer-events: none;
  z-index: 1;
  opacity: 0.4;
}

/* ---------- App Container ---------- */
.app-container {
  position: relative;
  z-index: 2;
  max-width: 1300px;
  margin: 0 auto;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ---------- Header ---------- */
.header {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  backdrop-filter: blur(20px);
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1;
  min-width: 100px;
}

.logo-model {
  font-family: 'Orbitron', monospace;
  font-size: 34px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  filter: drop-shadow(0 0 16px rgba(255,61,110,0.5));
  line-height: 1.1;
}

.logo-sub {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--text-muted);
  padding-left: 2px;
  margin-top: 3px;
  text-transform: uppercase;
}

/* Main tab nav */
.main-tabs {
  display: flex;
  gap: 6px;
  flex: 1;
  justify-content: center;
}

.main-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Orbitron', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 10px 24px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.main-tab:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.03);
}

.main-tab.active {
  background: linear-gradient(135deg, rgba(255,61,110,0.15), rgba(124,58,237,0.15));
  border-color: var(--accent-primary);
  color: var(--text-primary);
  box-shadow: 0 0 20px rgba(255,61,110,0.2), inset 0 0 20px rgba(255,61,110,0.05);
}

.tab-icon { font-size: 16px; }

/* Header right */
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.control-label {
  display: block;
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

/* ---------- Genre Tabs ---------- */
.genre-selector { flex: 1; min-width: 260px; }

.genre-tabs {
  display: flex;
  gap: 4px;
  background: rgba(5,6,8,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 4px;
}

.genre-tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.genre-tab:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.genre-tab.active {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
  color: #fff;
  box-shadow: 0 0 16px rgba(255,61,110,0.4);
}

/* ---------- BPM Control ---------- */
.bpm-control { display: flex; flex-direction: column; }

.bpm-display {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(5,6,8,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 10px;
}

.bpm-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
  transition: color 0.15s, transform 0.1s;
  user-select: none;
}

.bpm-btn:hover { color: var(--accent-primary); transform: scale(1.2); }
.bpm-btn:active { transform: scale(0.9); }

.bpm-value {
  font-family: 'Orbitron', monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-secondary);
  min-width: 56px;
  text-align: center;
  text-shadow: var(--glow-cyan);
}

/* ---------- Swing Control ---------- */
.swing-control {
  display: flex;
  flex-direction: column;
}

/* ---------- Slider ---------- */
.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.1);
  outline: none;
  cursor: pointer;
}

.slider.wide { width: 160px; }

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px rgba(255,61,110,0.8);
  cursor: pointer;
  transition: transform 0.1s;
}

.slider::-webkit-slider-thumb:hover { transform: scale(1.3); }

.slider-val {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- Transport Buttons ---------- */
.transport {
  display: flex;
  gap: 8px;
}

.transport-btn {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.transport-btn.play {
  background: linear-gradient(135deg, #00ff88, #00d4ff);
  color: #050608;
  box-shadow: 0 0 20px rgba(0,255,136,0.3);
}

.transport-btn.play:hover {
  box-shadow: var(--glow-green);
  transform: translateY(-1px);
}

.transport-btn.play.playing {
  background: linear-gradient(135deg, #ff8c00, #ffd700);
  box-shadow: 0 0 20px rgba(255,140,0,0.4);
  animation: pulse-play 0.8s ease-in-out infinite alternate;
}

@keyframes pulse-play {
  from { box-shadow: 0 0 10px rgba(255,140,0,0.4); }
  to   { box-shadow: 0 0 30px rgba(255,140,0,0.8), 0 0 60px rgba(255,140,0,0.3); }
}

.transport-btn.stop {
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.transport-btn.stop:hover {
  background: rgba(255,61,110,0.15);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.transport-btn.reset {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.transport-btn.reset:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

/* ---------- Step Counter Header ---------- */
.step-row-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 4px;
}

.step-count-label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--text-muted);
  font-weight: 600;
}

.step-count-options {
  display: flex;
  gap: 6px;
}

.step-count-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
}

.step-count-btn:hover { color: var(--text-primary); border-color: rgba(255,255,255,0.2); }

.step-count-btn.active {
  background: rgba(0,212,255,0.12);
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
  box-shadow: 0 0 10px rgba(0,212,255,0.2);
}

.beat-indicators {
  display: flex;
  gap: var(--step-gap);
  margin-left: 16px;
  flex: 1;
  justify-content: flex-start;
  overflow: hidden;
}

.beat-indicator {
  width: var(--step-size);
  height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.06);
  transition: background 0.05s;
  flex-shrink: 0;
}

.beat-indicator.bar-start { background: rgba(255,255,255,0.16); }
.beat-indicator.beat-start { background: rgba(255,255,255,0.09); }
.beat-indicator.active { background: var(--accent-secondary); box-shadow: 0 0 6px var(--accent-secondary); }

/* ---------- Sequencer ---------- */
.sequencer {
  display: flex;
  flex-direction: column;
  gap: 3px;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  backdrop-filter: blur(20px);
}

/* Row */
.drum-row {
  display: grid;
  grid-template-columns: 160px 36px 36px 1fr;
  align-items: center;
  gap: 12px;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  transition: background 0.1s;
}

.drum-row:hover { background: rgba(255,255,255,0.02); }
.drum-row:nth-child(even) { background: rgba(0,0,0,0.15); }
.drum-row:nth-child(even):hover { background: rgba(255,255,255,0.025); }

/* Row separator every 4 rows */
.drum-row.section-start { border-top: 1px solid rgba(255,255,255,0.05); margin-top: 6px; padding-top: 10px; }

/* Instrument Label */
.instrument-label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.instrument-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  background: rgba(255,255,255,0.05);
}

.instrument-name {
  font-family: 'Orbitron', monospace;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Per-instrument controls */
.row-vol, .row-pitch {
  -webkit-appearance: none;
  appearance: none;
  width: 30px;
  height: 30px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 50%;
  outline: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

/* Steps container */
.steps-container {
  display: flex;
  gap: var(--step-gap);
}

/* Step Button */
.step-btn {
  width: var(--step-size);
  height: var(--step-size);
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.08s ease;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.step-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  border-radius: inherit;
}

/* Off state */
.step-btn.off {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}

.step-btn.off:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.15);
  transform: scale(1.05);
}

/* Beat group visual separators */
.step-btn.group-start { margin-left: 8px; }

/* On state — colored per instrument group */
.step-btn.on {
  border: 1px solid transparent;
  transform: scale(0.97);
}

/* Accent (double-click = louder step) */
.step-btn.accent::before {
  content: "▲";
  position: absolute;
  top: 2px;
  right: 3px;
  font-size: 6px;
  color: rgba(255,255,255,0.8);
}

/* Active playhead step */
.step-btn.playing {
  box-shadow: 0 0 0 2px #fff, 0 0 16px rgba(255,255,255,0.5);
  z-index: 2;
}

/* ---------- Color classes per track ---------- */
.color-red    .step-btn.on { background: linear-gradient(135deg,#ff3d6e,#cc0033); box-shadow: 0 0 12px rgba(255,61,110,0.6); }
.color-orange .step-btn.on { background: linear-gradient(135deg,#ff8c00,#cc5500); box-shadow: 0 0 12px rgba(255,140,0,0.6); }
.color-yellow .step-btn.on { background: linear-gradient(135deg,#ffd700,#cc9900); box-shadow: 0 0 12px rgba(255,215,0,0.5); }
.color-green  .step-btn.on { background: linear-gradient(135deg,#00ff88,#009933); box-shadow: 0 0 12px rgba(0,255,136,0.5); }
.color-cyan   .step-btn.on { background: linear-gradient(135deg,#00d4ff,#0066cc); box-shadow: 0 0 12px rgba(0,212,255,0.5); }
.color-blue   .step-btn.on { background: linear-gradient(135deg,#4488ff,#2244bb); box-shadow: 0 0 12px rgba(68,136,255,0.5); }
.color-purple .step-btn.on { background: linear-gradient(135deg,#9b59b6,#5e2d7a); box-shadow: 0 0 12px rgba(155,89,182,0.5); }
.color-pink   .step-btn.on { background: linear-gradient(135deg,#ff69b4,#cc3377); box-shadow: 0 0 12px rgba(255,105,180,0.5); }
.color-white  .step-btn.on { background: linear-gradient(135deg,#c9d6e8,#8899aa); box-shadow: 0 0 12px rgba(200,214,232,0.4); }

/* Row mute solo */
.row-mute {
  width: 30px;
  height: 30px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  letter-spacing: 0.5px;
}

.row-mute:hover {
  background: rgba(255,61,110,0.15);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.row-mute.muted {
  background: rgba(255,61,110,0.25);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  box-shadow: 0 0 8px rgba(255,61,110,0.3);
}

.row-vol-knob {
  width: 30px;
  height: 30px;
}

/* ---------- Bottom Bar ---------- */
.bottom-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 24px;
}

.master-vol {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.master-vol .control-label { margin-bottom: 0; }

.genre-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: center;
}

.genre-info-title {
  font-family: 'Orbitron', monospace;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 4px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.genre-info-desc {
  font-size: 11px;
  color: var(--text-muted);
  font-style: italic;
}

.beat-counter {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-width: 60px;
}

.beat-num {
  font-family: 'Orbitron', monospace;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent-yellow);
  text-shadow: 0 0 12px rgba(255,215,0,0.5);
  display: block;
}

/* ---------- Visualizer ---------- */
.visualizer-bar {
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px;
  overflow: hidden;
}

#visualizer {
  width: 100%;
  height: 64px;
  display: block;
  border-radius: 6px;
}

/* ---------- Volume mini-knob (canvas based) ---------- */
.vol-knob-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.vol-knob-canvas {
  cursor: ns-resize;
  display: block;
}

.vol-knob-label {
  font-family: 'Orbitron', monospace;
  font-size: 7px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

/* ----------------------------------------------------------------
   Instrument icon colour dots
---------------------------------------------------------------- */
.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

/* ---------- Scrollbar ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  :root { --step-size: 30px; }
  .header { flex-direction: column; align-items: flex-start; }
  .drum-row { grid-template-columns: 120px 28px 1fr; }
}

@media (max-width: 600px) {
  :root { --step-size: 22px; --step-gap: 3px; }
  .drum-row { grid-template-columns: 90px 22px 1fr; }
  .instrument-name { font-size: 8px; }
}

/* ---------- Animations ---------- */
@keyframes step-flash {
  0%  { filter: brightness(2); }
  100%{ filter: brightness(1); }
}

.step-btn.just-hit {
  animation: step-flash 0.12s ease-out forwards;
}

/* ============================================================
   V2 NEW STYLES — Tabs, Recorder, Drums Bar, Synth
   ============================================================ */

/* ---------- Tab content ---------- */
.tab-content {
  display: none;
  flex-direction: column;
  gap: 18px;
}

.tab-content.active { display: flex; }

/* ---------- Drums controls bar ---------- */
.drums-controls-bar {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  backdrop-filter: blur(20px);
}

/* ---------- Recorder ---------- */
.record-section {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rec-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,61,110,0.3);
  border: 1px solid rgba(255,61,110,0.5);
  flex-shrink: 0;
  transition: all 0.3s;
}

.rec-dot.recording {
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary), 0 0 20px rgba(255,61,110,0.4);
  animation: rec-pulse 0.8s ease-in-out infinite alternate;
}

@keyframes rec-pulse {
  from { box-shadow: 0 0 6px var(--accent-primary); opacity: 0.7; }
  to   { box-shadow: 0 0 18px var(--accent-primary), 0 0 36px rgba(255,61,110,0.5); opacity: 1; }
}

.rec-btn {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.rec-btn:hover:not(:disabled) {
  background: rgba(255,61,110,0.15);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.rec-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.rec-btn.recording-active {
  background: rgba(255,61,110,0.2);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.download-btn:not(:disabled) {
  background: rgba(0,255,136,0.12);
  color: var(--accent-green);
  border-color: var(--accent-green);
}

/* ============================================================
   SYNTH TAB
   ============================================================ */

#synthTab {
  padding-bottom: 20px;
}

/* Preset row */
.synth-preset-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 20px;
  backdrop-filter: blur(20px);
}

.synth-section-label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Preset tabs */
.preset-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  flex: 1;
}

.preset-tab {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.preset-tab:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.04);
}

.preset-tab.active {
  background: linear-gradient(135deg, var(--accent-tertiary), var(--accent-primary));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 0 14px rgba(124,58,237,0.4);
}

/* Octave control */
.octave-control {
  display: flex;
  align-items: center;
  gap: 8px;
}

.octave-btns {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(5,6,8,0.8);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
}

.oct-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.15s, transform 0.1s;
  line-height: 1;
  padding: 0 2px;
}

.oct-btn:hover { color: var(--accent-secondary); transform: scale(1.2); }

.oct-val {
  font-family: 'Orbitron', monospace;
  font-size: 18px;
  font-weight: 700;
  color: var(--accent-secondary);
  min-width: 20px;
  text-align: center;
}

/* ARP */
.arp-toggle { display: flex; align-items: center; gap: 8px; }

.arp-btn {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}

.arp-btn.arp-on {
  background: rgba(255,215,0,0.15);
  color: var(--accent-yellow);
  border-color: var(--accent-yellow);
  box-shadow: 0 0 12px rgba(255,215,0,0.3);
}

/* ---- Synth main panel ---- */
.synth-panel {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(20px);
}

.synth-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  min-width: 200px;
  padding: 14px;
  background: rgba(5,6,8,0.5);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

/* OSC grid */
.synth-osc-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.osc-col {
  flex: 1;
  min-width: 140px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.osc-title {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
}

.wave-selector {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
}

.wave-btn {
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 5px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.12s;
}

.wave-btn:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
}

.wave-btn.active {
  background: rgba(124,58,237,0.25);
  border-color: var(--accent-tertiary);
  color: #c4a8ff;
  box-shadow: 0 0 8px rgba(124,58,237,0.3);
}

.osc2-controls {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.osc2-octave {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Knob row */
.knob-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}

/* Synth knob */
.synth-knob-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}

.synth-knob-canvas {
  cursor: ns-resize;
  display: block;
  border-radius: 50%;
  transition: filter 0.15s;
}

.synth-knob-canvas:hover { filter: brightness(1.2); }

.synth-knob-label {
  font-family: 'Orbitron', monospace;
  font-size: 7px;
  font-weight: 600;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

.synth-knob-val {
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  color: var(--accent-secondary);
  text-align: center;
}

/* Filter type btns */
.filter-type-btns {
  display: flex;
  gap: 4px;
  margin-bottom: 4px;
}

/* Effects row */
.synth-effects-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  backdrop-filter: blur(20px);
}

/* ---- Pad Bank ---- */
.pad-bank-wrap {
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  backdrop-filter: blur(20px);
}

.pad-hint {
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  letter-spacing: 0;
  margin-left: 10px;
}

.pad-bank {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.pad-btn {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  transition: all 0.08s ease;
  position: relative;
  overflow: hidden;
  min-height: 60px;
}

.pad-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, transparent 60%);
}

.pad-btn:nth-child(1)  { --pad-hue: 340; }
.pad-btn:nth-child(2)  { --pad-hue: 15; }
.pad-btn:nth-child(3)  { --pad-hue: 45; }
.pad-btn:nth-child(4)  { --pad-hue: 80; }
.pad-btn:nth-child(5)  { --pad-hue: 150; }
.pad-btn:nth-child(6)  { --pad-hue: 190; }
.pad-btn:nth-child(7)  { --pad-hue: 240; }
.pad-btn:nth-child(8)  { --pad-hue: 280; }
.pad-btn:nth-child(9)  { --pad-hue: 310; }
.pad-btn:nth-child(10) { --pad-hue: 0; }
.pad-btn:nth-child(11) { --pad-hue: 30; }
.pad-btn:nth-child(12) { --pad-hue: 60; }
.pad-btn:nth-child(13) { --pad-hue: 120; }
.pad-btn:nth-child(14) { --pad-hue: 170; }
.pad-btn:nth-child(15) { --pad-hue: 220; }
.pad-btn:nth-child(16) { --pad-hue: 260; }

.pad-btn:hover {
  background: hsla(var(--pad-hue, 200), 70%, 40%, 0.25);
  border-color: hsla(var(--pad-hue, 200), 70%, 60%, 0.5);
  transform: scale(1.03);
  color: var(--text-primary);
}

.pad-btn.pad-active {
  background: hsla(var(--pad-hue, 200), 80%, 50%, 0.4);
  border-color: hsla(var(--pad-hue, 200), 80%, 60%, 0.8);
  box-shadow: 0 0 20px hsla(var(--pad-hue, 200), 80%, 60%, 0.4),
              inset 0 0 12px hsla(var(--pad-hue, 200), 80%, 60%, 0.1);
  transform: scale(0.96);
  color: #fff;
}

.pad-note-label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  position: relative;
  z-index: 1;
}

/* ---- Piano Keyboard ---- */
.keyboard-wrap {
  background: rgba(10,12,18,0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  backdrop-filter: blur(20px);
  overflow-x: auto;
}

.keyboard-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.piano-keyboard {
  display: flex;
  position: relative;
  gap: 3px;
  height: 110px;
  padding-bottom: 4px;
  user-select: none;
  min-width: fit-content;
}

.piano-white {
  width: 48px;
  height: 110px;
  background: linear-gradient(180deg, #d8dff0 0%, #e8eeff 60%, #f0f4ff 100%);
  border: 1px solid rgba(0,0,0,0.3);
  border-radius: 0 0 8px 8px;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
  transition: all 0.05s;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3), inset 0 -2px 4px rgba(0,0,0,0.15);
}

.piano-white:hover {
  background: linear-gradient(180deg, #e0e8ff 0%, #f0f5ff 100%);
}

.piano-white.piano-active {
  background: linear-gradient(180deg, var(--accent-secondary) 0%, rgba(0,212,255,0.7) 100%);
  box-shadow: 0 0 20px rgba(0,212,255,0.5), inset 0 4px 8px rgba(0,0,0,0.2);
  transform: translateY(2px);
}

.piano-black {
  width: 30px;
  height: 65px;
  background: linear-gradient(180deg, #1a1f2e 0%, #0a0c12 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 0 0 6px 6px;
  cursor: pointer;
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 6px;
  transition: all 0.05s;
  flex-shrink: 0;
  margin: 0 -4px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.5), inset 0 -2px 4px rgba(0,0,0,0.3);
}

.piano-black:hover {
  background: linear-gradient(180deg, #24293a 0%, #141828 100%);
}

.piano-black.piano-active {
  background: linear-gradient(180deg, var(--accent-tertiary) 0%, rgba(124,58,237,0.7) 100%);
  box-shadow: 0 0 16px rgba(124,58,237,0.6), inset 0 4px 8px rgba(0,0,0,0.3);
  transform: translateY(1px);
}

.key-label {
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  font-weight: 700;
  color: rgba(0,0,0,0.4);
  pointer-events: none;
}

.piano-black .key-label {
  color: rgba(255,255,255,0.3);
  font-size: 7px;
}

.piano-white.piano-active .key-label { color: rgba(0,0,0,0.6); }
.piano-black.piano-active .key-label { color: rgba(255,255,255,0.7); }

/* ============================================================
   V3 — MIDI / Launchpad Styles
   ============================================================ */

/* MIDI section in header */
.midi-section {
  display: flex;
  align-items: center;
  gap: 8px;
}

.midi-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0,212,255,0.15);
  border: 1px solid rgba(0,212,255,0.3);
  flex-shrink: 0;
  transition: all 0.4s;
}

.midi-dot.connected {
  background: var(--accent-secondary);
  box-shadow: 0 0 10px var(--accent-secondary), 0 0 20px rgba(0,212,255,0.4);
  animation: midi-pulse 2s ease-in-out infinite alternate;
}

@keyframes midi-pulse {
  from { box-shadow: 0 0 6px var(--accent-secondary); opacity: 0.8; }
  to   { box-shadow: 0 0 16px var(--accent-secondary), 0 0 32px rgba(0,212,255,0.4); opacity: 1; }
}

.midi-connect-btn {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0,212,255,0.3);
  background: rgba(0,212,255,0.06);
  color: var(--accent-secondary);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.midi-connect-btn:hover {
  background: rgba(0,212,255,0.15);
  border-color: var(--accent-secondary);
  box-shadow: 0 0 12px rgba(0,212,255,0.2);
}

.midi-connect-btn.connected {
  background: rgba(0,212,255,0.12);
  border-color: var(--accent-secondary);
  color: var(--accent-secondary);
}

.midi-status-text {
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.midi-status-text.connected {
  color: var(--accent-secondary);
}

/* Launchpad Viewport Bar */
.lp-viewport-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 20px;
  background: rgba(0,212,255,0.04);
  border: 1px solid rgba(0,212,255,0.1);
  border-radius: var(--radius-md);
  font-size: 11px;
  opacity: 0.5;
  transition: opacity 0.3s;
}

.lp-viewport-bar.active {
  opacity: 1;
  background: rgba(0,212,255,0.07);
  border-color: rgba(0,212,255,0.25);
  box-shadow: 0 0 12px rgba(0,212,255,0.08);
}

.lp-viewport-label {
  display: flex;
  align-items: center;
  gap: 10px;
}

.lp-badge {
  font-family: 'Orbitron', monospace;
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--accent-secondary);
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 3px 8px;
  border-radius: 4px;
}

.lp-viewport-desc {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.lp-viewport-hint {
  font-size: 10px;
  color: var(--text-muted);
  font-style: italic;
}

/* Viewport overlay on drum rows */
.drum-row.lp-in-view {
  outline: 1px solid rgba(0,212,255,0.18);
  outline-offset: -1px;
  border-radius: var(--radius-sm);
}

.step-btn.lp-in-view {
  outline: 1px solid rgba(0,212,255,0.22);
  outline-offset: -1px;
}

/* ============================================================
   HARDWARE PANEL (rainbow button + compatibility list)
   ============================================================ */

.hardware-panel {
  display: none; /* hidden until connected */
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  background: rgba(10,12,18,0.9);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 14px 24px;
  backdrop-filter: blur(20px);
  animation: panel-appear 0.4s ease;
}

.hardware-panel.visible { display: flex; }

@keyframes panel-appear {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0);    }
}

.hardware-panel-left  { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.hardware-panel-right { display: flex; align-items: center; }

.hw-label {
  font-family: 'Orbitron', monospace;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Compatibility list */
.compat-list {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.compat-title {
  font-family: 'Orbitron', monospace;
  font-size: 7px;
  letter-spacing: 2px;
  color: var(--text-muted);
  white-space: nowrap;
}

.compat-tag {
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 20px;
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
}

.compat-tag.full {
  background: rgba(0,255,136,0.1);
  border: 1px solid rgba(0,255,136,0.3);
  color: var(--accent-green);
}

.compat-tag.likely {
  background: rgba(255,215,0,0.08);
  border: 1px solid rgba(255,215,0,0.25);
  color: var(--accent-yellow);
}

.compat-tag.no {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.07);
  color: var(--text-muted);
}

/* Rainbow Vomit button */
.rainbow-btn {
  font-family: 'Orbitron', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  background: linear-gradient(135deg, #ff0080, #ff8c00, #ffff00, #00ff88, #00d4ff, #7c3aed);
  background-size: 300% 300%;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,0.6);
  animation: rainbow-shift 3s ease infinite;
  transition: transform 0.1s, box-shadow 0.2s;
  white-space: nowrap;
}

.rainbow-btn:hover {
  transform: scale(1.04);
  box-shadow: 0 0 24px rgba(255,80,200,0.5), 0 0 48px rgba(100,200,255,0.3);
}

.rainbow-btn:active { transform: scale(0.97); }

.rainbow-btn.rainbow-on {
  animation: rainbow-shift 0.6s ease infinite;
  box-shadow: 0 0 20px rgba(255,80,200,0.6), 0 0 40px rgba(100,200,255,0.4);
}

@keyframes rainbow-shift {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}