@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323:wght@400&display=swap');

:root {
  --bg: #0a0a12;
  --panel: #10101e;
  --border: #3a3a5e;
  --cyan: #00f5ff;
  --magenta: #ff00aa;
  --yellow: #ffee00;
  --green: #00ff88;
  --orange: #ff6600;
  --purple: #9900ff;
  --red: #ff4400;
  --white: #e8e8ff;
  --dim: #7a7a9e;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Press Start 2P', monospace;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Scanlines overlay */
body::before {
  content: '';
  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: 1000;
}

/* Grid background */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* HEADER */
header {
  text-align: center;
  padding: 30px 0 20px;
}

.logo {
  font-size: clamp(14px, 3vw, 22px);
  color: var(--cyan);
  text-shadow: 0 0 10px var(--cyan), 0 0 30px var(--cyan), 0 0 60px rgba(0,245,255,0.3);
  letter-spacing: 4px;
  animation: flicker 6s infinite;
  line-height: 1.6;
}

.subtitle {
  font-family: 'VT323', monospace;
  font-size: 22px;
  color: var(--magenta);
  margin-top: 8px;
  letter-spacing: 6px;
  text-shadow: 0 0 8px var(--magenta);
}

.insert-coin {
  font-family: 'VT323', monospace;
  font-size: 18px;
  color: var(--yellow);
  margin-top: 6px;
  animation: blink 1.2s step-end infinite;
  text-shadow: 0 0 6px var(--yellow);
}

@keyframes blink { 50% { opacity: 0; } }
@keyframes flicker {
  0%,95%,100% { opacity: 1; }
  96% { opacity: 0.8; }
  97% { opacity: 1; }
  98% { opacity: 0.6; }
  99% { opacity: 1; }
}

/* VISUALIZER */
.visualizer-wrapper {
  position: relative;
  margin: 20px 0 0;
  border: 2px solid var(--border);
  border-radius: 4px 4px 0 0;
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 0 20px rgba(0,245,255,0.1), inset 0 0 40px rgba(0,0,0,0.5);
}

#visualizer {
  width: 100%;
  height: 140px;
  display: block;
}

.vis-label {
  position: absolute;
  top: 8px;
  left: 12px;
  font-size: 7px;
  color: var(--dim);
  letter-spacing: 2px;
}

.vis-label span {
  color: var(--green);
  animation: blink 1s step-end infinite;
}

/* TRACKER PANEL */
.tracker-wrapper {
  position: relative;
  border: 2px solid var(--border);
  border-top: 1px solid var(--border);
  border-radius: 0 0 4px 4px;
  overflow: hidden;
  background: #08080f;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

#trackerCanvas {
  width: 100%;
  height: 200px;
  display: block;
  image-rendering: pixelated;
}

.tracker-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 12px;
  font-size: 7px;
  color: var(--dim);
  letter-spacing: 2px;
  background: #0e0e1e;
  border-bottom: 1px solid var(--border);
}
.tracker-label span span { color: var(--cyan); animation: blink 1s step-end infinite; }

.tracker-fs-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--white);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 5px 10px;
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 1px;
  transition: all 0.1s;
}
.tracker-fs-btn:hover { border-color: var(--cyan); color: var(--cyan); }

/* FULLSCREEN OVERLAY */
.tracker-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 900;
  background: #05050e;
  display: none;
  flex-direction: column;
}
.tracker-fullscreen.active { display: flex; }

.tracker-fullscreen #trackerCanvasFS {
  flex: 1;
  width: 100%;
  min-height: 0;
  display: block;
  image-rendering: pixelated;
}

.tracker-fs-bar {
  background: #0a0a18;
  border-bottom: 1px solid var(--border);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
}
.tracker-fs-bar .fs-title {
  font-size: 8px;
  color: var(--cyan);
  letter-spacing: 3px;
  text-shadow: 0 0 8px var(--cyan);
}
.tracker-fs-bar .fs-meta {
  font-family: 'VT323', monospace;
  font-size: 18px;
  color: var(--dim);
  letter-spacing: 2px;
  display: flex;
  gap: 20px;
}
.tracker-fs-bar .fs-meta b { color: var(--yellow); }

/* TRACK LIST */
.section-title {
  font-size: 8px;
  color: var(--dim);
  letter-spacing: 3px;
  margin-bottom: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

.tracks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.track-btn {
  background: var(--panel);
  border: 2px solid var(--border);
  color: var(--white);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 14px 12px;
  cursor: pointer;
  text-align: left;
  transition: all 0.1s;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  line-height: 1.8;
}

.track-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255,255,255,0.03));
}

.track-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0,245,255,0.2);
}

.track-btn.active {
  border-color: var(--cyan);
  box-shadow: 0 0 15px rgba(0,245,255,0.4), inset 0 0 15px rgba(0,245,255,0.05);
  color: var(--cyan);
}

.track-btn .track-icon { font-size: 16px; display: block; margin-bottom: 8px; }
.track-btn .track-name { display: block; margin-bottom: 4px; }
.track-btn .track-genre {
  font-size: 7px;
  color: var(--dim);
  letter-spacing: 1px;
}

.track-btn.active .track-genre { color: var(--magenta); }

/* Colored accents per track */
.track-btn[data-color="cyan"] { --tc: var(--cyan); }
.track-btn[data-color="magenta"] { --tc: var(--magenta); }
.track-btn[data-color="yellow"] { --tc: var(--yellow); }
.track-btn[data-color="green"] { --tc: var(--green); }
.track-btn[data-color="orange"] { --tc: var(--orange); }
.track-btn[data-color="purple"] { --tc: var(--purple); }
.track-btn[data-color="red"] { --tc: var(--red); }

.track-btn:hover { border-color: var(--tc, var(--cyan)); color: var(--tc, var(--cyan)); }
.track-btn:hover .track-genre { color: var(--tc, var(--cyan)); }

/* CONTROLS */
.controls-panel {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

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

.btn {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--white);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.1s;
  border-radius: 2px;
  letter-spacing: 1px;
}

.btn:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 10px rgba(0,245,255,0.3); }
.btn.primary { border-color: var(--green); color: var(--green); }
.btn.primary:hover { background: var(--green); color: var(--bg); box-shadow: 0 0 20px rgba(0,255,136,0.4); }
.btn.danger { border-color: var(--magenta); color: var(--magenta); }
.btn.danger:hover { background: var(--magenta); color: var(--bg); }
.btn:active { transform: scale(0.96); }

.now-playing {
  font-family: 'VT323', monospace;
  font-size: 20px;
  color: var(--yellow);
  text-shadow: 0 0 8px var(--yellow);
  letter-spacing: 2px;
  flex: 1;
  min-width: 160px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* Sliders */
.sliders-row {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: center;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 120px;
}

.slider-label {
  font-size: 6px;
  color: var(--dim);
  letter-spacing: 2px;
  display: flex;
  justify-content: space-between;
}

.slider-label span { color: var(--cyan); }

input[type=range] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--cyan);
  border-radius: 2px;
  box-shadow: 0 0 8px var(--cyan);
  cursor: pointer;
}

input[type=range]:hover::-webkit-slider-thumb { box-shadow: 0 0 16px var(--cyan); }

/* STATUS BAR */
.status-bar {
  background: #050510;
  border: 1px solid var(--border);
  padding: 8px 14px;
  font-family: 'VT323', monospace;
  font-size: 16px;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
  border-radius: 2px;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.status-bar .status-item { display: flex; gap: 8px; align-items: center; }
.status-bar .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dim); display: inline-block; }
.status-bar .dot.active { background: var(--green); box-shadow: 0 0 6px var(--green); animation: pulse 1s ease-in-out infinite; }

@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.pixel-char canvas { image-rendering: pixelated; }

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  font-size: 6px;
  color: var(--dim);
  letter-spacing: 2px;
  line-height: 2.5;
}

/* STEP SEQUENCER */
.sequencer-panel {
  background: var(--panel);
  border: 2px solid var(--border);
  border-radius: 4px;
  padding: 16px;
  margin-bottom: 20px;
}

.seq-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.seq-tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--dim);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 8px 14px;
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 1px;
  transition: all 0.1s;
}

.seq-tab:hover { border-color: var(--cyan); color: var(--cyan); }
.seq-tab[data-ch="melody"].active { border-color: #00f5ff; color: #00f5ff; background: rgba(0,245,255,0.08); }
.seq-tab[data-ch="bass"].active   { border-color: #00ff88; color: #00ff88; background: rgba(0,255,136,0.08); }
.seq-tab[data-ch="saw"].active    { border-color: #ff00aa; color: #ff00aa; background: rgba(255,0,170,0.08); }
.seq-tab[data-ch="drums"].active  { border-color: #ffee00; color: #ffee00; background: rgba(255,238,0,0.08); }

.seq-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.seq-label {
  font-size: 6px;
  color: var(--dim);
  letter-spacing: 2px;
}

.seq-val {
  font-family: 'VT323', monospace;
  font-size: 18px;
  color: var(--cyan);
  min-width: 36px;
}

.seq-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 6px 8px;
  border-radius: 2px;
  cursor: pointer;
}

.seq-name-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 6px 8px;
  border-radius: 2px;
  width: 140px;
  letter-spacing: 1px;
}

.seq-name-input::placeholder { color: var(--dim); }

.seq-grid-wrapper {
  display: flex;
  gap: 0;
  overflow-x: auto;
  margin-bottom: 4px;
}

.seq-row-labels {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  width: 38px;
}

.seq-row-label {
  height: 18px;
  line-height: 18px;
  font-size: 5px;
  color: var(--dim);
  text-align: right;
  padding-right: 4px;
  font-family: 'Press Start 2P', monospace;
}

.seq-grid {
  display: grid;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.seq-cell {
  min-width: 16px;
  height: 18px;
  background: #0c0c18;
  border: 1px solid #1a1a2e;
  cursor: pointer;
  transition: background 0.05s;
  border-radius: 1px;
}

.seq-cell.beat-start {
  border-left: 1px solid #2a2a4a;
}

.seq-cell:hover {
  background: rgba(0,245,255,0.15);
  border-color: var(--cyan);
}

.seq-cell.on {
  background: var(--seq-color, var(--cyan));
  box-shadow: inset 0 0 4px rgba(255,255,255,0.3), 0 0 4px var(--seq-color, var(--cyan));
}

.seq-cell.playing {
  border-color: rgba(255,255,255,0.6);
  box-shadow: 0 0 8px rgba(255,255,255,0.3);
}

.seq-step-numbers {
  display: flex;
  margin-left: 38px;
  gap: 1px;
}

.seq-step-num {
  flex: 1;
  text-align: center;
  font-size: 5px;
  color: #1e1e30;
  font-family: 'Press Start 2P', monospace;
  min-width: 16px;
}

.seq-step-num.active-step {
  color: var(--yellow);
}

.seq-status {
  font-family: 'VT323', monospace;
  font-size: 16px;
  color: var(--green);
  text-shadow: 0 0 6px var(--green);
  margin-top: 8px;
  min-height: 20px;
  letter-spacing: 2px;
}

/* SEQUENCER FULLSCREEN */
.sequencer-panel.seq-fullscreen {
  position: fixed;
  inset: 0;
  z-index: 900;
  margin: 0;
  border-radius: 0;
  border: none;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sequencer-panel.seq-fullscreen .seq-tabs { flex-shrink: 0; }
.sequencer-panel.seq-fullscreen .seq-controls { flex-shrink: 0; }
.sequencer-panel.seq-fullscreen .seq-voice-controls { flex-shrink: 0; }
.sequencer-panel.seq-fullscreen .seq-step-numbers { flex-shrink: 0; margin-bottom: 4px; }
.sequencer-panel.seq-fullscreen .seq-status { flex-shrink: 0; }
.sequencer-panel.seq-fullscreen .seq-grid-wrapper {
  flex: 1;
  min-height: 0;
  overflow: hidden;
}
.sequencer-panel.seq-fullscreen .seq-row-labels {
  display: flex;
  flex-direction: column;
  height: 100%;
}
.sequencer-panel.seq-fullscreen .seq-row-label {
  flex: 1;
  height: auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  line-height: 1;
}
.sequencer-panel.seq-fullscreen .seq-grid {
  height: 100%;
  grid-auto-rows: 1fr;
}
.sequencer-panel.seq-fullscreen .seq-cell {
  height: auto;
  min-height: 0;
}

.seq-voice-controls {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  border-top: 1px solid var(--border);
  padding-top: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  min-height: 44px;
}
.voice-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 80px;
}
.voice-group label {
  font-family: 'Press Start 2P', monospace;
  font-size: 6px;
  color: var(--dim);
  letter-spacing: 2px;
}
.voice-group input[type=range] {
  width: 80px;
}
.voice-group .voice-val {
  font-family: 'VT323', monospace;
  font-size: 16px;
  color: var(--cyan);
  min-width: 32px;
  text-align: right;
}
.voice-group .voice-row {
  display: flex;
  align-items: center;
  gap: 6px;
}
.voice-toggle {
  font-family: 'Press Start 2P', monospace;
  font-size: 7px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--dim);
  cursor: pointer;
  border-radius: 2px;
  letter-spacing: 1px;
  transition: all 0.15s;
}
.voice-toggle.active {
  color: var(--yellow);
  border-color: var(--yellow);
  text-shadow: 0 0 6px var(--yellow);
  box-shadow: 0 0 8px rgba(255,238,0,0.2);
}

/* Responsive */
@media (max-width: 600px) {
  .logo { font-size: 11px; }
  .tracks-grid { grid-template-columns: 1fr 1fr; }
  .sliders-row { flex-direction: column; }
  .seq-controls { gap: 6px; }
  .seq-name-input { width: 100px; }
}