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

:root {
  --bg: #0a0a1a;
  --bg2: #0f0f2a;
  --cyan: #00f0ff;
  --magenta: #ff2d95;
  --green: #39ff14;
  --gold: #ffd700;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --text: #c8d6e5;
  --text-dim: #576574;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  overflow-x: hidden;
  min-height: 100vh;
}

body {
  background: 
    radial-gradient(ellipse at 20% 0%, rgba(0,240,255,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(255,45,149,0.06) 0%, transparent 50%),
    var(--bg);
}

#app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 12px;
}

/* HEADER */
header {
  text-align: center;
  padding: 20px 0 10px;
  position: relative;
}

.title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(1.8rem, 5vw, 3.2rem);
  background: linear-gradient(135deg, var(--cyan), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  letter-spacing: 2px;
  line-height: 1.2;
}

.berry {
  -webkit-text-fill-color: initial;
  font-size: 0.8em;
}

.subtitle {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-top: 4px;
}

#formula-bar {
  margin-top: 10px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 6px 16px;
  font-size: 0.8rem;
}

.formula {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-dim);
}

.hl-fc { color: var(--cyan); font-weight: 700; }
.hl-fm { color: var(--magenta); font-weight: 700; }
.hl-m { color: var(--gold); font-weight: 700; }

#info-btn {
  background: var(--glass);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  width: 24px; height: 24px;
  border-radius: 50%;
  cursor: pointer;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  transition: all 0.3s;
}

#info-btn:hover {
  background: var(--cyan);
  color: var(--bg);
}

#info-tooltip {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  width: min(400px, 90vw);
  background: rgba(10,10,30,0.95);
  border: 1px solid var(--cyan);
  border-radius: 12px;
  padding: 16px;
  font-size: 0.75rem;
  line-height: 1.6;
  z-index: 100;
  box-shadow: 0 0 30px rgba(0,240,255,0.15);
}

#info-tooltip.hidden { display: none; }

#close-info {
  margin-top: 10px;
  background: var(--cyan);
  color: var(--bg);
  border: none;
  padding: 4px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 0.7rem;
}

/* PRESETS */
#presets-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 10px 0;
}

.preset-btn {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  color: var(--text);
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.5px;
  transition: all 0.3s;
  white-space: nowrap;
}

.preset-btn:hover {
  border-color: var(--cyan);
  background: rgba(0,240,255,0.08);
  color: var(--cyan);
}

/* MAIN LAYOUT */
#main-layout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

/* CONTROLS */
#controls {
  width: 260px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.control-group {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 12px 14px;
  backdrop-filter: blur(8px);
}

.control-group label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 1px;
  margin-bottom: 8px;
  color: var(--text-dim);
}

.control-group label span {
  font-weight: 700;
  font-size: 0.85rem;
}

/* SLIDERS */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.06);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan), 0 0 20px rgba(0,240,255,0.3);
  cursor: pointer;
  transition: box-shadow 0.2s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 15px var(--cyan), 0 0 30px rgba(0,240,255,0.5);
}

input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  border: none;
  cursor: pointer;
}

#mod-freq::-webkit-slider-thumb { background: var(--magenta); box-shadow: 0 0 10px var(--magenta); }
#mod-freq::-moz-range-thumb { background: var(--magenta); box-shadow: 0 0 10px var(--magenta); }
#mod-depth::-webkit-slider-thumb { background: var(--gold); box-shadow: 0 0 10px var(--gold); }
#mod-depth::-moz-range-thumb { background: var(--gold); box-shadow: 0 0 10px var(--gold); }

/* WAVE BUTTONS */
.wave-select {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}

.wave-btn {
  flex: 1;
  padding: 4px 2px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  transition: all 0.2s;
}

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

.wave-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,240,255,0.08);
}

#mod-wave-select .wave-btn.active {
  border-color: var(--magenta);
  color: var(--magenta);
  background: rgba(255,45,149,0.08);
}

/* PLAY BUTTON */
.play-btn {
  width: 100%;
  padding: 14px;
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 3px;
  background: linear-gradient(135deg, rgba(0,240,255,0.15), rgba(255,45,149,0.15));
  border: 2px solid var(--cyan);
  color: var(--cyan);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.play-btn:hover {
  background: linear-gradient(135deg, rgba(0,240,255,0.25), rgba(255,45,149,0.25));
}

.play-btn.active {
  border-color: var(--magenta);
  color: var(--magenta);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 10px rgba(255,45,149,0.3); }
  50% { box-shadow: 0 0 25px rgba(255,45,149,0.6), 0 0 50px rgba(255,45,149,0.2); }
}

#unison-badge {
  text-align: center;
  font-size: 0.8rem;
  color: var(--gold);
  animation: bounce-in 0.4s ease;
}

#unison-badge.hidden { display: none; }

@keyframes bounce-in {
  0% { transform: scale(0); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* CANVAS AREA */
#canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

#canvas {
  width: 100%;
  border-radius: 12px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--glass-border);
}

#spectrum-container {
  position: relative;
  border-radius: 12px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--glass-border);
  overflow: hidden;
}

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

#spectrum-label {
  position: absolute;
  top: 6px;
  right: 10px;
  font-size: 0.55rem;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

#spectrum-hover {
  position: absolute;
  background: rgba(0,0,0,0.85);
  border: 1px solid var(--cyan);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 0.6rem;
  color: var(--cyan);
  pointer-events: none;
}

#spectrum-hover.hidden { display: none; }

/* FOOTER */
footer {
  text-align: center;
  padding: 20px 0 12px;
  font-size: 0.6rem;
  color: var(--text-dim);
  display: flex;
  justify-content: center;
  gap: 12px;
  align-items: center;
}

footer a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover { color: var(--magenta); }

/* RESPONSIVE */
@media (max-width: 768px) {
  #main-layout {
    flex-direction: column;
  }

  #controls {
    width: 100%;
    min-width: 0;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .control-group {
    flex: 1;
    min-width: calc(50% - 6px);
  }

  .play-btn {
    min-width: 100%;
  }

  #canvas-area {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .control-group {
    min-width: 100%;
  }
  
  .preset-btn {
    font-size: 0.58rem;
    padding: 5px 10px;
  }
}