:root {
  --bg: #0f1012;
  --panel: #18191c;
  --surface: #202226;
  --accent: #00f0ff; /* Tu Cyan Original */
  --accent-glow: rgba(0, 240, 255, 0.2);
  --secondary: #bd00ff;
  --text-main: #e0e6ed;
  --text-muted: #6b7280;
  --danger: #ff2a2a;
  --border: 1px solid rgba(255, 255, 255, 0.08);
  --radius: 6px;
}

* { box-sizing: border-box; }

body {
  background-color: var(--bg);
  color: var(--text-main);
  font-family: 'Inter', system-ui, sans-serif;
  margin: 0;
  padding-bottom: 40px;
}

/* --- HEADER --- */
header {
  background: #08080a;
  border-bottom: var(--border);
  padding: 15px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 10px; }
.led-indicator { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 8px var(--accent); }
header h1 { margin: 0; font-size: 1.2rem; font-weight: 700; letter-spacing: 1px; color: #fff; }
header h1 span { color: var(--text-muted); font-weight: 400; margin-left: 5px; }

.user-section {
  display: flex;
  align-items: center;
  gap: 15px;
}

.user-email {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.logout-btn {
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text-muted);
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  transition: 0.3s;
  font-weight: 600;
  text-transform: uppercase;
}

.logout-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}


/* --- LAYOUT PRINCIPAL --- */
main {
  max-width: 1200px;
  margin: 30px auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.box {
  background: var(--panel);
  border: var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.module-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid rgba(0,0,0,0.2);
  padding-bottom: 12px;
  margin-bottom: 20px;
}

h3 { margin: 0; font-size: 0.9rem; letter-spacing: 1px; color: var(--text-main); text-transform: uppercase; }
.module-sub { color: var(--text-muted); font-size: 0.75rem; margin-left: 8px; }

/* --- TOP SECTION (Inputs + Visuals) --- */
.top-section {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 20px;
}

/* Controls Box */
.controls { display: flex; flex-direction: column; gap: 20px; justify-content: center; }
.file-btn {
  background: var(--surface);
  border: 1px dashed var(--text-muted);
  color: var(--text-main);
  padding: 15px;
  text-align: center;
  border-radius: var(--radius);
  cursor: pointer;
  transition: 0.2s;
  display: block;
}
.file-btn:hover { border-color: var(--accent); color: var(--accent); }
.file-btn input { display: none; }

.lcd-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  background: #000;
  padding: 8px;
  border-radius: 4px;
  border: 1px solid #333;
  display: block;
  text-align: center;
  margin-top: 10px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.transport { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 5px; }
.transport button {
  background: #252525;
  border: none;
  color: #888;
  padding: 10px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 4px;
  transition: 0.2s;
}
.transport button:hover:not(:disabled) { background: #333; color: #fff; }
.transport button:disabled { opacity: 0.3; cursor: not-allowed; }

/* Visuals Box */
.visuals { padding: 0; overflow: hidden; display: flex; flex-direction: column; }
.visual-header { padding: 15px 20px; background: #111; border-bottom: var(--border); display: flex; justify-content: space-between; align-items: center; }
.visual-header small { color: #555; font-size: 0.7rem; text-transform: uppercase; }
.canvas-container { flex-grow: 1; background: #000; position: relative; height: 180px; }
#spectrumCanvas { width: 100%; height: 100%; display: block; }

/* --- RACK GRID (EQ, Comp, Limit) --- */
.rack-grid {
  display: grid;
  grid-template-columns: 2fr 1.2fr 1fr; /* Asimetría balanceada original */
  gap: 20px;
}

/* --- 1. EQ MODULE --- */
.graphic-eq-container {
  display: grid;
  grid-template-columns: repeat(10, 1fr); /* 10 columnas exactas */
  gap: 4px;
  height: 200px;
}

.eq-band {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.2);
  padding: 10px 0;
  border-radius: 4px;
}

.freq-label { font-size: 0.65rem; color: #666; font-family: 'JetBrains Mono'; margin-top: 5px; }
.gain-val { font-size: 0.7rem; color: var(--accent); font-family: 'JetBrains Mono'; margin-bottom: 5px; }

/* Wrapper para rotar slider */
.slider-vertical-wrapper {
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

input[type=range] {
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
}

/* Estilo Slider EQ (Vertical) */
.eq-band input[type=range] {
  width: 100px; /* Largo físico antes de rotar */
  height: 4px;
  background: #333;
  transform: rotate(-90deg);
  border-radius: 2px;
}
.eq-band input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 12px; width: 24px;
  background: #aaa;
  border-radius: 2px;
  box-shadow: 0 0 5px rgba(0,0,0,0.5);
  margin-top: -4px; /* Centrar */
}
.eq-band input[type=range]:hover::-webkit-slider-thumb { background: #fff; }

.utility-btn {
  background: transparent; border: 1px solid #444; color: #888;
  font-size: 0.7rem; padding: 2px 8px; border-radius: 3px; cursor: pointer;
}
.utility-btn:hover { border-color: #666; color: #ccc; }

/* --- 2. DYNAMICS & 3. LIMITER --- */
.knobs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px 10px;
}

.control-group { display: flex; flex-direction: column; gap: 8px; }
.control-group label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* Sliders Horizontales (Knob style) */
.knobs-grid input[type=range], .limit-controls input[type=range] {
  width: 100%;
  height: 4px;
  background: #333;
  border-radius: 2px;
}
.knobs-grid input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 16px; width: 16px;
  border-radius: 50%;
  background: var(--secondary);
  border: 2px solid #18191c;
  box-shadow: 0 0 8px var(--secondary);
  margin-top: -6px;
}

.lcd-value {
  font-family: 'JetBrains Mono';
  font-size: 0.85rem;
  color: #fff;
  background: rgba(0,0,0,0.3);
  padding: 4px 8px;
  border-radius: 3px;
  align-self: flex-start;
  min-width: 60px;
  text-align: right;
  border-left: 2px solid var(--secondary);
}

/* Limiter Specifics */
.danger-group input[type=range]::-webkit-slider-thumb {
  background: var(--danger);
  box-shadow: 0 0 8px var(--danger);
}
.danger-group .lcd-value { border-color: var(--danger); color: #ffcccc; }

.limit-controls {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}

.primary-btn {
  background: var(--accent);
  color: #000;
  border: none;
  padding: 12px;
  width: 100%;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 0 15px var(--accent-glow);
}
.primary-btn:hover:not(:disabled) { filter: brightness(1.1); }
.primary-btn:disabled { background: #333; color: #555; box-shadow: none; cursor: not-allowed; }

.status-text { font-size: 0.7rem; color: #555; text-align: center; margin-bottom: 5px; font-family: 'JetBrains Mono'; }

/* Responsive adjustments */
@media (max-width: 900px) {
  .top-section { grid-template-columns: 1fr; }
  .rack-grid { grid-template-columns: 1fr; }
  .graphic-eq-container { height: 160px; }
}

/* --- NUEVO CSS PARA BOTONES BYPASS (NO CAMBIA NADA MÁS) --- */
.header-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.power-btn {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1px solid #444;
  background: transparent;
  color: #444;
  cursor: pointer;
  font-size: 0.8rem;
  display: flex; align-items: center; justify-content: center;
  transition: 0.2s;
}

.power-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 240, 255, 0.1);
  box-shadow: 0 0 8px var(--accent-glow);
}

/* Efecto de apagado para el contenido del módulo */
.module-off .graphic-eq-container,
.module-off .knobs-grid,
.module-off .limit-controls {
  opacity: 0.3;
  filter: grayscale(100%);
  pointer-events: none; /* Deshabilita el control si está en bypass */
  transition: 0.3s;
}