/**
 * VU Meter Styling
 * Industrial-grade VU meters with realistic needle animation
 */

.vu-meter {
  width: 120px;
  height: 120px;
  background: radial-gradient(circle at 50% 50%, #2a2a2a, #1a1a1a);
  border-radius: 50%;
  position: relative;
  box-shadow: 
    inset 0 0 20px rgba(0, 0, 0, 0.8),
    inset 0 2px 4px rgba(255, 255, 255, 0.1),
    0 4px 10px rgba(0, 0, 0, 0.4);
  border: 3px solid #333;
  overflow: hidden;
}

/* VU Meter Face Markings */
.vu-meter::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80%;
  height: 80%;
  transform: translate(-50%, -50%);
  background: 
    linear-gradient(90deg, transparent 49%, rgba(255, 255, 255, 0.1) 49%, rgba(255, 255, 255, 0.1) 51%, transparent 51%),
    linear-gradient(0deg, transparent 49%, rgba(255, 255, 255, 0.1) 49%, rgba(255, 255, 255, 0.1) 51%, transparent 51%);
  pointer-events: none;
}

/* VU Meter Scale Markings */
.vu-meter::after {
  content: '';
  position: absolute;
  top: 10%;
  left: 10%;
  right: 10%;
  bottom: 10%;
  border-radius: 50%;
  border: 1px solid rgba(127, 255, 0, 0.3);
  box-shadow: 0 0 10px rgba(127, 255, 0, 0.2);
  pointer-events: none;
}

/* VU Meter Needle */
.vu-meter-needle {
  width: 3px;
  height: 50%;
  background: linear-gradient(to top, #ff0000, #ff6666);
  position: absolute;
  bottom: 50%;
  left: 50%;
  transform-origin: bottom center;
  transform: translateX(-50%) rotate(-45deg);
  transition: transform 0.1s ease-out;
  border-radius: 2px 2px 0 0;
  box-shadow: 
    0 0 8px rgba(255, 0, 0, 0.6),
    inset 0 -2px 4px rgba(0, 0, 0, 0.4);
  z-index: 10;
}

/* Needle Tip Glow */
.vu-meter-needle::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 8px;
  height: 8px;
  background: #ff0000;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 10px #ff0000, 0 0 20px rgba(255, 0, 0, 0.4);
}

/* Center Pivot Point */
.vu-meter-needle::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 8px;
  height: 8px;
  background: #444;
  border: 2px solid #666;
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 
    inset 0 1px 2px rgba(255, 255, 255, 0.3),
    0 2px 4px rgba(0, 0, 0, 0.4);
}

/* Glass Cover Effect */
.vu-meter-glass {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.1) 0%, 
    transparent 50%, 
    rgba(0, 0, 0, 0.2) 100%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 20;
}

/* Responsive Sizing */
@media (max-width: 768px) {
  .vu-meter {
    width: 80px;
    height: 80px;
  }
  
  .vu-meter-needle {
    width: 2px;
  }
}

/* Animation for needle movement */
@keyframes needle-bounce {
  0%, 100% { transform: translateX(-50%) rotate(var(--rotation, -45deg)); }
  50% { transform: translateX(-50%) rotate(calc(var(--rotation, -45deg) + 2deg)); }
}

.vu-meter-needle.animated {
  animation: needle-bounce 2s ease-in-out infinite;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .vu-meter-needle {
    transition: none;
  }
  
  .vu-meter-needle.animated {
    animation: none;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .vu-meter {
    border-width: 4px;
    border-color: #FFF;
  }
  
  .vu-meter-needle {
    background: #FF0000;
    width: 4px;
  }
}

/* VU Meter Container Layout */
.vu-meter-container {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 10px;
}

.vu-meter-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #7FFF00;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-shadow: 0 0 8px rgba(127, 255, 0, 0.6);
}