/* ===================================
   Zone Control Styles
   =================================== */

/* Zone Selector */
.zone-selector {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid var(--color-border);
  padding-bottom: var(--spacing-sm);
}

.zone-tab {
  background: transparent;
  color: var(--color-text-secondary);
  border: none;
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  transition: all var(--transition-fast);
  min-height: 44px;
  position: relative;
}

.zone-tab:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
}

.zone-tab.active {
  background: var(--color-bg-secondary);
  color: var(--color-accent);
  font-weight: 700;
}

.zone-tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
}

/* Zone Controls Container */
.zone-controls {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.zone-controls.offline {
  opacity: 0.6;
  pointer-events: none;
}

/* Zone Header */
.zone-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.zone-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0;
}

.zone-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.875rem;
}

/* Control Row */
.control-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--spacing-md);
  align-items: center;
  margin-bottom: var(--spacing-lg);
}

.control-label {
  font-weight: 600;
  color: var(--color-text);
}

.control-value {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

/* Volume Control */
.volume-control {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex: 1;
}

.volume-display {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  min-width: 60px;
  text-align: right;
}

.volume-slider-container {
  flex: 1;
  position: relative;
}

.volume-progress {
  position: absolute;
  top: 50%;
  left: 0;
  height: 8px;
  background: var(--color-accent);
  border-radius: 4px;
  transform: translateY(-50%);
  pointer-events: none;
  opacity: 0.3;
  transition: width var(--transition-fast);
}

/* Input Selector */
.input-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--spacing-sm);
}

.input-button {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
  border: 2px solid var(--color-border);
  padding: var(--spacing-md);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  text-align: center;
}

.input-button:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-secondary);
}

.input-button.active {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
  font-weight: 700;
}

.input-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Party Mode Section */
.party-mode-section {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 2px solid var(--color-border);
}

.party-mode-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.party-mode-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
}

.party-mode-description {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

.party-mode-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-accent);
  color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(200, 245, 100, 0.7);
  }
  50% {
    opacity: 0.9;
    box-shadow: 0 0 0 8px rgba(200, 245, 100, 0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .zone-selector {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .zone-tab {
    white-space: nowrap;
    padding: var(--spacing-sm) var(--spacing-md);
  }
  
  .zone-controls {
    padding: var(--spacing-lg);
  }
  
  .control-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
  }
  
  .control-label {
    margin-bottom: var(--spacing-xs);
  }
  
  .input-selector {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }
  
  .volume-display {
    min-width: 50px;
  }
}

/* Loading State */
.zone-controls.loading {
  position: relative;
  min-height: 400px;
}

.zone-controls.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 40px;
  height: 40px;
  margin: -20px 0 0 -20px;
  border: 3px solid var(--color-bg-tertiary);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}