/**
 * VibeCharts CSS - Styling for Advanced Charts
 * Version 1.1.0
 */

/* Base Container Styles */
.vibechart-container {
  position: relative;
  width: 100%;
  padding: 20px;
  box-sizing: border-box;
  transition: all 0.3s ease;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  overflow: hidden;
}

.vibechart-container canvas {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

/* Loading Placeholder Styles */
.vibechart-placeholder {
  width: 100%;
  height: 100%;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s ease;
}

.placeholder-shimmer {
  width: 100%;
  height: 100%;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.placeholder-title {
  width: 200px;
  height: 24px;
  background: linear-gradient(90deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.1) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
  margin: 0 auto;
}

.placeholder-chart {
  flex: 1;
  display: flex;
  align-items: flex-end;
  justify-content: space-around;
  gap: 10px;
  padding: 20px 0;
}

.placeholder-bar {
  flex: 1;
  background: linear-gradient(90deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.1) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
  min-width: 40px;
}

.placeholder-legend {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

.placeholder-legend-item {
  width: 120px;
  height: 16px;
  background: linear-gradient(90deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.2) 50%, rgba(255,255,255,0.1) 100%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

/* Dark theme placeholder */
.vibechart-dark .placeholder-title,
.vibechart-dark .placeholder-bar,
.vibechart-dark .placeholder-legend-item {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 100%);
  background-size: 200% 100%;
}

/* Lite theme placeholder */
.vibechart-lite .placeholder-title,
.vibechart-lite .placeholder-bar,
.vibechart-lite .placeholder-legend-item {
  background: linear-gradient(90deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.05) 100%);
  background-size: 200% 100%;
}

/* Theme Styles */
.vibechart-lite {
  background-color: #ffffff;
  color: #333333;
  border: 1px solid #e0e0e0;
}

.vibechart-dark {
  background-color: #1a1a2e;
  color: #eeeeee;
  border: 1px solid #2a2a3e;
}

.vibechart-gradient {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #ffffff;
  border: none;
}

.vibechart-glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

/* External Legend */
.vibechart-legend-external {
  font-family: 'Inter', Arial, sans-serif;
}

/* Style Variants */
.vibechart-sharp {
  border-radius: 0;
}

.vibechart-default {
  border-radius: 8px;
}

.vibechart-soft {
  border-radius: 18px;
}

.vibechart-rounded {
  border-radius: 51px;
}

/* Chart Title */
.vibechart-title {
  font-size: 24px;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  padding: 10px;
}

/* Legend Styles */
.vibechart-legend {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.9);
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.vibechart-dark .vibechart-legend {
  background: rgba(26, 26, 46, 0.9);
  color: #eeeeee;
}

.vibechart-legend-item {
  display: flex;
  align-items: center;
  margin-bottom: 8px;
  font-size: 14px;
}

.vibechart-legend-color {
  width: 20px;
  height: 20px;
  margin-right: 10px;
  border-radius: 4px;
}

/* Tooltip Styles */
.vibechart-tooltip {
  position: absolute;
  background: rgba(0, 0, 0, 0.85);
  color: white;
  padding: 10px 15px;
  border-radius: 6px;
  font-size: 13px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 1000;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.vibechart-tooltip.active {
  opacity: 1;
}

.vibechart-tooltip::before {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid rgba(0, 0, 0, 0.85);
}

/* Axis Labels */
.vibechart-axis-label {
  font-size: 12px;
  fill: currentColor;
  font-weight: 500;
}

.vibechart-axis-label.x-axis {
  text-anchor: middle;
}

.vibechart-axis-label.y-axis {
  text-anchor: end;
}

/* Grid Lines */
.vibechart-grid-line {
  stroke: currentColor;
  stroke-opacity: 0.1;
  stroke-dasharray: 5, 5;
}

/* Animation Classes */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    transform: scale(0);
  }
  to {
    transform: scale(1);
  }
}

@keyframes slideInLeft {
  from {
    transform: translateX(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(20px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.vibechart-animated {
  animation: fadeIn 0.6s ease;
}

/* Loading State */
.vibechart-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.vibechart-spinner {
  border: 4px solid rgba(0, 0, 0, 0.1);
  border-radius: 50%;
  border-top: 4px solid #667eea;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 0 auto 10px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
  .vibechart-container {
    padding: 15px;
  }
  
  .vibechart-title {
    font-size: 18px;
  }
  
  .vibechart-legend {
    position: static;
    margin-top: 15px;
    font-size: 12px;
  }
  
  .vibechart-legend-item {
    font-size: 12px;
  }
  
  .vibechart-legend-color {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 480px) {
  .vibechart-container {
    padding: 10px;
    border-radius: 8px;
  }
  
  .vibechart-title {
    font-size: 16px;
  }
  
  .vibechart-legend {
    padding: 10px;
  }
  
  .vibechart-legend-item {
    font-size: 11px;
    margin-bottom: 6px;
  }
  
  .vibechart-legend-color {
    width: 14px;
    height: 14px;
    margin-right: 8px;
  }
  
  .vibechart-soft {
    border-radius: 12px;
  }
  
  .vibechart-rounded {
    border-radius: 30px;
  }
}

/* High DPI / Retina Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .vibechart-container canvas {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Hover Effects */
.vibechart-container:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.vibechart-dark:hover {
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
}

.vibechart-glass:hover {
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.45);
}

/* Interactive Elements */
.vibechart-interactive {
  cursor: pointer;
  transition: all 0.2s ease;
}

.vibechart-interactive:hover {
  opacity: 0.85;
  transform: scale(1.05);
}

.vibechart-interactive:active {
  transform: scale(0.98);
}

/* Data Point Styles */
.vibechart-datapoint {
  transition: all 0.2s ease;
}

.vibechart-datapoint:hover {
  filter: brightness(1.2);
  transform: scale(1.1);
}

/* Chart-Specific Styles */
.vibechart-bar-label {
  font-size: 11px;
  font-weight: 600;
  text-anchor: middle;
}

.vibechart-pie-slice {
  transition: transform 0.2s ease;
  transform-origin: center;
}

.vibechart-pie-slice:hover {
  transform: scale(1.05);
}

/* Gradient Definitions */
.vibechart-gradient-purple {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.vibechart-gradient-blue {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.vibechart-gradient-green {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.vibechart-gradient-pink {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.vibechart-gradient-orange {
  background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

/* Accessibility */
.vibechart-container:focus {
  outline: 2px solid #667eea;
  outline-offset: 4px;
}

.vibechart-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Print Styles */
@media print {
  .vibechart-container {
    break-inside: avoid;
    page-break-inside: avoid;
  }
  
  .vibechart-tooltip {
    display: none;
  }
  
  .vibechart-glass {
    background: white;
    border: 1px solid #e0e0e0;
  }
}

/* Custom Scrollbar for Legend */
.vibechart-legend::-webkit-scrollbar {
  width: 6px;
}

.vibechart-legend::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 3px;
}

.vibechart-legend::-webkit-scrollbar-thumb {
  background: rgba(102, 126, 234, 0.5);
  border-radius: 3px;
}

.vibechart-legend::-webkit-scrollbar-thumb:hover {
  background: rgba(102, 126, 234, 0.7);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  .vibechart-lite {
    background-color: #1a1a2e;
    color: #eeeeee;
    border-color: #2a2a3e;
  }
  
  .vibechart-legend {
    background: rgba(26, 26, 46, 0.95);
    color: #eeeeee;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  .vibechart-container,
  .vibechart-animated,
  .vibechart-interactive,
  .vibechart-pie-slice,
  .vibechart-datapoint {
    animation: none !important;
    transition: none !important;
  }
}

/* Focus Visible (Accessibility) */
.vibechart-container:focus-visible {
  outline: 3px solid #667eea;
  outline-offset: 4px;
}