/* GPU Charts - Styles */

:root {
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f3f4;
  --text-primary: #1a1a1a;
  --text-secondary: #5f6368;
  --text-muted: #9aa0a6;
  --border-color: #e8eaed;
  --accent: #1a73e8;
  --accent-hover: #1557b0;
  --danger: #ea4335;
  --success: #34a853;
  --warning: #fbbc04;
  --chart-bg: #fafafa;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.05);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

.dark {
  --bg-primary: #1a1a1a;
  --bg-secondary: #242424;
  --bg-tertiary: #2d2d2d;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0a6;
  --text-muted: #5f6368;
  --border-color: #3c4043;
  --accent: #8ab4f8;
  --accent-hover: #aecbfa;
  --chart-bg: #1e1e1e;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.25);
}

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

.app {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100vh;
  padding: 0 20px 20px;
}

/* Header */
.header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  border-bottom: none;
  box-shadow: var(--shadow-md);
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  background: var(--bg-primary);
  z-index: 100;
  margin-top: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.version {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.header-stats {
  display: flex;
  gap: 24px;
  margin-left: auto;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-value {
  font-size: 15px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.stat-label {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.theme-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 16px;
  transition:
    background 0.15s,
    transform 0.1s;
}

.theme-btn:hover {
  background: var(--bg-tertiary);
}

.theme-btn:active {
  transform: scale(0.95);
}

.theme-icon {
  color: var(--text-primary);
}

/* Controls */
.controls {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-md);
  flex-wrap: wrap;
  position: sticky;
  top: 69px;
  background: var(--bg-primary);
  z-index: 99;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.control-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.select,
.input {
  height: 30px;
  padding: 0 10px;
  font-size: 13px;
  font-family: inherit;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  outline: none;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
}

.select:focus,
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 20%, transparent);
}

.input {
  width: 160px;
}

.select {
  cursor: pointer;
  min-width: 100px;
}

.btn {
  height: 30px;
  padding: 0 12px;
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background 0.15s,
    transform 0.1s;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--success);
  color: white;
}

.btn-secondary:hover {
  background: #2d9248;
}

.btn-ghost {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-ghost:hover {
  background: var(--bg-tertiary);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--border-color);
}

.btn-danger:hover {
  background: color-mix(in srgb, var(--danger) 10%, transparent);
}

.control-spacer {
  flex: 1;
}

/* Toggle */
.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
}

.toggle input {
  display: none;
}

.toggle-slider {
  width: 44px;
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 12px;
  position: relative;
  transition: background 0.2s;
}

.toggle-slider::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  background: white;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
  box-shadow: var(--shadow-sm);
}

.toggle input:checked + .toggle-slider {
  background: var(--accent);
}

.toggle input:checked + .toggle-slider::after {
  transform: translateX(20px);
}

.toggle-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Chart Grid */
.chart-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
  grid-auto-rows: minmax(280px, auto);
  gap: 16px;
  padding: 16px 0;
  overflow: auto;
}

/* Chart Card */
.chart-card {
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition:
    transform 0.2s,
    box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  min-height: 280px;
}

.chart-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.dark .chart-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.35);
}

.chart-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border-color);
  user-select: none;
}

.chart-card-title {
  font-weight: 600;
  font-size: 14px;
  flex: 1;
}

.chart-card-type {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  padding: 3px 8px;
  border-radius: 4px;
}

.chart-card-points {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  background: var(--bg-tertiary);
  padding: 3px 8px;
  border-radius: 4px;
}

.chart-point-size {
  display: flex;
  align-items: center;
  gap: 4px;
}

.point-size-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 48px;
  height: 3px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.point-size-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform 0.1s;
}

.point-size-slider::-webkit-slider-thumb:hover {
  transform: scale(1.3);
}

.point-size-slider::-moz-range-thumb {
  width: 10px;
  height: 10px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.point-size-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 20px;
  font-variant-numeric: tabular-nums;
}

.chart-zoom-split {
  display: flex;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.zoom-axis-btn {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 4px 8px;
  border: none;
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
  min-width: 24px;
}

.zoom-axis-btn:first-child {
  border-right: 1px solid var(--border-color);
}

.zoom-axis-btn:hover {
  background: var(--bg-secondary);
}

.zoom-axis-btn.active {
  background: var(--accent);
  color: white;
}

.zoom-axis-btn.active:hover {
  background: var(--accent-hover);
}

.chart-card-actions {
  display: flex;
  gap: 4px;
}

.chart-action-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition:
    background 0.15s,
    color 0.15s;
}

.chart-action-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.chart-action-btn.danger:hover {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  color: var(--danger);
}

.chart-card-body {
  flex: 1;
  min-height: 200px;
  position: relative;
}

/* GPU Chart Component (from library) */
.gpu-chart {
  width: 100%;
  height: 100%;
  position: relative;
}

.gpu-chart-canvas-wrap {
  width: 100%;
  height: 100%;
  position: relative;
  touch-action: none;
  cursor: grab;
  background: var(--chart-bg);
  overflow: hidden;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.gpu-chart-canvas-wrap:active {
  cursor: grabbing;
}

.gpu-chart-back-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.gpu-chart-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
  z-index: 1;
}

.gpu-chart-axis-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}

.zoom-axis-btn:not(.active) {
  opacity: 0.5;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  background: var(--danger);
  color: white;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.toast.hidden {
  display: none;
}

/* Responsive */
@media (max-width: 768px) {
  .app {
    padding: 0 12px 12px;
  }

  .header {
    padding: 12px;
    margin-top: 12px;
  }

  .controls {
    gap: 8px;
  }

  .chart-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .control-spacer {
    display: none;
  }
}