/* ==========================================================================
   GAME DESIGN CANVAS - TRADINGVIEW DARK THEME & DESIGN SYSTEM
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* TradingView Base Color Palette */
  --bg-canvas: #131722;
  --bg-surface: #1e222d;
  --bg-surface-elevated: #242835;
  --bg-card: #191d28;
  --bg-card-hover: #222634;
  
  /* TradingView Borders & Grid Lines */
  --border-color: #2a2e39;
  --border-strong: #363a45;
  --border-active: #2962ff;
  --grid-line-color: rgba(42, 46, 57, 0.65);
  --grid-line-dash: rgba(255, 255, 255, 0.06);

  /* TradingView Brand & Accent Colors */
  --accent-blue: #2962ff;
  --accent-blue-hover: #1e53e5;
  --accent-green: #26b944;
  --accent-red: #e53935;
  --accent-yellow: #fbc02d;
  --accent-cyan: #1e88e5;

  /* Typography Colors */
  --text-primary: #d1d4dc;
  --text-secondary: #787b86;
  --text-muted: #50535e;
  --text-heading: #f0f3fa;

  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Dimensions & Spacing */
  --header-height: 48px;
  --status-bar-height: 28px;
  --radius-sm: 4px;
  --radius-md: 8px;

  /* Shadows */
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.6);
}

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

/* App Container Layout */
#app-container {
  display: grid;
  grid-template-rows: var(--header-height) 1fr var(--status-bar-height);
  grid-template-columns: 1fr;
  width: 100vw;
  height: 100vh;
  position: relative;
  background-color: var(--bg-canvas);
}

/* Top Navigation Bar */
.top-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  z-index: 50;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--accent-blue) 0%, #7c4dff 100%);
  border-radius: var(--radius-sm);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.brand-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-heading);
}

.brand-badge {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  background-color: rgba(41, 98, 255, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(41, 98, 255, 0.3);
  border-radius: var(--radius-sm);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background-color: var(--accent-blue);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

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

.btn-sequence {
  background-color: #00838f;
}

.btn-sequence:hover {
  background-color: #00acc1;
}

.btn-flow {
  background-color: #00a86b;
}

.btn-flow:hover {
  background-color: #00c853;
}

/* Main Canvas Wrapper */
.canvas-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-canvas);
  cursor: grab;
}

.canvas-wrapper:active {
  cursor: grabbing;
}

#canvas-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* Floating Toolbar */
.floating-toolbar {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 40;
}

.toolbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  position: relative;
}

.toolbar-btn:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.toolbar-btn.active {
  background-color: rgba(41, 98, 255, 0.15);
  color: var(--accent-blue);
  border: 1px solid rgba(41, 98, 255, 0.3);
}

.toolbar-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 4px 0;
}

/* Floating Zoom Bar */
.canvas-controls-bar {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  box-shadow: var(--shadow-md);
  z-index: 40;
}

.control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--text-secondary);
  cursor: pointer;
}

.control-btn:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.zoom-indicator {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  min-width: 48px;
  text-align: center;
  cursor: pointer;
}

.control-divider {
  width: 1px;
  height: 16px;
  background-color: var(--border-color);
}

/* Node Contextual Inline Toolbar */
.node-context-toolbar {
  position: absolute;
  height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 10px;
  background-color: #131722;
  border: 1px solid #00e676;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px rgba(0, 230, 118, 0.25);
  z-index: 45;
}

.node-context-toolbar.hidden {
  display: none !important;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.toolbar-group-divider {
  width: 1px;
  height: 16px;
  background-color: var(--border-color);
}

.inline-label {
  font-size: 11px;
  font-weight: 600;
  color: #00e676;
  font-family: var(--font-mono);
}

.inline-select {
  background-color: #1e222d;
  border: 1px solid var(--border-color);
  color: var(--text-heading);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 6px;
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.inline-btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 22px;
  background-color: #1e222d;
  border: 1px solid var(--border-color);
  border-radius: 3px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.inline-btn-icon:hover {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
}

.inline-btn-icon.active {
  background-color: rgba(0, 230, 118, 0.15);
  color: #00e676;
  border-color: rgba(0, 230, 118, 0.4);
}

.inline-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  background-color: rgba(41, 98, 255, 0.2);
  color: var(--accent-blue);
  border: 1px solid rgba(41, 98, 255, 0.4);
  border-radius: 3px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.inline-btn:hover {
  background-color: var(--accent-blue);
  color: #fff;
}

.inline-btn-success {
  background-color: rgba(38, 185, 68, 0.2);
  color: #26b944;
  border-color: rgba(38, 185, 68, 0.4);
}

.inline-btn-success:hover {
  background-color: #26b944;
  color: #fff;
}

.inline-btn-danger {
  background-color: rgba(229, 57, 53, 0.15);
  color: var(--accent-red);
  border-color: rgba(229, 57, 53, 0.3);
}

.inline-btn-danger:hover {
  background-color: var(--accent-red);
  color: #fff;
}

/* Category Edit / Add Node-Anchored Details Inspector Panel */
.details-panel {
  position: absolute;
  top: 60px;
  left: 600px;
  width: 310px;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.65);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 60;
  transition: opacity 0.15s ease;
}

.details-panel.hidden {
  display: none !important;
}

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

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: var(--bg-surface-elevated);
  border-bottom: 1px solid var(--border-color);
}

.modal-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-heading);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
}

.modal-body {
  padding: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 12px;
}

.form-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 6px 10px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 12px;
  outline: none;
}

.form-input:focus {
  border-color: var(--accent-blue);
}

.color-picker-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.color-picker-input {
  width: 36px;
  height: 32px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.color-hex-text {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-heading);
}

.color-swatches-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 4px;
}

.swatch-btn {
  width: 100%;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.swatch-btn:hover {
  transform: scale(1.1);
}

.modal-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background-color: var(--bg-surface-elevated);
  border-top: 1px solid var(--border-color);
}

.btn-primary-sm {
  padding: 6px 14px;
  background-color: var(--accent-blue);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary-sm {
  padding: 6px 12px;
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
}

.btn-danger-sm {
  padding: 6px 12px;
  background-color: rgba(229, 57, 53, 0.15);
  color: var(--accent-red);
  border: 1px solid rgba(229, 57, 53, 0.3);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
}

.btn-danger-sm:hover {
  background-color: var(--accent-red);
  color: #fff;
}

/* Bottom Status Bar */
.bottom-statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  z-index: 50;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent-green);
}

.icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

.icon-sm {
  width: 14px;
  height: 14px;
}

/* Canvas Inline Text Input Overlay */
.canvas-inline-input {
  position: absolute;
  background-color: #1e222d;
  border: 1px solid #2962ff;
  border-radius: 3px;
  color: #f0f3fa;
  font-family: var(--font-sans);
  padding: 2px 6px;
  outline: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
  z-index: 65;
  transition: border-color 0.15s ease;
}

.canvas-inline-input.hidden {
  display: none !important;
}