/* ==========================================================================
   2D Nesting Playground - Modern Dark CAM/CAD Theme
   ========================================================================== */

:root {
  --bg-main: #1e1e1e;
  --bg-card: #282828;
  --bg-card-hover: #333333;
  --bg-input: #181818;
  --border-color: #383838;
  --border-focus: #ea7600;
  
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #707070;

  --accent-primary: #ea7600;
  --accent-primary-hover: #ff8c00;
  --accent-cyan: #7fb3d5;
  --accent-emerald: #82ca9d;
  --accent-rose: #f1948a;
  --accent-amber: #f9e79f;
  
  --sheet-bg: #1e1e1e;
  --sheet-border: #444444;
  --grid-line: rgba(255, 255, 255, 0.05);
  --cutoff-line: #eb4d4b;

  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -4px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

/* Global No-Spin Buttons for all number inputs */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
  display: none !important;
}

input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

/* Global Sleek Dark Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 9999px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(234, 118, 0, 0.5);
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-primary);
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.app-header {
  height: 56px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  flex-shrink: 0;
  z-index: 20;
}

/* --------------------------------------------------------------------------
   Stage 2 Top Bar: Results, Metrics, Multi-Sheet Tabs, and Export Group
   -------------------------------------------------------------------------- */
.stage-nesting-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #202020;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #383838;
  padding: 5px 12px;
  gap: 12px;
  z-index: 25;
  user-select: none;
  flex-shrink: 0;
  min-height: 48px;
  overflow-x: auto;
}

.nest-header-left-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  min-width: 0;
}

.nest-header-metrics-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.nest-metric-chip {
  display: flex;
  flex-direction: column;
  background: #282828;
  border: 1px solid #3d3d3d;
  border-radius: 6px;
  padding: 3px 8px;
  min-width: 85px;
  gap: 1px;
}

.nest-metric-chip.highlight-cyan {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.12), rgba(14, 165, 233, 0.04));
  border-color: rgba(56, 189, 248, 0.35);
}

.nest-metric-chip.highlight-emerald {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.14), rgba(5, 150, 105, 0.04));
  border-color: rgba(16, 185, 129, 0.4);
}

.nest-metric-chip .chip-label {
  font-size: 9.5px;
  font-weight: 700;
  color: #94a3b8;
  white-space: nowrap;
}

.nest-metric-chip .chip-val-row {
  display: flex;
  align-items: baseline;
  gap: 5px;
}

.nest-metric-chip .chip-val {
  font-size: 13.5px;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #f8fafc;
  line-height: 1.1;
  white-space: nowrap;
}

.nest-metric-chip .chip-val.cyan {
  color: #38bdf8;
}

.nest-metric-chip .chip-val.emerald {
  color: #34d399;
}

.nest-metric-chip .chip-val.amber {
  color: #fbbf24;
}

.nest-metric-chip .chip-sub {
  font-size: 9.5px;
  font-weight: 700;
  color: #94a3b8;
  white-space: nowrap;
}

.nest-audit-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 10.5px;
  font-weight: 700;
  background: #064e3b;
  color: #34d399;
  border: 1px solid rgba(52, 211, 153, 0.3);
  cursor: default;
  white-space: nowrap;
  transition: all 0.2s ease;
  height: 34px;
}

.nest-top-multisheet-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 10px;
  border-left: 1px solid #383838;
  flex-shrink: 0;
}

.multisheet-tabs-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.multisheet-label {
  font-size: 11px;
  font-weight: 700;
  color: #38bdf8;
  white-space: nowrap;
}

.multisheet-tabs-list {
  display: flex;
  gap: 4px;
  align-items: center;
}

.multisheet-summary-text {
  font-size: 10.5px;
  font-weight: 700;
  color: #10b981;
  white-space: nowrap;
}

.nest-header-export-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Stage 2 Main Body & Right-Side Vertical CAM Toolbox
   -------------------------------------------------------------------------- */
.stage-nesting-body {
  display: flex;
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: hidden;
  width: 100%;
}

.cam-vertical-toolbox {
  width: 170px;
  min-width: 170px;
  height: 100%;
  background: #202020;
  border-left: 1px solid #383838;
  display: flex;
  flex-direction: column;
  z-index: 20;
  user-select: none;
  flex-shrink: 0;
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.25);
}

.cam-toolbox-header {
  padding: 8px 10px;
  border-bottom: 1px solid #383838;
  background: #252525;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cam-toolbox-title {
  font-size: 11.5px;
  font-weight: 700;
  color: #f0f0f0;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.cam-toolbox-scroll-content {
  padding: 8px 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
}

.cam-tool-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.cam-tool-group-title {
  font-size: 9.5px;
  font-weight: 700;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 2px 4px 0 4px;
}

.cam-toolbox-divider {
  height: 1px;
  background: #333333;
  margin: 2px 0;
}

.cam-vtool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 6px 8px;
  font-size: 11px;
  font-weight: 600;
  color: #f0f0f0;
  background: #2b2b2b;
  border: 1px solid #444444;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  white-space: nowrap;
}

.cam-vtool-btn:hover {
  background: #383838;
  border-color: #ea7600;
  color: #ff9f43;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.cam-vtool-btn:active {
  transform: translateY(0);
}

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

.brand-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent-primary), #f39c12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 12px rgba(234, 118, 0, 0.35);
}

.brand-title {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.brand-badge {
  font-size: 10px;
  font-family: var(--font-mono);
  background: rgba(234, 118, 0, 0.15);
  color: #ea7600;
  border: 1px solid rgba(234, 118, 0, 0.3);
  padding: 2px 6px;
  border-radius: 999px;
}

.header-actions {
  display: flex !important;
  flex-direction: row !important;
  align-items: center !important;
  gap: 12px !important;
}

.lang-switch-wrapper {
  display: inline-flex !important;
  align-items: center !important;
}

.user-account-dropdown-wrapper {
  display: inline-flex !important;
  align-items: center !important;
  position: relative !important;
}

.lang-select {
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.lang-select:hover {
  border-color: #ea7600 !important;
}

/* --------------------------------------------------------------------------
   Dev Control Palette (Slide-Out Side Drawer)
   -------------------------------------------------------------------------- */
.btn-dev-palette-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: #818cf8;
  padding: 6px 12px;
  font-size: 11.5px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-dev-palette-trigger:hover {
  background: rgba(99, 102, 241, 0.28);
  border-color: #818cf8;
  color: #ffffff;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.35);
  transform: translateY(-1px);
}

.dev-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.65);
  backdrop-filter: blur(4px);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.dev-drawer-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.dev-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 440px;
  max-width: 90vw;
  height: 100vh;
  background: #181818;
  border-left: 1px solid var(--border-color);
  box-shadow: -8px 0 32px rgba(0, 0, 0, 0.7);
  z-index: 2001;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

.dev-drawer.active {
  transform: translateX(0) !important;
}

.dev-drawer-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #202020;
}

.dev-drawer-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 700;
  color: #f0f0f0;
}

.dev-drawer-close-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #94a3b8;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.dev-drawer-close-btn:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: #ef4444;
  color: #f87171;
}

.dev-drawer-content {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}

.dev-drawer-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dev-drawer-label {
  font-size: 11.5px;
  font-weight: 700;
  color: #a0a0a0;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.dev-drawer-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

/* --------------------------------------------------------------------------
   User Account Dropdown Component
   -------------------------------------------------------------------------- */
.btn-user-account {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px 4px 6px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-user-account:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ea7600;
}

.user-avatar {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.user-info-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.2;
}

.user-company-name {
  font-size: 12px;
  font-weight: 700;
  color: #f0f0f0;
}

.user-role-badge {
  font-size: 9.5px;
  font-weight: 600;
  color: #ea7600;
}

.user-account-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 280px;
  background: #252525;
  border: 1px solid #383838;
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.account-menu-header {
  padding: 8px 10px;
}

.menu-user-name {
  font-size: 12px;
  font-weight: 700;
  color: #f0f0f0;
}

.menu-user-email {
  font-size: 10.5px;
  color: #a0a0a0;
  margin-top: 2px;
}

.account-menu-divider {
  height: 1px;
  background: #383838;
  margin: 4px 0;
}

.account-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: #e0e0e0;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all 0.15s ease;
}

.account-menu-item:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ea7600;
}

.account-menu-item.danger:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

.menu-item-icon {
  font-size: 16px;
  flex-shrink: 0;
}

.menu-item-desc {
  display: flex;
  flex-direction: column;
}

.menu-item-title {
  font-size: 11.5px;
  font-weight: 700;
}

.menu-item-sub {
  font-size: 9.5px;
  color: #94a3b8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.btn-primary {
  background: linear-gradient(135deg, #ea7600, #f39c12);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(234, 118, 0, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff8c00, #ea7600);
  box-shadow: 0 4px 12px rgba(255, 140, 0, 0.5);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: var(--bg-input);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--bg-card-hover);
  border-color: var(--text-secondary);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-color);
  color: var(--text-secondary);
}

.btn-outline:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border-color: var(--border-focus);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-mode {
  flex: 1;
  padding: 6px 4px;
  font-size: 11px;
  font-weight: 600;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
  text-align: center;
}

.btn-mode:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
}

.btn-mode.active {
  background: linear-gradient(135deg, rgba(234, 118, 0, 0.35), rgba(243, 156, 18, 0.25));
  border-color: #ea7600;
  color: #ff8c00;
  font-weight: 700;
  box-shadow: 0 0 10px rgba(234, 118, 0, 0.25);
}

/* --------------------------------------------------------------------------
   App Layout
   -------------------------------------------------------------------------- */
.app-container {
  display: flex;
  flex: 1;
  height: calc(100vh - 56px);
  overflow: hidden;
}

/* Sidebar */
.app-sidebar {
  width: 380px;
  background-color: var(--bg-card);
  border-right: 1px solid var(--border-color);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  overflow-y: auto;
  z-index: 10;
}

/* Sidebar Bottom Sticky Action Bar */
.sidebar-bottom-action-container {
  position: sticky;
  bottom: 0;
  margin-top: auto;
  padding: 12px 14px;
  background: #202020;
  border-top: 1px solid #383838;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.45);
  z-index: 15;
}

.btn-sidebar-nest-action {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 50%, #075985 100%);
  color: #ffffff;
  border: 1px solid rgba(56, 189, 248, 0.45);
  border-radius: 8px;
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.3px;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35), 0 2px 6px rgba(0, 0, 0, 0.4);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  user-select: none;
}

.btn-sidebar-nest-action:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 50%, #0369a1 100%);
  border-color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.55), 0 3px 8px rgba(0, 0, 0, 0.5);
}

.btn-sidebar-nest-action:active {
  transform: translateY(0);
}

.btn-sidebar-nest-action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Recalculate Mode (Stage 2 Result Screen) */
.btn-sidebar-nest-action.recalc-mode {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 50%, #075985 100%);
  border-color: rgba(56, 189, 248, 0.45);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35), 0 2px 6px rgba(0, 0, 0, 0.4);
}

.btn-sidebar-nest-action.recalc-mode:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 50%, #0369a1 100%);
  border-color: #ffffff;
  box-shadow: 0 6px 20px rgba(56, 189, 248, 0.55), 0 3px 8px rgba(0, 0, 0, 0.5);
}

/* Filler Mode Theme */
.btn-sidebar-nest-action.filler-mode {
  background: linear-gradient(135deg, #9333ea 0%, #7e22ce 50%, #6b21a8 100%);
  border-color: rgba(192, 132, 252, 0.45);
  box-shadow: 0 4px 14px rgba(147, 51, 234, 0.35), 0 2px 6px rgba(0, 0, 0, 0.4);
}

.btn-sidebar-nest-action.filler-mode:hover {
  background: linear-gradient(135deg, #a855f7 0%, #9333ea 50%, #7e22ce 100%);
  border-color: #ffffff;
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.55), 0 3px 8px rgba(0, 0, 0, 0.5);
}

/* Sheet Tab Lock Styles (Sheet-Level Freezing) */
.sheet-tab-btn.sheet-locked {
  border-color: #f59e0b !important;
  background: rgba(245, 158, 11, 0.15) !important;
  color: #fef08a !important;
}

.sheet-tab-lock-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: 6px;
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #94a3b8;
  transition: all 0.15s ease;
  user-select: none;
}

.sheet-tab-lock-btn:hover {
  background: rgba(245, 158, 11, 0.35);
  border-color: #f59e0b;
  color: #fff;
}

.sheet-tab-lock-btn.locked {
  background: #f59e0b;
  border-color: #fbbf24;
  color: #000;
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.5);
}

.sidebar-section {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Sheet Preset Chips */
.sheet-preset-chips {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  margin-bottom: 10px;
}

.btn-sheet-chip {
  appearance: none;
  -webkit-appearance: none;
  background: #252525;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #a0a0a0;
  font-size: 10.5px;
  font-weight: 700;
  font-family: inherit;
  padding: 5px 2px;
  border-radius: var(--radius-sm, 4px);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
  user-select: none;
  outline: none;
  white-space: nowrap;
}

.btn-sheet-chip:hover {
  background: rgba(234, 118, 0, 0.2);
  border-color: rgba(234, 118, 0, 0.5);
  color: #ff8c00;
}

.btn-sheet-chip.active {
  background: linear-gradient(135deg, rgba(234, 118, 0, 0.45), rgba(243, 156, 18, 0.35));
  border-color: #ea7600;
  color: #ffffff;
  box-shadow: 0 0 8px rgba(234, 118, 0, 0.3);
}

.btn-sheet-custom {
  background: rgba(35, 35, 35, 0.9);
  border: 1px dashed rgba(234, 118, 0, 0.5);
  color: #e0e0e0;
}

.btn-sheet-custom:hover {
  background: rgba(234, 118, 0, 0.15);
  border-color: #ea7600;
  color: #ff8c00;
}

.custom-sheet-dropdown-wrapper {
  position: relative;
  width: 100%;
}

.custom-sheet-dropdown-wrapper .btn-sheet-chip {
  width: 100%;
}

.custom-sheet-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 220px;
  background: #252525;
  border: 1px solid #383838;
  border-radius: 8px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 10px -6px rgba(0, 0, 0, 0.5);
  z-index: 99;
  padding: 6px;
  font-size: 11.5px;
}

.custom-sheet-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: 4px;
  color: var(--text-primary, #f0f0f0);
  cursor: pointer;
  transition: background 0.15s ease;
  user-select: none;
}

.custom-sheet-item:hover {
  background: rgba(234, 118, 0, 0.15);
  color: #ff8c00;
}

.custom-sheet-item.active {
  background: rgba(234, 118, 0, 0.25);
  border-left: 3px solid #ea7600;
  font-weight: 700;
  color: #ffffff;
}

.custom-sheet-item-del {
  opacity: 0.4;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 3px;
  transition: all 0.15s ease;
  font-size: 10px;
}

.custom-sheet-item-del:hover {
  opacity: 1.0;
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
}

/* --------------------------------------------------------------------------
   Unit Switcher & Margin Preset Stepper Controls
   -------------------------------------------------------------------------- */
.unit-toggle-pill-group {
  display: inline-flex;
  background: #181818;
  border: 1px solid #383838;
  border-radius: 6px;
  padding: 2px;
  gap: 2px;
}

.unit-toggle-btn {
  background: transparent;
  border: none;
  color: #a0a0a0;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.unit-toggle-btn:hover {
  color: #ffffff;
}

.unit-toggle-btn.active {
  background: #ea7600;
  color: #ffffff;
  box-shadow: 0 0 6px rgba(234, 118, 0, 0.4);
}

.margin-setting-card {
  background: #252525;
  border: 1px solid #383838;
  border-radius: 6px;
  padding: 6px 8px;
}

.margin-setting-card .control-label {
  color: #f0f0f0 !important;
  font-weight: 600;
}

.margin-setting-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.stepper-box {
  display: inline-flex;
  align-items: center;
  background: #181818;
  border: 1px solid #383838;
  border-radius: 5px;
  overflow: hidden;
}

.btn-stepper {
  background: #252525;
  border: none;
  color: #ea7600;
  font-size: 14px;
  font-weight: 800;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
}

.btn-stepper:hover {
  background: #333333;
  color: #ff8c00;
}

.btn-stepper:active {
  background: #ea7600;
  color: #ffffff;
}

.stepper-val-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 0 2px;
  background: #181818;
}

.stepper-input {
  width: 40px;
  border: none;
  background: transparent;
  color: #ffffff !important;
  font-size: 12px;
  font-family: var(--font-mono, monospace);
  font-weight: 700;
  text-align: center;
  padding: 0;
  outline: none;
  cursor: default;
}

.stepper-input::-webkit-outer-spin-button,
.stepper-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.stepper-unit {
  font-size: 10px;
  color: #94a3b8;
  margin-left: 1px;
  font-weight: 600;
}

.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit .control-input {
  padding-right: 28px;
}

.input-unit-suffix {
  position: absolute;
  right: 7px;
  font-size: 10px;
  color: #94a3b8;
  font-weight: 600;
  pointer-events: none;
}


/* Form Controls */
.control-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.control-group.full-width {
  grid-column: span 2;
}

.control-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.control-input, .control-select {
  width: 100%;
  padding: 8px 10px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 13px;
  font-family: var(--font-mono);
  outline: none;
  transition: border-color 0.15s ease;
}

.control-input:focus, .control-select:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

/* Metrics Cards */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.metric-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 64px;
  gap: 2px;
}

.metric-card.full-width {
  grid-column: span 2;
}

.metric-card.highlight {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
  border-color: rgba(99, 102, 241, 0.4);
}

.metric-title {
  font-size: 10.5px;
  color: var(--text-muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.metric-value {
  font-size: 15px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  line-height: 1.25;
  white-space: nowrap;
  letter-spacing: -0.2px;
}

.metric-sub-text {
  font-size: 9.5px;
  font-weight: 600;
  color: #94a3b8;
  line-height: 1.2;
  min-height: 14px;
  display: flex;
  align-items: center;
  margin-top: 1px;
}

.metric-sub-badge {
  display: inline-flex;
  align-items: center;
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 9.5px;
  font-weight: 700;
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
  line-height: 1.2;
  letter-spacing: -0.2px;
}

.metric-sub-badge.emerald {
  background: rgba(16, 185, 129, 0.12);
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.25);
}

.metric-sub-badge.amber {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.25);
}

.metric-value.emerald { color: var(--accent-emerald); }
.metric-value.cyan { color: var(--accent-cyan); }
.metric-value.amber { color: var(--accent-amber); }
.metric-value.rose { color: var(--accent-rose); }

.badge-valid {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-emerald);
}

.badge-invalid {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-rose);
}

/* /* Upload Dropzone (Left Sidebar) - Luminous Sky Blue Theme */
.dropzone {
  border: 1.5px dashed rgba(56, 189, 248, 0.45);
  border-radius: 8px;
  padding: 13px 10px;
  text-align: center;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  background: linear-gradient(180deg, rgba(14, 116, 144, 0.16) 0%, rgba(15, 23, 42, 0.35) 100%);
  user-select: none;
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.12), inset 0 1px 1px rgba(56, 189, 248, 0.1);
}

.dropzone:hover {
  border-color: #38bdf8;
  background: linear-gradient(180deg, rgba(14, 116, 144, 0.28) 0%, rgba(15, 23, 42, 0.5) 100%);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.3), inset 0 0 12px rgba(56, 189, 248, 0.12);
  transform: translateY(-1px);
}

.dropzone.dragover {
  border-color: #7dd3fc;
  background: rgba(56, 189, 248, 0.25);
  box-shadow: 0 0 24px rgba(56, 189, 248, 0.45);
  transform: scale(1.02);
}

.dropzone-icon {
  font-size: 22px;
  margin-bottom: 4px;
  line-height: 1;
  transition: transform 0.22s ease;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

.dropzone:hover .dropzone-icon {
  transform: scale(1.12);
}

.dropzone-text {
  font-size: 11.5px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.2px;
}

.dropzone-sub {
  font-size: 10px;
  color: #7dd3fc;
  margin-top: 3px;
  font-weight: 500;
}

/* Parts list */
.parts-list {
  max-height: 120px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.part-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 12px;
}

.part-item-name {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.part-item-meta {
  color: var(--text-muted);
  font-size: 11px;
}

/* --------------------------------------------------------------------------
   Main Workspace & Canvas
   -------------------------------------------------------------------------- */
.app-main {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-main);
  overflow: hidden;
  height: 100%;
  min-height: 0;
}

.canvas-container {
  flex: 1;
  position: relative;
  width: 100%;
  min-height: 0;
  height: auto;
  background: radial-gradient(circle at center, #303030 0%, #202020 100%);
  cursor: grab;
  overflow: hidden;
}

.canvas-container.grabbing {
  cursor: grabbing;
}

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

/* Quick Difficulty Preset Bar */
.difficulty-bar {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(17, 24, 39, 0.9);
  backdrop-filter: blur(12px);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 10;
}

/* CAM Simulation Playback Floating Panel */
.cam-sim-panel {
  width: max-content !important;
  white-space: nowrap !important;
  flex-wrap: nowrap !important;
  box-sizing: border-box !important;
  flex-shrink: 0 !important;
  touch-action: none;
}

.cam-sim-panel .layer-toggles {
  flex-wrap: nowrap !important;
  white-space: nowrap !important;
  flex-shrink: 0 !important;
}

.cam-sim-panel .sim-controls,
.cam-sim-panel .sim-slider-container {
  flex-shrink: 0 !important;
}

.diff-bar-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-right: 4px;
}

.btn-diff {
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-diff:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn-diff.active {
  background: rgba(99, 102, 241, 0.25);
  border-color: var(--accent-primary);
  color: #818cf8;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.3);
}

.btn-diff-low.active {
  background: rgba(16, 185, 129, 0.25);
  border-color: #10b981;
  color: #34d399;
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.btn-diff-medium.active {
  background: rgba(245, 158, 11, 0.25);
  border-color: #f59e0b;
  color: #fbbf24;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.3);
}

.btn-diff-high.active {
  background: rgba(249, 115, 22, 0.25);
  border-color: #f97316;
  color: #fb923c;
  box-shadow: 0 0 10px rgba(249, 115, 22, 0.3);
}

.btn-diff-extreme.active {
  background: rgba(239, 68, 68, 0.25);
  border-color: #ef4444;
  color: #f87171;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
}

.btn-diff-special.active {
  background: rgba(168, 85, 247, 0.25);
  border-color: #a855f7;
  color: #c084fc;
  box-shadow: 0 0 10px rgba(168, 85, 247, 0.3);
}

/* Mode & Seed Selector Buttons */
.btn-mode, .btn-seed {
  flex: 1;
  padding: 6px 4px;
  font-size: 11px;
  font-weight: 600;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
  white-space: nowrap;
}

.btn-mode:hover, .btn-seed:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.btn-mode.active, .btn-seed.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.25);
}

/* Collapsible Advanced Parameters Accordion */
.advanced-details {
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.advanced-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px 4px;
  user-select: none;
  list-style: none;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.advanced-summary::-webkit-details-marker {
  display: none;
}

.advanced-summary:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.advanced-summary .chevron-icon {
  transition: transform 0.2s ease;
  color: var(--text-muted);
}

.advanced-details[open] .advanced-summary .chevron-icon {
  transform: rotate(180deg);
}

/* Floating HUD Controls */
.canvas-hud {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 6px;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  z-index: 10;
}

.canvas-hud-btn {
  width: 32px;
  height: 32px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.15s ease;
}

.canvas-hud-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-focus);
}

.canvas-info-hud {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  display: flex;
  gap: 16px;
  z-index: 10;
}

/* Global Loading Overlay (Across All Stages) */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(3, 7, 18, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(56, 189, 248, 0.2);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.loading-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

/* Tooltip */
.tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-focus);
  color: var(--text-primary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-mono);
  box-shadow: var(--shadow-md);
  z-index: 40;
  display: none;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: #ffffff;
  font-size: 13px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastSlideIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all 0.2s ease;
}

.toast.toast-success {
  border-color: #10b981;
  background: rgba(6, 78, 59, 0.9);
}

.toast.toast-info {
  border-color: #38bdf8;
  background: rgba(12, 74, 110, 0.9);
}

.toast.toast-danger {
  border-color: #ef4444;
  background: rgba(127, 29, 29, 0.9);
}

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

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(3, 7, 18, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9000;
}

.modal-card {
  width: 700px;
  max-width: 90vw;
  max-height: 85vh;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  padding: 14px 18px;
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 16px;
  flex: 1;
  overflow: hidden;
  display: flex;
}

.log-textarea {
  width: 100%;
  height: 380px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  padding: 12px;
  resize: none;
  outline: none;
  overflow-y: auto;
}

.modal-footer {
  padding: 12px 18px;
  background: var(--bg-header);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* --------------------------------------------------------------------------
   Canvas Context Menu & Interactive Rotation UI
   -------------------------------------------------------------------------- */
.canvas-context-menu {
  position: fixed;
  z-index: 9999;
  min-width: 220px;
  background: rgba(17, 24, 39, 0.95);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.05);
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: contextMenuFadeIn 0.12s cubic-bezier(0.16, 1, 0.3, 1);
  user-select: none;
}

@keyframes contextMenuFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-4px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.canvas-context-menu-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.12s ease;
}

.canvas-context-menu-item:hover {
  background: rgba(56, 189, 248, 0.15);
  color: #ffffff;
}

.canvas-context-menu-item.danger:hover {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
}

.canvas-context-menu-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.canvas-context-menu-icon {
  font-size: 14px;
  width: 16px;
  text-align: center;
  display: inline-block;
}

.canvas-context-menu-shortcut {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 5px;
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.canvas-context-menu-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 4px 2px;
}

/* --------------------------------------------------------------------------
   CAM Finish Tools Toolbar
   -------------------------------------------------------------------------- */
.canvas-finish-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #202020;
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #383838;
  padding: 6px 14px;
  gap: 12px;
  z-index: 10;
  user-select: none;
  flex-shrink: 0;
}

.finish-toolbar-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.finish-toolbar-title {
  font-size: 12px;
  font-weight: 700;
  color: #d0d0d0;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.finish-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.finish-tool-dropdown-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 0px;
  background: #282828;
  border: 1px solid #444444;
  border-radius: var(--radius-sm);
  padding: 0;
  transition: all 0.15s ease;
}

.finish-tool-dropdown-wrapper:hover {
  border-color: #ea7600;
}

.finish-tool-dropdown-wrapper .finish-tool-btn {
  border: none;
  background: transparent;
  box-shadow: none;
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  padding-right: 4px;
}

.finish-tool-select {
  background: #181818;
  border: none;
  border-left: 1px solid #444444;
  color: #ff9f43;
  font-size: 10.5px;
  font-weight: 700;
  padding: 5px 6px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  cursor: pointer;
  outline: none;
  transition: all 0.15s ease;
}

.finish-tool-select:hover {
  background: #222222;
  color: #ffb86c;
}

.finish-tool-select:focus {
  border-left-color: #ea7600;
}

.finish-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 600;
  color: #f0f0f0;
  background: #2b2b2b;
  border: 1px solid #444444;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.finish-tool-btn:hover {
  background: #383838;
  border-color: #ea7600;
  color: #ff9f43;
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.finish-tool-btn:active {
  transform: translateY(0);
}

.cam-vtool-btn .cam-vtool-icon {
  font-size: 12.5px;
  line-height: 1;
  flex-shrink: 0;
}

.cam-vtool-btn .cam-vtool-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cam-vtool-btn.active {
  background: rgba(234, 118, 0, 0.25);
  border-color: #ea7600;
  color: #ff9f43;
  box-shadow: 0 0 10px rgba(234, 118, 0, 0.35);
}

.cam-vtool-btn-primary {
  background: linear-gradient(135deg, #ea7600 0%, #d35400 100%);
  border-color: #ff9f43;
  color: #ffffff;
  font-weight: 700;
  justify-content: center;
  box-shadow: 0 2px 10px rgba(234, 118, 0, 0.4);
}

.cam-vtool-btn-primary:hover {
  background: linear-gradient(135deg, #ff8c00 0%, #ea7600 100%);
  border-color: #ffb86c;
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(234, 118, 0, 0.6);
}

.cam-vtool-btn-primary.active {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  border-color: #34d399;
  color: #ffffff;
  box-shadow: 0 0 14px rgba(16, 185, 129, 0.45);
}

.cam-vtool-btn-filler {
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%) !important;
  border-color: #a78bfa !important;
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(124, 58, 237, 0.4) !important;
}

.cam-vtool-btn-filler:hover {
  background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%) !important;
  border-color: #c4b5fd !important;
  color: #ffffff !important;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.6) !important;
  transform: translateY(-1px);
}

.cam-vtool-btn-danger {
  background: rgba(239, 68, 68, 0.15) !important;
  border-color: rgba(239, 68, 68, 0.4) !important;
  color: #fca5a5 !important;
}

.cam-vtool-btn-danger:hover {
  background: rgba(239, 68, 68, 0.25) !important;
  border-color: #ef4444 !important;
  color: #ffffff !important;
  box-shadow: 0 2px 10px rgba(239, 68, 68, 0.4) !important;
  transform: translateY(-1px);
}

.cam-vtool-combo-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cam-vtool-select {
  width: 100%;
  background: #181818;
  border: 1px solid #444444;
  color: #ff9f43;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
  outline: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.cam-vtool-select:hover {
  background: #222222;
  border-color: #ea7600;
  color: #ffb86c;
}

/* CAM Cutting Sequence Legend Component */
.cam-legend-overlay {
  display: none;
  position: absolute;
  top: 60px;
  right: 68px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  padding: 10px 14px;
  color: #e2e8f0;
  font-size: 11px;
  z-index: 50;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  user-select: none;
  pointer-events: auto;
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: 260px;
}

.legend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.legend-title {
  font-weight: 700;
  font-size: 11.5px;
  color: #f8fafc;
  display: flex;
  align-items: center;
  gap: 4px;
}

.legend-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  padding: 0 4px;
  border-radius: 4px;
  transition: color 0.15s ease, background 0.15s ease;
}

.legend-toggle-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.legend-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.legend-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 18px;
  border-radius: 9999px;
  font-size: 9.5px;
  font-weight: 700;
  font-family: monospace;
  color: #ffffff;
  flex-shrink: 0;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

.badge-hole { background-color: #ec4899; }
.badge-common { background-color: #10b981; }
.badge-outer { background-color: #3b82f6; }
.badge-tab { background-color: #d97706; font-size: 8px; }
.badge-remnant { background-color: #f59e0b; }

.legend-line {
  color: #fbbf24;
  font-weight: 900;
  font-size: 11px;
  letter-spacing: -1.5px;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.legend-desc {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.legend-main {
  font-weight: 600;
  color: #f1f5f9;
  font-size: 11px;
}

.legend-sub {
  font-size: 9.5px;
  color: #94a3b8;
}

/* Floating Minimized Pills (Show/Hide Toggle - Stacked Cleanly at Bottom Right) */
.cam-sim-pill {
  position: absolute;
  bottom: 24px;
  right: 16px;
  background: rgba(15, 23, 42, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  padding: 6px 14px;
  color: #e2e8f0;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  z-index: 50;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(10px);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
  user-select: none;
  white-space: nowrap;
}

.cam-sim-pill:hover {
  background: rgba(30, 41, 59, 0.98);
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.45);
  transform: translateY(-1px);
}

.cam-legend-pill {
  position: absolute;
  bottom: 74px;
  right: 16px;
  background: rgba(15, 23, 42, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 20px;
  padding: 6px 14px;
  color: #e2e8f0;
  font-size: 11.5px;
  font-weight: 700;
  cursor: pointer;
  z-index: 50;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
  user-select: none;
}

.cam-legend-pill:hover {
  background: rgba(30, 41, 59, 0.98);
  border-color: #38bdf8;
  color: #38bdf8;
  box-shadow: 0 0 12px rgba(56, 189, 248, 0.4);
  transform: translateY(-1px);
}

/* ==============================================================================
 * CAM Simulation Controller & Layer Toggles Panel
 * ============================================================================== */
.cam-sim-panel {
  position: absolute;
  bottom: 60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: #e2e8f0;
  font-size: 11.5px;
  z-index: 50;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.55);
  user-select: none;
}

.sim-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sim-btn {
  background: #334155;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-radius: 6px;
  width: 32px;
  height: 30px;
  cursor: pointer;
  font-weight: bold;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.sim-btn:hover {
  background: #475569;
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-1px);
}

.sim-speed-select {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #f8fafc;
  border-radius: 6px;
  padding: 4px 6px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}

.sim-slider-container {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
}

#sim-slider {
  flex: 1;
  cursor: pointer;
  accent-color: #38bdf8;
}

.task-counter {
  font-family: monospace;
  font-size: 11.5px;
  font-weight: 700;
  min-width: 65px;
  text-align: right;
  color: #38bdf8;
}

.layer-toggles {
  display: flex;
  align-items: center;
  gap: 12px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  padding-left: 14px;
}

.layer-toggles label {
  cursor: pointer;
  user-select: none;
  font-size: 11px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: #cbd5e1;
  transition: color 0.15s ease;
}

.layer-toggles label:hover {
  color: #ffffff;
}

.layer-toggles input[type="checkbox"] {
  cursor: pointer;
  accent-color: #3b82f6;
}

/* --------------------------------------------------------------------------
   Multi-Sheet Selector Bar
   -------------------------------------------------------------------------- */
.multi-sheet-bar {
  background: rgba(15, 23, 42, 0.95);
  border-bottom: 1px solid var(--border-color);
  padding: 4px 14px;
  min-height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-shrink: 0;
  z-index: 15;
}

.sheet-tab-btn {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #94a3b8;
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s ease;
}

.sheet-tab-btn:hover {
  background: #334155;
  color: #f8fafc;
  border-color: rgba(255, 255, 255, 0.25);
}

.sheet-tab-btn.active {
  background: rgba(56, 189, 248, 0.18);
  border-color: #38bdf8;
  color: #38bdf8;
  font-weight: 700;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.25);
}

.sheet-tab-btn-all {
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(129, 140, 248, 0.4);
  color: #a5b4fc;
}

.sheet-tab-btn-all:hover {
  background: rgba(99, 102, 241, 0.28);
  border-color: #818cf8;
  color: #ffffff;
}

.sheet-tab-btn-all.active {
  background: rgba(99, 102, 241, 0.35);
  border-color: #818cf8;
  color: #ffffff;
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.4);
}

/* --------------------------------------------------------------------------
   Filler Parts Management Modal & Catalog Integration
   -------------------------------------------------------------------------- */
.btn-catalog-filler {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.35);
  border-radius: 8px;
  color: #a5b4fc;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.btn-catalog-filler:hover {
  background: rgba(99, 102, 241, 0.28);
  border-color: #818cf8;
  color: #ffffff;
  box-shadow: 0 0 12px rgba(99, 102, 241, 0.3);
  transform: translateY(-1px);
}

.filler-modal-card {
  background: #0d1322 !important;
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
  border-radius: 14px !important;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.8) !important;
}

.filler-tab {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #94a3b8;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.filler-tab:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
}

.filler-tab.active {
  background: rgba(56, 189, 248, 0.2);
  border-color: #38bdf8;
  color: #38bdf8;
  font-weight: 700;
}

.filler-card {
  background: #151d30;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all 0.2s ease;
}

.filler-card:hover {
  border-color: rgba(99, 102, 241, 0.5);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
}

.filler-card.selected {
  border-color: #38bdf8;
  background: rgba(14, 165, 233, 0.08);
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.2);
}

.filler-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.filler-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  color: #f8fafc;
  overflow: hidden;
}

.filler-chk {
  cursor: pointer;
  accent-color: #38bdf8;
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.filler-part-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.filler-priority {
  font-size: 9.5px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  flex-shrink: 0;
}

.filler-priority.high {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.filler-priority.med {
  background: rgba(245, 158, 11, 0.2);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

.filler-priority.low {
  background: rgba(148, 163, 184, 0.15);
  color: #cbd5e1;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.filler-thumb-box {
  height: 100px;
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.filler-svg-preview {
  width: 100%;
  height: 100%;
  max-height: 84px;
}

.filler-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  color: #94a3b8;
  padding: 0 2px;
}

.filler-dim {
  font-family: var(--font-mono);
  color: #e2e8f0;
  font-weight: 600;
}

.filler-mat {
  font-size: 10px;
  background: rgba(255, 255, 255, 0.06);
  padding: 1px 5px;
  border-radius: 3px;
}

.filler-qty-stepper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 8px;
  margin-top: 2px;
}

.filler-qty-label {
  font-size: 11px;
  font-weight: 600;
  color: #94a3b8;
}

.qty-stepper-ctrl {
  display: flex;
  align-items: center;
  gap: 2px;
  background: #090d16;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  padding: 2px;
}

.btn-qty-step {
  background: transparent;
  border: none;
  color: #94a3b8;
  width: 24px;
  height: 22px;
  cursor: pointer;
  font-weight: bold;
  font-size: 12px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s ease;
}

.btn-qty-step:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.input-qty-num {
  width: 44px;
  background: transparent;
  border: none;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  outline: none;
}

@keyframes ticketPulse {
  0% { transform: scale(1); box-shadow: 0 0 0 rgba(56, 189, 248, 0); }
  50% { transform: scale(1.08); box-shadow: 0 0 12px rgba(56, 189, 248, 0.8); background: rgba(56, 189, 248, 0.35); }
  100% { transform: scale(1); box-shadow: 0 0 0 rgba(56, 189, 248, 0); }
}

.ticket-badge-pulse {
  animation: ticketPulse 0.6s ease-in-out;
}

/* --------------------------------------------------------------------------
   Stage 3: Dual Quote & Production Sheet Mode Styles
   -------------------------------------------------------------------------- */
/* --------------------------------------------------------------------------
   Stage 3: Dual Quote & Production Sheet Mode Styles
   -------------------------------------------------------------------------- */
.quote-mode-switcher {
  display: flex;
  background: #1e1e1e;
  border: 1px solid #383838;
  border-radius: 8px;
  padding: 3px;
  gap: 4px;
}

.quote-mode-btn {
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: #a0a0a0;
  transition: all 0.2s ease;
}

.quote-mode-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
}

.quote-mode-btn.active {
  background: #ea7600 !important;
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(234, 118, 0, 0.4);
}

.client-quote-paper {
  background: #ffffff;
  color: #1e293b;
  border-radius: 10px;
  padding: 32px 36px;
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.4);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

.client-quote-paper table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 14px;
}

.client-quote-paper th {
  background: #f1f5f9;
  color: #334155;
  font-size: 11.5px;
  font-weight: 700;
  padding: 8px 10px;
  border: 1px solid #cbd5e1;
  text-align: left;
}

.client-quote-paper td {
  font-size: 12px;
  color: #1e293b;
  padding: 8px 10px;
  border: 1px solid #e2e8f0;
}

/* ==========================================================================
   Parts Stock Palette (Stage 2 Drag & Drop Floating Stock Drawer)
   ========================================================================== */
.parts-stock-palette {
  position: absolute;
  top: 52px;
  right: 18px;
  width: 320px;
  max-height: calc(100% - 110px);
  background: rgba(30, 30, 30, 0.97);
  border: 1px solid #ea7600;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(234, 118, 0, 0.15);
  backdrop-filter: blur(12px);
  z-index: 60;
  display: flex;
  flex-direction: column;
  color: #f0f0f0;
  overflow: hidden;
  animation: paletteSlideIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes paletteSlideIn {
  from { opacity: 0; transform: translateX(20px) scale(0.96); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid #383838;
  background: #252525;
  user-select: none;
}

.palette-title {
  font-size: 12.5px;
  font-weight: 700;
  color: #f0f0f0;
  display: flex;
  align-items: center;
  gap: 6px;
}

.palette-badge {
  font-size: 10.5px;
  font-weight: 700;
  color: #ff9f43;
  background: rgba(234, 118, 0, 0.15);
  border: 1px solid rgba(234, 118, 0, 0.35);
  padding: 2px 7px;
  border-radius: 9999px;
}

.palette-close-btn {
  background: transparent;
  border: none;
  color: #999999;
  cursor: pointer;
  font-size: 13px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s ease;
}
.palette-close-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.palette-tabs {
  display: flex;
  border-bottom: 1px solid #383838;
  background: #1e1e1e;
}

.palette-tab {
  flex: 1;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: #a0a0a0;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: center;
}

.palette-tab:hover {
  color: #ffffff;
}

.palette-tab.active {
  color: #ff9f43;
  border-bottom-color: #ea7600;
  background: rgba(234, 118, 0, 0.12);
}

.palette-card-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 380px;
}

.palette-card-list::-webkit-scrollbar {
  width: 5px;
}
.palette-card-list::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 3px;
}

.palette-item-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  cursor: grab;
  user-select: none;
  transition: all 0.15s ease;
}

.palette-item-card:hover {
  border-color: rgba(56, 189, 248, 0.5);
  background: rgba(30, 41, 59, 0.95);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.palette-item-card:active {
  cursor: grabbing;
}

.palette-item-thumb {
  width: 44px;
  height: 44px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.palette-item-thumb svg {
  max-width: 38px;
  max-height: 38px;
}

.palette-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.palette-item-name {
  font-size: 11.5px;
  font-weight: 700;
  color: #f8fafc;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.palette-item-meta {
  font-size: 10px;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 6px;
}

.palette-item-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.palette-btn-add {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.4);
  color: #38bdf8;
  font-size: 10.5px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.palette-btn-add:hover {
  background: #38bdf8;
  color: #0f172a;
}

.palette-footer-hint {
  padding: 6px 10px;
  background: rgba(15, 23, 42, 0.8);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 9.5px;
  color: #94a3b8;
  text-align: center;
}

/* ==========================================================================
   Print Media Styles (Perfect A4 PDF & Paper Output)
   ========================================================================== */
@media print {
  /* Reset whole document for clean printing */
  html, body {
    width: 100% !important;
    height: auto !important;
    min-height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
    color: #000000 !important;
    overflow: visible !important;
  }

  /* Hide all non-printable UI elements */
  .app-header,
  .app-sidebar,
  .sidebar,
  .canvas-finish-toolbar,
  .canvas-container,
  .edge-nav-chevron,
  .quote-mode-switcher,
  .stage-breadcrumb-bar,
  .no-print,
  #stagePartCatalog,
  #stageNestingCanvas,
  #viewInternalSheet,
  #devDrawer,
  #devDrawerOverlay,
  #loadingOverlay,
  #toastContainer,
  #userAccountMenu {
    display: none !important;
    visibility: hidden !important;
    height: 0 !important;
    max-height: 0 !important;
    width: 0 !important;
    overflow: hidden !important;
  }

  /* Reset layout wrappers to prevent overflow clipping & carousel transform shift */
  .app-container,
  .app-layout,
  .app-body,
  .app-main,
  .stage-carousel-wrapper {
    position: static !important;
    display: block !important;
    width: 100% !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
    transform: none !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
  }

  /* Stage & Quotation View */
  #stageEstimationQuote {
    position: static !important;
    display: block !important;
    width: 100% !important;
    height: auto !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
    overflow: visible !important;
  }

  #viewClientQuote {
    display: block !important;
    visibility: visible !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: #ffffff !important;
  }

  .client-quote-paper {
    display: block !important;
    visibility: visible !important;
    position: static !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 10mm 15mm !important;
    box-shadow: none !important;
    border: none !important;
    background: #ffffff !important;
    color: #000000 !important;
    page-break-inside: avoid;
  }

  .client-quote-paper * {
    visibility: visible !important;
    color: #000000 !important;
  }

  .client-quote-paper table {
    width: 100% !important;
    border-collapse: collapse !important;
    page-break-inside: auto;
  }

  .client-quote-paper tr {
    page-break-inside: avoid;
    page-break-after: auto;
  }

  .client-quote-paper th {
    background-color: #f1f5f9 !important;
    color: #0f172a !important;
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
    border: 1px solid #94a3b8 !important;
  }

  .client-quote-paper td {
    border: 1px solid #cbd5e1 !important;
    color: #1e293b !important;
  }

  @page {
    size: A4 portrait;
    margin: 10mm;
  }
}

/* ==========================================================================
   SaaS Pricing Tier & Daily Quota Modal Styles
   ========================================================================== */

.header-quota-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  transition: all 0.2s ease;
  user-select: none;
}

.header-quota-badge:hover {
  transform: translateY(-1px);
  filter: brightness(1.2);
}

.pricing-plan-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.pricing-plan-card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.pricing-plan-card.popular:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 35px rgba(56, 189, 248, 0.35);
}

.btn-select-plan:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}

.btn-select-plan:active {
  transform: translateY(0);
}

#btnClosePricingModal:hover {
  color: #ffffff !important;
}

#btnContactEnterprise:hover {
  background: rgba(255, 255, 255, 0.08) !important;
  color: #ffffff !important;
  border-color: #94a3b8 !important;
}