/* ==========================================================================
   Fold Around It — Tactile Structural Packaging & Dieline Studio Styles
   ========================================================================== */

:root {
  --bg-studio: #F4F0E8;
  --bg-panel: #FCFBF7;
  --bg-card: #FFFFFF;
  --bg-subtle: #ECE7DC;
  --ink-primary: #18181B;
  --ink-secondary: #52525B;
  --ink-muted: #78716C;
  --border-color: #DCD6C8;
  --border-strong: #BDB5A4;

  --cut-red: #C83218;
  --cut-red-soft: #FEE2E2;
  --fold-blue: #1D4ED8;
  --fold-blue-soft: #DBEAFE;
  --amber-dim: #B45309;
  --amber-soft: #FEF3C7;
  --ok-green: #15803D;
  --ok-green-soft: #DCFCE7;
  --warn-red: #B91C1C;
  --warn-red-soft: #FEE2E2;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Inter, Roboto, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', Menlo, Monaco, Consolas, monospace;
  --font-serif: Georgia, 'Times New Roman', serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.05);
  --shadow-md: 0 4px 14px rgba(24, 24, 27, 0.07);
}

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

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-studio);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

/* Hide dedicated print mount on screen */
#print-sheet-mount {
  display: none;
}

/* ==========================================================================
   Top Header & Presets Bar
   ========================================================================== */

.app-header {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border-color);
  padding: 12px 20px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand-group {
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}

.brand-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 4px;
  background: var(--ink-primary);
  color: var(--bg-panel);
  letter-spacing: 0.04em;
}

.brand-subtitle {
  margin: 0;
  color: var(--ink-secondary);
  font-size: 13px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn {
  appearance: none;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--ink-primary);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 13px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.14s ease;
  box-shadow: var(--shadow-sm);
}

.btn:hover {
  background: var(--bg-subtle);
  border-color: var(--ink-secondary);
}

.btn-primary {
  background: var(--ink-primary);
  color: #FFFFFF;
  border-color: var(--ink-primary);
}

.btn-primary:hover {
  background: #27272A;
  color: #FFFFFF;
}

.btn-accent {
  background: var(--cut-red);
  color: #FFFFFF;
  border-color: var(--cut-red);
}

.btn-accent:hover {
  background: #B02810;
  color: #FFFFFF;
}

.btn-sm {
  padding: 4px 9px;
  font-size: 12px;
}

/* Preset Ribbon */
.preset-bar {
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow-x: auto;
}

.preset-bar-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
  white-space: nowrap;
  margin-right: 4px;
}

.preset-pill {
  appearance: none;
  border: 1px solid var(--border-color);
  background: var(--bg-panel);
  color: var(--ink-primary);
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.14s ease;
}

.preset-pill:hover {
  border-color: var(--ink-secondary);
  background: var(--bg-card);
}

.preset-pill.is-active {
  background: var(--ink-primary);
  color: #FFFFFF;
  border-color: var(--ink-primary);
}

.preset-dims {
  font-family: var(--font-mono);
  font-size: 11px;
  opacity: 0.78;
}

/* ==========================================================================
   Main Studio Grid Layout
   ========================================================================== */

.studio-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 16px;
  padding: 16px 20px 28px;
  max-width: 1680px;
  margin: 0 auto;
  align-items: start;
}

.controls-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 11px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--border-color);
}

.panel-title {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-primary);
  font-family: var(--font-mono);
}

.panel-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
}

/* ==========================================================================
   Dimension Sliders & Inputs
   ========================================================================== */

.dim-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 11px;
}

.dim-row:last-child {
  margin-bottom: 0;
}

.dim-label-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 600;
}

.dim-axis-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  border-radius: 4px;
  margin-right: 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
}

.dim-controls-line {
  display: grid;
  grid-template-columns: 1fr 74px;
  gap: 10px;
  align-items: center;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--ink-primary);
  cursor: pointer;
}

.num-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.num-input {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 26px 5px 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--ink-primary);
  text-align: right;
}

.num-unit {
  position: absolute;
  right: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-muted);
  pointer-events: none;
}

.clearance-pills {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.chip-btn {
  flex: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 6px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  border-radius: 4px;
  cursor: pointer;
  color: var(--ink-secondary);
}

.chip-btn.is-active {
  background: var(--ink-primary);
  color: #FFFFFF;
  border-color: var(--ink-primary);
}

/* ==========================================================================
   Sheet Fit Banner & Orientation Helper
   ========================================================================== */

.fit-banner {
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12.5px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border: 1px solid transparent;
}

.fit-banner.fit-ok {
  background: var(--ok-green-soft);
  border-color: #86EFAC;
  color: #14532D;
}

.fit-banner.fit-warn {
  background: var(--warn-red-soft);
  border-color: #FCA5A5;
  color: #7F1D1D;
}

.fit-banner-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 700;
  font-family: var(--font-mono);
  font-size: 12px;
}

.fit-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
}

/* ==========================================================================
   Message Inputs
   ========================================================================== */

.field-group {
  margin-bottom: 10px;
}

.field-group:last-child {
  margin-bottom: 0;
}

.field-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-secondary);
  margin-bottom: 4px;
}

.text-input, .text-area, .select-input {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 13px;
  padding: 7px 9px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--ink-primary);
}

.text-area {
  resize: vertical;
  min-height: 56px;
}

/* ==========================================================================
   Engineering Breakdown Table
   ========================================================================== */

.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.spec-table th,
.spec-table td {
  padding: 5px 4px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.spec-table tr:last-child td {
  border-bottom: none;
}

.spec-table td:last-child {
  text-align: right;
  font-family: var(--font-mono);
  font-weight: 600;
}

.spec-formula {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-muted);
  display: block;
}

/* ==========================================================================
   Right Workspace — 3D Folding Stage + 2D Printable Dieline
   ========================================================================== */

.workspace-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

/* Fold Scrubber Bar */
.fold-controller-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.fold-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.fold-scrubber-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 240px;
}

.fold-pct-readout {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  min-width: 145px;
  color: var(--ink-primary);
}

.stage-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* Dual Viewport Grid */
.dual-viewport-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 14px;
  align-items: stretch;
}

.viewport-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.viewport-header {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  background: var(--bg-card);
}

.viewport-title-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.viewport-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.viewport-tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.canvas-stage-wrap {
  position: relative;
  flex: 1;
  min-height: 430px;
  background: radial-gradient(circle at 50% 42%, #FAF7F0 0%, #EAE4D7 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#fold-3d-canvas {
  width: 100%;
  height: 430px;
  display: block;
  cursor: grab;
}

#fold-3d-canvas:active {
  cursor: grabbing;
}

.canvas-overlay-badge {
  position: absolute;
  bottom: 10px;
  left: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  pointer-events: none;
  gap: 8px;
  flex-wrap: wrap;
}

.overlay-pill {
  background: rgba(252, 251, 247, 0.92);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-primary);
  pointer-events: auto;
  box-shadow: var(--shadow-sm);
}

/* 2D SVG Dieline Stage */
.svg-stage-wrap {
  position: relative;
  flex: 1;
  min-height: 430px;
  padding: 14px;
  background: #E5DFD2;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}

#dieline-svg-mount {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

#dieline-svg-mount svg {
  width: 100%;
  height: auto;
  max-height: 410px;
  box-shadow: 0 6px 20px rgba(24, 24, 27, 0.12);
  border: 1px solid #C7BFAEE0;
  background: #FAF7F0;
}

.viewport-footer {
  padding: 9px 14px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-card);
  font-size: 12px;
  color: var(--ink-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.legend-items {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 11px;
}

.legend-swatch {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.swatch-line {
  display: inline-block;
  width: 16px;
  height: 0;
}

.swatch-cut {
  border-top: 2px solid var(--cut-red);
}

.swatch-fold {
  border-top: 2px dashed var(--fold-blue);
}

.swatch-cal {
  display: inline-block;
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--ink-primary);
  background: #FFFFFF;
}

/* Assembly & Honest Scope Footer Card */
.guide-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.guide-step {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.guide-step-num {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--cut-red);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.guide-step-title {
  font-weight: 700;
  font-size: 13px;
  margin: 0 0 4px 0;
}

.guide-step-desc {
  margin: 0;
  font-size: 12px;
  color: var(--ink-secondary);
}

/* ==========================================================================
   Responsive Design (Tablet & Phone)
   ========================================================================== */

@media (max-width: 1180px) {
  .dual-viewport-grid {
    grid-template-columns: 1fr;
  }
  .guide-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .studio-layout {
    grid-template-columns: 1fr;
    padding: 12px;
  }
  .app-header {
    padding: 10px 12px;
  }
  .preset-bar {
    padding: 8px 12px;
  }
  .canvas-stage-wrap, #fold-3d-canvas, .svg-stage-wrap {
    min-height: 340px;
    height: 340px;
  }
  .guide-strip {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   TRUE 1:1 PHYSICAL SCALE PRINT STYLESHEET (@media print)
   ========================================================================== */

@media print {
  @page {
    margin: 0;
  }

  html, body {
    background: #FFFFFF !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
    height: 100% !important;
    overflow: visible !important;
  }

  #app-shell {
    display: none !important;
  }

  #print-sheet-mount {
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  #print-sheet-mount svg {
    display: block !important;
    margin: 0 !important;
    padding: 0 !important;
    border: none !important;
    box-shadow: none !important;
  }
}