/* Mini CAD — scoped to .tool-section only.
   Uses only variables already defined globally: --white-bg, --black-text,
   --blue-hover, --gray-bg, --gray-text. Toggling .dark-mode on <html>/<body>
   updates these automatically — nothing in this file redeclares
   .navbar, .footer, or body's padding-top/display (those stay controlled
   by the global stylesheet so the fixed navbar still clears correctly). */

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--gray-bg);
  color: var(--black-text);
}

.tool-section {
  padding: 40px 16px;
}

.tool-section .container.cad-container {
  max-width: 1600px;
  background: var(--white-bg);
  padding: 22px;
  margin: 0 auto;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.tool-section h1 {
  text-align: center;
  color: var(--black-text);
  margin-bottom: 8px;
}

.tool-section .desc {
  text-align: center;
  color: var(--gray-text);
  margin-bottom: 18px;
}

/* ---- Toolbar ---- */
.cad-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  background: var(--gray-bg);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 14px;
}

.tool-group {
  display: flex;
  gap: 6px;
  padding-right: 14px;
  border-right: 1px solid var(--gray-text);
}

.tool-group:last-child {
  border-right: none;
  padding-right: 0;
}

.tool-btn,
.icon-tool-btn {
  font-family: Arial, sans-serif;
  font-size: 13px;
  font-weight: bold;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1.5px solid var(--gray-text);
  background: var(--white-bg);
  color: var(--black-text);
  cursor: pointer;
  white-space: nowrap;
}

.tool-btn:hover,
.icon-tool-btn:hover {
  border-color: var(--blue-hover);
  color: var(--blue-hover);
}

.tool-btn.active,
.icon-tool-btn.toggle-btn.active {
  background: var(--blue-hover);
  border-color: var(--blue-hover);
  color: #fff;
}

.icon-tool-btn.export-btn {
  background: #28a745;
  border-color: #1e7e34;
  color: #fff;
}
.icon-tool-btn.export-btn:hover {
  background: #1e7e34;
  color: #fff;
}

.file-btn {
  display: inline-flex;
  align-items: center;
  margin: 0;
}

/* ---- Workspace: canvas + panel ---- */
.cad-workspace {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 900px) {
  .cad-workspace {
    grid-template-columns: 1fr 260px;
  }
}

.cad-canvas-wrap {
  position: relative;
  border: 1.5px solid var(--gray-text);
  border-radius: 10px;
  overflow: hidden;
  background: var(--white-bg);
}

#cadCanvas {
  display: block;
  width: 100%;
  height: clamp(420px, calc(100vh - 300px), 900px);
  touch-action: none;
  cursor: crosshair;
}

#cadCanvas.cursor-select {
  cursor: default;
}
#cadCanvas.cursor-pan {
  cursor: grab;
}
#cadCanvas.cursor-panning {
  cursor: grabbing;
}
#cadCanvas.cursor-draw {
  cursor: crosshair;
}

/* ---- Fullscreen stage: toolbar stays visible, workspace fills the rest ---- */
#cadStage {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#cadStage:fullscreen,
#cadStage:-webkit-full-screen {
  width: 100vw;
  height: 100vh;
  background: var(--white-bg);
  padding: 14px;
  box-sizing: border-box;
  overflow: auto;
}

#cadStage:fullscreen .cad-toolbar,
#cadStage:-webkit-full-screen .cad-toolbar {
  flex: none;
}

#cadStage:fullscreen .cad-workspace,
#cadStage:-webkit-full-screen .cad-workspace {
  flex: 1 1 auto;
  min-height: 0;
}

#cadStage:fullscreen .cad-canvas-wrap,
#cadStage:-webkit-full-screen .cad-canvas-wrap {
  height: 100%;
}

#cadStage:fullscreen #cadCanvas,
#cadStage:-webkit-full-screen #cadCanvas {
  height: 100%;
}

.cad-hint-overlay {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 12.5px;
  padding: 6px 10px;
  border-radius: 6px;
  pointer-events: none;
  display: none;
  z-index: 3;
}

.cad-hint-overlay.visible {
  display: block;
}

/* Typed coordinate input (dynamic input) */
.cad-coord-hud {
  position: absolute;
  bottom: 14px;
  left: 14px;
  display: none;
  align-items: center;
  gap: 6px;
  background: rgba(30, 30, 30, 0.85);
  color: #fff;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 12.5px;
  z-index: 4;
}
.cad-coord-hud.visible {
  display: flex;
}
.cad-coord-hud label {
  font-weight: bold;
}
.cad-coord-hud input {
  width: 70px;
  padding: 4px 6px;
  border-radius: 5px;
  border: none;
  font-size: 13px;
}
.cad-coord-hud button {
  border: none;
  background: var(--blue-hover, #0077ff);
  color: #fff;
  border-radius: 5px;
  padding: 4px 9px;
  cursor: pointer;
  font-size: 14px;
}

/* Measure result readout */
.cad-measure-hud {
  position: absolute;
  top: 10px;
  right: 10px;
  display: none;
  background: rgba(30, 30, 30, 0.85);
  color: #fff;
  font-size: 12.5px;
  padding: 8px 12px;
  border-radius: 8px;
  z-index: 4;
  max-width: 220px;
  line-height: 1.5;
}
.cad-measure-hud.visible {
  display: block;
}

/* Polyline arc/line mode indicator */
.cad-mode-hud {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: none;
  background: rgba(40, 167, 69, 0.9);
  color: #fff;
  font-size: 12px;
  font-weight: bold;
  padding: 6px 10px;
  border-radius: 6px;
  z-index: 4;
}
.cad-mode-hud.visible {
  display: block;
}

/* ---- Properties panel ---- */
.cad-panel {
  background: var(--gray-bg);
  border-radius: 10px;
  padding: 14px;
}

.panel-block {
  margin-bottom: 14px;
}

.panel-block label {
  font-weight: bold;
  font-size: 13px;
  color: var(--black-text);
  display: block;
  margin-bottom: 6px;
}

.panel-block input,
.panel-block select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--gray-text);
  background: var(--white-bg);
  color: var(--black-text);
  font-size: 14px;
  font-family: Arial, sans-serif;
  box-sizing: border-box;
}

.panel-block input[type="color"] {
  padding: 3px;
  height: 38px;
  cursor: pointer;
}

.panel-readonly {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.panel-readonly-label {
  color: var(--gray-text);
  font-weight: bold;
}

#zoomLevelOut,
#entityCountOut,
#cursorPosOut {
  font-family: "Courier New", monospace;
  color: var(--black-text);
}

.cad-keys-hint {
  margin-top: 6px;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .tool-group {
    border-right: none;
    padding-right: 0;
  }
}