/* PRISME 2D CAD — 2D 탐색 휠 (cad2d_navwheel.js, spec 027 WP-26). Prefix: cadnw-.
   The layer is in #cad-overlay: the navigation bar, the viewport controls and the ViewCube (z-index 5)
   stay above the wheel; what belongs to the drawing — constraint bars, dynamic constraints, table
   cells, group frames (z-index auto … 2, some added after this layer) — stays under it: a label under
   the cursor used to take the press meant for a wedge. Positions are canvas pixels (transform). */

.cad-overlay > .cadnw-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 3;
  --cadnw-size: 224px;
  --cadnw-opacity: 0.5;
}
.cadnw-layer[hidden] { display: none; }

.cadnw-wheel {
  position: absolute;
  left: 0;
  top: 0;
  width: var(--cadnw-size);
  height: var(--cadnw-size);
  margin: calc(var(--cadnw-size) / -2) 0 0 calc(var(--cadnw-size) / -2);
  border-radius: 50%;
  pointer-events: auto;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: default;
}
.cadnw-art { display: block; width: 100%; height: 100%; overflow: visible; }
.cadnw-face {
  fill: color-mix(in srgb, var(--cad-bg-menu) 86%, transparent);
  stroke: var(--cad-border-soft);
  stroke-width: 1.5;
  opacity: var(--cadnw-opacity);
}
.cadnw-wedge { cursor: pointer; }
.cadnw-shape {
  fill: var(--cad-bg-panel);
  stroke: var(--cad-border-soft);
  stroke-width: 1;
  opacity: var(--cadnw-opacity);
  transition: fill 0.08s;
}
.cadnw-hub .cadnw-shape { fill: var(--cad-bg-panel-title); }
.cadnw-wedge[data-hot] .cadnw-shape { fill: var(--cad-accent); opacity: 1; }
.cadnw-icon { fill: none; stroke: var(--cad-text); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; pointer-events: none; }
.cadnw-hub .cadnw-icon path { fill: var(--cad-text); stroke: none; }
.cadnw-label {
  fill: var(--cad-text);
  font: 600 13px/1 system-ui, sans-serif;
  letter-spacing: 0.02em;
  pointer-events: none;
}
.cadnw-label-small { font-size: 11px; }
.cadnw-wedge[data-hot] .cadnw-label { fill: var(--cad-accent-text); }
.cadnw-wedge[data-hot] .cadnw-icon { stroke: var(--cad-accent-text); }
.cadnw-wedge.cadnw-hub[data-hot] .cadnw-icon path { fill: var(--cad-accent-text); }
.cadnw-btn { cursor: pointer; }
.cadnw-btn circle { fill: var(--cad-bg-menu); stroke: var(--cad-border-soft); stroke-width: 1; }
.cadnw-btn path { fill: none; stroke: var(--cad-text); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.cadnw-btn[data-hot] circle { fill: var(--cad-accent); stroke: var(--cad-accent); }
.cadnw-btn[data-hot] path { stroke: var(--cad-accent-text); }

/* A tool at work: the wheel is out of sight (it keeps the pointer) and the cursor tells the tool. */
.cadnw-wheel.cadnw-busy { opacity: 0; }
.cadnw-wheel.cadnw-busy[data-tool="pan"] { cursor: grabbing; }
.cadnw-wheel.cadnw-busy[data-tool="zoom"] { cursor: zoom-in; }
.cadnw-wheel.cadnw-busy[data-tool="rewind"] { cursor: ew-resize; }

.cadnw-tip,
.cadnw-cursor,
.cadnw-balloon {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-width: 280px;
  padding: 5px 8px;
  border: 1px solid var(--cad-border-soft);
  border-radius: 3px;
  background: var(--cad-bg-tooltip);
  color: var(--cad-text);
  box-shadow: var(--cad-shadow);
  font-size: 12px;
  line-height: 1.4;
  pointer-events: none;
  white-space: normal;
}
.cadnw-tip[hidden],
.cadnw-cursor[hidden],
.cadnw-balloon[hidden],
.cadnw-pivot[hidden],
.cadnw-rewind[hidden] { display: none; }
.cadnw-tip strong,
.cadnw-cursor strong,
.cadnw-balloon strong { font-weight: 600; }
.cadnw-tip span,
.cadnw-cursor span,
.cadnw-balloon span { color: var(--cad-text-muted); }
.cadnw-cursor { max-width: 240px; padding: 3px 6px; font-size: 11px; }
.cadnw-balloon { max-width: 260px; border-color: var(--cad-accent); }

/* The zoom tool's pivot: where the tool was pressed. */
.cadnw-pivot {
  position: absolute;
  left: -9px;
  top: -9px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--cad-success);
  border-radius: 50%;
  background: radial-gradient(circle, var(--cad-success) 0 2px, transparent 3px);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

/* The rewind strip: one frame per view, the bracket on the view shown. */
.cadnw-rewind { position: absolute; left: 0; top: 0; height: 76px; pointer-events: none; }
.cadnw-frame {
  position: absolute;
  top: 8px;
  width: 88px;
  height: 60px;
  border: 1px solid var(--cad-border-soft);
  background: color-mix(in srgb, var(--cad-bg-menu) 82%, transparent);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}
.cadnw-frame canvas { display: block; width: 88px; height: 60px; }
.cadnw-frame.cadnw-empty::after {
  content: "";
  position: absolute;
  inset: 18px 30px;
  border: 1px dashed var(--cad-text-disabled);
}
.cadnw-frame.cadnw-at { border-color: var(--cad-accent); }
.cadnw-bracket { position: absolute; left: 0; top: 0; width: 96px; height: 76px; }
.cadnw-bracket::before,
.cadnw-bracket::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 10px;
  border: 3px solid var(--cad-accent);
}
.cadnw-bracket::before { left: 0; border-right: 0; }
.cadnw-bracket::after { right: 0; border-left: 0; }

/* 시작 시 고정된 휠 표시: the pinned wheel at the lower left of the drawing area. */
.cad-overlay > .cadnw-pinned {
  position: absolute;
  left: 12px;
  bottom: 118px;
  z-index: 4;
  width: 56px;
  height: 56px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  opacity: 0.75;
  --cadnw-opacity: 0.85;
}
.cad-overlay > .cadnw-pinned[hidden] { display: none; }
.cadnw-pinned:hover,
.cadnw-pinned:focus-visible { opacity: 1; }
.cadnw-pinned .cadnw-wedge { cursor: pointer; }
.cadnw-pinned-tip {
  position: absolute;
  left: 64px;
  bottom: 4px;
  width: 220px;
  padding: 5px 8px;
  border: 1px solid var(--cad-accent);
  border-radius: 3px;
  background: var(--cad-bg-tooltip);
  color: var(--cad-text);
  box-shadow: var(--cad-shadow);
  font-size: 12px;
  line-height: 1.4;
  text-align: left;
  visibility: hidden;
  pointer-events: none;
}
.cadnw-pinned:hover .cadnw-pinned-tip,
.cadnw-pinned:focus-visible .cadnw-pinned-tip { visibility: visible; }

/* The navigation bar's wheel button while the wheel is shown. */
#cad-navbar .cads-nav-btn[data-command="NAVSWHEEL"][aria-pressed="true"] {
  background: var(--cad-bg-toggle-on);
  border-color: var(--cad-accent);
}

/* 스티어링 휠 설정 */
.cadnw-settings .cadnw-slider { justify-content: flex-start; }
.cadnw-settings .cadnw-slider .cads-field-label { flex: 0 0 112px; }
.cadnw-settings .cadnw-slider small { color: var(--cad-text-muted); }
.cadnw-settings .cadnw-slider .cads-range { width: 130px; flex: 0 1 130px; }
.cadnw-value { min-width: 36px; text-align: right; color: var(--cad-text-muted); }
.cadnw-restore { display: flex; justify-content: flex-end; }