/* ─── Road SVG Container ─── */
#roadSvg {
  position: absolute;
  top: 0;
  left: 0;
  overflow: visible;
  pointer-events: none;
  z-index: 0;
}

/* ─── Road Segments ─── */
.road-segment {
  stroke: #555;
  stroke-width: 50;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  pointer-events: none;
}

/* Road outline (drawn under the main stroke) */
.road-segment-outline {
  stroke: #333;
  stroke-width: 54;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  pointer-events: none;
}

/* ─── Road Nodes ─── */
.road-node {
  fill: #888;
  stroke: #fff;
  stroke-width: 2;
  pointer-events: none;
}

.road-node.boundary {
  fill: #00b4db;
}

.road-node.deadend {
  fill: #ff5555;
}

.road-node.junction {
  fill: #ffa500;
}

/* ─── Entry Points (boundary snap targets) ─── */
.entry-point {
  fill: rgba(0, 180, 219, 0.25);
  stroke: #00b4db;
  stroke-width: 2;
  stroke-dasharray: 4 2;
  cursor: pointer;
  pointer-events: all;
  transition: fill 0.15s ease;
}

.entry-point:hover {
  fill: rgba(0, 180, 219, 0.5);
}

.entry-point.snapped {
  fill: rgba(0, 180, 219, 0.7);
  stroke-width: 3;
  stroke-dasharray: none;
}

/* ─── Preview (currently drawing) ─── */
.road-preview-line {
  stroke: rgba(0, 180, 219, 0.5);
  stroke-width: 3;
  stroke-dasharray: 8 4;
  fill: none;
  pointer-events: none;
}

.road-preview-road {
  stroke: rgba(100, 100, 100, 0.3);
  stroke-width: 50;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  pointer-events: none;
}

.road-preview-point {
  fill: #00b4db;
  stroke: #fff;
  stroke-width: 2;
  pointer-events: none;
}

.road-preview-cursor {
  fill: none;
  stroke: rgba(0, 180, 219, 0.6);
  stroke-width: 2;
  stroke-dasharray: 3 3;
  pointer-events: none;
}

/* ─── Draft mode preview (straight angular lines) ─── */
.road-preview-road.draft {
  stroke-linejoin: miter;
  stroke-linecap: butt;
}

.road-preview-line.draft {
  stroke-dasharray: 6 6;
  stroke-linejoin: miter;
}

/* ─── Editable highlight (edit mode — yellow tint) ─── */
.road-segment.editable {
  stroke: #b8a030;
  cursor: pointer;
  pointer-events: stroke;
}

.road-segment-outline.editable {
  stroke: #8a7520;
}

/* ─── Edit handles ─── */
.edit-segment-highlight {
  stroke: #ffd740;
  stroke-width: 54;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  opacity: 0.25;
  pointer-events: none;
}

.edit-connection-line {
  stroke: rgba(255, 215, 64, 0.4);
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
  pointer-events: none;
}

.edit-handle {
  stroke: #fff;
  stroke-width: 2;
  cursor: grab;
  pointer-events: all;
  transition: fill 0.1s ease;
}

.edit-handle-node {
  fill: #ffd740;
}

.edit-handle-cp {
  fill: #40c4ff;
}

.edit-handle.selected {
  stroke: #fff;
  stroke-width: 3;
  filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.6));
}

.edit-handle-node.selected {
  fill: #ffab00;
}

.edit-handle-cp.selected {
  fill: #00b0ff;
}

.edit-smoothing-label {
  fill: #fff;
  font-size: 11px;
  text-anchor: middle;
  pointer-events: none;
  font-family: monospace;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
}

/* ─── Snap Indicator ─── */
.snap-indicator {
  fill: none;
  stroke: #5fef8f;
  stroke-width: 2.5;
  pointer-events: none;
}

/* ─── Road Tool Toggle Button ─── */
.road-tool-btn {
  position: fixed;
  bottom: 30px;
  right: 90px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1e1e2e;
  border: 2px solid #333;
  color: #aaa;
  font-size: 18px;
  cursor: pointer;
  z-index: 100;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.road-tool-btn:hover {
  border-color: #00b4db;
  color: #fff;
  background: #252540;
}

.road-tool-btn.active {
  background: #00b4db;
  color: #fff;
  border-color: #00b4db;
  box-shadow: 0 0 12px rgba(0, 180, 219, 0.4);
}

/* ─── Road Edit Button (above create button) ─── */
.road-edit-btn {
  position: fixed;
  bottom: 86px;
  right: 90px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #1e1e2e;
  border: 2px solid #333;
  color: #aaa;
  font-size: 18px;
  cursor: pointer;
  z-index: 100;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.road-edit-btn:hover {
  border-color: #ffd740;
  color: #fff;
  background: #2e2e1e;
}

.road-edit-btn.active {
  background: #ffd740;
  color: #1e1e2e;
  border-color: #ffd740;
  box-shadow: 0 0 12px rgba(255, 215, 64, 0.4);
}

/* ─── Draft Mode Toggle Button ─── */
.road-draft-btn {
  position: fixed;
  bottom: 30px;
  right: 146px;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #1e1e2e;
  border: 2px solid #333;
  color: #aaa;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  z-index: 100;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  font-family: monospace;
}

.road-draft-btn:hover {
  border-color: #00b4db;
  color: #fff;
}

.road-draft-btn.active {
  background: #333;
  color: #00b4db;
  border-color: #00b4db;
}

/* ─── Dead-End Confirmation Modal ─── */
.road-confirm-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: roadBackdropIn 0.15s ease-out;
}

@keyframes roadBackdropIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.road-confirm-modal {
  background: #1e1e2e;
  border-radius: 12px;
  padding: 24px 28px;
  min-width: 340px;
  max-width: 420px;
  color: #e0e0e0;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
  animation: roadModalIn 0.2s ease-out;
}

@keyframes roadModalIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.road-confirm-modal h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
  font-weight: 600;
  color: #ff5555;
}

.road-confirm-modal p {
  margin: 0 0 20px 0;
  font-size: 14px;
  line-height: 1.5;
  color: #aaa;
}

.road-confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.road-confirm-actions button {
  padding: 8px 20px;
  border-radius: 8px;
  border: none;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.road-confirm-actions .btn-cancel {
  background: #333;
  color: #ccc;
}

.road-confirm-actions .btn-cancel:hover {
  background: #444;
}

.road-confirm-actions .btn-confirm {
  background: #ff5555;
  color: #fff;
}

.road-confirm-actions .btn-confirm:hover {
  background: #ff7070;
}

/* ─── Hint Toast ─── */
.road-hint {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  color: #ccc;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 100;
  pointer-events: none;
  white-space: nowrap;
  animation: roadHintIn 0.2s ease-out;
}

@keyframes roadHintIn {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}