/* ─── SVG STATES ─── */
.sn {
  cursor: inherit;
}

.sn circle.bd {
  fill: var(--surface);
  stroke: var(--border2);
  stroke-width: 1.5;
  transition: fill .15s, stroke .15s;
}

.sn:hover circle.bd {
  fill: var(--surface2);
  stroke: var(--accent);
}

.sn.start-st circle.bd {
  stroke: var(--green);
}

.sn.acc-st circle.bd {
  stroke: var(--gold);
}

.sn.act-st circle.bd {
  fill: var(--state-active-fill);
  stroke: var(--accent);
  filter: var(--state-active-shadow);
}

.sn.rej-st circle.bd {
  fill: var(--state-reject-fill);
  stroke: var(--red);
}

.sn.sel-st circle.bd {
  stroke: var(--purple);
  stroke-width: 2.5;
}

/* ─── Dead / Unreachable State Overlay ─── */
.sn.unreachable-st circle.bd {
  stroke: var(--orange, #ff9800);
  stroke-width: 2;
  stroke-dasharray: 5 3;
  fill: var(--bg3);
  opacity: 0.55;
}

.sn.dead-st circle.bd {
  stroke: var(--text3);
  stroke-width: 2;
  stroke-dasharray: 4 4;
  fill: var(--bg2);
  opacity: 0.6;
}

.sn.unreachable-st .slbl,
.sn.dead-st .slbl {
  opacity: 0.55;
}

.slbl {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--text);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.mooreout {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  fill: var(--green);
  text-anchor: middle;
  dominant-baseline: central;
  pointer-events: none;
}

.edge-g {
  cursor: pointer;
}

.tarr {
  stroke: var(--text3);
  stroke-width: 1.5;
  fill: none;
  marker-end: url(#arr);
  pointer-events: none;
  transition: stroke 0.15s;
}

.tarr-hit {
  stroke: transparent;
  stroke-width: 16;
  fill: none;
  pointer-events: stroke;
}

.edge-g:hover .tarr {
  stroke: var(--accent);
}

.edge-g.sel-t .tarr {
  stroke: var(--purple);
  stroke-width: 2.5;
}

.tarr.act-t {
  stroke: var(--accent);
}

.tlbl {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  fill: var(--text2);
  text-anchor: middle;
  pointer-events: none;
  paint-order: stroke fill;
  stroke: var(--bg);
  stroke-width: 4.5px;
  stroke-linecap: round;
  stroke-linejoin: round;
}


/* ─── CANVAS INTERACTIONS ─── */
[data-tool="pointer"] .sn {
  cursor: default;
}

[data-tool="move"] .sn {
  cursor: grab;
}

[data-tool="move"].panning .sn,
[data-tool="move"].panning #svgCanvas {
  cursor: grabbing !important;
}

[data-tool="state"] .sn {
  cursor: default;
}

[data-tool="trans"] .sn {
  cursor: crosshair;
}

[data-tool="del"] .sn {
  cursor: not-allowed;
}

[data-tool="del"] .edge-g {
  cursor: not-allowed;
}


.marquee-rect {
  fill: var(--marquee-fill);
  stroke: var(--accent);
  stroke-dasharray: 4, 4;
  pointer-events: none;
}

.cam-smooth,
.cam-smooth::before {
  transition: transform 0.25s cubic-bezier(0.2, 0, 0, 1), background-position 0.25s cubic-bezier(0.2, 0, 0, 1), background-size 0.25s cubic-bezier(0.2, 0, 0, 1);
}

/* ─── CANVAS TOOLBOX ─── */
.canvas-toolbox {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 50;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 8px;
  box-shadow: var(--shadow-md);
  user-select: none;
  width: max-content;
  box-sizing: border-box;
  transition: opacity .15s ease, box-shadow .15s ease, transform .15s ease;
}

.canvas-toolbox.dragging {
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  opacity: .88;
}

.canvas-toolbox.dragging,
.canvas-toolbox.dragging * {
  cursor: grabbing !important;
}

#canvas-wrap.space-pan,
#canvas-wrap.space-pan #svgCanvas,
#canvas-wrap.space-pan .sn,
#canvas-wrap.space-pan .edge-g {
  cursor: grab !important;
}

#canvas-wrap.space-pan.panning,
#canvas-wrap.space-pan.panning #svgCanvas,
#canvas-wrap.space-pan.panning .sn,
#canvas-wrap.space-pan.panning .edge-g {
  cursor: grabbing !important;
}

.canvas-toolbox[data-dock="top"],
.canvas-toolbox[data-dock="bottom"] {
  flex-direction: row;
  align-items: center;
  min-width: 360px;
  max-width: calc(100% - 24px);
  padding: 10px 12px;
  gap: 6px;
  overflow-x: auto;
  overflow-y: hidden;
}

.canvas-toolbox[data-dock="left"],
.canvas-toolbox[data-dock="right"] {
  flex-direction: column;
  align-items: stretch;
  max-width: none;
  overflow-x: hidden;
  overflow-y: auto;
}

.canvas-toolbox[data-dock="left"],
.canvas-toolbox[data-dock="right"] {
  padding: 10px;
}

.canvas-toolbox[data-dock="top"] .toolbox-btn,
.canvas-toolbox[data-dock="bottom"] .toolbox-btn {
  min-width: 72px;
  padding: 9px 12px;
}

.canvas-toolbox[data-dock="top"] .toolbox-kbd,
.canvas-toolbox[data-dock="bottom"] .toolbox-kbd {
  letter-spacing: .03em;
}

.canvas-toolbox[data-dock="top"] .toolbox-sep,
.canvas-toolbox[data-dock="bottom"] .toolbox-sep {
  width: 1px;
  height: 20px;
  margin: 0 6px;
}

.canvas-toolbox[data-dock="left"] .toolbox-sep,
.canvas-toolbox[data-dock="right"] .toolbox-sep {
  width: 20px;
  height: 1px;
  margin: 6px auto;
}

.toolbox-grip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 32px;
  padding: 0;
  border: 1px solid var(--border2);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,0)), var(--bg3);
  color: var(--text3);
  cursor: grab;
  flex: none;
  touch-action: none;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04);
}

.toolbox-grip:hover {
  background: var(--surface);
  color: var(--text);
}

.canvas-toolbox[data-dock="top"] .toolbox-grip,
.canvas-toolbox[data-dock="bottom"] .toolbox-grip,
.canvas-toolbox[data-dock="floating"] .toolbox-grip {
  width: 32px;
  min-height: 32px;
  margin-right: 2px;
}

.canvas-toolbox[data-dock="left"] .toolbox-grip,
.canvas-toolbox[data-dock="right"] .toolbox-grip {
  margin-bottom: 4px;
}

.canvas-toolbox.dragging .toolbox-grip {
  cursor: grabbing;
}

.toolbar-preview {
  opacity: 0;
  pointer-events: none;
  z-index: 49;
  border-style: dashed;
  border-color: var(--accent-border-strong);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  filter: saturate(.95);
}

.toolbar-preview.visible {
  opacity: .38;
}

.toolbox-grip svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.toolbox-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 8px 10px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  cursor: pointer;
  color: var(--text2);
  transition: all var(--transition-fast);
  min-width: 52px;
}

.toolbox-btn:hover {
  background: var(--surface);
  color: var(--text);
}

.toolbox-btn.active {
  background: var(--surface2);
  color: var(--accent);
  border-color: var(--accent-border-strong);
}

.toolbox-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
}

.toolbox-lbl {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .05em;
}

.toolbox-kbd {
  font-family: var(--mono);
  font-size: .55rem;
  color: var(--text3);
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 3px;
  padding: 1px 4px;
}

.toolbox-sep {
  width: 20px;
  height: 1px;
  background: var(--border);
  margin: 6px auto;
}

.toolbox-btn.toolbox-danger {
  color: var(--text3);
}

.toolbox-btn.toolbox-danger:hover {
  background: var(--red-soft);
  color: var(--red);
  border-color: var(--red-border);
}

.toolbox-btn.toolbox-danger.active {
  background: var(--red-soft);
  color: var(--red);
  border-color: var(--red-border);
}

/* ─── CANVAS NAV CONTROLS ─── */
.canvas-nav-controls {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  gap: 2px;
  z-index: 50;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px;
  box-shadow: var(--shadow-sm);
}

.cnc-btn {
  width: 28px;
  height: 28px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 5px;
  cursor: pointer;
  color: var(--text2);
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.cnc-btn:hover {
  background: var(--surface);
  color: var(--text);
}

.cnc-btn svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.cnc-zoom-input {
  background: transparent;
  border: 1px solid transparent;
  width: 44px;
  color: var(--text3);
  font-family: var(--mono);
  font-size: .65rem;
  text-align: center;
  padding: 0 2px;
  border-radius: 4px;
  transition: all var(--transition-fast);
  cursor: text;
}

.cnc-zoom-input:hover {
  background: var(--surface);
  border-color: var(--border2);
}

.cnc-zoom-input:focus {
  outline: none;
  background: var(--bg3);
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 0 2px rgba(79, 195, 247, 0.15);
}

.cnc-sep {
  width: 1px;
  height: 18px;
  background: var(--border2);
  margin: 0 2px;
}

/* ─── MINIMAP ─── */
.minimap-container {
  position: absolute;
  bottom: 56px;
  right: 14px;
  z-index: 50;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: opacity var(--transition-fast);
}

.minimap-container.minimap-hidden {
  display: none;
}

.minimap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 8px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}

.minimap-title {
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text3);
}

.minimap-toggle {
  width: 18px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text3);
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  padding: 0;
}

.minimap-toggle:hover {
  color: var(--text);
}

.minimap-canvas {
  display: block;
  cursor: pointer;
  width: 160px;
  height: 100px;
}

.minimap-show-btn {
  position: absolute;
  bottom: 56px;
  right: 14px;
  z-index: 50;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: .6rem;
  color: var(--text3);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.minimap-show-btn:hover {
  color: var(--text);
  background: var(--surface);
}

@media (max-width: 900px) {
  .canvas-toolbox {
    top: auto;
    bottom: 12px;
    left: 12px;
    transform: none;
    flex-direction: row;
    align-items: stretch;
    max-width: calc(100% - 116px);
    overflow-x: auto;
    padding: 4px;
  }

  .toolbox-sep {
    width: 1px;
    height: 100%;
    min-height: 22px;
    margin: 0 2px;
  }

  .toolbox-btn {
    min-width: 46px;
    padding: 7px 8px;
  }

  .toolbox-kbd {
    display: none;
  }

  .canvas-nav-controls {
    right: 12px;
    bottom: 12px;
  }

  .minimap-container {
    right: 12px;
    bottom: 56px;
  }

  .minimap-canvas {
    width: 120px;
    height: 75px;
  }

  .minimap-show-btn {
    right: 12px;
    bottom: 56px;
  }
}

@media (max-width: 640px) {
  .toolbox-lbl {
    font-size: .55rem;
  }

  .cnc-zoom-input {
    width: 38px;
  }

  .minimap-container {
    display: none;
  }

  .minimap-show-btn {
    display: none !important;
  }
}