/* ═══════════════════════════════════════════════════════
   SCENE CANVAS MODE — Blender-node / Godot palette style
   ═══════════════════════════════════════════════════════ */

/* ── Root layout ──────────────────────────────────── */
#sc-canvas-root {
  display: flex;
  flex-direction: column;
  width: 100%;
  height: 100%;
  background: var(--bg);
  overflow: hidden;
}

/* ── Toolbar ──────────────────────────────────────── */
#sc-canvas-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  flex-shrink: 0;
  flex-wrap: wrap;
  z-index: 20;
}

/* ── Body: palette + viewport ─────────────────────── */
#sc-canvas-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Palette panel ────────────────────────────────── */
#sc-canvas-palette {
  width: 174px;
  flex-shrink: 0;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 10;
}

.sc-pal-hdr {
  padding: 8px 10px 6px;
  font-size: 8px;
  letter-spacing: .18em;
  color: var(--text3);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sc-pal-search {
  margin: 6px 8px;
  padding: 4px 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--text);
  font-family: var(--font);
  font-size: 9px;
  outline: none;
  flex-shrink: 0;
  transition: border-color .15s;
}
.sc-pal-search:focus { border-color: var(--accent2); }

#sc-pal-list {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 12px;
}

.sc-pal-group {
  padding: 6px 10px 2px;
  font-size: 7px;
  letter-spacing: .18em;
  color: var(--text3);
  text-transform: uppercase;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}
.sc-pal-group:first-child { border-top: none; margin-top: 0; }

.sc-pal-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  cursor: grab;
  font-size: 9px;
  color: var(--text2);
  letter-spacing: .04em;
  transition: background .12s, color .12s;
  user-select: none;
  border-left: 2px solid transparent;
}
.sc-pal-item:hover {
  background: var(--bg3);
  color: var(--text);
  border-left-color: var(--accent2);
}
.sc-pal-item:active { cursor: grabbing; }
.sc-pal-item-dragging { opacity: .5; }

.sc-pal-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.sc-pal-ico { font-size: 11px; flex-shrink: 0; line-height: 1; display: flex; }
.sc-pal-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Canvas viewport ──────────────────────────────── */
#sc-canvas-vp {
  flex: 1;
  position: relative;
  overflow: hidden;
  cursor: grab;
  background: var(--bg);
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 24px 24px;
}
#sc-canvas-vp:active { cursor: grabbing; }

/* grid overlay badge */
#sc-canvas-vp::after {
  content: 'DRAG · SCROLL=ZOOM · RMB LINE=DISCONNECT';
  position: absolute; bottom: 10px; right: 12px;
  font-size: 7px; letter-spacing: .08em; color: var(--text3);
  border: 1px solid var(--border); padding: 2px 7px; border-radius: 1px;
  pointer-events: none; opacity: .4;
}

#sc-canvas-world {
  position: absolute;
  top: 0; left: 0;
  width: 0; height: 0;
  transform-origin: 0 0;
}

/* ── Node cards ───────────────────────────────────── */
.sc-cvs-node {
  position: absolute;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 3px;
  box-shadow: 0 2px 14px rgba(0,0,0,.4);
  transition: box-shadow .18s, border-color .18s;
  z-index: 10;
  min-height: 52px;
  user-select: none;
}
.sc-cvs-node:hover {
  border-color: var(--border2);
  box-shadow: 0 6px 28px rgba(0,0,0,.55);
}
.sc-cvs-node-root {
  box-shadow: 0 0 0 2px var(--accent), 0 4px 20px rgba(0,0,0,.5);
}
.sc-cvs-node-sel {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 1px var(--accent), 0 6px 24px rgba(0,0,0,.55) !important;
}

/* card header */
.sc-cvs-hdr {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 8px;
  height: 32px;
  cursor: grab;
  border-bottom: 1px solid rgba(255,255,255,.06);
  border-radius: 2px 2px 0 0;
  position: relative;
}
.sc-cvs-hdr:active { cursor: grabbing; }

.sc-cvs-type {
  font-size: 13px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.sc-cvs-name {
  flex: 1;
  font-size: 10px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: .04em;
}
.sc-cvs-script-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background .2s;
}
.sc-cvs-del {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  padding: 2px 3px;
  opacity: .5;
  transition: opacity .12s, color .12s;
  line-height: 1;
  flex-shrink: 0;
}
.sc-cvs-del:hover { opacity: 1; color: var(--accent3); }

/* card body */
.sc-cvs-body {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px 6px;
  flex-wrap: wrap;
  min-height: 20px;
}
.sc-cvs-typestr {
  font-size: 8px;
  letter-spacing: .08em;
  opacity: .75;
  flex-shrink: 0;
}
.sc-cvs-children-badge {
  font-size: 7px;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--border);
  border-radius: 1px;
  padding: 1px 5px;
  color: var(--text3);
  letter-spacing: .04em;
  flex-shrink: 0;
}
.sc-cvs-nid {
  font-size: 8px;
  color: var(--text3);
  letter-spacing: .06em;
  margin-left: auto;
  opacity: .7;
}

/* ── Ports ────────────────────────────────────────── */
/* Ports are now rendered as a single draggable dot that appears
   centered on the card edge closest to hovered direction.
   The fixed in/out dots are kept for drag interaction but hidden visually
   until hover, then shown as a ring on the right edge (out) and left (in). */
.sc-cvs-port {
  position: absolute;
  width: 13px; height: 13px;
  border-radius: 50%;
  border: 2px solid;
  background: var(--bg2);
  cursor: crosshair;
  z-index: 30;
  transition: transform .12s, background .12s, opacity .12s;
  opacity: 0;
}
/* Out port: shown center-right, used as drag handle only */
.sc-cvs-port-in {
  left: -7px;
  top: 50%;
  transform: translateY(-50%);
}
.sc-cvs-port-out {
  right: -7px;
  top: 50%;
  transform: translateY(-50%);
}
.sc-cvs-node:hover .sc-cvs-port {
  opacity: 1;
}
.sc-cvs-port:hover {
  transform: translateY(-50%) scale(1.4) !important;
  background: var(--accent2) !important;
}
.sc-cvs-port-out:hover {
  background: var(--accent) !important;
}

/* ── Connection lines (in SVG) ──────────────────────
   Styles are inline in JS; just ensure pointer-events */
#sc-canvas-svg { pointer-events: none; }