/* ── Playground page ─────────────────────────────────────────── */

.pg {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 57px);          /* full viewport minus header */
  overflow: hidden;
}

/* ── Toolbar ──────────────────────────────────────────────────── */
.pg-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.pg-sep {
  width: 1px;
  height: 24px;
  background: var(--text-dim);
  opacity: .35;
  flex-shrink: 0;
}

/* Upload button */
.pg-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.pg-upload-btn:hover {
  border-color: var(--accent);
  background: rgba(88,166,255,.08);
}

/* Mode toggle buttons */
.pg-modes {
  display: flex;
  gap: 4px;
}
.pg-mode {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.pg-mode:hover {
  border-color: var(--text-dim);
  color: var(--text);
}
.pg-mode.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(88,166,255,.1);
}

.pg-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.pg-dot--fg { background: var(--green); }
.pg-dot--bg { background: var(--red); }

/* Small controls */
.pg-select {
  padding: 5px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font);
  outline: none;
}
.pg-select:focus { border-color: var(--accent); }

.pg-inline-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--text);
  font-weight: 600;
}
.pg-input-sm {
  width: 54px;
  padding: 5px 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--mono);
  outline: none;
}
.pg-input-sm:focus { border-color: var(--accent); }

/* Action buttons */
.pg-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: 12px;
  cursor: pointer;
  transition: all .15s;
}
.pg-action:hover {
  border-color: var(--text-dim);
  color: var(--text);
}
.pg-action:disabled {
  opacity: .4;
  cursor: not-allowed;
}
.pg-action--run {
  border-color: var(--green);
  color: var(--green);
}
.pg-action--run:hover:not(:disabled) {
  background: rgba(63,185,80,.12);
}

.pg-status {
  margin-left: auto;
  font-size: 12px;
  font-family: var(--mono);
  color: var(--text-dim);
}
.pg-status.error { color: var(--red); }
.pg-status.success { color: var(--green); }

/* ── Canvas area ─────────────────────────────────────────────── */
.pg-canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.pg-canvas-wrap canvas {
  display: none;
  cursor: crosshair;
}
.pg-canvas-wrap canvas.visible {
  display: block;
}

/* Drop zone highlight */
.pg-canvas-wrap.dragover {
  outline: 2px dashed var(--accent);
  outline-offset: -4px;
  background: rgba(88,166,255,.04);
}

/* Placeholder */
.pg-placeholder {
  text-align: center;
  color: var(--text-dim);
  user-select: none;
}
.pg-placeholder svg {
  opacity: .25;
  margin-bottom: 12px;
}
.pg-placeholder p {
  font-size: 15px;
  margin-bottom: 4px;
}
.pg-placeholder__hint {
  font-size: 12px;
  opacity: .6;
}

/* ── Hotkey hints footer ─────────────────────────────────────── */
.pg-hints {
  display: flex;
  gap: 16px;
  padding: 6px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  font-size: 11px;
  color: var(--text-dim);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.pg-hints kbd {
  display: inline-block;
  padding: 1px 5px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 10px;
  margin-right: 2px;
}

/* ── Box drawing cursor ──────────────────────────────────────── */
.pg-canvas-wrap canvas.mode-box {
  cursor: crosshair;
}