/* ═══════════════════════════════════════
   tool-panel.css — Left Tool Panel
═══════════════════════════════════════ */

#tool-panel {
  width: var(--tool-panel-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

/* ── TOOL BUTTONS GRID ─────────────── */
#tool-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  padding: 6px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tool-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  cursor: pointer;
  transition: color var(--transition), background var(--transition), border-color var(--transition);
}
.tool-btn svg {
  width: 18px;
  height: 18px;
  pointer-events: none;
}
.tool-btn:hover {
  color: var(--text-hi);
  background: var(--bg-hover);
  border-color: var(--border);
}
.tool-btn.active {
  color: var(--accent-bright);
  background: var(--bg-selected);
  border-color: var(--accent-dark);
}

/* ── TOOL OPTIONS ──────────────────── */
#tool-options {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px;
}

/* Color section */
.color-section {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.color-stack {
  position: relative;
  width: 52px;
  height: 42px;
  flex-shrink: 0;
}
.color-swatch {
  width: 36px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition);
  position: absolute;
}
.color-swatch:hover { border-color: var(--text-mid); transform: scale(1.05); }
.secondary-swatch {
  bottom: 0;
  right: 0;
  background: white;
  z-index: 1;
}
.primary-swatch {
  top: 0;
  left: 0;
  background: black;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}
.color-actions {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.color-action-btn {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border);
  color: var(--text-mid);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 12px;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}
.color-action-btn:hover { color: var(--text-hi); background: var(--bg-hover); }

/* Tool option groups */
.tool-option-group {
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
  margin-bottom: 2px;
}

/* Filter section */
.filter-section {
  padding-top: 2px;
}

/* Number input in tool panel */
#text-size, .cp-num {
  width: 60px;
}