/* ═══════════════════════════════
   TOOL BUTTONS & ACCORDION
   ═══════════════════════════════ */

/* Accordion Group wrapper */
.tool-accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tool-group {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--panel-bg);
  overflow: hidden;
  transition: box-shadow var(--transition-fast);
}

.tool-group[open] {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.tool-group-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-color);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  background-color: var(--secondary-color);
  list-style: none; /* Hide default arrow in newer browsers */
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-fast);
}

.tool-group[open] .tool-group-header {
  border-bottom-color: var(--border-color);
  background-color: var(--bg-color);
}

.tool-group-header:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
}

/* Custom expand/collapse arrow using pseudo-element */
.tool-group-header::after {
  content: "▼";
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.2s ease-in-out;
}

.tool-group[open] .tool-group-header::after {
  transform: rotate(-180deg);
  color: var(--primary-color);
}

/* Hide default marker for webkit */
.tool-group-header::-webkit-details-marker {
  display: none;
}

/* Grid padding when open */
.tool-group .tool-grid {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tool-btn {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid transparent;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.tool-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary-color);
  border-color: var(--border-color);
}

.tool-btn:active {
  transform: scale(0.97);
}

.tool-btn .icon {
  font-size: 0.75rem;
  font-weight: 700;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--secondary-color);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.tool-btn:hover .icon {
  background: var(--primary-color);
  color: white;
}

/* ═══════════════════════════════
   BUTTONS
   ═══════════════════════════════ */

.btn {
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition-fast);
  letter-spacing: -0.01em;
}

.btn:active {
  transform: scale(0.97);
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary-color), #7c3aed);
  color: white;
  box-shadow: 0 1px 3px rgba(99, 102, 241, 0.25);
}

.btn.primary:hover {
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
  filter: brightness(1.05);
}

.btn.secondary {
  background-color: var(--secondary-color);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.btn.secondary:hover {
  background-color: var(--secondary-hover);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn.danger {
  background: linear-gradient(135deg, var(--danger-color), #dc2626);
  color: white;
  box-shadow: 0 1px 3px rgba(239, 68, 68, 0.2);
}

.btn.danger:hover {
  box-shadow: 0 2px 8px rgba(239, 68, 68, 0.3);
  filter: brightness(1.05);
}

.full-width {
  width: 100%;
}

/* ═══════════════════════════════
   THEME SWITCH
   ═══════════════════════════════ */

.theme-switch-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}

.theme-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}

.theme-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--border-strong);
  transition: var(--transition-smooth);
  border-radius: 20px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: var(--transition-smooth);
  border-radius: 50%;
  box-shadow: var(--shadow-xs);
}

input:checked + .slider {
  background: linear-gradient(135deg, var(--primary-color), #7c3aed);
}

input:checked + .slider:before {
  transform: translateX(16px);
}