.demo-controls-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  background: rgba(13, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(99, 102, 241, 0.25);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7), 0 0 20px rgba(99, 102, 241, 0.1);
  border-radius: var(--radius-lg);
  width: 320px;
  overflow: hidden;
  transition: all var(--duration-slow) var(--ease-out);
  font-family: var(--font-mono);
}

.demo-controls-panel.collapsed {
  width: 160px;
  height: 40px;
  border-color: rgba(255,255,255,0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  background: rgba(13, 13, 22, 0.95);
  cursor: pointer;
}

.demo-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(99, 102, 241, 0.08);
  border-bottom: 1px solid rgba(99, 102, 241, 0.15);
  user-select: none;
}

.demo-controls-panel.collapsed .demo-header-bar {
  border-bottom: none;
  background: transparent;
  height: 100%;
  padding: 0 14px;
}

.demo-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.demo-pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: demoPulse 2s infinite;
}

@keyframes demoPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; transform: scale(1.1); }
}

.demo-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  border-radius: var(--radius-sm);
  transition: all var(--duration-fast);
}

.demo-toggle-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.demo-controls-panel.collapsed .demo-toggle-btn {
  transform: rotate(180deg);
}

.demo-content-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: opacity var(--duration-base);
}

.demo-controls-panel.collapsed .demo-content-body {
  display: none;
}

.demo-section-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 4px;
}

.demo-btn-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.demo-action-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-default);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
}

.demo-action-btn:hover {
  background: rgba(99, 102, 241, 0.08);
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.15);
  transform: translateX(2px);
}

.demo-action-btn i, .demo-action-btn svg {
  width: 14px;
  height: 14px;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.demo-action-btn:hover i, .demo-action-btn:hover svg {
  color: var(--accent);
}

.demo-btn-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 4px 0;
}

.demo-action-btn.btn-reset {
  color: var(--text-secondary);
}

.demo-action-btn.btn-reset:hover {
  background: rgba(239, 68, 68, 0.08);
  border-color: var(--red);
  color: #ff8888;
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.15);
}

.demo-action-btn.btn-reset:hover i, .demo-action-btn.btn-reset:hover svg {
  color: var(--red);
}