/* Button system. Existing legacy classes remain supported by the old CSS files. */
.cgl-button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: var(--cgl-space-2);
  border: 1px solid transparent;
  border-radius: var(--cgl-radius-sm);
  padding: 0 var(--cgl-space-4);
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  transition: background-color var(--cgl-transition-fast), border-color var(--cgl-transition-fast), color var(--cgl-transition-fast), transform var(--cgl-transition-fast), box-shadow var(--cgl-transition-fast);
}

.cgl-button:hover {
  transform: translateY(-1px);
}

.cgl-button-primary {
  background: var(--cgl-brand-primary);
  color: var(--cgl-text-inverse);
  box-shadow: var(--cgl-shadow-xs);
}

.cgl-button-secondary {
  background: var(--cgl-brand-secondary);
  color: var(--cgl-text-inverse);
  box-shadow: var(--cgl-shadow-xs);
}

.cgl-button-subtle {
  background: var(--cgl-surface-card);
  border-color: var(--cgl-border-subtle);
  color: var(--cgl-text-primary);
}

.cgl-button-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--cgl-text-secondary);
}

.cgl-button-danger {
  background: var(--cgl-color-red-600);
  color: var(--cgl-text-inverse);
}

.cgl-icon-button {
  display: inline-grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 1px solid var(--cgl-border-subtle);
  border-radius: var(--cgl-radius-sm);
  background: var(--cgl-surface-card);
  color: var(--cgl-text-primary);
  transition: background-color var(--cgl-transition-fast), border-color var(--cgl-transition-fast), transform var(--cgl-transition-fast);
}

.cgl-icon-button:hover {
  border-color: var(--cgl-border-strong);
  transform: translateY(-1px);
}