/* ============================================
   BUTTONS - Generic styles for legacy classes
   ============================================ */
button { font-family: inherit; }
.btn-optimize-mini,
.btn-scanner,
.btn-refresh,
.btn-settings {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-gray-100);
  color: var(--color-gray-800);
  box-shadow: var(--shadow-sm);
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.btn-optimize-mini:hover,
.btn-scanner:hover,
.btn-refresh:hover,
.btn-settings:hover { background: var(--color-gray-200); transform: translateY(-1px); }
.btn-optimize-mini:disabled,
.btn-scanner:disabled,
.btn-refresh:disabled,
.btn-settings:disabled { opacity: .5; cursor: not-allowed; transform: none; }