.aero-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    height: 2.5rem;
    cursor: pointer;
    transition: background-color 0.2s, opacity 0.2s;
    border: none;
    text-decoration: none;
  }
  
  .aero-btn:focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 2px;
  }
  
  .aero-btn:disabled {
    opacity: 0.5;
    pointer-events: none;
  }
  
  /* Primary Default */
  .aero-btn {
    background-color: var(--primary);
    color: var(--primary-foreground);
  }
  .aero-btn:hover { opacity: 0.9; }
  
  /* Outline Variant */
  .aero-btn.outline {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--foreground);
  }
  .aero-btn.outline:hover { background-color: var(--muted); }
  
  /* Ghost Variant */
  .aero-btn.ghost {
    background-color: transparent;
    color: var(--foreground);
  }
  .aero-btn.ghost:hover { background-color: var(--muted); }