@layer base {
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
  }

  .btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
  }

  .btn:hover {
    text-decoration: none;
  }

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

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

  .btn-secondary {
    background-color: white;
    color: var(--color-gray-700);
    border-color: var(--color-border);
  }

  .btn-secondary:hover {
    background-color: var(--color-gray-50);
  }

  .btn-danger {
    background-color: var(--color-danger);
    color: white;
  }

  .btn-danger:hover {
    background-color: var(--color-danger-hover);
  }

  .btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8125rem;
  }

  .btn-large {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }

  .btn-full {
    width: 100%;
  }
}