.me-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  outline: none;
}

.me-button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.me-button--primary {
  color: white;
  background: var(--gradient-primary);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.me-button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.me-button--primary:active {
  transform: translateY(0);
}

.me-button--secondary {
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid var(--color-border);
}

.me-button--secondary:hover {
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.me-button--icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

.me-button--icon:hover {
  color: var(--color-text-primary);
  border-color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.me-button--icon svg {
  width: 20px;
  height: 20px;
  stroke-width: 1.5;
}

.me-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.me-button--loading {
  position: relative;
  color: transparent;
}

.me-button--loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}