.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  height: 38px;
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* --- Primary = Lila --- */
.btn--primary {
  background: var(--color-brand-primary);
  color: #fff;
  border-color: var(--color-brand-primary);
  box-shadow: 0 1px 2px rgba(109, 40, 217, 0.2);
}
.btn--primary:hover:not(:disabled) {
  background: var(--color-brand-primary-hover);
  border-color: var(--color-brand-primary-hover);
  box-shadow: 0 2px 6px rgba(109, 40, 217, 0.3);
}

/* --- Secondary = weißer Button mit Rand --- */
.btn--secondary {
  background: #fff;
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover:not(:disabled) {
  background: var(--color-bg-secondary);
  color: var(--color-brand-primary);
  border-color: var(--color-brand-primary);
}

/* --- Ghost / subtle --- */
.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}
.btn--ghost:hover:not(:disabled) {
  background: var(--color-bg-tertiary);
  color: var(--color-brand-primary);
}

/* --- Success = Grün --- */
.btn--success {
  background: var(--color-brand-accent);
  color: #fff;
  border-color: var(--color-brand-accent);
  box-shadow: 0 1px 2px rgba(16, 185, 129, 0.2);
}
.btn--success:hover:not(:disabled) {
  background: var(--color-brand-accent-hover);
  border-color: var(--color-brand-accent-hover);
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

/* --- Danger --- */
.btn--danger {
  background: var(--color-danger);
  color: #fff;
  border-color: var(--color-danger);
}
.btn--danger:hover:not(:disabled) {
  background: #dc2626;
  border-color: #dc2626;
}

/* --- Sizes --- */
.btn--sm {
  height: 30px;
  padding: 0 var(--space-3);
  font-size: var(--font-size-xs);
}
.btn--lg {
  height: 44px;
  padding: 0 var(--space-5);
  font-size: var(--font-size-md);
}
.btn--block {
  display: flex;
  width: 100%;
}