.btn,
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border-radius: var(--radius-md);
  padding: 0.5625rem 1rem;
  border: 1px solid transparent;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--shadow-xs);
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    color var(--transition),
    transform var(--transition-fast);
}

.btn:hover,
.btn-primary:hover,
.btn-secondary:hover,
.btn-danger:hover,
.btn-ghost:hover {
  text-decoration: none;
}

.btn:active,
.btn-primary:active,
.btn-secondary:active,
.btn-danger:active,
.btn-ghost:active {
  transform: scale(0.98);
}

.btn,
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn:hover,
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  background: var(--color-bg-muted);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-inverse);
  border-color: var(--color-danger);
}

.btn-danger:hover {
  background: #b91c1c;
  border-color: #b91c1c;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  box-shadow: none;
  border-color: var(--color-border);
}

.btn-ghost:hover {
  background: var(--color-bg-muted);
  color: var(--color-text);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--text-xs);
}

.btn-link {
  color: var(--color-primary);
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  padding: 0;
  box-shadow: none;
}

.btn-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.inline-form {
  display: inline;
  margin: 0;
}

.actions {
  display: flex;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  flex-wrap: wrap;
  align-items: center;
}