/* Botões */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font: inherit;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-bg-hover);
}

.btn-danger {
  background: var(--color-red-visual);
  color: #ffffff;
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-red);
}

.btn-ghost {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-3);
  border-color: var(--border-strong);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12.5px;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Botão só-ícone (ações de linha, fechar modal, refresh) */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 15px;
  transition: background var(--transition), color var(--transition);
}

.btn-icon:hover {
  background: var(--surface-3);
  color: var(--text);
}

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

.btn-icon-success:hover {
  background: var(--color-teal-dim);
  color: var(--color-teal);
}

.btn:focus-visible,
.btn-icon:focus-visible,
.sidebar-item:focus-visible,
.tab:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
}