/* --------------------------------------------------------------------------
   StockFlow — variantes e composições de componentes
   --------------------------------------------------------------------------
   Apenas modificadores, composições e utilitários reutilizáveis.
   A aparência básica pertence exclusivamente a design-system.css.
---------------------------------------------------------------------------- */

/* Contratos de componentes — Fase 2 --------------------------------------
   Estes contratos são a base para a migração página a página. Classes
   antigas continuam válidas, mas novos templates devem preferir estes
   modificadores semânticos e não introduzir cores ou dimensões literais. */

.sf-page-section + .sf-page-section {
  margin-top: var(--sf-section-gap);
}

.sf-auto-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, var(--sf-grid-min-column)), 1fr));
  gap: var(--sf-spacing-4);
}

.sf-card--flat {
  box-shadow: none;
}

.sf-card--interactive {
  transition: var(--sf-transition-interactive);
}

.sf-card--interactive:hover {
  border-color: color-mix(in srgb, var(--sf-primary) 24%, var(--sf-border));
  box-shadow: var(--sf-shadow-raised);
  transform: translateY(-2px);
}

.sf-card--muted {
  background: var(--sf-surface-alt);
  box-shadow: none;
}

.sf-card--selected {
  border-color: color-mix(in srgb, var(--sf-primary) 44%, var(--sf-border));
  background: var(--sf-surface-selected);
}

.sf-btn-ghost {
  border-color: transparent;
  color: var(--sf-text-secondary);
  background: transparent;
}

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

.sf-btn-outline {
  border-color: var(--sf-primary);
  color: var(--sf-primary);
  background: transparent;
}

.sf-btn-outline:hover {
  color: var(--sf-text-on-primary);
  background: var(--sf-primary);
}

.sf-btn-lg {
  min-height: var(--sf-control-height-lg);
  padding-inline: var(--sf-spacing-5);
  font-size: var(--sf-font-size-md);
}

.sf-btn-icon {
  width: var(--sf-control-height);
  min-width: var(--sf-control-height);
  padding: 0;
}

.sf-btn:disabled,
.sf-btn[aria-disabled="true"],
.sf-icon-btn:disabled,
.sf-icon-btn[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: .56;
  pointer-events: none;
  transform: none;
}

.sf-btn[aria-busy="true"] {
  cursor: progress;
}

.sf-btn:focus-visible,
.sf-icon-btn:focus-visible,
.sf-profile-button:focus-visible,
.sf-input:focus-visible,
.sf-select:focus-visible,
.sf-textarea:focus-visible,
.sf-check-input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--sf-ring);
}

.sf-field-row {
  display: flex;
  align-items: flex-end;
  gap: var(--sf-spacing-3);
}

.sf-field-row > .sf-field {
  flex: 1 1 12rem;
}

.sf-field-hint,
.sf-field-error {
  display: block;
  margin-top: var(--sf-spacing-1);
  font-size: var(--sf-font-size-xs);
  line-height: var(--sf-line-height-normal);
}

.sf-field-hint {
  color: var(--sf-text-muted);
}

.sf-field-error {
  color: var(--sf-danger-text);
  font-weight: var(--sf-font-weight-semibold);
}

.sf-input[aria-invalid="true"],
.sf-select[aria-invalid="true"],
.sf-textarea[aria-invalid="true"] {
  border-color: var(--sf-danger);
}

.sf-input[aria-invalid="true"]:focus-visible,
.sf-select[aria-invalid="true"]:focus-visible,
.sf-textarea[aria-invalid="true"]:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sf-danger) 20%, transparent);
}

.sf-input-group {
  display: flex;
  align-items: stretch;
  width: 100%;
}

.sf-input-group > .sf-input,
.sf-input-group > .sf-select {
  min-width: 0;
  border-radius: 0;
}

.sf-input-group > :first-child {
  border-top-left-radius: var(--sf-radius-sm);
  border-bottom-left-radius: var(--sf-radius-sm);
}

.sf-input-group > :last-child {
  border-top-right-radius: var(--sf-radius-sm);
  border-bottom-right-radius: var(--sf-radius-sm);
}

.sf-input-group > :not(:first-child) {
  margin-left: -1px;
}

.sf-badge-neutral {
  border-color: var(--sf-border);
  color: var(--sf-text-secondary);
  background: var(--sf-surface-alt);
}

.sf-badge-dot::before {
  content: '';
  width: .42rem;
  height: .42rem;
  border-radius: var(--sf-radius-pill);
  background: currentColor;
}

.sf-alert-content {
  min-width: 0;
  flex: 1 1 auto;
}

.sf-alert-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: wrap;
  gap: var(--sf-spacing-2);
  margin-left: auto;
}

.sf-empty-state-icon {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--sf-spacing-3);
  border-radius: var(--sf-radius-lg);
  color: var(--sf-primary);
  background: var(--sf-primary-soft);
}

.sf-empty-state-title {
  margin: 0;
  color: var(--sf-text);
  font-size: var(--sf-font-size-md);
  font-weight: var(--sf-font-weight-extrabold);
}

.sf-empty-state-description {
  max-width: 34rem;
  margin: var(--sf-spacing-2) auto 0;
  color: var(--sf-text-secondary);
  font-size: var(--sf-font-size-sm);
  line-height: var(--sf-line-height-normal);
}

.sf-empty-state-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sf-spacing-2);
  margin-top: var(--sf-spacing-4);
}

.sf-divider {
  height: 1px;
  margin-block: var(--sf-spacing-4);
  border: 0;
  background: var(--sf-border);
}

.sf-skeleton {
  overflow: hidden;
  border-radius: var(--sf-radius-xs);
  background: var(--sf-surface-muted);
}

.sf-skeleton::after {
  content: '';
  display: block;
  width: 42%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    color-mix(in srgb, var(--sf-surface) 72%, transparent),
    transparent
  );
  animation: sf-skeleton-sweep 1.35s ease-in-out infinite;
}

@keyframes sf-skeleton-sweep {
  from { transform: translateX(-120%); }
  to { transform: translateX(340%); }
}

@media (prefers-reduced-motion: reduce) {
  .sf-skeleton::after {
    animation: none;
  }

  .sf-card--interactive,
  .sf-btn,
  .sf-icon-btn,
  .sf-profile-button {
    transition: none;
  }
}

/* Fase 17: utilitários semânticos substituem dependências Tailwind legadas. */
.sf-icon {
  display: block;
  flex: 0 0 auto;
}

.sf-icon--sm {
  width: 1.25rem;
  height: 1.25rem;
}

.sf-icon--md {
  width: 1.5rem;
  height: 1.5rem;
}

.sf-text-sm {
  font-size: var(--sf-font-size-sm);
}

.sf-text-center {
  text-align: center;
}

.sf-font-mono {
  font-family:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.sf-field--full {
  grid-column: 1 / -1;
}

@media (min-width: 768px) {
  .sf-grid-span-2-md {
    grid-column: span 2 / span 2;
  }
}

@media (min-width: 1280px) {
  .sf-grid-span-3-xl {
    grid-column: span 3 / span 3;
  }
}

/* As garantias estruturais genéricas foram consolidadas em design-system.css. */