/* ═══════════════════════════════════════════════════════════════════
   REMOVER FUNDO  —  módulo isolado (estilo: família .mf / .nl2)
   Padrões obrigatórios deste manual (ver CLAUDE.md):
   - tokens via var(--token), sem hex/rgb locais
   - hover muda apenas background-color/border-color
   - sem transform/scale/box-shadow em hover
   - labels nunca truncam
   ═══════════════════════════════════════════════════════════════════ */

.rf-view {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: calc(100vh - 184px);
  padding: 0;
}

/* ── Overlay full-view durante a chamada de IA (Replicate) ── */
.rf-view-overlay {
  position: absolute;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(5, 3, 10, 0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.rf-view-overlay-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 32px 44px;
  border-radius: var(--radius-2xl);
  background: rgba(20, 17, 32, 0.92);
  border: 1px solid var(--border-mid);
  box-shadow: var(--shadow-lg);
  text-align: center;
  min-width: 280px;
  max-width: 90%;
}

.rf-big-spinner {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-pill);
  border: 4px solid rgba(255, 255, 255, 0.12);
  border-top-color: var(--accent-hi);
  animation: rf-spin 0.8s linear infinite;
}

.rf-view-overlay-card strong {
  color: var(--text);
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: 0;
}

.rf-view-overlay-card span {
  color: var(--muted);
  font-size: var(--text-md);
  line-height: 1.4;
}

.rf-view-overlay-progress {
  width: min(280px, 80%);
  height: 7px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.10);
  overflow: hidden;
  margin-top: 4px;
}

.rf-view-overlay-progress-bar {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi));
  transition: width 0.35s ease;
}

/* Toolbar superior — mesmo template das demais ferramentas */
.rf-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 18px;
  border: 1px solid var(--border-mid);
  background: var(--surface-2);
  border-radius: var(--radius-lg);
}

.rf-toolbar-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}

.rf-toolbar-title-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: rgba(var(--accent-rgb), .14);
  border: 1px solid rgba(var(--accent-rgb), .26);
  display: grid;
  place-items: center;
  color: var(--accent-hi);
  flex: 0 0 auto;
}

.rf-toolbar-title h2 {
  margin: 0;
  color: var(--text);
  font-size: var(--text-xl);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0;
}

.rf-toolbar-title p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.35;
}

.rf-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

/* Layout principal: sidebar de controles + stage de pré-visualização */
.rf-shell {
  display: flex;
  gap: 18px;
  min-height: 0;
  flex: 1;
}

.rf-sidebar {
  width: 340px;
  min-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--border-mid);
  background: var(--surface-2);
  border-radius: var(--radius-2xl);
  /* overflow-y: auto vem da primitiva .scroll-y aplicada no HTML.
     overflow-x: hidden evita barra horizontal por causa do border-radius. */
  overflow-x: hidden;
}

.rf-sidebar-head {
  display: grid;
  gap: 6px;
}

.rf-sidebar-kicker {
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--accent-hi);
}

.rf-sidebar-head h3 {
  margin: 0;
  color: var(--text);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: 0;
}

.rf-sidebar-head p {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.45;
}

.rf-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Stage de preview — fundo xadrez para evidenciar transparência */
.rf-preview-card {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  min-height: 0;
  padding: 16px;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-mid);
  background: var(--surface-2);
  overflow: hidden;
}

.rf-preview-head {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rf-preview-toggle {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-mid);
  background: rgba(255, 255, 255, 0.03);
}

.rf-preview-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0;
  cursor: pointer;
  transition: background-color var(--ease-hover), color var(--ease-hover), border-color var(--ease-hover);
}

.rf-preview-toggle-btn:hover {
  color: var(--text);
  background-color: rgba(255, 255, 255, 0.04);
}

.rf-preview-toggle-btn.is-active {
  color: var(--text);
  background-color: rgba(var(--accent-rgb), .14);
  border-color: rgba(var(--accent-rgb), .42);
}

.rf-preview-toggle-btn:disabled {
  opacity: .5;
  pointer-events: none;
}

.rf-preview-stage {
  position: relative;
  flex: 1;
  min-height: 0;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-lo);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f3f6fb;
  background-image:
    linear-gradient(45deg, rgba(20, 29, 43, 0.08) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(20, 29, 43, 0.08) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(20, 29, 43, 0.08) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(20, 29, 43, 0.08) 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
}

/* Variante: fundo branco (para preview com white background ligado) */
.rf-preview-stage.rf-preview-stage--white {
  background-color: #ffffff;
  background-image: none;
}

/* Variante: fundo escuro (mostrar imagem original sem xadrez) */
.rf-preview-stage.rf-preview-stage--solid {
  background-color: var(--surface-1);
  background-image:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.06), transparent 42%);
}

.rf-preview-stage img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

.rf-preview-placeholder {
  display: grid;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 28px;
  color: var(--muted);
}

.rf-preview-placeholder strong {
  color: var(--text);
  font-size: var(--text-lg);
  font-weight: 700;
}

.rf-preview-placeholder span {
  font-size: var(--text-md);
  line-height: 1.45;
  max-width: 320px;
}

.rf-preview-empty-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  color: var(--accent-hi);
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.22);
  margin-bottom: 4px;
}

/* Overlay de loading sobre o stage */
.rf-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  background: rgba(4, 8, 14, 0.74);
  backdrop-filter: blur(6px);
  color: var(--text);
  z-index: 4;
}

.rf-overlay strong {
  font-size: var(--text-lg);
  font-weight: 700;
}

.rf-overlay-progress {
  width: min(280px, 80%);
  height: 7px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.10);
  overflow: hidden;
}

.rf-overlay-progress-bar {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi));
  transition: width 0.35s ease;
}

/* Hold to compare — botão flutuante no canto */
.rf-compare-btn {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-mid);
  background: rgba(8, 6, 14, 0.78);
  color: var(--text);
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0;
  cursor: pointer;
  transition: background-color var(--ease-hover), border-color var(--ease-hover), color var(--ease-hover);
  backdrop-filter: blur(8px);
}

.rf-compare-btn:hover {
  background-color: rgba(20, 17, 32, 0.92);
  border-color: var(--border-hi);
}

.rf-compare-btn:active {
  filter: brightness(.92);
}

.rf-compare-btn:disabled {
  opacity: 0;
  pointer-events: none;
}

.rf-compare-btn svg {
  flex: 0 0 auto;
}

/* Upload zone (mesmo padrão visual de .mf-upload-zone) */
.rf-upload-zone {
  position: relative;
  display: grid;
  justify-items: center;
  gap: 10px;
  padding: 28px 22px;
  border-radius: var(--radius-2xl);
  border: 1.5px dashed rgba(var(--accent-rgb), 0.3);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.025));
  text-align: center;
  cursor: pointer;
  transition: background-color var(--ease-hover), border-color var(--ease-hover);
}

.rf-upload-zone:hover {
  background-color: rgba(var(--accent-rgb), 0.07);
  border-color: rgba(var(--accent-rgb), 0.6);
}

.rf-upload-zone:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.rf-upload-zone--drag {
  border-color: rgba(var(--accent-rgb), 0.85);
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.14), rgba(var(--gold-rgb), 0.06));
}

.rf-upload-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  color: var(--accent-hi);
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.22);
}

.rf-upload-zone strong {
  color: var(--text);
  font-size: var(--text-lg);
  font-weight: 700;
}

.rf-upload-zone span {
  color: var(--accent-hi);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-size: var(--text-xs);
  font-weight: 700;
}

.rf-upload-zone small {
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.45;
}

.rf-upload-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-weight: 700;
}

.rf-upload-divider::before,
.rf-upload-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-lo);
}

.rf-paste-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mid);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: var(--text-md);
  font-weight: 600;
  letter-spacing: 0;
  cursor: pointer;
  transition: background-color var(--ease-hover), border-color var(--ease-hover), color var(--ease-hover);
}

.rf-paste-btn:hover {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: var(--border-hi);
}

.rf-paste-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Cartão de status (info da imagem carregada) */
.rf-status-card {
  display: grid;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-lo);
}

.rf-status-card--ready {
  border-color: rgba(var(--accent-rgb), 0.30);
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.10), rgba(255, 255, 255, 0.03));
}

.rf-status-line {
  display: flex;
  gap: 10px;
  align-items: center;
}

.rf-status-line strong {
  color: var(--text);
  font-size: var(--text-md);
  font-weight: 700;
}

.rf-status-dot {
  width: 9px;
  height: 9px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(var(--accent-rgb), 0.12);
  flex: 0 0 auto;
}

.rf-status-card p {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.45;
}

.rf-status-card .rf-file-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: var(--text-sm);
}

.rf-status-card .rf-file-meta strong {
  color: var(--text);
  font-weight: 700;
}

/* Alert de erro */
.rf-alert {
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  background: rgba(212, 85, 85, 0.10);
  border: 1px solid rgba(212, 85, 85, 0.30);
  color: #ed8a8a;
  font-size: var(--text-sm);
  line-height: 1.45;
}

/* Botões internos da sidebar (família .rf-btn) */
.rf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 40px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-mid);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  font-size: var(--text-md);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1;
  cursor: pointer;
  white-space: normal;
  text-align: center;
  transition: background-color var(--ease-hover), border-color var(--ease-hover), color var(--ease-hover);
}

.rf-btn:hover {
  background-color: rgba(255, 255, 255, 0.07);
  border-color: var(--border-hi);
}

.rf-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.rf-btn:active {
  filter: brightness(.92);
}

.rf-btn:disabled,
.rf-btn[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

.rf-btn--primary {
  background-color: var(--accent);
  color: #0a141a;
  border-color: rgba(var(--accent-rgb), 0.6);
  font-weight: 700;
}

.rf-btn--primary:hover {
  background-color: var(--accent-hi);
  border-color: var(--accent-hi);
}

.rf-btn--gold {
  background-color: rgba(var(--gold-rgb), 0.14);
  color: var(--gold-hi);
  border-color: rgba(var(--gold-rgb), 0.42);
}

.rf-btn--gold:hover {
  background-color: rgba(var(--gold-rgb), 0.24);
  border-color: rgba(var(--gold-rgb), 0.6);
}

.rf-btn--ghost {
  background: transparent;
  border-color: var(--border-mid);
  color: var(--muted);
}

.rf-btn--ghost:hover {
  color: var(--text);
  background-color: rgba(255, 255, 255, 0.04);
}

/* Botão Fechar — hover em vermelho discreto, mesma cor de .lp-mini-btn-ghost
   em Nomes em Lote, sinalizando que vai sair do módulo. */
#rfCloseBtn:hover {
  background: rgba(212, 85, 85, .10);
  border-color: rgba(212, 85, 85, .32);
  color: #e07070;
}

.rf-btn--danger-soft {
  background: transparent;
  border-color: rgba(212, 85, 85, 0.30);
  color: #ed8a8a;
}

.rf-btn--danger-soft:hover {
  background-color: rgba(212, 85, 85, 0.10);
  border-color: rgba(212, 85, 85, 0.50);
  color: #ed8a8a;
}

/* Grupos do sidebar */
.rf-group {
  display: grid;
  gap: 10px;
}

.rf-group-label {
  text-transform: uppercase;
  letter-spacing: 0.10em;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--muted);
}

.rf-group-divider {
  height: 1px;
  background: var(--border-lo);
  border: 0;
  margin: 2px 0;
}

/* Toggle switch (Fundo branco) */
.rf-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-lo);
  background: rgba(255, 255, 255, 0.03);
}

.rf-toggle-row-text {
  display: grid;
  gap: 2px;
  flex: 1;
}

.rf-toggle-row-text strong {
  color: var(--text);
  font-size: var(--text-md);
  font-weight: 600;
}

.rf-toggle-row-text span {
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.35;
}

.rf-switch {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
}

.rf-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.rf-switch-slider {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--ease-hover), border-color var(--ease-hover);
}

.rf-switch-slider::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: var(--text);
  border-radius: var(--radius-pill);
  transition: left var(--ease-hover);
}

.rf-switch input:checked + .rf-switch-slider {
  background: rgba(var(--accent-rgb), 0.34);
  border-color: rgba(var(--accent-rgb), 0.6);
}

.rf-switch input:checked + .rf-switch-slider::before {
  left: 18px;
}

.rf-switch input:focus-visible + .rf-switch-slider {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Spinner */
.rf-spinner {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-pill);
  border: 3px solid rgba(255, 255, 255, 0.16);
  border-top-color: var(--accent-hi);
  animation: rf-spin 0.8s linear infinite;
  flex: 0 0 auto;
}

.rf-spinner--sm {
  width: 14px;
  height: 14px;
  border-width: 2px;
}

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

/* Toast / mensagem inline na sidebar */
.rf-hint {
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.45;
}

/* Credit chip — referência do modelo, mostra contador opcional */
.rf-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(var(--gold-rgb), .42);
  background: rgba(var(--gold-rgb), 0.14);
  color: var(--gold-hi);
  font-size: var(--text-sm);
  font-weight: 700;
}

/* Botão "Salvar / Baixar" gold (CTA secundário) */
.rf-actions-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.rf-actions-grid .rf-btn--full {
  grid-column: 1 / -1;
}

/* Responsivo */
@media (max-width: 1260px) {
  .rf-shell {
    flex-direction: column;
  }

  .rf-sidebar {
    width: auto;
    min-width: 0;
  }

  .rf-main {
    min-height: 480px;
  }
}

@media (max-width: 980px) {
  .rf-toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .rf-toolbar-title {
    margin-right: 0;
  }

  .rf-toolbar-actions {
    margin-left: 0;
    flex-wrap: wrap;
  }

  .rf-actions-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .rf-view {
    padding: 14px;
  }

  .rf-sidebar,
  .rf-preview-card,
  .rf-toolbar {
    padding: 14px;
    border-radius: var(--radius-xl);
  }
}