/* Barra de abas internas (estilo Chrome / FireSys) */
.tabs-bar {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  overflow-y: hidden;
  flex-shrink: 0;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.tabs-bar::-webkit-scrollbar { height: 6px; }
.tabs-bar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

.tab-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 220px;
  min-width: 120px;
  padding: 10px 12px 10px 14px;
  border: none;
  border-right: 1px solid var(--border);
  background: #f8fafc;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, color .15s;
  flex-shrink: 0;
}

.tab-item:hover { background: #f1f5f9; color: var(--ink); }

.tab-item.active {
  background: var(--bg);
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--primary);
}

.tab-item.pinned { min-width: 100px; }

.tab-item-label {
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  text-align: left;
}

.tab-item-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  padding: 0;
}

.tab-item-close:hover {
  background: rgba(15, 23, 42, .08);
  color: var(--ink);
}

.tab-item.pinned .tab-item-close { display: none; }

/* Área de trabalho das abas */
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-width: none !important;
  width: 100%;
  padding: 0 !important;
  overflow: hidden;
}

.tab-workspace {
  flex: 1;
  position: relative;
  min-height: 0;
  overflow: hidden;
  padding: 0;
}

.tab-pane.active {
  animation: tabFadeIn .15s ease;
}

.tab-pane.is-loading {
  opacity: .6;
  pointer-events: none;
}

@keyframes tabFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}


/* Layout de formulários em largura total */
.form-page {
  width: 100%;
}

.form-page .card {
  width: 100%;
  max-width: none;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px 20px;
}

@media (max-width: 1100px) {
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
}

.form-grid .field.full,
.form-grid .field.span-2,
.form-grid .field.span-3 {
  grid-column: 1 / -1;
}

@media (min-width: 701px) and (max-width: 1100px) {
  .form-grid .field.span-2 { grid-column: span 2; }
}

@media (min-width: 1101px) {
  .form-grid .field.span-2 { grid-column: span 2; }
  .form-grid .field.span-3 { grid-column: span 3; }
}

/* Páginas de listagem e detalhe */
.page-full {
  width: 100%;
  max-width: none;
}

.confirm-page {
  max-width: 560px;
}

.confirm-page .card {
  width: 100%;
}