/* Editor lateral (split screen) em exercises.html */

#app-layout {
  display: grid;
  grid-template-columns: 1fr;
  flex: 1;
  min-height: 0;
}

#app-layout.editor-open {
  grid-template-columns: 45% 55%;
}

#exercise-panel {
  overflow-y: auto;
  min-height: 0;
}

.iss-editor-panel-content {
  display: none;
  padding: 1rem 1.25rem;
  min-height: 0;
  overflow-y: auto;
}

#exercise-panel.has-editor-content #exercise-list-wrap {
  display: none;
}

#exercise-panel.has-editor-content .iss-editor-panel-content {
  display: block;
}

#editor-panel {
  border-left: 1px solid var(--color-border);
  display: none;
  overflow-y: auto;
  min-height: 0;
  background: var(--color-background);
}

#app-layout.editor-open #editor-panel {
  display: block;
}

/* Conteúdo do exercício no painel esquerdo (quando editor aberto) */
.iss-editor-panel-content .iss-prose {
  max-width: none;
}

/* Cabeçalho e botão Fechar no painel direito */
.editor-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.editor-panel__body {
  padding: 1rem;
}

.iss-close-editor-btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
  color: var(--color-accent);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.iss-close-editor-btn:hover {
  color: var(--color-accent-hover, var(--color-accent));
  border-color: var(--color-muted);
}

/* Responsivo: em telas pequenas empilhar ou manter uma coluna */
@media (max-width: 768px) {
  #app-layout.editor-open {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  #editor-panel {
    border-left: none;
    border-top: 1px solid var(--color-border);
  }
}