:root {
  --bg: #0f1419;
  --bg-elev: #1a1f26;
  --bg-pane: #ffffff;
  --border: #2a3038;
  --text: #e6e9ef;
  --text-dim: #8b95a3;
  --accent: #1f93ff;
  --accent-hover: #45a8ff;
  --danger: #ef4444;
  --pane-header-h: 36px;
  --bridge-pane-w: 360px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

/* Workspace inicia em modo "chatwoot-only": Bridge fica oculto
   até detectarmos sessão Chatwoot ativa. Após logout volta a esconder. */
.workspace {
  display: grid;
  grid-template-columns: 1fr;
  height: 100vh;
  width: 100vw;
  background: var(--border);
  transition: grid-template-columns 0.25s ease;
}

body[data-stage="ready"] .workspace {
  grid-template-columns: 1fr var(--bridge-pane-w);
  gap: 1px;
}

.pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-pane);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

/* Pane Bridge é INSERIDO/REMOVIDO no DOM dinamicamente pelo app.js
   (mountBridgePane/unmountBridgePane). Se não há sessão, pane não existe.
   Defesa em profundidade: mesmo se algum pane sobreviver no DOM por engano,
   este seletor garante invisibilidade fora do estado "ready". */
.pane-bridge {
  display: none !important;
}
body[data-stage="ready"] .pane-bridge {
  display: flex !important;
}

.pane-bridge {
  background: var(--bg-elev);
}

.pane-header {
  height: var(--pane-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  flex-shrink: 0;
}

.pane-id {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-mark {
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.pane-title {
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.3px;
}

.env-badge {
  font-size: 9px;
  padding: 2px 6px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

body[data-env="staging"] .env-badge {
  background: #f59e0b;
  color: #1a1408;
}
body[data-env="production"] .env-badge {
  background: #10b981;
  color: #052e22;
}

.pane-meta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.agent-name {
  font-size: 11px;
  color: var(--text-dim);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pane-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 14px;
  line-height: 1;
}
.pane-link:hover {
  color: var(--accent-hover);
}

.pane-frame {
  flex: 1;
  border: 0;
  width: 100%;
  background: var(--bg-pane);
}

/* Banner discreto no topo — só aparece quando sessão expira. */
.status-banner {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 12px;
  padding: 8px 16px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
  color: var(--text);
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.status-text {
  margin: 0;
  font-size: 12px;
}

@media (max-width: 1100px) {
  :root { --bridge-pane-w: 320px; }
}

@media (max-width: 800px) {
  body[data-stage="ready"] .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 320px;
  }
}