/* ═══════════════════════════════════════════════════════════════════════════
   ChartCanvas — Modo Pro (canvas de staging/edição dinâmica)
   Aditivo: só estiliza elementos próprios (prefixo .canvas-*). Não altera nada
   do layout existente.
   ═══════════════════════════════════════════════════════════════════════════ */

/* Botão toggle "Modo Pro" no rodapé do chat */
.canvas-pro-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 9px;
  cursor: pointer;
  transition: all .15s ease;
}
.canvas-pro-toggle:hover { color: var(--accent); border-color: var(--accent); }
.canvas-pro-toggle.pro-on { color: #fff; background: var(--accent); border-color: var(--accent); }
.canvas-pro-badge {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: .5px;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(0,0,0,.18);
}

/* Overlay */
.canvas-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(2px);
}
.canvas-dialog {
  position: relative;
  width: min(1100px, 94vw);
  height: min(760px, 92vh);
  background: var(--surface, #161b22);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0,0,0,.45);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.canvas-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.canvas-head-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--text, #e6edf3);
}
.canvas-head-title i { color: var(--accent); width: 18px; }
.canvas-x {
  border: none;
  background: none;
  color: var(--muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 6px;
}
.canvas-x:hover { background: var(--bg); color: var(--text); }

.canvas-body {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 320px;
  min-height: 0;
}
.canvas-preview {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-right: 1px solid var(--border);
  padding: 14px 16px;
}
.canvas-preview-title {
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  min-height: 20px;
}
.canvas-preview-mount {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.canvas-preview-mount canvas { max-height: 100%; }

/* Conteúdo do preview (gráfico/KPI/tabela) ocupa toda a área do mount. */
.cv-content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

/* Zona inteligente de drop sobre o gráfico (arrastar coluna → eixo certo).
   Cobre toda a área do preview e só aparece enquanto se arrasta uma coluna
   (.cv-axis-on no mount). O destino é decidido pelo papel da coluna no JS. */
.cv-smart-drop {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 6;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(88, 166, 255, 0.12);
  border: 2px dashed var(--accent);
  border-radius: 10px;
  pointer-events: none;
  text-align: center;
  padding: 12px;
}
.canvas-preview-mount.cv-axis-on .cv-smart-drop { display: flex; pointer-events: auto; }
.cv-smart-drop.cv-over { background: rgba(88, 166, 255, 0.24); }
.cv-smart-drop.cv-drop-ok { border-color: #10b981; color: #10b981; background: rgba(16,185,129,.20); }

.canvas-ai-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.canvas-ai-row input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 0.84rem;
}

.canvas-controls {
  padding: 14px 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.canvas-field { display: flex; flex-direction: column; gap: 4px; }
.canvas-field > span { font-size: 0.72rem; color: var(--muted); font-weight: 600; }
.canvas-field input,
.canvas-field select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 7px 9px;
  font-size: 0.82rem;
}
.canvas-field input[type="color"] { height: 34px; padding: 2px; cursor: pointer; }

/* ── Paleta de colunas + drag-and-drop (itens 4 e 5) ───────────────────────── */
.cv-palette-wrap { margin-bottom: 4px; }
.cv-palette-label { font-size: 0.7rem; color: var(--muted); margin-bottom: 6px; }
.cv-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  max-height: 132px;
  overflow-y: auto;
  padding: 8px;
  background: var(--bg);
  border: 1px dashed var(--border);
  border-radius: 8px;
}
.cv-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  color: var(--text);
  background: var(--surface-solid, var(--surface));
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px 8px;
  cursor: grab;
  user-select: none;
  white-space: nowrap;
}
.cv-chip b { font-size: 0.66rem; opacity: .65; font-weight: 700; }
.cv-chip:hover { border-color: var(--accent); }
.cv-chip.cv-dragging { opacity: .45; }
/* cor da borda esquerda por papel da coluna */
.cv-chip.cv-role-numeric { border-left: 3px solid #58A6FF; }
.cv-chip.cv-role-categorical { border-left: 3px solid #10b981; }
.cv-chip.cv-role-datetime { border-left: 3px solid #f59e0b; }

.cv-dropzone { position: relative; border-radius: 6px; transition: box-shadow .12s ease, background .12s ease; }
.cv-dropzone.cv-over { box-shadow: 0 0 0 2px var(--accent) inset; background: rgba(88,166,255,.06); }
.cv-dropzone.cv-drop-ok { box-shadow: 0 0 0 2px #10b981 inset; }
.cv-dropzone.cv-drop-bad { box-shadow: 0 0 0 2px #ef4444 inset; }

.cv-suggest-row { margin: 2px 0; }
.cv-suggest-row .canvas-btn { width: 100%; justify-content: center; }

.canvas-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.canvas-foot-info { font-size: 0.74rem; color: var(--muted); }

.canvas-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 7px;
  padding: 8px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s ease;
}
.canvas-btn:hover { border-color: var(--accent); color: var(--accent); }
.canvas-btn:disabled { opacity: .55; cursor: default; }
.canvas-btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.canvas-btn-primary:hover { filter: brightness(1.08); color: #fff; }
.canvas-btn-ghost { background: none; }

.canvas-loading, .canvas-error {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 30px;
}
.canvas-error { color: #ef9a9a; }

.canvas-kpi { text-align: center; }
.canvas-kpi-value { font-size: 2.6rem; font-weight: 800; color: var(--accent); }
.canvas-kpi-label { font-size: 0.95rem; color: var(--text); margin-top: 6px; }
.canvas-kpi-meta { font-size: 0.72rem; color: var(--muted); margin-top: 4px; }

.canvas-table-wrap { width: 100%; height: 100%; overflow: auto; }
.canvas-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.canvas-table th, .canvas-table td {
  border: 1px solid var(--border);
  padding: 5px 8px;
  text-align: left;
  color: var(--text);
  white-space: nowrap;
}
.canvas-table th { background: var(--bg); position: sticky; top: 0; }

@media (max-width: 720px) {
  .canvas-body { grid-template-columns: 1fr; }
  .canvas-preview { border-right: none; border-bottom: 1px solid var(--border); }
}

/* ── Drawer de histórico de alterações ─────────────────────────────────────── */
#history-drawer {
  position: fixed;
  inset: 0;
  z-index: 9998;
  display: none;
}
#history-drawer .history-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.4);
}
#history-drawer .history-aside {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: min(380px, 92vw);
  background: var(--surface, #161b22);
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 40px rgba(0,0,0,.35);
  display: flex;
  flex-direction: column;
}
.history-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.history-actions { padding: 12px 16px 0; }
.history-list { flex: 1; overflow-y: auto; padding: 8px 16px 16px; }