.ab-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 20px;
}
@media (max-width: 900px) {
  .ab-layout { grid-template-columns: 1fr; }
  .ab-preview-col { order: -1; }
}
.ab-canvas-wrap {
  position: relative;
  width: 100%;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
}
.ab-canvas-wrap canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: inherit;
}
.ab-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.ab-actions .btn { flex: 1; min-width: 110px; justify-content: center; }
.ab-template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.ab-tpl-btn {
  padding: 10px 8px;
  border: 2px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
  transition: border-color var(--t), color var(--t), background var(--t);
  line-height: 1.3;
}
.ab-tpl-btn:hover { border-color: var(--border-strong); color: var(--text-primary); }
.ab-tpl-btn.active { border-color: var(--accent); background: var(--accent-dim); color: var(--accent); }
.ab-tpl-btn span { display: block; font-size: 1.4rem; margin-bottom: 4px; }
.ab-controls { display: flex; flex-direction: column; gap: 16px; }
.ab-size-btns { display: flex; gap: 8px; }
.ab-size-btns .btn { flex: 1; }