.app-shell {
  display: grid;
  grid-template-rows: var(--toolbar-height) var(--status-bar-height) 1fr;
  min-height: 100vh;
  height: 100vh;
  overflow: hidden;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  background: var(--color-brand);
  color: var(--color-text-on-brand);
  border-bottom: 1px solid rgba(247, 243, 236, 0.12);
  overflow-x: auto;
  overflow-y: hidden;
  height: var(--toolbar-height);
  flex-shrink: 0;
}

.toolbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-right: var(--space-3);
  flex-shrink: 0;
}

.toolbar__logo {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--radius-sm);
}

.toolbar__title {
  font-weight: var(--weight-semibold);
  letter-spacing: -0.01em;
}

.toolbar__subtitle {
  font-size: var(--text-xs);
  color: var(--color-text-on-brand-muted);
}

.toolbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: nowrap;
  margin-left: auto;
  min-width: 0;
}

.toolbar__type {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: 0.15rem;
  flex-shrink: 0;
}

.toolbar__type-label {
  font-size: var(--text-xs);
  color: var(--color-text-on-brand-muted);
  white-space: nowrap;
}

.select--toolbar {
  width: auto;
  min-width: 9.5rem;
  max-width: 12rem;
  padding: 0.35rem 0.5rem;
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  font-weight: var(--weight-medium);
  line-height: 1.3;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid rgba(247, 243, 236, 0.55);
  border-radius: var(--radius-sm);
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235c635f' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.55rem center;
  padding-right: 1.6rem;
}

.select--toolbar:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.select--toolbar option {
  color: var(--color-text);
  background: #fff;
}

.status-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: var(--status-bar-height);
  padding: 0 var(--space-4);
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.status-chip {
  flex: 1;
  min-width: 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.status-bar .btn--ghost {
  flex-shrink: 0;
  color: var(--color-text-muted);
}

.preview-pdf {
  width: 100%;
  height: 100%;
  min-height: 18rem;
  border: 0;
  background: #fff;
}

.workspace {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1.2fr) minmax(16rem, 0.9fr);
  grid-template-rows: minmax(0, 1fr) minmax(12rem, 32vh);
  min-height: 0;
  height: auto;
  overflow: hidden;
}

.panel {
  background: var(--color-bg-elevated);
  border-right: 1px solid var(--color-border);
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.panel--preview { background: var(--color-bg-muted); }
.panel--fields { border-right: 0; }
.panel--bottom {
  grid-column: 1 / -1;
  border-right: 0;
  border-top: 1px solid var(--color-border);
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.panel__title {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
}

.panel__body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: var(--space-3) var(--space-4);
}

.preview-stage {
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: var(--space-4);
}

.preview-stage img,
.preview-stage canvas {
  max-width: 100%;
  max-height: calc(100vh - var(--toolbar-height) - var(--status-bar-height) - 32vh - 5rem);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  background: #fff;
}

.preview-empty {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 22rem;
}

.drop-target.is-dragover {
  outline: 2px dashed var(--color-brand-soft);
  outline-offset: -8px;
  background: rgba(26, 92, 94, 0.06);
}

@media (max-width: 960px) {
  .app-shell {
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }
  .workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    height: auto;
    overflow: visible;
  }
  .panel { border-right: 0; border-bottom: 1px solid var(--color-border); }
  .panel--bottom { min-height: 16rem; }
}