/* Grundlayout: Topbar · Sidebar | Zeichenfläche | Inspector */

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr var(--inspector-w);
  grid-template-rows: var(--topbar-h) 1fr;
  grid-template-areas: "top top top" "side main insp";
  height: 100dvh;
}

.topbar {
  grid-area: top;
  display: flex; align-items: center; gap: 6px;
  padding: 0 10px;
  background: var(--c-panel);
  border-bottom: 1px solid var(--c-border);
  min-width: 0;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: .01em;
  padding-right: 8px; margin-right: 2px; border-right: 1px solid var(--c-border);
  white-space: nowrap;
}
.brand svg { color: var(--c-accent); }
.topbar .spacer { flex: 1; }

.sidebar {
  grid-area: side;
  background: var(--c-panel);
  border-right: 1px solid var(--c-border);
  overflow-y: auto;
  min-height: 0;
}
.inspector {
  grid-area: insp;
  background: var(--c-panel);
  border-left: 1px solid var(--c-border);
  overflow-y: auto;
  min-height: 0;
}
.main {
  grid-area: main;
  display: grid;
  grid-template-rows: auto 1fr var(--statusbar-h);
  min-width: 0; min-height: 0;
  position: relative;
}
.canvas { position: relative; min-height: 0; overflow: hidden; }
.canvas > .stage { position: absolute; inset: 0; }

.viewbar {
  display: flex; align-items: stretch; gap: 0;
  background: var(--c-panel);
  border-bottom: 1px solid var(--c-border);
  min-height: 36px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.statusbar {
  display: flex; align-items: center; gap: 14px;
  padding: 0 10px;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--c-text-muted);
  background: var(--c-panel);
  border-top: 1px solid var(--c-border);
  white-space: nowrap; overflow: hidden;
}
.statusbar .spacer { flex: 1; }

/* Overlays über der Zeichenfläche */
.canvas-hint {
  position: absolute; left: 50%; top: 32px; transform: translateX(-50%);
  background: var(--c-panel-2); border: 1px solid var(--c-border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 6px 12px; font-size: 12px; color: var(--c-text-muted);
  pointer-events: none; max-width: calc(100% - 80px); text-align: center; z-index: 5;
}
.canvas-tools {
  position: absolute; right: 12px; top: 30px; display: flex; flex-direction: column; gap: 4px; z-index: 5;
}

/* Mobile Panel-Schalter nur auf kleinen Screens */
.only-narrow { display: none !important; }

@media (max-width: 1100px) {
  :root { --sidebar-w: 200px; --inspector-w: 270px; }
}

@media (max-width: 860px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "top" "main";
  }
  .topbar { gap: 2px; padding: 0 4px; overflow: hidden; }
  .topbar .search { flex: 1 1 auto; min-width: 0; }
  .topbar .proj-name, .topbar .spacer { display: none; }
  .brand { border-right: 0; padding-right: 0; }
  .statusbar { gap: 10px; }
  .search-results { position: fixed; left: 8px; right: 8px; top: calc(var(--topbar-h) + 4px); min-width: 0; }
  .sidebar, .inspector {
    position: fixed; top: var(--topbar-h); bottom: 0; z-index: 40;
    width: min(320px, 88vw);
    box-shadow: var(--shadow);
    transition: transform .2s ease;
  }
  .sidebar { left: 0; transform: translateX(-105%); }
  .inspector { right: 0; transform: translateX(105%); }
  .app.show-side .sidebar { transform: none; }
  .app.show-insp .inspector { transform: none; }
  .only-narrow { display: inline-flex !important; }
  .hide-narrow { display: none !important; }
  .brand .brand-name { display: none; }
}

/* 3D-Vorschau */
.view3d { position: absolute; inset: 0; background: var(--c-canvas); }
.view3d canvas { display: block; }
.tip3d { position: absolute; pointer-events: none; padding: 3px 8px; border-radius: var(--radius-sm); background: var(--c-panel-2); border: 1px solid var(--c-border); box-shadow: var(--shadow); font-size: 12px; white-space: nowrap; z-index: 4; }
.viewbar-right { margin-left: auto; display: flex; align-items: center; gap: 6px; padding: 0 8px; }
.mode-3d .canvas-hint { top: 12px; }