/* 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; }
}

/* Nur auf schmalen Bildschirmen sichtbar (auf dem Desktop ausgeblendet) */
.mobilebar, .scrim, .sheet-bar { display: none; }

@media (max-width: 860px) {
  .app {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "top" "main";
    /* iPhone: Notch und Home-Leiste freihalten */
    padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  }
  .topbar { gap: 2px; padding: 0 4px; overflow: hidden; }
  .topbar .search { flex: 1 1 auto; min-width: 0; }
  .topbar .proj-name, .topbar .spacer, .brand { display: none; }
  .statusbar { gap: 10px; }
  .search-results { position: fixed; left: 8px; right: 8px; top: calc(var(--topbar-h) + env(safe-area-inset-top) + 4px); min-width: 0; }

  /* Werkzeuge: Schublade von links */
  .sidebar {
    position: fixed; left: 0; top: calc(var(--topbar-h) + env(safe-area-inset-top)); bottom: 0; z-index: 40;
    width: min(320px, 86vw); box-shadow: var(--shadow);
    transform: translateX(-105%); transition: transform .2s ease;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .app.show-side .sidebar { transform: none; }

  /* Eigenschaften: Blatt von unten */
  .inspector {
    position: fixed; left: 0; right: 0; bottom: 0; top: auto; z-index: 40;
    width: 100%; max-height: 74dvh; border-left: 0; border-top: 1px solid var(--c-border);
    border-radius: 14px 14px 0 0; box-shadow: 0 -8px 30px rgb(0 0 0 / .25);
    transform: translateY(105%); transition: transform .22s ease;
    padding-bottom: env(safe-area-inset-bottom);
    overscroll-behavior: contain;
  }
  .app.show-insp .inspector { transform: none; }
  .sheet-bar {
    display: flex; align-items: center; justify-content: center; position: sticky; top: 0; z-index: 2;
    padding: 6px 8px 2px; background: var(--c-panel);
  }
  .sheet-grip { width: 40px; height: 5px; border-radius: 3px; background: var(--c-border-strong); }
  .sheet-bar .btn { position: absolute; right: 8px; top: 2px; }

  .scrim { display: block; position: fixed; inset: 0; z-index: 39; background: rgb(0 0 0 / .35); opacity: 0; pointer-events: none; transition: opacity .2s; }
  .app.show-side .scrim, .app.show-insp .scrim { opacity: 1; pointer-events: auto; }

  /* Aktionsleiste unten über der Zeichenfläche */
  .mobilebar {
    display: flex; flex-direction: column; gap: 6px; position: absolute; left: 8px; right: 8px; bottom: 8px; z-index: 6;
    padding: 8px; border: 1px solid var(--c-border); border-radius: 12px; background: var(--c-panel-2); box-shadow: var(--shadow);
  }
  .mobilebar[hidden] { display: none; }
  .mobilebar-title { display: flex; gap: 8px; align-items: baseline; min-width: 0; padding: 0 2px; }
  .mobilebar-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .mobilebar-title .mono { font-size: 11px; color: var(--c-accent-strong); }
  .mobilebar-actions { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; }
  .mobilebar-actions .btn { flex: 0 0 auto; }
  .mobilebar-actions .btn.ghost { margin-left: auto; }
  .mobilebar-actions .btn span:empty { display: none; }

  /* Hinweise unten statt oben, nicht über der Zeichnung */
  .canvas-hint { top: auto; bottom: 10px; font-size: 12px; max-width: calc(100% - 24px); }
  .canvas-tools { top: 28px; right: 8px; }
  .viewbar-right { position: sticky; right: 0; background: var(--c-panel); }

  .only-narrow { display: inline-flex !important; }
  .hide-narrow { display: none !important; }
}

/* Touch-Geräte: größere Ziele, keine Auto-Zoom-Falle bei Eingabefeldern (iOS zoomt bei < 16px) */
@media (pointer: coarse) {
  .btn { height: 38px; }
  .btn.icon { width: 38px; }
  .btn.small { height: 32px; }
  .btn.small.icon { width: 32px; }
  .tool { min-height: 42px; }
  .seg button { height: 34px; padding: 0 12px; }
  .tab { padding: 0 14px; }
  .field input, .field select, .field textarea, .search input, .levels-table input, .contents-row input, .walls-table input, .length-input input { font-size: 16px; height: 38px; }
  .menu button { padding: 10px 12px; }
}

/* 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; }
@media (max-width: 860px) {
  .canvas:has(.mobilebar:not([hidden])) .canvas-hint { bottom: 112px; }
}
/* Touch: kein Doppeltipp-Zoom der ganzen Seite (Zeichenfläche hat eigene Gesten) */
@media (pointer: coarse) { html, body { touch-action: manipulation; } }