/* Application shell: menubar, three-column workspace, toolbar, statusbar. */

.app {
  display: grid;
  grid-template-rows: var(--menubar-height) 1fr var(--toolbar-height) var(--statusbar-height);
  height: 100vh;
}

/* ------------------------------------------------------------- menubar --- */

.menubar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-3);
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  padding: 4px 6px;
  border-radius: var(--radius-sm);
}
.brand:hover { background: var(--surface-2); }

.menus { display: flex; gap: 2px; }

.menubar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.project-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 32ch;
}

/* ----------------------------------------------------------- workspace --- */

.workspace {
  display: grid;
  grid-template-columns: var(--panel-width) minmax(0, 1fr) var(--panel-width);
  min-height: 0;
  background: var(--surface-0);
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--surface-1);
  overflow-y: auto;
  overflow-x: hidden;
}
.panel-left { border-right: 1px solid var(--border); }
.panel-right { border-left: 1px solid var(--border); }

.panel-header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-3) var(--space-2);
  background: var(--surface-1);
  border-bottom: 1px solid var(--border);
}

.panel-body { padding: var(--space-3); display: grid; gap: var(--space-3); }

.canvas-area {
  position: relative;
  min-width: 0;
  min-height: 0;
  background: var(--canvas-bg);
  overflow: hidden;
}

#map-canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
  touch-action: none;
}
#map-canvas.panning { cursor: grabbing; }
#map-canvas.pannable { cursor: grab; }


.zoom-controls {
  position: absolute;
  right: var(--space-3);
  bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.zoom-readout {
  min-width: 62px;
  padding: 4px 6px;
  background: none;
  border: 0;
  border-radius: var(--radius-sm);
  font-variant-numeric: tabular-nums;
  cursor: pointer;
}
.zoom-readout:hover { background: var(--surface-hover); }

/* ------------------------------------------------------------- toolbar --- */

.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0 var(--space-3);
  background: var(--surface-1);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.toolbar-separator {
  width: 1px;
  height: 22px;
  margin: 0 var(--space-2);
  background: var(--border);
  flex: none;
}

/* ----------------------------------------------------------- statusbar --- */

.statusbar {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-3);
  background: var(--surface-1);
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  overflow-x: auto;
}
.status-right { margin-left: auto; }

/* ------------------------------------------------------------- welcome --- */

.welcome {
  position: fixed;
  inset: 0;
  z-index: 50;
  overflow-y: auto;
  background: var(--surface-0);
}

.welcome-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-4) 64px;
  display: grid;
  gap: var(--space-5);
}

.welcome-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.welcome-actions { margin-left: auto; display: flex; gap: var(--space-2); flex-wrap: wrap; }

.welcome-section { display: grid; gap: var(--space-3); }
.welcome-section-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: var(--space-3);
}

.loading {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: var(--surface-0);
  color: var(--text-muted);
  z-index: 100;
}

/* Narrower desktops: the side panels shrink before the canvas does. */
@media (max-width: 1280px) {
  :root { --panel-width: 224px; }
}
@media (max-width: 1040px) {
  .workspace { grid-template-columns: 200px minmax(0, 1fr) 220px; }
  .statusbar { font-size: 12px; gap: var(--space-3); }
}