/* Updated: 2026-03-17  00:39 UTC */
/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: sans-serif;
  background: #f0f0f0;
  color: #333;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  background: #fff linear-gradient(0deg, rgb(245,246,247) 0%, rgb(255,255,255) 100%);
  border-bottom: 1px solid #bcd;
  flex-shrink: 0;
  flex-wrap: nowrap;
  min-width: 0;
}
header h1 {
  font-size: 0.95rem;
  font-weight: 600;
  color: #2a7a4a;
  flex: 0 1 auto;   /* shrinks when space is tight */
  min-width: 0;     /* allows shrinking past its text content width */
  overflow: hidden;
  white-space: nowrap;
}
#project-title {
  font-size: 0.8rem;
  color: #888;
  flex: 1 0 0;      /* grows into available space, does NOT shrink */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Zoom controls ── */
.zoom-controls {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;      /* zoom controls are always fully visible */
}
  .zoom-controls button {
    font-size: 0.85rem;
    background: #f0f0f0 linear-gradient(0deg, rgb(230,231,232) 0%, rgb(255,255,255) 100%); color: #222;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 0;
    width: 30px;
    height: 24px;
    cursor: pointer;
    transition: background 0.15s;
    text-align: center;
  }
    .zoom-controls button.zoom {
      border: 1px solid #abc;
    }
    .zoom-controls button:hover { background: #e0e0e0; }
#zoom-btn {
  /* font-size: 0.75rem; */
  width: auto;
  min-width: 100px;
}
.zoom-controls button[data-reset] { color: #2a7a4a; }

/* ── Main layout ── */
.workspace {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Tree panel ── */
.tree-panel {
  width: 250px;
  min-width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.tree-panel-header {
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #999;
  padding: 8px 12px 6px;
  border-bottom: 1px solid #ddd;
  background: #fff;
  flex-shrink: 0;
}
cxtf-tree {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 20px;
}

/* ── Info panel ── */
.info-panel {
  font-size: 0.68rem;
  color: #999;
  padding: 8px 12px;
  border-top: 1px solid #bcd;
  background: #fafafa;
  flex-shrink: 0;
  line-height: 1.8;
}
.info-panel span { display: block; }
.info-panel .info-label {
  color: #bbb;
  font-size: 0.60rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.info-panel .info-value { color: #777; }
.info-panel .info-toggle {
  display: inline-block;
  margin-top: 4px;
  color: #2a7a4a;
  font-size: 0.62rem;
  cursor: pointer;
  user-select: none;
}
.info-panel .info-toggle:hover { text-decoration: underline; }

/* ── Splitter ── */
.splitter {
  width: 5px;
  flex-shrink: 0;
  background: #ddd;
  cursor: col-resize;
  transition: background 0.15s;
}
.splitter:hover,
.splitter.dragging { background: #2a7a4a; }

/* ── Canvas panel ── */
.canvas-panel {
  flex: 1;
  min-width: 400px;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  position: relative;
}
cxtf-view {
  flex: 1;
}

/* ── Status bar ── */
footer {
  font-size: 0.8rem;
  color: #888;
  padding: 4px 16px;
  background: #fff;
  border-top: 1px solid #bcd;
  flex-shrink: 0;
  display: flex;
  gap: 24px;
}
#status-focus { color: #2255aa; }
#status-hint  { margin-left: auto; }

#headerIcon { width:20px; height:20px; }

span.spacer { display:inline-block; width:.3rem; }

/* ── Tree panel toggle (class-based, works with media queries) ── */
.tree-hidden .tree-panel,
.tree-hidden .splitter { display: none; }

/* ── Responsive layout ── */

/* Tighten header padding on small screens */
@media (max-width: 750px) {
  header { gap: 8px; padding: 8px 10px; }
}

/* Very narrow (small portrait phone): hide project-title too. */
@media (max-width: 400px) {
  #project-title { display: none; }
  header { gap: 6px; padding: 6px 8px; }
  .zoom-controls { gap: 4px; }
  .zoom-controls button { width: 26px; height: 22px; font-size: 0.78rem; }
  #zoom-btn { min-width: 54px; }
}

/* Auto-hide tree on narrow screens (JS sets .tree-hidden on load;
   this rule ensures it is hidden even before JS runs). */
@media (max-width: 700px) {
  .workspace:not(.tree-hidden) .tree-panel,
  .workspace:not(.tree-hidden) .splitter { display: none; }

  footer {
    font-size: 0.72rem;
    padding: 3px 10px;
    gap: 12px;
  }
  #status-hint { display: none; }
}

@media (max-height: 500px) {
  /* Landscape phone: squeeze vertical chrome */
  header { padding: 4px 10px; gap: 6px; }
  footer  { padding: 2px 10px; }
  #project-title { display: none; }
}