/* ── BUILDING LEVELS PAGE ── */
.page-header {
  padding: 20px 28px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-end;
  gap: 16px;
  flex-shrink: 0;
}
.page-title {
  font-family: 'Syne', sans-serif;
  font-size: 20px;
  font-weight: 700;
}
.page-subtitle { font-size: 11px; color: var(--text-muted); margin-top: 3px; }

.page-content { flex: 1; overflow: auto; padding: 24px 28px; }

/* Building stack visualisation */
.building-editor {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 20px;
  max-width: 1200px;
}

.levels-stack {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.levels-stack-header {
  display: grid;
  grid-template-columns: 36px 120px 100px 36px;
  gap: 0;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  padding: 0 12px;
}
.col-head {
  padding: 8px 6px;
  font-size: 10px;
  color: var(--text-muted);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.level-row {
  display: grid;
  grid-template-columns: 36px 120px 100px 36px;
  gap: 0;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: background 0.1s;
}
.level-row:hover { background: var(--surface2); }
.level-row:last-child { border-bottom: none; }
.level-row.is-ground { background: rgba(56,201,110,0.05); }
.level-row.is-ground:hover { background: rgba(56,201,110,0.08); }

.level-badge {
  font-size: 10px;
  color: var(--text-dim);
  text-align: center;
  font-style: italic;
}
.level-badge.ground { color: var(--tg); font-style: normal; font-weight: 500; }

.row-input {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  padding: 4px 6px;
  border-radius: 4px;
  width: 100%;
  outline: none;
  transition: border-color 0.1s;
}
.row-input:hover { border-color: var(--border); }
.row-input:focus { border-color: var(--accent2); background: var(--surface2); }
.row-input.name { font-weight: 500; font-size: 13px; }

.level-zones-btn {
  font-size: 10px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.level-zones-btn:hover { border-color: var(--accent2); color: var(--accent2); background: rgba(77,168,255,0.05); }
.level-zones-btn.has-zones { border-color: rgba(77,168,255,0.4); color: var(--accent2); background: rgba(77,168,255,0.07); }

.add-level-row {
  padding: 10px 12px;
  border-top: 1px dashed var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 11px;
  transition: all 0.15s;
}
.add-level-row:hover { color: var(--accent2); background: rgba(77,168,255,0.03); }

.del-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  padding: 3px 5px;
  border-radius: 3px;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.1s;
}
.del-btn:hover { color: var(--danger); background: rgba(240,80,80,0.1); }

/* Right panel */
.levels-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.panel-header {
  padding: 12px 16px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  display: flex; align-items: center; gap: 8px; justify-content: space-between;
}
.panel-body { padding: 14px 16px; }
.field-group { margin-bottom: 10px; }
.field-group:last-child { margin-bottom: 0; }
.field-label { font-size: 10px; color: var(--text-muted); margin-bottom: 4px; display: block; }
.field-input {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 5px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}
.field-input:focus { border-color: var(--accent2); }
.field-row { display: flex; gap: 8px; }
.field-row .field-group { flex: 1; }

.summary-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.summary-panel-header {
  background: var(--surface2);
  padding: 11px 16px;
  font-family: 'Syne', sans-serif;
  font-size: 12px;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.pass-badge {
  padding: 3px 10px; border-radius: 10px; font-size: 10px; font-weight: 500;
}
.pass-badge.pass { background:rgba(56,201,110,0.12); color:var(--tg); }
.pass-badge.fail { background:rgba(240,80,80,0.12); color:var(--np); }
.pass-badge.partial { background:rgba(212,146,26,0.12); color:var(--warn); }
.summary-body { padding: 14px 16px; }
.info-row { display:flex; justify-content:space-between; font-size:11px; padding:3px 0; border-bottom:1px solid rgba(42,52,71,0.4); }
.info-row:last-child { border-bottom:none; }
.info-key { color:var(--text-muted); }
.info-val { font-weight:500; }