/* Concept Mapper — visual styles */
/* University of Chicago Brand Colors */
:root {
  /* Dark Theme with UChicago Colors */
  --font-sans: "UChicagoSansSerif-Regular", "Segoe UI", Arial, sans-serif;
  --font-sans-strong: "UChicagoSansSerif-SemiBold", "Segoe UI", Arial, sans-serif;
  --bg: #0a0c12;
  --bg2: #11141d;
  --bg3: #181c28;
  --bg4: #20253a;
  --border: rgba(255,255,255,0.1);
  --border-2: rgba(255,255,255,0.18);
  --text: #e8eaf2;
  --text-muted: #7a8293;
  --text-dim: #9ca3af;
  --uc-lake: #3EB1C8;
  --uc-ivy: #A9C47F;
  --uc-goldenrod: #EAAA00;
  --uc-brick: #B46A55;
  --shadow: 0 8px 32px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

a {
  color: var(--uc-lake);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover {
  color: #6cc5d7;
  text-decoration-style: solid;
}

/* ─── LAYOUT ─── */
.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  grid-template-rows: 60px 1fr;
  height: 100vh;
  transition: grid-template-columns 0.2s ease;
}

.app-shell.sidebar-collapsed {
  grid-template-columns: 0 1fr;
}

/* ─── TOPBAR ─── */
.topbar {
  grid-column: 1 / -1;
  background: rgba(17, 20, 29, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(128, 0, 0, 0.12);
  display: flex;
  align-items: center;
  height: 60px;
  padding: 0 20px;
  gap: 12px;
  z-index: 50;
  position: relative;
}

.topbar::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1.5px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(128, 0, 0, 0.4) 30%,
    rgba(0, 115, 150, 0.3) 70%,
    transparent
  );
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
}

.topbar-logo-mark-img {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.topbar-logo-text {
  font-family: var(--font-sans-strong);
  font-size: 13px;
  font-weight: normal;
  letter-spacing: -0.2px;
  color: var(--text);
}

.topbar-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}

.topbar-context {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  max-width: min(38vw, 420px);
  padding: 5px 10px;
  border: 1px solid rgba(128, 0, 0, 0.2);
  border-radius: 8px;
  background: rgba(128, 0, 0, 0.06);
}

.topbar-context-subject {
  font-size: 12px;
  color: var(--uc-brick);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-context-sep {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.topbar-context-path {
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-spacer { flex: 1; }

.topbar-icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.topbar-icon-btn svg {
  width: 16px;
  height: 16px;
}

.topbar-icon-btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border-color: rgba(255,255,255,0.1);
}

.topbar-role-switcher {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 9px;
  padding: 3px;
  gap: 2px;
}

.topbar-role-btn {
  padding: 5px 13px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.topbar-role-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

.topbar-role-btn.active {
  background: rgba(128,0,0,0.22);
  border-color: rgba(128,0,0,0.32);
  color: #B46A55;
}

.topbar-role-btn.active.student {
  background: rgba(0,115,150,0.16);
  border-color: rgba(0,115,150,0.26);
  color: #3EB1C8;
}

.topbar-role-btn.active.admin {
  background: rgba(234,170,0,0.16);
  border-color: rgba(234,170,0,0.28);
  color: #F3D03E;
}

.topbar-progress-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.topbar-progress {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.topbar-progress-value {
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  min-width: 2.6ch;
  text-align: right;
}

.topbar-progress-bar {
  width: 56px;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
}

.topbar-progress-fill {
  height: 100%;
  background: var(--uc-ivy);
  border-radius: 2px;
  transition: width 0.5s;
}

/* ─── SIDEBAR ─── */
.sidebar {
  background: rgba(17,20,29,0.96);
  backdrop-filter: blur(12px);
  border-right: 1px solid rgba(128,0,0,0.12);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: opacity 0.2s ease, border-color 0.2s ease;
  min-width: 0;
}

.app-shell.sidebar-collapsed .sidebar {
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
  border-right-color: transparent;
}

.sidebar-header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid rgba(128,0,0,0.1);
  flex-shrink: 0;
}

.sidebar-header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.sidebar-section-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--uc-brick);
  padding: 0 16px 0;
}

.sidebar-folder-controls {
  display: flex;
  gap: 5px;
}

.sidebar-folder-control-btn {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--text-dim);
  border-radius: 6px;
  font-size: 10px;
  font-family: inherit;
  padding: 3px 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.sidebar-folder-control-btn:hover {
  background: rgba(255,255,255,0.07);
  color: var(--text);
}

.sidebar-progress-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(0,115,150,0.07);
  border: 1px solid rgba(0,115,150,0.15);
}

.sidebar-progress-chip-label {
  font-size: 11px;
  font-weight: 500;
  color: rgba(62,177,200,0.75);
  white-space: nowrap;
}

.sidebar-progress-chip-bar {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.08);
  border-radius: 2px;
  overflow: hidden;
}

.sidebar-progress-chip-fill {
  height: 100%;
  background: var(--uc-ivy);
  border-radius: 2px;
  transition: width 0.5s ease;
}

.sidebar-progress-chip-pct {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 2.6ch;
  text-align: right;
}

.sidebar-search {
  width: 100%;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-family: inherit;
  font-size: 12px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s ease;
}

.sidebar-search::placeholder {
  color: var(--text-muted);
}

.sidebar-search:focus {
  border-color: rgba(128,0,0,0.42);
}

.sidebar-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0 100px;
}

.sidebar-subject-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  margin: 2px 8px;
  border-radius: 9px;
  cursor: pointer;
  transition: all 0.15s;
}

.sidebar-subject-item:hover {
  background: rgba(255,255,255,0.04);
}

.sidebar-subject-item.active {
  background: rgba(128,0,0,0.1);
  box-shadow: inset 0 0 0 1px rgba(128,0,0,0.18);
}

.sidebar-subject-item-main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.sidebar-subject-icon {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--uc-brick);
  background: rgba(128,0,0,0.12);
  flex-shrink: 0;
}

.sidebar-subject-title {
  font-family: var(--font-sans-strong);
  font-size: 12.5px;
  font-weight: normal;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-subject-count {
  font-size: 11px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 10px 8px;
  border-top: 1px solid rgba(255,255,255,0.08);
  flex-shrink: 0;
}

.sidebar-footer-btn {
  width: 100%;
  padding: 8px 10px;
  border-radius: 9px;
  border: 1.5px dashed rgba(128,0,0,0.24);
  background: transparent;
  color: var(--uc-brick);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.sidebar-footer-btn:hover {
  border-color: var(--uc-lake);
  color: #B46A55;
  background: rgba(128,0,0,0.08);
}

.sidebar-folder-title {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: transparent;
  border: none;
  text-align: left;
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--uc-brick);
  padding: 10px 16px 5px;
  font-family: inherit;
}

.sidebar-folder-title:hover {
  color: #ECA154;
}

.sidebar-folder-caret {
  font-size: 10px;
  opacity: 0.5;
  transition: transform 0.15s ease;
}

.sidebar-folder-caret.collapsed {
  transform: rotate(-90deg);
}

.sidebar-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  margin: 1px 8px;
  cursor: pointer;
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}

.sidebar-item:hover { background: rgba(255,255,255,0.04); }
.sidebar-item.active {
  background: rgba(128,0,0,0.08);
  border-left-color: var(--item-color, var(--uc-lake));
  box-shadow: inset 0 0 0 1px rgba(128,0,0,0.15);
}

.sidebar-item-title {
  font-family: var(--font-sans-strong);
  font-size: 13px;
  font-weight: normal;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 7px;
}

.sidebar-item-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--item-color);
  flex-shrink: 0;
}

.sidebar-item-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.45;
  padding-left: 14px;
}

.sidebar-item-progress {
  margin: 5px 0 0 14px;
  height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 2px;
  overflow: hidden;
}

.sidebar-item-progress-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.5s ease;
}

.sidebar-item-stats {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 3px;
  padding-left: 14px;
}

.sidebar-item-stats-right {
  display: flex;
  align-items: center;
  gap: 4px;
}

.sidebar-item-reset {
  width: 16px;
  height: 16px;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.15s, color 0.15s;
  flex-shrink: 0;
}

.sidebar-item:hover .sidebar-item-reset,
.sidebar-item.active .sidebar-item-reset {
  opacity: 1;
}

.sidebar-item-reset:hover {
  color: var(--text);
}

.sidebar-item-reset-icon {
  width: 11px;
  height: 11px;
  background-color: currentColor;
  -webkit-mask: url('assets/icons/reset-progress.svg') center / contain no-repeat;
  mask: url('assets/icons/reset-progress.svg') center / contain no-repeat;
}

.sidebar-divider {
  height: 1px;
  background: rgba(255,255,255,0.07);
  margin: 12px 8px;
}

/* ─── MAP AREA ─── */
.map-area {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 25%, rgba(62,177,200,0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 75%, rgba(169,196,127,0.06) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(154,175,136,0.04) 0%, transparent 50%),
    var(--bg);
  display: flex;
  flex-direction: column;
}

.student-view-wrapper {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}

.map-canvas-area {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.map-area::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.app-toast {
  position: absolute;
  top: 18px;
  right: 22px;
  z-index: 220;
  max-width: min(440px, 78vw);
  padding: 10px 13px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 600;
  border: 1px solid var(--border-2);
  background: rgba(17, 20, 29, 0.96);
  color: var(--text);
  box-shadow: 0 10px 24px rgba(0,0,0,0.28);
  animation: toastEnter 0.2s ease;
}

.app-toast.success {
  border-color: rgba(169,196,127,0.55);
  color: #A9C47F;
}

.app-toast.error {
  border-color: rgba(180,106,85,0.55);
  color: #B46A55;
}

.app-toast.info {
  border-color: rgba(62,177,200,0.55);
  color: #3EB1C8;
}

@keyframes toastEnter {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.map-header {
  position: absolute;
  top: 20px; left: 28px; right: 28px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  pointer-events: none;
}
.map-title-block { pointer-events: auto; }
.map-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.4px;
}
.map-desc { font-size: 12.5px; color: var(--text-muted); margin-top: 2px; }

.map-controls {
  display: flex; gap: 6px;
  pointer-events: auto;
}

.edge-label-slider {
  min-height: 34px;
  padding: 0 10px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 8px;
}

.edge-label-slider-text,
.edge-label-slider-value {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.edge-label-slider-value {
  min-width: 28px;
  text-align: right;
  color: var(--text);
}

.edge-label-slider input[type="range"] {
  width: 92px;
  accent-color: var(--uc-ivy);
  cursor: pointer;
}

.icon-btn {
  width: 34px; height: 34px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.15s;
}
.icon-btn svg {
  width: 16px;
  height: 16px;
}

.icon-btn-spread-nodes-icon,
.icon-btn-compact-nodes-icon {
  width: 16px;
  height: 16px;
  background-color: currentColor;
}

.icon-btn-spread-nodes-icon {
  -webkit-mask: url('assets/icons/spread-nodes.svg') center / contain no-repeat;
  mask: url('assets/icons/spread-nodes.svg') center / contain no-repeat;
}

.icon-btn-compact-nodes-icon {
  -webkit-mask: url('assets/icons/compact-nodes.svg') center / contain no-repeat;
  mask: url('assets/icons/compact-nodes.svg') center / contain no-repeat;
}

.icon-btn:hover { color: var(--text); border-color: var(--border-2); background: var(--bg3); }

.icon-btn-auto-arrange {
  color: rgba(62,177,200,0.86);
  border-color: rgba(62,177,200,0.32);
  background: rgba(62,177,200,0.08);
}

.icon-btn-auto-arrange-icon {
  width: 16px;
  height: 16px;
  background-color: currentColor;
  -webkit-mask: url('assets/icons/reset-layout.svg') center / contain no-repeat;
  mask: url('assets/icons/reset-layout.svg') center / contain no-repeat;
}

.icon-btn-auto-arrange:hover {
  color: #3EB1C8;
  border-color: rgba(62,177,200,0.5);
  background: rgba(62,177,200,0.18);
}

/* ─── CANVAS (zoomable, pannable) ─── */
.map-viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: grab;
  touch-action: none;
}
.map-viewport.panning { cursor: grabbing; }
.map-viewport.placing-node { cursor: crosshair; }

.map-canvas {
  position: absolute;
  top: 0; left: 0;
  transform-origin: 0 0;
  will-change: transform;
}

/* ─── NODES ─── */
.node {
  position: absolute;
  z-index: 5;
  user-select: none;
  transition: filter 0.3s, opacity 0.3s;
}

.node-card {
  padding: 12px 18px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  white-space: pre-line;
  line-height: 1.5;
  border: 2px solid transparent;
  min-width: 140px;
  max-width: 220px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.05);
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.4s, filter 0.4s;
  cursor: grab;
  position: relative;
  backdrop-filter: blur(8px);
}
.node-card:hover { transform: translateY(-2px); box-shadow: 0 6px 22px rgba(0,0,0,0.4); }
.node-card.dragging { cursor: grabbing; transform: scale(1.04); z-index: 100; box-shadow: 0 12px 40px rgba(0,0,0,0.5); }

.node-card.locked {
  opacity: 0.55;
  background: var(--bg3) !important;
  border-color: var(--border) !important;
  color: var(--text-muted) !important;
  cursor: default;
}

.node-card.locked .node-label-text {
  filter: blur(6px);
  letter-spacing: 2px;
  user-select: none;
}

.node-card.locked::after {
  content: '🔒';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 20px;
  opacity: 0.85;
  filter: none;
}

.node-card.unlocked {
  animation: nodeReveal 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.node-card.start {
  box-shadow: 0 0 0 3px rgba(255,255,255,0.06), 0 4px 20px rgba(0,0,0,0.4);
}

.node-card.start::before {
  content: 'START';
  position: absolute;
  top: -8px; right: 8px;
  font-size: 8.5px;
  font-weight: 700;
  letter-spacing: 1px;
  background: var(--uc-lake);
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
}

@keyframes nodeReveal {
  from { opacity: 0; transform: scale(0.5) rotate(-3deg); filter: blur(12px); }
  to { opacity: 1; transform: scale(1) rotate(0); filter: blur(0); }
}

/* admin builder selection */
.node-card.selected {
  outline: 2px dashed var(--uc-goldenrod);
  outline-offset: 4px;
}

.node-card.connect-source {
  outline: 2px solid var(--uc-goldenrod);
  outline-offset: 4px;
}

.node-card.connect-target-hover {
  outline: 2px solid var(--uc-ivy);
  outline-offset: 4px;
}

.node-handle {
  position: absolute;
  top: -8px; right: -8px;
  width: 18px; height: 18px;
  background: var(--uc-goldenrod);
  border: 2px solid var(--bg2);
  border-radius: 50%;
  cursor: crosshair;
  z-index: 10;
  display: none;
}
.node-card.selected .node-handle,
.node-card:hover .node-handle.show {
  display: block;
}

.node-delete-btn {
  position: absolute;
  top: -10px; left: -10px;
  width: 22px; height: 22px;
  background: var(--uc-brick);
  border: 2px solid var(--bg2);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 11;
}
.node-card.selected .node-delete-btn { display: flex; }

/* ─── EDGES (SVG layer) ─── */
.edges-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: visible;
}

.edge-path { fill: none; stroke-width: 2.2; stroke-linecap: round; transition: stroke 0.4s; }
.edge-path.locked { stroke: rgba(255,255,255,0.08); stroke-dasharray: 5 7; }
.edge-path.answering { stroke: var(--uc-goldenrod); stroke-dasharray: 6 6; animation: dash 1.2s linear infinite; }
.edge-path.correct { stroke-width: 2.5; }
@keyframes dash {
  to { stroke-dashoffset: -24; }
}

.edge-hit { fill: none; stroke: transparent; stroke-width: 22; pointer-events: stroke; cursor: pointer; }

/* ─── EDGE LABELS ─── */
.edge-label-wrap {
  position: absolute;
  transform: translate(-50%, -50%);
  z-index: 8;
}

.edge-label-badge {
  background: var(--bg2);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 4px 11px;
  font-size: 10.5px;
  color: var(--text-dim);
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-sans);
  font-weight: 500;
  display: flex; align-items: center; gap: 5px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.edge-label-badge:hover { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.3); }
.edge-label-badge.correct {
  background: rgba(169,196,127,0.18);
  border-color: rgba(169,196,127,0.5);
  color: #A9C47F;
}
.edge-label-badge.answering {
  background: rgba(234,170,0,0.18);
  border-color: rgba(234,170,0,0.6);
  color: var(--uc-goldenrod);
  animation: pulseAnswer 2s ease-in-out infinite;
}

@keyframes pulseAnswer {
  0%,100% { box-shadow: 0 2px 8px rgba(234,170,0,0.2); }
  50% { box-shadow: 0 4px 16px rgba(234,170,0,0.5); }
}

.edge-label-badge.locked-edge {
  display: none;
}

/* ─── ANSWER POPUP ─── */
.answer-popup {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5, 7, 12, 0.7);
  backdrop-filter: blur(8px);
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.answer-popup-card {
  background: var(--bg2);
  border: 1px solid var(--border-2);
  border-radius: 16px;
  padding: 28px 32px;
  width: 460px;
  max-width: 90vw;
  box-shadow: var(--shadow);
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp { from { transform: translateY(24px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.popup-relationship {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--uc-goldenrod);
  margin-bottom: 8px;
}

.popup-nodes {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.popup-node-label {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  flex: 1;
  text-align: center;
  line-height: 1.4;
}

.popup-arrow { color: var(--text-muted); font-size: 22px; flex-shrink: 0; }

.popup-hint {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 14px;
  line-height: 1.7;
  background: rgba(234,170,0,0.07);
  border: 1px solid rgba(234,170,0,0.2);
  border-radius: 10px;
  padding: 12px 14px;
  animation: fadeIn 0.3s ease;
}
.popup-hint strong { color: var(--uc-goldenrod); }

.popup-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
}
.popup-label em { color: var(--text); font-style: normal; font-weight: 600; }

.popup-input,
.popup-select {
  width: 100%;
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 11px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  outline: none;
  transition: all 0.15s;
  margin-bottom: 12px;
}
.popup-input:focus, .popup-select:focus { border-color: var(--uc-goldenrod); background: var(--bg4); }
.popup-input.correct { border-color: var(--uc-ivy); background: rgba(169,196,127,0.08); }
.popup-input.wrong { border-color: var(--uc-brick); background: rgba(180,106,85,0.08); animation: shake 0.4s; }

.math-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: -4px 0 12px;
}

.math-token-btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 9px;
  cursor: pointer;
  transition: all 0.15s;
}

.math-token-btn:hover {
  border-color: var(--uc-goldenrod);
  color: var(--text);
  background: var(--bg4);
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.popup-actions { display: flex; gap: 8px; margin-top: 6px; }

.btn {
  padding: 10px 18px;
  border-radius: 10px;
  font-family: var(--font-sans-strong);
  font-size: 13px;
  font-weight: normal;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}
.btn-primary { background: var(--uc-lake); color: #0a0c12; flex: 1; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { color: var(--text); background: var(--bg3); }
.btn-danger-ghost { color: #B46A55; border-color: #B46A5555; }
.btn-danger-ghost:hover { color: #ECA154; background: #B46A5518; }
.btn-success { background: var(--uc-ivy); color: #0a0c12; }

.popup-feedback {
  margin-top: 8px;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 12.5px;
  font-weight: 600;
  text-align: center;
  animation: fadeIn 0.2s ease;
}
.popup-feedback.correct { background: rgba(169,196,127,0.12); color: #A9C47F; }
.popup-feedback.wrong { background: rgba(180,106,85,0.12); color: var(--uc-brick); }
.popup-feedback.hint { background: rgba(234,170,0,0.12); color: var(--uc-goldenrod); }

.attempt-dots {
  display: flex;
  gap: 5px;
  margin-bottom: 14px;
}
.attempt-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition: background 0.2s;
}
.attempt-dot.wrong { background: var(--uc-brick); }
.attempt-dot.correct { background: var(--uc-ivy); }

/* ─── COMPLETION ─── */
.completion-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(10px);
  animation: fadeIn 0.5s ease;
}

.completion-card {
  text-align: center;
  animation: celebrationPop 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  max-width: 480px;
}
@keyframes celebrationPop {
  0% { transform: scale(0.4) rotate(-6deg); opacity: 0; }
  60% { transform: scale(1.08) rotate(2deg); opacity: 1; }
  100% { transform: scale(1) rotate(0); }
}

.completion-emoji { font-size: 90px; display: block; margin-bottom: 16px; }
.completion-title {
  font-size: 38px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}
.completion-sub { font-size: 16px; color: var(--text-muted); margin-bottom: 32px; line-height: 1.6; }
.completion-sub strong { color: var(--text); }

.stars { display: flex; justify-content: center; gap: 10px; margin-bottom: 32px; }
.star {
  font-size: 40px;
  animation: starPop 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
  display: inline-block;
}
.star:nth-child(1) { animation-delay: 0.4s; }
.star:nth-child(2) { animation-delay: 0.6s; }
.star:nth-child(3) { animation-delay: 0.8s; }
@keyframes starPop {
  from { transform: scale(0) rotate(-30deg); opacity: 0; }
  to { transform: scale(1) rotate(0); opacity: 1; }
}

#confetti-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 250;
}

/* ─── ADMIN BUILDER ─── */
.admin-toolbar {
  position: absolute;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  background: var(--bg2);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  padding: 8px;
  display: flex;
  gap: 6px;
  z-index: 20;
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  align-items: center;
}

.admin-tool-btn {
  padding: 8px 14px;
  border-radius: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; gap: 6px;
}
.admin-tool-btn:hover { background: var(--bg3); color: var(--text); }
.admin-tool-btn.active { background: var(--uc-goldenrod); color: #0a0c12; }

.admin-tool-divider { width: 1px; height: 24px; background: var(--border); margin: 0 4px; }

.admin-tool-input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-family: inherit;
  font-size: 12px;
  color: var(--text);
  outline: none;
  width: 180px;
}
.admin-tool-input:focus { border-color: var(--uc-goldenrod); }

/* color picker swatches */
.color-swatches { display: flex; gap: 4px; padding: 0 6px; }
.color-swatch {
  width: 22px; height: 22px;
  border-radius: 6px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}
.color-swatch.active { border-color: #fff; transform: scale(1.1); }

/* Inspector panel */
.inspector {
  position: absolute;
  top: 80px; right: 20px;
  width: 320px;
  background: var(--bg2);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  padding: 18px;
  z-index: 15;
  box-shadow: var(--shadow);
  max-height: calc(100vh - 120px);
  overflow-y: auto;
}

.inspector-title {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
  display: flex; align-items: center; justify-content: space-between;
}

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field-label { font-size: 10.5px; font-weight: 600; color: var(--text-muted); letter-spacing: 0.6px; text-transform: uppercase; }
.field-input,
.field-textarea,
.field-select {
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--text);
  outline: none;
  transition: border-color 0.15s;
}
.field-input:focus, .field-textarea:focus, .field-select:focus { border-color: var(--uc-goldenrod); }
.field-textarea { resize: vertical; min-height: 60px; font-family: inherit; }

.field-help { font-size: 10.5px; color: var(--text-muted); line-height: 1.5; margin-top: 2px; }

.field-row { display: flex; gap: 8px; }
.field-row .field { flex: 1; }

.btn-row { display: flex; gap: 8px; margin-top: 6px; }
.btn-sm { padding: 7px 12px; font-size: 11.5px; }

/* Map manager */
.maps-manager {
  position: relative;
  inset: auto;
  padding: 18px 22px 24px;
  overflow: hidden;
  z-index: 5;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-repo-sync-banner {
  margin: 18px 22px 0;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(234,170,0, 0.45);
  background: rgba(234,170,0, 0.12);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.admin-repo-sync-copy {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 12px;
  line-height: 1.35;
}

.admin-repo-sync-copy strong {
  color: #F3D03E;
  font-size: 12.5px;
}

.maps-manager-subject-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 14px 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(17, 20, 29, 0.52);
  border-radius: 12px;
}

.maps-manager-subject-left {
  display: flex;
  align-items: center;
  gap: 11px;
}

.maps-manager-subject-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid rgba(62,177,200,0.2);
  background: rgba(62,177,200,0.1);
  color: #3EB1C8;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.maps-manager-subject-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.25px;
}

.maps-manager-subject-meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.maps-manager-actions {
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  align-items: center;
}

.maps-manager-overflow-wrap {
  position: relative;
}

.maps-manager-overflow-btn {
  width: 34px;
  min-width: 34px;
  padding: 0;
  justify-content: center;
  font-size: 16px;
}

.maps-manager-overflow-menu {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--bg2);
  border: 1px solid var(--border-2);
  border-radius: 11px;
  min-width: 210px;
  padding: 6px;
  box-shadow: var(--shadow);
  z-index: 30;
}

.maps-manager-overflow-item {
  width: 100%;
  text-align: left;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12.5px;
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
}

.maps-manager-overflow-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
}

.maps-manager-overflow-item.danger {
  color: var(--uc-brick);
}

.maps-manager-overflow-item.danger:hover {
  background: rgba(180,106,85,0.14);
  color: var(--uc-brick);
}

.maps-manager-overflow-divider {
  height: 1px;
  background: var(--border);
  margin: 5px 2px;
}

.maps-manager-filter-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 2px;
}

.maps-manager-filter-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-right: 2px;
}

.maps-manager-filter-chip {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 11.5px;
  border-radius: 999px;
  padding: 4px 11px;
  cursor: pointer;
}

.maps-manager-filter-chip:hover {
  color: var(--text);
  border-color: var(--border-2);
}

.maps-manager-filter-chip.active {
  color: #3EB1C8;
  border-color: rgba(62,177,200,0.32);
  background: rgba(62,177,200,0.12);
}

.maps-manager-rows {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding-right: 2px;
}

.maps-manager-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
  overflow: hidden;
}

.maps-manager-row::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--row-color, var(--uc-lake));
}

.maps-manager-row:hover {
  border-color: rgba(255,255,255,0.14);
  background: rgba(17,20,29,0.9);
}

.maps-manager-row-drag {
  display: flex;
  flex-direction: column;
  gap: 2.5px;
  opacity: 0.38;
  padding: 3px 2px;
}

.maps-manager-row-drag span {
  display: block;
  width: 12px;
  height: 1.5px;
  border-radius: 1px;
  background: var(--text-muted);
}

.maps-manager-row-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.maps-manager-row-info {
  flex: 1;
  min-width: 0;
}

.maps-manager-row-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.maps-manager-row-desc {
  margin-top: 2px;
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.maps-manager-row-stats {
  display: flex;
  gap: 10px;
  flex-shrink: 0;
}

.maps-manager-row-stat {
  font-size: 11px;
  color: var(--text-muted);
}

.maps-manager-row-stat strong {
  font-size: 13px;
  color: var(--text-dim);
}

.maps-manager-row-badges {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 74px;
}

.maps-manager-status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  padding: 3px 8px;
}

.maps-manager-status-badge.builtin {
  color: #A6A6A6;
  background: rgba(166,166,166,0.1);
  border: 1px solid rgba(166,166,166,0.2);
}

.maps-manager-status-badge.published {
  color: #A9C47F;
  background: rgba(169,196,127,0.12);
  border: 1px solid rgba(169,196,127,0.22);
}

.maps-manager-status-badge.draft {
  color: var(--uc-goldenrod);
  background: rgba(234,170,0,0.1);
  border: 1px solid rgba(234,170,0,0.22);
}

.maps-manager-row-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.maps-manager-empty {
  border: 1px dashed var(--border-2);
  border-radius: 12px;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 12px;
  text-align: center;
  padding: 16px;
}

/* Edge inspector hover */
.edge-clickable {
  cursor: pointer;
}

/* Hint when answering */
.empty-canvas-hint {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  pointer-events: none;
}
.empty-canvas-hint-title { font-size: 18px; font-weight: 600; margin-bottom: 6px; color: var(--text); }

/* Mini-help */
.mini-help {
  position: absolute;
  bottom: 18px; left: 18px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 11px;
  color: var(--text-muted);
  z-index: 10;
  max-width: 300px;
  line-height: 1.6;
  cursor: pointer;
  user-select: none;
}
.mini-help strong { color: var(--text); }
.mini-help-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.mini-help-caret {
  color: var(--text-dim);
  font-size: 12px;
}

.mini-help-body {
  margin-top: 6px;
}

.mini-help.collapsed {
  max-width: 170px;
}

.mini-help.collapsed .mini-help-body {
  display: none;
}

.mini-help.open {
  max-width: 300px;
}

.mini-help kbd {
  background: var(--bg4);
  border: 1px solid var(--border-2);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 10px;
}

.mini-help-inline-icon {
  display: inline-block;
  width: 12px;
  height: 12px;
  margin: 0 2px;
  vertical-align: -1px;
}

.zoom-control {
  position: absolute;
  bottom: 18px; right: 18px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 4px;
  display: flex;
  gap: 0;
  z-index: 10;
  font-size: 11px;
}
.zoom-control button {
  width: 28px; height: 28px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  border-radius: 6px;
}
.zoom-control button:hover { background: var(--bg3); color: var(--text); }
.zoom-control-pct {
  display: flex; align-items: center; padding: 0 8px;
  color: var(--text-dim);
  min-width: 44px;
  justify-content: center;
}

@media (max-width: 1100px) {
  .topbar {
    padding: 0 12px;
    gap: 8px;
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .topbar-logo {
    flex-shrink: 0;
  }

  .topbar-logo-text {
    font-size: 12px;
  }

  .topbar-context {
    max-width: min(30vw, 280px);
  }

  .topbar-context-subject {
    display: none;
  }

  .topbar-divider {
    height: 16px;
  }

  .topbar-context-path {
    font-size: 11.5px;
  }

  .topbar-role-btn {
    padding: 5px 10px;
    font-size: 11.5px;
  }

  .app-shell.sidebar-collapsed .topbar-progress {
    display: flex;
    align-items: center;
    gap: 5px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.11);
    border-radius: 6px;
    padding: 4px 8px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-group {
    display: flex;
    align-items: center;
    margin-right: 2px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-bar {
    width: 30px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-value {
    min-width: 2.4ch;
    font-size: 10.5px;
    font-weight: 600;
    color: var(--uc-ivy);
  }

  .app-shell.sidebar-collapsed .topbar-role-switcher {
    margin-left: 8px;
  }

  .map-header {
    top: 14px;
    left: 14px;
    right: 14px;
    gap: 10px;
    flex-direction: column;
    align-items: stretch;
  }

  .map-title {
    font-size: 19px;
  }

  .map-controls {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .edge-label-slider {
    min-height: 36px;
    padding: 0 12px;
  }

  .mini-help {
    max-width: 230px;
    font-size: 10.5px;
  }

  .admin-toolbar {
    left: 14px;
    right: 14px;
    transform: none;
    width: auto;
    overflow-x: auto;
    justify-content: flex-start;
  }

  .inspector {
    top: 132px;
    right: 12px;
    width: min(320px, calc(100vw - 24px));
  }

  .maps-manager {
    padding: 18px 14px 22px;
  }

  .admin-repo-sync-banner {
    margin: 18px 14px 0;
    flex-direction: column;
    align-items: flex-start;
  }

  .maps-manager-subject-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .maps-manager-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .maps-manager-row {
    flex-wrap: wrap;
    gap: 8px;
  }

  .maps-manager-row-info {
    min-width: min(62vw, 360px);
  }

  .maps-manager-row-actions {
    width: 100%;
    justify-content: flex-end;
  }
}

/* Sidebar backdrop — hidden on desktop, shown by mobile query */
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  top: 60px;
  background: rgba(0,0,0,0.52);
  z-index: 75;
  animation: fadeInBackdrop 0.18s ease;
}

@keyframes fadeInBackdrop {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Topbar text labels — visible by default, hidden on mobile */
@media (max-width: 760px) {
  .app-shell,
  .app-shell.sidebar-collapsed {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: absolute;
    top: 60px;
    left: 0;
    bottom: 0;
    width: min(86vw, 320px);
    z-index: 80;
    border-right: 1px solid var(--border-2);
    box-shadow: 12px 0 28px rgba(0,0,0,0.45);
    background: rgba(17, 20, 29, 0.97);
    backdrop-filter: blur(10px);
    transition: transform 0.22s ease, opacity 0.18s ease;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .app-shell.sidebar-collapsed .sidebar {
    transform: translateX(-104%);
    opacity: 0;
    pointer-events: none;
    border-right-color: transparent;
  }

  .sidebar-backdrop {
    display: block;
  }

  .topbar-logo-text,
  .topbar-progress {
    display: none;
  }

  .app-shell.sidebar-collapsed .topbar-progress {
    display: flex;
    align-items: center;
    gap: 5px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.11);
    border-radius: 6px;
    padding: 4px 8px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-group {
    display: flex;
    align-items: center;
    margin-right: 2px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-bar {
    width: 28px;
    display: block;
  }

  .app-shell.sidebar-collapsed .topbar-progress-value {
    min-width: 2.5ch;
    font-size: 10.5px;
    font-weight: 600;
    color: var(--uc-ivy);
  }

  .topbar {
    padding: 0 max(10px, env(safe-area-inset-right)) 0 max(10px, env(safe-area-inset-left));
    gap: 7px;
    overflow: hidden;
  }

  .topbar-divider {
    display: none;
  }

  .topbar-context {
    display: none;
  }

  .topbar-context-subject,
  .topbar-context-sep {
    display: none;
  }

  .topbar-context-path {
    font-size: 11px;
  }

  .topbar-role-switcher {
    margin-left: 6px;
  }

  .app-shell.sidebar-collapsed .topbar-role-switcher {
    margin-left: 8px;
  }

  .topbar-role-btn {
    min-height: 32px;
    padding: 5px 9px;
    font-size: 11px;
  }

  .topbar-icon-btn {
    width: 32px;
    height: 32px;
  }

  .sidebar-folder-control-btn {
    min-height: 28px;
    padding: 5px 9px;
    font-size: 10.5px;
  }

  .sidebar-folder-title {
    font-size: 10.5px;
    padding-top: 11px;
    padding-bottom: 6px;
  }

  .sidebar-item {
    padding: 11px 12px;
  }

  .sidebar-item-reset {
    width: 22px;
    height: 22px;
    opacity: 1;
  }

  .sidebar-item-reset-icon {
    width: 12px;
    height: 12px;
  }

  .map-header {
    top: 12px;
    left: 10px;
    right: 10px;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
  }

  .map-title-block {
    display: none;
  }

  .map-controls .topbar-progress {
    display: none;
  }

  .map-title {
    font-size: 17px;
  }

  .map-desc {
    font-size: 11.5px;
  }

  .icon-btn {
    width: 36px;
    height: 36px;
  }

  .edge-label-slider {
    width: auto;
    flex-shrink: 1;
    justify-content: space-between;
  }

  .edge-label-slider input[type="range"] {
    flex: 1;
    min-width: 80px;
  }

  .map-controls {
    flex-wrap: nowrap;
    align-items: center;
  }

  .edge-label-badge {
    font-size: 10px;
    padding: 8px 12px;
    min-height: 36px;
    min-width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .node-card {
    padding: 11px 14px;
    font-size: 12.5px;
  }

  .zoom-control {
    right: 10px;
    bottom: 10px;
  }

  .mini-help {
    left: 10px;
    bottom: 10px;
    max-width: min(62vw, 250px);
    font-size: 10px;
    padding: 8px 10px;
  }

  .mini-help.collapsed {
    max-width: 140px;
  }

  .mini-help.open {
    max-width: min(62vw, 250px);
  }

  .answer-popup-card {
    width: min(96vw, 460px);
    padding: 20px 14px;
  }

  .popup-nodes {
    flex-direction: column;
    align-items: stretch;
  }

  .popup-arrow {
    align-self: center;
    transform: rotate(90deg);
  }

  .maps-manager {
    padding: 12px 10px 14px;
  }

  .admin-repo-sync-banner {
    margin: 12px 10px 0;
    padding: 10px 11px;
  }

  .maps-manager-subject-title {
    font-size: 14px;
  }

  .maps-manager-subject-meta {
    font-size: 11px;
  }

  .maps-manager-filter-bar {
    flex-wrap: wrap;
    gap: 6px;
  }

  .maps-manager-row {
    padding: 11px 10px;
  }

  .maps-manager-row-stats {
    width: 100%;
  }

  .maps-manager-row-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .maps-manager-row-actions .btn {
    min-height: 32px;
  }

  .maps-manager-overflow-menu {
    right: auto;
    left: 0;
    min-width: min(82vw, 250px);
  }
}

@media (max-width: 420px) {
  .app-shell.sidebar-collapsed .topbar-progress-bar {
    display: none;
  }

  .app-shell.sidebar-collapsed .topbar-progress {
    padding: 4px 6px;
  }

  .app-shell.sidebar-collapsed .topbar-progress-value {
    min-width: 2.1ch;
  }
}