:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --text: #1d2733;
  --muted: #66717e;
  --border: #d8dee6;
  --primary: #1f6feb;
  --primary-dark: #1757ba;
  --warning: #d97706;
  --danger: #c92a2a;
  --success: #218838;
  --viewer: #0c0f14;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: 600;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 7px;
  padding: 10px 14px;
  font-weight: 700;
  text-decoration: none;
}

button:disabled {
  opacity: 0.45;
  cursor: default;
}

.primary {
  background: var(--primary);
  color: white;
}

.primary:hover:not(:disabled) {
  background: var(--primary-dark);
}

.secondary {
  background: white;
  border-color: var(--border);
  color: var(--text);
}

.warning {
  background: var(--warning);
  color: white;
}

.danger {
  background: var(--danger);
  color: white;
}

.topbar {
  min-height: 74px;
  padding: 14px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-logo {
  width: 58px;
  height: 44px;
  object-fit: contain;
  flex: 0 0 auto;
  filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.35));
}

.public-landing-page {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(47,129,247,0.12), transparent 45%),
    var(--bg);
}

.public-landing {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px 16px;
}

.public-landing-panel {
  width: min(880px, 100%);
  padding: 38px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.38);
}

.public-landing-brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.public-landing-logo {
  width: 132px;
  height: 96px;
  object-fit: contain;
  flex: 0 0 auto;
}

.public-landing-panel h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1;
}

.public-landing-copy {
  max-width: 680px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.public-landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.public-landing-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
}

.topbar h1 {
  margin: 0;
  font-size: 23px;
  letter-spacing: 0.04em;
}

.subtitle {
  color: var(--muted);
  margin-top: 4px;
  font-size: 13px;
}

.top-project-name {
  display: none;
  margin-top: 6px;
  color: var(--text);
  font-size: 16px;
  font-weight: 800;
}

.top-actions {
  display: flex;
  gap: 10px;
}

#signedInUser,
#adminUsersButton,
#auditLogButton,
#adminExportButton,
#diagnosticsButton,
#topPasswordButton,
#projectInstructionsButton,
#uploadInstructionsButton,
#removeInstructionsButton,
#exportButton,
#exportJsonButton,
#exportMlButton {
  display: none !important;
}

.home-view {
  min-height: calc(100vh - 74px);
  padding: 32px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(180deg, rgba(47,129,247,0.08), transparent 42%),
    var(--bg);
}

.home-panel {
  width: min(860px, 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  padding: 34px;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.35);
}

.home-hero {
  border-bottom: 1px solid var(--border);
  padding-bottom: 22px;
}

.home-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.home-panel h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1;
}

.home-copy {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.5;
  margin: 18px 0 0;
}

.home-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.home-actions button,
.home-actions .button-link {
  min-height: 54px;
  justify-content: flex-start;
  text-align: left;
  border-color: var(--border);
  background: rgba(255,255,255,0.03);
}

.home-actions .primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.home-summary {
  margin-top: 22px;
  color: var(--muted);
  font-size: 14px;
}

.project-view {
  min-height: calc(100vh - 74px);
  padding: 32px 16px;
  display: flex;
  justify-content: center;
}

.project-panel {
  width: min(1180px, 100%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px;
}

.project-panel:has(#adminUsersPanel:not(.hidden)) {
  width: min(1480px, calc(100vw - 32px));
}

.project-panel h2 {
  margin: 0 0 18px;
}

.project-panel label {
  display: block;
  margin: 14px 0;
  font-weight: 600;
}

.project-panel input[type="text"],
.project-panel input[type="email"],
.project-panel input[type="password"],
.project-panel select,
.project-panel input[type="file"] {
  display: block;
  width: 100%;
  margin-top: 7px;
  padding: 11px;
  border: 1px solid var(--border);
  border-radius: 7px;
}

.checkbox-row {
  display: flex !important;
  gap: 9px;
  align-items: center;
  font-weight: normal !important;
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 28px 0;
}

.project-list {
  display: grid;
  gap: 10px;
}

.project-item {
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.project-item-title {
  font-weight: 700;
}

.project-item-details {
  color: var(--muted);
  margin-top: 4px;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.message {
  min-height: 20px;
  margin-top: 13px;
  color: var(--danger);
}

.field-help {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.label-view {
  min-height: calc(100vh - 74px);
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

.progress-panel {
  min-height: 52px;
  padding: 10px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  background: white;
  border-bottom: 1px solid var(--border);
}

#positionText {
  margin-left: 14px;
  color: var(--muted);
}

#countsText {
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  flex: 1;
  min-height: 0;
}

.viewer-column {
  min-width: 0;
  display: flex;
  flex-direction: column;
  background: var(--viewer);
}

.viewer-toolbar {
  min-height: 44px;
  background: #171b22;
  color: white;
  padding: 10px 14px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.save-state {
  color: #7ee787;
}

.save-state.saving {
  color: #f2cc60;
}

.save-state.error {
  color: #ff7b72;
}

.image-stage {
  position: relative;
  flex: 1;
  min-height: 480px;
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: center;
  background:
    linear-gradient(45deg, #11151b 25%, transparent 25%),
    linear-gradient(-45deg, #11151b 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #11151b 75%),
    linear-gradient(-45deg, transparent 75%, #11151b 75%);
  background-size: 32px 32px;
  background-position: 0 0, 0 16px, 16px -16px, -16px 0;
}

#octImage {
  display: block;
  max-width: none;
  transform-origin: center center;
  image-rendering: auto;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
}

.image-canvas-wrap {
  user-select: none;
  -webkit-touch-callout: none;
}

.image-error-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  color: #ff7b72;
  font-weight: 700;
  background: rgba(12, 15, 20, 0.88);
}

.zoom-toolbar {
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 8px;
  background: #171b22;
}

.side-panel {
  background: white;
  border-left: 1px solid var(--border);
  padding: 18px;
  overflow-y: auto;
}

.side-panel h3 {
  margin: 0 0 12px;
}

.label-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-bottom: 10px;
}

.label-button {
  min-height: 48px;
  font-size: 18px;
  background: white;
  border: 1px solid var(--border);
}

.label-button.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.full-width {
  width: 100%;
}

.text-label {
  display: block;
  margin-top: 20px;
  font-weight: 700;
}

textarea {
  width: 100%;
  margin-top: 7px;
  padding: 10px;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: 7px;
}

.status-card {
  margin-top: 18px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  justify-content: space-between;
}

.side-actions {
  display: grid;
  gap: 9px;
  margin-top: 18px;
}

.navigation {
  min-height: 64px;
  padding: 10px 18px;
  background: white;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .side-panel {
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .image-stage {
    min-height: 420px;
  }

  .progress-panel {
    align-items: flex-start;
    flex-direction: column;
  }
}


.annotation-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  padding: 8px;
  background: #171b22;
  border-bottom: 1px solid #2b313a;
}

.annotation-toolbar input {
  min-width: 220px;
  padding: 8px 10px;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.tool-button.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.image-canvas-wrap {
  position: relative;
  display: inline-block;
  line-height: 0;
}

.annotation-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: auto;
}

.annotation-layer .ann-line {
  fill: none;
  stroke: #00ff88;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.annotation-layer .ann-hit-target {
  fill: none;
  stroke: transparent;
  stroke-width: 12;
  pointer-events: stroke;
  vector-effect: non-scaling-stroke;
  cursor: pointer;
}

.annotation-layer .ann-polygon {
  fill: rgba(0, 255, 136, 0.12);
  stroke: #00ff88;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.annotation-layer .ann-point {
  fill: #ffdd57;
  stroke: #000;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.annotation-layer .ann-preview {
  fill: none;
  stroke: #66b3ff;
  stroke-width: 2;
  stroke-dasharray: 5 4;
  vector-effect: non-scaling-stroke;
}

.annotation-layer .selected {
  stroke: #ff5d5d !important;
}

#octImage {
  user-select: none;
  -webkit-user-drag: none;
}


/* ===== V0.3 UI THEME: very dark blue/black ===== */

:root {
  --bg: #05080d;
  --panel: #0b1118;
  --text: #e6edf3;
  --muted: #8b98a5;
  --border: #202a35;
  --primary: #2f81f7;
  --primary-dark: #1f6feb;
  --warning: #b86e00;
  --danger: #da3633;
  --success: #3fb950;
  --viewer: #020407;
}

body {
  background: var(--bg);
  color: var(--text);
}

.topbar,
.progress-panel,
.side-panel,
.navigation,
.project-panel {
  background: var(--panel);
  color: var(--text);
}

.project-view {
  background: var(--bg);
}

.project-panel {
  border-color: var(--border);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.35);
}

.project-item {
  background: #0e151e;
  border-color: var(--border);
}

.project-item-title {
  color: var(--text);
}

.project-item-details,
.subtitle,
#countsText,
#positionText {
  color: var(--muted);
}

.secondary {
  background: #101820;
  border-color: #2b3744;
  color: var(--text);
}

.secondary:hover:not(:disabled) {
  background: #16212c;
}

input,
textarea {
  background: #091019;
  color: var(--text);
  border-color: #2a3542 !important;
}

input::placeholder,
textarea::placeholder {
  color: #65717e;
}

.viewer-toolbar,
.annotation-toolbar,
.zoom-toolbar {
  background: #070b10;
}

.image-stage {
  background:
    linear-gradient(45deg, #05080d 25%, transparent 25%),
    linear-gradient(-45deg, #05080d 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #05080d 75%),
    linear-gradient(-45deg, transparent 75%, #05080d 75%);
  background-color: #010305;
  background-size: 32px 32px;
  background-position: 0 0, 0 16px, 16px -16px, -16px 0;
}

.label-button {
  background: #101820;
  color: var(--text);
  border-color: #2b3744;
}

.label-button:hover {
  background: #16212c;
}

.label-button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.status-card {
  background: #0e151e;
  border-color: var(--border);
}

.divider {
  background: var(--border);
}

.project-only-actions.hidden {
  display: none !important;
}


/* ===== V0.4 screen isolation ===== */
.app-screen.hidden {
  display: none !important;
}

.home-view:not(.hidden) {
  display: flex !important;
}

.project-view:not(.hidden) {
  display: flex !important;
}

.label-view:not(.hidden) {
  display: flex !important;
}

/* Never show labeling UI while project overview is active */
body.home-mode #projectView,
body.home-mode #labelView,
body.home-mode .progress-panel,
body.home-mode .workspace,
body.home-mode .viewer-column,
body.home-mode .side-panel,
body.home-mode .navigation,
body.project-mode #labelView,
body.project-mode .progress-panel,
body.project-mode .workspace,
body.project-mode .viewer-column,
body.project-mode .side-panel,
body.project-mode .navigation,
body.project-mode .project-only-actions {
  display: none !important;
}

body.project-mode #homeView,
body.label-mode #homeView,
body.label-mode #projectView {
  display: none !important;
}

/* Segmentation */
.layer-select {
  background: #091019;
  color: var(--text);
  border: 1px solid #2a3542;
  border-radius: 6px;
  padding: 8px 10px;
}

.brush-size-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
}

.brush-size-label input {
  width: 120px;
}

.mask-layer,
.annotation-layer {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.mask-layer {
  pointer-events: none;
  image-rendering: auto;
}

.annotation-layer {
  pointer-events: auto;
}

.annotation-layer .control-point {
  fill: #ffffff;
  stroke: #ff4d4d;
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
  cursor: move;
}

.annotation-layer .control-point:hover {
  fill: #ffdd57;
}

.annotation-layer .ann-label {
  fill: #ffffff;
  font-size: 12px;
  paint-order: stroke;
  stroke: #000;
  stroke-width: 3px;
  vector-effect: non-scaling-stroke;
}


/* ===== V0.5 Zoom/Pan ===== */
.image-stage {
  overflow: hidden !important;
  cursor: default;
}

.image-stage.pan-ready {
  cursor: grab;
}

.image-stage.panning {
  cursor: grabbing;
}

.image-canvas-wrap {
  transform-origin: 0 0;
  will-change: transform;
}

.zoom-help {
  color: var(--muted);
  font-size: 12px;
  margin-left: 10px;
}

/* Layer manager */
.layer-manager {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.layer-manager-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.layer-manager-header h3 {
  margin: 0;
}

.small-button {
  padding: 6px 9px;
  font-size: 12px;
}

.layer-list {
  display: grid;
  gap: 7px;
  margin-top: 10px;
}

.layer-row {
  display: grid;
  grid-template-columns: 26px 26px 28px 1fr auto;
  gap: 6px;
  align-items: center;
  padding: 7px;
  background: #0e151e;
  border: 1px solid var(--border);
  border-radius: 7px;
}

.layer-row input[type="color"] {
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  background: transparent;
}

.layer-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: pointer;
}

.layer-name.active {
  font-weight: 700;
  text-decoration: underline;
}

.layer-icon-button {
  padding: 3px 5px;
  background: transparent;
  color: var(--text);
  border: 0;
  cursor: pointer;
}

.layer-kind {
  color: var(--muted);
  font-size: 11px;
}


/* ===== V0.6 Pan robustness ===== */
.annotation-layer.navigation-pass-through {
  pointer-events: none !important;
}

.image-stage.pan-ready {
  cursor: grab !important;
  touch-action: none;
}

.image-stage.panning {
  cursor: grabbing !important;
  user-select: none;
}

#octImage {
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
}

.layer-header-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}


.series-text {
  margin-left: 14px;
  color: var(--muted);
  font-size: 13px;
}


.grader-panel {
  display: flex;
  align-items: end;
  gap: 10px;
  padding: 12px;
  margin-bottom: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0b1118;
}

.grader-panel.hidden {
  display: none !important;
}

.grader-panel label {
  margin: 0;
  flex: 1;
}

.grader-panel input {
  margin-top: 4px;
}


/* ===== V0.9.2 Grader registry ===== */

.grader-panel {
  display: block;
}

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

.grader-register-controls {
  display: flex;
  gap: 10px;
  align-items: end;
  margin-top: 10px;
  flex-wrap: wrap;
}

.grader-register-controls label {
  min-width: 180px;
  flex: 1;
}

.grader-register-controls select,
.grader-register-controls input {
  width: 100%;
  margin-top: 4px;
}

.grader-register-status {
  margin-top: 10px;
  color: var(--muted);
}

.muted-text {
  color: var(--muted);
  font-size: 13px;
}

.active-grader-badge {
  display: inline-flex;
  align-items: center;
  margin-left: 10px;
  padding: 4px 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #0b1623;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.project-card-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}


/* ===== V0.10 active grader ===== */
.active-grader-badge {
  background: #10243a !important;
  border: 1px solid #4ea1ff !important;
  padding: 6px 12px !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  letter-spacing: 0.04em;
  position: sticky;
  top: 8px;
  z-index: 20;
}

/* ===== V0.10 pBoundary ===== */
.pboundary-preview {
  stroke-width: 2.5;
}

.pboundary-control-point {
  fill: #ffffff;
  stroke: #00192e;
  stroke-width: 0.8;
  pointer-events: none;
}


/* ===== V0.11 propagation ===== */
.propagation-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  margin-right: auto;
}

.replace-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}


/* V0.12 Completed workflow */
button.success {
  border-color: #548a68;
  font-weight: 700;
}


/* ===== V0.13 collapsible Layers ===== */
#layerManagerBody.collapsed {
  display: none;
}

.layer-collapse-button {
  min-width: 32px;
  padding: 5px 8px;
}

.layer-body-actions {
  margin-top: 10px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ===== V0.13 thinner retinal boundaries ===== */
.annotation-layer .ann-line.ann-boundary {
  stroke-width: 1.15;
}

.annotation-layer .ann-preview.ann-boundary-preview {
  stroke-width: 1.15;
}

.annotation-layer .ann-line.ann-boundary.selected {
  stroke-width: 1.35;
}

/* Completed button also communicates toggle state */
button.success.active-completed {
  box-shadow: inset 0 0 0 1px currentColor;
}


/* ===== V0.14 authenticated users ===== */
.signed-in-user {
  color: var(--muted);
  font-size: 13px;
  align-self: center;
}

.admin-user-list {
  display: grid;
  gap: 16px;
  width: min(1360px, 100%);
  margin: 16px auto 0;
}

.admin-user-filter-panel {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(150px, 0.8fr) minmax(190px, 1fr) minmax(140px, 0.7fr) minmax(150px, 0.8fr) auto;
  gap: 10px;
  align-items: end;
  width: min(1360px, 100%);
  margin: 16px auto 0;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}

.admin-user-filter-panel label {
  display: grid !important;
  gap: 5px;
  margin: 0 !important;
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.project-panel .admin-user-filter-panel input,
.project-panel .admin-user-filter-panel select {
  display: block;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  margin-top: 0;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 7px;
}

.admin-user-filter-panel .small-button {
  align-self: end;
  min-height: 40px;
  white-space: nowrap;
}

.admin-group-list {
  display: grid;
  gap: 8px;
  width: min(720px, 100%);
  margin: 12px 0 0;
}

.admin-group-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}

.admin-group-row span {
  color: var(--text);
  font-weight: 700;
}

.admin-user-row {
  display: flex !important;
  flex-direction: column;
  align-items: stretch;
  gap: 18px;
  width: 100%;
  padding: 22px 24px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.02);
}

.admin-user-main {
  display: grid;
  grid-template-columns: minmax(360px, 1fr) minmax(260px, 320px);
  gap: 22px;
  align-items: start;
  width: 100%;
}

.admin-user-info {
  display: grid;
  gap: 5px;
  min-width: 220px;
}

.admin-user-info span {
  color: var(--muted);
  font-size: 12px;
}

.admin-user-progress {
  display: grid;
  gap: 6px;
}

.admin-user-progress-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.admin-user-progress-row .small-button {
  white-space: nowrap;
}

.admin-user-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.admin-user-profile-editor {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(240px, 1fr) auto;
  gap: 10px;
  margin-top: 14px;
  align-items: start;
}

.admin-user-profile-editor input {
  min-width: 0;
  padding: 8px 10px;
}

.admin-profile-caption {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 11px;
}

.admin-help-text {
  margin: 8px 0 12px;
}

.admin-user-role-control {
  display: grid;
  gap: 4px;
  min-width: 0;
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.admin-user-section {
  display: grid;
  gap: 8px;
  min-width: 0;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.015);
}

.admin-user-section > strong {
  color: var(--text);
  font-size: 13px;
}

.admin-user-assignment-grid {
  display: grid;
  grid-template-columns: minmax(200px, 260px) minmax(760px, 2fr);
  gap: 16px;
  align-items: start;
  width: 100%;
}

.admin-user-projects .admin-project-checklist.compact {
  min-height: 320px;
}

.admin-section-help {
  color: var(--muted);
  font-size: 12px;
}

.platform-role-select {
  width: 100%;
}

.small-select {
  width: auto;
  min-width: 120px;
  padding: 8px 10px;
}

.app-footer {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  padding: 18px 24px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-size: 13px;
}

.app-footer a,
.link-button {
  color: var(--text);
  background: transparent;
  border: 0;
  padding: 0;
  font: inherit;
  text-decoration: underline;
  cursor: pointer;
}

.admin-project-assignment-label {
  min-width: 260px;
  flex: 1.4;
}

.admin-project-checklist {
  display: grid;
  gap: 6px;
  min-width: 240px;
  max-height: 190px;
  overflow: auto;
  margin-top: 4px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}

.admin-project-checklist.compact {
  min-width: 0;
  max-width: none;
  width: 100%;
  max-height: 300px;
}

.admin-project-checkbox {
  display: grid;
  grid-template-columns: 22px minmax(180px, 1fr) minmax(150px, 190px);
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--text);
  font-size: 13px;
}

.admin-project-checkbox span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.admin-project-role-select {
  width: 100%;
  margin-left: 0;
}

.admin-project-checkbox input {
  width: auto;
  margin: 0;
  justify-self: start;
}

.admin-login-log {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.admin-login-log-list {
  display: grid;
  gap: 6px;
  max-height: 320px;
  overflow: auto;
}

.admin-login-log-row {
  display: grid;
  grid-template-columns: minmax(110px, 180px) minmax(220px, 1fr) minmax(140px, 1fr);
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
  font-size: 12px;
}

.admin-login-log-row span {
  color: var(--muted);
}

.admin-login-log-row.failed {
  border-color: rgba(255, 102, 102, 0.45);
}

body.cfp-mode .brush-size-label,
body.cfp-mode #retinaPresetButton,
body.cfp-mode .propagation-controls,
body.cfp-mode #previousSeriesButton,
body.cfp-mode #nextSeriesButton {
  display: none !important;
}

body.binary-mode .annotation-toolbar,
body.binary-mode .layer-manager,
body.binary-mode .mobile-panel-tabs,
body.binary-mode #clearLabelButton,
body.binary-mode .propagation-controls,
body.binary-mode #previousSeriesButton,
body.binary-mode #nextSeriesButton,
body.binary-mode #skipButton,
body.binary-mode #errorButton,
body.binary-mode #needsReviewButton {
  display: none !important;
}

body.binary-mode .label-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

body.binary-mode .label-button {
  min-height: 72px;
  font-size: 28px;
}

.binary-swipe-overlay {
  --swipe-opacity: 0;
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 5;
  opacity: var(--swipe-opacity);
  transition: opacity 120ms ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.binary-swipe-overlay.show-left {
  background: rgba(255, 35, 35, 0.38);
}

.binary-swipe-overlay.show-right {
  background: rgba(35, 190, 75, 0.38);
}

.binary-swipe-overlay.show-up {
  background: rgba(255, 255, 255, 0.38);
}

.binary-swipe-label {
  position: absolute;
  border: 5px solid currentColor;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 900;
  font-size: 34px;
  letter-spacing: 0;
  text-transform: uppercase;
  background: rgba(0, 0, 0, 0.22);
  opacity: 0;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.binary-swipe-label-left {
  color: #ff6b6b;
}

.binary-swipe-label-right {
  color: #3fb950;
}

.binary-swipe-label-up {
  color: #ffffff;
  white-space: nowrap;
  font-size: 22px;
}

.binary-swipe-overlay.show-left .binary-swipe-label-left,
.binary-swipe-overlay.show-right .binary-swipe-label-right,
.binary-swipe-overlay.show-up .binary-swipe-label-up {
  opacity: 1;
}

.mobile-panel-tabs {
  display: none;
}

.mobile-cfp-bar {
  display: none;
}

.mobile-binary-bar {
  display: none;
}

.binary-back-stack {
  display: grid;
  justify-items: center;
  gap: 4px;
}

.binary-mobile-counter {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
  padding: 0;
}

.binary-help {
  display: none;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 13px;
}

.mobile-view-lock-button {
  display: none;
}

.admin-project-checklist-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 1;
  padding-bottom: 6px;
  background: #0b1118;
}

.admin-project-checklist-tools input {
  min-width: 0;
}

.admin-user-progress {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  font-size: 12px;
}

.admin-user-progress span {
  color: var(--muted);
}

.admin-project-save-status {
  color: var(--muted);
  font-size: 12px;
  min-height: 18px;
}

.admin-project-save-status.error {
  color: var(--danger);
}

.dashboard-project-card {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(300px, 1.2fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}

.dashboard-open-project-button {
  min-width: 180px;
}

.project-page-button {
  min-width: 190px;
}

.dashboard-project-card strong,
.dashboard-project-card span {
  display: block;
}

.dashboard-project-card span {
  color: var(--muted);
  font-size: 13px;
}

.dashboard-project-metrics,
.admin-project-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.metric-card,
.dashboard-project-metrics span,
.admin-progress-row,
.admin-project-tools {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
}

.metric-card,
.dashboard-project-metrics span {
  padding: 10px 12px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.metric-card strong {
  display: block;
  margin-top: 4px;
  font-size: 20px;
}

.admin-user-progress-list {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}

.admin-progress-row {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(160px, 0.6fr) minmax(260px, 1.4fr);
  gap: 10px;
  align-items: center;
  padding: 11px 12px;
}

.admin-progress-row span {
  color: var(--muted);
  font-size: 13px;
}

.admin-project-tools {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) auto auto auto;
  gap: 10px;
  align-items: center;
  margin: 14px 0;
  padding: 12px;
}

@media (max-width: 1180px) {
  .admin-user-main,
  .admin-user-assignment-grid {
    grid-template-columns: 1fr;
  }

  .admin-user-account {
    max-width: none;
  }

  .dashboard-project-card,
  .admin-progress-row,
  .admin-project-tools,
  .admin-user-filter-panel {
    grid-template-columns: 1fr;
  }
}

.instructions-modal,
.binary-review-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 0, 0, 0.72);
}

.instructions-modal-panel,
.binary-review-panel {
  width: min(1100px, 100%);
  height: min(88vh, 920px);
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

.binary-review-panel {
  width: min(420px, 100%);
  height: auto;
  max-height: min(70vh, 620px);
}

.instructions-modal-header {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

.instructions-modal iframe {
  width: 100%;
  height: 100%;
  border: 0;
  background: #111;
}

.binary-review-list {
  display: grid;
  gap: 8px;
  overflow: auto;
  padding: 12px;
}

.binary-review-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  text-align: left;
  border-radius: 8px;
}

.binary-review-item span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted);
}

@media (max-width: 820px) {
  html,
  body {
    min-width: 0;
    overflow-x: hidden;
  }

  body {
    font-size: 16px;
  }

  button,
  .button-link,
  input,
  select,
  textarea {
    min-height: 44px;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 60;
    min-height: 0;
    padding: 12px;
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .brand-lockup {
    gap: 8px;
  }

  .brand-logo {
    width: 44px;
    height: 34px;
  }

  .brand-lockup h1 {
    font-size: 24px;
  }

  .public-landing-brand {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .public-landing-logo {
    width: 108px;
    height: 78px;
  }

  .top-actions {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    -webkit-overflow-scrolling: touch;
  }

  .top-actions > * {
    flex: 0 0 auto;
  }

  body.label-mode .top-project-name {
    display: block;
  }

  #exportButton,
  #exportJsonButton,
  #exportMlButton,
  #adminExportButton,
  #homeAdminExportButton {
    display: none !important;
  }

  .home-view,
  .project-view {
    align-items: stretch;
    padding: 14px 10px;
  }

  .home-panel,
  .project-panel {
    width: 100%;
    max-width: none;
    padding: 16px;
    border-radius: 10px;
  }

  .home-panel h2,
  .project-panel h2 {
    font-size: 28px;
    line-height: 1.15;
  }

  .home-actions,
  .project-actions,
  .export-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .project-item,
  .admin-user-row,
  .admin-login-log-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    align-items: stretch;
  }

  .admin-user-main,
  .admin-user-assignment-grid,
  .admin-user-profile-editor {
    grid-template-columns: 1fr;
  }

  .admin-user-section {
    padding: 10px;
  }

  .project-item-actions,
  .admin-user-actions {
    display: grid;
    grid-template-columns: 1fr;
    max-width: none;
    justify-content: stretch;
  }

  .admin-user-actions button,
  .admin-user-actions .button-link,
  .project-item-actions button {
    width: 100%;
  }

  .admin-project-assignment-label,
  .admin-project-checklist,
  .admin-project-checklist.compact {
    min-width: 0;
    max-width: none;
    width: 100%;
  }

  .admin-project-checklist,
  .admin-project-checklist.compact {
    max-height: 220px;
  }

  .admin-project-checkbox {
    min-height: 40px;
    align-items: center;
  }

  .label-view:not(.hidden) {
    min-height: calc(100vh - 98px);
  }

  .progress-panel {
    padding: 10px 12px;
    gap: 8px;
    align-items: flex-start;
    flex-direction: column;
  }

  #positionText {
    display: inline-block;
    margin-left: 0;
    margin-top: 6px;
  }

  .active-grader-badge,
  .series-text,
  #countsText {
    display: block;
    margin-top: 4px;
  }

  .workspace {
    display: flex;
    flex-direction: column;
    min-height: 0;
  }

  .viewer-column {
    min-width: 0;
  }

  .viewer-toolbar,
  .zoom-toolbar {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 8px;
    padding: 10px;
  }

  .zoom-help {
    flex-basis: 100%;
    font-size: 12px;
    line-height: 1.35;
  }

  .image-stage {
    flex: 0 0 auto;
    min-height: 0;
    justify-content: center;
    align-items: flex-start;
    touch-action: none;
  }

  .mobile-view-lock-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .mobile-view-lock-button.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
  }

  .annotation-toolbar {
    display: none;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    padding: 10px;
  }

  body.mobile-panel-tools.label-mode .annotation-toolbar {
    display: grid;
  }

  .annotation-toolbar .tool-button,
  .annotation-toolbar button {
    min-height: 44px;
    padding: 10px 8px;
  }

  .annotation-toolbar .layer-select,
  .annotation-toolbar #annotationClass,
  .annotation-toolbar .brush-size-label {
    grid-column: 1 / -1;
    width: 100%;
  }

  .brush-size-label {
    justify-content: space-between;
  }

  .brush-size-label input {
    flex: 1;
    width: auto;
  }

  .mobile-panel-tabs {
    position: sticky;
    bottom: 0;
    z-index: 45;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    background: #070b10;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .mobile-panel-tab {
    min-height: 48px;
    padding: 8px 4px;
    border-radius: 0;
    border-color: transparent;
    background: #0b1118;
    color: var(--muted);
    font-size: 13px;
  }

  .mobile-panel-tab.active {
    background: var(--primary);
    color: #fff;
  }

  .side-panel {
    width: 100%;
    max-height: 42vh;
    padding: 12px;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

  .side-panel > h3,
  .side-panel > .label-grid,
  .side-panel > .full-width,
  .side-panel > .text-label,
  .side-panel > .layer-manager,
  .side-panel > .status-card,
  .side-panel > .side-actions {
    display: none;
  }

  body.mobile-panel-label.label-mode .side-panel > h3,
  body.mobile-panel-label.label-mode .side-panel > .full-width,
  body.mobile-panel-text.label-mode .side-panel > .text-label,
  body.mobile-panel-layers.label-mode .side-panel > .layer-manager {
    display: block;
  }

  body.mobile-panel-label.label-mode .side-panel > .label-grid,
  body.mobile-panel-status.label-mode .side-panel > .status-card {
    display: flex;
  }

  body.mobile-panel-label.label-mode .side-panel > .label-grid {
    display: grid;
  }

  body.mobile-panel-status.label-mode .side-panel > .side-actions {
    display: grid;
  }

  .label-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .label-button {
    min-height: 52px;
    font-size: 20px;
  }

  .text-label {
    margin-top: 0;
  }

  #freeText {
    min-height: 180px;
  }

  .side-actions {
    gap: 8px;
  }

  .side-actions button {
    min-height: 48px;
  }

  .navigation {
    position: sticky;
    bottom: 0;
    z-index: 40;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    min-height: 0;
    padding: 10px;
  }

  .navigation button,
  .navigation label {
    width: 100%;
  }

  .propagation-controls {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }

  body.cfp-mode .annotation-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.cfp-mode.label-mode .mobile-cfp-bar {
    position: sticky;
    bottom: 0;
    z-index: 55;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
    padding: 8px;
    background: #070b10;
    border-top: 1px solid var(--border);
  }

  body.cfp-mode.label-mode .mobile-cfp-bar button {
    min-height: 46px;
    padding: 8px 4px;
    font-size: 13px;
  }

  body.binary-mode.label-mode .image-canvas-wrap {
    border-radius: 0;
    overflow: visible;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
    touch-action: none;
    transition: transform 140ms ease;
  }

  body.binary-mode.label-mode .topbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  body.binary-mode.label-mode .topbar h1,
  body.binary-mode.label-mode .subtitle,
  body.binary-mode.label-mode #signedInUser,
  body.binary-mode.label-mode #logoutButton,
  body.binary-mode.label-mode #adminUsersButton,
  body.binary-mode.label-mode #adminExportButton,
  body.binary-mode.label-mode #diagnosticsButton,
  body.binary-mode.label-mode #projectInstructionsButton,
  body.binary-mode.label-mode #uploadInstructionsButton,
  body.binary-mode.label-mode #removeInstructionsButton,
  body.binary-mode.label-mode #exportButton,
  body.binary-mode.label-mode #exportJsonButton,
  body.binary-mode.label-mode #exportMlButton {
    display: none !important;
  }

  body.binary-mode.label-mode .top-project-name {
    display: block;
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  body.binary-mode.label-mode .top-actions {
    display: flex;
    overflow: visible;
    padding: 0;
  }

  body.binary-mode.label-mode #projectOnlyActions {
    justify-content: flex-end;
  }

  body.binary-mode.label-mode #projectButton {
    display: inline-flex !important;
  }

  body.binary-mode.label-mode .progress-panel,
  body.binary-mode.label-mode .viewer-toolbar,
  body.binary-mode.label-mode .zoom-toolbar,
  body.binary-mode.label-mode .side-panel,
  body.binary-mode.label-mode .navigation,
  body.binary-mode.label-mode .mobile-cfp-bar {
    display: none !important;
  }

  body.binary-mode.label-mode .label-view:not(.hidden) {
    min-height: 0;
  }

  body.binary-mode.label-mode .workspace {
    display: block;
    flex: 0 0 auto;
    min-height: 0;
  }

  body.binary-mode.label-mode .viewer-column {
    background: var(--bg);
    display: block;
  }

  body.binary-mode.label-mode .image-stage {
    margin: 0;
    background: #000;
    min-height: 0;
    overflow: visible !important;
    width: 100%;
  }

  body.binary-mode.label-mode .mobile-binary-bar {
    position: sticky;
    bottom: 0;
    z-index: 60;
    display: grid;
    grid-template-columns: 1fr 72px 1fr;
    gap: 10px;
    padding: 10px;
    background: #070b10;
    border-top: 1px solid var(--border);
  }

  .binary-decision-button,
  .binary-back-button {
    min-height: 58px;
    border-radius: 999px;
    font-size: 18px;
    font-weight: 900;
  }

  .binary-no-button {
    color: #ff6b6b;
    border-color: rgba(255, 107, 107, 0.55);
    background: rgba(255, 107, 107, 0.12);
  }

  .binary-yes-button {
    color: #3fb950;
    border-color: rgba(63, 185, 80, 0.55);
    background: rgba(63, 185, 80, 0.12);
  }

  .binary-back-button {
    width: 58px;
    min-height: 58px;
    padding: 0;
    color: var(--text);
    border: 1px solid var(--border);
    background: #101820;
    font-size: 30px;
    line-height: 1;
  }
}

@media (max-width: 480px) {
  .topbar {
    padding: 10px;
  }

  .brand-lockup h1 {
    font-size: 22px;
  }

  .brand p,
  .home-panel p,
  .project-item-details,
  .admin-user-info span {
    font-size: 14px;
  }

  .home-panel h2,
  .project-panel h2 {
    font-size: 24px;
  }

  .annotation-toolbar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mobile-panel-tab {
    font-size: 12px;
  }

  .navigation {
    grid-template-columns: 1fr;
  }

}


/* ===== V0.15 Google Drive ===== */
.google-drive-project-source {
  display: grid;
  gap: 12px;
  margin: 10px 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255,255,255,0.02);
}

.drive-status-row,
.drive-folder-toolbar,
.drive-folder-row,
.drive-folder-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.drive-status-row {
  flex-wrap: wrap;
}

.drive-folder-toolbar {
  margin-bottom: 8px;
}

#googleDriveCurrentPath {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.drive-folder-list {
  display: grid;
  gap: 5px;
  max-height: 290px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px;
}

.drive-folder-row {
  justify-content: space-between;
  padding: 7px 8px;
  border-radius: 6px;
}

.drive-folder-row:hover {
  background: rgba(255,255,255,0.05);
}

.current-folder-row {
  cursor: pointer;
  border-bottom: 1px solid var(--border);
}

.selected-drive-folder {
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}


/* ===== V0.16 Admin Export Center ===== */
.admin-export-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

#adminExportSummary {
  margin: 8px 0 12px;
}

#adminExportDownloadButton {
  width: fit-content;
}

@media (max-width: 760px) {
  .admin-export-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Grader introduction ===== */
.guide-page {
  background: #05080c;
  color: var(--text);
}

.guide-shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.guide-nav {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-bottom: 18px;
}

.guide-nav a {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  background: #101721;
}

.guide-hero,
.guide-section {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0b1118;
  padding: 24px;
  margin-bottom: 18px;
}

.guide-hero {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(360px, 1.1fr);
  gap: 24px;
  align-items: center;
}

.guide-hero h1,
.guide-section h2 {
  margin-top: 0;
}

.guide-hero p,
.guide-section p,
.guide-section li,
.guide-section figcaption {
  color: var(--muted);
  line-height: 1.6;
}

.guide-hero img,
.mode-guide img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #05080c;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.guide-grid article {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  background: rgba(255,255,255,0.02);
}

.guide-grid h3,
.mode-guide h3 {
  margin-top: 0;
}

.mode-guide {
  display: grid;
  grid-template-columns: minmax(320px, 0.9fr) minmax(360px, 1.1fr);
  gap: 24px;
  align-items: start;
}

.mode-guide figure {
  margin: 0;
}

.mode-guide figcaption {
  margin-top: 8px;
  font-size: 13px;
}

.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.shortcut-grid span {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.02);
  color: var(--muted);
}

kbd {
  display: inline-block;
  min-width: 22px;
  padding: 2px 6px;
  margin-right: 4px;
  border: 1px solid #39465a;
  border-radius: 5px;
  background: #151d29;
  color: var(--text);
  font-weight: 700;
  text-align: center;
}

@media (max-width: 900px) {
  .guide-hero,
  .mode-guide,
  .guide-grid,
  .shortcut-grid {
    grid-template-columns: 1fr;
  }
}