/* ==========================================================================
   Workspace - the grading surfaces. Sections share the workspace plane and
   are separated by rules and space; only genuinely independent objects (the
   report, the inspector, a modal) are lifted onto their own surface.
   ========================================================================== */

/* ==========================================================================
   Chart - a precision instrument
   ========================================================================== */
.chart {
  position: relative;
  width: 100%;
}

.chart__svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
  touch-action: pan-y;
  font-family: var(--font-sans);
  user-select: none;
  -webkit-user-select: none;
}

.chart__grid-line {
  stroke: var(--c-line-soft);
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.chart__axis-line,
.chart__axis-tick {
  stroke: var(--c-ink-200);
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.chart__tick {
  fill: var(--c-ink-400);
  font-size: 10px;
  font-weight: var(--fw-medium);
  font-feature-settings: var(--num);
}

.chart__tick--strong {
  fill: var(--c-ink-600);
}

.chart__axis-title {
  fill: var(--c-ink-400);
  font-size: 10px;
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
}

.chart__band {
  fill: transparent;
  transition: fill var(--dur-2) var(--ease-out);
}

.chart__band[data-odd="true"] {
  fill: rgba(14, 18, 27, 0.022);
}

.chart__band[data-active="true"] {
  fill: var(--c-accent-wash);
}

.chart__band-label {
  font-size: 11px;
  font-weight: var(--fw-semibold);
  fill: var(--c-ink-400);
  text-anchor: middle;
  pointer-events: none;
  transition: fill var(--dur-2) var(--ease-out);
}

.chart__band-label[data-active="true"] {
  fill: var(--c-accent);
}

.chart__hover {
  fill: rgba(14, 18, 27, 0.05);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--dur-1) var(--ease-out);
}

.chart__hover[data-visible="true"] {
  opacity: 1;
}

.chart__bar {
  transition: fill var(--dur-2) var(--ease-out), opacity var(--dur-2) var(--ease-out);
}

.chart__bar--affected {
  fill: var(--c-accent);
}

.chart__flash.is-animated {
  animation: chart-flash 1400ms var(--ease-in-out) 160ms both;
}

@keyframes chart-flash {
  0% {
    opacity: 1;
  }
  55% {
    opacity: 0.9;
  }
  100% {
    opacity: 0;
  }
}

/* --- Cutoff handles --------------------------------------------------- */
.chart__cut {
  cursor: ew-resize;
  outline: none;
  touch-action: none;
}

.chart__cut-hit {
  stroke: transparent;
  stroke-width: 12;
}

.chart__cutoff {
  stroke: var(--c-accent);
  stroke-width: 1.25;
  shape-rendering: crispEdges;
  transition: stroke-width var(--dur-1) var(--ease-out), stroke var(--dur-1) var(--ease-out);
}

.chart__cut-foot {
  fill: var(--c-accent);
}

.chart__cutoff-grip {
  fill: var(--c-ink-900);
  stroke: rgba(255, 255, 255, 0.0);
  filter: drop-shadow(0 1px 1.5px rgba(14, 18, 27, 0.25));
  transition: fill var(--dur-1) var(--ease-out);
}

.chart__cutoff-value {
  font-size: 11px;
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  fill: var(--c-white);
  text-anchor: middle;
  pointer-events: none;
}

.chart__cutoff-focus {
  fill: none;
  stroke: var(--c-focus);
  stroke-width: 2;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-1) var(--ease-out);
}

/* The handle is ink at rest; it turns amber when grabbed or once moved. */
.chart__cut:hover .chart__cutoff-grip,
.chart__cut[data-dragging="true"] .chart__cutoff-grip {
  fill: var(--c-accent);
}

.chart__cut:hover .chart__cutoff,
.chart__cut:focus-visible .chart__cutoff,
.chart__cut[data-dragging="true"] .chart__cutoff {
  stroke-width: 2;
  stroke: var(--c-accent-strong);
}

.chart__cut:hover .chart__cut-foot,
.chart__cut[data-dragging="true"] .chart__cut-foot {
  r: 3.5;
}

.chart__cut:focus-visible .chart__cutoff-focus {
  opacity: 1;
}

.chart[data-dragging="true"],
.chart[data-dragging="true"] * {
  cursor: ew-resize !important;
}

.chart__cutoff--report {
  stroke-width: 1;
}

.chart__cutoff-label {
  font-size: 10px;
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  fill: var(--c-accent-strong);
  text-anchor: middle;
  paint-order: stroke;
  stroke: var(--c-surface);
  stroke-width: 3px;
  stroke-linejoin: round;
}

/* --- Descriptive markers ---------------------------------------------- */
.chart__stat-line {
  stroke-width: 1;
  shape-rendering: crispEdges;
}

.chart__stat-line--median {
  stroke: var(--c-ink-800);
}

.chart__stat-line--mean {
  stroke: var(--c-ink-400);
  stroke-dasharray: 3 3;
}

.chart__stat-line--quiet {
  stroke: var(--c-ink-300);
  stroke-dasharray: 2 3;
  pointer-events: none;
}

.chart__stat-label {
  font-size: 10px;
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  letter-spacing: 0.02em;
  paint-order: stroke;
  stroke: var(--c-surface);
  stroke-width: 3px;
  stroke-linejoin: round;
}

.chart__stat-label--median {
  fill: var(--c-ink-900);
}

.chart__stat-label--mean {
  fill: var(--c-ink-500);
}

.chart__empty {
  fill: var(--c-ink-400);
  font-size: 12px;
  text-anchor: middle;
}

/* --- Tooltip ----------------------------------------------------------- */
.chart__tooltip {
  position: absolute;
  z-index: 5;
  /*
   * Hidden means no box at all, not a transparent box: a tooltip keeps the
   * inline left/top of its last hover, and an invisible-but-rendered box at
   * a stale desktop position would push a narrowed viewport sideways.
   */
  display: none;
  min-width: 120px;
  padding: 7px 10px 8px;
  border-radius: var(--r-md);
  background: var(--c-ink-900);
  color: var(--c-ink-300);
  font-size: var(--fs-2xs);
  line-height: 1.55;
  box-shadow: var(--sh-lg);
  pointer-events: none;
  transform: translate(-50%, -100%);
}

.chart__tooltip[data-visible="true"] {
  display: block;
}

.chart__tooltip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-bottom: 5px;
  margin-bottom: 4px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chart__tooltip-head b {
  color: var(--c-white);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  margin-right: 2px;
}

.chart__tooltip-grade {
  display: inline-grid;
  place-items: center;
  min-width: 22px;
  height: 17px;
  padding: 0 4px;
  border-radius: var(--r-xs);
  background: rgba(255, 255, 255, 0.12);
  color: var(--c-white);
  font-size: 10px;
  font-weight: var(--fw-semibold);
}

.chart__tooltip-row {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
}

.chart__tooltip-row span:last-child {
  color: var(--c-white);
  font-weight: var(--fw-medium);
  font-feature-settings: var(--num);
}

/* --- Legend ------------------------------------------------------------ */
.chart-legend {
  display: flex;
  align-items: center;
  gap: 6px var(--sp-4);
  flex-wrap: wrap;
  font-size: var(--fs-2xs);
  color: var(--c-ink-500);
}

.chart-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.chart-legend__swatch {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.chart-legend__swatch--ramp {
  width: 24px;
  height: 6px;
  background: linear-gradient(90deg, var(--grade-1), var(--grade-3) 35%, var(--grade-5) 65%, var(--grade-8));
}

.chart-legend__swatch--line {
  width: 14px;
  height: 0;
  border-top: 1.5px solid var(--c-ink-500);
  border-radius: 0;
}

.chart-legend__swatch--dashed {
  border-top-style: dashed;
}

.chart-legend__swatch--cut {
  width: 8px;
  height: 11px;
  border-radius: 2px;
  background: var(--c-ink-900);
}

/* ==========================================================================
   Import - upload mode, then data-health mode on the same page
   ========================================================================== */
.stage--import[data-active="true"] {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  grid-template-areas:
    "head drop"
    "spec drop"
    "status status"
    "draft draft"
    "error error"
    "rules rules"
    "report report"
    "picker picker"
    "session session";
  column-gap: var(--sp-12);
  align-items: start;
}

.import__head {
  grid-area: head;
  margin: var(--sp-8) 0 var(--sp-6);
}

.import__head .stage__title {
  font-size: var(--fs-4xl);
  letter-spacing: -0.04em;
  line-height: 1;
}

.import__head .stage__desc {
  margin-top: var(--sp-4);
  font-size: var(--fs-md);
  max-width: 40ch;
  color: var(--c-ink-500);
}

/* Onboarding's children join the page grid directly. */
.import__onboarding {
  display: contents;
}

.import__spec {
  grid-area: spec;
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
}

.dropzone {
  grid-area: drop;
}

.import__status {
  grid-area: status;
}

.import__draft {
  grid-area: draft;
}

.import__error {
  grid-area: error;
}

.import-rules {
  grid-area: rules;
}

.import__report {
  grid-area: report;
}

.import__picker {
  grid-area: picker;
}

.session-bar {
  grid-area: session;
}

#stage-import > :not(.stage__head):not(:empty) {
  margin-top: var(--sp-6);
}

#stage-import > .import__onboarding > .dropzone {
  margin-top: var(--sp-6);
}

/* Once a file is in, the page becomes a data-health workspace. */
.stage--import[data-active="true"]:has(#importOnboarding[hidden]) {
  grid-template-columns: minmax(0, 1fr) 340px;
  grid-template-areas:
    "head head"
    "status status"
    "draft draft"
    "error error"
    "report picker"
    "session session";
  column-gap: var(--sp-8);
}

.stage--import:has(#importOnboarding[hidden]) .import__head {
  margin: 0 0 var(--sp-2);
}

.stage--import:has(#importOnboarding[hidden]) .import__head .stage__title {
  font-size: var(--fs-xl);
  letter-spacing: -0.028em;
}

.stage--import:has(#importOnboarding[hidden]) .import__head .stage__desc {
  font-size: var(--fs-sm);
  margin-top: 6px;
}

#importOnboarding[hidden] ~ .import-rules {
  display: none;
}

/* --- The three-step story and the file specification ------------------- */
.flow {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-line);
}

.flow__step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.flow__num {
  font-size: var(--fs-2xs);
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  color: var(--c-ink-400);
  line-height: 20px;
}

.flow__step:first-child .flow__num {
  color: var(--c-blue);
}

.flow__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  line-height: 20px;
}

.flow__text {
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
  line-height: var(--lh-snug);
}

.spec {
  display: flex;
  flex-direction: column;
}

.spec__row {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  align-items: baseline;
  gap: var(--sp-3);
  padding: 7px 0;
  border-bottom: 1px dashed var(--c-line);
  font-size: var(--fs-xs);
}

.spec__row dt code {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-ink-900);
}

.spec__row dd {
  color: var(--c-ink-500);
}

.import__links {
  display: flex;
  gap: 2px;
  margin-left: -10px;
}

/* --- Upload surface --------------------------------------------------- */
.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-5);
  min-height: 420px;
  padding: var(--sp-10) var(--sp-8);
  text-align: center;
  border: 1px solid var(--c-line);
  border-radius: var(--r-2xl);
  background: var(--c-surface-2);
  overflow: hidden;
  transition: border-color var(--dur-2) var(--ease-out), background-color var(--dur-2) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out);
}

/* A plotted grid fading from the centre: the bed of an instrument. */
.dropzone::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: center;
  mask-image: radial-gradient(55% 60% at 50% 48%, #000 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(55% 60% at 50% 48%, #000 0%, transparent 100%);
  opacity: 0.7;
  pointer-events: none;
  transition: opacity var(--dur-2) var(--ease-out);
}

/* A faint distribution silhouette: what this file is about to become. */
.dropzone::after {
  content: "";
  position: absolute;
  left: 12%;
  right: 12%;
  bottom: 0;
  height: 70px;
  background:
    linear-gradient(90deg,
      transparent 0 6%, var(--c-ink-150) 6% 8%, transparent 8% 14%, var(--c-ink-150) 14% 16%,
      transparent 16% 22%, var(--c-ink-200) 22% 24%, transparent 24% 30%, var(--c-ink-200) 30% 32%,
      transparent 32% 38%, var(--c-ink-200) 38% 40%, transparent 40% 46%, var(--c-ink-300) 46% 48%,
      transparent 48% 54%, var(--c-ink-200) 54% 56%, transparent 56% 62%, var(--c-ink-200) 62% 64%,
      transparent 64% 70%, var(--c-ink-150) 70% 72%, transparent 72% 78%, var(--c-ink-150) 78% 80%,
      transparent 80%);
  mask-image: linear-gradient(to top, #000, transparent);
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0, 0, 0, 0.2) 100%);
  clip-path: polygon(0 100%, 6% 70%, 16% 55%, 24% 40%, 32% 25%, 40% 12%, 48% 0, 56% 15%, 64% 30%, 72% 50%, 80% 72%, 100% 100%);
  opacity: 0.8;
  pointer-events: none;
}

.dropzone > * {
  position: relative;
}

.dropzone:hover {
  border-color: var(--c-line-strong);
}

.dropzone[data-dragging="true"] {
  border-color: var(--c-blue);
  background: var(--c-blue-soft);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--c-blue) 12%, transparent);
}

.dropzone[data-dragging="true"]::before {
  opacity: 0.3;
}

.dropzone[data-dragging="true"] .dropzone__icon {
  color: var(--c-white);
  background: var(--c-blue);
  border-color: var(--c-blue);
  transform: translateY(-3px);
}

.dropzone__icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--r-xl);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  color: var(--c-ink-900);
  box-shadow: 0 1px 2px rgba(14, 18, 27, 0.06), 0 10px 24px -14px rgba(14, 18, 27, 0.4);
  transition: background-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out),
    transform var(--dur-2) var(--ease-out);
}

.dropzone__title {
  font-size: 1.25rem;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.02em;
  color: var(--c-ink-900);
}

.dropzone__sub {
  margin-top: 6px;
  font-size: var(--fs-sm);
  color: var(--c-ink-500);
}

.dropzone__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  flex-wrap: wrap;
}

.dropzone__formats {
  display: flex;
  gap: 6px;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
}

.dropzone__formats .badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  background: var(--c-surface);
}

.dropzone__formats-note {
  flex-basis: 100%;
  margin-top: 2px;
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
}

.import-rules {
  background: transparent;
}

.import-rules > .disclosure__summary {
  color: var(--c-ink-600);
}

.import-rules__body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-8);
  padding: var(--sp-5);
}

.import-rules__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  margin-bottom: var(--sp-3);
}

#headerVariants code {
  font-size: 11px;
  padding: 1px 5px;
  border-radius: var(--r-sm);
  background: var(--c-surface);
  box-shadow: inset 0 0 0 1px var(--c-line);
  color: var(--c-ink-700);
}

/* Session options: one quiet line at the foot of the page. */
.session-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3) var(--sp-6);
  flex-wrap: wrap;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line-soft);
}

/* --- Data health mode -------------------------------------------------- */
.import__report > .panel {
  border: 0;
  border-radius: 0;
  box-shadow: none;
  background: transparent;
}

.import__report .panel__head {
  min-height: 0;
  padding: 0 0 var(--sp-3);
  border-bottom: 1px solid var(--c-line);
}

.import__report .panel__title {
  font-size: var(--fs-md);
}

.import__report .metric__note {
  display: none;
}

.import__report .metric {
  padding-block: 14px;
}

.report-body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
  padding: var(--sp-4) 0 0 !important;
}

/* The validation readout arrives line by line, like a system reporting in. */
.metric-row .metric {
  animation: readout-in var(--dur-3) var(--ease-out) both;
}

.metric-row .metric:nth-child(2) { animation-delay: 40ms; }
.metric-row .metric:nth-child(3) { animation-delay: 80ms; }
.metric-row .metric:nth-child(4) { animation-delay: 120ms; }
.metric-row .metric:nth-child(5) { animation-delay: 160ms; }
.metric-row .metric:nth-child(6) { animation-delay: 200ms; }

@keyframes readout-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.report-actions {
  gap: var(--sp-1);
  margin-left: -10px;
}

.report-actions .btn--secondary {
  margin-left: 10px;
  margin-right: var(--sp-1);
}

.decision {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--sp-3) var(--sp-4);
  padding: 14px var(--sp-4);
  border: 1px solid var(--c-info-line);
  border-radius: var(--r-lg);
  background: var(--c-info-soft);
}

.decision__icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: var(--r-md);
  background: var(--c-surface);
  color: var(--c-info);
  box-shadow: inset 0 0 0 1px var(--c-info-line);
  align-self: start;
}

.decision__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.decision__hint {
  margin-top: 2px;
  font-size: var(--fs-xs);
  color: var(--c-ink-600);
  line-height: var(--lh-snug);
}

.decision__field {
  grid-column: 2;
}

.decision__field .field__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
}

/* Course picker: a selection list in the side column. */
.import__picker > .panel {
  position: sticky;
  top: calc(var(--bar-h) + var(--sp-4));
  background: var(--c-surface-2);
  box-shadow: none;
}

.import__picker .panel__head {
  min-height: 0;
  padding: 14px var(--sp-4) var(--sp-3);
}

.import__picker .panel__body {
  padding: var(--sp-2);
}

.import__picker .course-list {
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

.import__picker .course-card {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  padding: 10px var(--sp-3);
}

.import__picker .course-card:hover {
  background: var(--c-surface);
  border-color: var(--c-line);
}

.import__picker .course-card[data-selected="true"] {
  background: var(--c-surface);
  border-color: var(--c-blue);
  box-shadow: inset 0 0 0 1px var(--c-blue);
}

.import__picker .course-card[data-selected="true"]::after {
  display: none;
}

/* ==========================================================================
   Analyse - one analytical canvas with an insight rail
   ========================================================================== */
.canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 312px;
  margin-inline: calc(var(--sp-8) * -1);
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
}

.canvas__main {
  min-width: 0;
  padding: var(--sp-5) var(--sp-6) var(--sp-5) var(--sp-8);
}

.canvas__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-2) var(--sp-5);
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}

.canvas__strip {
  margin-top: var(--sp-5);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line-soft);
}

.canvas__strip-head {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.canvas__strip-head .section-hint {
  margin: 0;
}

.insight {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--c-line);
  background: var(--c-surface-2);
  min-width: 0;
}

.insight__block {
  padding: var(--sp-5);
}

.insight__block + .insight__block {
  border-top: 1px solid var(--c-line-soft);
}

.insight__title {
  margin-bottom: var(--sp-3);
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-400);
}

/* Readout: instrument figures without boxes. */
.stats--readout {
  --stat-cols: 2;
  gap: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.stats--readout .stat {
  padding: 10px 0 12px;
  background: transparent;
  border-bottom: 1px solid var(--c-line-soft);
}

.stats--readout .stat:nth-child(odd) {
  padding-right: var(--sp-3);
}

.stats--readout .stat:nth-child(even) {
  padding-left: var(--sp-3);
  border-left: 1px solid var(--c-line-soft);
}

.stats--readout .stat:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.stats--readout .stat__label {
  font-size: var(--fs-2xs);
  color: var(--c-ink-500);
}

.stats--readout .stat__value {
  margin-top: 4px;
  font-size: 1.5rem;
}

.stats--readout .stat__value--text {
  font-size: 1.125rem;
}

.stats--readout .stat__note {
  display: none;
}

/* --- Class spread ------------------------------------------------------ */
.spread {
  position: relative;
  padding-top: 2px;
}

.spread__track {
  position: relative;
  height: 28px;
  margin-inline: 4px;
  background: linear-gradient(var(--c-line), var(--c-line)) center / 100% 1px no-repeat;
}

.spread__whisker {
  position: absolute;
  top: 50%;
  height: 1px;
  background: var(--c-ink-500);
}

.spread__cap {
  position: absolute;
  top: 50%;
  width: 1px;
  height: 11px;
  margin-top: -5.5px;
  background: var(--c-ink-500);
}

.spread__box {
  position: absolute;
  top: 4px;
  bottom: 4px;
  border-radius: 3px;
  background: color-mix(in srgb, var(--grade-3) 18%, var(--c-surface));
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--grade-3) 55%, transparent);
}

.spread__median {
  position: absolute;
  top: 2px;
  bottom: 2px;
  width: 2px;
  margin-left: -1px;
  border-radius: 1px;
  background: var(--c-ink-900);
}

.spread__mean {
  position: absolute;
  top: 50%;
  width: 7px;
  height: 7px;
  margin: -3.5px 0 0 -3.5px;
  border-radius: 50%;
  background: var(--c-surface);
  box-shadow: inset 0 0 0 1.5px var(--c-ink-500);
}

.spread__groups {
  position: relative;
  height: 5px;
  margin: 8px 4px 0;
}

.spread__group {
  position: absolute;
  top: 0;
  height: 5px;
  border-radius: 2px;
  background: var(--grade-5);
}

.spread__axis {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  font-size: 10px;
  color: var(--c-ink-400);
  font-feature-settings: var(--num);
}

.facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

.facts__item:last-child {
  grid-column: 1 / -1;
}

.facts__item dt {
  font-size: var(--fs-2xs);
  color: var(--c-ink-500);
}

.facts__item dd {
  margin-top: 1px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  font-feature-settings: var(--num);
  overflow-wrap: anywhere;
}

.spread__note {
  margin-top: var(--sp-3);
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
  line-height: var(--lh-snug);
}

/* --- Share bar and grade grid ----------------------------------------- */
.sharebar {
  display: flex;
  gap: 2px;
  height: 20px;
  border-radius: var(--r-sm);
  overflow: hidden;
}

.sharebar--thin {
  height: 6px;
  border-radius: 2px;
}

.sharebar__seg {
  display: grid;
  place-items: center;
  min-width: 3px;
  font-size: 10px;
  font-weight: var(--fw-semibold);
  color: var(--c-white);
  overflow: hidden;
  white-space: nowrap;
}

.sharebar__seg[data-tone="light"] {
  color: var(--c-ink-900);
}

.gradegrid {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  margin-top: var(--sp-3);
}

.gradegrid__cell {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 0;
}

.gradegrid__cell .grade-chip {
  min-width: 24px;
}

.gradegrid__n {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.gradegrid__pct {
  font-size: 10px;
  color: var(--c-ink-400);
}

.gradegrid__cell[data-empty="true"] .gradegrid__n {
  color: var(--c-ink-300);
}

/* --- Student ledger ---------------------------------------------------- */
.ledger {
  margin-top: var(--sp-8);
}

.ledger__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-3) var(--sp-5);
  flex-wrap: wrap;
  margin-bottom: var(--sp-3);
}

.ledger__body .table-wrap {
  border-radius: var(--r-lg);
}

.ledger__body .table-foot {
  margin-top: var(--sp-2);
}

.ledger__body .empty {
  border: 1px dashed var(--c-line);
  border-radius: var(--r-lg);
}

/* ==========================================================================
   Configure - the grading instrument
   ========================================================================== */
.instrument {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 352px;
  border-top: 1px solid var(--c-line);
  margin-inline: calc(var(--sp-8) * -1);
  margin-bottom: calc(var(--sp-12) * -1);
}

.instrument__main {
  min-width: 0;
  padding: var(--sp-5) var(--sp-6) var(--sp-8) var(--sp-8);
}

.instrument__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-2) var(--sp-5);
  flex-wrap: wrap;
  margin-bottom: var(--sp-2);
}

.instrument__chart {
  margin-top: var(--sp-2);
}

/* --- Grade scale: every band as one column of a segmented control ----- */
.scale {
  container-type: inline-size;
  margin-top: var(--sp-5);
}

.scale__head {
  display: flex;
  align-items: baseline;
  gap: var(--sp-3);
  margin-bottom: var(--sp-3);
}

.scale__hint {
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
}

.scale__head .badge {
  margin-left: auto;
}

.bands {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-surface);
  overflow: hidden;
}

.band-head {
  display: none;
}

.band-row {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "grade range"
    "stats stats"
    "cutoff cutoff";
  align-items: center;
  gap: 10px 6px;
  min-width: 0;
  padding: 12px 10px;
  transition: background-color var(--dur-1) var(--ease-out);
}

.band-row + .band-row {
  border-left: 1px solid var(--c-line-soft);
}

.band-row:hover,
.band-row[data-active="true"] {
  background: var(--c-surface-2);
}

/* A changed band is marked at its top edge in amber, not flooded. */
.band-row[data-edited="true"]::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: var(--c-accent);
}

.band-row__grade {
  grid-area: grade;
  display: flex;
}

.band-row__range-cell {
  grid-area: range;
  min-width: 0;
  text-align: right;
}

.band-row__range {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  font-feature-settings: var(--num);
  white-space: nowrap;
}

.band-row[data-edited="true"] .band-row__range {
  color: var(--c-accent-strong);
}

.band-row__note {
  display: none;
}

.band-row__stats {
  grid-area: stats;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  grid-template-areas:
    "bar bar bar"
    "count pct delta";
  align-items: baseline;
  column-gap: 6px;
  row-gap: 6px;
  min-width: 0;
}

.band-bar {
  grid-area: bar;
  position: relative;
  height: 4px;
  border-radius: 2px;
  background: var(--c-ink-100);
  overflow: hidden;
}

.band-bar__fill {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  border-radius: 2px;
  background: var(--grade-1);
  transition: width var(--dur-3) var(--ease-out);
}

.band-count {
  grid-area: count;
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  font-feature-settings: var(--num);
  line-height: 1;
}

.band-count[data-bump="true"] {
  animation: count-bump 900ms var(--ease-out) both;
}

@keyframes count-bump {
  0% {
    color: var(--c-accent);
  }
  100% {
    color: var(--c-ink-900);
  }
}

.band-pct {
  grid-area: pct;
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
  font-feature-settings: var(--num);
}

.band-delta {
  grid-area: delta;
  min-width: 0;
  font-size: var(--fs-2xs);
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  color: var(--c-ink-300);
}

.band-delta:empty {
  display: none;
}

.band-delta[data-dir="up"] {
  color: var(--c-success);
}

.band-delta[data-dir="down"] {
  color: var(--c-danger);
}

.band-row__cutoff {
  grid-area: cutoff;
  min-width: 0;
}

/* --- Cutoff stepper: [ − 80 + ] ---------------------------------------- */
.cutoff {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 24px;
  align-items: stretch;
  width: 100%;
  height: 30px;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-md);
  background: var(--c-surface);
  transition: border-color var(--dur-1) var(--ease-out), box-shadow var(--dur-1) var(--ease-out);
}

.cutoff:hover {
  border-color: var(--c-ink-300);
}

.cutoff:focus-within {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c-accent) 18%, transparent);
}

.cutoff__input {
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0;
  border: 0;
  border-left: 1px solid var(--c-line-soft);
  border-right: 1px solid var(--c-line-soft);
  background: transparent;
  text-align: center;
  font-feature-settings: var(--num);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  color: var(--c-ink-900);
}

.cutoff__input:focus {
  outline: none;
  background: var(--c-accent-soft);
}

.cutoff__input[data-edited="true"] {
  color: var(--c-accent-strong);
}

.cutoff__step {
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--c-ink-500);
  transition: background-color var(--dur-1) var(--ease-out), color var(--dur-1) var(--ease-out);
}

.cutoff__step:first-child {
  border-radius: var(--r-md) 0 0 var(--r-md);
}

.cutoff__step:nth-child(3) {
  border-radius: 0 var(--r-md) var(--r-md) 0;
}

.cutoff__step:hover:not(:disabled) {
  background: var(--c-surface-3);
  color: var(--c-ink-900);
}

.cutoff__step:active:not(:disabled) {
  background: var(--c-ink-100);
}

.cutoff__step:disabled {
  color: var(--c-ink-200);
  cursor: not-allowed;
}

.cutoff__input::-webkit-outer-spin-button,
.cutoff__input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.cutoff__input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.cutoff__locked {
  display: grid;
  place-items: center;
  width: 100%;
  height: 30px;
  border: 1px dashed var(--c-line);
  border-radius: var(--r-md);
  font-size: var(--fs-2xs);
  font-weight: var(--fw-medium);
  color: var(--c-ink-400);
}

/* Four columns when the workspace is narrower; a dense list on phones. */
@container (max-width: 760px) {
  .bands {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .band-row:nth-child(n + 6) {
    border-top: 1px solid var(--c-line-soft);
  }

  .band-row:nth-child(6) {
    border-left: 0;
  }
}

@container (max-width: 440px) {
  .bands {
    grid-template-columns: minmax(0, 1fr);
  }

  .band-row {
    grid-template-columns: 30px 58px minmax(0, 1fr) 96px;
    grid-template-areas: "grade range stats cutoff";
    padding: 8px 12px;
    border-left: 0 !important;
    border-top: 1px solid var(--c-line-soft);
  }

  .band-row:nth-child(2) {
    border-top: 0;
  }

  .band-row__range-cell {
    text-align: left;
  }

  .band-row__stats {
    grid-template-columns: minmax(0, 1fr) auto auto;
    grid-template-areas: "bar count delta";
    align-items: center;
  }

  .band-count {
    font-size: var(--fs-sm);
  }

  .band-pct {
    display: none;
  }

  .band-row[data-edited="true"]::before {
    right: auto;
    bottom: 8px;
    top: 8px;
    width: 2px;
    height: auto;
  }
}

/* --- Suggested cutoffs: a single secondary strip ----------------------- */
.suggest-bar {
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--c-line-soft);
}

.suggest-bar > .section-title {
  margin-bottom: var(--sp-3);
}

.suggest {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.suggest__cuts {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.suggest__cut {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 8px 0 3px;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: var(--c-surface);
}

.suggest__cut .grade-chip {
  min-width: 24px;
  height: 18px;
  font-size: 10px;
}

.suggest__value {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  color: var(--c-ink-400);
}

.suggest__cut[data-differs="true"] .suggest__value {
  color: var(--c-ink-900);
}

.suggest__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.suggest__impact {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  flex: 1 1 220px;
  font-size: var(--fs-xs);
  color: var(--c-ink-600);
  line-height: var(--lh-snug);
}

.suggest__impact > span:first-child {
  display: inline-flex;
  margin-top: 1px;
  color: var(--c-ink-400);
}

.suggest__impact[data-tone="warning"] > span:first-child {
  color: var(--c-warning);
}

.suggest__impact b {
  color: var(--c-ink-900);
  font-weight: var(--fw-semibold);
}

.suggest__method {
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
  line-height: var(--lh-snug);
  max-width: 96ch;
}

/* --- Inspector: level 2, persistent beside the instrument -------------- */
.inspector {
  position: relative;
  min-width: 0;
  border-left: 1px solid var(--c-line);
  background: var(--c-surface-2);
  border-radius: 0 0 var(--r-2xl) 0;
}

.inspector__section {
  padding: var(--sp-5) var(--sp-5) var(--sp-6);
}

.inspector__section + .inspector__section {
  border-top: 1px solid var(--c-line);
}

.inspector__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.inspector__title {
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-500);
}

.inspector__meta {
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.inspector__head .cluster {
  gap: 0;
  margin-right: -8px;
}

/* --- Impact ------------------------------------------------------------ */
.impact {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.impact__banner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--sp-1) var(--sp-4);
  animation: rise-in var(--dur-2) var(--ease-out) both;
}

.impact__banner[data-state="clean"] {
  grid-template-columns: auto minmax(0, 1fr);
  padding: var(--sp-4);
  border: 1px dashed var(--c-line-strong);
  border-radius: var(--r-lg);
}

.impact__mark {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--c-surface);
  box-shadow: inset 0 0 0 1px var(--c-line-strong);
  color: var(--c-ink-500);
}

.impact__figure {
  font-size: 3.25rem;
  font-weight: var(--fw-semibold);
  line-height: 0.9;
  letter-spacing: -0.045em;
  font-feature-settings: var(--num);
  color: var(--c-ink-900);
}

.impact__banner[data-state="changed"] .impact__figure {
  color: var(--c-accent-strong);
}

.impact__figure[data-bump="true"] {
  animation: figure-in var(--dur-3) var(--ease-out) both;
}

@keyframes figure-in {
  from {
    opacity: 0.2;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.impact__lead {
  min-width: 0;
}

.impact__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.impact__caption {
  margin-top: 2px;
  font-size: var(--fs-2xs);
  color: var(--c-ink-500);
  line-height: var(--lh-snug);
}

.impact__hint {
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
  line-height: var(--lh-snug);
}

.impact-split {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-surface);
}

.impact-split__item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "icon n"
    "label label";
  align-items: center;
  column-gap: 6px;
  padding: 10px var(--sp-3);
}

.impact-split__item + .impact-split__item {
  border-left: 1px solid var(--c-line-soft);
}

.impact-split__icon {
  grid-area: icon;
  display: inline-flex;
}

.impact-split__n {
  grid-area: n;
  font-size: 1.375rem;
  font-weight: var(--fw-semibold);
  font-feature-settings: var(--num);
  line-height: 1.1;
}

.impact-split__label {
  grid-area: label;
  font-size: var(--fs-2xs);
  color: var(--c-ink-500);
}

.impact-split__item[data-dir="up"] .impact-split__icon,
.impact-split__item[data-dir="up"] .impact-split__n {
  color: var(--c-success);
}

.impact-split__item[data-dir="down"] .impact-split__icon,
.impact-split__item[data-dir="down"] .impact-split__n {
  color: var(--c-danger);
}

.impact-split__item[data-zero="true"] .impact-split__n,
.impact-split__item[data-zero="true"] .impact-split__icon {
  color: var(--c-ink-300);
}

/* --- Band comparison --------------------------------------------------- */
.diff-wrap {
  overflow-x: auto;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-surface);
}

.diff {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--fs-xs);
}

.diff th {
  height: 28px;
  padding: 0 8px;
  text-align: left;
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-ink-400);
  border-bottom: 1px solid var(--c-line);
  white-space: nowrap;
}

.diff td {
  height: 28px;
  padding: 0 8px;
  border-bottom: 1px solid var(--c-line-soft);
  font-feature-settings: var(--num);
  color: var(--c-ink-700);
  white-space: nowrap;
}

.diff tbody tr:last-child td {
  border-bottom: 0;
}

.diff tr[data-changed="true"] td {
  background: var(--c-accent-soft);
}

.diff .num {
  text-align: right;
}

.diff .grade-chip {
  min-width: 24px;
  height: 18px;
  font-size: 10px;
}

.diff__range {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.15;
}

.diff__was {
  font-size: 10px;
  color: var(--c-ink-400);
  text-decoration: line-through;
  text-decoration-color: var(--c-ink-300);
}

.diff__arrow {
  display: none;
}

.diff__is {
  color: var(--c-accent-strong);
  font-weight: var(--fw-semibold);
}

/* The inspector is narrow: the bar column steps aside there. */
.diff__dist {
  display: none;
}

.diff__before {
  color: var(--c-ink-400) !important;
}

.diff__now {
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900) !important;
}

.diff__delta {
  font-weight: var(--fw-semibold);
}

.diff__delta[data-dir="up"] {
  color: var(--c-success);
}

.diff__delta[data-dir="down"] {
  color: var(--c-danger);
}

.diff__none {
  color: var(--c-ink-300);
}

/* --- Affected students ------------------------------------------------- */
.impact__students {
  background: var(--c-surface);
}

.impact__students > .disclosure__body {
  padding: 0;
  background: var(--c-surface);
}

.impact__list {
  max-height: 280px;
}

table.data--compact thead th {
  height: 28px;
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-ink-400);
  padding: 0 var(--sp-3);
}

table.data--compact tbody td {
  height: 34px;
  padding: 3px var(--sp-3);
  font-size: var(--fs-xs);
}

table.data--compact tbody tr[data-fresh="true"] {
  animation: row-in var(--dur-3) var(--ease-out) both;
}

@keyframes row-in {
  from {
    opacity: 0;
    background: var(--c-accent-soft);
  }
  to {
    opacity: 1;
  }
}

.impact__dir {
  text-align: right;
}

.impact__dir .row-marker {
  font-size: 0;
}

.impact__dir[data-dir="up"] .row-marker {
  color: var(--c-success);
}

.impact__dir[data-dir="down"] .row-marker {
  color: var(--c-danger);
}

/* --- Activity log ------------------------------------------------------ */
.audit-empty {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-xs);
  color: var(--c-ink-400);
}

.audit-empty > span {
  display: inline-flex;
  color: var(--c-ink-300);
}

.audit-list {
  display: flex;
  flex-direction: column;
  max-height: 240px;
  overflow: auto;
  margin: 0 calc(var(--sp-2) * -1);
}

.audit-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto;
  align-items: center;
  column-gap: var(--sp-2);
  min-height: 30px;
  padding: 0 var(--sp-2);
  border-radius: var(--r-md);
  font-size: var(--fs-xs);
  transition: background-color var(--dur-1) var(--ease-out);
}

.audit-item:hover {
  background: var(--c-surface-3);
}

.audit-item[data-latest="true"] {
  animation: rise-in var(--dur-2) var(--ease-out) both;
}

.audit-item__time {
  color: var(--c-ink-400);
  font-size: var(--fs-2xs);
  font-feature-settings: var(--num);
}

.audit-item__text {
  display: flex;
  align-items: baseline;
  gap: var(--sp-2);
  min-width: 0;
  color: var(--c-ink-700);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.audit-item__what {
  color: var(--c-ink-700);
  min-width: 70px;
}

.audit-item__change {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-feature-settings: var(--num);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.audit-item__from {
  color: var(--c-ink-400);
  font-weight: var(--fw-regular);
}

.audit-item__arrow {
  color: var(--c-ink-300);
  font-weight: var(--fw-regular);
}

.audit-item__note {
  font-size: var(--fs-2xs);
  color: var(--c-warning);
  overflow: hidden;
  text-overflow: ellipsis;
}

.audit-item__summary {
  display: none;
}

.audit-item__undo {
  height: 24px;
  padding: 0 8px;
  opacity: 0;
  transition: opacity var(--dur-1) var(--ease-out);
}

.audit-item:hover .audit-item__undo,
.audit-item[data-latest="true"] .audit-item__undo,
.audit-item__undo:focus-visible {
  opacity: 1;
}

/* ==========================================================================
   Review - an editorial report with a dark letterhead
   ========================================================================== */
#stage-review .stage__head {
  margin-bottom: var(--sp-5);
}

.sheet {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--r-2xl);
  box-shadow: 0 1px 2px rgba(14, 18, 27, 0.04), 0 16px 40px -24px rgba(14, 18, 27, 0.3);
  overflow: hidden;
}

.sheet__masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "ident status"
    "meta meta";
  gap: var(--sp-8) var(--sp-6);
  padding: var(--sp-8) var(--sp-8) 0;
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(47, 95, 208, 0.16), transparent 55%),
    #0e121b;
  color: var(--c-white);
}

.sheet__ident {
  grid-area: ident;
  min-width: 0;
}

.sheet__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.sheet__crest {
  width: 20px;
  height: 20px;
}

.sheet__title {
  margin-top: var(--sp-3);
  font-size: 3.5rem;
  font-weight: var(--fw-semibold);
  letter-spacing: -0.045em;
  line-height: 0.95;
  color: var(--c-white);
  overflow-wrap: anywhere;
}

.sheet__byline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 2px var(--sp-2);
  margin-top: var(--sp-4);
  font-size: var(--fs-md);
  color: rgba(255, 255, 255, 0.82);
}

.sheet__byline [data-missing="true"] {
  color: #f3a59c;
}

.sheet__sep {
  color: rgba(255, 255, 255, 0.28);
}

.sheet__status {
  grid-area: status;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--sp-2);
}

.sheet__prepared {
  font-size: var(--fs-2xs);
  color: rgba(255, 255, 255, 0.5);
  font-feature-settings: var(--num);
  white-space: nowrap;
}

.stamp {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 30px;
  padding: 0 var(--sp-3);
  border-radius: var(--r-md);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  white-space: nowrap;
  border: 1px solid;
}

.stamp .status-dot {
  width: 7px;
  height: 7px;
}

.stamp[data-tone="ready"] {
  color: #8fe0b9;
  border-color: rgba(143, 224, 185, 0.35);
  background: rgba(143, 224, 185, 0.08);
}

.stamp[data-tone="final"] {
  color: #0e121b;
  border-color: #8fe0b9;
  background: #8fe0b9;
}

.stamp[data-tone="blocked"] {
  color: #f3a59c;
  border-color: rgba(243, 165, 156, 0.4);
  background: rgba(243, 165, 156, 0.08);
}

.sheet__subtitle {
  grid-area: meta;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, auto));
  justify-content: start;
  gap: var(--sp-2) var(--sp-10);
  padding: var(--sp-4) 0 var(--sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sheet__meta {
  min-width: 0;
}

.sheet__meta dt {
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.sheet__meta dd {
  margin-top: 3px;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-white);
  font-feature-settings: var(--num);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 30ch;
}

.sheet__meta[data-missing="true"] dd {
  color: #f3a59c;
}

.sheet__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
}

.sheet__main {
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
  min-width: 0;
  padding: var(--sp-7) var(--sp-8) var(--sp-8);
}

.sheet__aside {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-left: 1px solid var(--c-line);
  background: var(--c-surface-2);
}

.sheet__aside > * {
  padding: var(--sp-6);
}

.sheet__aside > * + * {
  border-top: 1px solid var(--c-line);
}

.sheet__section-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-2) var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-4);
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  letter-spacing: -0.01em;
}

.sheet__section-title > span {
  font-size: var(--fs-2xs);
  font-weight: var(--fw-regular);
  color: var(--c-ink-400);
  font-feature-settings: var(--num);
}

.sheet__aside .sheet__section-title {
  font-size: var(--fs-sm);
}

.sheet__chart {
  padding-top: var(--sp-2);
}

.sheet__bands {
  border-top: 1px solid var(--c-line);
}

.diff--report {
  font-size: var(--fs-sm);
}

.diff--report th,
.diff--report td {
  height: 38px;
  padding: 0 var(--sp-3);
}

.diff--report th {
  height: 32px;
}

.diff--report th:first-child,
.diff--report td:first-child {
  width: 56px;
  padding-left: 0;
}

.diff--report .grade-chip {
  min-width: 28px;
  height: 20px;
  font-size: var(--fs-2xs);
}

.diff--report .diff__range-cell {
  text-align: left;
  color: var(--c-ink-700);
}

.diff--report th:nth-child(2) {
  text-align: left;
}

.diff--report .diff__pct {
  color: var(--c-ink-500);
  width: 64px;
}

.diff--report .diff__share {
  width: 40%;
  padding-right: 0;
}

.diff--report tr[data-empty="true"] td {
  color: var(--c-ink-400);
}

.share-track {
  position: relative;
  height: 6px;
  border-radius: 3px;
  background: var(--c-ink-100);
  overflow: hidden;
  min-width: 48px;
}

.share-track__fill {
  position: absolute;
  inset: 0 auto 0 0;
  border-radius: inherit;
  transition: width var(--dur-3) var(--ease-out);
}

.sheet__notes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--sp-4);
}

.sheet__note {
  padding: var(--sp-4) 0 0;
  border-top: 2px solid var(--c-ink-900);
}

.sheet__note[data-tone="warning"] {
  border-top-color: var(--c-accent);
}

.sheet__note-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.sheet__note-meta {
  font-size: var(--fs-2xs);
  font-weight: var(--fw-regular);
  color: var(--c-ink-400);
  white-space: nowrap;
  font-feature-settings: var(--num);
}

.sheet__note-figure {
  margin-top: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-ink-700);
  line-height: var(--lh-snug);
}

.sheet__note-figure b {
  font-size: 1.5rem;
  font-weight: var(--fw-semibold);
  color: var(--c-accent-strong);
  font-feature-settings: var(--num);
  letter-spacing: -0.02em;
}

.sheet__note[data-tone="neutral"] .sheet__note-figure b {
  color: var(--c-ink-900);
}

.sheet__note-text {
  margin-top: 6px;
  font-size: var(--fs-xs);
  color: var(--c-ink-600);
  line-height: var(--lh-snug);
}

.sheet__notes {
  margin-top: var(--sp-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sheet__notes li {
  position: relative;
  padding-left: 14px;
  font-size: var(--fs-xs);
  color: var(--c-ink-600);
  line-height: var(--lh-snug);
}

.sheet__notes li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.6em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--c-ink-300);
}

/* Export block: the one consequential action, at the head of the column. */
.sheet__export {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  background: var(--c-surface);
}

.sheet__aside-title {
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-400);
}

.sheet__files {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
}

.sheet__files li {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.sheet__files svg {
  flex: none;
  color: var(--c-ink-400);
}

.sheet__files b {
  color: var(--c-ink-900);
  font-weight: var(--fw-semibold);
}

.sheet__export .btn--block {
  height: var(--h-lg);
  margin-top: var(--sp-1);
}

.sheet__export-row {
  display: flex;
  gap: var(--sp-1);
}

.sheet__foot-note {
  font-size: var(--fs-2xs);
  color: var(--c-ink-400);
  line-height: var(--lh-snug);
}

.stats--report {
  --stat-cols: 2;
  gap: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  overflow: visible;
}

.stats--report .stat {
  padding: 10px 0;
  background: transparent;
  border-bottom: 1px solid var(--c-line-soft);
}

.stats--report .stat:nth-child(even) {
  padding-left: var(--sp-3);
  border-left: 1px solid var(--c-line-soft);
}

.stats--report .stat:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.stats--report .stat__label {
  font-size: var(--fs-2xs);
}

.stats--report .stat__value {
  margin-top: 3px;
  font-size: 1.375rem;
}

/* --- Verification list ------------------------------------------------- */
.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--fs-sm);
  color: var(--c-ink-700);
  line-height: var(--lh-snug);
}

.checklist__mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  margin-top: 1px;
  border-radius: 50%;
  background: var(--c-success-soft);
  color: var(--c-success);
  box-shadow: inset 0 0 0 1px var(--c-success-line);
}

.checklist__item[data-ok="false"] .checklist__mark {
  background: var(--c-danger-soft);
  color: var(--c-danger);
  box-shadow: inset 0 0 0 1px var(--c-danger-line);
}

.checklist__item[data-ok="false"][data-soft="true"] .checklist__mark {
  background: var(--c-warning-soft);
  color: var(--c-warning);
  box-shadow: inset 0 0 0 1px var(--c-warning-line);
}

.checklist__label {
  flex: 1 1 auto;
  min-width: 0;
}

.checklist__label b {
  color: var(--c-ink-900);
  font-weight: var(--fw-semibold);
}

.checklist--verify {
  gap: 0;
}

.checklist--verify .checklist__item {
  padding: 9px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.checklist--verify .checklist__item:last-child {
  border-bottom: 0;
}

.checklist--verify .checklist__label {
  display: flex;
  flex-direction: column;
  gap: 1px;
  font-size: var(--fs-xs);
}

.checklist__line {
  color: var(--c-ink-600);
}

.checklist__detail {
  color: var(--c-ink-400);
  font-size: var(--fs-2xs);
  overflow-wrap: anywhere;
}

.checklist--verify .btn {
  margin-top: 6px;
  align-self: flex-start;
}

/* --- Completion record ------------------------------------------------- */
.receipt {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--sp-5);
  margin-bottom: var(--sp-6);
  padding: var(--sp-6) 0 var(--sp-6);
  border-bottom: 1px solid var(--c-line);
}

.receipt__seal {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--c-success-soft);
  color: var(--c-success);
}

.receipt__svg {
  width: 44px;
  height: 44px;
}

.receipt__ring {
  fill: none;
  stroke: var(--c-success);
  stroke-width: 1.5;
  stroke-dasharray: 126;
  stroke-dashoffset: 0;
  animation: seal-ring 600ms var(--ease-out) both;
}

.receipt__tick {
  fill: none;
  stroke: var(--c-success);
  stroke-width: 2.25;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 28;
  stroke-dashoffset: 0;
  animation: seal-tick 360ms var(--ease-out) 380ms both;
}

@keyframes seal-ring {
  from {
    stroke-dashoffset: 126;
  }
}

@keyframes seal-tick {
  from {
    stroke-dashoffset: 28;
  }
}

.receipt__main {
  min-width: 0;
}

.receipt__eyebrow {
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-success);
  font-feature-settings: var(--num);
}

.receipt__title {
  margin-top: 4px;
  font-size: var(--fs-3xl);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--c-ink-900);
}

.receipt__facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-8);
  margin-top: var(--sp-4);
}

.receipt__facts > div {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.receipt__facts dd {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
}

.receipt__facts dt {
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
}

.receipt__files {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--sp-4);
}

.receipt__file {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  height: 26px;
  padding: 0 var(--sp-2);
  border-radius: var(--r-md);
  background: var(--c-surface-2);
  box-shadow: inset 0 0 0 1px var(--c-line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-ink-700);
}

.receipt__file > svg {
  flex: none;
  color: var(--c-ink-400);
}

.receipt__file > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.receipt__actions {
  display: flex;
  gap: var(--sp-1);
}

/* --- Confirmation ------------------------------------------------------ */
.confirm {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.confirm__facts {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: var(--sp-6);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--c-line-soft);
}

.confirm__facts dt {
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-400);
}

.confirm__facts dd {
  margin-top: 4px;
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.confirm__check {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--c-success);
}

.confirm__check > span {
  display: inline-flex;
}

.confirm__check[data-tone="warn"] {
  color: var(--c-warning);
}

.confirm__label {
  margin-bottom: var(--sp-2);
  font-size: var(--fs-3xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-400);
}

.confirm__dist {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 4px;
  margin-top: var(--sp-2);
}

.confirm__band {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--c-ink-900);
  font-feature-settings: var(--num);
}

.confirm__band[data-empty="true"] {
  color: var(--c-ink-300);
}

.confirm__band .grade-chip {
  min-width: 100%;
  height: 20px;
}

.confirm__note {
  font-size: var(--fs-xs);
  color: var(--c-ink-500);
  line-height: var(--lh-snug);
}

.confirm__lead {
  font-size: var(--fs-md);
  color: var(--c-ink-700);
}

.confirm__lead b {
  color: var(--c-ink-900);
  font-weight: var(--fw-semibold);
}

.confirm__files .receipt__files {
  margin-top: 0;
  flex-direction: column;
  align-items: flex-start;
}

/* --- Modal ------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: var(--sp-5);
  background: rgba(14, 18, 27, 0.36);
  animation: fade-in var(--dur-2) var(--ease-out) both;
}

.modal {
  width: min(500px, 100%);
  max-height: min(88vh, 760px);
  overflow: auto;
  background: var(--c-surface);
  border: 1px solid rgba(14, 18, 27, 0.1);
  border-radius: var(--r-2xl);
  box-shadow: var(--sh-xl);
  animation: modal-in var(--dur-3) var(--ease-out) both;
}

.modal__head {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-5) var(--sp-6) 0;
}

.modal__head > span[aria-hidden="true"] {
  display: grid;
  place-items: center;
  flex: none;
  width: 32px;
  height: 32px;
  margin: 0 !important;
  border-radius: var(--r-lg);
  background: var(--c-surface-3);
  box-shadow: inset 0 0 0 1px var(--c-line);
}

.modal__head > span[aria-hidden="true"] svg {
  width: 17px;
  height: 17px;
}

.modal__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  letter-spacing: -0.02em;
}

.modal__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5) var(--sp-6);
}

.modal__foot {
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-2);
  flex-wrap: wrap;
  padding: var(--sp-3) var(--sp-6) var(--sp-4);
  border-top: 1px solid var(--c-line-soft);
  background: var(--c-surface-2);
  border-radius: 0 0 var(--r-2xl) var(--r-2xl);
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.99);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

body[data-modal-open="true"] {
  overflow: hidden;
}

/* ==========================================================================
   Responsive workspace
   ========================================================================== */

/* Laptop: the inspector narrows; the report aside narrows. */
@media (max-width: 1320px) {
  .instrument {
    grid-template-columns: minmax(0, 1fr) 312px;
  }

  .sheet__body {
    grid-template-columns: minmax(0, 1fr) 288px;
  }
}

/* Tablet: the analysis rail and the inspector move beneath their canvas. */
@media (max-width: 1100px) {
  .stage--import[data-active="true"] {
    column-gap: var(--sp-8);
  }

  .import__head .stage__title {
    font-size: 2.25rem;
  }

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

  .canvas {
    margin-inline: calc(var(--sp-6) * -1);
  }

  .canvas__main {
    padding-inline: var(--sp-6);
  }

  .insight {
    flex-direction: row;
    border-left: 0;
    border-top: 1px solid var(--c-line);
  }

  .insight__block {
    flex: 1 1 0;
    min-width: 0;
    padding-inline: var(--sp-6);
  }

  .insight__block + .insight__block {
    border-top: 0;
    border-left: 1px solid var(--c-line-soft);
  }

  .stats--readout {
    --stat-cols: 4;
  }

  .stats--readout .stat:nth-child(even) {
    border-left: 0;
  }

  .stats--readout .stat:not(:nth-child(4n + 1)) {
    padding-left: var(--sp-3);
    border-left: 1px solid var(--c-line-soft);
  }

  .stats--readout .stat:nth-last-child(-n + 4) {
    border-bottom: 0;
  }

  .instrument {
    grid-template-columns: minmax(0, 1fr);
    margin-inline: calc(var(--sp-6) * -1);
  }

  .instrument__main {
    padding-inline: var(--sp-6);
  }

  .inspector__section--suggest {
    grid-column: 1 / -1;
    border-top: 1px solid var(--c-line);
    border-left: 0 !important;
  }

  .inspector {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    border-left: 0;
    border-top: 1px solid var(--c-line);
    border-radius: 0 0 var(--r-2xl) var(--r-2xl);
  }

  .inspector__section + .inspector__section {
    border-top: 0;
    border-left: 1px solid var(--c-line);
  }

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

  .sheet__aside {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    border-left: 0;
    border-top: 1px solid var(--c-line);
  }

  .sheet__aside > * + * {
    border-top: 0;
  }

  .sheet__aside > .sheet__export {
    grid-column: 1 / -1;
    border-bottom: 1px solid var(--c-line);
  }

  .sheet__aside > :last-child {
    border-left: 1px solid var(--c-line);
  }

  .sheet__subtitle {
    grid-template-columns: repeat(3, minmax(0, auto));
  }
}

/* Portrait tablet: upload mode stacks; health mode stacks the picker. */
@media (max-width: 900px) {
  .stage--import[data-active="true"],
  .stage--import[data-active="true"]:has(#importOnboarding[hidden]) {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "head"
      "drop"
      "spec"
      "status"
      "draft"
      "error"
      "rules"
      "picker"
      "report"
      "session";
  }

  .import__head {
    margin: var(--sp-2) 0 0;
  }

  .import__spec {
    margin-top: var(--sp-6);
  }

  .import__picker > .panel {
    position: static;
  }

  .import-rules__body {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--sp-5);
  }

  .metric-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .metric:nth-child(4) {
    border-left: 0;
  }

  .metric:nth-child(n + 4) {
    border-top: 1px solid var(--c-line-soft);
  }

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

  .inspector__section + .inspector__section {
    border-left: 0;
    border-top: 1px solid var(--c-line);
  }

  .sheet__masthead {
    padding: var(--sp-6) var(--sp-5) 0;
  }

  .sheet__main {
    padding: var(--sp-6) var(--sp-5);
  }

  .sheet__title {
    font-size: 2.75rem;
  }

  .gradegrid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* Phone: the instrument keeps chart, scale and impact; actions stay pinned. */
@media (max-width: 720px) {
  .import__head .stage__title {
    font-size: 2rem;
  }

  .dropzone {
    min-height: 0;
    padding: var(--sp-8) var(--sp-4) var(--sp-10);
  }

  .dropzone::after {
    display: none;
  }

  .dropzone__actions .btn {
    flex: 1 1 100%;
  }

  .canvas {
    margin-inline: calc(var(--sp-4) * -1);
  }

  .canvas__main {
    padding-inline: var(--sp-4);
  }

  .insight {
    flex-direction: column;
  }

  .insight__block {
    padding-inline: var(--sp-4);
  }

  .insight__block + .insight__block {
    border-left: 0;
    border-top: 1px solid var(--c-line-soft);
  }

  .stats--readout {
    --stat-cols: 2;
  }

  .stats--readout .stat:not(:nth-child(4n + 1)) {
    padding-left: 0;
    border-left: 0;
  }

  .stats--readout .stat:nth-child(even) {
    padding-left: var(--sp-3);
    border-left: 1px solid var(--c-line-soft);
  }

  .stats--readout .stat:nth-last-child(-n + 4) {
    border-bottom: 1px solid var(--c-line-soft);
  }

  .stats--readout .stat:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .search,
  .search .input {
    width: 100%;
  }

  .ledger__head > .search {
    flex: 1 1 100%;
  }

  .instrument {
    margin-inline: calc(var(--sp-4) * -1);
    margin-bottom: calc(var(--sp-10) * -1);
  }

  .instrument__main {
    padding: var(--sp-4) var(--sp-4) var(--sp-6);
  }

  .inspector__section {
    padding-inline: var(--sp-4);
  }

  .inspector__section--suggest {
    display: none;
  }

  /* Configure's actions become a bar pinned to the bottom of the screen. */
  #stage-configure .stage__actions {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: var(--z-sticky);
    display: grid;
    grid-template-columns: auto auto minmax(0, 1fr);
    gap: var(--sp-2);
    padding: 10px var(--sp-4) calc(10px + env(safe-area-inset-bottom));
    background: color-mix(in srgb, var(--c-surface) 95%, transparent);
    backdrop-filter: saturate(160%) blur(12px);
    -webkit-backdrop-filter: saturate(160%) blur(12px);
    border-top: 1px solid var(--c-line);
  }

  /* Undo and reset keep their names for assistive technology but show only
     their icons, so the primary action gets the width it needs. */
  #stage-configure .stage__actions .btn--secondary {
    width: 40px;
    padding: 0;
    font-size: 0;
    gap: 0;
  }

  #stage-configure .stage__actions .btn--secondary > svg {
    width: 16px;
    height: 16px;
  }

  #stage-configure[data-active="true"] {
    padding-bottom: 72px;
  }

  body:has(#stage-configure[data-active="true"]) .toast-region {
    bottom: calc(72px + env(safe-area-inset-bottom));
  }

  .sheet__masthead {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      "ident"
      "status"
      "meta";
    gap: var(--sp-5);
  }

  .sheet__status {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .sheet__title {
    font-size: 2.5rem;
  }

  .sheet__subtitle {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--sp-3);
  }

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

  .sheet__aside > * {
    padding: var(--sp-5);
  }

  .sheet__aside > :last-child {
    border-left: 0;
    border-top: 1px solid var(--c-line);
  }

  .receipt {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .receipt__actions {
    grid-column: 1 / -1;
  }

  .receipt__title {
    font-size: 2rem;
  }

  .confirm__facts {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .confirm__facts > div:last-child {
    display: none;
  }

  .modal-backdrop {
    align-items: end;
    padding: var(--sp-3);
  }

  .modal {
    max-height: calc(100vh - 24px);
  }

  .modal__head,
  .modal__body,
  .modal__foot {
    padding-inline: var(--sp-5);
  }

  .modal__foot .btn {
    flex: 1 1 auto;
  }

  .gradegrid__cell {
    flex-direction: column;
    align-items: center;
    gap: 2px;
  }
}

@media (max-width: 560px) {
  .filechip {
    flex-wrap: wrap;
    row-gap: var(--sp-2);
  }

  .filechip__body {
    flex: 1 1 calc(100% - 48px);
  }

  .filechip > .badge {
    margin-left: 44px;
  }

  .filechip > .btn {
    margin-left: auto;
  }

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

  .metric:nth-child(odd) {
    border-left: 0;
  }

  .metric:nth-child(4) {
    border-left: 1px solid var(--c-line-soft);
  }

  .metric:nth-child(n + 3) {
    border-top: 1px solid var(--c-line-soft);
  }

  .metric__note {
    display: none;
  }

  .confirm__dist {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}