@font-face {
  font-family: "Montserrat";
  src: url("assets/fonts/Montserrat-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Montserrat";
  src: url("assets/fonts/Montserrat-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/fonts/SpaceGrotesk-SemiBold.ttf") format("truetype");
  font-style: normal;
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/fonts/SpaceGrotesk-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --string-green: #75f8cc;
  --string-green-hover: #8af9d4;
  --string-green-active: #69d5b2;
  --string-green-dark: #44675f;
  --string-dark: #33373b;
  --string-darker: #24272b;
  --string-sky: #c0f4fb;
  --string-sky-soft: #e3fafd;
  --string-white: #ffffff;
  --string-canvas: #f7f7f7;
  --string-line: #d2d3d4;
  --string-line-soft: #ebebeb;
  --string-muted: #64676a;
  --string-disabled: #8d8f91;
  --string-danger: #a7293f;
  --string-danger-soft: #fff1f3;
  --string-warning: #8a5a00;
  --string-warning-soft: #fff8e7;
  --string-success: #2f6656;
  --font-body: "Montserrat", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Montserrat", ui-sans-serif, system-ui, sans-serif;
}

.scanner-page,
.metrics-page,
.template-page,
.calibration-page {
  background: var(--string-canvas);
  color: var(--string-dark);
  font-family: var(--font-body);
  letter-spacing: 0;
}

.scanner-page h1,
.scanner-page h2,
.scanner-page h3,
.metrics-page h1,
.metrics-page h2,
.template-page h1,
.template-page h2,
.calibration-page h1,
.calibration-page h2 {
  color: var(--string-dark);
  font-family: var(--font-display);
  letter-spacing: 0;
}

.scanner-page .app-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid var(--string-line);
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(12px);
}

.scanner-page .app-header-inner,
.scanner-page .app-shell {
  width: min(1440px, calc(100% - 40px));
}

.scanner-page .app-header-inner {
  min-height: 72px;
}

.scanner-page .brand {
  min-width: 0;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.scanner-page .string-wordmark {
  width: 74px;
  height: auto;
  flex: none;
}

.scanner-page .brand-divider {
  width: 1px;
  height: 30px;
  flex: none;
  background: var(--string-line);
}

.scanner-page .brand-copy h1 {
  display: block;
  margin: 0;
  color: var(--string-dark);
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.15;
}

.scanner-page .brand-copy p {
  margin: 2px 0 0;
  color: var(--string-muted);
  font-size: 11px;
}

.scanner-page .app-shell {
  padding: 22px 0 48px;
}

.scanner-page .top-actions {
  gap: 8px;
}

.scanner-page .privacy-note {
  color: var(--string-muted);
}

.scanner-page .privacy-note::before {
  background: var(--string-green-dark);
  box-shadow: 0 0 0 3px var(--string-sky-soft);
}

.scanner-page .data-safety-note {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 16px;
  padding: 12px 14px;
  border: 1px solid #a1cad1;
  border-radius: 8px;
  background: var(--string-sky-soft);
  color: var(--string-dark);
}

.scanner-page .data-safety-note::before {
  content: "i";
  display: grid;
  width: 20px;
  height: 20px;
  flex: 0 0 20px;
  place-items: center;
  border-radius: 50%;
  background: var(--string-dark);
  color: white;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
}

.scanner-page .workflow-progress { margin: 0 0 16px; }

.scanner-page .workflow-progress ol {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  list-style: none;
}

.scanner-page .workflow-progress li {
  min-width: 0;
  border-left: 1px solid var(--string-line-soft);
}

.scanner-page .workflow-progress li:first-child { border-left: 0; }

.scanner-page .workflow-progress a {
  display: flex;
  min-height: 58px;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  color: inherit;
  text-decoration: none;
}

.scanner-page .workflow-progress a:focus-visible {
  outline: 3px solid rgba(51, 55, 59, .2);
  outline-offset: -3px;
}

.scanner-page .workflow-index {
  display: grid;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  place-items: center;
  border: 1px solid var(--string-line);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
}

.scanner-page .workflow-progress strong,
.scanner-page .workflow-progress small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scanner-page .workflow-progress strong {
  font-family: var(--font-display);
  font-size: 12px;
  line-height: 1.25;
}

.scanner-page .workflow-progress small {
  margin-top: 2px;
  color: var(--string-muted);
  font-size: 10px;
}

.scanner-page .workflow-progress li.is-complete .workflow-index {
  border-color: var(--string-green);
  background: var(--string-green);
  font-size: 0;
}

.scanner-page .workflow-progress li.is-complete .workflow-index::after {
  content: "\2713";
  font-size: 12px;
}

.scanner-page .workflow-progress li.is-current { box-shadow: inset 0 -3px var(--string-green-dark); }

.scanner-page .workflow-progress li.is-current .workflow-index {
  border-color: var(--string-dark);
  background: var(--string-dark);
  color: var(--string-white);
}

.scanner-page .row {
  grid-template-columns: minmax(340px, .8fr) minmax(520px, 1.4fr);
  gap: 16px;
}

.scanner-page .setup-row {
  grid-template-columns: minmax(0, .8fr) minmax(420px, 1.2fr);
  align-items: start;
}

.scanner-page .setup-card,
.scanner-page .upload-card { min-width: 0; }

.scanner-page .workflow-section { margin-top: 16px; }

.scanner-page #answerKeyStep,
.scanner-page #uploadStep,
.scanner-page #studentDirectory,
.scanner-page #reviewStep,
.scanner-page #resultsSection { scroll-margin-top: 92px; }

.scanner-page .student-directory-actions {
  display: grid;
  grid-template-columns: max-content minmax(280px, 1fr);
  align-items: end;
  gap: 12px;
  margin-top: 12px;
}

.scanner-page .student-file-control {
  display: grid;
  min-width: 0;
  gap: 5px;
  font-size: 12px;
  font-weight: 600;
}

.scanner-page .student-file-control input {
  width: 100%;
  min-width: 0;
  max-width: 520px;
}

.scanner-page .setup-help {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--string-line-soft);
  font-size: 12px;
}

.scanner-page .setup-help > summary {
  cursor: pointer;
  font-weight: 600;
}

.scanner-page .setup-help p:last-child { margin-bottom: 0; }

.scanner-page .card {
  padding: 18px;
  border: 1px solid var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  box-shadow: 0 1px 2px rgba(51, 55, 59, .05);
}

.scanner-page .small,
.scanner-page .directory-toggle-hint,
.scanner-page .brand-copy p {
  color: var(--string-muted);
}

.scanner-page .step-heading {
  color: var(--string-dark);
  font-size: 16px;
}

.scanner-page .step-number {
  width: 30px;
  height: 30px;
  flex-basis: 30px;
  background: var(--string-green);
  color: var(--string-dark);
  font-family: var(--font-display);
  font-size: 14px;
}

.scanner-page .step-divider {
  border-color: var(--string-line-soft);
}

.scanner-page button,
.scanner-page .link-pill {
  min-height: 34px;
  border: 1px solid var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
  box-shadow: none;
  font-family: var(--font-body);
  font-weight: 600;
  transform: none;
}

.scanner-page button:hover:not(:disabled),
.scanner-page .link-pill:hover {
  border-color: var(--string-dark);
  background: var(--string-ink-50, #f7f7f7);
  color: var(--string-dark);
  transform: none;
}

.scanner-page button.primary {
  border-color: var(--string-green);
  background: var(--string-green);
  color: var(--string-dark);
  box-shadow: none;
}

.scanner-page button.primary:hover:not(:disabled) {
  border-color: var(--string-green-hover);
  background: var(--string-green-hover);
  color: var(--string-dark);
}

.scanner-page button.primary:active:not(:disabled) {
  border-color: var(--string-green-active);
  background: var(--string-green-active);
}

.scanner-page #openTutorial {
  border-color: var(--string-green);
  background: var(--string-green);
}

.scanner-page .danger-button {
  border-color: #d79da7;
  color: var(--string-danger);
}

.scanner-page .danger-button:hover:not(:disabled) {
  border-color: var(--string-danger);
  background: var(--string-danger-soft);
  color: var(--string-danger);
}

.scanner-page button:focus-visible,
.scanner-page .link-pill:focus-visible,
.scanner-page select:focus-visible,
.scanner-page input:focus-visible,
.scanner-page textarea:focus-visible,
.scanner-page .drop:focus-visible {
  outline: 3px solid rgba(51, 55, 59, .2);
  outline-offset: 2px;
  border-color: var(--string-dark);
}

.scanner-page button:disabled {
  opacity: .46;
}

.scanner-page textarea,
.scanner-page input,
.scanner-page select {
  border: 1px solid var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
}

.scanner-page textarea::placeholder,
.scanner-page input::placeholder {
  color: var(--string-disabled);
}

.scanner-page .pill {
  border-color: var(--string-line);
  border-radius: 8px;
  background: var(--string-canvas);
}

.scanner-page .drop {
  position: relative;
  min-height: 190px;
  margin-top: 14px !important;
  padding: 24px;
  border: 2px dashed #b1b3b5;
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
  transition: border-color .15s ease, background .15s ease;
}

.scanner-page .drop:hover {
  border-color: var(--string-dark);
  background: var(--string-canvas);
}

.scanner-page .drop.dragover {
  border-color: var(--string-green-dark);
  background: #eafef7;
}

.scanner-page .drop.dragover .drop-default,
.scanner-page .drop:not(.dragover) .drop-active {
  display: none;
}

.scanner-page .drop-content {
  width: min(100%, 420px);
  margin: auto;
  text-align: center;
}

.scanner-page .drop-icon {
  width: 46px;
  height: 46px;
  margin: 0 auto 12px;
  border: 1px solid #a1cad1;
  border-radius: 8px;
  background: var(--string-sky-soft);
  color: var(--string-dark);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
}

.scanner-page .drop-title {
  color: var(--string-dark);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 600;
}

.scanner-page .upload-link {
  color: var(--string-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.scanner-page .drop:hover .upload-link {
  text-decoration-thickness: 2px;
}

.scanner-page .drop-separator {
  margin: 4px 0 12px;
  color: var(--string-muted);
  font-size: 12px;
}

.scanner-page .upload-meta {
  display: flex;
  justify-content: center;
  gap: 6px 12px;
  margin-top: 10px;
  color: var(--string-muted);
  font-size: 11px;
}

.scanner-page .upload-feedback {
  min-height: 18px;
  margin: 8px 0 0;
  color: var(--string-muted);
  font-size: 12px;
}

.scanner-page .upload-feedback[data-tone="error"] {
  color: var(--string-danger);
}

.scanner-page .upload-feedback[data-tone="success"] {
  color: var(--string-success);
}

.scanner-page .upload-queue {
  margin-top: 12px;
  border: 1px solid var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
}

.scanner-page .upload-queue[hidden] {
  display: none;
}

.scanner-page .upload-queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--string-line-soft);
}

.scanner-page .upload-queue-header strong {
  font-family: var(--font-display);
  font-size: 13px;
}

.scanner-page .upload-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.scanner-page .upload-file {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 16px;
  padding: 10px 12px;
  border-top: 1px solid var(--string-line-soft);
}

.scanner-page .upload-file:first-child {
  border-top: 0;
}

.scanner-page .upload-file-name {
  overflow: hidden;
  color: var(--string-dark);
  font-size: 12px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.scanner-page .upload-file-meta {
  color: var(--string-muted);
  font-size: 11px;
}

.scanner-page .upload-file-state {
  align-self: center;
  grid-column: 2;
  grid-row: 1 / span 2;
  padding: 3px 7px;
  border-radius: 999px;
  background: var(--string-sky-soft);
  color: var(--string-dark);
  font-size: 10px;
  font-weight: 600;
}

.scanner-page .upload-file-state.processed {
  background: #eafef7;
  color: var(--string-success);
}

.scanner-page .stage-empty {
  display: flex;
  min-height: 120px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 24px;
  border: 1px dashed var(--string-line);
  border-radius: 8px;
  background: var(--string-canvas);
  text-align: center;
}

.scanner-page .stage-empty strong {
  font-family: var(--font-display);
  font-size: 14px;
}

.scanner-page .stage-empty span {
  max-width: 520px;
  margin-top: 4px;
  color: var(--string-muted);
  font-size: 12px;
}

.scanner-page .stage-empty[hidden],
.scanner-page #reviewContent[hidden],
.scanner-page #resultsContent[hidden],
.scanner-page .processing-issues[hidden] { display: none; }

.scanner-page .processing-issues {
  flex-basis: 100%;
  margin-top: 2px;
  padding-top: 10px;
  border-top: 1px solid var(--string-line-soft);
}

.scanner-page .processing-issues > summary {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  list-style: none;
}

.scanner-page .processing-issues > summary::-webkit-details-marker { display: none; }

.scanner-page .processing-issues > summary span {
  color: var(--string-muted);
  font-size: 11px;
}

.scanner-page .processing-issues .issue-filters,
.scanner-page .processing-issues .issue-checklist { margin-top: 10px; }

.scanner-page #status {
  border-color: var(--string-line);
  background: var(--string-canvas);
  color: var(--string-muted);
}

.scanner-page #status::before {
  background: var(--string-green-dark);
}

.scanner-page .issue-checklist,
.scanner-page #studentArea,
.scanner-page .results-views {
  border-color: var(--string-line);
  background: var(--string-canvas);
}

.scanner-page .issue-checklist li.priority-id {
  border-color: var(--string-warning);
  background: var(--string-warning-soft);
  color: var(--string-warning);
}

.scanner-page pre.log {
  border-color: var(--string-line);
  background: var(--string-canvas);
  color: var(--string-dark);
}

.scanner-page code {
  color: var(--string-dark);
}

.scanner-page #resultsSection [aria-pressed="true"] {
  border-color: var(--string-dark);
  background: var(--string-dark);
  color: white;
}

.scanner-page .report-action-ready,
.scanner-page .report-action-ready:hover:not(:disabled) {
  border-color: var(--string-green-dark) !important;
  background: #eafef7 !important;
  color: var(--string-success) !important;
  box-shadow: none !important;
}

.scanner-page .cta {
  border-color: var(--string-dark) !important;
  box-shadow: 0 0 0 3px rgba(51, 55, 59, .16) !important;
}

.scanner-page dialog {
  border-color: var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
  box-shadow: 0 24px 80px rgba(36, 39, 43, .24);
}

.scanner-page dialog a {
  color: var(--string-green-dark);
}

.scanner-page .tutorial-guide {
  border-color: var(--string-dark);
  border-radius: 8px;
  background: var(--string-dark);
  color: white;
}

.scanner-page .tutorial-guide strong,
.scanner-page .tutorial-guide button {
  color: white;
}

.scanner-page .tutorial-guide button {
  border-color: #64676a;
  background: var(--string-darker);
}

.scanner-page .tutorial-drag-hint {
  color: var(--string-line);
}

.scanner-page .tutorial-focus {
  outline-color: var(--string-dark) !important;
  box-shadow: 0 0 0 6px rgba(117, 248, 204, .45) !important;
}

.scanner-page .app-credit {
  border-color: var(--string-line);
  color: var(--string-muted);
}

.scanner-page .app-credit strong {
  color: var(--string-dark);
  font-weight: 600;
}

.scanner-page .app-credit a {
  color: var(--string-dark);
  text-underline-offset: 3px;
}

/* Metrics */
.metrics-page {
  --bg: var(--string-canvas);
  --surface: var(--string-white);
  --line: var(--string-line);
  --text: var(--string-dark);
  --muted: var(--string-muted);
  --teal: var(--string-green-dark);
  --yellow: #b47500;
  --coral: #a7293f;
  --blue: #377884;
}

.metrics-page .site-header {
  border-color: var(--string-line);
  background: var(--string-white);
}

.metrics-page .brand img {
  width: 74px;
}

.metrics-page .brand strong,
.metrics-page .brand span {
  color: var(--string-dark);
}

.metrics-page .nav a {
  border-color: var(--string-line);
  border-radius: 8px;
}

.metrics-page .nav a[aria-current="page"] {
  border-color: var(--string-dark);
  background: var(--string-dark);
  color: white;
}

.metrics-page .metric,
.metrics-page .chart,
.metrics-page .status {
  border-color: var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
}

.metrics-page .status.error {
  border-color: #d79da7;
  background: var(--string-danger-soft);
  color: var(--string-danger);
}

.metrics-page .bar {
  background: var(--string-green-dark);
}

.metrics-page button {
  border-color: var(--string-green);
  border-radius: 8px;
  background: var(--string-green);
  color: var(--string-dark);
}

.metrics-page .access-form input {
  border-color: var(--string-line);
  background: white;
  color: var(--string-dark);
}

/* Editors */
.template-page,
.calibration-page {
  --bg: var(--string-canvas);
  --panel: var(--string-white);
  --card: var(--string-white);
  --line: var(--string-line);
  --muted: var(--string-muted);
  --accent: var(--string-green-dark);
  min-height: 100vh;
}

.template-page header {
  border-color: var(--string-line);
  background: var(--string-white);
}

.template-page .kicker {
  color: var(--string-green-dark);
}

.template-page .panel,
.calibration-page .card {
  border-color: var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
}

.template-page input[type="text"],
.template-page textarea,
.calibration-page textarea,
.calibration-page input,
.calibration-page select {
  border-color: var(--string-line);
  background: var(--string-white);
  color: var(--string-dark);
}

.template-page button,
.calibration-page button {
  border-color: var(--string-line);
  border-radius: 8px;
  background: var(--string-white);
  color: var(--string-dark);
}

.template-page button.primary,
.calibration-page button.primary {
  border-color: var(--string-green);
  background: var(--string-green);
  color: var(--string-dark);
}

.template-page a,
.calibration-page a {
  color: var(--string-green-dark);
}

.template-page dialog {
  border-color: var(--string-line);
  border-radius: 8px;
  background: white;
  color: var(--string-dark);
}

@media (max-width: 980px) {
  .scanner-page .row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .scanner-page .app-header-inner,
  .scanner-page .app-shell {
    width: min(100% - 24px, 1440px);
  }

  .scanner-page .app-header {
    position: static;
  }

  .scanner-page .app-header-inner {
    align-items: stretch;
  }

  .scanner-page .top-actions {
    justify-content: flex-start;
  }

  .scanner-page .privacy-note {
    display: none;
  }

  .scanner-page .workflow-progress {
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .scanner-page .workflow-progress ol { min-width: 560px; }

  .scanner-page .workflow-progress a {
    min-height: 52px;
    padding: 8px 10px;
  }

  .scanner-page .student-directory-actions {
    grid-template-columns: 1fr;
    align-items: stretch;
  }

  .scanner-page .student-file-control,
  .scanner-page .student-file-control input { width: 100%; }

  .scanner-page .drop {
    min-height: 176px;
    padding: 20px 14px;
  }

  .scanner-page .upload-meta {
    flex-direction: column;
    gap: 2px;
  }
}

@media print {
  .scanner-page .app-header,
  .scanner-page .data-safety-note,
  .scanner-page .upload-queue,
  .scanner-page .workflow-progress {
    display: none !important;
  }
}