.driver-active .driver-overlay,.driver-active *{pointer-events:none}.driver-active .driver-active-element,.driver-active .driver-active-element *,.driver-popover,.driver-popover *{pointer-events:auto}@keyframes animate-fade-in{0%{opacity:0}to{opacity:1}}.driver-fade .driver-overlay{animation:animate-fade-in .2s ease-in-out}.driver-fade .driver-popover{animation:animate-fade-in .2s}.driver-popover{all:unset;box-sizing:border-box;color:#2d2d2d;margin:0;padding:15px;border-radius:5px;min-width:250px;max-width:300px;box-shadow:0 1px 10px #0006;z-index:1000000000;position:fixed;top:0;right:0;background-color:#fff}.driver-popover *{font-family:Helvetica Neue,Inter,ui-sans-serif,"Apple Color Emoji",Helvetica,Arial,sans-serif}.driver-popover-title{font:19px/normal sans-serif;font-weight:700;display:block;position:relative;line-height:1.5;zoom:1;margin:0}.driver-popover-close-btn{all:unset;position:absolute;top:0;right:0;width:32px;height:28px;cursor:pointer;font-size:18px;font-weight:500;color:#d2d2d2;z-index:1;text-align:center;transition:color;transition-duration:.2s}.driver-popover-close-btn:hover,.driver-popover-close-btn:focus{color:#2d2d2d}.driver-popover-title[style*=block]+.driver-popover-description{margin-top:5px}.driver-popover-description{margin-bottom:0;font:14px/normal sans-serif;line-height:1.5;font-weight:400;zoom:1}.driver-popover-footer{margin-top:15px;text-align:right;zoom:1;display:flex;align-items:center;justify-content:space-between}.driver-popover-progress-text{font-size:13px;font-weight:400;color:#727272;zoom:1}.driver-popover-footer button{all:unset;display:inline-block;box-sizing:border-box;padding:3px 7px;text-decoration:none;text-shadow:1px 1px 0 #fff;background-color:#fff;color:#2d2d2d;font:12px/normal sans-serif;cursor:pointer;outline:0;zoom:1;line-height:1.3;border:1px solid #ccc;border-radius:3px}.driver-popover-footer .driver-popover-btn-disabled{opacity:.5;pointer-events:none}:not(body):has(>.driver-active-element){overflow:hidden!important}.driver-no-interaction,.driver-no-interaction *{pointer-events:none!important}.driver-popover-footer button:hover,.driver-popover-footer button:focus{background-color:#f7f7f7}.driver-popover-navigation-btns{display:flex;flex-grow:1;justify-content:flex-end}.driver-popover-navigation-btns button+button{margin-left:4px}.driver-popover-arrow{content:"";position:absolute;border:5px solid #fff}.driver-popover-arrow-side-over{display:none}.driver-popover-arrow-side-left{left:100%;border-right-color:transparent;border-bottom-color:transparent;border-top-color:transparent}.driver-popover-arrow-side-right{right:100%;border-left-color:transparent;border-bottom-color:transparent;border-top-color:transparent}.driver-popover-arrow-side-top{top:100%;border-right-color:transparent;border-bottom-color:transparent;border-left-color:transparent}.driver-popover-arrow-side-bottom{bottom:100%;border-left-color:transparent;border-top-color:transparent;border-right-color:transparent}.driver-popover-arrow-side-center{display:none}.driver-popover-arrow-side-left.driver-popover-arrow-align-start,.driver-popover-arrow-side-right.driver-popover-arrow-align-start{top:15px}.driver-popover-arrow-side-top.driver-popover-arrow-align-start,.driver-popover-arrow-side-bottom.driver-popover-arrow-align-start{left:15px}.driver-popover-arrow-align-end.driver-popover-arrow-side-left,.driver-popover-arrow-align-end.driver-popover-arrow-side-right{bottom:15px}.driver-popover-arrow-side-top.driver-popover-arrow-align-end,.driver-popover-arrow-side-bottom.driver-popover-arrow-align-end{right:15px}.driver-popover-arrow-side-left.driver-popover-arrow-align-center,.driver-popover-arrow-side-right.driver-popover-arrow-align-center{top:50%;margin-top:-5px}.driver-popover-arrow-side-top.driver-popover-arrow-align-center,.driver-popover-arrow-side-bottom.driver-popover-arrow-align-center{left:50%;margin-left:-5px}.driver-popover-arrow-none{display:none}
:root {
  color: #1e3440;
  background: #f2f7fa;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.4;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  background: #f2f7fa;
  color: #1e3440;
  margin: 0;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.secondary {
  align-items: center;
  background: #008bd2;
  border: 1px solid #008bd2;
  border-radius: 6px;
  color: #fff;
  cursor: pointer;
  display: inline-flex;
  gap: 8px;
  min-height: 36px;
  padding: 0 12px;
  text-decoration: none;
}

button.secondary,
.secondary {
  background: #fff;
  border-color: #b9dcea;
  color: #006ea8;
}

button:hover,
.secondary:hover {
  filter: brightness(0.96);
}

input,
select,
textarea {
  background: #fff;
  border: 1px solid #bdd9e6;
  border-radius: 5px;
  color: #1e3440;
  min-height: 36px;
  padding: 7px 10px;
  width: 100%;
}

.tag-input-control {
  display: grid;
  gap: 8px;
}

.tag-input {
  align-items: center;
  background: #fff;
  border: 1px solid #bdd9e6;
  border-radius: 5px;
  cursor: text;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 36px;
  padding: 6px 10px;
}

.tag-input.focused {
  border-color: #7ebada;
  box-shadow: 0 0 0 3px rgba(0, 110, 168, 0.08);
}

.tag-input-field {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  flex: 1 0 120px;
  min-height: 24px;
  min-width: 120px;
  padding: 0;
  width: auto;
}

.tag-input-field:focus {
  outline: none;
}

.tag-input-chip {
  align-items: center;
  background: #e2f3fb;
  border-radius: 999px;
  color: #006ea8;
  display: inline-flex;
  gap: 6px;
  max-width: 100%;
  padding: 3px 8px 3px 10px;
}

.tag-input-chip span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tag-input-chip-remove {
  align-items: center;
  background: transparent;
  border: 0;
  border-radius: 999px;
  color: inherit;
  display: inline-flex;
  font-size: 15px;
  height: 18px;
  justify-content: center;
  min-height: 18px;
  padding: 0;
  width: 18px;
}

.tag-input-chip-remove:hover {
  background: rgba(0, 110, 168, 0.12);
  filter: none;
}

.tag-input-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-input-suggestion {
  background: #f3f9fc;
  border: 1px dashed #b7d9ea;
  border-radius: 999px;
  color: #006ea8;
  min-height: 28px;
  padding: 0 10px;
}

.tag-input-suggestion:hover {
  background: #e7f4fb;
  filter: none;
}

textarea {
  resize: vertical;
}

.app-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.app-shell.exam-shell {
  background: #f2f7fa;
  display: block;
}

.exam-shell .main-pane {
  background: #f2f7fa;
  min-height: 100vh;
  padding: 0;
}

.sidebar {
  background: #004f80;
  box-sizing: border-box;
  color: #eef5f7;
  display: flex;
  flex-direction: column;
  height: 100vh;
  inset: 0 auto 0 0;
  overflow-y: auto;
  padding: 18px;
  position: fixed;
  width: 240px;
  z-index: 20;
}

.beta-banner {
  align-self: flex-start;
  background: #c91818;
  border-radius: 3px;
  box-shadow: 0 2px 8px rgba(74, 0, 0, 0.22);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  line-height: 1;
  margin-bottom: 12px;
  padding: 6px 9px;
}

.brand {
  align-items: center;
  color: inherit;
  display: flex;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.brand img {
  height: 34px;
  object-fit: contain;
  width: 34px;
}

.nav {
  flex: 1 1 auto;
  margin-top: 28px;
  overflow-y: auto;
  padding-bottom: 16px;
}

.nav-section {
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  margin: 22px 8px 6px;
  text-transform: uppercase;
}

.nav a {
  align-items: center;
  border-radius: 6px;
  color: #dce7eb;
  display: flex;
  gap: 10px;
  padding: 10px 8px;
  text-decoration: none;
}

.auth-gate {
  align-items: center;
  background:
    radial-gradient(circle at 20% 10%, rgba(0, 139, 210, 0.1), transparent 28%),
    #f2f7fa;
  display: grid;
  min-height: 100vh;
  padding: 24px;
}

.auth-panel {
  background: #fff;
  border: 1px solid #c8e0eb;
  border-radius: 8px;
  box-shadow: 0 18px 60px rgba(0, 79, 128, 0.12);
  color-scheme: light;
  display: grid;
  gap: 18px;
  justify-self: center;
  max-width: 500px;
  padding: 30px;
  width: 100%;
}

.auth-brand {
  align-items: center;
  display: flex;
  gap: 16px;
}

.auth-brand img {
  flex: 0 0 auto;
  height: 72px;
  object-fit: contain;
  width: 72px;
}

.auth-panel h1 {
  color: #1e3440;
  font-size: 30px;
  line-height: 1.12;
  margin: 0;
}

.auth-copy,
.auth-message,
.auth-action-hint,
.auth-switch-copy {
  color: #647985;
  margin: 0;
}

.auth-action-hint {
  background: #edf7fc;
  border: 1px solid #c8e0eb;
  border-radius: 6px;
  font-size: 14px;
  padding: 9px 11px;
}

.auth-message.error {
  color: #a72d2d;
  font-weight: 700;
}

.auth-form,
.auth-actions {
  display: grid;
  gap: 12px;
}

.auth-form input {
  background: #fff;
  color: #1e3440;
}

.auth-form input:-webkit-autofill,
.auth-form input:-webkit-autofill:hover,
.auth-form input:-webkit-autofill:focus {
  -webkit-text-fill-color: #1e3440;
  box-shadow: 0 0 0 1000px #fff inset;
  caret-color: #1e3440;
}

.auth-mode-switch {
  background: #edf7fc;
  border: 1px solid #c8e0eb;
  border-radius: 8px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding: 4px;
}

.auth-mode-switch button {
  background: transparent;
  border-color: transparent;
  color: #38606f;
  justify-content: center;
}

.auth-mode-switch button.active {
  background: #fff;
  border-color: #bdd9e6;
  box-shadow: 0 3px 10px rgba(0, 79, 128, 0.1);
  color: #1e3440;
}

.auth-actions button {
  justify-content: center;
  min-height: 44px;
}

.auth-switch-copy {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  text-align: center;
}

.link-button {
  background: transparent;
  border: 0;
  color: #006ea8;
  min-height: auto;
  padding: 0;
  text-decoration: underline;
}

.home-view,
.flashcards-page,
.flashcard-review {
  display: grid;
  gap: 22px;
  margin: 0 auto;
  max-width: 1120px;
  padding: 28px;
}

.home-hero {
  align-items: center;
  background: #fff;
  border: 1px solid #c8e0eb;
  border-radius: 8px;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 280px);
  padding: 28px;
}

.home-hero h1,
.page-header h1,
.review-header h1 {
  font-size: 42px;
  letter-spacing: 0;
  line-height: 1.08;
  margin: 0;
}

.home-hero p,
.page-header p {
  color: #647985;
  font-size: 18px;
  margin: 10px 0 0;
}

.home-hero img {
  max-height: 240px;
  max-width: 100%;
  object-fit: contain;
}

.home-actions,
.page-header,
.review-header {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
}

.home-actions {
  justify-content: flex-start;
  margin-top: 22px;
}

.primary-action {
  align-items: center;
  background: #008bd2;
  border: 1px solid #008bd2;
  border-radius: 6px;
  color: #fff;
  display: inline-flex;
  min-height: 42px;
  padding: 0 14px;
  text-decoration: none;
}

.home-metrics,
.collection-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.home-metrics article,
.collection-card,
.study-card,
.empty-state {
  background: #fff;
  border: 1px solid #c8e0eb;
  border-radius: 8px;
  padding: 20px;
}

.home-metrics span {
  color: #008bd2;
  display: block;
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
}

.home-metrics strong,
.home-metrics small {
  display: block;
}

.home-metrics small,
.collection-card p {
  color: #647985;
  margin-top: 6px;
}

.collection-form {
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr) auto;
}

.collection-card {
  display: grid;
  gap: 12px;
}

.collection-card h2 {
  font-size: 22px;
  margin: 0;
}

.collection-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.collection-stats span {
  background: #eaf3f7;
  border-radius: 999px;
  color: #006ea8;
  padding: 4px 10px;
}

.study-card {
  display: grid;
  gap: 16px;
  min-height: min(620px, calc(100vh - 160px));
}

.study-card-toolbar {
  align-items: center;
  color: #647985;
  display: flex;
  justify-content: space-between;
}

.study-card-toolbar summary {
  cursor: pointer;
}

.study-card-face {
  align-items: center;
  background: #fff;
  border: 1px solid #bdd9e6;
  border-radius: 8px;
  color: #1e3440;
  display: grid;
  min-height: 300px;
  padding: 26px;
  text-align: left;
  width: 100%;
}

.study-card-face:hover {
  filter: none;
}

.markdown-block {
  font-size: 22px;
  line-height: 1.45;
  width: 100%;
}

.markdown-block p {
  margin: 0 0 12px;
}

.rating-row {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.rating-row button {
  justify-content: center;
  min-height: 48px;
}

.rating-row .again {
  background: #a72d2d;
  border-color: #a72d2d;
}

.rating-row .hard {
  background: #c56b00;
  border-color: #c56b00;
}

.rating-row .good {
  background: #008bd2;
  border-color: #008bd2;
}

.rating-row .easy {
  background: #006ea8;
  border-color: #006ea8;
}

.review-feedback {
  color: #006ea8;
  font-weight: 800;
  margin: 0;
  text-align: center;
}

.reveal-button {
  justify-content: center;
}

.nav a svg {
  color: currentColor;
  flex: 0 0 auto;
  stroke-width: 2.2;
}

.nav a span {
  min-width: 0;
}

.nav a.router-link-active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.sidebar-footer {
  align-self: center;
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 0 0 auto;
  margin-top: auto;
  width: 100%;
}

.mobile-nav {
  display: none;
}

.sidebar-theme-toggle {
  background: #006ca8;
  border: 0;
  border-radius: 999px;
  color: #dce7eb;
  display: inline-flex;
  gap: 14px;
  height: 48px;
  justify-content: center;
  min-height: 48px;
  padding: 0 10px;
  width: 100px;
}

.sidebar-version {
  color: rgba(238, 245, 247, 0.64);
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
}

.sidebar-user {
  display: grid;
  gap: 7px;
  width: 100%;
}

.sidebar-user label {
  color: rgba(238, 245, 247, 0.72);
  font-size: 12px;
}

.sidebar-user select {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
  min-height: 34px;
}

.sidebar-user option {
  color: #1e3440;
}

.sidebar-small-button {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.18);
  color: #eef5f7;
  justify-content: center;
  min-height: 32px;
  width: 100%;
}

.main-pane {
  grid-column: 2;
  min-width: 0;
  padding: 26px;
}

.page-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 22px;
}

.page-header h1 {
  font-size: 28px;
  letter-spacing: 0;
  line-height: 1.2;
  margin: 0;
}

.eyebrow {
  color: #667983;
  font-size: 13px;
  margin: 0 0 5px;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.field-hint {
  color: #6d828d;
  font-size: 12px;
  margin: 6px 0 0;
}

.metric-row {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 18px;
}

.metric,
.panel,
.side-panel section {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
}

.metric {
  padding: 14px 16px;
}

.metric span {
  color: #667983;
  display: block;
  font-size: 13px;
}

.metric strong {
  display: block;
  font-size: 25px;
  margin-top: 4px;
}

.work-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 280px 1fr;
}

.analytics-view {
  display: grid;
  gap: 18px;
}

.analytics-header {
  margin-bottom: 0;
}

.analytics-filters,
.analytics-panel {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  padding: 18px;
}

.analytics-filter-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 180px 180px minmax(0, 1fr);
}

.analytics-field {
  color: #536a75;
  display: grid;
  font-size: 13px;
  gap: 6px;
}

.analytics-tag-field {
  min-width: 0;
}

.analytics-filter-actions {
  align-items: center;
  display: flex;
  gap: 14px;
  justify-content: space-between;
  margin-top: 14px;
}

.analytics-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.analytics-preset.active {
  background: #e2f3fb;
  border-color: #a8d3e7;
  color: #006ea8;
}

.analytics-range-copy {
  color: #627985;
  font-size: 13px;
  margin: 12px 0 0;
}

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

.analytics-chart-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.8fr);
}

.analytics-chart-panel {
  min-width: 0;
}

.analytics-panel-copy {
  color: #6a808b;
  font-size: 13px;
  margin: 4px 0 0;
}

.analytics-panel h2 {
  margin-bottom: 0;
}

.analytics-chart {
  margin-top: 12px;
}

.analytics-svg {
  display: block;
  height: auto;
  overflow: visible;
  width: 100%;
}

.analytics-grid-line {
  stroke: #d9e8ef;
  stroke-width: 1;
}

.analytics-axis-label {
  fill: #78909c;
  font-size: 12px;
  text-anchor: middle;
}

.analytics-area {
  fill: rgba(0, 139, 210, 0.12);
}

.analytics-line {
  fill: none;
  stroke: #008bd2;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.analytics-point {
  fill: #008bd2;
  stroke: #fff;
  stroke-width: 2;
}

.analytics-bars {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.analytics-bar-row {
  display: grid;
  gap: 8px;
}

.analytics-bar-meta {
  align-items: baseline;
  display: flex;
  gap: 8px;
  justify-content: space-between;
}

.analytics-bar-meta strong {
  font-size: 14px;
}

.analytics-bar-meta span {
  color: #71858f;
  font-size: 12px;
}

.analytics-bar-track {
  background: #edf5f9;
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

.analytics-bar-fill {
  background: linear-gradient(90deg, #008bd2 0%, #36a5da 100%);
  border-radius: inherit;
  height: 100%;
  min-width: 10px;
}

.analytics-learning-panel {
  min-width: 0;
}

.analytics-learning-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.analytics-learning-category {
  background: #edf7fb;
  border: 1px solid #cfe5ef;
  border-radius: 999px;
  color: #45636f;
  font-size: 12px;
  padding: 4px 9px;
}

.analytics-learning-error,
.analytics-learning-more {
  color: #6a808b;
  font-size: 13px;
  margin: 12px 0 0;
}

.analytics-learning-error {
  color: #9a5a18;
}

.analytics-learning-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.analytics-learning-task {
  align-items: start;
  border-bottom: 1px solid #edf4f7;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(0, 1fr) auto;
  padding-bottom: 12px;
}

.analytics-learning-task:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.analytics-learning-task-body {
  min-width: 0;
}

.analytics-learning-task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 6px;
}

.analytics-learning-task h3 {
  font-size: 15px;
  margin: 0;
}

.analytics-learning-task p {
  color: #6a808b;
  font-size: 13px;
  margin: 4px 0 0;
}

.analytics-table-panel {
  min-width: 0;
}

.analytics-table {
  display: grid;
  gap: 0;
  margin-top: 12px;
}

.analytics-table-head,
.analytics-table-row {
  align-items: center;
  display: grid;
  gap: 14px;
  grid-template-columns: 150px minmax(180px, 1.4fr) minmax(160px, 1fr) 90px;
}

.analytics-table-head {
  border-bottom: 1px solid #dbe8ee;
  color: #70858f;
  font-size: 12px;
  padding: 0 0 10px;
  text-transform: uppercase;
}

.analytics-table-row {
  border-bottom: 1px solid #edf4f7;
  padding: 12px 0;
}

.analytics-table-row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.analytics-table-row strong {
  font-size: 14px;
}

.settings-view {
  max-width: 1120px;
}

.settings-grid {
  display: grid;
  gap: 16px;
}

.settings-panel {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  display: grid;
  gap: 14px;
  padding: 16px;
}

.settings-copy {
  color: #637883;
  margin: 4px 0 0;
}

.settings-field {
  color: #52656f;
  display: grid;
  font-size: 13px;
  gap: 6px;
}

.settings-inline-control {
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr) auto;
}

.settings-actions,
.settings-mode-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-ai-status {
  background: #f7fbfd;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  display: grid;
  gap: 5px;
  padding: 12px;
}

.settings-ai-status.compact {
  margin: 10px 0;
}

.settings-ai-status strong {
  color: #1f3744;
  font-size: 15px;
}

.settings-ai-status p,
.settings-ai-status span,
.settings-field-note {
  color: #637883;
  font-size: 13px;
  margin: 0;
}

.settings-test-ok {
  color: #24744a !important;
  font-weight: 700;
}

.settings-test-error {
  color: #9f2e2e !important;
  font-weight: 700;
}

.settings-ai-hint {
  color: #8a5a00 !important;
  font-weight: 700;
}

.settings-key-form {
  display: grid;
  gap: 12px;
}

.settings-confirm-remove {
  background: #fff7f7;
  border: 1px solid #efc5c5;
  border-radius: 6px;
  display: grid;
  gap: 8px;
  padding: 12px;
}

.settings-confirm-remove strong {
  color: #7f2525;
}

.settings-confirm-remove p {
  color: #7d4a4a;
  font-size: 13px;
  margin: 0;
}

.settings-status-pill {
  align-self: start;
  background: #f1f6f9;
  border: 1px solid #d4e6ef;
  border-radius: 999px;
  color: #617783;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 9px;
}

.settings-status-pill.active,
.settings-mode-row button.active {
  background: #e2f3fb;
  border-color: #9ed0e8;
  color: #006ea8;
}

.danger-secondary {
  color: #9f2e2e;
}

.about-view {
  max-width: 1120px;
}

.about-header {
  margin-bottom: 18px;
}

.about-hero {
  align-items: center;
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 8px;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 420px);
  margin-bottom: 18px;
  overflow: hidden;
  padding: 24px;
}

.about-kicker {
  color: #006ea8;
  font-size: 13px;
  font-weight: 700;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.about-hero-copy h2 {
  font-size: 30px;
  line-height: 1.2;
  margin: 0 0 14px;
}

.about-hero-copy p {
  color: #526a76;
  margin: 0 0 12px;
  max-width: 64ch;
}

.about-hero-art {
  align-items: center;
  display: flex;
  justify-content: center;
}

.about-hero-art img {
  display: block;
  max-height: 380px;
  max-width: 100%;
  object-fit: contain;
}

.about-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.about-panel {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 8px;
  padding: 18px;
}

.about-panel h3 {
  font-size: 16px;
  margin: 0 0 10px;
}

.about-panel p {
  color: #5a717c;
  margin: 0;
}

.help-view {
  max-width: 1120px;
}

.help-hero,
.help-item {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
}

.help-hero {
  margin-bottom: 18px;
  padding: 22px;
}

.help-hero h2,
.help-item h2 {
  color: #1e3440;
  font-size: 18px;
  margin: 0 0 8px;
}

.help-hero p,
.help-item p {
  color: #5d737e;
  margin: 0;
}

.help-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.help-item {
  padding: 18px;
}

.panel {
  padding: 16px;
}

.panel h2,
.side-panel h2 {
  font-size: 16px;
  margin: 0 0 12px;
}

.panel-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.panel-header h2,
.panel-header h3 {
  margin: 0;
}

.panel-header-actions {
  align-items: center;
  display: flex;
  gap: 8px;
  min-width: 0;
}

.compact-button {
  min-height: 32px;
  padding: 0 10px;
}

.compact-select {
  min-height: 32px;
  min-width: 0;
  padding: 5px 8px;
  width: auto;
}

.inline-form {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 40px;
  margin-bottom: 12px;
}

.inline-form button {
  justify-content: center;
  padding: 0;
}

.folder-row,
.attachment-row {
  background: transparent;
  border: 0;
  color: #1e3440;
  justify-content: flex-start;
  margin-top: 4px;
  width: 100%;
}

.attachment-row {
  align-items: flex-start;
  gap: 8px;
  min-height: 44px;
  padding: 8px 10px;
  text-align: left;
}

.attachment-row svg {
  flex: 0 0 auto;
  margin-top: 2px;
}

.attachment-row-meta {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.attachment-row-meta span {
  overflow-wrap: anywhere;
}

.attachment-row-meta small {
  color: #6d828d;
  font-size: 12px;
}

.folder-row.active {
  background: #e2f3fb;
  color: #006ea8;
}

.folder-row.drop-target {
  background: #d5ecf8;
  box-shadow: inset 0 0 0 1px #62b8df;
  color: #006ea8;
}

.folder-drop-hint {
  color: #6c8794;
  font-size: 13px;
  margin: 12px 0 0;
}

.folder-actions-divider {
  background: #dce8ee;
  height: 1px;
  margin: 16px 0 14px;
}

.trash-section h3 {
  font-size: 14px;
  margin: 0;
}

.trash-section.drop-target {
  background: #eef8fc;
  border: 1px dashed #62b8df;
  border-radius: 6px;
  margin: -8px;
  padding: 8px;
}

.trash-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.trash-row {
  align-items: center;
  background: #f8fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  display: flex;
  gap: 10px;
  justify-content: space-between;
  padding: 10px 12px;
}

.trash-row .secondary {
  min-height: 32px;
}

.trash-row-meta {
  min-width: 0;
}

.trash-row-meta strong,
.trash-row-meta span {
  display: block;
}

.trash-row-meta span {
  color: #71858f;
  font-size: 12px;
  margin-top: 2px;
}

.context-menu-backdrop {
  inset: 0;
  position: fixed;
  z-index: 1500;
}

.context-menu {
  background: #fff;
  border: 1px solid #d6e4ec;
  border-radius: 6px;
  box-shadow: 0 12px 28px rgba(27, 56, 73, 0.18);
  display: grid;
  min-width: 196px;
  overflow: hidden;
  position: fixed;
  z-index: 1510;
}

.context-menu button {
  background: transparent;
  border: 0;
  border-radius: 0;
  color: #213843;
  justify-content: flex-start;
  min-height: 40px;
  padding: 0 12px;
}

.context-menu button:hover {
  background: #eef6fa;
  filter: none;
}

.context-menu-danger {
  color: #9d2d2d !important;
}

.dialog-backdrop {
  align-items: center;
  background: rgba(28, 44, 52, 0.36);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 20px;
  position: fixed;
  z-index: 1600;
}

.dialog-card {
  background: #fff;
  border: 1px solid #d5e6ef;
  border-radius: 6px;
  box-shadow: 0 18px 42px rgba(22, 50, 64, 0.22);
  max-width: 460px;
  padding: 20px;
  width: min(100%, 460px);
}

.dialog-card-wide {
  max-width: 620px;
  width: min(100%, 620px);
}

.dialog-card h2 {
  font-size: 18px;
  margin: 0 0 10px;
}

.dialog-copy {
  color: #627781;
  margin: 0 0 14px;
}

.dialog-form,
.dialog-field {
  display: grid;
  gap: 8px;
}

.dialog-field {
  color: #52656f;
  font-size: 13px;
}

.dialog-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 16px;
}

.modal-backdrop {
  align-items: center;
  background: rgba(28, 44, 52, 0.38);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 20px;
  position: fixed;
  z-index: 1800;
}

.modal-card {
  background: #fff;
  border: 1px solid #d5e6ef;
  border-radius: 8px;
  box-shadow: 0 22px 54px rgba(22, 50, 64, 0.24);
  max-width: 500px;
  padding: 22px;
  width: min(100%, 500px);
}

.modal-card h2 {
  font-size: 20px;
  margin: 0 0 10px;
}

.modal-card p {
  color: #5b717b;
  margin: 0 0 16px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 18px;
}

.form-field {
  color: #52656f;
  display: grid;
  font-size: 13px;
  gap: 8px;
}

.onboarding-card {
  border-top: 4px solid #008bd2;
  text-align: center;
}

.onboarding-image {
  display: block;
  height: auto;
  margin: 0 auto 14px;
  max-width: min(220px, 70vw);
  object-fit: contain;
}

.onboarding-card .eyebrow,
.onboarding-card p {
  text-align: left;
}

.onboarding-card h2 {
  text-align: left;
}

.danger-button {
  background: #b83939;
  border-color: #b83939;
}

.create-exam-form {
  display: grid;
  gap: 10px;
  grid-template-columns: 1.2fr 180px 1fr max-content;
  margin-bottom: 16px;
}

.exam-list {
  display: grid;
  gap: 8px;
}

.exam-row {
  align-items: center;
  background: #fbfdfe;
  border: 1px solid #dcecf3;
  border-radius: 6px;
  color: inherit;
  display: grid;
  gap: 12px;
  grid-template-columns: 28px 1fr 240px 50px;
  padding: 12px;
  text-decoration: none;
}

.exam-row.dragging {
  opacity: 0.48;
}

.exam-row span {
  color: #667983;
  display: block;
  font-size: 13px;
}

.exam-summary {
  min-width: 0;
}

.exam-dates {
  column-gap: 12px;
  display: flex;
  flex-wrap: wrap;
  margin-top: 4px;
  row-gap: 2px;
}

.exam-dates span {
  font-size: 12px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.tag {
  background: #e2f3fb;
  border-radius: 999px;
  color: #006ea8 !important;
  padding: 3px 8px;
}

.score {
  color: #1e3440 !important;
  font-size: 18px !important;
  font-weight: 700;
  text-align: right;
}

.empty-state {
  color: #7a8b93;
  font-size: 14px;
  margin: 10px 0 0;
}

.action-error {
  background: #fff4f4;
  border: 1px solid #f0b8b8;
  border-radius: 6px;
  color: #8a1f1f;
  margin: 0 0 16px;
  padding: 10px 12px;
}

.action-notice {
  background: #f0fbf5;
  border: 1px solid #b9e5cb;
  border-radius: 6px;
  color: #23663b;
  margin: 0 0 16px;
  padding: 10px 12px;
}

.title-input {
  background: transparent;
  border: 0;
  font-size: 28px;
  font-weight: 700;
  min-height: 0;
  padding: 0;
}

.exam-header-meta {
  align-items: center;
  color: #6b7f88;
  display: flex;
  flex-wrap: wrap;
  font-size: 13px;
  gap: 8px;
  margin-top: 8px;
}

.status-pill {
  background: #e2f3fb;
  border: 1px solid #b7dced;
  border-radius: 999px;
  color: #006ea8;
  font-weight: 700;
  padding: 3px 9px;
}

.exam-layout,
.correction-layout {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1fr) 340px;
}

.writing-pane,
.submission-paper {
  min-width: 0;
  position: relative;
}

.side-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.side-panel section {
  padding: 14px;
}

.side-panel label,
.side-field {
  color: #52656f;
  display: grid;
  gap: 6px;
  font-size: 13px;
  margin-top: 10px;
}

.exam-status-grid {
  display: grid;
  gap: 8px 12px;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
}

.exam-status-grid span {
  color: #6d828d;
  font-size: 13px;
}

.exam-status-grid strong {
  color: #253c48;
  font-size: 13px;
  font-weight: 700;
  min-width: 0;
}

.submission-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.submission-row {
  align-items: center;
  background: #f8fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  display: flex;
  gap: 10px;
  min-width: 0;
  padding: 10px;
}

.submission-row-icon {
  align-items: center;
  background: #e2f3fb;
  border-radius: 999px;
  color: #006ea8;
  display: inline-flex;
  flex: 0 0 auto;
  height: 32px;
  justify-content: center;
  width: 32px;
}

.submission-row-meta {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.submission-row-meta strong {
  color: #253c48;
  font-size: 13px;
}

.submission-row-meta span {
  color: #6d828d;
  font-size: 12px;
}

.submission-row-action {
  align-items: center;
  background: #fff;
  border: 1px solid #b9dcea;
  border-radius: 6px;
  color: #006ea8;
  display: inline-flex;
  flex: 0 0 auto;
  font-size: 13px;
  gap: 6px;
  margin-left: auto;
  min-height: 32px;
  padding: 0 10px;
  text-decoration: none;
}

.submission-row-action:hover {
  background: #eef8fc;
}

.editor-frame {
  background: #e4eef4;
  border: 1px solid #c7dce8;
  border-radius: 6px;
  min-height: calc(100vh - 150px);
  overflow: hidden;
}

.editor-toolbar {
  align-items: center;
  background: #fff;
  border-bottom: 1px solid #c7dce8;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px;
}

.editor-toolbar button {
  background: #fff;
  border-color: transparent;
  color: #7a929e;
  justify-content: center;
  min-height: 34px;
  min-width: 34px;
  padding: 0 8px;
}

.editor-toolbar button.active {
  background: #e2f3fb;
  border-color: #a6d3e9;
  color: #006ea8;
}

.editor-toolbar select {
  min-height: 34px;
  width: 86px;
}

.toolbar-divider {
  background: #d6e0e4;
  height: 26px;
  margin: 0 4px;
  width: 1px;
}

.autosave-state {
  color: #6a7c85;
  font-size: 13px;
  margin-left: auto;
}

.editor-content {
  display: flex;
  justify-content: center;
  padding: 26px;
}

.exam-editor-surface {
  background: #fff;
  color: #000;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12pt;
  line-height: 1.45;
  min-height: 720px;
  outline: none;
  padding: 42px 58px;
  width: min(880px, 100%);
}

.exam-editor-surface p {
  margin: 0 0 10pt;
}

.exam-editor-surface mark,
.readonly-document mark {
  background: #ffe066;
}

.readonly-document::selection,
.readonly-document *::selection {
  background: #006eb6;
  color: #fff;
}

::highlight(inline-comment-hover) {
  background: rgba(255, 202, 58, 0.55);
  color: inherit;
}

.focus-view {
  background: #f2f7fa;
  min-height: 100vh;
}

.exam-session-header {
  align-items: center;
  background: #fff;
  border-bottom: 1px solid #e2eff5;
  display: flex;
  gap: 24px;
  height: 81px;
  justify-content: space-between;
  padding: 0 17px 0 22px;
}

.session-identity {
  align-items: center;
  color: #253c48;
  display: flex;
  font-size: 26px;
  gap: 21px;
  line-height: 32px;
  min-width: 0;
}

.session-identity img {
  flex: 0 0 auto;
  height: 52px;
  object-fit: contain;
  width: 52px;
}

.session-identity span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-actions {
  align-items: center;
  display: flex;
  flex: 0 0 auto;
  gap: 16px;
}

.theme-toggle {
  align-items: center;
  background: #e4f2f8;
  border: 0;
  border-radius: 24px;
  color: #78909c;
  display: inline-flex;
  gap: 12px;
  height: 42px;
  justify-content: center;
  min-height: 42px;
  padding: 0;
  width: 82px;
}

.theme-toggle.active {
  background: #26343b;
  color: #e6f0f4;
}

.session-outline {
  background: #fff;
  border: 1px solid #008bd2;
  border-radius: 0;
  color: #006ea8;
  font-size: 16px;
  font-weight: 400;
  height: 40px;
  justify-content: center;
  min-height: 40px;
  min-width: 144px;
  padding: 0 21px;
  text-decoration: none;
}

.session-back {
  min-width: 112px;
}

.focus-view .exam-layout {
  display: block;
}

.focus-view .writing-pane {
  display: flex;
  justify-content: center;
  padding: 24px 0 0;
}

.focus-view .editor-frame {
  background: #fff;
  border: 1px solid #e2eff5;
  border-radius: 2px;
  min-height: min(688px, calc(100vh - 105px));
  overflow: hidden;
  width: min(928px, calc(100vw - 48px));
}

.focus-view .editor-toolbar {
  border-bottom: 1px solid #b0bec5;
  flex-wrap: nowrap;
  gap: 2px;
  height: 57px;
  padding: 9px 26px;
}

.focus-view .editor-toolbar button {
  color: #7d929c;
  height: 36px;
  min-width: 32px;
  padding: 0 6px;
}

.focus-view .editor-toolbar select {
  border-color: #b0bec5;
  border-radius: 3px;
  color: #2f3f46;
  height: 34px;
  min-height: 34px;
  padding: 4px 24px 4px 10px;
  width: 78px;
}

.focus-view .toolbar-divider {
  background: #d8e0e4;
  height: 28px;
  margin: 0 6px;
}

.focus-view .autosave-state {
  display: none;
}

.focus-editor .editor-content {
  display: block;
  padding: 0;
}

.focus-editor .exam-editor-surface {
  border: 0;
  box-shadow: none;
  min-height: 630px;
  padding: 0 28px 28px;
  width: 100%;
}

.readonly-document {
  background: #fff;
  border: 1px solid #d7e0e4;
  border-radius: 8px;
  color: #000;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12pt;
  line-height: 1.45;
  min-height: 760px;
  padding: 46px 64px;
}

.correction-view {
  display: grid;
  gap: 18px;
  grid-template-columns: 300px minmax(0, 1fr);
  height: calc(100vh - 52px);
  min-height: 620px;
  overflow: hidden;
}

.correction-list-panel {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.correction-list-header {
  border-bottom: 1px solid #e0edf3;
  padding: 16px;
}

.correction-list-header h1 {
  font-size: 20px;
  margin: 0;
}

.correction-submission-list {
  display: grid;
  gap: 8px;
  min-height: 0;
  overflow-y: auto;
  padding: 12px;
}

.correction-submission-item {
  background: #f8fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  color: inherit;
  display: grid;
  gap: 4px;
  padding: 11px 12px;
  text-decoration: none;
}

.correction-submission-item.graded {
  background: #f7fcf9;
  border-color: #b8dec4;
}

.correction-submission-item.active {
  background: #e2f3fb;
  border-color: #8cc9e4;
}

.correction-submission-item.graded.active {
  background: #e4f7ea;
  border-color: #6ebf86;
}

.correction-submission-title {
  align-items: center;
  display: flex;
  gap: 8px;
  justify-content: space-between;
  min-width: 0;
}

.correction-submission-title svg {
  color: #1c9b4a;
  flex: 0 0 auto;
}

.correction-submission-item strong {
  font-size: 14px;
  min-width: 0;
}

.correction-submission-item span,
.correction-submission-item em {
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  font-size: 12px;
  font-style: normal;
}

.correction-submission-status {
  align-items: center;
  color: #7a8b94;
  display: inline-flex;
  font-size: 12px;
  gap: 5px;
}

.correction-submission-status svg {
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  flex: 0 0 auto;
}

.correction-submission-status.done {
  color: #1b8742;
  font-weight: 700;
}

.correction-submission-status.done svg {
  color: #1c9b4a;
}

.correction-submission-meta {
  align-items: center;
  display: flex;
  gap: 6px;
  justify-content: space-between;
}

.correction-submission-meta small {
  background: #e8f4fa;
  border-radius: 999px;
  color: #006ea8;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
}

.correction-detail-scroll {
  min-height: 0;
  overflow-y: auto;
  padding-right: 4px;
}

.correction-detail-header {
  margin-bottom: 16px;
}

.correction-workspace {
  display: grid;
  gap: 16px 14px;
  grid-template-columns: minmax(0, 1fr) 280px;
}

.correction-assessment-panel {
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  display: grid;
  gap: 16px;
  grid-column: 1;
  grid-template-columns: minmax(0, 1fr);
  padding: 16px;
}

.correction-assessment-panel h2 {
  font-size: 16px;
  margin: 0 0 12px;
}

.correction-assessment-panel h3 {
  color: #253c48;
  font-size: 14px;
  margin: 0 0 8px;
}

.correction-assessment-panel label {
  color: #52656f;
  display: grid;
  gap: 6px;
  font-size: 13px;
  margin-top: 10px;
}

.correction-score-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: 140px minmax(0, 1fr);
}

.correction-score-grid label {
  margin-top: 0;
}

.correction-score-grid .field-hint {
  align-self: end;
  margin-bottom: 8px;
}

.ai-settings-panel,
.ai-draft-panel {
  grid-column: 1 / -1;
}

.ai-draft-score {
  align-items: baseline;
  display: flex;
  gap: 6px;
}

.ai-draft-score strong {
  color: #12394c;
  font-size: 24px;
  line-height: 1;
}

.ai-draft-score span {
  color: #52656f;
  font-size: 13px;
  font-weight: 700;
}

.ai-draft-section {
  margin-top: 14px;
}

.ai-draft-section p,
.ai-draft-two-column p {
  color: #52656f;
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}

.ai-draft-two-column {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 14px;
}

.ai-draft-two-column ul,
.ai-suggestion-list,
.ai-inline-comment-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.ai-draft-two-column li,
.ai-suggestion-list li,
.ai-inline-comment-list li {
  color: #52656f;
}

.ai-suggestion-list div {
  align-items: baseline;
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  flex-wrap: wrap;
  gap: 6px;
}

.ai-suggestion-list strong {
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}

.ai-suggestion-list span {
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}

.ai-suggestion-list p {
  margin-top: 3px;
}

.ai-inline-comment-list blockquote {
  border-left: 3px solid #8cc9e4;
  color: #52656f;
  margin: 0 0 4px;
  padding-left: 8px;
}

.ai-inline-comment-list p {
  margin: 0;
}

.correction-document-grid {
  align-items: start;
  display: grid;
  gap: 14px;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1fr) 280px;
}

.correction-empty-detail {
  align-items: center;
  background: #fff;
  border: 1px solid #d4e6ef;
  border-radius: 6px;
  color: #627781;
  display: grid;
  min-height: 280px;
  place-content: center;
  text-align: center;
}

.correction-start-panel {
  display: grid;
  gap: 14px;
  justify-items: center;
  max-width: 480px;
  padding: 32px;
}

.correction-empty-detail h2 {
  color: #253c48;
  font-size: 26px;
  margin: 0;
}

.correction-empty-detail p {
  margin: 0;
}

.correction-start-stats {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(112px, 1fr));
  margin-top: 4px;
  width: min(100%, 280px);
}

.correction-start-stats div {
  background: #f7fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  display: grid;
  gap: 3px;
  padding: 12px;
}

.correction-start-stats strong {
  color: #12394c;
  font-size: 28px;
  line-height: 1;
}

.correction-start-stats span {
  color: #6d828d;
  font-size: 12px;
  font-weight: 700;
}

.correction-start-action {
  align-items: center;
  background: #007fbe;
  border-radius: 6px;
  color: #fff;
  display: inline-flex;
  font-size: 14px;
  font-weight: 700;
  min-height: 40px;
  padding: 0 14px;
  text-decoration: none;
}

.readonly-document p {
  margin: 0 0 10pt;
}

.selection-preview {
  background: #f8fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  color: #52656f;
  display: grid;
  gap: 6px;
  margin: 0 0 10px;
  min-height: 72px;
  padding: 10px;
}

.selection-preview span {
  color: #006ea8;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.selection-preview p {
  margin: 0;
}

.selection-preview.empty {
  border-style: dashed;
  color: #70858f;
}

.selection-comment-popover {
  background: #fff;
  border: 1px solid #b7dced;
  border-radius: 8px;
  box-shadow: 0 16px 34px rgba(22, 50, 64, 0.22);
  display: grid;
  gap: 10px;
  max-width: min(420px, calc(100vw - 64px));
  padding: 12px;
  position: absolute;
  transform: translate(-50%, -100%);
  width: 380px;
  z-index: 20;
}

.selection-comment-popover::after {
  background: #fff;
  border-bottom: 1px solid #b7dced;
  border-right: 1px solid #b7dced;
  bottom: -7px;
  content: "";
  height: 12px;
  left: 50%;
  position: absolute;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
}

.selection-comment-popover .selection-preview {
  margin: 0;
  max-height: 96px;
  min-height: 0;
  overflow: auto;
}

.comment-input-label {
  margin-top: 0 !important;
}

.comment-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 10px;
}

.comment-actions button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.full-width {
  justify-content: center;
  margin-top: 8px;
  width: 100%;
}

.comment-card {
  background: #f8fbfd;
  border: 1px solid #d9e9f1;
  border-radius: 6px;
  display: grid;
  gap: 8px;
  padding: 10px;
}

.document-comment-rail {
  min-height: 760px;
  position: relative;
}

.rail-comment-hint {
  background: #fff;
  border: 1px dashed #d9e9f1;
  border-radius: 8px;
  color: #627781;
  margin-top: calc(100vh - 250px);
  padding: 12px;
  position: sticky;
  bottom: 16px;
  z-index: 10;
}

.rail-comment-hint strong {
  color: #006ea8;
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
}

.rail-comment-hint p {
  font-size: 13px;
  margin: 0;
}

.margin-comment-card {
  left: 0;
  position: absolute;
  right: 0;
}

.margin-empty-state {
  background: #f8fbfd;
  border: 1px dashed #d9e9f1;
  border-radius: 6px;
  margin: 0;
  padding: 12px;
}

.comment-card.active {
  background: #eef8fc;
  border-color: #8cc9e4;
  box-shadow: 0 0 0 2px rgba(0, 139, 210, 0.1);
  transform: translateX(-6px);
}

.side-panel .comment-card + .comment-card {
  margin-top: 8px;
}

.comment-card blockquote {
  border-left: 3px solid #8cc9e4;
  color: #52656f;
  font-size: 13px;
  margin: 0;
  padding-left: 9px;
}

.comment-card p {
  color: #253c48;
  margin: 0;
}

.comment-card span {
  color: #7a8b93;
  font-size: 12px;
}

:root[data-theme='dark'] {
  background: #07151c;
  color: #d9e5ea;
}

:root[data-theme='dark'] body {
  background: #07151c;
  color: #d9e5ea;
}

:root[data-theme='dark'] .app-shell,
:root[data-theme='dark'] .main-pane {
  background: #07151c;
}

:root[data-theme='dark'] .app-shell.exam-shell,
:root[data-theme='dark'] .exam-shell .main-pane,
:root[data-theme='dark'] .focus-view {
  background: #17242c;
}

:root[data-theme='dark'] .sidebar {
  background: #031925;
  color: #e5eef2;
}

:root[data-theme='dark'] .nav a {
  color: #cbd9de;
}

:root[data-theme='dark'] .nav a.router-link-active {
  background: rgba(121, 185, 218, 0.2);
  color: #f4fbff;
}

:root[data-theme='dark'] button,
:root[data-theme='dark'] .secondary {
  background: #0079b8;
  border-color: #0079b8;
  color: #f2f8fa;
}

:root[data-theme='dark'] button.secondary,
:root[data-theme='dark'] .secondary {
  background: #152126;
  border-color: #31424a;
  color: #d9e5ea;
}

:root[data-theme='dark'] input,
:root[data-theme='dark'] select,
:root[data-theme='dark'] textarea,
:root[data-theme='dark'] .tag-input {
  background: #111b20;
  border-color: #31424a;
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}

:root[data-theme='dark'] input::placeholder,
:root[data-theme='dark'] textarea::placeholder,
:root[data-theme='dark'] .tag-input-field::placeholder {
  color: #82939b;
}

:root[data-theme='dark'] .auth-gate {
  background:
    radial-gradient(circle at 20% 10%, rgba(0, 139, 210, 0.12), transparent 28%),
    #f2f7fa;
}

:root[data-theme='dark'] .auth-panel {
  background: #fff;
  border-color: #c8e0eb;
  color: #1e3440;
}

:root[data-theme='dark'] .auth-panel h1 {
  color: #1e3440;
}

:root[data-theme='dark'] .auth-copy,
:root[data-theme='dark'] .auth-message,
:root[data-theme='dark'] .auth-action-hint,
:root[data-theme='dark'] .auth-switch-copy {
  color: #647985;
}

:root[data-theme='dark'] .auth-message.error {
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}

:root[data-theme='dark'] .auth-form input {
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}

:root[data-theme='dark'] .auth-action-hint,
:root[data-theme='dark'] .auth-mode-switch {
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}

:root[data-theme='dark'] .auth-mode-switch button {
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  color: #38606f;
}

:root[data-theme='dark'] .auth-mode-switch button.active {
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}

:root[data-theme='dark'] .link-button {
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  color: #006ea8;
}

:root[data-theme='dark'] .eyebrow,
:root[data-theme='dark'] .metric span,
:root[data-theme='dark'] .field-hint,
:root[data-theme='dark'] .exam-row span,
:root[data-theme='dark'] .empty-state,
:root[data-theme='dark'] .autosave-state {
  color: #93a6ae;
}

:root[data-theme='dark'] .metric,
:root[data-theme='dark'] .home-hero,
:root[data-theme='dark'] .home-metrics article,
:root[data-theme='dark'] .analytics-filters,
:root[data-theme='dark'] .analytics-panel,
:root[data-theme='dark'] .collection-card,
:root[data-theme='dark'] .study-card,
:root[data-theme='dark'] .empty-state,
:root[data-theme='dark'] .panel,
:root[data-theme='dark'] .settings-panel,
:root[data-theme='dark'] .about-panel,
:root[data-theme='dark'] .side-panel section,
:root[data-theme='dark'] .exam-row,
:root[data-theme='dark'] .readonly-document {
  background: #152126;
  border-color: #2d3b42;
  color: #d9e5ea;
}

:root[data-theme='dark'] .home-hero h1,
:root[data-theme='dark'] .home-metrics strong,
:root[data-theme='dark'] .collection-card h2,
:root[data-theme='dark'] .study-card h2 {
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}

:root[data-theme='dark'] .home-hero p,
:root[data-theme='dark'] .home-metrics small,
:root[data-theme='dark'] .collection-card p {
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:root[data-theme='dark'] .home-metrics span {
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:root[data-theme='dark'] .about-hero {
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:root[data-theme='dark'] .about-kicker {
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}

:root[data-theme='dark'] .about-hero-copy p,
:root[data-theme='dark'] .about-panel p {
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:root[data-theme='dark'] .exam-row {
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:root[data-theme='dark'] .folder-row,
:root[data-theme='dark'] .attachment-row {
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:root[data-theme='dark'] .attachment-row-meta small {
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:root[data-theme='dark'] .folder-row.active {
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}

:root[data-theme='dark'] .tag {
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}

:root[data-theme='dark'] .analytics-field,
:root[data-theme='dark'] .analytics-range-copy,
:root[data-theme='dark'] .analytics-panel-copy,
:root[data-theme='dark'] .analytics-bar-meta span,
:root[data-theme='dark'] .analytics-learning-task p,
:root[data-theme='dark'] .analytics-learning-more,
:root[data-theme='dark'] .settings-copy,
:root[data-theme='dark'] .settings-field,
:root[data-theme='dark'] .analytics-table-head {
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:root[data-theme='dark'] .settings-status-pill {
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:root[data-theme='dark'] .settings-ai-status {
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:root[data-theme='dark'] .settings-ai-status strong {
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:root[data-theme='dark'] .settings-ai-status p,
:root[data-theme='dark'] .settings-ai-status span,
:root[data-theme='dark'] .settings-field-note {
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:root[data-theme='dark'] .settings-test-ok {
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:root[data-theme='dark'] .settings-test-error {
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:root[data-theme='dark'] .settings-ai-hint {
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}

:root[data-theme='dark'] .settings-confirm-remove {
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:root[data-theme='dark'] .settings-confirm-remove strong {
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:root[data-theme='dark'] .settings-confirm-remove p {
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:root[data-theme='dark'] .settings-status-pill.active,
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:root[data-theme='dark'] .analytics-learning-error {
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:root[data-theme='dark'] .analytics-learning-category {
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:root[data-theme='dark'] .analytics-grid-line,
:root[data-theme='dark'] .analytics-table-head,
:root[data-theme='dark'] .analytics-learning-task,
:root[data-theme='dark'] .analytics-table-row {
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:root[data-theme='dark'] .analytics-area {
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:root[data-theme='dark'] .analytics-line,
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:root[data-theme='dark'] .context-menu {
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:root[data-theme='dark'] .trash-section.drop-target {
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:root[data-theme='dark'] .dialog-card {
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}

:root[data-theme='dark'] .dialog-copy,
:root[data-theme='dark'] .dialog-field {
  color: #b1c0c6;
}

:root[data-theme='dark'] .modal-backdrop {
  background: rgba(3, 9, 12, 0.62);
}

:root[data-theme='dark'] .modal-card,
:root[data-theme='dark'] .help-hero,
:root[data-theme='dark'] .help-item {
  background: #152126;
  border-color: #31424a;
}

:root[data-theme='dark'] .modal-card p,
:root[data-theme='dark'] .form-field,
:root[data-theme='dark'] .help-hero p,
:root[data-theme='dark'] .help-item p {
  color: #b1c0c6;
}

:root[data-theme='dark'] .help-hero h2,
:root[data-theme='dark'] .help-item h2 {
  color: #f1f7f9;
}

:root[data-theme='dark'] .danger-button {
  background: #c75050;
  border-color: #c75050;
}

:root[data-theme='dark'] .score {
  color: #e8f2f5 !important;
}

:root[data-theme='dark'] .side-panel label,
:root[data-theme='dark'] .side-field {
  color: #b1c0c6;
}

:root[data-theme='dark'] .action-error {
  background: #35191b;
  border-color: #6d3438;
  color: #ffc6c6;
}

:root[data-theme='dark'] .action-notice {
  background: #10291b;
  border-color: #2c6b42;
  color: #b9efc9;
}

:root[data-theme='dark'] .title-input {
  color: #e8f2f5;
}

:root[data-theme='dark'] .exam-header-meta {
  color: #a4b5bd;
}

:root[data-theme='dark'] .status-pill {
  background: #12364a;
  border-color: #2780aa;
  color: #b8eaff;
}

:root[data-theme='dark'] .exam-status-grid span {
  color: #9dafb7;
}

:root[data-theme='dark'] .exam-status-grid strong {
  color: #e8f2f5;
}

:root[data-theme='dark'] .submission-row {
  background: #111b20;
  border-color: #304048;
}

:root[data-theme='dark'] .submission-row-icon {
  background: #12364a;
  color: #b8eaff;
}

:root[data-theme='dark'] .submission-row-meta strong {
  color: #e8f2f5;
}

:root[data-theme='dark'] .submission-row-meta span {
  color: #9dafb7;
}

:root[data-theme='dark'] .submission-row-action {
  background: #152126;
  border-color: #31424a;
  color: #b8eaff;
}

:root[data-theme='dark'] .submission-row-action:hover {
  background: #1b313c;
}

:root[data-theme='dark'] .editor-frame {
  background: #11191d;
  border-color: #2d3b42;
}

:root[data-theme='dark'] .editor-toolbar {
  background: #10181d;
  border-bottom-color: #304048;
}

:root[data-theme='dark'] .editor-toolbar button {
  background: transparent;
  color: #9badb5;
}

:root[data-theme='dark'] .editor-toolbar button.active {
  background: #12364a;
  border-color: #2780aa;
  color: #b8eaff;
}

:root[data-theme='dark'] .editor-toolbar select {
  background: #111b20;
  border-color: #3a4b53;
  color: #e5eef2;
}

:root[data-theme='dark'] .toolbar-divider {
  background: #304048;
}

:root[data-theme='dark'] .editor-content {
  background: #11191d;
}

:root[data-theme='dark'] .exam-editor-surface,
:root[data-theme='dark'] .readonly-document {
  background: #15181b;
  color: #f0f4f6;
  caret-color: #f0f4f6;
}

:root[data-theme='dark'] .correction-list-panel,
:root[data-theme='dark'] .correction-assessment-panel,
:root[data-theme='dark'] .correction-empty-detail {
  background: #152126;
  border-color: #31424a;
}

:root[data-theme='dark'] .correction-list-header {
  border-bottom-color: #31424a;
}

:root[data-theme='dark'] .correction-submission-item {
  background: #111b20;
  border-color: #304048;
}

:root[data-theme='dark'] .correction-submission-item.graded {
  background: #102219;
  border-color: #295d3a;
}

:root[data-theme='dark'] .correction-submission-item.active {
  background: #12364a;
  border-color: #2780aa;
}

:root[data-theme='dark'] .correction-submission-item.graded.active {
  background: #123a22;
  border-color: #33a65f;
}

:root[data-theme='dark'] .correction-submission-item span,
:root[data-theme='dark'] .correction-submission-item em,
:root[data-theme='dark'] .correction-empty-detail {
  color: #aebec5;
}

:root[data-theme='dark'] .correction-submission-status.done {
  color: #80d99b;
}

:root[data-theme='dark'] .correction-submission-meta small {
  background: #12364a;
  color: #b8eaff;
}

:root[data-theme='dark'] .correction-start-stats div {
  background: #111b20;
  border-color: #304048;
}

:root[data-theme='dark'] .correction-start-stats strong {
  color: #e8f2f5;
}

:root[data-theme='dark'] .correction-start-stats span {
  color: #aebec5;
}

:root[data-theme='dark'] .correction-empty-detail h2 {
  color: #e8f2f5;
}

:root[data-theme='dark'] .correction-assessment-panel label {
  color: #b1c0c6;
}

:root[data-theme='dark'] .correction-assessment-panel h3,
:root[data-theme='dark'] .ai-draft-score strong,
:root[data-theme='dark'] .ai-suggestion-list strong {
  color: #e8f2f5;
}

:root[data-theme='dark'] .ai-draft-score span,
:root[data-theme='dark'] .ai-draft-section p,
:root[data-theme='dark'] .ai-draft-two-column p,
:root[data-theme='dark'] .ai-draft-two-column li,
:root[data-theme='dark'] .ai-suggestion-list li,
:root[data-theme='dark'] .ai-inline-comment-list li,
:root[data-theme='dark'] .ai-inline-comment-list blockquote {
  color: #b1c0c6;
}

:root[data-theme='dark'] .ai-suggestion-list span {
  color: #93a6ae;
}

:root[data-theme='dark'] .exam-editor-surface mark,
:root[data-theme='dark'] .readonly-document mark {
  background: #6a5d2b;
  color: #fff5bf;
}

:root[data-theme='dark'] .exam-session-header {
  background: #102b3a;
  border-bottom-color: #244453;
}

:root[data-theme='dark'] .session-identity {
  color: #f1f6f8;
}

:root[data-theme='dark'] .theme-toggle {
  background: #18242a;
  color: #9db0b8;
}

:root[data-theme='dark'] .theme-toggle.active {
  background: #0f181d;
  color: #f1f6f8;
}

:root[data-theme='dark'] .session-outline {
  background: transparent;
  border-color: #57bdf1;
  color: #91d9ff;
}

:root[data-theme='dark'] .focus-view .editor-frame {
  background: #15181b;
  border-color: #344249;
}

:root[data-theme='dark'] .focus-view .editor-toolbar {
  border-bottom-color: #48565d;
}

:root[data-theme='dark'] .selection-preview {
  background: #111b20;
  border-color: #31424a;
  color: #b1c0c6;
}

:root[data-theme='dark'] .selection-preview span {
  color: #b8eaff;
}

:root[data-theme='dark'] .comment-card {
  background: #111b20;
  border-color: #304048;
}

:root[data-theme='dark'] .comment-card.active {
  background: #12364a;
  border-color: #2780aa;
  box-shadow: 0 0 0 2px rgba(39, 128, 170, 0.22);
}

:root[data-theme='dark'] .comment-card blockquote {
  border-left-color: #2780aa;
  color: #b1c0c6;
}

:root[data-theme='dark'] .comment-card p {
  color: #e8f2f5;
}

:root[data-theme='dark'] .comment-card span {
  color: #9dafb7;
}

:root[data-theme='dark'] .selection-comment-popover {
  background: #152126;
  border-color: #2780aa;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
}

:root[data-theme='dark'] .selection-comment-popover::after {
  background: #152126;
  border-bottom-color: #2780aa;
  border-right-color: #2780aa;
}

:root[data-theme='dark'] .rail-comment-hint {
  background: #152126;
  border-color: #304048;
  color: #aebec5;
}

:root[data-theme='dark'] .rail-comment-hint strong {
  color: #b8eaff;
}

:root[data-theme='dark'] .margin-empty-state {
  background: #111b20;
  border-color: #304048;
}

.focus-view {
  background: #f6f8f9;
  min-height: 100vh;
}

.exam-shell .focus-view {
  background: #f6f8f9;
}

.exam-session-header {
  background: #fff;
  border-bottom: 1px solid #e6ecef;
  height: 86px;
  padding: 0 14px;
}

.session-identity {
  color: #263238;
  font-size: 30px;
  font-weight: 400;
  gap: 25px;
  line-height: 36px;
}

.session-identity img {
  height: 52px;
  width: 74px;
}

.session-actions {
  gap: 24px;
}

.theme-toggle {
  align-items: center;
  background: #e7f1f7;
  border: 0;
  border-radius: 24px;
  color: #78909c;
  display: inline-flex;
  gap: 14px;
  height: 48px;
  justify-content: center;
  min-height: 48px;
  padding: 0 10px;
  width: 100px;
}

.theme-toggle .theme-toggle-option,
.sidebar-theme-toggle .theme-toggle-option {
  align-items: center;
  border-radius: 999px;
  color: #8aa1ad;
  display: inline-flex;
  height: 34px;
  justify-content: center;
  transition:
    background-color 120ms ease,
    color 120ms ease,
    box-shadow 120ms ease;
  width: 34px;
}

.theme-toggle .theme-toggle-option.active,
.sidebar-theme-toggle .theme-toggle-option.active {
  background: #fff;
  box-shadow: 0 1px 2px rgba(26, 49, 63, 0.14);
  color: #007fbe;
}

.session-outline {
  background: transparent;
  border: 1px solid #008fe3;
  border-radius: 0;
  color: #0086d7;
  display: inline-flex;
  font-size: 20px;
  height: 48px;
  align-items: center;
  gap: 14px;
  justify-content: center;
  line-height: 1;
  min-height: 48px;
  min-width: 150px;
  padding: 0 23px;
  text-decoration: none;
}

.session-back {
  min-width: 134px;
}

.session-back svg {
  flex: 0 0 auto;
}

.focus-view .writing-pane {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: 34px 0 28px;
}

.focus-view .editor-frame {
  background: #fff;
  border: 1px solid #e7edf1;
  border-radius: 4px;
  height: min(1112px, calc(100vh - 164px));
  min-height: 520px;
  overflow: hidden;
  width: min(1144px, calc(100vw - 512px));
}

.focus-view .editor-toolbar {
  background: #fff;
  border-bottom: 1px solid #aebdc5;
  flex-wrap: nowrap;
  gap: 7px;
  height: 68px;
  padding: 0 31px;
}

.focus-view .editor-toolbar button {
  background: transparent;
  border-color: transparent;
  color: #8298a2;
  height: 48px;
  min-height: 48px;
  min-width: 34px;
  padding: 0 5px;
}

.focus-view .editor-toolbar svg {
  stroke-width: 2.6;
}

.focus-view .editor-toolbar button.active {
  background: transparent;
  border-color: transparent;
  color: #526a75;
}

.focus-view .editor-toolbar select {
  background: #fff;
  border: 1px solid #b0bec5;
  border-radius: 3px;
  color: #52656f;
  height: 48px;
  min-height: 48px;
  padding: 0 34px 0 21px;
  width: 96px;
}

.focus-view .toolbar-divider {
  background: #aebdc5;
  height: 46px;
  margin: 0 8px;
}

.toolbar-combo-button {
  gap: 7px;
  min-width: 58px !important;
}

.toolbar-caret {
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid currentColor;
  height: 0;
  width: 0;
}

.focus-editor .editor-content {
  background: transparent;
  display: block;
  height: calc(100% - 68px);
  overflow-y: auto;
  padding: 0;
}

.focus-editor.toolbar-hidden .editor-content {
  height: 100%;
}

.focus-editor .exam-editor-surface {
  background: #fff;
  border: 0;
  box-sizing: border-box;
  box-shadow: none;
  color: #000;
  height: auto;
  min-height: 100%;
  padding: 58px 102px;
  width: 100%;
}

.focus-view .autosave-state {
  display: none;
}

.focus-save-state {
  align-items: center;
  background: rgba(246, 248, 249, 0.94);
  border: 1px solid rgba(174, 189, 197, 0.7);
  border-radius: 999px;
  bottom: 12px;
  color: #8298a2;
  display: flex;
  font-size: 13px;
  gap: 7px;
  justify-content: center;
  left: 50%;
  line-height: 18px;
  margin-top: 0;
  padding: 5px 10px;
  pointer-events: none;
  position: fixed;
  transform: translateX(-50%);
  z-index: 30;
}

.focus-save-state svg {
  height: 16px;
  width: 16px;
}

.submission-celebration {
  align-items: center;
  backdrop-filter: blur(7px);
  background: rgba(14, 24, 31, 0.34);
  display: flex;
  inset: 0;
  justify-content: center;
  padding: 24px;
  position: fixed;
  z-index: 2000;
}

.submission-celebration-card {
  align-items: center;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), #f6fbfe 100%);
  border: 1px solid rgba(147, 193, 219, 0.7);
  border-radius: 8px;
  box-shadow: 0 22px 70px rgba(17, 48, 64, 0.28);
  display: flex;
  flex-direction: column;
  max-width: 520px;
  overflow: hidden;
  padding: 30px 34px 28px;
  position: relative;
  text-align: center;
  width: min(100%, 520px);
}

.submission-celebration-card h2 {
  color: #1f3440;
  font-size: 28px;
  line-height: 1.15;
  margin: 0;
}

.submission-celebration-card p {
  color: #5d7380;
  font-size: 16px;
  line-height: 1.5;
  margin: 10px 0 0;
  max-width: 390px;
}

.submission-celebration-image {
  display: block;
  height: auto;
  margin: 0 auto 18px;
  max-height: 280px;
  max-width: min(100%, 360px);
  object-fit: contain;
  position: relative;
  z-index: 1;
}

.submission-celebration-action {
  align-items: center;
  align-self: center;
  background: #008bd2;
  border: 1px solid #008bd2;
  border-radius: 6px;
  color: #fff;
  display: inline-flex;
  font-size: 16px;
  font-weight: 600;
  gap: 0;
  justify-content: center;
  line-height: 1;
  margin-top: 22px;
  min-height: 44px;
  min-width: 144px;
  padding: 0 22px;
  text-decoration: none;
}

.submission-celebration-action:hover {
  filter: brightness(0.97);
}

.submission-confetti {
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  position: absolute;
}

.confetti-piece {
  animation-name: confetti-fall;
  animation-iteration-count: infinite;
  animation-timing-function: ease-in;
  border-radius: 2px;
  height: 14px;
  opacity: 0.92;
  position: absolute;
  top: -8%;
  width: 9px;
}

@keyframes confetti-fall {
  0% {
    opacity: 0;
    transform: translate3d(0, -10px, 0) rotate(0deg);
  }

  10% {
    opacity: 1;
  }

  100% {
    opacity: 0.9;
    transform: translate3d(0, 420px, 0) rotate(540deg);
  }
}

.submission-celebration-enter-active,
.submission-celebration-leave-active {
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.submission-celebration-enter-from,
.submission-celebration-leave-to {
  opacity: 0;
}

.submission-celebration-enter-from .submission-celebration-card,
.submission-celebration-leave-to .submission-celebration-card {
  transform: scale(0.97) translateY(10px);
}

:root[data-theme='dark'] .app-shell.exam-shell,
:root[data-theme='dark'] .exam-shell .main-pane,
:root[data-theme='dark'] .focus-view,
:root[data-theme='dark'] .exam-shell .focus-view {
  background: #090a0a;
}

:root[data-theme='dark'] .exam-session-header {
  background: #1b1b1b;
  border-bottom-color: #343434;
}

:root[data-theme='dark'] .session-identity {
  color: #f1f1f1;
}

:root[data-theme='dark'] .theme-toggle {
  background: #262626;
}

:root[data-theme='dark'] .theme-toggle .theme-toggle-option,
:root[data-theme='dark'] .sidebar-theme-toggle .theme-toggle-option {
  color: #9b9b9b;
}

:root[data-theme='dark'] .sidebar-theme-toggle {
  background: #004f80;
}

:root[data-theme='dark'] .theme-toggle .theme-toggle-option.active,
:root[data-theme='dark'] .sidebar-theme-toggle .theme-toggle-option.active {
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  color: #007fbe;
}

:root[data-theme='dark'] .session-outline {
  background: transparent;
  border-color: #0091ea;
  color: #16a2ff;
}

:root[data-theme='dark'] .focus-view .editor-frame {
  background: #1a1b1c;
  border-color: #1a1b1c;
}

:root[data-theme='dark'] .focus-view .editor-toolbar {
  background: #1a1b1c;
  border-bottom-color: #4b4f51;
}

:root[data-theme='dark'] .focus-view .editor-toolbar button,
:root[data-theme='dark'] .focus-view .editor-toolbar button.active {
  background: transparent;
  border-color: transparent;
  color: #a0a0a0;
}

:root[data-theme='dark'] .focus-view .editor-toolbar select {
  background: #1f2021;
  border-color: #6a6d6f;
  color: #d0d0d0;
}

:root[data-theme='dark'] .focus-view .toolbar-divider {
  background: #56595b;
}

:root[data-theme='dark'] .focus-editor .editor-content,
:root[data-theme='dark'] .focus-editor .exam-editor-surface {
  background: #1a1b1c;
  color: #f2f2f2;
  caret-color: #f2f2f2;
}

:root[data-theme='dark'] .focus-save-state {
  background: rgba(9, 10, 10, 0.88);
  border-color: rgba(86, 89, 91, 0.9);
  color: #a0a0a0;
}

:root[data-theme='dark'] .submission-celebration {
  background: rgba(3, 5, 7, 0.58);
}

:root[data-theme='dark'] .submission-celebration-card {
  background: linear-gradient(180deg, rgba(34, 35, 36, 0.98), rgba(23, 24, 25, 0.98) 100%);
  border-color: rgba(92, 96, 99, 0.8);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.52);
}

:root[data-theme='dark'] .submission-celebration-card h2 {
  color: #f2f2f2;
}

:root[data-theme='dark'] .submission-celebration-card p {
  color: #c0c4c7;
}

:root[data-theme='dark'] .submission-celebration-action {
  background: #0091ea;
  border-color: #0091ea;
  color: #fff;
}

@media (max-width: 1320px) {
  .focus-view .editor-frame {
    width: min(928px, calc(100vw - 48px));
  }

  .focus-editor .exam-editor-surface {
    padding: 54px 86px;
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .mobile-nav {
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid #c8e0eb;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    left: 0;
    position: fixed;
    right: 0;
    z-index: 30;
  }

  .mobile-nav a {
    align-items: center;
    color: #4f6875;
    display: grid;
    font-size: 12px;
    gap: 3px;
    justify-items: center;
    min-height: 58px;
    padding: 7px 4px;
    text-decoration: none;
  }

  .mobile-nav a.router-link-active {
    color: #006ea8;
    font-weight: 800;
  }

  .main-pane {
    grid-column: 1;
    padding-bottom: 66px;
  }

  .work-grid,
  .analytics-filter-grid,
  .analytics-metrics,
  .about-hero,
  .about-grid,
  .help-grid,
  .exam-layout,
  .correction-view,
  .correction-workspace,
  .correction-assessment-panel,
  .correction-document-grid,
  .ai-draft-two-column,
  .correction-layout {
    grid-template-columns: 1fr;
  }

  .correction-view {
    height: auto;
    overflow: visible;
  }

  .correction-list-panel,
  .correction-detail-scroll {
    overflow: visible;
  }

  .document-comment-rail {
    display: grid;
    gap: 8px;
    min-height: 0 !important;
  }

  .margin-comment-card {
    position: static;
  }

  .analytics-chart-grid {
    grid-template-columns: 1fr;
  }

  .create-exam-form,
  .collection-form,
  .home-hero,
  .metric-row {
    grid-template-columns: 1fr;
  }

  .home-metrics,
  .collection-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .rating-row {
    grid-template-columns: 1fr 1fr;
  }

  .auth-actions {
    grid-template-columns: 1fr;
  }

  .home-view,
  .flashcards-page,
  .flashcard-review {
    padding: 16px;
  }

  .home-hero,
  .auth-panel,
  .study-card {
    padding: 18px;
  }

  .home-hero h1,
  .page-header h1,
  .review-header h1 {
    font-size: 30px;
  }

  .home-actions,
  .page-header,
  .review-header {
    align-items: stretch;
    flex-direction: column;
  }

  .study-card {
    min-height: calc(100vh - 96px);
  }

  .study-card-face {
    min-height: 320px;
    padding: 18px;
  }

  .markdown-block {
    font-size: 19px;
  }

  .analytics-filter-actions,
  .analytics-bar-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .analytics-table-head,
  .analytics-table-row,
  .analytics-learning-task {
    grid-template-columns: 1fr;
  }

  .submission-celebration {
    padding: 16px;
  }

  .submission-celebration-card {
    padding: 24px 20px 22px;
  }

  .submission-celebration-card h2 {
    font-size: 24px;
  }

  .submission-celebration-image {
    max-width: min(100%, 290px);
  }
}