:root {
  color-scheme: light;
  --bg: #eff6ff;
  --ink: #10243f;
  --muted: #536b89;
  --panel: #fbfdff;
  --panel-rgb: 251, 253, 255;
  --field: #ffffff;
  --soft: #e7f0ff;
  --button-soft: #e7f0ff;
  --meter-bg: #0f2644;
  --line: #c8daee;
  --green: #2563eb;
  --green-dark: #1d4ed8;
  --blue: #0ea5e9;
  --red: #c65d48;
  --amber: #d9a441;
  --shadow: 0 22px 70px rgba(29, 78, 216, 0.13);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b1426;
  --ink: #edf6ff;
  --muted: #a7bdd8;
  --panel: #111d33;
  --panel-rgb: 17, 29, 51;
  --field: #0a1323;
  --soft: #172842;
  --button-soft: #1d3150;
  --meter-bg: #060d1a;
  --line: #2c4668;
  --green: #60a5fa;
  --green-dark: #bfdbfe;
  --blue: #38bdf8;
  --red: #df7b62;
  --amber: #e0bd58;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.16), transparent 34%),
    linear-gradient(315deg, rgba(14, 165, 233, 0.14), transparent 38%),
    var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button {
  border: 0;
  font: inherit;
}

select,
input,
textarea {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  padding: clamp(14px, 2vw, 28px);
}

.workspace {
  width: 100%;
  margin: 0 auto;
}

.topbar,
.login-card,
.portal-panel,
.impersonation-banner,
.practice-grid,
.control-panel,
.transcript-panel,
.session-details,
.notice,
.lesson-coach-panel,
.context-panel,
.topic-card,
.message {
  border: 1px solid var(--line);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
  padding: 18px 20px;
  background: rgba(var(--panel-rgb), 0.88);
  box-shadow: var(--shadow);
}

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-card {
  display: grid;
  gap: 14px;
  width: min(440px, 100%);
  padding: 26px;
  background: rgba(var(--panel-rgb), 0.94);
  box-shadow: var(--shadow);
}

.login-card label {
  display: grid;
  gap: 7px;
  color: var(--green-dark);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.login-card input {
  min-height: 46px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  font-weight: 700;
}

.portal-tabs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.portal-context-tools {
  display: flex;
  align-items: center;
  flex: 1;
  justify-content: flex-end;
  gap: 8px;
  min-width: min(100%, 360px);
}

.portal-tab,
.sub-tab {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  background: var(--button-soft);
  color: var(--muted);
  cursor: pointer;
  font-weight: 900;
}

.portal-tab.active,
.sub-tab.active {
  background: var(--green);
  color: white;
}

.sub-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.professor-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

#professorModulesPanel {
  grid-template-columns: minmax(280px, 35fr) minmax(0, 65fr);
}

.professor-section[hidden] {
  display: none;
}

.portal-panel,
.impersonation-banner {
  margin-bottom: 18px;
  padding: 18px;
  background: rgba(var(--panel-rgb), 0.92);
  box-shadow: var(--shadow);
}

.impersonation-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(199, 141, 47, 0.18);
}

.portal-header {
  margin-bottom: 16px;
}

.portal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.wide-panel {
  grid-column: 1 / -1;
}

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

.record-card {
  display: grid;
  gap: 5px;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--field);
}

.record-card span,
.record-card small,
.feature-list {
  color: var(--muted);
}

.split-card {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.split-card > div {
  display: grid;
  gap: 3px;
}

.split-card small {
  width: fit-content;
  padding: 2px 7px;
  border: 1px solid var(--line);
  background: var(--soft);
  font-weight: 800;
  text-transform: uppercase;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.35);
  outline-offset: 2px;
}

.feature-list {
  margin: 0;
  padding-left: 20px;
  line-height: 1.6;
}

.portal-form,
.quiz-form {
  display: grid;
  gap: 10px;
}

.portal-form input,
.portal-form select,
.portal-form textarea,
.quiz-form textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  font: inherit;
}

.portal-form select[multiple] {
  min-height: 150px;
}

.module-picker,
.module-assignment,
.question-builder-list {
  display: grid;
  gap: 8px;
}

.module-picker,
.module-assignment {
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--field);
}

.module-assignment-tools {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) auto auto auto;
  gap: 8px;
  align-items: center;
}

.module-assignment-tools span,
.module-assignment-list small {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.module-assignment-list {
  display: grid;
  max-height: 230px;
  overflow: auto;
  border-top: 1px solid var(--line);
  padding-top: 8px;
  gap: 6px;
}

.compact-assignment .module-assignment-list {
  max-height: 180px;
}

.module-assignment-list label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 8px;
  align-items: center;
  padding: 7px;
  border: 1px solid transparent;
}

.module-assignment-list label:hover,
.module-library-card.active {
  border-color: var(--green);
  background: var(--soft);
}

.module-assignment-list label span,
.module-picker label {
  color: var(--muted);
  font-weight: 700;
}

.module-assignment-list small {
  grid-column: 2;
}

.module-picker input[type="checkbox"],
.module-assignment input[type="checkbox"],
.module-checks input[type="checkbox"] {
  width: 14px;
  height: 14px;
  min-height: 0;
  padding: 0;
  margin: 0 6px 0 0;
  vertical-align: middle;
}

.portal-form p {
  margin-bottom: 0;
  color: var(--muted);
}

.compact-form {
  margin-bottom: 12px;
}

.module-checks {
  margin: 8px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.module-access-panel,
.course-panel,
.course-edit-panel {
  margin-top: 8px;
  border: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.45);
}

.module-access-panel summary,
.course-panel summary,
.course-edit-panel summary {
  padding: 10px;
  cursor: pointer;
  color: var(--green-dark);
  font-weight: 900;
}

.module-access-panel .module-assignment {
  border-width: 1px 0 0;
}

.course-edit-form {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 10px;
  align-items: end;
  padding: 10px;
  border-top: 1px solid var(--line);
}

.course-edit-form label,
.topic-editor-row label,
.learning-step-row label,
.video-editor-row label,
.module-coach-editor label {
  display: grid;
  gap: 6px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.course-edit-form input {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
}

.student-dashboard-card {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  cursor: pointer;
}

.student-dashboard-card .roster-list {
  grid-column: 1 / -1;
}

.student-dashboard-card small {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
}

.student-dashboard-card.active {
  border-color: var(--green);
  background: rgba(37, 99, 235, 0.1);
}

.student-detail-card {
  gap: 14px;
}

.student-detail-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

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

.student-detail-grid label {
  display: grid;
  gap: 6px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.student-detail-grid input {
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
}

.student-grade-pill {
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--green-dark);
  font-weight: 900;
  white-space: nowrap;
}

.student-comment-card {
  line-height: 1.45;
}

.student-comment-card strong,
.student-comment-card b {
  color: var(--green-dark);
  font-size: 0.82rem;
  text-transform: uppercase;
}

.student-comment-card p {
  margin: 4px 0 0;
  color: var(--muted);
}

.quiz-grade-card {
  gap: 12px;
}

.grade-edit-row {
  display: flex;
  gap: 8px;
  align-items: end;
  flex-wrap: wrap;
}

.grade-edit-row label,
.performance-comment-row {
  display: grid;
  gap: 6px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.grade-edit-row input,
.performance-comment-row textarea {
  min-height: 40px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  padding: 9px 10px;
  font: inherit;
  text-transform: none;
}

.performance-comment-row textarea {
  width: 100%;
  resize: vertical;
  line-height: 1.45;
}

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

.module-library-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
}

.module-library-head strong {
  min-width: 0;
}

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

.module-library-card button {
  justify-self: end;
}

.record-actions,
.enrollment-actions,
.roster-item {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.record-actions,
.enrollment-actions {
  margin-top: 10px;
}

.enrollment-actions select {
  flex: 1;
  min-width: 180px;
}

.record-actions input,
.record-actions select {
  min-height: 38px;
  min-width: 150px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
}

.roster-item {
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid var(--line);
}

.roster-item p {
  margin: 0;
}

.status-badge {
  display: inline-flex;
  width: fit-content;
  padding: 3px 8px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status-badge.disabled {
  background: rgba(181, 68, 63, 0.16);
  color: #9b2c2c;
}

.question-builder-card {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--field);
}

.modal-card {
  width: min(760px, calc(100vw - 32px));
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  padding: 18px;
  box-shadow: var(--shadow);
}

.modal-card::backdrop {
  background: rgba(0, 0, 0, 0.42);
}

.modal-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.question-builder-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.question-builder-card label {
  display: grid;
  gap: 6px;
  color: var(--green-dark);
  font-size: 0.8rem;
  font-weight: 900;
  text-transform: uppercase;
}

.question-builder-card p,
.roster-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.roster-list {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.roster-list b {
  font-size: 0.82rem;
  text-transform: uppercase;
}

.quiz-builder-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.topic-editor {
  display: grid;
  gap: 12px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--field);
}

.builder-mode-banner {
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-weight: 800;
  line-height: 1.35;
}

.builder-mode-banner.editing {
  border-color: rgba(37, 99, 235, 0.34);
  background: rgba(37, 99, 235, 0.11);
  color: var(--green-dark);
}

.builder-mode-banner.draft {
  border-color: rgba(199, 141, 47, 0.38);
  background: rgba(199, 141, 47, 0.13);
  color: var(--ink);
}

.topic-editor-head,
.module-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.topic-editor-row {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) minmax(180px, 1fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.video-editor-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(220px, 1.2fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.video-topic-editor {
  display: grid;
  grid-column: 1 / -1;
  gap: 10px;
  padding: 10px;
  border: 1px dashed var(--line);
  background: rgba(var(--panel-rgb), 0.66);
}

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

.nested-topic-row {
  background: rgba(var(--panel-rgb), 0.82);
}

.topic-row-head,
.topic-prompt-field,
.video-next-move-field {
  grid-column: 1 / -1;
}

.topic-row-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.topic-editor-row input,
.topic-editor-row textarea,
.learning-step-row input,
.learning-step-row select,
.learning-step-row textarea,
.video-editor-row input,
.video-editor-row select,
.video-editor-row textarea,
.module-coach-editor input,
.module-coach-editor textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  text-transform: none;
}

.inline-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 900;
}

.inline-check input {
  width: auto;
}

.learning-step-row {
  display: grid;
  grid-template-columns: minmax(120px, 0.5fr) minmax(180px, 1fr) minmax(160px, 0.8fr);
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.learning-step-prompt-field {
  grid-column: 1 / -1;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.product-mark {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.version-badge {
  display: inline-flex;
  align-items: center;
  min-height: 20px;
  padding: 0 7px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 900;
  line-height: 1;
  text-transform: none;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 4.25rem);
  line-height: 0.94;
}

h2 {
  margin-bottom: 0;
  font-size: 1.1rem;
}

.session-state {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-content: flex-end;
  color: var(--muted);
  font-weight: 800;
  flex-wrap: wrap;
}

.theme-toggle,
.topbar-select,
.toolbar-select {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.theme-toggle select,
.topbar-select select,
.toolbar-select select {
  min-height: 34px;
  padding: 0 8px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  font-weight: 800;
}

.topbar-select select {
  max-width: 150px;
}

.toolbar-select {
  text-transform: none;
}

.toolbar-select select {
  min-width: 150px;
  max-width: 210px;
}

.state-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #9c9487;
  box-shadow: 0 0 0 5px rgba(156, 148, 135, 0.16);
}

.state-dot.connecting {
  background: var(--amber);
  box-shadow: 0 0 0 5px rgba(199, 141, 47, 0.2);
}

.state-dot.connected {
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(37, 99, 235, 0.18);
}

.state-dot.error {
  background: var(--red);
  box-shadow: 0 0 0 5px rgba(181, 68, 63, 0.16);
}

.practice-grid {
  display: grid;
  grid-template-columns: minmax(250px, 315px) minmax(0, 1fr);
  min-height: min(720px, calc(100vh - 150px));
  background: rgba(var(--panel-rgb), 0.8);
  box-shadow: var(--shadow);
}

.student-work-header {
  grid-column: 1 / -1;
  background: rgba(var(--panel-rgb), 0.94);
}

.control-panel,
.transcript-panel {
  background: rgba(var(--panel-rgb), 0.92);
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border-width: 0 1px 0 0;
}

.meter {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  align-items: end;
  gap: 10px;
  height: 72px;
  padding: 10px;
  background: var(--meter-bg);
  overflow: hidden;
}

.meter span {
  display: block;
  height: 34%;
  background: linear-gradient(180deg, #93c5fd, #2563eb);
  transform-origin: bottom;
  opacity: 0.78;
}

.meter span:nth-child(2) {
  height: 58%;
  background: linear-gradient(180deg, #d7bd75, #c78d2f);
}

.meter span:nth-child(3) {
  height: 80%;
  background: linear-gradient(180deg, #8fb8e2, #2e5f94);
}

.meter span:nth-child(4) {
  height: 48%;
}

.meter span:nth-child(5) {
  height: 68%;
  background: linear-gradient(180deg, #e1aaa5, #b5443f);
}

.meter.live span {
  animation: pulse 900ms ease-in-out infinite alternate;
}

.meter.live span:nth-child(2) {
  animation-delay: 120ms;
}

.meter.live span:nth-child(3) {
  animation-delay: 240ms;
}

.meter.live span:nth-child(4) {
  animation-delay: 360ms;
}

.meter.live span:nth-child(5) {
  animation-delay: 480ms;
}

@keyframes pulse {
  from {
    transform: scaleY(0.38);
  }
  to {
    transform: scaleY(1);
  }
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.7fr) minmax(0, 0.9fr) minmax(0, 0.7fr);
  gap: 6px;
}

.ai-tutor-toolbar .controls {
  grid-template-columns: 1fr 1fr;
}

.controls .primary-action,
.controls .icon-action {
  min-width: 0;
  padding-inline: 8px;
  line-height: 1.14;
  overflow-wrap: anywhere;
  white-space: normal;
}

.primary-action,
.icon-action,
.quiet-action,
.context-select,
.topic-card {
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.primary-action {
  min-height: 42px;
  padding: 0 12px;
  background: var(--green);
  color: white;
  font-weight: 900;
}

.primary-action.danger {
  background: #b52924;
  color: #ffffff;
  border: 1px solid #ffb0aa;
  box-shadow: 0 0 0 3px rgba(181, 41, 36, 0.2);
}

.primary-action.full-width {
  width: 100%;
}

.primary-action:hover:not(:disabled),
.icon-action:hover:not(:disabled),
.quiet-action:hover,
.topic-card:hover:not(:disabled) {
  transform: translateY(-1px);
}

.primary-action:disabled,
.icon-action:disabled,
.quiet-action:disabled,
.topic-card:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.icon-action {
  min-height: 42px;
  background: var(--button-soft);
  color: var(--ink);
  font-weight: 900;
}

.icon-action.active {
  background: var(--blue);
  color: white;
}

.icon-action.listening {
  background: var(--green);
  color: white;
}

.icon-action.paused {
  background: var(--amber);
  color: #16120a;
}

.icon-action.danger {
  background: rgba(181, 68, 63, 0.18);
  color: #7b241f;
}

.icon-action.danger:not(:disabled) {
  background: #b52924;
  color: #ffffff;
  border: 1px solid #ffb0aa;
  box-shadow: 0 0 0 3px rgba(181, 41, 36, 0.22), 0 10px 24px rgba(181, 41, 36, 0.28);
}

.icon-action.danger:hover:not(:disabled) {
  background: #d43b35;
}

.notice {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  background: var(--soft);
  color: var(--muted);
  line-height: 1.45;
}

.lesson-coach-panel {
  display: grid;
  gap: 12px;
  padding: 13px;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.1), rgba(var(--panel-rgb), 0.95));
}

.lesson-coach-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.lesson-coach-head span {
  color: var(--green-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.lesson-coach-head h2 {
  margin: 4px 0 0;
  font-size: 1rem;
  line-height: 1.25;
}

.lesson-coach-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.lesson-coach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.lesson-coach-grid article {
  display: grid;
  gap: 3px;
  padding: 9px 10px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: rgba(var(--panel-rgb), 0.72);
}

.lesson-coach-grid strong {
  color: var(--green-dark);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.lesson-coach-grid span {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.deploy-output {
  min-height: 96px;
  max-height: 260px;
  overflow: auto;
  margin: 10px 0 0;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--meter-bg);
  color: #dff5e8;
  white-space: pre-wrap;
}

.notice strong {
  color: var(--ink);
}

.notice.error {
  border-color: #e2bab6;
  background: #faecea;
  color: #74312d;
}

.context-panel {
  display: grid;
  gap: 10px;
  padding: 10px;
  background: var(--soft);
}

.course-contact-panel {
  margin-top: auto;
}

.course-contact-panel p {
  display: grid;
  gap: 4px;
}

.course-contact-panel strong {
  color: var(--ink);
}

.course-contact-panel small {
  color: var(--muted);
  line-height: 1.35;
}

.field-group {
  display: grid;
  gap: 5px;
}

.context-panel label {
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.context-panel select,
.context-panel input[type="file"] {
  width: 100%;
  min-height: 36px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  font-weight: 800;
}

.context-panel input[type="file"] {
  padding: 10px 12px;
  font-size: 0.9rem;
}

.context-panel p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.3;
}

.session-details {
  display: grid;
  gap: 0;
  background: var(--soft);
}

.session-details div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
}

.session-details div + div {
  border-top: 1px solid var(--line);
}

.session-details span {
  color: var(--muted);
  font-size: 0.9rem;
}

.session-details strong {
  max-width: 170px;
  text-align: right;
  overflow-wrap: anywhere;
}

.topic-panel {
  display: grid;
  gap: 8px;
}

.control-panel h2,
.topic-rail h2 {
  font-size: 0.95rem;
}

.control-panel .record-list {
  gap: 6px;
}

.control-panel .record-card {
  gap: 2px;
  padding: 8px 10px;
}

.progress-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.progress-row[role="button"] {
  cursor: pointer;
}

.progress-row strong,
.progress-row span {
  font-size: 0.82rem;
}

.topic-list {
  display: grid;
  gap: 7px;
}

.topic-card {
  display: grid;
  gap: 3px;
  padding: 9px 10px;
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.topic-card span {
  font-weight: 900;
}

.topic-card small {
  color: var(--muted);
  font-size: 0.78rem;
}

.topic-card:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.topic-card.active {
  border-color: var(--green);
  background: rgba(37, 99, 235, 0.12);
}

.topic-group-label {
  margin: 8px 0 0;
  color: var(--green-dark);
  font-size: 0.74rem;
  font-weight: 900;
  text-transform: uppercase;
}

.empty-practice {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.45;
}

.transcript-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
  border-width: 0;
}

.transcript-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 20px 22px;
  border-bottom: 1px solid var(--line);
}

.student-work-strip {
  display: grid;
  grid-template-columns: minmax(220px, 1fr);
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.title-kicker {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  border: 1px solid rgba(37, 99, 235, 0.28);
  background: rgba(37, 99, 235, 0.1);
  color: var(--green-dark);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.transcript-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.transcript-tools input {
  min-height: 38px;
  width: 180px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  font: inherit;
}

.student-work-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.86);
}

.transcript-header .student-work-tabs {
  padding: 0;
  border-bottom: 0;
  background: transparent;
}

.student-work-tab {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: var(--button-soft);
  color: var(--muted);
  cursor: pointer;
  font-weight: 900;
}

.student-work-tab.active {
  background: var(--green);
  color: white;
}

.learning-path-bar {
  display: flex;
  align-items: stretch;
  gap: 0;
  min-width: 0;
  overflow-x: auto;
  padding: 2px 0;
}

.learning-path-step {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 38px;
  max-width: 220px;
  padding: 0 14px 0 12px;
  border: 1px solid var(--line);
  border-left-width: 0;
  background: var(--field);
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.8rem;
  font-weight: 900;
  white-space: nowrap;
}

.learning-path-step:first-child {
  border-left-width: 1px;
}

.learning-path-step span {
  display: inline-grid;
  width: 22px;
  height: 22px;
  place-items: center;
  border-radius: 999px;
  background: var(--button-soft);
  color: var(--muted);
  font-size: 0.72rem;
}

.learning-path-step strong {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.learning-path-step.complete {
  background: rgba(37, 99, 235, 0.1);
}

.learning-path-step.complete span,
.learning-path-step.active span {
  background: var(--green);
  color: white;
}

.learning-path-step.active {
  border-color: var(--green);
  background: var(--green);
  color: white;
}

.learning-path-empty {
  align-self: center;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

.student-work-panel[hidden] {
  display: none;
}

.quiet-action {
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--line);
  background: var(--button-soft);
  color: var(--muted);
  font-weight: 800;
}

.upload-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.quiet-action.full-width {
  width: 100%;
}

.student-content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  min-height: 0;
  background: rgba(var(--panel-rgb), 0.92);
}

.quiz-work-panel {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
  min-height: 0;
  background: rgba(var(--panel-rgb), 0.92);
}

.flashcard-work-panel {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 18px 22px;
  background: rgba(var(--panel-rgb), 0.92);
}

.flashcard-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.flashcard-toolbar h2 {
  margin: 4px 0 0;
}

.flashcard-stage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
}

.flashcard {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--field);
}

.flashcard-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.flashcard-head span,
.flashcard-label {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.flashcard-face {
  display: grid;
  gap: 8px;
  min-height: 120px;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.flashcard-face p,
.flashcard-back p {
  margin: 0;
  line-height: 1.5;
}

.flashcard-back {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid rgba(37, 99, 235, 0.28);
  background: rgba(37, 99, 235, 0.1);
}

.quiz-switcher {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 14px;
  border-right: 1px solid var(--line);
  background: var(--soft);
}

.quiz-switcher-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.quiz-stage {
  display: grid;
  align-content: start;
  min-width: 0;
}

.quiz-placeholder {
  display: grid;
  gap: 6px;
  margin: 22px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--muted);
}

.quiz-placeholder strong {
  color: var(--ink);
}

.learning-main,
.conversation-column {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
}

.conversation-column {
  border-left: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.96);
}

.ai-tutor-toolbar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.96);
}

.ai-tutor-toolbar span {
  display: block;
  color: var(--green-dark);
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.ai-tutor-toolbar strong {
  display: block;
  color: var(--ink);
}

.conversation-column .notice {
  margin: 12px 22px 0;
}

.learning-rail {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 14px 22px 22px;
  background: rgba(var(--panel-rgb), 0.92);
}

.video-panel {
  min-width: 0;
  padding: 14px 22px 0;
}

.video-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.video-panel-head h2 {
  margin: 0;
  font-size: 0.96rem;
}

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

.video-frame-slot iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
  border: 1px solid var(--line);
  background: var(--meter-bg);
}

.conversation-column .video-frame-slot iframe {
  max-height: min(46vh, 520px);
}

.topic-rail {
  align-content: start;
  padding: 12px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.topic-rail .topic-list {
  max-height: 420px;
  overflow: auto;
  padding-right: 2px;
}

.video-link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.video-link-list button {
  min-height: 32px;
  padding: 0 10px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--muted);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 800;
}

.video-link-list button.active {
  background: var(--green-dark);
  color: #ffffff;
  border-color: var(--green-dark);
}

html[data-theme="dark"] .video-link-list button.active {
  background: var(--green);
  color: #07110d;
  border-color: var(--green);
}

.video-modal-card {
  width: min(1120px, calc(100vw - 32px));
}

.expanded-video-frame {
  margin-top: 14px;
}

.expanded-video-controls {
  justify-content: center;
  margin-top: 12px;
}

.expanded-video-frame .video-frame-slot iframe {
  max-height: min(72vh, 720px);
}

.quiz-runner {
  border-top: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.96);
}

.quiz-form {
  padding: 18px 22px;
}

.quiz-question {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  background: var(--field);
}

.quiz-question legend {
  padding: 0 6px;
  font-weight: 900;
}

.quiz-question label {
  color: var(--muted);
}

.inline-quiz-feedback {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 10px;
  margin-top: 8px;
  padding: 10px;
  border: 1px solid var(--line);
  background: var(--soft);
}

.inline-quiz-feedback strong {
  color: var(--green-dark);
}

.inline-quiz-feedback span {
  color: var(--muted);
  font-weight: 900;
}

.inline-quiz-feedback p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
}

.transcript {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  overflow-y: auto;
  padding: 68px 22px 22px;
}

.chat-composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding: 12px 22px;
  border-top: 1px solid var(--line);
  background: rgba(var(--panel-rgb), 0.96);
}

.chat-composer input {
  width: 100%;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
}

.message {
  width: min(680px, 92%);
  padding: 13px 14px;
  background: var(--field);
}

.message span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.message p {
  margin-bottom: 0;
  line-height: 1.55;
  white-space: pre-wrap;
}

.message a {
  color: var(--blue);
  font-weight: 900;
}

.message.user {
  align-self: flex-end;
  background: rgba(37, 99, 235, 0.14);
  border-color: rgba(37, 99, 235, 0.32);
}

.message.tutor {
  align-self: flex-start;
}

.message.event {
  width: auto;
  align-self: center;
  padding: 8px 12px;
  background: var(--soft);
  color: var(--muted);
  font-size: 0.88rem;
}

@media (max-width: 860px) {
  .app-shell {
    padding: 14px;
  }

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

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

  .professor-section {
    grid-template-columns: 1fr;
  }

  #professorModulesPanel {
    grid-template-columns: 1fr;
  }

  .module-assignment-tools,
  .course-edit-form,
  .chat-composer,
  .student-dashboard-card,
  .student-detail-grid {
    grid-template-columns: 1fr;
  }

  .topic-editor-row,
  .video-editor-row,
  .learning-step-row {
    grid-template-columns: 1fr;
  }

  .student-dashboard-card .roster-list {
    grid-column: auto;
  }

  .portal-tabs,
  .impersonation-banner {
    align-items: stretch;
    flex-direction: column;
  }

  .portal-context-tools {
    align-items: stretch;
    flex-direction: column;
  }

  .session-state {
    justify-content: flex-start;
  }

  .transcript-header {
    align-items: stretch;
    flex-direction: column;
  }

  .student-work-strip {
    grid-template-columns: 1fr;
  }

  .transcript-tools {
    justify-content: flex-start;
  }

  .toolbar-select,
  .toolbar-select select,
  .transcript-tools input {
    width: 100%;
    max-width: none;
  }

  .practice-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .student-content-grid {
    grid-template-columns: 1fr;
  }

  .quiz-work-panel {
    grid-template-columns: 1fr;
  }

  .quiz-switcher {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .student-work-tabs {
    flex-direction: column;
  }

  .learning-path-bar {
    padding-bottom: 4px;
  }

  .learning-rail {
    border-top: 1px solid var(--line);
  }

  .conversation-column {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .topic-rail .topic-list {
    max-height: none;
  }

  .control-panel {
    border-width: 0 0 1px;
  }

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

  .ai-tutor-toolbar {
    grid-template-columns: 1fr;
  }

  .icon-action {
    min-height: 46px;
  }

  .transcript {
    max-height: 560px;
    padding-top: 76px;
  }
}