/* Generated from src/site/css/*.css. Edit source files, not this bundle. */
/* Design tokens and legacy aliases. */
:root {
  --color-primary: #06bbcc;
  --color-accent: #ff4c60;
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-text: #222222;
  --color-muted: #687083;
  --color-border: #e9edf4;
  --color-dark: #181d38;
  --color-soft: #eefcff;
  --shadow-card: 0 18px 45px rgba(16, 24, 40, 0.12);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 72px;
  --font-body: Arial, Helvetica, sans-serif;
  --font-heading: Arial, Helvetica, sans-serif;
  --content-width: 1140px;

  /* Legacy aliases kept for hosted pages generated before this refactor. */
  --primary: var(--color-primary);
  --accent: var(--color-accent);
  --dark: var(--color-dark);
  --ink: var(--color-text);
  --muted: var(--color-muted);
  --soft: var(--color-soft);
  --paper: var(--color-surface);
  --line: var(--color-border);
  --shadow: var(--shadow-card);
  --wide: var(--content-width);
}

body.theme-it-i {
  --color-primary: #06bbcc;
  --color-accent: #ff4c60;
  --color-dark: #181d38;
  --color-soft: #e9fbfd;
}

body.theme-it-ii {
  --color-primary: #ff7a1a;
  --color-accent: #06bbcc;
  --color-dark: #10233f;
  --color-soft: #fff3e9;
}

body.theme-it-iii {
  --color-primary: #5c6cff;
  --color-accent: #06bbcc;
  --color-dark: #10172a;
  --color-soft: #eef1ff;
}

body.theme-default {
  --color-primary: #2878eb;
  --color-accent: #f14d5d;
  --color-dark: #030f27;
  --color-soft: #eaf2ff;
}


* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  max-width: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.58;
}

h1,
h2,
h3,
h4 {
  color: var(--color-dark);
  font-family: var(--font-heading);
  line-height: 1.15;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 3px solid #111111;
  outline-offset: 3px;
}

table {
  width: 100%;
  margin: var(--space-4) 0;
  border-collapse: collapse;
  background: var(--color-surface);
}

caption {
  margin-bottom: var(--space-2);
  color: var(--color-muted);
  font-weight: 700;
  text-align: left;
}

th,
td {
  padding: 10px;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--color-soft);
  color: var(--color-dark);
}

ul,
ol {
  padding-left: 1.25rem;
}

li + li {
  margin-top: 6px;
}

.skip-link {
  position: absolute;
  top: -48px;
  left: 12px;
  z-index: 90;
  padding: 10px 14px;
  background: var(--color-dark);
  color: #ffffff;
}

.skip-link:focus {
  top: 12px;
}


.wrap {
  width: min(var(--content-width), calc(100% - 40px));
  margin-inline: auto;
}

.section {
  padding: var(--space-8) 0;
}

.section-tight {
  padding: var(--space-7) 0;
}

.grid {
  display: grid;
  gap: 28px;
}

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

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

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

.detail-shell,
.unit-main,
.hub-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(260px, 0.95fr);
  gap: 34px;
  align-items: start;
}

.unit-workspace-shell .unit-main {
  display: block;
}

.hub-sections {
  display: grid;
  gap: var(--space-5);
}

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
}


.center {
  text-align: center;
}

.muted {
  color: var(--color-muted);
}

.lead {
  max-width: 850px;
  color: var(--color-muted);
  font-size: 18px;
}

.mini-title {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mini-title::before,
.mini-title::after {
  display: block;
  width: 36px;
  height: 2px;
  background: var(--color-primary);
  content: "";
}

.mini-title.left::after {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  gap: 10px;
  padding: 15px 26px;
  border: 0;
  border-radius: var(--radius-sm);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.16);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-light {
  background: #ffffff;
  color: var(--color-dark);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 76px;
  background: #ffffff;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
}

.nav .wrap {
  display: flex;
  min-height: inherit;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-primary);
  font-size: 26px;
  font-weight: 900;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 3px;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 900;
}

.links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.links a {
  padding: 27px 12px;
  color: #333333;
  font-size: 14px;
  font-weight: 700;
}

.links a.active,
.links a:hover {
  color: var(--color-primary);
}

.join-btn {
  display: flex;
  align-self: stretch;
  align-items: center;
  padding: 0 26px;
  background: var(--color-primary);
  color: #ffffff;
  font-weight: 900;
}

.mobile-menu {
  display: none;
  min-width: 44px;
  min-height: 44px;
  border: 1px solid #e6e9ef;
  background: #ffffff;
  color: var(--color-dark);
  font-weight: 900;
}

.nav.is-open .links {
  display: flex;
}

.ele-hero {
  position: relative;
  display: flex;
  min-height: 520px;
  align-items: center;
  overflow: hidden;
  background: #111111;
  color: #ffffff;
}

.ele-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(24, 29, 56, 0.92), rgba(24, 29, 56, 0.66), rgba(24, 29, 56, 0.25)),
    var(--hero-img);
  background-position: center;
  background-size: cover;
  content: "";
}

.ele-hero .wrap {
  position: relative;
}

.hero-kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--color-primary);
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.ele-hero h1 {
  max-width: 840px;
  margin: 0 0 20px;
  color: #ffffff;
  font-size: clamp(40px, 7vw, 70px);
  line-height: 1;
  text-shadow: 0 3px 24px rgba(0, 0, 0, 0.45);
}

.ele-hero p {
  max-width: 760px;
  margin: 0 0 28px;
  color: #f5fbff;
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.service-card,
.course-card,
.lesson-panel,
.sidebar-card,
.artifact-card,
.evidence-card,
.submit-card,
.example-card {
  background: var(--color-surface);
}

.service-card {
  min-height: 198px;
  padding: 32px 22px;
  background: var(--color-soft);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.04);
  text-align: center;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.service-card:hover {
  background: var(--color-primary);
  color: #ffffff;
  transform: translateY(-6px);
}

.service-card h2,
.service-card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.service-card p {
  margin: 0;
  color: var(--color-muted);
}

.service-card:hover p {
  color: rgba(255, 255, 255, 0.9);
}

.service-icon {
  margin-bottom: 16px;
  font-size: 34px;
  line-height: 1;
}

.course-card {
  border: 1px solid rgba(16, 24, 40, 0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #f7f8fb;
  box-shadow: 0 12px 28px rgba(16, 24, 40, 0.08);
  transition: transform 0.25s ease;
}

.course-card:hover {
  transform: translateY(-6px);
}

.course-img {
  position: relative;
  height: 220px;
  margin: 0;
  overflow: hidden;
  background: var(--color-dark);
}

.course-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease, filter 0.35s ease;
}

.course-card:hover .course-img img {
  filter: saturate(1.12) contrast(1.04);
  transform: scale(1.035);
}

.unit-visual-card::after {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(3, 15, 39, 0.06), rgba(3, 15, 39, 0.78)),
    linear-gradient(90deg, rgba(3, 15, 39, 0.34), rgba(3, 15, 39, 0));
  content: "";
}

.unit-visual-network {
  --visual-accent: #06bbcc;
}

.unit-visual-hardware {
  --visual-accent: #ffb703;
}

.unit-visual-security {
  --visual-accent: #8b7cff;
}

.unit-visual-overlay {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  display: grid;
  gap: 5px;
  color: #ffffff;
  text-align: left;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.55);
}

.unit-visual-overlay strong,
.unit-visual-overlay small {
  max-width: 100%;
  overflow-wrap: anywhere;
}

.unit-visual-overlay strong {
  font-size: 18px;
  line-height: 1.12;
}

.unit-visual-overlay small {
  color: rgba(255, 255, 255, 0.86);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.2;
}

.unit-visual-code {
  width: fit-content;
  max-width: 100%;
  padding: 4px 8px;
  border-left: 3px solid #ffffff;
  background: color-mix(in srgb, var(--visual-accent) 82%, #050b1a);
  color: #ffffff;
  font-size: 12px;
  font-weight: 900;
  line-height: 1;
  overflow-wrap: anywhere;
}

.course-pills {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  max-width: calc(100% - 28px);
  gap: 6px;
}

.course-pills a {
  padding: 8px 18px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: rgba(3, 15, 39, 0.76);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.2);
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  backdrop-filter: blur(6px);
}

.course-pills a:hover,
.course-pills a:focus-visible {
  background: var(--color-primary);
}

.course-body {
  padding: 26px 24px 20px;
  text-align: center;
}

.course-body h2,
.course-body h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.3;
}

.meta-row {
  display: flex;
  border-top: 1px solid #dfe3ea;
}

.meta-row span {
  flex: 1;
  padding: 10px;
  color: #586071;
  font-size: 13px;
  text-align: center;
}

.quarter-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 0 34px;
}

.quarter-nav a {
  padding: 10px 16px;
  border: 1px solid var(--color-border);
  background: #f7f9fc;
  color: var(--color-dark);
  font-weight: 800;
}

.quarter-section + .quarter-section {
  margin-top: 42px;
}

.quarter-heading {
  margin: 0 0 20px;
  color: var(--color-dark);
  font-size: 28px;
}

.lesson-panel {
  padding: 32px;
  box-shadow: var(--shadow-card);
}

.lesson-panel h2 {
  margin: 0 0 10px;
  color: var(--color-dark);
  font-size: 34px;
}

.lesson-panel h3,
.lesson-panel .section-title {
  margin: 30px 0 10px;
  color: var(--color-dark);
  font-size: 24px;
}

.sidebar-card {
  margin-bottom: var(--space-5);
  padding: 26px;
  border-top: 6px solid var(--color-primary);
  box-shadow: var(--shadow-card);
}

.sidebar-card h2,
.sidebar-card h3 {
  margin: 0 0 16px;
  color: var(--color-dark);
  font-size: 20px;
}

.step-list {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-5);
  counter-reset: item;
}

.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  align-items: start;
  gap: var(--space-4);
  padding: 18px;
  border-left: 4px solid var(--color-primary);
  background: #f8fafc;
}

.step::before {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  background: var(--color-primary);
  color: #ffffff;
  content: counter(item);
  counter-increment: item;
  font-weight: 900;
}

.resource-list {
  display: grid;
  gap: 12px;
}

.resource-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-left: 4px solid var(--color-primary);
  background: #f7f9fc;
  font-weight: 800;
}

.resource-list a span {
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 600;
}

.footer {
  margin-top: 60px;
  padding: 56px 0 24px;
  background: var(--color-dark);
  color: #ffffff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 32px;
}

.footer a {
  display: block;
  margin: 8px 0;
  color: #d8deef;
}

.credit {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #aeb8d4;
  font-size: 12px;
}


.student-shell .nav {
  position: static;
  min-height: 48px;
}

.student-shell .brand {
  font-size: 20px;
}

.student-shell .brand-mark {
  width: 32px;
  height: 32px;
}

.student-shell .footer {
  margin-top: 24px;
  padding: 18px 0;
}

.student-shell .footer p {
  margin: 0;
}

.unit-shell {
  background: #fbfcff;
}

.unit-workspace-shell {
  min-height: calc(100vh - 48px);
  background: #f4f7fb;
}

.unit-workspace-shell .wrap {
  width: min(1240px, calc(100% - 40px));
}

.unit-workspace-shell .section {
  padding: 14px 0 24px;
}

.unit-workspace-header {
  border-bottom: 1px solid var(--color-border);
  background: #ffffff;
}

.unit-workspace-header .wrap {
  padding-block: 12px;
}

.workspace-title-block {
  min-width: 0;
}

.unit-workspace-header .unit-breadcrumb {
  margin-bottom: 6px;
  font-size: 12px;
}

.unit-workspace-header h1 {
  display: flex;
  min-width: 0;
  align-items: baseline;
  gap: 14px;
  margin: 0;
  color: var(--color-dark);
  font-size: 22px;
  line-height: 1.15;
}

.unit-workspace-header h1 span {
  flex: none;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 900;
  text-transform: uppercase;
}


.unit-hero,
.unit-hub-header {
  padding: 44px 0 28px;
  border-bottom: 1px solid var(--color-border);
  background: #fbfcff;
}

.unit-breadcrumb {
  margin: 0 0 10px;
  color: var(--color-muted);
  font-size: 14px;
}

.unit-hero h1,
.unit-hub-header h1 {
  margin: 0 0 10px;
  color: var(--color-dark);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.12;
}

.unit-hero p,
.unit-hub-header p {
  max-width: 860px;
  margin: 0;
  color: var(--color-muted);
}

.unit-section,
.hub-section {
  padding: 28px;
  border-top: 5px solid var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.unit-section h2:first-child,
.hub-section h2:first-child {
  margin-top: 0;
}

.warning-card,
.warning-block,
.teacher-provided-note,
.artifact-note {
  margin: 18px 0;
  padding: 18px;
  border-left: 6px solid var(--color-accent);
  background: #fff8ed;
}

.safety-card {
  border-left: 6px solid var(--color-primary);
  background: var(--color-soft);
}

.artifact-grid,
.artifact-list {
  display: grid;
  gap: var(--space-4);
}

.artifact-card,
.evidence-card,
.submit-card,
.example-card {
  padding: 20px;
  border: 1px solid var(--color-border);
  background: #fbfcff;
}

.artifact-card h3,
.evidence-card h3,
.submit-card h3 {
  margin: 0 0 8px;
  color: var(--color-dark);
}

.artifact-links,
.canvas-submit {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--space-4);
}

.artifact-response {
  min-height: 72px;
  border: 1px dashed #b8bfd0;
  background: #ffffff;
}

.artifact-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--color-muted);
  font-size: 14px;
}

.legacy-artifact-banner {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
  padding: 16px 18px;
  border: 1px solid #d6a04f;
  border-left: 6px solid #d97706;
  background: #fff8ed;
  color: var(--color-dark);
}

.legacy-artifact-banner strong {
  color: #7c2d12;
}

.legacy-artifact-banner a {
  font-weight: 800;
  color: var(--color-primary-dark);
}

.rubric-note {
  margin-top: 0;
  color: var(--color-muted);
}

.grading-rubric-table {
  min-width: 980px;
}

.grading-rubric-table th:first-child {
  min-width: 170px;
}

.grading-rubric-table td {
  min-width: 150px;
  vertical-align: top;
}

.rubric-table-scroll {
  position: relative;
}

.rubric-table-scroll::after {
  position: sticky;
  right: 0;
  display: block;
  width: max-content;
  margin-left: auto;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--color-dark);
  color: #ffffff;
  content: "Scroll to compare scores";
  font-size: 12px;
}

.grading-rubric-table th:first-child {
  position: sticky;
  left: 0;
  z-index: 1;
  background: #ffffff;
}

.artifact-page .hub-section,
.artifact-page .unit-section {
  border: 1px solid var(--color-border);
  border-top: 5px solid var(--color-primary);
  box-shadow: none;
}

.artifact-page .hub-section + .hub-section,
.artifact-page .unit-section + .unit-section {
  margin-top: 18px;
}

.prompt-list li {
  margin-bottom: 10px;
}

.return-to-canvas,
.return-panel {
  padding: var(--space-5);
  background: var(--color-dark);
  color: #ffffff;
}

.return-to-canvas h2,
.return-panel h2 {
  margin-top: 0;
  color: #ffffff;
}

.return-to-canvas p,
.return-panel p {
  color: #d8deef;
}

.return-to-canvas .btn,
.return-panel .btn {
  box-shadow: none;
}

.student-unit-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.student-unit-nav a {
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  background: #f7f9fc;
  color: var(--color-dark);
  font-weight: 800;
}

.rubric,
.rubric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-top: var(--space-5);
}

.rubric div,
.rubric-grid > * {
  padding: 18px;
  border-bottom: 4px solid var(--color-primary);
  background: var(--color-soft);
}

.hub-checklist,
.checklist {
  margin: 0;
}

.strong-work {
  border-left: 6px solid var(--color-primary);
}

.common-mistake {
  border-left: 6px solid var(--color-accent);
}

.terminal-output {
  overflow-x: auto;
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  background: #10172a;
  color: #eef1ff;
  font-family: Consolas, "Courier New", monospace;
}

.network-diagram,
.network-diagram-placeholder {
  min-height: 120px;
  padding: var(--space-4);
  border: 1px dashed var(--color-primary);
  background: linear-gradient(135deg, #f7fbff, #eef1ff);
}

.decision-table {
  overflow-x: auto;
}

.callout {
  padding: var(--space-4);
  border-left: 4px solid var(--color-primary);
  background: var(--color-soft);
}

.reflection-box {
  margin-top: 30px;
  padding: 20px;
  border-left: 6px solid var(--color-accent);
  background: #fff8ed;
}

.local-progress {
  display: grid;
  gap: 10px;
}

.local-progress label {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.local-progress input {
  margin-top: 4px;
}

.page-order-list p {
  margin: 8px 0;
  color: #d8deef;
}

.textbook-chapter-shell {
  background: #f6f8fb;
}

.chapter-hero {
  padding: 56px 0 36px;
  background:
    linear-gradient(90deg, rgba(16, 23, 42, 0.92), rgba(16, 23, 42, 0.72)),
    var(--color-dark);
  color: #ffffff;
}

.chapter-hero .wrap,
.textbook-layout {
  width: min(1120px, calc(100% - 40px));
}

.chapter-meta,
.chapter-read-time {
  color: #d8deef;
  font-weight: 800;
}

.chapter-hero h1 {
  max-width: 980px;
  margin: 0 0 12px;
  color: #ffffff;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.05;
}

.chapter-subtitle {
  max-width: 900px;
  color: #edf4ff;
  font-size: 20px;
}

.chapter-hero p {
  max-width: 880px;
}

.chapter-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 14px;
}

.textbook-layout {
  display: grid;
  gap: 22px;
}

.chapter-outline,
.chapter-panel,
.chapter-reading-section,
.vocab-card,
.assignment-idea-card,
.case-file-block {
  border: 1px solid rgba(16, 23, 42, 0.12);
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(16, 24, 40, 0.07);
}

.chapter-outline {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 14px;
}

.chapter-outline h2 {
  margin: 0 8px 0 0;
  color: var(--color-dark);
  font-size: 18px;
}

.chapter-outline a {
  padding: 9px 12px;
  border: 1px solid var(--color-border);
  background: #f7f9fc;
  color: var(--color-dark);
  font-weight: 800;
}

.chapter-panel {
  padding: 28px;
}

.chapter-panel h2 {
  margin: 0 0 16px;
  color: var(--color-dark);
  font-size: 30px;
}

.chapter-panel h3 {
  color: var(--color-dark);
}

.chapter-panel p,
.chapter-panel li {
  max-width: 82ch;
  line-height: 1.68;
}

.chapter-reading-section {
  padding: 22px;
  box-shadow: none;
}

.chapter-reading-section + .chapter-reading-section {
  margin-top: 18px;
}

.chapter-reading-section h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.chapter-purpose {
  color: var(--color-muted);
  font-weight: 800;
}

.chapter-example-grid,
.vocab-grid,
.assignment-idea-grid {
  display: grid;
  gap: 16px;
}

.chapter-example-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

.chapter-example-grid > div,
.chapter-example-grid > article,
.check-block {
  padding: 16px;
  border-left: 4px solid var(--color-primary);
  background: #f8fafc;
}

.check-block {
  margin-top: 16px;
  border-left-color: var(--color-accent);
}

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

.vocab-card,
.assignment-idea-card,
.case-file-block {
  padding: 18px;
  box-shadow: none;
}

.vocab-card h3,
.assignment-idea-card h3 {
  margin-top: 0;
}

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

.case-file-block {
  margin-top: 16px;
}

@media (max-width: 800px) {
  .chapter-example-grid,
  .vocab-grid,
  .assignment-idea-grid {
    grid-template-columns: 1fr;
  }

  .chapter-panel {
    padding: 20px;
  }
}

.lt-page {
  min-height: 100vh;
  overflow-x: hidden;
  background: #f8fafc;
  color: #0f172a;
}

.lt-site-header {
  border-bottom: 1px solid #e2e8f0;
  background: #ffffff;
}

.lt-site-header-inner {
  display: flex;
  width: min(1200px, calc(100% - 32px));
  min-height: 56px;
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
}

.lt-brand,
.lt-all-units {
  color: #1d4ed8;
  font-weight: 900;
}

.lt-all-units {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.lt-main {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.lt-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  color: #475569;
  font-size: 14px;
}

.lt-breadcrumb a {
  color: #1d4ed8;
  font-weight: 800;
}

.lt-breadcrumb span + span::before {
  margin-right: 8px;
  color: #94a3b8;
  content: "/";
}

.lt-unit-hero {
  max-width: 860px;
  padding: 18px 0 28px;
}

.lt-unit-label,
.lt-section-eyebrow,
.lt-panel-label {
  margin: 0 0 8px;
  color: #0f766e;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.lt-unit-hero h1 {
  max-width: 900px;
  margin: 0 0 14px;
  color: #0f172a;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.12;
}

.lt-hero-subtitle {
  max-width: 820px;
  margin: 0 0 14px;
  color: #475569;
  font-size: 18px;
  line-height: 1.65;
}

.lt-read-time {
  margin: 0;
  color: #64748b;
  font-weight: 800;
}

.lt-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-top: 22px;
}

.lt-text-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: #1d4ed8;
  font-weight: 900;
}

.lt-layout {
  display: grid;
  grid-template-columns: 250px minmax(0, 860px);
  gap: 48px;
  align-items: start;
  margin-top: 16px;
}

.lt-section-nav {
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #ffffff;
}

.lt-section-nav--desktop {
  position: sticky;
  top: 88px;
  display: grid;
  gap: 4px;
  padding: 16px;
}

.lt-section-nav--mobile {
  display: none;
}

.lt-section-nav-title {
  margin: 0;
  color: #0f172a;
  font-weight: 900;
}

.lt-section-count {
  margin-bottom: 8px;
  color: #64748b;
  font-size: 13px;
}

.lt-section-nav a {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 8px 10px;
  border-left: 3px solid transparent;
  color: #334155;
  font-weight: 800;
}

.lt-section-nav a[aria-current="true"],
.lt-section-nav a:hover,
.lt-section-nav a:focus-visible {
  border-left-color: #1d4ed8;
  background: #eff6ff;
  color: #1e3a8a;
}

.lt-reading-column {
  min-width: 0;
  max-width: 860px;
}

.lt-section {
  padding: 34px 0;
  border-top: 1px solid #e2e8f0;
}

.lt-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.lt-section h2 {
  margin: 0 0 14px;
  color: #0f172a;
  font-size: 30px;
  line-height: 1.18;
}

.lt-section h3 {
  margin: 22px 0 10px;
  color: #0f172a;
  font-size: 20px;
  line-height: 1.25;
}

.lt-section p,
.lt-section li {
  max-width: 76ch;
  color: #334155;
  font-size: 17px;
  line-height: 1.68;
}

.lt-list {
  margin: 12px 0 0;
  padding-left: 22px;
}

.lt-list li + li {
  margin-top: 8px;
}

.lt-list--check {
  list-style: square;
}

.lt-callout {
  margin: 20px 0 0;
  padding: 18px 20px;
  border: 1px solid #cbd5e1;
  border-left: 5px solid #0891b2;
  border-radius: 8px;
  background: #ffffff;
}

.lt-callout h3 {
  margin-top: 0;
}

.lt-callout--remember {
  border-left-color: #d97706;
  background: #fffbeb;
}

.lt-callout--why {
  border-left-color: #0f766e;
  background: #f0fdfa;
}

.lt-callout--tip {
  border-left-color: #16a34a;
  background: #f0fdf4;
}

.lt-concept-list {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

.lt-concept-tabs,
.lt-vocab-card,
.lt-compare-pane,
.lt-check-item {
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #ffffff;
}

.lt-concept-tabs {
  padding: 18px;
}

.lt-concept-tabs h3 {
  margin-top: 0;
}

.lt-tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 14px;
}

.lt-tab {
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 999px;
  background: #ffffff;
  color: #334155;
  font-weight: 900;
}

.lt-tab.is-active,
.lt-tab[aria-selected="true"] {
  border-color: #1d4ed8;
  background: #1d4ed8;
  color: #ffffff;
}

.lt-tab:focus-visible,
.lt-check-item summary:focus-visible,
.lt-bottom-nav a:focus-visible,
.lt-site-header a:focus-visible {
  outline: 3px solid #0891b2;
  outline-offset: 3px;
}

.lt-tab-panel {
  margin-top: 10px;
  padding: 14px 16px;
  border-radius: 8px;
  background: #f8fafc;
}

.lt-js .lt-tab-panel:not(.is-active) {
  display: none;
}

.lt-vocab-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.lt-vocab-card {
  padding: 18px;
}

.lt-vocab-card h3 {
  margin-top: 0;
}

.lt-compare-card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.lt-compare-pane {
  padding: 18px;
}

.lt-compare-pane h3 {
  margin-top: 0;
}

.lt-compare-pane--strong {
  border-left: 5px solid #16a34a;
  background: #f0fdf4;
}

.lt-compare-pane--weak {
  border-left: 5px solid #e11d48;
  background: #fff1f2;
}

.lt-compare-pane--why {
  grid-column: 1 / -1;
  border-left: 5px solid #0891b2;
  background: #ecfeff;
}

.lt-check-accordion {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.lt-check-item {
  overflow: hidden;
}

.lt-check-item summary {
  min-height: 44px;
  cursor: pointer;
  padding: 14px 18px;
  color: #0f172a;
  font-weight: 900;
}

.lt-check-item div {
  padding: 0 18px 16px;
}

.lt-bottom-nav {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.lt-bottom-nav a,
.lt-bottom-nav-disabled {
  min-height: 68px;
  display: grid;
  align-content: center;
  padding: 12px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #ffffff;
}

.lt-bottom-nav a {
  color: #1d4ed8;
}

.lt-bottom-nav span {
  color: #64748b;
  font-size: 13px;
  font-weight: 800;
}

.lt-bottom-nav strong {
  color: inherit;
}

.lt-bottom-nav-disabled {
  color: #94a3b8;
}

@media (max-width: 900px) {
  .lt-main {
    width: min(100% - 24px, 860px);
    padding-top: 18px;
  }

  .lt-unit-hero h1 {
    font-size: 30px;
  }

  .lt-layout {
    display: block;
  }

  .lt-section-nav--desktop {
    display: none;
  }

  .lt-section-nav--mobile {
    display: block;
    margin: 10px 0 24px;
  }

  .lt-section-nav--mobile summary {
    min-height: 44px;
    cursor: pointer;
    padding: 12px 14px;
    color: #0f172a;
    font-weight: 900;
  }

  .lt-section-nav--mobile div {
    display: grid;
    padding: 0 14px 12px;
  }

  .lt-section h2 {
    font-size: 25px;
  }

  .lt-tab-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .lt-tab {
    flex: 0 0 auto;
  }

  .lt-vocab-grid,
  .lt-compare-card,
  .lt-bottom-nav {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .lt-page *,
  .lt-page *::before,
  .lt-page *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media print {
  .lt-site-header,
  .lt-section-nav,
  .lt-hero-actions,
  .lt-bottom-nav {
    display: none !important;
  }

  .lt-main,
  .lt-reading-column {
    width: 100%;
    max-width: none;
  }

  .lt-layout {
    display: block;
  }

  .lt-section,
  .lt-concept-tabs,
  .lt-vocab-card,
  .lt-compare-pane,
  .lt-check-item {
    break-inside: avoid;
    box-shadow: none;
  }

  .lt-js .lt-tab-panel:not(.is-active) {
    display: block;
  }
}


.workspace-layout {
  display: grid;
  gap: 16px;
}

.workspace-action-strip {
  position: sticky;
  top: 12px;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  gap: 10px;
  padding: 10px;
  border: 1px solid rgba(16, 23, 42, 0.1);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 250, 255, 0.98)),
    rgba(255, 255, 255, 0.96);
  box-shadow: 0 14px 32px rgba(16, 23, 42, 0.12);
  backdrop-filter: blur(10px);
}

.workflow-step {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  min-width: 0;
  min-height: 100%;
  align-items: start;
  gap: 12px;
  padding: 12px;
  border: 1px solid rgba(16, 23, 42, 0.08);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-soft) 72%, #ffffff), #ffffff 68%),
    #f7f9fc;
  box-shadow: 0 6px 18px rgba(16, 23, 42, 0.06);
  color: var(--color-dark);
}

.workflow-step:hover,
.workflow-step:focus-visible {
  border-color: color-mix(in srgb, var(--color-primary) 55%, #ffffff);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-soft) 84%, #ffffff), #ffffff 72%),
    var(--color-soft);
  box-shadow: 0 10px 22px rgba(16, 23, 42, 0.1);
}

.workflow-step-number {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  border-radius: 999px;
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: inset 0 -2px 0 rgba(0, 0, 0, 0.12);
  font-size: 14px;
  font-weight: 900;
}

.workflow-step-text {
  display: grid;
  min-width: 0;
  align-content: start;
  gap: 4px;
}

.workflow-step-text strong,
.workflow-step-text small {
  overflow-wrap: anywhere;
  white-space: normal;
}

.workflow-step-text strong {
  font-size: 14px;
  line-height: 1.2;
}

.workflow-step-text small {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
}

.workspace-overview {
  display: grid;
  grid-template-columns: minmax(420px, 1.55fr) minmax(280px, 0.65fr);
  gap: 16px;
  align-items: start;
}

.workspace-primary-card,
.workspace-stat-card {
  border: 1px solid rgba(16, 23, 42, 0.1);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: 0 14px 32px rgba(16, 23, 42, 0.08);
}

.workspace-primary-card {
  padding: 18px;
}

.workspace-primary-card h2 {
  margin: 0 0 8px;
  color: var(--color-dark);
  font-size: 24px;
}

.workspace-primary-card h3 {
  margin: 0 0 10px;
  color: var(--color-dark);
  font-size: 18px;
}

.workspace-primary-card p:last-of-type {
  margin-bottom: 0;
}

.workspace-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.workspace-actions .btn {
  padding: 12px 16px;
}

.workspace-summary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.workspace-stat-card {
  padding: 16px;
}

.workspace-stat-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.workspace-stat-card strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-dark);
  font-size: 18px;
}

.workspace-stat-card h3 {
  margin: 16px 0 10px;
  color: var(--color-dark);
  font-size: 16px;
}

.workspace-stat-card p,
.workspace-stat-card .compact-list {
  margin-bottom: 0;
}

.workspace-progress {
  gap: 8px;
}

.workspace-progress label,
.workspace-submit-progress label {
  font-size: 13px;
}

.workspace-section {
  padding: 18px;
  border: 1px solid rgba(16, 23, 42, 0.1);
  border-radius: var(--radius-md);
  background: #ffffff;
  box-shadow: 0 14px 32px rgba(16, 23, 42, 0.08);
}

.workspace-work .artifact-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.workspace-section-heading h2,
.workspace-grid h2 {
  margin: 0 0 12px;
  color: var(--color-dark);
  font-size: 24px;
}

.workspace-section-heading {
  margin-bottom: 14px;
}

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

.workspace-learning {
  grid-template-columns: 1.05fr 1fr 1fr;
}

.workspace-support,
.workspace-submit {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.workspace-brief-card,
.workspace-learn-card,
.workspace-standards-card,
.workspace-review-card,
.workspace-support-card {
  padding: 18px;
}

.workspace-learn-card .vocabulary-card {
  margin-top: 16px;
  padding: 14px 0 0;
  border-top: 1px solid rgba(16, 23, 42, 0.08);
  box-shadow: none;
  break-inside: avoid;
}

.workspace-brief-card > p:not(.dashboard-eyebrow),
.workspace-learn-card > p:not(.dashboard-eyebrow),
.workspace-review-card > p:not(.dashboard-eyebrow),
.workspace-support-card > p:not(.dashboard-eyebrow),
.workspace-stat-card > p,
.workspace-review-card li,
.workspace-support-card li {
  max-width: 68ch;
  line-height: 1.65;
}

.workspace-learn-card .vocabulary-card h3 {
  margin-bottom: 10px;
}

.workspace-learn-card .vocabulary-card .compact-list li {
  padding: 8px 10px;
  border: 1px solid color-mix(in srgb, var(--color-primary) 16%, #dbeafe);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--color-soft) 58%, #ffffff);
}

.workspace-learn-card .vocabulary-card .compact-list li::marker {
  color: var(--color-primary);
}

.workspace-support-card#worked-example,
.workspace-support-card#guided-practice {
  position: relative;
  border-top: 4px solid var(--color-primary);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-soft) 72%, #ffffff), #ffffff 34%),
    #ffffff;
  break-inside: avoid;
}

.workspace-support-card#guided-practice {
  border-top-color: var(--color-accent);
  background:
    linear-gradient(180deg, color-mix(in srgb, #fff3df 80%, #ffffff), #ffffff 36%),
    #ffffff;
}

.workspace-support-card#guided-practice .compact-list li {
  padding: 8px 10px;
  border-left: 3px solid color-mix(in srgb, var(--color-accent) 65%, #ffffff);
  background: rgba(255, 255, 255, 0.88);
}

.workspace-support-card .btn {
  margin-top: 14px;
}

.workspace-submit-progress {
  margin-bottom: 14px;
}

.dashboard-command-bar {
  padding: 12px;
  border-bottom: 1px solid rgba(16, 23, 42, 0.08);
  background: #ffffff;
}

.dashboard-tabs {
  gap: 8px;
}

.dashboard-tab {
  min-height: 40px;
  padding: 10px 14px;
  border: 1px solid rgba(16, 23, 42, 0.08);
  border-radius: var(--radius-sm);
  background: #f7f9fc;
  color: var(--color-dark);
  font-weight: 800;
  text-align: left;
  transition: border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease, color 0.18s ease;
}

.dashboard-tab:hover,
.dashboard-tab:focus-visible {
  border-color: color-mix(in srgb, var(--color-primary) 55%, #ffffff);
  background: var(--color-soft);
  color: var(--color-dark);
}

.dashboard-tab[aria-selected="true"] {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: 0 8px 20px color-mix(in srgb, var(--color-primary) 24%, transparent);
}

.dashboard-utility-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(16, 23, 42, 0.08);
  background: #fbfcff;
}

.dashboard-resource-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dashboard-resource-links a {
  padding: 8px 10px;
  border: 1px solid rgba(16, 23, 42, 0.08);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--color-dark);
  font-size: 13px;
  font-weight: 800;
}

.dashboard-resource-links a:hover,
.dashboard-resource-links a:focus-visible {
  border-color: color-mix(in srgb, var(--color-primary) 55%, #ffffff);
  background: var(--color-soft);
}

.dashboard-progress-strip {
  display: flex;
  gap: 12px;
  align-items: center;
}

.dashboard-progress-strip label {
  align-items: center;
  gap: 6px;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.dashboard-progress-strip input {
  margin-top: 0;
}

.dashboard-panels {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), transparent 28%),
    #f5f8ff;
}

.dashboard-panel {
  position: relative;
  min-height: 500px;
  padding: 22px;
}

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

.dashboard-panel:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: -6px;
}

.dashboard-panel-header {
  margin-bottom: 20px;
}

.dashboard-panel-header p,
.dashboard-eyebrow {
  margin: 0 0 8px;
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

.dashboard-panel-header h2 {
  margin: 0;
  color: var(--color-dark);
  font-size: 28px;
}

.dashboard-anchor-alias {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.dashboard-card,
.student-slides-card,
.artifact-launch-card .submit-card {
  border: 1px solid rgba(16, 23, 42, 0.12);
  background: #ffffff;
  box-shadow: 0 14px 32px rgba(16, 23, 42, 0.08);
}

.dashboard-card {
  padding: 22px;
}

.mission-briefing {
  border-top: 5px solid var(--color-primary);
}

.overview-grid,
.learn-grid,
.practice-summary-grid,
.slides-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.slides-grid {
  align-items: start;
}

.vocabulary-card,
.mini-check-card {
  margin-top: 18px;
}

.compact-list {
  margin: 0;
  padding-left: 20px;
}

.compact-list li + li {
  margin-top: 8px;
}

.standards-chip-list {
  display: grid;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.standards-chip-list li {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--color-primary) 24%, #dbeafe);
  background: color-mix(in srgb, var(--color-soft) 70%, #ffffff);
}

.standards-chip-list strong {
  color: var(--color-primary);
  font-size: 13px;
}

.standards-chip-list span {
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.35;
}

.dashboard-note {
  margin: 16px 0 0;
}

.dashboard-note a {
  font-weight: 800;
}

.dashboard-callout-row,
.dashboard-grid,
.practice-layout {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}

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

.dashboard-callout {
  padding: 20px;
  border: 1px solid rgba(16, 23, 42, 0.12);
  border-left: 5px solid var(--color-accent);
  background: #ffffff;
}

.dashboard-callout h3,
.dashboard-card h3 {
  margin-top: 0;
}

.practice-layout,
.submit-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.artifact-launch-card .submit-card {
  height: 100%;
  border-top: 5px solid var(--color-primary);
}

.submit-card-kicker {
  margin: 0 0 8px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.submit-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
}

.submit-meta span {
  padding: 7px 9px;
  border-radius: var(--radius-sm);
  background: #f7f9fc;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 800;
}

.artifact-launch-card .submit-card p:last-of-type {
  margin-bottom: 0;
}

.checklist-card,
.rubric-card {
  border-top: 5px solid var(--color-accent);
}

.rubric-card {
  margin-top: 18px;
}

.student-slides-card {
  display: flex;
  min-height: 180px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 5px solid var(--color-primary);
}

.student-slides-card h3 {
  margin: 0 0 10px;
  color: var(--color-dark);
  font-size: 24px;
}

.student-slides-card p:last-child {
  margin-bottom: 0;
}

.dashboard-controls {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
}

.dashboard-panel-btn {
  min-width: 148px;
  border: 1px solid rgba(16, 23, 42, 0.12);
  background: #ffffff;
  color: var(--color-dark);
}

.dashboard-panel-btn.btn-primary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #ffffff;
}

@media (max-width: 960px) {
  .workspace-action-strip {
    top: 8px;
  }

  .workspace-overview,
  .workspace-learning,
  .workspace-support,
  .workspace-submit {
    grid-template-columns: 1fr;
  }

  .workspace-work .artifact-grid {
    grid-template-columns: 1fr;
  }

  .dashboard-utility-bar {
    grid-template-columns: 1fr;
  }

  .dashboard-progress-strip {
    flex-wrap: wrap;
  }

  .dashboard-panel {
    min-height: 0;
  }

  .overview-grid,
  .learn-grid,
  .practice-summary-grid,
  .slides-grid,
  .dashboard-callout-row,
  .practice-layout,
  .submit-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .workspace-primary-card,
  .workspace-section,
  .workspace-stat-card,
  .workspace-brief-card,
  .workspace-learn-card,
  .workspace-review-card,
  .workspace-support-card {
    padding: 16px;
  }

  .workspace-primary-card h2,
  .workspace-section-heading h2,
  .workspace-grid h2 {
    font-size: 21px;
  }

  .workspace-summary-grid {
    grid-template-columns: 1fr;
  }

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

  .workspace-actions .btn {
    width: 100%;
  }

  .dashboard-command-bar,
  .dashboard-panel {
    padding: 18px;
  }

  .dashboard-utility-bar {
    padding: 14px;
  }

  .dashboard-tabs {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-resource-links,
  .dashboard-progress-strip {
    gap: 10px;
  }

  .dashboard-resource-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-progress-strip {
    display: flex;
    flex-wrap: wrap;
  }

  .dashboard-tab {
    width: 100%;
  }

  .dashboard-panel-header h2,
  .student-slides-card h3 {
    overflow-wrap: anywhere;
    font-size: 24px;
  }

  .student-slides-card {
    display: grid;
  }

  .student-slides-card .btn,
  .dashboard-controls .btn {
    width: 100%;
  }

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

@media print {
  .workspace-action-strip {
    position: static;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding: 0;
    border: 0;
    box-shadow: none;
    background: #ffffff;
    backdrop-filter: none;
  }

  .workflow-step {
    box-shadow: none;
    break-inside: avoid;
  }

  .dashboard-layout {
    display: block;
  }

  .unit-dashboard {
    border: 0;
    background: #ffffff;
    box-shadow: none;
  }

  .dashboard-command-bar,
  .dashboard-controls,
  .dashboard-utility-bar {
    display: none !important;
  }

  .dashboard-panels {
    background: #ffffff;
  }

  .dashboard-panel,
  .dashboard-panel[hidden] {
    display: block !important;
    min-height: 0;
    padding: 0;
    margin-bottom: 18px;
    break-inside: avoid;
  }

  .dashboard-card,
  .student-slides-card,
  .artifact-launch-card .submit-card,
  .dashboard-callout {
    border: 1px solid #999999;
    box-shadow: none;
  }

  .dashboard-panel-header p,
  .dashboard-eyebrow {
    display: none;
  }

  .student-slides-card,
  .slides-grid {
    display: block;
  }

  .workspace-support-card#worked-example,
  .workspace-support-card#guided-practice,
  .workspace-learn-card .vocabulary-card .compact-list li {
    background: #ffffff !important;
  }

  .student-slides-card .btn,
  .canvas-submit .btn {
    border: 0;
    background: none;
    color: #000000;
    box-shadow: none;
    padding: 0;
  }
}


@media (max-width: 960px) {
  .links {
    display: none;
  }

  .nav.is-open {
    position: relative;
  }

  .nav.is-open .links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    z-index: 60;
    flex-direction: column;
    align-items: stretch;
    background: #ffffff;
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.14);
  }

  .nav.is-open .links a {
    padding: 14px 22px;
  }

  .mobile-menu {
    display: block;
  }

  .join-btn {
    display: none;
  }

  .grid-4,
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .detail-shell,
  .unit-main,
  .hub-layout {
    grid-template-columns: 1fr;
  }

  .workspace-action-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .unit-workspace-header .wrap {
    grid-template-columns: 1fr;
    gap: 10px;
  }

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

  .rubric,
  .rubric-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  html,
  body {
    overflow-x: hidden;
  }

  .wrap {
    width: calc(100% - 24px);
    max-width: var(--content-width);
  }

  .section {
    padding: 52px 0;
  }

  .ele-hero {
    min-height: 520px;
  }

  .grid-4,
  .grid-3,
  .grid-2,
  .rubric,
  .rubric-grid {
    grid-template-columns: 1fr;
  }

  .ele-hero h1,
  .unit-hero h1,
  .unit-hub-header h1,
  .unit-workspace-header h1 {
    max-width: 100%;
    overflow-wrap: anywhere;
    font-size: 30px;
    line-height: 1.08;
  }

  .unit-workspace-header h1 {
    display: grid;
    gap: 6px;
    font-size: 22px;
  }

  .ele-hero p {
    max-width: 100%;
    overflow-wrap: anywhere;
    font-size: 18px;
  }

  .hero-actions,
  .artifact-links,
  .canvas-submit {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions .btn,
  .artifact-links .btn,
  .canvas-submit .btn {
    width: 100%;
    padding: 14px 16px;
  }

  .lesson-panel,
  .unit-section,
  .hub-section {
    padding: 24px 18px;
  }

  .lesson-panel h2 {
    overflow-wrap: anywhere;
    font-size: 28px;
  }

  .lesson-panel h3,
  .lesson-panel .section-title {
    overflow-wrap: anywhere;
    font-size: 22px;
  }

  th,
  td {
    overflow-wrap: anywhere;
  }

  .sidebar-card {
    padding: 22px 18px;
  }

  .nav {
    min-height: 64px;
    padding: 12px 0;
  }

  .brand {
    font-size: 22px;
  }

  .student-unit-nav:not(.dashboard-tabs) {
    display: grid;
    grid-template-columns: 1fr;
  }

  .student-unit-nav:not(.dashboard-tabs) a {
    width: 100%;
  }

  .workspace-action-strip {
    position: static;
    grid-template-columns: 1fr;
  }

  .workflow-step {
    padding: 12px;
  }
}


@media print {
  body {
    background: #ffffff;
    color: #000000;
  }

  .nav,
  .footer,
  .student-unit-nav,
  .artifact-links,
  .print-hidden,
  .mobile-menu,
  .hero-actions,
  .course-pills {
    display: none !important;
  }

  .wrap {
    width: 100%;
  }

  .section {
    padding: 0;
  }

  .ele-hero::before {
    display: none;
  }

  .unit-main,
  .hub-layout,
  .detail-shell {
    display: block;
  }

  .unit-shell,
  .artifact-page,
  .printable-content {
    background: #ffffff;
  }

  .unit-section,
  .hub-section,
  .artifact-page .hub-section,
  .artifact-page .unit-section,
  .artifact-card,
  .evidence-card,
  .submit-card,
  .example-card {
    border: 1px solid #999999;
    box-shadow: none;
    break-inside: avoid;
  }

  .unit-section,
  .hub-section {
    margin-bottom: 14px;
  }

  .artifact-response {
    min-height: 54px;
  }

  .table-scroll,
  .decision-table {
    overflow: visible;
  }

  table,
  tr,
  td,
  th {
    break-inside: avoid;
  }

  .page-break-before {
    break-before: page;
  }

  .canvas-submit {
    display: block !important;
  }
}


.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.stack > * + * {
  margin-top: var(--space-4);
}

.print-only {
  display: none;
}

@media print {
  .print-only {
    display: block;
  }
}