:root {
  --ink: #07162f;
  --navy: #061a3b;
  --navy-2: #092655;
  --cobalt: #0a57e8;
  --cobalt-2: #0647c9;
  --coral: #ff6256;
  --mint: #35bb91;
  --mint-dark: #08795a;
  --sun: #ffc42e;
  --paper: #ffffff;
  --cloud: #f5f8fc;
  --sky: #edf5ff;
  --line: #dce3ed;
  --line-strong: #b9c5d5;
  --muted: #647086;
  --danger: #d83d3d;
  --success-surface: #effbf6;
  --warning-surface: #fff8e6;
  --shadow-sm: 0 2px 8px rgb(7 22 47 / 8%);
  --shadow-md: 0 12px 28px rgb(7 22 47 / 12%);
  --sidebar-width: 206px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  color: inherit;
}

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

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

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4,
strong {
  letter-spacing: 0;
}

h1 {
  line-height: 1.04;
}

h2,
h3 {
  line-height: 1.18;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgb(10 87 232 / 30%);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 8px;
  left: 8px;
  padding: 10px 14px;
  background: var(--paper);
  border: 1px solid var(--cobalt);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

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

.boot-screen {
  min-height: 100vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 8px;
  background: var(--paper);
}

.boot-screen .brand-star {
  font-size: 42px;
  color: var(--sun);
  -webkit-text-stroke: 1px #e4a600;
}

.boot-screen strong {
  font-size: 24px;
}

.boot-screen p {
  color: var(--muted);
}

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 11px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  cursor: pointer;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.button:hover {
  border-color: var(--cobalt);
}

.button:active {
  transform: translateY(1px);
}

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

.button-primary {
  border-color: var(--cobalt);
  background: var(--cobalt);
  color: var(--paper);
}

.button-primary:hover {
  border-color: var(--cobalt-2);
  background: var(--cobalt-2);
}

.button-secondary {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

.button-danger {
  border-color: #f1b7b7;
  color: var(--danger);
}

.button-ghost {
  min-height: 36px;
  padding: 7px 10px;
  border-color: transparent;
  background: transparent;
  color: var(--cobalt);
}

.button-arrow::after {
  content: "→";
  font-size: 21px;
  font-weight: 400;
}

.icon-button {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  cursor: pointer;
}

.eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--cobalt);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

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

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: max-content;
  max-width: 100%;
  padding: 5px 9px;
  border-radius: 999px;
  background: var(--cloud);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.status::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: currentColor;
}

.status-ready,
.status-reviewed {
  background: #eaf9f3;
  color: var(--mint-dark);
}

.status-new,
.status-review {
  background: #fff4d2;
  color: #9b6900;
}

.status-resubmission {
  background: #fff0ee;
  color: #b83d35;
}

.toast {
  position: fixed;
  z-index: 2000;
  right: 24px;
  bottom: 24px;
  max-width: min(390px, calc(100vw - 32px));
  padding: 14px 18px;
  border: 1px solid var(--mint);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: var(--shadow-md);
  color: var(--mint-dark);
  font-weight: 700;
}

/* Public website */

.public-site {
  min-height: 100vh;
}

.public-header {
  position: sticky;
  z-index: 50;
  top: 0;
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 36px;
  padding: 0 clamp(28px, 4.4vw, 76px);
  border-bottom: 1px solid rgb(220 227 237 / 70%);
  background: rgb(255 255 255 / 96%);
}

.public-brand,
.portal-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-size: 23px;
  font-weight: 900;
}

.brand-star {
  color: var(--sun);
  line-height: 1;
}

.public-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.7vw, 44px);
  font-size: 15px;
  font-weight: 650;
}

.public-nav a,
.header-link {
  position: relative;
  padding: 28px 0 24px;
}

.public-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 17px;
  left: 0;
  height: 2px;
  background: var(--cobalt);
}

.public-header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.public-hero {
  min-height: 560px;
  display: grid;
  align-items: center;
  padding: 56px clamp(28px, 4.8vw, 82px) 62px;
  background-color: var(--paper);
  background-image: url("assets/learning-constellation.png");
  background-position: center right;
  background-repeat: no-repeat;
  background-size: auto 100%;
  border-bottom: 1px solid var(--line);
}

.public-hero-copy {
  position: relative;
  z-index: 1;
  width: min(610px, 47vw);
}

.public-hero h1 {
  max-width: 620px;
  margin-bottom: 16px;
  font-size: clamp(54px, 5.3vw, 80px);
  font-weight: 900;
}

.public-hero h2 {
  max-width: 590px;
  margin-bottom: 16px;
  font-size: clamp(28px, 2.4vw, 38px);
}

.public-hero p {
  max-width: 560px;
  margin-bottom: 28px;
  color: #35415a;
  font-size: 18px;
}

.hero-actions,
.role-entry-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-bottom: 24px;
}

.hero-actions .button {
  min-width: 280px;
  min-height: 56px;
}

.role-entry-links a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  font-weight: 800;
}

.role-entry-links a:first-child {
  color: #178357;
}

.role-entry-links a:last-child {
  color: var(--coral);
}

.role-entry-icon {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-size: 18px;
}

.skill-ribbon {
  min-height: 112px;
  display: grid;
  grid-template-columns: 1.3fr repeat(5, 1fr);
  align-items: stretch;
  padding: 0 clamp(28px, 4.8vw, 82px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.skill-ribbon > strong {
  align-self: center;
  padding-right: 28px;
  font-size: 21px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  padding: 20px 18px;
  border-left: 1px solid var(--line);
}

.skill-item span:last-child {
  min-width: 0;
}

.skill-item strong,
.skill-item small {
  display: block;
}

.skill-item strong {
  font-size: 14px;
}

.skill-item small {
  margin-top: 2px;
  color: var(--muted);
}

.skill-glyph {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  display: grid;
  place-items: center;
  border: 2px solid currentColor;
  border-radius: 50%;
  font-size: 19px;
  font-weight: 800;
}

.is-mint {
  color: #238d65;
}

.is-sun {
  color: #bc8200;
}

.is-cobalt {
  color: var(--cobalt);
}

.is-coral {
  color: var(--coral);
}

.public-benefit-band {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr 0.58fr;
  min-height: 390px;
  border-bottom: 1px solid var(--line);
}

.benefits-copy,
.demo-preview,
.public-callout {
  padding: 38px clamp(28px, 4vw, 64px);
}

.benefits-copy {
  border-right: 1px solid var(--line);
}

.benefits-copy h2,
.demo-preview h2,
.public-callout h2 {
  font-size: 29px;
}

.benefit-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
}

.benefit-column + .benefit-column {
  padding-left: 34px;
  border-left: 1px solid var(--line);
}

.benefit-column h3 {
  font-size: 22px;
}

.benefit-column ul {
  display: grid;
  gap: 11px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.benefit-column li {
  position: relative;
  padding-left: 25px;
}

.benefit-column li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--mint);
  font-weight: 900;
}

.benefit-column:last-child li::before {
  color: var(--coral);
}

.demo-preview {
  position: relative;
  display: grid;
  align-content: center;
  background: var(--sky);
}

.demo-screen {
  position: relative;
  width: min(100%, 430px);
  margin: 12px auto 0;
  padding: 25px 24px 28px;
  border: 9px solid var(--ink);
  border-bottom-width: 18px;
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow-md);
}

.demo-screen strong {
  display: block;
  margin-bottom: 18px;
}

.demo-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.demo-options span {
  display: grid;
  place-items: center;
  min-height: 72px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--cloud);
  font-weight: 700;
}

.public-callout {
  position: relative;
  overflow: hidden;
  display: grid;
  align-content: center;
}

.public-callout::after {
  content: "★";
  position: absolute;
  right: 24px;
  bottom: -26px;
  color: var(--sun);
  font-size: 126px;
  transform: rotate(-8deg);
  opacity: 0.9;
}

.public-callout > * {
  position: relative;
  z-index: 1;
}

.public-footer {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px clamp(28px, 4.8vw, 82px);
  background: var(--ink);
  color: var(--paper);
  font-size: 14px;
}

.course-page {
  min-height: calc(100vh - 76px);
  padding: 54px clamp(28px, 5vw, 86px) 72px;
  background:
    linear-gradient(to right, var(--paper) 0 58%, transparent 58%),
    url("assets/learning-constellation.png") right center / auto 100% no-repeat;
}

.course-intro {
  width: min(690px, 56vw);
}

.course-intro h1 {
  margin: 20px 0 14px;
  font-size: clamp(48px, 5vw, 72px);
}

.course-intro > p {
  max-width: 620px;
  font-size: 19px;
  color: #35415a;
}

.course-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 30px 0;
}

.course-fact {
  padding: 18px;
  border-top: 3px solid var(--cobalt);
  background: var(--cloud);
}

.course-fact:nth-child(2) {
  border-color: var(--mint);
}

.course-fact:nth-child(3) {
  border-color: var(--coral);
}

.course-fact strong,
.course-fact span {
  display: block;
}

.course-fact strong {
  margin-bottom: 4px;
  font-size: 19px;
}

/* Shared portal shell */

.portal {
  min-height: 100vh;
  background: var(--cloud);
}

.connection-banner {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 20px;
  border-bottom: 1px solid #ead28e;
  background: var(--warning-surface);
  color: #6d4a00;
  font-size: 14px;
  font-weight: 650;
  text-align: center;
}

[hidden] {
  display: none !important;
}

.portal-topbar {
  position: sticky;
  z-index: 70;
  top: 0;
  height: 74px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 0 26px;
  background: var(--navy);
  color: var(--paper);
  box-shadow: 0 1px 0 rgb(255 255 255 / 12%);
}

.portal-brand {
  min-width: 190px;
  font-size: 20px;
  line-height: 1;
}

.portal-brand .brand-star {
  font-size: 34px;
}

.course-chip {
  justify-self: start;
  padding: 9px 14px;
  border-radius: 6px;
  background: var(--cobalt);
  font-size: 17px;
  font-weight: 800;
}

.topbar-tools {
  display: flex;
  align-items: center;
  gap: 18px;
}

.star-score {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 800;
}

.star-score span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--sun);
  color: #754d00;
}

.profile-menu {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.avatar {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--cobalt);
  color: var(--paper);
  font-weight: 800;
}

.instruction-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  padding: 4px 5px 4px 10px;
  border: 1px solid rgb(255 255 255 / 30%);
  border-radius: 6px;
  color: var(--paper);
  font-size: 13px;
}

.instruction-switch.on-light {
  border-color: var(--line-strong);
  color: var(--ink);
}

.instruction-switch-label {
  font-weight: 650;
}

.language-segment {
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: 2px;
  border-radius: 4px;
  background: rgb(255 255 255 / 12%);
}

.on-light .language-segment {
  background: var(--cloud);
}

.language-segment button {
  min-width: 34px;
  min-height: 26px;
  padding: 2px 7px;
  border: 0;
  border-radius: 3px;
  background: transparent;
  color: inherit;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.language-segment button[aria-pressed="true"] {
  background: var(--cobalt);
  color: var(--paper);
}

.student-layout,
.teacher-layout {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.portal-sidebar {
  position: relative;
  min-height: calc(100vh - 74px);
  display: flex;
  flex-direction: column;
  padding: 20px 12px;
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.portal-sidebar.dark {
  overflow: hidden;
  border-right: 0;
  background: var(--navy);
  color: var(--paper);
}

.portal-sidebar.dark::after {
  content: "";
  position: absolute;
  right: -125px;
  bottom: -10px;
  width: 390px;
  height: 300px;
  background: url("assets/learning-constellation.png") right bottom / auto 100% no-repeat;
  pointer-events: none;
}

.sidebar-nav {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 6px;
}

.sidebar-nav a {
  min-height: 46px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 5px;
  color: #34425b;
  font-size: 14px;
  font-weight: 650;
}

.dark .sidebar-nav a {
  color: #e8effc;
}

.sidebar-nav a:hover {
  background: var(--cloud);
}

.dark .sidebar-nav a:hover {
  background: rgb(255 255 255 / 8%);
}

.sidebar-nav a[aria-current="page"] {
  background: #edf3ff;
  color: var(--cobalt);
}

.dark .sidebar-nav a[aria-current="page"] {
  background: var(--cobalt);
  color: var(--paper);
}

.nav-glyph {
  width: 23px;
  flex: 0 0 23px;
  text-align: center;
  font-size: 17px;
}

.sidebar-bottom {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 6px;
  margin-top: auto;
}

.portal-main {
  min-width: 0;
}

.page-shell {
  width: min(1220px, calc(100% - 64px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.page-head h1 {
  margin-bottom: 8px;
  font-size: 38px;
}

.page-head p {
  margin-bottom: 0;
  color: var(--muted);
}

.page-head-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Student */

.student-dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
  gap: 28px;
}

.dashboard-hero {
  position: relative;
  min-height: 325px;
  overflow: hidden;
  padding: 38px 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background-color: var(--paper);
  background-image: url("assets/learning-constellation.png");
  background-position: right center;
  background-repeat: no-repeat;
  background-size: auto 100%;
}

.dashboard-hero-copy {
  position: relative;
  z-index: 1;
  width: 52%;
}

.dashboard-hero h1 {
  margin-bottom: 10px;
  font-size: 50px;
}

.dashboard-hero p {
  color: #35415a;
  font-size: 18px;
}

.today-assignment {
  position: absolute;
  z-index: 2;
  right: 34px;
  bottom: 28px;
  left: 34px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 20px 24px;
  border: 2px solid var(--cobalt);
  border-left-width: 8px;
  border-radius: 8px;
  background: rgb(255 255 255 / 96%);
  box-shadow: var(--shadow-md);
}

.today-assignment h2 {
  margin: 0 0 3px;
  font-size: 24px;
}

.today-assignment p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.dashboard-panel {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.dashboard-panel h2 {
  font-size: 22px;
}

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

.learning-row {
  min-height: 74px;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.learning-disc {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--mint);
  color: var(--paper);
  font-size: 19px;
  font-weight: 800;
}

.learning-row:nth-child(2) .learning-disc {
  background: var(--coral);
}

.learning-row:nth-child(3) .learning-disc {
  background: var(--sun);
  color: #704d00;
}

.learning-row strong,
.learning-row small {
  display: block;
}

.learning-row small {
  color: var(--muted);
}

.row-check {
  color: var(--mint-dark);
  font-size: 24px;
  font-weight: 900;
}

.teacher-message {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid #b8ead9;
  border-radius: 6px;
  background: var(--success-surface);
}

.teacher-message .message-glyph {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--mint);
  color: var(--paper);
  font-weight: 800;
}

.teacher-message p {
  margin: 3px 0 0;
  color: #31564a;
}

.lesson-overview {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
}

.lesson-hero {
  position: relative;
  overflow: hidden;
  min-height: 440px;
  padding: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.lesson-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 310px;
  height: 240px;
  background: url("assets/learning-constellation.png") right top / auto 100% no-repeat;
}

.lesson-hero > * {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.lesson-hero h1 {
  margin: 28px 0 8px;
  font-size: 46px;
}

.lesson-points {
  display: grid;
  gap: 10px;
  margin: 28px 0;
  padding: 20px;
  border-left: 4px solid var(--cobalt);
  background: var(--sky);
}

.lesson-points span::before {
  content: "✓";
  margin-right: 9px;
  color: var(--mint-dark);
  font-weight: 900;
}

.lesson-note {
  padding: 20px;
  border: 1px solid #f0d178;
  border-radius: 6px;
  background: var(--warning-surface);
}

.homework-card {
  align-self: start;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.homework-card h2 {
  font-size: 23px;
}

.homework-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  margin: 20px 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.homework-meta div {
  padding: 14px;
  background: var(--paper);
}

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

.homework-meta span {
  color: var(--muted);
  font-size: 13px;
}

.student-practice-layout {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: minmax(340px, 35%) minmax(0, 65%);
  background: var(--paper);
}

.practice-journey {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 74px);
  padding: 34px clamp(24px, 3vw, 48px);
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.practice-journey::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  right: -180px;
  width: 470px;
  height: 420px;
  background: url("assets/learning-constellation.png") right top / auto 100% no-repeat;
}

.practice-journey > * {
  position: relative;
  z-index: 1;
}

.practice-journey h1 {
  margin: 4px 0 10px;
  font-size: 54px;
}

.practice-journey > p {
  max-width: 250px;
  color: #46546d;
  font-size: 18px;
}

.journey-assignment {
  margin-top: 88px;
  padding: 20px 24px;
  border: 2px solid var(--cobalt);
  border-left-width: 8px;
  border-radius: 8px;
  background: rgb(255 255 255 / 97%);
  box-shadow: var(--shadow-md);
}

.journey-assignment h2 {
  margin-bottom: 2px;
}

.journey-assignment p {
  margin-bottom: 0;
  color: var(--muted);
}

.journey-list {
  display: grid;
  gap: 10px;
  margin-top: 28px;
}

.journey-item {
  min-height: 58px;
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 10px;
}

.journey-item > span:first-child {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--cloud);
  color: var(--muted);
  font-weight: 800;
}

.journey-item.is-complete > span:first-child {
  background: var(--mint);
  color: var(--paper);
}

.journey-item.is-current > span:first-child {
  background: var(--sun);
  color: #725000;
}

.journey-item strong,
.journey-item small {
  display: block;
}

.journey-item small {
  color: var(--muted);
}

.practice-stage {
  min-width: 0;
  background: var(--cloud);
}

.practice-stage-head {
  min-height: 70px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 14px 34px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.practice-title-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  min-width: 0;
}

.practice-title-row strong {
  font-size: 20px;
}

.practice-title-row span {
  color: var(--muted);
}

.practice-head-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.practice-body {
  width: min(980px, calc(100% - 56px));
  margin: 0 auto;
  padding: 20px 0 42px;
}

.progress-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}

.progress-track {
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfe4eb;
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--cobalt);
  transition: width 220ms ease;
}

.exercise-card {
  min-height: 450px;
  padding: clamp(28px, 3.5vw, 46px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.exercise-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 26px;
}

.exercise-card h1 {
  max-width: 720px;
  margin-bottom: 8px;
  font-size: clamp(29px, 2.3vw, 38px);
}

.inline-language-link {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--cobalt);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.hint-button {
  flex: 0 0 auto;
}

.hint-box {
  margin-bottom: 22px;
  padding: 13px 16px;
  border-left: 4px solid var(--sun);
  background: var(--warning-surface);
}

.exercise-content {
  min-height: 210px;
}

.learning-prompt {
  margin-bottom: 22px;
  color: var(--ink);
  font-size: 20px;
  font-weight: 750;
}

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

.choice {
  min-height: 104px;
  padding: 16px;
  border: 2px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
  font-size: 20px;
  font-weight: 750;
  cursor: pointer;
}

.choice:hover {
  border-color: #99b8ef;
}

.choice[aria-pressed="true"] {
  border-color: var(--cobalt);
  background: #edf3ff;
  color: var(--cobalt);
}

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

.matching-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.7fr) 34px minmax(220px, 1fr);
  align-items: center;
  gap: 12px;
}

.matching-word {
  min-height: 48px;
  display: flex;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 5px;
  font-weight: 750;
}

.matching-row select {
  width: 100%;
  min-height: 48px;
  padding: 8px 38px 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--paper);
}

.typed-answer,
.writing-answer {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.typed-answer {
  min-height: 58px;
  padding: 12px 15px;
  font-size: 20px;
}

.writing-answer {
  min-height: 170px;
  padding: 14px 15px;
  resize: vertical;
}

.word-order-zone {
  min-height: 86px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 14px;
  border: 2px dashed var(--line-strong);
  border-radius: 7px;
  background: var(--cloud);
}

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

.word-bank {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.word-chip {
  min-height: 46px;
  padding: 9px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--paper);
  font-weight: 750;
  cursor: pointer;
}

.word-order-zone .word-chip {
  border-color: var(--cobalt);
  color: var(--cobalt);
}

.exercise-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 28px;
}

.exercise-help {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
}

.feedback-panel {
  position: relative;
  overflow: hidden;
  margin-top: 22px;
  border: 1px solid var(--mint);
  border-radius: 8px;
  background: var(--paper);
}

.feedback-panel.is-incorrect {
  border-color: var(--coral);
}

.feedback-main {
  position: relative;
  min-height: 128px;
  display: grid;
  grid-template-columns: 68px 1fr;
  align-items: center;
  gap: 18px;
  padding: 24px 250px 24px 28px;
  background: var(--success-surface);
}

.is-incorrect .feedback-main {
  background: #fff3f1;
}

.feedback-main::after {
  content: "★";
  position: absolute;
  right: 55px;
  bottom: -12px;
  color: var(--sun);
  font-size: 112px;
  transform: rotate(-9deg);
}

.feedback-icon {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--mint);
  color: var(--paper);
  font-size: 34px;
  font-weight: 900;
}

.is-incorrect .feedback-icon {
  background: var(--coral);
}

.feedback-main h2 {
  margin-bottom: 4px;
  color: var(--mint-dark);
  font-size: 29px;
}

.is-incorrect .feedback-main h2 {
  color: #a7342c;
}

.feedback-main p {
  margin-bottom: 0;
}

.feedback-actions {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 26px;
  border-top: 1px solid var(--line);
}

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 28px;
}

.result-card {
  position: relative;
  overflow: hidden;
  min-height: 480px;
  padding: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  text-align: center;
}

.result-card::after {
  content: "";
  position: absolute;
  right: -180px;
  bottom: -40px;
  width: 500px;
  height: 340px;
  background: url("assets/learning-constellation.png") right bottom / auto 100% no-repeat;
  opacity: 0.9;
}

.result-card > * {
  position: relative;
  z-index: 1;
}

.result-check {
  width: 96px;
  height: 96px;
  display: grid;
  place-items: center;
  margin: 12px auto 20px;
  border-radius: 50%;
  background: var(--mint);
  color: var(--paper);
  font-size: 52px;
  font-weight: 900;
}

.result-card h1 {
  color: var(--mint-dark);
  font-size: 44px;
}

.score-line {
  margin-bottom: 28px;
  font-size: 21px;
}

.result-note {
  max-width: 580px;
  margin: 0 auto 28px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--cloud);
  text-align: left;
}

.next-path {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.path-step {
  position: relative;
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  min-height: 82px;
}

.path-step::after {
  content: "";
  position: absolute;
  top: 38px;
  bottom: 0;
  left: 18px;
  width: 2px;
  background: var(--line-strong);
}

.path-step:last-child::after {
  display: none;
}

.path-marker {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 3px solid var(--cobalt);
  border-radius: 50%;
  background: var(--paper);
  color: var(--cobalt);
  font-weight: 800;
}

.path-step.is-complete .path-marker {
  border-color: var(--mint);
  background: var(--mint);
  color: var(--paper);
}

.path-step.is-locked .path-marker {
  border-color: var(--line-strong);
  color: var(--muted);
}

.settings-list {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.settings-row {
  min-height: 74px;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 13px 20px;
  border-bottom: 1px solid var(--line);
}

.settings-row:last-child {
  border-bottom: 0;
}

.settings-row > span:first-child {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--sky);
  color: var(--cobalt);
  font-weight: 800;
}

.pwa-install-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.pwa-install-button > span {
  font-size: 18px;
  line-height: 1;
}

.pwa-install-state,
.pwa-install-guide {
  max-width: 250px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 11px;
  border-radius: 5px;
  background: var(--success-surface);
  color: var(--mint-dark);
  font-size: 13px;
  font-weight: 750;
  text-align: left;
}

.pwa-install-guide {
  background: var(--sky);
  color: var(--cobalt-2);
}

/* Teacher */

.teacher-topbar {
  background: var(--navy);
}

.teacher-layout {
  grid-template-columns: 190px minmax(0, 1fr);
}

.teacher-content {
  min-width: 0;
}

.teacher-sidebar-heading {
  padding: 16px 12px 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.teacher-map-workspace {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: 292px minmax(500px, 1fr) 348px;
  background: var(--paper);
}

.teacher-rail,
.lesson-inspector {
  min-width: 0;
  padding: 22px 18px;
  background: var(--paper);
}

.teacher-rail {
  border-right: 1px solid var(--line);
}

.lesson-inspector {
  border-left: 1px solid var(--line);
}

.rail-section + .rail-section {
  margin-top: 25px;
}

.rail-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.rail-heading h2 {
  margin-bottom: 0;
  font-size: 13px;
  text-transform: uppercase;
}

.rail-heading a,
.rail-heading button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--cobalt);
  font-size: 12px;
  cursor: pointer;
}

.agenda-card,
.group-row,
.queue-mini {
  display: grid;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  background: var(--paper);
}

.agenda-card {
  grid-template-columns: 45px 1fr;
  margin-bottom: 8px;
  padding: 11px;
  border-radius: 5px;
}

.agenda-card.is-selected {
  border: 2px solid var(--cobalt);
  background: #f5f8ff;
}

.agenda-date {
  text-align: center;
}

.agenda-date strong,
.agenda-date small,
.agenda-card strong,
.agenda-card small {
  display: block;
}

.agenda-date strong {
  font-size: 20px;
}

.agenda-card small {
  color: var(--muted);
  font-size: 12px;
}

.group-row {
  grid-template-columns: 34px 1fr auto;
  min-height: 59px;
  margin-bottom: 8px;
  padding: 10px;
  border-radius: 5px;
}

.group-row.is-selected {
  border: 2px solid var(--cobalt);
}

.group-row small {
  display: block;
  color: var(--muted);
}

.queue-mini {
  grid-template-columns: 36px 1fr auto;
  min-height: 58px;
  padding: 9px;
  border-width: 0 0 1px;
}

.queue-mini .avatar {
  width: 34px;
  height: 34px;
  flex-basis: 34px;
  font-size: 13px;
}

.queue-mini small {
  display: block;
  color: var(--muted);
}

.count-badge {
  min-width: 23px;
  height: 23px;
  display: inline-grid;
  place-items: center;
  padding: 0 6px;
  border-radius: 50%;
  background: var(--coral);
  color: var(--paper);
  font-size: 11px;
  font-weight: 800;
}

.map-canvas {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 74px);
  padding: 26px 24px;
  background: var(--paper);
}

.map-canvas::after {
  content: "";
  position: absolute;
  right: -250px;
  bottom: -100px;
  width: 650px;
  height: 430px;
  background: url("assets/learning-constellation.png") right bottom / auto 100% no-repeat;
  opacity: 0.15;
}

.map-head {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.map-head h1 {
  margin-bottom: 0;
  font-size: 26px;
}

.constellation-map {
  position: relative;
  z-index: 1;
  height: calc(100vh - 180px);
  min-height: 590px;
  margin-top: 18px;
}

.map-path {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-path path {
  fill: none;
  stroke: #9da7b7;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 2 12;
}

.map-unit {
  position: absolute;
  z-index: 2;
  width: 78px;
  display: grid;
  justify-items: center;
  gap: 5px;
  padding: 0;
  border: 0;
  background: transparent;
  color: #8d6800;
  cursor: pointer;
}

.map-unit > span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 5px solid #ffe89a;
  border-radius: 50%;
  background: var(--sun);
  box-shadow: var(--shadow-sm);
  color: #704e00;
  font-size: 21px;
  font-weight: 900;
}

.map-unit small {
  max-width: 90px;
  font-weight: 700;
  text-align: center;
}

.map-unit.is-current {
  color: #b7322a;
}

.map-unit.is-current > span {
  border-color: #ffd0cb;
  background: var(--coral);
  color: var(--paper);
}

.map-unit.is-open {
  color: var(--mint-dark);
}

.map-unit.is-open > span {
  border-color: #bcebdc;
  background: var(--mint);
  color: var(--paper);
}

.unit-1 { top: 4%; left: 4%; }
.unit-2 { top: 16%; left: 60%; }
.unit-3 { top: 35%; left: 78%; }
.unit-4 { top: 61%; left: 78%; }
.unit-5 { top: 78%; left: 56%; }
.unit-6 { top: 79%; left: 25%; }
.unit-7 { top: 60%; left: 6%; }
.unit-8 { top: 49%; left: 3%; }

.unit-lessons {
  position: absolute;
  z-index: 4;
  top: 14%;
  left: 4%;
  width: min(420px, 50%);
  padding: 14px;
  border-radius: 8px;
  background: #fff4f2;
}

.unit-lessons h2 {
  margin-bottom: 10px;
  color: var(--coral);
  font-size: 16px;
}

.map-lesson {
  min-height: 45px;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: rgb(255 255 255 / 72%);
}

.map-lesson + .map-lesson {
  margin-top: 6px;
}

.map-lesson.is-current {
  border-color: var(--coral);
  background: var(--paper);
}

.map-lesson.is-complete > span {
  background: var(--mint);
  color: var(--paper);
}

.map-lesson > span {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
}

.map-lesson small {
  color: var(--muted);
  font-size: 11px;
}

.inspector-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
}

.inspector-head h1 {
  margin: 8px 0 5px;
  font-size: 23px;
}

.inspector-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: 0 -18px 22px;
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
}

.inspector-tabs button {
  min-height: 44px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  font-size: 12px;
  cursor: pointer;
}

.inspector-tabs button.is-active {
  border-color: var(--cobalt);
  color: var(--cobalt);
  font-weight: 800;
}

.inspector-section + .inspector-section {
  margin-top: 24px;
}

.inspector-section h2 {
  margin-bottom: 10px;
  font-size: 13px;
  text-transform: uppercase;
}

.material-row,
.task-row {
  min-height: 56px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
}

.material-row > span:first-child,
.task-row > span:first-child {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 5px;
  background: var(--sky);
  color: var(--cobalt);
  font-weight: 800;
}

.material-row small,
.task-row small {
  display: block;
  color: var(--muted);
}

.inspector-primary {
  width: 100%;
  margin-top: 25px;
}

.teacher-lesson-page {
  background: var(--cloud);
}

.teacher-lesson-grid {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr) 320px;
  gap: 18px;
}

.lesson-flow,
.lesson-editor,
.lesson-assets {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
}

.lesson-flow h2,
.lesson-assets h2 {
  font-size: 17px;
}

.flow-step {
  width: 100%;
  min-height: 45px;
  display: grid;
  grid-template-columns: 28px 1fr;
  align-items: center;
  gap: 8px;
  padding: 7px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.flow-step.is-active {
  border-color: #b7cdf5;
  background: #edf3ff;
  color: var(--cobalt);
}

.flow-step span {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--cloud);
  font-size: 12px;
  font-weight: 800;
}

.lesson-editor h1 {
  font-size: 28px;
}

.objective-box {
  margin: 24px 0;
  padding: 18px;
  border-left: 4px solid var(--mint);
  background: var(--success-surface);
}

.activity-list {
  padding-left: 20px;
}

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

.lesson-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--line);
  background: var(--line);
}

.lesson-meta div {
  padding: 13px;
  background: var(--paper);
}

.lesson-meta dt {
  color: var(--muted);
  font-size: 12px;
}

.lesson-meta dd {
  margin: 2px 0 0;
  font-weight: 700;
}

.asset-block + .asset-block {
  margin-top: 22px;
}

.teacher-review-workspace {
  min-height: calc(100vh - 74px);
  display: grid;
  grid-template-columns: 278px minmax(430px, 1fr) 250px;
  background: var(--paper);
}

.review-queue {
  padding: 22px 14px;
  border-right: 1px solid var(--line);
  background: var(--paper);
}

.review-queue-head {
  padding: 0 8px 14px;
}

.review-queue-head h1 {
  margin-bottom: 6px;
  font-size: 22px;
}

.review-filter {
  width: 100%;
  min-height: 40px;
  margin-bottom: 12px;
  padding: 8px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--paper);
}

.submission-row {
  width: 100%;
  min-height: 78px;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 10px 8px;
  border: 1px solid transparent;
  border-bottom-color: var(--line);
  background: var(--paper);
  text-align: left;
  cursor: pointer;
}

.submission-row .status {
  grid-column: 2;
}

.submission-row.is-selected {
  border-color: var(--cobalt);
  border-radius: 5px;
  background: #f4f7ff;
}

.submission-row .avatar {
  width: 36px;
  height: 36px;
  flex-basis: 36px;
  font-size: 13px;
}

.submission-row strong,
.submission-row small {
  display: block;
}

.submission-row small {
  color: var(--muted);
  font-size: 12px;
}

.review-detail {
  min-width: 0;
  padding: 28px;
  background: var(--cloud);
}

.review-detail-card {
  min-height: calc(100vh - 130px);
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
}

.review-detail-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.review-detail-head h1 {
  margin: 7px 0 3px;
  font-size: 29px;
}

.answer-sheet {
  margin: 24px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--cloud);
}

.answer-sheet h2 {
  font-size: 15px;
  text-transform: uppercase;
}

.student-response {
  min-height: 120px;
  padding: 18px;
  border-left: 4px solid var(--cobalt);
  background: var(--paper);
  font-size: 18px;
}

.review-form {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
}

.field {
  display: grid;
  gap: 7px;
}

.field span {
  font-size: 13px;
  font-weight: 750;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 5px;
  background: var(--paper);
}

.field textarea {
  min-height: 128px;
  resize: vertical;
}

.field-full {
  grid-column: 1 / -1;
}

.review-form-actions {
  grid-column: 1 / -1;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.review-summary {
  padding: 24px 18px;
  border-left: 1px solid var(--line);
  background: var(--paper);
}

.review-summary h2 {
  font-size: 16px;
}

.summary-list {
  display: grid;
  gap: 14px;
  padding: 0;
  margin: 16px 0 24px;
  list-style: none;
}

.summary-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.summary-list span {
  color: var(--muted);
}

.empty-state {
  min-height: 420px;
  display: grid;
  place-content: center;
  justify-items: center;
  padding: 40px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  color: var(--ink);
  font-size: 24px;
}

.error-page {
  min-height: 100vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 12px;
  padding: 30px;
  text-align: center;
}

.dashboard-lesson-list {
  display: grid;
  gap: 6px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.dashboard-lesson-row {
  width: 100%;
  min-height: 54px;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.dashboard-lesson-row:hover,
.dashboard-lesson-row.is-current {
  border-color: #b7cdf5;
  background: #f3f7ff;
}

.dashboard-lesson-row > span:first-child {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--cobalt);
  color: var(--paper);
  font-size: 12px;
  font-weight: 800;
}

.dashboard-lesson-row strong,
.dashboard-lesson-row small {
  display: block;
}

.dashboard-lesson-row small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.path-step-button {
  width: 100%;
  grid-template-columns: 38px minmax(0, 1fr) 18px;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.path-step-button:hover,
.path-step-button.is-current {
  border-color: #9dbbef;
  background: #f3f7ff;
}

.path-step-button small {
  display: block;
  margin-top: 3px;
}

.teacher-lesson-tabs {
  display: flex;
  gap: 8px;
  margin: 0 0 18px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.teacher-lesson-tabs button {
  min-width: 150px;
  min-height: 52px;
  display: grid;
  justify-items: start;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.teacher-lesson-tabs button.is-active {
  border-color: var(--cobalt);
  background: #edf3ff;
  color: var(--cobalt);
}

.teacher-lesson-tabs small {
  color: var(--muted);
  font-size: 11px;
}

.teacher-builder-page {
  background: var(--cloud);
}

.builder-status-strip {
  min-height: 54px;
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
}

.builder-status-strip > span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.builder-status-strip > span strong {
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--cobalt);
  color: var(--paper);
  font-size: 11px;
}

.builder-status-strip .status {
  margin-left: auto;
  color: var(--ink);
}

.teacher-builder-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  align-items: start;
  gap: 18px;
}

.builder-form-panel,
.builder-preview-panel {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--paper);
}

.builder-preview-panel {
  position: sticky;
  top: 92px;
}

.builder-section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.builder-section-head h2 {
  margin: 3px 0 0;
  font-size: 22px;
}

.builder-field-grid,
.builder-language-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.builder-field-grid + .builder-field-grid,
.builder-field-grid + .field,
.builder-field-grid + .builder-section-head,
.field + .builder-section-head {
  margin-top: 22px;
}

.builder-language-head {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.builder-language-tabs,
.builder-preview-language {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--cloud);
}

.builder-language-tabs button,
.builder-preview-language button {
  min-height: 36px;
  padding: 7px 12px;
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.builder-language-tabs button.is-active,
.builder-preview-language button.is-active {
  background: var(--cobalt);
  color: var(--paper);
}

.builder-language-fields textarea {
  min-height: 104px;
}

.builder-preview-card {
  min-height: 430px;
  padding: 20px;
  border: 1px solid #b7cdf5;
  border-radius: 7px;
  background: linear-gradient(180deg, #f8fbff 0, var(--paper) 32%);
}

.builder-preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.builder-preview-card h2 {
  margin: 22px 0 12px;
  font-size: 23px;
  line-height: 1.24;
}

.builder-preview-card .choice-grid {
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 18px 0;
}

.builder-preview-card .choice {
  min-height: 50px;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  font-size: 15px;
}

.builder-preview-card .hint-box {
  margin-top: 20px;
}

.builder-match-preview {
  display: grid;
  gap: 8px;
  margin: 18px 0;
}

.builder-match-preview > span {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 8px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
}

.builder-match-preview small {
  color: var(--muted);
}

.builder-save-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 16px;
}

.builder-local-note {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 1320px) {
  :root {
    --sidebar-width: 180px;
  }

  .public-nav {
    gap: 20px;
  }

  .public-header {
    gap: 24px;
  }

  .skill-ribbon {
    grid-template-columns: 1.2fr repeat(5, 1fr);
  }

  .skill-item {
    padding-inline: 11px;
  }

  .teacher-layout {
    grid-template-columns: 170px minmax(0, 1fr);
  }

  .teacher-map-workspace {
    grid-template-columns: 250px minmax(440px, 1fr) 310px;
  }

  .teacher-review-workspace {
    grid-template-columns: 250px minmax(390px, 1fr) 220px;
  }

  .teacher-builder-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
  }
}

@media (max-width: 1080px) {
  .public-header {
    grid-template-columns: auto auto;
  }

  .public-nav {
    display: none;
  }

  .public-header-actions {
    justify-self: end;
  }

  .public-hero {
    background-position: 65% center;
  }

  .public-hero-copy {
    width: 58vw;
  }

  .skill-ribbon {
    grid-template-columns: repeat(3, 1fr);
    padding-block: 18px;
  }

  .skill-ribbon > strong {
    grid-column: 1 / -1;
  }

  .skill-item {
    border-left: 0;
  }

  .public-benefit-band {
    grid-template-columns: 1fr 1fr;
  }

  .public-callout {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
  }

  .student-layout,
  .teacher-layout {
    grid-template-columns: 156px minmax(0, 1fr);
  }

  .portal-sidebar {
    padding-inline: 8px;
  }

  .sidebar-nav a {
    padding-inline: 9px;
  }

  .student-dashboard-grid,
  .lesson-overview,
  .result-layout {
    grid-template-columns: 1fr;
  }

  .student-practice-layout {
    grid-template-columns: 300px minmax(0, 1fr);
  }

  .practice-journey {
    padding-inline: 24px;
  }

  .practice-journey h1 {
    font-size: 42px;
  }

  .teacher-map-workspace {
    grid-template-columns: 230px minmax(430px, 1fr);
  }

  .lesson-inspector {
    display: none;
  }

  .teacher-lesson-grid {
    grid-template-columns: 180px minmax(0, 1fr);
  }

  .lesson-assets {
    grid-column: 1 / -1;
  }

  .teacher-review-workspace {
    grid-template-columns: 230px minmax(0, 1fr);
  }

  .review-summary {
    display: none;
  }

  .teacher-builder-grid {
    grid-template-columns: 1fr;
  }

  .builder-preview-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  body {
    overscroll-behavior-y: contain;
  }

  .public-header {
    min-height: 66px;
    padding: max(8px, env(safe-area-inset-top)) max(18px, env(safe-area-inset-right)) 8px max(18px, env(safe-area-inset-left));
  }

  .public-brand {
    font-size: 19px;
  }

  .public-header-actions .header-link {
    display: none;
  }

  .public-header-actions .button {
    min-height: 40px;
    padding: 8px 11px;
    font-size: 13px;
  }

  .public-hero {
    min-height: 690px;
    align-items: start;
    padding: 44px 22px 330px;
    background-position: right bottom;
    background-size: auto 52%;
  }

  .public-hero-copy,
  .course-intro {
    width: 100%;
  }

  .public-hero h1 {
    font-size: 50px;
  }

  .public-hero h2 {
    font-size: 27px;
  }

  .hero-actions .button {
    width: 100%;
    min-width: 0;
  }

  .skill-ribbon {
    grid-template-columns: 1fr;
    padding: 20px 22px;
  }

  .skill-ribbon > strong {
    grid-column: auto;
  }

  .skill-item {
    padding: 10px 0;
  }

  .public-benefit-band,
  .benefit-columns {
    grid-template-columns: 1fr;
  }

  .benefit-column + .benefit-column {
    padding-top: 24px;
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .benefits-copy,
  .demo-preview,
  .public-callout {
    padding: 30px 22px;
  }

  .public-footer {
    align-items: flex-start;
    flex-direction: column;
    padding-inline: 22px;
  }

  .course-page {
    min-height: 900px;
    padding: 36px 22px 420px;
    background:
      linear-gradient(to bottom, var(--paper) 0 58%, transparent 58%),
      url("assets/learning-constellation.png") right bottom / auto 48% no-repeat;
  }

  .course-facts {
    grid-template-columns: 1fr;
  }

  .portal-topbar {
    height: auto;
    min-height: calc(68px + env(safe-area-inset-top));
    grid-template-columns: 1fr auto;
    padding: max(10px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) 10px max(14px, env(safe-area-inset-left));
  }

  .portal-brand {
    min-width: 0;
    font-size: 17px;
  }

  .course-chip,
  .star-score,
  .profile-menu span:last-child {
    display: none;
  }

  .topbar-tools {
    gap: 8px;
  }

  .instruction-switch {
    min-height: 44px;
    padding-left: 7px;
  }

  .instruction-switch-label {
    display: none;
  }

  .language-segment button {
    min-height: 34px;
  }

  .student-layout,
  .teacher-layout {
    display: block;
    min-height: calc(100dvh - 68px - env(safe-area-inset-top));
  }

  .portal-sidebar {
    position: fixed;
    z-index: 80;
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    min-height: 0;
    padding: 5px max(8px, env(safe-area-inset-right)) max(5px, env(safe-area-inset-bottom)) max(8px, env(safe-area-inset-left));
    border-right: 0;
    border-top: 1px solid var(--line);
    border-bottom: 0;
    box-shadow: 0 -8px 24px rgb(7 22 47 / 10%);
  }

  .portal-sidebar.dark::after,
  .sidebar-bottom,
  .teacher-sidebar-heading {
    display: none;
  }

  .sidebar-nav {
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
  }

  .portal-sidebar > .sidebar-nav:nth-of-type(n + 2) {
    display: none;
  }

  .sidebar-nav a {
    min-width: 0;
    min-height: 54px;
    justify-content: center;
    padding: 6px 4px;
    font-size: 11px;
    text-align: center;
  }

  .sidebar-nav a:nth-child(n + 5) {
    display: none;
  }

  .nav-glyph {
    display: none;
  }

  .portal-main,
  .teacher-content {
    padding-bottom: calc(72px + env(safe-area-inset-bottom));
  }

  .page-shell {
    width: calc(100% - 28px);
    padding: 26px 0 calc(34px + env(safe-area-inset-bottom));
  }

  .page-head {
    display: grid;
  }

  .page-head h1 {
    font-size: 32px;
  }

  .dashboard-hero {
    min-height: 475px;
    padding: 28px 24px;
    background-position: right top;
    background-size: auto 56%;
  }

  .dashboard-hero-copy {
    width: 100%;
  }

  .dashboard-hero h1 {
    font-size: 42px;
  }

  .today-assignment {
    right: 18px;
    bottom: 18px;
    left: 18px;
    grid-template-columns: 1fr;
  }

  .lesson-hero {
    padding: 28px 22px;
  }

  .lesson-hero::after {
    width: 210px;
    height: 150px;
  }

  .lesson-hero h1 {
    margin-top: 100px;
    font-size: 38px;
  }

  .student-practice-layout {
    display: block;
  }

  .practice-journey {
    display: none;
  }

  .practice-stage-head {
    grid-template-columns: 1fr;
    padding: 11px 14px;
  }

  .practice-head-actions {
    justify-content: space-between;
  }

  .practice-body {
    width: calc(100% - 24px);
    padding-top: 12px;
  }

  .exercise-card {
    min-height: 0;
    padding: 22px 16px;
  }

  .exercise-card-head {
    display: grid;
  }

  .exercise-card h1 {
    font-size: 27px;
  }

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

  .choice {
    min-height: 62px;
  }

  .matching-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .matching-row > span:nth-child(2) {
    display: none;
  }

  .exercise-actions,
  .feedback-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .feedback-main {
    grid-template-columns: 54px 1fr;
    padding: 20px 18px;
  }

  .feedback-main::after {
    display: none;
  }

  .feedback-icon {
    width: 52px;
    height: 52px;
    font-size: 28px;
  }

  .result-card {
    padding: 32px 20px;
  }

  .settings-row {
    grid-template-columns: 42px 1fr;
  }

  .settings-row > :last-child {
    grid-column: 1 / -1;
  }

  .pwa-install-button,
  .pwa-install-guide,
  .pwa-install-state {
    width: 100%;
    max-width: none;
    min-height: 44px;
  }

  .teacher-map-workspace {
    display: block;
  }

  .teacher-rail {
    display: none;
  }

  .map-canvas {
    min-height: 820px;
    padding: 20px 14px;
  }

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

  .constellation-map {
    min-height: 680px;
  }

  .unit-lessons {
    top: 12%;
    left: 0;
    width: 72%;
  }

  .unit-2 { left: 70%; }
  .unit-3 { top: 42%; left: 72%; }
  .unit-4 { top: 69%; left: 70%; }
  .unit-5 { top: 84%; left: 45%; }
  .unit-6 { top: 82%; left: 10%; }
  .unit-7 { top: 58%; left: 0; }
  .unit-8 { top: 38%; left: 0; }

  .teacher-lesson-grid {
    grid-template-columns: 1fr;
  }

  .lesson-flow,
  .lesson-assets {
    display: none;
  }

  .teacher-lesson-tabs {
    margin-inline: -2px;
  }

  .teacher-lesson-tabs button {
    min-width: 132px;
  }

  .builder-status-strip {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 9px 14px;
  }

  .builder-status-strip .status {
    width: 100%;
    margin-left: 0;
  }

  .builder-form-panel,
  .builder-preview-panel {
    padding: 18px 14px;
  }

  .builder-section-head {
    display: grid;
  }

  .builder-field-grid,
  .builder-language-fields,
  .builder-save-actions {
    grid-template-columns: 1fr;
  }

  .builder-language-tabs {
    width: 100%;
  }

  .builder-language-tabs button {
    min-width: 0;
    flex: 1;
  }

  .lesson-meta {
    grid-template-columns: 1fr;
  }

  .teacher-review-workspace {
    display: block;
  }

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

  .submission-list {
    display: grid;
    grid-auto-columns: minmax(230px, 80%);
    grid-auto-flow: column;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
  }

  .submission-row {
    border: 1px solid var(--line);
    border-radius: 5px;
  }

  .review-detail {
    padding: 14px;
  }

  .review-detail-card {
    min-height: 0;
    padding: 20px 16px;
  }

  .review-detail-head {
    display: grid;
  }

  .review-form {
    grid-template-columns: 1fr;
  }

  .field-full,
  .review-form-actions {
    grid-column: auto;
  }

  .review-form-actions {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (display-mode: standalone) {
  html,
  body {
    min-height: 100%;
    background: var(--cloud);
  }

  .portal,
  .public-site {
    min-height: 100dvh;
  }
}

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