:root {
  --ink: #20364b;
  --muted: #647789;
  --line: #dce5ec;
  --surface: #fff;
  --soft: #f4f7fa;
  --course-accent: #21599c;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: #edf2f6;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}

body.sidebar-open {
  overflow: hidden;
}

button,
select,
textarea {
  font: inherit;
}

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

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

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

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

.course-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 76px;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid #dbe4eb;
  background: rgba(255, 255, 255, .97);
  box-shadow: 0 7px 26px rgba(30, 61, 91, .08);
}

.back-catalog {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #4f687c;
  font-weight: 700;
}

.back-catalog span {
  color: var(--course-accent);
  font-size: 22px;
}

.course-brand img {
  width: 275px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

.course-switcher select {
  max-width: 260px;
  height: 40px;
  padding: 0 34px 0 12px;
  border: 1px solid #cbd8e1;
  border-radius: 4px;
  color: #39556c;
  background: #fff;
}

.student-view {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 10%, white);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.sidebar-toggle {
  display: none;
}

.course-shell {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 290px minmax(0, 1fr);
}

.course-sidebar {
  position: sticky;
  top: 76px;
  z-index: 60;
  height: calc(100vh - 76px);
  overflow-y: auto;
  border-right: 1px solid #dbe4eb;
  background: #fff;
}

.sidebar-course {
  padding: 20px;
  display: grid;
  grid-template-columns: 66px 1fr;
  align-items: center;
  gap: 13px;
  border-bottom: 1px solid #e4ebf0;
}

.sidebar-course img {
  width: 66px;
  height: 58px;
  object-fit: cover;
}

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

.sidebar-course span {
  margin-bottom: 4px;
  color: var(--course-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.sidebar-course strong {
  color: #263f55;
  font-size: 14px;
  line-height: 1.25;
}

.sidebar-progress {
  padding: 18px 20px;
  border-bottom: 1px solid #e4ebf0;
}

.sidebar-progress > div:first-child {
  margin-bottom: 9px;
  display: flex;
  justify-content: space-between;
  color: #627687;
  font-size: 13px;
}

.sidebar-progress strong {
  color: var(--course-accent);
}

.progress-track {
  height: 7px;
  overflow: hidden;
  border-radius: 99px;
  background: #e5ebf0;
}

.progress-track.large {
  height: 11px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  display: block;
  border-radius: inherit;
  background: var(--course-accent);
  transition: width .3s ease;
}

.course-navigation {
  padding: 12px 0 30px;
}

.course-navigation > button {
  position: relative;
  width: 100%;
  min-height: 49px;
  padding: 10px 19px;
  display: flex;
  align-items: center;
  gap: 12px;
  border: 0;
  border-left: 4px solid transparent;
  color: #4e6578;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.course-navigation > button:hover,
.course-navigation > button:focus-visible,
.course-navigation > button.active {
  outline: 0;
  border-left-color: var(--course-accent);
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 8%, white);
  font-weight: 700;
}

.nav-icon {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  color: var(--course-accent);
  font-size: 19px;
}

.unit-shortcuts {
  margin: 3px 14px 10px 28px;
  padding-left: 13px;
  display: grid;
  gap: 2px;
  border-left: 1px solid #dce5ec;
}

.unit-shortcuts button {
  min-height: 38px;
  padding: 7px 8px;
  display: grid;
  grid-template-columns: 22px 1fr;
  align-items: center;
  gap: 7px;
  border: 0;
  color: #6a7e8e;
  background: transparent;
  font-size: 12px;
  text-align: left;
  cursor: pointer;
}

.unit-shortcuts button span {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 11%, white);
  font-size: 10px;
  font-weight: 800;
}

.unit-shortcuts button:hover,
.unit-shortcuts button:focus-visible {
  outline: 0;
  color: var(--course-accent);
}

.course-main {
  min-width: 0;
  padding: 28px;
}

.course-view {
  max-width: 1320px;
  margin: 0 auto;
  animation: view-in .25s ease both;
}

.course-view[hidden] {
  display: none;
}

.course-hero {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  background: #274d70;
}

.course-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(14, 35, 55, .94) 0%, rgba(14, 35, 55, .82) 45%, rgba(14, 35, 55, .16) 100%),
    linear-gradient(0deg, rgba(14, 35, 55, .5), transparent 60%);
}

.course-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 730px;
  padding: 76px 62px;
  color: #fff;
}

.course-badges {
  margin-bottom: 20px;
  display: flex;
  gap: 9px;
}

.course-badges span {
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, .42);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.course-hero h1 {
  margin: 0 0 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(42px, 5vw, 68px);
  font-weight: 400;
  line-height: 1.03;
}

.course-hero-copy > p {
  max-width: 650px;
  margin: 0 0 28px;
  color: rgba(255, 255, 255, .88);
  font-size: 17px;
  line-height: 1.6;
}

.course-teacher {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.course-teacher span {
  color: rgba(255, 255, 255, .66);
  font-size: 13px;
}

.overview-grid {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, .75fr);
  gap: 24px;
}

.welcome-card,
.course-at-glance,
.content-card,
.recent-announcements,
.next-step,
.unit-map,
.forum-composer,
.forum-posts,
.progress-hero-card,
.progress-details,
.help-grid article {
  padding: 32px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 11px 30px rgba(31, 66, 98, .06);
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--course-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.welcome-card h2,
.course-at-glance h2,
.recent-announcements h2,
.next-step h2,
.content-card h2,
.unit-map h2,
.page-heading h1,
.forum-composer label,
.progress-details h2,
.help-grid h2 {
  margin: 0 0 15px;
  color: #243e55;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.welcome-card h2,
.course-at-glance h2,
.recent-announcements h2,
.next-step h2 {
  font-size: 27px;
}

.welcome-card > p:not(.eyebrow) {
  color: #5f7384;
  line-height: 1.75;
}

.primary-action,
.recent-announcements button,
.next-step button,
.forum-composer button,
.assessment-action {
  padding: 11px 15px;
  border: 0;
  color: #fff;
  background: var(--course-accent);
  font-weight: 700;
  cursor: pointer;
}

.primary-action {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.primary-action:hover,
.primary-action:focus-visible,
.recent-announcements button:hover,
.next-step button:hover,
.forum-composer button:hover,
.assessment-action:hover {
  filter: brightness(.9);
}

.course-at-glance dl,
.syllabus-facts dl,
.progress-details dl {
  margin: 0;
}

.course-at-glance dl {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.course-at-glance dl div {
  min-height: 88px;
  padding: 15px;
  background: var(--soft);
}

.course-at-glance dt,
.syllabus-facts dt,
.progress-details dt {
  color: #718493;
  font-size: 12px;
}

.course-at-glance dd {
  margin: 5px 0 0;
  color: var(--course-accent);
  font-family: Georgia, serif;
  font-size: 24px;
}

.overview-bottom {
  margin-top: 24px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: 24px;
}

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

.section-heading button {
  color: var(--course-accent);
  background: transparent;
}

.recent-announcements article {
  padding: 16px 0;
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.recent-announcements time,
.announcement-list time {
  color: var(--course-accent);
  font-size: 12px;
  font-weight: 800;
}

.recent-announcements h3 {
  margin: 0 0 6px;
}

.recent-announcements article p,
.next-step p {
  margin: 0;
  color: #637687;
}

.next-step {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: var(--course-accent);
}

.next-step .eyebrow,
.next-step h2,
.next-step p {
  position: relative;
  z-index: 1;
  color: #fff;
}

.next-icon {
  position: absolute;
  top: 18px;
  right: 20px;
  width: 92px;
  height: 92px;
  color: rgba(255, 255, 255, .13);
  background: currentColor;
}

.next-step button {
  position: relative;
  z-index: 1;
  margin-top: 27px;
  border: 1px solid rgba(255, 255, 255, .55);
  background: transparent;
}

.page-heading {
  margin: 12px 0 30px;
  padding: 0 4px;
}

.page-heading h1 {
  margin-bottom: 8px;
  font-size: clamp(36px, 4vw, 52px);
}

.page-heading > p:last-child {
  max-width: 720px;
  margin: 0;
  color: #66798a;
  font-size: 17px;
}

.syllabus-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr);
  gap: 24px;
}

.content-card {
  position: relative;
}

.card-index {
  position: absolute;
  top: 20px;
  right: 24px;
  color: color-mix(in srgb, var(--course-accent) 22%, white);
  font-family: Georgia, serif;
  font-size: 58px;
}

.content-card h2 {
  font-size: 30px;
}

.syllabus-copy > p {
  position: relative;
  z-index: 1;
  color: #566d80;
  font-size: 16px;
  line-height: 1.85;
}

.syllabus-facts dl div,
.progress-details dl div {
  padding: 13px 0;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 15px;
  border-bottom: 1px solid var(--line);
}

.syllabus-facts dd,
.progress-details dd {
  margin: 0;
  color: #314d64;
  font-weight: 700;
}

.syllabus-welcome {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, .7fr);
  gap: 42px;
  border-radius: 28px;
  color: #fff;
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 255, 255, .22), transparent 28%),
    linear-gradient(135deg, color-mix(in srgb, var(--course-accent) 78%, #092b43), #092b43);
  box-shadow: 0 28px 70px color-mix(in srgb, var(--course-accent) 22%, transparent);
}

.syllabus-welcome::after {
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 44% 56% 61% 39%;
  content: "";
  animation: syllabus-orbit 16s linear infinite;
}

.syllabus-welcome > * {
  position: relative;
  z-index: 1;
}

.syllabus-welcome > div > span,
.syllabus-section > header span {
  display: block;
  margin-bottom: 10px;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.syllabus-welcome h2 {
  max-width: 760px;
  margin: 0 0 18px;
  color: #fff;
  font-size: clamp(2rem, 4vw, 4.3rem);
  line-height: .98;
}

.syllabus-welcome p {
  max-width: 780px;
  margin: 0;
  color: rgba(255, 255, 255, .82);
  font-size: 1rem;
  line-height: 1.8;
}

.syllabus-welcome dl {
  align-self: end;
  margin: 0;
  display: grid;
  gap: 1px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 18px;
  background: rgba(255, 255, 255, .08);
  backdrop-filter: blur(10px);
}

.syllabus-welcome dl div {
  padding: 14px 16px;
  display: grid;
  gap: 3px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.syllabus-welcome dl div:last-child {
  border-bottom: 0;
}

.syllabus-welcome dt {
  color: rgba(255, 255, 255, .58);
  font-size: .68rem;
  font-weight: 850;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.syllabus-welcome dd {
  margin: 0;
  font-weight: 800;
}

.syllabus-section-nav {
  position: sticky;
  top: 80px;
  z-index: 8;
  overflow-x: auto;
  margin: 22px 0;
  padding: 8px;
  display: flex;
  gap: 8px;
  border: 1px solid rgba(210, 224, 234, .9);
  border-radius: 18px;
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 12px 35px rgba(28, 61, 87, .08);
  backdrop-filter: blur(16px);
  scrollbar-width: thin;
}

.syllabus-section-nav button {
  flex: 0 0 auto;
  padding: 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 0;
  border-radius: 12px;
  color: #3d576b;
  background: transparent;
  font: inherit;
  font-size: .78rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform .2s ease, color .2s ease, background .2s ease;
}

.syllabus-section-nav button:hover,
.syllabus-section-nav button:focus-visible {
  outline: 0;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 9%, white);
  transform: translateY(-2px);
}

.syllabus-section-nav button span {
  color: var(--course-accent);
  font-family: Georgia, serif;
  font-size: 1rem;
}

.syllabus-studio {
  display: grid;
  gap: 22px;
}

.syllabus-section {
  position: relative;
  overflow: hidden;
  scroll-margin-top: 170px;
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid #dce7ee;
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(29, 62, 87, .065);
}

.syllabus-section > header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.syllabus-section > header span {
  color: var(--course-accent);
}

.syllabus-section > header h2 {
  margin: 0;
  color: #173c55;
  font-size: clamp(1.65rem, 3vw, 2.8rem);
  line-height: 1.05;
}

.syllabus-section > header > strong {
  color: color-mix(in srgb, var(--course-accent) 16%, white);
  font-family: Georgia, serif;
  font-size: clamp(3.5rem, 8vw, 7.5rem);
  font-weight: 400;
  line-height: .75;
}

.syllabus-section-intro {
  max-width: 900px;
  margin: 20px 0 28px;
  color: #637888;
  font-size: 1rem;
  line-height: 1.8;
}

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

.syllabus-items article {
  position: relative;
  min-width: 0;
  padding: 22px;
  display: flex;
  flex-direction: column;
  border: 1px solid #dfE8ee;
  border-radius: 18px;
  background: linear-gradient(160deg, #fff, #f7fafc);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.syllabus-items article:hover {
  border-color: color-mix(in srgb, var(--course-accent) 35%, #dfe8ee);
  box-shadow: 0 18px 34px rgba(29, 65, 91, .09);
  transform: translateY(-4px);
}

.syllabus-item-top {
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.syllabus-item-top > span {
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 9%, white);
  font-size: .67rem;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.syllabus-item-top small {
  color: #7d909e;
  font-size: .7rem;
  font-weight: 750;
}

.syllabus-items h3 {
  margin: 0 0 10px;
  color: #25475f;
  font-size: 1.18rem;
}

.syllabus-items article > p {
  flex: 1;
  margin: 0;
  color: #657a89;
  line-height: 1.7;
}

.syllabus-items article > button,
.syllabus-items article > a {
  width: fit-content;
  margin-top: 18px;
  padding: 9px 0;
  border: 0;
  color: var(--course-accent);
  background: transparent;
  font: inherit;
  font-size: .78rem;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.syllabus-items article > button span,
.syllabus-items article > a span {
  display: inline-block;
  margin-left: 5px;
  transition: transform .2s ease;
}

.syllabus-items article > button:hover span,
.syllabus-items article > a:hover span {
  transform: translateX(4px);
}

.syllabus-style-feature {
  background:
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--course-accent) 10%, transparent), transparent 36%),
    #fff;
}

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

.syllabus-style-timeline .syllabus-items {
  position: relative;
  grid-template-columns: 1fr;
  padding-left: 28px;
}

.syllabus-style-timeline .syllabus-items::before {
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 8px;
  width: 2px;
  background: color-mix(in srgb, var(--course-accent) 24%, #dce7ee);
  content: "";
}

.syllabus-style-timeline .syllabus-items article {
  min-height: 140px;
}

.syllabus-style-timeline .syllabus-items article::before {
  position: absolute;
  top: 28px;
  left: -28px;
  width: 14px;
  height: 14px;
  border: 4px solid #fff;
  border-radius: 50%;
  background: var(--course-accent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--course-accent) 35%, white);
  content: "";
}

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

.syllabus-style-stats .syllabus-item-top > span {
  padding: 0;
  color: var(--course-accent);
  background: transparent;
  font-family: Georgia, serif;
  font-size: 2.2rem;
  letter-spacing: -.03em;
  text-transform: none;
}

@keyframes syllabus-orbit {
  to {
    transform: rotate(1turn);
  }
}

.unit-map {
  margin-top: 24px;
}

.unit-map > div {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.unit-map button {
  min-height: 145px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  border: 1px solid var(--line);
  color: #38556c;
  background: var(--soft);
  text-align: left;
  cursor: pointer;
}

.unit-map button:hover,
.unit-map button:focus-visible {
  outline: 0;
  border-color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 8%, white);
}

.unit-map button span {
  margin-bottom: auto;
  color: var(--course-accent);
  font-family: Georgia, serif;
  font-size: 28px;
}

.unit-map button strong {
  margin-bottom: 8px;
}

.unit-map button small {
  color: #728596;
}

.units-list {
  display: grid;
  gap: 16px;
}

.unit-card {
  border: 1px solid var(--line);
  background: #fff;
  scroll-margin-top: 96px;
  box-shadow: 0 10px 30px rgba(32, 65, 96, .05);
}

.unit-card[open] {
  border-top: 4px solid var(--course-accent);
}

.unit-card summary {
  min-height: 92px;
  padding: 18px 24px;
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 17px;
  list-style: none;
  cursor: pointer;
}

.unit-card summary::-webkit-details-marker {
  display: none;
}

.unit-number {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 10%, white);
  font-family: Georgia, serif;
  font-size: 20px;
}

.unit-title small,
.unit-title strong {
  display: block;
}

.unit-title small {
  color: #7c8d9b;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.unit-title strong {
  color: #29475e;
  font-family: Georgia, serif;
  font-size: 22px;
  font-weight: 400;
}

.unit-count {
  color: #718492;
  font-size: 13px;
}

.unit-content {
  padding: 0 24px 25px 97px;
}

.unit-content > p {
  margin: 0 0 18px;
  color: #647787;
}

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

.lesson-row {
  min-height: 65px;
  padding: 10px 14px;
  display: grid;
  grid-template-columns: 25px 1fr auto;
  align-items: center;
  gap: 12px;
  border: 1px solid #e0e7ed;
  background: #f9fbfc;
  cursor: pointer;
}

.lesson-row input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.lesson-check {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 2px solid #aab9c5;
  border-radius: 50%;
}

.lesson-row input:checked + .lesson-check {
  border-color: var(--course-accent);
  background: var(--course-accent);
}

.lesson-row input:checked + .lesson-check::after {
  content: "✓";
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.lesson-row:has(input:checked) {
  border-color: color-mix(in srgb, var(--course-accent) 38%, white);
  background: color-mix(in srgb, var(--course-accent) 6%, white);
}

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

.lesson-copy strong {
  color: #38536a;
}

.lesson-copy small {
  margin-top: 2px;
  color: #7a8b99;
}

.lesson-arrow {
  color: var(--course-accent);
}

.lesson-module {
  overflow: hidden;
  border: 1px solid #dde7ee;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(31, 66, 92, .06);
}

.lesson-module .lesson-row {
  min-height: 78px;
  border: 0;
  background: #f7fafc;
}

.lesson-module .lesson-copy small {
  margin: 0 0 4px;
  color: var(--course-accent);
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.lesson-module .lesson-copy strong {
  color: #29475e;
  font-family: Georgia, serif;
  font-size: 1.12rem;
}

.lesson-module-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  padding: 1px;
  background: #e6edf2;
}

.lesson-module-grid section {
  padding: 18px;
  background: #fff;
}

.lesson-module-grid span {
  color: var(--course-accent);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.lesson-module-grid p {
  margin: 7px 0 0;
  color: #566d7d;
  font-size: .88rem;
  line-height: 1.65;
}

.lesson-module footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 18px 18px;
}

.lesson-module footer a,
.lesson-module footer button {
  min-height: 42px;
  padding: 10px 13px;
  border: 1px solid color-mix(in srgb, var(--course-accent) 32%, #dce7ee);
  color: #31536a;
  background: #f7fbfd;
  font: inherit;
  font-size: .78rem;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
}

.lesson-module footer a:hover,
.lesson-module footer button:hover {
  color: #fff;
  background: var(--course-accent);
}

.agenda,
.announcement-list {
  display: grid;
  gap: 12px;
}

.agenda-item {
  min-height: 105px;
  padding: 20px;
  display: grid;
  grid-template-columns: 75px 1fr auto;
  align-items: center;
  gap: 22px;
  border: 1px solid var(--line);
  background: #fff;
}

.agenda-date {
  height: 65px;
  display: grid;
  place-items: center;
  align-content: center;
  color: #fff;
  background: var(--course-accent);
}

.agenda-date span {
  font-family: Georgia, serif;
  font-size: 25px;
}

.agenda-date small {
  font-size: 10px;
  text-transform: uppercase;
}

.tool-tag,
.status-pill {
  width: fit-content;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.tool-tag {
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 10%, white);
}

.status-pill {
  color: #347251;
  background: #e7f4ec;
}

.agenda-item h2 {
  margin: 6px 0 2px;
  color: #29485f;
  font-size: 20px;
}

.agenda-item p {
  margin: 0;
  color: #718391;
  font-size: 13px;
}

.calendar-app {
  overflow: hidden;
  border: 1px solid #dce7ee;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 18px 50px rgba(25, 60, 86, .08);
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 22px;
  color: #fff;
  background: linear-gradient(115deg, #173e60, var(--course-accent));
}

.calendar-toolbar span {
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
  opacity: .78;
}

.calendar-toolbar h2 {
  margin: 4px 0 0;
  font-family: Georgia, serif;
  font-size: 1.7rem;
  text-transform: capitalize;
}

.calendar-toolbar > div:last-child {
  display: flex;
  gap: 7px;
}

.calendar-toolbar button {
  min-width: 42px;
  height: 42px;
  padding: 0 13px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 10px;
  color: #fff;
  background: rgba(255, 255, 255, .1);
  font: inherit;
  font-weight: 850;
  cursor: pointer;
}

.calendar-toolbar button:hover {
  color: #173e60;
  background: #fff;
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays {
  border-bottom: 1px solid #e4ebf0;
  background: #f4f8fa;
}

.calendar-weekdays span {
  padding: 11px 8px;
  color: #657b8b;
  font-size: .7rem;
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
}

.calendar-grid {
  gap: 1px;
  background: #e3ebf0;
}

.calendar-grid button {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 112px;
  padding: 10px;
  flex-direction: column;
  gap: 6px;
  overflow: hidden;
  border: 0;
  color: #31516a;
  background: #fff;
  text-align: left;
  cursor: pointer;
}

.calendar-grid button > span {
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 50%;
  font-weight: 900;
}

.calendar-grid button small {
  overflow: hidden;
  padding: 5px 6px;
  border-left: 3px solid var(--course-accent);
  color: #38566d;
  background: color-mix(in srgb, var(--course-accent) 8%, white);
  font-size: .63rem;
  font-weight: 800;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.calendar-grid button i {
  color: var(--course-accent);
  font-size: .65rem;
  font-style: normal;
  font-weight: 900;
}

.calendar-grid button.is-outside {
  color: #aebbc4;
  background: #f7f9fa;
}

.calendar-grid button.is-today > span {
  color: #fff;
  background: #173e60;
}

.calendar-grid button.is-selected {
  z-index: 1;
  outline: 3px solid var(--course-accent);
  outline-offset: -3px;
}

.calendar-selected-agenda {
  display: grid;
  grid-template-columns: minmax(220px, .55fr) minmax(0, 1.45fr);
  gap: 22px;
  padding: 22px;
  border-top: 1px solid #dce7ee;
  background: #f8fbfc;
}

.calendar-selected-agenda > div:first-child span {
  color: var(--course-accent);
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.calendar-selected-agenda h2 {
  margin: 6px 0 0;
  color: #294b64;
  font-family: Georgia, serif;
  font-size: 1.25rem;
  text-transform: capitalize;
}

[data-calendar-selected-events] {
  display: grid;
  gap: 8px;
}

[data-calendar-selected-events] > p {
  margin: 0;
  color: #6e8291;
}

[data-calendar-selected-events] article {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
  border: 1px solid #dce7ee;
  border-radius: 10px;
  background: #fff;
}

[data-calendar-selected-events] article span,
[data-calendar-selected-events] article small {
  color: var(--course-accent);
  font-size: .68rem;
  font-weight: 850;
}

.assessment-guide {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}

.assessment-guide article {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 10px;
  padding: 15px;
  border: 1px solid #dce7ee;
  border-radius: 12px;
  background: #f8fbfc;
}

.assessment-guide article > span {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  background: var(--course-accent);
  font-size: .72rem;
  font-weight: 900;
}

.assessment-guide article > .ui-icon {
  border-radius: 0;
  background: var(--course-accent);
}

.assessment-guide strong {
  color: #294b64;
  font-size: .86rem;
}

.assessment-guide p {
  margin: 5px 0 0;
  color: #6b7f8f;
  font-size: .75rem;
  line-height: 1.5;
}

.assessment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.assessment-card {
  position: relative;
  min-height: 305px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 5px solid var(--course-accent);
  background: #fff;
}

.assessment-index {
  position: absolute;
  right: 20px;
  bottom: -28px;
  color: color-mix(in srgb, var(--course-accent) 10%, white);
  font-family: Georgia, serif;
  font-size: 110px;
}

.assessment-card h2,
.announcement-list h2 {
  position: relative;
  margin: 17px 0 10px;
  color: #29475e;
  font-family: Georgia, serif;
  font-size: 24px;
  font-weight: 400;
}

.assessment-card > p,
.assessment-card > div {
  position: relative;
  margin: 0 0 8px;
  color: #6a7d8c;
}

.status-dot {
  width: 8px;
  height: 8px;
  margin-right: 7px;
  display: inline-block;
  border-radius: 50%;
  background: #4aa26d;
}

.assessment-card > .assessment-methods {
  display: grid;
  gap: 7px;
  margin: 9px 0 13px;
  padding: 11px;
  border: 1px solid #e1e9ef;
  border-radius: 10px;
  background: #f7fafc;
}

.assessment-methods > span {
  color: #607787;
  font-size: .67rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.assessment-methods > div {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}

.assessment-methods small {
  padding: 5px 7px;
  border-radius: 999px;
  color: var(--course-accent);
  background: color-mix(in srgb, var(--course-accent) 9%, white);
  font-size: .67rem;
  font-weight: 850;
}

.assessment-action {
  position: relative;
  width: fit-content;
  margin-top: auto;
}

.forum-layout {
  display: grid;
  grid-template-columns: minmax(320px, .7fr) minmax(0, 1.3fr);
  gap: 24px;
}

.forum-composer label {
  display: block;
  font-size: 27px;
}

.forum-composer textarea {
  width: 100%;
  padding: 13px;
  resize: vertical;
  border: 1px solid #cbd7e0;
  color: #304d64;
  background: #fbfcfd;
}

.forum-composer textarea:focus {
  outline: 3px solid color-mix(in srgb, var(--course-accent) 15%, transparent);
  border-color: var(--course-accent);
}

.forum-composer > div {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.forum-composer small {
  color: #7b8c99;
}

.forum-posts {
  min-height: 320px;
}

.forum-post {
  padding: 17px 0;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 13px;
  border-bottom: 1px solid var(--line);
}

.forum-avatar {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--course-accent);
  font-weight: 800;
}

.forum-post strong,
.forum-post time {
  display: block;
}

.forum-post time {
  color: #83929e;
  font-size: 11px;
}

.forum-post p {
  margin: 7px 0 0;
  color: #536b7e;
}

.announcement-list article {
  padding: 25px;
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  border-left: 5px solid var(--course-accent);
  background: #fff;
}

.announcement-list h2 {
  margin-top: 0;
}

.announcement-list p {
  margin: 0;
  color: #5c7284;
}

.progress-dashboard {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr);
  gap: 24px;
}

.progress-hero-card > span {
  color: #718493;
  font-size: 13px;
}

.progress-hero-card > strong {
  margin: 8px 0 18px;
  display: block;
  color: var(--course-accent);
  font-family: Georgia, serif;
  font-size: 72px;
  font-weight: 400;
}

.progress-message {
  margin: 20px 0 0;
  color: #637788;
}

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

.help-grid article {
  position: relative;
  min-height: 210px;
}

.help-grid article > span {
  color: var(--course-accent);
  font-family: Georgia, serif;
  font-size: 32px;
}

.help-grid article > .ui-icon {
  width: 29px;
  height: 29px;
  background: currentColor;
}

.help-grid h2 {
  margin: 15px 0 8px;
  font-size: 24px;
}

.help-grid p,
.empty-tool p {
  margin: 0;
  color: #65798a;
}

.empty-tool {
  padding: 30px;
  border: 1px dashed #bdcbd5;
  color: #38556c;
  background: #f8fafb;
  text-align: center;
}

.course-toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 200;
  max-width: 420px;
  padding: 15px 18px;
  color: #fff;
  background: #1f3c54;
  box-shadow: 0 15px 45px rgba(14, 38, 59, .28);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .2s ease, transform .2s ease;
}

.course-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.quick-access {
  margin-top: 26px;
  padding: 26px;
  background: #fff;
  box-shadow: 0 12px 38px rgba(21, 52, 76, .08);
}

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

.quick-access-grid button {
  display: grid;
  min-height: 145px;
  padding: 20px;
  border: 1px solid #dce6ec;
  color: #17364e;
  background: linear-gradient(145deg, #fff, #f3f8fb);
  text-align: left;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.quick-access-grid button:hover {
  transform: translateY(-4px);
  border-color: var(--course-accent);
  box-shadow: 0 16px 30px rgba(23, 54, 78, .1);
}

.quick-access-grid button > span {
  color: var(--course-accent);
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .12em;
}

.quick-access-grid button > .ui-icon {
  width: 27px;
  height: 27px;
  background: currentColor;
  letter-spacing: 0;
}

.quick-access-grid strong {
  margin-top: auto;
  font-size: 1.08rem;
}

.quick-access-grid small {
  margin-top: 7px;
  color: #587086;
  line-height: 1.4;
}

.video-library {
  display: grid;
  grid-template-columns: minmax(0, 1.75fr) minmax(320px, .8fr);
  overflow: hidden;
  background: #0e2131;
  box-shadow: 0 22px 55px rgba(12, 35, 52, .2);
}

.video-stage {
  min-width: 0;
}

.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #07141f;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-stage-copy {
  padding: 24px 28px 30px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 0%, color-mix(in srgb, var(--course-accent) 60%, transparent), transparent 38%),
    #10283a;
}

.video-stage-copy > span {
  color: #86d5ff;
  font-size: .75rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.video-stage-copy h2 {
  margin: 8px 0;
  color: #fff;
  font-size: clamp(1.35rem, 2vw, 2rem);
}

.video-stage-copy p {
  margin: 0;
  color: #b9cbd7;
}

.video-playlist {
  overflow: auto;
  max-height: 720px;
  padding: 22px 16px;
  border-left: 1px solid rgba(255, 255, 255, .1);
  color: #fff;
  background: #0b1b28;
}

.video-playlist > div {
  display: flex;
  justify-content: space-between;
  padding: 4px 10px 18px;
  color: #93a9b8;
  font-size: .78rem;
}

.video-playlist > div strong {
  color: #fff;
}

.video-playlist button {
  display: grid;
  grid-template-columns: 34px 1fr 28px;
  gap: 12px;
  align-items: center;
  width: 100%;
  margin: 4px 0;
  padding: 16px 12px;
  border: 1px solid transparent;
  color: #c5d3dc;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}

.video-playlist button:hover,
.video-playlist button.is-active {
  border-color: rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .08);
}

.video-playlist button > span:first-child {
  color: #6d8798;
  font-weight: 900;
}

.video-playlist button > span:nth-child(2) {
  display: grid;
  gap: 5px;
}

.video-playlist button strong {
  color: #fff;
  line-height: 1.3;
}

.video-playlist button small {
  color: #849cab;
}

.video-playlist button i {
  display: grid;
  width: 27px;
  height: 27px;
  border-radius: 50%;
  place-items: center;
  color: #fff;
  background: var(--course-accent);
  font-size: .65rem;
  font-style: normal;
}

.campaign-overview {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
  gap: 1px;
  margin-bottom: 24px;
  color: #fff;
  background: rgba(129, 226, 255, .17);
  box-shadow: 0 18px 50px rgba(13, 35, 53, .12);
}

.campaign-overview-copy {
  padding: clamp(26px, 4vw, 48px);
  background:
    radial-gradient(circle at 90% 10%, color-mix(in srgb, var(--course-accent) 52%, transparent), transparent 34%),
    #0b2234;
}

.campaign-overview-copy > span {
  color: #75def7;
  font-size: .7rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.campaign-overview-copy h2 {
  margin: 10px 0;
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
}

.campaign-overview-copy > p {
  max-width: 780px;
  margin: 0;
  color: #aec5d0;
  line-height: 1.7;
}

.campaign-flow {
  display: flex;
  gap: 9px;
  align-items: center;
  margin-top: 25px;
}

.campaign-flow span {
  display: flex;
  gap: 8px;
  align-items: center;
  color: #d9eaf0;
  font-size: .74rem;
  font-weight: 800;
}

.campaign-flow i {
  display: grid;
  width: 30px;
  height: 30px;
  border: 1px solid rgba(117, 222, 247, .45);
  border-radius: 50%;
  place-items: center;
  color: #75def7;
  font-size: .6rem;
  font-style: normal;
}

.campaign-flow i.ui-icon {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 0;
  background: currentColor;
}

.campaign-flow b {
  color: #567686;
}

.campaign-overview-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #0d2a3f;
}

.campaign-overview-stats article {
  display: grid;
  align-content: center;
  gap: 8px;
  min-height: 140px;
  padding: 20px;
  border-right: 1px solid rgba(129, 226, 255, .13);
  text-align: center;
}

.campaign-overview-stats article:last-child {
  border-right: 0;
}

.campaign-overview-stats strong {
  color: #75def7;
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.campaign-overview-stats span {
  color: #87a4b1;
  font-size: .68rem;
  font-weight: 800;
  line-height: 1.35;
  text-transform: uppercase;
}

.game-catalog {
  display: grid;
  gap: 24px;
}

.topic-game-routes {
  display: grid;
  gap: 34px;
}

.topic-game-route {
  scroll-margin-top: 94px;
  padding: 24px;
  border: 1px solid #dce7ee;
  border-radius: 18px;
  background: #f7fafc;
}

.topic-game-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 26px;
  align-items: end;
  margin-bottom: 20px;
}

.topic-game-heading > div > span {
  color: var(--course-accent);
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.topic-game-heading h2 {
  margin: 6px 0 8px;
  color: #24465f;
  font-family: Georgia, serif;
  font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.topic-game-heading p {
  max-width: 730px;
  margin: 0;
  color: #647989;
  line-height: 1.6;
}

.topic-game-heading dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(96px, 1fr));
  gap: 1px;
  margin: 0;
  background: #dce7ee;
}

.topic-game-heading dl div {
  display: grid;
  gap: 5px;
  padding: 12px;
  background: #fff;
}

.topic-game-heading dt {
  color: #78909f;
  font-size: .62rem;
  font-weight: 900;
  text-transform: uppercase;
}

.topic-game-heading dd {
  margin: 0;
  color: #24465f;
  font-weight: 900;
}

.topic-game-route .game-catalog {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.topic-game-route .game-card {
  grid-template-columns: minmax(190px, .78fr) minmax(0, 1.22fr);
  min-height: 320px;
  box-shadow: 0 15px 38px rgba(13, 35, 53, .14);
}

.topic-game-route .game-card:nth-child(even) .game-card-scene,
.topic-game-route .game-card:nth-child(even) .game-card-copy {
  grid-column: auto;
  grid-row: auto;
}

.topic-game-route .game-card-scene {
  min-height: 320px;
}

.topic-game-route .scene-mascot {
  width: 106px;
  height: 106px;
  font-size: 3.2rem;
}

.topic-game-route .scene-kind {
  top: calc(23% + 116px);
}

.topic-game-route .game-card-copy {
  padding: 24px;
}

.topic-game-route .game-card-copy h2 {
  font-size: 1.5rem;
}

.topic-game-route .game-card-copy > p {
  margin-bottom: 14px;
  font-size: .84rem;
}

.topic-game-route .game-card-copy dl {
  grid-template-columns: 1fr;
  gap: 6px;
  margin-bottom: 16px;
}

.topic-game-route .game-card-copy dl div {
  padding: 9px 10px;
}

.topic-game-route .game-card-copy dl div:nth-child(2) {
  display: none;
}

.mission-kind {
  align-self: flex-start;
  margin-top: 8px;
  padding: 5px 8px;
  border: 1px solid rgba(124, 230, 255, .28);
  color: #d9f9ff;
  font-size: .65rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.game-card.is-completed {
  outline: 3px solid #62d5a7;
}

.game-card.is-completed .mission-kind::after {
  content: " · completada";
  color: #8bf1c4;
}

.game-card.is-locked {
  filter: grayscale(.62);
}

.game-card.is-locked [data-game-link] {
  color: #8ca0ac;
  background: #253746;
  cursor: not-allowed;
}

.mission-lock-message {
  margin: 9px 0 0 !important;
  color: #ffc27c !important;
  font-size: .74rem !important;
}

.game-card {
  display: grid;
  grid-template-columns: minmax(340px, .9fr) minmax(0, 1.1fr);
  min-height: 390px;
  overflow: hidden;
  color: #fff;
  background: #0b1b2b;
  box-shadow: 0 22px 60px rgba(13, 35, 53, .2);
}

.game-card-scene {
  position: relative;
  overflow: hidden;
  min-height: 360px;
  perspective: 800px;
  background:
    radial-gradient(circle at 50% 45%, rgba(58, 202, 255, .3), transparent 27%),
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--course-accent) 80%, transparent), transparent 35%),
    linear-gradient(145deg, #172950, #070d20);
}

.scene-grid {
  position: absolute;
  inset: 50% -35% -40%;
  background-image:
    linear-gradient(rgba(86, 220, 255, .24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(86, 220, 255, .24) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: rotateX(67deg);
  transform-origin: top;
  animation: game-grid 5s linear infinite;
}

.scene-orb {
  position: absolute;
  top: 24%;
  left: 50%;
  width: 128px;
  height: 128px;
  border: 2px solid #93edff;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 28%, #fff, #59ddff 9%, #3153d8 38%, #6c26be 73%);
  box-shadow: 0 0 30px #57dbff, 0 0 80px rgba(78, 70, 255, .8);
  transform: translateX(-50%);
  animation: game-float 3s ease-in-out infinite;
}

.scene-ring {
  position: absolute;
  top: calc(24% + 45px);
  left: 50%;
  width: 215px;
  height: 55px;
  border: 4px solid rgba(151, 238, 255, .75);
  border-radius: 50%;
  transform: translateX(-50%) rotateX(66deg) rotateZ(-8deg);
  box-shadow: 0 0 18px #4ee4ff;
  animation: game-spin 5s linear infinite;
}

.scene-cube {
  position: absolute;
  width: 52px;
  height: 52px;
  border: 1px solid rgba(255, 255, 255, .7);
  background: linear-gradient(145deg, rgba(133, 228, 255, .75), rgba(91, 31, 210, .5));
  box-shadow: 0 0 24px rgba(70, 214, 255, .6);
  transform: rotateX(55deg) rotateZ(45deg);
  animation: game-cube 4s ease-in-out infinite;
}

.cube-one {
  top: 20%;
  left: 18%;
}

.cube-two {
  right: 16%;
  bottom: 25%;
  width: 38px;
  height: 38px;
  animation-delay: -2s;
}

.game-card-scene > strong {
  position: absolute;
  right: 8%;
  bottom: 8%;
  left: 8%;
  padding: 13px;
  border: 1px solid rgba(255, 255, 255, .2);
  color: #d9f7ff;
  background: rgba(7, 15, 36, .62);
  backdrop-filter: blur(8px);
  text-align: center;
  font-family: Consolas, monospace;
  font-size: clamp(1rem, 2vw, 1.35rem);
}

.scene-mascot {
  position: absolute;
  top: 23%;
  left: 50%;
  z-index: 3;
  display: grid;
  width: 145px;
  height: 145px;
  border: 7px solid rgba(255, 255, 255, .18);
  border-radius: 34%;
  place-items: center;
  color: #1b3652;
  background: linear-gradient(145deg, #fff, #bcefff);
  box-shadow: 0 24px 55px rgba(0, 0, 0, .25), 0 0 50px rgba(87, 219, 255, .35);
  font-family: Consolas, monospace;
  font-size: 4.7rem;
  transform: translateX(-50%) rotate(-5deg);
  animation: game-float 3s ease-in-out infinite;
}

.scene-kind {
  position: absolute;
  top: calc(23% + 158px);
  left: 50%;
  z-index: 4;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 999px;
  color: #fff;
  background: rgba(5, 18, 34, .7);
  font-size: .62rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
  transform: translateX(-50%);
  white-space: nowrap;
}

.game-card .scene-orb {
  opacity: .18;
}

.game-card.challenge-sequence .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(83, 214, 255, .35), transparent 29%),
    linear-gradient(145deg, #1c4f78, #101b3e);
}

.game-card.challenge-robot .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(77, 224, 181, .32), transparent 29%),
    linear-gradient(145deg, #176562, #10233d);
}

.game-card.challenge-robot .scene-mascot {
  background: linear-gradient(145deg, #f9fffc, #a9f0d5);
}

.game-card.challenge-decision .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 199, 84, .35), transparent 29%),
    linear-gradient(145deg, #755421, #25213f);
}

.game-card.challenge-decision .scene-mascot {
  background: linear-gradient(145deg, #fffdf5, #ffe39f);
}

.game-card.challenge-loop .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 126, 115, .34), transparent 29%),
    linear-gradient(145deg, #7a3549, #25203d);
}

.game-card.challenge-loop .scene-mascot {
  background: linear-gradient(145deg, #fff8f5, #ffb6af);
}

.game-card.challenge-debug .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(255, 108, 147, .35), transparent 29%),
    linear-gradient(145deg, #721f48, #221c38);
}

.game-card.challenge-debug .scene-mascot {
  background: linear-gradient(145deg, #fff7fa, #ffb0c8);
}

.game-card.challenge-function .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(161, 130, 255, .38), transparent 29%),
    linear-gradient(145deg, #4c3786, #1c203f);
}

.game-card.challenge-function .scene-mascot {
  background: linear-gradient(145deg, #fbf9ff, #c9b7ff);
}

.game-card.challenge-list .game-card-scene {
  background:
    radial-gradient(circle at 50% 42%, rgba(74, 207, 215, .35), transparent 29%),
    linear-gradient(145deg, #176370, #17213f);
}

.game-card.challenge-list .scene-mascot {
  background: linear-gradient(145deg, #f7ffff, #aeecee);
  font-size: 3.3rem;
}

.game-card:nth-child(even) .game-card-scene {
  grid-column: 2;
  grid-row: 1;
}

.game-card:nth-child(even) .game-card-copy {
  grid-column: 1;
  grid-row: 1;
}

.game-card-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 5vw, 62px);
}

.game-card-copy > span {
  color: #78dfff;
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.game-card-copy h2 {
  margin: 10px 0 14px;
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
}

.game-card-copy > p {
  margin: 0 0 22px;
  color: #aebfcc;
  line-height: 1.7;
}

.game-card-copy dl {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 0 0 26px;
}

.game-card-copy dl div {
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, .11);
}

.game-card-copy dt {
  margin-bottom: 6px;
  color: #7893a6;
  font-size: .72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.game-card-copy dd {
  margin: 0;
  color: #e8f0f5;
  font-size: .92rem;
  line-height: 1.45;
}

.game-card-copy a {
  align-self: flex-start;
  padding: 14px 19px;
  color: #07141f;
  background: #7ce6ff;
  font-weight: 900;
  text-decoration: none;
}

.game-card-copy a:hover {
  background: #fff;
}

@keyframes game-grid {
  to { background-position: 0 84px, 84px 0; }
}

@keyframes game-float {
  50% { transform: translateX(-50%) translateY(-14px) scale(1.04); }
}

@keyframes game-spin {
  to { transform: translateX(-50%) rotateX(66deg) rotateZ(352deg); }
}

@keyframes game-cube {
  50% { transform: translateY(-18px) rotateX(145deg) rotateZ(135deg); }
}

.submission-panel {
  margin-top: 18px;
  border-top: 1px solid #dce6ec;
}

.submission-panel summary {
  padding: 16px 0 4px;
  color: var(--course-accent);
  font-weight: 900;
  cursor: pointer;
}

.submission-form {
  display: grid;
  gap: 16px;
  margin-top: 16px;
  padding: 18px;
  border: 1px solid #d7e3e9;
  background: #f7fafb;
}

.submission-form > label {
  display: grid;
  gap: 7px;
  color: #29485f;
  font-size: .8rem;
  font-weight: 900;
}

.submission-form input[type="text"],
.submission-form textarea,
.submission-form input[type="file"] {
  width: 100%;
  padding: 12px;
  border: 1px solid #becfd9;
  border-radius: 0;
  color: #17364e;
  background: #fff;
  font: inherit;
}

.submission-form textarea:focus,
.submission-form input:focus {
  border-color: var(--course-accent);
  outline: 3px solid color-mix(in srgb, var(--course-accent) 13%, transparent);
}

.submission-form fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.submission-form legend {
  margin-bottom: 9px;
  color: #29485f;
  font-size: .8rem;
  font-weight: 900;
}

.submission-types {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.submission-types label {
  cursor: pointer;
}

.submission-types input {
  position: absolute;
  opacity: 0;
}

.submission-types span {
  display: block;
  padding: 8px 10px;
  border: 1px solid #cad8df;
  color: #496276;
  background: #fff;
  font-size: .75rem;
  font-weight: 800;
}

.submission-types input:checked + span {
  border-color: var(--course-accent);
  color: #fff;
  background: var(--course-accent);
}

.submission-form > button,
.use-game-score {
  justify-self: start;
  padding: 11px 15px;
  border: 0;
  color: #fff;
  background: var(--course-accent);
  font-weight: 900;
  cursor: pointer;
}

.use-game-score {
  margin-bottom: 8px;
  color: var(--course-accent);
  background: #fff;
  outline: 1px solid var(--course-accent);
  font-size: .78rem;
}

.submission-form > button:disabled {
  cursor: wait;
  opacity: .6;
}

.submission-status {
  min-height: 20px;
  margin: 0 !important;
  font-size: .8rem;
  font-weight: 800;
}

.submission-status.is-success {
  color: #16764d;
}

.submission-status.is-error {
  color: #a5263d;
}

.help-search {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: center;
  margin-bottom: 22px;
  padding: 22px;
  color: #fff;
  background: #173c57;
}

.help-search label {
  font-size: 1.05rem;
  font-weight: 900;
}

.help-search input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, .25);
  color: #17364e;
  background: #fff;
  font: inherit;
}

.help-accordion {
  display: grid;
  gap: 8px;
}

.help-accordion details {
  border: 1px solid #d5e1e7;
  background: #fff;
}

.help-accordion summary {
  display: grid;
  grid-template-columns: 45px 1fr 30px;
  gap: 15px;
  align-items: center;
  padding: 18px;
  cursor: pointer;
  list-style: none;
}

.help-accordion summary::-webkit-details-marker {
  display: none;
}

.help-accordion summary > span:first-child {
  color: var(--course-accent);
  font-size: .75rem;
  font-weight: 900;
}

.help-accordion summary > .ui-icon:first-child {
  width: 22px;
  height: 22px;
  background: currentColor;
}

.help-accordion summary > span:nth-child(2) {
  display: grid;
  gap: 4px;
}

.help-accordion summary small {
  color: #708797;
  font-size: .68rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.help-accordion summary strong {
  color: #17364e;
}

.help-accordion summary i {
  color: var(--course-accent);
  font-size: 1.4rem;
  font-style: normal;
  text-align: center;
  transition: transform .2s ease;
}

.help-accordion details[open] summary i {
  transform: rotate(45deg);
}

.help-accordion details > p {
  margin: 0;
  padding: 0 72px 20px 78px;
  color: #526c7d;
  line-height: 1.7;
}

.help-contact {
  display: flex;
  gap: 25px;
  align-items: center;
  justify-content: space-between;
  margin: 25px 0;
  padding: 28px;
  color: #fff;
  background:
    radial-gradient(circle at 90% 20%, color-mix(in srgb, var(--course-accent) 65%, transparent), transparent 35%),
    #102b40;
}

.help-contact span {
  color: #7cdbff;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.help-contact h2 {
  margin: 7px 0;
  color: #fff;
}

.help-contact p {
  margin: 0;
  color: #aec2ce;
}

.help-contact a {
  flex: 0 0 auto;
  padding: 13px 16px;
  color: #0b2538;
  background: #7ce4ff;
  font-weight: 900;
  text-decoration: none;
}

.help-no-results {
  padding: 25px;
  color: #587083;
  background: #f2f7f9;
  text-align: center;
}

@media (max-width: 980px) {
  .quick-access-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .video-library,
  .game-card,
  .campaign-overview {
    grid-template-columns: 1fr;
  }

  .game-card:nth-child(even) .game-card-scene,
  .game-card:nth-child(even) .game-card-copy {
    grid-column: 1;
  }

  .game-card:nth-child(even) .game-card-scene {
    grid-row: 1;
  }

  .game-card:nth-child(even) .game-card-copy {
    grid-row: 2;
  }

  .campaign-overview-stats {
    min-height: 150px;
  }

  .video-playlist {
    max-height: none;
    border-top: 1px solid rgba(255, 255, 255, .1);
    border-left: 0;
  }
}

@media (max-width: 640px) {
  .quick-access-grid,
  .game-card-copy dl {
    grid-template-columns: 1fr;
  }

  .help-search {
    grid-template-columns: 1fr;
  }

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

  .campaign-flow b {
    display: none;
  }

  .campaign-overview-stats {
    grid-template-columns: 1fr;
  }

  .campaign-overview-stats article {
    min-height: 105px;
    border-right: 0;
    border-bottom: 1px solid rgba(129, 226, 255, .13);
  }

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

  .help-accordion details > p {
    padding: 0 18px 18px;
  }
}

.course-error {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.course-error main {
  width: min(520px, calc(100% - 40px));
  padding: 45px;
  background: #fff;
  text-align: center;
}

.course-error img {
  width: 260px;
  margin: 0 auto 28px;
}

.course-error a {
  margin-top: 18px;
  padding: 11px 16px;
  display: inline-block;
  color: #fff;
  background: #21599c;
}

@keyframes view-in {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1100px) {
  .course-topbar {
    grid-template-columns: auto 1fr;
  }

  .course-brand {
    display: none;
  }

  .course-shell {
    grid-template-columns: 250px minmax(0, 1fr);
  }

  .course-hero-copy {
    padding: 62px 42px;
  }

  .overview-grid,
  .overview-bottom,
  .syllabus-layout,
  .progress-dashboard {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 820px) {
  .course-topbar {
    height: 66px;
    padding: 0 12px;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 10px;
  }

  .student-view {
    display: none;
  }

  .course-switcher select {
    width: 100%;
    max-width: none;
    height: 44px;
    border-radius: 999px;
  }

  .topbar-actions {
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 44px;
    gap: 8px;
  }

  .course-switcher {
    min-width: 0;
  }

  .sidebar-toggle {
    position: static;
    z-index: auto;
    width: 44px;
    height: 44px;
    padding: 0;
    display: grid;
    place-items: center;
    border: 1px solid #cbd8e1;
    border-radius: 13px;
    color: var(--course-accent);
    background: #fff;
    box-shadow: none;
  }

  .sidebar-toggle-icon {
    width: 20px;
    height: 16px;
    display: grid;
    align-content: space-between;
  }

  .sidebar-toggle-icon i {
    display: block;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
  }

  .sidebar-toggle-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
  }

  .course-shell {
    display: block;
    min-height: calc(100vh - 66px);
  }

  .course-sidebar {
    position: fixed;
    top: 66px;
    bottom: 0;
    left: 0;
    z-index: 90;
    width: min(330px, 88vw);
    height: auto;
    visibility: hidden;
    box-shadow: 18px 0 40px rgba(19, 43, 64, .2);
    transform: translateX(-105%);
    transition: transform .22s ease, visibility .22s ease;
  }

  .sidebar-open .course-sidebar {
    visibility: visible;
    transform: translateX(0);
  }

  .course-main {
    padding: 18px;
  }

  .course-hero {
    min-height: 460px;
  }

  .course-hero-overlay {
    background: linear-gradient(0deg, rgba(14, 35, 55, .96), rgba(14, 35, 55, .28));
  }

  .course-hero-copy {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    padding: 35px 28px;
  }

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

  .forum-layout {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .back-catalog {
    font-size: 0;
  }

  .back-catalog span {
    font-size: 24px;
  }

  .course-switcher select {
    max-width: 220px;
  }

  .course-main {
    padding: 12px;
  }

  .course-hero {
    min-height: 500px;
  }

  .course-hero-copy {
    padding: 28px 22px;
  }

  .course-hero h1 {
    font-size: 37px;
  }

  .course-hero-copy > p {
    font-size: 15px;
  }

  .overview-grid,
  .overview-bottom {
    gap: 12px;
  }

  .welcome-card,
  .course-at-glance,
  .content-card,
  .recent-announcements,
  .next-step,
  .unit-map,
  .forum-composer,
  .forum-posts,
  .progress-hero-card,
  .progress-details,
  .help-grid article {
    padding: 23px;
  }

  .course-at-glance dl {
    grid-template-columns: 1fr;
  }

  .recent-announcements article,
  .announcement-list article {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .unit-map > div,
  .assessment-grid,
  .help-grid {
    grid-template-columns: 1fr;
  }

  .unit-card summary {
    grid-template-columns: 46px 1fr;
    padding: 16px;
  }

  .unit-number {
    width: 43px;
    height: 43px;
  }

  .unit-count {
    grid-column: 2;
  }

  .unit-content {
    padding: 0 16px 18px;
  }

  .agenda-item {
    grid-template-columns: 60px 1fr;
  }

  .agenda-item .status-pill {
    grid-column: 2;
  }

  .progress-hero-card > strong {
    font-size: 58px;
  }
}

@media (max-width: 1180px) {
  .syllabus-welcome {
    grid-template-columns: 1fr;
  }

  .syllabus-items,
  .syllabus-style-resources .syllabus-items,
  .syllabus-style-stats .syllabus-items {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topic-game-route .game-catalog {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 760px) {
  .syllabus-welcome {
    padding: 28px 22px;
    border-radius: 20px;
  }

  .syllabus-section-nav {
    top: 72px;
    margin-inline: -8px;
    border-radius: 14px;
  }

  .syllabus-section {
    padding: 24px 18px;
    border-radius: 20px;
  }

  .syllabus-section > header > strong {
    font-size: 3.5rem;
  }

  .syllabus-items,
  .syllabus-style-resources .syllabus-items,
  .syllabus-style-stats .syllabus-items {
    grid-template-columns: 1fr;
  }

  .lesson-module-grid,
  .topic-game-heading {
    grid-template-columns: 1fr;
  }

  .topic-game-heading dl {
    grid-template-columns: 1fr;
  }

  .topic-game-route {
    padding: 14px;
  }

  .topic-game-route .game-card {
    grid-template-columns: 1fr;
  }

  .topic-game-route .game-card-scene {
    min-height: 240px;
  }

  .lesson-module footer {
    display: grid;
  }

  .lesson-module footer a,
  .lesson-module footer button {
    width: 100%;
  }

  .calendar-toolbar,
  .calendar-selected-agenda {
    grid-template-columns: 1fr;
  }

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

  .calendar-weekdays span {
    padding: 8px 2px;
    font-size: .58rem;
  }

  .calendar-grid button {
    min-height: 58px;
    padding: 5px;
  }

  .calendar-grid button > span {
    width: 24px;
    height: 24px;
    font-size: .72rem;
  }

  .calendar-grid button small {
    width: 100%;
    height: 5px;
    padding: 0;
    border: 0;
    border-radius: 5px;
    color: transparent;
    background: var(--course-accent);
  }

  [data-calendar-selected-events] article {
    grid-template-columns: 1fr;
  }

  .assessment-guide {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}

body {
  font-family: Aptos, "Segoe UI Variable", "Segoe UI", sans-serif;
}

.course-hero h1,
.page-heading h1,
.syllabus-course-hero h1,
.calendar-toolbar h2,
.calendar-selected-agenda h2 {
  font-family: Aptos, "Segoe UI Variable", "Segoe UI", sans-serif;
  font-weight: 780;
  letter-spacing: -.035em;
}

.page-heading h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.75rem);
}

.calendar-app {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 310px);
}

.calendar-toolbar {
  grid-column: 1 / -1;
  padding: 14px 16px;
}

.calendar-toolbar h2 {
  font-size: 1.35rem;
}

.calendar-toolbar button {
  min-width: 36px;
  height: 36px;
  padding: 0 11px;
  border-radius: 9px;
  font-size: .76rem;
}

.calendar-weekdays {
  grid-column: 1;
}

.calendar-grid {
  grid-column: 1;
}

.calendar-grid button {
  min-height: 76px;
  padding: 7px;
}

.calendar-grid button > span {
  width: 25px;
  height: 25px;
  font-size: .78rem;
}

.calendar-selected-agenda {
  grid-column: 2;
  grid-row: 2 / 4;
  padding: 17px;
  display: block;
  overflow-y: auto;
  border-top: 0;
  border-left: 1px solid #dce7ee;
}

.calendar-selected-agenda > div:first-child {
  margin-bottom: 14px;
}

.calendar-selected-agenda h2 {
  font-size: 1rem;
}

[data-calendar-selected-events] article {
  grid-template-columns: 1fr;
  padding: 10px;
}

@media (max-width: 920px) {
  .calendar-app {
    display: block;
  }

  .calendar-selected-agenda {
    border-top: 1px solid #dce7ee;
    border-left: 0;
  }
}