@font-face {
  font-family: Instrument;
  src: url("/v1/assets/serif.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: Instrument;
  src: url("/v1/assets/serif-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: Manrope;
  src: url("/v1/assets/manrope.woff2") format("woff2");
  font-weight: 400 800;
  font-style: normal;
  font-display: swap;
}
:root {
  --paper: #eeeff5;
  --ink: #24283d;
  --muted: #626577;
  --line: #d6d7e1;
  --blue: #375fcc;
  --violet: #674b68;
  --green: #256d5d;
  --white: #fafafd;
  --serif: Instrument, Georgia, serif;
  --sans: Manrope, Arial, sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 24px;
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.65;
}
body.dialog-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}
button:disabled {
  cursor: default;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 5px;
}
button {
  border: 0;
}
img {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
h1,
h2,
h3,
h4 {
  font-weight: 400;
}
em {
  font-weight: 400;
}
.wrap {
  width: min(1280px, calc(100% - 112px));
  margin-inline: auto;
}
.eyebrow {
  font-size: 10px;
  letter-spacing: 1.8px;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.6;
}
.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;
}
.skip {
  position: fixed;
  top: -100px;
  left: 20px;
  background: var(--ink);
  color: white;
  padding: 12px 20px;
  z-index: 10;
}
.skip:focus {
  top: 10px;
}
.preview-bar {
  background: #e1e3ed;
  border-bottom: 1px solid #d4d6e2;
  font-size: 10px;
  letter-spacing: 0.35px;
}
.preview-bar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 33px;
  gap: 12px;
}
.preview-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--blue);
  border-radius: 50%;
  margin-right: 9px;
  vertical-align: 2px;
}
.preview-version {
  color: var(--muted);
  margin-left: 10px;
}
.preview-bar a:hover {
  text-decoration: underline;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  min-height: 102px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1.5px;
}
.brand-mark {
  display: inline-flex;
  align-items: end;
  gap: 3px;
  height: 25px;
  width: 28px;
}
.brand-mark i {
  display: block;
  width: 7px;
  background: currentColor;
  height: 20px;
  border-radius: 5px 5px 0 0;
}
.brand-mark i:nth-child(2) {
  height: 25px;
}
.brand-mark i:nth-child(3) {
  height: 16px;
}
.brand-note {
  border-left: 1px solid var(--line);
  padding-left: 16px;
  margin-left: 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0;
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 12px;
  font-weight: 500;
}
.site-header nav a {
  padding: 10px 0;
}
.site-header nav a:hover {
  color: var(--blue);
}
.site-header nav .school-nav {
  border: 1px solid #bfc2d3;
  padding: 9px 15px;
  border-radius: 3px;
}
.school-nav span {
  margin-left: 16px;
}
.hero {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 45px;
  align-items: center;
  padding-top: 38px;
  padding-bottom: 74px;
}
.hero-copy {
  padding-bottom: 20px;
}
.hero .eyebrow {
  color: var(--blue);
  display: flex;
  gap: 10px;
  align-items: center;
}
.little-rule {
  height: 1px;
  width: 24px;
  background: currentColor;
}
.hero h1 {
  font-family: var(--serif);
  font-size: clamp(64px, 6.9vw, 104px);
  line-height: 0.96;
  letter-spacing: -1.6px;
  margin: 28px 0 25px;
}
.hero h1 em {
  color: var(--blue);
}
.hero-intro {
  max-width: 345px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}
.hero-promise {
  margin-top: 12px;
  max-width: 330px;
  font-size: 12px;
  color: var(--muted);
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-top: 28px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-height: 48px;
  padding: 13px 21px;
  border-radius: 3px;
  font-size: 12px;
  font-weight: 600;
  transition:
    background 0.2s,
    transform 0.2s;
}
.button:hover {
  transform: translateY(-2px);
}
.primary {
  background: var(--ink);
  color: #fff;
}
.primary:hover {
  background: var(--blue);
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  background: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.text-link:hover {
  border-color: currentColor;
}
.hero-gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 13px;
  align-items: start;
  padding-top: 13px;
  position: relative;
}
.window {
  min-width: 0;
  display: block;
}
.window-image {
  position: relative;
  overflow: hidden;
  background: #d9d9d4;
  height: 352px;
  border-radius: 110px 110px 3px 3px;
  box-shadow: 0 14px 20px -20px #24283d55;
}
.window img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s;
}
.window:hover img {
  transform: scale(1.055);
}
.window:focus-visible {
  outline-offset: 6px;
  border-radius: 4px;
}
.window-art {
  margin-top: 49px;
}
.window-art img {
  object-position: 49% 36%;
}
.window-nature .window-image {
  height: 410px;
  border-radius: 3px 3px 110px 110px;
}
.window-nature img {
  object-position: 50% center;
}
.window-science {
  margin-top: 88px;
}
.window-science .window-image {
  height: 316px;
  background: #e6e0ed;
}
.window-science img {
  object-fit: cover;
  object-position: 50% 50%;
}
.window-arrow {
  position: absolute;
  bottom: 15px;
  right: 14px;
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  background: #fafafddb;
  color: var(--ink);
  border-radius: 50%;
  font-size: 15px;
}
.window-nature .window-arrow {
  bottom: 35px;
  right: calc(50% - 13px);
}
.window-label {
  display: block;
  font-size: 9px;
  letter-spacing: 1.1px;
  text-transform: uppercase;
  text-align: center;
  margin-top: 17px;
  white-space: nowrap;
}
.gallery-note {
  grid-column: 1/-1;
  text-align: center;
  font-family: var(--serif);
  font-size: 20px;
  font-style: italic;
  color: var(--muted);
  margin-top: 3px;
}
.gallery-note span {
  font-family: var(--sans);
  margin-right: 12px;
  font-size: 18px;
}
.intro-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  padding: 21px 0;
  font-size: 11px;
}
.intro-strip p {
  display: flex;
  align-items: center;
  gap: 15px;
}
.three-mark {
  font-family: var(--serif);
  font-size: 27px;
  line-height: 1;
  color: var(--blue);
}
.intro-strip a {
  color: var(--muted);
}
.intro-strip strong {
  margin-left: 9px;
  color: var(--ink);
  font-weight: 600;
}
.intro-strip a:hover strong {
  color: var(--blue);
}
.discovery {
  padding-top: 78px;
}
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 32px;
  margin-bottom: 31px;
}
.section-heading .eyebrow {
  color: var(--muted);
  margin-bottom: 8px;
}
.section-heading h2 {
  font-family: var(--serif);
  font-size: 52px;
  line-height: 1.1;
  letter-spacing: -0.4px;
}
.section-heading > p {
  font-size: 12px;
  color: var(--muted);
  padding-bottom: 5px;
}
.branch-picker {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.branch-choice {
  background: transparent;
  text-align: left;
  border: 1px solid var(--line);
  padding: 19px 18px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-radius: 4px;
  min-height: 90px;
  transition:
    background 0.2s,
    border 0.2s;
}
.branch-choice:hover {
  border-color: #a3a9be;
  background: #f7f7fc;
}
.branch-choice[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.branch-choice[data-branch="nature"][aria-pressed="true"] {
  background: var(--green);
  border-color: var(--green);
}
.branch-choice[data-branch="works"][aria-pressed="true"] {
  background: var(--violet);
  border-color: var(--violet);
}
.branch-symbol {
  font-family: var(--serif);
  font-size: 35px;
  width: 30px;
  height: 34px;
  line-height: 1;
  flex-shrink: 0;
}
.branch-choice strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
}
.branch-choice small {
  display: block;
  font-size: 9px;
  margin-top: 5px;
  opacity: 0.85;
}
.branch-indicator {
  margin-left: auto;
  font-size: 18px;
  opacity: 0.65;
}
.edition {
  background: var(--white);
  border: 1px solid var(--line);
  margin-top: 22px;
  padding: 30px 27px 0;
  border-radius: 4px;
  --branch-color: var(--blue);
}
.edition[data-branch="nature"] {
  --branch-color: var(--green);
}
.edition[data-branch="works"] {
  --branch-color: var(--violet);
}
.edition-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 22px;
}
.edition-heading .eyebrow {
  color: var(--branch-color);
  font-size: 9px;
}
.edition-heading h3 {
  font-family: var(--serif);
  font-size: 32px;
  line-height: 1.25;
  margin-top: 7px;
}
.edition-description {
  color: var(--muted);
  font-size: 11px;
  margin-top: 11px;
  max-width: 820px;
}
.discovery-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 27px;
}
.discovery-card {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.card-image {
  display: block;
  position: relative;
  overflow: hidden;
  aspect-ratio: 1.52;
  background: #edeaf3;
  width: 100%;
  padding: 0;
  border-radius: 3px;
}
.card-image > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 32%;
  transition: transform 0.55s;
}
.card-image:hover > img {
  transform: scale(1.04);
}
.discovery-card:nth-child(3) .card-image > img {
  object-position: 50% 37%;
}
.card-number {
  position: absolute;
  top: 12px;
  left: 12px;
  display: grid;
  place-items: center;
  min-width: 27px;
  height: 27px;
  padding: 0 7px;
  border-radius: 2px;
  background: #fafafde6;
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1;
  color: var(--ink);
}
.card-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding-top: 21px;
}
.card-copy .eyebrow {
  font-size: 8px;
  color: var(--branch-color);
  letter-spacing: 1.4px;
}
.card-copy h4 {
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1.15;
  margin: 9px 0 10px;
  letter-spacing: -0.2px;
}
.card-copy h4 a:hover {
  color: var(--branch-color);
}
.card-copy > p:not(.eyebrow) {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
  margin-bottom: 20px;
}
.card-cta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding: 15px 0;
  margin-top: auto;
  font-size: 10px;
  font-weight: 600;
  width: 100%;
  background: transparent;
  text-align: left;
}
.card-cta > span {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 9px;
  font-weight: 400;
  color: var(--muted);
}
.card-cta > span > [aria-hidden="true"] {
  font-size: 17px;
}
.card-cta:hover {
  color: var(--branch-color);
}
.edition-bottom {
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 0;
  margin-top: 11px;
  font-size: 10px;
  color: var(--muted);
}
.edition-bottom p span {
  font-size: 15px;
  margin-right: 6px;
}
.edition-bottom a {
  color: var(--ink);
  white-space: nowrap;
}
.edition-bottom a:hover {
  text-decoration: underline;
}
.preview-explainer {
  font-size: 10px;
  color: var(--muted);
  margin-top: 14px;
  line-height: 1.8;
}
.no-script {
  padding: 15px;
  background: #fff4c9;
}
.sample-graphic {
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 28px;
  color: var(--branch-color);
  background: #e8ede9;
}
.sample-graphic strong {
  font-family: var(--serif);
  font-size: 48px;
  line-height: 1.1;
  font-weight: 400;
}
.sample-graphic span {
  font-size: 9px;
  letter-spacing: 1px;
  max-width: 220px;
}
.sample-graphic.heat {
  background: #ece6f0;
}
.sample-graphic.habitat {
  background: #dcece5;
}
.sample-graphic.sun {
  background: #f0edda;
}
.sample-graphic svg {
  width: 94px;
  height: 80px;
  flex-shrink: 0;
}
.sample-diagram img {
  object-fit: contain;
  background: #e6e0ed;
}
.school-section {
  margin-top: 85px;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  background: #242c43;
  color: white;
  border-radius: 5px;
  overflow: hidden;
}
.school-art {
  position: relative;
  min-height: 400px;
  background: #162742;
}
.school-art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  object-position: center;
}
.school-art:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, #14223ca6, transparent 50%);
}
.school-art-note {
  position: absolute;
  bottom: 30px;
  left: 32px;
  z-index: 1;
  font-family: var(--serif);
  font-style: italic;
  font-size: 25px;
}
.school-copy {
  padding: 49px 50px 36px;
}
.school-copy .eyebrow {
  font-size: 9px;
  color: #c3c9e1;
}
.school-copy h2 {
  font-family: var(--serif);
  font-size: 53px;
  line-height: 1.05;
  margin: 17px 0 21px;
}
.school-copy h2 em {
  color: #c3c9ef;
}
.school-copy > p:not(.eyebrow) {
  font-size: 12px;
  line-height: 1.9;
  color: #c7ccdc;
  max-width: 360px;
}
.school-button {
  margin-top: 24px;
  background: #eceefa;
  color: var(--ink);
}
.school-button:hover {
  background: white;
}
.school-year {
  font-size: 9px;
  color: #c7ccdc;
  margin-left: 14px;
  display: inline-block;
}
.school-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  border-top: 1px solid #ffffff26;
  padding-top: 21px;
  margin-top: 27px;
  font-size: 10px;
  color: #e5e8f4;
}
.school-links a span {
  padding-left: 7px;
}
.school-links a:hover {
  text-decoration: underline;
}
.future-section {
  padding-top: 84px;
}
.future-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-block: 1px solid var(--line);
  padding: 31px 0;
}
.future-grid article {
  padding: 0 27px;
  border-right: 1px solid var(--line);
}
.future-grid article:first-child {
  padding-left: 0;
}
.future-grid article:last-child {
  border-right: 0;
}
.future-icon {
  font-family: var(--serif);
  color: var(--violet);
  font-size: 32px;
  line-height: 1.1;
  display: block;
  margin-bottom: 18px;
  height: 35px;
}
.future-grid h3 {
  font-family: var(--serif);
  font-size: 28px;
  margin-bottom: 7px;
}
.future-grid p {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
}
.future-note {
  font-size: 10px;
  color: var(--muted);
  margin-top: 15px;
}
.closing {
  padding: 74px 0 68px;
  text-align: center;
}
.closing .brand-mark {
  color: var(--blue);
  transform: scale(0.85);
  margin-bottom: 18px;
}
.closing p {
  font-family: var(--serif);
  font-size: 38px;
  line-height: 1.18;
}
.closing p em {
  color: var(--muted);
}
.closing .text-link {
  margin-top: 24px;
}
.site-footer {
  border-top: 1px solid var(--line);
  padding: 25px 0 30px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}
.site-footer > div {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 9px;
  color: var(--muted);
}
.site-footer .footer-brand {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -1px;
}
.site-footer .text-link {
  font-size: 9px;
  font-weight: 400;
}
.site-footer a:hover {
  color: var(--blue);
}
dialog {
  border: 1px solid #d6d7e1;
  background: var(--white);
  color: var(--ink);
  border-radius: 6px;
  width: min(720px, calc(100% - 32px));
  max-height: 90dvh;
  padding: 0;
  box-shadow: 0 25px 120px #1115254d;
}
dialog::backdrop {
  background: #1b2038a6;
  backdrop-filter: blur(5px);
}
.dialog-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 26px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 1;
}
.dialog-toolbar .eyebrow {
  font-size: 9px;
  color: var(--muted);
}
.close-button {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  font-size: 18px;
  background: var(--paper);
  border-radius: 50%;
}
.close-button:hover {
  background: var(--line);
}
.lesson-content {
  padding: 32px 48px 38px;
}
.lesson-content > h2 {
  font-family: var(--serif);
  font-size: 51px;
  line-height: 1.05;
  margin: 12px 0 17px;
}
.lesson-deck {
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.35;
  color: var(--muted);
}
.depth-switch {
  display: inline-flex;
  background: var(--paper);
  padding: 4px;
  gap: 4px;
  border-radius: 4px;
  margin: 25px 0;
}
.depth-switch button {
  background: transparent;
  border-radius: 3px;
  padding: 9px 16px;
  font-size: 12px;
}
.depth-switch button[aria-pressed="true"] {
  background: var(--ink);
  color: white;
}
#lesson-body p {
  font-size: 14px;
  line-height: 1.9;
  margin: 0 0 17px;
}
#lesson-body h3 {
  font-family: var(--serif);
  font-size: 29px;
  margin: 22px 0 10px;
}
.remember {
  background: #e9ecf7;
  border-left: 2px solid var(--blue);
  padding: 20px 23px;
  margin-top: 25px;
}
.remember .eyebrow {
  font-size: 9px;
  color: var(--blue);
  margin-bottom: 8px;
}
.remember p:last-child {
  font-family: var(--serif);
  font-size: 25px;
  line-height: 1.3;
}
.check-yourself {
  margin-top: 24px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
  font-size: 13px;
}
summary {
  cursor: pointer;
  min-height: 35px;
  padding: 6px 0;
  font-weight: 600;
}
.check-yourself p {
  margin: 10px 0;
}
.check-yourself details {
  padding-left: 17px;
  color: var(--muted);
}
.lesson-sources {
  margin-top: 25px;
}
.lesson-sources ul {
  padding-left: 18px;
  font-size: 11px;
}
.lesson-sources a,
.lesson-content > p a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--blue);
}
.school-bridge {
  background: #e8ede9;
  padding: 16px 20px;
  margin-top: 25px;
  font-size: 12px;
}
.school-bridge strong {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 5px;
}
.school-bridge a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.school-bridge:empty {
  display: none;
}
.lesson-next {
  border-top: 1px solid var(--line);
  padding-top: 23px;
  margin-top: 25px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.lesson-next > span {
  font-size: 11px;
  color: var(--muted);
}
#credits-dialog .lesson-content > p {
  margin: 18px 0;
  line-height: 1.9;
  font-size: 13px;
}
[hidden] {
  display: none !important;
}
@media (min-width: 1600px) {
  .hero {
    padding-top: 55px;
    padding-bottom: 90px;
  }
  .hero-gallery {
    gap: 16px;
  }
  .window-image {
    height: 390px;
  }
  .window-nature .window-image {
    height: 448px;
  }
  .window-science .window-image {
    height: 354px;
  }
}
@media (max-width: 1100px) {
  .wrap {
    width: calc(100% - 64px);
  }
  .brand-note {
    display: none;
  }
  .hero {
    gap: 28px;
  }
  .hero-actions {
    gap: 18px;
  }
  .hero .button {
    gap: 20px;
    padding-inline: 16px;
  }
  .hero-gallery {
    gap: 9px;
  }
  .window-image {
    height: 310px;
  }
  .window-nature .window-image {
    height: 368px;
  }
  .window-science .window-image {
    height: 274px;
  }
  .window-label {
    font-size: 7px;
    letter-spacing: 0.6px;
  }
  .gallery-note {
    font-size: 18px;
  }
  .branch-choice {
    padding: 17px 12px;
    gap: 10px;
  }
  .branch-choice strong {
    font-size: 12px;
  }
  .branch-choice small {
    font-size: 8px;
  }
  .branch-indicator {
    display: none;
  }
  .edition {
    padding: 25px 20px 0;
  }
  .discovery-cards {
    gap: 18px;
  }
  .card-copy h4 {
    font-size: 27px;
  }
  .school-copy {
    padding: 37px 34px 28px;
  }
  .school-year {
    display: block;
    margin: 10px 0 0;
  }
  .school-copy h2 {
    font-size: 48px;
  }
  .future-grid h3 {
    font-size: 25px;
  }
  .site-footer > div {
    gap: 15px;
  }
}
@media (max-width: 780px) {
  .site-header {
    min-height: 87px;
  }
  .site-header nav {
    gap: 18px;
    font-size: 11px;
  }
  .site-header nav a:nth-child(2) {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr 1fr;
    padding-top: 25px;
    padding-bottom: 48px;
    gap: 25px;
  }
  .hero h1 {
    font-size: 64px;
  }
  .hero .eyebrow {
    font-size: 8px;
    letter-spacing: 1.3px;
  }
  .hero-intro {
    font-size: 12px;
  }
  .hero-promise {
    font-size: 10px;
  }
  .hero-actions {
    align-items: start;
    flex-direction: column;
    gap: 12px;
  }
  .window-image {
    height: 247px;
  }
  .window-nature .window-image {
    height: 305px;
  }
  .window-science .window-image {
    height: 211px;
  }
  .window-label {
    font-size: 6px;
    letter-spacing: 0.2px;
  }
  .gallery-note {
    font-size: 16px;
  }
  .window-arrow {
    width: 22px;
    height: 22px;
    right: 9px;
  }
  .intro-strip {
    font-size: 9px;
    gap: 16px;
  }
  .intro-strip strong {
    display: block;
    margin: 2px 0 0;
  }
  .discovery {
    padding-top: 52px;
  }
  .section-heading h2 {
    font-size: 43px;
  }
  .section-heading > p {
    font-size: 10px;
  }
  .branch-choice {
    align-items: start;
    gap: 8px;
  }
  .branch-symbol {
    width: 23px;
    height: 28px;
    font-size: 28px;
  }
  .branch-choice small {
    line-height: 1.6;
  }
  .edition-heading {
    align-items: start;
  }
  .edition-heading h3 {
    font-size: 29px;
  }
  .edition-heading .text-link {
    font-size: 10px;
    flex-shrink: 0;
  }
  .discovery-cards {
    gap: 15px;
  }
  .card-copy .eyebrow {
    font-size: 7px;
    letter-spacing: 0.8px;
  }
  .card-copy h4 {
    font-size: 25px;
  }
  .card-copy > p:not(.eyebrow) {
    font-size: 10px;
  }
  .card-cta {
    font-size: 9px;
  }
  .card-cta > span {
    gap: 5px;
    font-size: 8px;
  }
  .card-number {
    font-size: 16px;
    min-width: 24px;
    height: 24px;
    top: 8px;
    left: 8px;
  }
  .sample-graphic {
    padding: 15px;
    gap: 7px;
  }
  .sample-graphic strong {
    font-size: 30px;
  }
  .sample-graphic svg {
    height: 55px;
    width: 65px;
  }
  .sample-graphic span {
    font-size: 7px;
  }
  .edition-bottom {
    font-size: 9px;
  }
  .school-section {
    margin-top: 55px;
    grid-template-columns: 0.7fr 1fr;
  }
  .school-copy {
    padding: 32px 26px;
  }
  .school-copy h2 {
    font-size: 42px;
  }
  .school-copy > p:not(.eyebrow) {
    font-size: 11px;
  }
  .school-copy .eyebrow {
    font-size: 8px;
  }
  .school-art-note {
    font-size: 22px;
    left: 22px;
  }
  .future-section {
    padding-top: 55px;
  }
  .future-grid article {
    padding-inline: 17px;
  }
  .future-grid h3 {
    font-size: 23px;
  }
  .future-grid p {
    font-size: 9px;
  }
  .site-footer {
    align-items: start;
  }
  .site-footer > div {
    flex-wrap: wrap;
    gap: 10px 15px;
  }
  .site-footer > div:first-child {
    max-width: 240px;
  }
  .site-footer > div:last-child {
    justify-content: end;
  }
}
@media (max-width: 580px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .preview-bar {
    font-size: 9px;
  }
  .preview-version {
    display: none;
  }
  .site-header {
    min-height: 79px;
    gap: 10px;
  }
  .brand {
    font-size: 25px;
    gap: 9px;
  }
  .brand-mark {
    transform: scale(0.85);
    transform-origin: left center;
    width: 24px;
  }
  .site-header nav {
    gap: 13px;
    font-size: 10px;
  }
  .site-header nav .school-nav {
    padding: 8px 10px;
  }
  .school-nav span {
    margin-left: 5px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 27px;
    padding-top: 21px;
    padding-bottom: 35px;
  }
  .hero-copy {
    padding-bottom: 0;
  }
  .hero .eyebrow {
    font-size: 9px;
  }
  .hero h1 {
    font-size: 76px;
    line-height: 0.96;
    letter-spacing: -1.5px;
    margin: 24px 0 20px;
  }
  .hero-intro {
    font-size: 13px;
    max-width: 315px;
  }
  .hero-promise {
    font-size: 11px;
    max-width: 295px;
    margin-top: 9px;
  }
  .hero-actions {
    flex-direction: row;
    align-items: center;
    gap: 22px;
    margin-top: 25px;
  }
  .hero-gallery {
    gap: 11px;
    padding-top: 0;
  }
  .window-image {
    height: 245px;
  }
  .window-art {
    margin-top: 28px;
  }
  .window-nature .window-image {
    height: 274px;
  }
  .window-science {
    margin-top: 49px;
  }
  .window-science .window-image {
    height: 224px;
  }
  .window-label {
    font-size: 7px;
    letter-spacing: 0.5px;
    margin-top: 12px;
  }
  .gallery-note {
    font-size: 19px;
    margin-top: 3px;
  }
  .intro-strip {
    align-items: start;
    font-size: 10px;
    padding: 17px 0;
  }
  .intro-strip p {
    max-width: 175px;
    gap: 10px;
    line-height: 1.7;
  }
  .intro-strip a {
    max-width: 135px;
    text-align: right;
  }
  .intro-strip strong {
    font-size: 9px;
  }
  .section-heading {
    display: block;
    margin-bottom: 24px;
  }
  .section-heading h2 {
    font-size: 43px;
  }
  .section-heading > p {
    font-size: 11px;
    margin-top: 13px;
  }
  .section-heading > p br {
    display: none;
  }
  .branch-picker {
    grid-template-columns: 1fr;
    gap: 7px;
  }
  .branch-choice {
    align-items: center;
    min-height: 65px;
    padding: 13px 16px;
    gap: 15px;
  }
  .branch-choice strong {
    font-size: 13px;
  }
  .branch-choice small {
    font-size: 9px;
    margin-top: 1px;
  }
  .branch-indicator {
    display: block;
  }
  .branch-symbol {
    width: 25px;
    height: 30px;
    font-size: 30px;
  }
  .edition {
    padding: 23px 17px 0;
    margin-top: 17px;
  }
  .edition-heading {
    display: block;
  }
  .edition-heading h3 {
    font-size: 32px;
    max-width: 260px;
  }
  .edition-heading .text-link {
    margin-top: 12px;
    font-size: 11px;
  }
  .edition-description {
    font-size: 11px;
    line-height: 1.8;
  }
  .discovery-cards {
    grid-template-columns: 1fr;
    gap: 30px;
    margin-top: 22px;
  }
  .card-image {
    aspect-ratio: 1.55;
  }
  .card-copy {
    padding-top: 17px;
  }
  .card-copy .eyebrow {
    font-size: 9px;
    letter-spacing: 1.3px;
  }
  .card-copy h4 {
    font-size: 33px;
    margin-top: 8px;
  }
  .card-copy > p:not(.eyebrow) {
    font-size: 12px;
    margin-bottom: 17px;
  }
  .card-cta {
    font-size: 11px;
    min-height: 50px;
  }
  .card-cta > span {
    font-size: 10px;
    gap: 15px;
  }
  .card-number {
    font-size: 20px;
    min-width: 29px;
    height: 29px;
    top: 12px;
    left: 12px;
  }
  .sample-graphic {
    gap: 10px;
  }
  .sample-graphic strong {
    font-size: 43px;
  }
  .sample-graphic span {
    font-size: 9px;
  }
  .sample-graphic svg {
    width: 90px;
    height: 80px;
  }
  .edition-bottom {
    display: block;
    padding-block: 17px;
    font-size: 10px;
  }
  .edition-bottom a {
    display: inline-block;
    margin-top: 12px;
  }
  .edition-bottom p {
    line-height: 1.9;
  }
  .preview-explainer {
    font-size: 9px;
    line-height: 1.9;
  }
  .school-section {
    grid-template-columns: 1fr;
    margin-top: 46px;
  }
  .school-art {
    min-height: 240px;
  }
  .school-art img {
    object-position: center 55%;
  }
  .school-art-note {
    font-size: 24px;
    bottom: 22px;
  }
  .school-copy {
    padding: 32px 26px;
  }
  .school-copy h2 {
    font-size: 49px;
  }
  .school-copy > p:not(.eyebrow) {
    font-size: 12px;
  }
  .school-copy .eyebrow {
    font-size: 8px;
    letter-spacing: 1.5px;
  }
  .school-year {
    font-size: 10px;
  }
  .school-links {
    gap: 15px 25px;
    font-size: 11px;
  }
  .future-grid {
    grid-template-columns: 1fr 1fr;
    padding: 0;
    gap: 0;
  }
  .future-grid article {
    padding: 25px 15px 25px 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .future-grid article:nth-child(even) {
    padding-left: 20px;
    border-left: 1px solid var(--line);
  }
  .future-grid article:nth-last-child(-n + 2) {
    border-bottom: 0;
  }
  .future-grid h3 {
    font-size: 26px;
  }
  .future-grid p {
    font-size: 10px;
  }
  .future-icon {
    margin-bottom: 13px;
  }
  .future-note {
    font-size: 9px;
    line-height: 1.9;
  }
  .closing {
    padding-block: 55px;
  }
  .closing p {
    font-size: 32px;
  }
  .site-footer {
    display: block;
  }
  .site-footer > div:first-child {
    max-width: none;
  }
  .site-footer > div:last-child {
    justify-content: start;
    margin-top: 15px;
  }
  .site-footer > div {
    font-size: 9px;
  }
  .lesson-content {
    padding: 23px 24px 28px;
  }
  .lesson-content > h2 {
    font-size: 42px;
  }
  .lesson-deck {
    font-size: 24px;
  }
  .dialog-toolbar {
    padding: 10px 16px;
  }
  .dialog-toolbar .eyebrow {
    font-size: 8px;
    letter-spacing: 1px;
  }
  .lesson-next {
    align-items: start;
    flex-direction: column;
  }
  .lesson-next .button {
    width: 100%;
  }
  .remember {
    padding: 18px;
  }
  .remember p:last-child {
    font-size: 24px;
  }
  #lesson-body p {
    font-size: 13px;
  }
  .depth-switch button {
    padding-inline: 14px;
  }
}
@media (max-width: 360px) {
  .wrap {
    width: calc(100% - 30px);
  }
  .site-header nav {
    gap: 8px;
    font-size: 9px;
  }
  .hero h1 {
    font-size: 68px;
  }
  .hero-actions {
    gap: 14px;
  }
  .hero-actions .text-link {
    font-size: 11px;
  }
  .window-label {
    font-size: 6px;
    letter-spacing: 0;
  }
  .window-image {
    height: 220px;
  }
  .window-nature .window-image {
    height: 249px;
  }
  .window-science .window-image {
    height: 199px;
  }
  .branch-choice small {
    font-size: 8px;
  }
  .intro-strip {
    font-size: 9px;
  }
  .future-grid h3 {
    font-size: 24px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *:before,
  *:after {
    transition: none !important;
    animation: none !important;
  }
  .button:hover {
    transform: none;
  }
  .window:hover img,
  .card-image:hover > img {
    transform: none;
  }
}