[hidden] {
  display: none !important;
}
.reading-library {
  border-top: 1px solid var(--line);
  margin-top: 80px;
  padding-top: 65px;
}
.library-heading {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: end;
  gap: 45px;
}
.library-heading h2 {
  font-size: clamp(34px, 4vw, 54px);
  letter-spacing: -1.8px;
  line-height: 1.14;
  margin-top: 15px;
}
.library-heading > p,
.library-note,
.track-heading > p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.85;
}
.library-note {
  font-size: 12px;
  max-width: 800px;
  margin: 28px 0;
}
.track-nav {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 45px;
}
.track-nav a {
  border: 1px solid #615438;
  border-radius: 12px;
  background: #211f17;
  color: var(--gold-soft);
  padding: 20px;
  font-size: 13px;
  line-height: 1.6;
}
.track-nav span {
  display: block;
  font-size: 11px;
  margin-bottom: 8px;
  letter-spacing: 2px;
}
.track-nav a:hover {
  border-color: var(--gold);
}
.reading-track {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.track-heading h3 {
  margin: 9px 0;
  font-size: 28px;
  letter-spacing: -0.6px;
}
.track-heading > p:not(.eyebrow) {
  font-size: 14px;
}
.reading-lessons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
  margin-top: 25px;
}
.reading-lesson {
  min-width: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.reading-lesson > summary {
  padding: 23px 24px;
  color: var(--gold-soft);
  cursor: pointer;
  line-height: 1.55;
  font-size: 15px;
}
.reading-lesson > summary strong {
  font-weight: 500;
}
.reading-number {
  font-size: 11px;
  letter-spacing: 1px;
  margin-inline: 8px;
}
.reading-lesson[open] {
  border-color: #756344;
}
.reading-content {
  padding: 0 25px 25px;
  font-size: 14px;
  line-height: 1.95;
}
.reading-content > p + p {
  margin-top: 17px;
}
.reading-exercise {
  background: #242119;
  border: 1px solid #625236;
  padding: 20px;
  border-radius: 10px;
  margin-top: 24px;
}
.reading-exercise h4 {
  margin: 0 0 10px;
  color: var(--gold-soft);
  font-size: 14px;
}
.worked-answer {
  border-top: 1px solid #625236;
  padding-top: 15px;
  margin-top: 18px;
}
.worked-answer summary {
  cursor: pointer;
  color: var(--gold-soft);
  padding-block: 8px;
}
.worked-answer p {
  margin-top: 15px;
}
.reading-sources {
  border-top: 1px solid var(--line);
  padding-top: 35px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}
.reading-sources h3 {
  color: var(--text);
  margin-bottom: 12px;
  font-size: 20px;
}
.reading-sources a {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}
@media (max-width: 800px) {
  .library-heading {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .track-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .track-nav a:last-child {
    grid-column: 1 / -1;
  }
  .reading-lessons {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 440px) {
  .reading-library {
    margin-top: 50px;
    padding-top: 40px;
  }
  .track-nav a {
    padding: 15px;
  }
  .reading-lesson > summary {
    padding: 20px 16px;
  }
  .reading-content {
    padding-inline: 18px;
  }
  .reading-exercise {
    padding: 16px;
  }
}
.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;
}
.education-main {
  padding-bottom: 60px;
}
.native-practice {
  border-top: 1px solid var(--line);
  margin-top: 25px;
  padding-top: 20px;
}
.native-practice > summary {
  color: var(--gold-soft);
  cursor: pointer;
  font-size: 13px;
}
.native-scope,
.native-status {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
  margin: 18px 0;
}
.native-lab h3 {
  scroll-margin-top: 100px;
}
.native-lab h4 {
  font-size: 14px;
  margin: 25px 0 12px;
}
.native-comparison {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.6fr);
  gap: 25px;
}
.native-comparison > .native-status {
  grid-column: 1 / -1;
}
.native-controls,
.native-results {
  min-width: 0;
}
.native-controls > label {
  display: block;
  color: var(--gold-soft);
  font-size: 12px;
  margin-bottom: 18px;
}
.native-controls select {
  display: block;
  width: 100%;
  margin-top: 8px;
  background: #141412;
  border: 1px solid #5d533a;
  border-radius: 7px;
  color: var(--text);
  padding: 10px;
}
.native-readings {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.native-reading {
  padding: 16px;
  background: #141412;
  border: 1px solid var(--line);
  border-radius: 10px;
}
.native-reading .result-label {
  display: block;
  margin: 0;
}
.native-reading strong {
  display: block;
  color: var(--gold-soft);
  font-size: 24px;
  font-weight: 500;
  margin: 10px 0;
}
.native-reading p {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.85;
}
.native-results svg {
  display: block;
  width: 100%;
  height: auto;
}
.native-legend {
  color: var(--gold-soft);
  font-size: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}
.native-table-wrap {
  max-width: 100%;
  overflow-x: auto;
}
.native-table-wrap table {
  min-width: 480px;
}
.native-check-list {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  margin: 20px 0;
}
.native-check-list button {
  justify-content: flex-start;
}
.native-check-list span {
  font-size: 11px;
  color: var(--gold-soft);
}
.native-lab .button {
  margin: 14px 12px 0 0;
}
@media (max-width: 760px) {
  .native-comparison {
    grid-template-columns: 1fr;
  }
  .native-readings {
    grid-template-columns: 1fr;
  }
  .native-reading strong {
    font-size: 25px;
  }
}
.education-hero {
  display: grid;
  grid-template-columns: 1fr 210px;
  align-items: center;
  gap: 70px;
  padding: 65px 0;
}
.education-hero h1 {
  font-size: 60px;
}
.education-hero p:not(.eyebrow) {
  max-width: 620px;
  color: var(--muted);
  font-size: 15px;
  margin-top: 25px;
}
.education-hero img {
  width: 175px;
  justify-self: center;
  filter: drop-shadow(0 15px 20px #0008);
}
.campaign-heading,
.path-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 25px;
  margin-bottom: 25px;
}
.campaign-heading h2 {
  font-size: 33px;
  letter-spacing: -1px;
}
.campaigns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.campaign-card {
  padding: 25px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel);
}
.campaign-active {
  border-color: #8b7549;
  background: #242119;
}
.campaign-card h3 {
  font-size: 21px;
}
.campaign-card p {
  font-size: 12px;
  color: var(--muted);
  margin-top: 13px;
}
.campaign-card > span:last-child {
  display: block;
  color: var(--gold-soft);
  font-size: 12px;
  margin-top: 20px;
}
.campaign-scope {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.9;
  margin-top: 18px;
}
.campaign-workspace {
  padding-top: 60px;
}
.path-header h2 {
  font-size: 40px;
}
.path-header .eyebrow {
  margin-bottom: 12px;
}
.progress-summary {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.progress-summary strong {
  font-size: 14px;
  color: var(--gold-soft);
  font-weight: 500;
}
.progress-summary span {
  font-size: 10px;
  color: var(--muted);
  max-width: 330px;
}
.lesson-path {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 25px;
}
.lesson-path button {
  padding: 15px 13px;
  text-align: left;
  background: #191917;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-size: 12px;
  min-height: 78px;
}
.lesson-path button[aria-current="true"] {
  border-color: #9c8350;
  background: #2a261c;
}
.lesson-path button span {
  display: block;
  font-size: 10px;
  color: var(--gold);
  margin-top: 6px;
}
.lesson-player {
  border: 1px solid #615337;
  border-radius: 20px;
  background: var(--panel);
  padding: 35px;
  scroll-margin-top: 100px;
}
.player-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.player-header .eyebrow {
  margin-bottom: 12px;
}
.player-header h2 {
  font-size: 38px;
  letter-spacing: -1.1px;
}
.lesson-intro {
  max-width: 850px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
  margin-top: 20px;
}
.stage-path {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-block: 1px solid var(--line);
  padding-block: 16px;
  margin-top: 26px;
}
.stage-path button {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 11px;
  border-radius: 6px;
  padding: 8px 12px;
  min-height: 40px;
}
.stage-path button[aria-current="step"] {
  background: #312b1d;
  border-color: #665638;
  color: var(--gold-soft);
}
button:disabled {
  cursor: default;
  color: #aaa79a;
  background: #242420;
  opacity: 0.65;
}
.lesson-stage {
  padding-top: 30px;
}
.lesson-stage h3 {
  font-size: 25px;
  margin-bottom: 20px;
  scroll-margin-top: 100px;
}
.player-header h2 {
  scroll-margin-top: 100px;
}
.question-prompt {
  max-width: 870px;
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 22px;
}
.lesson-stage fieldset {
  padding: 0;
  margin: 0 0 23px;
  border: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.lesson-stage fieldset legend:not(.sr-only) {
  font-size: 15px;
  margin-bottom: 20px;
}
.lesson-stage fieldset label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141412;
  max-width: 780px;
  cursor: pointer;
  min-height: 48px;
}
.lesson-stage input[type="radio"] {
  accent-color: var(--gold);
  width: 17px;
  height: 17px;
  flex-shrink: 0;
}
.feedback {
  font-size: 13px;
  color: var(--gold-soft);
  line-height: 1.85;
  max-width: 850px;
  margin: 20px 0;
}
.feedback:empty {
  display: none;
}
.button-outline {
  border: 1px solid #8c7447;
  color: var(--gold-soft);
  background: #211e16;
}
.experiment-goal {
  font-size: 13px;
  line-height: 1.85;
  color: #d8cfb8;
  border-left: 2px solid var(--gold);
  padding-left: 16px;
  margin-bottom: 24px;
}
.experiment-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.control-group {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 15px;
  background: #141412;
}
.control-group > label {
  font-size: 12px;
  color: var(--gold-soft);
}
.number-control {
  display: flex;
  gap: 9px;
  margin-top: 13px;
}
.number-control input {
  min-width: 0;
  width: 100%;
  background: #10100e;
  border: 1px solid #5d533a;
  border-radius: 7px;
  color: var(--text);
  padding: 9px;
  font-size: 15px;
}
.number-control button {
  min-width: 42px;
  min-height: 44px;
  border: 1px solid #5d533a;
  border-radius: 7px;
  background: #242017;
  color: var(--gold-soft);
  font-size: 19px;
}
.control-unit {
  font-size: 10px;
  color: var(--muted);
  margin-top: 8px;
}
.experiment-view {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #141412;
  min-width: 0;
}
.experiment-view .result-label {
  margin-top: 20px;
}
.experiment-value {
  display: block;
  font-family: Georgia, serif;
  font-size: 44px;
  font-weight: 400;
  color: var(--gold-soft);
  line-height: 1.4;
}
#model-comparison {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.8;
  margin-top: 8px;
}
#campaign-chart {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 20px;
}
.chart-context {
  font-size: 10px;
  color: var(--muted);
  margin-top: 8px;
}
.numeric-view {
  font-size: 12px;
  margin-top: 18px;
  border-top: 1px solid var(--line);
  padding-top: 13px;
}
.numeric-view table {
  width: 100%;
  font-size: 12px;
  border-collapse: collapse;
  text-align: left;
  margin-top: 14px;
}
.numeric-view caption {
  text-align: left;
  font-size: 11px;
  color: var(--muted);
  padding-bottom: 12px;
}
.numeric-view td,
.numeric-view th {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
}
.numeric-view td {
  color: var(--muted);
}
#interpretation-form {
  margin-top: 30px;
  padding-top: 25px;
  border-top: 1px solid var(--line);
}
.takeaway-stage > p:not(.lesson-counter) {
  font-size: 15px;
  line-height: 1.9;
  max-width: 850px;
  margin-block: 20px;
}
.takeaway-stage .completion-note {
  font-size: 12px !important;
  color: var(--muted);
}
.takeaway-stage .text-link {
  margin-left: 25px;
}
.campaign-assumptions {
  padding-top: 20px;
  margin-top: 30px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  color: var(--muted);
}
.campaign-assumptions p {
  margin-top: 12px;
  line-height: 1.9;
  max-width: 900px;
}
.campaign-assumptions a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.future-data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  margin-top: 65px;
  border-top: 1px solid var(--line);
  padding-top: 45px;
}
.future-data h2 {
  font-size: 42px;
}
.future-data p:not(.eyebrow) {
  font-size: 12px;
  line-height: 1.9;
  color: var(--muted);
  margin-top: 20px;
}
.future-data ul {
  font-size: 12px;
  color: #d2c8b0;
  display: grid;
  gap: 15px;
  padding-top: 8px;
}
.future-data li::before {
  content: "+";
  color: var(--gold);
  margin-right: 10px;
}
@media (max-width: 760px) {
  .education-hero {
    grid-template-columns: 1fr 120px;
    gap: 25px;
    padding: 40px 0;
  }
  .education-hero h1 {
    font-size: 43px;
  }
  .education-hero img {
    width: 110px;
  }
  .education-hero p:not(.eyebrow) {
    font-size: 13px;
    margin-top: 20px;
  }
  .campaign-heading h2 {
    font-size: 29px;
  }
  .campaigns {
    grid-template-columns: 1fr;
  }
  .campaign-card {
    padding: 23px;
  }
  .path-header {
    align-items: flex-start;
    flex-direction: column;
  }
  .path-header h2 {
    font-size: 36px;
  }
  .progress-summary {
    text-align: left;
  }
  .lesson-path {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .lesson-path button {
    font-size: 12px;
    min-height: 75px;
  }
  .lesson-player {
    padding: 24px;
  }
  .player-header {
    flex-direction: column;
    gap: 8px;
  }
  .player-header h2 {
    font-size: 34px;
  }
  .lesson-intro {
    font-size: 13px;
  }
  .stage-path {
    gap: 5px;
  }
  .stage-path button {
    font-size: 10px;
    padding: 8px 9px;
  }
  .question-prompt {
    font-size: 14px;
  }
  .lesson-stage h3 {
    font-size: 23px;
  }
  .lesson-stage fieldset label {
    font-size: 12px;
  }
  .experiment-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .control-group {
    margin-bottom: 0;
  }
  .control-group + .control-group {
    margin-top: 15px;
  }
  .experiment-view {
    padding: 22px;
  }
  .numeric-view td,
  .numeric-view th {
    padding: 9px 5px;
  }
  .future-data {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 45px;
  }
  .future-data h2 {
    font-size: 38px;
  }
  .takeaway-stage .text-link {
    display: flex;
    margin: 22px 0 0;
  }
  .campaign-workspace {
    padding-top: 45px;
  }
}
@media (max-width: 420px) {
  .education-hero {
    grid-template-columns: 1fr;
  }
  .education-hero img {
    display: none;
  }
  .education-hero h1 {
    font-size: 44px;
  }
  .campaign-heading {
    gap: 15px;
    align-items: flex-start;
    flex-direction: column;
  }
  .campaign-heading h2 {
    font-size: 28px;
  }
  .lesson-player {
    padding: 21px;
  }
  .lesson-stage .button {
    max-width: 100%;
    font-size: 12px;
  }
  .stage-path button {
    padding: 8px 7px;
  }
  .player-header h2 {
    font-size: 30px;
  }
  .lesson-path button {
    padding: 13px 11px;
  }
  .experiment-view {
    padding: 20px;
  }
}