:root {
  color-scheme: light;
  --paper: #f6f7f2;
  --paper-strong: #ffffff;
  --ink: #0b151c;
  --ink-soft: #34444d;
  --muted: #5d696f;
  --line: #d9e0dc;
  --line-dark: #2a3941;
  --lime: #c8ff4d;
  --lime-dark: #8fca00;
  --blue: #2457e6;
  --blue-dark: #173bab;
  --red: #ff6b4a;
  --shell: min(1240px, calc(100vw - 64px));
  --hero-header-height: 76px;
  /* Intentional system stacks keep typography private and immediately available. */
  --display: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

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

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 100;
  transform: translateY(-160%);
  background: var(--lime);
  color: var(--ink);
  padding: 10px 14px;
  font-weight: 800;
}

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

.section-shell,
.hero-shell {
  width: var(--shell);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 76px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
  padding: 0 max(32px, calc((100vw - 1240px) / 2));
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 96%, transparent);
}

.brand,
.site-nav a,
.header-action {
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-weight: 800;
  letter-spacing: -.02em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  font-family: var(--mono);
  font-size: 14px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: 14px;
  font-weight: 700;
}

.site-nav a,
.footer-links a { text-underline-offset: 5px; }
.site-nav a:hover,
.footer-links a:hover { text-decoration: underline; }

.header-action {
  justify-self: end;
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--blue);
  font-size: 14px;
  font-weight: 800;
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--hero-header-height));
  overflow: hidden;
  border-bottom: 1px solid var(--ink);
}

.hero-shell {
  --outcome-number-column: 150px;
  --outcome-column-gap: 26px;
  min-height: calc(100svh - var(--hero-header-height));
  display: flex;
  flex-direction: column;
  padding: clamp(28px, 5vh, 54px) 0 24px;
}

.hero-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 32px;
  align-items: center;
  margin-bottom: clamp(22px, 4vh, 40px);
}

.hero-context,
.hero-proof,
.section-label,
.player-module {
  margin: 0;
  font-size: 12px;
  font-weight: 800;
}

.hero-context {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.live-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--lime-dark);
  box-shadow: 0 0 0 4px rgba(143, 202, 0, .13);
}

.hero-proof {
  color: var(--muted);
  font-family: var(--mono);
  text-align: right;
}

.hero h1 {
  grid-column: 1 / -1;
  max-width: 800px;
  margin: 0;
  font-size: clamp(42px, 5.3vw, 80px);
  font-weight: 800;
  line-height: .97;
  letter-spacing: -.035em;
  text-wrap: normal;
}

.hero h1 span { color: var(--blue); }
.hero-title-break { display: block; }

.outcome-list {
  margin-top: auto;
  border-top: 1px solid var(--ink);
}

.outcome {
  position: relative;
  display: grid;
  grid-template-columns: var(--outcome-number-column) minmax(0, 1fr) 330px;
  gap: var(--outcome-column-gap);
  align-items: center;
  min-height: 104px;
  padding: 12px 0;
  border-bottom: 1px solid var(--ink);
}

.outcome::before {
  position: absolute;
  left: -100vw;
  right: 100%;
  top: -1px;
  bottom: -1px;
  background: transparent;
  content: "";
  transition: background 520ms var(--ease);
}

.outcome.is-active::before { background: var(--lime); }

.outcome-number {
  position: relative;
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(44px, 4.2vw, 66px);
  font-weight: 700;
  line-height: .9;
  letter-spacing: -.05em;
}

.outcome-number span {
  position: relative;
  display: inline-block;
  width: 1.75em;
  isolation: isolate;
}

.outcome-number span::after {
  position: absolute;
  z-index: -1;
  left: -8px;
  right: -8px;
  bottom: -9px;
  height: 7px;
  background: var(--lime);
  content: "";
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 520ms var(--ease);
}

.outcome.is-active .outcome-number span::after {
  transform: scaleX(1);
  transform-origin: left center;
}

.outcome-copy h2 {
  max-width: 640px;
  margin: 0 0 6px;
  font-size: clamp(20px, 2.1vw, 30px);
  line-height: 1.08;
  letter-spacing: -.025em;
}

.outcome-copy p {
  max-width: 660px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.outcome-highlight {
  position: relative;
  z-index: 0;
  padding-inline: .12em;
}

.outcome-highlight::before {
  position: absolute;
  z-index: -1;
  inset: 0 -.02em;
  content: "";
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 520ms var(--ease);
}

.outcome.is-active .outcome-highlight::before {
  transform: scaleX(1);
  transform-origin: left center;
}

.outcome-highlight-nowrap { white-space: nowrap; }

.run-cell {
  width: 100%;
  min-height: 82px;
  display: grid;
  align-content: center;
  gap: 11px;
  padding: 13px 16px;
  border-radius: 12px;
  background: var(--ink);
  color: #eaf2ef;
  font-family: var(--mono);
  box-shadow: 0 8px 24px rgba(11, 21, 28, .12);
  opacity: .72;
  transform: translateX(4px);
  transition: opacity 420ms var(--ease), transform 420ms var(--ease), box-shadow 420ms var(--ease);
}

.outcome.is-active .run-cell {
  opacity: 1;
  transform: translateX(0);
  box-shadow: 8px 10px 28px rgba(11, 21, 28, .18);
}

.run-command,
.run-result {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
}

.run-command { color: #a8b9b2; }
.run-command span { color: var(--lime); }
.run-result strong { color: #fff; }
.run-result > span:last-child { margin-left: auto; color: #a8b9b2; }

.status-icon {
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  font-weight: 900;
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
  padding-top: 18px;
}

.hero-buttons {
  display: flex;
  gap: 12px;
  margin-left: calc(var(--outcome-number-column) + var(--outcome-column-gap));
}

.hero-buttons .button { flex: 0 0 200px; }

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 0;
  border-radius: 10px;
  padding: 12px 20px;
  text-decoration: none;
  font-weight: 800;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--blue); color: #fff; }
.button-primary:hover { background: var(--blue-dark); }
.button-secondary { border: 1px solid var(--ink); background: transparent; color: var(--ink); }
.button-secondary:hover { background: var(--ink); color: #fff; }

.outcome-note {
  max-width: 390px;
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  text-align: right;
}

.hero-meta {
  display: grid;
  gap: 5px;
  justify-items: end;
}

.pipeline-stage {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
}

.pipeline-stage span { color: var(--muted); }
.pipeline-stage strong { color: var(--blue); }

.hero-runner {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  overflow: hidden;
  background: var(--line);
}

.hero-runner span {
  display: block;
  width: 34%;
  height: 100%;
  background: var(--blue);
  animation: runner 9s var(--ease) infinite;
}

@keyframes runner {
  0% { transform: translateX(-100%); }
  30%, 34% { transform: translateX(95%); }
  63%, 67% { transform: translateX(195%); }
  96%, 100% { transform: translateX(295%); }
}

.course-overview { padding: 144px 0 0; }

.course-intro {
  display: grid;
  grid-template-columns: 1fr 2fr;
  column-gap: 70px;
  padding-bottom: 116px;
}

.course-intro-copy { grid-column: 2; }
.course-intro-copy > .section-label { margin: 0 0 14px; }

.section-label {
  color: var(--blue);
  font-family: var(--mono);
}

.course-intro h2 {
  max-width: 930px;
  margin: 0;
  font-size: clamp(36px, 4.1vw, 62px);
  line-height: 1.06;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.course-title-highlight {
  position: relative;
  z-index: 0;
  isolation: isolate;
  white-space: nowrap;
}

.course-title-highlight::before {
  position: absolute;
  inset: 0 -.03em;
  z-index: -1;
  background: var(--lime);
  content: "";
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 520ms var(--ease);
}

.course-title-highlight.is-highlighted::before {
  transform: scaleX(1);
  transform-origin: left center;
}

.course-lead {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--ink-soft);
  font-size: 20px;
}

.learn-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 70px;
  align-items: start;
  padding-bottom: 130px;
}

.learn-heading { position: sticky; top: 112px; }
.learn-heading h3,
.description-heading h3,
.testimonial-heading h3 {
  margin: 0 0 12px;
  font-size: clamp(32px, 3.2vw, 48px);
  line-height: 1.05;
  letter-spacing: -.03em;
}

.learn-heading p { max-width: 330px; margin: 0; color: var(--muted); }

.learn-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}

.learn-list li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 22px;
  align-items: baseline;
  padding: 26px 0;
  border-bottom: 1px solid var(--ink);
}

.learn-list span { color: var(--blue); font-family: var(--mono); font-size: 12px; }
.learn-list strong { font-size: clamp(19px, 2vw, 28px); line-height: 1.25; letter-spacing: -.02em; }

.testimonial-band {
  background: var(--blue);
  color: #fff;
  padding: 80px 0;
}

.testimonial-shell {
  width: var(--shell);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr) 150px;
  gap: 48px;
  align-items: start;
}

.section-label-light { margin-bottom: 12px; color: var(--lime); }
.testimonial-heading h3 { margin: 0; }

.testimonial-viewport {
  --testimonial-enter-x: 28px;
  --testimonial-exit-x: -20px;
  transition: opacity 220ms ease, transform 220ms var(--ease), filter 220ms ease;
  will-change: opacity, transform, filter;
}

.testimonial-viewport.is-leaving {
  opacity: 0;
  filter: blur(3px);
  transform: translateX(var(--testimonial-exit-x));
}

.testimonial-viewport.is-entering { animation: testimonial-swap-in 460ms var(--ease) both; }

@keyframes testimonial-swap-in {
  from { opacity: 0; filter: blur(3px); transform: translateX(var(--testimonial-enter-x)); }
  to { opacity: 1; filter: blur(0); transform: translateX(0); }
}

.testimonial-viewport blockquote {
  max-width: 780px;
  height: 5.9em;
  margin: 0 0 28px;
  display: -webkit-box;
  overflow: hidden;
  font-size: clamp(25px, 2.8vw, 42px);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -.025em;
  text-wrap: balance;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
}

.testimonial-meta {
  display: flex;
  height: 66px;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .45);
}

.testimonial-meta p { margin: 0; }
.testimonial-meta strong,
.testimonial-meta span { display: block; }
.testimonial-meta span { color: #dfe7ff; font-size: 13px; }
.rating { color: var(--lime); letter-spacing: .13em; }

.testimonial-controls {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  gap: 10px;
  align-items: center;
  align-self: end;
}

.icon-button {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.icon-button:hover { background: #fff; color: var(--blue); }

.testimonial-progress { height: 2px; overflow: hidden; background: rgba(255, 255, 255, .3); }
.testimonial-progress span { display: block; height: 100%; width: 0; background: var(--lime); animation: testimonial-progress 6s linear infinite; }
.testimonial-shell.is-paused .testimonial-progress span { animation-play-state: paused; }
@keyframes testimonial-progress { to { width: 100%; } }

.description-layout {
  display: grid;
  grid-template-columns: 340px minmax(0, 720px);
  gap: 90px;
  align-items: start;
  justify-content: space-between;
  padding: 144px 0 154px;
}

.description-heading { position: sticky; top: 112px; }
.description-heading h3 { margin: 10px 0 30px; }

.description-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.description-proof span {
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 11px;
  font-weight: 800;
}

.description-copy {
  position: relative;
  font-size: 19px;
  line-height: 1.72;
}

.description-copy p { margin: 0 0 26px; }
.description-copy ul {
  margin: -8px 0 30px;
  padding-left: 24px;
}

.description-copy li { padding: 4px 0 4px 8px; }
.description-copy li::marker { color: var(--blue); }
.description-copy h4 {
  margin: 56px 0 20px;
  font-size: clamp(28px, 2.8vw, 42px);
  line-height: 1.08;
  letter-spacing: -.03em;
}
.description-copy.js-ready {
  overflow: hidden;
  transition: max-height 620ms var(--ease);
}
.description-copy.is-collapsed { max-height: 500px; padding-bottom: 86px; }
.description-copy.is-expanded { max-height: var(--description-height); padding-bottom: 68px; }
.description-extra { display: block; }

.description-fade {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 185px;
  background: linear-gradient(to bottom, rgba(246, 247, 242, 0), var(--paper) 65%);
  pointer-events: none;
  transition: opacity 260ms ease;
}

.description-copy.is-expanded .description-fade { opacity: 0; }

.text-button {
  position: absolute;
  z-index: 2;
  left: 0;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  border: 0;
  border-bottom: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding: 10px 0 6px;
  font-weight: 800;
  cursor: pointer;
}

.text-button[hidden] { display: none; }

.course-start {
  background: var(--ink);
  color: #f4f7f5;
  padding: 140px 0 0;
}

.section-label-dark { color: var(--lime); }

.course-start-heading {
  display: block;
  margin-bottom: 72px;
}

.course-start-heading h2,
.enrollment-copy h2,
.faq-heading h2 {
  margin: 0;
  font-size: clamp(42px, 5vw, 72px);
  line-height: .98;
  letter-spacing: -.035em;
  text-wrap: balance;
}

.course-start-heading h2 {
  max-width: 760px;
  margin-top: 14px;
}

.course-start-heading > p:last-child {
  max-width: 600px;
  margin: 20px 0 0;
  color: #adbbb5;
  font-size: 18px;
}

.learning-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(480px, .95fr);
  gap: 50px;
  align-items: start;
  padding-bottom: 110px;
}

.lesson-player {
  position: sticky;
  top: 110px;
  border-radius: 16px;
  overflow: hidden;
  background: #111f27;
  box-shadow: 14px 18px 44px rgba(0, 0, 0, .28);
}

.player-screen {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  align-content: space-between;
  padding: 22px;
  background: #071017;
}

.player-screen::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  content: "";
  background: var(--lime);
  transform: scaleX(0);
  transform-origin: left;
}

.player-screen.is-playing::after { animation: sample-playback 3s linear forwards; }
@keyframes sample-playback { to { transform: scaleX(1); } }

.player-topline {
  display: flex;
  justify-content: flex-end;
  color: #9fb0a9;
  font-family: var(--mono);
  font-size: 11px;
}

.code-scene {
  width: min(90%, 560px);
  margin: auto;
  font-family: var(--mono);
  font-size: clamp(13px, 1.45vw, 18px);
  line-height: 1.9;
}

.code-scene p { margin: 0; }
.code-keyword { color: #85a9ff; }
.code-number { color: var(--lime); }
.code-result { margin-top: 18px; border-top: 1px solid #2d3b42; padding-top: 13px; color: #aab9b3; }
.code-result span { color: var(--lime); }

.play-button {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 72px;
  height: 72px;
  border: 0;
  border-radius: 50%;
  background: var(--lime);
  color: var(--ink);
  cursor: pointer;
  font-size: 24px;
  box-shadow: 8px 10px 28px rgba(0, 0, 0, .28);
}

.play-button:hover { background: #d7ff77; transform: translate(-50%, -50%) scale(1.04); }

.player-details { padding: 25px 28px 30px; }
.player-module { color: var(--lime); font-family: var(--mono); }
.player-details h3 { margin: 9px 0 10px; font-size: 25px; line-height: 1.18; letter-spacing: -.02em; }
.player-details p:last-child { margin: 0; color: #adbbb5; }

.curriculum-list { border-top: 1px solid var(--line-dark); }

.module {
  border-bottom: 1px solid var(--line-dark);
}

.module summary {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  list-style: none;
}

.module summary::-webkit-details-marker { display: none; }
.module summary strong,
.module summary small { display: block; }
.module summary strong { font-size: 20px; }
.module summary small { margin-top: 3px; color: #81938b; font-family: var(--mono); font-size: 11px; }
.module-icon { color: var(--lime); font-family: var(--mono); font-size: 22px; }
.module[open] .module-icon { transform: rotate(180deg); }

.lesson-list { list-style: none; margin: 0 0 20px; padding: 0; }
.lesson { border-top: 1px solid #1e2c33; }
.lesson button,
.locked-content {
  width: 100%;
  min-height: 68px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 14px;
  align-items: center;
  border: 0;
  background: transparent;
  color: #e8efec;
  padding: 10px 0;
  text-align: left;
}

.lesson button { cursor: pointer; }
.lesson button:hover { color: var(--lime); }
.lesson-active { background: #12232b; }
.lesson-active button { padding-inline: 14px; color: var(--lime); }
.lesson-status { color: var(--lime); font-family: var(--mono); }
.lesson-copy strong,
.lesson-copy small { display: block; }
.lesson-copy small { color: #81938b; font-family: var(--mono); font-size: 10px; }
.lesson time { color: #81938b; font-family: var(--mono); font-size: 11px; }

.lesson-locked {
  position: relative;
  display: none;
  min-height: 76px;
  overflow: hidden;
}

.lesson-locked.gate-ready { display: block; }

.locked-content { filter: blur(5px); opacity: .42; user-select: none; }
.unlock-inline {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: rgba(11, 21, 28, .7);
  color: var(--lime);
  text-decoration: none;
  font-weight: 800;
}

.lesson-list-preview { margin-top: -2px; }

.lesson-locked-simple {
  min-height: 54px;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 14px;
  align-items: center;
  border-top: 1px solid #1e2c33;
  color: #71827b;
  font-size: 13px;
}

.lesson-locked-simple .lesson-status { color: #5f7069; }

.enrollment-band {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--line-dark);
  background: #0f1d24;
  padding: 94px 0 100px;
}

.enrollment-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1.5fr;
  gap: 52px 80px;
  align-items: start;
}

.enrollment-copy h2 { max-width: 560px; margin-top: 14px; font-size: clamp(38px, 4.2vw, 60px); }

@media (min-width: 1021px) {
  .enrollment-copy > .section-label { margin: 22px 0 0; }
}

.enrollment-benefits {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-dark);
}

.enrollment-benefits li {
  display: grid;
  gap: 2px;
  padding: 22px 8px 22px 0;
  border-bottom: 1px solid var(--line-dark);
}

.enrollment-benefits li:nth-child(odd) { border-right: 1px solid var(--line-dark); }
.enrollment-benefits li:nth-child(even) { padding-left: 22px; }
.enrollment-benefits strong { font-size: 22px; color: var(--lime); }
.enrollment-benefits span { color: #9aaca4; font-size: 13px; }
.button-lime {
  --enrollment-signal-x: 1.34;
  --enrollment-signal-y: 1.48;
  position: relative;
  isolation: isolate;
  grid-column: 2;
  justify-self: start;
  overflow: visible;
  background: var(--lime);
  color: var(--ink);
  box-shadow: 0 12px 34px rgba(200, 255, 77, .16);
}

.button-lime.is-signaling {
  animation: enrollment-button-focus 3.8s ease-in-out infinite;
}

.button-lime > span { display: inline-block; }
.button-lime.is-signaling > span { animation: enrollment-arrow-cue 3.8s var(--ease) infinite; }

.button-lime::before,
.button-lime::after {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: rgba(200, 255, 77, .34);
  content: "";
  opacity: 0;
  pointer-events: none;
  will-change: transform, opacity;
}

.button-lime.is-signaling::before,
.button-lime.is-signaling::after {
  animation: enrollment-signal 3.8s cubic-bezier(.16, 1, .3, 1) infinite;
}

.button-lime.is-signaling::after { animation-delay: .52s; }

@keyframes enrollment-signal {
  0%, 8% { opacity: 0; transform: scale(.98); }
  14% { opacity: .42; transform: scale(1.02); }
  46%, 100% { opacity: 0; transform: scale(var(--enrollment-signal-x), var(--enrollment-signal-y)); }
}

@keyframes enrollment-button-focus {
  0%, 8%, 46%, 100% {
    filter: brightness(1);
    box-shadow: 0 12px 34px rgba(200, 255, 77, .16);
  }
  17% {
    filter: brightness(1.1);
    box-shadow: 0 16px 42px rgba(200, 255, 77, .34);
  }
}

@keyframes enrollment-arrow-cue {
  0%, 12%, 28%, 100% { transform: translate(0); }
  18% { transform: translate(3px, -3px); }
}

.button-lime:hover { background: #dcff87; }

.faq { padding: 144px 0 130px; }

.faq-layout {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 100px;
  align-items: start;
}

.faq-heading { position: sticky; top: 112px; }
.faq-heading h2 { margin: 12px 0 20px; font-size: clamp(40px, 4.2vw, 62px); }
.faq-heading > p:last-child { max-width: 410px; margin: 0; color: var(--muted); }
.faq-list { border-top: 1px solid var(--ink); }
.faq-list details { border-bottom: 1px solid var(--ink); }
.faq-list summary {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  cursor: pointer;
  list-style: none;
  font-size: 19px;
  font-weight: 800;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary span { color: var(--blue); font-family: var(--mono); font-size: 22px; transition: transform 180ms ease; }
.faq-list details[open] summary span { transform: rotate(45deg); }
.faq-list details p { max-width: 66ch; margin: -8px 0 28px; color: var(--ink-soft); }

.site-footer {
  padding: 78px 0 34px;
  background: var(--ink);
  color: var(--paper);
}

.footer-layout {
  display: grid;
  grid-template-columns: minmax(0, .8fr) minmax(420px, 1.2fr);
  gap: 68px 110px;
  align-items: start;
}

.footer-brand {
  color: var(--paper);
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}

.footer-intro > p {
  max-width: 360px;
  margin: 12px 0 0;
  color: #adbbb5;
}

.footer-links {
  display: grid;
  max-width: 360px;
  margin-top: 34px;
  border-top: 1px solid var(--line-dark);
  font-size: 14px;
  font-weight: 700;
}

.footer-links a {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-dark);
  color: var(--paper);
  text-decoration: none;
}

.footer-links a:hover { color: var(--lime); text-decoration: none; }
.footer-links a span:last-child { color: var(--lime); font-family: var(--mono); }

.subscribe-form label {
  display: block;
  font-size: clamp(34px, 3.7vw, 54px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.03em;
}

.subscribe-form > p {
  max-width: 570px;
  margin: 18px 0 0;
  color: #adbbb5;
}

.subscribe-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  margin-top: 28px;
}

.subscribe-row input,
.subscribe-row button {
  min-height: 56px;
  border-radius: 10px;
  font: inherit;
}

.subscribe-row input {
  min-width: 0;
  border: 1px solid #40515a;
  background: #14242d;
  color: var(--paper);
  padding: 12px 16px;
}

.subscribe-row input::placeholder { color: #96a59f; }
.subscribe-row input:focus-visible { border-color: var(--lime); outline-color: var(--lime); }

.subscribe-row button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 0;
  background: var(--lime);
  color: var(--ink);
  padding: 12px 22px;
  font-weight: 800;
  cursor: pointer;
}

.subscribe-row button:hover { background: #d7ff77; }

.subscribe-status {
  min-height: 24px;
  margin-top: 10px !important;
  color: var(--lime) !important;
  font-size: 13px;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: center;
  padding-top: 26px;
  border-top: 1px solid var(--line-dark);
}

.footer-meta {
  margin: 0;
  color: #adbbb5;
  font-family: var(--mono);
  font-size: 12px;
}

.footer-meta span { color: inherit; }
.footer-bottom > a { color: var(--paper); font-size: 13px; font-weight: 700; text-decoration: none; }
.footer-bottom > a:hover { color: var(--lime); }

@media (max-width: 1020px) {
  :root { --shell: min(100% - 40px, 900px); }
  .site-header { padding-inline: 20px; }
  .hero-shell {
    --outcome-number-column: 100px;
    --outcome-column-gap: 18px;
  }
  .outcome { grid-template-columns: var(--outcome-number-column) minmax(0, 1fr) 250px; }
  .run-cell { grid-column: auto; }
  .hero-actions {
    grid-template-columns: calc(var(--outcome-number-column) + var(--outcome-column-gap)) minmax(0, 1fr);
    gap: 14px 0;
  }
  .hero-buttons,
  .hero-meta { grid-column: 2; }
  .hero-buttons { margin-left: 0; }
  .course-intro,
  .learn-grid { grid-template-columns: 1fr 2fr; gap: 48px; }
  .testimonial-shell { grid-template-columns: 190px 1fr; }
  .testimonial-controls { grid-column: 2; max-width: 220px; }
  .description-layout { grid-template-columns: 280px 1fr; gap: 55px; }
  .learning-layout { grid-template-columns: 1fr; }
  .lesson-player { position: relative; top: 0; }
  .enrollment-layout { grid-template-columns: 1fr; }
  .button-lime { grid-column: 1; }
  .faq-layout { gap: 60px; }
}

@media (max-width: 720px), (max-height: 700px) {
  .hero {
    height: calc(100svh - var(--hero-header-height));
    min-height: calc(100svh - var(--hero-header-height));
  }
  .hero-shell { height: 100%; min-height: 0; }
  .outcome-list {
    display: flex;
    gap: 0;
    margin-top: auto;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline mandatory;
    scrollbar-width: none;
  }
  .outcome-list::-webkit-scrollbar { display: none; }
  .outcome {
    flex: 0 0 100%;
    background: var(--paper);
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }
  .outcome::before { display: none; }
  .pipeline-stage { display: none; }
}

@media (max-width: 720px) {
  :root { --shell: calc(100% - 32px); --hero-header-height: 66px; }
  .site-header { min-height: 66px; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; }
  .site-nav { display: none; }
  .global-menu { display: none; }
  .header-action { display: inline-flex; gap: 6px; font-size: 12px; white-space: nowrap; }
  .hero-shell {
    --outcome-number-column: 82px;
    --outcome-column-gap: 14px;
    padding: 28px 0 22px;
  }
  .hero-heading { display: block; }
  .hero-proof { margin-top: 9px; text-align: left; }
  .hero h1 { max-width: none; margin-top: 26px; font-size: clamp(42px, 13.2vw, 66px); }
  .hero-title-break { display: none; }
  .outcome {
    grid-template-columns: var(--outcome-number-column) minmax(0, 1fr);
    min-height: 150px;
    padding: 18px 0;
  }
  .outcome-number { font-size: 38px; }
  .outcome-copy h2 { font-size: 21px; }
  .run-cell { display: none; }
  .hero-actions { display: block; padding-top: 12px; }
  .hero-buttons { display: none; }
  .hero-meta { justify-items: start; }
  .button-lime {
    --enrollment-signal-x: 1.04;
    --enrollment-signal-y: 1.34;
  }
  .outcome-note { text-align: left; }
  .course-overview { padding-top: 92px; }
  .course-intro,
  .learn-grid,
  .description-layout,
  .testimonial-shell,
  .faq-layout { grid-template-columns: 1fr; }
  .course-intro { padding-bottom: 78px; }
  .course-intro h2,
  .course-lead { grid-column: 1; }
  .course-intro-copy { grid-column: 1; }
  .course-intro h2 { font-size: 37px; }
  .course-lead { font-size: 17px; }
  .learn-grid { gap: 38px; padding-bottom: 90px; }
  .learn-heading,
  .description-heading,
  .faq-heading { position: relative; top: auto; }
  .learn-list li { grid-template-columns: 40px 1fr; gap: 10px; }
  .testimonial-band { padding: 66px 0; }
  .testimonial-shell { gap: 30px; align-items: start; }
  .testimonial-viewport blockquote { height: 7.08em; font-size: 26px; -webkit-line-clamp: 6; }
  .testimonial-meta { height: 86px; align-items: flex-start; }
  .testimonial-meta .rating { font-size: 11px; }
  .testimonial-controls { grid-column: 1; }
  .description-layout { gap: 46px; padding: 94px 0 100px; }
  .course-start { padding-top: 92px; }
  .learning-layout { padding-bottom: 74px; }
  .curriculum-list { min-width: 0; }
  .lesson-player { border-radius: 12px; }
  .player-screen { padding: 16px; }
  .code-scene { width: 100%; font-size: 11px; }
  .module summary strong { font-size: 17px; }
  .lesson button,
  .locked-content { grid-template-columns: 25px 1fr auto; gap: 8px; }
  .enrollment-band { padding: 72px 0 78px; }
  .enrollment-benefits { grid-template-columns: 1fr; }
  .enrollment-benefits li,
  .enrollment-benefits li:nth-child(odd),
  .enrollment-benefits li:nth-child(even) { border-right: 0; padding-left: 0; }
  .faq { padding: 94px 0 90px; }
  .faq-layout { gap: 50px; }
  .site-footer { padding-top: 62px; }
  .footer-layout { grid-template-columns: 1fr; gap: 54px; }
  .subscribe-form { grid-row: 1; }
  .footer-intro { grid-row: 2; }
  .subscribe-row { grid-template-columns: 1fr; }
  .footer-bottom { grid-column: 1; grid-row: 3; align-items: flex-start; }
}

@media (min-width: 721px) and (max-height: 700px) {
  .hero-actions { display: none; }
}

@media (max-width: 720px) and (max-height: 700px) {
  .hero-shell { padding-block: 20px 16px; }
  .hero h1 { margin-top: 18px; font-size: clamp(40px, 12.5vw, 58px); }
  .outcome { min-height: 98px; padding-block: 14px; }
  .outcome-copy p,
  .hero-actions { display: none; }
}

@media (max-width: 720px) and (max-height: 540px) {
  .outcome-list,
  .hero-actions { display: none; }
  .hero-heading { margin: 0; }
  .hero h1 { margin-top: 18px; }
}

@media (max-width: 720px) and (max-height: 420px) {
  .hero-shell { padding-block: 12px; }
  .hero h1 { font-size: clamp(32px, 10.5vw, 46px); }
}

@media (min-width: 721px) and (max-height: 500px) {
  .hero h1 { font-size: clamp(42px, 4vw, 58px); }
}

@media (min-width: 721px) and (max-height: 420px) {
  .outcome-list,
  .hero-actions { display: none; }
  .hero-heading { margin: 0; }
}

@media (max-width: 380px) {
  .outcome-highlight-nowrap { font-size: .85em; }
}

@media (max-width: 340px) {
  .brand > span:last-child { display: none; }
}

@media (min-width: 721px) and (max-height: 820px) {
  .hero-shell { padding-top: 20px; padding-bottom: 14px; }
  .hero-heading { margin-bottom: 18px; }
  .outcome { min-height: 86px; padding-block: 8px; }
  .outcome-number { font-size: 42px; }
  .outcome-copy h2 { margin-bottom: 3px; font-size: 21px; }
  .outcome-copy p { font-size: 12px; }
  .run-cell { min-height: 64px; gap: 6px; padding: 8px 12px; }
  .run { font-size: 9px; }
  .hero-actions { padding-top: 11px; }
  .button { min-height: 46px; padding-block: 9px; }
}

@media (min-width: 1021px) and (min-height: 821px) {
  .hero-shell { padding-top: 54px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .button-lime.is-signaling,
  .button-lime.is-signaling > span,
  .button-lime.is-signaling::before,
  .button-lime.is-signaling::after { animation: none; }
  .button-lime::before { animation: none; opacity: .16; transform: scale(1.08, 1.14); }
  .button-lime::after { display: none; }
}