:root {
  --lime: #d2ff58;
  --dark: #202231;
  --purple: #8051ff;
  --purple-deep: #3f326f;
  --white: #fafafa;
  --line: rgba(210, 255, 88, 0.9);
  --mono: "Courier New", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: "Inter Tight", Inter, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--dark);
  background: var(--dark);
  font-family: var(--sans);
  letter-spacing: 0;
}

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

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

.topbar {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  height: 80px;
  display: flex;
  align-items: center;
  gap: 36px;
  padding: 0 max(24px, calc((100vw - 1200px) / 2));
  color: var(--white);
  background: rgba(32, 34, 49, 0.95);
  backdrop-filter: blur(12px);
}

.logo {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 4px 8px;
  color: var(--lime);
  background: var(--dark);
  font: 800 20px/1 var(--mono);
}

.logo-large {
  font-size: 31px;
}

.nav {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-weight: 700;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  border: 2px solid currentColor;
  font: 800 16px/1 var(--mono);
  cursor: pointer;
}

.button-accent {
  color: var(--dark);
  background: var(--lime);
  border-color: var(--lime);
}

.button-light {
  color: var(--dark);
  background: var(--white);
  border-color: var(--white);
}

.button-purple {
  color: var(--white);
  background: var(--purple);
  border-color: var(--purple);
}

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.narrow {
  width: min(780px, calc(100% - 40px));
}

.center {
  text-align: center;
}

.lime-section {
  background: var(--lime);
}

.dark-section {
  color: var(--white);
  background: var(--dark);
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 130px 20px 80px;
  text-align: center;
}

.hero-inner {
  display: grid;
  justify-items: center;
  gap: 34px;
}

.brand-block p {
  max-width: 250px;
  margin: 10px auto 0;
  font-size: 17px;
  line-height: 1.08;
}

h1,
h2,
h3,
.hero-subtitle {
  font-family: var(--mono);
  letter-spacing: 0;
}

h1 {
  max-width: 1040px;
  margin: 35px 0 0;
  font-size: clamp(38px, 5.8vw, 82px);
  line-height: 0.94;
}

.hero-subtitle {
  max-width: 960px;
  margin: 0;
  font-size: clamp(24px, 3vw, 42px);
  font-weight: 800;
  line-height: 1.12;
}

mark {
  color: var(--purple);
  background: none;
}

.program-link {
  display: inline-flex;
  max-width: 820px;
  padding: 14px 18px;
  border: 3px solid var(--lime);
  color: var(--lime);
  background: transparent;
  font: 900 18px/1.15 var(--mono);
}

.hero-program-link {
  color: var(--dark);
  border-color: var(--dark);
}

.inline-link {
  color: var(--lime);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.scroll-cue {
  margin-top: 90px;
  font: 800 18px/0.9 var(--mono);
}

.scroll-cue b {
  display: block;
  margin-top: 8px;
  font-size: 30px;
}

.ticker {
  overflow: hidden;
  border-top: 4px solid var(--dark);
  border-bottom: 4px solid var(--dark);
  background: var(--white);
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker 22s linear infinite;
}

.ticker span {
  min-width: 150px;
  padding: 11px 18px;
  border-right: 4px solid var(--dark);
  color: var(--purple-deep);
  font: 900 24px/1 var(--mono);
  text-align: center;
}

@keyframes ticker {
  to {
    transform: translateX(-50%);
  }
}

.formula {
  padding: 130px 0 150px;
}

.muted {
  color: rgba(250, 250, 250, 0.6);
}

.formula h2 {
  margin: 24px 0 56px;
  font-size: clamp(34px, 5vw, 74px);
  line-height: 1.08;
}

.formula h2 span {
  color: var(--lime);
}

.actions {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.stats {
  min-height: 210px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 20px;
  padding: 36px max(24px, calc((100vw - 1160px) / 2));
  text-align: center;
}

.stat strong {
  display: block;
  font: 900 80px/0.8 var(--mono);
}

.stat p {
  max-width: 260px;
  margin: 12px auto 0;
  font-weight: 800;
  line-height: 1.05;
}

.stat-percent strong {
  font-size: 96px;
}

.about,
.learning,
.lesson-list,
.promises,
.lessons,
.reviews,
.faq {
  padding: 96px 0;
}

.about-grid,
.learning-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: center;
}

.label {
  display: inline-block;
  margin: 0 0 24px;
  padding: 4px 10px;
  color: var(--lime);
  background: var(--purple);
  font: 800 20px/1.1 var(--mono);
}

.about h2,
.learning h2,
.promises h2,
.lessons h2,
.reviews h2,
.faq h2 {
  margin: 0 0 32px;
  font-size: clamp(32px, 4.8vw, 64px);
  line-height: 1.02;
}

.lead {
  font: 800 30px/1.1 var(--mono);
}

.small {
  font-size: 15px;
}

.about-copy p:not(.label) {
  font-size: 20px;
  line-height: 1.28;
}

.portrait-wrap {
  position: relative;
  min-height: 620px;
  display: grid;
  align-items: end;
}

.portrait-wrap::before {
  content: "";
  position: absolute;
  inset: 24% 3% 8% 20%;
  border: 12px solid var(--purple);
  transform: rotate(-6deg);
}

.portrait-wrap img {
  position: relative;
  z-index: 2;
  width: min(560px, 100%);
  margin-left: auto;
  filter: drop-shadow(0 0 0 var(--purple));
}

.asterisk {
  position: absolute;
  z-index: 1;
  right: 8%;
  top: 5%;
  color: var(--purple-deep);
  font: 900 360px/0.8 var(--mono);
}

.learning-grid {
  grid-template-columns: 1fr 420px;
}

.learning p {
  font-size: 20px;
  line-height: 1.35;
}

.calculator {
  border: 4px solid var(--lime);
  padding: 26px;
  background: var(--lime);
  color: var(--dark);
}

.calculator h3 {
  margin: 0 0 14px;
  font-size: 34px;
}

.calculator output {
  display: block;
  margin-bottom: 24px;
  color: var(--purple);
  font: 900 40px/1 var(--mono);
}

.calculator label {
  display: grid;
  gap: 8px;
  margin: 18px 0;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 42px;
  border: 0;
  padding: 0 14px;
  background: var(--white);
  color: var(--dark);
  font: 700 15px var(--sans);
}

input[type="range"] {
  accent-color: var(--purple);
  padding: 0;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin: 24px 0;
}

.segmented button {
  min-height: 38px;
  border: 2px solid var(--dark);
  background: transparent;
  color: var(--dark);
  font: 800 13px/1 var(--mono);
  cursor: pointer;
}

.segmented button.active {
  background: var(--purple);
  color: var(--white);
  border-color: var(--purple);
}

.lesson-list {
  padding-top: 0;
}

.lesson-list details {
  border: 3px solid var(--line);
  padding: 24px;
}

.lesson-list summary {
  font: 900 34px/1.1 var(--mono);
  cursor: pointer;
}

.lesson-list ol {
  columns: 2;
  column-gap: 56px;
  padding-left: 24px;
  margin: 28px 0 0;
}

.lesson-list li {
  break-inside: avoid;
  margin: 0 0 12px;
  font-size: 18px;
  line-height: 1.25;
}

.lesson-list .program-link {
  margin-top: 22px;
}

.promise-grid,
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.promise-grid article,
.review-row article {
  border: 3px solid var(--line);
  padding: 24px;
}

.promise-grid b {
  color: var(--purple);
  font: 900 96px/0.75 var(--mono);
}

.promise-grid p,
.review-row p {
  font-size: 19px;
  line-height: 1.25;
}

.banner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  margin-top: 28px;
  padding: 18px 24px;
  background: var(--purple);
}

.banner strong {
  color: var(--lime);
  font: 900 42px/1 var(--mono);
}

.video-placeholder {
  aspect-ratio: 16 / 8;
  display: grid;
  place-items: center;
  margin: 32px 0;
  background: #000;
  color: rgba(250, 250, 250, 0.4);
  font: 900 42px/1 var(--mono);
}

.review-row {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(280px, 1fr);
  gap: 18px;
  overflow-x: auto;
  padding-bottom: 10px;
}

.review-row article {
  min-height: 300px;
}

.review-row b,
.review-row span {
  display: block;
  margin-top: 18px;
  color: var(--lime);
  font-family: var(--mono);
}

.lead-form-section {
  padding: 80px 0 70px;
}

.lead-form-section h2 {
  margin: 0 0 28px;
  text-align: center;
  font: 900 32px/1 var(--mono);
}

.lead-form {
  display: grid;
  gap: 12px;
}

.checkbox {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 13px;
}

.checkbox input {
  width: 16px;
  min-height: 16px;
}

.form-status {
  min-height: 20px;
  margin: 0;
  font-weight: 800;
}

.faq details {
  border-top: 2px solid var(--line);
}

.faq details:last-child {
  border-bottom: 2px solid var(--line);
}

.faq summary {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0;
  font: 800 17px/1.25 var(--mono);
  cursor: pointer;
}

.faq summary::after {
  content: "+";
  color: var(--purple);
  font-size: 28px;
  line-height: 0.75;
}

.faq details[open] summary::after {
  content: "-";
}

.faq p {
  margin: 0 0 22px;
  color: rgba(250, 250, 250, 0.8);
  line-height: 1.45;
}

.footer {
  border-top: 4px solid var(--lime);
  padding: 50px 0;
}

.footer-grid {
  align-items: start;
}

.footer a {
  display: block;
  margin-bottom: 10px;
}

.legal {
  margin: 0;
  color: rgba(250, 250, 250, 0.7);
  font-size: 13px;
  line-height: 1.35;
}

@media (max-width: 900px) {
  .topbar {
    height: 62px;
    padding: 0 20px;
  }

  .nav {
    display: none;
  }

  .topbar .button {
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .hero {
    min-height: 100vh;
    padding-top: 95px;
  }

  .stats,
  .about-grid,
  .learning-grid,
  .promise-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .stats {
    gap: 42px;
  }

  .about,
  .learning,
  .lesson-list,
  .promises,
  .lessons,
  .reviews,
  .faq {
    padding: 64px 0;
  }

  .portrait-wrap {
    min-height: 420px;
  }

  .portrait-wrap::before {
    inset: 18% 12% 10% 12%;
    border-width: 8px;
  }

  .portrait-wrap img {
    width: min(360px, 92vw);
    margin: 0 auto;
  }

  .asterisk {
    font-size: 230px;
    right: 14%;
  }

  .learning-grid {
    gap: 36px;
  }

  .calculator {
    padding: 20px;
  }

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

  .video-placeholder {
    aspect-ratio: 1.2;
    font-size: 26px;
  }

  .lesson-list ol {
    columns: 1;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 16px;
  }

  .logo-large {
    font-size: 27px;
  }

  h1 {
    margin-top: 80px;
    font-size: 38px;
  }

  .hero-subtitle {
    font-size: 22px;
  }

  .program-link {
    padding: 12px;
    font-size: 13px;
  }

  .lesson-list details {
    padding: 16px;
  }

  .lesson-list summary {
    font-size: 22px;
  }

  .lesson-list li {
    font-size: 14px;
  }

  .scroll-cue {
    margin-top: 80px;
    font-size: 14px;
  }

  .formula h2,
  .about h2,
  .learning h2,
  .promises h2,
  .lessons h2,
  .reviews h2,
  .faq h2 {
    font-size: 31px;
  }

  .lead {
    font-size: 24px;
  }

  .about-copy p:not(.label),
  .learning p {
    font-size: 17px;
  }

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