:root {
  --ink: #11100f;
  --paper: #f7f5f0;
  --white: #ffffff;
  --orange: #ff5a1f;
  --orange-dark: #e8450b;
  --acid: #d7ff36;
  --line: rgba(17, 16, 15, 0.18);
  --muted: #6f6b65;
  --max: 1420px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--white);
  transform: translateY(-150%);
}

.skip-link:focus { transform: none; }

.site-header {
  position: sticky;
  z-index: 30;
  top: 0;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 2rem;
  min-height: 4.25rem;
  padding: 0 1.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 245, 240, 0.94);
  backdrop-filter: blur(18px);
}

.brand,
.nav-link {
  text-decoration: none;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.brand {
  width: max-content;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.brand-dot { color: var(--orange); }

.nav-link {
  padding: 0.7rem 0;
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible { border-color: var(--orange); }

.hero-media {
  display: grid;
  min-height: calc(100svh - 4.25rem);
  place-items: center;
  overflow: hidden;
  background: #dfd0bd;
}

.hero-media video {
  width: auto;
  height: calc(100svh - 4.25rem);
  max-width: 100%;
  object-fit: contain;
  background: #dfd0bd;
}

.section {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: clamp(5rem, 10vw, 10rem) clamp(1.25rem, 4vw, 4.5rem);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 2rem;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.kicker::before {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: var(--orange);
  content: "";
}

.display {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.5rem, 9vw, 9.2rem);
  font-weight: 900;
  line-height: 0.88;
  letter-spacing: -0.075em;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(18rem, 0.55fr);
  gap: clamp(3rem, 8vw, 9rem);
  align-items: end;
}

.lead {
  max-width: 34rem;
  margin: 0 0 2rem;
  font-size: clamp(1.25rem, 2.2vw, 1.85rem);
  line-height: 1.28;
  letter-spacing: -0.025em;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.button {
  display: inline-flex;
  min-height: 3.5rem;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.25rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  background: var(--orange);
  border-color: var(--orange);
}

.button--light {
  background: transparent;
  color: var(--ink);
}

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

.button[aria-disabled="true"] {
  cursor: not-allowed;
}

.routes {
  width: 100%;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  width: min(100%, var(--max));
  margin: 0 auto;
}

.route {
  min-height: 30rem;
  padding: clamp(2rem, 4vw, 4.5rem);
  border-right: 1px solid var(--line);
}

.route:last-child { border-right: 0; }

.route-number {
  margin: 0 0 6rem;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 800;
}

.route h3 {
  margin: 0 0 1.5rem;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.route p {
  max-width: 23rem;
  margin: 0;
  font-size: 1.05rem;
}

.statement {
  padding: clamp(4.5rem, 9vw, 9rem) 1.25rem;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
  text-align: center;
}

.statement p {
  max-width: 1050px;
  margin: 0 auto;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.5rem, 6vw, 6.5rem);
  font-style: italic;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.statement em { color: var(--orange); }

.feature-band {
  width: 100%;
  background: var(--orange);
}

.feature-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.feature-copy,
.feature-side {
  padding: clamp(4rem, 8vw, 8rem) clamp(1.25rem, 4vw, 4.5rem);
}

.feature-copy { border-right: 1px solid rgba(17, 16, 15, 0.5); }

.feature-copy h2,
.course-preview h2 {
  margin: 0 0 2rem;
  font-size: clamp(3.2rem, 7vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.07em;
}

.feature-copy p {
  max-width: 35rem;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
}

.feature-side {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 4rem;
}

.plain-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(17, 16, 15, 0.5);
}

.plain-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(17, 16, 15, 0.5);
  font-weight: 700;
}

.plain-list li::after { content: "↗"; }

.note {
  max-width: 26rem;
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.45;
}

.course-preview {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: end;
}

.course-preview h2 { max-width: 10ch; }

.course-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.course-meta .eyebrow {
  display: inline-block;
  margin-bottom: 2rem;
  padding: 0.45rem 0.65rem;
  background: var(--acid);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.course-meta p {
  max-width: 29rem;
  margin: 0 0 2rem;
  font-size: 1.2rem;
}

.cases {
  background: var(--white);
}

.cases .section { padding-bottom: clamp(5rem, 9vw, 8rem); }

.section-heading {
  max-width: 18ch;
  margin: 0 0 clamp(3rem, 7vw, 7rem);
  font-size: clamp(2.8rem, 6vw, 6rem);
  line-height: 0.93;
  letter-spacing: -0.065em;
}

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

.case-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: clamp(1rem, 3vw, 3rem);
  align-items: center;
  min-height: 7rem;
  border-bottom: 1px solid var(--line);
}

.case-in,
.case-out {
  font-size: clamp(1.1rem, 2.3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

.case-out { text-align: right; }

.case-arrow {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border-radius: 50%;
  background: var(--orange);
  color: var(--white);
}

.mechanic {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 4rem;
  border: 1px solid var(--ink);
}

.mechanic-step {
  min-height: 11rem;
  padding: 1.25rem;
  border-right: 1px solid var(--ink);
}

.mechanic-step:last-child { border-right: 0; }

.mechanic-step span {
  display: block;
  margin-bottom: 3rem;
  color: var(--orange);
  font-weight: 800;
}

.mechanic-step strong { font-size: 1.08rem; }

.about {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(3rem, 9vw, 10rem);
}

.about-stamp {
  align-self: start;
  aspect-ratio: 1;
  display: grid;
  max-width: 32rem;
  place-items: center;
  border-radius: 50%;
  background: var(--acid);
  transform: rotate(-6deg);
  text-align: center;
  text-transform: uppercase;
  font-size: clamp(1.5rem, 3.4vw, 3.8rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.05em;
}

.about-copy h2 {
  max-width: 11ch;
  margin: 0 0 2.5rem;
  font-size: clamp(3.2rem, 7vw, 7.3rem);
  line-height: 0.88;
  letter-spacing: -0.075em;
}

.about-copy p {
  max-width: 35rem;
  font-size: clamp(1.15rem, 2vw, 1.55rem);
}

.final-choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
}

.choice {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: clamp(2rem, 5vw, 5rem);
  background: var(--ink);
  color: var(--white);
  text-decoration: none;
}

.choice + .choice {
  background: var(--orange);
  color: var(--ink);
}

.choice small {
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.choice strong {
  max-width: 8ch;
  font-size: clamp(3.2rem, 7vw, 8rem);
  line-height: 0.85;
  letter-spacing: -0.07em;
}

.choice-arrow {
  align-self: flex-end;
  font-size: clamp(3rem, 7vw, 7rem);
  transition: transform 180ms ease;
}

.choice:hover .choice-arrow,
.choice:focus-visible .choice-arrow { transform: translate(0.25rem, -0.25rem); }

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.5rem;
  background: var(--ink);
  color: var(--white);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-links { display: flex; gap: 1rem; }

.missing-link-note {
  display: none;
  margin: 0.8rem 0 0;
  font-size: 0.82rem;
  font-weight: 700;
}

.missing-link-note.is-visible { display: block; }

/* Product page */
.product-hero {
  display: grid;
  min-height: calc(100svh - 4.25rem);
  grid-template-columns: 1.25fr 0.75fr;
}

.product-title,
.product-aside { padding: clamp(2rem, 6vw, 6rem); }

.product-title {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.product-title h1 {
  max-width: 10ch;
  margin: 3rem 0;
  font-size: clamp(4rem, 9.5vw, 10rem);
  line-height: 0.82;
  letter-spacing: -0.085em;
}

.product-aside {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--orange);
}

.product-aside p {
  max-width: 28rem;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.product-aside .micro { font-size: 0.85rem; font-weight: 700; }

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.step {
  min-height: 27rem;
  padding: 2rem;
  border-right: 1px solid var(--line);
}

.step:last-child { border-right: 0; }

.step b {
  display: block;
  margin-bottom: 8rem;
  color: var(--orange);
}

.step h3 {
  margin: 0 0 1rem;
  font-size: clamp(1.7rem, 3vw, 3rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

.step p { margin: 0; }

.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--ink);
}

.price-card {
  display: flex;
  min-height: 33rem;
  flex-direction: column;
  padding: clamp(2rem, 4vw, 4rem);
}

.price-card + .price-card {
  border-left: 1px solid var(--ink);
  background: var(--orange);
}

.price-label {
  width: max-content;
  padding: 0.4rem 0.6rem;
  background: var(--acid);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.price-card h3 {
  max-width: 12ch;
  margin: 3rem 0 auto;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.price {
  margin: 2rem 0 1rem;
  font-size: clamp(4rem, 7vw, 7rem);
  font-weight: 900;
  line-height: 0.9;
  letter-spacing: -0.07em;
}

.bonus-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--ink);
}

.bonus {
  min-height: 8rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(1.2rem, 2.2vw, 2rem);
  font-weight: 800;
}

.bonus:nth-child(odd) { padding-right: 2rem; border-right: 1px solid var(--line); }
.bonus:nth-child(even) { padding-left: 2rem; }

.faq details { border-top: 1px solid var(--ink); }
.faq details:last-child { border-bottom: 1px solid var(--ink); }
.faq summary {
  padding: 1.5rem 3rem 1.5rem 0;
  cursor: pointer;
  font-size: clamp(1.15rem, 2vw, 1.6rem);
  font-weight: 800;
}
.faq details p { max-width: 46rem; margin: 0 0 1.5rem; }

.legal {
  max-width: 850px;
  min-height: 70vh;
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 8rem) 1.25rem;
}
.legal h1 { font-size: clamp(2.7rem, 7vw, 6rem); line-height: 0.92; letter-spacing: -0.06em; }
.legal h2 { margin-top: 3rem; }
.legal p, .legal li { font-size: 1.05rem; }

@media (max-width: 900px) {
  .intro-grid,
  .feature-grid,
  .course-preview,
  .about,
  .product-hero { grid-template-columns: 1fr; }

  .route-grid { grid-template-columns: 1fr; }
  .route { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .route:last-child { border-bottom: 0; }
  .route-number { margin-bottom: 4rem; }
  .feature-copy { border-right: 0; border-bottom: 1px solid rgba(17, 16, 15, 0.5); }
  .steps { grid-template-columns: 1fr 1fr; }
  .step:nth-child(2) { border-right: 0; }
  .step:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .site-header {
    grid-template-columns: 1fr auto;
    gap: 0.8rem;
    min-height: 3.75rem;
    padding: 0 1rem;
  }

  .site-header .nav-link:nth-of-type(1) { display: none; }
  .nav-link { font-size: 0.7rem; }

  .hero-media {
    min-height: 0;
    background: #dfd0bd;
  }

  .hero-media video {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
  }

  .section { padding: 5rem 1.15rem; }
  .display { font-size: clamp(3.3rem, 18vw, 5.2rem); }
  .intro-grid { gap: 3rem; }
  .lead { font-size: 1.2rem; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
  .route { padding: 2.5rem 1.15rem; }
  .route-number { margin-bottom: 3rem; }
  .statement p { font-size: clamp(2.4rem, 12vw, 4.1rem); }
  .feature-copy, .feature-side { padding: 4rem 1.15rem; }
  .course-preview { gap: 1rem; }

  .case-row {
    grid-template-columns: 1fr auto;
    grid-template-areas: "in arrow" "out out";
    gap: 0.8rem;
    padding: 1.3rem 0;
  }
  .case-in { grid-area: in; }
  .case-arrow { grid-area: arrow; }
  .case-out { grid-area: out; text-align: left; color: var(--orange-dark); }

  .mechanic { grid-template-columns: 1fr 1fr; }
  .mechanic-step:nth-child(2) { border-right: 0; }
  .mechanic-step:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .mechanic-step { min-height: 9rem; }
  .mechanic-step span { margin-bottom: 2rem; }

  .about-stamp { max-width: 18rem; }
  .final-choice { grid-template-columns: 1fr; min-height: auto; }
  .choice { min-height: 24rem; }
  .site-footer { flex-direction: column; }

  .product-hero { min-height: 0; }
  .product-title, .product-aside { padding: 3.5rem 1.15rem; }
  .product-title h1 { margin: 4rem 0; font-size: clamp(3.8rem, 19vw, 6rem); }
  .steps { grid-template-columns: 1fr; }
  .step { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .step b { margin-bottom: 4rem; }
  .price-grid { grid-template-columns: 1fr; }
  .price-card { min-height: 29rem; }
  .price-card + .price-card { border-left: 0; border-top: 1px solid var(--ink); }
  .bonus-list { grid-template-columns: 1fr; }
  .bonus:nth-child(odd), .bonus:nth-child(even) { padding-left: 0; padding-right: 0; border-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}