:root {
  color-scheme: dark;
  --bg: oklch(0.145 0.012 258);
  --bg-raised: oklch(0.185 0.014 258);
  --surface: oklch(0.205 0.016 258 / 0.86);
  --surface-strong: oklch(0.235 0.018 258);
  --text: oklch(0.955 0.006 95);
  --text-muted: oklch(0.755 0.014 258);
  --accent: oklch(0.79 0.165 78);
  --accent-strong: oklch(0.7 0.175 66);
  --accent-ink: oklch(0.17 0.025 66);
  --line: oklch(0.36 0.018 258 / 0.7);
  --focus: oklch(0.84 0.16 92);
  --success: oklch(0.76 0.13 155);
  --radius-sm: 0.75rem;
  --radius-md: 1.25rem;
  --radius-lg: 2rem;
  --shadow: 0 1.5rem 4rem oklch(0.05 0.01 258 / 0.34);
  --container: 73rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: auto;
}

body {
  margin: 0;
  min-width: 20rem;
  background:
    radial-gradient(circle at 8% 0%, oklch(0.31 0.07 66 / 0.28), transparent 28rem),
    radial-gradient(circle at 92% 18%, oklch(0.27 0.045 250 / 0.24), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration-thickness: from-font;
  text-underline-offset: 0.22em;
  text-decoration-skip-ink: auto;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
  border-radius: 0.25rem;
}

p,
h1,
h2,
h3,
dl,
dd {
  margin-block-start: 0;
}

h1,
h2,
h3 {
  line-height: 1.1;
  text-wrap: balance;
}

h1 {
  max-width: 12ch;
  margin-block-end: 1.5rem;
  font-size: clamp(3rem, 8vw, 6.7rem);
  letter-spacing: -0.065em;
}

h2 {
  margin-block-end: 1rem;
  font-size: clamp(2rem, 5vw, 3.65rem);
  letter-spacing: -0.045em;
}

h3 {
  margin-block-end: 0.75rem;
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  letter-spacing: -0.025em;
}

::selection {
  background: var(--accent);
  color: var(--accent-ink);
}

.container {
  width: min(calc(100% - 2.5rem), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  inset-block-start: 0.75rem;
  inset-inline-start: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--bg);
  transform: translateY(-160%);
}

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

.site-header {
  position: relative;
  z-index: 10;
  border-block-end: 1px solid var(--line);
  background: oklch(0.145 0.012 258 / 0.82);
  backdrop-filter: blur(1rem);
}

.header-inner {
  display: flex;
  min-height: 5.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  gap: 0.7rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.5rem;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 0.8rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 0.95rem;
  font-weight: 850;
  letter-spacing: -0.06em;
  box-shadow: inset 0 0 0 1px oklch(1 0 0 / 0.2);
}

.nav-list {
  display: flex;
  margin: 0;
  padding: 0;
  align-items: center;
  gap: clamp(0.5rem, 2vw, 1.5rem);
  list-style: none;
}

.nav-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  padding-inline: 0.4rem;
  color: var(--text-muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

.hero {
  position: relative;
  overflow: clip;
  padding-block: clamp(5rem, 12vw, 10rem);
}

.hero::after {
  position: absolute;
  z-index: -1;
  inset-block-start: 8%;
  inset-inline-end: -10rem;
  width: 31rem;
  aspect-ratio: 1;
  border: 1px solid oklch(0.79 0.165 78 / 0.22);
  border-radius: 50%;
  box-shadow:
    0 0 0 4rem oklch(0.79 0.165 78 / 0.035),
    0 0 0 9rem oklch(0.79 0.165 78 / 0.025);
  content: "";
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(18rem, 0.78fr);
  align-items: end;
  gap: clamp(3rem, 8vw, 7rem);
}

.hero-copy {
  max-width: 49rem;
}

.status,
.eyebrow,
.track-label,
.module-number {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  min-height: 2rem;
  margin-block-end: 1.5rem;
  align-items: center;
  gap: 0.55rem;
  letter-spacing: 0.1em;
}

.status span {
  width: 0.65rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 0.3rem oklch(0.76 0.13 155 / 0.13);
}

.hero-lead {
  max-width: 64ch;
  margin-block-end: 2rem;
  color: var(--text-muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 750;
  text-decoration: none;
  box-shadow: inset 0 0 0 1px transparent;
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow:
    inset 0 0 0 1px oklch(1 0 0 / 0.22),
    0 0.7rem 2rem oklch(0.7 0.175 66 / 0.18);
}

.button-secondary {
  background: var(--surface);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
}

.launch-card {
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, oklch(0.25 0.024 258 / 0.94), oklch(0.18 0.014 258 / 0.9));
  box-shadow:
    inset 0 0 0 1px var(--line),
    var(--shadow);
}

.launch-card h2 {
  font-size: clamp(1.7rem, 3vw, 2.25rem);
  letter-spacing: -0.035em;
}

.launch-card > p:not(.eyebrow) {
  color: var(--text-muted);
  text-wrap: pretty;
}

.facts {
  display: grid;
  margin-block-end: 0;
  padding-block-start: 1.25rem;
  border-block-start: 1px solid var(--line);
  gap: 1rem;
}

.facts div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.facts dt {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.facts dd {
  font-weight: 750;
}

.section {
  padding-block: clamp(5rem, 10vw, 8.5rem);
  scroll-margin-block-start: 2rem;
}

.section-muted {
  border-block: 1px solid var(--line);
  background: oklch(0.175 0.013 258 / 0.68);
}

.section-heading {
  max-width: 46rem;
  margin-block-end: clamp(2.5rem, 6vw, 4.5rem);
}

.section-heading-wide {
  max-width: 58rem;
}

.section-heading > p:not(.eyebrow) {
  max-width: 65ch;
  margin-block-end: 0;
  color: var(--text-muted);
  font-size: 1.06rem;
  text-wrap: pretty;
}

.audience-grid,
.track-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.audience-card,
.track-card {
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.audience-card {
  min-height: 28rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
}

.card-index {
  margin-block-end: clamp(4rem, 10vw, 7rem);
  color: var(--accent);
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
}

.audience-card > p:not(.card-index) {
  max-width: 55ch;
  color: var(--text-muted);
}

.check-list {
  display: grid;
  margin-block: 1.5rem 0;
  padding: 0;
  gap: 0.75rem;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-inline-start: 1.65rem;
}

.check-list li::before {
  position: absolute;
  inset-block-start: 0.58em;
  inset-inline-start: 0;
  width: 0.55rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.foundation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--line);
  box-shadow: 0 0 0 1px var(--line);
}

.foundation-grid article {
  min-height: 18rem;
  padding: clamp(1.35rem, 3vw, 2rem);
  background: var(--bg-raised);
}

.foundation-grid h3 {
  font-size: 1.3rem;
}

.foundation-grid article > p:last-child {
  color: var(--text-muted);
  text-wrap: pretty;
}

.module-number {
  margin-block-end: 4rem;
  font-variant-numeric: tabular-nums;
}

.track-card {
  overflow: hidden;
}

.track-card > header {
  min-height: 14rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border-block-end: 1px solid var(--line);
  background: linear-gradient(145deg, oklch(0.25 0.024 258), var(--surface));
}

.track-card > header p:last-child {
  max-width: 48ch;
  margin-block-end: 0;
  color: var(--text-muted);
}

.module-list,
.process-list,
.roadmap-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.module-list > li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.35rem clamp(1.5rem, 4vw, 2.5rem);
  border-block-end: 1px solid var(--line);
}

.module-list > li:last-child {
  border-block-end: 0;
}

.module-list > li > span,
.process-list > li > span {
  color: var(--accent);
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.module-list strong {
  display: block;
  margin-block-end: 0.25rem;
  line-height: 1.35;
}

.module-list p {
  margin-block-end: 0;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.5;
  text-wrap: pretty;
}

.program-link {
  margin-block: 2rem 0;
  text-align: center;
}

.program-link a,
.resource-card a {
  color: var(--accent);
  font-weight: 750;
}

.format-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(22rem, 1.2fr);
  align-items: start;
  gap: clamp(3rem, 10vw, 8rem);
}

.sticky-heading {
  margin-block-end: 0;
}

.process-list {
  display: grid;
  gap: 0.75rem;
}

.process-list > li {
  display: grid;
  grid-template-columns: 2.25rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
}

.process-list h3 {
  margin-block-end: 0.35rem;
  font-size: 1.2rem;
}

.process-list p {
  margin-block-end: 0;
  color: var(--text-muted);
}

.roadmap-list {
  display: grid;
  border-block-start: 1px solid var(--line);
}

.roadmap-list li {
  display: grid;
  grid-template-columns: minmax(9rem, 0.28fr) minmax(0, 1fr);
  gap: 2rem;
  padding-block: 1.75rem;
  border-block-end: 1px solid var(--line);
}

.roadmap-list span {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.roadmap-list p {
  max-width: 62ch;
  margin-block-end: 0;
  font-size: 1.08rem;
}

.roadmap-list .is-current span {
  color: var(--accent);
}

.resources {
  padding-block-start: 0;
}

.resource-card {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
  gap: clamp(2rem, 7vw, 6rem);
  padding: clamp(1.75rem, 5vw, 3.5rem);
  border-radius: var(--radius-lg);
  background: var(--surface-strong);
  box-shadow:
    inset 0 0 0 1px var(--line),
    var(--shadow);
}

.resource-card h2 {
  max-width: 18ch;
  margin-block-end: 0;
  font-size: clamp(1.75rem, 4vw, 2.8rem);
}

.resource-card ul {
  display: grid;
  margin: 0;
  padding: 0;
  align-content: center;
  gap: 1rem;
  list-style: none;
}

.site-footer {
  padding-block: 3.5rem;
  border-block-start: 1px solid var(--line);
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2rem;
}

.site-footer .brand {
  margin-block-end: 1rem;
  color: var(--text);
}

.site-footer p {
  max-width: 52ch;
  margin-block-end: 0;
  font-size: 0.9rem;
}

.disclaimer {
  justify-self: end;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }

  .button,
  .nav-list a,
  .program-link a,
  .resource-card a {
    transition-property: color, background-color, box-shadow, transform;
    transition-duration: 150ms;
    transition-timing-function: ease-out;
  }

  .button:active {
    transform: scale(0.96);
  }
}

@media (hover: hover) {
  .nav-list a:hover {
    color: var(--text);
  }

  .button-primary:hover {
    background: oklch(0.84 0.15 85);
    box-shadow:
      inset 0 0 0 1px oklch(1 0 0 / 0.24),
      0 1rem 2.5rem oklch(0.7 0.175 66 / 0.26);
  }

  .button-secondary:hover {
    background: var(--surface-strong);
  }

  .program-link a:hover,
  .resource-card a:hover {
    color: oklch(0.87 0.14 88);
  }
}

@media (min-width: 60rem) {
  .sticky-heading {
    position: sticky;
    inset-block-start: 2rem;
  }
}

@media (max-width: 59.99rem) {
  .hero-grid,
  .format-grid,
  .resource-card {
    grid-template-columns: 1fr;
  }

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

  .foundation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 43.75rem) {
  .container {
    width: min(calc(100% - 1.5rem), var(--container));
  }

  .header-inner {
    min-height: auto;
    padding-block: 0.8rem;
    align-items: flex-start;
  }

  .nav-list {
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 0 0.5rem;
  }

  .nav-list li:nth-child(1),
  .nav-list li:nth-child(3) {
    display: none;
  }

  .hero {
    padding-block-start: 4rem;
  }

  .hero::after {
    inset-inline-end: -22rem;
  }

  .audience-grid,
  .track-grid,
  .foundation-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .audience-card,
  .foundation-grid article {
    min-height: auto;
  }

  .card-index,
  .module-number {
    margin-block-end: 2.5rem;
  }

  .track-card > header {
    min-height: auto;
  }

  .roadmap-list li {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .disclaimer {
    justify-self: start;
  }
}

@media (forced-colors: active) {
  .brand-mark,
  .status span,
  .check-list li::before {
    forced-color-adjust: none;
  }
}