:root {
  --ink: #f3f1eb;
  --muted: #9b9993;
  --dim: #696762;
  --paper: #050505;
  --panel: #0b0b0b;
  --line: #242424;
  --signal: #ff3b18;
  --scroll-progress: 1;
  --max-width: 1280px;
  --gutter: clamp(1.25rem, 4vw, 4rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: 100;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: var(--signal);
  content: "";
  transform: scaleX(var(--scroll-progress));
  transform-origin: left center;
  will-change: transform;
}

::selection {
  background: var(--signal);
  color: #050505;
}

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

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

a:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  transform: translateY(-200%);
  background: var(--ink);
  color: var(--paper);
  font-weight: 700;
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  width: min(100%, calc(var(--max-width) + 2 * var(--gutter)));
  margin: 0 auto;
  padding: 1.5rem var(--gutter);
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.13em;
}

.brand__mark {
  width: 2.15rem;
  height: 2.15rem;
  object-fit: cover;
  transition: transform 180ms ease;
}

.brand:hover .brand__mark {
  transform: rotate(12deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.4rem);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-nav a {
  transition: color 160ms ease;
}

.site-nav a:hover {
  color: var(--ink);
}

.site-nav__join {
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  color: var(--ink);
}

.site-nav__join:hover {
  border-color: var(--signal);
}

.site-nav__social {
  position: relative;
}

.site-nav__social::after {
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.site-nav__social:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero {
  position: relative;
  display: grid;
  min-height: max(46rem, 100svh);
  overflow: hidden;
  padding: 8.5rem var(--gutter) 0;
  background: #000;
  isolation: isolate;
}

.hero__content,
.hero__rail {
  width: min(100%, var(--max-width));
  margin-right: auto;
  margin-left: auto;
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero__mark {
  position: absolute;
  z-index: -1;
  top: 50%;
  right: max(-18rem, -13vw);
  width: min(54vw, 48rem);
  transform: translate3d(var(--mark-x, 0), calc(-45% + var(--mark-y, 0)), 0)
    rotate(var(--mark-rotate, 0deg));
  opacity: 0.2;
  pointer-events: none;
  transition: transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.eyebrow,
.section__label {
  font-size: 0.7rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  margin: 0 0 clamp(2rem, 5vh, 4rem);
  align-items: center;
  gap: 0.7rem;
  color: var(--muted);
}

.eyebrow span {
  width: 0.48rem;
  height: 0.48rem;
  background: var(--signal);
}

.hero h1 {
  margin: 0;
  font-size: clamp(4.2rem, 12.35vw, 11.5rem);
  font-weight: 800;
  letter-spacing: -0.075em;
  line-height: 0.79;
  white-space: nowrap;
}

.hero h1 sup {
  position: relative;
  display: inline-block;
  top: -0.52em;
  margin-left: 0.02em;
  color: var(--signal);
  font-size: 0.36em;
  letter-spacing: 0;
  transform-origin: center;
}

.hero__lower {
  display: grid;
  margin-top: clamp(3rem, 7vh, 5.5rem);
  grid-template-columns: minmax(0, 1.1fr) minmax(20rem, 0.9fr);
  gap: clamp(2rem, 8vw, 8rem);
  align-items: end;
}

.hero__lede {
  max-width: 43rem;
  margin: 0;
  color: #c6c3bc;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  letter-spacing: -0.025em;
  line-height: 1.34;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
}

.button {
  display: inline-flex;
  min-height: 3.6rem;
  padding: 0.9rem 1.15rem;
  align-items: center;
  justify-content: center;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition:
    background-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.button--primary {
  min-width: 12.5rem;
  background: var(--signal);
  color: #050505;
}

.button--primary:hover {
  transform: translateY(-3px);
  background: var(--ink);
}

.button__arrow {
  margin-left: auto;
  padding-left: 1.25rem;
  font-size: 1rem;
}

.button--quiet {
  padding-right: 0;
  padding-left: 0;
  border-bottom: 1px solid var(--dim);
  color: var(--muted);
}

.button--quiet:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.hero__rail {
  position: relative;
  z-index: 2;
  display: grid;
  margin-top: auto;
  border-top: 1px solid var(--line);
  grid-template-columns: repeat(5, 1fr);
}

.hero__rail span {
  padding: 1.15rem 0;
  color: var(--dim);
  font-size: 0.67rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section,
.closing,
.site-footer {
  width: min(100%, calc(var(--max-width) + 2 * var(--gutter)));
  margin: 0 auto;
  padding-right: var(--gutter);
  padding-left: var(--gutter);
}

.section {
  display: grid;
  padding-top: clamp(6rem, 12vw, 11rem);
  padding-bottom: clamp(6rem, 12vw, 11rem);
  border-top: 1px solid var(--line);
  grid-template-columns: minmax(9rem, 0.3fr) minmax(0, 1fr);
  gap: clamp(2rem, 8vw, 8rem);
}

.section__label {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  color: var(--muted);
}

.section__label span {
  color: var(--signal);
}

.section__label p,
.section__label h2 {
  margin: 0;
  font: inherit;
}

.about__body h2 {
  max-width: 61rem;
  margin: 0;
  font-size: clamp(2.7rem, 6vw, 6.8rem);
  font-weight: 750;
  letter-spacing: -0.065em;
  line-height: 0.94;
}

.about__copy {
  display: grid;
  max-width: 57rem;
  margin-top: clamp(3rem, 7vw, 6rem);
  margin-left: auto;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
}

.about__copy p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.35vw, 1.2rem);
  line-height: 1.65;
}

.topics {
  align-items: start;
}

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

.topic-list li {
  position: relative;
  display: grid;
  min-height: 7.8rem;
  padding: 1.3rem 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 3rem minmax(10rem, 0.55fr) minmax(16rem, 1fr) 2rem;
  gap: 1rem;
  align-items: center;
  transition: padding 180ms ease;
}

.topic-list li::before {
  position: absolute;
  top: 1.3rem;
  bottom: 1.3rem;
  left: 0;
  width: 2px;
  background: var(--signal);
  content: "";
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.topic-list li:hover {
  padding-right: 0.8rem;
  padding-left: 0.8rem;
}

.topic-list li:hover::before {
  transform: scaleY(1);
  transform-origin: top;
}

.topic-list__index {
  color: var(--dim);
  font-size: 0.7rem;
  font-weight: 750;
}

.topic-list h3 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  transition: transform 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

.topic-list li:hover h3 {
  transform: translateX(0.3rem);
}

.topic-list p {
  max-width: 33rem;
  margin: 0;
  color: var(--muted);
}

.topic-list__mark {
  color: var(--signal);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  opacity: 0;
  transform: rotate(-15deg);
  transition:
    opacity 150ms ease,
    transform 300ms cubic-bezier(0.22, 1, 0.36, 1);
}

.topic-list li:hover .topic-list__mark {
  opacity: 1;
  transform: rotate(10deg);
}

.principles__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.principles__list li {
  display: grid;
  padding: 1.6rem 0;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 4rem 1fr;
  gap: 1rem;
}

.principles__list li:first-child {
  border-top: 1px solid var(--line);
}

.principles__list span {
  padding-top: 0.25rem;
  color: var(--signal);
  font-size: 0.7rem;
  font-weight: 750;
}

.principles__list p {
  margin: 0;
  font-size: clamp(1.5rem, 3.3vw, 3.4rem);
  font-weight: 650;
  letter-spacing: -0.045em;
  line-height: 1.1;
}

.closing {
  position: relative;
  min-height: 38rem;
  overflow: hidden;
  padding-top: clamp(6rem, 12vw, 10rem);
  padding-bottom: clamp(6rem, 12vw, 10rem);
  border-top: 1px solid var(--line);
  text-align: center;
}

.closing img {
  position: absolute;
  z-index: -1;
  top: 50%;
  left: 50%;
  width: min(35rem, 70vw);
  transform: translate(-50%, -50%);
  opacity: 0.16;
}

.closing p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.closing h2 {
  margin: 0;
  font-size: clamp(5rem, 15vw, 13rem);
  font-weight: 800;
  letter-spacing: -0.08em;
  line-height: 0.82;
}

.closing > a {
  display: inline-flex;
  margin-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: 0.35rem;
  border-bottom: 2px solid var(--signal);
  align-items: center;
  gap: 1rem;
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 750;
}

.site-footer {
  display: grid;
  padding-top: 2.2rem;
  padding-bottom: 2.2rem;
  border-top: 1px solid var(--line);
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  color: var(--dim);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand--footer {
  color: var(--ink);
}

.site-footer__links {
  display: flex;
  justify-self: end;
  gap: 1.5rem;
}

.site-footer__links a {
  transition: color 160ms ease;
}

.site-footer__links a:hover {
  color: var(--ink);
}

.motion-enabled .eyebrow,
.motion-enabled .hero h1,
.motion-enabled .hero__lower,
.motion-enabled .hero__rail {
  animation: hero-reveal 850ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.motion-enabled .hero h1 {
  animation-name: headline-reveal;
  animation-delay: 100ms;
}

.motion-enabled .hero__lower {
  animation-delay: 220ms;
}

.motion-enabled .hero__rail {
  animation-delay: 380ms;
}

.motion-enabled .hero h1 sup {
  animation: signal-tick 5.5s cubic-bezier(0.22, 1, 0.36, 1) 1.2s infinite;
}

.motion-enabled [data-reveal] {
  opacity: 0;
  transform: translateY(2.25rem);
  transition:
    opacity 650ms ease,
    transform 800ms cubic-bezier(0.16, 1, 0.3, 1);
}

.motion-enabled [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.motion-enabled .section > [data-reveal]:nth-child(2) {
  transition-delay: 90ms;
}

@keyframes headline-reveal {
  from {
    clip-path: inset(0 0 100% 0);
    opacity: 0;
    transform: translateY(0.2em);
  }

  to {
    clip-path: inset(0 0 0 0);
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes hero-reveal {
  from {
    opacity: 0;
    transform: translateY(1.2rem);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes signal-tick {
  0%,
  82%,
  100% {
    transform: rotate(0deg) scale(1);
  }

  87% {
    transform: rotate(-13deg) scale(1.12);
  }

  92% {
    transform: rotate(7deg) scale(0.98);
  }
}

@media (max-width: 900px) {
  .site-nav > a:not(.site-nav__join) {
    display: none;
  }

  .hero {
    min-height: 50rem;
  }

  .hero__mark {
    top: 46%;
    right: -17rem;
    width: 41rem;
  }

  .hero h1 {
    white-space: normal;
  }

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

  .hero__actions {
    justify-content: flex-start;
  }

  .hero__rail span:nth-child(even) {
    display: none;
  }

  .hero__rail {
    grid-template-columns: repeat(3, 1fr);
  }

  .section {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .topic-list li {
    grid-template-columns: 2.5rem minmax(8rem, 0.6fr) 1fr;
  }

  .topic-list__mark {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
  }

}

@media (max-width: 580px) {
  .site-header {
    padding-top: 1.15rem;
  }

  .brand > span {
    display: none;
  }

  .brand__mark {
    width: 2rem;
    height: 2rem;
  }

  .site-nav__join {
    padding: 0.62rem 0.7rem;
  }

  .hero {
    min-height: 47rem;
    padding-top: 7rem;
  }

  .hero__mark {
    top: 39%;
    right: -14rem;
    width: 31rem;
  }

  .eyebrow {
    margin-bottom: 2.25rem;
  }

  .hero h1 {
    max-width: 8ch;
    font-size: clamp(4rem, 21vw, 6.2rem);
    line-height: 0.83;
  }

  .hero__lower {
    margin-top: 2.6rem;
    gap: 2rem;
  }

  .hero__lede {
    font-size: 1.12rem;
  }

  .hero__actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button--primary {
    width: 100%;
  }

  .button--quiet {
    width: fit-content;
  }

  .hero__rail {
    display: flex;
    justify-content: space-between;
  }

  .about__copy {
    margin-top: 2.5rem;
    grid-template-columns: 1fr;
  }

  .topic-list li {
    min-height: auto;
    padding: 1.35rem 0;
    grid-template-columns: 2rem 1fr;
  }

  .topic-list p {
    grid-column: 2;
    font-size: 0.9rem;
  }

  .principles__list li {
    grid-template-columns: 2.5rem 1fr;
  }

  .closing {
    min-height: 30rem;
  }

  .site-footer {
    grid-template-columns: auto 1fr;
  }

  .site-footer__links {
    flex-direction: column;
    gap: 0.45rem;
    text-align: right;
  }

  .brand--footer > span {
    display: inline;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .motion-enabled [data-reveal] {
    opacity: 1;
    transform: none;
  }

  .hero__mark {
    transform: translateY(-45%);
  }
}