:root {
  --ink: #181b1b;
  --paper: #eee9dc;
  --paper-deep: #d8d1c0;
  --signal: #e34a24;
  --signal-dark: #a52712;
  --mist: #a9b1aa;
  --line: rgba(24, 27, 27, 0.2);
  --serif: "Iowan Old Style", "Baskerville", "Palatino Linotype", "Book Antiqua", serif;
  --sans: "Avenir Next Condensed", "DIN Condensed", "Franklin Gothic Condensed", sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", "Liberation Mono", monospace;
  --page: min(1440px, calc(100vw - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(227, 74, 36, 0.13), transparent 28rem),
    #c8c4b8;
  font-family: var(--sans);
  font-size: 17px;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  content: "";
  opacity: 0.13;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.28'/%3E%3C/svg%3E");
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 20;
  padding: 10px 14px;
  color: var(--paper);
  background: var(--ink);
  transform: translateY(-160%);
}

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

.page-shell {
  width: var(--page);
  margin: 16px auto;
  overflow: hidden;
  background: var(--paper);
  box-shadow: 0 24px 80px rgba(24, 27, 27, 0.2);
}

.site-header {
  position: relative;
  z-index: 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  padding: 0 clamp(24px, 4vw, 68px);
  border-bottom: 1px solid var(--line);
}

.wordmark {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  font-family: var(--mono);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
}

.wordmark svg {
  width: 36px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
}

.wordmark path {
  stroke: var(--signal);
  stroke-width: 2.2;
}

.site-nav {
  display: flex;
  gap: clamp(20px, 3vw, 46px);
  align-items: center;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:not(.nav-cta):hover,
.site-nav a:not(.nav-cta):focus-visible {
  color: var(--signal-dark);
}

.nav-cta {
  padding: 11px 17px;
  color: var(--paper);
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr);
  min-height: min(780px, calc(100vh - 72px));
  padding: clamp(70px, 9vw, 136px) clamp(24px, 6.3vw, 100px) 94px;
  background:
    linear-gradient(90deg, transparent 49.9%, var(--line) 50%, transparent 50.1%),
    linear-gradient(rgba(24, 27, 27, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 27, 27, 0.045) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
}

.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  max-width: 720px;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 0 0 30px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow span:first-child::before,
.game-copy > .eyebrow::before,
.closing > .eyebrow::before {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin: 0 9px 1px 0;
  background: var(--signal);
  border-radius: 50%;
  content: "";
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 780px;
  margin-bottom: 35px;
  font-size: clamp(4.5rem, 8vw, 8.4rem);
  line-height: 0.82;
}

h1 em {
  color: var(--signal);
  font-weight: 400;
}

.hero-lede {
  max-width: 650px;
  margin-bottom: 38px;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  align-items: center;
}

.button {
  display: inline-flex;
  gap: 36px;
  align-items: center;
  justify-content: space-between;
  padding: 16px 19px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-3px);
}

.button-primary {
  color: #fff8ef;
  background: var(--signal);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--signal-dark);
}

.button-text {
  padding-inline: 2px;
  border-bottom: 1px solid currentColor;
}

.hero-object {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  min-height: 470px;
}

.hero-object::before {
  position: absolute;
  width: min(35vw, 470px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  box-shadow: 0 0 0 55px rgba(24, 27, 27, 0.025), 0 0 0 110px rgba(24, 27, 27, 0.018);
  content: "";
}

.book {
  position: relative;
  width: clamp(225px, 22vw, 330px);
  aspect-ratio: 0.66;
  transform: rotate(7deg) perspective(900px) rotateY(-8deg);
  filter: drop-shadow(30px 35px 28px rgba(24, 27, 27, 0.28));
  animation: book-drift 7s ease-in-out infinite;
}

.book-cover {
  position: absolute;
  inset: 0 8% 0 0;
  display: flex;
  flex-direction: column;
  padding: 11% 12%;
  color: var(--paper);
  background:
    radial-gradient(circle at 70% 25%, rgba(227, 74, 36, 0.22), transparent 30%),
    var(--ink);
  border-left: 6px solid #111313;
}

.book-edge {
  position: absolute;
  inset: 2% 0 1% 9%;
  background: repeating-linear-gradient(90deg, #ddd6c6 0 2px, #bdb5a5 2px 3px);
  transform: translateX(10%);
}

.cover-code,
.cover-note {
  font-family: var(--mono);
  font-size: clamp(0.55rem, 0.8vw, 0.72rem);
  letter-spacing: 0.15em;
}

.cover-title {
  margin: auto 0;
  font-family: var(--serif);
  font-size: clamp(3rem, 5vw, 5.5rem);
  line-height: 0.72;
  letter-spacing: -0.08em;
}

.cover-line {
  position: absolute;
  top: 61%;
  right: -9%;
  width: 62%;
  height: 3px;
  background: var(--signal);
  box-shadow: -32px 0 0 var(--signal), 24px 0 0 var(--signal);
}

.signal {
  position: absolute;
  right: 0;
  bottom: 8%;
  width: min(230px, 52%);
  padding: 13px;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  background: rgba(238, 233, 220, 0.9);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.signal strong,
.signal span {
  display: block;
}

.signal strong {
  margin: 5px 0 9px;
}

.signal i {
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--signal) 0 62%, var(--line) 62%);
}

.hero-index {
  position: absolute;
  right: clamp(24px, 4vw, 68px);
  bottom: 22px;
  left: clamp(24px, 4vw, 68px);
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
}

.editorial-section {
  display: grid;
  grid-template-columns: 90px minmax(240px, 0.75fr) minmax(300px, 1fr);
  gap: clamp(28px, 5vw, 82px);
  padding: clamp(85px, 10vw, 150px) clamp(24px, 6.3vw, 100px);
  border-top: 1px solid var(--line);
}

.section-number {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

.section-heading h2,
.game-copy h2,
.closing h2 {
  font-size: clamp(3rem, 5.6vw, 6.2rem);
  line-height: 0.95;
}

.section-heading h2 {
  margin-bottom: 0;
}

.section-copy {
  align-self: end;
  max-width: 670px;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
  line-height: 1.55;
}

.section-copy p:last-child {
  margin-bottom: 0;
  color: #4b504e;
}

.dropcap::first-letter {
  float: left;
  padding: 8px 9px 0 0;
  color: var(--signal);
  font-size: 4.2rem;
  line-height: 0.65;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.principles article {
  min-height: 320px;
  padding: clamp(30px, 4vw, 62px);
}

.principles article + article {
  border-left: 1px solid var(--line);
}

.principles span,
.status-meta span {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.principles h3 {
  margin: 88px 0 18px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.5vw, 2.5rem);
  font-weight: 400;
}

.principles p {
  max-width: 340px;
  margin-bottom: 0;
  color: #4d514f;
  line-height: 1.5;
}

.game-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.1fr);
  color: var(--paper);
  background: var(--ink);
}

.game-status {
  position: relative;
  display: grid;
  min-height: 720px;
  padding: clamp(30px, 5vw, 72px);
  overflow: hidden;
  place-items: center;
  border-right: 1px solid rgba(238, 233, 220, 0.18);
}

.radar-grid {
  position: relative;
  width: min(38vw, 510px);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(238, 233, 220, 0.34);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(238, 233, 220, 0.2) 50%, transparent 50.2%),
    linear-gradient(transparent 49.8%, rgba(238, 233, 220, 0.2) 50%, transparent 50.2%);
}

.ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(238, 233, 220, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.ring-one {
  width: 76%;
  height: 76%;
}

.ring-two {
  width: 49%;
  height: 49%;
}

.ring-three {
  width: 22%;
  height: 22%;
}

.sweep {
  position: absolute;
  inset: 50% 50% 50% 50%;
  width: 49%;
  height: 49%;
  background: conic-gradient(from 270deg at 0 0, rgba(227, 74, 36, 0.58), transparent 30deg);
  transform-origin: 0 0;
  animation: radar-sweep 5s linear infinite;
}

.target {
  position: absolute;
  top: 27%;
  right: 24%;
  width: 11px;
  height: 11px;
  background: var(--signal);
  border: 2px solid var(--ink);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(227, 74, 36, 0.23);
  animation: target-pulse 1.6s ease-out infinite;
}

.status-meta {
  position: absolute;
  right: clamp(30px, 5vw, 72px);
  bottom: clamp(30px, 5vw, 72px);
  left: clamp(30px, 5vw, 72px);
  display: flex;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid rgba(238, 233, 220, 0.24);
}

.status-meta strong {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.11em;
}

.game-copy {
  align-self: center;
  padding: clamp(76px, 9vw, 136px) clamp(30px, 7vw, 110px);
}

.game-copy > p:not(.eyebrow) {
  max-width: 670px;
  color: #c8c6bc;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.7vw, 1.45rem);
  line-height: 1.55;
}

.feature-list {
  max-width: 680px;
  padding: 0;
  margin: 44px 0;
  list-style: none;
  border-top: 1px solid rgba(238, 233, 220, 0.2);
}

.feature-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 18px 0;
  color: #d9d6cc;
  border-bottom: 1px solid rgba(238, 233, 220, 0.2);
}

.feature-list span {
  color: var(--signal);
  font-family: var(--mono);
  font-size: 0.64rem;
}

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

.button-light:hover,
.button-light:focus-visible {
  color: var(--paper);
  background: var(--signal);
}

.closing {
  position: relative;
  display: grid;
  min-height: 590px;
  padding: clamp(90px, 11vw, 170px) clamp(24px, 7vw, 110px);
  text-align: center;
  place-items: center;
  background:
    radial-gradient(circle at center, rgba(227, 74, 36, 0.17), transparent 27%),
    linear-gradient(rgba(24, 27, 27, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(24, 27, 27, 0.05) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}

.closing::before {
  position: absolute;
  width: min(48vw, 600px);
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
}

.closing > * {
  position: relative;
  z-index: 1;
}

.closing .eyebrow {
  margin-bottom: -28px;
}

.closing h2 {
  max-width: 980px;
  margin: 0;
}

.closing > a {
  padding-bottom: 7px;
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-decoration: none;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
}

.closing > a:hover,
.closing > a:focus-visible {
  color: var(--signal-dark);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 2fr auto auto;
  gap: 30px;
  align-items: center;
  min-height: 108px;
  padding: 24px clamp(24px, 4vw, 68px);
  color: var(--paper);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer p {
  margin: 0;
  color: #a7aaa5;
}

.site-footer a {
  color: var(--signal);
}

.reveal {
  animation: reveal-up 850ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.reveal-delay {
  animation-delay: 160ms;
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes book-drift {
  0%,
  100% {
    transform: rotate(7deg) perspective(900px) rotateY(-8deg) translateY(0);
  }
  50% {
    transform: rotate(5deg) perspective(900px) rotateY(-4deg) translateY(-10px);
  }
}

@keyframes radar-sweep {
  to {
    transform: rotate(360deg);
  }
}

@keyframes target-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 1px rgba(227, 74, 36, 0.48);
  }
  60% {
    box-shadow: 0 0 0 13px rgba(227, 74, 36, 0);
  }
}

@media (max-width: 900px) {
  :root {
    --page: calc(100vw - 18px);
  }

  .page-shell {
    margin-block: 9px;
  }

  .site-header {
    min-height: 76px;
  }

  .site-nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 80px;
  }

  .hero-copy {
    max-width: none;
  }

  h1 {
    font-size: clamp(4rem, 15vw, 7rem);
  }

  .hero-object {
    margin-top: 50px;
  }

  .hero-object::before {
    width: min(68vw, 460px);
  }

  .book {
    width: min(52vw, 310px);
  }

  .editorial-section {
    grid-template-columns: 50px 1fr;
  }

  .section-copy {
    grid-column: 2;
  }

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

  .principles article {
    min-height: auto;
  }

  .principles article + article {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .principles h3 {
    margin-top: 50px;
  }

  .game-section {
    grid-template-columns: 1fr;
  }

  .game-status {
    min-height: 610px;
    border-right: 0;
    border-bottom: 1px solid rgba(238, 233, 220, 0.18);
  }

  .radar-grid {
    width: min(70vw, 480px);
  }

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

  .site-footer p {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .wordmark svg {
    width: 30px;
  }

  .wordmark span {
    font-size: 0.73rem;
  }

  .nav-cta {
    padding: 10px 13px;
  }

  .hero {
    min-height: auto;
    padding-bottom: 76px;
    background:
      linear-gradient(rgba(24, 27, 27, 0.045) 1px, transparent 1px),
      linear-gradient(90deg, rgba(24, 27, 27, 0.045) 1px, transparent 1px);
    background-size: 38px 38px;
  }

  h1 {
    font-size: clamp(3.6rem, 18vw, 5.4rem);
  }

  .hero-lede {
    font-size: 1.18rem;
  }

  .hero-object {
    min-height: 430px;
  }

  .book {
    width: min(68vw, 280px);
  }

  .signal {
    right: -8px;
  }

  .hero-index span:nth-child(2) {
    display: none;
  }

  .editorial-section {
    grid-template-columns: 1fr;
  }

  .section-number {
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
  }

  .section-copy {
    grid-column: auto;
  }

  .section-heading h2,
  .game-copy h2,
  .closing h2 {
    font-size: clamp(2.7rem, 13vw, 4.6rem);
  }

  .game-status {
    min-height: 470px;
  }

  .status-meta {
    gap: 18px;
  }

  .feature-list li {
    grid-template-columns: 38px 1fr;
  }

  .closing {
    min-height: 490px;
  }

  .closing::before {
    width: 78vw;
  }
}

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

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