/* Hallmark · macrostructure: Marquee Hero · H1 knobs: size=xl, alignment=left-bias, underlay=none
 * theme: custom · vibe: "gothic case archive, brass, violet" · paper: oklch(14% 0.018 284) · accent: oklch(76% 0.15 75)
 * display: Fraunces · body: IBM Plex Sans · axes: dark / roman-serif / chromatic-amber · nav: N9 · footer: Ft5
 * enrichment: E8 user-supplied game art · studied: no · context: user-provided · v1.1.0
 * contrast: pass (40–41) · nav: N9 · footer: Ft5 · slop: pass (42–45)
 * honest: pass (46) · chrome: pass (47) · tokens: pass (48) · responsive: pass (49) · mobile: pass (34, 49, 50–57)
 * pre-emit critique: P5 H5 E4 S5 R5 V5
 */
@import url("./tokens.css");

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

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  margin: 0;
  overflow-x: clip;
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.62;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

h1,
h2,
h3,
p,
dl,
dd,
figure,
ol {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 800;
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
  min-width: 0;
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw + 0.5rem, var(--text-3xl));
  line-height: 1.05;
}

.skip-link {
  position: fixed;
  inset-block-start: var(--space-sm);
  inset-inline-start: var(--space-sm);
  z-index: var(--z-sticky);
  padding: var(--space-sm) var(--space-md);
  transform: translateY(-180%);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  text-decoration: none;
}

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

.nav {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-raised);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: max(var(--space-lg), env(safe-area-inset-top)) var(--page-gutter) var(--space-lg);
}

.wordmark {
  display: grid;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
}

.wordmark small {
  margin-block-start: var(--space-2xs);
  color: var(--color-ink-2);
  font-family: var(--font-body);
  font-size: var(--text-micro);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav__play,
.nav__community,
.nav__research,
.action {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  white-space: nowrap;
  text-decoration: none;
  transition:
    transform var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__community,
.nav__research {
  min-height: 2.75rem;
  padding-inline: var(--space-sm);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  font-weight: 600;
}

.nav__play {
  min-height: 2.75rem;
  padding-inline: var(--space-lg);
  border: var(--rule-hair) solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-scrim);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 600;
}

.hero {
  position: relative;
  min-height: 86dvh;
  display: grid;
  align-items: end;
  overflow: clip;
  background: var(--color-paper-2);
  color: var(--color-ink);
}

.hero__image,
.hero__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__image {
  object-fit: cover;
  object-position: 56% center;
  animation: hero-image-in var(--dur-long) var(--ease-out) both;
}

.hero__shade {
  background:
    linear-gradient(to top, var(--color-hero-shade), var(--color-hero-mid) 48%, var(--color-transparent) 78%),
    linear-gradient(to right, var(--color-hero-mid), var(--color-transparent) 62%);
}

.hero__copy {
  position: relative;
  z-index: var(--z-base);
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-4xl) var(--page-gutter) var(--space-2xl);
  animation: hero-copy-in var(--dur-long) var(--ease-out) var(--dur-micro) both;
}

.hero__lead {
  max-width: 34ch;
  color: var(--color-ink-2);
  font-size: var(--text-md);
}

.hero__actions {
  display: grid;
  gap: var(--space-sm);
  width: min(100%, 31rem);
  margin-block-start: var(--space-md);
}

.hero__actions .action {
  min-height: 3.25rem;
  padding-inline: var(--space-xl);
  border-radius: var(--radius-sm);
  font-size: var(--text-base);
}

.action--glass {
  border: var(--rule-hair) solid var(--color-rule);
  background: color-mix(in srgb, var(--color-paper) 68%, transparent);
  color: var(--color-ink);
  backdrop-filter: blur(12px);
}

.case-mark {
  width: fit-content;
  padding-block-end: var(--space-xs);
  border-block-end: var(--rule-hair) solid var(--color-accent);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 12ch;
  font-size: clamp(2.7rem, 14vw, 4.5rem);
  line-height: 0.98;
  text-wrap: balance;
}

.hero__caption {
  display: none;
  position: absolute;
  inset-inline-end: var(--page-gutter);
  inset-block-end: var(--space-2xl);
  z-index: var(--z-base);
  max-width: 26ch;
  padding-inline-start: var(--space-md);
  border-inline-start: var(--rule-hair) solid var(--color-accent);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

.brief,
.fieldwork,
.science,
.development,
.footer {
  width: min(100%, var(--content-max));
  margin-inline: auto;
  padding-inline: var(--page-gutter);
}

.brief {
  display: grid;
  gap: var(--space-3xl);
  padding-block: var(--space-3xl) var(--space-4xl);
}

.brief__statement {
  display: grid;
  gap: var(--space-xl);
}

.brief__statement h2 {
  max-width: 16ch;
}

.brief__statement > p,
.section-heading > p,
.science__intro > p,
.development__heading > p {
  max-width: var(--measure);
  font-size: var(--text-base);
}

.actions {
  display: grid;
  gap: var(--space-md);
}

.action {
  width: 100%;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.action--primary {
  border: var(--rule-hair) solid var(--color-accent);
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.action--secondary {
  border: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
  color: var(--color-ink);
}

.case-facts {
  display: grid;
  border-block: var(--rule-hair) solid var(--color-rule);
}

.case-facts div {
  display: grid;
  grid-template-columns: minmax(4rem, 0.45fr) minmax(0, 1fr);
  align-items: baseline;
  gap: var(--space-lg);
  padding-block: var(--space-lg);
}

.case-facts div + div {
  border-block-start: var(--rule-hair) solid var(--color-rule-2);
}

.case-facts dt {
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  line-height: 1;
}

.case-facts dd {
  color: var(--color-ink);
  font-weight: 600;
}

.fieldwork {
  display: grid;
  gap: var(--space-2xl);
  padding-block-end: var(--space-3xl);
}

.section-heading,
.science__intro,
.development__heading {
  display: grid;
  gap: var(--space-lg);
}

.section-heading h2,
.science__intro h2,
.development__heading h2 {
  max-width: 18ch;
}

.feature-capture {
  min-width: 0;
  border: var(--rule-hair) solid var(--color-rule);
  background: var(--color-paper-2);
}

.feature-capture img {
  width: 100%;
  height: auto;
  background: var(--color-paper-3);
}

.feature-capture figcaption {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-lg);
}

.feature-capture figcaption strong {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.2;
}

.science {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-4xl);
  border-block: var(--rule-hair) solid var(--color-rule-2);
}

.science__captures {
  display: grid;
  gap: var(--space-xl);
  min-width: 0;
}

.development {
  display: grid;
  gap: var(--space-2xl);
  padding-block: var(--space-3xl) var(--space-4xl);
}

.milestones {
  list-style: none;
  padding: 0;
  border-block-start: var(--rule-hair) solid var(--color-rule);
}

.milestones li {
  display: grid;
  gap: var(--space-sm);
  padding-block: var(--space-xl);
  border-block-end: var(--rule-hair) solid var(--color-rule-2);
}

.milestones span {
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.milestones strong {
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.25;
}

.milestones p {
  max-width: var(--measure);
}

.history-link {
  width: 100%;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  border-block-end: var(--rule-hair) solid var(--color-accent);
  color: var(--color-ink);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.footer {
  display: grid;
  gap: var(--space-3xl);
  padding-block: var(--space-3xl) max(var(--space-xl), env(safe-area-inset-bottom));
  border-block-start: var(--rule-hair) solid var(--color-rule);
}

.footer__statement {
  max-width: 28ch;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 5vw, var(--text-3xl));
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.08;
}

.footer__meta {
  display: grid;
  gap: var(--space-sm);
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.footer__meta a {
  width: fit-content;
  color: var(--color-ink);
  text-decoration-color: var(--color-accent);
  text-underline-offset: var(--space-2xs);
  white-space: nowrap;
}

.wordmark,
.history-link,
.footer__meta a,
.skip-link {
  transition:
    transform var(--dur-micro) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    background-color var(--dur-short) var(--ease-out);
}

.nav__play:focus-visible,
.nav__research:focus-visible,
.wordmark:focus-visible,
.action:focus-visible,
.history-link:focus-visible,
.footer__meta a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: var(--space-2xs);
}

.nav__play:active,
.action:active,
.wordmark:active,
.history-link:active,
.footer__meta a:active,
.skip-link:active {
  transform: translateY(var(--space-3xs));
}

.nav__play[aria-disabled="true"],
.action[aria-disabled="true"],
.wordmark[aria-disabled="true"],
.history-link[aria-disabled="true"],
.footer__meta a[aria-disabled="true"],
.skip-link[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
  pointer-events: none;
}

.nav__play[data-state="loading"],
.action[data-state="loading"] {
  cursor: wait;
  opacity: 0.72;
}

.nav__play[data-state="error"],
.action[data-state="error"] {
  border-color: var(--color-error);
  border-style: dashed;
}

.nav__play[data-state="success"],
.action[data-state="success"] {
  border-color: var(--color-success);
  border-style: double;
}

@keyframes hero-image-in {
  from {
    opacity: 0;
  }
}

@keyframes hero-copy-in {
  from {
    opacity: 0;
    transform: translateY(var(--space-sm));
  }
}

@media (hover: hover) and (pointer: fine) {
  .nav__play:hover,
  .nav__community:hover,
  .nav__research:hover,
  .action:hover {
    transform: translateY(calc(var(--space-3xs) * -1));
  }

  .nav__play:hover,
  .nav__community:hover,
  .nav__research:hover,
  .action--glass:hover,
  .action--secondary:hover {
    border-color: var(--color-accent);
    background: var(--color-paper-3);
  }

  .action--primary:hover {
    background: var(--color-focus);
  }

  .history-link:hover,
  .footer__meta a:hover,
  .wordmark:hover {
    color: var(--color-accent);
  }

  .skip-link:hover {
    background: var(--color-focus);
  }
}

@media (min-width: 40rem) {
  .wordmark {
    font-size: var(--text-md);
  }

  .wordmark small {
    font-size: var(--text-xs);
  }

  .nav__play {
    font-size: var(--text-base);
  }

  .hero__copy {
    padding-block-end: var(--space-3xl);
  }

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

  .hero h1 {
    font-size: var(--text-display);
  }

  .hero__caption {
    display: block;
    inset-block-end: var(--space-3xl);
  }

  .brief__statement > p,
  .section-heading > p,
  .science__intro > p,
  .development__heading > p {
    font-size: var(--text-md);
  }

  .actions {
    display: flex;
    flex-wrap: wrap;
  }

  .action {
    width: auto;
  }

  .history-link {
    width: fit-content;
    justify-content: flex-start;
    font-size: var(--text-base);
  }

  .brief {
    grid-template-columns: minmax(0, 1.35fr) minmax(16rem, 0.65fr);
    align-items: end;
  }

  .science__captures {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .feature-capture--circuit {
    margin-block-start: var(--space-3xl);
  }

  .milestones li {
    grid-template-columns: minmax(7rem, 0.35fr) minmax(13rem, 0.75fr) minmax(0, 1.2fr);
    align-items: baseline;
    gap: var(--space-xl);
  }

  .footer__meta {
    grid-template-columns: 1fr auto auto;
    align-items: baseline;
    gap: var(--space-xl);
  }
}

@media (min-width: 60rem) {
  .hero__image {
    object-position: center center;
  }

  .fieldwork {
    grid-template-columns: minmax(18rem, 0.6fr) minmax(0, 1.4fr);
    align-items: end;
  }

  .section-heading {
    padding-block-end: var(--space-2xl);
  }

  .science {
    grid-template-columns: minmax(18rem, 0.58fr) minmax(0, 1.42fr);
    align-items: start;
  }

  .science__intro {
    position: sticky;
    inset-block-start: var(--space-2xl);
  }

  .development {
    grid-template-columns: minmax(18rem, 0.65fr) minmax(0, 1.35fr);
  }

  .development__heading {
    padding-block-start: var(--space-xl);
  }

  .history-link {
    grid-column: 2;
  }
}

@media (min-width: 90rem) {
  .hero__copy {
    padding-block-end: var(--space-4xl);
  }

  .hero__caption {
    inset-block-end: var(--space-4xl);
  }
}

@media (pointer: coarse) {
  .nav__play,
  .action,
  .history-link,
  .footer__meta a {
    min-height: 2.75rem;
  }

  @media (max-width: 32rem) {
    /* The nav has room for the wordmark and one button at this size. Both quiet
       links collapse; the footer keeps Research reachable. */
    .nav__community,
    .nav__research {
      display: none;
    }

    .nav__play {
      padding-inline: var(--space-sm);
    }
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }

  .hero__copy {
    transform: none;
  }
}