@font-face {
  font-family: "WSudoku Nerd Symbols";
  src: url("assets/fonts/wsudoku-nerd-symbols.woff") format("woff");
  font-display: block;
  font-style: normal;
  font-weight: 400;
  unicode-range: U+F1B6;
}

:root {
  color-scheme: dark;
  --page: #0d100f;
  --surface: #141817;
  --surface-strong: #1a1f1d;
  --line: #2c3330;
  --line-strong: #424b47;
  --text: #f4f1ee;
  --muted: #b5bcb8;
  --quiet: #929b96;
  --accent: #e45865;
  --accent-hover: #f06a76;
  --accent-ink: #19090b;
  --steam: #eef3f7;
  --steam-ink: #111820;
  --max-width: 72rem;
  --header-height: 4.5rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  font-synthesis: none;
  scroll-behavior: smooth;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--page);
}

body {
  min-width: 20rem;
  margin: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    var(--page);
  background-size: 3rem 3rem;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

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

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid #ffffff;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 0.9rem;
  transform: translateY(-150%);
  border-radius: 0.4rem;
  background: var(--text);
  color: var(--page);
  font-weight: 800;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(13, 16, 15, 0.96);
}

.header-inner {
  display: flex;
  width: min(calc(100% - 2rem), var(--max-width));
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin: 0 auto;
}

.wordmark {
  flex: 0 0 auto;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 720;
  letter-spacing: -0.04em;
  text-decoration: none;
}

.wordmark span {
  color: var(--accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
}

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

.site-nav .nav-steam {
  padding: 0.55rem 0.85rem;
  border: 1px solid var(--line-strong);
  border-radius: 0.45rem;
  background: var(--surface-strong);
  color: var(--text);
}

.site-nav .nav-steam:hover {
  border-color: var(--muted);
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 0.45rem;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span {
  position: absolute;
  width: 1.15rem;
  height: 1px;
  background: currentColor;
  transition: transform 160ms ease;
}

.nav-toggle span:first-child {
  transform: translateY(-0.25rem);
}

.nav-toggle span:last-child {
  transform: translateY(0.25rem);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg);
}

main,
.site-footer {
  width: min(calc(100% - 2rem), var(--max-width));
  margin-inline: auto;
}

.hero {
  display: grid;
  min-height: min(46rem, calc(100svh - var(--header-height)));
  align-items: center;
  grid-template-columns: minmax(0, 0.82fr) minmax(28rem, 1.18fr);
  gap: clamp(2.5rem, 5vw, 5.5rem);
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}

.eyebrow,
.platform-label {
  margin: 0 0 0.9rem;
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: clamp(4.5rem, 9vw, 7.5rem);
  font-weight: 620;
  letter-spacing: -0.075em;
  line-height: 0.9;
}

.hero h1::first-letter {
  color: var(--accent);
}

.hero-lede {
  max-width: 38rem;
  margin: 1.7rem 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 3.2rem;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  padding: 0.78rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.48rem;
  font-size: 0.9rem;
  font-weight: 760;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color 140ms ease,
    border-color 140ms ease,
    color 140ms ease;
}

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

.button-steam:hover {
  background: #ffffff;
}

.button-secondary {
  border-color: var(--line-strong);
  background: var(--surface);
  color: var(--text);
}

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

.steam-mark {
  display: inline-block;
  width: 1.2em;
  flex: 0 0 auto;
  font-family: "WSudoku Nerd Symbols", sans-serif;
  font-size: 1.35em;
  font-style: normal;
  font-weight: 400;
  line-height: 1;
  text-align: center;
}

.steam-mark::before {
  content: "\f1b6";
}

.store-note {
  margin: 1rem 0 0;
  color: var(--quiet);
  font-size: 0.82rem;
}

.hero-media {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 0.7rem;
  background: #090b0a;
}

.hero-media img {
  width: 100%;
  aspect-ratio: 1.72 / 1;
  object-fit: cover;
}

.section {
  padding: clamp(4.5rem, 9vw, 7.5rem) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

.section-intro {
  max-width: 45rem;
  margin-bottom: 2.5rem;
}

.section-intro h2,
.steam-cta h2 {
  max-width: 48rem;
  margin: 0;
  font-size: clamp(2.35rem, 5vw, 4.4rem);
  font-weight: 610;
  letter-spacing: -0.055em;
  line-height: 1.02;
}

.section-intro > p:last-child,
.section-intro-row > p,
.steam-cta p {
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-grid article {
  min-height: 18rem;
  padding: 1.5rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(20, 24, 23, 0.88);
}

.feature-grid h3,
.platform-card h3 {
  margin: 1.8rem 0 0.65rem;
  font-size: 1.16rem;
  letter-spacing: -0.025em;
}

.feature-grid p,
.platform-card > p {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.feature-icon {
  display: inline-flex;
  width: 2.7rem;
  height: 2.7rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 0.45rem;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 800;
}

.feature-icon-calendar {
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}

.feature-icon-versus {
  font-size: 0.72rem;
}

.feature-icon-frame {
  position: relative;
}

.feature-icon-frame::before {
  width: 1rem;
  height: 1rem;
  border: 1px dashed currentColor;
  border-radius: 50%;
  content: "";
}

.section-intro-row {
  display: grid;
  max-width: none;
  align-items: end;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.62fr);
  gap: 3rem;
}

.section-intro-row > p {
  margin: 0 0 0.35rem;
}

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

.screenshot-grid figure {
  display: flex;
  min-width: 0;
  margin: 0;
  flex-direction: column;
  padding: 0.5rem;
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--surface);
}

.screenshot-grid img {
  width: 100%;
  border-radius: 0.35rem;
  background: #070908;
  object-fit: cover;
}

.screenshot-wide img {
  aspect-ratio: 16 / 9;
}

.screenshot-grid figcaption {
  padding: 0.85rem 0.6rem 0.35rem;
  color: var(--quiet);
  font-size: 0.82rem;
}

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

.platform-card {
  display: flex;
  min-height: 22rem;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: var(--surface);
}

.platform-card-primary {
  border-color: #5b3c40;
}

.platform-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.platform-heading .platform-label {
  margin-bottom: 0.45rem;
}

.platform-heading h3 {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.platform-badge {
  padding: 0.35rem 0.55rem;
  border: 1px solid #6a737b;
  border-radius: 999px;
  color: #dce5ec;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.platform-badge-muted {
  border-color: var(--line-strong);
  color: var(--muted);
}

.platform-card > p {
  max-width: 34rem;
  margin-top: 1.25rem;
}

.platform-card .button {
  align-self: flex-start;
  margin-top: auto;
}

.steam-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  margin: 1rem 0 clamp(4.5rem, 9vw, 7.5rem);
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid #653f44;
  border-radius: 0.7rem;
  background: #191516;
}

.steam-cta h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}

.steam-cta p:not(.eyebrow) {
  margin-top: 0.7rem;
}

.button-large {
  min-height: 3.6rem;
  flex: 0 0 auto;
  padding-inline: 1.4rem;
}

.site-footer {
  display: grid;
  align-items: end;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
}

.footer-brand p,
.copyright {
  margin: 0.35rem 0 0;
  color: var(--quiet);
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 650;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.copyright {
  grid-column: 1 / -1;
}

@media (max-width: 62rem) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 43rem;
  }

  .hero-media {
    width: 100%;
  }

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

  .feature-grid article {
    min-height: 15rem;
  }
}

@media (max-width: 48rem) {
  :root {
    --header-height: 4.25rem;
  }

  .header-inner {
    flex-wrap: wrap;
    gap: 0;
  }

  .site-nav {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.75rem 1.25rem;
    padding: 0 0 1rem;
  }

  .js .nav-toggle {
    position: relative;
    display: inline-flex;
  }

  .js .site-nav {
    display: none;
  }

  .js .site-nav.is-open {
    display: flex;
  }

  .js .site-nav a:not(.nav-steam) {
    width: 100%;
    padding-block: 0.35rem;
  }

  .section-intro-row {
    display: block;
  }

  .section-intro-row > p {
    margin-top: 1.2rem;
  }

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

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

  .platform-card {
    min-height: 19rem;
  }

  .steam-cta {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-footer {
    display: flex;
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 34rem) {
  main,
  .site-footer,
  .header-inner {
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .hero {
    padding-block: 3.5rem;
  }

  .hero h1 {
    font-size: clamp(4rem, 22vw, 5.5rem);
  }

  .hero-actions,
  .hero-actions .button,
  .platform-card .button,
  .steam-cta .button {
    width: 100%;
  }

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

  .feature-grid article {
    min-height: 0;
  }

  .platform-heading {
    align-items: flex-start;
    flex-direction: column-reverse;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}

@media print {
  .site-header,
  .hero-actions,
  .steam-cta,
  .footer-links {
    display: none;
  }

  body {
    background: #ffffff;
    color: #111111;
  }
}