:root {
  --ink: #1c1914;
  --ink-soft: #4a4338;
  --paper: #f3ece0;
  --paper-2: #e7ddd0;
  --rule: #cbbfae;
  --accent: #1f4d6e;
  --accent-ink: #16384f;
  --neon: #ff5a5a;
  --dart-bg: #0d0c0b;
  --dart-panel: #171513;
  --dart-ink: #f4efe6;
  --dart-muted: #b7aea2;
  --max: 68rem;
  --font-display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --font-body: "Source Sans 3", "Source Sans Pro", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.55;
}

body.theme-dart {
  color: var(--dart-ink);
  background: var(--dart-bg);
}

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

a {
  color: var(--accent);
}

.theme-dart a {
  color: #8ec4e8;
}

a:hover {
  color: var(--accent-ink);
}

.theme-dart a:hover {
  color: #d7ecf8;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  padding: 0.4rem 0.7rem;
  background: var(--ink);
  color: var(--paper);
  z-index: 10;
}

.skip:focus {
  top: 0.75rem;
}

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

.site-header,
.site-footer {
  border-bottom: 1px solid var(--rule);
}

.theme-dart .site-header,
.theme-dart .site-footer {
  border-color: #2a2622;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
}

.theme-dart .site-header {
  background: color-mix(in srgb, var(--dart-bg) 88%, transparent);
}

.site-header .wrap,
.site-footer .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 560;
  letter-spacing: -0.02em;
  color: inherit;
  text-decoration: none;
}

.brand:hover {
  color: inherit;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.15rem;
}

nav a {
  color: inherit;
  text-decoration: none;
  font-size: 0.98rem;
}

nav a[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.28em;
}

.hero {
  padding: 4.5rem 0 3rem;
}

.hero h1,
.page-title {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.4rem);
  font-weight: 560;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.lede {
  max-width: 36rem;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.25rem;
}

.theme-dart .lede {
  color: var(--dart-muted);
}

.section {
  padding: 1.25rem 0 4rem;
}

.section h2 {
  margin: 0 0 1.25rem;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 560;
}

.app-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.4rem 1.6rem;
  padding: 1.4rem 1.5rem 1.5rem;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  text-decoration: none;
  color: inherit;
}

.app-card:hover {
  color: inherit;
  border-color: var(--ink);
}

.app-card img {
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 1.25rem;
  object-fit: cover;
}

.app-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.85rem;
}

.app-card p {
  margin: 0 0 0.85rem;
  color: var(--ink-soft);
}

.app-card .go {
  font-weight: 600;
  color: var(--accent);
}

.wordmark {
  display: block;
  width: min(36rem, 100%);
  margin: 0 0 1.4rem;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  margin: 1.25rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
}

.theme-dart .meta-row {
  color: var(--dart-muted);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.4rem 1.75rem;
}

.features dt {
  font-weight: 650;
  margin: 0 0 0.25rem;
}

.features dd {
  margin: 0;
  color: var(--ink-soft);
}

.theme-dart .features dd {
  color: var(--dart-muted);
}

.games {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(9.5rem, 1fr));
  gap: 1rem;
}

.games figure {
  margin: 0;
}

.games img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 0.85rem;
  background: #111;
}

.games figcaption {
  margin-top: 0.45rem;
  font-size: 0.95rem;
}

.policy,
.support {
  padding-bottom: 4rem;
}

.policy h1,
.support h1 {
  margin-top: 2.75rem;
}

.policy h2 {
  margin-top: 2rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
}

.policy p,
.policy li {
  max-width: 44rem;
}

.policy table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0 1.5rem;
  font-size: 1rem;
}

.policy th,
.policy td {
  border-bottom: 1px solid var(--rule);
  padding: 0.65rem 0.7rem 0.65rem 0;
  text-align: left;
  vertical-align: top;
}

.note {
  padding: 0.9rem 1rem;
  background: var(--paper-2);
  border-left: 3px solid var(--accent);
}

.theme-dart .note {
  background: var(--dart-panel);
  border-left-color: var(--neon);
}

.site-footer {
  border-bottom: 0;
  border-top: 1px solid var(--rule);
  margin-top: auto;
}

.site-footer small {
  color: var(--ink-soft);
}

.theme-dart .site-footer small {
  color: var(--dart-muted);
}

@media (max-width: 640px) {
  .app-card {
    grid-template-columns: 1fr;
  }

  .site-header .wrap,
  .site-footer .wrap {
    align-items: flex-start;
    flex-direction: column;
    padding-block: 0.85rem;
  }
}