:root {
  color-scheme: dark;
  --ink: #f7f6ee;
  --muted: #bbb9cc;
  --night: #0d0c1c;
  --deep: #14122b;
  --panel: #1c1938;
  --panel-bright: #242047;
  --line: #3d3962;
  --ocean: #58c8d8;
  --ocean-dark: #2296ad;
  --sun: #ffdc63;
  --coral: #ff6f7d;
  --orchid: #cc77e8;
  --max-width: 74rem;
  --radius: 1rem;
  --shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--night);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

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

a {
  color: var(--ocean);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--sun);
}

a:focus-visible,
summary:focus-visible {
  outline: 0.2rem solid var(--sun);
  outline-offset: 0.25rem;
  border-radius: 0.2rem;
}

code {
  padding: 0.1em 0.35em;
  border: 1px solid rgba(88, 200, 216, 0.24);
  border-radius: 0.3rem;
  background: rgba(88, 200, 216, 0.09);
  color: #d9fbff;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

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

h1,
h2,
h3 {
  line-height: 1.12;
  text-wrap: balance;
}

h1 {
  margin-bottom: 1.4rem;
  font-size: clamp(3rem, 7.5vw, 6.6rem);
  letter-spacing: -0.065em;
}

h1 span {
  color: var(--sun);
}

h2 {
  margin-bottom: 1.2rem;
  font-size: clamp(2rem, 4.8vw, 3.7rem);
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.25rem;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 1rem;
  transform: translateY(-200%);
  border-radius: 0.4rem;
  background: var(--sun);
  color: #171426;
  font-weight: 800;
}

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

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 12, 28, 0.96);
}

.header-inner {
  display: flex;
  min-height: 5rem;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  color: var(--ink);
  line-height: 1.05;
  text-decoration: none;
}

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

.brand-title {
  font-size: 1.05rem;
  font-weight: 850;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  margin-top: 0.25rem;
  color: var(--ocean);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-list a:hover {
  color: var(--sun);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4rem, 8vw, 8rem) 0 clamp(5rem, 9vw, 9rem);
  background:
    radial-gradient(circle at 88% 13%, rgba(255, 220, 99, 0.12), transparent 20rem),
    radial-gradient(circle at 5% 85%, rgba(204, 119, 232, 0.14), transparent 24rem),
    linear-gradient(165deg, var(--deep), var(--night) 65%);
}

.hero::after {
  position: absolute;
  right: -5%;
  bottom: -4rem;
  left: -5%;
  height: 7rem;
  background: repeating-linear-gradient(175deg, transparent 0 1rem, rgba(88, 200, 216, 0.07) 1rem 1.35rem);
  content: "";
  pointer-events: none;
}

.hero-grid,
.section-grid,
.gallery-grid,
.options-grid,
.testing-grid,
.legal-grid {
  display: grid;
  align-items: center;
  gap: clamp(2.5rem, 6vw, 6rem);
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 0.92fr);
}

.hero-copy,
.hero-frame {
  position: relative;
  z-index: 1;
}

.hero-summary,
.lead {
  max-width: 44rem;
  color: #d2d0df;
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
}

.narrow {
  max-width: 50rem;
}

.eyebrow {
  margin-bottom: 0.8rem;
  color: var(--ocean);
  font-size: 0.77rem;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.fact-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 2rem 0;
  padding: 0;
  list-style: none;
}

.fact-list li {
  padding: 0.4rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: #d9d7e5;
  font-size: 0.8rem;
  font-weight: 750;
}

.button-row,
.download-actions,
.contribute-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 0.55rem;
  font-weight: 850;
  line-height: 1.15;
  text-align: center;
  text-decoration: none;
}

.button-primary {
  border-color: var(--sun);
  background: var(--sun);
  color: #171426;
}

.button-primary:hover {
  border-color: #fff2a3;
  background: #fff2a3;
  color: #171426;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.035);
  color: var(--ink);
}

.button-secondary:hover {
  border-color: var(--ocean);
  color: var(--ocean);
}

.text-link {
  font-weight: 850;
  text-decoration-thickness: 0.12em;
}

.fine-print {
  max-width: 34rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-frame,
.gallery-frame,
.options-frame {
  margin: 0;
  padding: 0.65rem;
  border: 1px solid rgba(88, 200, 216, 0.34);
  border-radius: var(--radius);
  background: rgba(88, 200, 216, 0.08);
  box-shadow: var(--shadow);
  transform: rotate(0.7deg);
}

.hero-frame img,
.gallery-frame img,
.options-frame img {
  width: 100%;
  border-radius: calc(var(--radius) - 0.45rem);
  image-rendering: pixelated;
}

figcaption {
  padding: 0.7rem 0.35rem 0.2rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.section {
  padding: clamp(4.5rem, 9vw, 8rem) 0;
}

.section-play,
.section-options,
.section-testing {
  background: var(--deep);
}

.steps {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: play-step;
}

.steps li {
  display: grid;
  min-height: 4.6rem;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.025);
  grid-template-columns: 2.4rem 1fr;
}

.step-number {
  display: grid;
  width: 2.2rem;
  height: 2.2rem;
  place-items: center;
  border-radius: 50%;
  background: var(--ocean);
  color: #101321;
  font-weight: 900;
}

.privacy-note {
  margin-top: 3rem;
  padding: 1rem 1.25rem;
  border-left: 0.25rem solid var(--sun);
  background: rgba(255, 220, 99, 0.075);
  color: #dedbe8;
}

.feature-grid {
  display: grid;
  gap: 1rem;
  margin-top: 3rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  min-height: 15.5rem;
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--panel-bright), var(--panel));
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-index {
  display: block;
  margin-bottom: 2rem;
  color: var(--coral);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.section-gallery {
  border-block: 1px solid rgba(255, 255, 255, 0.07);
  background:
    linear-gradient(90deg, rgba(34, 150, 173, 0.08), transparent 40%),
    var(--night);
}

.gallery-frame {
  transform: rotate(-0.8deg);
}

.options-grid {
  grid-template-columns: minmax(20rem, 1.05fr) minmax(0, 0.82fr);
}

.options-frame {
  transform: none;
}

.check-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  margin: 0.7rem 0;
  padding-left: 1.6rem;
}

.check-list li::before {
  position: absolute;
  left: 0;
  color: var(--ocean);
  content: "✓";
  font-weight: 900;
}

.download-grid {
  display: grid;
  gap: 1rem;
  margin-top: 3rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.download-card {
  padding: clamp(1.4rem, 3vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.featured-download {
  border-color: rgba(255, 220, 99, 0.52);
  background: linear-gradient(145deg, rgba(255, 220, 99, 0.13), var(--panel));
}

.download-label {
  margin-bottom: 0.5rem;
  color: var(--coral);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.download-links {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
}

.download-links li {
  margin: 0.35rem 0;
}

.download-links.two-columns {
  columns: 2;
  column-gap: 2rem;
}

.compact-download {
  grid-column: 1 / -1;
}

.checksum-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.8rem;
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.88rem;
}

.testing-grid {
  align-items: start;
}

.status-card,
.link-panel {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.status-card {
  border-top: 0.3rem solid var(--coral);
}

.status-card p {
  color: #d2d0df;
}

.section-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.link-panel ul {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
}

.link-panel li {
  margin: 0.55rem 0;
}

.section-contribute {
  padding-top: 1rem;
}

.contribute-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(115deg, var(--panel-bright), rgba(88, 200, 216, 0.11));
}

.contribute-inner p:last-child {
  margin-bottom: 0;
}

.site-footer {
  margin-top: 7rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 0.82rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 56rem) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.75rem;
    padding-block: 1rem;
  }

  .nav-list {
    justify-content: flex-start;
  }

  .hero-grid,
  .section-grid,
  .gallery-grid,
  .options-grid,
  .testing-grid,
  .legal-grid {
    grid-template-columns: 1fr;
  }

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

  .hero-frame {
    width: min(100%, 40rem);
  }

  .options-frame {
    order: 2;
  }

  .contribute-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 39rem) {
  .shell {
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .nav-list {
    gap: 0.3rem 0.8rem;
  }

  .nav-list a {
    font-size: 0.82rem;
  }

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

  .feature-card {
    min-height: 0;
  }

  .compact-download {
    grid-column: auto;
  }

  .download-links.two-columns {
    columns: auto;
  }

  .button-row .button,
  .contribute-links .button {
    width: 100%;
  }
}

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

@media print {
  :root {
    color-scheme: light;
  }

  body {
    background: #fff;
    color: #111;
  }

  .site-header,
  .button-row,
  .contribute-links,
  .site-footer {
    display: none;
  }

  a {
    color: #065c6a;
  }
}