:root {
  color-scheme: dark;
  --bg: #000;
  --primary: #f2f2f2;
  --emphasis: #fff;
  --muted: #8a8a8a;
  --line: rgba(255, 255, 255, 0.24);
  --line-strong: rgba(255, 255, 255, 0.72);
  --inverse-muted: rgba(0, 0, 0, 0.62);
  --font-display: "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --content: 74rem;
  --transition: 160ms cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  min-width: 20rem;
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 20rem;
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--primary);
  font-family: var(--font-display);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--emphasis);
  color: var(--bg);
}

a {
  color: inherit;
}

code,
pre {
  font-family: var(--font-mono);
}

.site-header {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) max(var(--space-6), calc((100vw - var(--content)) / 2));
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.brand {
  display: inline-flex;
  width: max-content;
  align-items: center;
  gap: var(--space-3);
  color: var(--emphasis);
  text-decoration: none;
}

.brand svg {
  width: 2rem;
  height: 2rem;
  fill: currentColor;
}

.brand span {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.header-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  border-bottom: 1px solid transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color var(--transition), color var(--transition);
}

.header-link:hover,
.header-link.active {
  border-bottom-color: var(--emphasis);
  color: var(--emphasis);
}

.brand:focus-visible,
.header-link:focus-visible,
.text-link:focus-visible,
.asset-button:focus-visible,
.secondary-button:focus-visible,
.asset-list a:focus-visible {
  outline: 2px solid var(--emphasis);
  outline-offset: var(--space-1);
}

main {
  width: min(calc(100% - (var(--space-6) * 2)), var(--content));
  margin: 0 auto;
  padding-bottom: var(--space-16);
}

.hero {
  padding: var(--space-12) 0 var(--space-8);
}

.page-heading h1 {
  margin: 0 0 var(--space-4);
  color: var(--emphasis);
  font-size: clamp(2.25rem, 5.5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.page-heading p {
  max-width: 58ch;
  margin: 0 0 var(--space-3);
  color: var(--primary);
  font-family: var(--font-serif);
  font-size: clamp(1rem, 1.8vw, 1.25rem);
  font-weight: 300;
  line-height: 1.45;
}

.page-heading .network-tag {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

.eyebrow,
.platform-kicker {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

.download-section {
  padding-top: var(--space-8);
  border-top: 1px solid var(--line-strong);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

h2 {
  margin: var(--space-2) 0 0;
  color: var(--primary);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.text-link {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 0 var(--space-4);
  background: transparent;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.text-link:hover,
.text-link:focus-visible {
  border-color: var(--emphasis);
  background: var(--emphasis);
  color: var(--bg);
}

.platform-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  border: 0;
  padding: 0;
  white-space: nowrap;
}

.platform-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: var(--space-8);
  border: 1px solid var(--line-strong);
}

.platform-options label {
  display: flex;
  min-height: 6rem;
  align-items: center;
  gap: var(--space-4);
  border-right: 1px solid var(--line);
  border-radius: 0;
  padding: var(--space-4);
  background: transparent;
  color: var(--primary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.platform-options label:last-child {
  border-right: 0;
}

.platform-options label > span:last-child {
  display: grid;
  min-width: 0;
}

.platform-options small,
.platform-options em {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-style: normal;
  letter-spacing: 0.1em;
}

.platform-options strong {
  margin: var(--space-1) 0;
  font-size: 1.0625rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.platform-mark {
  display: grid;
  min-width: 3rem;
  align-self: stretch;
  place-items: center;
  border-right: 1px solid var(--line);
  padding-right: var(--space-4);
  color: var(--emphasis);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.platform-options label:hover,
#platform-windows:checked ~ .platform-options label[for="platform-windows"],
#platform-macos:checked ~ .platform-options label[for="platform-macos"],
#platform-linux:checked ~ .platform-options label[for="platform-linux"] {
  background: var(--emphasis);
  color: var(--bg);
}

.platform-options label:hover small,
.platform-options label:hover em,
#platform-windows:checked ~ .platform-options label[for="platform-windows"] small,
#platform-windows:checked ~ .platform-options label[for="platform-windows"] em,
#platform-macos:checked ~ .platform-options label[for="platform-macos"] small,
#platform-macos:checked ~ .platform-options label[for="platform-macos"] em,
#platform-linux:checked ~ .platform-options label[for="platform-linux"] small,
#platform-linux:checked ~ .platform-options label[for="platform-linux"] em {
  color: var(--inverse-muted);
}

.platform-options label:hover .platform-mark,
#platform-windows:checked ~ .platform-options label[for="platform-windows"] .platform-mark,
#platform-macos:checked ~ .platform-options label[for="platform-macos"] .platform-mark,
#platform-linux:checked ~ .platform-options label[for="platform-linux"] .platform-mark {
  border-color: var(--inverse-muted);
  color: var(--bg);
}

#platform-windows:focus-visible ~ .platform-options label[for="platform-windows"],
#platform-macos:focus-visible ~ .platform-options label[for="platform-macos"],
#platform-linux:focus-visible ~ .platform-options label[for="platform-linux"] {
  position: relative;
  z-index: 1;
  outline: 2px solid var(--emphasis);
  outline-offset: var(--space-1);
}

.platform-detail {
  display: none;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--bg);
}

#platform-windows:checked ~ .platform-panels .windows-detail,
#platform-macos:checked ~ .platform-panels .macos-detail,
#platform-linux:checked ~ .platform-panels .linux-detail {
  display: block;
}

.platform-detail > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-6);
  border-bottom: 1px solid var(--line);
}

.platform-detail h3 {
  margin: var(--space-2) 0 var(--space-1);
  color: var(--emphasis);
  font-size: clamp(1.375rem, 2.5vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.platform-desc {
  margin: 0;
  color: var(--primary);
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.asset-button,
.secondary-button,
.asset-list a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--emphasis);
  border-radius: 0;
  padding: 0 var(--space-5);
  background: transparent;
  color: var(--emphasis);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.secondary-button {
  border-color: var(--line-strong);
  color: var(--primary);
}

.asset-button:hover,
.asset-button:focus-visible,
.secondary-button:hover,
.secondary-button:focus-visible,
.asset-list a:hover,
.asset-list a:focus-visible {
  border-color: var(--emphasis);
  background: var(--emphasis);
  color: var(--bg);
}

.asset-list {
  display: grid;
  border-bottom: 1px solid var(--line);
}

.asset-list > div {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(13rem, 0.7fr) auto minmax(18rem, 1fr);
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--line);
}

.asset-list > div:last-child {
  border-bottom: 0;
}

.asset-list span {
  display: grid;
  min-width: 0;
}

.asset-list strong {
  font-size: 0.875rem;
  font-weight: 500;
}

.asset-list small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.04em;
}

.asset-list code {
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-all;
  color: var(--primary);
  font-size: 0.6875rem;
  line-height: 1.5;
}

.asset-list a {
  min-height: 2.25rem;
  padding: 0 var(--space-4);
}

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

.detail-columns > section {
  min-width: 0;
  padding: var(--space-6);
}

.detail-columns > section + section {
  border-left: 1px solid var(--line);
}

h4 {
  margin-bottom: var(--space-4);
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.steps {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  align-items: start;
  gap: var(--space-3);
}

.steps li > span {
  display: grid;
  width: 1.5rem;
  height: 1.5rem;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--emphasis);
  font-family: var(--font-mono);
  font-size: 0.625rem;
}

.steps p {
  margin: 0;
  color: var(--primary);
  font-family: var(--font-serif);
  font-size: 0.9375rem;
  line-height: 1.5;
}

.steps code {
  color: var(--emphasis);
  font-size: 0.8125rem;
  overflow-wrap: anywhere;
  word-break: break-all;
}

.terminal {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--bg);
}

.terminal > span {
  display: block;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.16em;
}

.terminal pre {
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  padding: var(--space-4);
  color: var(--primary);
  font-size: 0.6875rem;
  line-height: 1.6;
}

.package-note {
  margin: var(--space-4) 0 0;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.package-note strong {
  color: var(--primary);
}

.security-details {
  border: 1px solid var(--line-strong);
  border-radius: 0;
  margin-top: var(--space-12);
  background: var(--bg);
}

.security-details summary {
  display: flex;
  min-height: 3rem;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  color: var(--emphasis);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.security-details[open] summary {
  border-bottom: 1px solid var(--line);
}

.security-content {
  display: grid;
  gap: var(--space-6);
  padding: var(--space-6);
}

.security-downloads p {
  margin: 0 0 var(--space-3);
  color: var(--muted);
  font-size: 0.875rem;
}

.security-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.security-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin: 0;
  padding: var(--space-4);
  border: 1px solid var(--line);
}

.security-facts dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.security-facts dd {
  margin: var(--space-1) 0 0;
  overflow-wrap: anywhere;
  color: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.4;
}

.security-notes p {
  margin: 0;
  padding: var(--space-3) 0;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.55;
}

.security-notes p + p {
  border-top: 1px solid var(--line);
}

.security-notes strong {
  color: var(--primary);
}

.security-notes code {
  color: var(--primary);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-5) max(var(--space-6), calc((100vw - var(--content)) / 2));
  border-top: 1px solid var(--line);
  background: var(--bg);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  letter-spacing: 0.12em;
}

@media (max-width: 56rem) {
  .platform-options label {
    min-height: 5.5rem;
  }

  .asset-list > div {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .asset-list code {
    grid-column: 1 / -1;
  }

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

  .detail-columns > section + section {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

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

@media (max-width: 40rem) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
  }

  .header-nav {
    width: 100%;
    gap: var(--space-4);
    overflow-x: auto;
    padding-top: var(--space-3);
    border-top: 1px solid var(--line);
  }

  main {
    width: min(calc(100% - (var(--space-4) * 2)), var(--content));
  }

  .hero {
    padding: var(--space-8) 0 var(--space-6);
  }

  .page-heading h1 {
    font-size: clamp(2rem, 9vw, 2.75rem);
  }

  .section-heading,
  .platform-detail > header {
    align-items: flex-start;
    flex-direction: column;
  }

  .text-link,
  .platform-detail > header .asset-button,
  .platform-detail > header .secondary-button,
  .security-actions a {
    width: 100%;
  }

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

  .platform-options label {
    min-height: 5rem;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .platform-options label:last-child {
    border-bottom: 0;
  }

  .platform-detail > header,
  .detail-columns > section,
  .security-content {
    padding: var(--space-4);
  }

  .asset-list > div {
    grid-template-columns: 1fr;
    padding: var(--space-4);
  }

  .asset-list code {
    grid-column: 1;
  }

  .asset-list a {
    width: 100%;
  }

  .security-facts {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
    padding: var(--space-5) var(--space-4);
  }
}

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

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