:root {
  color-scheme: dark light;
  --bg: #101112;
  --surface: #181a1b;
  --ink: #f4f4f6;
  --muted: #9ba4a7;
  --line: #2a2d2f;
  --lime: #b9ff66;
  --focus: #b9ff66;
  --btn-bg: #b9ff66;
  --btn-fg: #101112;
  --btn-hover-bg: #f4f4f6;
  --type-hero: 92px;
  --type-title: 44px;
  --type-subtitle: 22px;
  --type-lead: 21px;
  --type-body: 16px;
  --type-small: 14px;
  --lh-display: 1.08;
  --lh-heading: 1.25;
  --lh-body: 1.65;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 72px;
  --space-section: 128px;
  --radius-control: 8px;
  --radius-shot: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f4f6;
    --surface: #b7c9cc;
    --ink: #101112;
    --muted: #51595c;
    --line: #ced2d4;
    --focus: #344b51;
    --btn-bg: #101112;
    --btn-fg: #f4f4f6;
    --btn-hover-bg: #101112;
  }
  .primary:hover { color: var(--lime); }
}

* { box-sizing: border-box; }
html { scroll-padding-top: var(--space-md); scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; font-size: var(--type-body); font-weight: var(--weight-regular); line-height: var(--lh-body); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { text-decoration: underline; }
button, select { font: inherit; }
button, a, select { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 4px; }
[hidden] { display: none !important; }
h1, h2, h3, p, figure, dl, dd, ol { margin: 0; }
ol { padding: 0; list-style: none; }
h1, h2, h3 { font-weight: var(--weight-semibold); }
h1 { font-size: var(--type-hero); line-height: var(--lh-display); letter-spacing: -0.035em; text-wrap: balance; }
h2 { font-size: var(--type-title); line-height: var(--lh-heading); letter-spacing: -0.025em; }
h3, dt { font-size: var(--type-subtitle); line-height: var(--lh-heading); letter-spacing: -0.01em; font-weight: var(--weight-medium); }
.wrap { width: min(1120px, calc(100% - 96px)); margin-inline: auto; }
.quiet { font-size: var(--type-small); color: var(--muted); }
.eyebrow { margin-bottom: var(--space-md); font-size: var(--type-small); font-weight: var(--weight-medium); color: var(--muted); }
.skip-link { position: fixed; top: 8px; left: 8px; z-index: 2; padding: 12px 20px; background: var(--ink); color: var(--bg); transform: translateY(-180%); }
.skip-link:focus { transform: none; }

.site-header { display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); padding-block: var(--space-sm); }
.wordmark { display: inline-flex; gap: 10px; align-items: center; font-size: var(--type-subtitle); font-weight: var(--weight-semibold); text-decoration: none; letter-spacing: -0.02em; }
.wordmark img { width: 32px; height: 32px; }
nav { display: flex; align-items: center; gap: var(--space-md); font-size: var(--type-small); }
nav a { display: inline-flex; align-items: center; min-height: 44px; text-decoration: none; white-space: nowrap; color: var(--muted); }
nav a:hover { color: var(--ink); text-decoration: none; }
nav .nav-cta { color: var(--ink); font-weight: var(--weight-medium); }

.hero { display: flex; flex-direction: column; align-items: center; text-align: center; padding-block: 96px var(--space-xl); }
.lead { max-width: 620px; margin-top: var(--space-md); font-size: var(--type-lead); line-height: 1.5; color: var(--muted); text-wrap: balance; }
.actions { display: flex; gap: var(--space-sm); align-items: center; flex-wrap: wrap; margin-top: var(--space-lg); }
.hero .actions { justify-content: center; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: var(--space-sm); min-height: 52px; padding: 12px 26px; border-radius: var(--radius-control); font-weight: var(--weight-medium); text-decoration: none; border: 1px solid transparent; }
.primary { background: var(--btn-bg); color: var(--btn-fg); }
.primary:hover { background: var(--btn-hover-bg); text-decoration: none; }
.secondary { border-color: var(--line); color: var(--ink); }
.secondary:hover { border-color: var(--muted); text-decoration: none; }
.text-link { display: inline-flex; align-items: center; gap: var(--space-xs); min-height: 44px; }
.hero-note { margin-top: var(--space-md); text-wrap: balance; }

.shot { position: relative; max-width: 1280px; }
.shot::before { content: ""; position: absolute; inset: -6% 8% auto; height: 70%; z-index: -1; background: radial-gradient(closest-side, rgb(185 255 102 / 0.12), transparent); pointer-events: none; }
.shot-img { display: block; width: 100%; height: auto; border-radius: var(--radius-shot); border: 1px solid var(--line); box-shadow: 0 40px 120px -30px rgb(0 0 0 / 0.55); animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(28px); } }
@media (prefers-reduced-motion: reduce) { .shot-img { animation: none; } html { scroll-behavior: auto; } }

.section { padding-block: var(--space-section) 0; }
.section-heading { max-width: 640px; }
.section-heading > p:not(.eyebrow) { margin-top: var(--space-md); color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); margin-top: var(--space-xl); }
.steps li { border-top: 1px solid var(--line); padding-top: var(--space-md); }
.step { display: block; margin-bottom: var(--space-md); color: var(--muted); font-size: var(--type-small); font-variant-numeric: tabular-nums; }
.steps p { color: var(--muted); margin-top: var(--space-sm); }

.row { display: grid; grid-template-columns: 460px minmax(0, 1fr); align-items: center; gap: var(--space-xl); margin-top: var(--space-xl); }
.row-graph { grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr); }
.row-copy p { margin-top: var(--space-sm); color: var(--muted); max-width: 440px; }
.crop { position: relative; overflow: hidden; border-radius: var(--radius-shot); border: 1px solid var(--line); background: var(--surface); }
.crop img { position: absolute; top: 0; left: 0; display: block; max-width: none; height: auto; }
.crop-sidebar { aspect-ratio: 460 / 600; width: 100%; }
.crop-sidebar img { width: 434.8%; }
.crop-graph { aspect-ratio: 760 / 900; }
.crop-graph img { width: 263%; transform: translate(-24%, -20.2%); }

.feature-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); margin-top: var(--space-xl); }
.feature-list > div { border-top: 1px solid var(--line); padding-top: var(--space-md); }
.feature-list dd { color: var(--muted); margin-top: var(--space-sm); }
.section > .text-link { margin-top: var(--space-lg); }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-lg); margin-top: var(--space-xl); }
.stats > div { border-top: 1px solid var(--line); padding-top: var(--space-md); }
.stats dt { font-size: var(--type-small); color: var(--muted); font-weight: var(--weight-medium); }
.stats .num { margin-block: var(--space-xs) var(--space-sm); font-size: var(--type-title); line-height: var(--lh-heading); letter-spacing: -0.025em; font-weight: var(--weight-semibold); font-variant-numeric: tabular-nums; }
.stats dd:not(.num) { color: var(--muted); font-size: var(--type-small); line-height: var(--lh-body); }
.stats-note { margin-top: var(--space-lg); max-width: 640px; }

.download-section { margin-top: var(--space-section); padding-block: var(--space-section); background: var(--surface); }
.download-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.download-section .section-heading > p:not(.eyebrow), .download-section .eyebrow, .download-section .quiet, #release-detail { color: var(--muted); }
.download-section .eyebrow { margin-bottom: var(--space-md); }
.download-section .section-heading .text-link { margin-top: var(--space-sm); }
.download-picker { min-width: 0; }
.chooser { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); }
label { display: block; font-size: var(--type-small); font-weight: var(--weight-medium); margin-bottom: var(--space-xs); }
select { display: block; width: 100%; min-height: 48px; padding: 10px 28px 10px 12px; border: 1px solid var(--muted); border-radius: var(--radius-control); color: var(--ink); background: var(--bg); }
#platform-hint { margin-top: var(--space-sm); }
#release-status { margin-top: var(--space-lg); }
.status-title { font-size: var(--type-subtitle); line-height: var(--lh-heading); font-weight: var(--weight-medium); }
#release-detail { margin-top: var(--space-xs); }
.release-version { margin-top: var(--space-md); font-weight: var(--weight-medium); overflow-wrap: anywhere; }
.download-actions { margin-top: var(--space-sm); gap: var(--space-sm); }
.version-link { margin-top: var(--space-xs); }
.text-button { border: 0; padding: 8px 0; background: transparent; color: var(--ink); cursor: pointer; min-height: 44px; margin-top: var(--space-xs); text-decoration: underline; text-underline-offset: 4px; }
.text-button:disabled { color: var(--muted); cursor: wait; }
.fallback-links { display: flex; gap: var(--space-md); flex-wrap: wrap; margin-top: var(--space-md); padding-top: var(--space-sm); border-top: 1px solid var(--line); }

.site-footer { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-md); padding-block: var(--space-lg); }
.site-footer > p { font-size: var(--type-small); color: var(--muted); }
.site-footer nav { margin-left: auto; }

@media (max-width: 1000px) {
  :root { --type-hero: 68px; --type-title: 36px; --space-section: 96px; }
  .row, .row-graph { grid-template-columns: 1fr; gap: var(--space-lg); }
  .crop-sidebar { max-width: 460px; }
  .row-graph .row-copy { order: -1; }
  .download-layout { gap: var(--space-lg); }
  .chooser { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  :root { --type-hero: 46px; --type-title: 30px; --type-subtitle: 20px; --type-lead: 18px; --space-section: 80px; --space-xl: 48px; --space-lg: 32px; }
  .wrap { width: calc(100% - 40px); }
  .nav-extra { display: none; }
  .hero { padding-block: 56px var(--space-lg); }
  .hero .actions { width: 100%; }
  .hero .button { flex: 1 1 100%; }
  .shot { width: 100%; }
  .shot .shot-img { border-radius: 0; border-inline: 0; aspect-ratio: 5 / 6; object-fit: cover; object-position: 0 0; }
  .steps, .feature-list, .stats { grid-template-columns: 1fr; gap: var(--space-lg); }
  .download-layout { grid-template-columns: 1fr; }
  .site-footer { align-items: start; gap: var(--space-xs) var(--space-sm); }
  .site-footer nav { margin-left: 0; width: 100%; }
}