:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI Variable Text", "Segoe UI", Helvetica, Arial, sans-serif;
  color: #202329;
  background: #f7f8fa;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  --navy: #1b2232;
  --red: #bc2026;
  --gray: #a9b2bc;
  --blue: #2a5fd7;
  --blue-hover: #2459dc;
  --blue-soft: #e7eeff;
  --canvas: #f7f8fa;
  --surface: #ffffff;
  --cool: #eef0f3;
  --stage: #e4e7eb;
  --text: #202329;
  --muted: #626872;
  --soft: #858b95;
  --border: #d8dce2;
  --border-strong: #bfc5ce;
  --success: #167a55;
  --warning: #a45c00;
  --shell: min(1120px, calc(100% - 48px));
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { min-width: 320px; min-height: 100vh; margin: 0; overflow-x: hidden; background: var(--canvas); }
body, button, a { font: inherit; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
button, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(42, 95, 215, .35); outline-offset: 3px; }
.shell { width: var(--shell); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 8px; left: 8px; padding: 10px 14px; color: #fff; background: var(--blue); transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: sticky; z-index: 100; top: 0; border-bottom: 1px solid rgba(216, 220, 226, .9); background: rgba(255, 255, 255, .96); backdrop-filter: blur(12px); }
.header-inner { display: flex; min-height: 68px; align-items: center; justify-content: space-between; gap: 28px; }
.brand { width: 198px; text-decoration: none; }
.site-nav { display: flex; align-items: center; gap: 28px; color: #505660; font-size: 14px; font-weight: 650; }
.site-nav a { text-decoration: none; }
.site-nav a:hover { color: var(--blue); }
.site-nav .nav-download { padding: 10px 15px; border-radius: 6px; color: #fff; background: var(--blue); }
.site-nav .nav-download:hover { color: #fff; background: var(--blue-hover); }
.nav-toggle { display: none; width: 44px; height: 44px; padding: 10px; border: 1px solid var(--border); border-radius: 6px; background: #fff; }
.nav-toggle span:not(.sr-only) { display: block; width: 100%; height: 2px; margin: 4px 0; background: var(--navy); }

.button { display: inline-flex; min-height: 46px; padding: 12px 18px; align-items: center; justify-content: center; gap: 10px; border: 1px solid transparent; border-radius: 6px; font-size: 14px; font-weight: 700; line-height: 1; text-decoration: none; transition: background-color .16s ease, border-color .16s ease, color .16s ease, transform .16s ease; }
.button:active { transform: translateY(1px); }
.button svg { width: 18px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.button-primary { color: #fff; background: var(--blue); }
.button-primary:hover { background: var(--blue-hover); }
.button-secondary { border-color: var(--border-strong); color: var(--navy); background: #fff; }
.button-secondary:hover { border-color: #8d97a4; background: #f5f6f8; }
.button-light { color: var(--navy); background: #fff; }
.button-light:hover { background: var(--cool); }
.button.is-disabled, .button[aria-disabled="true"] { cursor: not-allowed; opacity: .55; pointer-events: none; }
.text-action { display: inline-flex; min-height: 44px; align-items: center; gap: 8px; color: var(--blue); font-size: 14px; font-weight: 700; text-decoration: none; }
.text-action:hover { text-decoration: underline; }

.hero { min-height: calc(100vh - 68px); padding: 58px 0 64px; background: #fff; }
.hero-grid { display: grid; min-height: 600px; grid-template-columns: .82fr 1.18fr; gap: 64px; align-items: center; }
.hero-copy { position: relative; z-index: 1; }
.hero-kicker { display: flex; margin: 0 0 22px; align-items: center; gap: 10px; color: var(--red); font-size: 13px; font-weight: 750; }
.hero-kicker::before { width: 26px; height: 3px; background: var(--red); content: ""; }
.hero h1 { margin: 0; color: var(--navy); font-size: clamp(58px, 6vw, 76px); font-weight: 760; letter-spacing: -.055em; line-height: .95; }
.hero-lead { max-width: 540px; margin: 26px 0 0; color: var(--muted); font-size: 18px; line-height: 1.55; }
.hero-actions { display: flex; margin-top: 34px; align-items: center; flex-wrap: wrap; gap: 22px; }
.hero-visual { margin: 0; }
.hero-visual img { width: 100%; border-radius: 8px; object-fit: cover; object-position: center; box-shadow: 0 24px 60px rgba(27, 34, 50, .16); }
.hero-visual figcaption { margin-top: 12px; color: var(--soft); font-size: 12px; text-align: right; }

.fact-bar { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--canvas); }
.fact-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.fact-grid p { display: grid; min-height: 90px; margin: 0; padding: 20px 24px; align-content: center; gap: 5px; border-left: 1px solid var(--border); }
.fact-grid p:last-child { border-right: 1px solid var(--border); }
.fact-grid strong { color: var(--navy); font-size: 15px; }
.fact-grid span { color: var(--muted); font-size: 12px; }

.section { padding: 94px 0; }
.section h2, .closing-cta h2 { margin: 0; color: var(--navy); font-size: clamp(38px, 4.2vw, 54px); font-weight: 740; letter-spacing: -.045em; line-height: 1.02; }
.section-intro { max-width: 760px; margin-bottom: 46px; }
.section-intro p { max-width: 680px; margin: 20px 0 0; color: var(--muted); font-size: 17px; line-height: 1.65; }
.section-intro.compact { margin-bottom: 38px; }

.product { background: var(--canvas); }
.product-shot { margin: 0; }
.product-shot picture { display: block; overflow: hidden; border: 1px solid var(--border-strong); border-radius: 8px; background: var(--stage); box-shadow: 0 18px 46px rgba(41, 48, 62, .12); }
.product-shot img { width: 100%; }
.product-shot figcaption { margin-top: 13px; color: var(--soft); font-size: 12px; }

.workflow { background: #fff; }
.step-grid { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--border-strong); list-style: none; }
.step-grid li { min-height: 220px; padding: 28px 34px 24px 0; border-right: 1px solid var(--border); }
.step-grid li + li { padding-left: 34px; }
.step-grid li:last-child { border-right: 0; }
.step-grid span { color: var(--red); font-size: 12px; font-weight: 800; }
.step-grid h3 { margin: 42px 0 10px; color: var(--navy); font-size: 26px; letter-spacing: -.025em; }
.step-grid p { max-width: 270px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.65; }

.capabilities { background: var(--cool); }
.capability-grid { display: grid; grid-template-columns: .7fr 1.3fr; gap: 92px; align-items: start; }
.capability-grid > div > p { max-width: 400px; margin: 22px 0 0; color: var(--muted); line-height: 1.7; }
.capability-list { display: grid; margin: 0; grid-template-columns: 1fr 1fr; column-gap: 44px; }
.capability-list > div { min-height: 142px; padding: 24px 0; border-top: 1px solid var(--border-strong); }
.capability-list dt { color: var(--navy); font-size: 17px; font-weight: 720; }
.capability-list dd { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.55; }

.downloads { background: #fff; }
.downloads-heading { display: grid; margin-bottom: 38px; grid-template-columns: 1fr auto; gap: 50px; align-items: end; }
.downloads-heading > div:first-child > p { max-width: 650px; margin: 17px 0 0; color: var(--muted); line-height: 1.6; }
.release-summary { display: inline-flex; min-height: 42px; padding: 10px 13px; align-items: center; gap: 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--muted); background: var(--canvas); font-size: 12px; }
.status-dot { width: 8px; height: 8px; flex: 0 0 auto; border-radius: 50%; background: var(--gray); box-shadow: 0 0 0 4px rgba(169, 178, 188, .18); }
.status-dot.is-ready { background: var(--success); box-shadow: 0 0 0 4px rgba(22, 122, 85, .15); }
.status-dot.is-error { background: var(--warning); box-shadow: 0 0 0 4px rgba(164, 92, 0, .14); }
.download-grid { border-top: 1px solid var(--border-strong); }
.download-row { display: grid; min-height: 118px; padding: 23px 0; grid-template-columns: 54px 1fr auto; gap: 20px; align-items: center; border-bottom: 1px solid var(--border); }
.platform-mark { display: grid; width: 44px; height: 44px; place-items: center; border: 1px solid var(--border-strong); border-radius: 6px; color: var(--navy); background: var(--canvas); font-size: 16px; font-weight: 800; }
.windows-mark { grid-template-columns: repeat(2, 8px); grid-template-rows: repeat(2, 8px); gap: 2px; }
.windows-mark i { width: 8px; height: 8px; background: currentColor; }
.download-copy h3 { display: inline; margin: 0; color: var(--navy); font-size: 19px; }
.download-copy p { display: inline; margin: 0 0 0 11px; color: var(--muted); font-size: 13px; }
.download-copy code, .platform-table code { font-size: .9em; }
.download-meta { display: block; margin-top: 7px; color: var(--soft); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10px; }
.download-button { min-width: 150px; }
.download-notice { margin-top: 24px; padding: 17px 19px; border-left: 3px solid var(--warning); background: #fff8ec; }
.download-notice strong { color: #7c4800; }
.download-notice p { margin: 6px 0 0; color: #735f44; font-size: 13px; line-height: 1.5; }
.integrity-row { display: flex; margin-top: 28px; align-items: center; justify-content: space-between; gap: 30px; }
.integrity-row p { max-width: 650px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.55; }
.integrity-row > div { display: flex; gap: 20px; }
.integrity-row a, .platform-copy a, .privacy-grid a { color: var(--blue); font-size: 13px; font-weight: 720; text-decoration: none; }
.integrity-row a:hover, .platform-copy a:hover, .privacy-grid a:hover { text-decoration: underline; }

.platform { color: #fff; background: var(--navy); }
.platform h2 { color: #fff; }
.platform-grid { display: grid; grid-template-columns: .72fr 1.28fr; gap: 88px; align-items: center; }
.platform-copy p { max-width: 410px; margin: 22px 0 24px; color: #bdc4ce; line-height: 1.7; }
.platform-copy a { color: #8fadff; }
.platform-table { border-top: 1px solid rgba(255, 255, 255, .2); }
.platform-table [role="row"] { display: grid; min-height: 74px; padding: 14px 0; grid-template-columns: 135px 1fr 78px; gap: 18px; align-items: center; border-bottom: 1px solid rgba(255, 255, 255, .16); }
.platform-table strong { font-size: 13px; }
.platform-table span { color: #bec5cf; font-size: 12px; line-height: 1.45; }
.platform-table i { color: #7be2b4; font-size: 10px; font-style: normal; font-weight: 800; letter-spacing: .06em; text-align: right; text-transform: uppercase; }
.platform-table i.limited { color: #ffca75; }

.privacy { background: #fff; }
.privacy-grid { display: grid; grid-template-columns: 150px 1fr; gap: 55px; align-items: center; }
.privacy-grid > img { width: 128px; }
.privacy-grid p { max-width: 720px; margin: 20px 0 22px; color: var(--muted); font-size: 17px; line-height: 1.65; }

.donation { background: var(--blue-soft); }
.donation-inner { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: center; }
.donation-inner h2 { font-size: clamp(36px, 4vw, 50px); }
.donation-inner p { max-width: 700px; margin: 17px 0 0; color: #455574; line-height: 1.65; }

.faq { background: var(--canvas); }
.faq-grid { display: grid; grid-template-columns: .55fr 1.45fr; gap: 88px; align-items: start; }
.faq-list { border-top: 1px solid var(--border-strong); }
.faq-list details { border-bottom: 1px solid var(--border); }
.faq-list summary { position: relative; padding: 22px 42px 22px 0; cursor: pointer; color: var(--navy); font-size: 16px; font-weight: 700; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; top: 19px; right: 4px; color: var(--blue); content: "+"; font-size: 22px; font-weight: 400; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { margin: -3px 0 22px; padding-right: 45px; color: var(--muted); font-size: 14px; line-height: 1.65; }

.closing-cta { padding: 62px 0; color: #fff; background: var(--navy); }
.closing-inner { display: flex; align-items: center; justify-content: space-between; gap: 50px; }
.closing-cta h2 { color: #fff; font-size: clamp(34px, 4vw, 48px); }
.closing-cta p { margin: 10px 0 0; color: #aeb6c2; }

.site-footer { color: #d1d6df; background: #121723; }
.footer-main { display: grid; padding: 58px 0 42px; grid-template-columns: 1.6fr repeat(3, .8fr); gap: 55px; }
.footer-brand img { width: 198px; }
.footer-brand p { max-width: 280px; margin: 16px 0 0; color: #929aa7; font-size: 12px; line-height: 1.55; }
.footer-links { display: grid; align-content: start; gap: 10px; }
.footer-links strong { margin-bottom: 4px; color: #fff; font-size: 12px; }
.footer-links a { color: #aeb5c0; font-size: 12px; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom { display: flex; padding: 21px 0 25px; justify-content: space-between; border-top: 1px solid rgba(255, 255, 255, .1); color: #7f8794; font-size: 10px; }

.eyebrow { display: flex; margin: 0; align-items: center; gap: 10px; color: var(--red); font-size: 12px; font-weight: 750; }
.eyebrow > span { width: 24px; height: 2px; background: currentColor; }
.content-page { min-height: 70vh; padding: 78px 0 105px; background: #fff; }
.content-shell { width: min(820px, calc(100% - 48px)); margin: 0 auto; }
.content-page .eyebrow { margin-bottom: 20px; }
.content-page h1 { max-width: 780px; margin: 0; color: var(--navy); font-size: clamp(44px, 6vw, 66px); font-weight: 740; letter-spacing: -.045em; line-height: 1; }
.content-lead { margin: 24px 0 0; color: var(--muted); font-size: 18px; line-height: 1.65; }
.content-body { margin-top: 54px; }
.content-body h2 { margin: 46px 0 13px; color: var(--navy); font-size: 26px; letter-spacing: -.03em; }
.content-body h3 { margin: 28px 0 10px; color: var(--navy); font-size: 17px; }
.content-body p, .content-body li { color: var(--muted); line-height: 1.72; }
.content-body a { color: var(--blue); }
.content-body code { padding: 2px 5px; border-radius: 3px; background: var(--cool); font-size: .9em; }
.content-body .callout { margin: 28px 0; padding: 18px 20px; border-left: 3px solid var(--blue); background: var(--blue-soft); }
.content-body .callout p { margin: 0; color: #334b79; }
.content-body .ledger { margin-top: 24px; border-top: 1px solid var(--border); }
.content-body .ledger > div { display: grid; padding: 18px 0; grid-template-columns: 180px 1fr; gap: 24px; border-bottom: 1px solid var(--border); }
.content-body .ledger strong { color: var(--navy); }
.content-body .ledger p { margin: 0; }
.content-cta { display: flex; margin-top: 40px; flex-wrap: wrap; gap: 12px; }

@media (max-width: 1040px) {
  .hero { min-height: auto; }
  .hero-grid { min-height: 0; grid-template-columns: .9fr 1.1fr; gap: 38px; }
  .hero h1 { font-size: clamp(53px, 6.4vw, 68px); }
  .capability-grid, .platform-grid { gap: 54px; }
  .footer-main { gap: 34px; }
}

@media (max-width: 820px) {
  :root { --shell: min(100% - 32px, 680px); }
  .site-header { backdrop-filter: none; }
  .header-inner { min-height: 64px; }
  .brand { width: 182px; }
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 64px; right: 0; left: 0; display: none; padding: 15px 16px 20px; align-items: stretch; flex-direction: column; gap: 0; border-bottom: 1px solid var(--border); background: #fff; }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 13px 8px; }
  .site-nav .nav-download { margin-top: 7px; text-align: center; }
  .hero { padding: 58px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 46px; }
  .hero-copy { max-width: 650px; }
  .hero h1 { font-size: clamp(52px, 12vw, 70px); }
  .hero-visual { width: 100%; }
  .fact-grid { grid-template-columns: 1fr 1fr; }
  .fact-grid p:nth-child(2) { border-right: 1px solid var(--border); }
  .fact-grid p:nth-child(-n + 2) { border-bottom: 1px solid var(--border); }
  .section { padding: 78px 0; }
  .step-grid { grid-template-columns: 1fr; }
  .step-grid li, .step-grid li + li { min-height: 0; padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--border); }
  .step-grid li:last-child { border-bottom: 0; }
  .step-grid h3 { margin-top: 20px; }
  .step-grid p { max-width: 540px; }
  .capability-grid, .platform-grid { grid-template-columns: 1fr; gap: 44px; }
  .downloads-heading { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .release-summary { justify-self: start; }
  .privacy-grid { grid-template-columns: 110px 1fr; gap: 35px; }
  .privacy-grid > img { width: 100px; }
  .donation-inner { grid-template-columns: 1fr; gap: 28px; }
  .donation-inner .button { justify-self: start; }
  .faq-grid { grid-template-columns: 1fr; gap: 38px; }
  .closing-inner { align-items: flex-start; flex-direction: column; }
  .footer-main { grid-template-columns: 1.5fr 1fr 1fr; }
  .footer-main > div:last-child { grid-column: 2; }
}

@media (max-width: 560px) {
  :root { --shell: calc(100% - 28px); }
  .hero { padding: 48px 0 52px; }
  .hero-kicker { margin-bottom: 18px; }
  .hero h1 { font-size: clamp(47px, 14.5vw, 60px); }
  .hero-lead { margin-top: 22px; font-size: 16px; }
  .hero-actions { display: grid; margin-top: 28px; gap: 8px; }
  .hero-actions .button { width: 100%; }
  .text-action { justify-self: center; }
  .hero-visual img { width: 100%; }
  .hero-visual figcaption { text-align: left; }
  .fact-grid p { min-height: 80px; padding: 17px 16px; }
  .section { padding: 66px 0; }
  .section h2, .closing-cta h2 { font-size: 38px; }
  .section-intro { margin-bottom: 34px; }
  .section-intro p { font-size: 15px; }
  .product-shot picture { border-radius: 6px; }
  .capability-list { grid-template-columns: 1fr; }
  .capability-list > div { min-height: 0; }
  .download-row { grid-template-columns: 46px 1fr; gap: 13px; }
  .download-row .download-button { grid-column: 2; width: 100%; }
  .download-copy h3, .download-copy p { display: block; }
  .download-copy p { margin: 5px 0 0; }
  .integrity-row { align-items: flex-start; flex-direction: column; }
  .platform-table [role="row"] { grid-template-columns: 1fr auto; gap: 7px; }
  .platform-table span { grid-column: 1 / -1; grid-row: 2; }
  .privacy-grid { grid-template-columns: 1fr; }
  .privacy-grid > img { width: 92px; }
  .donation-inner .button { width: 100%; }
  .closing-cta { padding: 52px 0; }
  .closing-inner .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 38px 24px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-main > div:last-child { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; gap: 7px; }
  .content-page { padding-top: 62px; }
  .content-shell { width: calc(100% - 32px); }
  .content-body .ledger > div { grid-template-columns: 1fr; gap: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
