:root {
  --ink: #101318;
  --paper: #f5f6f8;
  --white: #fff;
  --muted: #59616d;
  --line: rgba(16,19,24,.12);
  --accent: #6b98ff;
  --accent-soft: #e8efff;
  --max: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; -webkit-font-smoothing: antialiased; }
body.screenshot { --accent: #51c96c; --accent-soft: #e4f8df; }
body.pdf { --accent: #6557e8; --accent-soft: #ece9ff; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.skip-link { position: fixed; left: 12px; top: 12px; z-index: 100; transform: translateY(-150%); padding: 12px 16px; background: var(--ink); color: var(--white); border-radius: 10px; }
.skip-link:focus { transform: none; }
.product-header { position: fixed; z-index: 50; top: 14px; left: 50%; width: min(calc(100% - 28px), var(--max)); min-height: 66px; padding: 8px 10px 8px 14px; display: flex; align-items: center; gap: 18px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.9); backdrop-filter: blur(18px); box-shadow: 0 12px 40px rgba(37,49,69,.08); transform: translateX(-50%); }
.back-link { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.product-brand { display: flex; align-items: center; gap: 9px; margin-right: auto; padding-left: 18px; border-left: 1px solid var(--line); font-weight: 760; }
.product-brand img { width: 34px; height: 34px; border-radius: 9px; object-fit: cover; box-shadow: 0 5px 14px rgba(0,0,0,.12); }
.product-nav { display: flex; gap: 23px; color: var(--muted); font-size: 12px; }
.product-nav a:hover { color: var(--ink); }
.language-switch { display: inline-flex; padding: 3px; border: 1px solid var(--line); border-radius: 10px; background: #f1f3f6; }
.language-switch button { min-width: 35px; padding: 7px 8px; border: 0; border-radius: 7px; background: transparent; color: #717985; cursor: pointer; font-size: 11px; font-weight: 760; }
.language-switch button.is-active { background: var(--white); color: var(--ink); box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.header-store { padding: 12px 15px; border-radius: 11px; background: var(--ink); color: var(--white); font-size: 12px; font-weight: 720; }
.hero { position: relative; min-height: 860px; padding: 150px max(24px, calc((100vw - var(--max))/2)) 90px; display: grid; grid-template-columns: .84fr 1.16fr; gap: 70px; align-items: center; overflow: hidden; background: linear-gradient(135deg, #fff 0%, var(--accent-soft) 100%); }
.hero::before { content: ""; position: absolute; width: 520px; height: 520px; right: -180px; top: 80px; border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); border-radius: 50%; box-shadow: 0 0 0 90px color-mix(in srgb, var(--accent) 5%, transparent), 0 0 0 180px color-mix(in srgb, var(--accent) 3%, transparent); }
.hero-copy, .hero-media { position: relative; z-index: 2; }
.product-label { margin: 0 0 24px; color: #59626e; text-transform: uppercase; letter-spacing: .17em; font-size: 10px; font-weight: 800; }
.hero h1 { margin: 0; font-size: clamp(64px, 7.4vw, 112px); line-height: .88; letter-spacing: -.075em; }
.hero-lead { max-width: 560px; margin: 34px 0 28px; color: #424a55; font-size: clamp(18px, 1.7vw, 23px); line-height: 1.5; letter-spacing: -.025em; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.hero-points span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.68); color: #4c5560; font-size: 11px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; align-items: center; }
.primary-button { display: inline-flex; align-items: center; gap: 13px; min-height: 58px; padding: 0 19px; border-radius: 14px; background: var(--ink); color: var(--white); font-size: 13px; font-weight: 760; box-shadow: 0 18px 35px rgba(16,19,24,.16); }
.primary-button small { display: block; color: #bfc4cb; font-size: 9px; font-weight: 500; margin-top: 2px; }
.secondary-link { padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 12px; font-weight: 720; }
.store-symbol { width: 23px; height: 23px; display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.store-symbol i { background: currentColor; }
.hero-media { min-width: 0; }
.interface-frame { overflow: hidden; border: 1px solid rgba(16,19,24,.18); border-radius: 20px; background: #e7ebf0; box-shadow: 0 42px 90px rgba(37,49,69,.23); transform: rotate(1.2deg); }
.interface-frame img { width: 100%; }
.media-note { position: absolute; z-index: 3; padding: 12px 15px; border-radius: 12px; background: var(--white); box-shadow: 0 15px 35px rgba(37,49,69,.16); font-size: 11px; font-weight: 740; }
.media-note.top { top: -22px; right: 28px; }
.media-note.bottom { left: -28px; bottom: 34px; }
.facts { display: grid; grid-template-columns: repeat(3,1fr); background: var(--ink); color: var(--white); }
.fact { padding: 30px max(24px, calc((100vw - var(--max))/6)); border-right: 1px solid rgba(255,255,255,.14); text-align: center; }
.fact:last-child { border: 0; }
.fact strong { display: block; margin-bottom: 6px; font-size: 14px; }
.fact span { color: #aeb5bf; font-size: 11px; }
.section { padding: 115px max(24px, calc((100vw - var(--max))/2)); }
.section.white { background: var(--white); }
.section-heading { display: grid; grid-template-columns: .5fr 1.5fr .7fr; gap: 40px; align-items: end; margin-bottom: 65px; }
.section-index { color: #737b86; text-transform: uppercase; letter-spacing: .16em; font-size: 10px; font-weight: 800; }
.section-heading h2 { margin: 0; max-width: 700px; font-size: clamp(42px, 5vw, 70px); line-height: .98; letter-spacing: -.06em; }
.section-heading p { margin: 0; color: var(--muted); line-height: 1.6; }
.story { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; margin-bottom: 110px; }
.story:last-child { margin: 0; }
.story.reverse .story-copy { order: 2; }
.story-copy h3 { margin: 0 0 20px; font-size: clamp(31px, 4vw, 52px); line-height: 1; letter-spacing: -.05em; }
.story-copy p { margin: 0 0 24px; color: var(--muted); font-size: 17px; line-height: 1.65; }
.bullet-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.bullet-list li { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.story-media { padding: 28px; border-radius: 28px; background: var(--accent-soft); }
.story-media img { border-radius: 15px; box-shadow: 0 25px 55px rgba(37,49,69,.19); }
.feature-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; }
.feature-card { min-height: 215px; padding: 28px; border: 1px solid var(--line); border-radius: 22px; background: var(--white); }
.feature-card span { display: inline-grid; width: 38px; height: 38px; margin-bottom: 33px; place-items: center; border-radius: 11px; background: var(--accent-soft); color: color-mix(in srgb, var(--accent) 75%, #000); font-weight: 800; }
.feature-card h3 { margin: 0 0 11px; font-size: 20px; letter-spacing: -.03em; }
.feature-card p { margin: 0; color: var(--muted); line-height: 1.55; font-size: 13px; }
.license-panel { padding: 45px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 70px; border-radius: 30px; background: var(--accent-soft); }
.license-panel h2 { margin: 0; font-size: clamp(36px, 4vw, 58px); line-height: 1; letter-spacing: -.055em; }
.license-panel p { margin: 0 0 18px; color: #47505a; line-height: 1.65; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 24px 4px; cursor: pointer; font-size: 18px; font-weight: 720; list-style: none; }
.faq-list summary::after { content: "+"; float: right; color: var(--accent); font-size: 25px; }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 760px; margin: 0; padding: 0 4px 24px; color: var(--muted); line-height: 1.7; }
.bottom-cta { padding: 120px 24px; text-align: center; background: var(--ink); color: var(--white); }
.bottom-cta h2 { margin: 0 0 20px; font-size: clamp(48px, 7vw, 90px); line-height: .95; letter-spacing: -.07em; }
.bottom-cta p { max-width: 600px; margin: 0 auto 32px; color: #adb4be; line-height: 1.6; }
.bottom-cta .primary-button { background: var(--white); color: var(--ink); }
.bottom-cta .primary-button small { color: #666e78; }
.product-footer { padding: 34px max(24px, calc((100vw - var(--max))/2)); display: flex; justify-content: space-between; background: #08090b; color: #858c96; font-size: 11px; }
.product-footer a:hover { color: var(--white); }
@media (max-width: 900px) {
  .product-nav { display: none; }
  .hero { min-height: auto; padding-top: 130px; grid-template-columns: 1fr; }
  .hero-copy { max-width: 680px; }
  .facts { grid-template-columns: 1fr; }
  .fact { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.14); }
  .section-heading { grid-template-columns: 1fr; gap: 17px; }
  .story { grid-template-columns: 1fr; gap: 40px; }
  .story.reverse .story-copy { order: initial; }
  .feature-grid { grid-template-columns: repeat(2,1fr); }
  .license-panel { grid-template-columns: 1fr; gap: 30px; }
}
@media (max-width: 620px) {
  .product-header { top: 8px; width: calc(100% - 16px); min-height: 58px; gap: 9px; border-radius: 15px; }
  .back-link span { display: none; }
  .product-brand { padding-left: 9px; font-size: 12px; }
  .product-brand img { width: 29px; height: 29px; }
  .header-store { display: none; }
  .language-switch button { min-width: 31px; padding: 6px; }
  .hero { padding: 115px 18px 70px; gap: 45px; }
  .hero h1 { font-size: 58px; }
  .hero-lead { font-size: 17px; }
  .interface-frame { border-radius: 13px; }
  .media-note { display: none; }
  .section { padding: 80px 18px; }
  .section-heading h2 { font-size: 43px; }
  .story { margin-bottom: 75px; }
  .story-media { padding: 15px; border-radius: 20px; }
  .feature-grid { grid-template-columns: 1fr; }
  .license-panel { padding: 28px 22px; }
  .bottom-cta { padding: 90px 18px; }
  .product-footer { align-items: flex-start; flex-direction: column; gap: 10px; }
}