:root {
  color-scheme: light dark;
  --bg: #f7f9fc;
  --surface: #ffffff;
  --ink: #101828;
  --muted: #55627a;
  --line: #dfe5ee;
  --brand: #2f7bf6;
  --brand-ink: #1f55c9;
  --on-brand: #ffffff;
  --hero: linear-gradient(135deg, #38c8ff 0%, #2f7bf6 52%, #2442d8 100%);
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c111b;
    --surface: #141b28;
    --ink: #eef2f8;
    --muted: #9aa8bf;
    --line: #263145;
    --brand: #4c91fa;
    --brand-ink: #8dbaff;
    --on-brand: #06122b;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--brand-ink); }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; }
h1 { font-size: clamp(2.3rem, 5vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 650; letter-spacing: -0.01em; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 12px; z-index: 20; background: var(--surface); padding: 8px 12px; }

.top { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 60px; padding: 0 max(20px, calc(50% - 560px)); background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 9px; color: inherit; font-weight: 700; letter-spacing: -0.01em; text-decoration: none; }
.top nav { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--ink); }
#lang { font: inherit; font-size: 13px; font-weight: 600; color: var(--ink); background: none; border: 1px solid var(--line); border-radius: 8px; padding: 3px 9px; cursor: pointer; }

main > section { padding: 80px max(20px, calc(50% - 560px)); }

.hero { display: grid; gap: 44px; padding-top: 72px !important; text-align: center; justify-items: center; }
.hero-copy { max-width: 760px; }
.lede { margin-top: 18px; font-size: 1.15rem; color: var(--muted); text-wrap: pretty; }
.cta { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 30px; }
.cta-note { font-size: 15px; color: var(--muted); min-height: 1.6em; }
.fine { margin-top: 14px; font-size: 14px; color: var(--muted); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 8px 16px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); font-size: 15px; font-weight: 600; text-decoration: none; transition: border-color .15s, background-color .15s, transform .15s; }
.button:hover { border-color: var(--brand); }
.button:active { transform: translateY(1px); }
.button.primary { background: var(--brand); border-color: var(--brand); color: var(--on-brand); min-height: 52px; padding: 12px 26px; font-size: 17px; }
.button.primary:hover { background: var(--brand-ink); border-color: var(--brand-ink); }
@media (prefers-color-scheme: dark) { .button.primary:hover { background: #6aa6fb; border-color: #6aa6fb; } }
.button small { font-weight: 500; opacity: .75; }
.stage { width: 100%; max-width: 980px; margin: 0; }
.stage img { width: 100%; border-radius: var(--radius); box-shadow: 0 24px 60px -24px rgba(36, 66, 216, .5); }
.stage figcaption { margin-top: 12px; font-size: 13px; color: var(--muted); }

.features h2, .trust h2, .faq h2 { max-width: 640px; }
.features ul { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px 40px; margin: 40px 0 0; padding: 0; list-style: none; }
.features li { padding-top: 16px; border-top: 2px solid var(--brand); }
.features li p { margin-top: 8px; font-size: 16px; color: var(--muted); }

.download { background: var(--surface); border-block: 1px solid var(--line); }
.download-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px 24px; flex-wrap: wrap; }
#release-state { color: var(--muted); font-size: 15px; }
#release-state.waiting { color: var(--ink); font-weight: 600; }
.choose { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 40px; margin-top: 26px; }
.choose p { margin-top: 4px; font-size: 16px; color: var(--muted); }
table { width: 100%; margin-top: 26px; border-collapse: collapse; }
th { text-align: left; font-size: 13px; font-weight: 600; color: var(--muted); padding: 0 12px 10px 0; }
td { padding: 12px 12px 12px 0; border-top: 1px solid var(--line); vertical-align: middle; }
tr.mine td { background: color-mix(in srgb, var(--brand) 9%, transparent); }
tr.mine td:first-child { box-shadow: -14px 0 0 color-mix(in srgb, var(--brand) 9%, transparent); }
td .sys { font-weight: 600; }
td .sub { display: block; font-size: 13px; color: var(--muted); }
td .none { font-size: 14px; color: var(--muted); }

.columns { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 56px; margin-top: 34px; }
.columns p, .plain { margin-top: 10px; color: var(--muted); }
.plain { padding: 0; list-style: none; }
.plain li { padding: 7px 0; border-bottom: 1px solid var(--line); }
.plain li:last-child { border-bottom: 0; }

.faq { padding-top: 0 !important; }
.faq h2 { margin-bottom: 22px; }
details { max-width: 760px; border-top: 1px solid var(--line); }
details:last-of-type { border-bottom: 1px solid var(--line); }
summary { padding: 14px 0; font-weight: 600; cursor: pointer; }
details p { padding-bottom: 16px; color: var(--muted); }

.foot { display: flex; justify-content: space-between; gap: 8px 24px; flex-wrap: wrap; padding: 26px max(20px, calc(50% - 560px)); border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }

@media (max-width: 800px) {
  body { font-size: 16px; }
  main > section { padding-block: 56px; }
  .hero { padding-top: 44px !important; }
  .features ul, .choose, .columns { grid-template-columns: 1fr; }
  .top nav { gap: 14px; }
  .top nav a[href="#features"], .top nav a[href="#faq"] { display: none; }
  thead { display: none; }
  table, tbody, tr, td { display: block; width: 100%; }
  tr { padding: 14px 0; border-top: 1px solid var(--line); }
  tr.mine td, tr.mine td:first-child { background: none; box-shadow: none; }
  td { padding: 6px 0; border: 0; }
  td .button { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}