:root {
  --ink: #111827;
  --muted: #667085;
  --line: #e6e8ec;
  --surface: #ffffff;
  --soft: #f7f8fa;
  --accent: #12afe3;
  --accent-dark: #0789b5;
  --mint: #12b76a;
  --violet-soft: #eaf8fd;
  --radius: 18px;
  --shadow: 0 18px 45px rgba(22, 26, 48, 0.08);
  --container: 1180px;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--surface);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); line-height: 1.55; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }

.container { width: min(var(--container), calc(100% - 40px)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid rgba(230,232,236,.9); background: rgba(255,255,255,.92); backdrop-filter: blur(16px); }
.nav { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 750; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px 10px 10px 4px; color: white; background: linear-gradient(135deg, #11b7e8, #51c5c4); font-size: 13px; }
.nav-links { display: flex; align-items: center; gap: 24px; color: #475467; font-size: 14px; }
.nav-links a:hover { color: var(--ink); }
.nav-toggle { display: none; border: 0; background: transparent; font-size: 24px; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 12px; background: white; font-weight: 650; transition: .18s ease; }
.button:hover { transform: translateY(-1px); border-color: #cfd3da; }
.button-primary { color: white; border-color: var(--accent); background: var(--accent); box-shadow: 0 9px 22px rgba(18,175,227,.20); }
.button-primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

.hero { padding: 86px 0 62px; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 58px; align-items: center; }
.eyebrow { display: inline-flex; gap: 8px; align-items: center; margin-bottom: 18px; padding: 7px 10px; border: 1px solid #c9edf8; border-radius: 999px; color: #087ca4; background: var(--violet-soft); font-size: 13px; font-weight: 650; }
h1 { max-width: 760px; margin: 0; font-size: clamp(42px, 6vw, 72px); line-height: .99; letter-spacing: -.055em; }
.hero p { max-width: 680px; margin: 24px 0 28px; color: var(--muted); font-size: 19px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 18px; color: #7a8290; font-size: 13px; }

.product-card { position: relative; padding: 18px; border: 1px solid var(--line); border-radius: 24px; background: #fbfbfc; box-shadow: var(--shadow); }
.app-bar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; color: #69707d; font-size: 12px; }
.dots { display: flex; gap: 5px; }
.dots i { width: 7px; height: 7px; border-radius: 50%; background: #d7dae0; }
.flow { display: grid; gap: 10px; }
.flow-row { display: grid; grid-template-columns: 1fr 38px 1fr; align-items: center; gap: 10px; }
.flow-box { min-height: 104px; padding: 16px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.flow-box small { color: var(--muted); }
.flow-box strong { display: block; margin-top: 8px; font-size: 17px; }
.flow-arrow { color: var(--accent); text-align: center; font-size: 21px; }
.status { display: flex; align-items: center; justify-content: space-between; padding: 13px 15px; border-radius: 13px; background: #eefaf4; color: #087443; font-size: 13px; }
.status b::before { content: ""; display: inline-block; width: 7px; height: 7px; margin-right: 7px; border-radius: 50%; background: var(--mint); }

.section { padding: 76px 0; }
.section-soft { background: var(--soft); }
.section-heading { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 28px; }
.section-heading h2 { max-width: 720px; margin: 0; font-size: clamp(30px, 4vw, 48px); line-height: 1.05; letter-spacing: -.045em; }
.section-heading p { max-width: 480px; margin: 0; color: var(--muted); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.card-icon { display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 22px; border-radius: 11px; color: var(--accent); background: var(--violet-soft); font-weight: 800; }
.card h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -.02em; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; counter-reset: step; }
.step { padding: 20px; border-top: 2px solid var(--line); counter-increment: step; }
.step::before { content: "0" counter(step); display: block; margin-bottom: 24px; color: var(--accent); font-weight: 750; font-size: 13px; }
.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; }

.release-list { display: grid; gap: 10px; }
.release-row { display: grid; grid-template-columns: 130px 1fr auto; gap: 18px; align-items: center; padding: 17px 18px; border: 1px solid var(--line); border-radius: 14px; background: white; }
.release-date { color: var(--muted); font-size: 13px; }
.release-status { padding: 5px 8px; border-radius: 8px; color: #5c5f66; background: #f0f1f3; font-size: 12px; }

.cta { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 28px; padding: 34px; border-radius: 24px; color: white; background: #17172c; }
.cta h2 { margin: 0 0 8px; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.04em; }
.cta p { max-width: 650px; margin: 0; color: #b8bacb; }
.site-footer { padding: 34px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.footer-grid { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }

.page-hero { padding: 58px 0 32px; border-bottom: 1px solid var(--line); }
.page-hero h1 { max-width: 900px; font-size: clamp(38px, 6vw, 62px); }
.page-hero p { max-width: 760px; color: var(--muted); font-size: 17px; }
.docs-layout { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 56px; align-items: start; padding: 46px 0 90px; }
.docs-nav { position: sticky; top: 90px; display: grid; gap: 6px; font-size: 13px; }
.docs-nav b { margin: 0 0 8px; color: var(--ink); }
.docs-nav a { padding: 7px 9px; border-radius: 8px; color: var(--muted); }
.docs-nav a:hover { color: var(--ink); background: var(--soft); }
.doc-content h2 { margin: 52px 0 14px; font-size: 30px; letter-spacing: -.035em; }
.doc-content h2:first-child { margin-top: 0; }
.doc-content h3 { margin: 30px 0 10px; }
.doc-content p, .doc-content li { color: #4f5968; }
.doc-content li + li { margin-top: 7px; }
.notice { margin: 22px 0; padding: 16px 18px; border-left: 3px solid var(--accent); border-radius: 0 12px 12px 0; background: var(--violet-soft); color: #17647d; }
.meta-line { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; color: var(--muted); font-size: 13px; }
.meta-line span { padding: 5px 8px; border-radius: 8px; background: var(--soft); }

@media (max-width: 880px) {
  .hero-grid, .cta { grid-template-columns: 1fr; }
  .hero { padding-top: 58px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-nav { position: static; grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, var(--container)); }
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 66px; left: 0; right: 0; padding: 18px 20px 22px; border-bottom: 1px solid var(--line); background: white; flex-direction: column; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links .button { width: 100%; }
  h1 { font-size: 43px; }
  .section { padding: 58px 0; }
  .section-heading { align-items: start; flex-direction: column; }
  .grid-3, .steps { grid-template-columns: 1fr; }
  .release-row { grid-template-columns: 1fr auto; }
  .release-row strong { grid-column: 1 / -1; }
  .docs-nav { grid-template-columns: 1fr; }
}