:root {
  --bg: #070d16;
  --bg-soft: #0b1524;
  --panel: #101b2c;
  --panel-2: #152235;
  --line: #1e2f47;
  --text: #e9eff8;
  --muted: #94a5bb;
  --accent: #2e8cfa;
  --accent-soft: rgba(46, 140, 250, 0.14);
  --green: #17b890;
  --radius: 18px;
  --max: 1060px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

img { max-width: 100%; height: auto; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px;
}

.wrap.narrow { max-width: 760px; }

/* Header */
header.site {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 13, 22, 0.9);
  backdrop-filter: saturate(140%) blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
  letter-spacing: -0.01em;
}

.brand img { border-radius: 9px; }

nav { display: flex; align-items: center; gap: 18px; font-size: 14.5px; }

nav a { color: var(--muted); text-decoration: none; }

nav a:hover, nav a.on { color: var(--text); }

nav a.lang {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
}

/* Hero */
.hero { position: relative; overflow: hidden; padding: 76px 0 56px; text-align: center; }

.hero .glow {
  position: absolute;
  inset: -40% 0 auto 50%;
  width: 720px;
  height: 720px;
  transform: translateX(-50%);
  background: radial-gradient(circle at center, rgba(46, 140, 250, 0.22), transparent 62%);
  pointer-events: none;
}

.hero-inner { position: relative; }

.app-icon {
  border-radius: 22px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--green);
  font-size: 12.5px;
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 16px;
  font-size: clamp(34px, 5.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

.lede {
  margin: 0 auto 18px;
  max-width: 620px;
  color: var(--muted);
  font-size: 18px;
}

.meta { color: var(--muted); font-size: 13.5px; margin: 0 0 22px; }

.cta { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 999px;
  box-shadow: 0 10px 26px rgba(46, 140, 250, 0.28);
}

.button:hover { filter: brightness(1.07); }

.quiet-link { color: var(--muted); font-size: 14.5px; }

/* Sections */
section { padding: 44px 0; }

h2 {
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}

h3 { font-size: 17px; margin: 0 0 6px; letter-spacing: -0.01em; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
}

.card p { color: var(--muted); margin: 0; font-size: 14.8px; }

.shot { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--panel); }

/* Documents */
body.doc main { padding: 44px 0 64px; }

body.doc h1 { font-size: clamp(28px, 4vw, 38px); margin-bottom: 6px; }

.updated { color: var(--muted); font-size: 14px; margin: 0 0 26px; }

body.doc h2 { font-size: 20px; margin: 34px 0 8px; }

body.doc p, body.doc li { color: #c8d4e4; }

body.doc ul { padding-left: 20px; }

body.doc li { margin: 6px 0; }

.table { overflow-x: auto; margin: 16px 0; }

table { width: 100%; border-collapse: collapse; font-size: 14.5px; }

th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }

th { color: var(--muted); font-weight: 600; }

.note {
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  padding: 12px 16px;
  border-radius: 0 12px 12px 0;
  margin: 18px 0;
}

.faq { border-top: 1px solid var(--line); padding-top: 18px; margin-top: 18px; }

.faq h3 { margin-top: 22px; }

/* Footer */
footer.site {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 13.5px;
}

footer.site .wrap { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

footer.site a { color: var(--muted); text-decoration: none; }

footer.site a:hover { color: var(--text); }

@media (max-width: 620px) {
  .hero { padding: 52px 0 36px; }
  nav { gap: 12px; }
}