:root {
  --page: #0B0D12; --surface: #12151D; --elevated: #171B25;
  --ink: #E9EDF5; --ink2: #B3BBCB; --muted: #79839B;
  --accent: #89CFF0; --accent-soft: #C9E9FB; --deep: #3987E5;
  --border: rgba(148, 163, 199, 0.12);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; background: var(--page); color: var(--ink);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, system-ui, sans-serif;
  background-image: radial-gradient(60rem 36rem at 70% -10%, rgba(137, 207, 240, 0.12), transparent 70%);
  background-repeat: no-repeat;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }

header.top { display: flex; align-items: center; justify-content: space-between; padding-top: 22px; padding-bottom: 22px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 650; font-size: 19px; letter-spacing: 0.01em; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
nav.top a { color: var(--ink2); margin-left: 22px; font-size: 15px; }

.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: center; padding: 56px 0 72px; }
.hero h1 { font-size: clamp(38px, 6vw, 60px); line-height: 1.05; margin: 0 0 18px; letter-spacing: -0.02em; font-weight: 700; }
.hero h1 span { color: var(--accent); }
.hero p.lead { font-size: 20px; color: var(--ink2); margin: 0 0 28px; max-width: 30em; }
.hero .icon { justify-self: center; width: min(320px, 70vw); height: auto; aspect-ratio: 1; border-radius: 22.5%;
  box-shadow: 0 30px 80px rgba(57, 135, 229, 0.25), 0 0 0 1px var(--border); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 12px 20px; border-radius: 999px; font-weight: 600; font-size: 16px; }
.pill.solid { background: var(--accent); color: #07131C; }
.pill.ghost { border: 1px solid var(--border); color: var(--ink); background: var(--surface); }
.pill:hover { text-decoration: none; filter: brightness(1.08); }
.note { color: var(--muted); font-size: 14px; margin-top: 14px; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; padding-bottom: 72px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 22px 22px 18px; }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--ink2); font-size: 16px; }
.card .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); margin-bottom: 14px; }
.card:nth-child(3n+2) .dot { background: var(--deep); }
.card:nth-child(3n) .dot { background: var(--accent-soft); }

.doc { max-width: 720px; padding: 32px 0 72px; }
.doc h1 { font-size: 40px; margin: 0 0 8px; letter-spacing: -0.015em; }
.doc .sub { color: var(--ink2); font-size: 19px; margin: 0 0 32px; }
.doc h2 { font-size: 22px; margin: 36px 0 8px; }
.doc p, .doc li { color: var(--ink2); }
.doc strong { color: var(--ink); }
.contact { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 22px; margin-bottom: 8px; }
.contact p { margin: 0 0 6px; }
.contact .mail { font-size: 21px; font-weight: 600; }
details { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 14px 18px; margin: 10px 0; }
details summary { cursor: pointer; font-weight: 600; color: var(--ink); }
details p { margin: 10px 0 2px; }

footer { border-top: 1px solid var(--border); padding: 26px 0 40px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 22px; justify-content: space-between; }
footer a { color: var(--ink2); margin-right: 18px; }

@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding-top: 24px; text-align: left; }
  .hero .icon { order: -1; width: 168px; justify-self: start; }
  nav.top a { margin-left: 14px; }
}