:root {
  --bg: #07090f;
  --bg-2: #0d111b;
  --card: #111726;
  --line: #1f2840;
  --text: #e8ecf5;
  --muted: #8d98b3;
  --a1: #6ee7ff;
  --a2: #a78bfa;
  --a3: #34d399;
  --grad: linear-gradient(110deg, var(--a1), var(--a2));
  --radius: 16px;
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  font: 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter, Roboto, sans-serif;
  color: var(--text);
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(167, 139, 250, .16), transparent 60%),
    radial-gradient(800px 500px at -10% 10%, rgba(110, 231, 255, .12), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--a1); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1100px, 100% - 40px); margin-inline: auto; }

/* header */
header.site {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(7, 9, 15, .72);
  border-bottom: 1px solid var(--line);
}
header.site .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 800; letter-spacing: -.02em; font-size: 1.25rem; color: var(--text); }
.logo span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo:hover { text-decoration: none; }
nav { display: flex; gap: 6px; flex-wrap: wrap; }
nav a { color: var(--muted); padding: 8px 14px; border-radius: 10px; font-size: .95rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); background: var(--card); text-decoration: none; }

/* hero */
.hero { padding: 110px 0 80px; }
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--line); background: var(--card);
  padding: 6px 14px; border-radius: 99px; font-size: .85rem; color: var(--muted);
}
.pill i { width: 8px; height: 8px; border-radius: 50%; background: var(--a3); box-shadow: 0 0 10px var(--a3); }
h1 { font-size: clamp(2.4rem, 6vw, 4.4rem); line-height: 1.05; letter-spacing: -.035em; margin: 24px 0 20px; max-width: 14ch; }
h1 em, h2 em { font-style: normal; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 58ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.btn {
  display: inline-block; padding: 13px 24px; border-radius: 12px; font-weight: 600;
  border: 1px solid var(--line); color: var(--text); background: var(--card);
}
.btn:hover { text-decoration: none; border-color: var(--a2); }
.btn.primary { background: var(--grad); color: #07090f; border: 0; }
.btn.primary:hover { filter: brightness(1.1); }

/* sections */
section { padding: 70px 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -.03em; line-height: 1.15; margin-bottom: 14px; }
.sub { color: var(--muted); max-width: 60ch; margin-bottom: 40px; }
.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-3px); border-color: #34406a; }
.card .ico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(110, 231, 255, .18), rgba(167, 139, 250, .18));
  border: 1px solid var(--line); margin-bottom: 18px; font-size: 1.25rem;
}
.card h3 { font-size: 1.15rem; margin-bottom: 8px; letter-spacing: -.01em; }
.card p, .card li { color: var(--muted); font-size: .97rem; }
.card ul { padding-left: 18px; margin-top: 10px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 18px; margin-top: 56px; }
.stat b { display: block; font-size: 2rem; letter-spacing: -.03em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--muted); font-size: .9rem; }

/* page head */
.page-head { padding: 80px 0 30px; }
.page-head h1 { font-size: clamp(2rem, 5vw, 3.2rem); max-width: 20ch; margin-top: 0; }

/* infra diagram */
.flow { display: grid; gap: 14px; }
.layer {
  display: grid; grid-template-columns: 170px 1fr; gap: 20px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px;
}
.layer > b { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--a1); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span {
  font: .85rem ui-monospace, SFMono-Regular, Menlo, monospace;
  padding: 5px 12px; border-radius: 8px; background: var(--bg); border: 1px solid var(--line); color: var(--text);
}
.arrow { text-align: center; color: var(--a2); font-size: 1.2rem; line-height: 1; }

/* process */
.steps { counter-reset: s; display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.step { counter-increment: s; }
.step::before {
  content: "0" counter(s); display: block; font-size: 2.2rem; font-weight: 800;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.step h3 { margin: 6px 0; }
.step p { color: var(--muted); font-size: .95rem; }

/* contact */
.mail { font-size: clamp(1.4rem, 4vw, 2.2rem); font-weight: 700; letter-spacing: -.02em; word-break: break-all; }

footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: .9rem; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

@media (max-width: 640px) {
  .hero { padding: 70px 0 50px; }
  .layer { grid-template-columns: 1fr; gap: 10px; }
  header.site .wrap { height: auto; padding: 10px 0; flex-direction: column; gap: 6px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }