:root {
  --bg: #ffffff; --bg-alt: #f5f7fa; --text: #1a1f2b; --muted: #5b6475;
  --accent: #0b6bcb; --accent-ink: #ffffff; --border: #e3e7ee;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f131a; --bg-alt: #161b24; --text: #e8ecf2; --muted: #9aa4b5;
    --accent: #4ea1ff; --accent-ink: #0f131a; --border: #252c38;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header { border-bottom: 1px solid var(--border); }
nav { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.logo { font-weight: 800; font-size: 20px; text-decoration: none; color: var(--text); }
.logo span { color: var(--accent); }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 8px; font-weight: 600;
  background: var(--accent); color: var(--accent-ink); text-decoration: none;
}
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
nav .btn { padding: 8px 16px; }
.hero { padding: 88px 0 72px; }
.hero h1 { font-size: clamp(30px, 5vw, 48px); line-height: 1.2; margin: 0 0 16px; max-width: 760px; }
.hero p { font-size: 18px; color: var(--muted); max-width: 640px; margin: 0 0 28px; }
.hero .cta { display: flex; gap: 12px; flex-wrap: wrap; }
section { padding: 64px 0; }
section.alt { background: var(--bg-alt); }
h2 { font-size: clamp(24px, 3.5vw, 32px); margin: 0 0 8px; }
.lead { color: var(--muted); margin: 0 0 32px; max-width: 640px; }
.grid { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.card { background: var(--bg); border: 1px solid var(--border); border-radius: 12px; padding: 24px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; }
.steps li { counter-increment: s; position: relative; padding: 0 0 20px 52px; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 0; width: 36px; height: 36px;
  border-radius: 50%; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 700;
}
.steps strong { display: block; }
.steps span { color: var(--muted); }
.contact { text-align: center; }
.contact .lead { margin: 0 auto 28px; }
footer { border-top: 1px solid var(--border); padding: 24px 0; color: var(--muted); font-size: 14px; }
.nav-right { display: flex; align-items: center; gap: 16px; }
.lang { font-size: 14px; font-weight: 600; text-decoration: none; }