:root {
  --bg: #ffffff; --fg: #1a2230; --muted: #5b6676; --line: #e3e8ef;
  --accent: #0b6e8f; --accent-ink: #ffffff; --band: #f3f6f9;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f141b; --fg: #e8edf3; --muted: #a3afbf; --line: #253040;
          --accent: #3fb3d6; --accent-ink: #0f141b; --band: #151c25; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
       background: var(--bg); color: var(--fg); }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.top { border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--bg); z-index: 5; }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 64px; gap: 16px; }
.brand { font-weight: 800; font-size: 20px; color: var(--fg); text-decoration: none; letter-spacing: -.01em; }
.brand span { color: var(--accent); }
nav { display: flex; gap: 18px; align-items: center; }
nav a { color: var(--fg); text-decoration: none; font-size: 15px; }
.btn { display: inline-block; background: var(--accent); color: var(--accent-ink) !important;
       padding: 12px 20px; border-radius: 8px; text-decoration: none; font-weight: 600; }
.btn-sm { padding: 8px 14px; }
.btn-ghost { background: transparent; color: var(--fg) !important; border: 1px solid var(--line); }
.hero { padding: 88px 0 72px; background: var(--band); border-bottom: 1px solid var(--line); }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: 13px; color: var(--muted); margin: 0 0 8px; }
h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -.02em; max-width: 18ch; }
.lead { font-size: 19px; color: var(--muted); max-width: 60ch; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.section { padding: 64px 20px; }
h2 { font-size: 30px; margin: 0 0 24px; letter-spacing: -.01em; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.card { border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.card h3 { margin: 0 0 8px; font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.band { background: var(--band); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.steps { padding-left: 20px; display: grid; gap: 10px; max-width: 70ch; }
.contact { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.big { font-size: 22px; font-weight: 700; margin: 0 0 8px; }
.big a { color: var(--fg); text-decoration: none; }
.note { border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.foot { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 14px; }
@media (max-width: 560px) { nav a:not(.btn) { display: none; } }