:root {
  --purple: #7a72c8;
  --amber: #e3a31e;
  --ink: #16151d;
  --muted: #5d5b6b;
  --line: #e7e5ef;
  --bg: #fbfaf7;
  --card: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

a { color: inherit; }

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
}

nav { display: flex; align-items: center; gap: 22px; }
nav a { text-decoration: none; color: var(--muted); font-size: 15px; }
nav a:hover { color: var(--ink); }

.lang {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 8px;
  padding: 4px 10px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

main { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

section { padding: 72px 0; border-top: 1px solid var(--line); }
section.hero { border-top: 0; padding-top: 64px; }

.eyebrow {
  color: var(--purple);
  font-weight: 600;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}

h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.12; margin: 0 0 20px; max-width: 820px; }
h2 { font-size: 28px; margin: 0 0 24px; }
h3 { font-size: 18px; margin: 0 0 8px; }

.lead { font-size: 19px; color: var(--muted); max-width: 720px; margin: 0 0 32px; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; }

.button {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  text-decoration: none;
  font-weight: 600;
}

.button.primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.button.primary:hover { background: var(--purple); border-color: var(--purple); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.grid article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  border-top: 4px solid var(--purple);
}

.grid article:nth-child(even) { border-top-color: var(--amber); }
.grid p { margin: 0; color: var(--muted); }

.roadmap p { color: var(--muted); max-width: 720px; }
.roadmap ul { padding-left: 20px; margin: 16px 0 0; }
.roadmap li { margin: 6px 0; }

.contact p { color: var(--muted); }

footer {
  max-width: 1080px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 14px;
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  nav a { display: none; }
  section { padding: 52px 0; }
}