:root {
  color-scheme: dark;
  --bg: #070910;
  --panel: #101520;
  --text: #f6f8fb;
  --muted: #a9b4c4;
  --line: #253041;
  --accent: #16d6d9;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #12313a 0, var(--bg) 38rem);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: var(--accent);
}

.wrap {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
}

header {
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 16, 0.88);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

nav a {
  color: var(--muted);
  text-decoration: none;
}

main {
  padding: 64px 0 84px;
}

.hero {
  display: grid;
  gap: 18px;
  margin-bottom: 36px;
}

h1 {
  margin: 0;
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  margin-top: 36px;
  color: var(--text);
}

p,
li {
  color: var(--muted);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 21, 32, 0.82);
  padding: 26px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--bg);
  background: var(--accent);
  font-weight: 700;
  text-decoration: none;
}

footer {
  border-top: 1px solid var(--line);
  padding: 28px 0;
  color: var(--muted);
}