:root {
  color-scheme: dark;
  --bg: #07101d;
  --bg2: #0b1828;
  --card: rgba(16, 30, 49, 0.86);
  --text: #f2f7fa;
  --muted: #a8b7c7;
  --accent: #38c7db;
  --line: rgba(255, 255, 255, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 100%, rgba(56, 199, 219, 0.18), transparent 34rem),
    radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
}

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

.page {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 56px 0;
}

.narrow {
  width: min(760px, calc(100% - 40px));
}

.hero {
  min-height: 68vh;
  display: grid;
  align-content: center;
  gap: 28px;
}

.brand {
  display: flex;
  gap: 18px;
  align-items: center;
}

.mark {
  width: 64px;
  height: 64px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(56, 199, 219, 0.5);
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.38);
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 10px;
}

.lead {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

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

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

.primary {
  color: #07101d;
  background: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

article,
.info {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
}

article p,
.info p,
.narrow p,
li {
  color: var(--muted);
  line-height: 1.65;
}

.info {
  margin-top: 14px;
}

.back {
  display: inline-block;
  margin-bottom: 28px;
  text-decoration: none;
}

footer {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 26px 0 42px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

footer a {
  text-decoration: none;
}

@media (max-width: 760px) {
  .page {
    padding-top: 34px;
  }

  .hero {
    min-height: auto;
    padding: 42px 0;
  }

  .brand {
    align-items: flex-start;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}