:root {
  --bg: #0b0c10;
  --card: #0f1115;
  --muted: #9aa0a6;
  --accent: #8be9fd;
  --glass: rgba(255, 255, 255, 0.02);
  --radius: 14px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, "Roboto Mono", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(139, 233, 253, 0.03), transparent),
              radial-gradient(900px 500px at 90% 90%, rgba(155, 100, 255, 0.02), transparent),
              var(--bg);
  color: #e6eef6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card {
  width: 100%;
  max-width: 720px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(6px) saturate(110%);
}

header {
  text-align: center;
  margin-bottom: 24px;
}

header .title {
  font-size: 28px;
  margin: 0;
  letter-spacing: -0.02em;
}

header .subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 16px;
}

nav {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.link {
  background: var(--glass);
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.02);
  font-weight: 600;
  font-size: 14px;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  gap: 8px;
  align-items: center;
  transition: transform 0.14s ease, box-shadow 0.14s ease;
}

.link:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

section {
  margin-top: 32px;
}

section h2 {
  font-size: 20px;
  margin-bottom: 12px;
  color: #e6eef6;
}

section p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--muted);
}

ul {
  padding-left: 20px;
}

ul li {
  margin-bottom: 8px;
  font-size: 15px;
  color: var(--muted);
}

footer {
  margin-top: 60px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 600px) {
  body {
    padding: 20px;
  }

  .card {
    padding: 24px;
  }
}