:root {
  --bg: #0b1020;
  --card: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.72);
  --link: #7dd3fc;
  --border: rgba(255,255,255,0.14);
  --radius: 16px;
  --shadow: 0 18px 40px rgba(0,0,0,0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(900px 400px at 20% 10%, rgba(125,211,252,0.18), transparent 60%), var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  max-width: 980px;
  margin: 0 auto;
  padding: 24px 20px 0;
}

.home-link {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 20px;
}

.paper {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
}

h1 {
  margin-top: 0;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  letter-spacing: -0.02em;
}

h2 {
  margin-top: 1.6em;
  font-size: 1.15rem;
}

.meta {
  color: var(--muted);
}

.links {
  margin-top: 1.8em;
  font-weight: 500;
}