:root {
  --bg-1: #0c0d18;
  --bg-2: #1a1b2e;
  --pink: #FF5E9C;
  --purple: #B259F0;
  --text: #ffffff;
  --muted: rgba(255,255,255,0.78);
  --line: rgba(255,255,255,0.10);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: radial-gradient(ellipse at top, var(--bg-2) 0%, var(--bg-1) 100%);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--pink); text-decoration: none; font-weight: 600; }
a:hover { text-decoration: underline; }
header {
  padding: 22px 32px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 18px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--purple));
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.back { color: var(--muted); font-size: 14px; font-weight: 500; }
.back:hover { color: var(--text); text-decoration: none; }
main {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}
h1 { font-size: 34px; font-weight: 800; letter-spacing: -0.5px; margin: 0 0 6px; }
.updated { color: rgba(255,255,255,0.5); font-size: 14px; margin: 0 0 28px; }
h2 { font-size: 20px; font-weight: 800; margin: 32px 0 10px; }
h3 { font-size: 16px; font-weight: 700; margin: 18px 0 6px; }
p, li { color: var(--muted); font-size: 15.5px; }
ul { padding-left: 22px; }
strong { color: var(--text); }
hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
.box {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 22px;
  margin: 18px 0;
}
footer {
  text-align: center;
  padding: 24px;
  color: rgba(255,255,255,0.45);
  font-size: 13px;
  border-top: 1px solid var(--line);
}