:root {
  --bg: #0C1020;
  --surface: #151B31;
  --surface2: #1F2544;
  --text: #EEF0FF;
  --muted: #9AA0BF;
  --border: rgba(255, 255, 255, 0.10);
  --primary: #7B6CF0;
  --accent: #FFC24B;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 44px 20px 64px; }
.brand { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.brand img { width: 56px; height: 56px; border-radius: 14px; }
.brand h1 { font-size: 22px; margin: 0; letter-spacing: -0.02em; }
h1 { font-size: 26px; letter-spacing: -0.02em; margin: 0 0 6px; }
.tag { color: var(--muted); margin: 0 0 32px; font-size: 15px; }
a { color: var(--primary); }
.cards { display: grid; gap: 14px; }
.card {
  position: relative;
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--primary); transform: translateY(-1px); }
.card h3 { margin: 0 0 4px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }
.card .arrow { position: absolute; right: 18px; top: 18px; color: var(--muted); }
h2 { font-size: 20px; margin-top: 36px; border-top: 1px solid var(--border); padding-top: 26px; }
h3 { font-size: 16px; margin-top: 22px; }
p, li { font-size: 15.5px; }
.btn {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  padding: 13px 22px;
  border-radius: 12px;
  font-weight: 600;
  margin-top: 10px;
}
.btn:hover { filter: brightness(1.08); }
.back { display: inline-block; margin-bottom: 22px; color: var(--muted); text-decoration: none; font-size: 14px; }
.back:hover { color: var(--text); }
.muted { color: var(--muted); font-size: 14px; }
.note {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--muted);
  font-size: 14.5px;
}
code { background: var(--surface2); padding: 1px 6px; border-radius: 5px; font-size: 90%; }
ul { padding-left: 20px; }
li { margin: 6px 0; }
footer { margin-top: 48px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--border); padding-top: 20px; }