:root {
  --bg: #0c1224;
  --bg2: #131a30;
  --card: #182040;
  --border: #26304f;
  --text: #e8ecf6;
  --text2: #aab3cc;
  --text3: #7c87a6;
  --accent: #5b7cff;
  --accent2: #8aa0ff;
  --radius: 16px;
  --max: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

header {
  background: linear-gradient(135deg, #5b7cff20, #8aa0ff10);
  border-bottom: 1px solid var(--border);
}

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }

.brand {
  display: flex; align-items: center; gap: 12px;
  padding: 22px 0;
}
.brand .logo {
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(135deg, #5b7cff, #a78bfa);
  display: grid; place-items: center; font-size: 20px;
}
.brand .name { font-size: 22px; font-weight: 800; letter-spacing: -0.3px; }
.brand .name span { color: var(--accent2); }

main { padding: 40px 0 80px; }

h1 { font-size: 30px; font-weight: 800; letter-spacing: -0.5px; margin: 0 0 6px; }
h2 { font-size: 19px; font-weight: 700; margin: 34px 0 10px; color: var(--text); }
h3 { font-size: 15px; font-weight: 700; margin: 20px 0 6px; color: var(--text2); }
p, li { color: var(--text2); font-size: 15.5px; }
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

.updated { color: var(--text3); font-size: 13px; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin: 16px 0;
}

.note {
  border-left: 3px solid var(--accent);
  background: #5b7cff14;
  padding: 12px 16px;
  border-radius: 8px;
  margin: 16px 0;
  font-size: 14.5px;
}

ul { padding-left: 20px; }
li { margin: 5px 0; }

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
@media (max-width: 560px) { .tiles { grid-template-columns: 1fr; } }
.tile {
  display: block;
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
}
.tile:hover { border-color: var(--accent); text-decoration: none; }
.tile h3 { color: var(--text); margin: 0 0 4px; }
.tile p { margin: 0; font-size: 14px; color: var(--text3); }

footer {
  border-top: 1px solid var(--border);
  padding: 26px 0;
  color: var(--text3);
  font-size: 13.5px;
}
footer a { color: var(--text2); }
.footlinks { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 8px; }