:root { color-scheme: dark; }
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Arial, sans-serif;
  background: #0f0f1a;
  color: #f0f0f5;
  line-height: 1.6;
}
a { color: #8fa8ff; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 760px;
  margin: 0 auto;
  padding: 18px 18px 0;
  font-size: 14px;
}
.topbar a.brand { color: #f0f0f5; font-weight: 700; text-decoration: none; font-size: 16px; }
.topbar nav a { color: #b7b7c9; text-decoration: none; margin-left: 18px; }
.topbar nav a:hover { color: #fff; }
.wrap { max-width: 680px; margin: 0 auto; padding: 24px 18px 70px; }
.wrap.wide { max-width: 760px; }
h1 { font-size: 26px; margin: 10px 0 8px; }
.sub { color: #9b9bc9; font-size: 15px; margin: 0 0 30px; }
.meta { color: #6c6c86; font-size: 13px; margin: 0 0 24px; }
.post-body p { color: #d4d4e4; font-size: 15.5px; margin: 0 0 16px; }
.post-body h2 { font-size: 19px; margin: 32px 0 10px; color: #f0f0f5; }
.post-body h3 { font-size: 16.5px; margin: 22px 0 8px; color: #e4e4f0; }
.post-body ul, .post-body ol { color: #d4d4e4; font-size: 15.5px; padding-left: 22px; margin: 0 0 16px; }
.post-body li { margin-bottom: 6px; }
.note {
  background: #1a2238; border: 1px solid #2f4178; border-radius: 10px;
  padding: 12px 14px; font-size: 13.5px; color: #a8c0f0; margin: 18px 0;
}
.warn {
  background: #352a10; border: 1px solid #6b5420; border-radius: 10px;
  padding: 12px 14px; font-size: 13.5px; color: #e0c067; margin: 18px 0;
}
.cta-box {
  background: #181830; border-radius: 16px; padding: 22px; margin: 36px 0 10px; text-align: center;
}
.cta-box p { color: #c3c3d8; font-size: 14.5px; margin: 0 0 14px; }
.cta-box a.btn {
  display: inline-block; padding: 12px 24px; border-radius: 12px; background: #5533ff;
  color: #fff; font-weight: 700; text-decoration: none; font-size: 15px;
}
.post-list { list-style: none; padding: 0; margin: 0; }
.post-list li {
  background: #181830; border-radius: 14px; padding: 18px 20px; margin-bottom: 14px;
}
.post-list a.title { color: #f0f0f5; font-weight: 700; font-size: 16.5px; text-decoration: none; }
.post-list a.title:hover { color: #8fa8ff; }
.post-list .excerpt { color: #a3a3bf; font-size: 13.5px; margin: 8px 0 0; line-height: 1.55; }
.post-list .date { color: #6c6c86; font-size: 12.5px; margin-top: 8px; }
footer { text-align: center; padding: 30px 0 10px; color: #6c6c86; font-size: 13px; }