:root {
  --bg: #0a0c14;
  --surface: #121829;
  --border: #232c44;
  --text: #f5f7ff;
  --muted: #93a0c0;
  --accent: #38e1ff;
  --accent2: #2ee6a6;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(800px 400px at 80% -10%, rgba(56,225,255,.12), transparent 60%), var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
.wrap { max-width: 720px; margin: 0 auto; padding: 0 24px; }
header { padding: 40px 0 8px; display: flex; align-items: center; justify-content: space-between; }
.brand { font-weight: 800; letter-spacing: -.5px; font-size: 20px; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 18px; font-size: 15px; }
nav a:hover { color: var(--text); }
h1 { font-size: 40px; line-height: 1.1; letter-spacing: -1px; margin: 40px 0 12px; }
h2 { margin-top: 40px; letter-spacing: -.3px; }
.lead { color: var(--muted); font-size: 20px; }
a { color: var(--accent); }
.post-list { list-style: none; padding: 0; }
.post-list li { border-top: 1px solid var(--border); padding: 18px 0; }
.post-list .date, .date { color: var(--muted); font-size: 14px; }
.post-list h3 { margin: 4px 0 6px; }
.post-list a { text-decoration: none; }
pre { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 16px; overflow: auto; font-size: 14px; }
code { font-family: "SF Mono", Menlo, Consolas, monospace; }
:not(pre) > code { background: var(--surface); border: 1px solid var(--border); border-radius: 6px; padding: 1px 6px; font-size: 15px; }
footer { border-top: 1px solid var(--border); margin-top: 64px; padding: 28px 0 60px; color: var(--muted); font-size: 14px; }
.cta { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin: 32px 0; }.cta a.btn { display: inline-block; background: var(--accent); color: #04121a; font-weight: 700; padding: 10px 16px; border-radius: 999px; text-decoration: none; margin-top: 8px; }
.tool { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin: 16px 0 8px; }
.tool h3 a { text-decoration: none; }
.tool code { display: inline-block; margin-top: 4px; }
.subscribe { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 22px; margin: 40px 0 8px; }
.sub-form { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.sub-form input[type=email] {
  flex: 1 1 240px; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text); font-size: 16px;
}
.sub-form button {
  padding: 11px 20px; border-radius: 10px; border: none; background: var(--accent);
  color: #04121a; font-weight: 700; font-size: 16px; cursor: pointer;
}
.hint { color: var(--muted); font-size: 13px; margin-top: 10px; }