:root {
    --ink: #071018;
    --ink-2: #0c1828;
    --line: rgba(160, 195, 230, 0.14);
    --line-faint: rgba(160, 195, 230, 0.08);
    --fg: #e8f0fa;
    --muted: #aabdd4;
    --dim: #93a7be;
    --navy: #1a3d6b;
    --sky: #5b9fd5;
    --sky-bright: #85c4f5;
    --signal: #5ec9a8;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
    --display: "Fraunces", "Palatino Linotype", Georgia, serif;
  }

  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    background:
      radial-gradient(ellipse 90% 50% at 50% -10%, rgba(26, 61, 107, 0.45), transparent 60%),
      var(--ink);
    color: var(--fg);
    font-family: var(--mono);
    font-weight: 400;
    font-size: 14px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
  }
  body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  }
  body > * { position: relative; z-index: 1; }

  a { color: inherit; text-decoration: none; }
  .wrap { max-width: 780px; margin: 0 auto; padding: 0 24px; }

  /* Header */
  header {
    border-bottom: 1px solid var(--line);
  }
  header .wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    gap: 20px;
  }
  .brand {
    display: flex;
    align-items: center;
    gap: 11px;
    font-family: var(--display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.02em;
  }
  .brand img { width: 26px; height: 26px; display: block; }
  header nav {
    display: flex;
    gap: 24px;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }
  header nav a { color: var(--dim); transition: color 0.2s; }
  header nav a:hover { color: var(--fg); }
  @media (max-width: 640px) { header nav { display: none; } }


.article { max-width: 780px; margin: 0 auto; padding: 64px 24px 0; }
.article h1, .article h2, .article h3 { font-family: var(--display); line-height: 1.2; }
.article h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); margin: 20px 0 24px; overflow-wrap: anywhere; }
.article h2 { font-size: 1.7rem; margin: 40px 0 16px; }
.article h3 { font-size: 1.3rem; margin: 28px 0 12px; }
.article p, .article ul, .article blockquote { margin: 0 0 24px; }
.article ul { padding-left: 24px; }
.article a { color: var(--sky-bright); text-decoration: underline; text-underline-offset: 4px; }
.article .meta, .article .breadcrumb { color: var(--muted); font-size: .8rem; }
.article blockquote { border-left: 2px solid var(--sky); padding: 16px 20px; background: var(--ink-2); }
.article .article-links { border-top: 1px solid var(--line); padding-top: 24px; margin-top: 48px; }
a:focus-visible { outline: 2px solid var(--sky-bright); outline-offset: 5px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }