:root {
  color-scheme: light;
  --paper: #f2f5f3;
  --surface: #ffffff;
  --surface-soft: #e8efeb;
  --ink: #132237;
  --muted: #53616a;
  --line: #cfd9d4;
  --accent: #087579;
  --accent-dark: #07575a;
  --accent-soft: #d9eeea;
  --code: #101a2a;
  --code-ink: #e8eef6;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: Iowan Old Style, Baskerville, Georgia, "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at 83% 2%, rgba(8, 117, 121, 0.07), transparent 27rem),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
}
a {
  color: var(--accent-dark);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover { color: var(--accent); }
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
code, pre { font-family: var(--mono); }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 20;
  padding: 0.55rem 0.8rem;
  background: var(--ink);
  color: #fff;
  transform: translateY(-180%);
}
.skip-link:focus { transform: none; }

.article-header,
.article-footer {
  display: flex;
  width: min(1040px, calc(100% - 48px));
  margin-inline: auto;
}
.article-header {
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}
.brand-logo {
  position: relative;
  width: 92px;
  height: 38px;
  overflow: hidden;
}
.brand-logo img {
  position: absolute;
  top: -26px;
  left: -21px;
  width: 132px;
  max-width: none;
}
.article-header nav {
  display: flex;
  gap: 1.4rem;
}
.article-header nav a {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 650;
  text-decoration: none;
}
.article-header nav a:hover { color: var(--accent-dark); }

.article-shell {
  width: min(920px, calc(100% - 48px));
  margin-inline: auto;
  padding: clamp(5rem, 10vw, 8rem) 0 6rem;
}
.article-title {
  margin: 0 0 1.5rem;
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 5.1rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.98;
}
.article-lede {
  max-width: 43rem;
  margin: 0 0 1.8rem;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.8vw, 1.55rem);
  line-height: 1.55;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  margin-bottom: 4.5rem;
  color: var(--muted);
  font-size: 0.77rem;
}
.article-meta span + span::before {
  margin-right: 0.8rem;
  color: var(--line);
  content: "/";
}
.article-body h2 {
  margin: 4.2rem 0 1.1rem;
  font-family: var(--serif);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.article-body h3 {
  margin: 2.8rem 0 0.8rem;
  font-size: 1.08rem;
  line-height: 1.4;
}
.article-body p,
.article-body ul { margin: 0 0 1.35rem; }
.article-body ul { padding-left: 1.25rem; }
.article-body li + li { margin-top: 0.4rem; }
.article-body code {
  padding: 0.12em 0.3em;
  border-radius: 3px;
  background: #e1e9e5;
  font-size: 0.86em;
}
.code-block {
  overflow-x: auto;
  margin: 2rem 0;
  padding: 1.4rem 1.5rem;
  border-radius: 4px;
  background: var(--code);
  color: var(--code-ink);
  font-size: clamp(0.72rem, 1.8vw, 0.82rem);
  line-height: 1.8;
}
.code-block code { padding: 0; background: transparent; }
.syntax-type,
.syntax-call { color: #68d0d0; }
.syntax-string { color: #c5db91; }
.code-comment,
.syntax-comment { color: #8290a4; }
.article-note {
  margin: 2.3rem 0;
  padding: 1.35rem 1.5rem;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.56);
}
.article-note p:last-child { margin-bottom: 0; }
.article-summary {
  margin: 4.5rem 0 0;
  padding: 2rem;
  background: var(--accent-soft);
}
.article-summary h2 { margin-top: 0; }
.article-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}
.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}
.button.primary { background: var(--ink); color: #fff; }
.button.primary:hover { border-color: var(--accent-dark); background: var(--accent-dark); }
.button.secondary { color: var(--ink); }

.article-index {
  width: min(920px, calc(100% - 48px));
  margin-inline: auto;
  padding: clamp(5rem, 10vw, 8rem) 0 7rem;
}
.article-index h1 {
  max-width: none;
  margin: 0 0 1.3rem;
  font-family: var(--serif);
  font-size: clamp(3rem, 7vw, 4.9rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.98;
}
.index-lede {
  max-width: 38rem;
  margin: 0 0 4rem;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.3rem;
}
.article-list { border-top: 1px solid var(--line); }
.article-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem 3rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
}
.article-card:hover h2 { color: var(--accent-dark); }
.article-card h2 {
  margin: 0 0 0.45rem;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  font-weight: 400;
  line-height: 1.15;
}
.article-card p { max-width: 39rem; margin: 0; color: var(--muted); }
.article-card time { color: var(--muted); font-size: 0.75rem; white-space: nowrap; }

.article-footer {
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.76rem;
}

@media (max-width: 620px) {
  .article-header,
  .article-footer,
  .article-shell,
  .article-index { width: min(100% - 30px, 1040px); }
  .article-header nav a:first-child { display: none; }
  .article-shell { padding-top: 4.5rem; }
  .article-title { font-size: clamp(2.7rem, 13vw, 4rem); }
  .article-index h1 { font-size: clamp(2.6rem, 11vw, 3.3rem); }
  .article-meta { margin-bottom: 3.5rem; }
  .article-card { grid-template-columns: 1fr; gap: 0.6rem; }
  .article-footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}