:root {
  --bg: #fbfaf7;
  --ink: #181713;
  --muted: #5f5a50;
  --line: #ded8ca;
  --panel: #ffffff;
  --code-bg: #151515;
  --code-ink: #f4f1e8;
  --accent: #236456;
  --accent-2: #8f3f2b;
  --mark: #f4d35e;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

body {
  margin: 0;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(251, 250, 247, 0.92);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  align-items: center;
  display: flex;
  justify-content: space-between;
  min-height: 64px;
  gap: 20px;
}

.brand {
  color: var(--ink);
  font-weight: 760;
  letter-spacing: 0;
  text-decoration: none;
}

.navlinks {
  display: flex;
  gap: 18px;
  align-items: center;
  font-size: 14px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: 48px;
  padding: 72px 0 42px;
  align-items: start;
}

.eyebrow {
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  letter-spacing: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(42px, 6vw, 76px);
  margin: 14px 0 18px;
  max-width: 980px;
}

.fix-page h1 {
  font-size: clamp(34px, 5vw, 58px);
}

h2 {
  font-size: 28px;
  margin: 44px 0 14px;
}

h3 {
  font-size: 20px;
  margin: 28px 0 10px;
}

p {
  color: var(--muted);
  font-size: 17px;
  margin: 0 0 16px;
}

.lede {
  font-size: 20px;
  max-width: 780px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.metric-grid,
.fix-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.metric {
  border-left: 3px solid var(--accent);
  padding-left: 14px;
}

.metric strong {
  display: block;
  font-size: 24px;
}

.metric span,
.meta-row,
.tag {
  color: var(--muted);
  font-size: 13px;
}

.query-list,
.fix-list {
  display: grid;
  gap: 12px;
  margin: 22px 0 48px;
}

.query-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 8px;
  padding: 18px;
}

.query-card strong {
  font-size: 17px;
}

.query-card code,
.inline-code {
  background: #efebe2;
  border-radius: 4px;
  color: #222018;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  padding: 2px 5px;
}

.quick-fix {
  border-top: 4px solid var(--accent);
  margin: 28px 0;
}

pre {
  background: var(--code-bg);
  border-radius: 8px;
  color: var(--code-ink);
  overflow-x: auto;
  padding: 18px;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 42px;
  padding: 36px 0 72px;
}

.toc {
  align-self: start;
  position: sticky;
  top: 88px;
}

.toc a {
  display: block;
  font-size: 14px;
  margin: 8px 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 24px;
}

.tag {
  background: #ece6d8;
  border-radius: 999px;
  padding: 5px 9px;
}

.notice {
  background: #fff7dc;
  border: 1px solid #efd27a;
  border-radius: 8px;
  color: #4d3a0b;
  padding: 14px 16px;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 48px;
}

.footer p {
  font-size: 14px;
}

@media (max-width: 860px) {
  .hero,
  .page-layout {
    grid-template-columns: 1fr;
  }

  .metric-grid,
  .fix-grid {
    grid-template-columns: 1fr;
  }

  .toc {
    position: static;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }
}