:root {
  color-scheme: light;
  --background: hsl(210 20% 98%);
  --foreground: hsl(224 71% 4%);
  --card: hsl(0 0% 100%);
  --muted: hsl(215 20% 94%);
  --muted-foreground: hsl(215 16% 47%);
  --border: hsl(214 32% 91%);
  --primary: hsl(226 70% 55%);
  --primary-foreground: hsl(0 0% 100%);
  --success: hsl(152 65% 38%);
  --success-bg: hsl(152 65% 94%);
  --warning: hsl(38 92% 45%);
  --warning-bg: hsl(38 92% 94%);
  --info-bg: hsl(210 95% 95%);
  --shadow-card: 0 0 0 1px rgb(0 0 0 / 4%), 0 2px 4px rgb(0 0 0 / 2%), 0 4px 8px rgb(0 0 0 / 2%);
  --shadow-elevated: 0 0 0 1px rgb(0 0 0 / 4%), 0 4px 8px rgb(0 0 0 / 4%), 0 8px 16px rgb(0 0 0 / 4%);
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --background: hsl(224 47% 6%);
    --foreground: hsl(210 20% 96%);
    --card: hsl(224 40% 9%);
    --muted: hsl(224 30% 14%);
    --muted-foreground: hsl(215 16% 65%);
    --border: hsl(224 30% 18%);
    --primary: hsl(226 75% 65%);
    --primary-foreground: hsl(224 47% 6%);
    --success: hsl(152 60% 50%);
    --success-bg: hsl(152 50% 14%);
    --warning: hsl(38 92% 60%);
    --warning-bg: hsl(38 60% 14%);
    --info-bg: hsl(210 60% 14%);
    --shadow-card: 0 0 0 1px rgb(255 255 255 / 4%), 0 2px 4px rgb(0 0 0 / 30%), 0 4px 8px rgb(0 0 0 / 20%);
    --shadow-elevated: 0 0 0 1px rgb(255 255 255 / 4%), 0 4px 8px rgb(0 0 0 / 40%), 0 8px 16px rgb(0 0 0 / 30%);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: Geist, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  color: var(--primary);
}

img {
  display: block;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--background) 86%, transparent);
  backdrop-filter: blur(12px);
}

.site-shell {
  width: min(100% - 32px, 1100px);
  margin: 0 auto;
}

.header-inner {
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 18px;
  letter-spacing: 0;
}

.brand img {
  width: 22px;
  height: 22px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted-foreground);
  font-size: 14px;
  font-weight: 500;
}

.nav-links a[aria-current="page"] {
  color: var(--foreground);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  box-shadow: var(--shadow-card);
  color: var(--foreground);
  font-weight: 600;
}

.button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--primary-foreground);
}

.button.primary:hover {
  color: var(--primary-foreground);
  opacity: 0.92;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 40px;
  align-items: center;
  padding: 72px 0 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--primary);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 680px;
  margin-bottom: 18px;
  font-size: 56px;
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 16px;
  line-height: 1.35;
}

.lead {
  max-width: 620px;
  margin-bottom: 28px;
  color: var(--muted-foreground);
  font-size: 17px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.blog-index-hero {
  max-width: 760px;
  padding: 72px 0 28px;
}

.blog-index-hero h1 {
  max-width: 720px;
}

.tutorial-index {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(240px, 0.65fr);
  gap: 32px;
  align-items: start;
  padding: 18px 0 32px;
}

.tutorial-index h2 {
  margin-bottom: 14px;
}

.blog-filter {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 0;
  padding: 0 0 16px;
  border-radius: 8px;
  scroll-margin-top: 76px;
}

.blog-filter h2 {
  margin-bottom: 4px;
}

.blog-filter p {
  margin: 0;
  color: var(--muted-foreground);
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted-foreground);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.post-list {
  display: grid;
}

.tutorial-row {
  display: block;
  border-top: 1px solid var(--border);
  padding: 22px 0;
  color: var(--foreground);
}

.tutorial-row:hover {
  color: var(--foreground);
}

.tutorial-row h3 {
  font-size: 18px;
}

.tutorial-row p {
  max-width: 620px;
  color: var(--muted-foreground);
}

#tutorials:target {
  margin: -14px -14px 0;
  padding: 14px 14px 16px;
  background: var(--info-bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--primary) 35%, var(--border));
}

#tutorials:target .filter-pill {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  color: var(--primary);
}

#tutorials:target + .post-list .tutorial-post {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
}

.up-next {
  border-left: 1px solid var(--border);
  padding-left: 24px;
}

.up-next ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted-foreground);
}

.workflow-panel,
.article-card,
.callout,
.toc,
.metric-card,
.article-preview,
.checklist {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  box-shadow: var(--shadow-card);
}

.workflow-panel {
  padding: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.panel-title {
  margin: 0;
  font-weight: 650;
}

.status-pill,
.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.status-pill {
  background: var(--success-bg);
  color: var(--success);
}

.tag {
  border: 1px solid var(--border);
  color: var(--muted-foreground);
}

.workflow-list {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
}

.workflow-step {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.step-index {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--muted);
  color: var(--primary);
  font-weight: 750;
}

.workflow-step p {
  margin: 2px 0 0;
  color: var(--muted-foreground);
  font-size: 13px;
}

.section {
  padding: 32px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.section-heading p {
  max-width: 580px;
  margin: 0;
  color: var(--muted-foreground);
}

.article-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 18px;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 22px;
  transition: border-color 160ms ease, transform 160ms ease;
}

.article-card[href]:hover {
  border-color: color-mix(in srgb, var(--primary) 45%, var(--border));
  color: var(--foreground);
  transform: translateY(-1px);
}

.article-card .meta,
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
  color: var(--muted-foreground);
  font-size: 12px;
  font-weight: 600;
}

.article-card p {
  color: var(--muted-foreground);
}

.card-link {
  margin-top: auto;
  color: var(--primary);
  font-weight: 700;
}

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

.track {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: color-mix(in srgb, var(--card) 74%, var(--muted));
}

.track p {
  margin-bottom: 0;
  color: var(--muted-foreground);
  font-size: 13px;
}

.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 24px 0;
  color: var(--muted-foreground);
  font-size: 12px;
}

.footer-links {
  display: flex;
  gap: 16px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 720px) 260px;
  gap: 48px;
  align-items: start;
  padding: 56px 0 24px;
}

.article-hero {
  padding: 52px 0 16px;
  border-bottom: 1px solid var(--border);
}

.article-hero h1 {
  max-width: 780px;
  font-size: 48px;
}

.article-hero .lead {
  margin-bottom: 16px;
}

.toc {
  position: sticky;
  top: 76px;
  padding: 16px;
}

.toc h2 {
  margin-bottom: 12px;
  font-size: 13px;
  text-transform: uppercase;
}

.toc ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted-foreground);
}

.article-content {
  font-size: 16px;
  line-height: 1.75;
}

.article-content h2 {
  margin-top: 42px;
  padding-top: 4px;
}

.article-content p,
.article-content li {
  color: color-mix(in srgb, var(--foreground) 82%, var(--muted-foreground));
}

.article-content a {
  color: var(--primary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-content ol,
.article-content ul {
  padding-left: 24px;
}

.article-content li + li {
  margin-top: 10px;
}

.callout {
  margin: 24px 0;
  padding: 18px;
  background: var(--info-bg);
}

.callout.warning {
  background: var(--warning-bg);
}

.callout strong {
  color: var(--foreground);
}

.checklist {
  margin: 24px 0;
  padding: 18px;
}

.checklist ul {
  margin: 0;
}

.sample-query {
  display: block;
  margin: 12px 0 0;
  padding: 12px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--muted);
  color: var(--foreground);
  font: 13px/1.5 "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.metric-card {
  padding: 16px;
}

.metric-card strong {
  display: block;
  font-size: 20px;
}

.metric-card span {
  color: var(--muted-foreground);
  font-size: 12px;
}

.article-preview {
  margin-top: 42px;
  padding: 20px;
}

.article-preview p {
  margin-bottom: 16px;
  color: var(--muted-foreground);
}

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

  .hero {
    padding-top: 44px;
  }

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

  .toc {
    position: static;
  }

  .up-next {
    border-left: 0;
    border-top: 1px solid var(--border);
    padding: 22px 0 0;
  }

  .blog-filter {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 24px, 1100px);
  }

  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .blog-index-hero {
    padding-top: 44px;
  }

  .section-heading,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    font-size: 38px;
  }

  .article-hero h1 {
    font-size: 36px;
  }
}