:root {
  --color-bg: #101112;
  --color-text: #f2f5f4;
  --color-muted: #9aa7a5;
  --color-detail: #52d7df;
  --color-line: rgba(242, 245, 244, 0.14);
  --space-xs: clamp(0.5rem, 0.42rem + 0.35vw, 0.75rem);
  --space-s: clamp(0.875rem, 0.78rem + 0.46vw, 1.25rem);
  --space-m: clamp(1.5rem, 1.15rem + 1.5vw, 2.75rem);
  --space-l: clamp(2.75rem, 2.05rem + 3vw, 5.25rem);
  --space-page: clamp(1.5rem, 4.2vw, 4.5rem);
  --font-size-body: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --font-size-small: clamp(0.8125rem, 0.78rem + 0.15vw, 0.9375rem);
  --font-size-card-title: clamp(1.125rem, 1.02rem + 0.46vw, 1.375rem);
  --font-size-section-title: clamp(1.375rem, 1.16rem + 0.92vw, 1.875rem);
  --font-size-page-title: clamp(2rem, 1.38rem + 2.65vw, 4.25rem);
}

* {
  box-sizing: border-box;
  font-weight: 400;
}

html {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color-scheme: dark;
  font-size: var(--font-size-body);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    "Open Sans",
    "Helvetica Neue",
    sans-serif;
  display: flex;
  flex-direction: column;
}

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

a:focus-visible {
  outline: 1px solid var(--color-detail);
  outline-offset: 0.35rem;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

pre {
  max-width: 100%;
  overflow-x: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-s);
  padding: var(--space-m) var(--space-page) 0;
}

.site-name {
  font-size: var(--font-size-card-title);
  line-height: 1.35;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: var(--space-s);
}

.site-header nav a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  border-top: 1px solid var(--color-line);
  color: var(--color-muted);
  font-size: var(--font-size-small);
  transition: color 180ms ease;
}

.site-header nav a:hover,
.site-header nav a:focus-visible,
.site-header nav a[aria-current="page"] {
  color: var(--color-detail);
}

main {
  flex: 1;
}

.blog-listing {
  padding: var(--space-l) var(--space-page);
}

.page-intro {
  max-width: 50rem;
}

.eyebrow {
  margin: 0 0 var(--space-s);
  color: var(--color-detail);
  font-size: var(--font-size-small);
  line-height: 1.35;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--color-text);
}

/* Semantic emphasis uses the portfolio accent so key ideas stand out without changing document structure. */
.highlight {
  color: var(--color-detail);
}

.page-intro h1,
.article-header h1 {
  font-size: var(--font-size-page-title);
  line-height: 1.08;
}

.page-intro > p:last-child {
  max-width: 42rem;
  margin: var(--space-s) 0 0;
  color: var(--color-muted);
  line-height: 1.65;
}

.posts-section {
  margin-top: var(--space-l);
}

.posts-section > h2 {
  margin-bottom: var(--space-s);
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.35;
}

/* The fixed column counts implement the authoring contract while content-driven breakpoints prevent cramped cards. */
.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-s);
}

.post-card {
  min-height: 18rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: var(--space-m);
  position: relative;
  border-top: 1px solid var(--color-line);
  padding-top: var(--space-s);
}

.post-card-label {
  margin: 0 0 var(--space-xs);
  color: var(--color-detail);
  font-size: var(--font-size-small);
  line-height: 1.35;
}

.post-card h3 {
  font-size: var(--font-size-card-title);
  line-height: 1.25;
}

.post-card h3 a::after {
  content: "";
  position: absolute;
  inset: 0;
}

.post-card h3 a:focus-visible {
  outline-offset: 0.25rem;
}

.post-card-content > p:last-child {
  margin: var(--space-xs) 0 0;
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.55;
}

.post-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xs);
  color: var(--color-muted);
  font-size: var(--font-size-small);
}

.text-link {
  position: relative;
  z-index: 1;
  color: var(--color-text);
  transition: color 180ms ease;
}

.post-card:hover .text-link,
.text-link:hover,
.text-link:focus-visible {
  color: var(--color-detail);
}

.article-column {
  --reading-font-size: 1rem;
  --reading-summary-size: 1.125rem;
  max-width: 1024px;
  margin-inline: auto;
  padding: var(--space-l) var(--space-page);
}

.article-column[data-font-size="0"] {
  --reading-font-size: 0.9rem;
  --reading-summary-size: 1rem;
}

.article-column[data-font-size="2"] {
  --reading-font-size: 1.1rem;
  --reading-summary-size: 1.2375rem;
}

.article-column[data-font-size="3"] {
  --reading-font-size: 1.2rem;
  --reading-summary-size: 1.35rem;
}

.article-column[data-font-size="4"] {
  --reading-font-size: 1.3rem;
  --reading-summary-size: 1.4625rem;
}

.reading-controls {
  position: fixed;
  top: 50%;
  right: var(--space-s);
  z-index: 90;
  display: grid;
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-bg);
  transform: translateY(-50%);
}

.reading-controls button {
  width: 2.75rem;
  min-height: 2.75rem;
  border: 0;
  background: transparent;
  color: var(--color-text);
  font: inherit;
  cursor: pointer;
  transition:
    color 180ms ease,
    background-color 180ms ease;
}

.reading-controls button + button {
  border-top: 1px solid var(--color-line);
}

.reading-controls button:hover,
.reading-controls button:focus-visible {
  background: rgba(82, 215, 223, 0.08);
  color: var(--color-detail);
}

.reading-controls button:focus-visible {
  position: relative;
  z-index: 1;
  outline: 1px solid var(--color-detail);
  outline-offset: -1px;
}

.reading-controls button:disabled {
  color: var(--color-muted);
  cursor: not-allowed;
  opacity: 0.45;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.article-header {
  padding-bottom: var(--space-m);
}

.back-link {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-m);
  color: var(--color-muted);
  font-size: var(--font-size-small);
  transition: color 180ms ease;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--color-detail);
}

.article-summary {
  margin: var(--space-s) 0 0;
  color: var(--color-muted);
  font-size: var(--reading-summary-size);
  line-height: 1.65;
}

.article-header time {
  display: block;
  margin-top: var(--space-s);
  color: var(--color-muted);
  font-size: var(--font-size-small);
}

.article-column > section {
  border-top: 1px solid var(--color-line);
  padding: var(--space-m) 0;
}

.article-column section h2 {
  font-size: var(--font-size-section-title);
  line-height: 1.25;
}

.article-column section p {
  margin: var(--space-s) 0 0;
  color: var(--color-muted);
  font-size: var(--reading-font-size);
  line-height: 1.75;
}

.article-column section ul,
.article-column section ol {
  margin: var(--space-s) 0 0;
  padding-left: 1.35rem;
  color: var(--color-muted);
  font-size: var(--reading-font-size);
}

.article-column section ul ul {
  margin-top: var(--space-xs);
}

.article-column section li {
  padding-left: 0.2rem;
  line-height: 1.65;
}

.article-column section li + li {
  margin-top: 0.35rem;
}

.article-column code {
  max-width: 100%;
  border: 1px solid var(--color-line);
  padding: 0.08em 0.35em;
  color: var(--color-text);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.article-column .example {
  border-left: 1px solid var(--color-detail);
  padding-left: var(--space-s);
  color: var(--color-text);
}

.article-column section h3 {
  margin-top: var(--space-m);
  font-size: var(--font-size-card-title);
  line-height: 1.35;
}

/* Wide field mappings scroll inside their own region so the reading page never overflows horizontally. */
.table-scroll {
  max-width: 100%;
  margin-top: var(--space-s);
  overflow-x: auto;
  border: 1px solid var(--color-line);
}

.table-scroll:focus-visible {
  outline: 1px solid var(--color-detail);
  outline-offset: 0.25rem;
}

.article-column table {
  width: 100%;
  min-width: 42rem;
  border-collapse: collapse;
  color: var(--color-muted);
  font-size: var(--reading-font-size);
  line-height: 1.5;
}

.article-column th,
.article-column td {
  padding: var(--space-xs);
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  vertical-align: top;
}

.article-column th {
  color: var(--color-text);
}

.article-column tbody tr:last-child td {
  border-bottom: 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-xs) var(--space-s);
  /* An opaque, elevated footer prevents cards or decorative layers from showing above it. */
  position: relative;
  z-index: 100;
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-line);
  margin: 0;
  padding: var(--space-s) var(--space-page) var(--space-m);
  color: var(--color-muted);
  font-size: var(--font-size-small);
  line-height: 1.5;
}

.site-footer a {
  color: var(--color-text);
  transition: color 180ms ease;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--color-detail);
}

@media (max-width: 920px) {
  .post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .post-grid {
    grid-template-columns: 1fr;
  }

  .post-card {
    min-height: 15rem;
  }

  .blog-post .article-column {
    padding-right: 4.5rem;
  }

  .reading-controls {
    right: 0.5rem;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-header nav a,
  .text-link,
  .back-link,
  .reading-controls button,
  .site-footer a {
    transition: none;
  }
}