:root {
  --color-bg: #080b0c;
  --color-surface: #0d1112;
  --color-text: #d9e0dc;
  --color-muted: #929e98;
  --color-border: #26302c;
  --color-heading: #86d99a;
  --color-link: #75bfff;
  --color-accent: #e5b566;
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --space-page: clamp(1.25rem, 4vw, 4rem);
  --measure: 68ch;
  --sidebar-width: 17rem;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-bg);
  color: var(--color-text);
  color-scheme: dark;
  font-family: var(--font-sans);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

body {
  background-image:
    linear-gradient(color-mix(in srgb, var(--color-border), transparent 82%) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--color-border), transparent 88%) 1px, transparent 1px);
  background-size: 100% 2rem, 2rem 100%;
  margin: 0;
  min-height: 100vh;
}

::selection {
  background: var(--color-heading);
  color: var(--color-bg);
}

a {
  color: var(--color-link);
  text-decoration-color: color-mix(in srgb, var(--color-link), transparent 55%);
  text-underline-offset: 0.18em;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

a:hover {
  color: var(--color-link);
  text-decoration-color: currentColor;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 0.25rem;
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin: 0;
}

p {
  margin: 0;
}

.skip-link {
  background: var(--color-text);
  color: var(--color-bg);
  left: 1rem;
  padding: 0.5rem 0.75rem;
  position: absolute;
  top: 1rem;
  transform: translateY(-200%);
  z-index: 10;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  background: color-mix(in srgb, var(--color-bg), transparent 10%);
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 1rem;
}

.site-header__inner {
  align-items: center;
  display: flex;
  gap: 0.75rem;
}

.site-mark,
.eyebrow {
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.eyebrow {
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-mark {
  text-decoration: none;
}

.site-mark::before {
  color: var(--color-heading);
  content: "> ";
}

.menu-button {
  display: none;
}

.site-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: calc(100vh - 5rem);
}

.site-shell:has(.site-content:only-child) {
  display: block;
}

.desktop-navigation {
  border-left: 1px solid var(--color-border);
  border-right: 1px solid var(--color-border);
  min-width: 0;
  padding: 2rem 1rem;
}

.explorer {
  font-family: var(--font-mono);
  position: sticky;
  top: 2rem;
}

.mobile-navigation__title {
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.explorer ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.explorer__tree > li + li {
  margin-top: 0.125rem;
}

.explorer__section summary {
  align-items: start;
  border-left: 2px solid transparent;
  color: var(--color-text);
  cursor: pointer;
  display: grid;
  font-size: 0.8125rem;
  grid-template-columns: 1rem minmax(0, 1fr);
  line-height: 1.35;
  list-style: none;
  padding: 0.42rem 0.5rem 0.42rem 0;
}

.explorer__section summary:hover {
  background: color-mix(in srgb, var(--color-border), transparent 65%);
}

.explorer__section summary::-webkit-details-marker {
  display: none;
}

.explorer__chevron {
  color: var(--color-muted);
  height: 1.1rem;
  position: relative;
  width: 1rem;
}

.explorer__chevron::before {
  content: "›";
  left: 0.25rem;
  position: absolute;
  top: 0;
  transform-origin: center;
  transition: transform 140ms ease;
}

.explorer__section[open] .explorer__chevron::before {
  transform: rotate(90deg);
}

.explorer__link {
  border-left: 2px solid transparent;
  color: var(--color-muted);
  display: block;
  font-size: 0.8125rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
  padding: 0.42rem 0.5rem;
  text-decoration: none;
}

.explorer__link:hover {
  background: color-mix(in srgb, var(--color-border), transparent 65%);
  color: var(--color-text);
}

.explorer__link[aria-current="page"] {
  background: color-mix(in srgb, var(--color-heading), transparent 88%);
  border-left-color: var(--color-heading);
  color: var(--color-heading);
}

.explorer__link--root {
  color: var(--color-text);
}

.explorer__tree > li > .explorer__link--root {
  padding-left: 1rem;
}

.explorer__link--child {
  margin-left: 1rem;
  padding-left: 1.25rem;
}

.explorer__link--index {
  color: var(--color-link);
}

.mobile-navigation {
  background: var(--color-surface);
  border: 0;
  border-right: 1px solid var(--color-border);
  height: 100dvh;
  inset: 0 auto 0 0;
  margin: 0;
  max-height: none;
  padding: 0;
  width: min(85vw, 20rem);
}

.mobile-navigation::backdrop {
  background: rgb(0 0 0 / 65%);
}

.mobile-navigation:popover-open {
  display: block;
}

.mobile-navigation__header {
  align-items: center;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  padding: 0.875rem 1rem;
}

.mobile-navigation__close {
  background: transparent;
  border: 0;
  color: var(--color-muted);
  cursor: pointer;
  font-size: 1.75rem;
  line-height: 1;
}

.mobile-navigation .explorer {
  padding: 1.25rem 1rem;
}

.site-main {
  background: color-mix(in srgb, var(--color-surface), transparent 8%);
  border: 1px solid var(--color-border);
  box-shadow: 0 1.5rem 5rem rgb(0 0 0 / 28%);
  margin: 0;
  max-width: none;
  min-height: 100%;
  padding: clamp(5rem, 14vw, 10rem) var(--space-page);
}

.site-main > * {
  max-width: var(--measure);
}

.listing-page > .entry-list {
  max-width: 64rem;
}

.site-main--locked > * {
  max-width: 58rem;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.button-link {
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 0.65rem 0.9rem;
  text-decoration: none;
}

.button-link:hover {
  background: color-mix(in srgb, var(--color-border), transparent 55%);
  color: var(--color-text);
}

.button-link--primary {
  border-color: var(--color-heading);
  color: var(--color-heading);
}

.about-hero {
  align-items: center;
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  grid-template-columns: minmax(0, var(--measure)) 12rem;
  max-width: 64rem;
}

.about-hero__copy > * + * {
  margin-top: 1.5rem;
}

.about-portrait {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--color-border);
  border-radius: 0.375rem;
  display: block;
  height: auto;
  object-fit: cover;
  width: 100%;
}

.site-main--locked {
  min-height: 70vh;
}

.site-main > * + * {
  margin-top: 1.5rem;
}

.site-main h1 {
  color: var(--color-heading);
  font-family: var(--font-mono);
  font-size: clamp(3rem, 14vw, 7rem);
  letter-spacing: 0;
}

.content-page h1,
.listing-page h1 {
  font-size: clamp(2.5rem, 10vw, 5rem);
}

.lede {
  color: var(--color-text);
  font-size: clamp(1.25rem, 4vw, 1.75rem);
  line-height: 1.35;
}

.site-main p:not(.eyebrow):not(.lede),
.content-page li {
  color: var(--color-muted);
  font-size: 1.0625rem;
}

.content-page h2 {
  border-top: 1px solid var(--color-border);
  color: var(--color-heading);
  font-size: clamp(1.5rem, 5vw, 2rem);
  margin-top: 3rem;
  padding-top: 2rem;
}

.content-page h3 {
  color: var(--color-heading);
  font-size: 1.25rem;
  margin-top: 2rem;
}

.content-page code {
  color: var(--color-accent);
  font-family: var(--font-mono);
}

.content-page img {
  border: 1px solid var(--color-border);
  display: block;
  height: auto;
  margin-inline: auto;
  max-height: 26rem;
  max-width: 100%;
  object-fit: contain;
  width: auto;
}

.content-page ul,
.content-page ol {
  color: var(--color-muted);
  padding-left: 1.25rem;
}

.entry-list {
  display: grid;
  gap: 1rem;
}

.entry-card {
  border-top: 1px solid var(--color-border);
  padding-top: 1.25rem;
}

.entry-card > * + * {
  margin-top: 0.75rem;
}

.entry-card h2 {
  font-size: 1.5rem;
}

.tag-list,
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
}

.tag-link {
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  padding: 0.2rem 0.5rem;
  text-decoration: none;
}

.tag-link:hover {
  border-color: var(--color-link);
}

.tag-cloud {
  max-width: 64rem;
}

.tag-cloud__link {
  align-items: center;
  border: 1px solid var(--color-border);
  display: flex;
  font-family: var(--font-mono);
  gap: 1rem;
  justify-content: space-between;
  min-width: 12rem;
  padding: 0.75rem 1rem;
  text-decoration: none;
}

.tag-cloud__link:hover {
  background: color-mix(in srgb, var(--color-border), transparent 65%);
}

.tag-cloud__count {
  color: var(--color-muted);
  font-size: 0.75rem;
}

.tag-results {
  max-width: 64rem;
}

.tag-results + .tag-results {
  margin-top: 3rem;
}

.tag-results > h2 {
  color: var(--color-heading);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.tag-results .entry-card h3 {
  font-size: 1.25rem;
}

@media (max-width: 56rem) {
  .site-header {
    padding-inline: var(--space-page);
    padding-block: 1rem;
  }

  .menu-button {
    background: transparent;
    border: 0;
    cursor: pointer;
    display: grid;
    gap: 0.22rem;
    padding: 0.35rem;
  }

  .menu-button span {
    background: var(--color-muted);
    display: block;
    height: 1px;
    width: 1.1rem;
  }

  .site-shell {
    display: block;
  }

  .desktop-navigation {
    display: none;
  }

  .site-main {
    min-height: calc(100vh - 3.75rem);
  }
}

@media (max-width: 44rem) {
  .about-hero {
    align-items: start;
    grid-template-columns: 1fr;
  }

  .about-portrait {
    grid-row: 1;
    width: min(11rem, 48vw);
  }
}

@media (min-width: 56.0625rem) {
  .mobile-navigation {
    display: none;
  }
}