/* enginetworker.com
   Plain CSS, no build step. Colors live in the tokens below. */

:root {
  color-scheme: light dark;

  --paper: #f5f3ec;
  --panel: #ece9df;
  --ink: #17211f;
  --muted: #55615e;
  --rule: #d3cfc2;
  --accent: #0a6b5c;
  --signal: #b4540a;
  --ph-bg: #ffe873;
  --ph-ink: #3d3000;
  --ph-line: #9a7b00;

  --mono: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, monospace;
  --text: "Sitka Text", Charter, "Bitstream Charter", Cambria, Georgia, serif;

  --gutter: clamp(1rem, 4vw, 2.5rem);
  --wide: 70rem;
  --measure: 40rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #101716;
    --panel: #18211f;
    --ink: #e6e9e3;
    --muted: #a0aca8;
    --rule: #2e3a37;
    --accent: #62d2b6;
    --signal: #f0a35e;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--text);
  font-size: 1.125rem;
  line-height: 1.65;
}

main {
  flex: 1;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

h1,
h2,
h3 {
  font-family: var(--mono);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  letter-spacing: -0.04em;
}

h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: 1.45rem;
}

h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

/* Layout */

.wrap {
  width: 100%;
  max-width: var(--wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 1;
  padding: 0.25rem 0.75rem;
  background: var(--paper);
}

/* Header and footer */

.site-header {
  border-bottom: 1px solid var(--rule);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem 2rem;
  padding-block: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand img {
  display: block;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.95rem;
}

.site-nav a {
  display: inline-block;
  padding-block: 0.4rem;
  color: var(--muted);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current] {
  color: var(--accent);
}

.site-nav a[aria-current] {
  box-shadow: 0 2px 0 var(--accent);
}

.site-footer {
  margin-top: 5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.25rem 2rem;
  padding-block: 1.5rem;
}

.site-footer a {
  color: inherit;
}

/* Home */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 2rem 3.5rem;
  align-items: center;
  padding-block: clamp(2.5rem, 7vw, 5rem);
}

.lede {
  max-width: 32rem;
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.5;
}

.topology {
  display: block;
  width: 100%;
  height: auto;
  max-width: 34rem;
  margin-inline: auto;
}

.topology .link {
  fill: none;
  stroke: var(--rule);
  stroke-width: 2;
}

.topology .pulse {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-dasharray: 8 200;
  animation: travel 5s linear infinite;
}

.topology .pulse-2 {
  animation-delay: -1.7s;
}

.topology .pulse-3 {
  animation-delay: -3.4s;
}

@keyframes travel {
  from {
    stroke-dashoffset: 208;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.topology .node rect {
  fill: var(--panel);
  stroke: var(--ink);
  stroke-width: 1.5;
  transition: stroke 120ms ease;
}

.topology .node text {
  fill: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 650;
  text-anchor: middle;
}

.topology .node .sub {
  fill: var(--muted);
  font-size: 11px;
  font-weight: 400;
}

.topology .port {
  fill: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.topology a.node:hover rect,
.topology a.node:focus-visible rect {
  stroke: var(--accent);
  stroke-width: 2.5;
}

.topology a.node:hover text:not(.sub) {
  fill: var(--accent);
}

.band {
  border-top: 1px solid var(--rule);
  padding-block: 2.5rem;
}

.band-grid {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 0.5rem 3rem;
}

.band-grid > h2 {
  margin: 0;
  font-size: 1rem;
  color: var(--muted);
}

.band-body > :first-child {
  margin-top: 0;
}

.band-body {
  max-width: var(--measure);
}

.facts {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 0.4rem 1.5rem;
  margin: 1.5rem 0 0;
}

.facts dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding-top: 0.15rem;
}

.facts dd {
  margin: 0;
  min-width: 0;
}

/* Page intros */

.page-head {
  padding-block: clamp(2.5rem, 6vw, 4rem) 1.5rem;
}

.page-head .lede {
  color: var(--muted);
}

/* Blog list and project entries */

.entries {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.entries > li {
  padding-block: 1.5rem;
  border-bottom: 1px solid var(--rule);
}

.entries h2,
.entries h3 {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

.entries p {
  max-width: var(--measure);
  margin: 0;
}

.meta {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.entries .meta {
  margin-bottom: 0.35rem;
}

.project {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 0.5rem 3rem;
}

.project h2 {
  grid-column: 2;
}

.project .meta {
  grid-column: 1;
  grid-row: 1 / span 2;
  margin: 0;
}

.project dl {
  grid-column: 2;
  max-width: var(--measure);
  margin: 0.25rem 0 0;
}

.project dt {
  margin-top: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.85rem;
}

.project dd {
  margin: 0;
}

/* Contact */

.contact-list {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: 0.75rem 2rem;
  max-width: var(--measure);
  margin: 0;
  padding-block: 1.5rem;
  border-block: 1px solid var(--rule);
}

.contact-list dt {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.9rem;
  padding-top: 0.15rem;
}

.contact-list dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

/* Post */

.post {
  max-width: var(--measure);
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

.post h1 {
  font-size: clamp(1.9rem, 5vw, 2.8rem);
}

.post-meta {
  margin: 0 0 2rem;
}

.post li {
  margin-bottom: 0.4rem;
}

.post-end {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 0.95rem;
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
}

pre {
  margin: 1.25rem 0;
  padding: 1rem 1.1rem;
  overflow-x: auto;
  background: var(--panel);
  border-left: 3px solid var(--accent);
  line-height: 1.5;
}

pre code {
  font-size: 0.82rem;
}

table {
  width: 100%;
  margin: 1.25rem 0;
  border-collapse: collapse;
  font-size: 1rem;
}

th,
td {
  padding: 0.5rem 0.75rem 0.5rem 0;
  border-bottom: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

th {
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 650;
  color: var(--muted);
}

.table-scroll {
  overflow-x: auto;
}

.note {
  margin: 1.5rem 0;
  padding: 0.75rem 1rem;
  background: var(--ph-bg);
  color: var(--ph-ink);
  border: 2px dashed var(--ph-line);
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* 404 */

.not-found {
  padding-block: clamp(3rem, 10vw, 7rem);
}

/* Narrow screens */

@media (max-width: 52rem) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
  }

  .band-grid,
  .project {
    grid-template-columns: minmax(0, 1fr);
  }

  .project h2,
  .project .meta,
  .project dl {
    grid-column: 1;
    grid-row: auto;
  }
}

@media (max-width: 30rem) {
  body {
    font-size: 1.0625rem;
  }

  .facts,
  .contact-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .facts dd,
  .contact-list dd {
    margin-bottom: 0.75rem;
  }
}

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

  .topology .pulse {
    animation: none;
    stroke-dasharray: none;
    stroke: var(--rule);
  }

  .topology .node rect {
    transition: none;
  }
}

/* PLACEHOLDERS
   Highlights every detail you still need to fill in.
   Delete this whole block once no [[TOKENS]] remain. */

.ph {
  padding: 0 0.3em;
  background: var(--ph-bg);
  color: var(--ph-ink);
  outline: 1px dashed var(--ph-line);
  font-family: var(--mono);
  font-size: 0.85em;
  overflow-wrap: anywhere;
}

/* END PLACEHOLDERS */