/* adrian11.fyi — self-hosted fonts (SIL OFL 1.1, @fontsource-variable 5.3.0) */
@font-face {
  font-family: "Bricolage Grotesque";
  src: url("/fonts/bricolage-grotesque-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 800; font-display: swap;
}
@font-face {
  font-family: "Figtree";
  src: url("/fonts/figtree-latin-wght-normal.woff2") format("woff2");
  font-weight: 300 900; font-display: swap;
}
@font-face {
  font-family: "Figtree";
  src: url("/fonts/figtree-latin-wght-italic.woff2") format("woff2");
  font-weight: 300 900; font-style: italic; font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/jetbrains-mono-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 800; font-display: swap;
}

/* ---- tokens -------------------------------------------------------------------------------------------- */
:root {
  --font-display: "Bricolage Grotesque", "Figtree", system-ui, sans-serif;
  --font-body: "Figtree", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --radius: 4px;
  --radius-sm: 3px;
  --wrap: 72rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --space-section: clamp(5rem, 12vw, 9rem);

  /* dark (default) — slate ink at night, under a desk lamp */
  --bg: #11151d;
  --bg-raised: #171c26;
  --bg-sunken: #0c0f15;
  --line: #262d3a;
  --text: #e9edf2;
  --text-muted: #a3aec0;
  --wattle: #f4c34f;
  --wattle-ink: #f4c34f;
  --on-wattle: #1a1406;
  --euc: #7fc8a9;
  --euc-ink: #7fc8a9;
  --coral: #ff8c7a;
  --coral-ink: #ff9b8b;
  --chassis-top: #2b3342;
  --chassis-edge: #3a4456;
  --bay: #12161f;
  --vent: #2a3140;
  --led-off: #2c3445;
}
:root[data-theme="light"] {
  --bg: #f5f7f6;
  --bg-raised: #fbfcfb;
  --bg-sunken: #e9eeec;
  --line: #d9e0dd;
  --text: #151a22;
  --text-muted: #4f5b6b;
  --wattle: #f4c34f;
  --wattle-ink: #8a5f00;
  --on-wattle: #1a1406;
  --euc: #7fc8a9;
  --euc-ink: #2f7a5b;
  --coral: #ff8c7a;
  --coral-ink: #b4483a;
  --chassis-top: #fbfcfb;
  --chassis-edge: #cfd7d4;
  --bay: #f2f5f4;
  --vent: #d5dcd9;
  --led-off: #cdd5d2;
}

/* ---- base ---------------------------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  scrollbar-color: var(--line) var(--bg);
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font: 400 1.0625rem/1.65 var(--font-body);
  background: var(--bg);
  color: var(--text);
  caret-color: var(--wattle);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color .35s var(--ease-out), color .35s var(--ease-out);
}
::selection { background: var(--wattle); color: var(--on-wattle); }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--line); border-radius: var(--radius-sm); border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; margin: 0; text-wrap: balance; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration-thickness: 1.5px; text-underline-offset: .22em; }
a:hover { text-decoration-color: var(--wattle); }
:focus-visible { outline: 2.5px solid var(--wattle); outline-offset: 3px; border-radius: 6px; }
time, .tabular { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.icon { width: 1.15em; height: 1.15em; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.wrap { width: min(100% - 2 * var(--gutter), var(--wrap)); margin-inline: auto; }

.skip {
  position: absolute; left: var(--gutter); top: -4rem; z-index: 20;
  background: var(--wattle); color: var(--on-wattle); padding: .6rem 1rem; border-radius: var(--radius-sm); font-weight: 600;
}
.skip:focus { top: 1rem; }

/* ---- header -------------------------------------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease-out), background-color .35s var(--ease-out);
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.header-row { display: flex; align-items: center; gap: 1.5rem; height: 4.25rem; }
.wordmark {
  font: 700 1.35rem/1 var(--font-display); letter-spacing: -0.03em; text-decoration: none; margin-right: auto;
}
.wordmark span { color: var(--wattle-ink); }
.nav { display: flex; gap: .25rem; }
.nav a {
  display: block; padding: .45rem .75rem; border-radius: var(--radius-sm); text-decoration: none;
  font-weight: 550; font-size: .97rem; color: var(--text-muted);
  transition: color .2s, background-color .2s;
}
.nav a:hover { color: var(--text); background: var(--bg-raised); }
.theme-toggle {
  display: grid; place-items: center; width: 2.6rem; height: 2.6rem; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--bg-raised); color: var(--text); cursor: pointer;
  transition: border-color .2s, transform .2s var(--ease-out);
}
.theme-toggle:hover { border-color: var(--text-muted); }
.theme-toggle svg { overflow: visible; }
.sun-core { fill: var(--wattle); transition: r .5s var(--ease-out); }
.sun-rays { stroke: var(--wattle); stroke-width: 1.8; stroke-linecap: round; transform-origin: 12px 12px; transition: transform .5s var(--ease-out), opacity .3s; }
.moon-bite { transition: cx .5s var(--ease-out), cy .5s var(--ease-out); }
/* dark theme shows the moon: a bigger core with a bite, no rays */
:root:not([data-theme="light"]) .sun-core { r: 8px; }
:root:not([data-theme="light"]) .moon-bite { cx: 17px; cy: 7px; }
:root:not([data-theme="light"]) .sun-rays { transform: rotate(-60deg) scale(.4); opacity: 0; }

/* ---- hero ---------------------------------------------------------------------------------------------- */
.hero {
  display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: center; gap: clamp(2rem, 5vw, 4rem);
  min-height: min(34rem, calc(100svh - 4.25rem)); padding-block: clamp(3rem, 7vw, 5rem) clamp(1rem, 3vw, 2rem);
}
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem); font-weight: 750; letter-spacing: -0.04em; line-height: .98;
}
.hero-title .ch { display: inline-block; will-change: transform; }
.hero-title .ch.dot { color: var(--wattle); }
.hero-lede { margin-top: 1.5rem; max-width: 36ch; font-size: clamp(1.15rem, 1.6vw, 1.32rem); color: var(--text-muted); }
.hero-lede em { color: var(--text); font-style: italic; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }
.hero-facts { display: flex; flex-wrap: wrap; gap: .5rem 1.75rem; margin-top: 2.5rem; color: var(--text-muted); font-size: .95rem; }
.hero-facts li { display: flex; align-items: center; gap: .5rem; }

.btn {
  display: inline-flex; align-items: center; gap: .55rem; padding: .85rem 1.3rem; border-radius: var(--radius-sm);
  font: 650 1rem/1 var(--font-body); text-decoration: none; cursor: pointer;
  transition: background-color .2s, border-color .2s, color .2s;
}
.btn-primary { background: var(--wattle); color: var(--on-wattle); }
.btn-primary:hover { background: color-mix(in srgb, var(--wattle) 82%, var(--text)); }
.btn-ghost { border: 1.5px solid var(--line); color: var(--text); background: transparent; }
.brand { width: 1.1em; height: 1.1em; fill: currentColor; flex: none; }
.btn-ghost:hover { border-color: var(--text-muted); background: var(--bg-raised); }

.hero-art { position: relative; display: grid; justify-items: center; }
.server {
  appearance: none; border: 0; background: none; padding: 0; cursor: pointer; width: min(100%, 26rem);
  border-radius: var(--radius); -webkit-tap-highlight-color: transparent;
}
.server svg { display: block; width: 100%; height: auto; overflow: visible; }
.server-body { transform-box: fill-box; transform-origin: 50% 100%; }
.chassis { fill: var(--chassis-top); }
.server-ground { fill: var(--line); }
.chassis-edge { fill: none; stroke: var(--chassis-edge); stroke-width: 1.5; }
:root[data-theme="light"] .bay-face { fill: var(--bay); }
.vents rect { fill: var(--vent); }
.led { fill: var(--led-off); transition: fill .12s; }
.led.on { fill: var(--euc); }
.led-b.on { fill: var(--wattle); }
.led.warn { fill: var(--coral); }
.power { fill: var(--euc); }
.sticker rect { fill: var(--wattle); }
.sticker text { font: 800 17px/1 var(--font-display); fill: var(--on-wattle); letter-spacing: -0.5px; }
.server-hint {
  margin-top: .75rem; font: 500 .95rem/1 var(--font-body); font-style: italic; color: var(--text-muted);
  opacity: 0; transform: translateY(4px); transition: opacity .4s var(--ease-out), transform .4s var(--ease-out);
}
.hero-art:hover .server-hint, .server:focus-visible + .server-hint { opacity: 1; transform: none; }

/* ---- sections ------------------------------------------------------------------------------------------ */
.section { padding-top: var(--space-section); }
.hero + .section { padding-top: clamp(3rem, 7vw, 5.5rem); }
.section-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .75rem 2rem; margin-bottom: 2.25rem; }
.section-head h2, .about h2, .contact h2 { font-size: clamp(2.1rem, 4.5vw, 3.25rem); font-weight: 720; letter-spacing: -0.035em; }
.section-head p { max-width: 42ch; color: var(--text-muted); }

/* write-ups: one feature, then a dense list */
.feature-link {
  display: grid; gap: 1rem; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); column-gap: clamp(1.5rem, 4vw, 3rem);
  padding: clamp(1.5rem, 4vw, 2.5rem); border-radius: var(--radius);
  background: var(--bg-raised); border: 1px solid var(--line); text-decoration: none;
  transition: border-color .25s;
}
.feature-link:hover { border-color: var(--text-muted); }
.feature-link:hover h3, .feature-link:focus-visible h3 { text-decoration: underline; text-decoration-color: var(--wattle); text-underline-offset: .15em; }
.feature-link > :not(.code-window) { grid-column: 1; }
.feature-meta { display: flex; gap: 1rem; color: var(--text-muted); font-size: .9rem; }
.feature-meta time { color: var(--wattle-ink); }
.feature h3 { font-size: clamp(1.6rem, 3.2vw, 2.35rem); font-weight: 680; letter-spacing: -0.03em; max-width: 24ch; }
.feature p { color: var(--text-muted); max-width: 68ch; }
.tags { display: flex; flex-wrap: wrap; gap: .45rem; }
.tag { font: 600 .8rem/1 var(--font-body); padding: .38rem .6rem; border-radius: var(--radius-sm); color: var(--text-muted); border: 1px solid var(--line); }
.read-more { font-weight: 650; color: var(--wattle-ink); text-decoration: underline; text-underline-offset: .22em; }
.post-list { margin-top: 1.25rem; }
.post-list a {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr) auto; align-items: baseline; gap: 1.25rem;
  padding: 1.1rem clamp(1rem, 2.5vw, 1.5rem); border-radius: var(--radius-sm); text-decoration: none;
  border-bottom: 1px solid var(--line); transition: background-color .2s;
}
.post-list li:last-child a { border-bottom-color: transparent; }
.post-list time { color: var(--text-muted); font-size: .88rem; }
.post-title { font: 600 1.12rem/1.35 var(--font-body); transition: color .2s; }
.post-tags { color: var(--text-muted); font-size: .88rem; }
.post-list a:hover { background: var(--bg-raised); }
.post-list a:hover .post-title { text-decoration: underline; text-decoration-color: var(--wattle); text-underline-offset: .2em; }
.code-window {
  grid-column: 2; grid-row: 1 / span 6; align-self: center; margin: 0; min-width: 0;
  background: var(--bg-sunken); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.code-window figcaption { padding: .55rem 1.1rem; border-bottom: 1px solid var(--line); font: 500 .78rem/1 var(--font-mono); color: var(--text-muted); }
.code-window pre { margin: 0; padding: 1rem 1.1rem 1.2rem; overflow-x: auto; font: 450 .84rem/1.7 var(--font-mono); color: var(--text); tab-size: 2; }
.code-window .k { color: var(--euc-ink); } .code-window .s { color: var(--wattle-ink); } .code-window .c { color: var(--text-muted); font-style: italic; }

/* projects: full-width rows, each with its own tint and a hover sweep */
.projects { border-top: 1px solid var(--line); }
.project {
  position: relative; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr) 12.5rem;
  align-items: center; gap: 1rem clamp(1.25rem, 3vw, 2.5rem); padding: 1.6rem clamp(.75rem, 2vw, 1.25rem);
  border-bottom: 1px solid var(--line); isolation: isolate;
}
.project h3 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 700; letter-spacing: -0.03em; }
.project h3 a { text-decoration: none; }
.project:hover h3 a { text-decoration: underline; text-decoration-color: var(--wattle); text-underline-offset: .15em; }
.project h3 a::after { content: ""; position: absolute; inset: 0; }
.project h3 a:focus-visible { outline: none; }
.project:has(a:focus-visible) { outline: 2.5px solid var(--wattle); outline-offset: 2px; border-radius: var(--radius-sm); }
.project p { color: var(--text-muted); max-width: 52ch; }
.stack { display: flex; flex-wrap: wrap; gap: .4rem; justify-content: flex-end; }
.stack li { font: 600 .8rem/1 var(--font-body); color: var(--text-muted); padding: .4rem .6rem; border: 1px solid var(--line); border-radius: var(--radius-sm); }

/* about */
.about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 1.5rem clamp(2rem, 6vw, 5rem); align-items: start; }
.about-body { display: grid; gap: 1.1rem; max-width: 66ch; color: var(--text-muted); }
.about-lead { font: 600 clamp(1.3rem, 2.2vw, 1.6rem)/1.4 var(--font-display); letter-spacing: -0.015em; color: var(--text); }
.about-body a { color: var(--text); }

/* contact: the closing band */
.contact { margin-top: var(--space-section); padding-block: clamp(4rem, 10vw, 7rem); background: var(--wattle); color: var(--on-wattle); }
.contact ::selection { background: var(--on-wattle); color: var(--wattle); }
.contact-inner { display: grid; gap: 1.25rem; justify-items: start; }
.contact h2 { font-size: clamp(3rem, 9vw, 6rem); letter-spacing: -0.045em; }
.contact p { max-width: 44ch; font-size: 1.15rem; color: color-mix(in srgb, var(--on-wattle) 82%, var(--wattle)); }
.contact-links { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }
.contact-links a {
  display: inline-flex; align-items: center; gap: .55rem; padding: .8rem 1.15rem; border-radius: var(--radius-sm);
  background: var(--on-wattle); color: var(--wattle); font-weight: 650; text-decoration: none;
  transition: background-color .2s, color .2s;
}
.contact-links a:hover { background: transparent; color: var(--on-wattle); outline: 1.5px solid var(--on-wattle); outline-offset: -1.5px; }
.contact :focus-visible { outline-color: var(--on-wattle); }

.site-footer { background: var(--wattle); color: var(--on-wattle); border-top: 1px solid color-mix(in srgb, var(--on-wattle) 18%, transparent); }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; padding-block: 1.5rem; font-size: .92rem; }
.to-top { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; }
.site-footer :focus-visible { outline-color: var(--on-wattle); }

/* ---- 404 --------------------------------------------------------------------------------------------- */
.notfound { min-height: 100svh; display: grid; align-content: center; justify-items: start; gap: 1.5rem; padding-block: 3rem; }
.notfound .wordmark { margin-right: 0; }
.notfound h1 { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 750; letter-spacing: -0.04em; }
.notfound p { color: var(--text-muted); max-width: 40ch; font-size: 1.15rem; }

.prose { max-width: 62ch; }
.prose h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; margin-top: .75rem; }
.prose p { max-width: none; font-size: 1.05rem; }

/* ---- responsive ---------------------------------------------------------------------------------------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero-art { order: -1; }
  .server { width: min(70%, 17rem); }
  .server-hint { display: none; }
  .project { grid-template-columns: 1fr; align-items: start; gap: .6rem; }
  .stack { justify-content: flex-start; }
  .feature-link { grid-template-columns: minmax(0, 1fr); }
  .code-window { grid-column: 1; grid-row: auto; min-width: 0; }
  .about { grid-template-columns: 1fr; }
  .post-list a { grid-template-columns: minmax(0, 1fr); gap: .2rem; }
  .post-list time { grid-column: 1; grid-row: 1; }
  .post-title { grid-column: 1; grid-row: 2; }
  .post-tags { grid-column: 1; grid-row: 3; }
  }
@media (max-width: 560px) {
  .header-row { gap: .5rem; }
  .nav a { padding: .45rem .55rem; font-size: .92rem; }
  .nav li:nth-child(2), .nav li:nth-child(3) { display: none; }
}

/* ---- motion preferences -------------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}