/* Tokens ---------------------------------------------------------------- */

:root {
  --bg: #f7f5ef;
  --surface: #fffdf8;
  --surface-2: #efebe1;
  --ink: #1b1f24;
  --muted: #5a6168;
  --line: #ddd8cc;
  --accent: #00788f;
  --accent-strong: #005d6f;
  --accent-soft: rgba(0, 120, 143, 0.09);
  --amber: #cf8f1f;
  --shadow: 0 1px 2px rgba(27, 31, 36, 0.05), 0 8px 24px rgba(27, 31, 36, 0.06);
  --surface-hover: #f3f0e7;
  --line-hover: color-mix(in srgb, var(--ink) 32%, var(--line));
  --footer-bg: #1b1f24;
  --footer-ink: #c3c8cc;
  --footer-strong: #f7f5ef;
  --footer-line: rgba(247, 245, 239, 0.16);

  --serif: "Iowan Old Style", "Charter", "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  --radius: 16px;
  --header-h: 3.75rem;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1417;
    --surface: #151c20;
    --surface-2: #121a1e;
    --ink: #e6eae8;
    --muted: #9ba7ac;
    --line: #26323a;
    --accent: #4cc3d4;
    --accent-strong: #86dbe6;
    --accent-soft: rgba(76, 195, 212, 0.1);
    --amber: #e9b44e;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    --surface-hover: #11171a;
    --footer-bg: #0a0e10;
    --footer-ink: #9ba7ac;
    --footer-strong: #e6eae8;
    --footer-line: rgba(230, 234, 232, 0.12);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f1417;
  --surface: #151c20;
  --surface-2: #121a1e;
  --ink: #e6eae8;
  --muted: #9ba7ac;
  --line: #26323a;
  --accent: #4cc3d4;
  --accent-strong: #86dbe6;
  --accent-soft: rgba(76, 195, 212, 0.1);
  --amber: #e9b44e;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  --surface-hover: #11171a;
  --footer-bg: #0a0e10;
  --footer-ink: #9ba7ac;
  --footer-strong: #e6eae8;
  --footer-line: rgba(230, 234, 232, 0.12);
  color-scheme: dark;
}

/* Base ------------------------------------------------------------------ */

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

html {
  scroll-behavior: smooth;
  overscroll-behavior-y: none;
  scroll-padding-top: calc(var(--header-h) + 1rem);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
[hidden] { display: none !important; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.005em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.wrap {
  max-width: 70rem;
  margin-inline: auto;
  padding-inline: max(1rem, env(safe-area-inset-left, 0px), min(4vw, 2.5rem));
}

.skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 100;
  padding: 0.5rem 0.9rem;
  background: var(--ink);
  color: var(--bg);
  border-radius: 8px;
}
.skip:focus { top: 0.75rem; }

.icon {
  width: 1.1em;
  height: 1.1em;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-fill { fill: currentColor; stroke: none; }

/* Header ---------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}

.bar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--header-h);
}

.nav { flex: 1; min-width: 0; margin-left: -0.7rem; }
.nav ul { display: flex; gap: 0.25rem; }
.nav a {
  display: block;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.93rem;
  white-space: nowrap;
  transition: color 0.15s, background-color 0.15s;
}
.nav a:hover { color: var(--ink); background: var(--accent-soft); }
.nav a[aria-current="true"] { color: var(--accent-strong); background: var(--accent-soft); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s, background-color 0.15s;
}
.theme-toggle:hover { border-color: var(--line-hover); background: var(--surface-hover); }
.theme-toggle .icon { width: 1.25rem; height: 1.25rem; }
.icon-sun { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: block; }
  :root:not([data-theme="light"]) .icon-moon { display: none; }
}

/* Hero ------------------------------------------------------------------ */

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(0.5rem, 2vw, 1.5rem);
  background: radial-gradient(56rem 28rem at 80% 0%, var(--accent-soft), transparent 72%);
}

.eyebrow, .kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin-top: 0.8rem;
  font-size: clamp(2.1rem, 4.4vw, 3.3rem);
  letter-spacing: -0.02em;
  line-height: 1.02;
}

.lede {
  margin-top: 1.4rem;
  max-width: 40rem;
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  line-height: 1.55;
  color: var(--ink);
}

.hero-meta {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.98rem;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color 0.15s, background-color 0.15s;
}
.btn:hover { color: var(--ink); border-color: var(--line-hover); background: var(--surface-hover); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }
.btn-primary:hover { background: var(--accent-strong); border-color: var(--accent-strong); color: var(--bg); }

/* Sections -------------------------------------------------------------- */

.section { padding-block: clamp(2rem, 4.5vw, 3.25rem); }
.section-alt {
  background: var(--surface-2);
  border-block: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 0.8rem;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.section-head .kicker { font-size: 0.95rem; letter-spacing: 0.04em; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.5rem); }
.section-intro { flex-basis: 100%; margin-top: 0.5rem; color: var(--muted); }

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.prose { max-width: 40rem; }
.prose p + p { margin-top: 1.1rem; }

.facts {
  padding: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.facts h3 {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.interest-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.9rem;
}
.interest-list a {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.86rem;
  line-height: 1.35;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;
}
.interest-list a:hover, .interest-list a:focus-visible {
  background: var(--accent);
  color: var(--bg);
}

/* Software */

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 28rem), 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
}

.project {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.project-head { display: flex; align-items: center; gap: 1.1rem; }
.project-head img {
  width: 5.5rem;
  height: 5.5rem;
  flex: none;
  border-radius: 50%;
}
.project-logo { flex: none; display: block; border-radius: 50%; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.12); }
.project-head img { pointer-events: none; -webkit-user-select: none; user-select: none; }
.project-logo:hover img { filter: brightness(0.87); }
.project h3 { font-size: 1.6rem; }
.project-tagline { margin-top: 0.2rem; color: var(--muted); font-size: 0.95rem; }
.project > p { font-size: 0.98rem; line-height: 1.62; }

.tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: auto; }
.tags li {
  padding: 0.12rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--muted);
}
.tags li { cursor: default; transition: border-color 0.15s, background-color 0.15s, color 0.15s; }
.tags li:hover { border-color: var(--line-hover); background: var(--surface-hover); color: var(--ink); }

.install {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.35rem 0.35rem 0.9rem;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.install code {
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 0.86rem;
  scrollbar-width: none;
}
.install code::-webkit-scrollbar { display: none; }
.prompt { color: var(--accent); margin-right: 0.35rem; user-select: none; }

.copy {
  flex: none;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  color: var(--muted);
  font: 500 0.78rem var(--sans);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.copy:hover { color: var(--ink); border-color: var(--line-hover); background: var(--surface-hover); }
.copy.is-copied { color: var(--accent-strong); border-color: var(--accent); }

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}
.project-links a {
  font-size: 0.93rem;
  font-weight: 500;
  text-decoration: none;
}
.project-links a::after { content: " ↗"; font-size: 0.8em; opacity: 0.7; }
.project-links a:hover { text-decoration: underline; }

/* Publications */


.pub {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 1.25rem;
  padding-block: 0.7rem;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}
.pub:last-child { border-bottom: 0; }

.pub-year {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  padding-top: 0.2rem;
}

.pub-title { font-family: var(--serif); font-size: 1.14rem; font-weight: 600; line-height: 1.4; }
.pub-title a { color: var(--ink); text-decoration: none; }
.pub-title a:hover { color: color-mix(in srgb, var(--ink) 72%, var(--accent)); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent); }
.pub-authors { max-width: 44rem; margin-top: 0.2rem; font-size: 0.93rem; color: var(--muted); }
.me { color: var(--ink); text-decoration: underline; text-decoration-color: var(--accent); text-decoration-thickness: 2px; text-underline-offset: 0.2em; }
.pub-venue { margin-top: 0.1rem; font-size: 0.93rem; color: var(--muted); }

.pub-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.45rem;
  margin-top: 0.45rem;
}

.chip, .badge {
  display: inline-flex;
  align-items: center;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  line-height: 1.5;
  font-weight: 500;
}
.chip {
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.chip:hover { color: var(--ink); border-color: var(--line-hover); background: var(--surface-hover); }
.badge { background: color-mix(in srgb, var(--amber) 16%, transparent); color: color-mix(in srgb, var(--amber) 70%, var(--ink)); }
.badge-soft { background: var(--accent-soft); color: var(--accent-strong); }
.badge { cursor: default; transition: background-color 0.15s; }
.badge:hover { background: color-mix(in srgb, var(--amber) 28%, transparent); }
.badge-soft:hover { background: color-mix(in srgb, var(--accent) 20%, transparent); }

button.chip { font: 500 0.78rem/1.5 var(--sans); }
.bib-toggle[aria-expanded="true"] { color: var(--ink); border-color: var(--line-hover); }
.bib-box { position: relative; margin-top: 0.6rem; }
.bib-box pre {
  margin: 0;
  padding: 1rem 1.1rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  font: 0.78rem/1.6 var(--mono);
  color: var(--ink);
}
.section-alt .bib-box pre { background: var(--surface); }
.bib-box .copy { position: absolute; top: 0.5rem; right: 0.5rem; }

/* Background timeline */

.entry-title { font-weight: 550; line-height: 1.45; }
.entry-sub { margin-top: 0.15rem; font-size: 0.93rem; color: var(--muted); line-height: 1.55; }

/* Background timeline */

.timeline { position: relative; max-width: 50rem; }
.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 2rem;
  padding-bottom: 1.3rem;
}
.timeline li:last-child { padding-bottom: 0; }
.tl-date { font-family: var(--mono); font-size: 0.85rem; color: var(--muted); padding-top: 0.15rem; text-align: right; }
.tl-body { position: relative; padding-left: 1.75rem; }
.tl-body::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: -1.85rem;
  width: 2px;
  background: var(--line);
}
.timeline li:last-child .tl-body::before { bottom: 0; background: linear-gradient(var(--line), transparent); }
.tl-body::after {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.4rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}
.timeline li:first-child .tl-body::after { background: var(--accent); }

/* Footer */

.site-footer {
  padding-block: clamp(2.25rem, 5vw, 3.25rem) calc(1.25rem + env(safe-area-inset-bottom, 0px));
  background: var(--footer-bg);
  color: var(--footer-ink);
  border-top: 1px solid var(--footer-line);
}
.site-footer a { color: var(--footer-strong); }
.site-footer a:hover { color: color-mix(in srgb, var(--footer-strong) 78%, var(--accent)); }

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
}
.footer-title { font-size: clamp(1.7rem, 3vw, 2.2rem); color: var(--footer-strong); }
.footer-text { margin-top: 0.7rem; max-width: 32rem; }
.footer-links { display: grid; gap: 0.6rem; justify-items: start; margin-left: clamp(0rem, 4vw, 3.5rem); }
.footer-links a { display: inline-flex; align-items: center; gap: 0.65rem; text-decoration: none; }
.footer-links a span { border-bottom: 1px solid var(--footer-line); }
.footer-links a:hover span { border-color: color-mix(in srgb, var(--footer-strong) 40%, transparent); }
.footer-links .icon { width: 1.15rem; height: 1.15rem; opacity: 0.9; }

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--footer-line);
  font-size: 0.85rem;
}
.footer-meta { align-items: center; flex-wrap: nowrap; }
.footer-meta p { flex: 1; }
.to-top {
  display: grid;
  place-items: center;
  width: 2.3rem;
  height: 2.3rem;
  border: 1px solid var(--footer-line);
  border-radius: 999px;
  transition: border-color 0.15s, background-color 0.15s;
}
.to-top:hover { border-color: currentColor; background: var(--footer-line); }
.to-top .icon { width: 1.05rem; height: 1.05rem; }

/* Overscroll easter egg */

.mrca {
  position: fixed;
  top: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  left: 0;
  right: 0;
  z-index: 40;
  height: 3.5rem;
  padding: 0.35rem 1rem 0;
  pointer-events: none;
  opacity: 0;
}
.mrca svg { width: 100%; height: 100%; }
.mrca path {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}
.mrca circle { fill: var(--amber); transform-box: fill-box; transform-origin: center; transform: scale(0); }

.egg-play main, .egg-play .site-footer { animation: egg-budge 1.5s both; }
.egg-play .mrca { animation: egg-rim 1.5s both; }
.egg-play .mrca path { animation: egg-draw 1.5s both; }
.egg-play .mrca circle { animation: egg-root 1.5s both; }

@keyframes egg-budge {
  0% { transform: none; animation-timing-function: cubic-bezier(0.2, 0.9, 0.3, 1); }
  18%, 68% { transform: translateY(3.5rem); animation-timing-function: cubic-bezier(0.5, 0, 0.3, 1.25); }
  100% { transform: none; }
}
@keyframes egg-rim { 0% { opacity: 0; } 10%, 70% { opacity: 1; } 88%, 100% { opacity: 0; } }
@keyframes egg-draw { 0%, 14% { stroke-dashoffset: 1; } 52%, 100% { stroke-dashoffset: 0; } }
@keyframes egg-root {
  0%, 50% { transform: scale(0); }
  58% { transform: scale(1.5); }
  64%, 100% { transform: scale(1); }
}

/* Responsive ------------------------------------------------------------ */

@media (max-width: 880px) {
  .about-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 760px) {
  .bar { gap: 0.5rem; }
  .nav { margin-left: -0.65rem; overflow-x: auto; scrollbar-width: none; -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent); mask-image: linear-gradient(90deg, #000 85%, transparent); }
  .nav::-webkit-scrollbar { display: none; }
  .nav ul { padding-right: 1.5rem; }
  .nav a { padding: 0.35rem 0.65rem; font-size: 0.9rem; }

  .pub { grid-template-columns: minmax(0, 1fr); gap: 0.25rem; padding-block: 0.8rem; }
  .pub-year { padding-top: 0; font-size: 0.78rem; }
  .pub-title { font-size: 1.06rem; }

  .timeline li { grid-template-columns: minmax(0, 1fr); gap: 0.15rem; padding-left: 1.75rem; }
  .tl-date { text-align: left; }
  .tl-body { position: static; padding-left: 0; }
  .timeline li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55rem;
    bottom: -0.55rem;
    width: 2px;
    background: var(--line);
  }
  .timeline li:last-child::before { bottom: 0; background: linear-gradient(var(--line), transparent); }
  .tl-body::before { display: none; }
  .tl-body::after { left: -5px; top: 0.4rem; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .footer-links { margin-left: 0; }
}

@media (max-width: 420px) {
  body { font-size: 1rem; }
  .project-head img { width: 4.5rem; height: 4.5rem; }
  .project h3 { font-size: 1.4rem; }
  .install { padding-left: 0.7rem; }
  .install code { font-size: 0.8rem; }
  .prompt { display: none; }
}

/* Side rail navigation on wide screens */

@media (min-width: 1100px) {
  :root { --rail-w: 12rem; }
  html { scroll-padding-top: 1.5rem; }

  .site-header {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--rail-w);
    padding-top: 0;
    background: var(--bg);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .site-header .bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    height: 100%;
    min-height: 0;
    max-width: none;
    margin: 0;
    padding: 2.25rem 1.75rem 1.75rem;
  }

  .nav { flex: none; margin: 0; }
  .nav ul {
    position: relative;
    flex-direction: column;
    gap: 0;
    --i: 0;
  }
  .nav ul::before, .nav ul::after {
    content: "";
    position: absolute;
    left: 0;
    width: 14px;
    -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 14 42%22 preserveAspectRatio=%22none%22%3E%3Cg fill=%22none%22 stroke=%22%23000%22 stroke-width=%221.7%22 stroke-linecap=%22round%22%3E%3Cpath d=%22M11 0C11 10.5 3 10.5 3 21C3 31.5 11 31.5 11 42%22/%3E%3Cpath d=%22M3 0C3 10.5 11 10.5 11 21C11 31.5 3 31.5 3 42%22/%3E%3Cpath d=%22M4.5 21H9.5%22 stroke-width=%221.4%22/%3E%3C/g%3E%3C/svg%3E") 0 0 / 14px 2.6rem repeat-y;
    mask: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 14 42%22 preserveAspectRatio=%22none%22%3E%3Cg fill=%22none%22 stroke=%22%23000%22 stroke-width=%221.7%22 stroke-linecap=%22round%22%3E%3Cpath d=%22M11 0C11 10.5 3 10.5 3 21C3 31.5 11 31.5 11 42%22/%3E%3Cpath d=%22M3 0C3 10.5 11 10.5 11 21C11 31.5 3 31.5 3 42%22/%3E%3Cpath d=%22M4.5 21H9.5%22 stroke-width=%221.4%22/%3E%3C/g%3E%3C/svg%3E") 0 0 / 14px 2.6rem repeat-y;
  }
  .nav ul::before { top: 0; bottom: 0; background: color-mix(in srgb, var(--ink) 22%, var(--line)); }
  .nav ul::after {
    top: 0;
    height: 2.6rem;
    background: var(--accent);
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 14 42%22 preserveAspectRatio=%22none%22%3E%3Cg fill=%22none%22 stroke=%22%23000%22 stroke-width=%222.7%22 stroke-linecap=%22round%22%3E%3Cpath d=%22M11 1C11 10.5 3 10.5 3 21C3 31.5 11 31.5 11 41%22/%3E%3Cpath d=%22M3 1C3 10.5 11 10.5 11 21C11 31.5 3 31.5 3 41%22/%3E%3Cpath d=%22M4.5 21H9.5%22 stroke-width=%222.3%22/%3E%3C/g%3E%3C/svg%3E");
    mask-image: url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 14 42%22 preserveAspectRatio=%22none%22%3E%3Cg fill=%22none%22 stroke=%22%23000%22 stroke-width=%222.7%22 stroke-linecap=%22round%22%3E%3Cpath d=%22M11 1C11 10.5 3 10.5 3 21C3 31.5 11 31.5 11 41%22/%3E%3Cpath d=%22M3 1C3 10.5 11 10.5 11 21C11 31.5 3 31.5 3 41%22/%3E%3Cpath d=%22M4.5 21H9.5%22 stroke-width=%222.3%22/%3E%3C/g%3E%3C/svg%3E");
    filter: drop-shadow(0 0 4px color-mix(in srgb, var(--accent) 85%, transparent));
    transform: translateY(calc(var(--i) * 2.6rem));
    transition: transform 0.45s cubic-bezier(0.3, 0.7, 0.2, 1);
  }
  .nav a, .nav a:hover, .nav a[aria-current="true"] { background: transparent; }
  .nav a {
    display: flex;
    align-items: center;
    height: 2.6rem;
    padding: 0 0 0 1.95rem;
    border-radius: 0;
    font-size: 0.95rem;
    transition: color 0.15s;
  }
  .nav a:hover { color: var(--ink); }
  .nav a[aria-current="true"] { color: var(--accent-strong); font-weight: 600; }

  .theme-toggle { margin-top: auto; }

  .mrca { top: 0; left: var(--rail-w); }

  main .wrap, .site-footer .wrap {
    max-width: 64rem;
    margin-left: calc(var(--rail-w) + max(2rem, (100% - var(--rail-w) - 64rem) / 2));
    margin-right: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}

@media print {
  .site-header, .theme-toggle, .copy, .bib-toggle, .bib-box, .skip, .link-row { display: none !important; }
  body { background: #fff; color: #000; }
  .section-alt, .hero, .site-footer { background: none; border: 0; color: #000; }
  .site-footer a, .footer-title { color: #000; }
  .project, .facts { box-shadow: none; break-inside: avoid; }
  .pub { break-inside: avoid; }
}