:root {
  --bg: #f2f4f7;
  --surface: #ffffff;
  --ink: #15202b;
  --muted: #56616e;
  --rule: #d5dbe3;
  --accent: #2b3fd6;
  --curve: #0e8c7f;
  --mark: #b97c00;
  --code-bg: #e8ecf2;
  --night: #1c213e;
  --display: "Archivo", system-ui, sans-serif;
  --body: "Literata", Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e141b; --surface: #151d26; --ink: #e3e8ee; --muted: #93a0ae; --rule: #26313d;
    --accent: #8c9bff; --curve: #5eead4; --mark: #ffc45c; --code-bg: #1b2530; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e141b; --surface: #151d26; --ink: #e3e8ee; --muted: #93a0ae; --rule: #26313d;
  --accent: #8c9bff; --curve: #5eead4; --mark: #ffc45c; --code-bg: #1b2530; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 17px/1.6 var(--display); font-variation-settings: "wdth" 100;
}
a { color: var(--accent); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
img { max-width: 100%; height: auto; }

.bar {
  max-width: 1120px; margin: 0 auto; padding: 14px 16px;
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 700; }
.brand svg { width: 28px; height: 28px; image-rendering: pixelated; }
.bar nav { display: flex; gap: 18px; margin-left: auto; flex-wrap: wrap; }
.bar nav a { color: var(--muted); text-decoration: none; font-size: 15px; }
.bar nav a:hover, .bar nav a[aria-current] { color: var(--ink); }
.theme {
  border: 1px solid var(--rule); background: var(--surface); color: var(--ink);
  width: 34px; height: 34px; border-radius: 8px; cursor: pointer; display: grid; place-items: center;
}
.theme svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; }
:root .moon, :root[data-theme="dark"] .sun { display: none; }
:root[data-theme="dark"] .moon { display: block; }

.room { background: var(--night); }
.room img {
  display: block; width: 100%; max-width: 1920px; margin: 0 auto;
  image-rendering: pixelated; aspect-ratio: 1920 / 732;
}

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
.intro { padding: 56px 0 40px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; }
.intro h1 {
  font: 800 clamp(34px, 6vw, 68px)/1.02 var(--display); font-variation-settings: "wdth" 118;
  letter-spacing: -0.02em; margin: 0; max-width: 15ch;
}
.intro p { margin: 0; max-width: 62ch; font-size: 19px; color: var(--muted); }
.intro p strong { color: var(--ink); font-weight: 600; }
.links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 9px 16px; border-radius: 999px;
  border: 1px solid var(--rule); background: var(--surface); color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 500;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--bg); }

.sec { padding: 40px 0; border-top: 1px solid var(--rule); }
.sec > .wrap > h2 {
  font: 800 28px/1.1 var(--display); font-variation-settings: "wdth" 112; margin: 0 0 6px; letter-spacing: -0.01em;
}
.sec > .wrap > .sub { margin: 0 0 28px; color: var(--muted); max-width: 66ch; }

.lead-work {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 32px; align-items: center;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 28px; margin-bottom: 18px;
}
.lead-work h3 { font: 700 26px/1.15 var(--display); font-variation-settings: "wdth" 108; margin: 6px 0 10px; }
.lead-work h3 a { color: var(--ink); text-decoration: none; }
.lead-work h3 a:hover { color: var(--accent); }
.lead-work p { margin: 0 0 12px; color: var(--muted); }
.when { font-size: 14px; color: var(--muted); }
.live { color: var(--curve); font-weight: 600; }
.score { font: 500 15px/1.4 var(--mono); color: var(--ink); }
.score b { color: var(--mark); font-weight: 600; }
.chart svg { width: 100%; height: auto; display: block; }
.chart figcaption { font-size: 13px; color: var(--muted); margin-top: 6px; }

.rows { list-style: none; margin: 0; padding: 0; }
.rows li {
  display: grid; grid-template-columns: 92px minmax(0, 1fr) 230px; gap: 24px;
  padding: 22px 0; border-bottom: 1px solid var(--rule);
}
.rows li:last-child { border-bottom: 0; }
.rows h3 { font: 700 20px/1.25 var(--display); margin: 0 0 6px; }
.rows h3 a { color: var(--ink); text-decoration: none; }
.rows h3 a:hover { color: var(--accent); }
.rows p { margin: 0; color: var(--muted); }
.rows .res { font: 500 14px/1.5 var(--mono); }
.rows .res b { color: var(--mark); font-weight: 600; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.tags span { font-size: 12.5px; padding: 2px 9px; border-radius: 999px; background: var(--code-bg); color: var(--muted); }

.grid2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 40px; }
.compact { list-style: none; padding: 0; margin: 0; }
.compact li { padding: 12px 0; border-bottom: 1px solid var(--rule); }
.compact li b { display: block; font-weight: 600; }
.compact li span { color: var(--muted); font-size: 15px; }

footer { border-top: 1px solid var(--rule); padding: 32px 0 48px; color: var(--muted); font-size: 15px; }
footer .wrap { display: flex; gap: 20px; flex-wrap: wrap; justify-content: space-between; }

/* write-up pages */
.paper { max-width: 760px; margin: 0 auto; padding: 40px 16px 64px; }
.back { font-size: 15px; text-decoration: none; }
.paper h1 {
  font: 800 clamp(30px, 5vw, 46px)/1.08 var(--display); font-variation-settings: "wdth" 114;
  letter-spacing: -0.015em; margin: 18px 0 14px;
}
.meta { display: flex; flex-wrap: wrap; gap: 8px 18px; color: var(--muted); font-size: 15px; margin-bottom: 20px; }
.paper .links { margin-bottom: 28px; }
.abstract {
  font: 400 18px/1.7 var(--body); background: var(--surface); border-left: 3px solid var(--accent);
  padding: 18px 22px; border-radius: 0 10px 10px 0; margin: 0 0 32px;
}
.paper section { margin-top: 40px; }
.paper h2 {
  font: 700 24px/1.2 var(--display); font-variation-settings: "wdth" 108; margin: 0 0 12px;
  display: flex; gap: 12px; align-items: baseline;
}
.paper h2 .n { font: 500 15px var(--mono); color: var(--muted); }
.paper h3 { font: 700 18px/1.3 var(--display); margin: 26px 0 8px; }
.paper p, .paper li { font: 400 17.5px/1.75 var(--body); }
.paper ul, .paper ol { padding-left: 22px; }
.paper code { font: 14.5px var(--mono); background: var(--code-bg); padding: 1px 5px; border-radius: 4px; }
.toc { font-size: 15px; border: 1px solid var(--rule); border-radius: 10px; padding: 14px 20px; margin-bottom: 8px; }
.toc ol { margin: 6px 0 0; padding-left: 20px; }
.toc li { font: 400 15px/1.8 var(--display); }
.table-wrap { overflow-x: auto; margin: 16px 0; border: 1px solid var(--rule); border-radius: 10px; }
table { border-collapse: collapse; width: 100%; font-size: 14.5px; background: var(--surface); }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; color: var(--muted); font-size: 13.5px; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
.note {
  font: 400 15.5px/1.6 var(--display); color: var(--muted); border: 1px dashed var(--rule);
  border-radius: 10px; padding: 12px 16px; margin: 18px 0;
}
figure { margin: 22px 0; }
figure svg { width: 100%; height: auto; display: block; }
figcaption { font-size: 14px; color: var(--muted); margin-top: 8px; }
.pager { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid var(--rule); margin-top: 48px; padding-top: 20px; font-size: 15px; }

@media (max-width: 860px) {
  .lead-work { grid-template-columns: minmax(0, 1fr); padding: 20px; }
  .rows li { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .grid2 { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }
.foot-links { display: flex; gap: 18px; }