:root {
  --bg: #efeee9;
  --ink: #111110;
  --mute: #75746e;
  --line: rgba(17, 17, 16, 0.14);
  --accent: #111110;
  --pad: clamp(20px, 4vw, 56px);
  --font: "Helvetica Neue", "Inter", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.65, 0, 0.35, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0e0d;
    --ink: #efeee9;
    --mute: #8a8984;
    --line: rgba(239, 238, 233, 0.16);
    --accent: #efeee9;
    color-scheme: dark;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
::selection { background: var(--ink); color: var(--bg); }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }

.skip-link {
  position: fixed; left: var(--pad); top: -80px; z-index: 100;
  background: var(--ink); color: var(--bg); padding: 8px 14px;
}
.skip-link:focus { top: 12px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}

.display {
  font-weight: 600;
  font-size: clamp(36px, 10.5vw, 190px);
  line-height: 0.98;
  letter-spacing: -0.045em;
}
.display--sm { font-size: clamp(34px, 6vw, 88px); line-height: 1.06; letter-spacing: -0.035em; }

.text-link { font-size: 14px; color: var(--mute); transition: color 0.3s; }
.text-link:hover { color: var(--ink); }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; justify-content: space-between; align-items: center;
  padding: 22px var(--pad);
  mix-blend-mode: difference;
  color: #fff;
}
.brand { font-weight: 600; font-size: 20px; letter-spacing: -0.03em; }
.brand i { font-style: normal; }
.site-nav { display: flex; gap: clamp(18px, 3vw, 40px); font-size: 14px; }
.site-nav a { position: relative; padding: 2px 0; }
.site-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right; transition: transform 0.5s var(--ease);
}
.site-nav a:hover::after, .site-nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }

main { min-height: 100vh; padding-top: 0; }

.page-head { padding: clamp(140px, 24vh, 260px) var(--pad) clamp(40px, 8vh, 90px); }
.page-head .eyebrow { margin-bottom: 28px; }

.block { padding: clamp(56px, 10vh, 120px) var(--pad); }
.block__head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid var(--line);
}
.block__head h2 { font-size: 14px; font-weight: 500; font-family: var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--mute); }

/* Index rows: used for works and articles */
.index { border-top: 0; }
.index-row {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr minmax(90px, 160px) minmax(110px, 190px) 32px;
  align-items: baseline; gap: 16px;
  padding: clamp(20px, 3.2vw, 36px) 0;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.index-row::before {
  content: ""; position: absolute; inset: 0; background: var(--ink);
  transform: translateY(101%); transition: transform 0.55s var(--ease); z-index: 0;
}
.index-row > * { position: relative; z-index: 1; transition: color 0.4s, transform 0.55s var(--ease); }
.index-row__num { font-family: var(--mono); font-size: 12px; color: var(--mute); }
.index-row__title { font-size: clamp(24px, 4.2vw, 64px); font-weight: 500; letter-spacing: -0.035em; line-height: 1.1; }
.index-row__meta { font-size: 13px; color: var(--mute); }
.index-row__arrow { justify-self: end; font-size: 20px; }
@media (hover: hover) {
  .index-row:hover::before { transform: translateY(0); }
  .index-row:hover > * { color: var(--bg); }
  .index-row:hover .index-row__title { transform: translateX(14px); }
}
@media (max-width: 720px) {
  .index-row { grid-template-columns: 36px 1fr 24px; }
  .index-row__meta { display: none; }
}

.button {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--ink); border-radius: 999px; padding: 12px 22px; font-size: 14px;
  transition: background 0.35s, color 0.35s;
}
.button:hover { background: var(--ink); color: var(--bg); }

.tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 18px 0 28px; }
.tags span { border: 1px solid var(--line); border-radius: 999px; padding: 3px 12px; font-size: 12px; color: var(--mute); }

.site-footer { padding: 28px var(--pad) 32px; border-top: 1px solid var(--line); margin-top: clamp(40px, 8vh, 100px); }
.site-footer__row {
  display: flex; justify-content: space-between; align-items: baseline; gap: 16px; flex-wrap: wrap;
  font-family: var(--mono); font-size: 12px; color: var(--mute);
}
.site-footer__mark { font-family: var(--font); font-weight: 600; font-size: 18px; letter-spacing: -0.03em; color: var(--ink); }
.site-footer__mark i { font-style: normal; }
.site-footer a:not(.site-footer__mark) { transition: color 0.3s; }
.site-footer a:not(.site-footer__mark):hover { color: var(--ink); }

/* Floating preview card for the works index */
.preview {
  position: fixed; left: 0; top: 0; z-index: 40; width: 260px; pointer-events: none;
  background: var(--ink); color: var(--bg); padding: 16px 18px; border-radius: 4px;
  opacity: 0; transform: translate3d(0, 0, 0) scale(0.9);
  transition: opacity 0.25s, scale 0.25s var(--ease);
}
.preview.is-on { opacity: 1; }
.preview strong { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.preview span { font-size: 13px; opacity: 0.75; line-height: 1.5; }
@media (hover: none) { .preview { display: none; } }

.index-row__title small { display: block; margin-top: 10px; max-width: 46ch; font-size: 14px; font-weight: 400; letter-spacing: 0; line-height: 1.6; color: var(--mute); }
@media (hover: hover) { .index-row:hover .index-row__title small { color: var(--bg); opacity: 0.7; } }
@media (max-width: 720px) { .index-row__title small { display: none; } }

/* Reveal on scroll */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* Masked line rise (hero + split headings) */
.line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.line__inner { display: block; }
.js .line__inner { transform: translateY(112%); }
.js.is-ready .line__inner {
  transform: none;
  transition: transform 1.2s var(--ease);
  transition-delay: calc(0.15s + var(--i, 0) * 0.12s);
}

/* Per-word scroll-linked reveal */
.word { opacity: var(--o, 1); transition: opacity 0.2s linear; }
.js [data-words] .word { --o: 0.16; }

/* Page transition curtain */
.curtain {
  position: fixed; inset: 0; z-index: 90; background: var(--ink); pointer-events: none;
  transform: translateY(-101%);
}
.js .curtain { transform: translateY(0); }
.js.is-ready .curtain { transform: translateY(-101%); transition: transform 0.9s var(--ease-in); }
.js.is-leaving .curtain { transform: translateY(0); transition: transform 0.6s var(--ease-in); }
.js.is-leaving .curtain { pointer-events: all; }

/* Custom cursor */
.cursor { display: none; }
@media (hover: hover) and (pointer: fine) {
  .js .cursor {
    display: grid; place-items: center;
    position: fixed; left: 0; top: 0; z-index: 95; pointer-events: none;
    width: 14px; height: 14px; margin: -7px 0 0 -7px; border-radius: 50%;
    background: #fff; mix-blend-mode: difference;
    transition: width 0.35s var(--ease), height 0.35s var(--ease), margin 0.35s var(--ease), opacity 0.3s;
    opacity: 0;
  }
  .js .cursor.is-on { opacity: 1; }
  .js .cursor[data-state="link"] { width: 56px; height: 56px; margin: -28px 0 0 -28px; }
  .js .cursor[data-state="view"],
  .js .cursor[data-state="read"] { width: 84px; height: 84px; margin: -42px 0 0 -42px; }
  .cursor__label { font-size: 11px; font-family: var(--mono); color: #000; opacity: 0; transition: opacity 0.2s; }
  .cursor[data-state="view"] .cursor__label::before { content: "VIEW"; }
  .cursor[data-state="read"] .cursor__label::before { content: "READ"; }
  .cursor[data-state="view"] .cursor__label,
  .cursor[data-state="read"] .cursor__label { opacity: 1; }
  .js, .js a, .js button { cursor: none; }
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal, .js .line__inner { opacity: 1; transform: none; transition: none; }
  .js .curtain { display: none; }
  .js [data-words] .word { --o: 1; }
  .marquee__track { animation: none !important; }
}

/* Reading areas keep the normal cursor */
@media (hover: hover) and (pointer: fine) {
  .js .prose, .js .prose *, .js .source, .js .source * { cursor: auto; }
  .js .prose a { cursor: pointer; }
  .js .cursor.is-hidden { opacity: 0; }
}

.hero {
  min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end;
  padding: 120px var(--pad) clamp(28px, 5vh, 56px);
}
.hero__eyebrow { margin-bottom: clamp(20px, 4vh, 40px); }
.hero__title { margin-bottom: clamp(32px, 7vh, 80px); }
.hero__foot {
  display: flex; justify-content: space-between; align-items: flex-end; gap: 24px;
  padding-top: 20px; border-top: 1px solid var(--line);
}
.hero__lead { max-width: 34ch; color: var(--mute); font-size: 15px; }
.hero__scroll { font-size: 14px; display: inline-block; padding: 8px 4px; white-space: nowrap; }

/* Marquee: speed is boosted by scroll velocity from JS via --skew */
.marquee {
  overflow: hidden; border-block: 1px solid var(--line); padding: clamp(16px, 3vw, 30px) 0;
  transform: skewX(calc(var(--skew, 0) * 1deg)); transition: transform 0.2s linear;
}
.marquee__track {
  display: flex; width: max-content; gap: clamp(32px, 5vw, 72px);
  animation: marquee 28s linear infinite;
  font-size: clamp(28px, 6vw, 88px); font-weight: 600; letter-spacing: -0.04em; text-transform: uppercase;
}
.marquee__track span::after { content: "✳"; margin-left: clamp(32px, 5vw, 72px); font-weight: 400; color: var(--mute); }
@keyframes marquee { to { transform: translateX(-25%); } }

.about__statement {
  font-size: clamp(30px, 5.6vw, 84px); line-height: 1.12; letter-spacing: -0.035em; font-weight: 600; max-width: 18ch;
}
.about__body { margin-top: clamp(28px, 5vw, 56px); max-width: 44ch; color: var(--mute); }

/* Latest article lead block */
.lead { display: grid; gap: 14px; padding: clamp(28px, 5vw, 56px) 0 clamp(32px, 5vw, 64px); border-bottom: 1px solid var(--line); }
.lead__meta { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--mute); }
.lead__title { font-size: clamp(34px, 7vw, 108px); font-weight: 600; letter-spacing: -0.045em; line-height: 1.02; max-width: 16ch; transition: transform 0.7s var(--ease); }
.lead__summary { max-width: 46ch; font-size: clamp(16px, 1.6vw, 20px); color: var(--mute); }
.lead__cta { font-size: 14px; margin-top: 8px; position: relative; width: max-content; }
.lead__cta::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px; background: currentColor; transform: scaleX(0.35); transform-origin: left; transition: transform 0.6s var(--ease); }
@media (hover: hover) {
  .lead:hover .lead__title { transform: translateX(14px); }
  .lead:hover .lead__cta::after { transform: scaleX(1); }
}

.detail {
  display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px;
  padding: clamp(32px, 6vw, 72px) 0; border-top: 1px solid var(--line);
}
.detail__num { font-family: var(--mono); font-size: 12px; color: var(--mute); padding-top: 12px; }
.detail__main h2 { font-size: clamp(32px, 6vw, 88px); font-weight: 600; letter-spacing: -0.04em; line-height: 1.05; }
.detail__main > p { margin-top: 20px; max-width: 40ch; color: var(--mute); font-size: 18px; }
.detail__list { margin: 0 0 32px; max-width: 520px; }
.detail__list li { border-bottom: 1px solid var(--line); }
.detail__list a { display: flex; justify-content: space-between; padding: 14px 0; transition: padding 0.4s var(--ease); }
.detail__list a:hover { padding-left: 14px; }

.progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 60; }
.progress i { display: block; height: 100%; background: var(--ink); transform: scaleX(var(--progress, 0)); transform-origin: left; }

.reader { padding: 110px var(--pad) 40px; }
.reader__bar { display: flex; justify-content: space-between; align-items: center; margin-bottom: clamp(40px, 9vh, 100px); }
.segmented { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; font-size: 13px; }
.segmented button { padding: 5px 16px; border-radius: 999px; color: var(--mute); transition: background 0.3s, color 0.3s; }
.segmented button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }

.reader__head .eyebrow { margin-bottom: 24px; }
.reader__summary { margin-top: 28px; max-width: 42ch; font-size: 19px; color: var(--mute); }

.reader__layout {
  display: grid; grid-template-columns: minmax(0, 680px) 220px; gap: clamp(32px, 8vw, 140px);
  margin-top: clamp(48px, 10vh, 110px); padding-top: 32px; border-top: 1px solid var(--line);
}
.prose { font-size: 18px; line-height: 1.9; }
.prose p { margin: 0 0 1.4em; }
.prose h2 { font-size: 28px; letter-spacing: -0.02em; line-height: 1.3; margin: 2.2em 0 0.8em; }
.prose h3 { font-size: 21px; margin: 1.8em 0 0.6em; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.4em; }
.prose ul { list-style: disc; }
.prose li { margin: 0.3em 0; }
.prose blockquote { margin: 2em 0; padding-left: 20px; border-left: 2px solid var(--ink); font-size: 22px; letter-spacing: -0.01em; }
.prose a { text-decoration: underline; text-underline-offset: 4px; }
.prose code { font-family: var(--mono); font-size: 0.9em; background: var(--line); padding: 2px 6px; border-radius: 3px; }

.toc { position: sticky; top: 100px; align-self: start; display: grid; gap: 10px; font-size: 14px; }
.toc p { font-family: var(--mono); font-size: 12px; letter-spacing: 0.08em; color: var(--mute); margin-bottom: 4px; }
.toc a { color: var(--mute); transition: color 0.3s; }
.toc a:hover { color: var(--ink); }
.toc .toc-level-3 { padding-left: 14px; }

.source { margin-top: 48px; border: 1px solid var(--line); }
.source__head { display: flex; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 12px; color: var(--mute); }
.source pre { margin: 0; padding: 20px 16px; overflow-x: auto; font-family: var(--mono); font-size: 13px; line-height: 1.7; }

@media (max-width: 900px) {
  .reader__layout { grid-template-columns: minmax(0, 1fr); }
  .toc { display: none; }
}

.prose img { display: block; max-width: 100%; height: auto; margin: 2em 0; }
.prose pre { overflow-x: auto; padding: 16px; border: 1px solid var(--line); font-family: var(--mono); font-size: 14px; line-height: 1.7; }
.prose pre code { background: none; padding: 0; }
.prose .table-wrap { margin: 1.8em 0 2.2em; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.prose .table-wrap:focus-visible { outline: 1px solid var(--ink); outline-offset: 4px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; line-height: 1.65; font-variant-numeric: tabular-nums; }
.prose th, .prose td { padding: 10px 16px 10px 0; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); min-width: 5.5em; }
.prose th:last-child, .prose td:last-child { padding-right: 0; }
.prose thead th { font-weight: 600; font-size: 13px; letter-spacing: 0.02em; color: var(--mute); border-bottom: 1px solid var(--ink); white-space: nowrap; }
.prose tbody tr:last-child td { border-bottom-color: var(--ink); }
.prose td code { font-size: 0.85em; white-space: nowrap; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.4em 0; }
.prose--page { max-width: 680px; }

/* Table of contents: current section is highlighted by reader.js */
.toc a[aria-current="true"] { color: var(--ink); }
.toc a { position: relative; }
.toc a::before { content: ""; position: absolute; left: -14px; top: 50%; width: 6px; height: 1px; background: var(--ink); opacity: 0; transition: opacity 0.3s; }
.toc a[aria-current="true"]::before { opacity: 1; }

/* Previous / next */
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: clamp(48px, 10vh, 110px); padding-top: 28px; border-top: 1px solid var(--line); }
.pager a { display: grid; gap: 6px; }
.pager small { font-family: var(--mono); font-size: 12px; color: var(--mute); }
.pager span { font-size: clamp(18px, 2.4vw, 28px); font-weight: 500; letter-spacing: -0.02em; line-height: 1.25; transition: transform 0.5s var(--ease); }
.pager__next { text-align: right; }
@media (hover: hover) {
  .pager a:hover span { transform: translateX(8px); }
  .pager__next:hover span { transform: translateX(-8px); }
}
@media (max-width: 600px) { .pager { grid-template-columns: 1fr; } .pager__next { text-align: left; } }