@font-face {
  font-family: "Local Serif";
  src: local("Songti SC"), local("STSong"), local("Noto Serif CJK SC");
}

:root {
  color-scheme: light;
  --paper: #f2dfb5;
  --paper-deep: #e6cb94;
  --ink: #3a2d22;
  --muted: #6e5943;
  --faint: #927754;
  --line: #cdb488;
  --line-strong: #9f7d52;
  --accent: #913126;
  --accent-soft: #f3e6e0;
  --personal: #315b52;
  --personal-soft: #e5eee9;
  --panel: rgba(255, 255, 255, 0.28);
  --parchment-outer: #594231;
  --parchment-sheet: #e6d3ae;
  --parchment-card: #f7e4b8;
  --parchment-card-edge: #765229;
  --parchment-card-layer: #dbb471;
  --parchment-card-layer-deep: #7c552d;
  --parchment-card-shadow: rgba(48, 28, 10, 0.54);
  --parchment-crumple-opacity: 0.48;
  --parchment-ink: #3c3025;
  --parchment-muted: #6e5943;
  --parchment-faint: #927754;
  --parchment-line: #c8ab7d;
  --parchment-line-strong: #9f7d52;
  --parchment-title: #743328;
  --parchment-panel: rgba(121, 82, 35, 0.055);
  --parchment-shadow: rgba(33, 17, 7, 0.25);
  --max-width: 1180px;
  --serif: "Local Serif", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #1d1d1a;
  --paper-deep: #282721;
  --ink: #e7e2d7;
  --muted: #aaa69c;
  --faint: #797971;
  --line: #383934;
  --line-strong: #595a53;
  --accent: #d27a6e;
  --accent-soft: #3b2926;
  --personal: #78a89b;
  --personal-soft: #243531;
  --panel: rgba(255, 255, 255, 0.03);
  --parchment-outer: #100d0b;
  --parchment-sheet: #181511;
  --parchment-card: #292219;
  --parchment-card-edge: #756044;
  --parchment-card-layer: #5a4328;
  --parchment-card-layer-deep: #0e0906;
  --parchment-card-shadow: rgba(0, 0, 0, 0.92);
  --parchment-crumple-opacity: 0.34;
  --parchment-ink: #e3d7bd;
  --parchment-muted: #b4a78f;
  --parchment-faint: #7e735f;
  --parchment-line: #4f4536;
  --parchment-line-strong: #6b5c47;
  --parchment-title: #d68a75;
  --parchment-panel: rgba(232, 210, 164, 0.055);
  --parchment-shadow: rgba(0, 0, 0, 0.58);
}

* {
  box-sizing: border-box;
}

html {
  width: 100%;
  max-width: 100%;
  overflow-x: clip;
  overscroll-behavior-x: none;
  scroll-behavior: smooth;
}

body {
  position: relative;
  isolation: isolate;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  overscroll-behavior-x: none;
  touch-action: pan-y;
  background: var(--parchment-outer);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.65;
  transition: background-color 160ms ease, color 160ms ease;
}

body::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 0;
  width: min(calc(100% - 44px), 1260px);
  pointer-events: none;
  content: "";
  background-color: var(--paper);
  background-image: url("/assets/parchment-surface.webp");
  background-repeat: repeat;
  background-size: 640px 640px;
  background-blend-mode: soft-light;
  box-shadow:
    0 0 0 1px rgba(66, 42, 21, 0.28),
    0 0 62px var(--parchment-shadow),
    inset 0 0 70px rgba(91, 58, 23, 0.1);
  transform: translateX(-50%);
}

html[data-theme="dark"] body::before {
  background-color: var(--paper);
  background-blend-mode: multiply;
  box-shadow:
    0 0 0 1px rgba(219, 188, 132, 0.06),
    0 0 68px var(--parchment-shadow),
    inset 0 0 76px rgba(0, 0, 0, 0.28);
}

body[data-page="home"] {
  --paper: #f4ecd9;
  --paper-deep: #e8deca;
  --ink: #2d2b26;
  --muted: #6f6b61;
  --faint: #999183;
  --line: #d8cdb8;
  --line-strong: #afa38f;
  --accent: #8f2d24;
  --accent-soft: #eee0dc;
  --personal-soft: #dee8e3;
  background-color: var(--paper);
  background-image: url("/assets/parchment-surface.webp");
  background-repeat: repeat;
  background-size: 640px 640px;
  background-blend-mode: soft-light;
}

html[data-theme="dark"] body[data-page="home"] {
  --paper: #1d1d1a;
  --paper-deep: #282721;
  --ink: #e7e2d7;
  --muted: #aaa69c;
  --faint: #797971;
  --line: #383934;
  --line-strong: #595a53;
  --accent: #d27a6e;
  --accent-soft: #3b2926;
  --personal-soft: #243531;
  background-blend-mode: multiply;
}

body[data-page="home"]::before {
  content: none;
}

body > header,
body > main,
body > footer {
  position: relative;
  z-index: 2;
}

body[data-page="article"] {
  --paper: var(--parchment-sheet);
  --paper-deep: var(--parchment-panel);
  --ink: var(--parchment-ink);
  --muted: var(--parchment-muted);
  --faint: var(--parchment-faint);
  --line: var(--parchment-line);
  --line-strong: var(--parchment-line-strong);
  --accent: var(--parchment-title);
  background-color: var(--parchment-sheet);
  background-image: url("/assets/parchment-surface.webp");
  background-repeat: repeat;
  background-size: 640px 640px;
  background-blend-mode: soft-light;
}

html[data-theme="dark"] body[data-page="article"] {
  background-blend-mode: multiply;
}

body[data-page="article"]::before {
  content: none;
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 3px;
  overflow: hidden;
  pointer-events: none;
  background: rgba(143, 45, 36, 0.12);
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--accent);
  opacity: 1;
  will-change: width;
}

html[data-theme="dark"] .reading-progress {
  background: rgba(210, 122, 110, 0.12);
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 30;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.page-shell,
.site-footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 84px;
  border-bottom: 1px solid var(--line-strong);
}

.site-name {
  display: inline-flex;
  width: fit-content;
  align-items: baseline;
  gap: 8px;
}

.site-name-main {
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.site-name-sub {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: 0.84rem;
}

.site-nav a {
  position: relative;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav .is-current {
  color: var(--ink);
}

.site-nav .is-current::after {
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 1px;
  background: var(--accent);
  content: "";
}

.header-controls {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 16px;
}

.language-toggle,
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.76rem;
}

.language-toggle:hover,
.language-toggle:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--ink);
  outline: none;
}

.intro {
  max-width: 780px;
  padding: 94px 0 86px;
}

.intro-kicker,
.featured-label,
.post-meta,
.category,
.side-note {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.intro-kicker {
  margin: 0 0 17px;
  color: var(--accent);
}

.intro h1 {
  max-width: 820px;
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(2.3rem, 4.8vw, 4.1rem);
  font-weight: 600;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.intro-copy {
  max-width: 650px;
  margin: 26px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.featured {
  display: grid;
  grid-template-columns: 180px 1fr;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.featured-label {
  padding: 28px 24px 28px 0;
  color: var(--muted);
}

.featured-card {
  padding: 28px 0 34px 34px;
  border-left: 1px solid var(--line);
}

.featured-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 18px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.featured-card h2 {
  max-width: 830px;
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(1.9rem, 3.5vw, 3.2rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.22;
}

.featured-card h2 a:hover,
.featured-card h2 a:focus-visible,
.post-main h3 a:hover,
.post-main h3 a:focus-visible {
  color: var(--accent);
  outline: none;
}

.featured-card > p {
  max-width: 780px;
  margin: 18px 0 20px;
  color: var(--muted);
}

.text-link {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  font-size: 0.82rem;
  font-weight: 600;
}

.text-link:hover,
.text-link:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.category {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 7px;
  border: 1px solid currentColor;
  letter-spacing: 0.025em;
}

.category-tech {
  color: var(--accent);
  background: var(--accent-soft);
}

.category-personal {
  color: var(--personal);
  background: var(--personal-soft);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 72px;
  padding: 92px 0 110px;
}

.section-bar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 16px;
}

.section-bar h2,
.side-block h2 {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.filters {
  display: flex;
  gap: 4px;
}

.filter {
  padding: 5px 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.74rem;
}

.filter:hover,
.filter:focus-visible,
.filter.is-active {
  border-color: var(--line-strong);
  color: var(--ink);
  outline: none;
}

.post-list {
  border-top: 1px solid var(--line-strong);
}

.post-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) 24px;
  gap: 22px;
  align-items: start;
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--line);
  transition: opacity 120ms ease;
}

.post-row[hidden] {
  display: none;
}

.post-date {
  padding-top: 3px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.69rem;
  line-height: 1.45;
}

.post-date span {
  display: block;
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  color: var(--faint);
  letter-spacing: 0.015em;
}

.post-main h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.28;
}

.post-main p {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.post-arrow {
  padding-top: 5px;
  color: var(--faint);
  font-size: 0.84rem;
}

.post-row:hover .post-arrow {
  color: var(--accent);
}

.empty-state {
  margin: 0;
  padding: 40px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.sidebar {
  padding-top: 35px;
}

.side-block {
  padding: 0 0 32px;
  border-bottom: 1px solid var(--line);
}

.side-block + .side-block {
  padding-top: 30px;
}

.side-block p {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.now-block dl {
  margin: 18px 0 0;
}

.now-block dl div {
  padding: 13px 0;
  border-top: 1px solid var(--line);
}

.now-block dt {
  margin-bottom: 4px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.65rem;
  text-transform: uppercase;
}

.now-block dd {
  margin: 0;
  font-family: var(--serif);
  font-size: 0.95rem;
  line-height: 1.5;
}

.side-note {
  color: var(--faint) !important;
  font-size: 0.64rem !important;
}

.archive-list {
  margin-top: 12px;
  border-top: 1px solid var(--line);
}

.archive-list button,
.archive-reset {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-align: left;
}

.archive-list button {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.archive-list button:hover,
.archive-list button:focus-visible,
.archive-list button.is-active,
.archive-reset:hover,
.archive-reset:focus-visible {
  color: var(--accent);
  outline: none;
}

.archive-reset {
  margin-top: 10px;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  min-height: 118px;
  border-top: 1px solid var(--line-strong);
  color: var(--faint);
  font-size: 0.72rem;
}

.site-footer > div:first-child {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.site-footer strong {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  justify-self: end;
  display: flex;
  gap: 18px;
}

.site-footer a:hover,
.site-footer a:focus-visible {
  color: var(--ink);
  outline: none;
}

.article-shell {
  position: relative;
  width: min(calc(100% - 40px), 1120px);
  margin: 0 auto;
}

.article-return {
  display: flex;
}

.article-return-top {
  padding-top: 28px;
}

.article-return-bottom {
  justify-content: flex-end;
  padding-bottom: 72px;
}

.article-return a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  padding: 0 2px 2px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--muted);
  font-size: 0.74rem;
}

.article-return a:hover,
.article-return a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.article-header {
  padding: 46px 0 54px;
  border-bottom: 1px solid var(--line-strong);
}

.article-breadcrumb {
  margin: 0 0 28px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.article-breadcrumb a:hover {
  color: var(--accent);
}

.article-header h1 {
  max-width: 820px;
  margin: 18px 0 22px;
  color: var(--parchment-title);
  font-family: var(--serif);
  font-size: clamp(2.3rem, 4.8vw, 4.1rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.article-deck {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.6;
}

.article-info {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
  align-items: center;
  margin-top: 26px;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 860px) minmax(150px, 180px);
  gap: 50px;
  align-items: start;
  padding: 62px 0 72px;
}

.article-toc {
  grid-column: 2;
  grid-row: 1;
  position: sticky;
  top: 24px;
  z-index: 2;
  align-self: start;
  padding: 0 0 0 22px;
  border-left: 1px solid var(--parchment-line);
  background: transparent;
}

.article-toc strong {
  display: block;
  margin-bottom: 12px;
  color: var(--parchment-title);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.article-toc a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.4;
}

.article-toc a:hover,
.article-toc a:focus-visible {
  color: var(--accent);
  outline: none;
}

.prose {
  grid-column: 1;
  grid-row: 1;
  min-width: 0;
  font-family: var(--serif);
  color: var(--parchment-ink);
  font-size: 1.065rem;
  line-height: 1.86;
}

.article-paper {
  position: relative;
  isolation: isolate;
  --article-paper-shape: polygon(
    0.72% 0%, 99.28% 0%,
    99.28% 7.97%, 99.17% 8.01%, 98.93% 8.06%, 99.16% 8.11%, 99.28% 8.15%,
    99.28% 17.43%, 99.16% 17.51%, 98.8% 17.62%, 99.17% 17.72%, 99.28% 17.81%,
    99.28% 29.74%, 99.18% 29.78%, 98.9% 29.82%, 99.18% 29.86%, 99.28% 29.9%,
    99.28% 43.26%, 99.13% 43.42%, 98.76% 43.62%, 99.14% 43.8%, 99.28% 43.98%,
    99.28% 57.62%, 99.17% 57.69%, 98.84% 57.77%, 99.16% 57.85%, 99.28% 57.92%,
    99.28% 71.48%, 99.19% 71.53%, 99% 71.58%, 99.18% 71.63%, 99.28% 71.68%,
    99.28% 84.57%, 99.14% 84.69%, 98.73% 84.84%, 99.15% 84.99%, 99.28% 85.11%,
    99.28% 93.49%, 99.17% 93.55%, 98.94% 93.62%, 99.18% 93.69%, 99.28% 93.75%,
    99.28% 100%, 0.72% 100%,
    0.72% 93.75%, 0.82% 93.69%, 1.06% 93.62%, 0.84% 93.56%, 0.72% 93.49%,
    0.72% 85.15%, 0.86% 85.02%, 1.28% 84.84%, 0.85% 84.65%, 0.72% 84.53%,
    0.72% 71.71%, 0.84% 71.64%, 1% 71.58%, 0.83% 71.52%, 0.72% 71.45%,
    0.72% 57.99%, 0.85% 57.87%, 1.22% 57.77%, 0.84% 57.67%, 0.72% 57.55%,
    0.72% 43.69%, 0.82% 43.65%, 1.04% 43.62%, 0.83% 43.59%, 0.72% 43.55%,
    0.72% 30.16%, 0.86% 30.01%, 1.34% 29.82%, 0.87% 29.63%, 0.72% 29.48%,
    0.72% 17.78%, 0.83% 17.7%, 1.17% 17.62%, 0.84% 17.54%, 0.72% 17.46%,
    0.72% 8.31%, 0.84% 8.19%, 1.27% 8.06%, 0.83% 7.94%, 0.72% 7.81%
  );
  padding: clamp(44px, 5vw, 64px) clamp(40px, 5.5vw, 70px) clamp(50px, 6vw, 76px);
  border: 2px solid var(--parchment-card-edge);
  border-top-width: 0;
  border-bottom-width: 13px;
  background-color: var(--parchment-card);
  background-image: url("/assets/parchment-surface.webp");
  background-repeat: repeat;
  background-size: 640px 640px;
  background-blend-mode: soft-light;
  clip-path: var(--article-paper-shape);
  box-shadow:
    0 13px 0 var(--parchment-card-layer),
    0 28px 0 var(--parchment-card-layer-deep),
    0 38px 48px rgba(47, 27, 10, 0.58),
    -16px 44px 46px rgba(55, 33, 13, 0.3),
    18px 48px 54px rgba(55, 33, 13, 0.34),
    0 78px 126px var(--parchment-card-shadow),
    inset 0 0 0 2px rgba(255, 248, 224, 0.42),
    inset 0 0 64px rgba(87, 53, 20, 0.14);
}

.article-paper::before,
.article-paper::after {
  position: absolute;
  inset: 0;
  pointer-events: none;
  content: "";
}

.article-paper::before {
  z-index: 0;
  background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='920'%20height='920'%20viewBox='0%200%20920%20920'%3E%3Cfilter%20id='c'%20x='-22%25'%20y='-22%25'%20width='144%25'%20height='144%25'%3E%3CfeTurbulence%20type='fractalNoise'%20baseFrequency='.008%20.014'%20numOctaves='5'%20seed='19'%20result='b'/%3E%3CfeTurbulence%20type='turbulence'%20baseFrequency='.021%20.033'%20numOctaves='3'%20seed='43'%20result='f'/%3E%3CfeComposite%20in='b'%20in2='f'%20operator='arithmetic'%20k2='.76'%20k3='.24'%20result='n'/%3E%3CfeDiffuseLighting%20in='n'%20surfaceScale='31'%20diffuseConstant='.9'%20lighting-color='%23f6dfaa'%20result='d'%3E%3CfeDistantLight%20azimuth='218'%20elevation='27'/%3E%3C/feDiffuseLighting%3E%3CfeSpecularLighting%20in='n'%20surfaceScale='14'%20specularConstant='.42'%20specularExponent='18'%20lighting-color='%23fff4d2'%20result='s'%3E%3CfeDistantLight%20azimuth='38'%20elevation='52'/%3E%3C/feSpecularLighting%3E%3CfeBlend%20in='d'%20in2='s'%20mode='screen'%20result='m'/%3E%3CfeColorMatrix%20in='m'%20type='matrix'%20values='.72%200%200%200%20.035%200%20.55%200%200%20.02%200%200%20.32%200%20.012%200%200%200%20.82%200'/%3E%3C/filter%3E%3Crect%20width='100%25'%20height='100%25'%20filter='url(%23c)'%20opacity='.9'/%3E%3C/svg%3E");
  background-size: 560px 560px;
  opacity: var(--parchment-crumple-opacity);
  mix-blend-mode: multiply;
}

.article-paper::after {
  z-index: 1;
  border-top: 2px solid rgba(255, 249, 226, 0.52);
  box-shadow:
    inset 0 8px 0 rgba(255, 246, 215, 0.42),
    inset 0 20px 18px rgba(99, 61, 24, 0.19),
    inset 6px 0 12px rgba(255, 244, 207, 0.16),
    inset -8px 0 15px rgba(78, 45, 16, 0.14),
    inset 0 -16px 26px rgba(69, 39, 14, 0.27),
    inset 0 0 58px rgba(83, 49, 18, 0.14);
}

html[data-theme="dark"] .article-paper {
  background-blend-mode: multiply;
}

html[data-theme="dark"] .article-paper::before {
  filter: invert(1) contrast(0.84);
  mix-blend-mode: soft-light;
}

html[data-theme="dark"] .article-paper::after {
  border-top-color: rgba(231, 207, 162, 0.1);
  box-shadow:
    inset 0 5px 0 rgba(231, 207, 162, 0.06),
    inset 0 12px 14px rgba(0, 0, 0, 0.42),
    inset 6px 0 12px rgba(231, 207, 162, 0.035),
    inset -8px 0 16px rgba(0, 0, 0, 0.44),
    inset 0 -10px 20px rgba(0, 0, 0, 0.5),
    inset 0 0 46px rgba(0, 0, 0, 0.34);
}

.article-paper > * {
  position: relative;
  z-index: 2;
}

.article-paper > p:first-child::first-letter {
  float: left;
  margin: 0.08em 0.13em 0 0;
  color: var(--parchment-title);
  font-family: var(--serif);
  font-size: 3.75rem;
  font-weight: 700;
  line-height: 0.78;
}

.article-paper > *:first-child {
  margin-top: 0;
}

.article-paper > *:last-child {
  margin-bottom: 0;
}

.prose h2 {
  margin: 2.85em 0 0.82em;
  color: var(--parchment-title);
  font-family: var(--serif);
  font-size: 1.52rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
}

.prose p {
  margin: 1.2em 0;
}

.prose a {
  border-bottom: 1px solid var(--line-strong);
}

.prose a:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.prose blockquote {
  margin: 2em 0;
  padding: 6px 0 6px 24px;
  border-left: 2px solid var(--parchment-title);
  color: var(--muted);
  font-size: 1.04em;
  font-style: italic;
}

.prose ul {
  padding-left: 1.25em;
}

.prose code {
  padding: 0.12em 0.35em;
  background: var(--parchment-panel);
  font-family: var(--mono);
  font-size: 0.86em;
}

.prose pre {
  overflow-x: auto;
  margin: 1.8em 0;
  padding: 20px;
  border: 1px solid var(--parchment-line);
  background: var(--parchment-panel);
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.7;
}

.prose pre code {
  padding: 0;
  background: transparent;
}

.article-end {
  margin-top: 70px;
  padding-top: 22px;
  border-top: 1px solid var(--parchment-line-strong);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 0.8rem;
}

@media (max-width: 880px) {
  .content-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }

  .sidebar {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    padding-top: 0;
  }

  .side-block + .side-block {
    padding-top: 0;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .article-toc {
    grid-column: 1;
    grid-row: 1;
    position: static;
    z-index: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 16px;
    padding: 0 0 22px;
    border-left: 0;
    border-bottom: 1px solid var(--line);
    background-color: transparent;
  }

  .article-toc strong {
    width: 100%;
  }

  .prose {
    grid-column: 1;
    grid-row: 2;
  }
}

@media (max-width: 680px) {
  body {
    background: var(--paper);
  }

  body::before,
  body::after {
    width: 100%;
  }

  body::before {
    box-shadow: none;
  }

  .site-header,
  .page-shell,
  .site-footer,
  .article-shell {
    width: min(calc(100% - 24px), var(--max-width));
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .theme-toggle-label,
  .site-name-sub {
    display: none;
  }

  .intro {
    padding: 68px 0 58px;
  }

  .intro h1 {
    font-size: clamp(2.15rem, 11vw, 3.3rem);
  }

  .featured {
    grid-template-columns: 1fr;
  }

  .featured-label {
    padding: 18px 0 12px;
  }

  .featured-card {
    padding: 24px 0 30px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .content-grid {
    padding: 70px 0 84px;
  }

  .section-bar {
    align-items: start;
    flex-direction: column;
  }

  .post-row {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
  }

  .post-arrow {
    display: none;
  }

  .sidebar {
    grid-template-columns: 1fr;
  }

  .side-block,
  .side-block + .side-block {
    padding: 26px 0;
    border-top: 1px solid var(--line);
    border-bottom: 0;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 26px 0;
  }

  .footer-links {
    justify-self: start;
  }

  .article-header {
    padding-top: 34px;
  }

  .article-return-top {
    padding-top: 18px;
  }

  .article-return-bottom {
    justify-content: flex-start;
    padding-bottom: 48px;
  }

  .article-header h1 {
    font-size: clamp(2.25rem, 12vw, 3.4rem);
  }

  .article-layout {
    padding: 40px 0 56px;
  }

  .prose {
    font-size: 1rem;
  }

  .article-paper > p:first-child::first-letter {
    margin-top: 0.11em;
    font-size: 3.15rem;
  }

  .article-paper {
    margin-inline: -2px;
    padding: 30px 22px 38px;
    border-top-width: 0;
    border-bottom-width: 10px;
    box-shadow:
      0 10px 0 var(--parchment-card-layer),
      0 20px 0 var(--parchment-card-layer-deep),
      0 28px 36px rgba(47, 27, 10, 0.5),
      0 48px 74px var(--parchment-card-shadow),
      inset 0 0 0 1px rgba(255, 244, 211, 0.28),
      inset 0 0 38px rgba(87, 53, 20, 0.18);
  }

  .article-paper::before {
    background-size: 460px 460px;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}


.engagement {
  margin-top: 76px;
  padding-top: 34px;
  border-top: 1px solid var(--line-strong);
  font-family: var(--sans);
}

.engagement-heading {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 30px;
}

.engagement-kicker {
  margin: 0 0 7px !important;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.engagement-heading h2,
.comment-form h3,
.comments-heading h3 {
  margin: 0;
  font-family: var(--sans);
  letter-spacing: -0.02em;
}

.engagement-heading h2 {
  font-size: 1.35rem;
}

.giscus-note {
  margin: -12px 0 28px !important;
  color: var(--muted);
  font-size: 0.82rem;
}

.giscus,
.giscus-frame {
  width: 100%;
}

.like-button {
  display: inline-flex;
  min-width: 112px;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.like-button:hover,
.like-button:focus-visible,
.like-button.is-liked {
  border-color: var(--accent);
  color: var(--accent);
  outline: none;
}

.like-icon {
  font-size: 1.08rem;
  line-height: 1;
}

.like-count {
  min-width: 1.3em;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.comment-area {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 38px;
}

.comment-form,
.comments-panel {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.comment-form-header {
  margin-bottom: 20px;
}

.comment-form h3,
.comments-heading h3 {
  font-size: 0.9rem;
}

.comment-form-header p {
  margin: 7px 0 0;
  color: var(--faint);
  font-size: 0.72rem;
}

.comment-form label {
  display: block;
  margin-top: 15px;
  color: var(--muted);
  font-size: 0.74rem;
}

.comment-form input,
.comment-form textarea {
  width: 100%;
  margin-top: 7px;
  padding: 10px 11px;
  border: 1px solid var(--line);
  border-radius: 0;
  background: var(--panel);
  color: var(--ink);
  font: inherit;
  font-size: 0.84rem;
  resize: vertical;
}

.comment-form input:focus,
.comment-form textarea:focus {
  border-color: var(--accent);
  outline: none;
}

.comment-form-actions {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-top: 12px;
}

.comment-counter {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.65rem;
}

.comment-submit {
  min-height: 38px;
  padding: 0 15px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 600;
}

.comment-submit:hover,
.comment-submit:focus-visible {
  opacity: 0.82;
  outline: none;
}

.comments-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.comments-count {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.comment-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.comment-item {
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.comment-item-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: baseline;
}

.comment-item-header strong {
  font-size: 0.78rem;
}

.comment-item-header time {
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.62rem;
}

.comment-delete {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--faint);
  cursor: pointer;
  font-size: 0.66rem;
}

.comment-delete:hover,
.comment-delete:focus-visible {
  color: var(--accent);
  outline: none;
}

.comment-item p {
  margin: 8px 0 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 0.92rem;
  line-height: 1.65;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.comments-empty {
  margin: 0;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.78rem;
}

@media (max-width: 680px) {
  .engagement-heading {
    align-items: start;
  }

  .comment-area {
    grid-template-columns: 1fr;
  }
}

/* Editorial article theme: the earlier continuous-page layout without a paper card. */
html[data-article-style="editorial"] body[data-page="article"] {
  --paper: #f4ecd9;
  --paper-deep: #e8deca;
  --ink: #2d2b26;
  --muted: #6f6b61;
  --faint: #999183;
  --line: #d8cdb8;
  --line-strong: #afa38f;
  --accent: #8f2d24;
  background-color: var(--paper);
  background-blend-mode: soft-light;
}

html[data-theme="dark"][data-article-style="editorial"] body[data-page="article"] {
  --paper: #1d1d1a;
  --paper-deep: #282721;
  --ink: #e7e2d7;
  --muted: #aaa69c;
  --faint: #797971;
  --line: #383934;
  --line-strong: #595a53;
  --accent: #d27a6e;
  background-blend-mode: multiply;
}

html[data-article-style="editorial"] .article-header h1 {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.045em;
}

html[data-article-style="editorial"] .article-layout {
  grid-template-columns: minmax(0, 800px) minmax(150px, 180px);
  gap: 56px;
}

html[data-article-style="editorial"] .article-toc {
  padding: 6px 0 6px 22px;
  border-left-color: var(--line);
}

html[data-article-style="editorial"] .article-toc strong {
  color: var(--ink);
}

html[data-article-style="editorial"] .prose {
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.82;
}

html[data-article-style="editorial"] .article-paper {
  position: static;
  isolation: auto;
  margin-inline: 0;
  padding: 0 0 8px;
  border: 0;
  background: none;
  clip-path: none;
  box-shadow: none;
}

html[data-article-style="editorial"] .article-paper::before,
html[data-article-style="editorial"] .article-paper::after {
  display: none;
}

html[data-article-style="editorial"] .article-paper > * {
  position: static;
  z-index: auto;
}

html[data-article-style="editorial"] .article-paper > p:first-child::first-letter {
  float: none;
  margin: 0;
  color: inherit;
  font: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

html[data-article-style="editorial"] .prose h2 {
  margin: 2.9em 0 0.82em;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.025em;
}

html[data-article-style="editorial"] .prose blockquote {
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--accent);
}

html[data-article-style="editorial"] .prose code {
  background: var(--paper-deep);
}

html[data-article-style="editorial"] .prose pre {
  border-color: var(--line);
  background: var(--paper-deep);
}

html[data-article-style="editorial"] .article-end {
  border-top-color: var(--line-strong);
}

@media (max-width: 880px) {
  html[data-article-style="editorial"] .article-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  html[data-article-style="editorial"] .article-toc {
    padding: 0 0 22px;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 680px) {
  html[data-article-style="editorial"] .prose {
    font-size: 1rem;
  }
}