@font-face {
  font-family: "Instrument Serif";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/instrument-serif-regular.woff2") format("woff2");
}

@font-face {
  font-family: "Instrument Serif";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("/assets/fonts/instrument-serif-italic.woff2") format("woff2");
}

@font-face {
  font-family: "Instrument Sans";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("/assets/fonts/instrument-sans-variable.woff2") format("woff2-variations");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("/assets/fonts/jetbrains-mono-variable.woff2") format("woff2-variations");
}

:root {
  --serif: "Instrument Serif", Georgia, serif;
  --sans: "Instrument Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --bg: #080a10;
  --surface: #0d1017;
  --surface-2: #12161f;
  --ink: #eef1f8;
  --ink-2: #aab3c7;
  --ink-3: #6f7a92;
  --line: rgba(150, 170, 210, 0.11);
  --line-2: rgba(150, 170, 210, 0.22);
  --blog: #46e0b0;
  --notes: #5a97e0;
  --research: #d98a2b;
  --accent: var(--blog);
  --ring: rgba(70, 224, 176, 0.48);
  --max-width: 1180px;
  --wide-width: 1360px;
  --gutter: clamp(18px, 4vw, 56px);
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg: #efece3;
  --surface: #faf8f3;
  --surface-2: #ece7db;
  --ink: #15171d;
  --ink-2: #454b58;
  --ink-3: #757c8b;
  --line: rgba(40, 44, 54, 0.13);
  --line-2: rgba(40, 44, 54, 0.24);
  --blog: #0d976e;
  --notes: #2f6fd0;
  --research: #b06f00;
  --ring: rgba(13, 151, 110, 0.44);
  color-scheme: light;
}

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

* {
  margin: 0;
}

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

body {
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  pointer-events: none;
  background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 100% 34px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 34px 100%;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 0%, transparent 78%);
  opacity: 0.52;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.18'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
  opacity: 0.25;
}

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

button {
  color: inherit;
  background: none;
  border: 0;
  font: inherit;
  cursor: pointer;
}

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

.wrap {
  width: min(100%, var(--max-width));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--wide {
  width: min(100%, var(--wide-width));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px) saturate(1.15);
}

.header-inner {
  display: flex;
  min-height: 64px;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--serif);
  font-size: 1.4rem;
  line-height: 1;
}

.brand-mark {
  width: 10px;
  height: 10px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--blog);
  box-shadow: 0 0 12px color-mix(in srgb, var(--blog) 70%, transparent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-left: auto;
}

.site-nav a {
  min-height: 40px;
  padding: 8px 10px;
  border-radius: 2px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.76rem;
  line-height: 24px;
  white-space: nowrap;
  transition: color 160ms ease, background-color 160ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: var(--surface-2);
}

.nav-index {
  margin-right: 6px;
  opacity: 0.56;
}

.theme-toggle {
  position: relative;
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  place-items: center;
  border: 1px solid var(--line-2);
  border-radius: 2px;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.theme-toggle:hover {
  border-color: var(--ink-3);
  background: var(--surface-2);
}

.theme-icon {
  position: absolute;
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1;
}

.theme-icon--moon,
:root[data-theme="light"] .theme-icon--sun {
  opacity: 0;
}

:root[data-theme="light"] .theme-icon--moon {
  opacity: 1;
}

.site-main {
  min-height: calc(100vh - 156px);
}

.meta-label {
  color: var(--blog);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.72fr);
  gap: clamp(40px, 7vw, 96px);
  align-items: center;
  min-height: min(720px, calc(100vh - 64px));
  padding-block: 80px;
}

.hero h1 {
  margin-top: 22px;
  font-family: var(--serif);
  font-size: 7.5rem;
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0;
}

.lede {
  max-width: 42ch;
  margin-top: 26px;
  color: var(--ink-2);
  font-size: clamp(1.08rem, 1.8vw, 1.35rem);
  line-height: 1.5;
}

.archive-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  border-bottom: 1px solid var(--line-2);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.8rem;
  transition: border-color 160ms ease, color 160ms ease;
}

.archive-link:hover {
  border-color: var(--blog);
  color: var(--blog);
}

.instrument-panel {
  position: relative;
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line-2);
  border-radius: 3px;
  background: var(--surface);
  box-shadow: 0 20px 44px -34px rgba(0, 0, 0, 0.9);
}

.instrument-panel::before,
.instrument-panel::after {
  position: absolute;
  width: 9px;
  height: 9px;
  content: "";
  pointer-events: none;
  border-color: var(--ink-3);
  border-style: solid;
  opacity: 0.7;
}

.instrument-panel::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.instrument-panel::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 1px 1px 0;
}

.currently h2 {
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.currently dl {
  margin-top: 28px;
}

.currently dl > div {
  display: grid;
  grid-template-columns: minmax(110px, 0.8fr) 1fr;
  gap: 18px;
  padding-block: 14px;
  border-top: 1px solid var(--line);
}

.currently dt {
  color: var(--ink-2);
  font-size: 0.9rem;
}

.currently dd {
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.86rem;
}

.collection-list {
  scroll-margin-top: 96px;
  padding-block: 50px 0;
}

.collection-entry {
  --entry-accent: var(--blog);
  display: grid;
  min-height: 176px;
  grid-template-columns: 72px minmax(0, 1fr) auto;
  gap: clamp(20px, 4vw, 56px);
  align-items: center;
  padding: 30px clamp(18px, 3vw, 36px);
  border-top: 1px solid var(--line-2);
  background: transparent;
  transition: background-color 160ms ease, border-color 160ms ease;
}

.collection-entry:last-child {
  border-bottom: 1px solid var(--line-2);
}

.collection-entry--notes {
  --entry-accent: var(--notes);
}

.collection-entry--research {
  --entry-accent: var(--research);
}

.collection-entry:hover,
.collection-entry:focus-visible {
  border-color: color-mix(in srgb, var(--entry-accent) 55%, var(--line-2));
  background: var(--surface);
}

.collection-entry:focus-visible {
  outline-offset: -2px;
}

.collection-index {
  align-self: start;
  padding-top: 8px;
  color: var(--entry-accent);
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
}

.collection-content {
  display: grid;
  min-width: 0;
}

.collection-title {
  font-family: var(--serif);
  font-size: 2.55rem;
  line-height: 1;
}

.collection-description {
  margin-top: 13px;
  color: var(--ink-2);
}

.collection-empty {
  margin-top: 7px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.74rem;
}

.collection-action {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 12px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.collection-arrow {
  color: var(--entry-accent);
  font-size: 1rem;
  transition: transform 160ms ease;
}

.collection-entry:hover .collection-arrow,
.collection-entry:focus-visible .collection-arrow {
  transform: translateX(4px);
}

.recent-section {
  padding-block: 100px 130px;
}

.recent-section p {
  margin-top: 26px;
  padding-block: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.82rem;
}

.collection-page {
  --page-accent: var(--blog);
}

.collection-page--notes {
  --page-accent: var(--notes);
}

.collection-page--research {
  --page-accent: var(--research);
}

.collection-page .brand-mark {
  background: var(--page-accent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--page-accent) 70%, transparent);
}

.collection-main {
  padding-block: 0 120px;
}

.collection-hero {
  padding-block: 110px 86px;
}

.collection-page-index {
  color: var(--page-accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
}

.collection-hero h1 {
  max-width: 15ch;
  margin-top: 22px;
  font-family: var(--serif);
  font-size: 4.5rem;
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: 0;
}

.collection-hero > p:last-child {
  max-width: 62ch;
  margin-top: 28px;
  color: var(--ink-2);
  font-size: 1.22rem;
  line-height: 1.5;
}

.empty-state {
  display: grid;
  min-height: 180px;
  grid-template-columns: minmax(170px, 0.35fr) minmax(0, 1fr);
  gap: clamp(28px, 6vw, 90px);
  align-items: center;
  padding-block: 34px;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
}

.empty-state p:first-child {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.8rem;
}

.empty-state p:last-child {
  max-width: 56ch;
  color: var(--ink-3);
}

.status-key {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding-bottom: 26px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.68rem;
}

.status-key span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.status-key i {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--page-accent);
}

.status-key b {
  color: var(--ink-2);
  font-weight: 600;
  letter-spacing: 0.08em;
}

.research-projects {
  padding-top: 24px;
}

.research-projects > .collection-page-index {
  margin-bottom: 18px;
}

.research-project {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: clamp(22px, 5vw, 72px);
  align-items: start;
  padding-block: 34px;
  border-top: 1px solid var(--line-2);
  border-bottom: 1px solid var(--line-2);
  transition: background-color 160ms ease, border-color 160ms ease;
}

.research-project:hover,
.research-project:focus-visible {
  border-color: color-mix(in srgb, var(--research) 55%, var(--line-2));
  background: var(--surface);
}

.research-project:focus-visible {
  outline-offset: -2px;
}

.research-project-status {
  padding-top: 7px;
  color: var(--research);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.research-project-copy {
  display: grid;
  min-width: 0;
}

.research-project-copy b {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 2.4rem;
  font-weight: 400;
  line-height: 1.05;
}

.research-project-copy strong {
  margin-top: 10px;
  color: var(--ink-2);
  font-size: 0.94rem;
  font-weight: 500;
}

.research-project-copy small {
  max-width: 66ch;
  margin-top: 12px;
  color: var(--ink-3);
  font-size: 0.88rem;
  line-height: 1.55;
}

.research-project-arrow {
  align-self: center;
  color: var(--research);
  font-family: var(--mono);
  transition: transform 160ms ease;
}

.research-project:hover .research-project-arrow,
.research-project:focus-visible .research-project-arrow {
  transform: translateX(4px);
}

.site-footer {
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: flex-end;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.page-enter {
  animation: page-enter 700ms cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes page-enter {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 54px;
    padding-block: 70px;
  }

  .hero-copy {
    max-width: 720px;
  }

  .currently {
    max-width: 720px;
  }
}

@media (max-width: 720px) {
  .header-inner {
    gap: 8px;
  }

  .brand {
    margin-right: auto;
  }

  .site-nav {
    margin-left: 0;
  }

  .site-nav a {
    padding-inline: 7px;
    font-family: var(--sans);
    font-size: 0.78rem;
  }

  .nav-index {
    display: none;
  }
}

@media (max-width: 640px) {
  .hero {
    gap: 42px;
    padding-block: 54px 70px;
  }

  .hero h1 {
    font-size: 4rem;
  }

  .collection-list {
    padding-top: 26px;
  }

  .collection-entry {
    min-height: 190px;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 12px;
    padding: 26px 4px;
  }

  .collection-action {
    grid-column: 2;
    justify-self: start;
  }

  .collection-title {
    font-size: 2rem;
  }

  .recent-section {
    padding-block: 78px 96px;
  }

  .collection-main {
    padding-bottom: 88px;
  }

  .collection-hero {
    padding-block: 72px 62px;
  }

  .collection-hero h1 {
    font-size: 3rem;
  }

  .collection-hero > p:last-child {
    font-size: 1.08rem;
  }

  .empty-state {
    min-height: 190px;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .status-key {
    display: grid;
  }
}

@media (max-width: 480px) {
  .header-inner {
    flex-wrap: wrap;
    padding-block: 8px;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
  }

  .site-nav a {
    flex: 1 1 auto;
    text-align: center;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.notes-main {
  padding-bottom: 130px;
}

.notes-hero {
  padding-block: 100px 72px;
}

.notes-hero h1 {
  max-width: 16ch;
  margin-top: 22px;
  font-family: var(--serif);
  font-size: 4.8rem;
  font-weight: 400;
  line-height: 0.96;
}

.notes-hero > p:not(.collection-page-index) {
  max-width: 66ch;
  margin-top: 26px;
  color: var(--ink-2);
  font-size: 1.16rem;
}

.notes-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: 34px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.notes-stats b {
  margin-right: 6px;
  color: var(--notes);
  font-size: 1rem;
}

.notes-kicker {
  color: var(--notes);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.notes-chapters {
  border-top: 1px solid var(--line-2);
}

.notes-chapters > .notes-kicker {
  padding-block: 22px;
}

.notes-chapter {
  display: grid;
  min-height: 110px;
  grid-template-columns: 62px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  padding: 24px 4px;
  border-top: 1px solid var(--line);
  transition: background-color 160ms ease, padding 160ms ease;
}

.notes-chapter:hover,
.notes-chapter:focus-visible {
  padding-inline: 16px;
  background: var(--surface);
}

.notes-number {
  align-self: start;
  padding-top: 4px;
  color: var(--notes);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
}

.notes-chapter b {
  display: block;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 400;
  line-height: 1;
}

.notes-chapter small {
  display: block;
  margin-top: 10px;
  color: var(--ink-3);
  font-size: 0.9rem;
}

.notes-arrow {
  color: var(--notes);
  font-family: var(--mono);
  font-size: 1.1rem;
  transition: transform 160ms ease;
}

.notes-chapter:hover .notes-arrow,
.notes-chapter:focus-visible .notes-arrow {
  transform: translateX(4px);
}

.notes-layout {
  display: grid;
  grid-template-columns: minmax(190px, 0.28fr) minmax(0, 0.72fr);
  gap: clamp(36px, 8vw, 110px);
  align-items: start;
}

.notes-toc {
  position: sticky;
  top: 90px;
  padding-block: 4px;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.notes-toc > p {
  color: var(--notes);
  letter-spacing: 0.16em;
}

.notes-toc ol {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding: 0;
  list-style: none;
}

.notes-toc a {
  color: var(--ink-3);
}

.notes-toc a:hover {
  color: var(--ink);
}

.markdown-body {
  min-width: 0;
  color: var(--ink-2);
  font-size: 1.02rem;
  line-height: 1.78;
}

.markdown-body > :first-child {
  margin-top: 0;
}

.markdown-body h2,
.markdown-body h3,
.markdown-body h4 {
  scroll-margin-top: 92px;
  margin-top: 2.6em;
  margin-bottom: 0.7em;
  color: var(--ink);
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.08;
}

.markdown-body h2 { font-size: 2.35rem; }
.markdown-body h3 { font-size: 1.8rem; }
.markdown-body h4 { font-size: 1.4rem; }

.markdown-body p,
.markdown-body ul,
.markdown-body ol,
.markdown-body blockquote,
.markdown-body pre,
.markdown-body table {
  margin-block: 1em;
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.35em;
}

.markdown-body li + li {
  margin-top: 0.35em;
}

.markdown-body strong {
  color: var(--ink);
  font-weight: 600;
}

.markdown-body blockquote {
  padding: 12px 18px;
  border-left: 2px solid var(--notes);
  color: var(--ink);
  background: var(--surface);
}

.markdown-body pre {
  overflow-x: auto;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--surface);
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.65;
}

.markdown-body code {
  font-family: var(--mono);
  font-size: 0.88em;
}

.markdown-body :not(pre) > code {
  padding: 2px 5px;
  color: var(--notes);
  background: var(--surface-2);
}

.markdown-body .math-inline {
  display: inline-block;
  margin-inline: 0.12em;
  color: var(--ink);
  font-size: 1.02em;
}

.markdown-body .math-display {
  display: block;
  margin: 1.7em 0;
  overflow-x: auto;
  padding: 0.45em 0.75em;
  color: var(--ink);
  text-align: center;
}

.markdown-body .math-display .katex {
  font-size: 1.18em;
}


.markdown-body img {
  width: auto;
  max-width: 100%;
  height: auto;
  margin: 24px auto;
  border: 1px solid var(--line);
}

.markdown-body a {
  color: var(--notes);
  border-bottom: 1px solid color-mix(in srgb, var(--notes) 50%, transparent);
}

.markdown-body table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.markdown-body th,
.markdown-body td {
  min-width: 110px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

.markdown-body th {
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.research-hero h1 {
  max-width: 18ch;
  color: var(--research);
}

.research-hero > p:not(.collection-page-index) {
  max-width: 58ch;
  margin-top: 20px;
  color: var(--ink-2);
  font-size: 1.15rem;
}

.research-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  margin-top: 30px;
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.research-meta b {
  margin-right: 7px;
  color: var(--research);
  font-weight: 500;
}

.research-meta strong {
  color: var(--ink-2);
  font-weight: 500;
}

.research-detail .notes-toc > p,
.research-detail .notes-toc a:hover,
.research-detail .notes-toc a:focus-visible,
.research-article :not(pre) > code,
.research-article a {
  color: var(--research);
}

.research-article blockquote {
  border-left-color: var(--research);
}

.research-article a {
  border-bottom-color: color-mix(in srgb, var(--research) 50%, transparent);
}

.research-article table {
  margin-block: 1.5em;
}

.research-article caption {
  padding-bottom: 8px;
  color: var(--ink-2);
  font-family: var(--serif);
  font-size: 1rem;
  text-align: left;
}

.research-article td:first-child {
  color: var(--ink);
  font-weight: 500;
}

.research-visuals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-block: 1.6em 1.8em;
}

.research-chart {
  min-width: 0;
  margin: 0;
  padding: 20px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface-2) 74%, transparent);
  color: var(--ink);
}

.research-chart--wide {
  grid-column: 1 / -1;
}

.research-chart figcaption {
  display: grid;
  gap: 7px;
  margin-bottom: 12px;
}

.research-chart figcaption strong {
  max-width: 34ch;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.24;
}

.research-chart figcaption span {
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  line-height: 1.55;
  text-transform: uppercase;
}

.research-chart svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
  color: var(--ink);
}

.research-chart text {
  font-family: var(--mono);
}

.research-chart-source {
  margin-top: 9px;
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  line-height: 1.45;
  text-transform: uppercase;
}

.research-chart-fade {
  animation: research-chart-fade 720ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes research-chart-fade {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.notes-materials {
  margin-top: 70px;
  padding-top: 22px;
  border-top: 1px solid var(--line-2);
}

.notes-materials > div {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.notes-materials a {
  display: flex;
  min-height: 40px;
  align-items: center;
  gap: 12px;
  color: var(--ink-2);
  font-family: var(--mono);
  font-size: 0.76rem;
}

.notes-materials a:hover {
  color: var(--notes);
}

.notes-materials a span {
  color: var(--notes);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
}

@media (max-width: 760px) {
  .notes-hero {
    padding-block: 74px 52px;
  }

  .notes-hero h1 {
    font-size: 3.2rem;
  }

  .notes-layout {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .notes-toc {
    position: static;
    padding: 16px 0;
    border-block: 1px solid var(--line);
  }

  .notes-toc ol {
    display: flex;
    overflow-x: auto;
    gap: 18px;
    padding-bottom: 4px;
  }

  .notes-toc li {
    flex: 0 0 auto;
  }

  .notes-chapter {
    grid-template-columns: 42px minmax(0, 1fr) auto;
    gap: 12px;
  }

  .notes-chapter b {
    font-size: 1.6rem;
  }

  .research-project {
    grid-template-columns: 1fr auto;
    gap: 16px;
  }

  .research-project-status {
    grid-column: 1 / -1;
  }

  .research-project-copy b {
    font-size: 2rem;
  }

  .research-meta {
    display: grid;
    gap: 8px;
  }
}

@media (max-width: 720px) {
  .research-visuals {
    grid-template-columns: 1fr;
  }

  .research-chart {
    padding: 16px;
  }

  .research-chart figcaption strong {
    max-width: none;
    font-size: 0.95rem;
  }
}