@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=IBM+Plex+Sans+KR:wght@400;500;600&display=swap");

/* Shared editorial scale: display, section heading, body and caption. */
:root {
  --bg: #fff;
  --ink: #111;
  --muted: #686868;
  --line: #e5e5e5;
  --panel: #f3f3f3;
  --max: 1900px;
  --gutter: clamp(20px, 2.35vw, 40px);
  --section: clamp(72px, 7vw, 104px);
  --gap: clamp(32px, 4vw, 64px);
  --content-gap: clamp(32px, 4vw, 56px);
  --regular: 400;
  --strong: 500;
  --display: clamp(48px, 5.5vw, 80px);
  --heading: clamp(32px, 3.2vw, 46px);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  background: var(--bg);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "IBM Plex Sans KR", sans-serif;
  font-weight: var(--regular);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: -0.008em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: anywhere;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
img,
svg {
  display: block;
  max-width: 100%;
}
h1,
h2,
h3,
h4,
p {
  margin: 0;
}
h1,
h2,
h3,
h4 {
  font-weight: var(--strong);
  text-wrap: balance;
}
h2 {
  font-size: var(--heading);
  line-height: 1.14;
  letter-spacing: -0.03em;
}
h3 {
  font-size: clamp(24px, 2.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.02em;
}
h4 {
  font-size: 22px;
  line-height: 1.3;
  letter-spacing: -0.015em;
}
p + p {
  margin-top: 20px;
}
:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 5px;
}
body > header,
body > main,
body > footer {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
}
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 80px;
  display: grid;
  grid-template-columns: 190px 1fr auto;
  align-items: center;
  gap: 32px;
  padding: 12px var(--gutter);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand-logo {
  width: 100px;
  height: auto;
}
.nav {
  display: flex;
  justify-content: flex-end;
  gap: 28px;
  font-size: 14px;
  line-height: 1.4;
}
.nav a {
  padding: 10px 0;
}
.nav a,
.lang-btn {
  transition: opacity 0.2s ease;
}
.nav a:hover,
.lang-btn:hover {
  opacity: 0.55;
}
.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--muted);
}
.lang-btn {
  border: 0;
  background: none;
  padding: 10px 4px;
}
.lang-btn.active {
  color: var(--ink);
  font-weight: 600;
}
.menu {
  display: none;
  border: 0;
  background: none;
  padding: 10px 0;
  font-size: 14px;
}
main > section {
  padding: var(--section) var(--gutter);
  border-bottom: 1px solid var(--line);
}
.hero {
  padding-top: clamp(48px, 5vw, 72px);
  padding-bottom: var(--content-gap);
}
.eyebrow {
  margin: 0 0 24px;
  font-size: 12px;
  line-height: 1.5;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.hero-intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 28px;
  margin: 0 0 clamp(40px, 4.5vw, 64px);
  text-align: left;
}
.hero-logo {
  display: block;
  width: clamp(240px, 28vw, 380px);
  max-width: 100%;
  height: auto;
}
.hero-statement {
  min-width: 0;
  margin: 0;
  font-size: clamp(20px, 2vw, 30px);
  font-weight: 400;
  line-height: 1.4;
  letter-spacing: -0.02em;
  white-space: nowrap;
  text-wrap: nowrap;
}
.lead {
  max-width: 38em;
  font-size: clamp(20px, 1.65vw, 24px);
  line-height: 1.5;
  letter-spacing: -0.018em;
}
.body {
  max-width: 58ch;
  color: #373734;
  font-size: 16px;
  line-height: 1.75;
  text-wrap: pretty;
}
.small {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}
.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-items: start;
}
.split > * {
  min-width: 0;
}
.split > .body {
  align-self: end;
}
.split .lead + .body {
  margin-top: 24px;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0;
  transition:
    background 0.2s,
    color 0.2s;
}
.button:hover {
  background: var(--ink);
  color: var(--bg);
}
.video {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #111;
  border: 1px solid var(--line);
}
.video iframe {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 112%;
  height: 112%;
  transform: translate(-50%, -50%);
  border: 0;
  pointer-events: none;
}
.video-tag {
  position: absolute;
  left: 16px;
  bottom: 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 11px;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  z-index: 2;
}
.blank {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--panel);
  border: 1px solid var(--line);
  overflow: hidden;
  color: #777770;
  font-size: 12px;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.blank:before,
.blank:after {
  content: "";
  position: absolute;
  background: #d3d3cd;
}
.blank:before {
  width: 1px;
  height: 145%;
  transform: rotate(37deg);
}
.blank:after {
  height: 1px;
  width: 145%;
  transform: rotate(-13deg);
}
.blank span {
  position: relative;
  z-index: 1;
  background: var(--panel);
  padding: 8px 12px;
}
.featured {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-items: stretch;
}
.featured-copy {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
}
.featured-copy h2 {
  font-size: clamp(28px, 2.7vw, 40px);
  line-height: 1.2;
}
.featured-copy .body {
  margin-top: 20px;
}
.featured-copy .meta {
  padding-top: 8px;
}
.meta {
  display: grid;
  gap: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}
.text-link {
  display: inline-block;
  justify-self: start;
  margin-top: 12px;
  font-size: 14px;
  line-height: 1.6;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
}
.process {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: var(--content-gap);
  border-top: 1px solid var(--ink);
}
.process-item {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 16px;
  padding: 28px 24px 32px 0;
  border-bottom: 1px solid var(--line);
}
.process-item + .process-item {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}
.process-num {
  padding-top: 4px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}
.process-item p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}
#home-research,
#home-updates {
  margin-top: var(--content-gap);
}
.list {
  border-top: 1px solid var(--ink);
}
.list-row {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) minmax(140px, 200px) 24px;
  gap: 24px;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}
.list-row:hover {
  opacity: 0.6;
}
.list-index {
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}
.list-title {
  font-size: clamp(22px, 2.1vw, 30px);
  line-height: 1.35;
  letter-spacing: -0.02em;
  font-weight: var(--strong);
}
.list-meta {
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
  text-align: right;
}
.arrow {
  text-align: right;
  font-size: 20px;
}
.updates {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}
.update {
  min-width: 0;
  min-height: 280px;
  padding: 28px 24px 28px 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 32px;
}
.update:not(:nth-child(3n + 1)) {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}
.update-type {
  font-size: 12px;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 24px;
}
.update h3 {
  font-size: clamp(24px, 2vw, 28px);
  line-height: 1.3;
}
.update .small {
  margin-top: 16px;
}
.update-meta {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}
.archive-hero {
  padding-top: clamp(64px, 7vw, 104px);
  padding-bottom: clamp(48px, 5vw, 80px);
}
.archive-hero .split {
  align-items: end;
}
.archive-title {
  font-size: var(--display);
  line-height: 1.08;
  letter-spacing: -0.04em;
}
.archive-hero + section {
  padding-top: var(--content-gap);
}
.archive-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 64px 32px;
}
.project-card {
  min-width: 0;
}
.project-card .blank {
  transition: transform 0.3s ease;
}
.project-card:hover .blank {
  transform: translateY(-3px);
}
.project-info {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.7fr);
  gap: 12px 24px;
  padding-top: 20px;
}
.project-title {
  font-size: 22px;
  line-height: 1.35;
  font-weight: var(--strong);
  letter-spacing: -0.018em;
}
.project-meta {
  font-size: 12px;
  line-height: 1.6;
  text-align: right;
  color: var(--muted);
}
.project-desc {
  grid-column: 1/-1;
  max-width: 62ch;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}
.detail-title {
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.03em;
}
.detail-grid {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(0, 3fr);
  gap: var(--gap);
}
.detail-label {
  padding-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.detail-copy {
  max-width: 740px;
}
.detail-copy > p:not(.eyebrow) {
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
}
.detail-section-title {
  margin: 0 0 28px;
  font-size: clamp(28px, 2.8vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.025em;
}
.detail-media {
  margin-top: var(--content-gap);
}
.worlds {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}
.world {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: 250px;
  padding: 28px 24px 28px 0;
  border-bottom: 1px solid var(--line);
}
.world + .world {
  padding-left: 24px;
  border-left: 1px solid var(--line);
}
.world .lead {
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
}
.world .small {
  margin-top: auto;
  padding-top: 24px;
}
.credits {
  border-top: 1px solid var(--ink);
}
.credit {
  display: grid;
  grid-template-columns: minmax(150px, 1fr) minmax(0, 2fr);
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
}
.credit-role {
  color: var(--muted);
}
.article {
  max-width: 740px;
  margin: 0 auto;
}
.article .question {
  font-size: clamp(34px, 3.8vw, 54px);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 28px;
}
.article h2 {
  font-size: clamp(26px, 2.5vw, 36px);
  line-height: 1.3;
  margin: 56px 0 24px;
}
.article p:where(:not(.eyebrow):not(.lead)) {
  font-size: 17px;
  line-height: 1.8;
  text-wrap: pretty;
}
.article .lead {
  font-size: 21px;
  line-height: 1.6;
  color: #373734;
}
.refs {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}
.refs li + li {
  margin-top: 12px;
}
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 32px;
}
.filter {
  border: 1px solid var(--line);
  background: none;
  min-height: 44px;
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 0.03em;
}
.filter.active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--bg);
}
.empty {
  padding: 32px 0;
  color: var(--muted);
  font-size: 15px;
}
#contact .text-link {
  margin-top: 0;
  font-size: 16px;
}
#contact p + p {
  margin-top: 16px;
}
.footer {
  padding: 56px var(--gutter) 28px;
  background: var(--bg);
  color: var(--ink);
}
.footer-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--gap);
  align-items: center;
  margin-bottom: 48px;
}
.footer-logo {
  width: min(180px, 80%);
  height: auto;
}
.footer-main .lead {
  max-width: none;
  font-size: 20px;
  line-height: 1.45;
  white-space: nowrap;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* Research uses a reading column and a quiet, persistent table of contents. */
.list-copy {
  min-width: 0;
}
.list-copy .list-title {
  display: block;
}
.list-summary {
  display: block;
  max-width: 62ch;
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0;
}
.research-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 740px);
  gap: var(--gap);
  max-width: calc(940px + var(--gap));
  margin: 0 auto;
  align-items: start;
}
.research-hero .article {
  max-width: calc(940px + var(--gap));
  padding-left: calc(200px + var(--gap));
}
.research-back {
  display: inline-block;
  margin-bottom: 36px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}
.research-back:hover {
  color: var(--ink);
}
.research-reading {
  padding-top: 56px;
}
.research-toc {
  position: sticky;
  top: 112px;
}
.research-toc .eyebrow {
  margin-bottom: 20px;
}
.research-toc ol {
  margin: 0;
  padding-left: 20px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}
.research-toc li {
  padding-left: 4px;
  margin-bottom: 14px;
}
.research-toc a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
  color: var(--ink);
}
.research-article {
  width: 100%;
  min-width: 0;
  margin: 0;
}
.research-article strong {
  font-weight: 600;
}
.research-article em {
  font-style: normal;
  color: var(--muted);
}
.research-article .research-intro p {
  font-size: 18px;
  line-height: 1.85;
}
.research-article p + p {
  margin-top: 18px;
}
.research-article h3 {
  font-size: 23px;
  line-height: 1.4;
  letter-spacing: -0.018em;
  margin: 32px 0 18px;
}
.research-article ul {
  font-size: 17px;
  line-height: 1.8;
  margin: 20px 0;
  padding-left: 22px;
}
.research-question {
  margin: 36px 0 0;
  padding: 24px 0 24px 24px;
  border-left: 2px solid var(--ink);
}
.research-question .eyebrow {
  display: block;
  margin: 0 0 12px;
}
.research-article .research-question p {
  font-size: 23px;
  line-height: 1.55;
  letter-spacing: -0.02em;
}
.research-chapter {
  padding-top: 48px;
  margin-top: 48px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 112px;
}
.research-article .research-chapter > h2 {
  margin: 0 0 28px;
  font-size: 30px;
  line-height: 1.35;
  text-wrap: pretty;
}
.chapter-number {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.04em;
  color: var(--muted);
  font-weight: 400;
}
.research-citations {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}
.research-citations a {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.experience-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.experience-link span {
  font-size: 12px;
  color: var(--muted);
}
.experience-link strong {
  font-size: 18px;
  font-weight: 500;
}
.research-article .refs {
  font-size: 14px;
  line-height: 1.7;
}
.research-article .refs li {
  padding-left: 6px;
  scroll-margin-top: 112px;
}
.research-article .refs a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.research-article .refs li + li {
  margin-top: 20px;
}
.related-research .list-row {
  grid-template-columns: 24px minmax(0, 1fr) 24px;
  gap: 12px;
}
.related-research .list-meta {
  grid-column: 2;
  grid-row: 2;
  text-align: left;
}
.related-research .arrow {
  grid-column: 3;
  grid-row: 1;
}
.related-research .list-title {
  font-size: 22px;
}

/* Korean words stay together, with extra line height for dense glyphs. */
html:lang(ko) body {
  word-break: keep-all;
}
html:lang(ko)
  :is(h2, h3, h4, .detail-title, .question, .list-title, .project-title) {
  letter-spacing: -0.02em;
  line-height: 1.25;
}
html:lang(ko) .lead {
  line-height: 1.6;
}

/* Single entries use the full grid instead of leaving empty card columns. */
.project-card:only-child {
  grid-column: 1/-1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  align-items: start;
}
.project-card:only-child .project-info {
  grid-template-columns: 1fr;
  padding-top: 0;
  gap: 20px;
}
.project-card:only-child .project-title {
  font-size: clamp(26px, 2.7vw, 38px);
}
.project-card:only-child .project-meta {
  text-align: left;
}
.update:only-child {
  grid-column: 1/-1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--gap);
  min-height: 0;
  padding: 28px 0 32px;
}
.update:only-child .update-meta {
  align-self: end;
  justify-self: end;
}
.update:only-child .small {
  max-width: 54ch;
}

@media (max-width: 1100px) {
  .process-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .worlds {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .world:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }
  .project-info {
    grid-template-columns: 1fr;
  }
  .project-meta {
    text-align: left;
  }
}

@media (max-width: 900px) {
  .header {
    grid-template-columns: 1fr auto auto;
    gap: 24px;
    min-height: 72px;
  }
  .brand-logo {
    width: 92px;
  }
  .nav {
    display: none;
  }
  .menu {
    display: block;
  }
  .header.open .nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 12px var(--gutter) 20px;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
  }
  .header.open .nav a {
    padding: 12px 0;
    font-size: 16px;
  }
  .split,
  .featured,
  .project-card:only-child {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .split > .body {
    max-width: 62ch;
  }
  .featured-copy {
    gap: 24px;
  }
  .detail-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .updates {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .update:not(:nth-child(3n + 1)) {
    padding-left: 0;
    border-left: 0;
  }
  .update:nth-child(even) {
    padding-left: 24px;
    border-left: 1px solid var(--line);
  }
  .list-row {
    grid-template-columns: 28px minmax(0, 1fr) 24px;
    gap: 20px;
  }
  .list-meta {
    grid-column: 2;
    grid-row: 2;
    text-align: left;
  }
  .list-row .arrow {
    grid-column: 3;
    grid-row: 1;
  }
  .archive-grid {
    gap: 48px 24px;
  }

  .research-layout {
    grid-template-columns: 1fr;
    max-width: 740px;
    gap: 36px;
  }
  .research-hero .article {
    max-width: 740px;
    padding-left: 0;
  }
  .research-toc {
    position: static;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--line);
  }
  .research-toc ol {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
  .research-toc li {
    margin-bottom: 12px;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 20px;
    --section: 64px;
    --content-gap: 32px;
    --gap: 28px;
    --display: clamp(38px, 9.5vw, 60px);
    --heading: clamp(30px, 7.4vw, 40px);
  }
  html {
    scroll-padding-top: 84px;
  }
  body {
    font-size: 16px;
    letter-spacing: 0;
  }
  .header {
    min-height: 68px;
    gap: 16px;
  }
  .brand-logo {
    width: 84px;
  }
  .hero,
  .archive-hero {
    padding-top: 48px;
  }
  .hero-intro {
    gap: 24px;
    margin-bottom: 36px;
  }
  .hero-logo {
    width: clamp(164px, 46vw, 220px);
  }
  .hero-statement {
    font-size: clamp(13px, 3.7vw, 22px);
    line-height: 1.4;
    letter-spacing: -0.025em;
  }
  .update:only-child {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .update:only-child .update-meta {
    justify-self: start;
  }
  .eyebrow {
    margin-bottom: 20px;
  }
  .body,
  .detail-copy > p:not(.eyebrow),
  .article p:where(:not(.eyebrow):not(.lead)) {
    font-size: 16px;
    line-height: 1.8;
  }
  .lead,
  .article .lead {
    font-size: 20px;
    line-height: 1.6;
  }
  .video-tag {
    left: 12px;
    bottom: 10px;
    font-size: 10px;
  }
  .process,
  .updates,
  .archive-grid,
  .worlds,
  .footer-main {
    grid-template-columns: 1fr;
  }
  .process-item {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 16px;
    padding: 24px 0;
  }
  .process-item + .process-item {
    padding-left: 0;
    border-left: 0;
  }
  .update,
  .update:nth-child(n) {
    min-height: 0;
    padding: 24px 0;
    border-left: 0;
    gap: 28px;
  }
  .world,
  .world + .world {
    min-height: 0;
    padding: 24px 0;
    border-left: 0;
  }
  .world .small {
    padding-top: 12px;
  }
  .list-row {
    gap: 8px 12px;
    padding: 24px 0;
  }
  .list-title {
    font-size: 22px;
  }
  .list-meta {
    font-size: 12px;
  }
  .detail-title {
    font-size: clamp(34px, 8vw, 48px);
  }
  .detail-section-title {
    font-size: 30px;
    margin-bottom: 24px;
  }
  .article .question {
    font-size: 34px;
  }
  .article h2 {
    font-size: 26px;
    margin-top: 40px;
  }
  .credit {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 16px 0;
  }
  .footer {
    padding-top: 48px;
  }
  .footer-main {
    gap: 28px;
    margin-bottom: 40px;
  }
  .footer-logo {
    width: 136px;
  }
  .footer-main .lead {
    font-size: clamp(12px, 4vw, 20px);
  }
  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    font-size: 11px;
  }

  .research-reading {
    padding-top: 32px;
  }
  .research-back {
    margin-bottom: 28px;
  }
  .research-article .research-intro p {
    font-size: 16px;
    line-height: 1.8;
  }
  .research-toc ol {
    grid-template-columns: 1fr;
  }
  .research-chapter {
    padding-top: 32px;
    margin-top: 36px;
  }
  .research-article .research-chapter > h2 {
    font-size: 25px;
    margin-bottom: 24px;
  }
  .research-article h3 {
    font-size: 21px;
  }
  .research-article ul {
    font-size: 16px;
  }
  .research-question {
    padding: 20px 0 20px 18px;
    margin-top: 28px;
  }
  .research-article .research-question p {
    font-size: 20px;
  }
  .experience-link {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
  .list-summary {
    font-size: 13px;
  }
}

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