/* Yike Chen — typography, paper and an original abstract print. */
:root {
  --ink: #181b1a;
  --body: #4d504e;
  --muted: #62655f;
  --accent: #2845cf;
  --paper: #f2f0e9;
  --line: #c9cbc3;
  --serif: "Bodoni MT", Didot, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 32px; -webkit-text-size-adjust: 100%; }
body { margin: 0; min-width: 280px; min-height: 100vh; display: flex; flex-direction: column; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 16px; line-height: 1.75; -webkit-font-smoothing: antialiased; }
main { flex: 1; }
a { color: var(--accent); text-underline-offset: 5px; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }
img { display: block; max-width: 100%; height: auto; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--ink); font-weight: 400; line-height: 1.17; }
p { margin-bottom: 18px; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 6px; }
.shell { width: min(1200px, calc(100% - 112px)); margin-inline: auto; }
.icon-arrow { display: inline-block; width: 12px; height: 12px; flex-shrink: 0; vertical-align: middle; }
.skip-link { position: absolute; top: 12px; left: 16px; z-index: 100; padding: 8px 16px; background: var(--paper); color: var(--ink); transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.header-inner { min-height: 100px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.brand { color: var(--ink); font-size: 14px; font-weight: 500; text-decoration: none; white-space: nowrap; }
.site-nav { display: flex; align-items: center; gap: 29px; }
.site-nav a { padding: 9px 0; color: var(--body); font-size: 12px; text-decoration: none; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent); text-decoration: underline; }
.eyebrow { font-family: var(--sans); font-size: 10px; font-weight: 400; line-height: 1.5; letter-spacing: .09em; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 9px; color: var(--accent); font-size: 12px; font-weight: 400; text-decoration: underline; }
.link-row { display: flex; flex-wrap: wrap; gap: 16px 27px; margin-top: 23px; }
/* The cover uses separate areas for the name, artwork and introduction. */
.cover { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); grid-template-rows: auto auto; column-gap: 20px; row-gap: 46px; padding: 58px 0 122px; align-items: start; }
.cover-name { grid-column: 1 / 8; grid-row: 1; position: relative; z-index: 1; margin: 8px 0 0 -10px; font-family: var(--serif); font-size: clamp(145px, 16.8vw, 244px); line-height: .77; letter-spacing: -.075em; }
.cover-name > span { display: block; }
.cover-name .surname { margin: 12px 0 0 100px; font-style: italic; font-weight: 400; letter-spacing: -.085em; }
.cover-art { grid-column: 8 / 13; grid-row: 1 / 3; align-self: center; width: calc(100% + 10px); margin: 0 0 0 -10px; }
.cover-art img { width: 100%; }
.cover-note { grid-column: 2 / 6; grid-row: 2; max-width: 350px; padding-top: 6px; }
.cover-note p { color: var(--body); font-size: 14px; line-height: 1.85; margin-bottom: 14px; }
.cover-note p:first-child { color: var(--ink); }
.cover-note > a { display: inline-block; margin-top: 9px; font-size: 12px; }
.selected-work { margin: 0 0 125px; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 25px; padding-bottom: 27px; border-bottom: 1px solid var(--line); }
.section-heading h2 { font-family: var(--sans); font-size: 15px; margin: 0; font-weight: 400; }
.section-heading > a { font-size: 12px; }
.work-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 160px; padding: 43px 70px 0 0; }
.work-item:nth-child(2) { padding-top: 92px; }
.work-item h3 { margin: 0 0 24px; font-family: var(--serif); font-size: clamp(39px, 4.2vw, 57px); line-height: .98; letter-spacing: -.045em; }
.work-item h3 a { color: var(--ink); text-decoration: none; }
.work-item h3 a:hover { color: var(--accent); }
.work-item > p { max-width: 360px; color: var(--body); font-size: 14px; line-height: 1.85; margin: 0; }
.work-item > .work-role { margin: 0 0 17px; color: var(--accent); font-size: 11px; line-height: 1.7; }
.work-item > .work-finding { margin-top: 18px; padding-left: 16px; border-left: 1px solid var(--accent); color: var(--ink); }
.work-links { display: flex; flex-wrap: wrap; gap: 25px; margin-top: 24px; }
.work-links a { font-size: 12px; }
.research-note { max-width: 720px; margin: 60px 0 0 95px; color: var(--body); font-size: 13px; line-height: 1.9; }
.research-note + .research-note { margin-top: 18px; }
.education { display: grid; grid-template-columns: 140px 1fr 1fr; gap: 48px; padding: 28px 0 78px; border-top: 1px solid var(--line); }
.education > h2 { margin: 4px 0 0; font-family: var(--sans); font-size: 15px; }
.education-entry h3 { max-width: 340px; margin-bottom: 15px; font-family: var(--serif); font-size: 26px; letter-spacing: -.025em; line-height: 1.2; }
.education-entry p { margin: 0; color: var(--body); font-size: 12px; line-height: 1.9; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; padding: 28px 0 35px; border-top: 1px solid var(--line); }
.footer-inner p { margin: 0; }
.footer-name { font-family: var(--serif); font-size: 21px; letter-spacing: -.04em; }
.footer-links { display: flex; gap: 23px; margin-left: auto; }
.footer-links a { font-size: 12px; color: var(--body); text-decoration: none; }
.footer-links a:hover { color: var(--accent); text-decoration: underline; }
.copyright { color: var(--muted); font-size: 10px; }
/* Interior pages keep the same palette and let the research be read. */
.page-intro { padding: 60px 0 48px; max-width: 840px; }
.page-intro .eyebrow { display: none; }
.page-intro h1 { margin-bottom: 26px; font-family: var(--serif); font-size: clamp(58px, 7.3vw, 94px); letter-spacing: -.06em; }
.page-lede { max-width: 680px; margin: 0; color: var(--body); font-size: 15px; line-height: 1.9; }
.section-nav { display: flex; flex-wrap: wrap; gap: 12px 30px; padding: 0 0 25px; }
.section-nav a { color: var(--body); font-size: 12px; text-decoration: none; }
.section-nav a:hover { text-decoration: underline; }
.research-list { margin-bottom: 80px; }
.research-entry { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 65px; border-top: 1px solid var(--line); padding: 43px 0 50px; }
.entry-meta { color: var(--muted); font-size: 11px; line-height: 1.8; padding-top: 6px; }
.entry-period { margin-bottom: 11px; }
.entry-role { max-width: 175px; }
.entry-content { max-width: 720px; }
.entry-content h2 { font-family: var(--serif); font-size: 35px; letter-spacing: -.025em; margin-bottom: 26px; }
.entry-content > p { color: var(--body); font-size: 14px; line-height: 1.95; }
.entry-content > .study-question { margin-bottom: 24px; color: var(--ink); font-family: var(--serif); font-size: 23px; line-height: 1.45; letter-spacing: -.015em; }
.study-subtitle { margin: 28px 0 11px; font-family: var(--sans); font-size: 14px; font-weight: 600; line-height: 1.5; letter-spacing: 0; }
.research-figure { margin: 31px 0 19px; padding-top: 21px; border-top: 1px solid var(--line); }
.figure-image { display: block; }
.figure-image img { width: 100%; height: auto; }
.research-figure figcaption { margin-top: 17px; color: var(--body); font-size: 12px; line-height: 1.85; }
.research-figure figcaption p { margin-bottom: 10px; }
.research-figure figcaption strong { color: var(--ink); font-weight: 500; }
.figure-links { display: flex; flex-wrap: wrap; gap: 11px 23px; margin-top: 12px; }
.result-data { margin: 0 0 24px; color: var(--body); font-size: 12px; }
.result-data summary { width: fit-content; padding: 6px 0; color: var(--accent); cursor: pointer; }
.result-data table { width: 100%; table-layout: fixed; border-collapse: collapse; margin: 14px 0; font-size: 12px; line-height: 1.7; }
.result-data caption { text-align: left; font-size: 11px; margin-bottom: 14px; }
.comparison-column { width: 48%; }
.difference-column { width: 21%; }
.interval-column { width: 31%; }
.result-data th, .result-data td { text-align: left; vertical-align: top; padding: 11px 6px; border-bottom: 1px solid var(--line); }
.result-data th { color: var(--ink); font-weight: 500; }
.result-data th:first-child { padding-left: 0; }
.result-data th span { display: block; color: var(--body); font-weight: 400; }
.result-data td { font-variant-numeric: tabular-nums; }
.result-data > p { font-size: 11px; line-height: 1.9; }
.publication-group { margin: 4px 0 60px; }
.page-publications main { padding-bottom: 35px; }
.group-title { margin-bottom: 0; padding-bottom: 18px; border-bottom: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.publication { display: grid; grid-template-columns: 65px minmax(0, 1fr); gap: 30px; padding: 32px 0 36px; }
.publication-number { padding-top: 5px; color: var(--muted); font-size: 11px; }
.publication-content { max-width: 850px; }
.publication h3 { font-family: var(--serif); font-size: 31px; letter-spacing: -.025em; line-height: 1.35; margin-bottom: 21px; }
.venue { font-size: 12px; color: var(--accent); margin-bottom: 11px; }
.authors { color: var(--body); font-size: 13px; line-height: 1.9; margin-bottom: 12px; }
.self { color: var(--ink); font-weight: 600; }
.publication-note { color: var(--muted); font-size: 12px; }
.publication-summary { color: var(--body); font-size: 13px; line-height: 1.85; max-width: 760px; margin-bottom: 14px; }
.project-grid { padding-bottom: 70px; }
.project-card { display: grid; grid-template-columns: 65px minmax(0, 1fr); column-gap: 30px; padding: 38px 0 46px; border-top: 1px solid var(--line); }
.project-card > :not(.project-topline) { grid-column: 2; }
.project-topline { grid-column: 1; grid-row: 1; padding-top: 8px; }
.project-number { color: var(--muted); font-size: 11px; }
.project-card h2 { max-width: 800px; font-family: var(--serif); font-size: 36px; letter-spacing: -.03em; margin-bottom: 23px; }
.project-card > p { max-width: 760px; color: var(--body); font-size: 14px; line-height: 1.95; }
.project-card > .project-context { margin-bottom: 12px; color: var(--accent); font-size: 11px; }
.coursework .project-card h3 { max-width: 800px; margin-bottom: 18px; font-family: var(--serif); font-size: 29px; letter-spacing: -.025em; }
.project-method { max-width: 760px; margin: 3px 0 0; }
.project-method summary { width: fit-content; padding: 6px 0; font-size: 12px; color: var(--accent); cursor: pointer; }
.project-method[open] summary { margin-bottom: 15px; }
.visual-link { display: block; text-decoration: none; }
.project-visual { width: 100%; border: 1px solid var(--line); }
.visual-open { display: inline-flex; align-items: center; gap: 8px; padding: 8px 0; font-size: 11px; color: var(--accent); }
.visual-link:hover .visual-open { text-decoration: underline; }
.project-card .link-row { margin-top: 18px; }
@media (max-width: 1050px) {
  .shell { width: calc(100% - 80px); }
  .cover { column-gap: 15px; row-gap: 36px; padding-top: 52px; }
  .cover-name { font-size: 19vw; }
  .cover-name .surname { margin-left: 65px; }
  .cover-art { grid-column: 8 / 13; }
  .cover-note { grid-column: 2 / 7; }
  .work-grid { gap: 90px; padding-right: 15px; }
  .research-entry { grid-template-columns: 160px minmax(0, 1fr); gap: 35px; }
  .entry-content h2 { font-size: 31px; }
}
@media (max-width: 700px) {
  .shell { width: calc(100% - 48px); }
  .header-inner { display: block; padding: 22px 0 14px; min-height: auto; }
  .brand { font-size: 14px; }
  .site-nav { margin-top: 12px; gap: 0; justify-content: space-between; }
  .site-nav a { font-size: 11px; padding: 7px 0; }
  .cover { grid-template-columns: repeat(6, minmax(0, 1fr)); grid-template-rows: auto auto auto; column-gap: 12px; row-gap: 31px; padding: 43px 0 77px; }
  .cover-name { grid-column: 1 / 7; grid-row: 1; font-size: clamp(112px, 29vw, 182px); margin-left: -5px; }
  .cover-name .surname { margin: 9px 0 0 55px; }
  .cover-art { grid-column: 2 / 7; grid-row: 2; width: 100%; max-width: 350px; margin: 0; justify-self: end; }
  .cover-note { grid-column: 1 / 6; grid-row: 3; padding: 0; max-width: 340px; }
  .cover-note p { font-size: 13px; }
  .cover-note > a { font-size: 11px; }
  .selected-work { margin-bottom: 75px; }
  .section-heading { padding-bottom: 21px; }
  .section-heading h2 { font-size: 14px; }
  .section-heading > a { font-size: 11px; }
  .work-grid { grid-template-columns: 1fr; gap: 52px; padding: 30px 0 0; }
  .work-item:nth-child(2) { padding-top: 0; margin-left: 35px; }
  .work-item h3 { font-size: 43px; margin-bottom: 20px; }
  .work-item > p { font-size: 13px; }
  .work-item > .work-role { font-size: 10px; margin-bottom: 15px; }
  .work-item > .work-finding { padding-left: 13px; margin-top: 16px; }
  .work-links { margin-top: 19px; }
  .work-links a { font-size: 11px; }
  .research-note { margin: 43px 0 0; font-size: 12px; }
  .education { grid-template-columns: 1fr; gap: 28px; padding: 23px 0 49px; }
  .education > h2 { margin: 0; font-size: 14px; }
  .education-entry h3 { max-width: 320px; font-size: 25px; margin-bottom: 11px; }
  .text-link { font-size: 11px; }
  .footer-inner { padding: 24px 0 29px; gap: 18px 22px; }
  .footer-name { font-size: 20px; }
  .footer-links { gap: 19px; }
  .footer-links a { font-size: 11px; }
  .copyright { flex-basis: 100%; font-size: 9px; }
  .page-intro { padding: 39px 0 35px; }
  .page-intro h1 { font-size: clamp(49px, 11vw, 70px); }
  .page-lede { font-size: 14px; line-height: 1.85; }
  .section-nav { gap: 9px 21px; padding-bottom: 22px; }
  .section-nav a { font-size: 11px; }
  .research-entry { grid-template-columns: 1fr; gap: 19px; padding: 28px 0 35px; }
  .entry-meta { padding-top: 0; font-size: 10px; }
  .entry-period { margin-bottom: 6px; }
  .entry-role { max-width: none; margin: 0; }
  .entry-content h2 { font-size: 30px; margin-bottom: 21px; }
  .entry-content > p { font-size: 13px; line-height: 1.95; }
  .entry-content > .study-question { font-size: 22px; line-height: 1.45; }
  .study-subtitle { font-size: 13px; margin-top: 25px; }
  .research-figure { margin-top: 27px; padding-top: 19px; }
  .research-figure figcaption { font-size: 11px; }
  .result-data, .result-data table { font-size: 11px; }
  .result-data th, .result-data td { padding: 10px 5px; }
  .research-list { margin-bottom: 40px; }
  .publication-group { margin-bottom: 35px; }
  .publication { grid-template-columns: 22px minmax(0, 1fr); gap: 13px; padding-top: 25px; }
  .publication h3 { font-size: 27px; margin-bottom: 20px; }
  .publication-number { font-size: 10px; }
  .authors { font-size: 12px; }
  .venue, .publication-note { font-size: 11px; }
  .publication-summary { font-size: 12px; }
  .project-grid { padding-bottom: 40px; }
  .project-card { grid-template-columns: 22px minmax(0, 1fr); column-gap: 13px; padding: 28px 0 33px; }
  .project-topline { padding-top: 6px; }
  .project-number { font-size: 10px; }
  .project-card h2 { font-size: 30px; margin-bottom: 20px; }
  .project-card > p { font-size: 13px; }
  .project-card > .project-context { font-size: 10px; }
  .coursework .project-card h3 { font-size: 25px; }
  .project-method summary, .visual-open { font-size: 11px; }
}
@media (max-width: 360px) {
  .shell { width: calc(100% - 36px); }
  .cover-name { font-size: 112px; }
  .cover-name .surname { margin-left: 39px; }
  .work-item h3 { font-size: 39px; }
  .page-intro h1 { font-size: 46px; }
  .entry-content h2, .project-card h2 { font-size: 28px; }
  .publication h3 { font-size: 25px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }