:root {
  --paper: #f7f7f5;
  --surface: #ffffff;
  --ink: #172033;
  --muted: #667085;
  --line: #d8dce3;
  --blue: #2457e6;
  --blue-dark: #173ca3;
  --max: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 4px; }

.skip-link { position: fixed; left: 1rem; top: 1rem; z-index: 99; transform: translateY(-180%); padding: .65rem 1rem; background: var(--ink); color: white; }
.skip-link:focus { transform: none; }
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.nav { max-width: var(--max); margin: auto; min-height: 68px; padding: 0 28px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { font: 700 .88rem ui-monospace, SFMono-Regular, Consolas, monospace; text-decoration: none; letter-spacing: -.02em; }
.brand span { color: var(--blue); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: #475467; font-size: .88rem; font-weight: 600; text-decoration: none; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-tools { display: flex; align-items: center; gap: 10px; }
.lang { display: inline-flex; padding: 3px; border: 1px solid var(--line); background: white; }
.lang button { border: 0; background: transparent; color: var(--muted); padding: 5px 8px; font: 700 .7rem ui-monospace, monospace; cursor: pointer; }
.lang button[aria-pressed="true"] { background: var(--ink); color: white; }
.menu-button { display: none; border: 1px solid var(--line); background: white; width: 36px; height: 36px; font-size: 1rem; }

.container { width: min(var(--max), calc(100% - 56px)); margin: 0 auto; }
.hero { padding: clamp(40px, 7vw, 100px) 0 60px; border-bottom: 1px solid var(--line); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.rotating-word { display: inline-block; min-width: 10.5ch; color: var(--blue-dark); transition: opacity .22s ease, transform .22s ease; }
.rotating-word::after { content: "."; color: var(--ink); }
.rotating-word.is-changing { opacity: 0; transform: translateY(.18em); }
.kicker { margin: 0 0 22px; color: var(--blue); font: 700 .76rem ui-monospace, SFMono-Regular, Consolas, monospace; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { margin-top: 0; letter-spacing: -.04em; line-height: 1.08; }
h1 { max-width: 770px; margin-bottom: 24px; font-size: clamp(2.2rem, 4.3vw, 4rem); font-weight: 540; }
h2 { font-size: clamp(2rem, 4vw, 3.4rem); font-weight: 560; }
h3 { font-size: clamp(1.35rem, 2vw, 1.75rem); font-weight: 620; }
.lead { max-width: 810px; margin: 0 0 36px; color: #475467; font-size: clamp(1.08rem, 2vw, 1.35rem); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button { display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border: 1px solid var(--ink); background: var(--ink); color: white; font: 700 .78rem ui-monospace, monospace; text-decoration: none; }
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.button.secondary { background: transparent; color: var(--ink); border-color: #aab1bf; }
.button.secondary:hover { border-color: var(--ink); background: white; }
.text-link { color: var(--blue-dark); font-weight: 700; text-underline-offset: 4px; }

.section { padding: 96px 0; border-bottom: 1px solid var(--line); }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: 56px; margin-bottom: 56px; }
.section-head p { max-width: 670px; margin: 4px 0 0; color: var(--muted); font-size: 1.05rem; }
.project-list { border-top: 1px solid var(--ink); }
.project { position: relative; display: grid; grid-template-columns: 90px minmax(0, 1fr) 260px; gap: 28px; padding: 34px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.project:hover h3, .project:focus-visible h3 { color: var(--blue); }
.project-index { color: var(--muted); font: 600 .78rem ui-monospace, monospace; transition: color .18s ease; }
.project h3 { margin-bottom: 10px; transition: color .18s ease, transform .18s ease; }
.project p { max-width: 680px; margin: 0; color: var(--muted); }
.project-meta { color: #475467; font: 600 .75rem/1.7 ui-monospace, monospace; text-align: right; }
.project:hover .project-index, .project:focus-visible .project-index { color: var(--blue-dark); }
.project:focus-visible h3 { transform: translateX(5px); }
.project-cursor-label { position: absolute; z-index: 2; left: 0; top: 0; padding: 8px 10px; background: var(--ink); color: white; font: 700 .68rem/1 ui-monospace, monospace; letter-spacing: .04em; white-space: nowrap; pointer-events: none; opacity: 0; transform: translate3d(var(--cursor-x, 0), var(--cursor-y, 0), 0) scale(.94); transform-origin: left top; transition: opacity .14s ease, transform .14s ease; }

@media (hover: hover) and (pointer: fine) {
  .project.is-pointer-active h3 { transform: translateX(5px); }
  .project.is-pointer-active .project-cursor-label { opacity: 1; transform: translate3d(var(--cursor-x, 0), var(--cursor-y, 0), 0) scale(1); }
}
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.proof { padding: 30px 26px; border-right: 1px solid var(--line); }
.proof:last-child { border: 0; }
.proof strong { display: block; margin-bottom: 8px; font-size: 2rem; letter-spacing: -.04em; }
.proof span { color: var(--muted); font-size: .9rem; }

.page-intro { padding: 92px 0 70px; border-bottom: 1px solid var(--line); }
.page-intro h1 { max-width: 900px; font-size: clamp(2.8rem, 6vw, 5rem); }
.case-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding-top: 30px; border-top: 1px solid var(--line); }
.case-meta dt { color: var(--muted); font: 600 .7rem ui-monospace, monospace; text-transform: uppercase; letter-spacing: .06em; }
.case-meta dd { margin: 6px 0 0; font-weight: 620; }
.article { display: grid; grid-template-columns: minmax(0, 720px) 240px; justify-content: space-between; gap: 80px; padding: 80px 0; }
.article-main h2 { margin: 64px 0 20px; font-size: clamp(1.75rem, 3vw, 2.5rem); }
.article-main h2:first-child { margin-top: 0; }
.article-main p, .article-main li { color: #475467; }
.article-main ul { padding-left: 20px; }
.article-aside { align-self: start; position: sticky; top: 105px; border-top: 1px solid var(--ink); padding-top: 16px; }
.article-aside strong { display: block; margin-bottom: 12px; font: 700 .75rem ui-monospace, monospace; }
.article-aside a { display: block; padding: 7px 0; color: var(--muted); font-size: .85rem; text-decoration: none; }
.evidence { margin: 38px 0; background: white; border: 1px solid var(--line); }
.evidence img { width: 100%; }
.evidence figcaption { padding: 14px 18px; color: var(--muted); font-size: .78rem; border-top: 1px solid var(--line); }
.result { margin: 36px 0; padding: 28px 30px; border-left: 4px solid var(--blue); background: white; }
.result strong { display: block; color: var(--blue-dark); font-size: 2rem; letter-spacing: -.03em; }
.public-resource { margin: 38px 0; padding: 28px 30px; background: white; border: 1px solid var(--line); }
.public-resource .kicker { margin-bottom: 10px; }
.public-resource h3 { margin-bottom: 10px; font-size: 1.35rem; letter-spacing: -.02em; }
.public-resource p { margin: 0 0 18px; }
.timeline { border-top: 1px solid var(--ink); }
.timeline article { display: grid; grid-template-columns: 170px 1fr; gap: 28px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.timeline time { color: var(--muted); font: 600 .76rem ui-monospace, monospace; }
.timeline h3 { margin-bottom: 8px; font-size: 1.2rem; letter-spacing: -.02em; }
.timeline p { margin: 0; color: var(--muted); }
.skills { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.skill { padding: 26px; background: white; }
.skill h3 { font-size: 1.05rem; letter-spacing: -.01em; }
.skill p { margin: 0; color: var(--muted); font-size: .9rem; }
.closing { padding: 86px 0; }
.closing h2 { max-width: 820px; }
.site-footer { padding: 34px 0; border-top: 1px solid var(--line); color: var(--muted); font: 500 .75rem ui-monospace, monospace; }
.footer-row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }

.article-list { border-top: 1px solid var(--ink); }
.article-card { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 52px; padding: 42px 0; border-bottom: 1px solid var(--line); text-decoration: none; }
.article-card h2 { max-width: 760px; margin-bottom: 14px; font-size: clamp(1.7rem, 3vw, 2.55rem); }
.article-card p { max-width: 720px; margin: 0 0 18px; color: var(--muted); }
.article-card-meta { display: flex; flex-direction: column; gap: 8px; color: var(--blue-dark); font: 700 .7rem/1.5 ui-monospace, monospace; letter-spacing: .05em; }
.article-card-featured h2 { transition: color .18s ease, transform .18s ease; }
.article-card-featured:hover h2, .article-card-featured:focus-visible h2 { color: var(--blue); transform: translateX(5px); }
.article-card-planned { color: #475467; }
.article-status { color: var(--muted); }
.article-intro .lead { max-width: 760px; }
.article-byline { display: flex; flex-wrap: wrap; gap: 10px 24px; padding-top: 26px; border-top: 1px solid var(--line); color: var(--muted); font: 600 .74rem ui-monospace, monospace; }
.article-reading .standfirst { color: var(--ink); font-size: 1.25rem; line-height: 1.55; }
.article-cover { margin: 0 0 46px; background: white; border: 1px solid var(--line); }
.article-cover img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.article-cover figcaption { padding: 12px 16px; color: var(--muted); font-size: .76rem; border-top: 1px solid var(--line); }
.article-note { margin: 38px 0; padding: 26px 28px; border-left: 4px solid var(--blue); background: white; }
.article-note .kicker { margin-bottom: 10px; }
.article-note strong { display: block; font-size: 1.25rem; line-height: 1.45; }
.article-table-wrap { margin: 34px 0; overflow-x: auto; }
.article-table { width: 100%; border-collapse: collapse; background: white; }
.article-table th, .article-table td { width: 50%; padding: 16px 18px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-table th { color: var(--ink); font: 700 .75rem ui-monospace, monospace; }
.article-table td { color: #475467; }
.article-steps { padding-left: 24px; }
.article-steps li { margin-bottom: 16px; padding-left: 8px; }
.related-case { margin-top: 54px; padding: 30px; border: 1px solid var(--line); background: white; }
.related-case .kicker { margin-bottom: 10px; }
.related-case h3 { margin-bottom: 12px; }
.related-case p { margin: 0 0 18px; }

@media (max-width: 780px) {
  .container { width: min(100% - 36px, var(--max)); }
  .nav { padding: 0 18px; }
  .menu-button { display: inline-grid; place-items: center; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 68px; padding: 20px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .nav-links.open { display: grid; gap: 16px; }
  .section, .closing { padding: 68px 0; }
  .section-head, .article { grid-template-columns: 1fr; gap: 24px; }
  .project { grid-template-columns: 45px 1fr; }
  .project-meta { grid-column: 2; text-align: left; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof { border-right: 0; border-bottom: 1px solid var(--line); }
  .case-meta { grid-template-columns: 1fr 1fr; }
  .article-aside { display: none; }
  .timeline article { grid-template-columns: 1fr; gap: 7px; }
  .skills { grid-template-columns: 1fr; }
  .article-card { grid-template-columns: 1fr; gap: 18px; }
  .article-card-meta { flex-direction: row; flex-wrap: wrap; justify-content: space-between; }
}

@media (max-width: 480px) {
  .container { width: calc(100% - 28px); }
  .nav { padding: 0 14px; gap: 14px; }
  .hero { padding: 64px 0 56px; }
  .page-intro { padding: 64px 0 48px; }
  h1, .page-intro h1 { font-size: 2.35rem; }
  h2 { font-size: 1.85rem; }
  .rotating-word { min-width: 0; }
  .section, .closing { padding: 56px 0; }
  .section-head { margin-bottom: 38px; }
  .actions { align-items: stretch; }
  .button { width: 100%; justify-content: center; text-align: center; }
  .project { grid-template-columns: 30px minmax(0, 1fr); gap: 16px; padding: 28px 0; }
  .project-meta { grid-column: 2; }
  .case-meta { grid-template-columns: 1fr; gap: 18px; }
  .article { padding: 56px 0; }
  .article-main h2 { margin-top: 48px; }
  .result, .public-resource { margin: 30px 0; padding: 22px 20px; }
  .evidence { margin: 30px 0; }
  .skill { padding: 22px 20px; }
  .footer-row { flex-direction: column; align-items: flex-start; }
  .article-card { padding: 32px 0; }
  .article-note, .related-case { padding: 22px 20px; }
  .article-table { min-width: 540px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
  .hero-title-visible { display: none; }
  .hero-title .sr-only { position: static; width: auto; height: auto; margin: 0; overflow: visible; clip: auto; white-space: normal; }
  .project-cursor-label { display: none; }
  .project:hover h3, .project:focus-visible h3 { transform: none; }
}