:root {
  --ink: #202b29;
  --muted: #626c68;
  --green: #185b46;
  --line: #e1e7e3;
  --soft: #f4f7f4;
  --width: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; color: var(--ink); background: #fff; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 3px solid #438b6f; outline-offset: 5px; }
img { display: block; width: 100%; height: auto; }
sup { font-size: .65em; vertical-align: super; }
.skip-link { position: absolute; top: -80px; left: 20px; padding: 12px; background: #fff; z-index: 10; }
.skip-link:focus { top: 10px; }
.site-header { max-width: var(--width); margin: auto; padding: 19px 24px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 9px; font-size: 18px; font-weight: 750; letter-spacing: -.5px; }
.brand-mark { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 6px; background: var(--green); color: white; font-family: Georgia, serif; font-size: 21px; }
nav { display: flex; gap: 25px; font-size: 13px; color: var(--muted); }
nav a:hover, footer>a:hover { color: var(--green); text-decoration: underline; text-underline-offset: 5px; }
.hero { max-width: var(--width); margin: auto; padding: 43px 24px 30px; text-align: center; }
h1 { margin: 0 0 23px; font-weight: 650; line-height: 1.25; letter-spacing: -1.1px; }
.project-name { display: block; margin-bottom: 9px; color: var(--green); font-size: 45px; letter-spacing: -1.9px; }
.paper-title { display: block; font-size: clamp(25px, 3.3vw, 35px); }
.authors { margin: 0 0 8px; font-size: 14px; line-height: 1.9; }
.authors span { margin-left: 16px; }
.affiliations { display: flex; flex-wrap: wrap; justify-content: center; gap: 5px 18px; color: var(--muted); font-size: 12px; }
.author-note { margin: 9px 0 20px; color: var(--muted); font-size: 11px; }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: stretch; gap: 10px; }
.resource-pill { display: inline-flex; align-items: center; gap: 9px; min-height: 40px; border: 1px solid var(--line); border-radius: 24px; padding: 8px 15px; font-size: 12px; }
.resource-pill { background: var(--soft); }
.play-link { background: var(--green); border-color: var(--green); color: #fff; }
.play-link:hover { background: #124735; border-color: #124735; }
.resource-pill strong { font-weight: 600; }
.resource-pill>span { padding-left: 9px; border-left: 1px solid #ccd7cf; color: var(--muted); font-size: 10px; }
.resource-pill svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linejoin: round; stroke-linecap: round; }
.section { max-width: var(--width); margin: auto; padding: 48px 24px; border-top: 1px solid var(--line); }
.overview { padding-top: 0; border-top: 0; }
.section-heading { max-width: 780px; margin-bottom: 25px; }
.centered { margin-left: auto; margin-right: auto; text-align: center; }
h2 { font-size: 29px; line-height: 1.3; font-weight: 650; letter-spacing: -.7px; margin: 0 0 11px; }
.section-heading>p { font-size: 15px; color: var(--muted); margin: 0; }
.wide-figure { margin: 0; }
.wide-figure>a { display: block; padding: 9px; background: white; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.wide-figure>a:hover { border-color: #9cb6a8; }
figcaption { margin: 10px auto 0; max-width: 850px; color: var(--muted); font-size: 12px; text-align: center; }
.teaser { margin-bottom: 42px; }
.abstract { max-width: 850px; margin: 0 auto; font-size: 16px; line-height: 1.85; text-align: left; }
h3 { font-size: 16px; line-height: 1.4; font-weight: 650; margin: 0 0 9px; letter-spacing: -.2px; }
.table-wrapper { border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 14px; }
caption { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
th,td { padding: 16px 21px; border-bottom: 1px solid var(--line); }
thead { background: var(--soft); }
th { font-weight: 600; }
tbody th { width: 30%; }
td { color: var(--muted); }
tbody tr:last-child>* { border-bottom: 0; }
footer { max-width: var(--width); margin: auto; padding: 25px 24px 30px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: center; gap: 20px; }
@media(max-width:650px) {
  html { scroll-padding-top: 20px; }
  .site-header { padding: 16px 18px; gap: 15px; }
  .brand { font-size: 16px; }
  .brand-mark { width: 23px; height: 23px; font-size: 18px; }
  nav { gap: 12px; font-size: 11px; }
  .hero { padding: 32px 18px 25px; }
  .project-name { font-size: 37px; }
  .paper-title { font-size: 25px; letter-spacing: -.7px; }
  .authors { font-size: 12px; }
  .authors span { margin-left: 7px; }
  .affiliations { gap: 4px 10px; font-size: 10px; }
  .hero-actions { gap: 8px; }
  .resource-pill { padding: 8px 12px; min-height: 37px; font-size: 11px; }
  .section { padding: 34px 18px; }
  .overview { padding-top: 0; }
  h2 { font-size: 25px; }
  .section-heading>p { font-size: 14px; }
  .teaser { margin-bottom: 30px; }
  .wide-figure>a { padding: 4px; }
  figcaption { font-size: 11px; }
  .abstract { font-size: 14px; line-height: 1.8; }
  .concepts,.task-cards { grid-template-columns: 1fr; gap: 20px; }
  th,td { padding: 13px 12px; font-size: 12px; }
  tbody th { width: 34%; }
  footer { flex-wrap: wrap; padding: 23px 18px; }
}
@media(max-width:380px) { .site-header { flex-wrap: wrap; justify-content: center; gap: 10px; } nav { justify-content: center; width: 100%; } }
@media(prefers-reduced-motion:reduce) { html { scroll-behavior: auto; } }
.results { margin-top: 32px; }
.results h3 { margin-bottom: 6px; font-size: 22px; text-align: center; }
.results-scope { margin: 0 0 17px; color: var(--muted); font-size: 12px; text-align: center; }
.results-summary { margin: 0 0 18px; font-size: 14px; text-align: center; }
.results-summary strong { color: var(--green); }
.results-wrapper { overflow-x: auto; }
.results-wrapper:focus-visible { outline: 3px solid #438b6f; outline-offset: 3px; }
.results-table { min-width: 640px; font-size: 13px; }
.results-table th, .results-table td { padding: 13px 16px; white-space: nowrap; }
.results-table tbody th { width: auto; font-weight: 500; }
.results-table td, .results-table thead th:not(:first-child) { text-align: center; }
.outcome { font-size: 12px; font-weight: 600; }
.success { color: var(--green); }
.incomplete { color: var(--muted); }
.results-note { margin: 12px 0 0; font-size: 12px; color: var(--muted); line-height: 1.7; }
@media(max-width:650px) { .results h3 { font-size: 20px; } .results-scope { font-size: 11px; } .results-summary { font-size: 13px; } }

.result-figure { margin-top: 35px; }
.result-figure h3 { margin-bottom: 17px; }

/* Shared visual theme for research and guide pages. */
body{background:#f8f9f4;color:#233d31;-webkit-font-smoothing:antialiased}:root{--ink:#233d31;--muted:#65756b;--line:#dde5dc;--soft:#eef2e9}.new-brand-icon{width:28px;height:28px}.site-header{padding-top:24px;padding-bottom:24px}.hero{padding-top:62px;padding-bottom:42px}.project-name{font-size:50px;letter-spacing:-2px}.paper-title{font-weight:550}.resource-pill{border-radius:12px;background:#fff8}.play-link{background:var(--green)}.wide-figure>a{border-radius:14px;padding:14px;box-shadow:0 4px 22px #203c2d04}.table-wrapper{background:#fff;border-radius:14px}thead{background:#eef2e9}.section{padding-top:60px;padding-bottom:60px}.overview{padding-top:0}.results h3{font-weight:550}.results-table tbody tr:hover{background:#f6f8f3}h2{font-weight:600}.hero-actions{gap:12px}footer .brand{font-weight:600}@media(max-width:650px){.hero{padding-top:35px}.project-name{font-size:39px}.section{padding-top:38px;padding-bottom:38px}.overview{padding-top:0}.wide-figure>a{padding:6px}}

/* Navigation: predictable anchors and generous pointer targets. */
.site-header { position: sticky; top: 0; z-index: 20; background: #f8f9f4; padding-top: 14px; padding-bottom: 14px; }
.site-header .brand { min-height: 44px; padding: 4px 0; flex-shrink: 0; }
.new-brand-icon { display: block; width: 28px; height: 28px; flex-shrink: 0; }
.site-header nav { gap: 6px; }
.site-header nav a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 14px; border-radius: 9px; transition: background .15s, color .15s; }
.site-header nav a:hover { background: #eaf0e5; color: var(--green); text-decoration: none; }
.site-header nav a[aria-current="location"] { background: #e6eee1; color: var(--green); font-weight: 600; }
#overview, #tasks, #evaluation { scroll-margin-top: 14px; }
@media(max-width:650px) {
  .site-header { padding: 10px 18px; gap: 8px; flex-wrap: wrap; }
  .site-header .brand { font-size: 15px; }
  .site-header nav { gap: 2px; }
  .site-header nav a { padding: 0 9px; font-size: 12px; }
}
@media(max-width:460px) {
  .site-header { justify-content: center; }
  .site-header nav { width: 100%; justify-content: center; }
  html { scroll-padding-top: 120px; }
}
@media(prefers-reduced-motion:reduce) { .site-header nav a { transition: none; } }