.upi-page {
  --space-section: 90px;
  --space-heading: 40px;
  --space-grid: 24px;
  --space-card: 28px;
  --space-inner: 12px;
  --space-meta: 32px;
  --upi-container: 1032px;
  --upi-border: #e4e4e4;
  --upi-accent: var(--blue);
  --upi-accent-tint: #eaf1fb;
  --upi-ink: #1e1e1e;
  --upi-body: #555;
  --upi-display: 'Product Sans', sans-serif;
  --upi-text: 'Inter', sans-serif;
  --upi-h1-size: 48px;
  --upi-h1-line: 58px;
  --upi-h2-size: 36px;
  --upi-h2-line: 44px;
  --upi-h3-size: 24px;
  --upi-h3-line: 29px;
  --upi-body-size: 16px;
  --upi-body-line: 19px;
  --upi-small-size: 14px;
  --upi-small-line: 19px;
  color: var(--upi-ink);
}
.upi-page .upi-main { max-width: var(--upi-container); }
.upi-page .synergy-header .recruiter-btn { border-color: var(--upi-ink); }
.upi-page .synergy-header .recruiter-btn:hover { background: var(--upi-ink); color: #fff; }
.upi-page .synergy-side-nav .side-nav-back { color: var(--upi-ink); }
.upi-page .synergy-side-nav a[aria-current="location"] { color: var(--upi-accent); }
.upi-page .site-footer .star .g,.upi-page .site-footer .star.ghost .g,.upi-page .site-footer .launch .q::before,.upi-page .site-footer .comet .head { text-shadow: none; }
.upi-page .site-footer .star.near .g,.upi-page .site-footer .wand svg { filter: none; }
.upi-page .site-footer .star.planted .g { animation: none; }
.upi-page .site-footer .shoot,.upi-page .site-footer .comet .tail { background: none; -webkit-background-clip: initial; background-clip: initial; color: #fff; -webkit-text-fill-color: #fff; }
.upi-page .site-footer .launch { background: #171717; -webkit-backdrop-filter: none; backdrop-filter: none; box-shadow: none; }
.upi-page .upi-hero { margin-bottom: var(--space-section); }
.upi-page .upi-hero h1 { font: 400 var(--upi-h1-size)/var(--upi-h1-line) var(--upi-display); }
.upi-page .upi-breadcrumb { color: var(--upi-accent); }
.upi-page .upi-lede { max-width: 65ch; margin-top: var(--space-inner); color: var(--upi-body); }
.upi-page .page-section { margin: 0 0 var(--space-section); }
.upi-page .upi-section { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); column-gap: var(--space-grid); min-width: 0; }
.upi-page .upi-section > .eyebrow { grid-column: 1/-1; color: var(--upi-accent); }
.upi-page .upi-section > h2 { grid-column: 1/span 9; max-width: none; margin: 0 0 var(--space-heading); color: var(--upi-ink); font: 400 var(--upi-h2-size)/var(--upi-h2-line) var(--upi-display); }
.upi-page .eyebrow { font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); letter-spacing: .04em; }
.upi-page .body-copy { max-width: 65ch; color: var(--upi-body); font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); }
.upi-page .synergy-side-nav.is-footer-visible { visibility: hidden; opacity: 0; pointer-events: none; }

/* The shared 12-column tracks prevent metadata cells from collapsing. */
.upi-page .project-meta.upi-meta { display: grid; width: 100%; grid-template-columns: repeat(4,minmax(0,1fr)); justify-content: stretch; column-gap: 56px; row-gap: 8px; align-items: start; margin-top: var(--space-heading); }
.upi-page .upi-meta > div { min-width: 0; }
.upi-page .upi-meta .meta-label { display: block; margin: 0 0 var(--space-inner); color: var(--upi-accent); font: 400 12px/16px var(--upi-text); letter-spacing: .08em; text-transform: uppercase; }
.upi-page .upi-meta .meta-value { display: block; margin: 0; color: var(--upi-ink); font: 400 18px/1.5 var(--upi-text); overflow-wrap: normal; word-break: normal; }

.upi-page .section-row,.upi-page .stat-row,.upi-page .method-stepper,.upi-page .lead-stat,.upi-page .theme-grid,.upi-page .implication-grid,.upi-page .learning-grid { grid-column: 1/-1; min-width: 0; }
.upi-page .problem-summary { grid-column: 1/span 9; margin: 0 0 var(--space-grid); }
.upi-page .section-row { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); align-items: start; gap: var(--space-grid); }
.upi-page .section-copy { grid-column: span 5; min-width: 0; max-width: 38ch; }
.upi-page .section-copy > .body-copy { margin: 0; }
.upi-page .interactive-column { grid-column: span 7; min-width: 0; }
.upi-page .state-card { box-sizing: border-box; display: flex; flex-direction: column; min-height: 250px; padding: var(--space-inner); border: 1px solid var(--upi-border); border-radius: 12px; background: #f5f5f5; }
.upi-page .problem-grid { column-gap: 48px; }
.upi-page .toggle-panel { min-height: 0; padding: var(--space-card); background: #fff; }
.upi-page .toggle-panel .segmented-control { background: #f1f3f8; }
.upi-page .toggle-panel .state-panel { flex: 0 0 auto; padding: var(--space-grid) 0 0; }
.upi-page .toggle-panel .state-panel p { margin-top: var(--space-inner); }
.upi-page .segmented-control { display: flex; flex: 0 0 auto; width: 100%; padding: 4px; border: 1px solid var(--upi-border); border-radius: 999px; background: #fff; }
.upi-page .segmented-control button { flex: 1 1 0; min-width: 0; min-height: 40px; padding: 0 var(--space-inner); border: 0; border-radius: 999px; background: transparent; color: var(--upi-ink); font: 400 16px/19px var(--upi-text); cursor: pointer; }
.upi-page .segmented-control button[aria-selected="true"] { background: var(--upi-accent); color: #fff; }
.upi-page .segmented-control button:focus-visible,.upi-page .step-tab:focus-visible,.upi-page .stepper-controls button:focus-visible,.upi-page .topic-chip:focus-visible,.upi-page .stat-themes:focus-visible,.upi-page .paper-cta:focus-visible { outline: 2px solid var(--upi-accent); outline-offset: 3px; }
.upi-page .state-panel { position: relative; display: none; flex: 1; min-height: 0; padding: var(--space-card) var(--space-inner) var(--space-inner); opacity: 0; transition: opacity 180ms ease; }
.upi-page .state-panel.is-active { display: block; opacity: 1; }
.upi-page .state-panel p { max-width: 42ch; margin: var(--space-inner) 0 0; color: var(--upi-ink); font: 400 var(--upi-h3-size)/var(--upi-h3-line) var(--upi-display); }
.upi-page .state-kicker,.upi-page .chips-label { display: block; color: var(--upi-accent); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); letter-spacing: .04em; }
.upi-page .topic-chips { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-inner); margin-top: var(--space-grid); }
.upi-page .chips-label { flex-basis: 100%; }
.upi-page .topic-chip { padding: calc(var(--space-inner)/2) var(--space-inner); border: 1px solid var(--upi-border); border-radius: 999px; color: var(--upi-ink); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); text-decoration: none; }
.upi-page .topic-chip:hover { border-color: var(--upi-accent); }
.upi-page .pull-quote { margin: var(--space-grid) 0 0; padding: 0 0 0 var(--space-inner); border: 0; border-left: 3px solid var(--upi-accent); border-radius: 0; background: none; color: #111; font: 400 24px/1.35 var(--upi-display); }
.upi-page .pull-quote cite { display: block; margin-top: var(--space-inner); color: var(--upi-body); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); font-style: normal; }

.upi-page .subsection-heading { grid-column: 1/-1; min-width: 0; margin: 0 0 var(--space-grid); }
.upi-page .subsection-heading h3 { margin: 0 0 var(--space-inner); color: var(--upi-ink); font: 600 18px/24px var(--upi-text); }
.upi-page .subsection-heading p { margin: 0; color: var(--upi-body); font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); }
.upi-page .method-subheading { margin-top: var(--space-section); }
.upi-page .stat-row { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); grid-template-rows: repeat(2,minmax(190px,auto)); gap: var(--space-grid); margin: 0; }
.upi-page .stat-item { box-sizing: border-box; display: flex; flex-direction: column; align-items: flex-start; min-width: 0; padding: var(--space-card); border: 1px solid var(--upi-border); border-radius: 12px; background: #fff; color: var(--upi-ink); text-decoration: none; }
.upi-page .stat-interviews { grid-column: 1/span 6; grid-row: 1; border-color: var(--upi-accent); background: var(--upi-accent); color: #fff; }
.upi-page .stat-ages { grid-column: 7/span 3; grid-row: 1; background: var(--upi-accent-tint); }
.upi-page .stat-cities { grid-column: 10/span 3; grid-row: 1; }
.upi-page .stat-researchers { grid-column: 1/span 6; grid-row: 2; }
.upi-page .stat-themes { grid-column: 7/span 6; grid-row: 2; }
.upi-page .stat-label { margin: 0 0 var(--space-inner); color: var(--upi-accent); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); letter-spacing: .08em; text-transform: uppercase; }
.upi-page .stat-interviews .stat-label { color: #fff; }
.upi-page .stat-item strong { display: block; margin: 0 0 var(--space-inner); color: var(--upi-accent); font: 400 48px/57px -apple-system,BlinkMacSystemFont,'SF Pro Display',sans-serif; }
.upi-page .stat-interviews strong,.upi-page .stat-interviews > span:not(.source-chip):not(.stat-label) { color: #fff; }
.upi-page .stat-item > span:not(.source-chip):not(.stat-label) { color: var(--upi-body); font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); }
.upi-page .stat-interviews > span:not(.source-chip):not(.stat-label) { margin: 8px 0 20px; color: rgba(255,255,255,.85); font-size: 16px; }
.upi-page .participant-split { display: flex; width: 100%; height: var(--space-inner); margin-top: auto; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.28); }
.upi-page .pilot-part { width: 20%; background: #fff; }
.upi-page .final-part { width: 80%; background: rgba(255,255,255,.48); }
.upi-page .split-labels { display: flex; justify-content: space-between; width: 100%; margin-top: var(--space-inner); color: #fff; font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .source-chip { display: inline-flex; align-self: flex-start; margin-top: auto; padding: calc(var(--space-inner)/2) var(--space-inner); border-radius: 999px; background: #f5f5f5; color: var(--upi-body); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .stat-interviews .source-chip { margin-top: var(--space-inner); background: rgba(255,255,255,.18); color: #fff; }
.upi-page .stat-item:not(.stat-interviews) .source-chip { margin-top: auto; }
.upi-page .stat-themes:hover { border-color: var(--upi-accent); }

.upi-page .method-stepper { padding: var(--space-card); border: 1px solid var(--upi-border); border-radius: 12px; background: #fff; }
.upi-page .stepper-heading { display: flex; justify-content: flex-end; margin-bottom: var(--space-inner); }
.upi-page .step-counter { color: var(--upi-accent); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .step-tabs { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); align-items: end; gap: var(--space-inner); }
.upi-page .step-tab { box-sizing: border-box; display: flex; align-items: center; gap: var(--space-inner); min-width: 0; min-height: 72px; height: 72px; padding: var(--space-inner); border: 1px solid var(--upi-border); border-bottom: 3px solid transparent; border-radius: 12px 12px 0 0; background: #eef1f8; color: #6b7280; text-align: left; font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); cursor: pointer; }
.upi-page .step-tab span { flex: 0 0 auto; color: #9aa5c4; font: 400 18px/22px var(--upi-text); }
.upi-page .step-tab.is-active,.upi-page .step-tab[aria-selected="true"],.upi-page .step-tab.active { border-color: var(--upi-accent); border-bottom-color: var(--upi-accent); background: var(--upi-accent); color: #fff; font-weight: 600; }
.upi-page .step-tab.is-active span,.upi-page .step-tab[aria-selected="true"] span,.upi-page .step-tab.active span { color: #fff; }
.upi-page .step-panel-wrap { position: relative; box-sizing: border-box; height: 190px; padding: var(--space-card); border: 1px solid var(--upi-border); border-top: 3px solid var(--upi-accent); border-radius: 0 12px 12px 12px; background: #fff; }
.upi-page .step-panel { position: absolute; inset: var(--space-card); display: none; grid-template-rows: 1fr auto; gap: var(--space-inner); visibility: hidden; opacity: 0; transition: opacity 180ms ease; }
.upi-page .step-panel.is-active { display: grid; visibility: visible; opacity: 1; }
.upi-page .step-action > span { color: var(--upi-accent); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .step-action p { max-width: 65ch; margin: var(--space-inner) 0 0; color: var(--upi-ink); font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); }
.upi-page .step-output { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-inner); }
.upi-page .step-output > span { padding: calc(var(--space-inner)/2) var(--space-inner); border: 1px solid var(--upi-border); border-radius: 999px; background: #fff; color: var(--upi-accent); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .step-output > strong { color: var(--upi-ink); font: 600 18px/24px var(--upi-text); }
.upi-page .stepper-controls { display: flex; justify-content: flex-end; gap: var(--space-inner); margin-top: var(--space-inner); }
.upi-page .stepper-controls button { min-height: 40px; padding: calc(var(--space-inner)/2) var(--space-inner); border: 1px solid var(--upi-border); border-radius: 999px; background: #fff; color: var(--upi-ink); font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); cursor: pointer; }
.upi-page .stepper-controls button:disabled { color: var(--upi-body); cursor: default; }
.upi-page .stepper-controls button:hover { border-color: var(--upi-accent); }

.upi-page .lead-stat { display: flex; flex-direction: column; gap: var(--space-inner); margin: 0 0 var(--space-grid); padding: var(--space-card); border-radius: 12px; background: var(--upi-accent); color: #fff; font: 400 var(--upi-h2-size)/var(--upi-h2-line) var(--upi-display); }
.upi-page .lead-stat strong { color: inherit; font: inherit; }
.upi-page .lead-stat span { color: #fff; font: 400 var(--upi-small-size)/var(--upi-small-line) var(--upi-text); }
.upi-page .theme-grid { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); gap: var(--space-grid); margin: 0; padding: 0; list-style: none; scroll-margin-top: 120px; }
.upi-page .theme-grid li,.upi-page .implication-grid article,.upi-page .learning-grid article { box-sizing: border-box; min-width: 0; padding: var(--space-card); border: 1px solid var(--upi-border); border-radius: 12px; background: #fff; }
.upi-page .theme-grid li { grid-column: span 4; }
.upi-page .theme-number,.upi-page .learning-grid article > span { display: block; margin: 0 0 var(--space-inner); color: var(--upi-accent); font: 400 18px/22px var(--upi-text); }
.upi-page .theme-grid p,.upi-page .implication-grid p,.upi-page .learning-grid p { margin: 0; color: var(--upi-body); font: 400 var(--upi-body-size)/var(--upi-body-line) var(--upi-text); }
.upi-page .theme-grid li[id] { scroll-margin-top: 120px; }
.upi-page .implication-grid,.upi-page .learning-grid { display: grid; grid-template-columns: repeat(12,minmax(0,1fr)); gap: var(--space-grid); }
.upi-page .implication-grid article { grid-column: span 6; }
.upi-page .learning-grid article { grid-column: span 4; }
.upi-page .method-card h3,.upi-page .implication-grid h3,.upi-page .learning-grid h3 { margin: 0 0 var(--space-inner); color: var(--upi-ink); font: 600 18px/24px var(--upi-text); }
.upi-page .paper-cta-wrap { display: flex; justify-content: flex-start; margin: var(--space-section) 0; }
.upi-page .paper-cta { display: inline-flex; align-items: center; min-height: 46px; padding: 0 var(--space-card); border: 0; border-radius: 4px; background: var(--upi-accent); color: #fff; font: 400 16px/19px var(--upi-text); text-decoration: none; }
.upi-page .paper-cta:hover { text-decoration: underline; text-underline-offset: 4px; }
.upi-page #learnings { margin-bottom: 0; }

@media (max-width: 900px) {
  .upi-page .project-meta.upi-meta { grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: var(--space-grid); row-gap: 8px; }
}
@media (max-width: 768px) {
  .upi-page { --space-section: 72px; }
  .upi-page .upi-main { width: calc(100% - 32px); max-width: none; padding: 24px 0 64px; }
  .upi-page .upi-hero h1 { margin-top: var(--space-inner); font-size: 38px; line-height: 46px; }
  .upi-page .upi-section > h2 { grid-column: 1/-1; font-size: 29px; line-height: 36px; }
  .upi-page .problem-summary { grid-column: 1/-1; }
  .upi-page .body-copy { font-size: 16px; line-height: 22px; }
  .upi-page .project-meta.upi-meta { grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: var(--space-grid); row-gap: var(--space-grid); margin-top: var(--space-grid); }
  .upi-page .section-row { row-gap: var(--space-grid); }
  .upi-page .section-copy,.upi-page .interactive-column { grid-column: 1/-1; max-width: none; }
  .upi-page .state-card { min-height: 240px; }
  .upi-page .stat-row { grid-template-rows: repeat(2,minmax(190px,auto)); }
  .upi-page .step-tabs { gap: var(--space-inner); }
  .upi-page .step-tab { min-height: 72px; height: 72px; }
  .upi-page .step-panel-wrap { height: 210px; }
  .upi-page .theme-grid li { grid-column: span 6; }
  .upi-page .implication-grid article { grid-column: span 6; }
}
@media (max-width: 480px) {
  .upi-page .stat-row { grid-template-columns: repeat(6,minmax(0,1fr)); grid-template-rows: auto; }
  .upi-page .stat-item { grid-column: 1/-1; grid-row: auto; min-height: 190px; padding: var(--space-card); }
  .upi-page .stat-item strong { font-size: 40px; line-height: 48px; }
  .upi-page .step-tabs { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .upi-page .step-tab { padding: var(--space-inner); }
  .upi-page .step-panel-wrap { height: 230px; }
  .upi-page .step-panel { inset: var(--space-inner); }
  .upi-page .theme-grid li,.upi-page .implication-grid article,.upi-page .learning-grid article { grid-column: 1/-1; }
  .upi-page .lead-stat { font-size: 29px; line-height: 36px; }
}
@media (prefers-reduced-motion: reduce) {
  .upi-page .state-panel,.upi-page .step-panel { transition: none; }
  .upi-page { scroll-behavior: auto; }
}