:root {
  --ink: #192022;
  --muted: #667071;
  --line: #dfe3e1;
  --soft: #f5f7f5;
  --accent: #1c5b55;
  --serif: "Source Serif 4", Georgia, serif;
  --sans: "DM Sans", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font: 400 16px/1.65 var(--sans); }
a { color: var(--accent); text-decoration-color: #9dbbb6; text-underline-offset: 0.18em; }
a:hover { color: #103d39; }

.site-header {
  width: min(1120px, calc(100% - 48px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark { color: var(--ink); font: 600 20px/1 var(--serif); letter-spacing: .04em; text-decoration: none; }
nav { display: flex; align-items: center; gap: 22px; font-size: 14px; }
nav a { color: var(--ink); text-decoration: none; }
nav a:hover { color: var(--accent); }
nav .nav-cv { padding: 5px 12px; border: 1px solid #aeb9b5; border-radius: 2px; }

main { width: min(1040px, calc(100% - 48px)); margin: 0 auto; }
.hero { padding: clamp(84px, 12vw, 148px) 0 clamp(82px, 10vw, 126px); }
.hero-identity { display: grid; grid-template-columns: 1fr 156px; gap: 48px; align-items: end; max-width: 760px; }
.eyebrow, .card-kicker { margin: 0 0 9px; color: var(--accent); font-size: 11px; font-weight: 600; letter-spacing: .13em; text-transform: uppercase; }
h1, h2, h3, h4 { margin: 0; line-height: 1.17; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; }
h1 { font-size: clamp(46px, 7vw, 76px); letter-spacing: -.038em; }
h2 { font-size: clamp(33px, 4.2vw, 48px); letter-spacing: -.027em; }
h3 { font-size: 26px; letter-spacing: -.018em; }
h4 { font-size: 15px; font-weight: 600; }
.affiliation { margin: 13px 0 0; color: var(--muted); font-size: 16px; line-height: 1.5; }
.advisor { margin: 0; color: var(--muted); font-size: 14px; }
.portrait { width: 156px; height: 156px; object-fit: cover; border-radius: 2px; filter: saturate(.88); }
.hero-copy { width: min(775px, 100%); margin-top: 62px; }
.hero-copy p { margin: 0 0 19px; font-size: 18px; }
.hero-copy .research-statement { font: 500 clamp(23px, 3vw, 32px)/1.33 var(--serif); letter-spacing: -.018em; }
.contact-links { display: flex; flex-wrap: wrap; gap: 8px 19px; padding-top: 10px; font-size: 15px !important; }

.section { padding: 92px 0; border-top: 1px solid var(--line); }
.section-heading { margin-bottom: 42px; }
.section-heading h2 { max-width: 700px; }
.featured-research { display: grid; gap: 30px; }
.research-card { padding: 35px; background: var(--soft); border: 1px solid #e7ebe8; }
.research-card-heading { padding-bottom: 27px; border-bottom: 1px solid #dbe1de; }
.research-card-heading .card-kicker { margin: 0; }
.research-card-heading h3 { margin-top: 9px; }
.research-card-heading h3 a { color: inherit; text-decoration: none; }
.research-card-heading h3 a:hover { color: var(--accent); text-decoration: underline; text-decoration-color: #9dbbb6; }
.research-card-details { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(290px, .95fr); gap: 42px; align-items: center; padding-top: 28px; }
.research-card-copy p:not(.card-kicker) { margin: 15px 0 0; }
.research-card > .project-links { margin: 26px 0 0; }
.project-links { display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; font-weight: 600; }
.research-visual { margin: 0; }
.research-visual img { display: block; width: 100%; max-height: 270px; object-fit: contain; background: #fff; }
figcaption { margin-top: 8px; color: var(--muted); font-size: 12px; }
.earlier-research { display: grid; grid-template-columns: .9fr 1fr 1fr 1fr; gap: 25px; margin-top: 52px; padding-top: 25px; border-top: 1px solid var(--line); }
.earlier-research .eyebrow { margin-top: 4px; }
.earlier-research h3 { font-size: 18px; }
.earlier-research p { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.55; }

.publication-list { margin: 0; padding: 0; list-style: none; counter-reset: publications; }
.publication-list li { position: relative; padding: 0 0 28px 34px; counter-increment: publications; }
.publication-list li::before { content: counter(publications, decimal-leading-zero); position: absolute; left: 0; top: 3px; color: var(--accent); font-size: 12px; font-weight: 600; }
.publication-list p { margin: 3px 0; font-size: 15px; }
.publication-title { font: 600 20px/1.32 var(--serif); }
.publication-title a { color: var(--ink); text-decoration-color: #b7c9c5; }
.publication-title a:hover { color: var(--accent); }
.venue, .publication-note { color: var(--muted); }
.citation-count { white-space: nowrap; }
.publication-note { margin: 3px 0 0 34px; font-size: 12px; }

.update-list { margin: 0; padding: 0; list-style: none; max-width: 770px; }
.update-list li { display: grid; grid-template-columns: 100px 1fr; gap: 20px; padding: 5px 0; }
.update-list time, .update-list .milestone-date { color: var(--muted); font-size: 13px; font-weight: 600; }

.background-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; }
.subheading { margin-bottom: 22px; font-size: 24px; }
.compact-entry { display: grid; grid-template-columns: 50px 1fr; align-items: center; gap: 15px; min-height: 72px; padding: 12px 0; border-top: 1px solid var(--line); }
.compact-entry:last-child { border-bottom: 1px solid var(--line); }
.compact-entry p { margin: 3px 0 0; color: var(--muted); font-size: 13px; line-height: 1.45; }
.company-logo, .school-logo { display: block; width: 42px; max-height: 42px; object-fit: contain; }
.company-logo.abb { width: 37px; }.company-logo.dsme { width: 44px; }.school-logo { width: 43px; max-height: 43px; }
.outreach-grid { display: grid; gap: 40px; }
.outreach-entry { min-width: 0; display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: 32px; align-items: start; }
.outreach-cover img { display: block; width: 100%; height: auto; border: 1px solid var(--line); }
.outreach-copy { min-width: 0; }
.outreach-entry h3 { font-size: 25px; }
.outreach-entry .outreach-role { margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.outreach-copy > p { margin: 18px 0 0; }
.outreach-entry .outreach-links { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: auto; padding-top: 22px; font-size: 14px; }
.cv-callout { margin: 0 0 90px; padding: 28px 32px; background: var(--soft); border-left: 3px solid var(--accent); }
.cv-callout p { margin: 0; font: 500 19px/1.45 var(--serif); }
footer { width: min(1040px, calc(100% - 48px)); margin: 0 auto; padding: 20px 0 38px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
footer p { margin: 0; }

@media (max-width: 760px) {
  .site-header, main, footer { width: min(100% - 32px, 1040px); }
  .site-header { min-height: 64px; }
  nav { gap: 13px; font-size: 12px; }

  .hero { padding: 68px 0 76px; }
  .hero-identity { grid-template-columns: 1fr 112px; gap: 20px; }
  .portrait { width: 112px; height: 112px; }
  .hero-copy { margin-top: 45px; }
  .hero-copy p { font-size: 16px; }
  .section { padding: 64px 0; }
  .section-heading { margin-bottom: 30px; }
  .research-card { padding: 25px; }
  .research-card-details { grid-template-columns: 1fr; gap: 16px; }
  .research-card-heading { padding-bottom: 22px; }
  .research-card-details { padding-top: 22px; }
  .research-card h3 { font-size: 24px; }
  .earlier-research { grid-template-columns: 1fr; gap: 22px; }
  .background-grid { grid-template-columns: 1fr; gap: 48px; }
  .outreach-grid { grid-template-columns: 1fr; gap: 40px; }
  .outreach-entry { grid-template-columns: 90px minmax(0, 1fr); gap: 20px; }
  .update-list li { grid-template-columns: 86px 1fr; gap: 13px; }
  .cv-callout { margin-bottom: 65px; padding: 24px; }
}

@media (max-width: 430px) {
  .site-header { align-items: center; }
  nav { gap: 10px; }

  .hero-identity { grid-template-columns: 1fr 90px; }
  .portrait { width: 90px; height: 90px; }
  .advisor { font-size: 12px; }
  .outreach-entry { grid-template-columns: 1fr; gap: 20px; }
  .outreach-cover { width: 100px; }
}

.research-card-copy .research-scope { font-size: 14px; color: var(--muted); }
.research-metric { font-family: var(--serif); font-size: 17px; overflow-wrap: anywhere; }
.compact-entry:has(.industry-summary) { align-items: start; }
.compact-entry .industry-summary, .compact-entry .industry-details { font-size: 14px; line-height: 1.65; margin-top: 12px; color: var(--ink); }
.industry-details { padding-left: 18px; margin-bottom: 0; }
.industry-details li + li { margin-top: 8px; }

/* Shared header on Home, Personal and CV. */
.site-header { gap: 24px; font-family: var(--sans); }
.site-header nav { flex-wrap: wrap; justify-content: flex-end; }
.site-header nav a, .site-header .wordmark { color: var(--ink); text-decoration: none; }
.site-header nav a:hover { color: var(--accent); text-decoration: none; }
.site-header nav a[aria-current="page"] { color: var(--accent); font-weight: 600; }
@media (max-width: 720px) {
  .site-header { padding-block: 16px; align-items: flex-start; gap: 20px; }
  .site-header nav { gap: 10px 14px; }
}