:root {
  --rutgers: #a6192e;
  --rutgers-dark: #7e1022;
  --ink: #222326;
  --muted: #64666b;
  --blue: #526d82;
  --blue-dark: #2d465b;
  --cream: #f6f3ee;
  --paper: #fff;
  --gray: #ececed;
  --line: #d7d7d8;
  --serif: "Lora", Georgia, serif;
  --sans: "Libre Franklin", "Helvetica Neue", Arial, sans-serif;
  --shadow: 0 18px 50px rgb(21 26 31 / 14%);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid #ffc857;
  outline-offset: 4px;
}

.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;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.7rem 1rem;
  color: #fff;
  background: var(--ink);
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.shell {
  width: min(100% - 3rem, 76rem);
  margin-inline: auto;
}

.narrow {
  width: min(100%, 61rem);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  color: #fff;
  background: rgb(166 25 46 / 97%);
  border-bottom: 1px solid rgb(255 255 255 / 18%);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4.7rem;
}

.wordmark {
  flex: 0 0 auto;
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.025em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 1.8vw, 1.55rem);
  margin-left: 2rem;
  font-size: 0.84rem;
  font-weight: 600;
}

.primary-nav a {
  position: relative;
  padding: 0.55rem 0;
}

.primary-nav a:not(.nav-cv)::after {
  position: absolute;
  right: 0;
  bottom: 0.25rem;
  left: 0;
  height: 2px;
  content: "";
  background: #fff;
  transform: scaleX(0);
  transition: transform 160ms ease;
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-cv {
  padding: 0.45rem 0.78rem !important;
  color: var(--rutgers);
  background: #fff;
  border-radius: 0.15rem;
}

.nav-cv:hover {
  background: var(--cream);
}

.nav-toggle {
  display: none;
  width: 2.8rem;
  height: 2.8rem;
  padding: 0.65rem;
  color: #fff;
  background: transparent;
  border: 1px solid rgb(255 255 255 / 45%);
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 0.28rem 0;
  background: currentColor;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.eyebrow.red {
  color: var(--rutgers);
}

.eyebrow.light {
  color: #fff;
}

.home-hero {
  color: #fff;
  background:
    linear-gradient(90deg, rgb(45 70 91 / 97%), rgb(82 109 130 / 88%)),
    url("assets/hero-pattern.jpg") center / cover;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(17rem, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: center;
  min-height: 36rem;
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.portrait-wrap {
  position: relative;
  justify-self: end;
  width: min(100%, 23rem);
  padding: 0.65rem;
  background: rgb(255 255 255 / 12%);
  border: 1px solid rgb(255 255 255 / 32%);
  box-shadow: var(--shadow);
}

.portrait-wrap::after {
  position: absolute;
  right: -1.2rem;
  bottom: -1.2rem;
  z-index: -1;
  width: 52%;
  height: 44%;
  content: "";
  background: var(--rutgers);
}

.portrait-wrap img {
  width: 100%;
  aspect-ratio: 427 / 473;
  object-fit: cover;
}

.hero-copy {
  padding-right: clamp(0rem, 4vw, 4rem);
}

.hero-copy h1,
.page-banner h1,
.section-intro h2,
.home-highlight h2,
.quick-contact h2,
.content-section h2,
.contact-main h2,
.profile-section h2,
.teaching-skills h2,
.profile-cta h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.hero-copy h1 {
  font-size: clamp(3.5rem, 7vw, 6.8rem);
  line-height: 0.95;
}

.hero-role {
  margin: 1.3rem 0 0;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.2;
}

.hero-school {
  margin: 0.45rem 0 0;
  color: #ffced5;
  font-size: 1.15rem;
  font-weight: 700;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 2rem;
}

.hero-links a,
.text-link {
  font-weight: 700;
  border-bottom: 2px solid currentColor;
}

.hero-links a:hover,
.text-link:hover {
  opacity: 0.76;
}

.welcome-band {
  padding-block: clamp(3.5rem, 7vw, 6.2rem);
  background: var(--gray);
}

.welcome-band p {
  margin: 0;
  color: #4d4f54;
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
}

.welcome-band .welcome-lead {
  margin-bottom: 1.5rem;
  color: #3e4045;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.42;
}

.home-links,
.content-section,
.quick-contact {
  padding-block: clamp(4.7rem, 8vw, 7.5rem);
}

.section-intro {
  max-width: 52rem;
  margin-bottom: clamp(2.8rem, 5vw, 4.2rem);
}

.section-intro.centered {
  margin-inline: auto;
  text-align: center;
}

.section-intro h2,
.content-section > .section-intro h2 {
  font-size: clamp(2.4rem, 5vw, 4.2rem);
  line-height: 1.08;
}

.section-intro > p:last-child {
  max-width: 45rem;
  margin: 1.2rem 0 0;
  color: var(--muted);
  font-size: 1.1rem;
}

.section-intro.centered > p:last-child {
  margin-inline: auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 21rem;
  padding: clamp(1.7rem, 4vw, 2.8rem);
  overflow: hidden;
  color: #fff;
  background-position: center;
  background-size: cover;
  isolation: isolate;
}

.feature-card::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  background: linear-gradient(180deg, transparent 20%, rgb(15 20 25 / 84%));
  transition: background 180ms ease;
}

.feature-card::after {
  position: absolute;
  top: 1.3rem;
  right: 1.5rem;
  content: "↗";
  font-size: 1.6rem;
  transition: transform 180ms ease;
}

.feature-card:hover::before {
  background: linear-gradient(180deg, rgb(166 25 46 / 12%), rgb(87 14 27 / 91%));
}

.feature-card:hover::after {
  transform: translate(0.2rem, -0.2rem);
}

.feature-research {
  background-image: url("assets/research-library.jpg");
}

.feature-teaching {
  background-image: url("assets/teaching-banner.jpg");
}

.feature-data {
  background:
    linear-gradient(135deg, rgb(45 70 91 / 75%), rgb(166 25 46 / 70%)),
    url("assets/hero-pattern.jpg") center / cover;
}

.feature-cv {
  background:
    linear-gradient(135deg, rgb(85 85 88 / 88%), rgb(30 31 34 / 92%)),
    url("assets/hero-pattern.jpg") center / cover;
}

.feature-label {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 3.4rem);
  font-weight: 600;
  line-height: 1.05;
  text-decoration: underline;
  text-decoration-color: #ffabb8;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

.feature-description {
  margin-top: 0.9rem;
  font-size: 0.96rem;
}

.home-highlight,
.service-band,
.data-section,
.teaching-skills,
.awards-section,
.profile-section,
.profile-cta {
  color: #fff;
  background: var(--blue-dark);
}

.highlight-grid,
.two-column-detail,
.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: start;
  padding-block: clamp(4.7rem, 8vw, 7.5rem);
}

.home-highlight h2,
.service-band h2,
.teaching-skills h2,
.profile-cta h2 {
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  line-height: 1.1;
}

.highlight-copy p {
  margin: 0 0 1.8rem;
  color: #e0e7eb;
  font-size: 1.12rem;
}

.light-link {
  color: #fff;
}

.quick-contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: end;
}

.quick-contact h2 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  line-height: 1.1;
}

.quick-contact p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.email-link,
.contact-primary {
  color: var(--rutgers);
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.5vw, 2rem);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.page-banner {
  display: flex;
  align-items: center;
  min-height: clamp(20rem, 41vw, 30rem);
  color: #fff;
  background-color: var(--rutgers-dark);
  background-position: center;
  background-size: cover;
  isolation: isolate;
}

.page-banner .shell {
  position: relative;
  z-index: 1;
}

.page-banner h1 {
  font-size: clamp(4rem, 9vw, 8rem);
  line-height: 0.92;
}

.banner-research {
  position: relative;
  background-image: url("assets/research-library.jpg");
}

.banner-research::before,
.banner-teaching::before,
.banner-presentations::before {
  position: absolute;
  inset: 0;
  content: "";
  background: rgb(55 12 20 / 63%);
}

.banner-teaching {
  position: relative;
  background-image: url("assets/teaching-banner.jpg");
}

.banner-bio,
.banner-contact {
  background:
    linear-gradient(90deg, rgb(125 16 34 / 96%), rgb(166 25 46 / 82%)),
    url("assets/hero-pattern.jpg") center / cover;
}

.banner-presentations {
  position: relative;
  background:
    linear-gradient(rgb(45 70 91 / 28%), rgb(45 70 91 / 28%)),
    url("assets/teaching-banner.jpg") center 38% / cover;
}

.bio-layout {
  display: grid;
  grid-template-columns: minmax(16rem, 0.55fr) minmax(0, 1.15fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: start;
}

.bio-portrait {
  position: sticky;
  top: 7rem;
  align-self: start;
  width: 100%;
  max-width: 31rem;
}

.bio-portrait img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: center;
  background: var(--gray);
  border: 1px solid #dedee0;
  box-shadow: 1rem 1rem 0 var(--gray);
}

/* Mobile portrait layout */
@media (max-width: 820px) {
  .bio-portrait {
    position: static;
    width: min(100%, 31rem);
    margin-inline: auto;
  }
}

.prose {
  max-width: 52rem;
}

.prose p {
  margin: 0 0 1.35rem;
}

.prose .lead {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.35;
}

.compact-prose {
  color: #e3e8eb;
  font-size: 1.08rem;
}

.button-row,
.profile-button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button,
.profile-button-row a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  border: 2px solid var(--rutgers);
  transition: transform 160ms ease, background 160ms ease;
}

.button:hover,
.profile-button-row a:hover {
  transform: translateY(-2px);
}

.button-red {
  color: #fff;
  background: var(--rutgers);
}

.button-red:hover {
  background: var(--rutgers-dark);
}

.button-outline {
  color: var(--rutgers);
}

.button-outline:hover {
  background: #f8e9ec;
}

.muted-section {
  background: var(--gray);
}

.two-column-detail h2 {
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  line-height: 1.1;
}

.timeline {
  border-top: 1px solid #bfc0c2;
}

.timeline article {
  display: grid;
  grid-template-columns: 8rem 1fr;
  column-gap: 1.4rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid #bfc0c2;
}

.timeline-date {
  grid-row: span 2;
  margin: 0;
  color: var(--rutgers);
  font-weight: 700;
}

.timeline h3,
.info-card h3,
.data-card h3,
.presentation-list h3,
.award-grid h3,
.contact-card h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.2;
}

.timeline p:last-child {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.info-grid,
.data-grid,
.award-grid,
.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.info-card {
  min-height: 14rem;
  padding: 2rem;
  border: 1px solid var(--line);
  border-top: 5px solid var(--rutgers);
}

.info-card h3 {
  font-size: 1.55rem;
}

.card-meta,
.venue,
.award-year {
  margin: 0 0 0.7rem;
  color: var(--rutgers);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.info-card p:last-child {
  color: var(--muted);
}

.research-intro {
  padding-bottom: 2rem;
}

.research-groups {
  border-top: 1px solid var(--line);
}

.research-group {
  padding-block: clamp(3.5rem, 7vw, 6rem);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 6rem;
}

.research-group-heading {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.3rem;
}

.research-number {
  margin: 0;
  color: var(--rutgers);
  font-family: var(--serif);
  font-size: 2rem;
}

.research-group-heading h2 {
  color: var(--rutgers-dark);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  line-height: 1.08;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

.research-group-heading div > p {
  max-width: 47rem;
  margin: 1rem 0 0;
  color: var(--muted);
}

.accordion-list {
  margin-left: 6.5rem;
  border-top: 1px solid var(--line);
}

.accordion-list details {
  border-bottom: 1px solid var(--line);
}

.accordion-list summary {
  position: relative;
  padding: 1.25rem 3rem 1.25rem 0;
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.accordion-list summary::-webkit-details-marker {
  display: none;
}

.accordion-list summary::after {
  position: absolute;
  top: 50%;
  right: 0.4rem;
  color: var(--rutgers);
  content: "+";
  font-family: var(--sans);
  font-size: 1.5rem;
  transform: translateY(-50%);
}

.accordion-list details[open] summary::after {
  content: "−";
}

.details-body {
  max-width: 56rem;
  padding: 0 2rem 1.6rem 0;
  color: var(--muted);
}

.details-body h3 {
  margin: 0 0 0.7rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.4rem;
}

.details-body p {
  margin: 0;
}

.citation-list {
  padding-left: 1.25rem;
  margin: 0;
}

.citation-list li + li {
  margin-top: 0.8rem;
}

.data-section .section-intro > p:last-child,
.awards-section .section-intro > p:last-child,
.profile-section .section-intro > p:last-child {
  color: #dce4e9;
}

.data-grid {
  grid-template-columns: repeat(3, 1fr);
}

.data-card {
  min-height: 20rem;
  padding: 2rem;
  color: var(--ink);
  background: #fff;
}

.data-card h3 {
  font-size: 1.65rem;
}

.data-card > p:not(.card-meta) {
  color: var(--muted);
}

.data-card .tool-line {
  padding-top: 1.2rem;
  margin-top: 2rem;
  font-size: 0.84rem;
  font-weight: 600;
  border-top: 1px solid var(--line);
}

.data-note {
  margin: 2rem 0 0;
  color: #e1e8ec;
}

.data-note a {
  text-decoration: underline;
}

.profile-cta {
  background: var(--rutgers-dark);
}

.profile-button-row a {
  color: #fff;
  border-color: #fff;
}

.course-list {
  border-top: 1px solid var(--line);
}

.course {
  display: grid;
  grid-template-columns: minmax(10rem, 0.32fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line);
}

.course-meta span {
  color: var(--rutgers);
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 600;
}

.course-meta p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.course-copy h2 {
  color: var(--rutgers-dark);
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.15;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.35rem;
}

.course-copy p {
  max-width: 52rem;
  color: var(--muted);
}

.skill-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  padding: 0;
  margin: 0;
  list-style: none;
  border-top: 1px solid rgb(255 255 255 / 30%);
}

.skill-list li {
  padding: 1.1rem 0.75rem 1.1rem 0;
  border-bottom: 1px solid rgb(255 255 255 / 30%);
}

.teaching-contact {
  max-width: 70rem;
}

.teaching-contact h2 {
  font-size: clamp(2.3rem, 4vw, 3.8rem);
}

.teaching-contact p:last-child {
  max-width: 52rem;
  color: var(--muted);
  font-size: 1.08rem;
}

.teaching-contact a {
  color: var(--rutgers);
  text-decoration: underline;
}

.presentation-years {
  border-top: 1px solid var(--line);
}

.presentation-year {
  display: grid;
  grid-template-columns: 8rem minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 5rem);
  padding-block: clamp(3.5rem, 7vw, 5.5rem);
  border-bottom: 1px solid var(--line);
}

.presentation-year > h2 {
  color: var(--rutgers);
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

.presentation-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.presentation-list article {
  min-height: 12rem;
  padding: 1.6rem;
  background: var(--cream);
  border-left: 4px solid var(--blue);
}

.presentation-list article.award-presentation {
  border-color: var(--rutgers);
}

.presentation-list h3 {
  font-size: 1.2rem;
}

.presentation-list article > p:last-child:not(.venue) {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.award-grid article {
  min-height: 13rem;
  padding: 2rem;
  color: var(--ink);
  background: #fff;
}

.award-grid h3 {
  font-size: 1.45rem;
}

.award-grid article p:last-child {
  color: var(--muted);
}

.presentations-cta {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.presentations-cta h2 {
  font-size: clamp(2.2rem, 4vw, 3.7rem);
}

.contact-main {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.55fr);
  gap: clamp(3rem, 8vw, 7rem);
  align-items: start;
  padding-block: clamp(4.7rem, 8vw, 7.5rem);
}

.contact-intro h2 {
  max-width: 45rem;
  font-size: clamp(2.6rem, 5vw, 4.5rem);
  line-height: 1.08;
}

.contact-intro > p:not(.eyebrow) {
  max-width: 45rem;
  margin: 1.5rem 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.contact-primary {
  display: inline-block;
  margin-top: 1rem;
}

.contact-card {
  padding: 2.2rem;
  background: var(--gray);
  border-top: 5px solid var(--rutgers);
}

.contact-card h2 {
  font-size: 1.75rem;
}

.contact-card p {
  margin-bottom: 0;
}

.contact-card .contact-note {
  padding-top: 1rem;
  color: var(--muted);
  font-size: 0.88rem;
  border-top: 1px solid #c7c8ca;
}

.profile-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 10rem;
  padding: 1.8rem 3.5rem 1.8rem 1.8rem;
  color: var(--ink);
  background: #fff;
  transition: transform 160ms ease;
}

.profile-card:hover {
  transform: translateY(-3px);
}

.profile-card span {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
}

.profile-card small {
  margin-top: 0.45rem;
  color: var(--muted);
}

.profile-card b {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  color: var(--rutgers);
  font-size: 1.4rem;
}

.site-footer {
  color: #313236;
  background: #d9d9db;
  border-top: 1px solid #c7c7c9;
}

.footer-inner {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: space-between;
  min-height: 7rem;
  font-size: 0.82rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(1.2rem);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 980px) {
  .primary-nav { gap: 0.75rem; font-size: 0.78rem; }
  .hero-inner { grid-template-columns: minmax(15rem, 0.7fr) minmax(0, 1.3fr); gap: 3rem; }
  .data-grid { grid-template-columns: 1fr; }
  .data-card { min-height: auto; }
}

@media (max-width: 820px) {
  .site-header { backdrop-filter: none; }
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
    padding: 1rem 1.5rem 1.5rem;
    font-size: 1rem;
    background: var(--rutgers-dark);
    box-shadow: var(--shadow);
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 0.8rem 0; border-bottom: 1px solid rgb(255 255 255 / 18%); }
  .primary-nav a::after { display: none; }
  .nav-cv { margin-top: 0.7rem; text-align: center; border-bottom: 0 !important; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.7rem; min-height: auto; }
  .portrait-wrap { justify-self: start; width: min(70vw, 21rem); }
  .hero-copy h1 { font-size: clamp(3.2rem, 13vw, 6rem); }
  .highlight-grid, .quick-contact, .two-column-detail, .cta-inner, .contact-main { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 17rem; }
  .bio-layout { grid-template-columns: 1fr; }
  .bio-portrait { position: static; width: min(75vw, 23rem); }
  .info-grid, .award-grid, .profile-grid { grid-template-columns: 1fr; }
  .research-group-heading { grid-template-columns: 3.7rem minmax(0, 1fr); }
  .accordion-list { margin-left: 5.2rem; }
  .course { grid-template-columns: 1fr; gap: 1.2rem; }
  .presentation-year { grid-template-columns: 1fr; gap: 1.5rem; }
  .presentation-list { grid-template-columns: 1fr; }
  .presentations-cta { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
  body { font-size: 0.96rem; }
  .shell { width: min(100% - 2rem, 76rem); }
  .header-inner { min-height: 4.2rem; }
  .hero-inner { padding-block: 2.8rem 4rem; }
  .portrait-wrap { width: min(78vw, 20rem); }
  .hero-copy h1 { font-size: clamp(3rem, 16vw, 4.6rem); }
  .home-links, .content-section, .quick-contact { padding-block: 4rem; }
  .page-banner { min-height: 18rem; }
  .page-banner h1 { font-size: clamp(3.4rem, 18vw, 5rem); }
  .section-intro h2, .content-section > .section-intro h2 { font-size: 2.4rem; }
  .timeline article { grid-template-columns: 1fr; }
  .timeline-date { grid-row: auto; }
  .research-group-heading { grid-template-columns: 1fr; gap: 0.2rem; }
  .accordion-list { margin-left: 0; }
  .skill-list { grid-template-columns: 1fr; }
  .email-link, .contact-primary { font-size: 1.15rem; overflow-wrap: anywhere; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 0.5rem; padding-block: 1.5rem; }
}