/* ==========================================================================
   Autonomous Controls Laboratory, UC Berkeley
   Clean, readable, accessible stylesheet
   ========================================================================== */

:root {
  /* UC Berkeley brand palette */
  --berkeley-blue: #003262;
  --berkeley-blue-dark: #002148;
  --california-gold: #FDB515;
  --founders-rock: #3B7EA1;
  --bay-fog: #DDD5C7;

  /* Neutrals */
  --ink: #1c2733;
  --ink-soft: #46586a;
  --paper: #fbfcfe;
  --paper-soft: #f3f7fa;
  --panel: #edf4fa;
  --line: #dde4ea;

  /* Type scale */
  --font-body: "Charter", "Georgia", "Times New Roman", serif;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;

  --measure: 70ch;
}

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

html,
body {
  overflow-x: hidden;
  overflow-x: clip;
}

img { max-width: 100%; height: auto; }

/* ---- Accessibility helpers ---- */
.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -4rem;
  z-index: 100;
  padding: 0.6rem 1rem;
  background: var(--california-gold);
  color: var(--berkeley-blue-dark);
  font-family: var(--font-ui);
  font-weight: 700;
  border-radius: 0 0 6px 6px;
  text-decoration: none;
  transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

:focus-visible {
  outline: 3px solid var(--california-gold);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Layout ---- */
.container {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

main { display: block; }

/* ---- Header & navigation ---- */
.site-header {
  background: var(--berkeley-blue);
  color: #f7fbff;
  border-bottom: 4px solid var(--california-gold);
}

.site-header .container {
  display: grid;
  grid-template-columns: minmax(0, max-content) minmax(0, max-content);
  width: 100%;
  max-width: 100rem;
  align-items: center;
  justify-content: center;
  column-gap: clamp(2.75rem, 5.5vw, 6rem);
  row-gap: 0.55rem;
  padding-top: 1rem;
  padding-bottom: 0.9rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: #f7fbff;
  min-width: 0;
}
.brand:hover,
.brand:focus-visible {
  color: #f7fbff;
}
.brand:hover .brand-name { text-decoration: underline; }

.brand-logo {
  height: 2.6rem;
  width: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  overflow-wrap: anywhere;
}

.brand-sub {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--california-gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  overflow-wrap: anywhere;
}

.nav-toggle {
  display: none;
  background: transparent;
  color: #f7fbff;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 6px;
  padding: 0.45rem 0.8rem;
  font-family: var(--font-ui);
  font-size: 1rem;
  cursor: pointer;
}
.nav-toggle:hover { border-color: var(--california-gold); }

.site-nav ul {
  display: grid;
  grid-template-columns: repeat(7, max-content);
  align-items: center;
  justify-content: center;
  gap: clamp(0.15rem, 0.55vw, 0.55rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: block;
  padding: 0.55rem clamp(0.55rem, 0.65vw, 0.85rem);
  font-family: var(--font-ui);
  font-size: clamp(0.84rem, 0.98vw, 0.95rem);
  font-weight: 600;
  color: #f7fbff;
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
}

.site-nav a:hover { background: rgba(255, 255, 255, 0.12); }

.site-nav a[aria-current="page"] {
  background: var(--california-gold);
  color: var(--berkeley-blue-dark);
}

@media (max-width: 72rem) {
  .site-header .container {
    grid-template-columns: 1fr;
    justify-items: center;
  }
}

@media (max-width: 47rem) {
  .site-header .container {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .nav-toggle { display: inline-block; }
  .site-nav { width: 100%; }
  .site-nav[hidden] { display: none; }
  .site-nav ul {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding-bottom: 0.75rem;
  }
}

/* ---- Hero ---- */
.hero {
  background:
    linear-gradient(160deg, var(--berkeley-blue) 0%, var(--berkeley-blue-dark) 70%);
  color: #f7fbff;
  padding: clamp(3rem, 5vw, 4rem) 0 clamp(3.25rem, 5vw, 4.5rem);
}

.hero h1 {
  font-family: var(--font-ui);
  font-size: clamp(2rem, 4.6vw, 3.25rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  max-width: 19ch;
}

.hero .lede {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  max-width: 50ch;
  color: #d7e2ee;
  margin: 0 0 2rem;
}

.btn {
  display: inline-block;
  font-family: var(--font-ui);
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  margin-right: 0.75rem;
  margin-bottom: 0.5rem;
}

.btn-gold {
  background: var(--california-gold);
  color: var(--berkeley-blue-dark);
}
.btn-gold:hover { background: #ffc63d; }

.btn-outline {
  color: #f7fbff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}
.btn-outline:hover { border-color: var(--california-gold); color: var(--california-gold); }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  gap: clamp(2rem, 6vw, 4.75rem);
  align-items: center;
}

.hero-media {
  background: #fbfcfe;
  border-radius: 0.9rem;
  padding: 0.85rem;
  border-bottom: 5px solid var(--california-gold);
  box-shadow: 0 1.5rem 4rem rgba(0, 20, 48, 0.22);
}

.hero-media video,
.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 0.45rem;
}

@media (max-width: 47rem) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero { padding: 2.75rem 0 2.5rem; }
  .hero h1 {
    font-size: clamp(1.75rem, 8.2vw, 2rem);
    max-width: 100%;
  }
  .hero-media {
    max-width: 18rem;
    padding: 0.7rem;
  }
}

/* ---- Sections ---- */
.section { padding: clamp(3.25rem, 6vw, 5rem) 0; }
.section-alt { background: var(--paper-soft); }

.section h2 {
  font-family: var(--font-ui);
  font-size: clamp(1.65rem, 2.5vw, 2rem);
  line-height: 1.1;
  color: var(--berkeley-blue);
  margin: 0 0 0.9rem;
}

.section .section-intro {
  max-width: var(--measure);
  color: var(--ink-soft);
  margin: 0 0 2rem;
}

.section h3 {
  font-family: var(--font-ui);
  font-size: 1.2rem;
  color: var(--berkeley-blue);
  margin: 2rem 0 0.5rem;
}

p, li { max-width: var(--measure); }

a { color: var(--founders-rock); }
a:hover { color: var(--berkeley-blue); }

.section-link,
.section-note {
  margin-top: 1.5rem;
}

.section-link a,
.project-more {
  font-family: var(--font-ui);
  font-weight: 700;
}

/* Research themes */
.research-index {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(19rem, 1fr));
  gap: 0 2.5rem;
  margin-top: 2.25rem;
  border-top: 1px solid var(--line);
}

.theme-item,
.research-area,
.project-entry,
.resource-entry {
  display: grid;
  grid-template-columns: 3.25rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  border-bottom: 1px solid var(--line);
}

.theme-item {
  padding: 1.6rem 0;
}

.theme-number,
.project-number,
.research-number,
.resource-number {
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--founders-rock);
}

.theme-item h3,
.project-entry h3,
.research-area h3,
.resource-entry h3 {
  margin: 0 0 0.45rem;
}

.theme-item p,
.project-entry p,
.research-area p,
.resource-entry p {
  margin: 0;
}

/* Research map */
.research-map {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(24rem, 1fr));
  gap: 0 2.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.research-area {
  padding: 1.55rem 0;
}

/* Project directory */
.project-directory {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 32rem), 1fr));
  gap: 0 2.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.project-entry {
  position: relative;
  padding: 1.5rem 0;
}

.project-directory .project-entry {
  grid-template-columns: 3.25rem minmax(8.5rem, 12rem) minmax(0, 1fr);
  gap: 1.1rem;
  align-items: center;
}

.project-entry-media {
  display: block;
  grid-column: 2;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.project-entry-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-entry-body {
  grid-column: 3;
}

.project-link {
  color: var(--berkeley-blue);
  text-decoration: none;
}

.project-link::after {
  content: "";
  position: absolute;
  inset: 0;
}

.project-entry:hover .project-link {
  text-decoration: underline;
}

.project-entry:hover .project-more {
  color: var(--berkeley-blue);
}

.project-more {
  grid-column: 3;
  align-self: start;
  margin-top: -0.2rem;
  color: var(--founders-rock);
  font-size: 0.9rem;
}

.project-tagline {
  display: block;
  margin-top: 0.45rem;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink-soft);
}

/* Resource directory */
.resource-directory {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 0 2.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

.resource-entry {
  padding: 1.45rem 0;
}

.resource-entry h3 {
  font-family: var(--font-ui);
  font-size: 1.15rem;
  color: var(--berkeley-blue);
}

.resource-action {
  grid-column: 2;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--founders-rock);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.resource-action:hover {
  color: var(--berkeley-blue);
}

/* ---- Figures on project pages ---- */
.figure-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

figure.result {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1rem;
}

figure.result img,
figure.result video {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 6px;
}

figure.result .figure-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  background: var(--paper-soft);
  border: 2px dashed var(--line);
  border-radius: 6px;
  color: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  text-align: center;
  padding: 1rem;
}

figure.result figcaption {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin-top: 0.75rem;
  line-height: 1.5;
}

.project-showcase {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(19rem, 1.2fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: clamp(1.5rem, 3vw, 2.4rem) 0;
}

.project-showcase-copy p {
  margin-top: 0;
}

.project-kicker {
  margin: 0 0 0.5rem;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--founders-rock);
}

.project-facts {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.project-facts li {
  display: grid;
  grid-template-columns: 5.75rem minmax(0, 1fr);
  gap: 0.8rem;
  max-width: none;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--line);
}

.project-facts strong {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--berkeley-blue);
}

.project-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.35rem 0 0;
}

.project-action {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.45rem;
  padding: 0.62rem 0.95rem;
  border: 2px solid var(--berkeley-blue);
  border-radius: 8px;
  background: var(--berkeley-blue);
  color: #fff;
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1.2;
  text-decoration: none;
}

.project-action:hover {
  background: var(--berkeley-blue-dark);
  color: #fff;
}

.project-action-secondary {
  background: transparent;
  color: var(--berkeley-blue);
}

.project-action-secondary:hover {
  background: var(--paper-soft);
  color: var(--berkeley-blue);
}

.project-visual {
  --project-tilt-x: 0deg;
  --project-tilt-y: 0deg;
  min-height: clamp(20rem, 34vw, 27rem);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--founders-rock) 42%, var(--line));
  border-radius: 12px;
  background: linear-gradient(180deg, #f9fbfd 0%, #edf4fa 100%);
  box-shadow: 0 1.4rem 3.2rem rgba(0, 33, 72, 0.14);
  transform: rotateX(var(--project-tilt-y)) rotateY(var(--project-tilt-x));
  transform-style: preserve-3d;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.project-visual:hover,
.project-visual:focus-within {
  box-shadow: 0 1.6rem 3.5rem rgba(0, 33, 72, 0.18);
}

.project-visual svg {
  display: block;
  width: 100%;
  height: 100%;
  min-height: clamp(20rem, 34vw, 27rem);
}

.visual-grid {
  stroke: rgba(0, 50, 98, 0.11);
  stroke-width: 1;
}

.visual-axis {
  stroke: rgba(0, 50, 98, 0.28);
  stroke-width: 1.5;
}

.visual-path {
  fill: none;
  stroke: var(--berkeley-blue);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.visual-path-soft {
  fill: none;
  stroke: var(--founders-rock);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 7 8;
  opacity: 0.75;
}

.visual-flow {
  stroke-dasharray: 12 12;
  animation: project-dash 14s linear infinite;
}

.visual-pulse {
  animation: project-pulse 2.8s ease-in-out infinite;
  transform-origin: center;
}

.visual-orbit {
  animation: project-orbit 18s linear infinite;
  transform-origin: 50% 50%;
}

.visual-float {
  animation: project-float 5s ease-in-out infinite;
}

.visual-label {
  fill: var(--berkeley-blue);
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 800;
}

.visual-note {
  fill: var(--ink-soft);
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 700;
}

.visual-gold {
  fill: var(--california-gold);
}

.visual-blue {
  fill: var(--berkeley-blue);
}

.visual-rock {
  fill: var(--founders-rock);
}

.visual-panel {
  fill: rgba(255, 255, 255, 0.72);
  stroke: rgba(0, 50, 98, 0.14);
  stroke-width: 1;
}

.media-link-list {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.media-link-list li {
  max-width: none;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}

.media-link-list a {
  font-family: var(--font-ui);
  font-weight: 800;
}

figure.result img.project-result-image {
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #fff;
}

@keyframes project-dash {
  to { stroke-dashoffset: -240; }
}

@keyframes project-pulse {
  0%, 100% { opacity: 0.55; transform: scale(0.96); }
  50% { opacity: 1; transform: scale(1.08); }
}

@keyframes project-orbit {
  to { transform: rotate(360deg); }
}

@keyframes project-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ---- News list ---- */
.news-list {
  list-style: none;
  margin: 1.75rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.news-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
  max-width: 100%;
}

.news-list time {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--berkeley-blue);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

@media (max-width: 36rem) {
  .news-list li { grid-template-columns: 1fr; gap: 0.15rem; }
}

/* People */
.people-roster {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr));
  gap: 2rem;
  margin-top: 1.75rem;
}

.alumni-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 2.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.alumni-list li {
  min-width: 0;
  border-bottom: 1px solid var(--line);
}

.alumni-list-item {
  display: grid;
  gap: 0.2rem;
  min-height: 4.75rem;
  padding: 1rem 0;
  color: var(--ink);
  text-decoration: none;
}

.alumni-list-name {
  font-family: var(--font-ui);
  font-weight: 800;
  color: var(--berkeley-blue);
  line-height: 1.25;
}

.alumni-list-destination {
  max-width: 32ch;
  color: var(--ink);
  font-size: 0.98rem;
  line-height: 1.45;
}

.alumni-list-item:hover .alumni-list-name,
.alumni-list-item:focus-visible .alumni-list-name {
  color: var(--founders-rock);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.profile-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  overflow: hidden;
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.profile-card:hover,
.profile-card:focus-visible {
  box-shadow: 0 0.6rem 1.4rem rgba(0, 33, 72, 0.14);
  transform: translateY(-0.15rem);
}

.profile-card:hover .profile-card-name,
.profile-card:focus-visible .profile-card-name {
  color: var(--founders-rock);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.profile-card-media,
.pi-media,
.profile-hero-media {
  display: block;
  overflow: hidden;
  background: var(--berkeley-blue-dark);
}

.profile-card-media {
  width: 100%;
  aspect-ratio: 1;
}

.profile-photo {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-initials {
  display: flex;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  color: var(--california-gold);
  font-family: var(--font-ui);
  font-weight: 800;
  letter-spacing: 0.04em;
}

.profile-card-body,
.pi-card > span:last-child {
  display: grid;
  gap: 0.2rem;
}

.profile-card-body {
  padding: 1rem 1.1rem 1.25rem;
}

.profile-card-name,
.pi-name {
  font-family: var(--font-ui);
  font-weight: 800;
  color: var(--berkeley-blue);
  line-height: 1.25;
}

.profile-card-meta {
  font-family: var(--font-ui);
  font-size: 0.86rem;
  color: var(--ink-soft);
  line-height: 1.35;
}

.profile-card-note {
  font-size: 0.98rem;
  color: var(--ink);
  line-height: 1.45;
}

.pi-summary {
  font-size: 1.15rem;
  color: var(--ink);
  line-height: 1.55;
  max-width: 46ch;
}

.pi-card {
  display: grid;
  grid-template-columns: 23rem minmax(0, 1fr);
  gap: 2.75rem;
  align-items: center;
  padding: 2.25rem 0;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.pi-card:hover .pi-name,
.pi-card:focus-visible .pi-name {
  color: var(--founders-rock);
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.pi-media {
  width: 23rem;
  aspect-ratio: 1;
  border-radius: 0.9rem;
}

.pi-titles {
  display: grid;
  gap: 0.2rem;
  margin: 0.55rem 0 0.9rem;
}

.pi-titles span {
  display: block;
  font-family: var(--font-ui);
  font-size: 1.08rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.pi-name {
  font-size: clamp(1.75rem, 3vw, 2.6rem);
}

.people-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
  column-gap: 2rem;
  margin-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.person {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.person .avatar {
  grid-row: 1 / span 2;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.55rem;
  background: var(--berkeley-blue-dark);
  color: var(--california-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
}

.person h3 {
  grid-column: 2;
  margin: 0 0 0.1rem;
  font-family: var(--font-ui);
  font-size: 1.02rem;
  color: var(--ink);
}

.person .role {
  grid-column: 2;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.35;
}

.roster-section {
  margin-top: 2rem;
}

.roster-section > h3 {
  margin-bottom: 0.35rem;
}

.roster-intro {
  margin-top: 0;
}

.profile-hero-grid {
  display: grid;
  grid-template-columns: 13rem minmax(18rem, 30rem);
  gap: 2rem;
  align-items: center;
  justify-content: center;
}

.profile-hero-media {
  width: 13rem;
  aspect-ratio: 1;
  border-radius: 0.8rem;
}

.profile-hero-titles {
  display: grid;
  gap: 0.15rem;
  margin: 0.4rem 0 0;
}

.profile-hero-titles span {
  display: block;
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.profile-hero h1 {
  line-height: 1.08;
}

.profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18rem;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.profile-aside {
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.profile-links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  font-family: var(--font-ui);
}

.profile-links li {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  max-width: 100%;
}

/* Software */
.software-section {
  margin-top: 2.5rem;
}

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

.software-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(8rem, max-content);
  gap: 1.25rem;
  align-items: start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.software-item h4 {
  margin: 0 0 0.25rem;
  font-family: var(--font-ui);
  font-size: 1.05rem;
}

.software-item p {
  margin: 0;
}

.software-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.45rem 0.8rem;
  font-family: var(--font-ui);
  font-size: 0.84rem;
  color: var(--ink-soft);
}

.software-meta a {
  font-weight: 700;
}

@media (max-width: 52rem) {
  .research-index,
  .research-map,
  .project-directory,
  .resource-directory {
    grid-template-columns: 1fr;
  }

  .theme-item,
  .project-entry,
  .research-area,
  .resource-entry {
    grid-template-columns: 3rem minmax(0, 1fr);
    padding: 1.3rem 0;
  }

  .project-more {
    grid-column: 2;
    margin-top: 0.2rem;
  }

  .project-directory .project-entry {
    grid-template-columns: 3rem minmax(0, 1fr);
  }

  .project-entry-media,
  .project-entry-body {
    grid-column: 2;
  }

  .project-entry-media {
    max-width: 18rem;
  }

  .project-showcase {
    grid-template-columns: 1fr;
  }

  .profile-layout {
    grid-template-columns: 1fr;
  }

  .alumni-list {
    grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  }

  .software-item {
    grid-template-columns: 1fr;
  }

  .software-meta {
    justify-content: flex-start;
  }
}

@media (max-width: 36rem) {
  .pi-card,
  .profile-hero-grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .pi-media,
  .profile-hero-media {
    width: 100%;
    max-width: 22rem;
  }

  .project-facts li {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }

  .project-action {
    width: 100%;
  }
}

/* ---- Publications ---- */
.pub-list { list-style: none; margin: 1.5rem 0 0; padding: 0; }

.pub-list li {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
}

.pub-title {
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--ink);
  display: block;
  margin-bottom: 0.2rem;
}

.pub-meta {
  font-size: 0.95rem;
  color: var(--ink-soft);
  display: block;
}

.pub-links { font-family: var(--font-ui); font-size: 0.9rem; }

/* ---- Definition-style contact rows ---- */
.contact-list { margin: 1.5rem 0 0; }
.contact-list dt {
  font-family: var(--font-ui);
  font-weight: 700;
  color: var(--berkeley-blue);
  margin-top: 1.2rem;
}
.contact-list dd { margin: 0.2rem 0 0; }

/* ---- Footer ---- */
.site-footer {
  background: var(--berkeley-blue-dark);
  color: #c9d6e2;
  margin-top: 4rem;
  border-top: 4px solid var(--california-gold);
  padding: 2.5rem 0;
  font-family: var(--font-ui);
  font-size: 0.95rem;
}

.site-footer a { color: var(--california-gold); }

.site-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 2rem;
}

.site-footer h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #f7fbff;
  margin: 0 0 0.75rem;
}

.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.4rem; }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.85rem;
}

/* ---- Page hero (interior pages) ---- */
.page-hero {
  background: linear-gradient(180deg, var(--paper-soft) 0%, var(--paper) 100%);
  color: var(--ink);
  padding: 2.25rem 0 2rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-family: var(--font-ui);
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  color: var(--berkeley-blue);
  margin: 0 0 0.4rem;
}

.page-hero p {
  color: var(--ink-soft);
  margin: 0;
  max-width: 60ch;
}

/* ---- Print ---- */
@media print {
  .site-header, .site-footer, .nav-toggle, .skip-link, .btn { display: none; }
  body { font-size: 11pt; }
  a::after { content: " (" attr(href) ")"; font-size: 0.85em; }
}