/* ==========================================================================
   GabLab — site styles
   Colors, fonts and spacing are defined once in :root below.
   ========================================================================== */

/* Fonts are self-hosted in assets/fonts (SIL Open Font License). */
@font-face {
  font-family: "Outfit";
  src: url("assets/fonts/outfit-var.woff2") format("woff2");
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("assets/fonts/source-serif-4-var.woff2") format("woff2");
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Source Serif 4";
  src: url("assets/fonts/source-serif-4-italic-var.woff2") format("woff2");
  font-weight: 400 700;
  font-style: italic;
  font-display: swap;
}

:root {
  /* Brand colors, taken from the GabLab logo */
  --ink: #000000;          /* logo black */
  --gold: #b3a369;         /* logo gold (Georgia Tech Tech Gold) */
  --gold-text: #857437;    /* darker gold that stays readable on white */
  --paper: #ffffff;
  --graphite: #54585a;     /* secondary text */
  --mist: #f3f3f0;         /* quiet panels */
  --line: #e1e1dc;         /* hairlines */
  --on-dark-muted: #bdbdb6;/* secondary text on black */
  --focus: var(--gold-text);

  --font-display: "Outfit", "Avenir Next", "Segoe UI", system-ui, sans-serif;
  --font-text: "Source Serif 4", "Iowan Old Style", "Charter", Georgia, serif;

  --container: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --header-height: 124px;
  --logo-height: 88px;
}

/* ---------- Base ---------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: 24px;
}

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

img,
video,
canvas,
iframe { display: block; max-width: 100%; }

img,
video { height: auto; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

p { text-wrap: pretty; }

a {
  color: inherit;
  text-decoration-line: underline;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 2px;
  text-underline-offset: 0.2em;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}
a:hover { color: var(--gold-text); text-decoration-color: currentColor; }

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

strong, b { font-weight: 700; }

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

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -100px;
  z-index: 100;
  padding: 0.75rem 1.25rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 500;
  text-decoration: none;
}
.skip-link:focus { top: 12px; color: var(--paper); }

.wrap {
  width: 100%;
  max-width: calc(var(--container) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- Buttons and chips ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.7em 1.5em;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.button:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}
.button--outline {
  background: transparent;
  color: var(--ink);
}
.button--outline:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.chip {
  display: inline-block;
  padding: 0.38em 0.9em;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
}
.chip:hover {
  border-color: var(--gold);
  background: var(--mist);
  color: var(--ink);
}
.chip em { font-style: normal; }

/* ---------- Header ---------- */

.site-header {
  position: relative;
  z-index: 20;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: var(--header-height);
}

.brand {
  display: block;
  flex: none;
  line-height: 0;
}
.brand img {
  width: auto;
  height: var(--logo-height);
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem clamp(1rem, 2.4vw, 2.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  position: relative;
  display: block;
  padding: 0.5rem 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  text-decoration: none;
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s ease;
}
.site-nav a:hover { color: var(--ink); }
.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  padding: 0.5rem 1rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
}
.nav-toggle__icon,
.nav-toggle__icon::before,
.nav-toggle__icon::after {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle__icon { position: relative; }
.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
}
.nav-toggle__icon::before { top: -6px; }
.nav-toggle__icon::after { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__icon::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  :root {
    --header-height: 88px;
    --logo-height: 60px;
  }
  .js .nav-toggle { display: inline-flex; }
  .js .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  }
  .js .site-nav.is-open { display: block; }
  .js .site-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.25rem var(--gutter) 1rem;
  }
  .js .site-nav a {
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.25rem;
  }
  .js .site-nav li:last-child a { border-bottom: 0; }
  .js .site-nav a::after { display: none; }
  .js .site-nav a[aria-current="page"] {
    padding-left: 0.9rem;
    box-shadow: inset 3px 0 0 var(--gold);
  }
}

/* ---------- Page headings (inner pages) ---------- */

.page-head {
  padding-block: clamp(48px, 8vw, 112px) clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}
.page-head h1 {
  margin: 0;
  font-size: clamp(3rem, 1.6rem + 5.6vw, 6rem);
  font-weight: 600;
  line-height: 0.95;
  letter-spacing: -0.04em;
}
.page-head .lede {
  max-width: 62ch;
  margin: clamp(20px, 2.5vw, 32px) 0 0;
  color: var(--graphite);
  font-size: clamp(1.15rem, 1rem + 0.45vw, 1.375rem);
  line-height: 1.55;
}

/* ---------- Sections and running text ---------- */

.section { padding-block: clamp(48px, 7vw, 104px); }
.section + .section { padding-top: 0; }

.section-title {
  margin: 0 0 clamp(24px, 3vw, 40px);
  font-size: clamp(2rem, 1.4rem + 2.1vw, 3.25rem);
  letter-spacing: -0.03em;
}

.prose { max-width: 68ch; }
.prose > :first-child { margin-top: 0; }
.prose p { margin: 0 0 1.1em; }
.prose h3 {
  margin: 1.8em 0 0.5em;
  font-size: 1.5rem;
}
.prose ol,
.prose ul { margin: 0 0 1.1em; padding-left: 1.3em; }
.prose li { margin-bottom: 0.5em; }
.prose li::marker {
  color: var(--gold-text);
  font-family: var(--font-display);
  font-weight: 600;
}

/* ---------- Home: introduction ---------- */

.intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) clamp(170px, 19vw, 250px);
  column-gap: clamp(32px, 6vw, 96px);
}

.intro__text { padding-block: clamp(56px, 8vw, 120px) clamp(56px, 7vw, 104px); }

.intro__title {
  max-width: 21ch;
  margin: 0;
  font-size: clamp(2.2rem, 1.2rem + 3.3vw, 4.1rem);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.035em;
}

.intro__body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 3.5vw, 56px);
  margin-top: clamp(32px, 4.5vw, 56px);
}
.intro__body p { margin: 0; }
.intro__body .intro__lede {
  font-size: 1.25rem;
  line-height: 1.55;
}

.intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: clamp(32px, 4vw, 48px);
}

/* The black column of flowing beads, which runs down into the slideshow below */
.intro__pillar {
  position: relative;
  overflow: hidden;
  background: #000;
}
.intro__pillar video,
.intro__pillar img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 900px) {
  .intro__grid { grid-template-columns: minmax(0, 1fr); }
  .intro__pillar { display: none; }
  .intro__body { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Home: research slideshow ---------- */

.showcase {
  --focus: var(--gold);
  background: #000;
  color: #fff;
  padding-block: clamp(40px, 6vw, 88px);
}

.carousel {
  --cols: minmax(0, 1.9fr) minmax(250px, 1fr);
  --col-gap: clamp(24px, 4vw, 64px);
  display: grid;
  grid-template-columns: var(--cols);
  column-gap: var(--col-gap);
}

.carousel__viewport {
  grid-column: 1 / -1;
  grid-row: 1;
  display: grid;
  touch-action: pan-y;
}

.slide {
  grid-area: 1 / 1;
  display: grid;
  grid-template-columns: var(--cols);
  column-gap: var(--col-gap);
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.7s ease, visibility 0s linear 0.7s;
}
.slide.is-active {
  opacity: 1;
  visibility: visible;
  transition: opacity 0.7s ease;
}

.slide__media {
  aspect-ratio: 4 / 3;
  background: #000;
}
.slide__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slide__caption {
  align-self: end;
  padding-bottom: 104px; /* room for the controls */
}
.slide__title {
  margin: 0 0 0.6rem;
  color: #fff;
  font-size: clamp(1.75rem, 1.15rem + 1.6vw, 2.6rem);
  letter-spacing: -0.025em;
}
.slide__text {
  margin: 0 0 1.25rem;
  color: var(--on-dark-muted);
  font-size: 1.125rem;
  line-height: 1.55;
}
.slide__link {
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 500;
  text-decoration-color: currentColor;
  text-decoration-thickness: 1px;
}
.slide__link:hover { color: #fff; }

.carousel__controls {
  grid-column: 2;
  grid-row: 1;
  align-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 8px;
}

.carousel__button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}
.carousel__button:hover {
  border-color: var(--gold);
  background: var(--gold);
  color: #000;
}
.carousel__button svg { width: 20px; height: 20px; }
.carousel__button .icon-play { display: none; }
.carousel.is-paused .carousel__button .icon-play { display: block; }
.carousel.is-paused .carousel__button .icon-pause { display: none; }

.carousel__counter {
  min-width: 4.5ch;
  color: var(--on-dark-muted);
  font-family: var(--font-display);
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  text-align: center;
}
.carousel__play { margin-left: auto; }

.carousel__thumbs {
  grid-column: 1;
  grid-row: 2;
  display: flex;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}
.carousel__thumbs li {
  flex: 1 1 0;
  min-width: 0;
  max-width: 84px;
}
.carousel__thumb {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  padding: 0;
  border: 0;
  background: #000;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s ease;
}
.carousel__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.carousel__thumb:hover { opacity: 0.85; }
.carousel__thumb[aria-current="true"] { opacity: 1; }
/* progress toward the next slide */
.carousel__thumb::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8px;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
}
.carousel__thumb[aria-current="true"]::after { transform: scaleX(var(--progress, 1)); }

/* Without JavaScript the slideshow shows its first slide only, so hide the controls */
html:not(.js) .carousel__controls,
html:not(.js) .carousel__thumbs { display: none; }
html:not(.js) .slide__caption { padding-bottom: 0; }

@media (max-width: 900px) {
  .carousel { grid-template-columns: minmax(0, 1fr); }
  .slide {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 20px;
  }
  .slide__caption {
    align-self: start;
    padding-bottom: 0;
  }
  .carousel__controls {
    grid-column: 1;
    grid-row: 2;
    margin-top: 20px;
    padding-bottom: 0;
  }
  .carousel__thumbs { display: none; }
}

/* ---------- Home: join band ---------- */

.join { background: var(--mist); }
.join__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px 48px;
  padding-block: clamp(48px, 6vw, 88px);
}
.join h2 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.9rem, 1.3rem + 2vw, 3rem);
  letter-spacing: -0.03em;
}
.join p {
  max-width: 52ch;
  margin: 0;
  color: var(--graphite);
}

/* ---------- Home: lab news ---------- */

.news { padding-block: clamp(56px, 7vw, 104px); }
.news-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.news-item {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 6px clamp(24px, 4vw, 56px);
  padding-block: 28px;
  border-top: 1px solid var(--line);
}
.news-item__date {
  padding-top: 0.3em;
  color: var(--gold-text);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
}
.news-item__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.4rem, 1.1rem + 0.9vw, 1.9rem);
  letter-spacing: -0.02em;
}
.news-item__body p {
  max-width: 66ch;
  margin: 0 0 0.75rem;
}
.news-item__link {
  font-family: var(--font-display);
  font-weight: 500;
}

@media (max-width: 640px) {
  .news-item { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Research ---------- */

.themes-intro {
  max-width: 62ch;
  margin: 0 0 1.5rem;
  color: var(--graphite);
}

.themes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 3vw, 40px);
  margin: 0;
  padding: 0;
  list-style: none;
}
.themes li {
  padding-top: 1rem;
  border-top: 3px solid var(--gold);
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1rem + 1vw, 1.9rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.projects {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.project {
  display: grid;
  grid-template-columns: clamp(200px, 26vw, 300px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  padding-block: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
}
.project__media {
  margin: 0;
  aspect-ratio: 1 / 1;
  background: #000;
}
.project__media video,
.project__media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.project__title {
  margin: 0 0 0.6rem;
  font-size: clamp(1.45rem, 1.15rem + 0.9vw, 1.9rem);
  letter-spacing: -0.02em;
}
.project__text p {
  max-width: 64ch;
  margin: 0;
}

.past {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.past > li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 12px 40px;
  padding-block: 22px;
  border-top: 1px solid var(--line);
}
.past__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.3;
}

@media (max-width: 760px) {
  .themes { grid-template-columns: minmax(0, 1fr); }
  .project { grid-template-columns: minmax(0, 1fr); }
  .project__media { max-width: 360px; }
  .past > li { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Publications ---------- */

.pubs {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
}
.pub {
  display: grid;
  grid-template-columns: 3rem 176px minmax(0, 1fr);
  gap: 12px clamp(20px, 3vw, 36px);
  align-items: start;
  padding-block: 32px;
  border-top: 1px solid var(--line);
}
.pub:first-child {
  padding-top: 0;
  border-top: 0;
}
.pub__num {
  color: var(--gold-text);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}
.pub__thumb {
  display: block;
  background: var(--mist);
  line-height: 0;
}
.pub__thumb img { width: 100%; }
.pub__title {
  margin: 0 0 0.45rem;
  font-size: 1.3rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
}
.pub__authors { margin: 0 0 0.2rem; }
.pub__venue {
  margin: 0;
  color: var(--graphite);
  font-style: italic;
}
.pub__venue strong {
  color: var(--ink);
  font-style: normal;
}
.badge {
  display: inline-block;
  margin-left: 0.4em;
  padding: 0.15em 0.65em;
  border-radius: 999px;
  background: var(--gold);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-style: normal;
  font-weight: 500;
  line-height: 1.4;
  vertical-align: 0.15em;
  white-space: nowrap;
}
.pub__links { margin-top: 0.9rem; }

@media (max-width: 760px) {
  .pub { grid-template-columns: 2.25rem minmax(0, 1fr); }
  .pub__thumb {
    grid-column: 2;
    max-width: 168px;
  }
  .pub__body { grid-column: 2; }
}

/* ---------- Gallery ---------- */

.masonry {
  columns: 3 280px;
  column-gap: 28px;
}
.tile {
  margin: 0 0 32px;
  break-inside: avoid;
}
.tile a,
.poster a {
  display: block;
  line-height: 0;
}
.tile img,
.poster img { width: 100%; }
.tile figcaption,
.poster figcaption {
  margin-top: 0.7rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.35;
}
.poster__meta {
  display: block;
  color: var(--graphite);
  font-weight: 400;
}
.award {
  display: block;
  margin-top: 0.15rem;
  color: var(--gold-text);
  font-weight: 600;
}

.posters {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 40px);
  align-items: start;
}
.poster { margin: 0; }

.video-entry + .video-entry { margin-top: clamp(48px, 6vw, 80px); }
.video-entry h3 {
  margin: 0 0 0.6rem;
  font-size: clamp(1.4rem, 1.1rem + 0.9vw, 1.9rem);
  letter-spacing: -0.02em;
}
.video-meta {
  margin: 0 0 0.3rem;
  color: var(--graphite);
}
.video-meta strong { color: var(--gold-text); font-family: var(--font-display); font-weight: 600; }
.embed {
  position: relative;
  aspect-ratio: 16 / 9;
  margin-top: 20px;
  background: #000;
}
.embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

@media (max-width: 700px) {
  .posters { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- Image viewer (gallery, posters, graphical abstracts) ---------- */

.lightbox {
  --focus: var(--gold);
  width: 100vw;
  max-width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  margin: 0;
  padding: 64px clamp(12px, 4vw, 48px) 24px;
  border: 0;
  background: #000;
  color: #fff;
}
.lightbox::backdrop { background: #000; }
.lightbox[open] {
  display: flex;
  flex-direction: column;
}
.lightbox__figure {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 0;
  margin: 0;
}
.lightbox__figure img {
  max-width: 100%;
  max-height: calc(100dvh - 160px);
  object-fit: contain;
}
.lightbox__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: center;
  margin-top: 16px;
  font-family: var(--font-display);
  text-align: center;
}
.lightbox__caption a { color: var(--gold); }
.lightbox__close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  background: transparent;
  color: #fff;
  cursor: pointer;
}
.lightbox__close:hover { border-color: var(--gold); background: var(--gold); color: #000; }
.lightbox__close svg { width: 20px; height: 20px; }

/* ---------- People ---------- */

.pi {
  display: grid;
  grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.pi__photo {
  margin: 0;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--mist);
}
.pi__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 30%;
}
.pi__name {
  margin: 0;
  font-size: clamp(2.2rem, 1.6rem + 1.8vw, 3.25rem);
  letter-spacing: -0.03em;
}
.pi__role {
  margin: 0.35rem 0 0.75rem;
  color: var(--gold-text);
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 500;
}
.pi__title {
  margin: 0 0 1.25rem;
  color: var(--graphite);
}
.pi__links { margin-bottom: 2rem; }
.pi__bio p {
  max-width: 66ch;
  margin: 0 0 1.1em;
}

.members {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 32px;
  margin: 0 0 40px;
  padding: 0;
  list-style: none;
}
.member__photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--mist);
}
.member__name {
  margin: 0.8rem 0 0.1rem;
  font-size: 1.3rem;
}
.member__role {
  margin: 0;
  color: var(--graphite);
  font-size: 1rem;
}

.members-empty {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 40px;
  padding: clamp(24px, 4vw, 40px);
  background: var(--mist);
}
.members-empty p {
  max-width: 56ch;
  margin: 0;
}

@media (max-width: 760px) {
  .pi { grid-template-columns: minmax(0, 1fr); }
  .pi__photo { max-width: 320px; }
}

/* ---------- Openings ---------- */

.facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin: 0 0 clamp(32px, 4vw, 48px);
  padding: 0;
  border-block: 1px solid var(--line);
}
.facts div {
  padding: 18px 20px 18px 0;
}
.facts div + div {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}
.facts dt {
  color: var(--graphite);
  font-family: var(--font-display);
  font-size: 0.9375rem;
}
.facts dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

.opening__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 400px);
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.apply-panel {
  padding: clamp(24px, 3vw, 36px);
  background: var(--mist);
}
.apply-panel h3 {
  margin: 0 0 1rem;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
}
.apply-panel ol {
  margin: 0 0 1.5rem;
  padding-left: 1.3em;
}
.apply-panel li { margin-bottom: 0.75em; }
.apply-panel li::marker {
  color: var(--gold-text);
  font-family: var(--font-display);
  font-weight: 600;
}

@media (max-width: 860px) {
  .opening__grid { grid-template-columns: minmax(0, 1fr); }
}

.pdf-block { margin-top: clamp(48px, 6vw, 80px); }
.pdf-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px 32px;
  margin-bottom: 20px;
}
.pdf-block__head h2 {
  margin: 0;
  font-size: clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem);
  letter-spacing: -0.025em;
}
.pdf-block__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
}
.pdf-block__actions .button { min-height: 44px; font-size: 1rem; }
.pdf-viewer.is-missing .pdf-block__actions { display: none; }

.pdf-frame {
  padding: clamp(12px, 3.5vw, 48px);
  background: var(--mist);
}
.pdf-pages {
  display: grid;
  gap: 20px;
  justify-items: center;
}
.pdf-pages canvas,
.pdf-pages iframe {
  width: 100%;
  max-width: 850px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 10px 30px rgba(0, 0, 0, 0.1);
}
.pdf-pages iframe {
  aspect-ratio: 8.5 / 11;
  height: auto;
  border: 0;
}
.pdf-status {
  margin: 0;
  padding: 56px 16px;
  color: var(--graphite);
  font-family: var(--font-display);
  text-align: center;
}

@media (max-width: 640px) {
  .facts { grid-template-columns: minmax(0, 1fr); }
  .facts div,
  .facts div + div {
    padding: 14px 0;
    border-left: 0;
  }
  .facts div + div { border-top: 1px solid var(--line); }
}

/* ---------- Contact ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: start;
}
.contact-list {
  margin: 0 0 28px;
  border-bottom: 1px solid var(--line);
}
.contact-list div {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 4px 20px;
  padding-block: 16px;
  border-top: 1px solid var(--line);
}
.contact-list dt {
  color: var(--graphite);
  font-family: var(--font-display);
  font-weight: 500;
}
.contact-list dd {
  min-height: 1.65em;
  margin: 0;
  overflow-wrap: anywhere;
}
@media (max-width: 480px) {
  .contact-list div { grid-template-columns: minmax(0, 1fr); }
}
.contact-list address { font-style: normal; }
.map {
  aspect-ratio: 4 / 3;
  background: var(--mist);
}
.map iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.atlanta {
  display: grid;
  grid-template-columns: minmax(220px, 420px) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.atlanta__photo { margin: 0; }
.atlanta__photo img { width: 100%; }
.atlanta__text p {
  max-width: 62ch;
  margin: 0 0 1.1em;
}

@media (max-width: 860px) {
  .contact-grid,
  .atlanta { grid-template-columns: minmax(0, 1fr); }
  .atlanta__photo { max-width: 420px; }
}

/* ---------- Footer ---------- */

.site-footer {
  --focus: var(--gold);
  background: #000;
  color: #fff;
  font-size: 1rem;
}
.site-footer a {
  color: #fff;
  text-decoration-color: var(--gold);
  text-decoration-thickness: 1px;
}
.site-footer a:hover { color: var(--gold); }

.site-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 40px;
  padding-block: clamp(48px, 6vw, 72px) 40px;
}
.site-footer__logo { display: inline-block; line-height: 0; }
.site-footer__logo img {
  width: auto;
  height: 76px;
}
.site-footer address {
  margin-top: 20px;
  color: var(--on-dark-muted);
  font-style: normal;
  line-height: 1.55;
}
.footer-heading {
  margin: 0 0 0.75rem;
  color: var(--gold);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
}
.footer-list {
  display: grid;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-footer__base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 24px;
  padding-block: 20px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  color: var(--on-dark-muted);
  font-size: 0.9375rem;
}
.site-footer__base p { margin: 0; }

@media (max-width: 760px) {
  .site-footer__grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
}

/* ---------- Motion preferences ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}