:root {
  --airocs-ink: #071827;
  --airocs-navy: #0b2538;
  --airocs-slate: #3d5364;
  --airocs-muted: #667b8b;
  --airocs-green: #008c45;
  --airocs-green-bright: #18b767;
  --airocs-red: #cf0a3c;
  --airocs-cyan: #10a8bd;
  --airocs-paper: #f5f8fa;
  --airocs-card: rgba(255, 255, 255, 0.94);
  --airocs-line: rgba(12, 42, 61, 0.11);
  --airocs-shadow: 0 18px 50px rgba(12, 38, 56, 0.1);
  --airocs-shadow-hover: 0 24px 64px rgba(10, 45, 66, 0.17);
  --airocs-radius: 18px;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  min-height: 100vh;
  padding-top: 20px !important;
  color: var(--airocs-ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(0, 140, 69, 0.1), transparent 30rem),
    radial-gradient(circle at 92% 18%, rgba(16, 168, 189, 0.09), transparent 32rem),
    linear-gradient(180deg, #f9fbfc 0%, var(--airocs-paper) 48%, #eef4f6 100%);
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  content: "";
  pointer-events: none;
  opacity: 0.34;
  background-image:
    linear-gradient(rgba(11, 37, 56, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 37, 56, 0.025) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

::selection {
  color: #fff;
  background: var(--airocs-green);
}

.scroll-progress {
  position: fixed;
  z-index: 9999;
  top: 0;
  right: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--airocs-green), var(--airocs-cyan), var(--airocs-red));
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

a {
  color: #087b91;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 180ms ease, opacity 180ms ease;
}

a:hover,
a:focus {
  color: var(--airocs-green);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--airocs-ink);
  font-family: "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  letter-spacing: -0.025em;
}

p {
  color: var(--airocs-slate);
}

.container {
  width: min(1180px, calc(100% - 40px));
  max-width: 1180px !important;
}

.container > hr,
.span12 > hr {
  height: 1px;
  margin: 30px 0 !important;
  border: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 140, 69, 0.28), rgba(16, 168, 189, 0.22), transparent);
}

/* Research identity header */
.jumbotron.subhead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 150px;
  box-sizing: border-box;
  margin: 0;
  padding: 28px 38px !important;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  background:
    radial-gradient(circle at 78% 10%, rgba(16, 168, 189, 0.24), transparent 32%),
    radial-gradient(circle at 12% 100%, rgba(0, 140, 69, 0.28), transparent 36%),
    linear-gradient(120deg, #061522 0%, #0a2a3d 58%, #092231 100%) !important;
  box-shadow: 0 18px 55px rgba(4, 25, 39, 0.2);
  text-align: left !important;
  text-shadow: none !important;
}

.jumbotron.subhead::before {
  position: absolute;
  z-index: -1;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(90deg, transparent 26%, black);
  animation: airocs-grid-drift 24s linear infinite;
}

.jumbotron.subhead::after {
  position: absolute;
  z-index: -1;
  right: -58px;
  bottom: -112px;
  width: 310px;
  height: 310px;
  content: "";
  opacity: 0.7;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  box-shadow:
    0 0 0 35px rgba(0, 140, 69, 0.07),
    0 0 0 70px rgba(16, 168, 189, 0.045);
}

.hero-brand {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 28px;
}

.hero-logo-link {
  position: relative;
  display: block;
  flex: 0 0 220px;
  width: 220px;
  height: 76px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 15px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.hero-logo-link:hover,
.hero-logo-link:focus {
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.site-logo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-copy {
  min-width: 0;
}

.hero-kicker,
.page-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 7px;
  color: #82e8b3;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  line-height: 1.3;
  text-transform: uppercase;
}

.hero-kicker::before {
  width: 24px;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, var(--airocs-green-bright), var(--airocs-cyan));
}

.jumbotron.subhead h1 {
  max-width: 800px;
  margin: 0 0 8px !important;
  color: #fff !important;
  font-size: clamp(24px, 3vw, 36px) !important;
  font-weight: 760;
  line-height: 1.13 !important;
  letter-spacing: -0.035em;
}

.jumbotron.subhead .lead {
  margin: 0;
  color: #c5d7e1 !important;
  font-size: 15px !important;
  font-weight: 450;
  line-height: 1.45 !important;
}

.page-chip {
  position: absolute;
  right: 30px;
  bottom: 20px;
  margin: 0;
  padding: 6px 11px;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
}

/* Navigation */
.masthead {
  position: sticky;
  z-index: 100;
  top: 0;
  margin-bottom: 30px;
}

.masthead .navbar {
  margin: 0;
}

.masthead .navbar-inner {
  min-height: 54px;
  padding: 0 !important;
  border: 1px solid var(--airocs-line) !important;
  border-top: 0 !important;
  border-radius: 0 0 18px 18px !important;
  background: rgba(255, 255, 255, 0.9) !important;
  background-image: none !important;
  box-shadow: 0 12px 28px rgba(13, 37, 53, 0.1) !important;
  backdrop-filter: blur(16px);
  transition: box-shadow 200ms ease, background 200ms ease;
}

.masthead.is-scrolled .navbar-inner {
  background: rgba(255, 255, 255, 0.97) !important;
  box-shadow: 0 16px 34px rgba(8, 32, 48, 0.17) !important;
}

.navbar .nav {
  display: flex !important;
  align-items: stretch;
  width: 100%;
  margin: 0;
}

.navbar .nav > li {
  display: block !important;
  flex: 1 1 0;
  width: auto !important;
  float: none !important;
}

.navbar .nav > li > a {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  box-sizing: border-box;
  padding: 0 8px !important;
  color: #526675 !important;
  border: 0 !important;
  background: transparent !important;
  font-size: 11px;
  font-weight: 800 !important;
  letter-spacing: 0.045em;
  text-shadow: none !important;
  text-transform: uppercase;
  transition: color 180ms ease, background 180ms ease;
}

.navbar .nav > li > a::after {
  position: absolute;
  right: 18%;
  bottom: 0;
  left: 18%;
  height: 3px;
  content: "";
  border-radius: 999px 999px 0 0;
  background: linear-gradient(90deg, var(--airocs-green), var(--airocs-cyan));
  opacity: 0;
  transform: scaleX(0.35);
  transition: opacity 180ms ease, transform 180ms ease;
}

.navbar .nav > li > a:hover,
.navbar .nav > li > a:focus,
.navbar .nav > .active > a {
  color: var(--airocs-ink) !important;
  background: linear-gradient(180deg, rgba(0, 140, 69, 0.08), transparent) !important;
}

.navbar .nav > li > a:hover::after,
.navbar .nav > li > a:focus::after,
.navbar .nav > .active > a::after {
  opacity: 1;
  transform: scaleX(1);
}

.nav-toggle {
  background: linear-gradient(135deg, var(--airocs-green), #087b91) !important;
  box-shadow: 0 8px 20px rgba(0, 140, 69, 0.2);
}

/* Core surfaces and typography */
.page-header {
  margin: 12px 0 24px;
  padding: 0 0 12px;
  border-bottom: 1px solid var(--airocs-line);
}

.page-header h3,
.section-pad > h3,
#main h3 {
  position: relative;
  margin-top: 0;
  color: var(--airocs-ink);
  font-size: 25px;
  font-weight: 760;
  line-height: 1.25;
}

.page-header h3::after,
#main > .row-fluid h3::after {
  display: block;
  width: 44px;
  height: 3px;
  margin-top: 10px;
  content: "";
  border-radius: 999px;
  background: linear-gradient(90deg, var(--airocs-green), var(--airocs-cyan));
}

.section-pad {
  padding: 12px 0 18px !important;
}

.hero-intro,
.hero-research,
.feature,
.person-card,
.proj-item,
.pub-item,
.news-item,
.course-card,
.contact-card,
.resource-box,
.callout,
.tile {
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  border: 1px solid var(--airocs-line) !important;
  border-radius: var(--airocs-radius) !important;
  background: var(--airocs-card) !important;
  box-shadow: var(--airocs-shadow) !important;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.hero-intro::before,
.hero-research::before,
.feature::before,
.person-card::before,
.proj-item::before,
.pub-item::before,
.news-item::before,
.course-card::before,
.contact-card::before,
.resource-box::before,
.callout::before,
.tile::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
  content: "";
  background: linear-gradient(180deg, var(--airocs-green), var(--airocs-cyan));
  opacity: 0.75;
}

.feature:hover,
.person-card:hover,
.proj-item:hover,
.pub-item:hover,
.news-item:hover,
.course-card:hover,
.contact-card:hover,
.tile:hover {
  border-color: rgba(0, 140, 69, 0.24) !important;
  box-shadow: var(--airocs-shadow-hover) !important;
  transform: translateY(-4px);
}

.hero-intro,
.hero-research {
  padding: 28px 30px !important;
}

.hero-intro {
  background:
    radial-gradient(circle at 94% 0%, rgba(16, 168, 189, 0.09), transparent 30%),
    var(--airocs-card) !important;
}

.feature {
  min-height: 235px;
  padding: 24px !important;
}

.feature h4 {
  color: var(--airocs-ink);
  font-size: 20px;
  font-weight: 740;
}

.feature:nth-child(2n)::before,
.span4:nth-child(2n) .feature::before {
  background: linear-gradient(180deg, var(--airocs-cyan), var(--airocs-red));
}

.home-section-heading {
  max-width: 760px;
  margin: 52px 0 24px;
}

.home-section-heading.compact {
  margin-top: 0;
}

.section-kicker {
  display: block;
  margin-bottom: 7px;
  color: var(--airocs-green);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.home-section-heading h3 {
  margin: 0 0 8px !important;
  font-size: 29px !important;
}

.home-section-heading h3::after {
  display: none !important;
}

.home-section-heading p {
  margin: 0;
  color: var(--airocs-muted);
  font-size: 16px;
}

.research-directions .feature {
  min-height: 285px;
  padding-top: 68px !important;
}

.feature-index {
  position: absolute;
  top: 22px;
  right: 22px;
  color: rgba(0, 140, 69, 0.18);
  font-size: 36px;
  font-weight: 850;
  letter-spacing: -0.06em;
  line-height: 1;
}

.research-link {
  position: absolute;
  right: 24px;
  bottom: 22px;
  left: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 13px;
  border-top: 1px solid var(--airocs-line);
  color: var(--airocs-green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.research-link:hover,
.research-link:focus {
  text-decoration: none;
}

.research-link span {
  font-size: 20px;
  transition: transform 180ms ease;
}

.research-link:hover span,
.research-link:focus span {
  transform: translateX(4px);
}

.home-link-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin: 28px 0 58px;
  border: 1px solid var(--airocs-line);
  border-radius: 17px;
  background: var(--airocs-line);
  box-shadow: 0 14px 38px rgba(12, 38, 56, 0.08);
}

.home-link-strip a {
  position: relative;
  display: block;
  padding: 20px 22px;
  color: var(--airocs-ink);
  background: rgba(255, 255, 255, 0.93);
  text-decoration: none;
  transition: color 180ms ease, background 180ms ease;
}

.home-link-strip a::after {
  position: absolute;
  top: 50%;
  right: 18px;
  content: "→";
  color: var(--airocs-green);
  font-size: 20px;
  transform: translateY(-50%);
  transition: transform 180ms ease;
}

.home-link-strip a:hover,
.home-link-strip a:focus {
  color: #fff;
  background: linear-gradient(135deg, var(--airocs-green), #087f93);
}

.home-link-strip a:hover::after,
.home-link-strip a:focus::after {
  color: #fff;
  transform: translate(4px, -50%);
}

.link-strip-label {
  display: block;
  margin-bottom: 4px;
  color: var(--airocs-muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.home-link-strip a:hover .link-strip-label,
.home-link-strip a:focus .link-strip-label {
  color: rgba(255, 255, 255, 0.75);
}

.home-link-strip strong {
  display: block;
  padding-right: 28px;
  font-size: 15px;
}

.home-news {
  margin-bottom: 34px;
}

.news-preview {
  position: relative;
  display: block;
  min-height: 190px;
  box-sizing: border-box;
  padding: 22px;
  border: 1px solid var(--airocs-line);
  border-radius: var(--airocs-radius);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--airocs-shadow);
  color: var(--airocs-slate);
  text-decoration: none;
  transition: transform 220ms ease, box-shadow 220ms ease, border-color 220ms ease;
}

.news-preview:hover,
.news-preview:focus {
  color: var(--airocs-slate);
  border-color: rgba(0, 140, 69, 0.28);
  box-shadow: var(--airocs-shadow-hover);
  text-decoration: none;
  transform: translateY(-4px);
}

.news-preview-year {
  float: right;
  color: var(--airocs-muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.news-preview strong {
  display: block;
  margin: 20px 0 10px;
  color: var(--airocs-ink);
  font-size: 17px;
  line-height: 1.38;
}

.news-preview > span:last-child {
  display: block;
  color: var(--airocs-muted);
  font-size: 13px;
  line-height: 1.55;
}

.home-news-action {
  margin: 22px 0 0;
  text-align: right;
}

.person-card,
.proj-item,
.pub-item,
.news-item,
.course-card,
.contact-card,
.resource-box,
.callout,
.tile-body {
  padding: 22px 24px !important;
}

.person-card {
  min-height: 152px;
}

.person-name,
.proj-title,
.pub-title,
.news-title,
.course-title {
  margin-bottom: 5px;
  color: var(--airocs-ink) !important;
  font-size: 18px !important;
  font-weight: 760 !important;
  line-height: 1.35;
}

.person-meta,
.proj-meta,
.pub-meta,
.news-meta,
.course-meta,
.muted-small,
.meta {
  color: var(--airocs-muted) !important;
}

.resource-box ul {
  margin-left: 0;
  list-style: none;
}

.resource-box li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--airocs-line);
}

.resource-box li:last-child {
  border-bottom: 0;
}

.resource-status {
  flex: 0 0 auto;
  padding: 3px 7px;
  border-radius: 999px;
  color: #08733c;
  background: rgba(0, 140, 69, 0.1);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.section-pad > .row-fluid,
.pub-list > .pub-item,
.news-list > .news-item {
  margin-bottom: 22px !important;
}

.thumbnail {
  overflow: hidden;
  padding: 5px !important;
  border: 1px solid rgba(11, 37, 56, 0.13) !important;
  border-radius: 17px !important;
  background: rgba(255, 255, 255, 0.94) !important;
  box-shadow: 0 12px 30px rgba(10, 37, 54, 0.11) !important;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.thumbnail:hover,
.thumbnail:focus {
  border-color: rgba(0, 140, 69, 0.35) !important;
  box-shadow: 0 18px 38px rgba(9, 40, 57, 0.16) !important;
  transform: translateY(-3px);
}

.person-photo {
  width: 100% !important;
  height: 150px !important;
  border-radius: 12px;
  object-fit: cover;
  object-position: center;
}

.person-photo[src$="airocs-logo.png"] {
  box-sizing: border-box;
  padding: 24px 8px;
  background: #fff;
  object-fit: contain;
}

.proj-thumb,
.thumb,
.tile img {
  border-radius: 14px;
}

/* Home showcase */
#main-carousel {
  overflow: hidden;
  margin-bottom: 28px !important;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 24px;
  background: var(--airocs-navy);
  box-shadow: 0 26px 70px rgba(9, 39, 58, 0.2);
}

#main-carousel .carousel-image {
  height: min(52vw, 500px) !important;
  min-height: 330px;
  filter: saturate(0.9) contrast(1.04);
  transition: filter 500ms ease, transform 7s ease;
}

#main-carousel .item.active .carousel-image {
  transform: scale(1.035);
}

#main-carousel .carousel-caption {
  right: 28px;
  bottom: 28px;
  left: 28px;
  padding: 20px 24px !important;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 16px !important;
  background: linear-gradient(90deg, rgba(4, 22, 34, 0.9), rgba(4, 22, 34, 0.56)) !important;
  backdrop-filter: blur(12px);
}

#main-carousel .carousel-caption h4 {
  color: #fff;
  font-size: 23px;
}

#main-carousel .carousel-caption p {
  color: #d9e8ee;
  font-size: 15px;
}

.carousel-control {
  top: 50% !important;
  width: 42px !important;
  height: 42px !important;
  margin-top: -21px !important;
  border: 1px solid rgba(255, 255, 255, 0.45) !important;
  background: rgba(3, 25, 38, 0.55) !important;
  font-size: 33px !important;
  line-height: 36px !important;
  opacity: 0.8 !important;
  backdrop-filter: blur(8px);
}

/* Controls, buttons, filters, labels */
.people-toolbar,
.pub-toolbar,
.news-toolbar,
.gallery-toolbar,
.teach-toolbar,
.filters {
  margin-bottom: 28px !important;
  padding: 14px !important;
  border: 1px solid var(--airocs-line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 10px 30px rgba(12, 38, 56, 0.07);
  backdrop-filter: blur(10px);
}

input[type="text"],
input[type="search"],
select,
textarea {
  min-height: 42px;
  box-sizing: border-box;
  border: 1px solid rgba(11, 37, 56, 0.16) !important;
  border-radius: 10px !important;
  box-shadow: none !important;
  font-family: inherit;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

input[type="text"]:focus,
input[type="search"]:focus,
select:focus,
textarea:focus {
  border-color: var(--airocs-green) !important;
  box-shadow: 0 0 0 3px rgba(0, 140, 69, 0.11) !important;
}

.btn {
  padding: 9px 16px !important;
  color: var(--airocs-ink) !important;
  border: 1px solid rgba(11, 37, 56, 0.14) !important;
  border-radius: 10px !important;
  background: #fff !important;
  background-image: none !important;
  box-shadow: 0 7px 18px rgba(10, 37, 54, 0.08) !important;
  font-weight: 720;
  text-shadow: none !important;
  transition: transform 180ms ease, box-shadow 180ms ease, color 180ms ease, background 180ms ease;
}

.btn:hover,
.btn:focus {
  color: #fff !important;
  border-color: var(--airocs-green) !important;
  background: linear-gradient(135deg, var(--airocs-green), #087f93) !important;
  box-shadow: 0 12px 24px rgba(0, 140, 69, 0.2) !important;
  transform: translateY(-2px);
}

.btn-primary,
.btn-success {
  color: #fff !important;
  border-color: transparent !important;
  background: linear-gradient(135deg, var(--airocs-green), #087f93) !important;
}

.label {
  padding: 5px 9px !important;
  border-radius: 999px !important;
  background: rgba(8, 123, 145, 0.1) !important;
  color: #086c7e !important;
  font-size: 10px !important;
  letter-spacing: 0.035em;
  text-shadow: none !important;
  text-transform: uppercase;
}

.label-success {
  color: #08733c !important;
  background: rgba(0, 140, 69, 0.11) !important;
}

.label-important {
  color: #a10732 !important;
  background: rgba(207, 10, 60, 0.1) !important;
}

/* Gallery and modal */
.tile {
  padding: 6px !important;
}

.thumb-wrap {
  overflow: hidden;
  border-radius: 13px;
  background: #e8f0f3;
}

.thumb-wrap img,
.tile img {
  transition: transform 500ms cubic-bezier(0.2, 0.8, 0.2, 1), filter 300ms ease;
}

.tile:hover .thumb-wrap img,
.tile:hover > img {
  filter: saturate(1.08);
  transform: scale(1.035);
}

.modal {
  border: 1px solid rgba(255, 255, 255, 0.16) !important;
  border-radius: 18px !important;
  box-shadow: 0 32px 90px rgba(3, 19, 30, 0.38) !important;
}

/* Footer */
#footer {
  position: relative;
  overflow: hidden;
  margin-top: 70px !important;
  padding: 34px 0 30px !important;
  border-top: 3px solid transparent !important;
  border-image: linear-gradient(90deg, var(--airocs-green), var(--airocs-cyan), var(--airocs-red)) 1 !important;
  background:
    radial-gradient(circle at 50% -30%, rgba(16, 168, 189, 0.2), transparent 36%),
    linear-gradient(130deg, #06131e, #09283a 58%, #071a28) !important;
}

#footer::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 30px 30px;
  pointer-events: none;
}

#footer .container-fluid {
  position: relative;
  z-index: 1;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

#footer h3 {
  margin-top: 8px !important;
  color: #91e7bc !important;
  border-bottom-color: rgba(255, 255, 255, 0.11) !important;
  font-family: inherit !important;
  font-size: 13px !important;
  font-weight: 800 !important;
  letter-spacing: 0.12em;
}

#footer p,
#footer address {
  color: #b7c9d3 !important;
  font-size: 13px !important;
}

#footer a {
  color: #7bd9e5;
}

#footer a:has(img) {
  display: block;
  width: 210px;
  height: 72px;
  overflow: hidden;
  margin: 24px auto 0;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

#footer a img {
  width: 100% !important;
  height: 100% !important;
  margin: 0 !important;
  object-fit: cover;
  object-position: center;
}

/* Motion */
.js-enabled .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 640ms ease, transform 640ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

.hero-brand {
  animation: airocs-hero-in 700ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

@keyframes airocs-hero-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes airocs-grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 56px 28px, 56px 28px; }
}

/* Responsive layout */
@media (max-width: 979px) {
  body {
    padding-top: 12px !important;
  }

  .container {
    width: calc(100% - 28px);
  }

  .hero-logo-link {
    flex-basis: 190px;
    width: 190px;
    height: 68px;
  }

  .jumbotron.subhead {
    padding: 24px 28px !important;
  }

  .navbar .nav > li > a {
    font-size: 10px;
    letter-spacing: 0.02em;
  }
}

@media (max-width: 767px) {
  body {
    padding: 0 !important;
  }

  .container {
    width: calc(100% - 20px);
  }

  .jumbotron.subhead {
    min-height: 0;
    padding: 22px 20px 26px !important;
    border-radius: 0;
  }

  .hero-brand {
    display: block;
  }

  .hero-logo-link {
    width: 178px;
    height: 60px;
    margin-bottom: 18px;
  }

  .jumbotron.subhead h1 {
    padding-right: 0;
    font-size: 23px !important;
  }

  .page-chip {
    position: static;
    margin-top: 13px;
  }

  .masthead {
    top: 0;
    margin-bottom: 22px;
  }

  .masthead .navbar-inner {
    min-height: 55px;
    border-radius: 0 0 14px 14px !important;
  }

  .masthead .nav {
    display: none !important;
    flex-direction: column;
    margin-top: 46px !important;
    border: 0 !important;
    border-radius: 12px !important;
    box-shadow: none;
  }

  .masthead .nav.open {
    display: flex !important;
  }

  .masthead .nav > li {
    width: 100% !important;
    border-top: 1px solid var(--airocs-line) !important;
  }

  .masthead .nav > li > a {
    justify-content: flex-start;
    min-height: 44px;
    padding: 0 16px !important;
  }

  .masthead .nav > li > a::after {
    top: 20%;
    right: auto;
    bottom: 20%;
    left: 0;
    width: 3px;
    height: auto;
    transform: scaleY(0.35);
  }

  .masthead .nav > .active > a::after,
  .masthead .nav > li > a:hover::after,
  .masthead .nav > li > a:focus::after {
    transform: scaleY(1);
  }

  .hero-intro,
  .hero-research,
  .feature,
  .person-card,
  .proj-item,
  .pub-item,
  .news-item,
  .course-card,
  .contact-card,
  .resource-box,
  .callout,
  .tile-body {
    padding: 19px !important;
  }

  .feature {
    min-height: 0;
    margin-bottom: 16px;
  }

  .research-directions .feature {
    min-height: 265px;
  }

  .home-link-strip {
    grid-template-columns: 1fr;
  }

  .news-preview {
    min-height: 0;
    margin-bottom: 16px;
  }

  .section-pad > .row-fluid {
    margin-bottom: 28px !important;
  }

  .section-pad > .row-fluid > [class*="span"] {
    width: 100%;
    margin-left: 0;
  }

  .section-pad > .row-fluid > .span2 {
    max-width: 150px;
    margin-bottom: 12px;
  }

  #main-carousel .carousel-image {
    min-height: 255px;
    height: 62vw !important;
  }

  #main-carousel .carousel-caption {
    right: 14px;
    bottom: 14px;
    left: 14px;
    padding: 14px 16px !important;
  }

  #main-carousel .carousel-caption h4 {
    font-size: 18px;
  }

  #footer .span5,
  #footer .span2 {
    margin-bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .js-enabled .reveal {
    opacity: 1;
    transform: none;
  }
}