:root {
  --accent-blue: #017cbf;
  --accent-blue-ink: #00679f;
  --accent-blue-hover: #005583;
  --accent-gold: #d4a72c;
  --stripe-width: 20px;
}
* {
  box-sizing:border-box
}
html {
  scroll-behavior:smooth
}
body {
  margin:0;
  background:#f6f6f1;
  color:#253239;
  font:16px/1.65 Arial,Helvetica,sans-serif
}
a {
  color:inherit
}
a:focus-visible,summary:focus-visible {
  outline:3px solid var(--accent-blue);
  outline-offset:5px
}
.wrap {
  width:min(1200px,90%);
  margin:auto
}
header {
  border-top:7px solid var(--accent-blue);
  border-bottom:4px solid var(--accent-gold);
  background:#fffffb
}
.head {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:25px 0
}
.brand {
  font-size:29px;
  font-weight:900;
  letter-spacing:-1.5px;
  text-decoration:none
}
.wordmark {
  display:inline-block;
  background:#000;
  color:#fff;
  padding:0.2em 0.55em;
  line-height:1.15;
  font-weight:900;
  white-space:nowrap
}
nav {
  display:flex;
  gap:28px;
  font-size:14px
}
nav a {
  text-decoration:none
}
nav a:hover {
  text-decoration:underline
}
.intro {
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:65px;
  align-items:end;
  padding:60px 0 35px
}
h1 {
  font-size:clamp(45px,6vw,76px);
  line-height:1.03;
  letter-spacing:-3px;
  margin:15px 0
}
h1 em {
  font-style:normal;
  color:var(--accent-blue)
}
.intro p {
  max-width:430px;
  color:#5a6a70
}
.hero {
  margin:0;
  background:#26353d
}
.hero img {
  display:block;
  width:100%;
  height:490px;
  object-fit:cover;
  object-position:center 70%
}
.hero figcaption {
  display:flex;
  justify-content:space-between;
  padding:18px 24px;
  color:white;
  border-bottom:7px solid var(--accent-blue);
  box-shadow:0 4px var(--accent-gold);
  font-size:14px
}
.hero small {
  color:#c3cdd0
}
.section-head {
  display:flex;
  justify-content:space-between;
  align-items:end;
  border-bottom:1px solid #bdc7c9;
  padding-bottom:15px;
  margin:65px 0 25px
}
h2 {
  font-size:29px;
  letter-spacing:-1px;
  margin:3px 0
}
.section-head p {
  font:12px monospace;
  color:#65757c
}
.collection {
  display:grid;
  grid-template-columns:230px 1fr;
  gap:40px
}
.index {
  border-top:3px solid #26353d
}
.index a {
  display:flex;
  justify-content:space-between;
  padding:17px 0;
  border-bottom:1px solid #c5cecf;
  text-decoration:none;
  font-size:14px;
  color:var(--accent-blue-ink)
}
.index p,.note {
  font-size:13px;
  color:#617178
}
.grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px 24px
}
.photo {
  margin:0
}
.photo img {
  display:block;
  width:100%;
  aspect-ratio:4/3;
  object-fit:contain;
  background:#e3e7e6
}
.photo a:hover img {
  opacity:.85
}
.photo figcaption {
  padding-top:12px
}
.meta {
  display:flex;
  justify-content:space-between;
  gap:10px;
  align-items:center
}
.number {
  font:bold 13px monospace;
  padding:4px 8px;
  background:#e1e8e8
}
.photo h3 {
  font-size:16px;
  margin:6px 0 2px
}
.photo p {
  font-size:12px;
  color:#617178;
  margin:0
}
.note {
  margin-top:25px
}
.about {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:80px;
  padding:15px 0 60px
}
.about p {
  color:#576b74
}
.about a {
  color:var(--accent-blue-ink)
}
details {
  border-top:1px solid #bec9ca;
  padding:15px 0
}
summary {
  cursor:pointer;
  font-weight:bold
}
footer {
  border-top:5px solid var(--accent-blue);
  box-shadow:0 -4px var(--accent-gold);
  background:repeating-linear-gradient(#dce2e1 0 2px,#e9ecea 2px 5px);
  padding:25px 0;
  font-size:12px
}
.foot {
  display:flex;
  justify-content:space-between;
  gap:20px
}
.skip {
  position:absolute;
  left:-9999px
}
.skip:focus {
  left:10px;
  top:10px;
  padding:12px;
  background:white;
  z-index:9
}
section {
  scroll-margin-top:25px
}
@media(max-width:750px) {
  .head {
    align-items:start;
    flex-direction:column;
    gap:15px
  }
  nav {
    gap:20px
  }
  .intro {
    grid-template-columns:1fr;
    gap:12px;
    padding-top:35px
  }
  .hero img {
    height:320px
  }
  .hero figcaption {
    flex-direction:column;
    gap:5px
  }
  .collection {
    grid-template-columns:1fr;
    gap:18px
  }
  .index {
    display:flex;
    gap:25px;
    flex-wrap:wrap
  }
  .index a {
    gap:15px
  }
  .index p {
    width:100%;
    margin:0
  }
  .about {
    grid-template-columns:1fr;
    gap:20px
  }
  .section-head p {
    display:none
  }
  .foot {
    flex-direction:column;
    gap:4px
  }
}
@media(max-width:450px) {
  .grid {
    grid-template-columns:1fr
  }
  .hero img {
    height:260px
  }
  h1 {
    letter-spacing:-2px
  }
}
@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior:auto
  }
}
.empty-feature {
  padding:65px 35px;
  background:#26353d;
  color:#fff;
  border-bottom:8px solid var(--accent-blue);
  box-shadow:0 4px var(--accent-gold)
}
.empty-feature h2 {
  font-size:clamp(30px,4vw,50px)
}
.empty-feature p {
  color:#d0dadd
}
.empty-gallery {
  padding:55px 25px;
  border:1px solid #c5cecf;
  text-align:center;
  background:#ecefeb
}
.empty-gallery h3 {
  font-size:24px;
  margin:12px 0
}
.empty-gallery p {
  color:#617178
}
.about {
  grid-template-columns:1fr;
  gap:0
}
.about>div {
  max-width:650px
}
.intro {
  grid-template-columns:1fr;
  gap:8px
}
.intro h1 {
  font-size:clamp(30px,6vw,76px);
  white-space:nowrap
}
.intro p {
  max-width:none;
  margin-top:0
}
/* Uniform previews;
full photographs open through their links. */
                                                                                                                                                      .photo img {
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:4/3;
  object-fit:cover;
  object-position:center
}
.grid {
  align-items:start
}
.empty-feature .photo {
  max-width:480px;
  margin-top:20px
}
.empty-feature .photo p {
  color:#d0dadd
}
.empty-feature .photo a {
  display:block
}
/* Featured photograph keeps its full proportions beside its caption. */
                                                                                                                                                                #featured {
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);
  gap:35px;
  align-items:center
}
#featured .photo {
  width:100%;
  max-width:none;
  margin:0;
  justify-self:end
}
#featured .photo img {
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:auto;
  object-fit:contain
}
#featured h3 {
  margin:20px 0 4px;
  font-size:20px
}
#featured .featured-info p {
  margin:0;
  color:#d0dadd
}
.visually-hidden {
  position:absolute;
  width:1px;
  height:1px;
  padding:0;
  margin:-1px;
  overflow:hidden;
  clip-path:inset(50%);
  white-space:nowrap;
  border:0
}
@media(max-width:650px) {
  #featured {
    grid-template-columns:1fr;
    gap:20px
  }
}
/* Library previews preserve the full image inside a 4:3 frame. */
                                                                                                                                                                              .grid .photo img {
  width:100%;
  height:auto;
  aspect-ratio:4/3;
  object-fit:contain;
  background:#ecefeb
}
.photo-metadata {
  margin:12px 0 0;
  font-size:13px;
  line-height:1.5
}
.photo-metadata>div {
  display:grid;
  grid-template-columns:105px minmax(0,1fr);
  gap:12px;
  padding:5px 0;
  border-bottom:1px solid #d8dfdd
}
.photo-metadata dt {
  color:#5b6c74
}
.photo-metadata dd {
  margin:0;
  overflow-wrap:anywhere
}
#featured .photo-metadata dt {
  color:#bfccd1
}
#featured .photo-metadata>div {
  border-color:#526168
}
.owner-group+.owner-group {
  margin-top:45px
}
.owner-heading {
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap:15px;
  margin-bottom:18px
}
.owner-heading h3 {
  font-size:20px;
  margin:0
}
.owner-heading span {
  font-size:12px;
  color:#617178;
  white-space:nowrap
}
.index a {
  gap:12px
}
.index a span {
  flex-shrink:0
}
.index .all-photos {
  font-size:20px;
  font-weight:700;
  color:#fff;
  background:var(--accent-blue-ink);
  padding:18px 16px;
  margin:12px 0;
  border-bottom:4px solid var(--accent-gold);
  align-items:center
}
.index .all-photos span {
  font-size:14px;
  background:#fff;
  color:var(--accent-blue-ink);
  padding:2px 8px;
  border-radius:2px
}
.index .all-photos:hover {
  background:var(--accent-blue-hover)
}
.index .all-photos:focus-visible {
  outline-offset:4px
}
@media(max-width:750px) {
  .index .all-photos {
    flex-basis:100%;
    margin-bottom:0
  }
}
/* Stronger blue-and-yellow livery bands. */
                                                                                                                                                                                                                  header {
  border-top:var(--stripe-width) solid var(--accent-blue);
  border-bottom:var(--stripe-width) solid var(--accent-gold)
}
.empty-feature {
  border-bottom:var(--stripe-width) solid var(--accent-blue);
  box-shadow:0 var(--stripe-width) var(--accent-gold)
}
footer {
  border-top:var(--stripe-width) solid var(--accent-blue);
  box-shadow:0 calc(-1 * var(--stripe-width)) var(--accent-gold)
}
.index .all-photos {
  border-bottom-width:8px
}
/* Livery stripes always run blue above yellow. */
                                                                                                                                                                                                                          .index .all-photos {
  background:#26353d;
  color:#fff;
  border-bottom:0;
  padding-bottom:calc(18px + 2 * var(--stripe-width));
  background-image:linear-gradient(to bottom,var(--accent-blue) 0 50%,var(--accent-gold) 50% 100%);
  background-size:100% calc(2 * var(--stripe-width));
  background-position:left bottom;
  background-repeat:no-repeat
}
.index .all-photos:hover {
  background-color:#33454f
}
.index .all-photos span {
  background:#e6eae8;
  color:#26353d
}
footer {
  border-top:0;
  box-shadow:none;
  background-image:linear-gradient(to bottom,var(--accent-blue) 0 50%,var(--accent-gold) 50% 100%),repeating-linear-gradient(#dce2e1 0 2px,#e9ecea 2px 5px);
  background-size:100% calc(2 * var(--stripe-width)),auto;
  background-position:top left,top left;
  background-repeat:no-repeat,repeat;
  padding-top:calc(25px + 2 * var(--stripe-width))
}
.back-to-photos {
  display:inline-block;
  margin-top:25px;
  padding:10px 16px;
  border:1px solid #b7c3c6;
  background:#e6eae8;
  color:#26353d;
  font-size:14px;
  font-weight:700;
  text-decoration:none
}
.back-to-photos:hover {
  background:#d8dfdd
}
.back-to-photos:focus-visible {
  outline:3px solid var(--accent-blue);
  outline-offset:4px
}