:root{
  color-scheme:light;
  --page:#fbfaf6;
  --surface:#ffffff;
  --ink:#171b1a;
  --muted:#66706d;
  --faint:#929b98;
  --line:#dddeda;
  --accent:#9a6a2f;
  --world:#315f82;
  --science:#2f6b57;
  --foundation:#7b4f65;
  --pending:#f2f1ec;
}

:root[data-theme="dark"]{
  color-scheme:dark;
  --page:#121514;
  --surface:#191d1b;
  --ink:#f1eee6;
  --muted:#b4bbb7;
  --faint:#8b9490;
  --line:#343a37;
  --accent:#d0a15f;
  --world:#8cb7d5;
  --science:#82bda6;
  --foundation:#c79bb0;
  --pending:#202522;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:system-ui,-apple-system,"Noto Sans KR",sans-serif;
}

a{
  color:inherit;
}

.site-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  padding:0 6%;
  border-bottom:1px solid var(--line);
  background:var(--surface);
}

.site-nav .brand{
  font-size:24px;
  font-weight:750;
  text-decoration:none;
}

.site-nav>div{
  display:flex;
  align-items:center;
  gap:30px;
}

.site-nav>div>a{
  text-decoration:none;
  text-align:left;
}

.site-nav span{
  display:block;
  font-size:13px;
  font-weight:700;
}

.site-nav small{
  display:block;
  margin-top:3px;
  color:var(--faint);
  font-size:9px;
  letter-spacing:.14em;
  text-transform:uppercase;
}

main{
  width:min(1180px,calc(100% - 40px));
  margin:0 auto;
  padding:38px 0 72px;
}

.breadcrumb{
  margin:0 0 34px;
  color:var(--faint);
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
}

.breadcrumb a{
  text-decoration:none;
}

.page-head{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:36px;
  align-items:end;
  padding-bottom:38px;
  border-bottom:1px solid var(--line);
}

.eyebrow,
.track-label{
  margin:0 0 9px;
  color:var(--accent);
  font-size:11px;
  font-weight:700;
  letter-spacing:.18em;
  text-transform:uppercase;
}

h1{
  margin:0;
  font-family:Georgia,"Noto Serif KR",serif;
  font-size:46px;
  font-weight:500;
}

.lead{
  max-width:680px;
  margin:14px 0 0;
  color:var(--muted);
  font-family:Georgia,"Noto Serif KR",serif;
  font-size:17px;
  line-height:1.75;
}

.theme-control{
  display:inline-flex;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:5px;
  background:var(--surface);
}

.theme-control button{
  min-width:58px;
  min-height:38px;
  padding:8px 11px;
  border:0;
  border-left:1px solid var(--line);
  background:transparent;
  color:var(--muted);
  font:700 12px/1 system-ui,-apple-system,"Noto Sans KR",sans-serif;
  cursor:pointer;
}

.theme-control button:first-child{
  border-left:0;
}

.theme-control button[aria-pressed="true"]{
  background:var(--accent);
  color:var(--surface);
}

.section-index{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}

.section-index a{
  color:var(--muted);
  font-size:13px;
  font-weight:700;
  text-decoration:none;
}

.section-index a:hover,
.section-index a:focus-visible{
  color:var(--accent);
}

.track{
  display:grid;
  grid-template-columns:270px minmax(0,1fr);
  gap:40px;
  padding:48px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:88px;
}

.track-head{
  display:grid;
  grid-template-columns:42px minmax(0,1fr);
  gap:16px;
  align-items:start;
}

.track-number{
  color:var(--accent);
  font-family:Georgia,serif;
  font-size:17px;
}

.track-label{
  margin-top:2px;
  color:var(--faint);
}

h2{
  margin:0;
  font-family:Georgia,"Noto Serif KR",serif;
  font-size:27px;
  font-weight:600;
}

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

.route{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:94px;
  padding:20px 4px;
  border-bottom:1px solid var(--line);
  text-decoration:none;
}

.route strong,
.route small{
  display:block;
}

.route strong{
  margin-bottom:7px;
  font-family:Georgia,"Noto Serif KR",serif;
  font-size:18px;
}

.route small{
  color:var(--muted);
  font-size:13px;
  line-height:1.55;
}

.route b{
  flex:0 0 auto;
  color:var(--accent);
  font-size:20px;
}

.route-primary strong{
  color:var(--world);
}

.route-science strong{
  color:var(--science);
}

.route-foundation strong{
  color:var(--foundation);
}

a.route:hover,
a.route:focus-visible{
  background:var(--surface);
  outline:none;
}

.route-pending{
  background:var(--pending);
}

.route-pending em{
  flex:0 0 auto;
  color:var(--faint);
  font-size:11px;
  font-style:normal;
  font-weight:700;
}

@media(max-width:760px){
  .site-nav{
    align-items:flex-start;
    flex-direction:column;
    gap:14px;
    padding:17px 20px;
  }

  .site-nav>div{
    display:grid;
    grid-template-columns:repeat(5,minmax(0,1fr));
    width:100%;
    gap:7px;
  }

  .site-nav>div>a{
    min-width:0;
    text-align:center;
  }

  .site-nav span{
    font-size:11px;
    white-space:nowrap;
  }

  .site-nav small{
    overflow:hidden;
    font-size:7px;
    letter-spacing:.05em;
    text-overflow:ellipsis;
    white-space:nowrap;
  }

  main{
    width:min(100% - 28px,680px);
    padding-top:26px;
  }

  .breadcrumb{
    margin-bottom:24px;
  }

  .page-head{
    grid-template-columns:1fr;
    gap:24px;
    padding-bottom:28px;
  }

  h1{
    font-size:36px;
  }

  .lead{
    font-size:15px;
  }

  .theme-control{
    width:100%;
  }

  .theme-control button{
    flex:1 1 0;
  }

  .section-index{
    gap:12px 20px;
  }

  .track{
    grid-template-columns:1fr;
    gap:24px;
    padding:36px 0;
  }

  .route{
    min-height:88px;
    padding:18px 2px;
  }

  .route strong{
    font-size:17px;
  }
}

@media(max-width:430px){
  .route{
    align-items:flex-start;
    gap:16px;
  }

  .route small{
    font-size:12px;
  }
}