.research-ledger-header {
  padding: 0;
  text-align: left;
  color: #242d35;
  background: #f3f0e8;
  background-image: none;
}

.main-content h1,
.main-content h2,
.main-content h3,
.main-content h4,
.main-content h5,
.main-content h6 {
  color: #8b432d;
}

.ledger-navigation,
.ledger-masthead {
  width: min(100% - 3rem, 76rem);
  margin-inline: auto;
}

.ledger-navigation {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  min-height: 4.25rem;
  border-bottom: 1px solid #c9c4b6;
}

.ledger-brand {
  color: #26333b;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.ledger-brand:hover {
  color: #7f432d;
  text-decoration: none;
}

.ledger-primary-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .1rem 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ledger-primary-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  color: #3d4a51;
  font-size: .9rem;
  line-height: 1.25;
  text-decoration: none;
}

.ledger-primary-nav a:hover {
  color: #7f432d;
  text-decoration: underline;
  text-decoration-thickness: .12rem;
  text-underline-offset: .3rem;
}

.ledger-brand:focus-visible,
.ledger-primary-nav a:focus-visible {
  outline: 3px solid #1260b0;
  outline-offset: 4px;
}

.ledger-masthead {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 3rem;
  align-items: center;
  padding-block: 2.4rem 2.7rem;
}

.ledger-title-block {
  padding-left: 1.35rem;
  border-left: 5px solid #b76335;
}

.ledger-kicker {
  margin: 0 0 .55rem;
  color: #687069;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.research-ledger-header .project-name {
  margin: 0;
  color: #242d35;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.15rem, 5vw, 3.65rem);
  font-weight: 700;
  letter-spacing: -.045em;
  line-height: 1;
}

.research-ledger-header .project-tagline {
  max-width: 48rem;
  margin: .85rem 0 0;
  color: #626860;
  font-size: 1.05rem;
  font-weight: 400;
  line-height: 1.65;
  opacity: 1;
}

.ledger-edition {
  display: grid;
  gap: .32rem;
  min-width: 10.5rem;
  padding: 1rem 0 1rem 1.45rem;
  border-left: 1px solid #c9c4b6;
}

.ledger-edition span {
  color: #747870;
  font-size: .78rem;
  letter-spacing: .04em;
  line-height: 1.35;
}

.ledger-edition strong {
  color: #30383c;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.18rem;
  line-height: 1.25;
}

@media screen and (max-width: 70rem) {
  .ledger-navigation {
    grid-template-columns: 1fr;
    gap: .3rem;
    padding-block: .85rem .55rem;
  }

  .ledger-primary-nav ul {
    justify-content: flex-start;
  }
}

@media screen and (max-width: 48rem) {
  .ledger-navigation,
  .ledger-masthead {
    width: min(100% - 2rem, 76rem);
  }

  .ledger-primary-nav ul {
    gap: 0 1rem;
  }

  .ledger-primary-nav a {
    min-height: 2.6rem;
    font-size: .86rem;
  }

  .ledger-masthead {
    grid-template-columns: 1fr;
    gap: 1.25rem;
    padding-block: 1.75rem 2rem;
  }

  .ledger-title-block {
    padding-left: 1rem;
    border-left-width: 4px;
  }

  .research-ledger-header .project-name {
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .research-ledger-header .project-tagline {
    font-size: 1rem;
  }

  .ledger-edition {
    grid-template-columns: auto auto 1fr;
    align-items: baseline;
    min-width: 0;
    padding: .85rem 0 0;
    border-top: 1px solid #c9c4b6;
    border-left: 0;
  }
}

@media screen and (max-width: 28rem) {
  .ledger-edition {
    grid-template-columns: 1fr;
  }
}