:root {
  --navy: #0b1f33;
  --navy-2: #123957;
  --graphite: #25313b;
  --warm-white: #f7f8fa;
  --paper: #ffffff;
  --mist: #edf3f5;
  --teal: #167d83;
  --teal-dark: #0e5e65;
  --aqua: #a8dfe0;
  --slate: #607080;
  --line: #d7e0e7;
  --gold: #e6b85c;
  --shadow-sm: 0 0.35rem 1.2rem rgba(11, 31, 51, 0.07);
  --shadow-lg: 0 1.25rem 3rem rgba(11, 31, 51, 0.12);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  background:
    radial-gradient(circle at 12% 0%, rgba(168, 223, 224, 0.18), transparent 24rem),
    var(--warm-white);
  color: var(--graphite);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1.04rem;
  line-height: 1.7;
}

::selection {
  background: var(--aqua);
  color: var(--navy);
}

#quarto-content {
  background: transparent;
}

main.content {
  max-width: 1120px;
  padding: 2.25rem clamp(1.25rem, 4vw, 3.5rem) 5rem;
}

#quarto-document-content {
  min-width: 0;
}

h1, h2, h3, h4 {
  color: var(--navy);
  letter-spacing: -0.025em;
}

h1, h2, h3 {
  font-family: "Source Serif 4", Georgia, "Times New Roman", serif;
}

h1 {
  font-size: clamp(2.65rem, 7vw, 5.6rem);
  line-height: 0.98;
  margin: 0.75rem 0 1rem;
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.55rem);
  margin-top: 3.4rem;
  padding-bottom: 0.55rem;
  position: relative;
}

h2::after {
  background: var(--teal);
  bottom: 0;
  content: "";
  height: 3px;
  left: 0;
  position: absolute;
  width: 3.25rem;
}

h3 {
  font-size: 1.55rem;
  line-height: 1.15;
}

p, ul, ol, table {
  max-width: 72ch;
}

a {
  color: var(--teal-dark);
  text-underline-offset: 0.16em;
  transition: color 160ms ease, text-decoration-thickness 160ms ease;
}

a:hover {
  color: var(--navy);
  text-decoration-thickness: 0.14em;
}

:where(a, button, input, select, textarea):focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
}

.navbar {
  background: linear-gradient(100deg, var(--navy), var(--navy-2)) !important;
  box-shadow: 0 0.4rem 1.6rem rgba(11, 31, 51, 0.18);
  min-height: 4.25rem;
}

.navbar-container {
  gap: 0.7rem;
  padding-inline: clamp(1rem, 3vw, 2.5rem);
}

.navbar-brand-container {
  align-items: center;
  display: flex;
  gap: 0.3rem;
}

.navbar-brand {
  font-weight: 750;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.navbar-brand img,
.navbar-logo {
  height: 1.75rem;
  margin-right: 0.45rem;
  width: 1.75rem;
}

.navbar .nav-link,
.navbar .navbar-brand,
.navbar .navbar-toggler {
  transition: color 160ms ease, background-color 160ms ease;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus-visible,
.navbar .navbar-brand:hover {
  color: var(--aqua) !important;
}

.navbar .nav-link.active {
  color: white !important;
  font-weight: 750;
}

.dropdown-menu {
  border: 1px solid rgba(215, 224, 231, 0.9);
  border-radius: 0.75rem;
  box-shadow: var(--shadow-lg);
  padding: 0.45rem;
}

.dropdown-item {
  border-radius: 0.45rem;
  padding: 0.55rem 0.75rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: var(--mist);
  color: var(--navy);
}

@media (min-width: 992px) {
  .navbar .navbar-container > .navbar-brand-container {
    flex: 0 0 auto !important;
    margin-left: 0 !important;
    margin-right: 0.7rem !important;
    max-width: none !important;
    min-width: max-content !important;
    order: 0 !important;
    width: auto !important;
  }
}

/* The homepage is the front door: give it more visual presence than the archive pages. */
.page-home main.content {
  max-width: 1240px;
}

.page-home #TOC {
  display: none;
}

.page-home .page-columns {
  display: grid !important;
  grid-template-columns: minmax(0, 1fr) !important;
}

.page-home main.content {
  grid-column: 1 / -1 !important;
  max-width: none;
  width: auto !important;
}

.page-home #title-block-header {
  background:
    radial-gradient(circle at 88% 18%, rgba(168, 223, 224, 0.28), transparent 14rem),
    linear-gradient(135deg, var(--navy), var(--navy-2) 68%, #1c6c73);
  border-radius: 1.65rem;
  box-shadow: var(--shadow-lg);
  color: var(--warm-white);
  margin: 0 0 2.4rem;
  overflow: hidden;
  padding: clamp(2rem, 6vw, 4.8rem) clamp(1.5rem, 6vw, 5.5rem);
  position: relative;
}

.page-home #title-block-header::after {
  border: 1px solid rgba(168, 223, 224, 0.32);
  border-radius: 50%;
  content: "";
  height: 18rem;
  position: absolute;
  right: -7rem;
  top: -9rem;
  width: 18rem;
}

.page-home #title-block-header .title,
.page-home #title-block-header .subtitle,
.page-home #title-block-header .description {
  color: var(--warm-white);
  position: relative;
  z-index: 1;
}

.page-home #title-block-header .subtitle {
  color: var(--aqua);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  letter-spacing: 0.04em;
}

.page-home #title-block-header .description {
  color: rgba(247, 248, 250, 0.82);
  font-size: 1.08rem;
  max-width: 48ch;
}

.brand-signature {
  align-items: center;
  background: var(--paper);
  border: 1px solid var(--line);
  border-left: 5px solid var(--teal);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1.15rem;
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.25rem;
}

.brand-signature > p {
  margin: 0;
}

.brand-signature__mark {
  flex: 0 0 auto;
  height: clamp(4rem, 11vw, 5.75rem);
  width: clamp(4rem, 11vw, 5.75rem);
}

.brand-signature strong {
  color: var(--navy);
  font-size: 1.18rem;
}

.brand-signature em {
  color: var(--slate);
  font-size: 0.96rem;
  font-style: normal;
}

.identity-ecosystem {
  background: linear-gradient(90deg, rgba(237, 243, 245, 0.94), rgba(255, 255, 255, 0.66));
  border-left: 3px solid var(--slate);
  color: var(--slate);
  margin: 1.25rem 0 1.8rem;
  padding: 0.65rem 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.8rem 0 3.4rem;
}

.hero-actions p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 0;
}

.btn-primary,
.btn-secondary {
  border-radius: 0.55rem;
  display: inline-block;
  font-weight: 750;
  min-height: 2.75rem;
  padding: 0.72rem 1.05rem;
  text-decoration: none;
  transition: box-shadow 160ms ease, transform 160ms ease, background-color 160ms ease;
}

.btn-primary {
  background: var(--teal);
  color: white;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--teal-dark);
  color: white;
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--teal);
  color: var(--teal-dark);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--paper);
  color: var(--navy);
  transform: translateY(-2px);
}

.grid {
  align-items: stretch;
  display: grid;
  gap: 1.15rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin: 1.35rem 0 2.4rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  min-height: 10rem;
  padding: 1.35rem;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.card:hover {
  border-color: rgba(22, 125, 131, 0.46);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card p:last-child {
  margin-top: auto;
  padding-top: 0.7rem;
}

.card h3 {
  margin-top: 0;
}

.card-accent {
  border-left: 4px solid var(--teal);
  border-top: 1px solid var(--line);
}

.publication-fields {
  border-top: 1px solid var(--line);
  color: var(--slate);
  font-size: 0.9rem;
  line-height: 1.55;
  margin-top: 1rem;
  padding-top: 0.8rem;
}

.profile-group,
.archive-filters {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow-sm);
  margin: 1rem 0;
  padding: 1.15rem 1.3rem;
}

.profile-group h3,
.archive-filters h3 {
  margin-top: 0;
}

.archive-filter-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
}

.archive-filter-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.archive-filter-grid label {
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 750;
}

.archive-filter-grid input,
.archive-filter-grid select {
  background: white;
  border: 1px solid var(--slate);
  border-radius: 0.4rem;
  color: var(--graphite);
  font: inherit;
  font-size: 0.95rem;
  min-height: 2.45rem;
  padding: 0.4rem 0.55rem;
}

.archive-reset {
  background: transparent;
  border: 1px solid var(--teal);
  border-radius: 0.4rem;
  color: var(--teal-dark);
  cursor: pointer;
  font: inherit;
  font-weight: 750;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
}

.archive-result-count {
  color: var(--slate);
  margin: 0.9rem 0 0.5rem;
}

.archive-table-wrap,
.table-scroll {
  overflow-x: auto;
  width: 100%;
}

.archive-table,
.software-registry-table {
  min-width: 42rem;
}

table {
  border-color: var(--line) !important;
}

thead th {
  background: var(--navy);
  color: white;
}

tbody tr:nth-child(even) {
  background: rgba(237, 243, 245, 0.52);
}

.topic-record-list {
  margin-bottom: 1.5rem;
}

.empty-state {
  background: var(--mist);
  border-left: 4px solid var(--slate);
  padding: 0.85rem 1rem;
}

#TOC {
  padding-top: 2rem;
}

#TOC a {
  border-radius: 0.3rem;
  display: block;
  padding: 0.16rem 0.4rem;
}

#TOC a:hover,
#TOC a:focus-visible {
  background: var(--mist);
  color: var(--navy);
}

.footer {
  border-top: 1px solid var(--line);
  color: var(--slate);
  padding: 2rem clamp(1rem, 4vw, 3rem);
}

@media (max-width: 991px) {
  .navbar-brand-container {
    margin-right: auto;
  }

}

@media (min-width: 992px) {
  .page-home #explore .grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  body {
    font-size: 1rem;
  }

  main.content {
    padding-inline: 1rem;
  }

  h1 {
    font-size: clamp(2.55rem, 14vw, 4rem);
  }

  .page-home #title-block-header {
    border-radius: 1.1rem;
    padding: 2rem 1.25rem 2.35rem;
  }

  .brand-signature {
    align-items: flex-start;
  }

  .grid {
    grid-template-columns: 1fr;
  }
}

@media print {
  .navbar,
  #TOC,
  .hero-actions,
  .footer {
    display: none !important;
  }

  body,
  .page-home #title-block-header {
    background: white !important;
    box-shadow: none !important;
    color: black !important;
  }

  .page-home #title-block-header .title,
  .page-home #title-block-header .subtitle,
  .page-home #title-block-header .description {
    color: black !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}