/* ============================================================
   Academic research theme
   Preserves the existing graphite, coral, cream, and green palette.
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;400;500;600;700;800&display=swap");

:root {
  --bg-main: #17232c;
  --bg-secondary: #233242;
  --bg-card: #1d2b36;
  --bg-card-soft: rgb(242, 140, 40);
  --bg-code: #111b22;

  --text-main: #f5f0df;
  --text-muted: #d7d9d1;
  --text-soft: #aeb7b8;

  --accent-cold: #75d898;
  --accent-cold-soft: #b8ee7f;
  --accent-hot: #ff6f63;
  --accent-hot-soft: #ff8a7d;
  --accent-hot-light: #ffab9f;

  --border-soft: rgba(177, 204, 202, 0.12);
  --border-medium: rgba(177, 204, 202, 0.24);
  --shadow-soft: 0 18px 38px rgba(0, 0, 0, 0.22);
  --shadow-card: 0 10px 24px rgba(0, 0, 0, 0.18);

  --radius-small: 4px;
  --radius-medium: 6px;
  --radius-large: 8px;
  --content-width: 980px;
  --reading-width: 760px;
}

html {
  background: var(--bg-main);
}

body {
  background:
    linear-gradient(180deg, rgba(35, 50, 66, 0.58), rgba(23, 35, 44, 0) 19rem),
    var(--bg-main);
  color: var(--text-main);
  font-family:
    "Nunito Sans",
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0;
}

::selection {
  background: rgba(255, 111, 99, 0.34);
  color: #fff8df;
}

main,
.page-columns .content {
  width: min(100%, var(--content-width));
  max-width: var(--content-width);
  margin-inline: auto;
}

#quarto-content {
  padding-top: 1.5rem;
}

#quarto-document-content {
  padding-inline: 1.35rem;
}

#title-block-header {
  width: min(100%, var(--reading-width));
  margin: 2.6rem auto 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border-soft);
}

#title-block-header:empty {
  display: none;
}

.quarto-title-meta {
  color: var(--text-soft);
}

h1,
h2,
h3,
h4 {
  color: var(--accent-hot);
  font-weight: 560;
  line-height: 1.18;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 0.8rem;
  font-size: 3.1rem;
  font-weight: 520;
}

h2 {
  width: min(100%, var(--reading-width));
  margin: 3.2rem auto 1.05rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-soft);
  color: var(--accent-hot-soft);
  font-size: 1.48rem;
}

h3 {
  margin-top: 1.8rem;
  margin-bottom: 0.45rem;
  color: var(--accent-hot-light);
  font-size: 1.08rem;
}

h4 {
  font-size: 1rem;
}

p,
ul,
ol,
dl,
blockquote,
pre,
table,
.cell,
.callout {
  width: min(100%, var(--reading-width));
  margin-inline: auto;
}

p,
li {
  color: var(--text-muted);
}

p {
  margin-bottom: 1.05rem;
}

strong {
  color: var(--text-main);
  font-weight: 620;
}

a {
  color: var(--accent-cold-soft);
  text-decoration: underline;
  text-decoration-color: rgba(184, 238, 127, 0.3);
  text-underline-offset: 0.2em;
  transition:
    color 0.16s ease,
    text-decoration-color 0.16s ease,
    background-color 0.16s ease;
}

a:hover {
  color: var(--accent-hot-soft);
  text-decoration-color: rgba(255, 138, 125, 0.62);
}

.navbar {
  background: rgba(23, 35, 44, 0.94) !important;
  border-bottom: 1px solid var(--border-soft);
  box-shadow: none;
  backdrop-filter: blur(16px);
}

.navbar-container {
  display: flex;
  width: min(100%, 1120px);
  align-items: center;
  gap: 0.9rem;
  margin-inline: auto;
}

.navbar-brand-container {
  display: flex;
  flex: 0 0 6.7rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 !important;
}

.navbar-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.16rem;
  margin: 0;
  padding: 0;
  line-height: 1.05;
}

.navbar-logo {
  width: 4.2rem;
  height: 4.2rem;
  max-height: none !important;
  margin: 0;
  object-fit: contain;
}

.navbar-title {
  color: var(--text-main) !important;
  font-size: 0.9rem;
  font-weight: 600;
}

.navbar-brand,
.navbar-brand:hover,
.navbar-brand:focus,
.navbar-brand .navbar-title {
  color: var(--text-main) !important;
}

.navbar-collapse,
.navbar-collapse.collapse,
.navbar-collapse.collapsing {
  display: flex !important;
  flex-basis: auto;
  flex-grow: 1;
  align-items: center;
  justify-content: space-between;
}

.navbar-nav {
  flex-direction: row !important;
  flex-wrap: nowrap;
  align-items: center;
  gap: 0.15rem 0.58rem;
}

.navbar-nav-scroll {
  max-height: none;
  overflow: visible;
}

.navbar-nav .nav-link {
  color: var(--text-muted) !important;
  border-bottom: 1px solid transparent;
  font-size: 0.92rem;
  font-weight: 470;
  text-decoration: none;
  white-space: nowrap;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--accent-cold-soft) !important;
  border-bottom-color: rgba(184, 238, 127, 0.58);
}

.navbar-toggler {
  display: none !important;
}

.quarto-navbar-tools a {
  color: var(--text-muted) !important;
}

.hero,
.home-intro {
  width: min(100%, var(--content-width));
  margin: 2.8rem auto 3.4rem;
  padding-bottom: 2.2rem;
  border-bottom: 1px solid var(--border-soft);
}

.home-hero {
  position: relative;
  width: min(100%, var(--content-width));
  min-height: 760px;
  margin: 2.6rem auto 3.2rem;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-medium);
  background: var(--bg-card);
  box-shadow: var(--shadow-soft);
}

.home-photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  margin: 0;
}

.home-photo p {
  width: 100%;
  height: 100%;
  margin: 0;
}

.home-photo img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: 0;
  border-radius: 0;
  filter: brightness(0.5) saturate(0.9) contrast(1.04);
}

.home-hero::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  background:
    linear-gradient(90deg, rgba(17, 27, 34, 0.92) 0%, rgba(17, 27, 34, 0.78) 43%, rgba(17, 27, 34, 0.42) 100%),
    linear-gradient(180deg, rgba(17, 27, 34, 0.24), rgba(17, 27, 34, 0.7));
}

.home-hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  min-height: 760px;
  align-content: start;
  gap: 2rem;
  padding: clamp(1.55rem, 3.8vw, 3.15rem) clamp(2rem, 5vw, 4.2rem) clamp(2rem, 5vw, 4.2rem);
}

.home-name-lockup {
  display: flex;
  width: fit-content;
  max-width: 100%;
  align-items: center;
  gap: 0.85rem;
}

.home-name-icon {
  width: clamp(3.35rem, 6.6vw, 5.1rem);
  height: clamp(3.35rem, 6.6vw, 5.1rem);
  flex: 0 0 auto;
  object-fit: contain;
}

.home-main-name {
  width: auto;
  max-width: 720px;
  margin: 0;
  color: var(--text-main) !important;
  font-size: 3.35rem;
  font-weight: 520;
  line-height: 1.05;
}

.home-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(240px, 0.58fr);
  gap: 2.2rem;
  align-items: start;
  margin-top: 0;
}

.home-intro h1,
.hero h1 {
  margin: 0 0 0.75rem;
  color: var(--text-main);
  font-size: 3.2rem;
}

.home-intro h2,
.hero h2 {
  width: auto;
  margin: 0 0 1.1rem;
  padding: 0;
  border: 0;
  color: var(--accent-hot-soft);
  font-size: 1.32rem;
}

.home-intro p,
.hero p {
  width: auto;
  max-width: 720px;
  margin-inline: 0;
  color: var(--text-muted);
  font-size: 1.02rem;
}

.home-hero .home-intro {
  width: auto;
  margin: 0;
  padding: 0;
  border: 0;
}

.home-hero .home-intro p {
  color: rgba(245, 240, 223, 0.9);
}

.intro-kicker {
  margin-bottom: 0.55rem;
  color: var(--accent-cold-soft);
  font-size: 0.82rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.research-panel {
  padding: 1rem 0 0 1.2rem;
  border-left: 1px solid var(--border-medium);
}

.home-hero .research-panel {
  border-left-color: rgba(184, 238, 127, 0.34);
  background: rgba(17, 27, 34, 0.22);
}

.research-panel h2,
.research-panel h3 {
  width: auto;
  margin: 0 0 0.8rem;
  padding: 0;
  border: 0;
  color: var(--accent-hot-light);
  font-size: 1rem;
}

.research-panel ul {
  width: auto;
  margin: 0;
  padding-left: 1.05rem;
}

.research-panel li {
  margin-bottom: 0.38rem;
  color: var(--text-muted);
}

.site-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  width: min(100%, var(--reading-width));
  margin: 1.6rem auto 2.3rem;
}

.home-hero .site-links {
  width: auto;
  margin: 0;
}

.site-links p {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  width: auto;
  margin: 0;
}

.btn,
.btn-secondary,
.site-links a {
  display: inline-flex;
  min-height: 2.35rem;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0.58rem 0.78rem;
  border-radius: var(--radius-small);
  font-size: 0.92rem;
  font-weight: 560;
  line-height: 1.2;
  text-decoration: none;
  transition:
    background-color 0.16s ease,
    border-color 0.16s ease,
    color 0.16s ease,
    transform 0.16s ease;
}

.btn,
.site-links a {
  border: 1px solid rgba(184, 238, 127, 0.34);
  background: rgba(41, 89, 111, 0.56);
  color: var(--accent-cold-soft) !important;
}

.btn:hover,
.site-links a:hover {
  border-color: rgba(184, 238, 127, 0.62);
  background: rgba(41, 89, 111, 0.76);
  color: #d6ff9c !important;
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid var(--border-medium);
  background: rgba(29, 43, 54, 0.52);
  color: var(--text-main) !important;
}

.btn-secondary:hover {
  border-color: var(--accent-hot-soft);
  background: rgba(255, 138, 125, 0.12);
  color: var(--text-main) !important;
  transform: translateY(-1px);
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  width: min(100%, var(--reading-width));
  margin: 1.4rem auto 2.3rem;
}

.card {
  width: min(100%, var(--reading-width));
  margin: 1.05rem auto;
  padding: 1.05rem 0 1.15rem 1rem;
  border: 0;
  border-left: 2px solid rgba(184, 238, 127, 0.42);
  border-radius: 0;
  background: linear-gradient(90deg, rgba(29, 43, 54, 0.76), rgba(29, 43, 54, 0.18));
  box-shadow: none;
}

.card:hover {
  border-left-color: var(--accent-hot-soft);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.45rem;
  color: var(--accent-hot-light);
  font-size: 1.08rem;
  font-weight: 590;
}

.card p {
  width: auto;
  max-width: none;
  margin-inline: 0;
  margin-bottom: 0.65rem;
  color: var(--text-muted);
}

.card p:last-child {
  margin-bottom: 0;
}

.card + hr {
  display: none;
}

main > ul {
  list-style: none;
  padding-left: 0;
}

main > ul > li {
  margin: 0 auto 1.1rem;
  padding: 0 0 1rem 1rem;
  border-left: 2px solid rgba(184, 238, 127, 0.34);
}

main > ul > li::marker {
  color: var(--accent-cold-soft);
}

main > ul > li p {
  width: auto;
  margin: 0;
}

.callout {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-medium);
  background: rgba(29, 43, 54, 0.7);
  box-shadow: none;
}

.callout-note {
  border-left-color: var(--accent-cold) !important;
}

.callout-warning {
  border-left-color: var(--accent-hot) !important;
}

pre,
code {
  background-color: var(--bg-code) !important;
  color: var(--text-main);
  border-radius: var(--radius-small);
}

pre {
  padding: 1rem;
  border: 1px solid var(--border-soft);
  box-shadow: none;
}

p code,
li code {
  padding: 0.1rem 0.28rem;
  color: var(--accent-cold-soft);
  background: rgba(41, 89, 111, 0.36) !important;
  border-radius: var(--radius-small);
}

.math.display,
span.math.display,
div.math.display {
  padding: 0 !important;
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

mjx-container {
  border: none !important;
  background: transparent !important;
  box-shadow: none !important;
}

mjx-container[display="true"] {
  display: block;
  margin: 1.45rem 0;
  overflow-x: auto;
  text-align: center;
}

table {
  border-color: var(--border-soft);
}

thead {
  background: rgba(41, 89, 111, 0.32);
}

tbody tr:hover {
  background: rgba(41, 89, 111, 0.2);
}

.footer,
.nav-footer {
  border-top: 1px solid var(--border-soft);
  background: rgba(17, 27, 34, 0.52);
  color: var(--text-soft);
}

.nav-footer a {
  color: var(--accent-cold-soft);
}

#TOC {
  border-left: 1px solid var(--border-soft);
}

#TOC a {
  color: var(--text-soft);
  text-decoration: none;
}

#TOC a:hover {
  color: var(--accent-cold-soft);
}

img {
  border-radius: var(--radius-small);
}

.figure-img {
  border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-card);
}

hr {
  width: min(100%, var(--reading-width));
  height: 1px;
  margin: 2rem auto;
  border: none;
  background: var(--border-soft);
}

@media (max-width: 850px) {
  body {
    font-size: 15.8px;
  }

  #quarto-content {
    padding-top: 1.15rem;
  }

  .navbar {
    padding-top: 0.55rem;
    padding-bottom: 0.55rem;
  }

  .navbar-container {
    position: relative;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem 0.85rem;
  }

  .navbar-brand-container {
    flex: 1 0 100%;
    display: flex;
    justify-content: center;
  }

  .navbar-logo {
    width: 4.65rem;
    height: 4.65rem;
  }

  .navbar-title {
    font-size: 0.98rem;
  }

  .navbar-collapse,
  .navbar-collapse.collapse,
  .navbar-collapse.collapsing {
    flex: 1 0 100%;
    justify-content: center;
  }

  .navbar-nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.15rem 0.75rem;
  }

  .navbar-nav .nav-link {
    padding: 0.2rem 0;
    font-size: 0.78rem;
  }

  .navbar-nav.ms-auto {
    margin-left: 0 !important;
  }

  #quarto-search {
    position: absolute;
    top: 0.6rem;
    right: 0.85rem;
  }

  #quarto-document-content {
    padding-inline: 1rem;
  }

  #title-block-header {
    margin-top: 1.8rem;
  }

  h1,
  .home-intro h1,
  .hero h1 {
    font-size: 2.35rem;
  }

  .home-main-name {
    font-size: 2.35rem;
  }

  .home-name-lockup {
    gap: 0.65rem;
  }

  .home-name-icon {
    width: 3.05rem;
    height: 3.05rem;
  }

  h2 {
    font-size: 1.32rem;
  }

  .home-intro {
    grid-template-columns: 1fr;
    gap: 1.4rem;
    margin-top: 0;
  }

  .home-hero {
    min-height: auto;
    margin: 1.5rem auto 2.4rem;
  }

  .home-hero::after {
    background:
      linear-gradient(180deg, rgba(17, 27, 34, 0.88) 0%, rgba(17, 27, 34, 0.78) 42%, rgba(17, 27, 34, 0.9) 100%);
  }

  .home-photo img {
    filter: brightness(0.43) saturate(0.86) contrast(1.03);
  }

  .home-hero-content {
    min-height: auto;
    gap: 1.55rem;
    padding: 1.15rem 1.55rem 1.55rem;
  }

  .research-panel {
    padding-top: 1rem;
    padding-left: 0.9rem;
  }

  .card {
    padding-left: 0.85rem;
  }
}