:root {
  --ink: #16202d;
  --muted: #5c6674;
  --soft: #7a8492;
  --line: #d8ded6;
  --line-strong: #b9c2ba;
  --accent: #1f6f66;
  --accent-dark: #185b54;
  --accent-soft: #eaf4f0;
  --paper: #ffffff;
  --surface: #fbfcfa;
  --wash: #f5f7f3;
  --shadow: 0 10px 28px rgba(22, 32, 45, 0.07);
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  background: var(--paper);
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

#title-block-header,
.quarto-title-block {
  display: none;
}

a {
  color: var(--accent);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover,
a:focus {
  color: var(--accent-dark);
}

a:focus-visible,
.link-button:focus-visible,
.navbar .nav-link:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

h1,
h2,
h3,
h4 {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", Times, serif;
  font-weight: 600;
  letter-spacing: 0;
}

p {
  line-height: 1.72;
}

.navbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(22, 32, 45, 0.02);
}

.navbar-title {
  color: var(--ink);
  font-weight: 700;
  letter-spacing: 0;
}

.navbar .nav-link {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus,
.navbar .nav-link.active {
  color: var(--accent);
}

.nav-footer,
footer.footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
}

.home-page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.5rem 4.5rem;
}

.hero-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 3.5rem;
  align-items: center;
  padding: 5rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
}

.hero-copy h1,
.content-band h1 {
  margin: 0.3rem 0 1rem;
  font-size: 3.15rem;
  line-height: 1.04;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 760px;
  margin: 0;
  color: var(--muted);
  font-size: 1.13rem;
  line-height: 1.76;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.55rem;
}

.link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.45rem;
  padding: 0.5rem 0.82rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 650;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
}

.link-button:hover,
.link-button:focus {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.link-button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

.link-button.primary:hover,
.link-button.primary:focus {
  background: var(--accent-dark);
  color: var(--paper);
}

.hero-photo-wrap {
  justify-self: end;
  width: 220px;
}

.hero-photo-wrap p {
  margin: 0;
}

.hero-photo {
  width: 220px;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 18%;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow);
}

.content-band {
  padding: 3.05rem 0;
  border-bottom: 1px solid var(--line);
}

section.content-band.level2 {
  display: grid;
  grid-template-columns: minmax(8.5rem, 0.24fr) minmax(0, 1fr);
  column-gap: clamp(2rem, 5vw, 4rem);
  row-gap: 0.95rem;
  align-items: start;
}

section.content-band.level2 > h2 {
  grid-column: 1;
  display: block;
  margin: 0;
  padding-top: 0.16rem;
}

section.content-band.level2 > h2::after {
  display: block;
  width: 3rem;
  height: 2px;
  margin-top: 0.9rem;
  background: var(--accent);
}

section.content-band.level2 > :not(h2) {
  grid-column: 2;
}

.content-band h1 + p,
.content-band > p {
  max-width: 880px;
  color: var(--muted);
}

section.content-band.level2 > p {
  max-width: 760px;
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.78;
  text-wrap: pretty;
}

section.content-band.level2 > p:last-child {
  margin-bottom: 0;
}

.content-band h2 {
  display: flex;
  gap: 0.85rem;
  align-items: center;
  margin: 0 0 1.2rem;
  font-size: 1.55rem;
  line-height: 1.2;
  letter-spacing: 0;
}

.content-band h2::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.content-band h3 {
  margin: 0 0 0.55rem;
  font-size: 1.08rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.content-band h4 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: 0;
}

.content-band ul {
  padding-left: 1.15rem;
}

.content-band li {
  margin-bottom: 0.35rem;
}

.philosophy-note {
  max-width: 920px;
  margin: 1.35rem 0 1.6rem;
  padding: 1.05rem 1.15rem;
  border-left: 4px solid var(--accent);
  border-radius: 0 6px 6px 0;
  background: var(--accent-soft);
}

.philosophy-note p {
  margin-bottom: 0.85rem;
  line-height: 1.78;
}

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

.stream-grid,
.collab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  gap: 1rem;
  margin-top: 1.55rem;
}

.stream-card,
.collab-item {
  min-height: 100%;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 1rem 1.05rem;
  background: var(--surface);
}

.stream-card p,
.collab-item p,
.paper-entry p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.68;
}

.paper-list {
  display: grid;
  gap: 1.05rem;
  margin-top: 1.45rem;
}

.paper-entry {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.1rem 1.15rem;
  background: var(--wash);
}

.paper-entry h3 {
  margin-bottom: 0.45rem;
}

.paper-entry ul {
  margin-bottom: 0;
}

.paper-meta {
  margin-bottom: 0.65rem;
  color: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
  line-height: 1.45;
}

.paper-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.95rem;
  font-weight: 650;
}

.paper-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.25rem 0.62rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--paper);
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
}

.paper-links a:hover,
.paper-links a:focus {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.contact-band {
  border-bottom: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e9edf1;
    --muted: #b7c0ca;
    --soft: #9ba6b2;
    --line: #34404a;
    --line-strong: #4a5662;
    --accent: #70b8ac;
    --accent-dark: #91d0c7;
    --accent-soft: #17352f;
    --paper: #111820;
    --surface: #151e27;
    --wash: #18222c;
    --shadow: none;
  }

  .navbar {
    background: rgba(17, 24, 32, 0.96);
  }

  .link-button.primary {
    color: #0e171f;
  }
}

@media (max-width: 920px) {
  .hero-section {
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 2.4rem;
  }

  .hero-photo-wrap,
  .hero-photo {
    width: 190px;
  }
}

@media (max-width: 780px) {
  .home-page {
    padding: 0 1rem 3rem;
  }

  .hero-section {
    grid-template-columns: 1fr;
    gap: 1.75rem;
    padding: 3.1rem 0 2.35rem;
  }

  .hero-copy h1,
  .content-band h1 {
    font-size: 2.35rem;
    line-height: 1.08;
  }

  .hero-copy p {
    font-size: 1.04rem;
  }

  .hero-photo-wrap {
    justify-self: start;
  }

  .hero-photo-wrap,
  .hero-photo {
    width: 160px;
  }

  .content-band {
    padding: 2.35rem 0;
  }

  section.content-band.level2 {
    display: block;
  }

  .content-band h2 {
    display: block;
    font-size: 1.35rem;
  }

  section.content-band.level2 > h2 {
    margin-bottom: 1.15rem;
  }

  .content-band h2::after {
    display: block;
    width: 100%;
    margin-top: 0.65rem;
  }

  section.content-band.level2 > h2::after {
    width: 100%;
    height: 1px;
  }

  .stream-grid,
  .collab-grid {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }

  .link-button {
    min-height: 2.55rem;
  }
}

@media (max-width: 560px) {
  .hero-links,
  .paper-links {
    gap: 0.5rem;
  }

  .hero-links .link-button {
    flex: 1 1 100%;
  }

  .paper-entry,
  .stream-card,
  .collab-item {
    padding: 0.95rem;
  }
}