:root {
  /* Warm light yellow page, dark blue type (pairs with sulfur-crystal banner) */
  --background: #fff8e7;
  --text: #152238;
  --muted-text: #4a5d78;
  --accent: #1a4f8c;
  --accent-soft: rgba(26, 79, 140, 0.12);
  --accent-border: rgba(26, 79, 140, 0.35);
  --accent-border-strong: rgba(26, 79, 140, 0.45);
  --surface-elevated: rgba(255, 252, 244, 0.92);
  --border-soft: rgba(21, 34, 56, 0.09);
  --max-width: 780px;
  /* Palatino-led stack: literary serif sitewide (tweak in one place) */
  --font-serif: Palatino, "Palatino Linotype", "Book Antiqua", "URW Palladio L",
    Georgia, "Times New Roman", serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-serif);
  color: var(--text);
  background-color: var(--background);
  line-height: 1.62;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  margin-top: 0;
  color: var(--text);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

/* Full-width art banner + primary nav (Home / Research) */
.site-masthead {
  border-bottom: 1px solid var(--border-soft);
  background: var(--background);
  padding-top: 0.5rem;
}

/* Inset ~25%: centered strip, same crop (object-position), smaller footprint */
.site-banner {
  position: relative;
  width: 75%;
  max-width: 100%;
  margin: 0 auto;
  max-height: min(210px, 24vh);
  min-height: 105px;
  overflow: hidden;
  background: #152a45;
  border-radius: 0 0 12px 12px;
}

.site-banner img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 105px;
  max-height: min(210px, 24vh);
  object-fit: cover;
  object-position: 50% 42%;
}

.site-nav-strip {
  background: linear-gradient(
      to bottom,
      var(--surface-elevated),
      var(--background)
    );
}

.site-nav-strip-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.25rem 0.55rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
}

@media (min-width: 560px) {
  .site-nav-strip-inner {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }
}

.site-primary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  align-items: center;
}

.site-primary-nav .nav-link {
  position: relative;
  font-size: 0.88rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 252, 244, 0.75);
  color: var(--muted-text);
  text-decoration: none;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}

.site-primary-nav .nav-link::after {
  display: none;
}

.site-primary-nav .nav-link:hover,
.site-primary-nav .nav-link:focus {
  color: var(--text);
  border-color: var(--accent-border);
  outline: none;
  text-decoration: none;
}

.site-primary-nav .nav-link:focus-visible {
  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--accent);
}

.site-primary-nav .nav-link-active {
  background: var(--accent-soft);
  color: var(--text);
  border-color: var(--accent-border-strong);
  font-weight: 600;
}

.site-banner-attribution {
  margin: 0;
  font-size: 0.68rem;
  line-height: 1.4;
  color: var(--muted-text);
  max-width: 28rem;
}

.site-banner-attribution a {
  color: inherit;
  text-decoration: underline;
}

.site-banner-attribution a:hover,
.site-banner-attribution a:focus {
  color: var(--text);
}

.page-main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr);
  gap: 2.25rem;
  align-items: start;
}

.intro-photo img {
  max-width: 100%;
  display: block;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 14px 30px rgba(21, 34, 56, 0.1);
}

.intro-text h1 {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.intro-affiliation {
  margin-top: 0;
  color: var(--muted-text);
  font-size: 0.95rem;
}

.intro-text p {
  margin-top: 0.85rem;
}

.contact-block {
  margin-top: 1.6rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-soft);
}

.contact-block h2 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.page-header {
  margin-bottom: 1.75rem;
}

.page-header p {
  max-width: 44rem;
  color: var(--muted-text);
}

.page-header--compact {
  margin-bottom: 1.25rem;
}

.research-page-intro {
  margin: 0 0 1.25rem;
  max-width: 44rem;
  color: var(--muted-text);
  font-size: 0.95rem;
  line-height: 1.55;
}

.research-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-soft);
}

.research-tab {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.45rem 0.75rem;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 252, 244, 0.75);
  color: var(--muted-text);
  cursor: pointer;
  transition:
    background-color 140ms ease,
    color 140ms ease,
    border-color 140ms ease;
}

.research-tab:hover,
.research-tab:focus {
  color: var(--text);
  border-color: var(--accent-border);
  outline: none;
}

.research-tab:focus-visible {
  box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--accent);
}

.research-tab-active {
  background: var(--accent-soft);
  color: var(--text);
  border-color: var(--accent-border-strong);
  font-weight: 600;
}

.research-panels {
  min-height: 4rem;
}

.tab-panel[hidden] {
  display: none;
}

.writings-section--tab {
  margin-top: 0;
}

/* Match publication entry body text (see .pub-abstract-body) */
.books-panel {
  color: var(--text);
  font-size: 0.92rem;
  max-width: 44rem;
}

.books-panel p {
  margin-top: 0.85rem;
  line-height: 1.58;
}

.books-panel p:first-child {
  margin-top: 0;
}

.books-panel strong {
  color: var(--accent);
  font-weight: 600;
}

.writings-section {
  margin-top: 2rem;
}

.writings-section h2 {
  font-size: 1.25rem;
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 0.3rem;
  margin-bottom: 1rem;
}

.writing-item + .writing-item {
  margin-top: 1.4rem;
}

.writing-title {
  font-size: 1.02rem;
  margin-bottom: 0.2rem;
}

.writing-meta {
  font-size: 0.9rem;
  color: var(--muted-text);
  margin: 0 0 0.4rem;
}

.writing-abstract {
  margin: 0;
}

.pub-source-note {
  font-size: 0.88rem;
  color: var(--muted-text);
  margin: 0 0 1.5rem;
  line-height: 1.55;
}

.pub-source-note .pub-path {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  font-size: 0.92em;
  padding: 0.1em 0.35em;
  border-radius: 3px;
  background: var(--border-soft);
  color: var(--text);
}

.pub-entry + .pub-entry {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-soft);
}

.pub-abstract {
  margin-top: 0.65rem;
  border: none;
}

.pub-abstract-summary {
  display: inline-flex;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  list-style: none;
  cursor: pointer;
  color: var(--accent);
  padding: 0.25rem 0.65rem;
  border: 1px solid var(--accent-border);
  border-radius: 6px;
  background: rgba(255, 252, 244, 0.85);
}

.pub-abstract-summary::-webkit-details-marker {
  display: none;
}

.pub-abstract-summary::before {
  content: "";
  display: inline-block;
  width: 0.35rem;
  height: 0.35rem;
  margin-right: 0.4rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 0.15s ease;
}

.pub-abstract[open] .pub-abstract-summary::before {
  transform: rotate(45deg);
  margin-top: 0.1rem;
}

.pub-abstract-summary:hover,
.pub-abstract-summary:focus {
  background: var(--accent-soft);
  outline: none;
}

.pub-abstract-body {
  margin-top: 0.65rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  background: rgba(255, 252, 244, 0.9);
  border: 1px solid var(--border-soft);
  font-size: 0.92rem;
  line-height: 1.58;
}

.pub-abstract-body p {
  margin: 0;
}

.pub-abstract-body:empty {
  display: none;
}

.pub-abstract-missing {
  color: var(--muted-text);
  font-style: italic;
}

.about-section {
  margin-top: 2rem;
}

.about-section h2 {
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
}

.about-section ul {
  padding-left: 1.1rem;
}

.about-section li {
  margin-bottom: 0.2rem;
}

.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 1.2rem 0 1.8rem;
  margin-top: 1rem;
}

.site-footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
  font-size: 0.85rem;
  color: var(--muted-text);
}

@media (max-width: 720px) {
  .site-banner {
    max-height: min(150px, 21vh);
    min-height: 90px;
  }

  .site-banner img {
    min-height: 90px;
    max-height: min(150px, 21vh);
  }

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

  .intro-photo {
    order: -1;
    max-width: 260px;
  }
}