/*
  Victor Trees personal website
  Simple static HTML/CSS design, suitable for GitHub Pages.

  How to customize quickly:
  - Change colors in :root.
  - Replace placeholder text in the HTML files.
  - Add your photo as img/victor.jpg and uncomment the image in index.html.
*/

:root {
  --bg: #06111f;
  --site-bg-image: url("../img/backgrounds/background.jpg");
  --surface: rgba(255, 255, 255, 0.92);
  --surface-strong: rgba(255, 255, 255, 0.96);
  --surface-soft: rgba(233, 241, 249, 0.9);
  --text: #182333;
  --muted: #58697d;
  --border: #d6e2ef;
  --accent: #2b6f9f;
  --accent-dark: #153e63;
  --accent-soft: #e6f1fa;
  --shadow: 0 14px 35px rgba(15, 23, 42, 0.08);
  --radius: 18px;
  --max-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(
      180deg,
      rgba(6, 17, 31, 0.18) 0%,
      rgba(6, 17, 31, 0.36) 45%,
      rgba(6, 17, 31, 0.58) 100%
    ),
    var(--site-bg-image);
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.84);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.nav-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 0.05rem;
  color: var(--text);
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand:hover,
.brand:focus {
  text-decoration: none;
  color: var(--text);
}

.brand span {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 500;
  letter-spacing: 0;
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  font: inherit;
  color: var(--text);
  cursor: pointer;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
}

.nav-links a:hover,
.nav-links a:focus,
.nav-links a.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  text-decoration: none;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.25rem 1.25rem 4rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  gap: 2rem;
  align-items: center;
  padding: 3rem;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  border-radius: calc(var(--radius) + 10px);
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2.2rem, 6vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero .subtitle {
  margin: 0 0 1.25rem;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--muted);
  max-width: 64ch;
}

.hero-photo {
  aspect-ratio: 1 / 1;
  background: var(--surface-soft);
  border: 1px dashed #a8b8c6;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
  padding: 2rem;
  font-size: 0.95rem;
}

.hero-photo img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.button-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.35rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.55rem;
  padding: 0.6rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: #ffffff;
  background: var(--accent);
  font-weight: 700;
}

.button:hover,
.button:focus {
  color: #ffffff;
  background: var(--accent-dark);
  text-decoration: none;
}

.button.secondary {
  color: var(--accent-dark);
  background: transparent;
}

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

.section {
  margin-top: 2.4rem;
}

.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-header h2,
.page-title h1 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.page-title {
  max-width: 780px;
  margin-bottom: 2rem;
}

.page-title h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
}

.page-title p {
  color: var(--muted);
  font-size: 1.1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.news-item,
.paper-card,
.talk-item,
.cv-block {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.70);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: 0 14px 36px rgba(6, 17, 31, 0.18);
  backdrop-filter: blur(10px);
}


.highlight-card {
  background: linear-gradient(135deg, #123b5d 0%, #2b6f9f 100%);
  color: #ffffff;
  border-radius: calc(var(--radius) + 6px);
  padding: 1.6rem;
  box-shadow: var(--shadow);
}

.highlight-card h2 {
  margin: 0 0 0.7rem;
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.highlight-card p {
  max-width: 78ch;
}

.highlight-card .date {
  color: #d9fbff;
}

.paper-card.featured {
  border-color: rgba(43, 111, 159, 0.35);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(235, 244, 252, 0.94) 100%);
}

.card h3,
.news-item h2,
.paper-card h2,
.talk-item h2,
.cv-block h2 {
  margin-top: 0;
  margin-bottom: 0.45rem;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.card p:last-child,
.news-item p:last-child,
.paper-card p:last-child,
.talk-item p:last-child,
.cv-block p:last-child {
  margin-bottom: 0;
}

.meta,
.date,
.authors,
.journal,
.location {
  color: var(--muted);
  font-size: 0.95rem;
}

.date {
  margin: 0 0 0.35rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.tag-list,
.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.9rem;
}

.tag,
.filter-button {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--surface-soft);
  color: var(--muted);
  border: 1px solid var(--border);
}

.link-list a {
  display: inline-flex;
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  background: var(--accent-soft);
  font-size: 0.9rem;
  font-weight: 700;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.filter-button {
  cursor: pointer;
  background: var(--surface);
  color: var(--accent-dark);
}

.filter-button.active,
.filter-button:hover,
.filter-button:focus {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.paper-list,
.news-list,
.talk-list {
  display: grid;
  gap: 1rem;
}

.paper-card.hidden {
  display: none;
}

.paper-card h2 {
  font-size: 1.25rem;
}

.research-theme {
  display: grid;
  grid-template-columns: minmax(0, 0.4fr) minmax(0, 0.6fr);
  gap: 1.25rem;
  margin-bottom: 1rem;
  align-items: start;
}

.research-theme h2 {
  margin: 0;
  letter-spacing: -0.035em;
}

.callout {
  border-left: 4px solid var(--accent);
  background: var(--accent-soft);
  padding: 1rem 1.25rem;
  border-radius: 12px;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 0.45fr);
  gap: 1rem;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-list li {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
}

.contact-list li:last-child {
  border-bottom: 0;
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(12px);
}

.footer-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.92rem;
}

@media (max-width: 850px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: 4.75rem;
    padding: 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .nav-links.open {
    display: grid;
  }

  .nav-links a {
    padding: 0.65rem 0.75rem;
  }

  .hero,
  .grid,
  .grid.two,
  .research-theme,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 2rem;
  }

  .hero-photo {
    max-width: 280px;
    margin: 0 auto;
  }
}

@media (max-width: 520px) {
  main {
    padding-top: 1.25rem;
  }

  .hero {
    padding: 1.35rem;
  }

  .section-header {
    align-items: start;
    flex-direction: column;
  }
}


/* Full-page photographic background support.
   Put your chosen background image at:
   img/backgrounds/background.jpg
   The content remains readable because all panels use translucent surfaces. */
.section-header {
  background: rgba(255, 255, 255, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  box-shadow: 0 10px 26px rgba(6, 17, 31, 0.14);
  backdrop-filter: blur(10px);
}

.image-credit {
  color: var(--muted);
}

/* Figure-enabled cards for publication and news entries. */
.page-card {
  max-width: none;
  margin-bottom: 1.5rem;
}

.with-figure {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.34fr);
  gap: 1.1rem;
  align-items: stretch;
}

.paper-content,
.news-content {
  min-width: 0;
}

.entry-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.figure-placeholder {
  min-height: 170px;
  height: 100%;
  border-radius: calc(var(--radius) - 4px);
  border: 1px dashed #a8b8c6;
  background:
    linear-gradient(135deg, rgba(230, 241, 250, 0.7), rgba(255, 255, 255, 0.85));
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  font-weight: 650;
  line-height: 1.45;
}

.entry-figure img {
  width: 100%;
  height: 100%;
  min-height: 170px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid var(--border);
}

.entry-figure figcaption,
.theme-image figcaption {
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

.theme-image figcaption {
  margin-top: 0.45rem;
}

.paper-summary {
  margin-top: 0.75rem;
}

code {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.05rem 0.3rem;
}

@media (max-width: 850px) {
  .with-figure {
    grid-template-columns: 1fr;
  }

  .figure-placeholder,
  .entry-figure img {
    min-height: 190px;
  }
}

@media (max-width: 850px) {
  body {
    background-attachment: scroll;
    background-position: center top;
  }
}

/* Research-theme image support. These placeholders can be replaced with real images later. */
.theme-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.theme-card h3 {
  margin-top: 0.15rem;
}

.theme-image {
  margin: 0 0 0.1rem;
}

.figure-placeholder.small {
  min-height: 135px;
  font-size: 0.88rem;
}

.theme-image img {
  width: 100%;
  min-height: 135px;
  max-height: 190px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid var(--border);
}

.research-theme.with-theme-image {
  grid-template-columns: minmax(180px, 0.26fr) minmax(180px, 0.25fr) minmax(0, 0.49fr);
  align-items: start;
}

.research-theme.with-theme-image .theme-image {
  height: 100%;
}

@media (max-width: 850px) {
  .research-theme.with-theme-image {
    grid-template-columns: 1fr;
  }
}

/* Homepage research-highlight cards: full-width, image-led highlights with media links. */
.discovery-list {
  display: grid;
  gap: 1rem;
}

.discovery-card.wide-card {
  display: grid;
  grid-template-columns: minmax(230px, 0.34fr) minmax(0, 1fr);
  gap: 1.2rem;
  align-items: stretch;
}

.discovery-card.wide-card .theme-image {
  height: 100%;
}

.discovery-card.wide-card .figure-placeholder,
.discovery-card.wide-card .theme-image img {
  min-height: 210px;
  height: 100%;
}

.discovery-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.discovery-card .date {
  margin-top: 0.1rem;
}

.discovery-card h3 {
  font-size: 1.18rem;
}

.discovery-card .link-list {
  margin-top: auto;
}

@media (max-width: 850px) {
  .discovery-card.wide-card {
    grid-template-columns: 1fr;
  }
}


/* Homepage key software/method cards. Keep these compact: MONKI is the lead panel,
   DARCLOS and the eclipse-correction method are supporting methodological outputs. */
.software-grid .software-card:first-child {
  border-color: rgba(43, 111, 159, 0.34);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(235, 244, 252, 0.95) 100%);
}

.software-card h3 {
  font-size: 1.08rem;
}

.software-card .tag-list {
  margin-top: auto;
}


/* Image credits page. The link to this page lives in the footer so the main
   navigation stays focused on research content. */
.credit-section {
  margin-top: 1.5rem;
}

.credit-grid {
  align-items: stretch;
}

.credit-card code {
  font-size: 0.92rem;
  color: var(--accent-dark);
  background: rgba(230, 241, 250, 0.7);
  padding: 0.08rem 0.25rem;
  border-radius: 6px;
}

.footer-wrap a {
  font-weight: 700;
}

/* v16: robust image/caption layout.
   Captions are now part of the normal card flow, so they no longer overlap
   with headings or spill out of wide discovery cards. */
.theme-image {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.theme-image figcaption,
.entry-figure figcaption {
  display: block;
  clear: both;
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.35;
}

.theme-card .theme-image {
  margin-bottom: 0.35rem;
}

.discovery-card.wide-card {
  align-items: start;
}

.discovery-card.wide-card .theme-image {
  height: auto;
  align-self: start;
}

.discovery-card.wide-card .figure-placeholder,
.discovery-card.wide-card .theme-image img {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.theme-card .theme-image img,
.theme-card .figure-placeholder.small {
  width: 100%;
  min-height: 0;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}


/* v21: method schematics should be shown in full rather than cropped. */
.software-card .theme-image img {
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.94);
  padding: 0.35rem;
}

.diagram-figure img {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.94);
  padding: 0.45rem;
}

.software-method-grid {
  align-items: start;
}

/* v29: publication figures are mostly scientific diagrams/plots; show them in full. */
.paper-list .paper-figure img {
  width: 100%;
  height: auto;
  min-height: 0;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.35rem;
}


/* v31: publication context notes. */
.paper-details {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
}

.paper-details p {
  margin: 0;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(43, 111, 159, 0.16);
  border-left: 4px solid rgba(43, 111, 159, 0.45);
  border-radius: 14px;
  background: rgba(235, 244, 252, 0.55);
  color: var(--text);
}

.paper-details strong {
  color: var(--accent-dark);
}

.page-title p + p {
  margin-top: 0.65rem;
}


/* v32: emphasize first-author journal papers; keep co-authored/preprint entries compact. */
.paper-card.first-author-journal {
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.62fr);
  gap: 1.35rem;
  padding: 1.45rem;
  border-color: rgba(43, 111, 159, 0.30);
}

.paper-card.first-author-journal .paper-figure img {
  aspect-ratio: 4 / 3;
  padding: 0.45rem;
}

.paper-card.first-author-journal h2 {
  font-size: 1.32rem;
}

.paper-card.compact-publication .paper-details {
  display: none;
}

.paper-card.compact-publication .paper-summary {
  margin-bottom: 0.85rem;
}

.paper-card.first-author-journal .paper-details {
  margin-top: 1.05rem;
}

.paper-card.first-author-journal .paper-details p {
  background: rgba(235, 244, 252, 0.72);
}

@media (max-width: 950px) {
  .paper-card.first-author-journal {
    grid-template-columns: 1fr;
  }
}


/* v34: use simulation figures on the homepage and pair them with method sketches on Software & methods. */
.software-grid .software-card .theme-image img {
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.35rem;
}

.method-example-list {
  display: grid;
  gap: 1.1rem;
}

.method-example-card {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 1.15rem;
  align-items: start;
}

.method-figure-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.method-figure-pair .theme-image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.35rem;
}

.method-example-card h3 {
  margin-top: 0.2rem;
}

@media (max-width: 980px) {
  .method-example-card,
  .method-figure-pair {
    grid-template-columns: 1fr;
  }
}


/* v35: Software & methods uses three full-width method panels. */
.software-grid .software-card .theme-image img {
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.3rem;
}

.method-panel-list {
  display: grid;
  gap: 1.35rem;
}

.method-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(320px, 1.08fr);
  gap: 1.4rem;
  align-items: start;
}

.method-panel h2 {
  font-size: clamp(1.35rem, 2vw, 1.9rem);
  margin-bottom: 0.75rem;
}

.method-panel-text p {
  max-width: 68rem;
}

.method-figure-stack {
  display: grid;
  gap: 0.95rem;
}

.method-figure-stack .theme-image img {
  width: 100%;
  max-height: none;
  aspect-ratio: auto;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.35rem;
}

.method-figure-stack .theme-image figcaption {
  font-size: 0.78rem;
}

@media (max-width: 950px) {
  .method-panel {
    grid-template-columns: 1fr;
  }
}

/* v36: Research page image-led theme sections. */
.research-theme-list {
  display: grid;
  gap: 1.35rem;
}

.research-feature {
  display: grid;
  grid-template-columns: minmax(260px, 0.42fr) minmax(0, 0.58fr);
  gap: 1.4rem;
  align-items: start;
}

.research-feature-image {
  margin: 0;
}

.research-feature-image img {
  width: 100%;
  min-height: 0;
  max-height: none;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid var(--border);
}

.research-feature-content h2 {
  margin-top: 0.15rem;
}

.research-feature-content p:last-child {
  margin-bottom: 0;
}

@media (max-width: 850px) {
  .research-feature {
    grid-template-columns: 1fr;
  }
}


/* Bilingual language switcher */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  flex: 0 0 auto;
}
.lang-switch a {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.86rem;
  padding: 0.38rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.68);
}
.lang-switch a:hover,
.lang-switch a:focus,
.lang-switch a.active {
  color: var(--accent-dark);
  background: var(--accent-soft);
  text-decoration: none;
}
.lang-switch .flag {
  font-size: 1rem;
  line-height: 1;
}
@media (max-width: 850px) {
  .lang-switch { margin-left: auto; }
}


/* v38: keep the desktop navigation on one line after adding the language switcher. */
.site-header .nav-wrap {
  max-width: 1240px;
  gap: 0.65rem;
}
.site-header .nav-links {
  flex: 1 1 auto;
  justify-content: flex-end;
  flex-wrap: nowrap;
  min-width: 0;
}
.site-header .nav-links a,
.site-header .lang-switch a {
  white-space: nowrap;
}
@media (min-width: 851px) and (max-width: 1120px) {
  .site-header .nav-wrap { gap: 0.45rem; }
  .site-header .nav-links a {
    font-size: 0.86rem;
    padding: 0.38rem 0.46rem;
  }
  .site-header .lang-switch a {
    font-size: 0.78rem;
    padding: 0.32rem 0.38rem;
  }
  .site-header .brand span {
    font-size: 0.70rem;
  }
}
@media (min-width: 851px) and (max-width: 980px) {
  .site-header .brand span { display: none; }
}


/* v39: concise method-building blocks on Software & methods. */
.method-building-grid .card h3 {
  margin-top: 0;
  margin-bottom: 0.7rem;
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
}

.method-building-grid .card p {
  margin-bottom: 0;
}


/* v40: make the polarised-radiative-transfer foundation block easier to scan. */
.research-feature-media {
  display: grid;
  gap: 0.9rem;
  align-self: start;
}
.research-subsection {
  margin-top: 0.95rem;
}
.research-subsection h3,
.research-history-callout h3 {
  margin: 0 0 0.35rem;
  font-size: 1.03rem;
  letter-spacing: -0.015em;
  color: var(--accent-dark);
}
.research-subsection p {
  margin-top: 0;
}
.research-history-callout {
  margin: 1.05rem 0 1rem;
}
.research-history-callout p:last-child {
  margin-bottom: 0;
}


/* v9: let research-side figures show their full content in the polarised-radiative-transfer block. */
.research-feature-media .research-feature-image img {
  aspect-ratio: auto;
  height: auto;
  max-height: 360px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.72);
}
.research-feature-media .research-feature-image figcaption {
  max-width: 62ch;
}


/* v40: scientific news figures should be shown in full instead of cropped. */
.entry-figure.contain-figure {
  align-self: start;
}

.entry-figure.contain-figure img {
  height: auto;
  min-height: 0;
  max-height: 420px;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.96);
  padding: 0.35rem;
}

.story-card h2 {
  margin-top: 0;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.story-teaser .button-row {
  margin-top: 1rem;
}


/* v42: story article pages. */
.story-article-header .button-row {
  margin-top: 1rem;
}

.story-article {
  max-width: 900px;
  margin: 1.2rem auto 0;
}

.story-article h2 {
  margin-top: 1.6rem;
  margin-bottom: 0.45rem;
  letter-spacing: -0.02em;
  color: var(--accent-dark);
}

.story-article h2:first-child {
  margin-top: 0;
}

.story-card .button-row {
  margin-top: 1rem;
}

.story-card h2 a {
  color: inherit;
  text-decoration: none;
}

.story-card h2 a:hover,
.story-card h2 a:focus {
  color: var(--accent);
}

/* Story figures. */
.story-figure {
  margin: 1.2rem auto 1.4rem;
  max-width: 680px;
}

.story-figure-wide {
  max-width: 920px;
}

.story-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius) - 4px);
  border: 1px solid var(--border);
  box-shadow: 0 14px 32px rgba(6, 17, 31, 0.12);
  background: #f6f8fb;
}

.story-figure figcaption {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.5;
}