/* ============================================
   Luka Homepage adapted with Carlini-inspired
   typography, colors, navigation, and writing pages.
   ============================================ */

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
}

body.theme-luka,
body.theme-luka *,
body.theme-luka *::before,
body.theme-luka *::after {
  box-sizing: border-box;
}

:root {
  --page-bg: #fefefe;
  --panel-bg: #ffffff;
  --soft-bg: #f8f8f8;
  --text: #222222;
  --muted: #777777;
  --border: #d0d0d0;
  --light-border: #dddddd;
  --accent: #a02020;
  --accent-hover: #c03030;
  --accent-rule: #c44;
  --shadow: rgba(0, 0, 0, 0.08);
}

body.theme-luka {
  background: var(--page-bg);
  color: var(--text);
  font-family: "Lora", Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
}

body.theme-luka a {
  color: var(--accent);
  text-decoration: none;
}

body.theme-luka a:hover {
  color: var(--accent-hover);
}

body.theme-luka .fancy a {
  position: relative;
}

body.theme-luka .fancy a::before {
  content: "";
  position: absolute;
  display: block;
  width: 100%;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--accent-rule);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

body.theme-luka .fancy a:hover::before {
  transform: scaleX(0.99);
}

body.theme-luka .top-nav {
  width: 100%;
  min-height: 3.5em;
  padding: 1em 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

body.theme-luka .nav-container {
  width: 100%;
  max-width: 60em;
  margin: 0 auto;
  padding: 0 1em;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2em;
}

body.theme-luka .nav-title {
  color: var(--text);
  font-size: 150%;
  font-variant: small-caps;
  letter-spacing: 0.15em;
  white-space: nowrap;
}

body.theme-luka .nav-links {
  display: flex;
  align-items: center;
  gap: 0.8em;
  font-size: 120%;
  font-variant: small-caps;
}

body.theme-luka .nav-links a {
  color: var(--accent);
}

body.theme-luka .nav-links a.active {
  color: var(--text);
  font-weight: 600;
}

body.theme-luka .wrapper {
  width: 100%;
  max-width: 60em;
  margin: 0 auto;
  padding: 1.5em 1em 1em;
}

body.theme-luka .main-layout {
  display: grid;
  grid-template-columns: 16em minmax(0, 1fr);
  gap: 1.5em;
  align-items: start;
}

body.theme-luka .boxed {
  background: var(--panel-bg);
  border-radius: 5px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.05);
  padding: 1em;
}

body.theme-luka .sidebar {
  position: fixed;
  top: 6em;
  left: max(2em, calc(50% - 30em + 2em));
  width: 16em;
  z-index: 10;
}

body.theme-luka .profile-card {
  background: var(--soft-bg);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
  padding: 8px;
  text-align: center;
}

body.theme-luka .image.avatar {
  display: block;
  margin: 0 auto 0.8em;
}

body.theme-luka .image.avatar img {
  width: 100%;
  max-width: 190px;
  aspect-ratio: 1;
  border-radius: 5%;
  object-fit: cover;
}

body.theme-luka .site-name {
  margin: 0;
  color: var(--text);
  font-size: 1.15em;
  font-weight: 600;
  line-height: 1.35;
}

body.theme-luka .site-email {
  margin: 0.2em 0 0.55em;
  color: var(--text);
  font-size: 0.9em;
  word-break: break-all;
}

body.theme-luka .social-icons {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0.35em;
}

body.theme-luka .social-icons a {
  width: 1.7em;
  height: 1.7em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25em;
  line-height: 1;
  white-space: nowrap;
}

body.theme-luka .visitor-card {
  margin: 1.25em auto 0;
  padding: 0.45em;
  border: 1px dashed var(--border);
  border-radius: 4px;
  color: var(--muted);
  text-align: center;
}

body.theme-luka .visitor-card-title {
  margin-bottom: 0.4em;
  color: var(--text);
  font-size: 0.95em;
  font-variant: small-caps;
  letter-spacing: 0.08em;
}

body.theme-luka .visitor-card-body {
  font-size: 0.85em;
  line-height: 1;
}

body.theme-luka .visitor-card-body img {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
}

body.theme-luka .content {
  grid-column: 2;
  min-width: 0;
}

body.theme-luka .section {
  margin-bottom: 2em;
}

body.theme-luka .section-title,
body.theme-luka .page-title {
  margin: 0 0 0.7em;
  padding-bottom: 0.35em;
  border-bottom: 2px solid var(--light-border);
  color: var(--text);
  font-size: 1.5em;
  font-weight: 400;
  line-height: 1.15;
}

body.theme-luka .section-body p,
body.theme-luka .article-body p {
  margin: 0 0 0.7em;
}

body.theme-luka .opportunity-box {
  margin-top: 1em;
  padding: 0.95em 1.1em;
  border-left: 3px solid rgba(160, 32, 32, 0.55);
  border-radius: 8px;
  background: #f4f1ef;
  color: var(--text);
}

body.theme-luka .opportunity-box strong {
  color: #b06b50;
}

body.theme-luka .research-keyword {
  text-decoration-line: underline;
  text-decoration-color: #000000;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.16em;
}

body.theme-luka .timeline-item {
  position: relative;
  margin-left: 1.1em;
  padding-left: 0.8em;
  padding-bottom: 1.1em;
  border-left: 2px solid var(--light-border);
}

body.theme-luka .timeline-item:last-child {
  padding-bottom: 0;
}

body.theme-luka .timeline-item::before {
  content: "";
  position: absolute;
  left: -0.38em;
  top: 0.7em;
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  background: var(--accent);
}

body.theme-luka .experience-item {
  display: flex;
  align-items: flex-start;
  gap: 1.1em;
}

body.theme-luka .institution-logo {
  width: 76px;
  height: 76px;
  flex-shrink: 0;
  object-fit: contain;
  padding: 2px;
}

body.theme-luka .experience-content p {
  margin: 0 0 0.12em;
}

body.theme-luka .exp-title {
  color: var(--text);
}

body.theme-luka .exp-detail,
body.theme-luka .pub-content .author {
  color: var(--muted);
}

body.theme-luka .exp-period,
body.theme-luka .pub-content .periodical,
body.theme-luka .post-date,
body.theme-luka .article-date {
  font-size: 0.9em;
}

body.theme-luka .exp-period {
  color: var(--text);
}

body.theme-luka .pub-content .periodical,
body.theme-luka .post-date,
body.theme-luka .article-date {
  color: var(--muted);
}

body.theme-luka .publications ol.bibliography {
  list-style: none;
  padding: 0;
  margin: 0;
}

body.theme-luka .publications ol.bibliography li {
  margin-bottom: 1em;
  padding-left: 1em;
  border-left: 3px solid var(--light-border);
}

body.theme-luka .pub-content .title {
  color: var(--text);
  font-weight: 600;
}

body.theme-luka .project-card {
  line-height: 1.7;
}

body.theme-luka .project-card + .project-card {
  margin-top: 1.1em;
}

body.theme-luka .news-list {
  margin: 0;
  padding-left: 1.35em;
  font-size: 1.05em;
}

body.theme-luka .news-list li {
  margin-bottom: 0.45em;
  padding-bottom: 0;
}

body.theme-luka .publication-card {
  display: grid;
  grid-template-columns: minmax(180px, 42%) minmax(0, 1fr);
  gap: 1.6em;
  align-items: start;
}

body.theme-luka .publication-preview {
  min-height: 150px;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(160, 32, 32, 0.06), rgba(0, 0, 0, 0.02)),
    var(--soft-bg);
  color: var(--muted);
  text-align: center;
  padding: 1em;
}

body.theme-luka .publication-info h3 {
  margin: 0 0 0.35em;
  color: #2f68c4;
  font-size: 1.18em;
  line-height: 1.35;
}

body.theme-luka .publication-info p {
  margin: 0 0 0.45em;
}

body.theme-luka .publication-authors,
body.theme-luka .publication-venue {
  color: var(--text);
}

body.theme-luka .publication-links {
  margin-top: 1em;
}

body.theme-luka .abstract-button {
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  display: inline;
  color: var(--accent);
  cursor: pointer;
}

body.theme-luka .abstract-button:hover {
  color: var(--accent-hover);
}

body.theme-luka .publication-abstract {
  margin-top: 0.85em;
  color: var(--text);
  font-style: italic;
  line-height: 1.7;
}

body.theme-luka .writing-layout {
  max-width: 68em;
}

body.theme-luka .writing-grid {
  display: grid;
  grid-template-columns: 8em minmax(0, 1fr);
  gap: 1.2em;
  align-items: start;
}

body.theme-luka .year-sidebar {
  position: sticky;
  top: 6em;
  padding: 0.75em 0.55em;
}

body.theme-luka .year-sidebar-title {
  margin-bottom: 0.25em;
  color: var(--text);
  font-size: 1.05em;
  font-variant: small-caps;
}

body.theme-luka .year-sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.15em;
  font-size: 1.15em;
  line-height: 1.45;
}

body.theme-luka .writing-content {
  min-width: 0;
}

body.theme-luka .writing-intro {
  margin-bottom: 1.4em;
}

body.theme-luka .post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

body.theme-luka .post-item {
  margin-bottom: 1.3em;
  padding-bottom: 1.1em;
  border-bottom: 1px solid var(--light-border);
}

body.theme-luka .post-title {
  margin: 0 0 0.2em;
  font-size: 1.12em;
  font-weight: 600;
}

body.theme-luka .post-summary {
  margin: 0.25em 0 0;
  color: var(--text);
}

body.theme-luka .article-header {
  margin-bottom: 1em;
}

body.theme-luka .article-title {
  margin: 0 0 0.35em;
  color: var(--text);
  font-size: 2em;
  font-weight: 400;
  line-height: 1.15;
}

body.theme-luka .article-meta {
  margin: 0;
  color: var(--muted);
}

body.theme-luka .article-body {
  padding-top: 0.5em;
  font-size: 14pt;
}

body.theme-luka .article-body h3 {
  margin: 1.4em 0 0.45em;
  font-size: 1.25em;
  font-weight: 400;
}

body.theme-luka .article-body img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1em auto;
  border-radius: 5px;
}

body.theme-luka .article-body blockquote {
  margin: 1em 0;
  padding: 0.2em 1em;
  border-left: 3px solid var(--light-border);
  color: var(--muted);
}

body.theme-luka .article-body table {
  width: 100%;
  margin: 1em 0;
  border-collapse: collapse;
  font-size: 0.9em;
}

body.theme-luka .article-body th,
body.theme-luka .article-body td {
  padding: 0.45em 0.55em;
  border: 1px solid var(--light-border);
  vertical-align: top;
}

body.theme-luka .article-body th {
  background: var(--soft-bg);
  font-weight: 600;
}

body.theme-luka .article-body code {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

body.theme-luka .article-body pre {
  overflow-x: auto;
  padding: 0.8em;
  background: var(--soft-bg);
  border-radius: 5px;
}

body.theme-luka hr {
  display: block;
  margin: 0.9em 0;
  border: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.2);
}

body.theme-luka .site-footer {
  width: 100%;
  padding: 3em 0 1em;
  color: var(--muted);
  text-align: center;
  font-size: 0.75em;
}

body.theme-luka h1,
body.theme-luka h2,
body.theme-luka h3,
body.theme-luka h4,
body.theme-luka strong {
  color: var(--text);
}

@media all and (max-width: 700px) {
  body.theme-luka .nav-container {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.4em;
  }

  body.theme-luka .nav-title {
    font-size: 135%;
  }

  body.theme-luka .nav-links {
    font-size: 110%;
  }

  body.theme-luka .main-layout {
    grid-template-columns: 1fr;
  }

  body.theme-luka .sidebar {
    position: static;
    width: auto;
  }

  body.theme-luka .content {
    grid-column: auto;
  }

  body.theme-luka .profile-card {
    max-width: 18em;
    margin: 0 auto;
  }

  body.theme-luka .publication-card {
    grid-template-columns: 1fr;
    gap: 1em;
  }

  body.theme-luka .writing-grid {
    grid-template-columns: 1fr;
  }

  body.theme-luka .year-sidebar {
    position: static;
  }

  body.theme-luka .year-sidebar-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.8em;
  }

  body.theme-luka .article-title {
    font-size: 1.55em;
  }
}