:root {
  --color-bg: #ffffff;
  --color-bg-alt: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-muted: #666666;
  --color-accent: #2c5282;
  --color-on-accent: #ffffff;
  --color-border: #eeeeee;
  --color-border-strong: #cccccc;
  --color-overlay: rgba(0, 0, 0, 0.5);
  --color-tooltip-bg: #1a1a1a;
  --color-tooltip-text: #ffffff;
}

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --max-width: 1150px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: 0.5rem 1rem;
  border-radius: 0 0 6px 0;
  z-index: 100;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

a { color: var(--color-accent); }

a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.site-title { font-weight: 600; }

.nav-links a {
  margin-left: 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  padding-bottom: 0.25rem;
}

.nav-links a.active {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
}

section + section { margin-top: 2.5rem; }

.hero { background: var(--color-bg-alt); padding: 2.5rem 1.5rem; border-radius: 8px; }

.hero-inner { display: flex; align-items: center; gap: 1.5rem; }
.hero-logo { width: 72px; height: 72px; object-fit: contain; flex-shrink: 0; border-radius: 8px; }
.hero-text { flex: 1; min-width: 200px; }
.hero-text h1, .hero-text p { margin: 0; }
.hero-text p { margin-top: 0.5rem; }

@media (max-width: 700px) {
  .hero-inner { flex-direction: column; align-items: flex-start; }
}

footer {
  max-width: var(--max-width);
  margin: 2rem auto;
  padding: 1.5rem;
  color: var(--color-muted);
}

.empty-state, .error-state { color: var(--color-muted); }

@media (max-width: 700px) {
  .site-nav { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .nav-links a { margin-left: 0; margin-right: 1rem; }
}

.member-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

.member-card {
  text-align: center;
  padding: 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.avatar, .avatar-fallback {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  margin: 0 auto 0.75rem;
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 1.25rem;
}

.member-card h3 { margin: 0.25rem 0; font-size: 1rem; }
.member-card .affiliation { color: var(--color-muted); font-size: 0.9rem; margin: 0.25rem 0; }

@media (max-width: 700px) {
  .member-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

.member-list { list-style: none; margin: 0; padding: 0; }
.member-list-item {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  flex-wrap: wrap;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}
.member-list-item .affiliation { color: var(--color-muted); font-size: 0.9rem; }

.event-list { list-style: none; margin: 0; padding: 0; }
.event-item {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}
.event-date { color: var(--color-muted); font-variant-numeric: tabular-nums; min-width: 6.5rem; }
.badge.upcoming {
  background: var(--color-accent);
  color: var(--color-on-accent);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.list-controls { display: flex; gap: 1rem; margin-bottom: 1rem; flex-wrap: wrap; }
.filter-input { flex: 1; min-width: 200px; padding: 0.5rem 0.75rem; border: 1px solid var(--color-border-strong); border-radius: 6px; background: var(--color-surface); color: var(--color-text); }
.view-toggle-btn { padding: 0.5rem 1rem; border: 1px solid var(--color-accent); color: var(--color-accent); background: var(--color-surface); border-radius: 6px; cursor: pointer; }
#publication-sort-controls { align-items: center; gap: 0.5rem; }
.sort-select { padding: 0.5rem 0.75rem; border: 1px solid var(--color-border-strong); border-radius: 6px; background: var(--color-surface); color: var(--color-text); }

#graph-view { border: 1px solid var(--color-border); border-radius: 8px; overflow: hidden; }
#graph-svg { width: 100%; height: 600px; display: block; }

.node-dimmed { opacity: 0.15; }

.project-box rect { fill: var(--color-accent); }
.project-box text { fill: var(--color-on-accent); font-size: 12px; pointer-events: none; }
.scholar-circle circle { stroke: var(--color-surface); stroke-width: 2px; }
.scholar-circle image { clip-path: circle(50%); }

.scholar-tooltip {
  position: fixed;
  transform: translate(-50%, -120%);
  background: var(--color-tooltip-bg);
  color: var(--color-tooltip-text);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  white-space: nowrap;
  z-index: 10;
}
.scholar-tooltip[hidden] { display: none; }
.scholar-tooltip a { color: var(--color-tooltip-text); text-decoration: underline; }

.modal {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal[hidden] { display: none; }
.modal-content {
  background: var(--color-surface);
  border-radius: 8px;
  padding: 1.5rem;
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
}
.modal-content img { width: 100%; border-radius: 6px; margin-bottom: 1rem; }
#modal-close {
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  border: none;
  background: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

#project-list { list-style: none; margin: 0; padding: 0; }
#project-list li { padding: 1rem 0; border-bottom: 1px solid var(--color-border); }
#project-list .participants a { margin-right: 0.5rem; }

.news-list { list-style: none; margin: 0; padding: 0; }
.news-item {
  display: flex;
  gap: 1rem;
  align-items: baseline;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
}
.news-date { color: var(--color-muted); font-variant-numeric: tabular-nums; min-width: 6.5rem; }

.publication-list { list-style: none; margin: 0; padding: 0; }
.publication-item {
  padding: 0.75rem 0 0.75rem 1.5em;
  text-indent: -1.5em;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.publication-item .csl-left-margin,
.publication-item .csl-right-inline { display: inline; text-indent: 0; }

.doc-content { line-height: 1.6; }
.doc-content h1, .doc-content h2, .doc-content h3 { margin-top: 1.5rem; }
.doc-content h1:first-child, .doc-content h2:first-child, .doc-content h3:first-child { margin-top: 0; }
.doc-content img { max-width: 100%; }

.landing-columns {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  align-items: start;
  margin-top: 2.5rem;
}

.landing-sidebar { display: flex; flex-direction: column; gap: 2rem; }

.landing-box {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.5rem;
}
.landing-box > :first-child { margin-top: 0; }

.landing-sidebar .event-item,
.landing-sidebar .news-item {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
}
.landing-sidebar .publication-item { font-size: 0.9rem; }
.landing-sidebar .event-date,
.landing-sidebar .news-date {
  min-width: 0;
}

@media (max-width: 700px) {
  .landing-columns { grid-template-columns: 1fr; }
}

#page-back-link:empty { display: none; }
#page-back-link {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.member-projects-link,
.member-publications-link { font-size: 0.9rem; }
.member-card .member-projects-link + .member-publications-link { margin-left: 0.75rem; }
/* In the list view, the first link pushes the links to the right edge. */
.member-list-item .affiliation + a,
.member-list-item .name + a { margin-left: auto; }

.member-focus-banner {
  margin: 0 0 1rem;
  padding: 0.5rem 0.75rem;
  background: var(--color-bg-alt);
  border-radius: 6px;
}
.member-focus-banner[hidden] { display: none; }
.link-button {
  background: none;
  border: none;
  padding: 0;
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
  font: inherit;
}
.participant-focused { font-weight: bold; }

.form-message, .form-error {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-alt);
  color: var(--color-text);
  margin: 1rem 0;
}
.form-error { border-color: var(--color-accent); border-width: 2px; border-left-width: 6px; font-weight: 600; }

/* ?edit mode (public edit build) */
.edit-banner { background: var(--color-bg-alt); border: 1px solid var(--color-border); border-radius: 6px; padding: 0.5rem 0.75rem; margin: 0.5rem 0; }
.edit-button, .edit-add-button {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  color: var(--color-accent);
  background: var(--color-surface);
  font-size: 0.85rem;
  text-decoration: none;
}
.edit-button:hover, .edit-add-button:hover { background: var(--color-accent); color: var(--color-on-accent); }

/* Public edit form (edit.html): one column, label above each control */
#edit-form { display: grid; gap: 1rem; max-width: 36rem; margin-top: 1.25rem; }
#edit-form .field { display: flex; flex-direction: column; gap: 0.3rem; }
#edit-form label { font-weight: 600; }
#edit-form .field-help { font-size: 0.85rem; color: var(--color-muted); }
#edit-form input, #edit-form textarea, #edit-form select {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-text);
  font: inherit;
}
#edit-form input:focus-visible, #edit-form textarea:focus-visible, #edit-form select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}
#edit-form .array-row, #edit-form .participant-list li, #edit-form .participant-search-results div {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
#edit-form .array-row input { flex: 1; }
#edit-form .participant-list { list-style: none; margin: 0 0 0.5rem; padding: 0; }
#edit-form .participant-list li, #edit-form .participant-search-results div { justify-content: space-between; padding: 0.25rem 0; }
#edit-form .participant-search-results { margin-top: 0.4rem; }
#edit-form button {
  align-self: flex-start;
  padding: 0.45rem 1rem;
  border: 1px solid var(--color-accent);
  border-radius: 6px;
  background: var(--color-surface);
  color: var(--color-accent);
  font: inherit;
  cursor: pointer;
}
#edit-form button[type="submit"] { background: var(--color-accent); color: var(--color-on-accent); }
#edit-form button:hover:not([type="submit"]) { background: var(--color-bg-alt); }
#edit-form button:disabled { opacity: 0.6; cursor: default; }