/* ============================================================
   Academic Website — Stylesheet
   ============================================================
   CSS is driven by the "type" field in each section JSON file.
   Each section gets a class: .section-type-{type}
   e.g.  .section-type-publications
         .section-type-timeline
         .section-type-fundings
         .section-type-awards
         .section-type-list  (generic fallback)
   ============================================================ */

/* ── Variables ────────────────────────────────────────────── */
:root {
  --color-bg:          #ffffff;
  --color-surface:     #f8f9fb;
  --color-border:      #e2e5ea;
  --color-text:        #1a1d23;
  --color-text-muted:  #6b7280;
  --color-accent:      #2563eb;
  --color-accent-soft: #dbeafe;

  /* Publication type badge colours */
  --color-type-journal:    #0d9488;
  --color-type-conference: #7c3aed;
  --color-type-workshop:   #d97706;
  --color-type-preprint:   #64748b;

  --font-sans:   -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono:   'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;

  --radius:      6px;
  --shadow:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:   0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);

  --max-width:   860px;
  --nav-height:  52px;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

svg {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  flex-shrink: 0;
}

ol, ul { list-style: none; }

/* ── Layout helpers ──────────────────────────────────────── */
.header-inner,
.nav-inner,
.section-inner,
.footer-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ── Header ──────────────────────────────────────────────── */
#site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0 40px;
}

.header-inner {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.profile-photo {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-border);
  flex-shrink: 0;
}

.profile-photo--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: #fff;
  font-size: 48px;
  font-weight: 600;
  line-height: 1;
  user-select: none;
}

.header-info { flex: 1; min-width: 0; }

.header-name {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-text);
}

.header-title {
  margin-top: 4px;
  font-size: 1.05rem;
  color: var(--color-accent);
  font-weight: 500;
}

.header-affiliation {
  margin-top: 2px;
  font-size: .9rem;
  color: var(--color-text-muted);
}

.header-bio {
  margin-top: 14px;
  font-size: .93rem;
  color: var(--color-text);
  max-width: 600px;
}

.header-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.profile-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg);
  transition: background .15s, border-color .15s;
}

.profile-link:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  text-decoration: none;
}

.profile-link svg { width: 14px; height: 14px; }

/* ── Stats strip ─────────────────────────────────────────── */
#site-stats {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 24px 0;
}

.stats-inner {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 8px;
  justify-content: space-between;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex: 1;
  min-width: 90px;
  text-align: center;
  padding: 12px 8px;
  border-radius: var(--radius);
  border-top: 3px solid var(--color-border);
  background: var(--color-bg);
  transition: border-color .15s, box-shadow .15s;
}
.stat-card:hover {
  border-top-color: var(--color-accent);
  box-shadow: var(--shadow);
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--color-accent);
  letter-spacing: -0.03em;
}

.stat-label {
  font-size: .72rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

.stat-sub {
  font-size: .68rem;
  color: var(--color-text-muted);
  line-height: 1.3;
}

/* ── Navigation ──────────────────────────────────────────── */
#site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 6px 0;
}

.nav-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 4px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
  transition: color .15s, background .15s;
}

.nav-link svg { width: 13px; height: 13px; opacity: .7; }

.nav-link:hover,
.nav-link--active {
  color: var(--color-accent);
  background: var(--color-accent-soft);
  text-decoration: none;
}
.nav-link--active svg { opacity: 1; }

/* ── Main sections ───────────────────────────────────────── */
#site-main {
  padding-bottom: 80px;
}

.site-section {
  padding: 56px 0 0;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-accent);
  margin-bottom: 28px;
}

.section-heading--toggle {
  cursor: pointer;
  user-select: none;
}
.section-heading--toggle:hover { opacity: .85; }

.section-chevron {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  color: var(--color-text-muted);
  transition: transform .25s ease;
  flex-shrink: 0;
}
.section-chevron svg { width: 18px; height: 18px; }

.site-section--collapsed .section-chevron { transform: rotate(-90deg); }
.site-section--collapsed .section-heading { margin-bottom: 0; border-bottom-style: dashed; }

/* Smooth collapse animation using CSS grid trick */
.section-body-wrapper {
  display: grid;
  grid-template-rows: 1fr;
  transition: grid-template-rows .25s ease;
}
.site-section--collapsed .section-body-wrapper {
  grid-template-rows: 0fr;
}
.section-body { overflow: hidden; }

.section-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 15px;
}
.section-icon svg { width: 15px; height: 15px; }

.empty {
  color: var(--color-text-muted);
  font-style: italic;
}

/* ── Publications ─────────────────────────────────────────── */
.pub-year-group { margin-bottom: 32px; }

.year-marker {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.pub-list { display: flex; flex-direction: column; gap: 16px; }

.pub-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: box-shadow .15s;
}
.pub-item:hover { box-shadow: var(--shadow); }

.pub-type-badge {
  flex-shrink: 0;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 3px;
  margin-top: 3px;
  color: #fff;
  background: var(--color-type-preprint);
}
.pub-type-journal    { background: var(--color-type-journal); }
.pub-type-conference { background: var(--color-type-conference); }
.pub-type-workshop   { background: var(--color-type-workshop); }
.pub-type-preprint   { background: var(--color-type-preprint); }
.pub-type-chapter    { background: #0369a1; }
.pub-type-thesis     { background: #1e293b; }
.pub-type-book       { background: #0f766e; }

.pub-body { flex: 1; min-width: 0; }

.pub-title {
  font-weight: 600;
  font-size: .95rem;
  line-height: 1.4;
  color: var(--color-text);
}
.pub-title a { color: inherit; }
.pub-title a:hover { color: var(--color-accent); text-decoration: underline; }

.pub-authors {
  margin-top: 4px;
  font-size: .85rem;
  color: var(--color-text-muted);
}

.pub-venue {
  margin-top: 3px;
  font-size: .85rem;
  font-style: italic;
  color: var(--color-text-muted);
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.pub-link {
  font-size: .75rem;
  font-weight: 600;
  padding: 2px 8px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  color: var(--color-accent);
  transition: background .12s;
}
.pub-link:hover {
  background: var(--color-accent-soft);
  text-decoration: none;
  border-color: var(--color-accent);
}

/* ── Timeline (conferences & visiting) ──────────────────── */
.timeline {
  position: relative;
  padding-left: 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--color-border);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-bottom: 28px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -21px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
}

.timeline-content {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: box-shadow .15s;
}
.timeline-content:hover { box-shadow: var(--shadow); }

.timeline-heading-row {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.timeline-heading {
  font-weight: 600;
  font-size: .95rem;
  color: var(--color-text);
}
.timeline-heading a { color: inherit; }
.timeline-heading a:hover { color: var(--color-accent); text-decoration: underline; }

/* Timeline badges (e.g. Organizer) */
.timeline-badge {
  display: inline-block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}
.timeline-badge--organizer { background: #dbeafe; color: #1d4ed8; }
.timeline-badge--invited   { background: #dcfce7; color: #15803d; }

.timeline-sub {
  margin-top: 3px;
  font-size: .88rem;
  color: var(--color-text-muted);
}

.timeline-meta {
  margin-top: 5px;
  font-size: .78rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.timeline-desc {
  margin-top: 8px;
  font-size: .87rem;
  color: var(--color-text);
}

/* ── Fundings ─────────────────────────────────────────────── */

/* Category groupings */
.funding-category { margin-bottom: 40px; }
.funding-category:last-child { margin-bottom: 0; }

.funding-category-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-border);
  margin-bottom: 16px;
}

.funding-category-desc {
  font-size: .85rem;
  color: var(--color-text-muted);
  margin-bottom: 14px;
  font-style: italic;
}

/* Item list */
.fundings-list { display: flex; flex-direction: column; gap: 12px; list-style: none; }

/* Item card */
.funding-item {
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: box-shadow .15s;
}
.funding-item:hover { box-shadow: var(--shadow); }
.funding-item--funded { border-left-color: var(--color-accent); }

/* Header row */
.funding-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}
.funding-titles { flex: 1; min-width: 0; }
.funding-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.funding-short-title {
  font-weight: 700;
  font-size: .98rem;
  color: var(--color-text);
}
.funding-full-title {
  margin-top: 3px;
  font-size: .82rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Status badges */
.funding-status {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
}
.funding-status--funded      { background: #dcfce7; color: #15803d; }
.funding-status--recommended { background: #fef3c7; color: #92400e; }
.funding-status--seal        { background: #ede9fe; color: #5b21b6; }

/* Budget badge */
.funding-amount {
  font-weight: 700;
  font-size: .88rem;
  color: var(--color-accent);
  flex-shrink: 0;
  background: var(--color-accent-soft);
  padding: 3px 10px;
  border-radius: var(--radius);
  white-space: nowrap;
  margin-top: 2px;
}

/* Meta line */
.funding-meta {
  margin-top: 8px;
  font-size: .8rem;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
}
.funding-agency-badge {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--color-text);
  color: #fff;
}
.funding-period { color: var(--color-text-muted); }

/* PI / Role lines */
.funding-pi {
  margin-top: 6px;
  font-size: .82rem;
  color: var(--color-text-muted);
}
.funding-pi strong { color: var(--color-text); font-weight: 600; }

/* Partner chips */
.funding-partners-list {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}
.funding-partner-tag {
  font-size: .71rem;
  padding: 2px 9px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 99px;
  color: var(--color-text-muted);
}

/* Description & external link */
.funding-desc {
  margin-top: 10px;
  font-size: .85rem;
  color: var(--color-text);
}
.funding-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-top: 10px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--color-accent);
}
.funding-ext-link:hover { text-decoration: underline; }

/* ── Awards ───────────────────────────────────────────────── */
.awards-list { display: flex; flex-direction: column; gap: 14px; }

.award-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.award-year {
  flex-shrink: 0;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 3px 8px;
  border-radius: var(--radius);
  line-height: 1.6;
  margin-top: 3px;
}

.award-body { flex: 1; }

.award-title {
  font-weight: 600;
  font-size: .95rem;
}

.award-org {
  margin-top: 2px;
  font-size: .85rem;
  color: var(--color-text-muted);
}

.award-desc {
  margin-top: 5px;
  font-size: .87rem;
  color: var(--color-text);
}

/* ── Generic list (fallback) ──────────────────────────────── */
.generic-list { display: flex; flex-direction: column; gap: 12px; }

.generic-item {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.generic-title { font-weight: 600; font-size: .95rem; }
.generic-date  { font-size: .8rem; color: var(--color-text-muted); }
.generic-desc  { margin-top: 5px; font-size: .87rem; }

/* ── Teaching & Supervision ───────────────────────────────── */
.teaching-category { margin-bottom: 36px; }
.teaching-category:last-child { margin-bottom: 0; }

.teaching-category-label {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--color-border);
  margin-bottom: 16px;
}

.teaching-list { display: flex; flex-direction: column; gap: 10px; list-style: none; }

/* Teaching card */
.teaching-item {
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: box-shadow .15s;
}
.teaching-item:hover { box-shadow: var(--shadow); }

.teaching-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.teaching-title {
  font-weight: 600;
  font-size: .95rem;
  color: var(--color-text);
  flex: 1;
}
.teaching-meta {
  margin-top: 5px;
  font-size: .8rem;
  color: var(--color-text-muted);
}
.teaching-sessions {
  margin-top: 3px;
  font-size: .77rem;
  color: var(--color-text-muted);
  font-style: italic;
}
.teaching-desc {
  margin-top: 7px;
  font-size: .87rem;
  color: var(--color-text);
}

/* Teaching type badges */
.teach-badge {
  display: inline-block;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
  margin-top: 2px;
}
.teach-badge--seminar { background: #ede9fe; color: #5b21b6; }
.teach-badge--course  { background: #e0f2fe; color: #0369a1; }
.teach-badge--invited { background: #dcfce7; color: #15803d; }

/* Supervision card */
.supervision-item {
  padding: 13px 16px;
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: box-shadow .15s;
}
.supervision-item:hover { box-shadow: var(--shadow); }
.supervision-item--ongoing { border-left-color: var(--color-accent); }

.supervision-header {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.supervision-name {
  font-weight: 700;
  font-size: .95rem;
  color: var(--color-text);
  flex: 1;
}
.supervision-thesis {
  margin-top: 5px;
  font-size: .88rem;
  font-style: italic;
  color: var(--color-text);
}
.supervision-meta {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.supervision-programme,
.supervision-supervisors {
  font-size: .8rem;
  color: var(--color-text-muted);
}
.supervision-supervisors strong { color: var(--color-text); font-weight: 600; }

/* Level badges (PhD / MSc) */
.supv-level {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 3px;
  color: #fff;
  white-space: nowrap;
}
.supv-level--phd { background: #1e293b; }
.supv-level--msc { background: #0369a1; }

/* Status badges (Ongoing / Completed) */
.supv-status {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 99px;
  white-space: nowrap;
}
.supv-status--ongoing   { background: #fef3c7; color: #92400e; }
.supv-status--completed { background: #ccfbf1; color: #0d9488; }

/* ── Footer ───────────────────────────────────────────────── */
#site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  margin-top: 64px;
}

.footer-inner {
  text-align: center;
  font-size: .82rem;
  color: var(--color-text-muted);
}

/* ── Error state ──────────────────────────────────────────── */
.load-error {
  max-width: var(--max-width);
  margin: 48px auto;
  padding: 24px;
  background: #fff3cd;
  border: 1px solid #ffc107;
  border-radius: var(--radius);
  font-size: .9rem;
}
.load-error strong { display: block; font-size: 1rem; margin-bottom: 8px; }
.load-error code {
  font-family: var(--font-mono);
  background: #fff;
  padding: 1px 5px;
  border-radius: 3px;
  border: 1px solid #ddd;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .header-links { justify-content: center; }
  .header-bio   { max-width: 100%; }

  .pub-item { flex-direction: column; gap: 8px; }
  .pub-type-badge { align-self: flex-start; }

  .funding-header { flex-direction: column; gap: 8px; }

  .timeline { padding-left: 18px; }
}

/* ── Print ────────────────────────────────────────────────── */
@media print {
  #site-nav     { display: none; }
  #site-footer  { display: none; }
  .site-section { padding-top: 32px; }
  a             { color: inherit; text-decoration: none; }

  .pub-item,
  .timeline-content,
  .funding-item { box-shadow: none; border-color: #ccc; }
}