body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #222;
  padding-bottom: 2rem;
}

html {
  scroll-behavior: smooth;
}

/* ── Navbar ─────────────────────────────────────────────────── */

.navbar {
  border-bottom: 1px solid #ddd;
  font-size: 0.92rem;
}
.navbar-brand {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: bold;
  font-size: 1.15rem;
  color: #333 !important;
}
.navbar-wrapper {
  max-width: 900px;
}
.nav-link {
  color: #2a7f7f !important;
  padding-left: 0.85rem !important;
  padding-right: 0.85rem !important;
}
.nav-link:hover {
  color: #1d5c5c !important;
}
.nav-link.active {
  color: #134040 !important;
  font-weight: 600;
  border-bottom: 2px solid #2a7f7f;
}
/* ── Content layout ─────────────────────────────────────────── */

.content-wrapper {
  max-width: 900px;
  margin-top: 1.5rem;
}

/* ── Typography ─────────────────────────────────────────────── */

h1, h2, h3 {
  font-family: Georgia, "Times New Roman", serif;
  color: #2a7f7f;
  padding-bottom: 0.2em;
  border-bottom: 1px solid #aaa;
  margin-top: 1.4em;
  margin-bottom: 0.4em;
}
h1 { font-size: 1.65em; }
h2 { font-size: 1.25em; }
h3 { font-size: 1.1em; border-bottom: none; }

a { color: #1d5c5c; text-decoration: none; }
a:hover { text-decoration: underline; }

p { line-height: 1.45; margin-bottom: 0.8em; }

ul { line-height: 1.45; }

/* ── Page title ─────────────────────────────────────────────── */

.page-title {
  text-align: center;
  font-size: 1.8em;
  border-bottom: none;
  margin-bottom: 0.8em;
}

/* ── Callout ────────────────────────────────────────────────── */

.callout {
  border-left: 3px solid #2a7f7f;
  background: #f0f7f7;
  padding: 0.7em 1em;
  margin: 1em 0 1.2em;
  border-radius: 0 4px 4px 0;
  line-height: 1.5;
}
.callout p { margin-bottom: 0; }
.callout p + p { margin-top: 0.5em; }

/* ── Event cards ────────────────────────────────────────────── */

.event-card {
  border: 1px solid #dde3ec;
  border-left: 4px solid #2a7f7f;
  border-radius: 8px;
  padding: 0;
  margin-bottom: 1em;
  cursor: pointer;
}
.event-card-header {
  display: flex;
  align-items: baseline;
  gap: 1em;
  padding: 0.8rem 1.1rem;
  text-decoration: none;
  color: inherit;
  flex-wrap: nowrap;
}
.event-card-header:hover {
  background: #f8f9fb;
  text-decoration: none;
  border-radius: 0 7px 7px 0;
}
.event-card-title {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: bold;
  color: #333;
  font-size: 1.05rem;
}
.event-card-meta {
  color: #666;
  font-size: 0.9em;
  white-space: nowrap;
  margin-left: auto;
}
.event-card > .collapse,
.event-card > .collapsing {
  padding: 0 1.1rem 0.8rem;
}
.event-card h2 {
  border-bottom: none;
  margin-top: 0.5em;
}

/* ── Event photo ────────────────────────────────────────────── */

.event-photo {
  width: 100%;
  border-radius: 4px;
  margin-bottom: 1.5em;
}

/* ── Program table ──────────────────────────────────────────── */

#program {
  border-bottom: none;
}
.program-hint {
  color: #888;
  font-size: 0.88em;
  margin-bottom: 0.6em;
}

.program-table {
  width: 100%;
  border-top: 1px solid #aaa;
  border-bottom: 1px solid #aaa;
  border-collapse: collapse;
  margin-bottom: 1.5em;
}
.program-table td {
  padding: 0.6em 0.8em;
  border-top: 1px solid #dde3ec;
  vertical-align: top;
  line-height: 1.4;
}
.program-table tr:first-child td {
  border-top: none;
}
.program-table .time-col {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  color: #555;
  min-width: 90px;
  width: 100px;
}
.program-table .break-row td {
  background: #f8f9fa;
  color: #666;
  font-style: italic;
}
.affiliation {
  color: #666;
}

/* ── Icons ──────────────────────────────────────────────────── */

.iconbox {
  float: right;
  white-space: nowrap;
  min-width: 70px;
  text-align: right;
}
img.pubicon {
  vertical-align: middle;
  height: 18px;
  padding-left: 2px;
  padding-right: 2px;
}
img.notpresent {
  visibility: hidden;
}
.iconbox a {
  opacity: 0.65;
  transition: opacity 0.15s;
}
.iconbox a:hover {
  opacity: 1;
  text-decoration: none;
}

/* ── Inline abstracts (collapsible) ─────────────────────────── */

.abstract-card {
  margin-top: 0.5em;
  padding: 0.5em 0.8em;
  line-height: 1.4;
  text-align: justify;
  font-size: 0.88em;
}
.abstract-card p {
  margin-bottom: 0.6em;
}
.abstract-card p:last-child {
  margin-bottom: 0;
}
.abstract-card ul {
  margin-top: 0.1em;
  margin-bottom: 0.5em;
}

/* ── Responsive ─────────────────────────────────────────────── */

@media (max-width: 768px) {
  .program-table .time-col {
    min-width: 70px;
    width: auto;
    font-size: 0.85em;
  }
  .iconbox {
    float: none;
    display: block;
    text-align: left;
    margin-top: 0.3em;
  }
  .event-card-header {
    flex-wrap: wrap;
    gap: 0.2em 1em;
  }
  .event-card-meta {
    margin-left: 0;
  }
}

@media print {
  .navbar { display: none; }
}