/* ===== Base ===== */
body {
  font-family: 'Noto Sans', sans-serif;
  color: #1f2937;
  scroll-behavior: smooth;
}

html {
  scroll-padding-top: 64px;
}

a {
  color: hsl(204, 86%, 45%);
}

a:hover {
  text-decoration: underline;
}

/* ===== Navbar ===== */
.navbar {
  border-bottom: 1px solid #eee;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(6px);
  position: sticky;
  top: 0;
  z-index: 30;
}

.navbar-title strong {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  color: #111;
}

.navbar-item:hover {
  color: hsl(204, 86%, 45%);
}

/* ===== Publication header ===== */
.publication-header .hero-body {
  padding-top: 4rem;
  padding-bottom: 1rem;
}

.publication-title {
  color: #111;
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  line-height: 1.15;
  margin: 0.5rem 0 1rem !important;
}

.publication-venue {
  color: #555;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
}

.publication-authors {
  margin-top: 0.75rem;
  line-height: 1.8;
}

.publication-authors a {
  color: hsl(204, 86%, 45%) !important;
}

.publication-authors a:hover {
  text-decoration: underline;
}

.author-block {
  display: inline-block;
  margin-right: 0.15rem;
}

.publication-affiliations {
  color: #555;
  margin-top: 0.4rem;
}

.publication-meta {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.publication-meta .tag {
  background: #f3f4f6;
  border-radius: 999px;
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
}

.publication-links {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.link-block a {
  margin: 0;
}

.link-block .is-disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===== Sections ===== */
.section {
  padding: 3.5rem 1.5rem;
}

.section-light {
  background: #f9fafb;
}

h2.title.is-2,
h3.title.is-3 {
  font-family: 'Playfair Display', serif;
}

h2.title.is-2 {
  font-size: 2rem;
  margin-bottom: 1.2rem;
}

/* ===== Framework figure ===== */
.figure-frame {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.25rem;
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.05);
}

.figure-frame img {
  border-radius: 6px;
  width: 100%;
}

.figure-caption {
  color: #555;
  font-size: 0.92rem;
  margin-top: 0.75rem;
  text-align: center;
}

/* ===== Highlight cards ===== */
.highlight-cards {
  margin-top: 1rem;
}

.card-highlight {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.4rem 1.5rem;
  height: 100%;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.card-highlight:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.card-highlight h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  margin: 0.6rem 0 0.4rem;
}

.card-highlight p {
  color: #4b5563;
  font-size: 0.95rem;
  margin-bottom: 0;
}

.icon-large {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: hsl(204, 86%, 95%);
  color: hsl(204, 86%, 45%);
  font-size: 1.2rem;
}

/* ===== Schedule (table) ===== */
.schedule-table-wrapper {
  margin-top: 1.25rem;
  overflow-x: auto;
  border-top: 1px solid #d1d5db;
}

.schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  color: #1f2937;
  background: transparent;
}

.schedule-table thead th {
  text-align: left;
  font-weight: 700;
  color: #111;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #d1d5db;
  background: transparent;
  white-space: nowrap;
}

.schedule-table tbody td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e5e7eb;
  vertical-align: middle;
  text-align: left;
}

.schedule-table tbody tr:hover td {
  background: #f9fafb;
}

.schedule-table .col-time {
  white-space: nowrap;
  width: 22%;
  color: #374151;
  font-variant-numeric: tabular-nums;
}

.schedule-table .col-presenter {
  white-space: nowrap;
  width: 1%;
  color: #374151;
}

.schedule-table .col-section {
  color: #1f2937;
}

.schedule-table .row-break td {
  color: #6b7280;
  font-style: italic;
}

.schedule-link {
  color: hsl(204, 86%, 45%);
  margin-left: 0.35rem;
  text-decoration: none;
  white-space: nowrap;
}

.schedule-link:hover {
  text-decoration: underline;
}

.schedule-link.is-disabled {
  color: #9ca3af;
  cursor: not-allowed;
  pointer-events: none;
}

.tba {
  color: #b45309;
  font-size: 0.85rem;
  font-weight: 500;
  margin-left: 0.4rem;
}

.tba-note {
  color: #6b7280;
  font-size: 0.9rem;
  margin-top: 1rem;
}

/* ===== Presenters ===== */
.presenters {
  margin-top: 1rem;
}

.presenter-card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 1.3rem 1.4rem;
  height: 100%;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.03);
}

.presenter-card h3 {
  font-family: 'Playfair Display', serif;
  margin: 0 0 0.2rem;
  font-size: 1.15rem;
  color: #111;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.presenter-affil {
  color: hsl(204, 86%, 45%);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.presenter-card p {
  font-size: 0.93rem;
  color: #4b5563;
  margin: 0;
}

.contributors {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.contributor {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  font-size: 0.95rem;
  color: #4b5563;
}

.contributor strong {
  color: #111;
  margin-right: 0.25rem;
}

/* ===== Companion Survey ===== */
.survey-card {
  display: flex;
  gap: 1.5rem;
  align-items: stretch;
  margin-top: 1.5rem;
  padding: 1.6rem 1.8rem;
  background: linear-gradient(135deg, #ffffff 0%, #f3f8ff 100%);
  border: 1px solid #e0e7ef;
  border-radius: 16px;
  box-shadow: 0 6px 22px rgba(15, 23, 42, 0.06);
  position: relative;
  overflow: hidden;
}

.survey-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, hsl(204, 86%, 60%), hsl(264, 60%, 60%));
}

.survey-card-left {
  flex: 1;
  min-width: 0;
}

.survey-card-right {
  flex: 0 0 170px;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  justify-content: center;
  align-items: stretch;
}

.survey-badge {
  display: inline-block;
  background: hsl(204, 86%, 45%);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}

.survey-title {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: #111;
  margin: 0.7rem 0 0.55rem;
  line-height: 1.35;
}

.survey-authors {
  color: #4b5563;
  font-size: 0.92rem;
  margin: 0 0 0.55rem;
}

.survey-desc {
  color: #4b5563;
  font-size: 0.95rem;
  margin: 0 0 1rem;
}

.survey-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.survey-pill {
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  color: #fff;
  letter-spacing: 0.02em;
}

.survey-pill-1 { background: linear-gradient(135deg, #38bdf8, #2563eb); }
.survey-pill-2 { background: linear-gradient(135deg, #818cf8, #6366f1); }
.survey-pill-3 { background: linear-gradient(135deg, #c084fc, #a855f7); }

@media (max-width: 768px) {
  .survey-card {
    flex-direction: column;
  }

  .survey-card-right {
    flex: 1;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .survey-pill {
    flex: 1;
    min-width: 100px;
  }
}

/* ===== Related ===== */
.related-list {
  list-style: none;
  padding-left: 0;
  margin-top: 1rem;
}

.related-list li {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-left: 3px solid hsl(204, 86%, 60%);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  font-size: 0.95rem;
  color: #374151;
}

.related-list li strong {
  color: #111;
  margin-right: 0.35rem;
}

/* ===== BibTeX ===== */
pre {
  background: #0f172a;
  color: #e2e8f0;
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  font-size: 0.85rem;
  overflow-x: auto;
}

pre code {
  background: transparent !important;
  color: inherit !important;
  padding: 0;
}

/* ===== Footer ===== */
.footer {
  background: #fff;
  border-top: 1px solid #eee;
  padding: 2.5rem 1.5rem 2.5rem;
}

.footer-links a {
  color: #111;
  font-size: 1.4rem;
  margin: 0 0.6rem;
}

.footer-links a:hover {
  color: hsl(204, 86%, 45%);
}

.footer-note p {
  color: #6b7280;
  font-size: 0.85rem;
  margin-top: 1rem;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .publication-title {
    font-size: 1.85rem !important;
  }

  .schedule-table {
    font-size: 0.9rem;
  }

  .schedule-table thead th,
  .schedule-table tbody td {
    padding: 0.6rem 0.5rem;
  }
}