.paper-filter-panel {
  padding: clamp(1.25rem, 3vw, 2rem);
  margin: 1rem 0 2.25rem;
  border: 1px solid var(--hc-border);
  border-left: 4px solid var(--hc-accent);
  border-radius: 12px;
  background: var(--hc-surface);
  box-shadow: var(--hc-shadow);
}

.paper-filter-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.paper-filter-heading h2 {
  margin: 0.15rem 0 0;
  padding: 0;
  border: 0;
  font-size: 1.35rem;
}

.paper-filter-heading h2::after {
  display: none;
}

.filter-reset {
  padding: 0.46rem 0.78rem;
  border: 1px solid var(--hc-border);
  border-radius: 6px;
  color: var(--hc-accent);
  background: var(--hc-surface-solid);
  font-size: 0.84rem;
  font-weight: 600;
}

.filter-reset:hover {
  border-color: var(--hc-accent);
}

.paper-search {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.paper-search span,
.filter-label {
  color: var(--hc-heading);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}

.paper-search input {
  width: 100%;
  padding: 0.62rem 0.82rem;
  border: 1px solid var(--hc-border);
  border-radius: 6px;
  color: var(--hc-text);
  background: var(--hc-surface-solid);
  outline: none;
}

.paper-search input:focus {
  border-color: var(--hc-accent);
  box-shadow: 0 0 0 3px var(--hc-accent-soft);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.filter-group .filter-label {
  flex: 0 0 80px;
}

.filter-chip {
  padding: 0.34rem 0.66rem;
  border: 1px solid var(--hc-border);
  border-radius: 5px;
  color: var(--hc-text-soft);
  background: var(--hc-surface-solid);
  font-size: 0.79rem;
  font-weight: 600;
  white-space: nowrap;
  transition: color 150ms ease, background 150ms ease, border-color 150ms ease;
}

.filter-chip:hover {
  color: var(--hc-accent);
  border-color: var(--hc-accent);
}

.filter-chip.active {
  color: #fff;
  border-color: transparent;
  background: var(--hc-accent);
}

.paper-result-count {
  margin-top: 1.15rem;
  color: var(--hc-text-soft);
  font-size: 0.86rem;
  font-weight: 600;
  text-align: right;
}

.pub-listing {
  display: grid;
  gap: 1rem;
  margin: 1.2rem 0 2rem;
}

.pub-item {
  position: relative;
  overflow: hidden;
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--hc-border);
  border-radius: 11px;
  background: var(--hc-surface);
  box-shadow: var(--hc-shadow);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.pub-item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--hc-accent-secondary);
}

.pub-item:hover {
  border-color: color-mix(in srgb, var(--hc-accent) 35%, var(--hc-border));
  box-shadow: var(--hc-shadow-hover);
}

.pub-item[hidden] {
  display: none !important;
}

.pub-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.38rem;
  margin-bottom: 0.8rem;
}

.pub-meta-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.22rem 0.56rem;
  border: 1px solid transparent;
  border-radius: 5px;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.35;
}

.pub-meta-year {
  color: var(--hc-accent-strong);
  border-color: color-mix(in srgb, var(--hc-accent) 22%, transparent);
  background: var(--hc-accent-soft);
}

.pub-meta-venue {
  color: color-mix(in srgb, var(--hc-accent-secondary) 80%, var(--hc-heading));
  border-color: color-mix(in srgb, var(--hc-accent-secondary) 24%, transparent);
  background: var(--hc-accent-soft-2);
}

.pub-meta-topic {
  color: var(--hc-text-soft);
  border-color: var(--hc-border);
  background: var(--hc-surface-muted);
}

.pub-title-heading {
  margin: 0 0 0.6rem;
  font-family: var(--hc-font-heading);
  font-size: clamp(1.12rem, 2vw, 1.35rem);
  font-weight: 700;
  line-height: 1.35;
}

.pub-title-heading a {
  color: var(--hc-heading);
  text-decoration: none;
}

.pub-title-heading a:hover {
  color: var(--hc-accent);
}

.pub-authors {
  margin: 0 0 0.4rem;
  color: var(--hc-text);
  line-height: 1.55;
}

.pub-venue-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.25rem 0.65rem;
  margin: 0;
  color: var(--hc-text-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.pub-doi {
  color: var(--hc-text-soft);
  font-size: 0.85rem;
  overflow-wrap: anywhere;
}

.pub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.pub-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.38rem 0.68rem;
  border: 1px solid var(--hc-border);
  border-radius: 6px;
  color: var(--hc-text) !important;
  background: var(--hc-surface-solid);
  font-size: 0.79rem;
  font-weight: 600;
  line-height: 1.35;
  text-decoration: none;
  transition: border-color 150ms ease, color 150ms ease;
}

.pub-btn:hover {
  color: var(--hc-accent) !important;
  border-color: var(--hc-accent);
}

.btn-pdf i { color: #dc2626; }
.btn-github i,
.btn-code i { color: var(--hc-accent); }
.btn-data i,
.btn-demo i { color: #d97706; }

.quarto-listing-category,
.quarto-listing-category-title {
  display: none !important;
}

@media (max-width: 760px) {
  .paper-filter-heading {
    align-items: flex-start;
  }

  .paper-search,
  .filter-group {
    grid-template-columns: 1fr;
  }

  .filter-label {
    margin-top: 0.35rem;
  }

  .filter-group {
    display: flex;
    flex-wrap: wrap;
  }

  .filter-label {
    flex: 0 0 100%;
  }

  .pub-venue-line {
    display: block;
  }

  .pub-venue-line > * {
    display: block;
    margin-top: 0.28rem;
  }
}