.card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.card--interactive {
  cursor: pointer;
  transition: var(--transition-fast);
}

.card--interactive:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.search-card {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding: var(--space-6) var(--space-11);
}

.publications-search-card {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 28px 32px;
}

.search-box {
  flex: 1;
  max-width: 440px;
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-input);
  line-height: 1.5;
  color: var(--color-input);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-nav);
  border-radius: var(--radius-sm);
  outline: none;
  transition: var(--transition-fast);
}

.search-box:focus {
  border-color: var(--color-input-focus);
}

.search-box::placeholder {
  color: var(--color-input-placeholder);
}

.filter-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  flex: 1;
}

.publications-filter-controls {
  width: 100%;
  flex: 0 0 auto;
  align-items: center;
}

.publications-type-group {
  justify-content: center;
  gap: 10px;
}

.filter-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.filter-btn {
  font-size: var(--font-size-filter);
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border-nav);
  border-radius: var(--radius-pill);
  padding: 6px 12px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover {
  background-color: var(--color-button-hover);
}

.filter-btn.active {
  font-weight: 600;
  background-color: var(--color-button-active);
  color: var(--color-bg);
  border-color: var(--color-button-active);
}

.publication-card {
  display: block;
  padding: var(--space-6) var(--space-11);
  margin-bottom: var(--space-6);
}

.publication-title {
  margin: 0;
  color: #2b3440;
}

.publication-meta {
  margin-top: var(--space-3);
}

.publication-authors {
  margin-top: var(--space-2);
}

.back-link {
  align-self: flex-start;
  margin-bottom: var(--space-9);
}

.back-link:hover {
  color: var(--color-text-strong);
}

.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-nav);
  background: transparent;
  color: var(--color-text);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.site-btn:hover {
  background: var(--color-button-hover);
}

.site-btn--primary {
  background: var(--color-button-active);
  border-color: var(--color-button-active);
  color: var(--color-bg);
}

.site-btn--primary:hover {
  opacity: 0.92;
}

.site-btn--secondary {
  background: transparent;
  color: var(--color-text);
}

.icon-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  color: #a9c2e8;
  transition: var(--transition-fast);
}

.icon-link:hover {
  color: #6f96c9;
  background: rgba(111, 150, 201, 0.08);
  transform: translateY(-1px);
}

.icon-link__icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
}