/* Category badge */
.category-badge {
  display: inline-block;
  padding: 0.25em 0.75em;
  background: var(--color-bg-elevated);
  color: var(--color-ui-text);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: var(--text-small);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.category-badge:hover {
  transform: translateY(-1px);
}

.category-badge[data-category="History"] {
  background: rgba(59, 130, 246, 0.2);
  color: #93c5fd;
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.category-badge[data-category="Science"] {
  background: rgba(34, 197, 94, 0.2);
  color: #86efac;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.category-badge[data-category="Document"] {
  background: rgba(168, 85, 247, 0.2);
  color: #c4b5fd;
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.category-badge[data-category="Exhibition"] {
  background: rgba(251, 146, 60, 0.2);
  color: #fdba74;
  border: 1px solid rgba(251, 146, 60, 0.3);
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  padding: 0.75em 1.5em;
  background: var(--color-bg-elevated);
  color: var(--color-ui-active);
  border: 1px solid var(--color-divider);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-block;
  font-size: var(--text-small);
  font-weight: 500;
}

.btn:hover,
.btn:focus {
  background: var(--color-header-accent);
  border-color: var(--color-header-accent);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn.active {
  background: var(--color-header-accent);
  border-color: var(--color-header-accent);
  color: white;
}

.btn-pdf {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn-pdf svg {
  width: 20px;
  height: 20px;
}

/* Sources section */
.sources {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-divider);
}

.sources h2 {
  font-size: var(--text-h3);
  margin-bottom: var(--space-4);
}

.sources-list {
  list-style: decimal;
  padding-left: var(--space-4);
}

.source-item {
  margin-bottom: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-body-text);
}

.source-text {
  display: inline;
}

.source-link {
  margin-left: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-header-accent);
  text-decoration: none;
}

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

/* Breadcrumbs */
.breadcrumbs {
  font-family: var(--font-sans);
  font-size: var(--text-small);
  margin-bottom: var(--space-4);
  color: var(--color-ui-text);
}

.breadcrumbs a {
  text-decoration: none;
  color: var(--color-ui-text);
}

.breadcrumbs a:hover {
  color: var(--color-ui-active);
  text-decoration: underline;
}

.breadcrumbs span {
  margin: 0 var(--space-1);
}

/* PDF indicator */
.pdf-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-small);
  color: var(--color-header-accent);
}

.pdf-indicator svg {
  width: 16px;
  height: 16px;
}

/* Filter buttons */
.timeline-filters {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.filter-btn {
  /* Inherits from .btn */
}

/* Fade in animation for filtered items */
.fade-in {
  animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Search modal */
.search-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: var(--z-modal);
}

.search-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.search-backdrop {
  position: absolute;
  inset: 0;
}

.search-panel {
  position: relative;
  width: min(720px, 92vw);
  max-height: 80vh;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-divider);
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 1;
  color-scheme: dark;
}

.search-form {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  background: rgba(6, 6, 6, 0.6);
}

.search-input {
  flex: 1;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  color: var(--color-ui-active);
  background: transparent;
  border: 1px solid var(--color-divider);
  border-radius: 6px;
  padding: 0.6em 0.8em;
}

.search-input:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.search-close {
  background: transparent;
  border: 0;
  color: var(--color-ui-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.search-close:hover,
.search-close:focus {
  color: var(--color-ui-active);
}

.search-status {
  font-family: var(--font-sans);
  font-size: var(--text-small);
  color: var(--color-ui-text);
  padding: var(--space-2) var(--space-3) 0;
}

.search-results {
  list-style: none;
  margin: 0;
  padding: var(--space-2) var(--space-3) var(--space-3);
  overflow-y: auto;
  scrollbar-color: var(--color-divider) transparent;
  scrollbar-width: thin;
}

.search-results::-webkit-scrollbar,
.search-panel::-webkit-scrollbar {
  width: 10px;
}

.search-results::-webkit-scrollbar-track,
.search-panel::-webkit-scrollbar-track {
  background: transparent;
}

.search-results::-webkit-scrollbar-thumb,
.search-panel::-webkit-scrollbar-thumb {
  background: var(--color-divider);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: content-box;
}

.search-results::-webkit-scrollbar-thumb:hover,
.search-panel::-webkit-scrollbar-thumb:hover {
  background: var(--color-ui-text);
}

.search-result {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-divider);
}

.search-result:last-child {
  border-bottom: none;
}

.search-result a {
  font-family: var(--font-serif);
  font-size: var(--text-h4);
  color: var(--color-ui-active);
  text-decoration: none;
}

.search-result a:hover,
.search-result a:focus {
  color: var(--color-header-accent);
}

.search-result p {
  margin: var(--space-1) 0 0;
  font-size: var(--text-small);
  color: var(--color-ui-text);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

body.search-open {
  overflow: hidden;
}

/* Contact page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

.contact-card {
  padding: var(--space-4);
  border: 1px solid var(--color-divider);
  border-radius: 12px;
  background: linear-gradient(180deg, #1c1c1c 0%, #141414 100%);
}

.contact-card h2 {
  margin-top: 0;
}

.contact-details {
  display: grid;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.contact-label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-small);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-ui-text);
  margin-bottom: var(--space-1);
}

.contact-label--icon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-label--icon svg {
  flex: 0 0 auto;
  color: var(--color-header-accent);
}

.contact-address {
  font-style: normal;
  margin: 0;
  color: var(--color-body-text);
}

.contact-form {
  display: grid;
  gap: var(--space-3);
}

.contact-field label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-small);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-ui-text);
  margin-bottom: 0.4rem;
}

.contact-field input,
.contact-field textarea {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-ui-active);
  background: rgba(6, 6, 6, 0.6);
  border: 1px solid var(--color-divider);
  border-radius: 6px;
  padding: 0.65em 0.75em;
}

.contact-field textarea {
  resize: vertical;
  min-height: 160px;
}

.contact-field input:focus,
.contact-field textarea:focus {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}

.contact-status {
  font-family: var(--font-sans);
  font-size: var(--text-small);
  color: var(--color-ui-text);
}

.contact-status.is-error {
  color: #fca5a5;
}

.contact-hint {
  margin-top: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-ui-text);
}

.contact-hidden {
  position: absolute;
  left: -9999px;
}

.contact-modal {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
  z-index: var(--z-modal);
}

.contact-modal[aria-hidden="false"] {
  opacity: 1;
  pointer-events: auto;
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
}

.contact-modal__panel {
  position: relative;
  width: min(420px, 92vw);
  background: linear-gradient(180deg, #1c1c1c 0%, #141414 100%);
  border: 1px solid var(--color-divider);
  border-radius: 14px;
  padding: var(--space-4);
  text-align: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.contact-modal__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-2);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 1.6rem;
  font-weight: 700;
  color: #0b0b0b;
  background: var(--color-header-accent);
}

.contact-modal[data-state="error"] .contact-modal__icon {
  background: #f87171;
  color: #1f1f1f;
}

.contact-modal__title {
  margin: 0 0 var(--space-2);
  font-size: var(--text-h4);
  color: var(--color-header-serif);
}

.contact-modal__message {
  margin: 0 0 var(--space-3);
  color: var(--color-body-text);
}

.contact-modal__close {
  min-width: 140px;
}

body.contact-modal-open {
  overflow: hidden;
}

@media (max-width: 900px) {
  .contact-grid {
    gap: var(--space-4);
  }
}