/* ==========================================================================
   ORENOKE ARCHAEOLOGICAL SURVEY — Design System & Component Styles
   ========================================================================== */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  --color-bg:           #F5F1EB;
  --color-bg-dark:      #1C1A17;
  --color-text:         #2A2620;
  --color-text-muted:   #6B6257;
  --color-accent:       #8B4513;
  --color-accent-light: #C4956A;
  --color-border:       #D4C9B8;
  --color-surface:      #EDE7DC;
  --color-map-marker:   #8B4513;
  --color-eligible:     #2D5A27;
  --color-not-eligible: #7A3B2E;
  --color-undated:      #4A5568;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --max-width: 1200px;
  --section-pad: 80px;
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-light); }

h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
h2 { font-size: 2.4rem; margin-bottom: 0.6em; }
h3 { font-size: 1.6rem; margin-bottom: 0.5em; }

p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* --- Utility Classes --- */
.mono { font-family: var(--font-mono); }
.serif-italic { font-family: var(--font-display); font-style: italic; }
.text-muted { color: var(--color-text-muted); }
.site-id-badge {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
}

/* ==========================================================================
   1. NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: rgba(245, 241, 235, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text);
}
.navbar.scrolled .navbar__logo { color: var(--color-text); }
.navbar:not(.scrolled) .navbar__logo { color: #F5F1EB; }

.navbar__logo svg { width: 28px; height: 28px; flex-shrink: 0; }
.navbar__logo span {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}
.navbar__links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color var(--transition);
}
.navbar:not(.scrolled) .navbar__links a { color: rgba(245,241,235,0.7); }
.navbar:not(.scrolled) .navbar__links a:hover { color: #F5F1EB; }
.navbar.scrolled .navbar__links a { color: var(--color-text-muted); }
.navbar.scrolled .navbar__links a:hover { color: var(--color-accent); }

.navbar__badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid;
  border-radius: 3px;
}
.navbar:not(.scrolled) .navbar__badge { color: rgba(245,241,235,0.5); border-color: rgba(245,241,235,0.25); }
.navbar.scrolled .navbar__badge { color: var(--color-text-muted); border-color: var(--color-border); }

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}
.navbar:not(.scrolled) .navbar__hamburger span { background: #F5F1EB; }

/* Mobile nav */
.navbar__mobile-menu {
  display: none;
  position: fixed;
  top: 60px; left: 0; right: 0;
  background: rgba(245,241,235,0.97);
  backdrop-filter: blur(12px);
  padding: 20px 24px;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.navbar__mobile-menu.open { display: flex; }
.navbar__mobile-menu a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 8px 0;
}

/* ==========================================================================
   2. HERO / COVER
   ========================================================================== */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  background: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Topographic contour SVG background */
.hero__topo {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  overflow: hidden;
}
.hero__topo svg {
  width: 100%;
  height: 100%;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 900px;
}

.hero__district {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(245,241,235,0.45);
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease 0.3s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  color: #F5F1EB;
  line-height: 1.1;
  margin-bottom: 20px;
  opacity: 0;
  transform: translateY(30px);
  animation: heroFadeIn 0.9s ease 0.6s forwards;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: 1.15rem;
  color: rgba(245,241,235,0.65);
  margin-bottom: 30px;
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease 0.9s forwards;
}

.hero__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(245,241,235,0.35);
  margin-bottom: 50px;
  opacity: 0;
  transform: translateY(15px);
  animation: heroFadeIn 0.7s ease 1.2s forwards;
}

.hero__scroll {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: rgba(245,241,235,0.4);
  text-decoration: none;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: heroFadeIn 0.6s ease 1.5s forwards;
}
.hero__scroll .arrow {
  font-size: 1.2rem;
  animation: pulse 2s ease-in-out infinite;
}

.hero__coords {
  position: absolute;
  bottom: 24px;
  right: 32px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(245,241,235,0.2);
  letter-spacing: 0.06em;
}

@keyframes heroFadeIn {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: translateY(0); }
  50% { opacity: 0.8; transform: translateY(6px); }
}

/* ==========================================================================
   3. PROJECT OVERVIEW
   ========================================================================== */
.overview {
  padding: var(--section-pad) 0;
}
.overview__grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: start;
}

.overview__sidebar {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 24px;
  position: sticky;
  top: 80px;
}
.overview__sidebar dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
}
.overview__sidebar dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.overview__sidebar dd {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-text);
}

.overview__narrative h2 {
  margin-bottom: 1rem;
}

.key-findings {
  background: var(--color-surface);
  border-left: 3px solid var(--color-accent);
  padding: 20px 24px;
  margin-top: 2rem;
  border-radius: 0 4px 4px 0;
}
.key-findings h4 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.key-findings ul {
  list-style: disc;
  padding-left: 18px;
}
.key-findings li {
  margin-bottom: 6px;
  font-size: 0.92rem;
}

/* ==========================================================================
   4. TIMELINE
   ========================================================================== */
.timeline-section {
  padding: var(--section-pad) 0;
  background: var(--color-surface);
  overflow: hidden;
}
.timeline-section h2 { text-align: center; }
.timeline-section > .container > p { text-align: center; color: var(--color-text-muted); margin-bottom: 2rem; }

.timeline-wrapper {
  overflow-x: auto;
  padding: 20px 0 40px;
  -webkit-overflow-scrolling: touch;
}
.timeline-wrapper::-webkit-scrollbar { height: 6px; }
.timeline-wrapper::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 3px; }

.timeline {
  display: flex;
  min-width: 1000px;
  position: relative;
  height: 180px;
  align-items: flex-start;
}

.timeline__phase {
  flex: 1;
  position: relative;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-right: 1px solid rgba(0,0,0,0.08);
  transition: var(--transition);
}
.timeline__phase:last-child { border-right: none; }

.timeline__phase-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  text-align: center;
  padding: 0 8px;
  line-height: 1.3;
}
.timeline__phase-dates {
  display: block;
  font-size: 0.6rem;
  opacity: 0.6;
  margin-top: 2px;
}

.timeline__phase--emergence { background: var(--color-accent-light); }
.timeline__phase--classic   { background: var(--color-accent); }
.timeline__phase--stress    {
  background: #5C3A1E;
  background-image: repeating-linear-gradient(
    45deg, transparent, transparent 4px, rgba(0,0,0,0.15) 4px, rgba(0,0,0,0.15) 6px
  );
}
.timeline__phase--late      { background: #8C7B6B; }
.timeline__phase--pre       { background: #9E9689; }
.timeline__phase--post      { background: #9E9689; }

/* Tooltip */
.timeline__tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-dark);
  color: #F5F1EB;
  font-family: var(--font-body);
  font-size: 0.82rem;
  line-height: 1.5;
  padding: 14px 18px;
  border-radius: 4px;
  width: 280px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 10;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}
.timeline__tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-bg-dark);
}
.timeline__phase:hover .timeline__tooltip {
  opacity: 1;
  visibility: visible;
}

/* Site dots */
.timeline__sites {
  position: absolute;
  bottom: 0;
  left: 0; right: 0;
  height: 80px;
  display: flex;
  align-items: center;
}

.timeline__site-dot {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
  border: 2px solid rgba(255,255,255,0.8);
  z-index: 5;
}
.timeline__site-dot:hover {
  transform: scale(1.4);
  box-shadow: 0 0 0 4px rgba(139,69,19,0.3);
}
.timeline__site-dot-label {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  white-space: nowrap;
  color: var(--color-text-muted);
  margin-top: 4px;
  pointer-events: none;
}

/* ==========================================================================
   5. REGIONAL MAP
   ========================================================================== */
.regional-map-section {
  padding: 0;
}
.regional-map-section h2 {
  text-align: center;
  padding-top: var(--section-pad);
  padding-bottom: 1rem;
}
.regional-map-section > .container > p {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

#overview-map {
  width: 100%;
  height: 600px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* Map sidebar popup */
.map-sidebar {
  position: absolute;
  top: 0;
  right: -380px;
  width: 360px;
  height: 100%;
  background: rgba(245,241,235,0.97);
  backdrop-filter: blur(6px);
  z-index: 800;
  padding: 24px;
  transition: right 0.35s ease;
  overflow-y: auto;
  box-shadow: -4px 0 16px rgba(0,0,0,0.1);
  border-left: 1px solid var(--color-border);
}
.map-sidebar.open { right: 0; }

.map-sidebar__close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 4px;
  line-height: 1;
}
.map-sidebar__id {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.map-sidebar h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 10px;
}
.map-sidebar__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.map-sidebar__tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 3px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-transform: uppercase;
}
.map-sidebar__tag--eligible { color: var(--color-eligible); border-color: var(--color-eligible); }
.map-sidebar__tag--not-eligible { color: var(--color-not-eligible); border-color: var(--color-not-eligible); }

.map-sidebar__desc {
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 20px;
  color: var(--color-text);
}
.map-sidebar__link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.map-sidebar__link:hover { color: var(--color-accent-light); }

/* Override Leaflet popup style */
.leaflet-container { font-family: var(--font-body); }

/* Map wrapper for relative positioning of sidebar */
.map-wrapper {
  position: relative;
  overflow: hidden;
}

/* ==========================================================================
   6. SCROLLYTELLING SIDECAR
   ========================================================================== */
.sidecar {
  position: relative;
  display: flex;
  min-height: 100vh;
}

.sidecar__narrative {
  width: 45%;
  position: relative;
  z-index: 2;
  background: var(--color-bg);
}

.sidecar__map-panel {
  width: 55%;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 1;
}
#sidecar-map {
  width: 100%;
  height: 100%;
}

.sidecar__site {
  min-height: 100vh;
  padding: 80px 40px 120px;
  opacity: 0.3;
  transition: opacity 0.5s ease;
}
.sidecar__site.active { opacity: 1; }

.sidecar__site-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--color-accent);
  color: #F5F1EB;
  padding: 5px 12px;
  border-radius: 3px;
  margin-bottom: 16px;
}

.sidecar__site-name {
  font-family: var(--font-display);
  font-size: 2rem;
  margin-bottom: 12px;
}

.sidecar__site-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.sidecar__site-meta span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
}
.sidecar__site-meta .status-eligible { color: var(--color-eligible); border-color: var(--color-eligible); }
.sidecar__site-meta .status-not-eligible { color: var(--color-not-eligible); border-color: var(--color-not-eligible); }

.sidecar__text p {
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 1rem;
}

/* Field Notes Callout */
.field-notes {
  background: #FEFCF8;
  border-left: 3px solid var(--color-accent);
  padding: 18px 20px;
  margin: 24px 0;
  transform: rotate(-0.5deg);
  box-shadow: 2px 2px 8px rgba(0,0,0,0.06);
  position: relative;
}
.field-notes::before {
  content: 'FIELD NOTES';
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 8px;
}
.field-notes p {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.65;
  color: var(--color-text);
}

/* Artifact highlight */
.artifact-highlight {
  margin: 24px 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 20px;
}
.artifact-highlight__title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}
.artifact-highlight svg {
  max-width: 260px;
  margin: 0 auto 12px;
}
.artifact-highlight__caption {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.5;
}

/* Photo placeholder */
.photo-placeholder {
  margin: 24px 0;
  border: 2px solid var(--color-text);
  padding: 6px;
  background: #1a1a1a;
  position: relative;
}
.photo-placeholder__inner {
  background: #2a2a2a;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
/* Corner marks */
.photo-placeholder__inner::before,
.photo-placeholder__inner::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(255,255,255,0.3);
}
.photo-placeholder__inner::before { top: 8px; left: 8px; border-right: none; border-bottom: none; }
.photo-placeholder__inner::after { bottom: 8px; right: 8px; border-left: none; border-top: none; }

.photo-placeholder__label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.photo-placeholder figcaption {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-text-muted);
  padding: 8px 0 0;
  text-align: center;
  background: var(--color-bg);
}

/* Section divider between sidecar sites */
.sidecar__divider {
  width: 40px;
  height: 1px;
  background: var(--color-border);
  margin: 0 auto 40px;
}

/* ==========================================================================
   7. BEFORE/AFTER SWIPE
   ========================================================================== */
.swipe-section {
  padding: var(--section-pad) 0;
  background: var(--color-surface);
}
.swipe-section h2 { text-align: center; }
.swipe-section > .container > p {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.swipe-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  height: 500px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  cursor: ew-resize;
  user-select: none;
  background: #fff;
}

.swipe-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.swipe-layer--after {
  clip-path: inset(0 0 0 50%);
}

.swipe-label {
  position: absolute;
  bottom: 16px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: rgba(245,241,235,0.9);
  padding: 4px 10px;
  border-radius: 3px;
}
.swipe-label--before { left: 16px; }
.swipe-label--after { right: 16px; }

.swipe-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--color-accent);
  z-index: 10;
  transform: translateX(-50%);
  cursor: ew-resize;
}
.swipe-handle__grip {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.swipe-handle__grip svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: #fff;
  stroke-width: 2;
}

/* ==========================================================================
   8. SITE CATALOG
   ========================================================================== */
.catalog-section {
  padding: var(--section-pad) 0;
}
.catalog-section h2 { text-align: center; }
.catalog-section > .container > p.catalog-desc {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 700px;
  margin: 0 auto 2rem;
}

.catalog-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}
.catalog-filters button {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.catalog-filters button:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.catalog-filters button.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.catalog-status-filters {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 2rem;
}
.catalog-status-filters button {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: var(--transition);
}
.catalog-status-filters button:hover { border-color: var(--color-accent); color: var(--color-accent); }
.catalog-status-filters button.active { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.catalog-sort {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 1.5rem;
  align-items: center;
}
.catalog-sort label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.catalog-sort select {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 4px 8px;
  border: 1px solid var(--color-border);
  border-radius: 3px;
  background: var(--color-surface);
  color: var(--color-text);
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.catalog-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.catalog-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}
.catalog-card.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
  visibility: hidden;
}

.catalog-card__bar {
  height: 4px;
  width: 100%;
}
.catalog-card__bar--habitation   { background: var(--color-accent); }
.catalog-card__bar--mortuary     { background: #6B4E3D; }
.catalog-card__bar--rockart      { background: var(--color-undated); }
.catalog-card__bar--lithic       { background: #8B8070; }
.catalog-card__bar--defensive    { background: #5C3A1E; }
.catalog-card__bar--ceremonial   { background: var(--color-accent-light); }

.catalog-card__body {
  padding: 20px;
}

.catalog-card__id {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.catalog-card__name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--color-text);
}
.catalog-card__icon {
  float: right;
  width: 32px;
  height: 32px;
  margin-left: 8px;
}
.catalog-card__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: var(--color-accent);
  stroke-width: 1.5;
}

.catalog-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.catalog-card__meta span {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 2px 8px;
  background: var(--color-surface);
  border-radius: 2px;
  color: var(--color-text-muted);
}

.catalog-card__status {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 3px;
  margin-bottom: 12px;
}
.catalog-card__status--eligible {
  background: rgba(45,90,39,0.1);
  color: var(--color-eligible);
}
.catalog-card__status--not-eligible {
  background: rgba(122,59,46,0.1);
  color: var(--color-not-eligible);
}

.catalog-card__desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text);
  margin-bottom: 14px;
}

.catalog-card__link {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   9. SIGNIFICANCE
   ========================================================================== */
.significance-section {
  padding: var(--section-pad) 0;
  background: var(--color-surface);
}
.significance__inner {
  max-width: 720px;
  margin: 0 auto;
}
.significance__inner h2 { text-align: center; margin-bottom: 2rem; }

.significance__subsection {
  margin-bottom: 2.5rem;
}
.significance__subsection h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 1rem;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}
.significance__subsection p {
  font-size: 0.95rem;
  line-height: 1.75;
}

.pull-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--color-accent);
  border-left: 3px solid var(--color-accent);
  padding: 16px 24px;
  margin: 2rem 0;
  background: rgba(139,69,19,0.04);
}

/* Recommendations table */
.rec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.85rem;
}
.rec-table th {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: left;
  padding: 10px 12px;
  background: var(--color-bg-dark);
  color: #F5F1EB;
  border-bottom: 2px solid var(--color-accent);
}
.rec-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.rec-table tr:last-child td { border-bottom: none; }
.rec-table tbody tr:nth-child(even) { background: rgba(0,0,0,0.02); }

.future-work {
  margin-top: 1.5rem;
}
.future-work li {
  margin-bottom: 8px;
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ==========================================================================
   10. FOOTER
   ========================================================================== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(245,241,235,0.7);
  padding: 60px 0 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(245,241,235,0.1);
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(245,241,235,0.4);
  margin-bottom: 16px;
}
.footer__col p, .footer__col address {
  font-style: normal;
  font-size: 0.85rem;
  line-height: 1.7;
}

.footer__bottom {
  padding: 20px 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.footer__bottom p {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: rgba(245,241,235,0.35);
}

.footer__disclaimer {
  margin-top: 20px;
  padding: 14px 0;
  border-top: 1px solid rgba(245,241,235,0.08);
  text-align: center;
}
.footer__disclaimer p {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: rgba(245,241,235,0.3);
  font-style: italic;
}

/* ==========================================================================
   SECTION HEADERS
   ========================================================================== */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 8px;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .sidecar {
    flex-direction: column;
  }
  .sidecar__narrative { width: 100%; }
  .sidecar__map-panel { width: 100%; height: 50vh; position: relative; }
  .sidecar__site { min-height: auto; padding: 40px 24px 60px; }

  .overview__grid { grid-template-columns: 1fr; }
  .overview__sidebar { position: static; }
}

@media (max-width: 768px) {
  :root { --section-pad: 50px; }

  .navbar__links { display: none; }
  .navbar__badge { display: none; }
  .navbar__hamburger { display: flex; }

  .hero__title { font-size: clamp(2rem, 8vw, 3.5rem); }

  .catalog-grid { grid-template-columns: repeat(2, 1fr); }

  .footer__grid { grid-template-columns: 1fr; gap: 30px; }

  h2 { font-size: 1.8rem; }

  .swipe-container { height: 350px; }

  .map-sidebar { width: 100%; right: -100%; }
}

@media (max-width: 480px) {
  .catalog-grid { grid-template-columns: 1fr; }

  .hero__title { font-size: 2rem; }
  .hero__subtitle { font-size: 0.95rem; }

  .sidecar__site { padding: 30px 16px 40px; }
}