/*─────────────────────────────────────────────────────────
  CSS Variables for Dynamic Theming
──────────────────────────────────────────────────────────*/
:root {
  --primary-glow: #00ffff;
  --secondary-glow: #1a80fd;
  --danger-glow: #ff0066;
  --success-glow: #00ff88;
  --maritime-gold: #ffd700;
  --bg-dark: #0a0a0a;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --map-overlay: rgba(0, 0, 0, 0.85);
  --animation-duration: 0.6s;
  --mobile-breakpoint: 768px;
}

/*─────────────────────────────────────────────────────────
  Base Styles with Enhanced Typography
──────────────────────────────────────────────────────────*/
* { 
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-primary);
  background: var(--bg-dark);
  overflow-x: hidden;
  position: relative;
}

/* Loading Screen */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease-out;
}

.loading-content {
  text-align: center;
}

.loading-logo {
  width: 100px;
  height: 100px;
  margin: 0 auto 2rem;
  position: relative;
}

.loading-logo::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border: 2px solid var(--primary-glow);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.5);
    opacity: 0;
  }
}

.loading-text {
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  animation: fade-pulse 2s ease-in-out infinite;
}

@keyframes fade-pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* Chapter Indicator */
#chapter-indicator {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 50;
  background: var(--map-overlay);
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  opacity: 0;
  transform: translateY(-20px);
  transition: all 0.3s ease;
}

#chapter-indicator.visible {
  opacity: 1;
  transform: translateY(0);
}

#chapter-indicator span {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

#chapter-indicator strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Enhanced Banner with Parallax Effect */
#banner {
  display: flex;
  height: 100vh;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

#banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, transparent 0%, var(--bg-dark) 70%);
  animation: rotate-gradient 20s linear infinite;
  opacity: 0.5;
}

@keyframes rotate-gradient {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.banner-image-container {
  flex: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.banner-image-container img {
  max-width: 90%;
  height: auto;
  filter: drop-shadow(0 0 50px rgba(0, 255, 255, 0.3));
  animation: float-image 6s ease-in-out infinite;
}

@keyframes float-image {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

.banner-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem;
  position: relative;
  z-index: 1;
}

.banner-text h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin: 0;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.highlight {
  background: linear-gradient(135deg, #00ffff, #0066ff, #0066ff);
  background-size: 300% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradient-shift 4s ease-in-out infinite;
  filter: drop-shadow(0 0 20px rgba(0, 255, 255, 0.5));
}

@keyframes gradient-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.banner-text p {
  margin-top: 1.5rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.02em;
  opacity: 0;
  animation: fade-in-up 1s ease-out 0.5s forwards;
}

@keyframes fade-in-up {
  to {
    opacity: 1;
    transform: translateY(0);
  }
  from {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* Scroll Indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  opacity: 1;
  animation: fade-in 1s ease-out 2s forwards;
}

.scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 13px;
  position: relative;
  margin: 0 auto;
}

.scroll-mouse::before {
  content: '';
  width: 4px;
  height: 8px;
  background: var(--primary-glow);
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
  animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
  0% { transform: translateX(-50%) translateY(0); opacity: 1; }
  100% { transform: translateX(-50%) translateY(10px); opacity: 0; }
}

.scroll-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 10px;
  font-weight: 500;
}

/* Map Container - Simplified */
#map {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  background: #000;
}

/* Enhanced Legend & Date-Range - UPDATED with hide functionality */
#map-legend, #date-range {
  position: fixed;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7));
  backdrop-filter: blur(20px);
  padding: 1rem 1.5rem;
  font-size: 0.9rem;
  border-radius: 12px;
  display: none;
  z-index: 25;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
  transition: all 0.3s ease;
}

#map-legend {
  bottom: 20px;
  left: 20px;
  color: #39ff14; /* UPDATED: neon green for better visibility */
  font-weight: 500;
  letter-spacing: 0.05em;
}

#date-range {
  top: 100px;
  right: 20px;
  color: var(--secondary-glow);
  font-weight: 500;
  letter-spacing: 0.05em;
}

#map-legend::before, #date-range::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 12px;
  padding: 1px;
  background: linear-gradient(135deg, var(--primary-glow), transparent);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0.5;
}

/* Enhanced Date Range with Maritime Gold */
#date-range {
  top: 100px;
  right: 20px;
  color: var(--maritime-gold);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
}

/* MINI-MAP 1 SPECIFIC: Move date range to LEFT side */
#daterange-1 {
  top: 10px;
  left: 10px !important;    /* Move to left side */
  right: auto !important;   /* Remove right positioning */
  color: var(--maritime-gold);
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.2);
}

/* KEEP OTHER MINI-MAPS ON RIGHT SIDE (default) */
#daterange-2,
#daterange-3,
#daterange-4 {
  top: 10px;
  right: 10px;             /* Keep on right side */
  left: auto;              /* Remove left positioning */
  color: var(--maritime-gold);
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.2);
}

/* Story Section */
#story {
  position: relative;
  z-index: 10;
  padding: 0;
}

.step {
  margin: 0 auto;
  padding: 50vh 0;
  position: relative;
}

/* UPDATED: Chapter Container - DEFAULT CENTER POSITIONING */
.chapter-container {
  max-width: 640px;
  margin: 0 auto;                    /* DEFAULT: center positioning */
  padding: 0.9rem 0.8rem;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.88));
  backdrop-filter: blur(20px);
  border-radius: 25px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 15px 50px rgba(0, 0, 0, 0.7);
  transform: translateY(50px);
  opacity: 0;
  transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

/* NEW: CONTAINER POSITIONING CLASSES */
.chapter-container.align-left {
  margin: 0 auto 0 2rem;            /* LEFT: container positioned to left */
}

.chapter-container.align-center {
  margin: 0 auto;                   /* CENTER: container centered (default) */
}

.chapter-container.align-right {
  margin: 0 2rem 0 auto;            /* RIGHT: container positioned to right */
}

.chapter-container::before {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--primary-glow), var(--secondary-glow));
  border-radius: 16px;
  opacity: 0;
  transition: opacity 0.5s ease;
  z-index: -1;
  filter: blur(10px);
}

.chapter-container.active {
  transform: translateY(0);
  opacity: 1;
}

.chapter-container.active::before {
  opacity: 0.3;
}

/* Chapter Titles - KEEP TEXT AS IS */
.chapter-container h2 {
  font-size: clamp(0.8rem, 2.5vw, 2rem);
  font-weight: 500;
  margin: 0 0 1.2rem;
  letter-spacing: -0.02em;
  text-align: center;                /* KEEP: titles centered */
  background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Chapter Text - KEEP TEXT AS IS */
.chapter-container p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  font-weight: 300;
  margin: 0;
  text-align: left;                 /* KEEP: paragraphs left-aligned for reading */
}

.chapter-container ul {
  margin: 1rem 0;
  padding-left: 1.5rem;
  text-align: left;                 /* KEEP: lists left-aligned */
}

.chapter-container li {
  margin: 0.5rem 0;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
  text-align: left;                 /* KEEP: list items left-aligned */
}

/* Final Chart Section */
#chart-final {
  padding: 5rem 2rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-dark), #111);
  position: relative;
  overflow: hidden;
}

#chart-final::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-glow), transparent);
}

#chart-final svg {
  width: 100%;
  height: 80px;
  margin: 2rem 0;
  filter: drop-shadow(0 8px 24px rgba(0, 255, 255, 0.4));
}

.chart-container h3 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.explanation {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 300;
  text-align: left;
}

/* After-Map Section */
.after-map {
  background: #111;
  padding: 4rem 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Debrief Analysis Section */
.debrief-analysis {
  max-width: 800px;
  margin: 0 auto 3rem;
  text-align: left;
}

.debrief-analysis h3 {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--primary-glow);
  text-align: center;
}

.debrief-analysis p {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  font-weight: 300;
  margin-bottom: 1.2rem;
  text-align: left;
}

/* Credits */
.credits {
  max-width: 800px;
  margin: 0 auto;
  text-align: left;
}

.credits p {
  margin: 0.5rem 0;
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 300;
  letter-spacing: 0.02em;
  text-align: left;
}

.credits p:first-child {
  font-weight: 500;
  color: var(--text-primary);
}

/*─────────────────────────────────────────────────────────
  Enhanced Annotation Styling
──────────────────────────────────────────────────────────*/
.mapboxgl-popup {
  z-index: 30;
}

.mapboxgl-popup-content {
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.95), rgba(0, 0, 0, 0.85));
  backdrop-filter: blur(20px);
  border-radius: 12px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8), 0 0 60px rgba(0, 255, 255, 0.2);
  overflow: hidden;
  animation: popup-appear 0.4s ease-out;
}

@keyframes popup-appear {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.mapboxgl-popup-tip {
  display: none !important;
}

.annotation-text {
  background: transparent;
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 400;
  white-space: pre-line;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* Enhanced Blinking Animation */
@keyframes enhanced-blink {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
    filter: brightness(1.2) drop-shadow(0 0 10px currentColor);
  }
  50% {
    opacity: 0.3;
    transform: scale(0.9);
    filter: brightness(0.8) drop-shadow(0 0 5px currentColor);
  }
}

.blink {
  animation: enhanced-blink 1.5s ease-in-out infinite;
}

/* Enhanced Crash Marker */
.crash-marker-container {
  position: relative;
  width: 120px;
  height: 120px;
  pointer-events: none;
  animation: crash-drop 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes crash-drop {
  0% {
    transform: translateY(-300px) scale(0.5) rotate(-45deg);
    opacity: 0;
  }
  60% {
    transform: translateY(20px) scale(1.1) rotate(5deg);
    opacity: 1;
  }
  80% {
    transform: translateY(-10px) scale(0.95) rotate(-2deg);
  }
  100% {
    transform: translateY(0) scale(1) rotate(0deg);
    opacity: 1;
  }
}

.crash-marker-container::before,
.crash-marker-container::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.crash-marker-container::before {
  width: 30px;
  height: 30px;
  background: radial-gradient(circle, var(--danger-glow), transparent);
  animation: crash-pulse 2s ease-out infinite;
}

.crash-marker-container::after {
  width: 20px;
  height: 20px;
  background: var(--danger-glow);
  box-shadow: 0 0 20px var(--danger-glow), 0 0 40px var(--danger-glow);
}

@keyframes crash-pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
  }
  100% {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
}

/* Enhanced Ping Markers */
.ping-marker {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9), rgba(223, 125, 125, 0.8));
  box-shadow: 0 0 20px rgba(223, 125, 125, 0.8), 0 0 40px rgba(223, 125, 125, 0.4);
  animation: enhanced-ping 1.5s ease-out infinite;
  transform: translate(-50%, -50%);
  position: relative;
}

.ping-marker::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 2px solid rgba(223, 125, 125, 0.8);
  transform: translate(-50%, -50%);
  animation: ping-ring 1.5s ease-out infinite;
}

@keyframes enhanced-ping {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    filter: brightness(1.2);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    filter: brightness(1.5);
  }
}

@keyframes ping-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

/* Enhanced Satellite Image Popups */
.annotation-img {
  display: block;
  width: 180px;
  max-width: 85vw;
  margin: 0;
  border-radius: 12px 12px 0 0;
  filter: saturate(1.2) contrast(1.1);
  transition: transform 0.3s ease;
}

.annotation-img:hover {
  transform: scale(1.05);
}

.annotation-img-large {
  display: block;
  width: 220px;
  max-width: 75vw;
  margin: 0;
  border-radius: 12px 12px 0 0;
  filter: saturate(1.2) contrast(1.1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* Enhanced Red Ping Markers */
.red-ping-marker {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9), var(--danger-glow));
  animation: danger-pulse 1.2s ease-in-out infinite;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 30px var(--danger-glow), 0 0 60px rgba(255, 0, 102, 0.4);
  position: absolute;
}

.red-ping-marker::before,
.red-ping-marker::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.red-ping-marker::before {
  width: 150%;
  height: 150%;
  border: 2px solid var(--danger-glow);
  border-radius: 50%;
  animation: danger-ring 1.5s ease-out infinite;
}

.red-ping-marker::after {
  width: 3px;
  height: 40px;
  background: linear-gradient(to top, var(--danger-glow), transparent);
  transform: translateX(-50%) translateY(14px);
  animation: danger-beam 1.5s ease-in-out infinite;
}

@keyframes danger-pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    filter: brightness(1);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    filter: brightness(1.5) saturate(1.5);
  }
}

@keyframes danger-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.8;
  }
  100% {
    transform: translate(-50%, -50%) scale(2.5);
    opacity: 0;
  }
}

@keyframes danger-beam {
  0%, 100% {
    opacity: 0.8;
    height: 40px;
  }
  50% {
    opacity: 1;
    height: 50px;
  }
}

/* Enhanced STS Markers */
.sts-marker {
  position: absolute;
  display: flex;
  transform: translate(-50%, -50%);
  pointer-events: none;
  gap: 6px;
}

.sts-marker .dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9), var(--danger-glow));
  animation: sts-pulse 1.3s ease-in-out infinite;
  box-shadow: 0 0 20px var(--danger-glow), 0 0 40px rgba(255, 0, 102, 0.3);
  position: relative;
}

.sts-marker .dot:nth-child(2) {
  animation-delay: 0.2s;
}

.sts-marker .dot::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 30px;
  height: 30px;
  border: 1px solid var(--danger-glow);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: sts-ring 1.5s ease-out infinite;
}

@keyframes sts-pulse {
  0%, 100% {
    transform: scale(1);
    filter: brightness(1);
  }
  50% {
    transform: scale(1.15);
    filter: brightness(1.5);
  }
}

@keyframes sts-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.6;
  }
  100% {
    transform: translate(-50%, -50%) scale(2);
    opacity: 0;
  }
}

/* Chapter 6 Mini-maps Enhancement */
#mini-maps-container {
  display: none;
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  z-index: 1;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 2px;
  background: var(--bg-dark);
}

.mini-map {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.5);
}

.mini-map::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0, 0, 0, 0.3) 100%);
  pointer-events: none;
}

.mini-legend, .mini-daterange {
  position: absolute;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0.7));
  backdrop-filter: blur(15px);
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  border-radius: 8px;
  color: var(--text-primary);
  pointer-events: none;
  z-index: 25;
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.mini-legend {
  bottom: 10px;
  left: 10px;
  color: var(--primary-glow);
}

.mini-daterange {
  top: 10px;
  right: 10px;
  color: var(--secondary-glow);
}

/*─────────────────────────────────────────────────────────
  Mobile Optimizations - FIXED
──────────────────────────────────────────────────────────*/
@media screen and (max-width: 768px) {
  /* Banner Mobile */
  #banner {
    flex-direction: column;
    height: auto;
    min-height: 100vh;
  }

  .banner-image-container {
    flex: 1;
    padding: 3rem 1rem;
  }

  .banner-text {
    flex: 1;
    padding: 2rem;
    text-align: center;
  }

  .banner-text h1 {
    font-size: 2rem;
  }

  /* Chapter Indicators Mobile */
  #chapter-indicator {
    top: auto;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    padding: 0.5rem 1rem;
  }

  #chapter-indicator.visible {
    transform: translateX(-50%) translateY(0);
  }

  /* FIXED: Map Legend Mobile - Prevent full width */
  #map-legend {
    bottom: 10px;
    left: 10px;
    right: auto;
    max-width: 60%;
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
  }

  /* FIXED: Date Range Mobile - Position in top right, smaller */
  #date-range {
    top: 30px;
    right: 10px;
    left: auto;
    max-width: 45%;
    font-size: 0.7rem;
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
  }

  /* FIXED: Mini-map date ranges - Adjusted positioning */
  #daterange-1 {
    top: 5px;
    left: 5px !important;
    right: auto !important;
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
    max-width: 45%;
  }

  #daterange-2,
  #daterange-3,
  #daterange-4 {
    top: 5px;
    right: 5px;
    left: auto;
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
    max-width: 45%;
  }

  /* Story Panels Mobile */
  .step {
    padding: 30vh 0.5rem;
  }

  /* FIXED: Compact Mobile Chapter Containers */
  .chapter-container {
    padding: 0.8rem 1rem;
    border-radius: 12px;
    max-width: calc(100% - 1rem);
    margin: 0 0.5rem;
  }

  .chapter-container.align-left {
    margin: 0 0.5rem 0 0.5rem;
  }

  .chapter-container.align-center {
    margin: 0 0.5rem;
  }

  .chapter-container.align-right {
    margin: 0 0.5rem 0 0.5rem;
  }

  /* FIXED: Smaller mobile text */
  .chapter-container h2 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
  }

  .chapter-container p {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .chapter-container ul {
    margin: 0.8rem 0;
    padding-left: 1.2rem;
  }

  .chapter-container li {
    margin: 0.4rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
  }

  /* Mini-maps Mobile */
  #mini-maps-container {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 250px);
    gap: 1px;
  }

  .mini-legend, .mini-daterange {
    font-size: 0.65rem;
    padding: 0.3rem 0.5rem;
  }

  .mini-legend {
    bottom: 5px;
    left: 5px;
    max-width: 50%;
  }

  .mini-daterange {
    top: 5px;
    right: 5px;
    max-width: 50%;
  }

  /* Annotations Mobile */
  .annotation-img {
    width: 140px;
  }

  .annotation-img-large {
    width: 160px;
  }

  .annotation-text {
    font-size: 0.8rem;
    padding: 0.6rem 0.8rem;
  }

  /* Markers Mobile */
  .red-ping-marker {
    width: 20px;
    height: 20px;
  }

  .ping-marker {
    width: 18px;
    height: 18px;
  }

  .sts-marker .dot {
    width: 16px;
    height: 16px;
  }

  .crash-marker-container {
    width: 80px;
    height: 80px;
  }

  /* Final Chart Mobile */
  #chart-final {
    padding: 2rem 1rem;
  }

  .chart-container h3 {
    font-size: 1.3rem;
  }

  .explanation {
    font-size: 0.95rem;
  }

  /* After-Map Mobile */
  .after-map {
    padding: 2rem 1rem;
  }

  .debrief-analysis {
    margin-bottom: 1.5rem;
  }

  .debrief-analysis h3 {
    font-size: 1.3rem;
  }

  .debrief-analysis p {
    font-size: 0.95rem;
  }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
  .annotation-img:hover {
    transform: none;
  }

  .chapter-container {
    transition: all 0.6s ease;
  }
}

/* High Resolution Display Optimizations */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .mapboxgl-popup-content {
    border-width: 0.5px;
  }

  #map-legend::before, #date-range::before {
    border-width: 0.5px;
  }
}

/* Reduced Motion Preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark Mode Enhancements */
@media (prefers-color-scheme: dark) {
  :root {
    --bg-dark: #000000;
    --map-overlay: rgba(0, 0, 0, 0.95);
  }
}