* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-cream: #f7f3ed;
  --bg-dark: #1a1815;
  --text-dark: #2c2825;
  --text-light: #f7f3ed;
  --accent-gold: #c4a35a;
  --accent-copper: #b87333;
  --shadow-soft: rgba(44, 40, 37, 0.15);
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background: linear-gradient(180deg, var(--bg-cream) 0%, #e8e0d5 100%);
  min-height: 100vh;
  color: var(--text-dark);
  overflow-x: hidden;
}

.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 0;
}

/* Header */
.header {
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #2a2520 100%);
  color: var(--text-light);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-title h1 {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-light) 0%, var(--accent-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-subtitle {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent-copper);
  margin-top: 0.25rem;
  display: block;
}

.unit-toggle {
  background: transparent;
  border: 2px solid var(--accent-gold);
  color: var(--accent-gold);
  padding: 0.5rem 1rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 2px;
}

.unit-toggle:hover {
  background: var(--accent-gold);
  color: var(--bg-dark);
}

/* Current Object Info */
.current-object-info {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(180deg, rgba(26, 24, 21, 0.02) 0%, transparent 100%);
}

.current-name {
  font-family: 'Playfair Display', serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 0.5rem;
}

.current-description {
  font-size: 1.125rem;
  color: #666;
  margin-bottom: 0.5rem;
}

.current-size {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-copper);
  letter-spacing: 0.05em;
}

/* Stage */
.stage-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  position: relative;
  min-height: 400px;
}

.objects-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  position: relative;
  max-width: calc(100vw - 160px);
  overflow: hidden;
}

.objects-row {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 20px;
  padding-bottom: 20px;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.baseline {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--accent-copper) 20%, var(--accent-copper) 80%, transparent 100%);
}

/* Object Card */
.object-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0.7;
}

.object-card.active {
  opacity: 1;
  transform: translateY(-10px);
}

.object-card:hover {
  opacity: 1;
}

.object-image-container {
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 10px 30px var(--shadow-soft));
}

.object-image {
  object-fit: contain;
  border-radius: 4px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), filter 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.object-card.active .object-image {
  filter: drop-shadow(0 0 20px rgba(196, 163, 90, 0.3));
}

.object-label {
  margin-top: 12px;
  text-align: center;
  opacity: 0;
  transform: translateY(-5px);
  transition: all 0.3s ease;
}

.object-card.active .object-label,
.object-card:hover .object-label {
  opacity: 1;
  transform: translateY(0);
}

.object-name {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dark);
}

.object-size {
  display: block;
  font-size: 0.625rem;
  color: var(--accent-copper);
  margin-top: 2px;
}

/* Navigation Buttons */
.nav-button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 60px;
  height: 60px;
  border: none;
  background: var(--bg-dark);
  color: var(--text-light);
  font-size: 2rem;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
}

.nav-button:hover:not(:disabled) {
  background: var(--accent-copper);
  transform: translateY(-50%) scale(1.1);
}

.nav-button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.nav-left {
  left: 20px;
}

.nav-right {
  right: 20px;
}

/* Scale Indicator */
.scale-indicator {
  padding: 1rem 2rem 0.5rem;
  max-width: 800px;
  margin: 0 auto;
  width: 100%;
}

.scale-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.scale-labels span {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #999;
}

.scale-track {
  height: 4px;
  background: #ddd;
  border-radius: 2px;
  overflow: hidden;
}

.scale-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-copper));
  border-radius: 2px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* MiniMap */
.minimap {
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 1rem;
  flex-wrap: wrap;
  max-width: 600px;
  margin: 0 auto;
}

.minimap-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ccc;
  cursor: pointer;
  transition: all 0.3s ease;
}

.minimap-dot.nearby {
  background: #999;
}

.minimap-dot.active {
  background: var(--accent-copper);
  transform: scale(1.5);
}

.minimap-dot:hover {
  background: var(--accent-gold);
}

/* Info Panel */
.info-panel {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 2rem 3rem;
  border-radius: 20px 20px 0 0;
  max-width: 500px;
  width: 90%;
  z-index: 100;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateX(-50%) translateY(100%);
  }
  to {
    transform: translateX(-50%) translateY(0);
  }
}

.info-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.3s;
}

.info-close:hover {
  opacity: 1;
}

.info-title {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.info-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.info-size {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-copper);
  margin-bottom: 1rem;
}

.info-description {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.info-year {
  font-size: 0.875rem;
  color: #999;
  margin-bottom: 0.5rem;
}

.info-fact {
  font-style: italic;
  color: var(--accent-gold);
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Footer */
.footer {
  text-align: center;
  padding: 1.5rem;
  font-size: 0.875rem;
  color: #666;
  background: linear-gradient(180deg, transparent 0%, rgba(26, 24, 21, 0.05) 100%);
}

.footer a {
  color: var(--accent-copper);
  text-decoration: none;
  transition: color 0.3s;
}

.footer a:hover {
  color: var(--accent-gold);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .header-title h1 {
    font-size: 1.5rem;
  }
  
  .header-subtitle {
    font-size: 0.625rem;
  }
  
  .current-name {
    font-size: 2rem;
  }
  
  .current-description {
    font-size: 0.875rem;
  }
  
  .current-size {
    font-size: 1.25rem;
  }
  
  .nav-button {
    width: 44px;
    height: 44px;
    font-size: 1.5rem;
  }
  
  .nav-left {
    left: 10px;
  }
  
  .nav-right {
    right: 10px;
  }
  
  .objects-stage {
    max-width: calc(100vw - 100px);
  }
  
  .objects-row {
    gap: 12px;
  }
  
  .scale-labels span {
    font-size: 0.5rem;
  }
  
  .info-panel {
    padding: 1.5rem;
  }
  
  .info-title {
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .header {
    padding: 1rem;
  }
  
  .header-content {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .current-object-info {
    padding: 1rem;
  }
  
  .stage-container {
    padding: 1rem;
    min-height: 300px;
  }
}