/* Shared styles across all pages */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --transition-speed: 0.4s;
  --transition-ease: cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

.explorer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.5rem;
  padding: 1rem;
  transition: all var(--transition-speed) var(--transition-ease);
}

.explorer-item {
  background: linear-gradient(145deg, #1e293b, #0f172a);
  border-radius: 16px;
  padding: 1.5rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  position: relative;
  overflow: hidden;
  aspect-ratio: 1;
}

.explorer-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  opacity: 0;
  transition: opacity var(--transition-speed) var(--transition-ease);
  z-index: -1;
}

.explorer-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.explorer-item:hover::before {
  opacity: 1;
}

.explorer-item.active {
  background: linear-gradient(145deg, #312e81, #3730a3);
  transform: scale(0.95);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
}

.explorer-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  transition: transform var(--transition-speed) var(--transition-ease);
}

.explorer-item:hover .explorer-icon {
  transform: scale(1.2);
}

.explorer-label {
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  line-height: 1.3;
}

.level-container {
  display: flex;
  flex-direction: row;
  gap: 1.5rem;
  padding: 1rem;
  transition: all var(--transition-speed) var(--transition-ease);
}

.level-stack {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: all var(--transition-speed) var(--transition-ease);
  min-width: 120px;
}

.level-stack .explorer-item {
  width: 120px;
  height: 120px;
}

.level-expanded {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  flex: 1;
  transition: all var(--transition-speed) var(--transition-ease);
}

.level-expanded .explorer-item {
  width: 120px;
  height: 120px;
}

.sublevel-container {
  position: absolute;
  top: 0;
  left: 100%;
  width: 400px;
  padding-left: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateX(20px);
  transition: all var(--transition-speed) var(--transition-ease);
  z-index: 10;
}

.sublevel-container.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.sublevel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  background: rgba(30, 41, 59, 0.9);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
  font-size: 0.9rem;
  color: #94a3b8;
}

.breadcrumb-item {
  cursor: pointer;
  transition: color var(--transition-speed) var(--transition-ease);
}

.breadcrumb-item:hover {
  color: #60a5fa;
}

.breadcrumb-separator {
  color: #475569;
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(55, 48, 163, 0.3);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 8px;
  padding: 0.5rem 1rem;
  cursor: pointer;
  transition: all var(--transition-speed) var(--transition-ease);
  margin-bottom: 1rem;
}

.back-button:hover {
  background: rgba(55, 48, 163, 0.5);
  transform: translateX(-3px);
}

@media (max-width: 768px) {
  .explorer-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 1rem;
  }
  
  .explorer-item {
    padding: 1rem 0.75rem;
  }
  
  .explorer-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }
  
  .explorer-label {
    font-size: 0.75rem;
  }
  
  .level-stack .explorer-item,
  .level-expanded .explorer-item {
    width: 90px;
    height: 90px;
  }
  
  .sublevel-container {
    position: static;
    width: 100%;
    padding-left: 0;
    margin-top: 1rem;
  }
  
  .sublevel-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}