/* ION Geographic Hierarchy Styles */
/* Base styles and theme variables */
:root {
  /* Light mode colors */
  --background: 220 20% 97%;
  --foreground: 220 15% 15%;
  --card: 220 20% 100%;
  --card-foreground: 220 15% 15%;
  --primary: 30 50% 45%;
  --primary-foreground: 30 5% 98%;
  --muted: 220 15% 93%;
  --muted-foreground: 220 10% 40%;
  --border: 220 15% 88%;
}

.dark {
  /* Dark mode colors */
  --background: 220 20% 12%;
  --foreground: 220 10% 90%;
  --card: 220 20% 15%;
  --card-foreground: 220 10% 90%;
  --primary: 30 50% 55%;
  --primary-foreground: 30 5% 10%;
  --muted: 220 15% 20%;
  --muted-foreground: 220 10% 65%;
  --border: 220 15% 25%;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
  background: linear-gradient(to bottom right, hsl(var(--background)), hsl(var(--background)), hsl(var(--muted) / 0.2));
  color: hsl(var(--foreground));
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1152px;
  margin: 0 auto;
  padding: 2rem;
}

/* Theme Toggle */
.theme-toggle {
  position: fixed;
  top: 2rem;
  right: 2rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: hsl(var(--card));
  border: 2px solid hsl(var(--border));
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 100;
}

.theme-toggle:hover {
  border-color: hsl(var(--primary));
  transform: scale(1.1);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  stroke: hsl(var(--foreground));
}

/* Back Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: hsl(var(--primary));
  text-decoration: none;
  margin-bottom: 2rem;
  transition: color 0.3s ease;
}

.back-link:hover {
  color: hsl(var(--primary) / 0.8);
}

.back-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.back-link:hover svg {
  transform: translateX(-4px);
}

/* Header */
.header {
  margin-bottom: 3rem;
}

.header-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.header-flag {
  font-size: 3rem;
}

.header-title {
  font-size: 3rem;
  font-weight: bold;
  font-family: 'Bebas Neue', sans-serif;
  background: linear-gradient(to right, hsl(var(--primary)), hsl(var(--primary) / 0.6));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-subtitle {
  font-size: 1.125rem;
  color: hsl(var(--muted-foreground));
}

/* Grid */
.grid {
  display: grid;
  gap: 1.5rem;
}

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

.grid-cols-3 {
  grid-template-columns: repeat(1, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 640px) {
  .grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-cols-4 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Mobile Responsive Improvements */
@media (max-width: 640px) {
  .container {
    padding: 1rem;
  }
  
  .header {
    margin-bottom: 1.5rem;
  }
  
  .header-title-wrapper {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
  }
  
  .header-flag img {
    width: 2.5rem !important;
    height: 1.875rem !important;
  }
  
  .header-title {
    font-size: 1.75rem;
  }
  
  .header-subtitle {
    font-size: 0.875rem;
  }
  
  .card-header {
    padding: 1rem;
  }
  
  .card-title {
    font-size: 1rem;
  }
  
  .card-description {
    font-size: 0.75rem;
  }
  
  .card-meta {
    font-size: 0.75rem;
  }
  
  /* Country cards remain readable on mobile */
  .country-card .card-header {
    padding: 1.25rem;
  }
  
  .country-card .card-title {
    font-size: 1.25rem;
  }
  
  /* Pagination responsive */
  .pagination {
    gap: 4px !important;
  }
  
  .pagination .page-btn {
    padding: 6px 10px !important;
    font-size: 12px !important;
    min-width: 36px !important;
  }
  
  .pagination span {
    padding: 4px !important;
    font-size: 12px !important;
  }
}

/* Card */
.card {
  background: linear-gradient(to bottom right, hsl(var(--card)), hsl(var(--card) / 0.5));
  border: 2px solid hsl(var(--border));
  border-radius: 0.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px hsl(var(--primary) / 0.1);
  border-color: hsl(var(--primary) / 0.3);
}

.card.featured {
  border-color: hsl(var(--primary) / 0.3);
  background: linear-gradient(to bottom right, hsl(var(--card)), hsl(var(--primary) / 0.05));
}

.card-header {
  padding: 1.5rem;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-header-compact {
  padding: 1rem;
  min-height: 88px;
}

.card-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, hsl(var(--primary) / 0.05), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

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

.card-title-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  z-index: 10;
}

.card-flag {
  font-size: 1.5rem;
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: hsl(var(--card-foreground));
  transition: color 0.3s ease;
}

.card-title-large {
  font-size: 1.5rem;
}

.card:hover .card-title {
  color: hsl(var(--primary));
}

.card-description {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.5rem;
  position: relative;
  z-index: 10;
}

.card-meta {
  font-size: 0.875rem;
  color: hsl(var(--muted-foreground));
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: relative;
  z-index: 10;
}

.card-meta-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: hsl(var(--primary) / 0.7);
}

.card-meta-dot-small {
  width: 0.375rem;
  height: 0.375rem;
}

.card-link {
  font-size: 0.75rem;
  color: hsl(var(--primary));
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 10;
}

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

/* Country Cards (larger) */
.country-card .card-header {
  padding: 1.5rem;
}

.country-card .card-flag {
  font-size: 2rem;
}

.country-card .card-title {
  font-size: 1.5rem;
}

.country-card .card-description {
  font-size: 1rem;
}