/* CSS Custom Properties for consistent theming */
:root {
  /* Color palette - Modern and clean */
  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-light: #e0e7ff;
  --color-secondary: #6b7280;
  --color-secondary-hover: #4b5563;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;
  
  /* Neutral colors */
  --color-white: #ffffff;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-family-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
  
  /* Font sizes */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  
  /* Border radius */
  --radius-sm: 0.25rem;
  --radius-base: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-base: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 200ms ease-in-out;
  --transition-slow: 300ms ease-in-out;
  
  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1040;
  --z-popover: 1050;
  --z-tooltip: 1060;
}

/* Base styles */
* {
  box-sizing: border-box;
}

/* Button styles */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.button:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.button:disabled,
.button--disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

/* Button variants */
.button--primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.button--primary:hover:not(:disabled):not(.button--disabled) {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button--secondary {
  background-color: var(--color-secondary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.button--secondary:hover:not(:disabled):not(.button--disabled) {
  background-color: var(--color-secondary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.button--outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.button--outline:hover:not(:disabled):not(.button--disabled) {
  background-color: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Button sizes */
.button--small {
  padding: var(--space-2) var(--space-3);
  font-size: var(--font-size-sm);
  height: 2rem;
}

.button--medium {
  padding: var(--space-3) var(--space-6);
  font-size: var(--font-size-base);
  height: 2.5rem;
}

.button--large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
  height: 3rem;
}

/* Card styles */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Game card styles */
.game-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 320px;
  overflow: hidden;
}

.game-card__content {
  flex: 1;
}

.game-card__thumbnail {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  transition: transform var(--transition-base);
}

.game-card:hover .game-card__thumbnail {
  transform: scale(1.02);
}

.game-card__title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0 0 var(--space-2) 0;
  color: var(--color-gray-800);
  line-height: 1.3;
}

.game-card__description {
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
  margin: 0 0 var(--space-3) 0;
  line-height: 1.5;
}

.game-card__difficulty {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.game-card__difficulty--easy {
  background-color: var(--color-success);
  color: var(--color-white);
}

.game-card__difficulty--medium {
  background-color: var(--color-warning);
  color: var(--color-white);
}

.game-card__difficulty--hard {
  background-color: var(--color-error);
  color: var(--color-white);
}

/* Loading styles */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: var(--space-12) var(--space-6);
}

.loading__spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-gray-200);
  border-top: 3px solid var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
}

.loading--small .loading__spinner {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.loading--large .loading__spinner {
  width: 48px;
  height: 48px;
  border-width: 4px;
}

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

.loading__message {
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  margin: 0;
  font-weight: 500;
}

/* Error boundary styles */
.error-boundary {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  padding: var(--space-12) var(--space-6);
}

.error-boundary__content {
  text-align: center;
  max-width: 400px;
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-md);
}

.error-boundary__content h2 {
  color: var(--color-error);
  margin: 0 0 var(--space-4) 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
}

.error-boundary__content p {
  color: var(--color-gray-600);
  margin: 0 0 var(--space-6) 0;
  line-height: 1.5;
}

/* Layout styles */
.layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-gray-50);
}

.layout__header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.layout__title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0;
  color: var(--color-gray-800);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-info) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.layout__navigation {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}

.layout__main {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  background: var(--color-gray-50);
}/* Import modern CSS reset and base styles */
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
  color: #111827;
  line-height: 1.6;
}

/* Navigation styles */
.navigation {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navigation__home-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  transition: all 200ms ease-in-out;
  border-radius: 0.5rem;
}

.navigation__home-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.15);
}

/* Home page styles */
.home-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem;
}

.home-page__header {
  text-align: center;
  margin-bottom: 4rem;
}

.home-page__header h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin: 0 0 1.5rem 0;
  background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 50%, #10b981 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.home-page__header p {
  font-size: 1.25rem;
  color: #6b7280;
  margin: 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  font-weight: 400;
}

.home-page__games {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  justify-items: center;
}

/* Test page styles */
.test-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.test-page__header {
  text-align: center;
  margin-bottom: 3rem;
}

.test-page__header h1 {
  font-size: 3rem;
  font-weight: 700;
  margin: 0 0 1rem 0;
  background: linear-gradient(135deg, #4f46e5 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.test-page__header p {
  font-size: 1.125rem;
  color: #6b7280;
  margin: 0;
  font-weight: 400;
}

.test-page__content {
  background: white;
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid #e5e7eb;
}

.test-page__content h2 {
  color: #111827;
  margin: 0 0 1.5rem 0;
  font-size: 1.5rem;
  font-weight: 600;
}

.test-page__content h3 {
  color: #4f46e5;
  margin: 2rem 0 1rem 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.test-page__content ul {
  margin: 0 0 1.5rem 0;
  padding-left: 1.5rem;
}

.test-page__content li {
  margin: 0.75rem 0;
  line-height: 1.6;
  color: #374151;
}

.test-page__info {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.test-page__note {
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: 0.75rem;
  padding: 1.25rem;
  margin: 1.5rem 0;
}

.test-page__note strong {
  color: #92400e;
}

/* Responsive design improvements */
@media (max-width: 768px) {
  .home-page {
    padding: 1.5rem;
  }
  
  .home-page__header h1 {
    font-size: 2.5rem;
  }
  
  .home-page__header p {
    font-size: 1.125rem;
  }
  
  .home-page__games {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .test-page {
    padding: 1.5rem;
  }
  
  .test-page__header h1 {
    font-size: 2.25rem;
  }
  
  .test-page__content {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .home-page__header h1 {
    font-size: 2rem;
  }
  
  .test-page__header h1 {
    font-size: 1.875rem;
  }
}