/* PWA-specific styles */

/* Install Banner */
.install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(135deg, #4299e1, #3182ce);
  color: white;
  padding: 16px;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
  animation: slideUp 0.3s ease-out;
}

.install-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 600px;
  margin: 0 auto;
  gap: 16px;
}

.install-btn {
  background: white;
  color: #4299e1;
  border: none;
  padding: 8px 16px;
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease;
}

.install-btn:hover {
  transform: scale(1.05);
}

.dismiss-btn {
  background: transparent;
  color: white;
  border: none;
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

/* Offline Indicator */
.offline-indicator {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #f56565;
  color: white;
  text-align: center;
  padding: 8px;
  font-size: 14px;
  z-index: 1000;
  animation: slideDown 0.3s ease-out;
}

/* PWA Mode Adjustments */
.pwa-mode {
  /* Remove any browser chrome considerations */
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

.pwa-mode .header {
  padding-top: calc(16px + env(safe-area-inset-top));
}

/* Offline State Styling */
body.offline {
  filter: grayscale(0.2);
}

body.offline .puzzle-container {
  position: relative;
}

body.offline .puzzle-container::after {
  content: "📶 Offline Mode";
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(245, 101, 101, 0.9);
  color: white;
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 12px;
  z-index: 10;
}

/* Loading States */
.loading-puzzle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: #718096;
}

.loading-puzzle::after {
  content: "";
  width: 20px;
  height: 20px;
  border: 2px solid #e2e8f0;
  border-top: 2px solid #4299e1;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-left: 10px;
}

/* Responsive Design for PWA */
@media (display-mode: standalone) {
  /* Styles that only apply when running as PWA */
  body {
    user-select: none; /* Prevent text selection on mobile */
    -webkit-touch-callout: none; /* Disable callout on iOS */
  }
  
  /* Full height for standalone mode */
  html, body {
    height: 100vh;
    overflow-x: hidden;
  }
  
  #app {
    height: 100vh;
    display: flex;
    flex-direction: column;
  }
}

/* Touch-friendly buttons for mobile */
@media (max-width: 768px) {
  .btn, button {
    min-height: 44px; /* iOS recommended touch target */
    min-width: 44px;
    padding: 12px 20px;
    font-size: 16px; /* Prevent zoom on iOS */
  }
  
  input, select, textarea {
    font-size: 16px; /* Prevent zoom on iOS */
  }
}

/* Safe area handling for notched devices */
@supports (padding: max(0px)) {
  .header {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }
  
  .install-banner {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }
}

/* Animations */
@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

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

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

/* Print styles (for when users try to print) */
@media print {
  .install-banner,
  .offline-indicator,
  .nav-menu {
    display: none !important;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .install-banner {
    background: #000000;
    border: 2px solid #ffffff;
  }
  
  .install-btn {
    background: #ffffff;
    color: #000000;
    border: 2px solid #000000;
  }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  .install-banner,
  .offline-indicator,
  .loading-puzzle::after {
    animation: none;
  }
  
  .install-btn {
    transition: none;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .offline-indicator {
    background: #c53030;
  }
  
  .loading-puzzle {
    color: #a0aec0;
  }
}