/* PWA CSS Variables and Styles */
:root {
  --safe-area-inset-top: 0px;
  --safe-area-inset-right: 0px;
  --safe-area-inset-bottom: 0px;
  --safe-area-inset-left: 0px;
}

/* PWA Detection */
@media (display-mode: fullscreen) {
  :root {
    --safe-area-inset-top: env(safe-area-inset-top);
    --safe-area-inset-right: env(safe-area-inset-right);
    --safe-area-inset-bottom: env(safe-area-inset-bottom);
    --safe-area-inset-left: env(safe-area-inset-left);
  }
}

@media (display-mode: standalone) {
  :root {
    --safe-area-inset-top: env(safe-area-inset-top);
    --safe-area-inset-right: env(safe-area-inset-right);
    --safe-area-inset-bottom: env(safe-area-inset-bottom);
    --safe-area-inset-left: env(safe-area-inset-left);
  }
}

/* Fullscreen PWA Styles */
.pwa-fullscreen {
  padding-top: var(--safe-area-inset-top);
  padding-right: var(--safe-area-inset-right);
  padding-bottom: var(--safe-area-inset-bottom);
  padding-left: var(--safe-area-inset-left);
}

/* PWA Status Bar Overlay Protection */
.pwa-status-bar-safe {
  margin-top: var(--safe-area-inset-top);
}

/* PWA Bottom Safe Area */
.pwa-bottom-safe {
  padding-bottom: calc(var(--safe-area-inset-bottom) + 16px);
}

/* PWA Header Safe Area */
.pwa-header-safe {
  padding-top: calc(var(--safe-area-inset-top) + 8px);
}

/* Fullscreen Body Adjustments */
@media (display-mode: fullscreen), (display-mode: standalone) {
  body {
    /* Prevent overscroll bounce */
    overscroll-behavior: none;

    /* Prevent text selection on UI elements */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;

    /* Prevent touch callouts */
    -webkit-touch-callout: none;

    /* Prevent tap highlighting */
    -webkit-tap-highlight-color: transparent;

    /* Safe-area padding to avoid overlap with iOS status bar and home indicator */
    padding-top: var(--safe-area-inset-top);
    padding-right: var(--safe-area-inset-right);
    padding-bottom: var(--safe-area-inset-bottom);
    padding-left: var(--safe-area-inset-left);
  }

  /* Allow text selection in input fields and content areas */
  input,
  textarea,
  [contenteditable],
  .selectable-text {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
  }

  /* Main app container */
  #root {
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height */
  }

  /* Utilities for fixed/sticky headers when running as PWA */
  .pwa-fixed-top,
  .pwa-sticky-top {
    top: var(--safe-area-inset-top);
  }
}

/* iOS Safari PWA Specific Fixes */
@supports (-webkit-appearance: none) {
  @media (display-mode: standalone) {
    /* Fix for iOS Safari PWA status bar */
    body {
      padding-top: constant(safe-area-inset-top); /* iOS 11.0 */
      padding-top: env(safe-area-inset-top); /* iOS 11.2+ */
    }

    /* Fix for iOS bottom safe area (home indicator) */
    .pwa-bottom-safe {
      padding-bottom: constant(safe-area-inset-bottom);
      padding-bottom: env(safe-area-inset-bottom);
    }
  }
}

/* PWA Splash Screen Styling */
.pwa-splash {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  background: linear-gradient(135deg, #0c0f13 0%, #1a1d23 100%);
  color: white;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.pwa-splash-logo {
  width: 120px;
  height: 120px;
  margin-bottom: 24px;
  border-radius: 24px;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.pwa-splash-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pwa-splash-subtitle {
  font-size: 16px;
  opacity: 0.8;
  margin-bottom: 32px;
}

.pwa-splash-loader {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(255,255,255,0.2);
  border-top: 3px solid white;
  border-radius: 50%;
  animation: pwa-spin 1s linear infinite;
}

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

/* PWA Install Banner Animations */
@keyframes pwa-slide-up {
  from {
    transform: translateY(100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

#pwa-install-banner {
  animation: pwa-slide-up 0.3s ease-out;
}

/* PWA Update Available Banner */
.pwa-update-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: #ff6b35;
  color: white;
  padding: 12px 16px;
  text-align: center;
  z-index: 10001;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.pwa-update-banner button {
  background: rgba(255,255,255,0.2);
  color: white;
  border: none;
  padding: 6px 12px;
  border-radius: 4px;
  margin-left: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
}

/* PWA Network Status */
.pwa-offline-indicator {
  position: fixed;
  top: var(--safe-area-inset-top, 0);
  left: 0;
  right: 0;
  background: #f44336;
  color: white;
  padding: 8px 16px;
  text-align: center;
  font-size: 12px;
  z-index: 10002;
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

.pwa-offline-indicator.visible {
  transform: translateY(0);
}

/* Responsive PWA Elements */
@media (max-width: 768px) {
  .pwa-fullscreen {
    padding-left: calc(var(--safe-area-inset-left) + 16px);
    padding-right: calc(var(--safe-area-inset-right) + 16px);
  }

  #pwa-install-banner {
    left: 10px;
    right: 10px;
    bottom: 10px;
  }
}

/* Dark Mode PWA Support */
@media (prefers-color-scheme: dark) {
  .pwa-splash {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
  }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  #pwa-install-banner {
    border: 2px solid white;
  }

  .pwa-update-banner {
    border-bottom: 2px solid white;
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .pwa-splash-loader {
    animation: none;
  }

  #pwa-install-banner {
    animation: none;
  }

  .pwa-offline-indicator {
    transition: none;
  }
}