/* Critical CSS — loaded before React to prevent FOUC (Flash of Unstyled Content).
   Must be kept in sync with app.css dark mode background. */

html, body {
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Dark mode background - prevents white flash */
/* MUST match app.css .dark body background exactly! */
html.dark, html.dark body {
  background-color: #0f172a;
  color-scheme: dark;
}

/* Hide light-mode elements immediately in dark mode */
html.dark .dark\:hidden {
  display: none !important;
}

/* Safe area for notched devices */
.safe-area-pb {
  padding-bottom: env(safe-area-inset-bottom);
}
.safe-area-pt {
  padding-top: env(safe-area-inset-top);
}

/* Initial loader */
#app-loader {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1E3A5F 0%, #4A90D9 100%);
  z-index: 9999;
  transition: opacity 0.3s ease-out;
}

#app-loader.hidden {
  opacity: 0;
  pointer-events: none;
}

#app-loader .spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}