:root {
  color-scheme: light dark;
  --startup-background: #F2F5F2;
  --startup-foreground: #113F39;
  --startup-muted: #56645F;
  --startup-track: #D8E7E1;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--startup-background);
}

#app-startup {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  overflow: auto;
  box-sizing: border-box;
  padding: max(24px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(24px, env(safe-area-inset-left));
  background: var(--startup-background);
  color: var(--startup-foreground);
  font: 16px/1.5 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-align: center;
}

.startup-content {
  width: 100%;
  max-width: 360px;
  margin: auto;
}

.startup-icon {
  display: block;
  margin: 0 auto 16px;
}

#startup-title {
  margin: 0;
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.6px;
}

.startup-content p {
  margin: 10px 0 24px;
  color: var(--startup-muted);
  overflow-wrap: anywhere;
}

.startup-privacy a {
  display: inline-block;
  padding: 12px 4px;
  color: var(--startup-foreground);
  text-underline-offset: 3px;
}

.startup-privacy a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
  border-radius: 4px;
}

.startup-progress {
  box-sizing: border-box;
  width: 24px;
  height: 24px;
  margin: 0 auto;
  border: 3px solid var(--startup-track);
  border-top-color: var(--startup-foreground);
  border-radius: 50%;
  animation: startup-spin 1s linear infinite;
}

#startup-retry {
  min-width: 120px;
  min-height: 44px;
  padding: 10px 20px;
  border: 0;
  border-radius: 12px;
  background: var(--startup-foreground);
  color: var(--startup-background);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

#startup-retry:hover {
  filter: brightness(1.15);
}

#startup-retry:focus-visible {
  outline: 3px solid var(--startup-foreground);
  outline-offset: 4px;
}

#app-startup [hidden] {
  display: none;
}

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

@media (prefers-color-scheme: dark) {
  :root {
    --startup-background: #0E1816;
    --startup-foreground: #91D0BD;
    --startup-muted: #B5C0BB;
    --startup-track: #354641;
  }
}

@media (prefers-reduced-motion: reduce) {
  .startup-progress { animation: none; }
}