:root {
  color-scheme: light;
  --bg: #f5f5f7;
  --text: #1d2120;
  --accent: #328269;
  --line: #e9ece9;
  background: var(--bg);
  color: var(--text);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111513;
  --text: #eff2ef;
  --accent: #89c6ac;
  --line: #303731;
}
body { margin: 0; background: var(--bg); }
.startup-screen {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "DM Sans", "Segoe UI", sans-serif;
}
.startup-brand {
  font-size: 30px;
  font-weight: 650;
  letter-spacing: -1px;
}
.startup-track {
  width: 80px;
  height: 3px;
  overflow: hidden;
  border-radius: 3px;
  background: var(--line);
}
.startup-track span {
  display: block;
  width: 40%;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  animation: startup-progress 1.8s ease-in-out infinite alternate;
}
@keyframes startup-progress {
  from { transform: translateX(0); }
  to { transform: translateX(150%); }
}
@media (prefers-reduced-motion: reduce) {
  .startup-track span { animation: none; width: 100%; }
}