:root {
  --bg: #f6f7f5;
  --text: #1b231e;
  --muted: #5d6b62;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111513;
    --text: #e6ebe7;
    --muted: #9aa8a0;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

main {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}

.muted {
  color: var(--muted);
}

.logo {
  width: min(320px, 80vw);
  height: auto;
  margin-bottom: 1.5rem;
}

@media (prefers-color-scheme: dark) {
  .logo {
    filter: invert(1);
  }
}

.notice {
  background: #fff3d6;
  color: #6b4500;
  padding: 0.8rem 1rem;
  border-radius: 10px;
  max-width: 420px;
}

@media (prefers-color-scheme: dark) {
  .notice {
    background: #3a2f14;
    color: #ffcc66;
  }
}