/* Critical CSS shared across tutorial pages: theme variables, reset, sticky header. */
/* -- CSS variables - light theme -- */
:root {
  --pri-yellow: #f09a0f;
  --text-blue: #25265e;
  --black: #000000;
  --white: #ffffff;
  --header-bor-bottom: #f4f4f4;
  --header-border: rgba(246, 246, 246, 0.4);
  --load-wrap-bg: rgba(31, 11, 11, 0.8);
}
/* -- Dark theme overrides -- */
.dark-theme { background-color: #121225; }
body.dark-theme {
  --text-blue: #ffffff;
  --black: #eeeeee;
  --white: #121225;
  --header-bor-bottom: #0d0d1e;
  --header-border: rgb(49, 49, 49);
}
/* -- Reset -- */
*, *::before, *::after { padding: 0; margin: 0; box-sizing: border-box; }
/* -- Body -- */
body { background-color: #fff; }
/* -- Sticky header -- */
.header {
  top: 0;
  width: 100%;
  background-color: var(--white) !important;
  z-index: 999;
  border-bottom: 1px solid var(--header-bor-bottom);
  position: sticky;
}
.header-border { border-bottom: 2px solid var(--header-border); }