*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--c-fg);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4 { margin: 0; font-weight: var(--fw-semibold); line-height: var(--lh-tight); }
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
p { margin: 0; }
a { color: var(--c-brand); text-decoration: none; }
a:hover { text-decoration: underline; }
button {
  font: inherit; cursor: pointer; border: 0; background: none; padding: 0;
  color: inherit;
}
input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--c-brand); outline-offset: 2px; border-radius: 4px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-border-strong); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-fg-subtle); }

code, pre { font-family: var(--font-mono); font-size: var(--fs-md); }

.boot-splash {
  display: grid; place-items: center; height: 100vh; background: var(--c-bg);
}
.boot-spinner {
  width: 32px; height: 32px; border-radius: 50%;
  border: 3px solid var(--c-border); border-top-color: var(--c-brand);
  animation: spin 700ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.muted { color: var(--c-fg-muted); }
.subtle { color: var(--c-fg-subtle); }
.mono { font-family: var(--font-mono); }