*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  min-height: 100dvh;
}
a { color: var(--c-blue); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4 { margin: 0 0 var(--sp-3); color: var(--c-text); font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 1.75rem; line-height: 1.2; }
h2 { font-size: 1.35rem; line-height: 1.25; }
h3 { font-size: 1.1rem; }
p  { margin: 0 0 var(--sp-3); color: var(--c-text-soft); }
code { font-family: var(--font-num); background: var(--c-bg-sunken); padding: 2px 6px; border-radius: 6px; font-size: .92em; }
:focus-visible { outline: 3px solid var(--c-blue-soft); outline-offset: 2px; border-radius: 6px; }
::selection { background: rgba(23,107,255,.18); color: var(--c-text); }
.blank-body { display: grid; place-items: center; min-height: 100dvh; padding: var(--sp-5); }