*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gold-dim) var(--color-charcoal);
}

html::-webkit-scrollbar {
  width: 6px;
}

html::-webkit-scrollbar-track {
  background: var(--color-charcoal);
}

html::-webkit-scrollbar-thumb {
  background: var(--color-gold-dim);
  border-radius: var(--radius);
}

body {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-ivory);
  background: var(--color-charcoal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

ul,
ol {
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

::selection {
  background: var(--color-gold);
  color: var(--color-charcoal);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.chapter {
  scroll-snap-align: start;
  scroll-snap-stop: always;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
}

main {
  margin-left: var(--rail-width);
  margin-right: var(--preview-width);
  transition: margin var(--transition-med);
}

@media (max-width: 768px) {
  main {
    margin-left: 0;
    padding-top: 56px;
  }
}