.mastery-completion {
  margin: 0.75rem 0 1.5rem;
}
.mastery-completion p {
  margin: 0 0 0.5rem;
  font-weight: 600;
}
.mastery-completion progress {
  display: block;
  width: 100%;
  height: 1.25rem;
  accent-color: var(--accent);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-inset);
}
.mastery-completion progress::-webkit-progress-bar {
  background: var(--surface-inset);
}
.mastery-completion progress::-webkit-progress-value {
  background: var(--accent);
}
.mastery-completion progress::-moz-progress-bar {
  background: var(--accent);
}
.page-return-top {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1rem, env(safe-area-inset-bottom));
  z-index: 50;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--ink);
  background: var(--panel);
  box-shadow: 0 2px 12px #0005;
  text-decoration: none;
}
.page-return-top[hidden],
.dialog-scroll-toolbar [hidden] {
  display: none;
}
body.has-scroll-navigation .foot {
  padding-bottom: 5rem;
}
html.dialog-scroll-locked {
  overflow: hidden;
  scrollbar-gutter: stable;
  scroll-behavior: auto;
}
dialog.scroll-dialog {
  padding: 0;
  overflow: hidden;
  max-height: calc(100vh - 2rem);
  max-height: calc(100dvh - 2rem);
}
dialog.scroll-dialog[open] {
  display: flex;
  flex-direction: column;
}
.dialog-scroll-toolbar {
  display: flex;
  flex: none;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  min-height: 3.25rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.dialog-scroll-toolbar a {
  padding: 0.5rem;
}
.dialog-scroll-toolbar .roll-dialog-close {
  float: none;
  margin: 0 0 0 auto;
}
.dialog-scroll-toolbar .rule-dialog-close {
  position: static;
  margin-left: auto;
}
.dialog-scroll-toolbar button {
  display: grid;
  place-items: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  color: var(--ink);
}
.dialog-scroll-content {
  flex: 1 1 auto;
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  padding: 1rem 1.25rem;
  scroll-behavior: auto;
}
.dialog-scroll-content > h2:first-child {
  margin-top: 0;
}
.scroll-dialog.rule-dialog {
  height: auto;
}
.scroll-dialog.rule-dialog .dialog-scroll-content {
  padding: 0 0 1rem;
}
.scroll-dialog.portrait-dialog .dialog-scroll-content > img {
  display: block;
  width: 100%;
  max-height: 75dvh;
  object-fit: contain;
}
.scroll-dialog.portrait-dialog .dialog-scroll-content > p {
  text-align: center;
}
.page-return-top:focus-visible,
.dialog-scroll-toolbar :is(a, button):focus-visible,
.dialog-scroll-content:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}
@media print {
  .page-return-top,
  .dialog-scroll-toolbar {
    display: none !important;
  }
}