/* Shared presentation for every page except the home page. */
.site-page {
  color-scheme: dark;
  --bg: #102c37;
  --night: var(--bg);
  --deep: #0b222c;
  --night-deep: var(--deep);
  --panel: #173b45;
  --sea: var(--panel);
  --sea-light: #214a50;
  --ink: #eee9dd;
  --paper: var(--ink);
  --muted: #a8bdba;
  --faint: #8aa4a8;
  --gold: #efd49a;
  --yellow: var(--gold);
  --gold-bright: #ffe9b7;
  --line: #ede8d82e;
  --rule: var(--line);
  --sans: "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}
.site-page::before { content: none; }
.site-page > :is(.shell, .page) {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: clamp(22px, 4.5vw, 64px);
}
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 28px;
  min-height: 88px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--ink);
  text-decoration: none;
}
.site-sun {
  width: 18px;
  height: 18px;
  flex: none;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--gold);
  box-shadow: inset 0 0 0 4px var(--bg);
}
.site-header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0 28px;
  margin-left: auto;
  min-width: 0;
}
.site-page-details {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 12px;
  line-height: 1.8;
}
.site-category { color: var(--muted); }
.site-page-name { color: var(--ink); font-weight: 600; letter-spacing: .04em; }
.site-version { color: var(--gold); font: 11px/1.8 Consolas, monospace; white-space: nowrap; }
.site-header .site-nav { gap: 22px; margin-left: 0; font-size: 12px; }
.site-page :is(a, button, input, select, summary):focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 4px;
}
.site-page button { min-height: 44px; border-radius: 3px; }
.site-page :is(input, select) { border-radius: 3px; }
.site-page h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(64px, 8vw, 112px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -.06em;
}
.site-page h1 > span { color: var(--gold); }
.site-page .info-main h1 { font-size: clamp(56px, 7vw, 88px); }
.site-page .main { padding-block: 48px; }
.site-page main > .intro { padding-block: 40px; }
.site-page main > .intro:has(.session) { flex-wrap: wrap; }
.site-page .intro:has(.session) h1 { white-space: nowrap; }
.site-page .session { display: flex; }
.site-page .session > div { flex-wrap: wrap; }
.site-page .session button { font-size: 12px; white-space: nowrap; }
.site-page .info-main { padding-block: 48px; }
.site-page :is(.board, .chart-panel, .distribution-panel, .paper-panel) {
  border: 1px solid #efd49a38;
  border-radius: 4px;
  box-shadow: 0 18px 52px #000c1126;
}
.site-page .tutorial { background: var(--deep); border-color: var(--line); border-radius: 4px; }
.site-page .info-lead { color: var(--muted); }
.site-page footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0 28px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  letter-spacing: .04em;
}
@media (max-width: 1050px) {
  .site-header-right { gap: 0 20px; }
  .site-page-details { gap: 6px 12px; }
}
@media (max-width: 760px) {
  .site-header { padding-block: 14px; gap: 4px; }
  .site-header-right { flex-basis: 100%; gap: 2px 20px; }
  .site-page-details { font-size: 11px; }
  .site-header .site-nav { gap: 20px; }
  .site-page .main { padding-block: 32px; }
  .site-page main > .intro { padding-block: 28px; }
  .site-page .info-main { padding-block: 36px; }
}
@media (prefers-reduced-motion: reduce) {
  .site-page *, .site-page *::before, .site-page *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}