/* Shared ledger shell. Loaded after page-local critical CSS. */
:root {
  --paper: #f2efe6;
  --signal: #b3661f;
  --deep: #9b6b2d;
}

body::before {
  content: "THE PHILOSOPHICAL LEDGER";
  position: fixed;
  right: 8px;
  top: 50%;
  z-index: 20;
  color: color-mix(in srgb, var(--signal) 46%, transparent);
  font-family: var(--mono, "IBM Plex Mono", monospace);
  font-size: 8px;
  letter-spacing: .18em;
  writing-mode: vertical-rl;
  pointer-events: none;
}

.nav .brand::before {
  content: "";
  display: inline-block;
  width: 9px;
  height: 9px;
  margin-right: 9px;
  border: 1px solid var(--signal);
  border-radius: 50%;
  background: radial-gradient(circle, var(--signal) 0 35%, transparent 38%);
}

.nav ul a,
.room-nav a {
  text-underline-offset: 4px;
}

.room-nav {
  position: sticky;
  top: 60px;
  z-index: 40;
  backdrop-filter: blur(10px);
}

.room-nav .wrap {
  scrollbar-width: none;
}

.room-nav .wrap::-webkit-scrollbar {
  display: none;
}

.page-dateline {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  color: var(--slate);
  font-family: var(--mono);
  font-size: .62rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  body::before { display: none; }

  header .nav {
    min-height: 60px;
    height: auto;
    gap: 16px;
    padding-top: 10px;
    padding-bottom: 10px;
  }

  .nav ul {
    display: flex !important;
    max-width: 62vw;
    gap: 14px;
    overflow-x: auto;
    list-style: none;
    scrollbar-width: none;
  }

  .nav ul::-webkit-scrollbar { display: none; }
  .nav ul li { flex: 0 0 auto; }
  .nav ul a { font-size: .61rem; }

  .room-nav {
    top: 60px;
  }

  .room-nav .wrap {
    flex-wrap: nowrap !important;
    overflow-x: auto;
  }

  .room-nav a { flex: 0 0 auto; }
}

@media print {
  header,
  .room-nav,
  footer,
  body::before,
  .print-hide { display: none !important; }

  body { background: #fff !important; color: #111 !important; }
  .wrap { max-width: none !important; }
  a { color: inherit !important; text-decoration: none !important; }
  section { break-inside: avoid; }
}