body {
  background:
    radial-gradient(circle at 82% -10%, rgba(91, 121, 171, 0.14), transparent 34rem),
    radial-gradient(circle at 15% 105%, rgba(189, 73, 103, 0.09), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.5;
  transition: background-color 180ms ease, color 180ms ease;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--text);
  color: var(--bg);
  transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

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

.observatory-shell { min-height: 100vh; }

.side-panel {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 30;
  display: flex;
  width: var(--sidebar);
  flex-direction: column;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elevated) 92%, transparent);
  padding: 26px 18px 20px;
  backdrop-filter: blur(20px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 8px 26px;
}

.brand__mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--text);
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: -0.03em;
  box-shadow: inset 0 0 0 5px var(--bg-elevated), inset 0 0 0 6px var(--line);
}

.brand small, .brand strong { display: block; }

.brand small {
  color: var(--text-dim);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand strong { font-family: var(--font-display); font-size: 17px; font-weight: 500; }

.nav-label {
  margin: 10px 10px 8px;
  color: var(--text-dim);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.primary-nav { display: grid; gap: 4px; }

.primary-nav a {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 650;
  transition: 160ms ease;
}

.primary-nav a:hover { background: var(--panel); color: var(--text); }

.primary-nav a.is-active {
  border-color: var(--line);
  background: var(--panel-solid);
  color: var(--text);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.nav-glyph {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 10px;
}

.is-active .nav-glyph { border-color: rgba(239, 125, 132, 0.35); background: var(--accent-soft); color: var(--accent); }

.wing-switcher { margin-top: 25px; }

.wing-switcher__choice {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, var(--panel), transparent);
}

.wing-switcher__choice strong, .wing-switcher__choice small { display: block; }
.wing-switcher__choice strong { font-size: 12px; }
.wing-switcher__choice small { color: var(--text-dim); font-size: 9px; }

.wing-orbit {
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
}

.wing-orbit i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }

.side-panel__footer {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: auto;
  padding: 14px 10px 0;
  border-top: 1px solid var(--line);
}

.side-panel__footer strong, .side-panel__footer small { display: block; }
.side-panel__footer strong { font-size: 10px; }
.side-panel__footer small { color: var(--text-dim); font-size: 9px; }

.signal-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--warning); box-shadow: 0 0 12px var(--warning); }

.page-column { min-width: 0; margin-left: var(--sidebar); }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  height: 68px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  padding: 0 clamp(20px, 4vw, 56px);
  backdrop-filter: blur(18px);
}

.topbar__context, .topbar__actions { display: flex; align-items: center; gap: 10px; }

.breadcrumb { display: flex; align-items: center; gap: 7px; color: var(--text-dim); font-size: 11px; }
.breadcrumb b { color: var(--line-strong); font-weight: 400; }
.breadcrumb strong { color: var(--text-soft); font-weight: 650; }

.search-trigger, .icon-button {
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
}

.search-trigger {
  display: flex;
  height: 36px;
  align-items: center;
  gap: 8px;
  padding: 0 8px 0 11px;
  border-radius: 10px;
  color: var(--text-dim);
  font-size: 11px;
}

.search-trigger:hover, .icon-button:hover { border-color: var(--line-strong); background: var(--panel-hover); color: var(--text); }

kbd {
  padding: 2px 6px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--bg);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 9px;
}

.icon-button { display: grid; width: 36px; height: 36px; place-items: center; border-radius: 10px; color: var(--text-soft); }
.theme-toggle__day { display: none; }
html[data-theme='day'] .theme-toggle__day { display: inline; }
html[data-theme='day'] .theme-toggle__night { display: none; }
.mobile-menu { display: none; width: auto; padding: 0 10px; font-size: 10px; }

main { width: min(1440px, 100%); margin: 0 auto; padding: clamp(30px, 4vw, 58px); }

.mobile-scrim { display: none; }

.search-dialog {
  width: min(620px, calc(100% - 28px));
  max-height: min(640px, calc(100vh - 40px));
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--panel-solid);
  color: var(--text);
  box-shadow: var(--shadow);
}

.search-dialog::backdrop { background: rgba(3, 5, 9, 0.7); backdrop-filter: blur(5px); }
.search-dialog__box { padding: 10px; }
.search-dialog__input-row { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 10px; padding: 7px 8px 7px 13px; border-bottom: 1px solid var(--line); }
.search-dialog input { width: 100%; border: 0; outline: 0; background: transparent; color: var(--text); font-size: 16px; }
.search-dialog input::placeholder { color: var(--text-dim); }
.search-dialog__input-row button { padding: 5px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--bg); color: var(--text-dim); cursor: pointer; font-size: 9px; }
.search-dialog__label { padding: 16px 14px 7px; color: var(--text-dim); font-size: 9px; font-weight: 800; letter-spacing: 0.15em; text-transform: uppercase; }
.search-results { display: grid; gap: 3px; padding: 0 4px 5px; }
.search-result { display: flex; align-items: center; justify-content: space-between; padding: 12px; border-radius: 10px; color: var(--text-soft); font-size: 12px; }
.search-result:hover, .search-result:focus { background: var(--panel-hover); color: var(--text); }
.search-result small { color: var(--text-dim); }
.search-empty { padding: 24px 14px; color: var(--text-dim); font-family: var(--font-display); font-style: italic; text-align: center; }

.room-page { display: grid; min-height: calc(100vh - 190px); place-items: center; text-align: center; }
.room-page__inner { width: min(600px, 100%); }
.room-page h1 { margin: 12px 0; font-family: var(--font-display); font-size: clamp(42px, 7vw, 80px); font-weight: 400; letter-spacing: -0.05em; }
.room-page p { color: var(--text-soft); }
.eyebrow { color: var(--accent); font-size: 9px; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; }
.text-link { display: inline-flex; margin-top: 26px; padding-bottom: 3px; border-bottom: 1px solid var(--accent); color: var(--text); font-size: 12px; font-weight: 700; }

.content-page { width: min(780px, 100%); margin: 0 auto; }
.content-page__header { margin-bottom: 34px; padding-bottom: 26px; border-bottom: 1px solid var(--line); }
.content-page__header h1 { margin-top: 9px; font-family: var(--font-display); font-size: clamp(42px, 7vw, 76px); font-weight: 400; letter-spacing: -0.05em; line-height: 1; }
.prose { color: var(--text-soft); font-size: 15px; line-height: 1.78; }
.prose > * + * { margin-top: 1.15em; }
.prose h2, .prose h3 { margin-top: 1.8em; color: var(--text); font-family: var(--font-display); font-weight: 400; line-height: 1.2; }
.prose h2 { font-size: 30px; }
.prose h3 { font-size: 22px; }
.prose a { color: var(--text); border-bottom: 1px solid var(--accent); }
.prose ul, .prose ol { padding-left: 1.25em; }
.prose code { padding: 0.15em 0.35em; border: 1px solid var(--line); border-radius: 5px; background: var(--panel); color: var(--text); font-size: 0.9em; }
.prose pre { overflow-x: auto; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel-solid); }
.prose pre code { padding: 0; border: 0; background: transparent; }

@media (max-width: 900px) {
  .side-panel { transform: translateX(-104%); transition: transform 200ms ease; }
  body.nav-open { overflow: hidden; }
  body.nav-open .side-panel { transform: translateX(0); }
  .mobile-scrim { position: fixed; inset: 0; z-index: 25; background: rgba(3, 5, 9, 0.6); }
  body.nav-open .mobile-scrim { display: block; }
  .page-column { margin-left: 0; }
  .mobile-menu { display: grid; }
  .breadcrumb span, .breadcrumb b { display: none; }
}

@media (max-width: 560px) {
  .topbar { height: 60px; padding: 0 14px; }
  main { padding: 26px 16px 42px; }
  .search-trigger span:nth-child(2), .search-trigger kbd { display: none; }
  .search-trigger { width: 36px; justify-content: center; padding: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}