:root {
  color-scheme: dark;
  --page: #171a18;
  --surface: #202421;
  --surface-2: #292e2a;
  --line: #3e4740;
  --text: #f0f3ef;
  --muted: #aeb8af;
  --cyan: #00afff;
  --cyan-deep: #0087af;
  --green: #5fd700;
  --green-deep: #3f7400;
  --cream: #f2efe4;
  --mono: "DejaVu Sans Mono", "SFMono-Regular", Consolas, monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 24px 70px rgb(0 0 0 / 40%);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 300px;
  background:
    linear-gradient(rgb(255 255 255 / 2%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 2%) 1px, transparent 1px),
    var(--page);
  background-size: 42px 42px;
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

button, input { font: inherit; }
button { color: inherit; }
a { color: var(--cyan); }

.wrap {
  width: min(1320px, calc(100% - 32px));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 9px 13px;
  transform: translateY(-150%);
  background: #fff;
  color: #111;
}

.skip-link:focus { transform: none; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgb(255 255 255 / 9%);
  background: rgb(23 26 24 / 90%);
  backdrop-filter: blur(16px);
}

.topbar {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.prompt-brand {
  display: inline-flex;
  min-width: 0;
  align-items: stretch;
  color: #fff;
  font-family: var(--mono);
  font-size: .78rem;
  font-weight: 700;
  line-height: 34px;
  text-decoration: none;
  white-space: nowrap;
}

.seg {
  display: inline-block;
  padding: 0 17px 0 12px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 0 100%, 10px 50%);
}

.seg:first-child {
  padding-left: 11px;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 50%, calc(100% - 10px) 100%, 0 100%);
}

.seg + .seg { margin-left: -7px; }
.seg-tree { background: #005f87; }
.seg-dir { background: var(--cyan-deep); }
.seg-mode { background: var(--green-deep); }

.network-state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: .7rem;
  white-space: nowrap;
}

.state-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #d7af00;
  box-shadow: 0 0 0 3px rgb(215 175 0 / 12%);
}

.network-state.ready .state-dot {
  background: var(--green);
  box-shadow: 0 0 0 3px rgb(95 215 0 / 12%);
}

.network-state.offline .state-dot {
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgb(0 175 255 / 12%);
}

.app-shell {
  display: grid;
  align-items: start;
  grid-template-columns: minmax(230px, 300px) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding-block: 40px 72px;
}

.lookup-panel {
  position: sticky;
  top: 104px;
}

.kicker, .eyebrow {
  margin: 0 0 10px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.kicker span { color: var(--green); }

h1 {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(1.7rem, 2.8vw, 2.35rem);
  line-height: 1.08;
  letter-spacing: -.05em;
}

.lookup-heading > p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: .92rem;
}

.scope-note {
  margin-top: 20px;
  padding: 12px 13px;
  border: 1px solid var(--green-deep);
  border-left: 3px solid var(--green);
  border-radius: 6px;
  background: rgb(95 215 0 / 6%);
}

.scope-note strong {
  display: block;
  color: var(--text);
  font-family: var(--mono);
  font-size: .78rem;
}

.scope-note strong span { color: var(--green); }

.scope-note p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: .75rem;
  line-height: 1.5;
}

.scope-note a { white-space: nowrap; }

.search-box {
  display: flex;
  min-height: 48px;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
}

.search-box:focus-within {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgb(0 175 255 / 12%);
}

.search-box svg {
  width: 19px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--muted);
  stroke-linecap: round;
  stroke-width: 2;
}

.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 1rem;
}

.search-box input::placeholder { color: #89928b; }

.search-results:not(:empty) {
  overflow: hidden;
  margin-top: 7px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.search-result {
  display: flex;
  width: 100%;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border: 0;
  border-bottom: 1px solid rgb(255 255 255 / 7%);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.search-result:last-child { border-bottom: 0; }
.search-result:hover, .search-result:focus-visible { background: var(--surface-2); }
.search-result small { color: var(--green); font-family: var(--mono); }
.empty-result { margin: 0; padding: 12px; color: var(--muted); font-size: .85rem; }

.page-list {
  display: grid;
  gap: 7px;
  margin-top: 24px;
}

.page-card {
  display: grid;
  width: 100%;
  min-height: 58px;
  align-items: center;
  grid-template-columns: 38px 1fr;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.page-card:hover { background: rgb(255 255 255 / 3%); }
.page-card[aria-current="page"] { border-color: var(--green-deep); background: rgb(95 215 0 / 7%); }
.page-number { color: #8f9991; font-family: var(--mono); font-size: .8rem; }
.page-card[aria-current="page"] .page-number { color: var(--green); }
.page-card strong { display: block; font-size: .88rem; }
.page-card > span:last-child { min-width: 0; }
.page-card small { display: block; overflow: hidden; margin-top: 1px; color: var(--muted); font-size: .72rem; text-overflow: ellipsis; white-space: nowrap; }

.viewer { min-width: 0; }

.viewer-bar {
  display: flex;
  min-height: 59px;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.viewer-bar h2 { margin: 0; font-family: var(--mono); font-size: clamp(1.35rem, 2vw, 1.7rem); }
.eyebrow { margin-bottom: 3px; color: var(--green); }
.desktop-controls { display: flex; gap: 7px; }

.icon-button, .zoom-toolbar button {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  font-family: var(--mono);
  font-size: 1.15rem;
  cursor: pointer;
}

.icon-button:hover, .zoom-toolbar button:hover { border-color: var(--cyan); background: var(--surface-2); }
.icon-button:disabled, .mobile-controls button:disabled { opacity: .3; cursor: default; }

.guide-frame {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.image-button {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: 9px 9px 0 0;
  background: var(--cream);
  cursor: zoom-in;
}

.image-button img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 9px 9px 0 0;
}

.zoom-hint {
  position: absolute;
  right: 12px;
  bottom: 12px;
  padding: 7px 10px;
  border: 1px solid rgb(255 255 255 / 16%);
  border-radius: 5px;
  background: rgb(14 18 15 / 86%);
  color: #fff;
  font-family: var(--mono);
  font-size: .7rem;
  box-shadow: 0 4px 20px rgb(0 0 0 / 28%);
}

.guide-frame figcaption {
  padding: 13px 16px;
  color: var(--muted);
  font-size: .82rem;
}

.mobile-controls { display: none; }

.zoom-dialog {
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: #0f1110;
  color: var(--text);
}

.zoom-dialog::backdrop { background: rgb(0 0 0 / 82%); }
.zoom-dialog[open] { display: grid; grid-template-rows: auto 1fr; }

.zoom-toolbar {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: max(10px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 10px max(12px, env(safe-area-inset-left));
  border-bottom: 1px solid var(--line);
  background: var(--page);
  font-family: var(--mono);
  font-size: .78rem;
}

.zoom-toolbar > div { display: flex; align-items: center; gap: 6px; }
.zoom-toolbar button { width: 40px; height: 40px; }
.zoom-toolbar output { min-width: 54px; color: var(--muted); text-align: center; }
.zoom-toolbar .close-button { margin-left: 7px; border-color: #63504f; font-size: 1.6rem; }

.original-link {
  display: inline-grid;
  height: 40px;
  place-items: center;
  padding: 0 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--cyan);
  font-size: .68rem;
  text-decoration: none;
}

.original-link:hover { border-color: var(--cyan); background: var(--surface-2); }

.zoom-scroller {
  overflow: auto;
  overscroll-behavior: contain;
  padding: 16px;
  text-align: center;
  touch-action: pan-x pan-y pinch-zoom;
}

.zoom-scroller img {
  display: block;
  width: min(100%, 1122px);
  max-width: none;
  height: auto;
  margin: 0 auto;
  transform-origin: top center;
  box-shadow: var(--shadow);
}

.noscript { margin-bottom: 30px; padding: 16px; border: 1px solid #846f26; background: #302b19; }

@media (max-width: 800px) {
  body { padding-bottom: calc(76px + env(safe-area-inset-bottom)); }
  .wrap { width: min(100% - 20px, 620px); }
  .site-header { position: relative; }
  .topbar { min-height: 58px; }
  .seg-mode { display: none; }
  .network-state { font-size: 0; }
  .network-state .state-dot { width: 9px; height: 9px; }
  .app-shell { display: flex; flex-direction: column; gap: 22px; padding-block: 22px 28px; }
  .lookup-panel { position: static; width: 100%; }
  .lookup-heading h1 { font-size: clamp(1.7rem, 8vw, 2.35rem); }
  .lookup-heading > p:last-child { max-width: 42ch; }
  .search-box { margin-top: 18px; }
  .search-results:not(:empty) { position: absolute; z-index: 8; right: 10px; left: 10px; }
  .page-list { display: flex; overflow-x: auto; gap: 8px; margin-top: 18px; padding-bottom: 4px; scrollbar-width: none; scroll-snap-type: x proximity; }
  .page-list::-webkit-scrollbar { display: none; }
  .page-card { min-width: 240px; scroll-snap-align: start; }
  .viewer { width: 100%; }
  .viewer-bar { min-height: 0; margin-bottom: 10px; }
  .desktop-controls { display: none; }
  .guide-frame { border-radius: 7px; }
  .image-button img { border-radius: 6px 6px 0 0; }
  .zoom-hint { right: 8px; bottom: 8px; padding: 6px 8px; }
  .guide-frame figcaption { padding: 11px 12px; font-size: .75rem; }
  .mobile-controls {
    position: fixed;
    z-index: 15;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    min-height: calc(66px + env(safe-area-inset-bottom));
    align-items: start;
    grid-template-columns: 1fr auto 1fr;
    padding: 7px max(8px, env(safe-area-inset-right)) env(safe-area-inset-bottom) max(8px, env(safe-area-inset-left));
    border-top: 1px solid var(--line);
    background: rgb(23 26 24 / 94%);
    backdrop-filter: blur(16px);
  }
  .mobile-controls button {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    background: transparent;
    font-family: var(--mono);
    font-size: .76rem;
    font-weight: 700;
  }
  .mobile-page { align-self: center; padding: 0 12px; color: var(--green); font-family: var(--mono); font-size: .75rem; }
  .zoom-scroller { padding: 8px; }
  .zoom-toolbar strong { max-width: 105px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}

@media (max-width: 390px) {
  .seg { padding-right: 14px; }
  .topbar { gap: 10px; }
  .zoom-toolbar output { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}