@layer reset, base, shell, components, views, ported, responsive;

@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  html { scroll-behavior: smooth; }
  body, h1, h2, h3, h4, p, ul, ol, dl, dd { margin: 0; }
  button, input, select { font: inherit; }
  button { color: inherit; }
  img, svg { display: block; max-width: 100%; }
}

@layer base {
  :root {
    --ink: #f4efe6;
    --muted: #a5adbd;
    --faint: #626b7e;
    --paper: #0c0e15;
    --panel: #131722;
    --panel-2: #1a2030;
    --line: rgba(182, 191, 218, .14);
    --line-strong: rgba(182, 191, 218, .3);
    --accent: #ffb454;
    --signal: #7899ff;
    --accent-ink: #1a1208;
    --mint: #82f5b2;
    --cyan: #6ee7e7;
    --amber: #f6c96b;
    --coral: #ff8e73;
    --violet: #bda7ff;
    --radius: 18px;
    --mono: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  }

  body {
    min-width: 320px;
    min-height: 100vh;
    min-height: 100svh;
    color: var(--ink);
    background:
      radial-gradient(circle at 82% -15%, rgba(88, 112, 218, .16), transparent 42rem),
      radial-gradient(circle at 18% 110%, rgba(186, 89, 34, .09), transparent 36rem),
      var(--paper);
    font-family: var(--sans);
    -webkit-font-smoothing: antialiased;
  }

  body::before {
    position: fixed;
    inset: 0;
    z-index: 20;
    pointer-events: none;
    content: "";
    opacity: .065;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.25'/%3E%3C/svg%3E");
    mix-blend-mode: overlay;
  }

  a { color: inherit; }
  button, a { -webkit-tap-highlight-color: transparent; }
  button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
  }

  .eyebrow {
    color: var(--accent);
    font: 700 .68rem/1.2 var(--mono);
    letter-spacing: .16em;
    text-transform: uppercase;
  }

  .skip-link {
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 100;
    padding: .7rem 1rem;
    color: var(--accent-ink);
    background: var(--accent);
    border-radius: 2px;
    transform: translateY(-180%);
  }
  .skip-link:focus { transform: none; }
}

@layer shell {
  .boot-screen {
    position: fixed;
    inset: 0;
    z-index: 90;
    display: grid;
    place-content: center;
    justify-items: center;
    background: #090b11;
    transition: opacity .5s ease, visibility .5s ease;
  }
  .boot-screen.done { opacity: 0; visibility: hidden; }
  .boot-screen h1 { margin: .65rem 0 .5rem; font-size: clamp(2rem, 5vw, 4rem); letter-spacing: -.055em; }
  .boot-screen > p:last-child { color: var(--muted); }
  .boot-mark { display: flex; gap: 7px; height: 42px; align-items: end; margin-bottom: 2rem; }
  .boot-mark span { width: 8px; height: 40%; background: var(--accent); animation: boot 1s ease-in-out infinite alternate; }
  .boot-mark span:nth-child(2) { height: 100%; animation-delay: -.35s; }
  .boot-mark span:nth-child(3) { height: 65%; background: var(--signal); animation-delay: -.65s; }
  @keyframes boot { to { height: 100%; filter: drop-shadow(0 0 8px rgba(255,180,84,.45)); } }

  .app-shell { min-height: 100vh; min-height: 100svh; }
  .app-shell:not([hidden]) { display: grid; grid-template-columns: 252px minmax(0, 1fr); }
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 30;
    display: flex;
    width: 252px;
    flex-direction: column;
    padding: 28px 22px 22px;
    overflow-y: auto;
    background:
      linear-gradient(90deg, transparent 0 21px, rgba(120,153,255,.045) 21px 22px, transparent 22px),
      #090b12;
    border-right: 1px solid var(--line);
    box-shadow: 18px 0 70px rgba(0,0,0,.16);
  }
  .brand { display: flex; align-items: center; gap: 13px; margin: 0 0 10px; text-decoration: none; }
  .brand-mark { width: 48px; height: 48px; flex: 0 0 auto; filter: drop-shadow(0 7px 18px rgba(120,153,255,.14)); }
  .brand-copy strong, .brand-copy b, .brand-copy em { display: block; }
  .brand-copy strong { color: #f7f0e4; font: 780 .78rem/1 var(--sans); letter-spacing: .1em; }
  .brand-copy b { margin-top: 3px; color: var(--accent); font: 780 .76rem/1 var(--sans); letter-spacing: .18em; }
  .brand-copy em { margin-top: 5px; color: #80899d; font: 600 .48rem/1 var(--mono); font-style: normal; letter-spacing: .08em; text-transform: uppercase; }
  .brand-edition { display: flex; align-items: center; justify-content: space-between; margin: 0 0 42px 61px; color: #535d71; font: 600 .44rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
  .brand-edition span { color: var(--accent); }
  .sidebar-project-links { display: none; }
  .nav-label { display: flex; align-items: center; justify-content: space-between; margin: 0; padding: 0 5px 12px 12px; color: #5e687c; border-bottom: 1px solid var(--line); font: 700 .52rem var(--mono); letter-spacing: .14em; text-transform: uppercase; }
  .nav-label b { color: var(--signal); font-weight: 700; }
  .concept-nav { display: grid; }
  .nav-item {
    display: grid;
    grid-template-columns: 32px minmax(0,1fr) 14px;
    align-items: center;
    width: 100%;
    min-height: 61px;
    padding: 10px 5px 10px 12px;
    color: var(--muted);
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--line);
    border-left: 2px solid transparent;
    border-radius: 0;
    text-align: left;
    cursor: pointer;
    transition: color .2s, background .2s, border-color .2s;
  }
  .nav-item:hover { color: var(--ink); background: linear-gradient(90deg, rgba(120,153,255,.08), transparent 82%); border-left-color: rgba(120,153,255,.35); }
  .nav-item.active { color: var(--ink); background: linear-gradient(90deg, rgba(120,153,255,.16), rgba(120,153,255,.025) 72%, transparent); border-left-color: var(--signal); }
  .nav-index { color: #596379; font: 650 .54rem var(--mono); letter-spacing: .06em; }
  .nav-item.active .nav-index { color: var(--accent); }
  .nav-copy strong, .nav-copy em { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-copy strong { color: inherit; font-size: .76rem; font-weight: 680; }
  .nav-copy em { margin-top: 4px; color: #737e94; font: 500 .55rem var(--mono); font-style: normal; letter-spacing: .025em; }
  .nav-copy em b { color: var(--accent); font-weight: 800; }
  .nav-arrow { color: var(--accent); font-size: .65rem; opacity: 0; transform: translate(-4px,4px); transition: opacity .18s, transform .18s; }
  .nav-item:hover .nav-arrow, .nav-item.active .nav-arrow { opacity: 1; transform: none; }
  .sidebar-foot { margin-top: auto; padding: 16px 10px 4px; border-top: 1px solid var(--line); }
  .sidebar-foot p { margin-top: 8px; color: var(--faint); font: .64rem var(--mono); }
  .sidebar-foot strong { color: var(--muted); }
  .reading-meter { margin-bottom: 16px; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
  .reading-meter > div { display: flex; align-items: center; justify-content: space-between; gap: 8px; color: var(--faint); font: .54rem var(--mono); text-transform: uppercase; }
  .reading-meter > div strong { color: var(--accent); font-size: .58rem; }
  .reading-meter > i { display: block; height: 2px; margin: 8px 0 10px; overflow: hidden; background: rgba(120,153,255,.09); }
  .reading-meter > i b { display: block; width: 0; height: 100%; background: linear-gradient(90deg,var(--signal),var(--accent)); transition: width .3s ease; }
  .reading-meter > button { padding: 0; color: #8996b2; background: none; border: 0; font: .53rem/1.4 var(--mono); text-align: left; cursor: pointer; }
  .reading-meter > button:hover { color: var(--accent); }
  .reading-meter > button:disabled { color: var(--faint); cursor: default; }
  .collection-pulse { color: var(--muted); font: .62rem var(--mono); }
  .collection-pulse span { display: inline-block; width: 6px; height: 6px; margin-right: 7px; background: var(--signal); box-shadow: 0 0 0 3px rgba(120,153,255,.1); transform: rotate(45deg); }

  .workspace { grid-column: 2; min-width: 0; }
  .topbar {
    position: sticky;
    top: 0;
    z-index: 25;
    display: flex;
    min-height: 75px;
    align-items: center;
    gap: 18px;
    padding: 13px clamp(22px, 4vw, 64px);
    background: rgba(12, 14, 21, .86);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(22px);
  }
  .global-search {
    display: flex;
    width: min(580px, 55vw);
    align-items: center;
    gap: 10px;
    padding: 0 14px;
    color: var(--faint);
    background: rgba(20, 24, 36, .82);
    border: 1px solid var(--line);
    border-radius: 3px;
  }
  .global-search > span { color: var(--accent); }
  .global-search:focus-within { border-color: rgba(120,153,255,.55); box-shadow: 0 0 0 3px rgba(120,153,255,.07); }
  .global-search input { width: 100%; padding: 10px 0; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: .78rem; }
  .global-search input::placeholder { color: var(--faint); }
  kbd { padding: 3px 6px; color: var(--faint); background: #07100e; border: 1px solid var(--line); border-radius: 5px; font: .6rem var(--mono); }
  .project-links { display: flex; align-items: center; gap: 5px; margin-left: auto; }
  .project-links a {
    display: inline-flex;
    min-height: 38px;
    align-items: center;
    gap: 7px;
    padding: 7px 9px;
    color: var(--muted);
    border: 1px solid transparent;
    border-radius: 3px;
    font: 650 .57rem var(--mono);
    text-decoration: none;
    white-space: nowrap;
  }
  .project-links a:hover { color: var(--ink); background: rgba(120,153,255,.07); border-color: var(--line); }
  .project-links a span { display: grid; width: 24px; height: 24px; place-items: center; color: var(--accent); background: rgba(255,180,84,.08); border: 1px solid rgba(255,180,84,.18); font-size: .51rem; letter-spacing: .03em; }
  .project-links a:nth-child(2) span { color: var(--mint); background: rgba(130,245,178,.07); border-color: rgba(130,245,178,.16); }
  .project-links a:nth-child(3) span { color: var(--signal); background: rgba(120,153,255,.08); border-color: rgba(120,153,255,.18); }
  .project-links a.sponsor-link { color: var(--coral); }
  .project-links a.sponsor-link span { color: var(--coral); background: rgba(255,142,115,.09); border-color: rgba(255,142,115,.22); }
  .project-links a.sponsor-link:hover { color: var(--ink); background: rgba(255,142,115,.09); border-color: rgba(255,142,115,.28); }
  .top-actions { display: flex; align-items: center; gap: 8px; }
  .quiet-button, .sound-button, .mobile-menu {
    padding: 10px 13px;
    color: var(--muted);
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 3px;
    font: 650 .62rem var(--mono);
    letter-spacing: .02em;
    cursor: pointer;
  }
  .quiet-button:hover, .sound-button:hover { color: var(--ink); border-color: var(--line-strong); }
  .site-fullscreen[hidden] { display: none; }
  .site-fullscreen[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .sound-button { width: 38px; color: var(--accent); font-weight: 900; }
  .sound-button[aria-pressed="true"] { color: var(--faint); text-decoration: line-through; }
  .mobile-menu { display: none; }

  main { padding: clamp(24px, 3vw, 42px) clamp(22px, 4vw, 64px) 76px; }
  .site-footer { display: grid; grid-template-columns: minmax(100px, .25fr) minmax(0, 1fr); gap: 22px; margin: 0 clamp(22px,4vw,64px); padding: 24px 0 max(30px,env(safe-area-inset-bottom)); color: var(--faint); border-top: 1px solid var(--line); }
  .credit-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px 28px; font: .64rem/1.55 var(--mono); }
  .credit-list a { color: var(--muted); text-underline-offset: 3px; }
  .credit-list a:hover { color: var(--accent); }
  .support-block { display: grid; gap: 14px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
  .support-copy { max-width: 74ch; color: var(--muted); font: .68rem/1.65 var(--mono); }
  .support-copy strong { color: var(--ink); font-weight: 650; }
  .support-actions { display: grid; grid-template-columns: repeat(auto-fit,minmax(215px,1fr)); gap: 8px; }
  .support-action {
    display: grid;
    grid-template-columns: 26px minmax(0,1fr);
    align-items: center;
    gap: 2px 11px;
    padding: 11px 13px;
    color: var(--muted);
    background: rgba(20,24,36,.42);
    border: 1px solid var(--line);
    border-radius: 3px;
    text-decoration: none;
  }
  .support-action span { grid-row: span 2; display: grid; width: 26px; height: 26px; place-items: center; color: var(--faint); background: rgba(182,191,218,.05); border: 1px solid var(--line); font-size: .7rem; }
  .support-action b { color: var(--ink); font: 650 .63rem var(--mono); letter-spacing: .01em; }
  .support-action em { color: var(--faint); font: .58rem/1.4 var(--mono); font-style: normal; }
  .support-action:hover { border-color: var(--line-strong); }
  .support-action.is-star:hover { border-color: rgba(255,180,84,.4); }
  .support-action.is-star span { color: var(--accent); background: rgba(255,180,84,.08); border-color: rgba(255,180,84,.2); }
  .support-action.is-sponsor:hover { border-color: rgba(255,142,115,.42); }
  .support-action.is-sponsor span { color: var(--coral); background: rgba(255,142,115,.09); border-color: rgba(255,142,115,.22); }
  .view-intro { position: relative; display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 28px; padding-top: 17px; border-top: 1px solid var(--line); }
  .view-intro::before { position: absolute; top: -3px; left: 0; width: 38px; height: 5px; content: ""; background: linear-gradient(90deg,var(--accent) 0 45%,transparent 45% 55%,var(--signal) 55%); }
  .view-intro h1 { margin: 9px 0 10px; font-family: "Iowan Old Style", "Palatino Linotype", Georgia, serif; font-size: clamp(2.55rem, 5.2vw, 5.6rem); font-weight: 600; line-height: .91; letter-spacing: -.052em; }
  .view-intro > div:first-child > p:last-child { max-width: 680px; color: var(--muted); font-size: clamp(.82rem, 1.2vw, .98rem); line-height: 1.65; }
  .view-intro-tools { display: grid; flex: 0 0 auto; justify-items: stretch; gap: 12px; }
  .view-metric { min-width: 150px; padding-left: 20px; border-left: 1px solid var(--line-strong); }
  .view-metric span { display: block; color: var(--signal); font: 300 clamp(1.8rem, 3vw, 3rem) var(--mono); letter-spacing: -.07em; }
  .view-metric small { color: var(--faint); font: .61rem/1.45 var(--mono); text-transform: uppercase; }
  .view-fullscreen { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 38px; padding: 8px 12px; color: var(--muted); background: rgba(20,24,36,.76); border: 1px solid var(--line); border-radius: 3px; font: 650 .58rem var(--mono); cursor: pointer; }
  .view-fullscreen:hover { color: var(--ink); border-color: var(--line-strong); }
  .view-fullscreen[hidden] { display: none; }
  .view-root { min-height: 600px; }

  main:fullscreen {
    width: 100%;
    height: 100dvh;
    overflow: auto;
    padding: clamp(18px,3vw,38px);
    background: var(--paper);
  }
  main:fullscreen .view-intro { margin-bottom: 18px; padding-top: 13px; }
  main:fullscreen .view-root { min-height: 0; }
  main:fullscreen .constellation-frame { height: calc(100dvh - 178px); min-height: 480px; }
  main:fullscreen .hacker-terminal { height: calc(100dvh - 178px); grid-template-rows: auto minmax(0,1fr) auto auto; }
  main:fullscreen .signal-observatory, main:fullscreen .investigation-shell { min-height: calc(100dvh - 178px); }
  /* The reading views simply take the whole viewport and scroll inside it. */
  main:fullscreen .museum-map, main:fullscreen .library-hall { min-height: 0; }
  main:fullscreen .favourites-view { min-height: calc(100dvh - 178px); }
}

@layer components {
  .section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin: 34px 0 16px; }
  .section-head h2 { font-size: clamp(1rem, 2vw, 1.4rem); letter-spacing: -.025em; }
  .section-head p { color: var(--faint); font: .65rem var(--mono); }
  .control-strip { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 22px; }
  .year-pill, .filter-pill, .text-button {
    padding: 7px 11px;
    color: var(--muted);
    background: rgba(20, 24, 36, .78);
    border: 1px solid var(--line);
    border-radius: 3px;
    font: 650 .66rem var(--mono);
    cursor: pointer;
    transition: .18s ease;
  }
  .year-pill:hover, .filter-pill:hover, .text-button:hover { color: var(--ink); border-color: var(--line-strong); transform: translateY(-1px); }
  .year-pill.active, .filter-pill.active { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .year-pill.preliminary { display: inline-flex; align-items: center; gap: 6px; border-color: rgba(255,180,84,.45); }
  .year-pill.preliminary small { padding: 2px 4px; color: var(--accent); background: rgba(255,180,84,.1); border: 1px solid rgba(255,180,84,.25); border-radius: 2px; font-size: .42rem; letter-spacing: .08em; }
  .year-pill.preliminary.active small { color: var(--accent-ink); background: rgba(26,18,8,.12); border-color: rgba(26,18,8,.22); }
  .preliminary-notice { display: flex; align-items: center; gap: 14px; margin: 0 0 22px; padding: 12px 15px; color: #d9deec; background: linear-gradient(90deg,rgba(255,180,84,.12),rgba(120,153,255,.08)); border: 1px solid rgba(255,180,84,.26); border-left: 3px solid var(--accent); font: .62rem/1.5 var(--mono); }
  .preliminary-notice b { flex: 0 0 auto; color: var(--accent); font-size: .57rem; letter-spacing: .08em; }
  .preliminary-notice + .room-marquee .room-number { font-size: clamp(3.2rem, 10vw, 8rem); }
  .preliminary-token { color: var(--accent); font-size: .5rem; letter-spacing: .06em; }
  .select-control {
    padding: 8px 34px 8px 11px;
    color: var(--ink);
    background: var(--panel) no-repeat right 10px center;
    border: 1px solid var(--line);
    border-radius: 8px;
    font: .68rem var(--mono);
  }
  .artifact-card {
    position: relative;
    display: flex;
    min-height: 176px;
    flex-direction: column;
    overflow: hidden;
    padding: 18px;
    background: linear-gradient(145deg, rgba(17, 38, 32, .92), rgba(8, 20, 17, .92));
    border: 1px solid var(--line);
    border-radius: 14px;
    cursor: pointer;
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }
  .artifact-card::before { position: absolute; inset: 0 0 auto; height: 2px; content: ""; background: var(--card-color, var(--mint)); opacity: .45; }
  .artifact-card::after { position: absolute; right: -34px; bottom: -40px; width: 100px; height: 100px; content: ""; background: var(--card-color, var(--mint)); border-radius: 50%; opacity: .04; filter: blur(8px); }
  .artifact-card:hover { z-index: 2; border-color: color-mix(in srgb, var(--card-color, var(--mint)) 40%, transparent); transform: translateY(-5px); box-shadow: 0 20px 50px rgba(0, 0, 0, .27); }
  .artifact-card.is-read { background: linear-gradient(145deg, rgba(17, 38, 32, .72), rgba(8, 20, 17, .76)); }
  .artifact-card.is-read::before { opacity: .18; }
  .card-read { position: absolute; right: 12px; bottom: 11px; z-index: 2; padding: 4px 6px; color: var(--accent-ink); background: var(--accent); border-radius: 2px; font: 800 .48rem var(--mono); text-transform: uppercase; }
  .card-favourite { position: absolute; right: 12px; bottom: 11px; z-index: 2; color: var(--accent); font-size: .95rem; text-shadow: 0 0 14px rgba(255,180,84,.5); }
  .artifact-card.is-read .card-favourite { bottom: 41px; }
  .artifact-card.is-read .card-foot { padding-right: 48px; }
  .artifact-card.is-favourite { border-color: rgba(255,180,84,.34); box-shadow: inset 0 0 0 1px rgba(255,180,84,.05); }
  .artifact-card .card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; color: var(--faint); font: .6rem var(--mono); text-transform: uppercase; }
  .artifact-card h3 { margin: 19px 0 12px; font-size: .92rem; line-height: 1.28; letter-spacing: -.02em; }
  .artifact-card .card-foot { display: flex; align-items: end; justify-content: space-between; gap: 10px; margin-top: auto; color: var(--muted); font: .59rem var(--mono); }
  .rank-token { color: var(--amber); }
  .status-dot { display: inline-block; width: 5px; height: 5px; margin-right: 5px; background: var(--mint); border-radius: 50%; }
  .status-dot.partial { background: var(--amber); }
  .status-dot.missing { background: var(--coral); }
  .topic-XSS { --card-color: #ff8e73; }
  .topic-HTTP { --card-color: #6ee7e7; }
  .topic-Identity { --card-color: #bda7ff; }
  .topic-Injection { --card-color: #f6c96b; }
  .topic-Browser { --card-color: #82f5b2; }
  .topic-Supply { --card-color: #ffb4d1; }
  .topic-Server { --card-color: #80adff; }
  .topic-Crypto { --card-color: #c7ee83; }
  .topic-AI { --card-color: #ff9f7a; }
  .topic-Other { --card-color: #93aaa2; }
  .empty-state { padding: 70px 20px; color: var(--muted); border: 1px dashed var(--line-strong); border-radius: var(--radius); text-align: center; }

  .artifact-dialog {
    width: min(760px, calc(100vw - 28px));
    max-height: min(780px, calc(100vh - 28px));
    overflow: auto;
    padding: 0;
    color: var(--ink);
    background: #0b1815;
    border: 1px solid var(--line-strong);
    border-radius: 20px;
    box-shadow: 0 40px 120px rgba(0, 0, 0, .72);
  }
  .artifact-dialog::backdrop { background: rgba(1, 6, 5, .82); backdrop-filter: blur(8px); }
  .dialog-close { position: absolute; top: 16px; right: 16px; z-index: 2; width: 36px; height: 36px; color: var(--muted); background: rgba(4, 12, 10, .6); border: 1px solid var(--line); border-radius: 50%; cursor: pointer; }
  .artifact-glow { height: 9px; background: linear-gradient(90deg, var(--dialog-color, var(--mint)), transparent 70%); }
  .dialog-body { position: relative; padding: clamp(26px, 6vw, 54px); }
  .dialog-body h2 { max-width: 620px; margin: 12px 0 18px; font-size: clamp(1.6rem, 4vw, 3.15rem); line-height: 1.02; letter-spacing: -.055em; }
  .artifact-badges { display: flex; flex-wrap: wrap; gap: 6px; }
  .artifact-badges span { padding: 5px 8px; color: var(--muted); background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: 5px; font: .6rem var(--mono); }
  .artifact-context { margin: 28px 0; padding: 17px 19px; color: #b5c8c0; background: rgba(130,245,178,.045); border-left: 2px solid var(--dialog-color, var(--mint)); font-size: .78rem; line-height: 1.65; }
  .artifact-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; overflow: hidden; margin-bottom: 28px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; }
  .artifact-facts div { min-width: 0; padding: 13px; background: var(--panel); }
  .artifact-facts dt { margin-bottom: 5px; color: var(--faint); font: .56rem var(--mono); text-transform: uppercase; }
  .artifact-facts dd { overflow: hidden; color: var(--ink); font: .7rem var(--mono); text-overflow: ellipsis; white-space: nowrap; }
  .artifact-actions { display: flex; flex-wrap: wrap; gap: 9px; }
  .artifact-actions a, .artifact-actions button { display: inline-flex; align-items: center; gap: 8px; padding: 11px 14px; color: var(--accent-ink); background: var(--accent); border: 1px solid var(--accent); border-radius: 3px; font: 750 .66rem var(--mono); text-decoration: none; cursor: pointer; }
  .artifact-actions .secondary { color: var(--ink); background: transparent; border-color: var(--line-strong); }
  .artifact-actions .read-toggle[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .artifact-actions .favourite-toggle[aria-pressed="true"] { color: #2b1b05; background: #ffb454; border-color: #ffb454; }
  .artifact-actions span.disabled { padding: 11px 14px; color: var(--faint); background: rgba(255,255,255,.025); border: 1px dashed var(--line); border-radius: 8px; font: .66rem var(--mono); }
  .rights-note { margin-top: 25px; color: var(--faint); font: .58rem/1.6 var(--mono); }
  .artifact-dialog.signal-artifact { color: #eef3ff; background: radial-gradient(circle at 5% 0,rgba(120,153,255,.16),transparent 34%),#090e18; border-color: rgba(120,153,255,.34); box-shadow: 0 40px 130px rgba(0,0,0,.78),0 0 55px rgba(120,153,255,.1); }
  .artifact-dialog.signal-artifact::backdrop { background: rgba(3,7,14,.87); }
  .artifact-dialog.signal-artifact .artifact-glow { background: linear-gradient(90deg,#7899ff,#6ee7e7 38%,transparent 78%); }
  .artifact-dialog.signal-artifact .dialog-close { color: #9eacc5; background: rgba(6,11,21,.74); border-color: rgba(120,153,255,.2); }
  .artifact-dialog.signal-artifact .artifact-badges span { color: #9eacc1; background: rgba(120,153,255,.04); border-color: rgba(120,153,255,.18); }
  .artifact-dialog.signal-artifact .artifact-context { color: #c0cae0; background: linear-gradient(90deg,rgba(120,153,255,.1),rgba(120,153,255,.035)); border-left-color: #7899ff; }
  .artifact-dialog.signal-artifact .artifact-facts { background: rgba(120,153,255,.16); border-color: rgba(120,153,255,.16); }
  .artifact-dialog.signal-artifact .artifact-facts div { background: #0c1321; }
  .artifact-dialog.signal-artifact .artifact-facts dt, .artifact-dialog.signal-artifact .rights-note { color: #68758d; }
  .artifact-dialog.signal-artifact .artifact-actions a, .artifact-dialog.signal-artifact .artifact-actions button { color: #07101d; background: #7899ff; border-color: #8aa7ff; }
  .artifact-dialog.signal-artifact .artifact-actions .secondary { color: #dbe4f6; background: transparent; border-color: rgba(120,153,255,.3); }
  .artifact-dialog.signal-artifact .artifact-actions .secondary:hover { background: rgba(120,153,255,.08); border-color: rgba(120,153,255,.55); }
  .artifact-dialog.signal-artifact .artifact-actions .read-toggle[aria-pressed="true"] { color: #07101d; background: #7899ff; border-color: #8aa7ff; }
  .toast { position: fixed; right: 22px; bottom: 22px; z-index: 70; padding: 11px 14px; color: var(--accent-ink); background: var(--accent); border-radius: 3px; font: 700 .66rem var(--mono); opacity: 0; transform: translateY(12px); pointer-events: none; transition: .22s ease; }
  .toast.show { opacity: 1; transform: none; }

  .reader-dialog {
    width: min(1180px, calc(100vw - 24px));
    height: min(900px, calc(100vh - 24px));
    max-width: none;
    max-height: none;
    overflow: hidden;
    padding: 0;
    color: var(--ink);
    background: #0b1512;
    border: 1px solid var(--line-strong);
    border-radius: 18px;
    box-shadow: 0 45px 140px rgba(0,0,0,.78);
    color-scheme: dark;
  }
  .reader-dialog::backdrop { background: rgba(1,5,4,.88); backdrop-filter: blur(9px); }
  .reader-bar { display: flex; min-height: 72px; align-items: center; gap: 18px; padding: 12px 17px 12px 22px; background: rgba(8,20,17,.96); border-bottom: 1px solid var(--line); }
  .reader-bar > div:first-child { min-width: 0; margin-right: auto; }
  .reader-bar strong { display: block; max-width: 520px; overflow: hidden; margin-top: 5px; font-size: .77rem; text-overflow: ellipsis; white-space: nowrap; }
  .reader-actions { display: flex; align-items: center; gap: 7px; }
  .reader-actions a, .reader-actions button { padding: 8px 10px; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 7px; font: 650 .58rem var(--mono); text-decoration: none; cursor: pointer; }
  .reader-actions button[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .reader-actions .reading-theme-toggle.is-light { color: #17201c; background: #f1e9dc; border-color: #fffaf1; }
  .reader-close { display: grid; width: 36px; height: 36px; place-items: center; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 50%; font-size: 1.1rem; cursor: pointer; }
  .reader-progress { height: 2px; background: rgba(120,153,255,.08); }
  .reader-progress i { display: block; width: 0; height: 100%; background: linear-gradient(90deg,var(--signal),var(--accent)); transition: width .1s linear; }
  .reader-layout { display: grid; grid-template-columns: 225px minmax(0,1fr); height: calc(100% - 74px); }
  .reader-sidebar { overflow: auto; padding: 30px 22px; background: #08110f; border-right: 1px solid var(--line); }
  .reader-sidebar nav { display: grid; gap: 3px; margin-top: 15px; }
  .reader-sidebar nav button { padding: 6px 8px; color: var(--faint); background: transparent; border: 0; border-left: 1px solid var(--line); font: .58rem/1.35 var(--mono); text-align: left; transition: .15s; cursor: pointer; }
  .reader-sidebar nav button:hover { color: var(--signal); border-color: var(--signal); }
  .reader-sidebar nav button.sub { padding-left: 18px; }
  .reader-safety { margin-top: 28px; padding-top: 16px; color: var(--faint); border-top: 1px solid var(--line); font: .54rem/1.6 var(--mono); }
  .reader-scroll { overflow: auto; scroll-behavior: smooth; scrollbar-color: var(--line-strong) transparent; }
  .markdown-body { width: min(100%, 870px); margin: 0 auto; padding: clamp(34px,6vw,72px) clamp(24px,6vw,76px) 100px; color: #c8d8d0; font-size: .88rem; line-height: 1.78; }
  .markdown-body h1, .markdown-body h2, .markdown-body h3, .markdown-body h4 { scroll-margin-top: 25px; color: var(--ink); line-height: 1.15; letter-spacing: -.035em; }
  .markdown-body h1 { margin: 0 0 28px; font-size: clamp(2rem,5vw,4rem); letter-spacing: -.06em; }
  .markdown-body h2 { margin: 56px 0 18px; padding-bottom: 11px; border-bottom: 1px solid var(--line); font-size: 1.65rem; }
  .markdown-body h3 { margin: 38px 0 13px; font-size: 1.15rem; }
  .markdown-body h4 { margin: 28px 0 10px; font-size: .92rem; }
  .markdown-body p { margin: 0 0 18px; }
  .markdown-body a { color: var(--cyan); text-decoration-color: rgba(110,231,231,.34); text-underline-offset: 3px; }
  .markdown-body strong { color: #f0faf4; }
  .markdown-body code { padding: .13em .34em; color: #bff8d2; background: rgba(130,245,178,.075); border: 1px solid rgba(130,245,178,.1); border-radius: 4px; font: .82em/1.5 var(--mono); }
  .markdown-body pre { overflow: auto; margin: 22px 0 28px; padding: 20px; color: #d7dced; background: #090b11; border: 1px solid var(--line); border-radius: 3px; box-shadow: inset 3px 0 var(--signal); tab-size: 2; }
  .markdown-body pre code { padding: 0; color: inherit; background: none; border: 0; font-size: .72rem; }
  .markdown-body blockquote { margin: 24px 0; padding: 16px 20px; color: #a8bbb2; background: rgba(246,201,107,.04); border-left: 3px solid var(--amber); }
  .markdown-body blockquote p:last-child { margin-bottom: 0; }
  .markdown-body ul, .markdown-body ol { margin: 0 0 22px; padding-left: 24px; }
  .markdown-body li { margin: 7px 0; padding-left: 3px; }
  .markdown-body hr { margin: 45px 0; border: 0; border-top: 1px solid var(--line); }
  .markdown-body table { display: block; width: 100%; overflow-x: auto; margin: 25px 0; border-collapse: collapse; font-size: .72rem; }
  .markdown-body th, .markdown-body td { min-width: 120px; padding: 10px 12px; border: 1px solid var(--line); text-align: left; }
  .markdown-body th { color: var(--ink); background: rgba(130,245,178,.06); font: 700 .64rem var(--mono); }
  .markdown-body img { max-height: 620px; margin: 26px auto; object-fit: contain; background: #050a08; border: 1px solid var(--line); border-radius: 9px; }
  .markdown-body .archive-warning { margin: 0 0 34px; padding: 14px 17px; color: #dbc48c; background: rgba(246,201,107,.055); border: 1px solid rgba(246,201,107,.18); border-radius: 8px; font: .62rem/1.55 var(--mono); }
  .reader-loading { display: grid; min-height: 430px; place-content: center; justify-items: center; gap: 17px; color: var(--muted); font: .66rem var(--mono); }
  .reader-loading i { width: 28px; height: 28px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: reader-spin .8s linear infinite; }
  @keyframes reader-spin { to { transform: rotate(360deg); } }

  .reader-dialog[data-reading-theme="light"] {
    --ink: #202822;
    --muted: #53625a;
    --faint: #697870;
    --line: rgba(32,40,34,.16);
    --line-strong: rgba(32,40,34,.3);
    --cyan: #006b78;
    color: var(--ink);
    background: #f8f4eb;
    border-color: rgba(32,40,34,.24);
    color-scheme: light;
  }
  .reader-dialog[data-reading-theme="light"]::backdrop { background: rgba(20,22,20,.62); }
  .reader-dialog[data-reading-theme="light"] .reader-bar { background: #eee8dc; }
  .reader-dialog[data-reading-theme="light"] .reader-sidebar { background: #e9e3d7; }
  .reader-dialog[data-reading-theme="light"] .reader-scroll { background: #fbf8f1; }
  .reader-dialog[data-reading-theme="light"] .markdown-body { color: #334139; }
  .reader-dialog[data-reading-theme="light"] .markdown-body strong { color: #17201c; }
  .reader-dialog[data-reading-theme="light"] .markdown-body code { color: #1d5c43; background: rgba(27,103,72,.07); border-color: rgba(27,103,72,.14); }
  .reader-dialog[data-reading-theme="light"] .markdown-body pre { color: #edf4ef; background: #17201c; border-color: #34423a; }
  .reader-dialog[data-reading-theme="light"] .markdown-body pre code { color: inherit; background: none; border: 0; }
  .reader-dialog[data-reading-theme="light"] .markdown-body blockquote { color: #53625a; background: rgba(170,109,22,.07); }
  .reader-dialog[data-reading-theme="light"] .markdown-body th { background: rgba(27,103,72,.07); }
  .reader-dialog[data-reading-theme="light"] .markdown-body img { background: #eee9df; }
  .reader-dialog[data-reading-theme="light"] .markdown-body .archive-warning { color: #714f17; background: rgba(181,119,26,.08); border-color: rgba(151,96,16,.22); }

  .pdf-dialog {
    width: min(1320px, calc(100vw - 22px));
    height: min(940px, calc(100vh - 22px));
    max-width: none;
    max-height: none;
    overflow: hidden;
    padding: 0;
    color: var(--ink);
    background: #07100e;
    border: 1px solid rgba(110,231,231,.25);
    border-radius: 18px;
    box-shadow: 0 45px 150px rgba(0,0,0,.82), 0 0 60px rgba(110,231,231,.05);
    color-scheme: dark;
  }
  .pdf-dialog::backdrop { background: rgba(1,5,4,.9); backdrop-filter: blur(10px); }
  .pdf-bar { display: flex; min-height: 72px; align-items: center; gap: 16px; padding: 11px 16px 11px 21px; background: linear-gradient(90deg,rgba(8,23,19,.99),rgba(6,16,14,.96)); border-bottom: 1px solid var(--line); }
  .pdf-bar > div:first-child { min-width: 0; margin-right: auto; }
  .pdf-bar strong { display: block; max-width: 470px; overflow: hidden; margin-top: 5px; font-size: .76rem; text-overflow: ellipsis; white-space: nowrap; }
  .pdf-actions { display: flex; align-items: center; gap: 6px; }
  .pdf-actions a, .pdf-actions button { padding: 8px 9px; color: #9db5ab; background: transparent; border: 1px solid var(--line); border-radius: 7px; font: 650 .55rem var(--mono); text-decoration: none; white-space: nowrap; cursor: pointer; }
  .pdf-actions a:hover, .pdf-actions button:hover, .pdf-actions button.active { color: #06100d; background: var(--cyan); border-color: var(--cyan); }
  .pdf-actions button[aria-pressed="true"] { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .pdf-actions .reading-theme-toggle.is-light { color: #17201c; background: #f1e9dc; border-color: #fffaf1; }
  .pdf-close { display: grid; width: 36px; height: 36px; place-items: center; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 50%; font-size: 1.1rem; cursor: pointer; }
  .pdf-stage { position: relative; height: calc(100% - 106px); overflow: hidden; background: #17201d; background-image: linear-gradient(rgba(110,231,231,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(110,231,231,.025) 1px,transparent 1px); background-size: 28px 28px; }
  .pdf-stage::before { position: absolute; inset: 0; content: ""; pointer-events: none; background: radial-gradient(circle at 50% 35%,rgba(110,231,231,.06),transparent 48%); }
  .pdf-stage iframe { position: absolute; inset: 0; width: 100%; height: 100%; background: #252927; border: 0; }
  .pdf-stage iframe[hidden] { display: none; }
  .pdf-loading { position: absolute; inset: 0; z-index: 2; display: grid; place-content: center; justify-items: center; gap: 17px; color: var(--muted); background: rgba(5,13,11,.86); font: .64rem var(--mono); }
  .pdf-loading[hidden] { display: none; }
  .pdf-loading i { position: relative; width: 48px; height: 58px; background: rgba(110,231,231,.07); border: 1px solid rgba(110,231,231,.3); border-radius: 4px; box-shadow: 0 0 24px rgba(110,231,231,.08); }
  .pdf-loading i::before { position: absolute; top: -1px; right: -1px; width: 15px; height: 15px; content: ""; background: #07100e; border-bottom: 1px solid rgba(110,231,231,.3); border-left: 1px solid rgba(110,231,231,.3); }
  .pdf-loading i::after { position: absolute; right: 8px; bottom: 11px; left: 8px; height: 2px; content: ""; background: var(--cyan); box-shadow: 0 -8px rgba(110,231,231,.35),0 -16px rgba(110,231,231,.18); animation: pdf-scan 1.15s ease-in-out infinite alternate; }
  @keyframes pdf-scan { to { transform: translateY(-16px); } }
  .pdf-fallback { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; padding: 30px; text-align: center; }
  .pdf-fallback[hidden] { display: none; }
  .pdf-fallback > span { display: grid; width: 74px; height: 90px; place-items: center; color: #0d1420; background: var(--cyan); clip-path: polygon(0 0,72% 0,100% 22%,100% 100%,0 100%); font: 900 .72rem var(--mono); }
  .pdf-fallback h2 { margin: 22px 0 8px; font-size: 1.25rem; }
  .pdf-fallback p { max-width: 480px; color: var(--muted); font-size: .72rem; line-height: 1.6; }
  .pdf-viewer-note { height: 34px; padding: 9px 20px; color: #60776e; background: #06100d; border-top: 1px solid var(--line); font: .51rem var(--mono); }
  .pdf-viewer-note span { margin-right: 8px; color: var(--cyan); text-transform: uppercase; }

  .pdf-dialog[data-reading-theme="light"] {
    --ink: #202822;
    --muted: #53625a;
    --faint: #697870;
    --line: rgba(32,40,34,.17);
    --line-strong: rgba(32,40,34,.3);
    --cyan: #087584;
    color: var(--ink);
    background: #eee9df;
    border-color: rgba(8,117,132,.32);
    color-scheme: light;
  }
  .pdf-dialog[data-reading-theme="light"]::backdrop { background: rgba(20,22,20,.62); }
  .pdf-dialog[data-reading-theme="light"] .pdf-bar { background: linear-gradient(90deg,#eee8dc,#f7f2e8); }
  .pdf-dialog[data-reading-theme="light"] .pdf-actions a,
  .pdf-dialog[data-reading-theme="light"] .pdf-actions button { color: #40534a; }
  .pdf-dialog[data-reading-theme="light"] .pdf-actions a:hover,
  .pdf-dialog[data-reading-theme="light"] .pdf-actions button:hover,
  .pdf-dialog[data-reading-theme="light"] .pdf-actions button.active { color: #f8ffff; background: #087584; border-color: #087584; }
  .pdf-dialog[data-reading-theme="light"] .pdf-actions .reading-theme-toggle.is-light { color: #17201c; background: #fffaf1; border-color: #a89f90; }
  .pdf-dialog[data-reading-theme="light"] .pdf-stage { background: #d7d3cb; background-image: linear-gradient(rgba(31,52,45,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(31,52,45,.035) 1px,transparent 1px); background-size: 28px 28px; }
  .pdf-dialog[data-reading-theme="light"] .pdf-loading { color: #53625a; background: rgba(238,233,223,.9); }
  .pdf-dialog[data-reading-theme="light"] .pdf-loading i::before { background: #eee9df; }
  .pdf-dialog[data-reading-theme="light"] .pdf-viewer-note { color: #607068; background: #e7e1d6; }
}

@layer views {
  /* Museum — wearing the Signal Observatory theme, so the exhibition rooms read
     as the same instrument as view 03, tuned to a single year. Palette, grid,
     scanlines and the travelling sweep line all come from .signal-observatory;
     the room/plinth/wall layout is unchanged. */
  .museum-map {
    --signal-color: var(--signal);
    position: relative;
    padding: 20px;
    overflow: hidden;
    color: #eaf0ff;
    background-color: #070c15;
    background-image: linear-gradient(rgba(120,153,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(120,153,255,.055) 1px, transparent 1px);
    background-size: 28px 28px;
    border: 1px solid rgba(120,153,255,.18);
    border-radius: 16px;
    box-shadow: 0 30px 90px rgba(0,0,0,.28);
  }
  .museum-map::before { position: absolute; inset: 0; z-index: 0; content: ""; opacity: .12; pointer-events: none; background-image: repeating-linear-gradient(0deg,transparent 0 3px,rgba(210,225,255,.08) 3px 4px); mix-blend-mode: screen; }
  .museum-map > * { position: relative; z-index: 1; }
  .museum-years { display: flex; overflow-x: auto; gap: 7px; padding: 3px 2px 14px; scrollbar-color: color-mix(in srgb,var(--signal-color) 45%,transparent) rgba(120,153,255,.06); scrollbar-width: thin; }
  .room-marquee { position: relative; display: grid; min-height: 235px; place-items: center; overflow: hidden; margin: 5px 0 20px; padding: 40px; background: radial-gradient(circle at 10% 0,color-mix(in srgb,var(--signal-color) 16%,transparent),transparent 34%),radial-gradient(ellipse at 50% 100%,color-mix(in srgb,var(--signal-color) 12%,transparent),transparent 55%),linear-gradient(115deg,#0d1423,#070b13 68%); border: 1px solid rgba(120,153,255,.17); border-radius: 12px; text-align: center; }
  .room-marquee::before { position: absolute; top: 16px; bottom: 16px; left: -3%; width: 1px; content: ""; pointer-events: none; background: linear-gradient(transparent,var(--signal-color),transparent); box-shadow: 0 0 16px var(--signal-color); opacity: .28; animation: signal-sweep 8s linear infinite; }
  .room-marquee::after { position: absolute; top: 0; left: 50%; width: 40%; height: 65%; content: ""; background: linear-gradient(color-mix(in srgb,var(--signal-color) 9%,transparent), transparent); clip-path: polygon(44% 0, 56% 0, 100% 100%, 0 100%); transform: translateX(-50%); }
  .room-marquee > * { position: relative; z-index: 1; }
  .room-number { color: var(--signal-color); font: 300 clamp(4rem, 12vw, 9rem)/.8 var(--mono); letter-spacing: -.09em; text-shadow: 0 0 40px color-mix(in srgb,var(--signal-color) 32%,transparent); }
  .room-marquee p:last-child { margin-top: 24px; color: #8e9aaf; font: .65rem var(--mono); }
  .museum-map .section-head h2 { color: #f3f6ff; }
  .museum-map .section-head p { color: #566379; }
  /* The two base re-skins use :where() so they stay at single-class specificity
     and the shared preliminary and favourite border cues still win; the state
     rules below are deliberately specific enough to beat their shared originals. */
  .museum-map :where(.year-pill) { background: rgba(7,12,21,.86); border-color: rgba(120,153,255,.15); }
  .museum-map :where(.artifact-card) { background: linear-gradient(145deg, rgba(13,20,35,.92), rgba(7,11,19,.92)); border-color: rgba(120,153,255,.15); }
  .museum-map .year-pill:hover { border-color: color-mix(in srgb,var(--signal-color) 45%,transparent); }
  .museum-map .year-pill.active { color: #07101d; background: var(--signal-color); border-color: var(--signal-color); }
  .museum-map .year-pill.preliminary.active small { color: #07101d; background: rgba(7,16,29,.14); border-color: rgba(7,16,29,.24); }
  .winner-plinths { display: grid; grid-template-columns: repeat(5, minmax(140px, 1fr)); gap: 10px; }
  .museum-map .artifact-card.is-read { background: linear-gradient(145deg, rgba(13,20,35,.72), rgba(7,11,19,.76)); }
  .winner-plinths .artifact-card:first-child { grid-column: span 2; min-height: 230px; border-color: rgba(255,180,84,.3); background: radial-gradient(circle at 20% 120%, rgba(255,180,84,.13), transparent 60%), rgba(7,12,21,.94); }
  .nominee-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 9px; }
  .nominee-wall .artifact-card { min-height: 150px; }

  /* Library — a panelled reading room: damask walls, veneered cases, tooled bindings.
     Every pattern layer that crosses a spine is capped at low alpha so the title,
     which is near-black on a bright topic colour, keeps its contrast. */
  .library-hall {
    position: relative;
    padding: 30px 26px 96px;
    overflow: hidden;
    background:
      radial-gradient(125% 52% at 50% -14%, rgba(246,201,107,.11), transparent 62%),
      url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='72' height='72' viewBox='0 0 72 72'%3E%3Cg fill='none' stroke='%23f6c96b' stroke-opacity='.08' stroke-width='1.1'%3E%3Cpath d='M36 6c8.5 9.5 8.5 20.5 0 30-8.5-9.5-8.5-20.5 0-30Z'/%3E%3Cpath d='M36 36c8.5 9.5 8.5 20.5 0 30-8.5-9.5-8.5-20.5 0-30Z'/%3E%3Cpath d='M6 36c9.5-8.5 20.5-8.5 30 0-9.5 8.5-20.5 8.5-30 0Z'/%3E%3Cpath d='M66 36c-9.5-8.5-20.5-8.5-30 0 9.5 8.5 20.5 8.5 30 0Z'/%3E%3Ccircle cx='36' cy='36' r='2.6'/%3E%3C/g%3E%3C/svg%3E"),
      repeating-linear-gradient(90deg, rgba(0,0,0,.3) 0 2px, transparent 2px 12.5%),
      linear-gradient(180deg, #14130c, #0b1512 46%, #080d0b);
    background-size: auto, 72px 72px, auto, auto;
    border: 1px solid rgba(246,201,107,.18);
    border-radius: 20px;
    box-shadow: inset 0 0 90px rgba(0,0,0,.6);
  }
  .library-hall::before {
    position: absolute;
    inset: 0;
    content: "";
    background:
      repeating-linear-gradient(90deg, rgba(0,0,0,.55) 0 3px, rgba(246,201,107,.06) 3px 4px, transparent 4px 9px) left / 14px 100% no-repeat,
      repeating-linear-gradient(90deg, transparent 0 5px, rgba(246,201,107,.06) 5px 6px, rgba(0,0,0,.55) 6px 9px) right / 14px 100% no-repeat,
      radial-gradient(145% 105% at 50% 18%, transparent 52%, rgba(0,0,0,.55));
    pointer-events: none;
  }
  .library-hall::after {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 30px;
    content: "";
    background:
      repeating-linear-gradient(90deg, rgba(0,0,0,.42) 0 1px, transparent 1px 27px),
      linear-gradient(180deg, transparent, rgba(52,34,14,.55));
    pointer-events: none;
  }
  .shelf-section { position: relative; margin-top: 42px; }
  .shelf-section::before {
    position: absolute;
    inset: 25px 0 0;
    content: "";
    background:
      repeating-linear-gradient(90deg, rgba(0,0,0,.22) 0 1px, transparent 1px 6px),
      repeating-linear-gradient(90deg, rgba(246,201,107,.04) 0 1px, transparent 1px 25px),
      linear-gradient(180deg, rgba(30,22,13,.9), rgba(11,17,14,.5));
    border-radius: 3px 3px 0 0;
    box-shadow: inset 0 14px 24px rgba(0,0,0,.6), inset 0 0 0 1px rgba(246,201,107,.06);
    pointer-events: none;
  }
  .shelf-label { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; color: var(--amber); font: .63rem var(--mono); letter-spacing: .1em; text-transform: uppercase; }
  .shelf-label > span:first-child { padding: 2px 9px; background: linear-gradient(180deg, rgba(246,201,107,.16), rgba(246,201,107,.03)); border: 1px solid rgba(246,201,107,.26); border-radius: 2px; box-shadow: inset 0 1px rgba(255,240,205,.22); }
  .book-shelf {
    position: relative;
    z-index: 1;
    display: flex;
    min-height: 178px;
    align-items: end;
    gap: 4px;
    overflow-x: auto;
    padding: 12px 14px 16px;
    border-bottom: 13px solid transparent;
    background:
      repeating-linear-gradient(90deg, rgba(0,0,0,.3) 0 1px, transparent 1px 8px) bottom / 100% 13px no-repeat,
      repeating-linear-gradient(90deg, rgba(255,220,150,.05) 0 2px, transparent 2px 29px) bottom / 100% 13px no-repeat,
      linear-gradient(180deg, rgba(255,240,200,.5) 0 1px, rgba(246,201,107,.2) 1px 2px, #55452b 2px, #33291a 55%, #191308) bottom / 100% 13px no-repeat;
    background-origin: border-box;
    box-shadow: 0 13px 0 #100e09, 0 19px 30px rgba(0,0,0,.55);
    scrollbar-color: rgba(246,201,107,.35) rgba(0,0,0,.35);
    scrollbar-width: thin;
  }
  .book {
    --gilt-hi: rgba(255,248,226,.55);
    --gilt-lo: rgba(84,56,12,.4);
    --grain: repeating-linear-gradient(90deg, rgba(0,0,0,.055) 0 1px, transparent 1px 3px), repeating-linear-gradient(0deg, rgba(0,0,0,.045) 0 1px, transparent 1px 3px);
    --hubs: linear-gradient(180deg, transparent 0 31%, rgba(0,0,0,.1) 31% 32%, rgba(255,255,255,.15) 32% 37%, rgba(0,0,0,.11) 37% 38%, transparent 38% 62%, rgba(0,0,0,.1) 62% 63%, rgba(255,255,255,.15) 63% 68%, rgba(0,0,0,.11) 68% 69%, transparent 69%);
    position: relative;
    width: 40px;
    min-width: 34px;
    height: var(--book-height, 150px);
    padding: 16px 9px 17px;
    overflow: hidden;
    color: #07100d;
    background:
      linear-gradient(var(--gilt-hi) 0 0) 5px 5px / calc(100% - 10px) 1px no-repeat,
      linear-gradient(var(--gilt-hi) 0 0) 5px calc(100% - 5px) / calc(100% - 10px) 1px no-repeat,
      linear-gradient(var(--gilt-hi) 0 0) 5px 5px / 1px calc(100% - 10px) no-repeat,
      linear-gradient(var(--gilt-hi) 0 0) calc(100% - 5px) 5px / 1px calc(100% - 10px) no-repeat,
      linear-gradient(180deg, transparent 0 8px, var(--gilt-lo) 8px 9px, transparent 9px calc(100% - 9px), var(--gilt-lo) calc(100% - 9px) calc(100% - 8px), transparent calc(100% - 8px)),
      var(--hubs),
      var(--grain),
      linear-gradient(90deg, rgba(255,255,255,.3) 0 1px, rgba(255,255,255,.11) 1px 16%, rgba(255,255,255,0) 44%, rgba(0,0,0,.05) 70%, rgba(0,0,0,.2)),
      var(--book-color, #82f5b2);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 3px 6px 6px 3px;
    box-shadow: inset -5px 0 10px rgba(0,0,0,.18), 3px 0 7px rgba(0,0,0,.35);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font: 800 .58rem/1.05 var(--mono);
    text-shadow: 0 1px 0 rgba(255,255,255,.3);
    text-overflow: ellipsis;
    cursor: pointer;
    transition: transform .22s, filter .22s, box-shadow .22s;
  }
  .book:nth-child(3n) { width: 48px; }
  .book:nth-child(4n+2) { --grain: repeating-linear-gradient(90deg, rgba(0,0,0,.08) 0 1px, rgba(255,255,255,.06) 1px 2px, transparent 2px 5px); }
  .book:nth-child(4n+3) { --grain: radial-gradient(circle at 50% 50%, rgba(0,0,0,.09) 0 .8px, transparent 1.4px) 0 0 / 5px 5px, radial-gradient(circle at 50% 50%, rgba(255,255,255,.11) 0 .8px, transparent 1.4px) 2.5px 2.5px / 5px 5px; }
  .book:nth-child(4n) { --grain: repeating-linear-gradient(122deg, rgba(0,0,0,.055) 0 2px, transparent 2px 7px); }
  .book:nth-child(7n) { --hubs: linear-gradient(180deg, transparent 0 24%, rgba(0,0,0,.1) 24% 25%, rgba(255,255,255,.15) 25% 29%, rgba(0,0,0,.11) 29% 30%, transparent 30% 47%, rgba(0,0,0,.1) 47% 48%, rgba(255,255,255,.15) 48% 52%, rgba(0,0,0,.11) 52% 53%, transparent 53% 70%, rgba(0,0,0,.1) 70% 71%, rgba(255,255,255,.15) 71% 75%, rgba(0,0,0,.11) 75% 76%, transparent 76%); }
  .book:nth-child(6n+1) { background-color: color-mix(in srgb, var(--book-color, #82f5b2) 91%, #4a3413); }
  .book:nth-child(6n+4) { background-color: color-mix(in srgb, var(--book-color, #82f5b2) 94%, #fff6e2); }
  .book:nth-child(5n) { transform: rotate(-2deg); transform-origin: bottom; }
  .book:hover, .book:focus-visible { z-index: 3; outline: none; filter: brightness(1.12); transform: translateY(-14px) rotate(0); box-shadow: inset -5px 0 10px rgba(0,0,0,.18), 0 0 0 1px rgba(255,220,150,.6), 0 16px 24px rgba(0,0,0,.5); }
  .book b { position: absolute; right: 2px; bottom: 4px; left: 2px; color: rgba(52,34,7,.8); font-size: .46rem; letter-spacing: -.02em; text-align: center; text-shadow: 0 1px 0 rgba(255,255,255,.35); writing-mode: horizontal-tb; }
  .book.is-read { filter: saturate(.35) brightness(.72); }
  .book.is-read::after { position: absolute; top: 4px; left: 4px; display: grid; width: 12px; height: 11px; place-items: center; content: "✓"; color: #10190f; background: rgba(255,255,255,.42); border: 1px solid rgba(52,34,7,.3); border-radius: 1px; font: 900 .55rem var(--mono); writing-mode: horizontal-tb; }
  .shelf-plate {
    position: absolute;
    top: 100%;
    left: var(--plate-x, 0);
    z-index: 6;
    width: min(360px, 100%);
    margin-top: 17px;
    padding: 9px 13px 10px;
    background: linear-gradient(180deg, rgba(255,243,214,.12), transparent 55%), linear-gradient(180deg, #2b2214, #191309);
    border: 1px solid rgba(246,201,107,.42);
    border-radius: 3px;
    box-shadow: 0 16px 30px rgba(0,0,0,.62), inset 0 1px rgba(255,240,205,.28);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-5px);
    transition: opacity .16s, transform .16s, left .2s;
  }
  .shelf-plate.is-open { opacity: 1; visibility: visible; transform: none; }
  .shelf-plate-notch { position: absolute; top: -5px; left: var(--notch-x, 20px); width: 8px; height: 8px; background: #2b2214; border-top: 1px solid rgba(246,201,107,.42); border-left: 1px solid rgba(246,201,107,.42); transform: translateX(-50%) rotate(45deg); }
  .shelf-plate-title { display: -webkit-box; overflow: hidden; color: #fdf6e6; font: 650 .78rem/1.35 var(--sans); -webkit-line-clamp: 2; line-clamp: 2; -webkit-box-orient: vertical; }
  .shelf-plate-meta { display: block; margin-top: 4px; overflow: hidden; color: var(--amber); font: .57rem var(--mono); letter-spacing: .04em; text-overflow: ellipsis; white-space: nowrap; }
  .book.is-favourite { outline: 2px solid #ffb454; outline-offset: 2px; }
  .book.is-favourite::before { position: absolute; top: 4px; right: 4px; display: grid; width: 12px; height: 11px; place-items: center; content: "★"; color: #432704; background: rgba(255,214,140,.55); border: 1px solid rgba(52,34,7,.32); border-radius: 1px; font: 900 .58rem var(--mono); writing-mode: horizontal-tb; }
  .library-desk { display: grid; grid-template-columns: 1.4fr .8fr; gap: 12px; margin-bottom: 20px; }
  .librarian-note, .checkout-card { padding: 22px; background: #151e18; border: 1px solid rgba(246,201,107,.14); border-radius: 12px; }
  .librarian-note h2 { margin: 5px 0 8px; font-family: Georgia, serif; font-size: 1.4rem; }
  .librarian-note p:last-child, .checkout-card p { color: var(--muted); font-size: .74rem; line-height: 1.6; }
  .checkout-card { background: #d9d0b2; color: #253129; transform: rotate(.8deg); }
  .checkout-card p { color: #536057; }

  /* Favourites */
  .favourites-view { min-height: 560px; }
  .favourites-summary { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-bottom: 20px; padding: clamp(22px,4vw,42px); overflow: hidden; background: radial-gradient(circle at 90% 50%,rgba(255,180,84,.15),transparent 30%),linear-gradient(135deg,rgba(120,153,255,.08),rgba(9,19,17,.9)); border: 1px solid rgba(255,180,84,.22); border-radius: var(--radius); }
  .favourites-summary h2 { margin: 8px 0 10px; font-family: "Iowan Old Style",Georgia,serif; font-size: clamp(1.45rem,3vw,2.7rem); }
  .favourites-summary p:last-child { max-width: 720px; color: var(--muted); font-size: .75rem; line-height: 1.65; }
  .favourites-summary code { color: var(--accent); font: .68rem var(--mono); }
  .favourites-summary > span { flex: 0 0 auto; color: var(--accent); font-size: clamp(4rem,10vw,8rem); line-height: 1; opacity: .82; text-shadow: 0 0 45px rgba(255,180,84,.24); transform: rotate(8deg); }
  .saved-modes { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
  .saved-modes button { padding: 9px 14px; color: var(--muted); background: rgba(20,24,36,.78); border: 1px solid var(--line); border-radius: 3px; font: 650 .62rem var(--mono); cursor: pointer; }
  .saved-modes button:hover { color: var(--ink); border-color: var(--line-strong); }
  .saved-modes button.active { color: var(--accent-ink); background: var(--accent); border-color: var(--accent); }
  .saved-modes button b { margin-left: 5px; font-weight: 800; }
  .favourite-filters { display: grid; gap: 8px; margin-bottom: 20px; }
  .favourite-filters > div { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
  .favourite-filters > div > span { width: 48px; color: var(--faint); font: .55rem var(--mono); text-transform: uppercase; }
  .favourite-filters button { padding: 6px 9px; color: var(--muted); background: rgba(20,24,36,.78); border: 1px solid var(--line); border-radius: 3px; font: .58rem var(--mono); cursor: pointer; }
  .favourite-filters button:hover { color: var(--ink); border-color: var(--topic-color,var(--line-strong)); }
  .favourite-filters button.active { color: #211605; background: var(--topic-color,var(--accent)); border-color: var(--topic-color,var(--accent)); }
  .favourite-filters button b { margin-left: 3px; font-weight: 800; }
  .favourite-grid { display: grid; grid-template-columns: repeat(auto-fill,minmax(225px,1fr)); gap: 12px; }
  .favourite-grid > .empty-state { grid-column: 1/-1; }
  .favourite-entry { position: relative; }
  .saved-filter-note { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 2px; padding-left: 48px; color: var(--faint); font: .58rem var(--mono); }
  .saved-filter-note b { color: var(--ink); font-weight: 800; }
  .saved-filter-note .saved-clear { padding: 5px 8px; color: var(--signal); background: transparent; border: 1px solid var(--line); border-radius: 3px; font: .55rem var(--mono); cursor: pointer; }
  .saved-filter-note .saved-clear:hover { color: var(--ink); border-color: var(--line-strong); }
  .favourite-entry .artifact-card { height: 100%; min-height: 190px; padding-bottom: 50px; }
  .favourite-entry .saved-actions { position: absolute; right: 12px; bottom: 12px; left: 12px; z-index: 4; display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 6px; }
  .favourite-entry .saved-flags { margin-right: auto; color: var(--accent); font-size: .8rem; letter-spacing: .12em; }
  .favourite-entry .remove-favourite { padding: 6px 8px; color: var(--accent); background: rgba(7,15,13,.9); border: 1px solid rgba(255,180,84,.35); border-radius: 3px; font: .52rem var(--mono); cursor: pointer; }
  .favourite-entry .remove-favourite:hover { color: #241604; background: var(--accent); }
  .favourite-entry .card-favourite, .favourite-entry .card-read { display: none; }

  /* Constellation */
  .sky-controls { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
  .constellation-frame {
    position: relative;
    min-height: clamp(620px, 67vw, 780px);
    overflow: hidden;
    background: radial-gradient(circle at 52% 42%, #062019 0, #020d0a 50%, #010504 100%);
    border: 1px solid rgba(130,245,178,.2);
    border-radius: 18px;
    box-shadow: inset 0 0 80px rgba(0,0,0,.66), 0 30px 90px rgba(0,0,0,.28);
    outline: none;
    isolation: isolate;
  }
  .constellation-frame::before {
    position: absolute;
    inset: 0;
    z-index: 2;
    content: "";
    pointer-events: none;
    opacity: .1;
    background: repeating-linear-gradient(0deg, transparent 0 5px, rgba(101,255,179,.03) 5px 6px);
    mix-blend-mode: screen;
  }
  .constellation-frame::after {
    position: absolute;
    inset: 0;
    z-index: 2;
    content: "";
    pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 48%, rgba(0,4,3,.16) 78%, rgba(0,3,2,.68) 120%);
  }
  .constellation-frame:focus-visible { border-color: rgba(130,245,178,.55); box-shadow: 0 0 0 3px rgba(130,245,178,.1), inset 0 0 80px rgba(0,0,0,.66); }
  .constellation-canvas { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; cursor: grab; touch-action: none; }
  .constellation-frame.is-navigating .constellation-canvas, .constellation-frame.is-star-tugging .constellation-canvas { cursor: grabbing; }
  .constellation-frame.has-star-hover:not(.is-navigating):not(.is-star-tugging) .constellation-canvas { cursor: grab; }
  .space-reticle { position: absolute; top: 50%; left: 50%; z-index: 3; width: 32px; height: 32px; opacity: .16; pointer-events: none; transform: translate(-50%,-50%); }
  .space-reticle i { position: absolute; display: block; background: #b7ffcf; box-shadow: 0 0 8px rgba(130,245,178,.6); }
  .space-reticle i:first-child { top: 15px; left: 0; width: 32px; height: 1px; }
  .space-reticle i:last-child { top: 0; left: 15px; width: 1px; height: 32px; }
  .space-coordinates {
    position: absolute;
    top: 18px;
    left: 18px;
    z-index: 4;
    display: grid;
    gap: 5px;
    padding: 11px 13px;
    color: rgba(181,218,200,.48);
    background: rgba(2,9,7,.55);
    border-left: 1px solid rgba(130,245,178,.32);
    font: 600 .52rem var(--mono);
    letter-spacing: .08em;
    pointer-events: none;
    backdrop-filter: blur(8px);
  }
  .space-coordinates b { color: #c9ffe0; font-weight: 700; }
  .space-coordinates .space-winner-key { margin-top: 3px; color: rgba(246,201,107,.62); }
  .space-coordinates .space-winner-key b { margin-right: 3px; color: var(--amber); text-shadow: 0 0 9px rgba(246,201,107,.8); }
  .space-coordinates .space-preliminary-key { margin-top: 3px; color: rgba(255,180,84,.78); }
  .space-coordinates .space-preliminary-key b { margin-right: 3px; color: var(--accent); }
  .space-toolbar { position: absolute; top: 18px; right: 18px; z-index: 5; display: flex; gap: 5px; }
  .space-toolbar button, .space-selection button, .space-zoom button {
    color: #bfdbce;
    background: rgba(3,12,9,.78);
    border: 1px solid rgba(166,225,192,.18);
    border-radius: 5px;
    font: 650 .54rem var(--mono);
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: color .16s ease, background-color .16s ease, border-color .16s ease, box-shadow .16s ease, transform .16s ease;
  }
  .space-toolbar button { padding: 8px 10px; }
  .space-toolbar button:hover, .space-selection button:hover, .space-zoom button:hover { color: #edfff4; border-color: rgba(130,245,178,.5); }
  .space-toolbar button:active, .space-selection button:active, .space-zoom button:active { transform: translateY(1px); }
  .space-toolbar button:focus-visible, .space-selection button:focus-visible, .space-zoom button:focus-visible, .space-zoom-track:focus-visible { outline: 2px solid rgba(184,255,212,.9); outline-offset: 2px; }
  .space-toolbar button[aria-pressed="true"] { color: #06100d; background: var(--mint); border-color: var(--mint); }
  .space-toolbar button:disabled { opacity: .36; cursor: not-allowed; }
  .space-toolbar kbd { margin-left: 4px; color: currentColor; background: transparent; border: 0; }
  .space-zoom {
    position: absolute;
    top: 50%;
    right: 18px;
    z-index: 5;
    display: grid;
    justify-items: center;
    gap: 8px;
    padding: 8px 6px;
    background: rgba(2,9,7,.58);
    border: 1px solid rgba(166,225,192,.12);
    border-radius: 8px;
    backdrop-filter: blur(8px);
    transform: translateY(-50%);
  }
  .space-zoom::before { content: "ZOOM"; color: rgba(181,218,200,.38); font: 600 .43rem var(--mono); letter-spacing: .13em; writing-mode: vertical-rl; }
  .space-zoom button { width: 28px; height: 28px; padding: 0; color: var(--mint); font-size: .9rem; }
  .space-zoom-track { position: relative; width: 28px; height: 130px; cursor: ns-resize; touch-action: none; }
  .space-zoom-track::before { position: absolute; top: 3px; bottom: 3px; left: 12px; width: 4px; content: ""; background: linear-gradient(var(--mint) 0 var(--zoom-position, 70%), rgba(173,222,194,.15) var(--zoom-position, 70%) 100%); border: 1px solid rgba(208,255,226,.16); border-radius: 10px; box-shadow: inset 0 0 4px #000; }
  .space-zoom-track i { position: absolute; top: var(--zoom-position, 70%); left: 50%; width: 16px; height: 8px; pointer-events: none; background: #b7ffd3; border: 1px solid #effff5; border-radius: 4px; box-shadow: 0 0 12px rgba(130,245,178,.72); transform: translate(-50%,-50%); }
  .space-zoom-track:hover i, .space-zoom-track.is-active i, .space-zoom-track:focus-visible i { width: 20px; background: #fff; }
  .space-navigator {
    position: absolute;
    bottom: 58px;
    left: 18px;
    z-index: 6;
    display: grid;
    width: 184px;
    justify-items: center;
    color: rgba(188,231,207,.62);
    font-family: var(--mono);
    user-select: none;
  }
  .space-nav-title { margin-bottom: 6px; color: rgba(198,255,221,.62); font: 700 .48rem var(--mono); letter-spacing: .2em; text-shadow: 0 0 12px rgba(130,245,178,.4); }
  .space-nav-dial {
    position: relative;
    width: 166px;
    height: 166px;
    background:
      radial-gradient(circle, rgba(8,31,23,.92) 0 25%, transparent 26%),
      repeating-conic-gradient(from 22.5deg, rgba(130,245,178,.11) 0 1deg, transparent 1deg 45deg),
      radial-gradient(circle, rgba(3,14,10,.88) 0 57%, rgba(39,105,76,.26) 58% 59%, rgba(2,9,7,.8) 60%);
    border: 1px solid rgba(130,245,178,.3);
    border-radius: 50%;
    box-shadow: inset 0 0 28px rgba(0,0,0,.75), 0 12px 35px rgba(0,0,0,.45), 0 0 22px rgba(72,196,127,.08);
    backdrop-filter: blur(8px);
  }
  .space-nav-dial::before, .space-nav-dial::after { position: absolute; inset: 9px; content: ""; pointer-events: none; border: 1px dashed rgba(130,245,178,.13); border-radius: 50%; }
  .space-nav-dial::after { inset: 24px; border-style: solid; border-color: rgba(130,245,178,.08); }
  .space-nav-dial > button, .nav-thrust button {
    position: absolute;
    z-index: 3;
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    padding: 0;
    color: #aeeac6;
    background: linear-gradient(145deg, rgba(13,40,30,.95), rgba(2,11,8,.96));
    border: 1px solid rgba(130,245,178,.24);
    border-radius: 9px;
    box-shadow: inset 0 0 12px rgba(130,245,178,.035), 0 4px 10px rgba(0,0,0,.36);
    font: 700 .77rem var(--mono);
    cursor: pointer;
    touch-action: none;
  }
  .space-nav-dial > button:hover, .space-nav-dial > button.is-active, .nav-thrust button:hover, .nav-thrust button.is-active { color: #04100c; background: var(--mint); border-color: #d8ffe7; box-shadow: 0 0 20px rgba(130,245,178,.42); }
  .space-nav-dial button small { display: block; margin-top: -8px; font: 600 .33rem var(--mono); letter-spacing: .08em; }
  .space-nav-dial .nav-up { top: 8px; left: 66px; }
  .space-nav-dial .nav-down { bottom: 8px; left: 66px; }
  .space-nav-dial .nav-left { top: 66px; left: 8px; }
  .space-nav-dial .nav-right { top: 66px; right: 8px; }
  .space-nav-dial .nav-turn-left, .space-nav-dial .nav-turn-right { top: 27px; width: 28px; height: 28px; color: var(--cyan); border-radius: 50%; font-size: .72rem; }
  .space-nav-dial .nav-turn-left { left: 27px; }
  .space-nav-dial .nav-turn-right { right: 27px; }
  .nav-thrust { position: absolute; top: 52px; left: 54px; z-index: 4; width: 58px; height: 62px; padding: 3px; background: rgba(1,8,6,.82); border: 1px solid rgba(130,245,178,.2); border-radius: 16px; box-shadow: 0 0 16px rgba(130,245,178,.08); }
  .nav-thrust span { position: absolute; inset: 50% 0 auto; color: rgba(196,255,220,.58); font: 700 .37rem var(--mono); letter-spacing: .14em; text-align: center; transform: translateY(-50%); }
  .nav-thrust button { left: 17px; width: 23px; height: 23px; border: 0; border-radius: 7px; font-size: .52rem; }
  .nav-thrust button:first-child { top: 3px; }
  .nav-thrust button:last-child { top: auto; bottom: 3px; }
  .nav-sweep { position: absolute; inset: 16px; z-index: 1; pointer-events: none; border-radius: 50%; background: conic-gradient(from 0deg, transparent 0 86%, rgba(130,245,178,.14) 94%, transparent); animation: nav-scan 9s linear infinite; }
  .space-nav-hint { margin-top: 6px; color: rgba(181,218,200,.33); font: .4rem var(--mono); letter-spacing: .14em; }
  @keyframes nav-scan { to { transform: rotate(1turn); } }
  .space-selection {
    position: absolute;
    bottom: 258px;
    left: 18px;
    z-index: 6;
    width: min(365px, calc(100% - 110px));
    padding: 16px;
    background: linear-gradient(135deg, rgba(5,18,14,.95), rgba(2,8,6,.82));
    border: 1px solid rgba(130,245,178,.28);
    border-radius: 9px;
    box-shadow: 0 15px 45px rgba(0,0,0,.5);
    backdrop-filter: blur(13px);
  }
  .space-selection[hidden] { display: none; }
  .space-selection::before { position: absolute; top: -1px; left: 16px; width: 44px; height: 1px; content: ""; background: var(--mint); box-shadow: 0 0 13px var(--mint); }
  .space-selection h3 { margin: 7px 0 5px; color: #edfff4; font-size: .78rem; line-height: 1.35; }
  .space-selection > p:not(.eyebrow) { color: #88a298; font: .57rem/1.45 var(--mono); }
  .space-selection > div { display: flex; gap: 6px; margin-top: 13px; }
  .space-selection button { padding: 8px 10px; }
  .space-selection button:first-child { color: #06100d; background: var(--mint); border-color: var(--mint); }
  .space-selection button[aria-pressed="true"] { color: #261704; background: var(--accent); border-color: var(--accent); }
  .sky-legend { position: absolute; right: 64px; bottom: 16px; z-index: 5; display: flex; flex-wrap: wrap; max-width: 470px; justify-content: end; gap: 5px; }
  .sky-legend button { padding: 5px 7px; color: var(--topic-color); background: rgba(2,8,6,.78); border: 1px solid color-mix(in srgb, var(--topic-color) 25%, transparent); border-radius: 4px; font: .52rem var(--mono); cursor: pointer; backdrop-filter: blur(8px); }
  .sky-legend button:hover, .sky-legend button.active { color: #04100c; background: var(--topic-color); border-color: var(--topic-color); box-shadow: 0 0 14px color-mix(in srgb, var(--topic-color) 28%, transparent); }
  .star-rank-filter { position: absolute; right: 64px; bottom: 62px; z-index: 6; display: flex; align-items: center; gap: 4px; padding: 5px; background: rgba(2,8,6,.86); border: 1px solid rgba(246,201,107,.2); border-radius: 7px; box-shadow: 0 9px 30px rgba(0,0,0,.36); backdrop-filter: blur(10px); }
  .star-rank-filter > span:first-child { padding: 0 5px; color: rgba(181,218,200,.46); font: 700 .45rem var(--mono); letter-spacing: .12em; }
  .star-rank-filter button { padding: 6px 8px; color: #9ab5a7; background: transparent; border: 1px solid transparent; border-radius: 4px; font: 700 .5rem var(--mono); cursor: pointer; }
  .star-rank-filter button b { margin-left: 3px; color: currentColor; font-size: .46rem; }
  .star-rank-filter button:not(:disabled):hover, .star-rank-filter button.active { color: #edfff4; background: rgba(130,245,178,.08); border-color: rgba(130,245,178,.22); }
  .star-rank-filter button:disabled { opacity: .32; cursor: not-allowed; }
  .star-rank-filter .top-ten { color: #f6d884; }
  .star-rank-filter .top-ten i { color: #fff4bf; font-style: normal; text-shadow: 0 0 8px #f6c96b, 0 0 18px rgba(246,201,107,.75); }
  .star-rank-filter .top-ten:not(:disabled):hover, .star-rank-filter .top-ten.active { color: #1b1304; background: #ffe39a; border-color: #fff3c5; box-shadow: 0 0 14px rgba(246,201,107,.55); }
  .star-rank-filter.preliminary-filter { border-color: rgba(255,180,84,.35); }
  .star-rank-filter.preliminary-filter > span:first-child { color: var(--accent); }
  .star-rank-filter.preliminary-filter button.active { color: var(--accent-ink); background: var(--accent); border-color: #ffd49d; }
  .short-label { display: none; }
  .space-help { position: absolute; bottom: 108px; left: 218px; z-index: 4; display: flex; flex-wrap: wrap; gap: 7px 10px; max-width: 430px; color: rgba(181,218,200,.38); font: .48rem var(--mono); pointer-events: none; }
  .space-help span { white-space: nowrap; }
  .space-help kbd { margin-right: 3px; color: rgba(210,255,228,.72); background: rgba(2,8,6,.65); border-color: rgba(130,245,178,.14); }

  /* Castle */
  .castle-shell {
    position: relative;
    min-height: clamp(560px, 66vw, 760px);
    overflow: hidden;
    background: #050302;
    border: 1px solid rgba(246, 201, 107, .35);
    border-radius: 18px;
    box-shadow: 0 34px 100px rgba(0, 0, 0, .46), inset 0 0 0 5px #17100a, inset 0 0 0 6px rgba(246, 201, 107, .15);
    isolation: isolate;
  }
  .castle-shell::before {
    position: absolute;
    inset: 0;
    z-index: 3;
    content: "";
    pointer-events: none;
    background: repeating-linear-gradient(0deg, transparent 0 3px, rgba(0,0,0,.06) 3px 4px);
    mix-blend-mode: multiply;
  }
  .castle-viewport { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; }
  .castle-vignette {
    position: absolute;
    inset: 0;
    z-index: 4;
    pointer-events: none;
    background: radial-gradient(ellipse at center, transparent 35%, rgba(2, 1, 0, .2) 72%, rgba(2, 1, 0, .72) 115%);
  }
  .castle-vignette::after {
    position: absolute;
    inset: 9px;
    content: "";
    border: 1px solid rgba(246, 201, 107, .09);
    border-radius: 11px;
  }
  .castle-hud {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 8;
    display: flex;
    align-items: start;
    justify-content: space-between;
    padding: 26px 28px;
    pointer-events: none;
    background: linear-gradient(rgba(2,1,0,.6), transparent);
  }
  .castle-room p, .castle-progress small { color: rgba(235,219,181,.55); font: 600 .54rem var(--mono); letter-spacing: .14em; text-transform: uppercase; }
  .castle-room strong { display: block; margin-top: 6px; color: #fff2cf; font-family: Georgia, "Times New Roman", serif; font-size: clamp(.9rem, 1.5vw, 1.18rem); font-weight: 500; letter-spacing: .02em; text-shadow: 0 2px 10px #000; }
  .castle-progress { padding-left: 22px; border-left: 1px solid rgba(246,201,107,.3); text-align: right; }
  .castle-progress span { display: block; color: #f6c96b; font: 1rem var(--mono); text-shadow: 0 0 12px rgba(255,160,50,.7); }
  .castle-progress b { font-size: 1.4rem; }
  .castle-level-tools { display: flex; align-items: center; gap: 7px; margin-inline: auto 24px; pointer-events: auto; }
  .castle-level-tools label { display: flex; align-items: center; gap: 7px; padding: 5px 6px 5px 10px; color: rgba(235,219,181,.56); background: rgba(9,5,2,.68); border: 1px solid rgba(246,201,107,.19); border-radius: 6px; font: 700 .5rem var(--mono); letter-spacing: .1em; text-transform: uppercase; }
  .castle-level-tools select { padding: 5px 22px 5px 7px; color: #2a1705; background: var(--amber); border: 0; border-radius: 4px; font: 800 .58rem var(--mono); cursor: pointer; }
  .castle-level-tools button { padding: 9px 10px; color: #d8c9a9; background: rgba(9,5,2,.68); border: 1px solid rgba(246,201,107,.19); border-radius: 6px; font: 650 .54rem var(--mono); cursor: pointer; }
  .castle-level-tools button:hover { color: #fff0c8; border-color: rgba(246,201,107,.42); }
  .castle-level-tools kbd { margin-left: 4px; color: var(--amber); background: transparent; }
  .castle-level-tools small { position: absolute; top: 67px; color: rgba(235,219,181,.38); font: .48rem var(--mono); }
  .castle-crosshair { position: absolute; top: 50%; left: 50%; z-index: 7; width: 18px; height: 18px; pointer-events: none; transform: translate(-50%,-50%); filter: drop-shadow(0 1px 2px #000); }
  .castle-crosshair i { position: absolute; display: block; background: rgba(255,244,212,.72); }
  .castle-crosshair i:first-child { top: 8px; left: 1px; width: 16px; height: 1px; }
  .castle-crosshair i:last-child { top: 1px; left: 8px; width: 1px; height: 16px; }
  .castle-prompt {
    position: absolute;
    bottom: 82px;
    left: 50%;
    z-index: 9;
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 9px 13px 9px 9px;
    color: #fff4d6;
    background: rgba(12,7,3,.82);
    border: 1px solid rgba(246,201,107,.3);
    border-radius: 7px;
    font: .62rem var(--mono);
    transform: translateX(-50%);
    backdrop-filter: blur(8px);
  }
  .castle-prompt[hidden] { display: none; }
  .castle-objective {
    position: absolute;
    right: 18px;
    bottom: 58px;
    z-index: 9;
    display: grid;
    grid-template-columns: 42px minmax(0,1fr);
    width: min(235px,calc(100% - 36px));
    align-items: center;
    gap: 10px;
    padding: 10px;
    color: #d8ccb1;
    background: linear-gradient(135deg,rgba(17,10,5,.88),rgba(5,3,2,.72));
    border: 1px solid color-mix(in srgb,var(--objective-color,#f6c96b) 32%,transparent);
    border-radius: 8px;
    box-shadow: 0 12px 32px rgba(0,0,0,.42),inset 0 0 18px rgba(246,201,107,.025);
    text-align: left;
    cursor: pointer;
    backdrop-filter: blur(8px);
  }
  .castle-objective:hover { border-color: color-mix(in srgb,var(--objective-color,#f6c96b) 62%,transparent); transform: translateY(-1px); }
  .castle-objective > i { display: grid; width: 38px; height: 38px; place-items: center; color: var(--objective-color,#f6c96b); background: rgba(0,0,0,.25); border: 1px solid currentColor; border-radius: 50%; box-shadow: 0 0 14px color-mix(in srgb,var(--objective-color,#f6c96b) 28%,transparent); font: normal 1rem var(--mono); transition: transform .16s linear; }
  .castle-objective span { min-width: 0; }
  .castle-objective small, .castle-objective em { display: block; color: rgba(235,219,181,.45); font: 600 .44rem/1.35 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
  .castle-objective strong { display: block; overflow: hidden; margin: 3px 0; color: #fff0c8; font: 700 .62rem var(--mono); text-overflow: ellipsis; white-space: nowrap; }
  .castle-objective em { overflow: hidden; font-size: .41rem; font-style: normal; text-overflow: ellipsis; white-space: nowrap; }
  .castle-objective.complete { --objective-color: #82f5b2; }
  .castle-directory {
    position: absolute;
    inset: 78px max(28px,8%) 62px;
    z-index: 13;
    overflow: auto;
    padding: clamp(20px,4vw,38px);
    color: #eadfc8;
    background: radial-gradient(circle at 50% 0, rgba(246,201,107,.09), transparent 44%), rgba(8,5,3,.96);
    border: 1px solid rgba(246,201,107,.38);
    border-radius: 12px;
    box-shadow: 0 30px 90px rgba(0,0,0,.72), inset 0 0 0 5px rgba(246,201,107,.025);
    backdrop-filter: blur(12px);
  }
  .castle-directory[hidden] { display: none; }
  .castle-directory > header { display: flex; align-items: start; justify-content: space-between; gap: 20px; }
  .castle-directory h2 { margin-top: 6px; color: #fff0c8; font-family: Georgia,serif; font-size: clamp(1.8rem,4vw,3.2rem); font-weight: 500; letter-spacing: -.045em; }
  .castle-directory > header button { width: 36px; height: 36px; color: #c9b993; background: transparent; border: 1px solid rgba(246,201,107,.2); border-radius: 50%; font-size: 1.1rem; cursor: pointer; }
  .castle-directory > p { max-width: 690px; margin: 12px 0 22px; color: #988d76; font-size: .68rem; line-height: 1.6; }
  .directory-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 8px; }
  .directory-grid button { position: relative; min-height: 92px; overflow: hidden; padding: 16px; color: #e9ddc3; background: linear-gradient(135deg, color-mix(in srgb,var(--room-color) 10%,#100b07),#0b0704); border: 1px solid color-mix(in srgb,var(--room-color) 30%,transparent); border-radius: 7px; text-align: left; cursor: pointer; transition: .2s; }
  .directory-grid button:hover { z-index: 1; border-color: var(--room-color); transform: translateY(-2px); box-shadow: 0 12px 35px rgba(0,0,0,.35); }
  .directory-grid i { position: absolute; top: 0; right: 0; width: 55px; height: 55px; background: var(--room-color); opacity: .08; clip-path: polygon(100% 0,0 0,100% 100%); }
  .directory-grid span { display: block; margin-bottom: 11px; color: color-mix(in srgb,var(--room-color) 75%,#fff); font-family: Georgia,serif; font-size: 1rem; }
  .directory-grid small { color: #776d5b; font: .5rem var(--mono); }
  .castle-directory footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; padding-top: 16px; color: #746a58; border-top: 1px solid rgba(246,201,107,.12); font: .52rem var(--mono); }
  .castle-directory footer button { padding: 7px 9px; color: #d99e8e; background: transparent; border: 1px solid rgba(255,142,115,.24); border-radius: 5px; font: .5rem var(--mono); cursor: pointer; }
  .castle-prompt kbd { color: #2a1705; background: var(--amber); border: 0; box-shadow: 0 0 12px rgba(246,201,107,.3); }
  .castle-controls {
    position: absolute;
    right: 20px;
    bottom: 19px;
    z-index: 8;
    display: flex;
    gap: 13px;
    color: rgba(235,219,181,.55);
    font: .52rem var(--mono);
    pointer-events: none;
  }
  .castle-controls kbd { margin-right: 3px; color: #d8c18a; background: rgba(5,3,2,.62); border-color: rgba(246,201,107,.2); }
  .castle-minimap {
    position: absolute;
    bottom: 18px;
    left: 18px;
    z-index: 8;
    width: 154px;
    height: 154px;
    padding: 5px;
    background: rgba(7,4,2,.72);
    border: 1px solid rgba(246,201,107,.28);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,.4);
    backdrop-filter: blur(8px);
    transition: opacity .2s, transform .2s;
  }
  .castle-minimap.map-hidden { opacity: 0; transform: translateY(12px); pointer-events: none; }
  .castle-start {
    position: absolute;
    inset: 0;
    z-index: 14;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 34px;
    background:
      linear-gradient(90deg, rgba(0,0,0,.88), rgba(4,2,1,.36) 48%, rgba(0,0,0,.88)),
      radial-gradient(circle at 50% 38%, rgba(255,135,35,.18), transparent 34%),
      rgba(5,3,2,.63);
    text-align: center;
    backdrop-filter: blur(2px);
    transition: opacity .55s ease, visibility .55s ease;
  }
  .castle-start::before, .castle-start::after {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 22%;
    content: "";
    opacity: .46;
    background: repeating-linear-gradient(90deg, #18100a 0 18px, #24160c 18px 20px, #0c0805 20px 22px);
    border-inline: 1px solid rgba(246,201,107,.14);
  }
  .castle-start::before { left: 0; }
  .castle-start::after { right: 0; }
  .castle-start.entered { opacity: 0; visibility: hidden; }
  .castle-start > * { position: relative; z-index: 2; }
  .castle-start h2 { margin: 11px 0 18px; color: #fff0c8; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.7rem, 7vw, 6.7rem); font-weight: 500; line-height: .77; letter-spacing: -.065em; text-shadow: 0 5px 0 #2f1707, 0 12px 45px rgba(255,104,18,.35); }
  .castle-start > p:not(.eyebrow) { max-width: 590px; color: #c8baa0; font-size: clamp(.72rem, 1.2vw, .88rem); line-height: 1.7; }
  .castle-start button { display: flex; align-items: center; gap: 25px; margin: 26px 0 14px; padding: 13px 14px 13px 19px; color: #271305; background: linear-gradient(#ffe09b,#dba74c); border: 1px solid #ffe9b9; border-radius: 4px; box-shadow: 0 5px 0 #704515, 0 13px 35px rgba(255,143,34,.18); font: 800 .66rem var(--mono); text-transform: uppercase; cursor: pointer; }
  .castle-start button:hover { filter: brightness(1.1); transform: translateY(-1px); }
  .castle-start button span { font-size: 1rem; }
  .castle-start small { color: rgba(226,210,177,.44); font: .55rem var(--mono); }
  .castle-crest { display: grid; width: 58px; height: 66px; place-items: center; color: #2b1607; background: linear-gradient(135deg,#fff0b0,#ad7225); clip-path: polygon(50% 0, 92% 17%, 85% 73%, 50% 100%, 15% 73%, 8% 17%); filter: drop-shadow(0 7px 13px rgba(0,0,0,.6)); }
  .castle-crest::before { position: absolute; inset: 7px; content: ""; border: 1px solid rgba(61,32,8,.55); clip-path: inherit; }
  .castle-crest span { position: relative; z-index: 1; font: 950 .72rem var(--mono); }
  .castle-mobile-controls { display: none; }
  .castle-below { display: grid; grid-template-columns: 190px 190px 1fr; gap: 1px; margin-top: 12px; overflow: hidden; background: var(--line); border: 1px solid var(--line); border-radius: 12px; }
  .castle-below > * { padding: 19px; background: var(--panel); }
  .castle-below div strong { display: block; margin: 3px 0; color: var(--amber); font: 300 1.6rem var(--mono); letter-spacing: -.07em; }
  .castle-below div span { color: var(--faint); font: .56rem var(--mono); }
  .castle-below > p { color: var(--muted); font-size: .68rem; line-height: 1.65; }

  /* Signal Observatory — longitudinal trend mode. */
  .signal-observatory { --signal-color: var(--signal); position: relative; overflow: hidden; color: #eaf0ff; background: #080d17; border: 1px solid rgba(120,153,255,.18); border-radius: 16px; box-shadow: 0 30px 90px rgba(0,0,0,.28); }
  .signal-observatory::before { position: absolute; inset: 0; z-index: 0; content: ""; opacity: .12; pointer-events: none; background-image: repeating-linear-gradient(0deg,transparent 0 3px,rgba(210,225,255,.08) 3px 4px); mix-blend-mode: screen; }
  .signal-observatory > * { position: relative; z-index: 1; }
  .signal-console { display: grid; grid-template-columns: 82px minmax(0,1fr) minmax(250px,360px); align-items: center; gap: clamp(18px,3vw,42px); padding: clamp(24px,4vw,44px); background: radial-gradient(circle at 10% 0,color-mix(in srgb,var(--signal-color) 16%,transparent),transparent 34%),linear-gradient(115deg,#0d1423,#070b13 68%); border-bottom: 1px solid rgba(120,153,255,.17); }
  .signal-console-mark { position: relative; display: grid; width: 72px; height: 72px; place-items: center; color: var(--signal-color); background: radial-gradient(circle,rgba(255,255,255,.07),transparent 58%); border: 1px solid color-mix(in srgb,var(--signal-color) 44%,transparent); border-radius: 50%; box-shadow: 0 0 32px color-mix(in srgb,var(--signal-color) 13%,transparent),inset 0 0 25px rgba(0,0,0,.5); }
  .signal-console-mark::before, .signal-console-mark::after { position: absolute; inset: 7px; content: ""; border: 1px dashed color-mix(in srgb,var(--signal-color) 35%,transparent); border-radius: 50%; }
  .signal-console-mark::after { inset: -7px 34px; border: 0; border-left: 1px solid color-mix(in srgb,var(--signal-color) 32%,transparent); border-radius: 0; transform: rotate(43deg); }
  .signal-console-mark span { font: 750 .72rem var(--mono); letter-spacing: .08em; }
  .signal-console-mark i { position: absolute; right: 10px; bottom: 13px; width: 5px; height: 5px; background: var(--accent); border-radius: 50%; box-shadow: 0 0 9px var(--accent); }
  .signal-console h2 { margin: 8px 0 10px; font: 500 clamp(1.55rem,3vw,2.8rem)/1 Georgia,serif; letter-spacing: -.045em; }
  .signal-console > div:nth-child(2) > p:last-child { max-width: 650px; color: #8e9aaf; font-size: .72rem; line-height: 1.65; }
  .signal-console > dl { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1px; overflow: hidden; background: rgba(120,153,255,.15); border: 1px solid rgba(120,153,255,.15); border-radius: 8px; }
  .signal-console > dl div { min-width: 0; padding: 12px; background: rgba(7,12,21,.92); }
  .signal-console dt { margin-bottom: 5px; color: #59677f; font: .48rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
  .signal-console dd { overflow: hidden; color: #dfe8fb; font: .58rem var(--mono); text-overflow: ellipsis; white-space: nowrap; }
  .signal-tuner { display: flex; gap: 6px; overflow-x: auto; padding: 13px clamp(18px,3vw,35px); background: rgba(4,8,15,.94); border-bottom: 1px solid rgba(120,153,255,.13); scrollbar-width: thin; }
  .signal-tuner button { display: grid; min-width: 96px; grid-template-columns: 7px 1fr; align-items: center; gap: 2px 8px; padding: 8px 10px; color: #76839a; background: transparent; border: 1px solid rgba(120,153,255,.11); border-radius: 5px; font: .54rem var(--mono); text-align: left; cursor: pointer; }
  .signal-tuner button i { grid-row: span 2; width: 5px; height: 5px; background: var(--topic-color); border-radius: 50%; opacity: .5; }
  .signal-tuner button b { color: #566379; font-size: .48rem; font-weight: 500; }
  .signal-tuner button:hover { color: #e8efff; border-color: color-mix(in srgb,var(--topic-color) 45%,transparent); }
  .signal-tuner button.active { color: #f8fbff; background: color-mix(in srgb,var(--topic-color) 11%,transparent); border-color: color-mix(in srgb,var(--topic-color) 55%,transparent); box-shadow: inset 0 0 18px color-mix(in srgb,var(--topic-color) 6%,transparent); }
  .signal-tuner button.active i { opacity: 1; box-shadow: 0 0 10px var(--topic-color); }
  .signal-tuner button.active b { color: var(--topic-color); }
  .signal-chart { position: relative; overflow: hidden; background-color: #070c15; background-image: linear-gradient(rgba(120,153,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(120,153,255,.055) 1px,transparent 1px); background-size: 28px 28px; border-bottom: 1px solid rgba(120,153,255,.16); }
  .signal-chart::after { position: absolute; top: 54px; bottom: 29px; left: -3%; width: 1px; content: ""; pointer-events: none; background: linear-gradient(transparent,var(--signal-color),transparent); box-shadow: 0 0 16px var(--signal-color); opacity: .28; animation: signal-sweep 8s linear infinite; }
  @keyframes signal-sweep { to { left: 103%; } }
  .signal-chart > header { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 15px clamp(18px,3vw,35px); background: rgba(5,9,16,.8); border-bottom: 1px solid rgba(120,153,255,.12); }
  .signal-chart > header > div { display: flex; align-items: center; gap: 16px; }
  .signal-chart > header strong { font: 650 .66rem var(--mono); }
  .signal-chart > header p { color: #566379; font: .52rem var(--mono); }
  .signal-live { display: flex; align-items: center; gap: 7px; color: #65738b; font: .48rem var(--mono); letter-spacing: .07em; text-transform: uppercase; }
  .signal-live i { width: 5px; height: 5px; background: var(--mint); border-radius: 50%; box-shadow: 0 0 8px var(--mint); }
  .signal-chart-scroll { overflow-x: auto; scrollbar-color: color-mix(in srgb,var(--signal-color) 45%,transparent) rgba(120,153,255,.06); scrollbar-width: thin; }
  .signal-chart-canvas { position: relative; height: 282px; min-width: 100%; }
  .signal-chart-canvas svg { position: absolute; inset: 35px 0 50px; width: 100%; height: calc(100% - 85px); overflow: visible; pointer-events: none; }
  .signal-chart-canvas polyline { fill: none; stroke: url(#signal-wave-gradient); stroke-width: 2; filter: drop-shadow(0 0 5px color-mix(in srgb,var(--signal-color) 62%,transparent)); }
  .signal-year-columns { position: absolute; inset: 0; display: grid; }
  .signal-year-columns button { position: relative; display: grid; min-width: 0; grid-template-rows: auto 1fr auto auto; justify-items: center; padding: 15px 3px 12px; color: #68758a; background: transparent; border: 0; border-left: 1px solid rgba(120,153,255,.075); font-family: var(--mono); cursor: pointer; }
  .signal-year-columns button:last-child { border-right: 1px solid rgba(120,153,255,.075); }
  .signal-year-columns button:hover { color: #f2f6ff; background: linear-gradient(transparent,color-mix(in srgb,var(--signal-color) 7%,transparent)); }
  .signal-year-columns button.active { color: #fff; background: linear-gradient(transparent,color-mix(in srgb,var(--signal-color) 12%,transparent)); box-shadow: inset 0 -2px var(--signal-color); }
  .signal-year-columns button.active::after { position: absolute; top: 37px; bottom: 40px; width: 1px; content: ""; background: linear-gradient(var(--signal-color),transparent); box-shadow: 0 0 10px var(--signal-color); opacity: .45; }
  .signal-year-columns button > span { font-size: .5rem; letter-spacing: .04em; }
  .signal-year-columns button > i { position: relative; align-self: end; width: 5px; height: calc(8px + var(--signal-level) * 95px); margin-bottom: 7px; background: linear-gradient(transparent,color-mix(in srgb,var(--signal-color) 52%,transparent)); border-radius: 5px 5px 0 0; }
  .signal-year-columns button > i b { position: absolute; top: -3px; left: -2px; width: 9px; height: 9px; background: var(--signal-color); border: 2px solid #080d17; border-radius: 50%; box-shadow: 0 0 9px var(--signal-color); }
  .signal-year-columns button > strong { color: #cad4e8; font-size: .64rem; font-weight: 600; }
  .signal-year-columns button > small { margin-top: 3px; color: var(--accent); font-size: .36rem; letter-spacing: .08em; }
  .signal-year-columns button.preliminary { border-inline-style: dashed; }
  .signal-chart > footer { display: flex; align-items: center; gap: 10px; padding: 8px clamp(18px,3vw,35px); color: #4d5a70; background: rgba(5,9,16,.9); border-top: 1px solid rgba(120,153,255,.1); font: .43rem var(--mono); letter-spacing: .08em; }
  .signal-chart > footer i { width: 90px; height: 2px; background: linear-gradient(90deg,rgba(120,153,255,.14),var(--signal-color)); }
  .signal-focus { padding: clamp(20px,3vw,35px); background: radial-gradient(circle at 0 100%,color-mix(in srgb,var(--signal-color) 8%,transparent),transparent 28%),#090e18; }
  .signal-focus .preliminary-notice { margin-bottom: 15px; }
  .signal-focus-grid { display: grid; grid-template-columns: minmax(260px,330px) minmax(0,1fr); gap: 14px; }
  .signal-readout, .signal-findings { overflow: hidden; background: rgba(7,12,21,.82); border: 1px solid rgba(120,153,255,.15); border-radius: 10px; }
  .signal-readout { padding: 24px; }
  .signal-lock { display: flex; align-items: center; gap: 7px; color: #66738a; font: .48rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
  .signal-lock i { width: 6px; height: 6px; background: var(--signal-color); border-radius: 50%; box-shadow: 0 0 9px var(--signal-color); }
  .signal-readout > strong { display: block; margin-top: 15px; color: #f3f6ff; font: 300 clamp(2.4rem,5vw,4rem)/.9 var(--mono); letter-spacing: -.09em; }
  .signal-readout > span { display: block; margin: 10px 0 18px; color: var(--signal-color); font: .57rem var(--mono); }
  .signal-readout > dl { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; margin-bottom: 22px; overflow: hidden; background: rgba(120,153,255,.14); border: 1px solid rgba(120,153,255,.14); border-radius: 6px; }
  .signal-readout > dl div { padding: 10px; background: #080d16; }
  .signal-readout dt { color: #556176; font: .43rem var(--mono); text-transform: uppercase; }
  .signal-readout dd { margin-top: 3px; color: #dce5f6; font: .62rem var(--mono); }
  .signal-distribution { display: grid; gap: 7px; }
  .signal-distribution > div { display: grid; grid-template-columns: 58px 1fr 22px; align-items: center; gap: 7px; color: #6f7c92; font: .45rem var(--mono); }
  .signal-distribution > div > i { height: 3px; overflow: hidden; background: rgba(120,153,255,.08); }
  .signal-distribution > div > i b { display: block; height: 100%; min-width: 1px; }
  .signal-distribution > div > strong { color: #93a0b5; font-weight: 500; text-align: right; }
  .signal-findings > header { display: flex; align-items: end; justify-content: space-between; gap: 18px; padding: 20px 22px; background: rgba(120,153,255,.035); border-bottom: 1px solid rgba(120,153,255,.12); }
  .signal-findings h3 { margin-top: 6px; font-size: clamp(1rem,2vw,1.35rem); }
  .signal-findings > header > span { color: #65738a; font: .48rem var(--mono); }
  .signal-findings > div { display: grid; }
  .signal-findings > .signal-result-tools { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 14px; background: rgba(120,153,255,.025); border-bottom: 1px solid rgba(120,153,255,.11); }
  .signal-result-tools > p { flex: 0 0 auto; color: #657189; font: .45rem var(--mono); }
  .signal-result-tools > p b { color: #d9e2f4; font-weight: 600; }
  .signal-status-filter { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; }
  .signal-status-filter > span { margin-right: 3px; color: #59667d; font: .43rem var(--mono); letter-spacing: .08em; text-transform: uppercase; }
  .signal-status-filter button { padding: 6px 8px; color: #7d899f; background: transparent; border: 1px solid rgba(120,153,255,.15); border-radius: 4px; font: .48rem var(--mono); cursor: pointer; }
  .signal-status-filter button b { margin-left: 3px; color: #aeb9cc; font-weight: 600; }
  .signal-status-filter button:hover { color: #f1f5ff; border-color: rgba(120,153,255,.38); }
  .signal-status-filter button.active { color: #07101d; background: var(--signal-color); border-color: var(--signal-color); }
  .signal-status-filter button.active b { color: inherit; }
  .signal-status-filter button:disabled { opacity: .35; cursor: default; }
  .signal-preliminary-filter { display: flex; align-items: center; gap: 7px; color: var(--accent); font: .49rem var(--mono); }
  .signal-preliminary-filter i { width: 6px; height: 6px; background: var(--accent); transform: rotate(45deg); }
  .signal-finding { display: grid; grid-template-columns: 46px minmax(0,1fr) minmax(130px,190px) 18px; align-items: center; gap: 12px; min-height: 61px; padding: 11px 17px; color: #aeb9cc; background: transparent; border: 0; border-bottom: 1px solid rgba(120,153,255,.09); text-align: left; cursor: pointer; transition: .17s; }
  .signal-finding:last-child { border-bottom: 0; }
  .signal-finding:hover { color: #fff; background: color-mix(in srgb,var(--signal-color) 8%,transparent); }
  .signal-finding > span { color: var(--signal-color); font: .48rem var(--mono); }
  .signal-finding > strong { overflow: hidden; font-size: .7rem; text-overflow: ellipsis; white-space: nowrap; }
  .signal-finding > small { overflow: hidden; color: #5f6c82; font: .47rem var(--mono); text-overflow: ellipsis; white-space: nowrap; }
  .signal-finding > i { color: var(--accent); font-style: normal; opacity: .5; }
  .signal-finding.is-read { opacity: .58; }
  .signal-finding.is-favourite { background: linear-gradient(90deg,rgba(255,180,84,.07),transparent 62%); box-shadow: inset 2px 0 #ffb454; }
  .signal-finding.is-favourite > i::before { content: "★"; color: #ffb454; }
  .signal-finding.is-favourite > i { font-size: 0; opacity: 1; }
  .signal-finding.is-favourite > i::before { font-size: .7rem; }
  .signal-more { display: flex; align-items: center; justify-content: center; gap: 12px; min-height: 48px; color: #dbe4f6; background: rgba(120,153,255,.06); border: 0; border-top: 1px solid rgba(120,153,255,.12); font: .55rem var(--mono); cursor: pointer; }
  .signal-more:hover { background: rgba(120,153,255,.12); }
  .signal-more span { color: #657189; font-size: .45rem; }
  .signal-end { padding: 13px; color: #566279; font: .44rem var(--mono); text-align: center; }
}

@layer ported {
  /* Shared global index (replaces the removed catalogue view). */
  .global-results {
    position: fixed;
    top: 75px;
    right: clamp(22px, 4vw, 64px);
    z-index: 24;
    width: min(720px, calc(100vw - 286px));
    max-height: min(620px, calc(100vh - 94px));
    overflow: hidden;
    color: var(--ink);
    background: rgba(6, 17, 14, .985);
    border: 1px solid var(--line-strong);
    border-top: 0;
    border-radius: 0 0 14px 14px;
    box-shadow: 0 32px 90px rgba(0,0,0,.62);
    backdrop-filter: blur(24px);
  }
  .global-results[hidden] { display: none; }
  .global-results > header { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 12px 14px; color: var(--faint); border-bottom: 1px solid var(--line); font: .59rem var(--mono); text-transform: uppercase; }
  .global-results > header button { display: grid; width: 28px; height: 28px; place-items: center; color: var(--muted); background: transparent; border: 1px solid var(--line); border-radius: 50%; cursor: pointer; }
  .global-results > div { max-height: min(560px, calc(100vh - 150px)); overflow: auto; padding: 7px; scrollbar-color: var(--line-strong) transparent; }
  .global-results > div > button { display: grid; grid-template-columns: 92px minmax(0,1fr) 160px; width: 100%; align-items: center; gap: 12px; padding: 11px 12px; color: var(--muted); background: transparent; border: 0; border-bottom: 1px solid var(--line); text-align: left; cursor: pointer; }
  .global-results > div > button:hover { color: var(--ink); background: rgba(120,153,255,.07); }
  .global-results > div > button span { display: flex; gap: 7px; color: var(--faint); font: .55rem var(--mono); }
  .global-results > div > button span b { color: var(--accent); }
  .global-results > div > button strong { font-size: .72rem; line-height: 1.35; }
  .global-results > div > button small { overflow: hidden; font: .55rem var(--mono); text-align: right; text-overflow: ellipsis; white-space: nowrap; }
  .global-results > div > p { padding: 18px; color: var(--faint); font: .62rem/1.5 var(--mono); text-align: center; }

  /* The Hacker Terminal, ported into the shared application shell. */
  .hacker-terminal {
    --terminal-green: #39ff6e;
    --terminal-dim: #1e8a46;
    --terminal-dimmer: #14562e;
    position: relative;
    display: grid;
    grid-template-rows: auto minmax(420px, 64vh) auto auto;
    overflow: hidden;
    color: var(--terminal-green);
    background: #030904;
    border: 1px solid var(--terminal-dimmer);
    border-radius: 10px;
    box-shadow: 0 30px 90px rgba(0,0,0,.48), inset 0 0 80px rgba(57,255,110,.035);
    font: .72rem/1.52 var(--mono);
    text-shadow: 0 0 6px rgba(57,255,110,.35);
  }
  .hacker-terminal::before { position: absolute; inset: 0; z-index: 3; content: ""; pointer-events: none; background: repeating-linear-gradient(to bottom,rgba(0,0,0,.22) 0 1px,transparent 1px 3px); }
  .hacker-terminal::after { position: absolute; inset: 0; z-index: 3; content: ""; pointer-events: none; background: radial-gradient(ellipse at center,transparent 55%,rgba(0,10,3,.58)); animation: terminal-flicker 7s infinite steps(1); }
  @keyframes terminal-flicker { 0%,100% { opacity: 1; } 63% { opacity: .92; } 63.4% { opacity: 1; } 87% { opacity: .95; } 87.3% { opacity: 1; } }
  .hacker-terminal-head, .hacker-terminal-foot, .hacker-terminal .terminal-input, .hacker-terminal .terminal-output { position: relative; z-index: 2; }
  .hacker-terminal-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 5px 10px; padding: 7px 12px; background: rgba(57,255,110,.04); border-bottom: 1px solid var(--terminal-dimmer); }
  .hacker-terminal-head strong { color: #ffd75f; font-size: .67rem; letter-spacing: .12em; }
  .hacker-terminal-head > span { color: var(--terminal-dim); }
  .hacker-terminal-head nav { display: flex; flex: 1; flex-wrap: wrap; gap: 2px 8px; }
  .hacker-terminal button { padding: 0; color: #76ff9e; background: none; border: 0; font: inherit; text-shadow: inherit; cursor: pointer; }
  .hacker-terminal button:hover { color: #c9ffd9; text-decoration: underline; }
  .hacker-terminal-head button { color: var(--terminal-dim); font-size: .63rem; }
  .hacker-terminal .terminal-output { height: auto; overflow: auto; padding: 12px 15px 28px; color: var(--terminal-green); scrollbar-color: var(--terminal-dimmer) transparent; }
  .hacker-terminal .terminal-output p { min-height: 1.45em; margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
  .hacker-terminal .terminal-banner { margin: 6px 0 10px; color: var(--terminal-green); line-height: 1.15; text-shadow: 0 0 8px rgba(57,255,110,.55); }
  .hacker-terminal .term-dim { color: var(--terminal-dim); }
  .hacker-terminal .term-bright { color: #a8ffc4; }
  .hacker-terminal .term-gold { color: #ffd75f; font-style: normal; }
  .hacker-terminal .term-warn { color: #ff9f7a; font-style: normal; }
  .hacker-terminal .term-error { color: #ff6259; }
  .hacker-terminal .term-echo { margin-top: 10px; color: #c9ffd9; }
  .hacker-terminal .term-echo span { color: var(--terminal-dim); }
  .terminal-man { display: grid; grid-template-columns: 25ch minmax(0,1fr); gap: 2px 12px; max-width: 90ch; margin: 5px 0 8px; }
  .terminal-man span { color: var(--terminal-dim); }
  .term-volume { display: grid; grid-template-columns: 5ch 10ch 12ch minmax(0,1fr); gap: 5px; min-height: 1.45em; }
  .term-volume > span, .term-volume small { color: var(--terminal-dim); }
  .term-volume i { color: var(--terminal-dimmer); font-style: normal; }
  .hacker-terminal .term-row { display: grid; grid-template-columns: 4ch 4ch minmax(220px,1fr) 22ch; gap: 6px; padding: 2px 0; color: var(--terminal-dim); border: 0; }
  .hacker-terminal .term-row b { color: #ffd75f; font-weight: 500; }
  .hacker-terminal .term-row.is-favourite { color: #76ff9e; background: rgba(255,215,95,.025); }
  .hacker-terminal .term-row small { overflow: hidden; color: var(--terminal-dimmer); text-overflow: ellipsis; white-space: nowrap; }
  .terminal-detail { max-width: 96ch; margin: 7px 0 9px; padding: 7px 12px; background: rgba(57,255,110,.04); border: 1px solid var(--terminal-dim); }
  .terminal-detail p { display: flex; gap: 10px; }
  .terminal-detail p > span:first-child { flex: 0 0 11ch; color: var(--terminal-dim); }
  .terminal-detail p > strong, .terminal-detail p > small { overflow-wrap: anywhere; }
  .terminal-detail p button, .terminal-detail p > span:not(:first-child) { display: inline-block; margin-right: 7px; padding: 0 6px; color: var(--terminal-green); border: 1px solid var(--terminal-dim); }
  .terminal-detail p > span:not(:first-child) { color: var(--terminal-dimmer); }
  .hacker-terminal .terminal-input { display: flex; align-items: center; padding: 7px 12px; background: rgba(57,255,110,.04); border-top: 1px solid var(--terminal-dimmer); }
  .hacker-terminal .terminal-input label { flex: 0 0 auto; color: var(--terminal-dim); }
  .hacker-terminal .terminal-input input { width: 100%; padding: 0 3px; color: #c9ffd9; background: transparent; border: 0; outline: 0; font: inherit; text-shadow: inherit; caret-color: var(--terminal-green); }
  .hacker-terminal .terminal-input i { font-style: normal; animation: terminal-cursor 1.1s steps(1) infinite; }
  @keyframes terminal-cursor { 50% { opacity: 0; } }
  .hacker-terminal-foot { display: flex; flex-wrap: wrap; gap: 4px 20px; padding: 5px 12px; color: var(--terminal-dim); border-top: 1px solid var(--terminal-dimmer); font-size: .59rem; }
  .hacker-terminal-foot b { color: #a8ffc4; font-weight: 500; }

  /* The Investigation Board, preserving the source mockup's full case layout. */
  .investigation-shell { --case-paper:#f4ecd4; --case-ink:#2b2620; --case-red:#b3202a; overflow: hidden; background: linear-gradient(#241b10,#17120c); border: 1px solid #4a3520; border-radius: 10px; box-shadow: 0 28px 80px rgba(0,0,0,.38); font-family: var(--mono); }
  .investigation-tools { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 18px 0; color: #e8ddc4; }
  .investigation-tools > div:first-child { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px 18px; }
  .investigation-tools strong { font-size: .86rem; letter-spacing: .17em; }
  .investigation-tools strong span { color: #e04a4a; }
  .investigation-tools small { color: #a4936f; font-size: .58rem; }
  .investigation-tools > div:last-child { display: flex; gap: 7px; }
  .investigation-tools button { padding: 7px 10px; color: #e8ddc4; background: #2c2114; border: 1px solid #5b4527; border-radius: 3px; font-size: .59rem; letter-spacing: .05em; cursor: pointer; }
  .investigation-tools button:hover, .investigation-tools button[aria-pressed="true"] { background: #50371d; border-color: #a87c3d; }
  .investigation-tools kbd { padding: 1px 4px; color: #d5c9aa; background: #241a0e; border-color: #6b542f; font-size: .52rem; }
  .case-tabs { display: flex; align-items: end; gap: 3px; overflow-x: auto; padding: 14px 18px 0; scrollbar-color: #6b542f #1c140b; }
  .case-tab { flex: 0 0 auto; padding: 8px 14px 10px; color: #4a3a1c; background: linear-gradient(#cdb474,#b89c56); border: 1px solid #6d5626; border-bottom: 0; border-radius: 8px 8px 0 0; clip-path: polygon(6% 0,94% 0,100% 100%,0 100%); font-size: .58rem; font-weight: 800; letter-spacing: .05em; opacity: .7; cursor: pointer; transform: translateY(3px); }
  .case-tab[aria-current="true"] { padding-top: 11px; color: #3a2c10; background: linear-gradient(#e7d29a,#d3ba79); opacity: 1; transform: none; }
  .case-tab.preliminary { color: #fff0c9; background: linear-gradient(#925c2c,#68401f); border-color: #c58a4b; }
  .case-tab.preliminary[aria-current="true"] { color: #2f1a09; background: linear-gradient(#ffd08a,#e7a951); }
  .case-slip { position: relative; z-index: 2; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 22px; margin: 0 18px; padding: 9px 16px; color: #33270e; background: repeating-linear-gradient(0deg,transparent 0 22px,rgba(122,90,30,.12) 22px 23px),linear-gradient(100deg,#e7d29a,#dfc98f 60%,#d3ba79); border: 1px solid #6d5626; border-bottom: 0; box-shadow: 0 4px 10px rgba(0,0,0,.45); font-size: .62rem; }
  .case-slip.preliminary { background: repeating-linear-gradient(0deg,transparent 0 22px,rgba(122,69,24,.13) 22px 23px),linear-gradient(100deg,#f2c67f,#e6ad5c 60%,#cd8841); border-color: #8e572a; }
  .case-slip b { color: #8c161e; letter-spacing: .12em; }
  .case-slip strong { letter-spacing: .05em; }
  .case-slip span { color: #6b5526; }
  .investigation-board-frame { margin: 0 18px 12px; overflow: hidden; background: radial-gradient(1000px 380px at 30% 0%,rgba(255,226,170,.14),transparent 60%),radial-gradient(circle at 78% 18%,rgba(0,0,0,.12) 0 2px,transparent 3px),linear-gradient(160deg,#a97444,#8a5c33 70%,#7c5029); border: 14px solid #4a2f17; border-radius: 4px; box-shadow: inset 0 0 0 2px #6b4423,inset 0 0 60px rgba(0,0,0,.55),0 10px 30px rgba(0,0,0,.6); }
  .investigation-board { position: relative; width: 100%; min-height: 520px; }
  #investigation-strings { position: absolute; inset: 0; z-index: 30; width: 100%; height: 100%; pointer-events: none; filter: drop-shadow(0 3px 2px rgba(0,0,0,.45)); }
  .investigation-card { position: absolute; z-index: 10; padding: 20px 10px 8px; color: var(--case-ink); background: repeating-linear-gradient(0deg,transparent 0 17px,rgba(64,120,170,.25) 17px 18px),linear-gradient(140deg,#f8f1dc,var(--case-paper) 55%,#eadfba); border: 0; border-radius: 2px; box-shadow: 0 5px 8px rgba(0,0,0,.45),0 1px 2px rgba(0,0,0,.4); text-align: left; cursor: grab; touch-action: none; transform: rotate(var(--card-rotation)); transition: box-shadow .15s ease,transform .15s ease; }
  .investigation-card:hover { z-index: 25; box-shadow: 0 10px 18px rgba(0,0,0,.55); transform: rotate(var(--card-rotation)) scale(1.05); }
  .investigation-card.dragging { z-index: 40; box-shadow: 0 14px 24px rgba(0,0,0,.6); cursor: grabbing; transition: none; }
  .investigation-card.top-evidence { width: 204px; min-height: 148px; }
  .investigation-card.supporting-evidence { z-index: 6; width: 150px; min-height: 106px; padding-top: 17px; }
  .investigation-card strong { display: -webkit-box; overflow: hidden; margin: 0 0 4px; font-size: .64rem; line-height: 1.4; word-break: break-word; -webkit-box-orient: vertical; -webkit-line-clamp: 4; }
  .investigation-card.supporting-evidence strong { font-size: .57rem; -webkit-line-clamp: 3; }
  .investigation-card small { display: block; overflow: hidden; color: #6b6252; font-size: .5rem; letter-spacing: .02em; text-overflow: ellipsis; white-space: nowrap; }
  .evidence-pin { position: absolute; top: 4px; width: 15px; height: 15px; margin-left: -8px; border-radius: 50%; box-shadow: 0 4px 4px rgba(0,0,0,.5),inset -2px -3px 3px rgba(0,0,0,.4); }
  .evidence-pin::after { position: absolute; top: 2px; left: 3px; width: 5px; height: 4px; content: ""; background: rgba(255,255,255,.75); border-radius: 50%; }
  .evidence-pin.red, .investigation-key i.red { background: radial-gradient(circle at 35% 30%,#ff7a6e,#c8231d 60%,#7c0f0c); }
  .evidence-pin.gold, .investigation-key i.gold { background: radial-gradient(circle at 35% 30%,#ffe08a,#cf9b2f 60%,#7c5a12); }
  .evidence-pin.grey, .investigation-key i.grey { background: radial-gradient(circle at 35% 30%,#cfcfcf,#8a8a8a 60%,#4c4c4c); }
  .evidence-stamp { display: inline-block; margin-bottom: 3px; padding: 1px 6px; color: var(--case-red); border: 2px solid var(--case-red); border-radius: 2px; font-size: .53rem; font-weight: 800; letter-spacing: .08em; transform: rotate(-4deg); }
  .investigation-card.evidence-stub { padding-bottom: 26px; color: #5c584d; background: repeating-linear-gradient(0deg,transparent 0 17px,rgba(90,90,90,.2) 17px 18px),linear-gradient(140deg,#ddd8ca,#cfc9b8 60%,#beb7a3); clip-path: polygon(0 0,100% 0,100% 78%,91% 86%,82% 79%,71% 88%,60% 80%,48% 89%,37% 81%,26% 90%,15% 82%,6% 90%,0 83%); }
  .investigation-card .missing-label { color: #8c6a20; font-size: .46rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; white-space: normal; }
  .investigation-card.is-read { filter: saturate(.55) brightness(.92); }
  .investigation-card .evidence-read { position: absolute; right: 5px; bottom: 4px; color: #5a704b; font-size: .46rem; letter-spacing: .08em; }
  .investigation-card .evidence-favourite { position: absolute; left: 5px; bottom: 4px; color: #8b5608; font-size: .43rem; letter-spacing: .05em; }
  .investigation-card.is-favourite { box-shadow: 0 8px 16px rgba(0,0,0,.35),0 0 0 3px rgba(255,180,84,.38); }
  .investigation-board.dense .investigation-card.top-evidence { width: 128px; min-height: 92px; padding: 13px 6px 5px; }
  .investigation-board.dense .investigation-card.supporting-evidence { width: 98px; min-height: 70px; padding: 11px 6px 5px; }
  .investigation-board.dense .investigation-card strong { font-size: .45rem; line-height: 1.35; }
  .investigation-board.dense .investigation-card small, .investigation-board.dense .evidence-stamp { display: none; }
  .investigation-board.dense .evidence-pin { top: 2px; width: 10px; height: 10px; margin-left: -5px; }
  .investigation-key { display: flex; flex-wrap: wrap; gap: 8px 18px; padding: 2px 20px 18px; color: #96865f; font-size: .54rem; }
  .investigation-key span { display: flex; align-items: center; gap: 5px; }
  .investigation-key span:last-child { margin-left: auto; }
  .investigation-key i { width: 9px; height: 9px; border-radius: 50%; }
  .investigation-shell .preliminary-notice { margin: 12px 18px; color: #3b2918; background: #f0d49b; border-color: #9d642e; }
  .investigation-shell .preliminary-notice b { color: #8c2f22; }
}

@layer responsive {
  @media (max-height: 720px) and (min-width: 821px) {
    .sidebar { padding: 18px 18px 14px; }
    .brand-mark { width: 41px; height: 41px; }
    .brand-edition { margin: 0 0 20px 54px; }
    .nav-item { min-height: 51px; padding-block: 7px; }
    .nav-copy em { margin-top: 2px; }
    .sidebar-foot { padding-top: 10px; }
    .reading-meter { margin-bottom: 10px; padding-bottom: 10px; }
    main { padding-top: 24px; }
    .view-intro { margin-bottom: 24px; padding-top: 14px; }
  }

  @media (max-width: 1100px) {
    .project-links a b { display: none; }
    .project-links a { padding-inline: 6px; }
    .winner-plinths { grid-template-columns: repeat(3, minmax(150px, 1fr)); }
    .winner-plinths .artifact-card:first-child { grid-column: span 2; }
    .artifact-facts { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .catalogue-head, .catalogue-row { grid-template-columns: 62px minmax(220px,2fr) minmax(100px,.7fr) 80px; }
    .catalogue-head > *:nth-child(5), .catalogue-row > *:nth-child(5) { display: none; }
    .signal-console { grid-template-columns: 72px minmax(0,1fr); }
    .signal-console > dl { grid-column: 1 / 3; }
    .signal-focus-grid { grid-template-columns: 280px minmax(0,1fr); }
  }

  @media (max-width: 820px) {
    .app-shell:not([hidden]) { display: block; }
    .workspace { grid-column: auto; }
    .sidebar { width: min(290px, 86vw); padding-top: max(28px, env(safe-area-inset-top)); transform: translateX(-105%); transition: transform .25s ease; box-shadow: 25px 0 70px rgba(0,0,0,.55); }
    body.menu-open { overflow: hidden; }
    body.menu-open .sidebar { transform: none; }
    .mobile-menu { display: block; }
    .topbar { padding-inline: 14px; }
    .project-links { display: none; }
    .sidebar-project-links { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 5px; margin: -22px 0 20px; }
    .sidebar-project-links a { display: grid; min-height: 54px; place-items: center; gap: 4px; padding: 7px 4px; color: var(--muted); background: rgba(20,24,36,.48); border: 1px solid var(--line); border-radius: 3px; font: 600 .48rem/1.2 var(--mono); text-align: center; text-decoration: none; }
    .sidebar-project-links a span { color: var(--accent); font-size: .58rem; }
    .sidebar-project-links a:last-child span { color: var(--coral); }
    .sidebar-project-links a:hover { color: var(--ink); border-color: var(--line-strong); }
    .global-results { right: 14px; left: 14px; width: auto; }
    .global-search { width: auto; flex: 1; }
    .global-search kbd, .quiet-button { display: none; }
    main { padding-inline: 18px; }
    .view-intro { align-items: start; }
    .view-metric { display: none; }
    .winner-plinths { grid-template-columns: repeat(2, minmax(140px,1fr)); }
    .winner-plinths .artifact-card:first-child { grid-column: span 2; }
    .library-desk, .timeline-exhibit, .dig-console { grid-template-columns: 1fr; }
    .depth-scale { min-height: 180px; }
    .depth-controls { display: none; }
    .catalogue-tools { top: 73px; grid-template-columns: repeat(2,1fr); }
    .catalogue-head, .catalogue-row { grid-template-columns: 58px minmax(190px,1fr) 90px; }
    .catalogue-head > *:nth-child(3), .catalogue-row > *:nth-child(3), .catalogue-head > *:nth-child(5), .catalogue-row > *:nth-child(5) { display: none; }
    .case-file { width: 38%; }
    .case-file:nth-of-type(5) { width: 31%; left: 35%; }
    .constellation-frame { min-height: 650px; }
    .space-toolbar { top: 12px; right: 12px; flex-wrap: wrap; max-width: 390px; justify-content: end; }
    .space-toolbar button { padding: 7px 8px; }
    .space-toolbar kbd { display: none; }
    .space-coordinates { top: 12px; left: 12px; }
    .space-coordinates span:nth-child(2) { display: none; }
    .space-help { display: none; }
    .sky-legend { right: 58px; bottom: 12px; left: 12px; max-width: none; justify-content: start; }
    .star-rank-filter { right: 58px; bottom: 64px; }
    .space-selection { bottom: 258px; left: 12px; }
    .space-zoom { right: 12px; }
    .space-navigator { bottom: 60px; left: 8px; }
    .castle-shell { min-height: 620px; }
    .castle-minimap { width: 120px; height: 120px; }
    .castle-controls { display: none; }
    .castle-mobile-controls { position: absolute; right: 12px; bottom: 12px; left: 12px; z-index: 10; display: flex; align-items: end; justify-content: space-between; pointer-events: none; }
    .castle-dpad { display: grid; grid-template-columns: repeat(3, 42px); grid-template-rows: repeat(2,42px); gap: 4px; }
    .castle-dpad button:nth-child(1) { grid-column: 2; }.castle-dpad button:nth-child(2) { grid-column: 1; grid-row: 2; }.castle-dpad button:nth-child(3) { grid-column: 2; grid-row: 2; }.castle-dpad button:nth-child(4) { grid-column: 3; grid-row: 2; }
    .castle-touch-actions { display: flex; gap: 5px; }
    .castle-mobile-controls button { width: 42px; height: 42px; color: #f6d98e; background: rgba(10,5,2,.68); border: 1px solid rgba(246,201,107,.28); border-radius: 8px; font: 700 .72rem var(--mono); pointer-events: auto; backdrop-filter: blur(5px); touch-action: none; }
    .castle-touch-actions button:nth-child(2) { width: 48px; height: 48px; color: #2c1705; background: var(--amber); }
    .castle-prompt { bottom: 92px; }
    .castle-objective { right: 12px; bottom: 92px; left: auto; width: 205px; grid-template-columns: 34px minmax(0,1fr); padding: 8px; }
    .castle-objective > i { width: 31px; height: 31px; font-size: .8rem; }
    .castle-objective small { display: none; }
    .castle-below { grid-template-columns: 1fr 1fr; }
    .castle-below > p { grid-column: span 2; }
    .reader-dialog { width: calc(100vw - 12px); height: calc(100dvh - 12px); }
    .reader-layout { grid-template-columns: 1fr; }
    .reader-sidebar { display: none; }
    .reader-bar { display: grid; grid-template-columns: minmax(0,1fr) auto; min-height: 108px; padding: 11px 14px; }
    .reader-bar > form { grid-column: 2; grid-row: 1; }
    .reader-actions { grid-column: 1 / 3; grid-row: 2; width: 100%; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
    .reader-layout { height: calc(100% - 110px); }
    .reader-actions a { display: none; }
    .pdf-dialog { width: calc(100vw - 10px); height: calc(100dvh - 10px); border-radius: 12px; }
    .pdf-bar { grid-template-columns: minmax(0,1fr) auto; display: grid; min-height: 108px; padding: 11px 12px; }
    .pdf-bar > form { grid-column: 2; grid-row: 1; }
    .pdf-actions { grid-column: 1 / 3; grid-row: 2; width: 100%; overflow-x: auto; padding-bottom: 2px; scrollbar-width: thin; }
    .pdf-stage { height: calc(100% - 142px); }
    .pdf-viewer-note { overflow: hidden; padding-inline: 12px; text-overflow: ellipsis; white-space: nowrap; }
    .investigation-tools { align-items: flex-start; flex-direction: column; }
    .investigation-tools > div:last-child { flex-wrap: wrap; }
    .investigation-key span:last-child { width: 100%; margin-left: 0; }
    .hacker-terminal { grid-template-rows: auto minmax(340px, 58dvh) auto auto; }
    .signal-observatory { margin-inline: -4px; }
    .signal-console { grid-template-columns: 64px minmax(0,1fr); }
    .signal-focus-grid { grid-template-columns: 1fr; }
    .signal-finding { grid-template-columns: 44px minmax(0,1fr) 18px; }
    .signal-finding > small { display: none; }
    .site-footer { grid-template-columns: 1fr; margin-inline: 18px; }
    .credit-list { grid-template-columns: 1fr; }
    main:fullscreen { padding: 16px; }
    main:fullscreen .constellation-frame { height: calc(100dvh - 164px); min-height: 360px; }
    main:fullscreen .hacker-terminal { height: calc(100dvh - 164px); grid-template-rows: auto minmax(0,1fr) auto auto; }
  }

  @media (max-width: 560px) {
    .topbar { min-height: 66px; padding-top: max(10px, env(safe-area-inset-top)); }
    main { padding: 20px 14px max(58px, env(safe-area-inset-bottom)); }
    .view-intro { gap: 12px; margin-bottom: 20px; padding-top: 14px; }
    .view-intro-tools { align-self: start; }
    .view-fullscreen { width: 42px; min-height: 42px; padding: 0; font-size: 0; }
    .view-fullscreen span { font-size: 1rem; }
    .view-intro h1 { font-size: 2.65rem; }
    .preliminary-notice { align-items: flex-start; flex-direction: column; gap: 6px; }
    .winner-plinths, .nominee-wall, .timeline-winners { grid-template-columns: 1fr; }
    .winner-plinths .artifact-card:first-child { grid-column: auto; }
    .artifact-card { min-height: 145px; }
    .library-hall { padding-inline: 12px; }
    .library-desk { display: block; }
    .checkout-card { display: none; }
    .timeline-track { margin-inline: -18px; }
    .timeline-year { min-width: 65px; }
    .era-banner { grid-template-columns: 80px 1fr; }
    .era-banner > :last-child { display: none; }
    .sky-controls > .eyebrow { display: none; }
    .constellation-frame { height: clamp(480px, 72dvh, 620px); min-height: 480px; margin-inline: -10px; border-radius: 12px; }
    .space-coordinates { padding: 8px 9px; font-size: .47rem; }
    .space-toolbar { top: 56px; left: 12px; right: auto; }
    .space-toolbar button { padding: 7px; font-size: .49rem; }
    .space-toolbar button:nth-child(4) { display: none; }
    .space-toolbar { max-width: calc(100% - 24px); }
    .space-zoom { right: 8px; padding-inline: 4px; }
    .space-zoom-track { height: 105px; }
    .space-navigator { bottom: 64px; left: 3px; transform: scale(.8); transform-origin: left bottom; }
    .space-selection { right: 48px; bottom: 225px; left: 8px; width: auto; padding: 13px; }
    .space-selection h3 { font-size: .7rem; }
    .space-selection button { padding: 7px 8px; font-size: .49rem; }
    .sky-legend { right: 44px; bottom: 8px; left: 8px; }
    .sky-legend button { padding: 4px 5px; font-size: .47rem; }
    .star-rank-filter { right: 44px; bottom: 59px; padding: 4px; }
    .star-rank-filter > span:first-child, .star-rank-filter button b { display: none; }
    .star-rank-filter button { padding: 5px 6px; font-size: .46rem; }
    .star-rank-filter .full-label { display: none; }
    .star-rank-filter .short-label { display: inline; }
    .evidence-board { min-height: 850px; padding: 15px; }
    .case-file { width: 72%; }
    .case-file:nth-of-type(1) { top: 6%; left: 5%; }.case-file:nth-of-type(2) { top: 24%; right: 5%; }.case-file:nth-of-type(3) { top: 62%; left: 4%; }.case-file:nth-of-type(4) { top: 78%; right: 4%; }.case-file:nth-of-type(5) { top: 43%; left: 14%; width: 72%; }
    .finds-tray { grid-template-columns: 1fr; }
    .dig-site { min-height: 760px; }
    .catalogue-tools { grid-template-columns: 1fr; position: static; }
    .catalogue-head { display: none; }
    .catalogue-row { grid-template-columns: 44px 1fr; padding-block: 14px; }
    .catalogue-row > *:nth-child(n+3) { display: none; }
    .artifact-facts { grid-template-columns: 1fr 1fr; }
    .artifact-actions > * { flex: 1; justify-content: center; }
    .castle-shell { min-height: 560px; margin-inline: -10px; border-radius: 12px; }
    .castle-start { padding-inline: 20px; }
    .castle-start::before, .castle-start::after { width: 13%; }
    .castle-start h2 { font-size: 3.25rem; }
    .castle-start > p:not(.eyebrow) { max-width: 350px; }
    .castle-hud { padding: 18px; }
    .castle-progress { display: none; }
    .castle-level-tools { margin: 0 100px 0 auto; }
    .castle-level-tools label span, .castle-level-tools button, .castle-level-tools small { display: none; }
    .castle-directory { inset: 70px 12px 86px; }
    .directory-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
    .castle-minimap { top: 15px; right: 15px; bottom: auto; left: auto; width: 92px; height: 92px; }
    .castle-objective { right: auto; left: 8px; width: 195px; }
    .castle-level-tools { position: absolute; top: 68px; right: 9px; margin: 0; }
    .castle-level-tools label { padding: 3px; background: rgba(8,4,2,.76); }
    .castle-level-tools select { padding-block: 4px; }
    .castle-directory { inset: 82px 8px 90px; padding: 18px 14px; }
    .directory-grid { grid-template-columns: 1fr 1fr; }
    .directory-grid button { min-height: 72px; padding: 11px; }
    .directory-grid span { margin-bottom: 6px; font-size: .8rem; }
    .castle-directory footer span { display: none; }
    .castle-below { grid-template-columns: 1fr 1fr; }
    .castle-below > div { padding: 14px; }
    .castle-below > p { padding: 16px; }
    .reader-dialog, .pdf-dialog { width: 100vw; height: 100dvh; margin: 0; border-width: 0; border-radius: 0; }
    .reader-bar, .pdf-bar { padding-top: max(11px, env(safe-area-inset-top)); }
    .reader-close, .pdf-close { width: 42px; height: 42px; }
    .reader-bar strong { max-width: 190px; }
    .reader-actions button { padding: 8px; font-size: .52rem; }
    .markdown-body { padding: 35px 20px 80px; font-size: .82rem; }
    .pdf-bar strong { max-width: 290px; }
    .pdf-actions a, .pdf-actions button { padding: 7px 8px; font-size: .5rem; }
    .pdf-viewer-note span { display: none; }
    .global-results > div > button { grid-template-columns: 70px minmax(0,1fr); }
    .global-results > div > button small { display: none; }
    .hacker-terminal { margin-inline: -10px; border-radius: 6px; font-size: .64rem; }
    .hacker-terminal { grid-template-rows: auto minmax(300px, 54dvh) auto auto; }
    .hacker-terminal-head nav { min-width: 100%; }
    .hacker-terminal .term-row { grid-template-columns: 3ch 3ch minmax(180px,1fr); }
    .hacker-terminal .term-row small { display: none; }
    .term-volume { grid-template-columns: 4ch 9ch 9ch minmax(160px,1fr); min-width: 430px; }
    .terminal-man { grid-template-columns: 19ch minmax(180px,1fr); min-width: 430px; }
    .terminal-detail p { display: block; margin-bottom: 3px; }
    .terminal-detail p > span:first-child { display: block; }
    .hacker-terminal-foot span:last-child { display: none; }
    .investigation-shell { margin-inline: -10px; }
    .investigation-tools { padding-inline: 12px; }
    .investigation-tools > div:last-child button:last-child { display: none; }
    .case-tabs { padding-inline: 8px; }
    .case-slip { margin-inline: 8px; }
    .investigation-board-frame { margin-inline: 8px; border-width: 8px; }
    .investigation-key { padding-inline: 12px; }
    .signal-observatory { margin-inline: -10px; border-radius: 10px; }
    .signal-console { grid-template-columns: 1fr; padding: 22px 18px; }
    .signal-console-mark { display: none; }
    .signal-console > dl { grid-column: auto; }
    .signal-console > dl div { padding: 9px; }
    .signal-tuner { padding-inline: 12px; }
    .signal-tuner button { min-width: 88px; }
    .signal-chart > header { align-items: flex-start; flex-direction: column; gap: 7px; padding-inline: 14px; }
    .signal-chart-canvas { height: 255px; }
    .signal-focus { padding: 12px; }
    .signal-readout { padding: 19px; }
    .signal-findings > header { align-items: flex-start; flex-direction: column; }
    .signal-findings > .signal-result-tools { align-items: flex-start; flex-direction: column; }
    .signal-status-filter { width: 100%; }
    .signal-status-filter > span { width: 100%; }
    .signal-status-filter button { flex: 1; white-space: nowrap; }
    .signal-finding { padding-inline: 12px; }
    main:fullscreen { padding: 12px; }
    main:fullscreen .view-intro { margin-bottom: 12px; }
    main:fullscreen .view-intro h1 { font-size: 2rem; }
    main:fullscreen .view-intro > div:first-child > p:last-child { display: none; }
    main:fullscreen .constellation-frame { height: calc(100dvh - 116px); min-height: 340px; margin-inline: 0; }
    main:fullscreen .hacker-terminal { height: calc(100dvh - 116px); margin-inline: 0; }

    .investigation-board { display: grid; min-height: 0 !important; gap: 9px; padding: 12px; }
    #investigation-strings { display: none; }
    .investigation-card,
    .investigation-board.dense .investigation-card.top-evidence,
    .investigation-board.dense .investigation-card.supporting-evidence,
    .investigation-card.top-evidence,
    .investigation-card.supporting-evidence {
      position: relative;
      inset: auto !important;
      width: 100%;
      min-height: 92px;
      padding: 18px 12px 24px;
      cursor: pointer;
      touch-action: manipulation;
      transform: none;
    }
    .investigation-card:hover { transform: none; }
    .investigation-board.dense .investigation-card strong { font-size: .58rem; }
    .investigation-board.dense .investigation-card small, .investigation-board.dense .evidence-stamp { display: block; }
    .investigation-tools kbd { display: none; }
    .investigation-key span:last-child { display: none; }
  }

  @media (max-width: 390px) {
    .global-search { padding-inline: 10px; }
    .global-search input { font-size: .72rem; }
    .sound-button { display: none; }
    .view-intro h1 { font-size: 2.25rem; }
    .artifact-dialog { width: calc(100vw - 12px); }
    .artifact-dialog .dialog-body { padding-inline: 19px; }
    .artifact-facts { grid-template-columns: 1fr; }
    .pdf-bar strong { max-width: 220px; }
    .signal-status-filter { display: grid; grid-template-columns: repeat(3,1fr); }
    .signal-status-filter > span { grid-column: 1 / -1; }
    .case-slip { flex-direction: column; gap: 3px; }
  }

  @media (max-width: 820px) and (orientation: landscape) {
    .constellation-frame { height: calc(100dvh - 96px); min-height: 360px; }
    .hacker-terminal { grid-template-rows: auto minmax(250px, 62dvh) auto auto; }
    main:fullscreen .view-intro { display: none; }
    main:fullscreen .constellation-frame, main:fullscreen .hacker-terminal { height: calc(100dvh - 28px); min-height: 0; }
    main:fullscreen .signal-observatory, main:fullscreen .investigation-shell { min-height: calc(100dvh - 28px); }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  }

  body.reduce-motion *, body.reduce-motion *::before, body.reduce-motion *::after { animation: none !important; transition: none !important; }
}