:root {
  --bg: #000;
  --fg: #fff;
  --body: #bbb;
  --dim: #777;
  --line: #2a2a2a;
  --line-soft: #1c1c1c;
  --lift: #1a1a1a;
  --green: #39ff5a;
  --magenta: #ff1a7a;
  --cyan: #1eaaff;
  --yellow: #f5ff3a;
  --amber: #ffb830;
  --sans: "Space Grotesk", system-ui, sans-serif;
  --mono: "Share Tech Mono", "JetBrains Mono", ui-monospace, monospace;
  --topbar: 48px;
  --filters: 44px;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--fg); }
body { font-family: var(--sans); font-weight: 400; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow: hidden; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
[hidden] { display: none !important; }

.mono { font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; }
.dim { color: var(--dim); }
.tracked { letter-spacing: 0.32em; }
.val { color: var(--fg); }

/* ---------- ENTRY ---------- */
.entry {
  position: fixed; inset: 0; z-index: 50; background: var(--bg);
  display: flex; align-items: center; justify-content: center; text-align: center;
  transition: opacity 1.4s ease;
}
.entry.leaving { opacity: 0; pointer-events: none; }
.entry-stack { display: flex; flex-direction: column; align-items: center; gap: 18px; padding: 0 24px; }
.entry-line { font-weight: 400; font-size: clamp(11px, 1.4vw, 15px); letter-spacing: 0.42em; text-transform: uppercase; color: #ddd; margin-top: 6px; }
.entry-title {
  margin: 4px 0 8px; font-weight: 700; text-transform: uppercase;
  font-size: clamp(64px, 16vw, 200px); line-height: 0.9; letter-spacing: -0.03em; color: var(--fg);
}
.entry-meta { font-size: 10px; }
.enter { margin-top: 40px; color: var(--dim); letter-spacing: 0.32em; animation: blink 1.8s steps(2, start) infinite; }
.enter:hover { color: var(--fg); animation: none; }
@keyframes blink { 50% { opacity: 0.25; } }

/* ---------- APP CHROME ---------- */
.app { position: fixed; inset: 0; opacity: 0; transition: opacity 1.2s ease; }
.app.ready { opacity: 1; }
.topbar {
  position: absolute; top: 0; left: 0; right: 0; height: var(--topbar); z-index: 20;
  display: flex; align-items: center; justify-content: space-between; padding: 0 24px;
  border-bottom: 1px solid var(--line); background: var(--bg);
}
.brand { color: var(--fg); letter-spacing: 0.28em; }
.nav { display: flex; gap: 28px; }
.nav a { color: var(--dim); transition: color 0.4s ease; }
.nav a:hover { color: #ccc; }
.nav a.active { color: var(--fg); }

/* The way back to the site, shown only when this page is the whole window
   (see the inline script in index.html). Dimmer than the views it sits
   beside: it leaves the atlas rather than moving around inside it. */
.back {
  color: #6a6a6a;
  border-left: 1px solid var(--line);
  padding-left: 28px;
  transition: color 0.4s ease;
}
.back:hover { color: #ccc; }

/* On the entry screen there is no bar to sit in, so it stands on its own
   under ENTER, quieter still. */
.back--entry {
  border-left: 0;
  padding-left: 0;
  margin-top: 4px;
  font-size: 9px;
  letter-spacing: 0.22em;
}

.filters {
  position: absolute; top: var(--topbar); left: 0; right: 0; z-index: 19; min-height: var(--filters);
  display: flex; flex-wrap: wrap; align-items: center; gap: 0 28px; padding: 6px 24px;
  border-bottom: 1px solid var(--line-soft); background: var(--bg); color: var(--dim);
}
.filters.off { display: none; }
.fgroup { display: flex; align-items: center; gap: 12px; white-space: nowrap; }
.fgroup .flabel { color: #555; }
.fbtn { color: var(--dim); padding: 4px 0; border-bottom: 1px solid transparent; transition: color 0.3s ease; letter-spacing: 0.18em; }
.fbtn:hover { color: #ccc; }
.fbtn.on { color: var(--fg); }
.fbtn .dot { margin-right: 6px; }
.frange { display: flex; align-items: center; gap: 10px; }
.frange input[type=range] { -webkit-appearance: none; appearance: none; width: 110px; height: 1px; background: #444; outline: 0; }
.frange input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 8px; height: 8px; background: var(--fg); border-radius: 0; cursor: pointer; }
.frange input[type=range]::-moz-range-thumb { width: 8px; height: 8px; background: var(--fg); border: 0; border-radius: 0; cursor: pointer; }
.fsearch { position: relative; margin-left: auto; }
.fsearch input {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase;
  background: var(--bg); color: var(--fg); border: 0; border-bottom: 1px solid #444; padding: 5px 0; width: 200px; outline: 0;
}
.fsearch input::placeholder { color: #555; }
.fsearch input:focus { border-bottom-color: var(--fg); }
.fresults {
  position: absolute; top: 28px; left: 0; width: 320px; max-height: 260px; overflow: auto; z-index: 30;
  background: var(--bg); border: 1px solid var(--line);
}
.fresults button { display: block; width: 100%; text-align: left; padding: 8px 12px; color: var(--body); font-family: var(--sans); font-size: 12px; letter-spacing: 0; text-transform: none; border-bottom: 1px solid var(--line-soft); }
.fresults button:hover { background: var(--lift); color: var(--fg); }
.fresults button .dot { margin-right: 8px; }

/* ---------- STAGE / VIEWS ---------- */
.stage { position: absolute; top: calc(var(--topbar) + var(--filters)); left: 0; right: 0; bottom: 0; }
.stage.nofilters { top: var(--topbar); }
.view { position: absolute; inset: 0; }
.view-canvas canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; cursor: grab; touch-action: none; }
.view-canvas canvas.grabbing { cursor: grabbing; }
.view-canvas canvas.pointing { cursor: pointer; }
.view-tag { position: absolute; top: 14px; left: 24px; pointer-events: none; }

.view-page { overflow: auto; -webkit-overflow-scrolling: touch; }
.page { max-width: 1120px; margin: 0 auto; padding: 56px 24px 120px; }

/* ---------- LEGEND ---------- */
.legend {
  position: absolute; left: 24px; bottom: 20px; z-index: 15; padding: 12px 14px;
  border: 1px solid var(--line); background: var(--bg); color: var(--dim); font-size: 9px; letter-spacing: 0.16em;
  display: flex; flex-direction: column; gap: 6px; pointer-events: none;
}
.legend-title { margin-bottom: 2px; }
.legend-row { display: flex; align-items: center; gap: 8px; }
.dot { display: inline-block; width: 6px; height: 6px; border-radius: 50%; flex: none; }
.ring { display: inline-block; width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--amber); flex: none; }
.swatch-line { display: inline-block; width: 22px; height: 0; flex: none; }
.swatch-line.documented { border-top: 2px solid var(--green); opacity: 0.8; }
.swatch-line.latent { border-top: 1px dashed #aaa; opacity: 0.6; }

/* ---------- TOOLTIP ---------- */
.tooltip { position: absolute; z-index: 25; pointer-events: none; color: var(--fg); background: var(--bg); border: 1px solid var(--line); padding: 5px 8px; white-space: nowrap; }
.tooltip .dim { margin-left: 8px; }

/* ---------- PANEL ---------- */
.panel {
  position: absolute; top: 20px; right: 24px; bottom: 20px; width: 400px; z-index: 22;
  background: var(--bg); border: 1px solid var(--line); overflow: auto; -webkit-overflow-scrolling: touch;
  animation: fadein 0.6s ease;
}
@keyframes fadein { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.panel-inner { padding: 20px 22px 32px; }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
.panel-close { color: var(--dim); font-family: var(--mono); font-size: 11px; letter-spacing: 0.2em; padding: 0; }
.panel-close:hover { color: var(--fg); }
.panel h2 { font-weight: 500; font-size: 22px; line-height: 1.2; margin: 10px 0 4px; color: var(--fg); }
.panel .local { font-family: var(--mono); font-style: italic; font-size: 11px; letter-spacing: 0.06em; color: #999; text-transform: none; }
.accent-rule { height: 2px; margin: 14px 0 16px; }
.panel p { color: var(--body); font-size: 13.5px; line-height: 1.65; margin: 0 0 12px; }
.panel .sec { margin-top: 20px; padding-top: 14px; border-top: 1px solid var(--line-soft); }
.panel .sec-title { margin-bottom: 10px; color: var(--dim); }
.rows { display: grid; grid-template-columns: 1fr; gap: 6px; }
.row { display: flex; gap: 10px; align-items: baseline; }
.row .k { color: var(--dim); min-width: 120px; flex: none; }
.row .v { color: var(--fg); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { border: 1px solid #3a3a3a; padding: 3px 7px; color: #aaa; font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; }
.tag.fam { color: var(--fg); border-color: #555; }
.srcs { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.srcs li { position: relative; padding: 8px 0 8px 32px; border-bottom: 1px solid var(--line-soft); font-size: 12.5px; color: var(--body); line-height: 1.5; }
.srcs li::before { counter-increment: s; content: "[" counter(s, decimal-leading-zero) "]"; position: absolute; left: 0; top: 10px; font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; color: var(--dim); }
.srcs a { color: var(--fg); border-bottom: 1px solid #444; }
.srcs a:hover { border-bottom-color: var(--fg); }
.srcs .meta { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; color: var(--dim); text-transform: uppercase; display: block; margin-top: 2px; }
.conns { display: flex; flex-direction: column; }
.conn { position: relative; display: block; width: 100%; text-align: left; padding: 10px 24px 10px 0; border-bottom: 1px solid var(--line-soft); transition: background 0.3s ease; }
.conn:hover { background: var(--lift); }
.conn:hover::after { content: "→"; position: absolute; right: 8px; top: 10px; color: var(--fg); font-size: 12px; }
.conn .name { font-family: var(--sans); font-size: 13px; color: var(--fg); display: flex; align-items: center; gap: 8px; letter-spacing: 0; text-transform: none; }
.conn .sub { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; color: var(--dim); text-transform: uppercase; margin-top: 3px; padding-left: 14px; }
.conn .sub .val { color: var(--fg); }
.conn .desc { font-size: 12px; color: #999; margin-top: 4px; padding-left: 14px; line-height: 1.5; }
.empty { color: #555; font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; }

/* ---------- PAGES ---------- */
.page-head { padding-bottom: 20px; border-bottom: 1px solid var(--line); margin-bottom: 8px; display: flex; align-items: baseline; gap: 22px; }
.page-head h1 { font-weight: 500; font-size: 22px; margin: 0; }
.tl { position: relative; }
.tl-row { display: grid; grid-template-columns: 200px 1fr; gap: 32px; padding: 34px 0; border-bottom: 1px solid var(--line-soft); position: relative; }
.tl-left { position: relative; padding-left: 26px; }
.tl-left::before { content: ""; position: absolute; left: 6px; top: 0; bottom: -34px; width: 1px; background: var(--line); }
.tl-row:last-child .tl-left::before { bottom: 0; }
.tl-left::after { content: ""; position: absolute; left: 3px; top: 6px; width: 6px; height: 6px; border: 1px solid #666; background: var(--bg); transform: rotate(45deg); }
.tl-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--fg); line-height: 1.5; position: sticky; top: 24px; }
.tl-label .idx { display: block; color: var(--dim); margin-bottom: 4px; }
.tl-body { color: var(--body); font-size: 15px; line-height: 1.7; min-width: 0; }
.tl-body h3 { font-weight: 500; font-size: 16px; color: var(--fg); margin: 22px 0 8px; }
.tl-body h2 { font-weight: 500; font-size: 18px; color: var(--fg); margin: 0 0 12px; }
.tl-body p { margin: 0 0 14px; }
.tl-body strong { color: var(--fg); font-weight: 500; }
.tl-body em { color: #ddd; }
.tl-body ul, .tl-body ol { padding-left: 20px; }
.tl-body li { margin-bottom: 8px; }
.tl-body code { font-family: var(--mono); font-size: 12px; color: #ddd; letter-spacing: 0.02em; }
.tl-body pre { font-family: var(--mono); font-size: 12px; color: #ddd; border: 1px solid var(--line); padding: 14px 16px; overflow: auto; line-height: 1.6; }
.tl-body a { color: var(--fg); border-bottom: 1px solid #444; word-break: break-word; }
.tl-body a:hover { border-bottom-color: var(--fg); }
.tl-body table { border-collapse: collapse; width: 100%; font-size: 13px; margin: 8px 0 18px; }
.tl-body th, .tl-body td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.tl-body th { font-family: var(--mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--dim); font-weight: 400; }
.tl-body blockquote { margin: 0; padding-left: 14px; border-left: 1px solid var(--line); color: #999; }
.tl-body hr { border: 0; border-top: 1px solid var(--line-soft); margin: 20px 0; }
.bib .tl-body p { font-size: 13.5px; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--line-soft); }

.downloads { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0; border: 1px solid var(--line); margin: 8px 0 40px; }
.dl { position: relative; padding: 18px 20px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); transition: background 0.3s ease; display: block; }
.dl:hover { background: var(--lift); }
.dl:hover::after { content: "→"; position: absolute; right: 14px; top: 14px; color: var(--fg); }
.dl .fname { font-weight: 500; font-size: 15px; color: var(--fg); margin: 6px 0 4px; }
.dl .fdesc { font-size: 12.5px; color: #999; line-height: 1.5; }
.dl .fcta { margin-top: 10px; color: var(--dim); }
.dl:hover .fcta { color: var(--fg); }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); border: 1px solid var(--line); margin: 8px 0 40px; }
.stat { padding: 16px 18px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stat .n { font-weight: 500; font-size: 26px; color: var(--fg); line-height: 1.1; }
.stat .l { margin-top: 6px; }
.credit { margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 8px 32px; }
.about-lead { font-size: 15px; }

/* ---------- MOBILE ---------- */
@media (max-width: 860px) {
  .topbar { padding: 0 16px; }
  .brand span { display: none; }
  .nav { gap: 14px; }
  .nav a { font-size: 9px; letter-spacing: 0.12em; }
  .filters { padding: 6px 16px; gap: 0 18px; min-height: var(--filters); }
  .fsearch { margin-left: 0; width: 100%; }
  .fsearch input { width: 100%; }
  .filters { gap: 2px 16px; }
  .fgroup { flex-wrap: wrap; gap: 6px 10px; }
  .panel { max-height: 56vh; }
  .view-tag { display: none; }
  .legend { left: 12px; bottom: 12px; font-size: 8px; padding: 8px 10px; gap: 4px; }
  .legend .legend-row:last-child { display: none; }
  .panel {
    top: auto; left: 0; right: 0; bottom: 0; width: auto; max-height: 62vh;
    border-left: 0; border-right: 0; border-bottom: 0;
  }
  .page { padding: 32px 16px 100px; }
  .tl-row { grid-template-columns: 1fr; gap: 14px; padding: 26px 0; }
  .tl-label { position: static; }
  .tl-left::before { display: none; }
  .row .k { min-width: 96px; }
}