@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url("fonts/source-serif-4-normal-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:200 900;font-display:swap;src:url("fonts/source-serif-4-normal-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url("fonts/source-serif-4-italic-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:200 900;font-display:swap;src:url("fonts/source-serif-4-italic-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-latin.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans";font-style:normal;font-weight:300 700;font-display:swap;src:url("fonts/IBMPlexSans-latin-ext.woff2") format("woff2");unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

/* night: the map is a dark sheet, the unclassified schools a grey fog, class I the red dot */
:root{
  color-scheme:dark;
  --bg:#0b0e13;--surface:#121721;--surface-2:#1a2130;--land:#10151e;
  --ink:#f1ede4;--ink-2:#d8d2c6;--muted:#b8b1a3;--line:#2a3344;--line-soft:#212938;
  --k1:#ff5b4c;--k2:#f2a33a;--k3:#6fb8a6;--k0:#6f7c90;--halo:rgba(255,91,76,.9);
  --k1-ink:#ff9a8e;--k2-ink:#f6c27a;--k3-ink:#9fd3c5;
  --accent:#ff9a8e;--accent-ink:#1b0906;
  --serif:"Source Serif 4","Iowan Old Style",Georgia,serif;--sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --topbar:46px;
  --to-top-bg:#0b0e13;--to-top-fg:#f1ede4;
}
:root[data-theme="light"]{
  color-scheme:light;
  --bg:#f4f0e7;--surface:#fffcf6;--surface-2:#ebe4d6;--land:#fbf8f1;
  --ink:#1b1915;--ink-2:#37322a;--muted:#4e483e;--line:#cfc5b2;--line-soft:#e0d7c6;
  --k1:#d0261a;--k2:#a86c00;--k3:#2f7a6a;--k0:#6b7585;--halo:rgba(208,38,26,.55);
  --k1-ink:#9e1a10;--k2-ink:#7c4400;--k3-ink:#1f5a4d;
  --accent:#9e1a10;--accent-ink:#fff8f2;
  --to-top-bg:#f4f0e7;--to-top-fg:#1b1915;
}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]){
  color-scheme:light;
  --bg:#f4f0e7;--surface:#fffcf6;--surface-2:#ebe4d6;--land:#fbf8f1;
  --ink:#1b1915;--ink-2:#37322a;--muted:#4e483e;--line:#cfc5b2;--line-soft:#e0d7c6;
  --k1:#d0261a;--k2:#a86c00;--k3:#2f7a6a;--k0:#6b7585;--halo:rgba(208,38,26,.55);
  --k1-ink:#9e1a10;--k2-ink:#7c4400;--k3-ink:#1f5a4d;
  --accent:#9e1a10;--accent-ink:#fff8f2;
  --to-top-bg:#f4f0e7;--to-top-fg:#1b1915;
}}
*{box-sizing:border-box}
[hidden]{display:none!important}
svg[hidden]{display:none}
html{-webkit-text-size-adjust:100%;scroll-padding-top:calc(var(--topbar) + 12px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--serif);font-size:18px;line-height:1.58;-webkit-font-smoothing:antialiased;overflow-x:clip}
a{color:inherit;text-decoration-color:var(--accent);text-underline-offset:.18em;text-decoration-thickness:1.5px}
a:hover{color:var(--accent)}
:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip-link{position:absolute;left:12px;top:-60px;z-index:100;background:var(--accent);color:var(--accent-ink);padding:10px 14px;border-radius:8px;font:600 15px var(--sans)}
.skip-link:focus{top:10px}
.num{font-variant-numeric:tabular-nums lining-nums}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* top bar */
.topbar{position:fixed;inset:0 0 auto 0;height:var(--topbar);z-index:40;display:flex;align-items:center;gap:6px;padding:0 max(14px,env(safe-area-inset-right)) 0 max(14px,env(safe-area-inset-left));background:var(--bg);border-bottom:1px solid var(--line-soft);font:500 14px var(--sans)}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;white-space:nowrap;color:var(--ink-2)}
.brand-mark{width:11px;height:11px;border-radius:50%;background:var(--k1);box-shadow:0 0 0 3px color-mix(in srgb,var(--k1) 25%,transparent)}
.spacer{flex:1}
.chip{padding:4px 9px;border-radius:999px;text-decoration:none;font-weight:600;font-size:12.5px;border:1px solid var(--line);color:var(--ink-2)}
.chip[aria-current="page"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.icon-btn{width:34px;height:34px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.icon-btn:hover{background:var(--surface-2)}
@media (max-width:380px){.brand span:last-child{display:none}}

/* reading rail */
.rail{position:fixed;right:8px;top:50%;transform:translateY(-50%);z-index:30;display:none;flex-direction:column;gap:2px;opacity:0;transition:opacity .4s}
.rail.on{opacity:1}
@media (min-width:1240px){.rail{display:flex}}
.rail a{position:relative;display:flex;align-items:center;justify-content:center;width:22px;height:22px;text-decoration:none;font:500 12px var(--sans);color:var(--ink-2)}
.rail .dot{width:6px;height:6px;border-radius:50%;background:var(--line);transition:transform .2s,background .2s}
.rail a[aria-current="true"] .dot{background:var(--k1);transform:scale(1.4)}
.rail-label{position:absolute;right:26px;top:50%;transform:translateY(-50%);white-space:nowrap;padding:3px 8px;border-radius:6px;background:var(--surface);border:1px solid var(--line-soft);opacity:0;pointer-events:none;transition:opacity .15s}
.rail a:hover .rail-label,.rail a:focus-visible .rail-label{opacity:1}

/* the lookup: text and answer on the left, the map on the right */
main{padding-top:var(--topbar)}
.lookup{display:grid;grid-template-columns:minmax(360px,460px) 1fr;min-height:calc(100svh - var(--topbar))}
.panel{padding:30px 30px 40px 34px;border-right:1px solid var(--line-soft);background:var(--bg);position:relative;z-index:2}
.kicker{font:600 12.5px/1.5 var(--sans);letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
h1{font-size:clamp(28px,2.6vw,38px);line-height:1.12;font-weight:650;letter-spacing:-.012em;margin:0 0 16px;text-wrap:balance}
.answer{font-size:17.5px;color:var(--ink-2);margin:0 0 22px}
.answer strong{color:var(--ink);font-weight:650}
.search label{display:block;font:650 15px var(--sans);margin-bottom:7px}
.qwrap{position:relative;display:flex;gap:8px}
#q{flex:1;min-width:0;font:500 17px var(--sans);padding:12px 14px;border-radius:10px;border:1.5px solid var(--line);background:var(--surface);color:var(--ink)}
#q::placeholder{color:var(--muted);opacity:1}
#q:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
.clear,.mt.wide{font:600 14px var(--sans);padding:0 12px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer;white-space:nowrap;min-height:44px}
.clear:hover,.mt:hover{background:var(--surface-2)}
.search{position:relative}
.sugg{position:absolute;left:0;right:0;top:calc(100% - 26px);z-index:20;margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 40px rgba(0,0,0,.35);max-height:min(60svh,430px);overflow:auto}
.sugg li{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:8px;cursor:pointer;font:15px/1.35 var(--sans)}
.sugg li b{display:block;font-weight:600}
.sugg li small{display:block;color:var(--muted);font-size:13px;margin-top:2px}
.sugg li:hover,.sugg li[aria-selected="true"]{background:var(--surface-2)}
.sugg li.none{cursor:default;color:var(--muted)}
.hint{font:14px/1.5 var(--sans);color:var(--muted);margin:8px 0 0}
.sw{display:inline-block;flex:none;width:11px;height:11px;border-radius:50%;margin-top:4px;background:var(--k0)}
.sw.k1{background:var(--k1);box-shadow:0 0 0 3px color-mix(in srgb,var(--k1) 22%,transparent)}.sw.k2{background:var(--k2)}.sw.k3,.sw.k4{background:var(--k3)}.sw.kx{background:transparent;border:1.5px solid var(--k0)}

/* the answer */
.result{margin-top:22px;padding:20px 20px 16px;border-radius:14px;background:var(--surface);border:1px solid var(--line-soft)}
.r-where{font:600 13px var(--sans);letter-spacing:.03em;text-transform:uppercase;color:var(--muted);margin:0 0 6px}
.r-name{font-size:24px;line-height:1.2;margin:0 0 8px;font-weight:650}
.r-pj,.r-addr{font:14.5px/1.45 var(--sans);color:var(--muted);margin:0 0 4px}
.r-sum{margin:14px 0 6px;font-size:17px}
.r-sum strong{font-weight:650}
.r-h{font:650 13px var(--sans);letter-spacing:.03em;text-transform:uppercase;color:var(--muted);margin:16px 0 6px}
.r-blds{list-style:none;margin:0;padding:0}
.r-blds li{display:grid;grid-template-columns:16px auto 1fr auto;gap:4px 8px;align-items:start;padding:8px 0;border-top:1px solid var(--line-soft);font:15px/1.4 var(--sans)}
.b-c{font-weight:650;white-space:nowrap}
.b-u{color:var(--ink-2)}
.b-s{color:var(--muted);font-size:13.5px}
.b-n{font-weight:650;font-variant-numeric:tabular-nums}
.r-since{list-style:none;margin:4px 0 0;padding:0;font:14.5px/1.45 var(--sans);color:var(--ink-2)}
.r-since li{margin:2px 0}
.r-lists{margin:10px 0 0;font:14px/1.4 var(--sans)}
.r-lists summary{cursor:pointer;font-weight:600;color:var(--ink-2);padding:6px 0}
.lists{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}
.lists th,.lists td{padding:4px 6px;border-bottom:1px solid var(--line-soft);text-align:left;font-weight:500}
.lists thead th{color:var(--muted);font-weight:650;white-space:nowrap}
.r-note{font:14.5px/1.5 var(--sans);color:var(--ink-2);background:var(--surface-2);border-radius:8px;padding:9px 12px;margin:10px 0 0}
.strip{margin:16px 0 4px}
.strip figcaption,.chart-fig figcaption{font:650 13px var(--sans);color:var(--muted);margin-bottom:4px}
.strip svg{display:block;width:100%;height:auto}
.strip rect.k1{fill:var(--k1)}.strip rect.k2{fill:var(--k2)}.strip rect.k3{fill:var(--k3)}.strip rect.k0{fill:var(--k0)}
.strip .gap{stroke:var(--line);stroke-width:2}
.strip .tick,.chart .tick{font:500 12px var(--sans);fill:var(--muted)}
.strip-note{font:13px var(--sans);color:var(--muted);margin:2px 0 0}
.r-mean{margin:12px 0 0;font:14px/1.45 var(--sans);color:var(--ink-2)}
.r-mean dd{margin:0 0 5px;display:flex;gap:8px}
.r-mean b{white-space:nowrap}
.loading-inline{font:14px var(--sans);color:var(--muted)}

.share{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px}
.share-label{font:600 13.5px var(--sans);color:var(--muted);margin-right:4px}
.sb{width:40px;height:40px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-soft);background:transparent;color:var(--ink);cursor:pointer;text-decoration:none}
.sb:hover,.sb:focus-visible{color:var(--accent);border-color:var(--accent)}
@media (pointer:coarse){.sb{width:44px;height:44px}}
.status{font:13.5px var(--sans);color:var(--muted);flex-basis:100%}
.status:empty{display:none}

/* the map */
.stage{position:sticky;top:var(--topbar);height:calc(100svh - var(--topbar));background:var(--bg);overflow:hidden}
.stage canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-y;cursor:pointer}
.loading{position:absolute;inset:0;display:grid;place-items:center;font:15px var(--sans);color:var(--muted);margin:0}
.map-tools{position:absolute;top:14px;right:14px;display:flex;gap:6px;z-index:3}
.mt{min-width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:600 20px/1 var(--sans);cursor:pointer}
.mt.wide{font-size:14px;background:var(--bg)}
.legend{position:absolute;left:18px;top:14px;z-index:3;font:13px/1.4 var(--sans);color:var(--ink-2);background:color-mix(in srgb,var(--bg) 86%,transparent);padding:8px 12px 6px;border-radius:10px}
.legend p{margin:0 0 4px;font-weight:650;color:var(--muted)}
.legend ul{list-style:none;margin:0;padding:0;display:grid;gap:3px}
.legend li{display:flex;gap:8px;align-items:center}.legend .sw{margin:0}
.timebar{position:absolute;left:18px;right:18px;bottom:44px;z-index:3;display:flex;align-items:center;gap:12px;font:14px var(--sans)}
.play{font:600 14px var(--sans);min-height:40px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:var(--bg);color:var(--ink);cursor:pointer;white-space:nowrap}
.play[data-on]{border-color:var(--k1)}
.timebar input{flex:1;accent-color:var(--k1);min-width:0}
.timebar output{font-weight:650;white-space:nowrap;min-width:10.5em;color:var(--ink)}
.stage.past .timebar output{color:var(--accent)}
.map-note{position:absolute;left:18px;right:18px;bottom:8px;margin:0;font:12.5px/1.4 var(--sans);color:var(--muted)}

/* chapters */
.chapters{max-width:760px;margin:0 auto;padding:30px 22px 40px}
.chapter{padding:34px 0 10px;border-top:1px solid var(--line-soft)}
.chapter h2{font-size:clamp(24px,2.4vw,31px);line-height:1.18;margin:0 0 14px;font-weight:650;text-wrap:balance}
.chapter h3{font:650 15px var(--sans);margin:26px 0 8px}
.chapter p{margin:0 0 14px}
.classes{display:grid;gap:8px;margin:6px 0 18px;font:15.5px/1.45 var(--sans)}
.cl{display:grid;grid-template-columns:150px 1fr;gap:10px;padding:10px 12px;border-radius:10px;background:var(--surface);border:1px solid var(--line-soft)}
.cl dt{font-weight:650;display:flex;gap:8px}.cl dd{margin:0;color:var(--ink-2)}
.charts{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:10px 0 6px}
.chart-fig{margin:0}
.chart{display:block;width:100%;height:auto}
.chart .grid{stroke:var(--line-soft);stroke-width:1}.chart .grid.v{stroke-dasharray:2 3}
.chart .line{fill:none;stroke-width:2.2}.chart .line.k1{stroke:var(--k1)}.chart .line.k0{stroke:var(--k0)}
.chart .pt.k1{fill:var(--k1)}.chart .pt.k0{fill:var(--k0)}
.chart .end{font:650 14px var(--sans);fill:var(--ink)}
.chart .cursor{stroke:var(--ink);stroke-width:1;stroke-dasharray:3 3;opacity:.7}
.table-wrap{overflow-x:auto;margin:8px 0 10px;border:1px solid var(--line-soft);border-radius:12px}
.rs1{width:100%;border-collapse:collapse;font:14.5px/1.4 var(--sans)}
.rs1 th{text-align:left;font-weight:650;color:var(--muted);padding:9px 10px;border-bottom:1px solid var(--line);white-space:nowrap;background:var(--surface)}
.rs1 td{padding:8px 10px;border-bottom:1px solid var(--line-soft);vertical-align:top}
.rs1 td .use{color:var(--muted)}
.more{font:600 14.5px var(--sans);min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}
.more:hover{background:var(--surface-2)}
.sources{font:15px/1.5 var(--sans);padding-left:20px}.sources li{margin-bottom:6px}
.related ul{font:16px/1.5 var(--sans);padding-left:18px}
.footer{max-width:760px;margin:0 auto;padding:20px 22px 60px;font:13.5px/1.55 var(--sans);color:var(--muted);border-top:1px solid var(--line-soft)}

/* phone and narrow screens: text first, the map below it, never under the text */
@media (max-width:899px){
  .lookup{display:block;min-height:0}
  .panel{border-right:0;padding:22px 18px 18px}
  h1{font-size:28px}
  .stage{position:relative;top:0;height:min(64svh,560px);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
  .legend{left:10px;right:10px;top:58px;font-size:12px;padding:5px 9px}
  .legend ul{display:flex;flex-wrap:wrap;gap:4px 12px}
  .legend p{display:none}
  .map-tools{top:10px;right:10px}
  .timebar{left:10px;right:10px;bottom:62px;gap:8px}
  .timebar output{min-width:0;font-size:13px}
  .map-note{left:10px;right:10px;bottom:6px;font-size:11.5px;line-height:1.3}
  .charts{grid-template-columns:1fr}
  .cl{grid-template-columns:1fr;gap:2px}
  .chapters{padding:10px 18px 30px}
}
@media print{.topbar,.rail,.stage,.share{display:none}}