:root{--bg:#14141a;--panel:#1d1d24;--panel2:#24242d;--ink:#ecebe6;--muted:#a9a8b3;--gold:#f2c200;--gold-ink:#111;--line:#2c2c36;--link:#2b2b36;
  --f-theistic:#f2c200;--f-non-theistic-religious:#f0a050;--f-naturalistic:#5cb8e4;--f-philosophical:#a6d65c;--f-pantheistic-or-panentheistic:#c89be6;--f-indigenous-or-folk:#5fd0c0;--f-other:#9fb3bf;
  --ok:#7ed37e;--warn:#f0c674;--bad:#f27a7a;--shadow:0 -6px 24px rgba(0,0,0,.45)}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]){--bg:#f6f5f0;--panel:#fff;--panel2:#f1f0ea;--ink:#1d1d24;--muted:#5a5a66;--line:#e2e0d8;--link:#dcdad2;--gold:#b88f00;--gold-ink:#fff;
  --f-theistic:#b88f00;--f-non-theistic-religious:#b35c00;--f-naturalistic:#0076a8;--f-philosophical:#4f7a0f;--f-pantheistic-or-panentheistic:#7b3fa0;--f-indigenous-or-folk:#00796b;--f-other:#455a64;
  --ok:#2e8b2e;--warn:#9a6d00;--bad:#b03030;--shadow:0 -6px 24px rgba(0,0,0,.15)}}
:root[data-theme="light"]{--bg:#f6f5f0;--panel:#fff;--panel2:#f1f0ea;--ink:#1d1d24;--muted:#5a5a66;--line:#e2e0d8;--link:#dcdad2;--gold:#b88f00;--gold-ink:#fff;
  --f-theistic:#b88f00;--f-non-theistic-religious:#b35c00;--f-naturalistic:#0076a8;--f-philosophical:#4f7a0f;--f-pantheistic-or-panentheistic:#7b3fa0;--f-indigenous-or-folk:#00796b;--f-other:#455a64;
  --ok:#2e8b2e;--warn:#9a6d00;--bad:#b03030;--shadow:0 -6px 24px rgba(0,0,0,.15)}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;display:flex;flex-direction:column;height:100dvh}
a{color:var(--gold)}
h1{font-size:1.35rem;margin:0;line-height:1.25}
h2{font-size:1.15rem;margin:28px 0 8px;color:var(--gold)}
h3{font-size:1rem;margin:16px 0 6px}
.muted{color:var(--muted);font-size:.92rem}
.small{font-size:.85rem}
.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:14px 0}
button{padding:8px 14px;border-radius:8px;border:0;background:var(--gold);color:var(--gold-ink);font:inherit;font-weight:600;cursor:pointer}
button.ghost{background:var(--panel);color:var(--ink);border:1px solid var(--line)}
button.ghost:hover{border-color:var(--gold);color:var(--gold)}

/* header: the Big Four Conquest look */
header.top{display:flex;align-items:center;gap:12px 18px;flex-wrap:wrap;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;min-width:0;flex:1 1 320px}
.brand img{width:40px;height:40px;border-radius:9px;flex:none}
.tagline{line-height:1.35;font-size:.85rem}
.sitenav p{margin:0;display:flex;flex-wrap:wrap;gap:6px}
.sitenav a{font-size:.9rem;line-height:1.4;padding:5px 12px;border-radius:999px;text-decoration:none;border:1px solid var(--line);color:var(--ink)}
.sitenav a b{font-weight:600}
.sitenav a:hover{border-color:var(--gold);color:var(--gold)}
.sitenav a.active{background:var(--gold);color:var(--gold-ink);border-color:var(--gold)}
@media (max-width:560px){.tagline{display:none}h1{font-size:1.15rem}header.top{padding:8px 12px}}

main{flex:1;display:flex;flex-direction:column;min-height:0;overflow:auto}
.view[hidden]{display:none !important}
.view.column{max-width:760px;width:100%;margin:0 auto;padding:8px 16px 48px}
footer{padding:12px 16px;border-top:1px solid var(--line);font-size:.82rem}

/* the map */
.map-view{position:relative;flex:1;display:grid;grid-template-rows:auto 1fr;grid-template-columns:1fr;min-height:0;height:100%}
.toolbar{display:flex;align-items:center;gap:6px;padding:6px 10px;border-bottom:1px solid var(--line);background:var(--panel);grid-column:1/-1;min-width:0}
.toolbar button{padding:6px 10px;background:var(--panel2);color:var(--ink);border:1px solid var(--line);font-weight:600;flex:none}
.toolbar button:hover{border-color:var(--gold);color:var(--gold)}
.toolbar input{flex:1 1 120px;min-width:80px;padding:6px 10px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;font-size:.9rem}
.crumbs{flex:3 1 160px;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;color:var(--muted)}
.crumbs a{color:var(--muted);text-decoration:none;cursor:pointer}
.crumbs a:hover{color:var(--gold)}
.crumbs b{color:var(--ink);font-weight:600}
.stage{position:relative;min-height:0;overflow:hidden;background:
  radial-gradient(circle at 50% 40%,rgba(242,194,0,.06),transparent 60%),var(--bg);touch-action:none;user-select:none;-webkit-user-select:none}
#map-svg{width:100%;height:100%;display:block;cursor:grab}
#map-svg.dragging{cursor:grabbing}
.hint{position:absolute;left:0;right:0;bottom:8px;text-align:center;font-size:.78rem;color:var(--muted);pointer-events:none;opacity:1;transition:opacity .6s}
.hint.gone{opacity:0}

/* nodes: one tree, after the ITDA architecture map */
.node{cursor:pointer}
.node rect{fill:var(--panel);stroke:var(--line);stroke-width:1.2;transition:stroke .15s}
.node text{fill:var(--ink);font-size:13px;pointer-events:none;font-family:system-ui,"Segoe UI",Roboto,sans-serif}
.node.bold text{font-weight:600}
.node.root text{font-size:15px;font-weight:600}
.node.fact rect,.node.claim rect,.node.question rect,.node.branch rect,.node.criterion rect,.node.debate rect{fill:var(--bg)}
.node.hit rect{stroke:var(--gold)!important;stroke-width:2;fill:rgba(242,194,0,.12)}
.node.dim{opacity:.22}
.node.selected rect{stroke:var(--gold)!important;stroke-width:2.5!important}
.node:hover rect{stroke:var(--gold)}
.toggle{cursor:pointer}
.toggle circle{fill:var(--panel);stroke:var(--muted);stroke-width:1.2}
.toggle text{font-size:10px;fill:var(--muted);font-weight:700;pointer-events:none;font-family:system-ui,"Segoe UI",Roboto,sans-serif}
.toggle:hover circle{stroke:var(--gold)}
.toggle.open circle{stroke:var(--gold)}
.toggle.open text{fill:var(--gold)}
.node .progress{stroke:var(--gold);stroke-width:2.5;stroke-linecap:round;fill:none;transition:stroke-dashoffset 1.2s cubic-bezier(.2,.7,.2,1)}
.node .progress.track{stroke:var(--line);stroke-width:2.5}
.node.active rect{stroke:var(--gold);animation:pulse 1.6s ease-in-out infinite}
.node .spin{fill:none;stroke:var(--gold);stroke-width:1.5;stroke-dasharray:8 5;transform-origin:center;animation:spin 2.4s linear infinite;transform-box:fill-box}
@keyframes pulse{0%,100%{stroke-opacity:1;stroke-width:1.5}50%{stroke-opacity:.35;stroke-width:3}}
@keyframes spin{to{transform:rotate(360deg)}}
.link{fill:none;stroke:var(--link);stroke-width:1.5;opacity:.75}
.score{font-weight:700;font-size:11px}

/* details sheet */
.sheet{background:var(--panel);border-top:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:0}
.sheet-handle{display:none}
.sheet-body{overflow:auto;padding:12px 16px 24px;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.sheet-body h2{margin:4px 0 2px;font-size:1.15rem}
.sheet-body h4{margin:14px 0 4px;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:3px}
.sheet-body p{margin:6px 0}
.sheet-body ul{margin:4px 0;padding-left:18px}
.sheet-body li{margin:3px 0}
.kind{font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.tag{display:inline-block;font-size:.74rem;padding:1px 8px;border-radius:999px;border:1px solid var(--line);color:var(--muted);margin:0 4px 4px 0;vertical-align:middle}
.tag.ok{color:var(--ok);border-color:var(--ok)}
.tag.warn{color:var(--warn);border-color:var(--warn)}
.tag.bad{color:var(--bad);border-color:var(--bad)}
.tag.gold{color:var(--gold);border-color:var(--gold)}
.actions{display:flex;flex-wrap:wrap;gap:6px;margin:8px 0 4px}
.actions button{padding:6px 12px;font-size:.86rem}
.children{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}
.children button{background:var(--panel2);color:var(--ink);border:1px solid var(--line);padding:6px 12px;font-weight:500;font-size:.9rem;text-align:left;max-width:100%}
.children button:hover{border-color:var(--gold)}
.children button .n{color:var(--gold);font-weight:700;margin-left:4px}
.src{font-size:.88rem;margin:6px 0;padding:8px 10px;background:var(--panel2);border-radius:8px;border:1px solid var(--line);word-break:break-word}
.src a{word-break:break-all}
.quote{border-left:3px solid var(--gold);padding:4px 10px;margin:6px 0;color:var(--muted);font-style:italic}
.bar{height:8px;background:var(--line);border-radius:4px;overflow:hidden;margin:4px 0}
.bar i{display:block;height:100%;background:var(--gold);width:0;transition:width 1s cubic-bezier(.2,.7,.2,1)}
.bar i.range{background:none;border-left:2px solid var(--muted);border-right:2px solid var(--muted);position:relative;top:-8px;opacity:.8}
.prog{display:grid;grid-template-columns:1fr auto;gap:0 10px;align-items:center;padding:6px 0;border-bottom:1px solid var(--line);cursor:pointer}
.prog:hover .lbl{color:var(--gold)}
.prog .lbl{font-size:.92rem}
.prog .pct{font-size:.82rem;color:var(--muted);font-variant-numeric:tabular-nums}
.prog .bar{grid-column:1/-1;margin:2px 0 0}
.prog .steps{grid-column:1/-1;font-size:.74rem;color:var(--muted);display:flex;gap:8px;flex-wrap:wrap}
.prog .steps b{color:var(--ok);font-weight:600}
.live{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--gold);margin-right:6px;animation:blink 1.2s ease-in-out infinite;vertical-align:middle}
@keyframes blink{50%{opacity:.25}}
.pop{display:grid;grid-template-columns:1fr auto;gap:0 10px;align-items:center;padding:7px 0;border-bottom:1px solid var(--line);cursor:pointer}
.pop:hover .lbl{color:var(--gold)}
.pop .lbl{font-size:.92rem}
.pop .val{font-weight:700;color:var(--gold);font-variant-numeric:tabular-nums}
.pop .bar{grid-column:1/-1;height:10px;margin:3px 0 0}
.pop .note{grid-column:1/-1;font-size:.76rem;color:var(--muted)}
.big{font-size:2rem;font-weight:700;color:var(--gold);line-height:1.1}
.big small{font-size:.95rem;color:var(--muted);font-weight:400}
.crit{display:grid;grid-template-columns:1fr auto;gap:2px 10px;align-items:center;margin:8px 0}
.crit .lbl{font-size:.9rem}
.crit .val{font-weight:700;color:var(--gold)}
.crit .bar{grid-column:1/-1}
.crit .why{grid-column:1/-1;font-size:.88rem;color:var(--muted)}
.provenance{font-size:.8rem;color:var(--muted);margin-top:12px;border-top:1px dashed var(--line);padding-top:8px}
.fact-list{list-style:none;padding:0}
.fact-list li{padding:8px 0;border-bottom:1px solid var(--line);cursor:pointer}
.fact-list li:hover{color:var(--gold)}
.result{padding:8px 0;border-bottom:1px solid var(--line);cursor:pointer}
.result:hover{color:var(--gold)}
.result .path{font-size:.78rem;color:var(--muted)}

/* context menus: right-click or long-press a node, or the ⋯ button in the details */
.cmenu{position:fixed;z-index:50;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 28px rgba(0,0,0,.45);min-width:220px;max-width:min(94vw,360px);padding:6px;font-size:.92rem}
.cmenu[hidden]{display:none}
.cmenu h5{margin:4px 8px 6px;font-size:.74rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cmenu button{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:9px 10px;border:0;border-radius:8px;background:none;color:var(--ink);font:inherit;font-weight:500;cursor:pointer}
.cmenu button:hover,.cmenu button:focus-visible{background:var(--panel2);color:var(--gold);outline:none}
.cmenu button:disabled{opacity:.45;cursor:default;color:var(--ink)}
.cmenu button .mhint{margin-left:auto;font-size:.76rem;color:var(--muted);font-weight:400;white-space:nowrap}
.cmenu button .ico{width:18px;text-align:center;color:var(--gold);flex:none}
.cmenu .sep{height:1px;background:var(--line);margin:5px 4px}
.cmenu.bottom{left:8px;right:8px;top:auto;bottom:max(8px,env(safe-area-inset-bottom));max-width:none;max-height:72vh;overflow:auto;border-radius:16px;padding-bottom:10px}
.cmenu.bottom button{padding:12px 12px;font-size:1rem}
.menu-btn{flex:none;width:34px;height:34px;border-radius:50%;background:var(--panel2);color:var(--ink);border:1px solid var(--line);font-size:1.1rem;line-height:1;padding:0}
.menu-btn:hover{border-color:var(--gold);color:var(--gold)}
.sheet-title{display:flex;align-items:center;gap:8px}
.sheet-title>div:first-child{flex:1;min-width:0}
.toast{position:fixed;left:50%;bottom:max(16px,env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);background:var(--gold);color:var(--gold-ink);padding:8px 16px;border-radius:999px;font-weight:600;font-size:.9rem;opacity:0;transition:opacity .25s,transform .25s;z-index:60;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.node.menu-open rect{stroke:var(--gold);stroke-width:2.5}

/* leaderboard */
.rank{display:grid;grid-template-columns:34px 1fr auto;gap:4px 12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line);cursor:pointer}
.rank:hover .name{color:var(--gold)}
.rank .no{font-weight:700;color:var(--gold);font-size:1.2rem}
.rank .name{font-weight:600}
.rank .fam{font-size:.78rem;color:var(--muted)}
.rank .ov{font-weight:700;font-size:1.1rem}
.rank .bar{grid-column:2/-1}
.rank .mini{grid-column:2/-1;display:flex;gap:4px;flex-wrap:wrap}
.rank .mini span{font-size:.72rem;color:var(--muted);padding:1px 6px;border:1px solid var(--line);border-radius:999px}
.rank .mini b{color:var(--ink)}

/* desktop: side panel instead of a bottom sheet */
@media (min-width:900px){
  .map-view{grid-template-columns:1fr 400px;grid-template-rows:auto 1fr}
  .stage{grid-row:2}
  .sheet{grid-row:2;grid-column:2;border-top:0;border-left:1px solid var(--line);box-shadow:none}
}
/* phone and tablet: the sheet slides over the map */
@media (max-width:899px){
  .map-view{grid-template-rows:auto 1fr}
  .stage{grid-row:2}
  .sheet{position:absolute;left:0;right:0;bottom:0;max-height:88%;height:var(--sheet-h,42%);border-radius:16px 16px 0 0;transition:height .25s ease;z-index:3}
  .sheet.dragging{transition:none}
  .sheet.min{height:58px}
  .sheet.max{height:88%}
  .sheet-handle{display:flex;justify-content:center;padding:8px 0 2px;cursor:grab;flex:none;touch-action:none}
  .sheet-handle span{width:44px;height:5px;border-radius:3px;background:var(--line)}
  .sheet-body{padding:4px 16px 24px}
  .sheet.min .sheet-body>*:not(.sheet-title){display:none}
  .sheet-title{display:flex;align-items:center;gap:8px}
  .sheet-title h2{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:1.05rem}
  .toolbar input{flex-basis:90px}
}
@media (max-width:420px){.crumbs{display:none}}