:root{
  --bg:#05060c;
  --panel:rgba(18,20,32,0.72);
  --panel-solid:#0d0f18;
  --stroke:rgba(255,255,255,0.09);
  --stroke-strong:rgba(255,255,255,0.20);
  --ink:#eef0f7;
  --ink-dim:#9aa0b4;
  --ink-faint:#646a82;
  --ink-desc:#cfd3e2;
  --ink-card-desc:#cbd0e0;
  --active-ink:#0b0c12;
  --accent-ink:#08121a;
  --top-bg:rgba(5,6,12,0.82);
  --bar-bg:rgba(5,6,12,0.7);
  --hover-soft:rgba(255,255,255,.05);
  --hover-faint:rgba(255,255,255,.03);
  --l1:#ff7a66; --l2:#c77dff; --l3:#34d5c5; --l4:#ffc857;
  --ok:#5fd38a; --otc:#5aa9ff; --exp:#ffc857;
  --display:"Space Grotesk",system-ui,-apple-system,sans-serif;
  --body:"Inter",system-ui,-apple-system,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
}
:root[data-theme="light"]{
  --bg:#fdfdfa;
  --panel:rgba(246,244,237,0.78);
  --panel-solid:#ece9df;
  --stroke:rgba(42,48,62,0.14);
  --stroke-strong:rgba(42,48,62,0.26);
  --ink:#242936;
  --ink-dim:#606675;
  --ink-faint:#8a8f9b;
  --ink-desc:#3f4656;
  --ink-card-desc:#465062;
  --active-ink:#fdfdfa;
  --accent-ink:#10151e;
  --top-bg:rgba(253,253,250,0.88);
  --bar-bg:rgba(253,253,250,0.74);
  --hover-soft:rgba(36,41,54,.07);
  --hover-faint:rgba(36,41,54,.035);
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);-webkit-font-smoothing:antialiased}
body{min-height:100vh}
button{font-family:inherit}

/* ---------- header ---------- */
.top{
  position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  padding:12px 20px;background:var(--top-bg);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--stroke);
}
.brand{font-family:var(--display);font-weight:600;font-size:16px}
.tabs{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap}
.tab{
  font-family:var(--mono);font-size:12px;letter-spacing:.03em;color:var(--ink-dim);
  background:var(--panel);border:1px solid var(--stroke);border-radius:9px;padding:8px 13px;cursor:pointer;transition:.15s;
}
.tab:hover{color:var(--ink);border-color:var(--stroke-strong)}
.tab.on{color:var(--bg);background:var(--ink);border-color:var(--ink);font-weight:600}
.theme-toggle{
  font-family:var(--mono);font-size:12px;letter-spacing:.03em;color:var(--ink-dim);
  background:var(--panel);border:1px solid var(--stroke);border-radius:9px;padding:8px 13px;
  cursor:pointer;transition:.15s;white-space:nowrap;
}
.theme-toggle:hover{color:var(--ink);border-color:var(--stroke-strong)}
.link3d{color:var(--ink-faint);font-size:12px;text-decoration:none;font-family:var(--mono)}
.link3d:hover{color:var(--l4)}

/* ---------- views ---------- */
#stage{max-width:1180px;margin:0 auto;padding:22px 20px 80px}
.view{display:none}
.view.on{display:block}
/* 3D map lives full-bleed below the header (top offset set in JS) */
#view-three{position:fixed;left:0;right:0;bottom:0;top:56px;z-index:5;background:var(--bg)}
#view-three iframe{width:100%;height:100%;border:0;display:block}
#boot{position:fixed;inset:0;display:grid;place-items:center;font-family:var(--mono);color:var(--ink-faint);letter-spacing:.2em;text-transform:uppercase;font-size:12px;background:var(--bg);z-index:40}
#boot.gone{opacity:0;pointer-events:none;transition:opacity .4s}

.field{display:flex;flex-direction:column;gap:7px;margin-bottom:6px}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint)}
select.select,input.text{
  font-family:var(--body);font-size:15px;color:var(--ink);background:var(--panel-solid);
  border:1px solid var(--stroke-strong);border-radius:11px;padding:12px 14px;min-width:260px;max-width:100%;
}
select.select{cursor:pointer;width:100%}
select.select[multiple]{min-height:178px}

/* ---------- shared node card / chip ---------- */
.pill{display:inline-block;font-family:var(--mono);font-size:9.5px;letter-spacing:.08em;text-transform:uppercase;
  padding:3px 7px;border-radius:999px;color:var(--accent-ink);background:var(--p,#ffc857);font-weight:600;white-space:nowrap}
.dot{width:11px;height:11px;border-radius:50%;flex:none;background:var(--c,#fff);color:var(--c,#fff);box-shadow:0 0 9px 0 currentColor}

/* ---------- PATHWAY ---------- */
.pathway-layout{display:grid;grid-template-columns:minmax(240px,320px) minmax(0,1fr);gap:22px;align-items:start}
.symptom-picker{position:sticky;top:74px;max-height:calc(100vh - 104px);overflow:hidden;display:flex;flex-direction:column}
.picker-title{font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 9px}
.symptom-list{display:flex;flex-direction:column;gap:6px;overflow-y:auto;padding-right:4px}
.symptom-choice{
  display:flex;align-items:center;gap:9px;width:100%;min-height:38px;padding:9px 10px;
  border:1px solid var(--stroke);border-radius:9px;background:var(--panel);color:var(--ink-dim);
  cursor:pointer;user-select:none;font-size:13px;transition:.12s;
}
.symptom-choice:hover{color:var(--ink);border-color:var(--stroke-strong);background:var(--hover-soft)}
.symptom-choice.on{color:var(--bg);background:var(--ink);border-color:var(--ink);font-weight:600}
.symptom-choice input{position:absolute;opacity:0;pointer-events:none}
.checkmark{width:14px;height:14px;border-radius:4px;border:1px solid var(--stroke-strong);display:grid;place-items:center;flex:none;background:var(--panel-solid)}
.checkmark::after{content:"";width:6px;height:3px;border-left:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(-45deg);opacity:0}
.symptom-choice.on .checkmark{background:var(--bg);border-color:var(--bg);color:var(--ink)}
.symptom-choice.on .checkmark::after{opacity:1}
.choice-label{line-height:1.25}
.empty-pathway{border:1px solid var(--stroke);border-radius:12px;background:var(--panel);color:var(--ink-faint);padding:18px;font-size:13px}
.band{margin:0}
.band-title{font-family:var(--mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 10px}
.band-row{display:flex;flex-wrap:wrap;gap:10px}
.flow-arrow{color:var(--ink-faint);text-align:center;font-size:20px;margin:12px 0;opacity:.6}
.tgroup{margin:0 0 14px}
.tgroup:last-child{margin-bottom:0}
.tgroup-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;margin:0 0 8px;font-weight:600}
.card{
  border:1px solid var(--stroke);border-radius:12px;
  background:var(--panel);min-width:200px;max-width:340px;flex:1 1 240px;overflow:hidden;
}
.card.selected{border-color:var(--c);box-shadow:0 0 0 1px var(--c) inset}
.card-head{
  width:100%;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:none;border:0;color:var(--ink);text-align:left;cursor:pointer;padding:13px 14px;
}
.card-head:hover{background:var(--hover-faint)}
.card-lbl{font-size:14.5px;font-weight:600;letter-spacing:-.005em}
.card-head .cat{font-size:11px;color:var(--ink-faint);width:100%}
.card-desc{padding:0 14px 14px;color:var(--ink-card-desc);font-size:13px;line-height:1.55}

/* ---------- FLOW MAP ---------- */
.flow-board{position:relative}
.flow-svg{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}
.flow-svg .edge{fill:none;stroke:var(--l4);stroke-width:1.6;opacity:.85;stroke-linecap:round}
.flow-cols{display:grid;grid-template-columns:repeat(4,minmax(190px,1fr));gap:14px;position:relative;z-index:2}
.flow-col{min-width:0}
.flow-col-h{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-dim);
  padding:6px 8px;margin-bottom:8px;border-bottom:1px solid var(--stroke);position:sticky;top:0}
.flow-list{max-height:64vh;overflow-y:auto;display:flex;flex-direction:column;gap:6px;padding-right:4px}
.fchip2{
  display:flex;align-items:center;gap:8px;width:100%;text-align:left;cursor:pointer;
  background:var(--panel);border:1px solid var(--stroke);border-radius:9px;
  padding:9px 11px;color:var(--ink-dim);font-size:13px;transition:.12s;
}
.fchip2:hover{color:var(--ink);border-color:var(--stroke-strong)}
.fchip2.on{background:var(--c);color:var(--accent-ink);font-weight:600;border-color:var(--c)}
.fchip2.near{border-color:var(--c);color:var(--ink)}
.fchip2.dim{opacity:.28}

/* ---------- EXPLORER (columns) ---------- */
.col-bar{margin-bottom:16px;position:relative}
.ac{position:absolute;left:0;right:0;top:calc(100% + 6px);background:var(--panel-solid);border:1px solid var(--stroke-strong);
  border-radius:11px;z-index:8;overflow:hidden;max-height:320px;overflow-y:auto}
.ac button{display:flex;align-items:center;gap:9px;width:100%;text-align:left;background:none;border:0;border-bottom:1px solid var(--stroke);
  color:var(--ink);padding:10px 13px;cursor:pointer;font-size:13.5px}
.ac button:hover{background:var(--hover-soft)}
.explorer{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:14px;align-items:start}
.ex-col{background:var(--panel);border:1px solid var(--stroke);border-radius:14px;padding:14px;min-height:120px;max-height:70vh;overflow-y:auto}
.ex-mid{background:var(--panel-solid)}
.ex-cap{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 10px}
.ex-h{font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint);margin:14px 0 7px}
.ex-h:first-child{margin-top:0}
.nb{display:flex;align-items:center;gap:9px;width:100%;text-align:left;cursor:pointer;margin:5px 0;
  background:none;border:1px solid var(--stroke);border-radius:9px;padding:9px 11px;color:var(--ink);font-size:13px;transition:.12s}
.nb:hover{border-color:var(--stroke-strong);background:var(--hover-soft)}
.ex-mid .tier{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;display:flex;align-items:center;gap:8px;color:var(--ink-dim)}
.ex-mid h2{font-family:var(--display);font-size:21px;margin:11px 0 12px;line-height:1.15}
.ex-mid .desc{font-size:14px;line-height:1.6;color:var(--ink-desc)}
.ex-mid .prev{margin-top:14px}
.back{font-family:var(--mono);font-size:11px;color:var(--ink-dim);background:var(--panel);border:1px solid var(--stroke);
  border-radius:8px;padding:7px 11px;cursor:pointer;margin-bottom:12px}
.back:hover{color:var(--ink);border-color:var(--stroke-strong)}
.back[disabled]{opacity:.4;cursor:default}

/* ---------- TABLE ---------- */
.tbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.seg{display:flex;gap:4px;background:var(--panel);border:1px solid var(--stroke);border-radius:10px;padding:3px}
.seg button{font-family:var(--mono);font-size:11px;color:var(--ink-dim);background:none;border:0;border-radius:7px;padding:7px 11px;cursor:pointer}
.seg button.on{background:var(--ink);color:var(--bg);font-weight:600}
.count{color:var(--ink-faint);font-size:12px;margin-left:auto}
.twrap{overflow-x:auto;border:1px solid var(--stroke);border-radius:14px}
table{border-collapse:collapse;width:100%;min-width:640px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--stroke);font-size:13.5px;vertical-align:top}
th{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-dim);cursor:pointer;
  position:sticky;top:0;background:var(--panel-solid);user-select:none;white-space:nowrap}
th:hover{color:var(--ink)}
th .ar{opacity:.5;font-size:10px;margin-left:4px}
tbody tr:hover{background:var(--hover-faint)}
td.name{font-weight:600;color:var(--ink)}
td .treat{color:var(--ink-dim);font-size:12.5px;line-height:1.5}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:11px;color:var(--ink-dim)}
.tag .swatch{width:9px;height:9px;border-radius:50%}

@media (max-width:820px){
  .pathway-layout{grid-template-columns:1fr}
  .symptom-picker{position:relative;top:auto;max-height:none}
  .symptom-list{max-height:280px}
  .flow-cols{grid-template-columns:repeat(4,minmax(160px,1fr))}
  .flow-board{overflow-x:auto}
  .flow-cols{min-width:680px}
  .explorer{grid-template-columns:1fr}
  .ex-col{max-height:none}
}