/* ============================================================
   Power Trees — Marvel Multiverse RPG
   Palette: four-colour comic process (ink, magenta, cyan, gold)
   Type: Archivo Black (display) / Archivo (UI) / Roboto Mono (data)
   ============================================================ */

:root{
  /* light = newsprint */
  --paper:#F4F3EE;
  --panel:#FFFFFF;
  --panel-2:#FAF9F5;
  --ink:#15171E;
  --ink-soft:#565C69;
  --ink-faint:#8A909C;
  --rule:#DBD8CF;
  --rule-strong:#C4C0B4;
  --accent:#C3105C;
  --accent-soft:#FBE7EF;
  --cyan:#0A7FB8;
  --cyan-soft:#E2F0F8;
  --gold:#B98200;
  --shadow:0 1px 0 rgba(21,23,30,.06), 0 8px 24px -14px rgba(21,23,30,.35);
  --grid:rgba(21,23,30,.05);
  --dim:.3;

  --f-display:"Archivo Black","Archivo",system-ui,sans-serif;
  --f-ui:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;

  --rail-w:250px;
  --detail-w:390px;
  --top-h:58px;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --paper:#0E1117;
    --panel:#161A22;
    --panel-2:#1B2029;
    --ink:#E9E8E3;
    --ink-soft:#98A0AE;
    --ink-faint:#6C7482;
    --rule:#252B36;
    --rule-strong:#333B49;
    --accent:#FF4D90;
    --accent-soft:#33141F;
    --cyan:#3FB4E6;
    --cyan-soft:#12222C;
    --gold:#EFB93F;
    --shadow:0 1px 0 rgba(0,0,0,.4), 0 10px 28px -16px rgba(0,0,0,.8);
    --grid:rgba(233,232,227,.05);
    --dim:.24;
  }
}
:root[data-theme="dark"]{
  --paper:#0E1117;
  --panel:#161A22;
  --panel-2:#1B2029;
  --ink:#E9E8E3;
  --ink-soft:#98A0AE;
  --ink-faint:#6C7482;
  --rule:#252B36;
  --rule-strong:#333B49;
  --accent:#FF4D90;
  --accent-soft:#33141F;
  --cyan:#3FB4E6;
  --cyan-soft:#12222C;
  --gold:#EFB93F;
  --shadow:0 1px 0 rgba(0,0,0,.4), 0 10px 28px -16px rgba(0,0,0,.8);
  --grid:rgba(233,232,227,.05);
  --dim:.24;
}

*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{
  margin:0;
  font-family:var(--f-ui);
  font-size:15px;
  line-height:1.5;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow:hidden;
}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:3px}
.skip{position:absolute;left:-999px;top:0;z-index:99;background:var(--panel);padding:.6rem 1rem}
.skip:focus{left:.5rem;top:.5rem}

/* ---------- top bar ---------- */
.topbar{
  height:var(--top-h);
  display:flex;align-items:center;gap:1.25rem;
  padding:0 1rem;
  border-bottom:1px solid var(--rule);
  background:var(--panel);
  position:relative;z-index:20;
}
.brand{display:flex;align-items:center;gap:.6rem;min-width:0}
.brand-mark{
  width:24px;height:24px;flex:none;border-radius:50%;
  background:
    radial-gradient(circle at 50% 50%, var(--accent) 0 5px, transparent 5px),
    conic-gradient(var(--cyan) 0 90deg, var(--gold) 90deg 180deg, var(--accent) 180deg 270deg, var(--ink) 270deg);
  box-shadow:inset 0 0 0 2px var(--panel);
}
.brand-text{display:flex;flex-direction:column;line-height:1.05;min-width:0}
.brand-text b{font-family:var(--f-display);font-size:14px;letter-spacing:.06em}
.brand-text i{font-style:normal;font-size:10.5px;letter-spacing:.13em;text-transform:uppercase;color:var(--ink-faint);font-family:var(--f-mono)}

.search{
  flex:1;max-width:560px;position:relative;display:flex;align-items:center;
}
.search svg{position:absolute;left:11px;width:16px;height:16px;fill:none;stroke:var(--ink-faint);stroke-width:1.8}
.search input{
  width:100%;padding:.5rem 2.4rem .5rem 2.2rem;
  background:var(--panel-2);border:1px solid var(--rule);border-radius:7px;
}
.search input::placeholder{color:var(--ink-faint)}
.search kbd{
  position:absolute;right:9px;font-family:var(--f-mono);font-size:11px;color:var(--ink-faint);
  border:1px solid var(--rule);border-radius:4px;padding:0 5px;line-height:17px;
}
.topbar-actions{display:flex;align-items:center;gap:.6rem;margin-left:auto}
.segmented{display:flex;border:1px solid var(--rule);border-radius:7px;overflow:hidden}
.segmented button{
  background:var(--panel);border:0;padding:.42rem .8rem;cursor:pointer;
  font-size:13px;font-weight:600;color:var(--ink-soft);
}
.segmented button[aria-selected="true"]{background:var(--ink);color:var(--paper)}
.icon-btn{
  width:34px;height:34px;border:1px solid var(--rule);border-radius:7px;background:var(--panel);
  cursor:pointer;display:grid;place-items:center;
}
.icon-btn span{
  width:14px;height:14px;border-radius:50%;
  background:linear-gradient(90deg,var(--ink) 0 50%,transparent 50%);
  box-shadow:inset 0 0 0 1.5px var(--ink);
}

/* ---------- shell ---------- */
.shell{
  height:calc(100% - var(--top-h));
  display:grid;
  grid-template-columns:var(--rail-w) minmax(0,1fr) var(--detail-w);
  grid-template-rows:minmax(0,1fr);
  align-items:stretch;
}
.shell > *{min-height:0;overflow:hidden}

/* ---------- rail ---------- */
.rail{border-right:1px solid var(--rule);background:var(--panel);min-height:0}
.rail-scroll{height:100%;overflow-y:auto;padding:1rem .9rem 3rem}
.rail-title{
  font-family:var(--f-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-faint);margin:1.4rem 0 .5rem;font-weight:500;
}
.rail-title:first-child{margin-top:0}
.setlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:1px}
.setlist button{
  width:100%;display:flex;align-items:center;gap:.55rem;
  background:none;border:0;border-radius:6px;padding:.36rem .5rem;cursor:pointer;text-align:left;
  font-size:13.5px;
}
.setlist button:hover{background:var(--panel-2)}
.setlist button[aria-current="true"]{background:var(--ink);color:var(--paper)}
.setlist button[aria-current="true"] .n{color:var(--paper);opacity:.7}
.setlist .sw{width:3px;height:15px;border-radius:2px;flex:none;background:var(--hue,var(--rule-strong))}
.setlist .nm{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.setlist .n{font-family:var(--f-mono);font-size:11px;color:var(--ink-faint);font-variant-numeric:tabular-nums}

.filters{display:flex;flex-direction:column;gap:.9rem}
.filters fieldset{border:0;margin:0;padding:0;display:flex;flex-direction:column;gap:.35rem}
.filters legend{
  font-size:11px;color:var(--ink-soft);font-weight:600;padding:0;margin-bottom:.15rem;
}
.chipset{display:flex;flex-wrap:wrap;gap:.28rem}
.chip{
  border:1px solid var(--rule);background:var(--panel);border-radius:20px;
  padding:.15rem .55rem;font-size:12px;cursor:pointer;color:var(--ink-soft);
  font-family:var(--f-mono);
}
.chip:hover{border-color:var(--rule-strong)}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.ghost-btn{
  align-self:flex-start;background:none;border:1px solid var(--rule);border-radius:6px;
  padding:.3rem .6rem;font-size:12px;cursor:pointer;color:var(--ink-soft);
}
.ghost-btn:hover{border-color:var(--rule-strong);color:var(--ink)}
.rail-note{
  margin-top:1.6rem;font-size:11.5px;line-height:1.5;color:var(--ink-faint);
  border-top:1px solid var(--rule);padding-top:.8rem;
}
.rail-note b{color:var(--ink-soft);font-weight:600}

/* ---------- stage ---------- */
.stage{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--paper)}
.stage-head{
  display:flex;align-items:flex-start;gap:1.5rem;
  padding:.95rem 1.4rem .85rem;border-bottom:1px solid var(--rule);
}
.stage-head h1{
  font-family:var(--f-display);font-size:22px;line-height:1.1;margin:0 0 .25rem;
  letter-spacing:-.01em;text-wrap:balance;
}
.blurb{
  margin:0;font-size:12.5px;line-height:1.5;color:var(--ink-soft);
  max-width:70ch;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  cursor:pointer;
}
.blurb.open{-webkit-line-clamp:unset;max-height:34vh;overflow:auto}
.stage-tools{margin-left:auto;display:flex;align-items:center;gap:.7rem;flex:none}
.count{font-family:var(--f-mono);font-size:11px;color:var(--ink-faint);white-space:nowrap;font-variant-numeric:tabular-nums}
.zoom{display:flex;border:1px solid var(--rule);border-radius:7px;overflow:hidden}
.zoom button{
  background:var(--panel);border:0;padding:.3rem .6rem;cursor:pointer;font-size:12.5px;
  color:var(--ink-soft);border-right:1px solid var(--rule);
}
.zoom button:last-child{border-right:0}
.zoom button:hover{background:var(--panel-2);color:var(--ink)}

/* ---------- tree ---------- */
.tree{
  position:relative;flex:1;min-height:0;overflow:hidden;
  background-image:radial-gradient(var(--grid) 1px, transparent 1px);
  background-size:22px 22px;
  cursor:grab;touch-action:none;
}
.tree.dragging{cursor:grabbing}
.tiers{position:absolute;inset:0;pointer-events:none;z-index:1;overflow:hidden}
.tier-label{
  position:absolute;padding:.12rem 0 .3rem;
  font-family:var(--f-mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--ink-faint);border-bottom:1px dashed var(--rule);
  white-space:nowrap;overflow:hidden;
}
.canvas{position:absolute;top:0;left:0;transform-origin:0 0;z-index:2}
.edges{position:absolute;top:0;left:0;overflow:visible;pointer-events:none}
.edges path{fill:none;stroke:var(--rule-strong);stroke-width:1.4}
.edges path.any{stroke-dasharray:4 3}
.edges path.on{stroke:var(--accent);stroke-width:2.2}
.edges path.down{stroke:var(--cyan);stroke-width:2}
.edges.focused path:not(.on):not(.down){opacity:var(--dim)}
.nodes{position:absolute;top:0;left:0}

.node{
  position:absolute;width:158px;
  background:var(--panel);border:1px solid var(--rule-strong);border-radius:6px;
  padding:.4rem .5rem .42rem;cursor:pointer;text-align:left;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:.18rem;
  border-left:3px solid var(--hue,var(--rule-strong));
}
.node:hover{border-color:var(--ink-soft)}
.node .nname{font-size:12.5px;font-weight:600;line-height:1.22;text-wrap:balance}
.node .nmeta{
  font-family:var(--f-mono);font-size:9.5px;letter-spacing:.06em;color:var(--ink-faint);
  display:flex;gap:.4rem;text-transform:uppercase;
}
.node.ghost{opacity:.85;border-style:dashed;background:var(--panel-2)}
.node.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent), var(--shadow)}
.node.on{border-color:var(--accent)}
.node.down{border-color:var(--cyan)}
.node.hit{background:var(--accent-soft)}
.nodes.focused .node:not(.on):not(.down):not(.sel){opacity:var(--dim)}
.hint{
  position:absolute;left:0;right:0;bottom:0;margin:0;padding:.4rem 1rem;
  font-size:11px;color:var(--ink-faint);text-align:center;
  background:linear-gradient(to top, var(--paper) 55%, transparent);
  pointer-events:none;z-index:3;
}

/* ---------- list ---------- */
.list{flex:1;min-height:0;overflow-y:auto;padding:1.2rem 1.4rem 4rem;display:grid;gap:.7rem;
  grid-template-columns:repeat(auto-fill,minmax(300px,1fr));align-content:start}
.card{
  background:var(--panel);border:1px solid var(--rule);border-left:3px solid var(--hue,var(--rule-strong));
  border-radius:7px;padding:.7rem .85rem;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:.3rem;
}
.card:hover{border-color:var(--rule-strong);box-shadow:var(--shadow)}
.card.sel{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}
.card h3{margin:0;font-size:14.5px;font-weight:700;line-height:1.2}
.card .tag{font-size:12px;color:var(--ink-soft);line-height:1.4}
.card .row{
  display:flex;flex-wrap:wrap;gap:.3rem .5rem;font-family:var(--f-mono);font-size:10px;
  text-transform:uppercase;letter-spacing:.06em;color:var(--ink-faint);
}
.empty{grid-column:1/-1;color:var(--ink-faint);font-size:13px;padding:2rem 0;text-align:center}

/* ---------- detail ---------- */
.detail{
  border-left:1px solid var(--rule);background:var(--panel);
  overflow-y:auto;min-height:0;
}
.detail-empty{padding:2.5rem 1.4rem;color:var(--ink-faint);font-size:13px}
.d-head{padding:1.2rem 1.3rem 1rem;border-bottom:1px solid var(--rule)}
.d-head h2{font-family:var(--f-display);font-size:21px;line-height:1.12;margin:0 0 .3rem;text-wrap:balance}
.d-head .tag{margin:0 0 .6rem;font-size:13px;color:var(--ink-soft);line-height:1.45}
.d-chips{display:flex;flex-wrap:wrap;gap:.3rem}
.pill{
  font-family:var(--f-mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
  border:1px solid var(--rule-strong);border-radius:20px;padding:.1rem .5rem;color:var(--ink-soft);
}
.pill.set{border-color:var(--hue,var(--rule-strong));color:var(--hue,var(--ink-soft))}
.pill.rank{border-color:var(--accent);color:var(--accent)}
.pill.page{border-style:dashed}

.d-body{padding:1rem 1.3rem 3rem;display:flex;flex-direction:column;gap:1.1rem}
.d-grid{display:grid;grid-template-columns:auto 1fr;gap:.35rem .8rem;font-size:13px;align-items:baseline}
.d-grid dt{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink-faint);padding-top:.15rem;
}
.d-grid dd{margin:0}
.d-sec h3{
  font-family:var(--f-mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-faint);margin:0 0 .45rem;font-weight:500;
}
.d-sec p{margin:0 0 .6rem;font-size:14px;line-height:1.6}
.d-sec p:last-child{margin-bottom:0}
.linkchips{display:flex;flex-wrap:wrap;gap:.3rem}
.linkchip{
  border:1px solid var(--rule);background:var(--panel-2);border-radius:5px;
  padding:.2rem .5rem;font-size:12.5px;cursor:pointer;text-align:left;
}
.linkchip:hover{border-color:var(--accent);color:var(--accent)}
.linkchip .r{font-family:var(--f-mono);font-size:10px;color:var(--ink-faint);margin-left:.35rem}
.chain{display:flex;flex-direction:column;gap:.3rem}
.chain-row{display:flex;align-items:center;gap:.5rem}
.chain-row .lvl{
  font-family:var(--f-mono);font-size:9.5px;color:var(--ink-faint);width:1.6rem;flex:none;text-align:right;
}
.note{font-size:12px;color:var(--ink-faint);line-height:1.5}

/* ---------- responsive ---------- */
@media (max-width:1200px){
  :root{--detail-w:340px;--rail-w:214px}
}
@media (max-width:980px){
  .shell{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}
  .detail{overflow-y:auto}
  .rail{border-right:0;border-bottom:1px solid var(--rule);max-height:34vh}
  .detail{
    position:fixed;inset:auto 0 0 0;height:64vh;z-index:40;
    border-left:0;border-top:1px solid var(--rule);
    border-radius:12px 12px 0 0;box-shadow:0 -8px 40px -20px rgba(0,0,0,.7);
    transform:translateY(101%);transition:transform .22s ease;
  }
  .detail.open{transform:none}
  .detail-empty{display:none}
  .search kbd{display:none}
}
@media (max-width:700px){
  :root{--top-h:104px}
  .topbar{flex-wrap:wrap;height:auto;min-height:var(--top-h);align-content:center;padding:.55rem .8rem;gap:.5rem .8rem}
  .brand{order:1}
  .topbar-actions{order:2;margin-left:auto}
  .search{order:3;flex:1 0 100%;max-width:none}
  .rail{max-height:30vh}
  .stage-head{padding:.8rem 1rem}
  .stage-head h1{font-size:19px}
  .list{padding:.9rem 1rem 5rem;grid-template-columns:1fr}
  .d-head,.d-body{padding-left:1rem;padding-right:1rem}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}