:root{
  --bg:#10151c; --steel:#1a222d; --steel2:#222c39; --edge:#2e3b4c; --text:#e8eef6; --muted:#8ea0b5;
  --bolt:#ffc23d; --bolt2:#ff8a1f; --core:#3fd8ff; --chip:#b689ff; --ok:#4ee07a; --bad:#ff5a5a; --hazard:#f5b301;
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px);
  font-family: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);overflow:hidden;overscroll-behavior:none;
  -webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:manipulation}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;touch-action:manipulation}
.hidden{display:none!important}
#app{position:fixed;inset:0;display:flex;flex-direction:column;max-width:560px;margin:0 auto;
  background:linear-gradient(#141b24,#0e1218)}
/* HUD */
#hud{padding:calc(var(--sat) + 8px) 14px 8px;display:flex;justify-content:space-between;align-items:flex-start;gap:8px;
  background:linear-gradient(#1b2430,#141b24);border-bottom:2px solid #000;box-shadow:0 2px 0 #2a3646 inset,0 4px 14px #0008;z-index:5;position:relative}
#hud:after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:4px;
  background:repeating-linear-gradient(-45deg,var(--hazard) 0 10px,#1a1a1a 10px 20px);opacity:.9}
.hud-bolts{font-size:30px;font-weight:800;letter-spacing:.5px;display:flex;align-items:center;gap:8px;text-shadow:0 2px 0 #0008}
.hud-rate{color:var(--muted);font-size:13px;font-weight:600;margin-top:2px}
.grid-warn{color:#ffd84a;margin-left:6px;font-weight:800;animation:flick 1.2s infinite}
@keyframes flick{0%,100%{opacity:1}50%{opacity:.4}}
.hud-pills{display:flex;flex-direction:column;align-items:flex-end;gap:5px}
.pill{background:#0c1117;border:1px solid var(--edge);border-radius:999px;padding:3px 10px 3px 6px;font-weight:800;font-size:14px;display:flex;align-items:center;gap:6px}
.pill.core{color:var(--core)} .pill.chip{color:var(--chip)} .pill.chal{color:#ff9d5c;font-size:12px}
/* currency glyphs */
.cur{display:inline-block;width:14px;height:14px;flex:none;vertical-align:-2px}
.cur.big{width:24px;height:24px}
.cur.bolt{background:radial-gradient(circle at 50% 50%,#3a2a05 0 22%,transparent 24%),linear-gradient(135deg,#ffe27a,var(--bolt) 45%,var(--bolt2));
  clip-path:polygon(25% 5%,75% 5%,100% 50%,75% 95%,25% 95%,0 50%)}
.cur.core{border-radius:50%;background:radial-gradient(circle at 40% 35%,#fff 0 12%,var(--core) 35%,#0a6f8f 75%);box-shadow:0 0 8px var(--core)}
.cur.chip{border-radius:3px;background:linear-gradient(135deg,#e3d0ff,var(--chip) 50%,#5b2fb0);box-shadow:0 0 0 2px #0000,0 0 7px var(--chip);
  outline:2px dotted #d9c2ff;outline-offset:1px;transform:scale(.8)}
/* Scene */
#scene{position:relative;height:31vh;min-height:190px;max-height:290px;flex:none;overflow:hidden;cursor:pointer;
  border-bottom:3px solid #000;box-shadow:0 3px 0 #2a3646}
#fx{width:100%;height:100%;display:block}
#pops{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.pop{position:absolute;font-weight:900;font-size:18px;color:#ffe27a;text-shadow:0 2px 0 #000,0 0 8px #ff9b2a88;white-space:nowrap;
  animation:pop .9s ease-out forwards;transform:translate(-50%,-50%)}
.pop.crit{font-size:26px;color:#fff;text-shadow:0 2px 0 #000,0 0 12px #ff3b3b}
.pop.core{color:var(--core)}
@keyframes pop{0%{opacity:0;transform:translate(-50%,-30%) scale(.6)}15%{opacity:1;transform:translate(-50%,-60%) scale(1.15)}100%{opacity:0;transform:translate(-50%,-260%) scale(1)}}
#tapHint{position:absolute;left:50%;top:12px;transform:translateX(-50%);background:#000b;border:2px solid var(--hazard);color:#fff;
  padding:6px 12px;border-radius:12px;font-weight:800;font-size:14px;pointer-events:none;animation:bob 1.2s ease-in-out infinite;white-space:nowrap}
@keyframes bob{50%{transform:translate(-50%,4px)}}
/* Panels */
#panels{flex:1;position:relative;overflow:hidden}
.panel{position:absolute;inset:0;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:12px 12px 20px;display:none}
.panel.active{display:block}
.panel.tree-panel{padding:0;overflow:hidden}
.tree-panel.active{display:flex;flex-direction:column}
.tree-panel .panel-head{padding:10px 12px 6px}
.panel-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
h2{margin:0;font-size:18px;letter-spacing:1px;text-transform:uppercase;color:#cfd9e6}
h3{margin:0 0 6px;font-size:15px;letter-spacing:.5px}
.sub{color:var(--muted);font-size:13px;font-weight:700}
.muted{color:var(--muted)}
.note{font-size:12px;color:var(--muted);margin:-2px 2px 8px}
.note b{color:#ffd84a}
.seg{display:flex;background:#0b1015;border:1px solid var(--edge);border-radius:12px;padding:3px;gap:3px}
.seg button{flex:1;padding:8px 6px;border-radius:9px;font-weight:800;font-size:13px;color:var(--muted)}
.seg button.on{background:linear-gradient(#34465c,#263446);color:#fff;box-shadow:0 1px 0 #4b6380 inset}
.seg.small button{padding:6px 12px}
.seg.wide{margin-bottom:10px}
.sub-pane{display:none}.sub-pane.on{display:block}
#tab-reb.active,#tab-asc.active{display:flex;flex-direction:column}
#tab-reb .sub-pane.on,#tab-asc .sub-pane.on{overflow-y:auto;flex:1}
.tree-pane.on{display:flex!important;flex-direction:column;margin:0 -12px -20px;overflow:hidden!important}
/* Cards & rows */
.card{background:linear-gradient(var(--steel2),var(--steel));border:1px solid var(--edge);border-radius:14px;padding:12px;margin-bottom:10px;
  box-shadow:0 2px 0 #0007,0 1px 0 #3a4a5e inset;position:relative}
.card.rivets:before,.card.rivets:after{content:"";position:absolute;top:7px;width:6px;height:6px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#8da2bb,#3b4a5c)}
.card.rivets:before{left:7px}.card.rivets:after{right:7px}
.bot{display:flex;align-items:center;gap:10px;padding:10px;margin-bottom:8px}
.bot .ic{width:50px;height:50px;border-radius:12px;display:grid;place-items:center;font-size:28px;flex:none;
  background:radial-gradient(circle at 40% 30%,#3c4f66,#1a2230);border:1px solid #445a75;box-shadow:0 2px 0 #0008}
.bot .info{flex:1;min-width:0}
.bot .nm{font-weight:800;font-size:15px;display:flex;gap:6px;align-items:baseline}
.bot .nm small{color:var(--muted);font-weight:700;font-size:12px}
.bot .ln{font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bar{height:5px;background:#0b0f14;border-radius:3px;margin-top:5px;overflow:hidden}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--bolt2),var(--bolt));border-radius:3px;transition:width .2s}
.bar.core i{background:linear-gradient(90deg,#1789b0,var(--core))}
.bar.chip i{background:linear-gradient(90deg,#6a3bc4,var(--chip))}
.buy{min-width:94px;padding:8px 8px;border-radius:12px;font-weight:900;font-size:14px;line-height:1.1;
  background:linear-gradient(#ffd25a,#f29a17);color:#2b1700;box-shadow:0 3px 0 #9a5a00,0 1px 0 #fff8 inset;display:flex;flex-direction:column;align-items:center}
.buy small{font-size:10px;font-weight:800;opacity:.75}
.buy:active{transform:translateY(2px);box-shadow:0 1px 0 #9a5a00}
.buy.no{background:linear-gradient(#3a4656,#2b3542);color:#8796a8;box-shadow:0 3px 0 #11161d}
.bot.locked{opacity:.55}
.bot.locked .ic{filter:grayscale(1)}
.btn{padding:10px 14px;border-radius:12px;background:linear-gradient(#3a4c63,#2a374a);font-weight:800;box-shadow:0 3px 0 #0d1218;flex:1}
.btn:active{transform:translateY(2px);box-shadow:0 1px 0 #0d1218}
.btn.danger{background:linear-gradient(#7a2a2a,#5a1c1c)}
.btn-row{display:flex;gap:8px;margin-top:8px}
.big-btn{width:100%;padding:16px 12px;border-radius:16px;font-size:20px;font-weight:900;letter-spacing:.5px;margin:6px 0 4px;
  display:flex;flex-direction:column;align-items:center;gap:2px}
.big-btn small{font-size:13px;font-weight:800;opacity:.85}
.big-btn.reb{background:linear-gradient(#5ee7ff,#169bd0);color:#032433;box-shadow:0 5px 0 #0b5a7a,0 1px 0 #fff9 inset}
.big-btn.asc{background:linear-gradient(#d3b3ff,#8a4ff0);color:#1d0742;box-shadow:0 5px 0 #4b2394,0 1px 0 #fff9 inset}
.big-btn:active{transform:translateY(3px)}
.big-btn.off{filter:grayscale(.85) brightness(.6)}
.kv{display:flex;justify-content:space-between;font-size:14px;padding:4px 0;border-bottom:1px dashed #2c3848}
.kv:last-child{border:0}.kv b{font-weight:800}
.ms{display:flex;gap:10px;align-items:center;padding:8px 10px;margin-bottom:6px;border-radius:12px;background:#151c25;border:1px solid #263243;font-size:14px}
.ms .n{min-width:46px;text-align:center;font-weight:900;border-radius:8px;padding:4px 6px;background:#0c1117;color:var(--muted)}
.ms.got{border-color:#2d6a49;background:#13241c}.ms.got .n{background:#1f6b43;color:#fff}
.ms.chip.got{border-color:#5b3a95;background:#1c1530}.ms.chip.got .n{background:#6a3bc4}
.toggle{display:flex;align-items:center;justify-content:space-between;padding:8px 0;font-weight:700;font-size:14px}
.sw{width:48px;height:28px;border-radius:14px;background:#0b0f14;border:1px solid var(--edge);position:relative;flex:none}
.sw:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:#56657a;transition:.15s}
.sw.on{background:#1f6b43}.sw.on:after{left:23px;background:#fff}
select{background:#0b0f14;color:#fff;border:1px solid var(--edge);border-radius:8px;padding:5px 8px;font:inherit;font-weight:700}
.chal{padding:12px}
.chal .t{display:flex;justify-content:space-between;align-items:center;font-weight:900;font-size:16px}
.chal p{margin:6px 0;font-size:13px;color:#c4cfdc}
.chal .done{color:var(--ok);font-weight:900}
.tag{font-size:11px;font-weight:900;padding:2px 7px;border-radius:6px;background:#0c1117;color:var(--muted)}
/* Tree */
.treeview{flex:1;position:relative;overflow:hidden;touch-action:none;
  background-color:#0d2338;background-image:linear-gradient(#ffffff10 1px,transparent 1px),linear-gradient(90deg,#ffffff10 1px,transparent 1px),
  linear-gradient(#ffffff06 1px,transparent 1px),linear-gradient(90deg,#ffffff06 1px,transparent 1px);
  background-size:84px 84px,84px 84px,21px 21px,21px 21px;border-top:1px solid #1f4466}
.treeview[data-tree=core]{background-color:#0a2630}
.treeview[data-tree=chip]{background-color:#1b1233}
.tworld{position:absolute;left:0;top:0;transform-origin:0 0}
.tworld svg{position:absolute;left:0;top:0;overflow:visible;pointer-events:none}
.tnode{position:absolute;width:64px;height:64px;margin:-32px 0 0 -32px;border-radius:16px;display:grid;place-items:center;font-size:28px;
  background:#0f1c2a;border:2px dashed #3a5a7a;color:#7f9ab6;transition:transform .1s}
.tnode .lbl{position:absolute;top:66px;left:50%;transform:translateX(-50%);font-size:10.5px;font-weight:800;white-space:nowrap;color:#cfe3ff;
  text-shadow:0 1px 2px #000;display:flex;align-items:center;gap:3px}
.tnode .lbl .cur{width:10px;height:10px}
.tnode .lv{position:absolute;top:-8px;right:-8px;background:#000;border:1px solid #5a7a9a;border-radius:8px;font-size:10px;font-weight:900;padding:1px 5px;color:#fff}
.tnode.locked{opacity:.45;filter:grayscale(1)}
.tnode.locked:after{content:"🔒";position:absolute;font-size:13px;bottom:-4px;right:-4px}
.tnode.avail{border:2px solid #6fa8d8;background:#163049;color:#fff}
.tnode.afford{border-color:var(--bolt);box-shadow:0 0 0 3px #ffc23d33,0 0 16px #ffc23d88;animation:glow 1.4s ease-in-out infinite}
[data-tree=core] .tnode.afford{border-color:var(--core);box-shadow:0 0 0 3px #3fd8ff33,0 0 16px #3fd8ff88}
[data-tree=chip] .tnode.afford{border-color:var(--chip);box-shadow:0 0 0 3px #b689ff33,0 0 16px #b689ff88}
@keyframes glow{50%{transform:scale(1.06)}}
.tnode.bought{border:2px solid #9fe8ff;background:radial-gradient(circle at 40% 30%,#3d7fb4,#1b456b);color:#fff;box-shadow:0 0 12px #5ec8ff66}
[data-tree=core] .tnode.bought{background:radial-gradient(circle at 40% 30%,#2fb3c9,#0e5262)}
[data-tree=chip] .tnode.bought{background:radial-gradient(circle at 40% 30%,#8d5be0,#3b1f74);border-color:#e0ccff}
.tnode.bought .lbl{color:#9fe8ff}
.tnode.sel{outline:3px solid #fff;outline-offset:3px}
.tctl{position:absolute;right:10px;bottom:10px;display:flex;flex-direction:column;gap:6px;z-index:2}
.tctl button{width:40px;height:40px;border-radius:12px;background:#000a;border:1px solid #ffffff30;font-size:20px;font-weight:900}
.tbuyall{position:absolute;left:10px;bottom:10px;z-index:2;padding:9px 12px;border-radius:12px;background:#000a;border:1px solid #ffffff30;font-weight:800;font-size:13px}
/* Sheet / modal */
.sheet{position:absolute;left:0;right:0;bottom:0;z-index:20;padding:0 10px calc(var(--sab) + 72px);pointer-events:none}
.sheet-card{pointer-events:auto;background:linear-gradient(#26313f,#1a222d);border:1px solid #3d4f66;border-radius:18px;padding:14px;box-shadow:0 -6px 30px #000a;
  animation:up .18s ease-out}
@keyframes up{from{transform:translateY(30px);opacity:0}}
.sheet-card .hd{display:flex;gap:12px;align-items:center}
.sheet-card .hd .ic{font-size:34px;width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:#0e1620;border:1px solid #33465e}
.sheet-card .hd b{font-size:18px}
.sheet-card p{margin:10px 0;font-size:14px;color:#d0dbe8;line-height:1.35}
.sheet-card .x{position:absolute;right:20px;margin-top:-4px;font-size:22px;color:var(--muted)}
.modal{position:absolute;inset:0;z-index:30;background:#000b;display:grid;place-items:center;padding:20px}
.modal-card{width:100%;max-width:380px;background:linear-gradient(#26313f,#1a222d);border:1px solid #3d4f66;border-radius:18px;padding:18px;text-align:center;animation:up .2s}
.modal-card h3{font-size:20px}.modal-card p{color:#cfd9e6;font-size:14px;line-height:1.4}
.modal-card textarea{width:100%;height:90px;background:#0b0f14;color:#fff;border:1px solid var(--edge);border-radius:10px;font-size:11px;-webkit-user-select:text;user-select:text}
#toasts{position:absolute;left:0;right:0;top:calc(var(--sat) + 70px);z-index:40;display:flex;flex-direction:column;align-items:center;gap:6px;pointer-events:none}
.toast{background:#0d141cf0;border:1px solid var(--hazard);border-radius:12px;padding:8px 14px;font-weight:800;font-size:14px;max-width:90%;text-align:center;
  animation:toast 3.2s forwards;box-shadow:0 6px 20px #000a}
.toast.core{border-color:var(--core)}.toast.chip{border-color:var(--chip)}
@keyframes toast{0%{opacity:0;transform:translateY(-10px)}8%{opacity:1;transform:none}85%{opacity:1}100%{opacity:0}}
/* Tabs */
#tabs{flex:none;display:flex;background:linear-gradient(#1a222d,#10151c);border-top:2px solid #000;box-shadow:0 1px 0 #2c3a4b inset;padding-bottom:var(--sab);z-index:6}
#tabs button{flex:1;padding:8px 0 7px;display:flex;flex-direction:column;align-items:center;gap:1px;font-size:11px;font-weight:800;color:var(--muted);position:relative}
#tabs .ti{font-size:22px;filter:grayscale(.6);transition:transform .15s}
#tabs button.on{color:#fff}
#tabs button.on .ti{filter:none;transform:translateY(-2px) scale(1.1)}
#tabs button.on:before{content:"";position:absolute;top:0;left:22%;right:22%;height:3px;border-radius:0 0 3px 3px;background:var(--hazard)}
#tabs button.lock{opacity:.35}
.dot{position:absolute;top:6px;right:calc(50% - 20px);width:10px;height:10px;border-radius:50%;background:#ff4d4d;box-shadow:0 0 6px #ff4d4d}
.credits{text-align:center}
.logo-rivet{font-size:34px;color:var(--hazard)}
.sing{text-align:center;background:radial-gradient(circle at 50% 0,#2a1550,#0d0a18);border-color:#4a2a80}
.sing .hole{width:120px;height:120px;margin:10px auto;border-radius:50%;background:radial-gradient(circle,#000 0 38%,#6b2fd0 48%,#ff7ad9 55%,transparent 70%);
  animation:spin 6s linear infinite;box-shadow:0 0 40px #8a4ff088}
@keyframes spin{to{transform:rotate(360deg)}}