:root{
  --screen:#cdd0d5;
  --ink:#23262b;
  --bridge:#2b3038;
  --bridge-2:#363c45;
  --bridge-line:#1b1f25;
  --on-dark:#e9ebee;
  --on-dark-sub:#9aa0a8;
  --gold:#c79234;
  --gold-text:#d9a441;
  --stats-bg:#dfe2e6;
  --stats-line:#c2c7cd;
  --stats-div:#cdd2d8;
  --stat-val:#1c1f24;
  --stat-lbl:#6a6f77;
  --play:#c4c8cd;
  --dot:rgba(118,124,132,.42);
  --rail:#bfc4ca;
  --rail-line:#aeb4bb;
  --green-1:#46c47e; --green-2:#2f7d4e; --green-sh:#245f3b;
  --red-1:#e85d54;   --red-2:#b23a33;   --red-sh:#8a2a24;
  --clip-1:#3a4150;  --clip-2:#22262d;  --clip-border:#4a525f;
  --sans:'IBM Plex Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,monospace;
}

*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:#0a0b0d;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  overscroll-behavior:none;
}

/* ---------- app shell ---------- */
#app{
  position:relative;
  width:100%;
  max-width:430px;
  height:100dvh;
  background:var(--screen);
  display:flex;flex-direction:column;
  overflow:hidden;
  user-select:none;-webkit-user-select:none;
}
@media (min-width:480px){
  body{background:#16181c}
  #app{
    height:min(900px,96dvh);
    border-radius:34px;
    box-shadow:0 1px 3px rgba(0,0,0,.4),0 30px 70px rgba(0,0,0,.55);
    border:10px solid #0a0b0d;
  }
}

/* ---------- bridge ---------- */
#bridge{
  flex:0 0 auto;
  background:var(--bridge);
  color:var(--on-dark);
  padding:calc(env(safe-area-inset-top) + 14px) 16px 13px;
  display:flex;flex-direction:column;gap:9px;
  border-bottom:2px solid var(--bridge-line);
  z-index:6;
}
.bridge-top{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:linear-gradient(140deg,var(--clip-1),var(--clip-2));
  border:1px solid var(--clip-border);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px}
.brand-text{line-height:1.05}
.brand-name{font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-family:var(--mono);font-size:8px;letter-spacing:.14em;color:var(--on-dark-sub);margin-top:2px}
.shift{
  font-family:var(--mono);font-size:9px;font-weight:600;color:#aeb4bb;
  background:var(--bridge-2);border:1px solid #434a54;border-radius:6px;padding:4px 8px;
  white-space:nowrap;
}

.directive{
  display:flex;align-items:center;gap:9px;overflow:hidden;
  background:var(--bridge-2);border:none;border-left:3px solid var(--gold);
  border-radius:6px;padding:7px 11px;text-align:left;cursor:pointer;width:100%;
  font-family:var(--sans);color:inherit;
}
.directive:active{filter:brightness(1.12)}
.directive-tag{font-family:var(--mono);font-size:8px;font-weight:600;letter-spacing:.1em;color:var(--gold-text);flex:0 0 auto}
.directive-text{font-size:11px;color:#d4d7db;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

.ticker{display:flex;align-items:center;gap:10px}
.tkr-sym{font-family:var(--mono);font-size:11px;font-weight:700;color:#aeb4bb;letter-spacing:.05em}
.tkr-price{font-family:var(--mono);font-size:15px;font-weight:600;color:#f0f2f4}
.tkr-delta{display:flex;align-items:center;gap:2px;font-family:var(--mono);font-size:11px;font-weight:600;color:var(--green-1)}
.tkr-delta.down{color:var(--red-1)}
.tkr-spark{margin-left:auto;flex:0 0 auto}

/* ---------- stats ---------- */
#stats{
  flex:0 0 54px;display:flex;background:var(--stats-bg);
  border-bottom:1px solid var(--stats-line);z-index:5;
}
.stat{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  border-right:1px solid var(--stats-div);
}
.stat:last-child{border-right:none}
.stat-val{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--stat-val);transition:color .25s}
.stat-val.warn{color:var(--red-2)}
.stat-lbl{font-size:7.5px;font-weight:600;letter-spacing:.08em;color:var(--stat-lbl)}

/* ---------- play area ---------- */
#play{
  flex:1 1 auto;position:relative;overflow:hidden;
  background:var(--play);
  background-image:radial-gradient(circle,var(--dot) 1.3px,transparent 1.6px);
  background-size:22px 22px;
}
#play::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:0;border-left:1px dashed rgba(40,44,50,.18)}

.conv-banner{
  position:absolute;left:12px;right:12px;top:10px;height:22px;z-index:3;
  border-radius:6px;background:rgba(43,48,56,.9);overflow:hidden;
  display:flex;align-items:center;
  box-shadow:0 2px 8px rgba(0,0,0,.18);
}
.conv-fill{position:absolute;left:0;top:0;bottom:0;width:0%;
  background:linear-gradient(90deg,rgba(199,146,52,.55),rgba(199,146,52,.85));transition:width .5s}
.conv-label{position:relative;font-family:var(--mono);font-size:8.5px;font-weight:600;
  letter-spacing:.08em;color:#eef0f2;padding:0 10px;white-space:nowrap}

#treeWrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;touch-action:none}
#tree{width:100%;height:100%;max-height:100%}
.node-hit{cursor:pointer}
.node-pulse{animation:nodePulse 1.6s ease-in-out infinite}
@keyframes nodePulse{0%,100%{opacity:.16}50%{opacity:.4}}

.float-log{
  position:absolute;left:0;right:0;bottom:8px;display:flex;flex-direction:column;
  align-items:center;gap:4px;pointer-events:none;z-index:4;
}
.log-line{
  font-family:var(--mono);font-size:9.5px;color:#3a3f47;background:rgba(223,226,230,.92);
  border:1px solid #c2c7cd;border-radius:20px;padding:3px 10px;white-space:nowrap;max-width:90%;
  overflow:hidden;text-overflow:ellipsis;
  animation:logIn .3s ease-out, logOut .4s ease-in forwards;animation-delay:0s,3.2s;
}
@keyframes logIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@keyframes logOut{to{opacity:0;transform:translateY(-6px)}}

.pop{position:absolute;font-family:var(--mono);font-size:12px;font-weight:700;color:#2b3038;
  pointer-events:none;z-index:8;animation:popUp .7s ease-out forwards}
@keyframes popUp{from{opacity:1;transform:translateY(0)}to{opacity:0;transform:translateY(-34px)}}

/* ---------- bottom / batch ---------- */
#bottom{
  flex:0 0 116px;display:flex;align-items:center;justify-content:center;
  padding:0 0 calc(env(safe-area-inset-bottom) + 18px);background:var(--screen);z-index:6;
}
#batchBtn{
  width:96px;height:96px;border-radius:50%;border:2px solid var(--clip-border);
  background:radial-gradient(circle at 38% 30%,var(--clip-1),var(--clip-2));
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  color:#eef1f4;cursor:pointer;
  box-shadow:0 6px 0 #14171c,0 14px 26px rgba(0,0,0,.34);
  transition:transform .06s, box-shadow .06s;
}
#batchBtn svg{width:35px;height:35px}
#batchBtn:active{transform:translateY(4px);box-shadow:0 2px 0 #14171c,0 8px 14px rgba(0,0,0,.34)}
.batch-label{font-family:var(--mono);font-size:8px;font-weight:600;letter-spacing:.08em;text-align:center;padding:0 4px}

/* ---------- corner scales + buttons ---------- */
.rail{
  position:absolute;bottom:0;width:14px;height:30%;border-radius:7px 7px 0 0;
  background:var(--rail);border:1px solid var(--rail-line);border-bottom:none;
  overflow:hidden;display:flex;flex-direction:column-reverse;z-index:14;
}
.rail-left{left:25px}
.rail-right{right:25px}
.rail-fill{width:100%;transition:height .4s}
.rail-fill-green{height:38%;background:linear-gradient(var(--green-1),var(--green-2))}
.rail-fill-red{height:71%;background:linear-gradient(var(--red-1),var(--red-2))}

.corner{
  position:absolute;bottom:-24px;width:88px;height:88px;border-radius:50%;border:none;
  display:flex;align-items:flex-start;z-index:15;cursor:pointer;
  transition:transform .06s,box-shadow .06s,filter .12s;
}
.corner svg{width:24px;height:24px}
.corner-green{
  left:-12px;background:linear-gradient(var(--green-1),var(--green-2));color:#eafff1;
  justify-content:flex-end;padding:15px 15px 0 0;box-shadow:0 4px 0 var(--green-sh),0 10px 18px rgba(0,0,0,.22);
}
.corner-red{
  right:-12px;background:linear-gradient(var(--red-1),var(--red-2));color:#fff0ef;
  justify-content:flex-start;padding:15px 0 0 15px;box-shadow:0 4px 0 var(--red-sh),0 10px 18px rgba(0,0,0,.22);
}
.corner:active{transform:translateY(3px)}
.corner.disabled{filter:grayscale(.6) brightness(.85);opacity:.6;pointer-events:none}
.corner.event-hot{animation:cornerHot 1s ease-in-out infinite}
@keyframes cornerHot{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}

.scale-tag{
  position:absolute;bottom:64px;z-index:16;font-family:var(--mono);font-size:7px;font-weight:600;
  letter-spacing:.04em;color:#4a4f57;background:rgba(223,226,230,.9);border:1px solid #c2c7cd;
  border-radius:5px;padding:2px 5px;white-space:nowrap;pointer-events:none;
}
.scale-tag-left{left:6px}
.scale-tag-right{right:6px;text-align:right}

/* ---------- modal ---------- */
#modalLayer{
  position:absolute;inset:0;z-index:40;display:flex;align-items:center;justify-content:center;
  padding:18px;background:rgba(20,23,28,.55);backdrop-filter:blur(2px);
  animation:fadeIn .18s ease-out;
}
#modalLayer.hidden{display:none}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.card{
  width:100%;max-width:340px;background:#eef0f2;border-radius:16px;overflow:hidden;
  box-shadow:0 20px 50px rgba(0,0,0,.4);animation:cardIn .22s cubic-bezier(.2,.9,.3,1.3);
  max-height:88%;display:flex;flex-direction:column;
}
@keyframes cardIn{from{opacity:0;transform:scale(.92) translateY(10px)}to{opacity:1;transform:none}}
.card-head{padding:14px 16px;color:#fff;position:relative}
.card-kicker{font-family:var(--mono);font-size:8px;font-weight:600;letter-spacing:.12em;opacity:.85}
.card-title{font-size:16px;font-weight:700;margin-top:3px;line-height:1.15}
.card-body{padding:14px 16px;overflow-y:auto}
.card-flavor{font-size:12.5px;line-height:1.45;color:#3a3f47}
.card-effect{margin-top:11px;display:flex;flex-direction:column;gap:6px}
.eff-row{display:flex;align-items:center;gap:7px;font-size:11.5px;color:#2b3038}
.eff-row .dot{width:7px;height:7px;border-radius:50%;flex:0 0 auto}
.eff-row.bad{color:var(--red-2)}
.gate{margin-top:12px;font-family:var(--mono);font-size:10px;padding:8px 10px;border-radius:8px;
  background:#dfe2e6;color:#4a4f57;line-height:1.4}
.gate.fail{background:#f6dedb;color:var(--red-2)}
.card-foot{padding:12px 16px 16px;display:flex;gap:8px}
.btn{flex:1;border:none;border-radius:10px;padding:12px;font-family:var(--sans);font-weight:600;
  font-size:13px;cursor:pointer;transition:filter .12s,transform .06s}
.btn:active{transform:translateY(1px)}
.btn-ghost{background:#d3d7dc;color:#3a3f47}
.btn-buy{background:linear-gradient(var(--clip-1),var(--clip-2));color:#eef1f4}
.btn-buy:disabled{filter:grayscale(.7) brightness(.9);opacity:.55;cursor:not-allowed}
.btn-buy .cost{font-family:var(--mono);font-size:12px;margin-left:4px}
.btn-buy .cost.red{color:#ffb3ad}

/* event choice buttons */
.btn-green{background:linear-gradient(var(--green-1),var(--green-2));color:#eafff1}
.btn-red{background:linear-gradient(var(--red-1),var(--red-2));color:#fff0ef}
.choice{flex-direction:column;align-items:flex-start;gap:3px;text-align:left;padding:11px 13px}
.choice .ch-act{font-size:13px;font-weight:700}
.choice .ch-hint{font-size:9.5px;font-weight:500;opacity:.9;font-family:var(--mono)}

/* end screens */
.end .card-head{padding:20px 18px}
.end .card-title{font-size:19px}
.end-stats{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.end-stat{display:flex;justify-content:space-between;font-size:12px;color:#3a3f47}
.end-stat b{font-family:var(--mono);color:#1c1f24}
.locked{margin-top:14px;border:1px dashed #aeb4bb;border-radius:10px;padding:12px;
  text-align:center;color:#6a6f77}
.locked .lk-title{font-weight:700;color:#3a3f47;font-size:13px}
.locked .lk-sub{font-family:var(--mono);font-size:9px;letter-spacing:.08em;margin-top:4px}

.toast{
  position:absolute;left:50%;bottom:140px;transform:translateX(-50%);z-index:30;
  background:rgba(43,48,56,.96);color:#eef0f2;font-size:11.5px;font-weight:500;
  padding:9px 14px;border-radius:10px;max-width:80%;text-align:center;line-height:1.35;
  box-shadow:0 8px 20px rgba(0,0,0,.3);animation:toastIn .25s ease-out;
}
.toast.bad{background:rgba(150,46,40,.96)}
.toast.good{background:rgba(36,95,59,.96)}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,8px)}to{opacity:1;transform:translate(-50%,0)}}

.flash-red{animation:flashRed .5s ease-out}
@keyframes flashRed{0%{box-shadow:inset 0 0 0 0 rgba(232,93,84,0)}30%{box-shadow:inset 0 0 60px 0 rgba(232,93,84,.45)}100%{box-shadow:inset 0 0 0 0 rgba(232,93,84,0)}}