*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-primary:#0d1117;
  --bg-secondary:#161b22;
  --bg-card:#1c2333;
  --bg-hover:#262f3d;
  --border-color:#30363d;
  --border-highlight:#58a6ff;
  --text-primary:#e6edf3;
  --text-secondary:#8b949e;
  --text-muted:#484f58;
  --accent-blue:#58a6ff;
  --accent-green:#3fb950;
  --accent-yellow:#d29922;
  --accent-red:#f85149;
  --accent-purple:#bc8cff;
  --cat-infantry:#e53935;
  --cat-archer:#43a047;
  --cat-cavalry:#1e88e5;
  --cat-siege:#f9a825;
  --cat-utility:#9c27b0;
  --node-width:180px;
  --node-height:80px;
}
body{
  font-family:'Segoe UI',system-ui,-apple-system,sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  overflow-x:hidden;
  min-height:100vh;
}
.app{display:flex;flex-direction:column;min-height:100vh}

.app-header{
  text-align:center;
  padding:24px 20px 8px;
}
.app-title{font-size:1.5rem;font-weight:700;color:var(--text-primary)}
.app-subtitle{font-size:.85rem;color:var(--text-secondary);margin-top:4px}

.settings-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:10px 24px;
  background:var(--bg-secondary);
  border-top:1px solid var(--border-color);
  border-bottom:1px solid var(--border-color);
  flex-wrap:wrap;
  gap:10px;
}
.settings-info p{font-size:.8rem;color:var(--text-secondary)}
.settings-controls{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.setting-group{display:flex;align-items:center;gap:8px;font-size:.85rem}
.setting-group label{display:flex;align-items:center;gap:6px;color:var(--text-secondary);white-space:nowrap}
.setting-icon{width:22px;height:22px;border-radius:4px}
.setting-group select{
  padding:4px 8px;
  background:var(--bg-card);
  color:var(--text-primary);
  border:1px solid var(--border-color);
  border-radius:6px;
  font-size:.85rem;
  cursor:pointer;
}
.toggle-switch{position:relative;display:inline-block;width:40px;height:22px;cursor:pointer}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background:var(--bg-card);border:1px solid var(--border-color);
  border-radius:22px;transition:.2s;
}
.toggle-slider::before{
  content:'';position:absolute;height:16px;width:16px;left:2px;bottom:2px;
  background:var(--text-secondary);border-radius:50%;transition:.2s;
}
.toggle-switch input:checked+.toggle-slider{background:var(--accent-blue);border-color:var(--accent-blue)}
.toggle-switch input:checked+.toggle-slider::before{transform:translateX(18px);background:#fff}

.tech-tree-section{flex:1;display:flex;flex-direction:column;overflow:hidden}
.tech-tree-header{
  display:flex;align-items:center;justify-content:center;
  padding:12px 20px;
}
.tech-tree-header h2{font-size:.9rem;letter-spacing:2px;color:var(--text-secondary);font-weight:600}

.mode-selector{
  display:flex;align-items:center;justify-content:center;
  gap:8px;padding:6px 20px 10px;flex-wrap:wrap;
}
.mode-label{font-size:.75rem;color:var(--text-muted);font-weight:600;letter-spacing:1px;margin-right:4px}
.mode-btn{
  display:flex;align-items:center;gap:6px;
  padding:6px 16px;border:1px solid var(--border-color);
  background:var(--bg-card);color:var(--text-secondary);
  border-radius:6px;cursor:pointer;font-size:.82rem;
  transition:all .15s;
}
.mode-btn:hover{border-color:var(--accent-blue);color:var(--text-primary)}
.mode-btn.active{background:var(--accent-blue);border-color:var(--accent-blue);color:#fff}
.mode-btn.clear-btn.active{background:var(--accent-red);border-color:var(--accent-red)}
.mode-btn.bonus-btn{border-color:var(--accent-yellow);color:var(--accent-yellow)}
.mode-btn.bonus-btn:hover{background:var(--accent-yellow);color:#000}

.bonus-panel-overlay{
  display:none;position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,.6);z-index:2000;
  justify-content:center;align-items:center;padding:16px;
}
.bonus-panel-overlay.visible{display:flex}
.bonus-panel{
  background:var(--bg-card);border:1px solid var(--border-color);
  border-radius:12px;max-width:500px;width:100%;max-height:80vh;
  display:flex;flex-direction:column;overflow:hidden;
}
.bonus-panel-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 18px;border-bottom:1px solid var(--border-color);
}
.bonus-panel-header h3{font-size:.95rem;color:var(--accent-yellow);margin:0;display:flex;align-items:center;gap:8px}
.bonus-close{
  background:none;border:none;color:var(--text-muted);font-size:1.1rem;cursor:pointer;
  padding:4px 8px;border-radius:4px;
}
.bonus-close:hover{color:var(--text-primary);background:var(--bg-secondary)}
.bonus-panel-body{overflow-y:auto;padding:14px 18px}
.bonus-category{margin-bottom:14px}
.bonus-category-title{
  font-size:.75rem;text-transform:uppercase;letter-spacing:1px;
  color:var(--text-muted);padding-bottom:6px;margin-bottom:8px;
  border-bottom:1px solid var(--border-color);
}
.bonus-category-title.cat-infantry{color:#e06050}
.bonus-category-title.cat-archer{color:#d090e0}
.bonus-category-title.cat-cavalry{color:#50b0e0}
.bonus-category-title.cat-siege{color:#e0a030}
.bonus-category-title.cat-utility{color:var(--accent-green)}
.bonus-category-title.cat-rc{color:var(--accent-blue)}
.bonus-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:5px 0;font-size:.82rem;
}
.bonus-row .bonus-name{color:var(--text-secondary)}
.bonus-row .bonus-value{color:var(--accent-green);font-weight:600}
.bonus-row .bonus-value.bonus-negative{color:var(--accent-blue)}
.bonus-empty{color:var(--text-muted);font-size:.82rem;text-align:center;padding:20px 0}

.tech-tree-viewport{
  position:relative;flex:1;overflow:auto;
  cursor:grab;user-select:none;
  background:
    radial-gradient(circle at 20% 30%,rgba(88,166,255,.03) 0%,transparent 40%),
    radial-gradient(circle at 80% 70%,rgba(188,140,255,.03) 0%,transparent 40%),
    var(--bg-primary);
}
.tech-tree-viewport:active{cursor:grabbing}
.tech-tree-viewport::-webkit-scrollbar{height:8px;width:8px}
.tech-tree-viewport::-webkit-scrollbar-track{background:var(--bg-secondary)}
.tech-tree-viewport::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}
.tech-tree-viewport::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}

.tech-tree-canvas{position:relative}
.connections-svg{position:absolute;top:0;left:0;pointer-events:none;z-index:1;overflow:visible}

.tech-node{
  position:absolute;
  width:var(--node-width);
  height:var(--node-height);
  background:var(--bg-card);
  border:2px solid var(--border-color);
  border-radius:10px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:8px 10px;
  cursor:pointer;
  transition:border-color .15s,box-shadow .15s,transform .1s;
  z-index:2;
  overflow:hidden;
}
.tech-node::before{
  content:'';position:absolute;bottom:0;left:0;right:0;
  height:3px;border-radius:0 0 8px 8px;
  background:var(--border-color);transition:width .2s;
}
.tech-node.cat-infantry::before{background:var(--cat-infantry)}
.tech-node.cat-archer::before{background:var(--cat-archer)}
.tech-node.cat-cavalry::before{background:var(--cat-cavalry)}
.tech-node.cat-siege::before{background:var(--cat-siege)}
.tech-node.cat-utility::before{background:var(--cat-utility)}

.tech-node:hover{
  border-color:var(--accent-blue);
  box-shadow:0 0 12px rgba(88,166,255,.2);
  transform:translateY(-1px);
}
.tech-node.locked{opacity:.75;filter:grayscale(.4)}
.tech-node.locked:hover{border-color:var(--accent-red);box-shadow:0 0 12px rgba(248,81,73,.15)}
.tech-node.max-level{border-color:var(--accent-green)}
.tech-node.max-level::after{
  content:'';position:absolute;inset:0;
  background:rgba(63,185,80,.06);pointer-events:none;border-radius:8px;
}
.tech-node.partial-level{border-color:var(--accent-yellow)}

.tech-node-img{width:44px;height:44px;border-radius:6px;flex-shrink:0;object-fit:cover}
.tech-node-info{display:flex;flex-direction:column;min-width:0;flex:1}
.tech-node-name{
  font-size:.72rem;font-weight:600;color:var(--text-primary);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  line-height:1.2;
}
.tech-node-buff{font-size:.68rem;color:var(--accent-blue);margin-top:1px}
.tech-node-level{
  font-size:.68rem;color:var(--text-secondary);margin-top:2px;
  display:flex;align-items:center;gap:4px;
}
.level-bar{
  flex:1;height:4px;background:var(--bg-primary);border-radius:2px;
  overflow:hidden;max-width:60px;
}
.level-bar-fill{height:100%;border-radius:2px;transition:width .2s;background:var(--accent-yellow)}
.tech-node.max-level .level-bar-fill{background:var(--accent-green)}

.tech-info-btn{
  position:absolute;top:4px;right:4px;
  background:none;border:none;color:var(--text-muted);
  cursor:pointer;font-size:.7rem;padding:2px 4px;
  opacity:.5;transition:opacity .15s,color .15s;
  z-index:3;line-height:1;
}
.tech-info-btn:hover{opacity:1;color:var(--accent-blue)}

.connection-line{
  stroke:var(--border-color);stroke-width:2.5;fill:none;
  stroke-opacity:.6;transition:stroke .2s,stroke-opacity .2s;
}
.connection-line.active{stroke:var(--accent-green);stroke-width:3;stroke-opacity:.85}
.connection-line.partial{stroke:var(--accent-yellow);stroke-width:2.5;stroke-opacity:.7}

.drag-hint{
  text-align:center;padding:6px;font-size:.7rem;
  color:var(--text-muted);background:var(--bg-secondary);
  border-top:1px solid var(--border-color);
}

.summary-bar{
  display:flex;align-items:center;justify-content:center;
  gap:30px;padding:14px 24px;
  background:var(--bg-secondary);
  border-top:1px solid var(--border-color);
  flex-wrap:wrap;
}
.summary-item{display:flex;align-items:center;gap:8px}
.summary-icon{width:24px;height:24px;border-radius:4px}
.summary-label{font-size:.78rem;color:var(--text-secondary);font-weight:500}
.summary-value{font-size:.9rem;font-weight:700;color:var(--text-primary)}
.highlight-coins{color:var(--accent-yellow)}
.highlight-crystals{color:var(--accent-purple)}
.summary-toggle{
  background:none;border:none;color:var(--text-muted);
  cursor:pointer;font-size:.75rem;padding:4px;
  transition:transform .2s;
}
.summary-toggle.open{transform:rotate(180deg)}

.speedup-panel,.crystal-panel,.guide-panel{
  display:none;background:var(--bg-secondary);
  border-top:1px solid var(--border-color);
  padding:14px 24px;
}
.speedup-panel.visible,.crystal-panel.visible{display:block}
.guide-panel{
  max-height:320px;overflow:hidden;flex-direction:column;
}
.guide-panel.visible{display:flex}
.guide-panel-header{
  display:flex;justify-content:space-between;align-items:center;
  padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid var(--border-color);
}
.guide-panel-title-row{display:flex;align-items:center;gap:10px;flex:1}
.guide-panel-header h3{margin:0;font-size:.95rem;color:var(--accent-yellow);display:flex;align-items:center;gap:8px}
.guide-close{background:none;border:none;color:var(--text-muted);cursor:pointer;padding:4px 8px;border-radius:4px}
.guide-close:hover{color:var(--text-primary)}
.guide-panel-body{display:none}
.guide-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px;margin-bottom:12px;min-height:0}
.guide-step{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  padding:6px 10px;border-radius:6px;cursor:pointer;
  font-size:.8rem;color:var(--text-secondary);
  border:1px solid transparent;
}
.guide-step:hover{background:var(--bg-primary)}
.guide-step.current{background:rgba(88,166,255,.15);border-color:var(--accent-blue);color:var(--text-primary)}
.guide-step.done{color:var(--accent-green)}
.guide-step-num{font-weight:600;min-width:1.5em;color:var(--text-muted)}
.guide-step.current .guide-step-num{color:var(--accent-blue)}
.guide-step-name{font-weight:600}
.guide-step-levels{color:var(--text-muted)}
.guide-step-action{color:var(--accent-yellow)}
.guide-step-done{color:var(--accent-green);font-size:.75rem}
.guide-controls{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px}
.guide-btn{
  display:flex;align-items:center;gap:6px;
  padding:8px 14px;border:1px solid var(--border-color);
  background:var(--bg-card);color:var(--text-secondary);
  border-radius:6px;cursor:pointer;font-size:.82rem;
  transition:border-color .15s,background .15s;
}
.guide-btn:hover{border-color:var(--accent-blue);background:var(--bg-primary)}
.guide-apply{background:var(--accent-blue);border-color:var(--accent-blue);color:#fff}
.guide-apply:hover{filter:brightness(1.1)}
#toggle-guide.open{border-color:var(--accent-yellow);color:var(--accent-yellow)}
.panel-content{
  max-width:500px;margin:0 auto;
  display:flex;flex-direction:column;gap:12px;
}
.panel-stats{display:flex;flex-direction:column;gap:8px}
.stat-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:6px 10px;border-radius:6px;
  font-size:.85rem;color:var(--text-secondary);
  background:rgba(255,255,255,.03);
}
.stat-row span:last-child{
  font-weight:600;color:var(--text-primary);font-variant-numeric:tabular-nums;
}
.stat-row.final{
  border-top:1px solid var(--border-color);margin-top:4px;padding-top:10px;
  background:rgba(76,175,80,.08);
}
.stat-row.final span:last-child{color:var(--accent-green);font-size:.95rem}
.panel-inputs{display:flex;gap:16px;flex-wrap:wrap}
.panel-input-group{display:flex;flex-direction:column;gap:4px;flex:1;min-width:160px}
.panel-input-group label{font-size:.75rem;color:var(--text-secondary)}
.input-suffix-wrap{display:flex;align-items:center;gap:4px}
.input-suffix-wrap input{
  width:70px;padding:4px 8px;
  background:var(--bg-card);color:var(--text-primary);
  border:1px solid var(--border-color);border-radius:6px;
  font-size:.85rem;
}
.input-suffix{font-size:.8rem;color:var(--text-muted)}
.panel-stats{display:flex;flex-direction:column;gap:4px}
.stat-row{
  display:flex;justify-content:space-between;
  font-size:.8rem;color:var(--text-secondary);
  padding:3px 0;
}
.stat-row.final{
  font-weight:700;color:var(--accent-blue);
  border-top:1px solid var(--border-color);
  padding-top:8px;margin-top:4px;
}

.tooltip-overlay{
  display:none;position:fixed;z-index:1000;
  background:var(--bg-card);border:1px solid var(--border-color);
  border-radius:10px;padding:16px;min-width:320px;max-width:420px;
  box-shadow:0 8px 32px rgba(0,0,0,.5);
  pointer-events:auto;
}
.tooltip-overlay.visible{display:block}
.tooltip-header{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.tooltip-img{width:48px;height:48px;border-radius:8px}
.tooltip-title-area{flex:1}
.tooltip-name{font-size:.95rem;font-weight:700}
.tooltip-type{font-size:.75rem;color:var(--text-secondary);margin-top:2px}
.tooltip-desc{font-size:.78rem;color:var(--text-secondary);margin-bottom:12px;line-height:1.4}
.tooltip-close{
  position:absolute;top:8px;right:12px;
  background:none;border:none;color:var(--text-muted);
  cursor:pointer;font-size:1rem;padding:4px;
}
.tooltip-close:hover{color:var(--text-primary)}
.tooltip-levels-table{
  width:100%;border-collapse:collapse;font-size:.72rem;
  margin-bottom:10px;
}
.tooltip-levels-table th{
  text-align:left;padding:4px 6px;color:var(--text-muted);
  font-weight:600;border-bottom:1px solid var(--border-color);
  font-size:.68rem;
}
.tooltip-levels-table td{
  padding:4px 6px;color:var(--text-secondary);
  border-bottom:1px solid rgba(48,54,61,.5);
}
.tooltip-levels-table tr.completed td{color:var(--accent-green)}
.tooltip-levels-table tr.next-level td{color:var(--accent-yellow);font-weight:600}
.tooltip-totals{
  display:flex;gap:12px;padding:8px 0;
  border-top:1px solid var(--border-color);
  font-size:.78rem;color:var(--text-secondary);
}
.tooltip-totals span{display:flex;align-items:center;gap:4px}
.tooltip-totals .val{color:var(--text-primary);font-weight:600}
.tooltip-requirements{
  margin-top:8px;padding-top:8px;
  border-top:1px solid var(--border-color);
}
.tooltip-requirements h4{
  font-size:.72rem;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:1px;margin-bottom:6px;
}
.tooltip-req-item{
  font-size:.75rem;padding:4px 0;display:flex;align-items:flex-start;gap:6px;
  line-height:1.5;
}
.tooltip-req-item i{flex-shrink:0;margin-top:3px}
.tooltip-req-item .req-text{flex:1;min-width:0}
.tooltip-req-item .req-label{font-weight:600;white-space:nowrap}
.tooltip-req-item .req-level-note{color:var(--text-muted);white-space:nowrap;margin-left:4px}
.tooltip-req-item.met{color:var(--accent-green)}
.tooltip-req-item.unmet{color:var(--accent-red)}
.tooltip-req-item .req-link{cursor:pointer;text-decoration:underline;color:inherit}
.tooltip-req-item .req-link:hover{color:var(--accent-blue)}

@media(max-width:768px){
  .settings-bar{flex-direction:column;align-items:flex-start}
  .summary-bar{flex-direction:column;gap:10px;align-items:flex-start;padding:10px 16px}
  .mode-selector{gap:4px}
  .mode-btn{padding:5px 10px;font-size:.75rem}
  .app-title{font-size:1.2rem}
  .tooltip-overlay{min-width:280px;max-width:calc(100vw - 32px)}
}

@media(min-width:769px){
  .tech-node{
    gap:14px;
    padding:12px 14px;
    border-radius:12px;
  }
  .tech-node-img{width:56px;height:56px;border-radius:8px}
  .tech-node-name{
    font-size:.88rem;
    white-space:normal;
    overflow:visible;
    text-overflow:unset;
    line-height:1.25;
  }
  .tech-node-buff{font-size:.8rem;margin-top:2px}
  .tech-node-level{font-size:.78rem;margin-top:3px}
  .level-bar{height:5px;max-width:80px}
  .tech-node::before{height:4px}
}

@keyframes shake{
  0%,100%{transform:translateX(0)}
  20%{transform:translateX(-6px)}
  40%{transform:translateX(6px)}
  60%{transform:translateX(-4px)}
  80%{transform:translateX(4px)}
}

@keyframes pulse{
  0%,100%{box-shadow:0 0 0 0 rgba(88,166,255,.6)}
  50%{box-shadow:0 0 20px 6px rgba(88,166,255,.8)}
}