*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f5f6fa;--panel:#ffffff;--panel2:#eef0f5;
  --border:rgba(30,50,80,0.12);
  --text:#241E3B;--muted:rgba(50,70,100,0.55);
  --drive:#FF8C42;--sensor:#10A7AA;--control:#7C3AED;
  --event:#D97706;--math:#059669;--variable:#DB2777;--logic:#BE185D;
  --ard-teal:#10A7AA;--ard-dark:#241E3B;
  --shadow:0 2px 8px rgba(30,50,80,0.08);
  --shadow-md:0 4px 16px rgba(30,50,80,0.12);
}
html,body{font-family:'Nunito',sans-serif;background:var(--bg);color:var(--text);overflow:hidden;height:100vh;width:100vw;}
#app{display:flex;flex-direction:column;height:100vh;width:100vw;}

#topbar{display:flex;align-items:center;gap:6px;padding:8px 14px;background:linear-gradient(90deg,#241E3B,#241E3B);border-bottom:3px solid #10A7AA;flex-shrink:0;z-index:100;overflow-x:auto;box-shadow:0 2px 12px rgba(0,0,0,0.3);}
.logo{font-size:17px;font-weight:900;color:#FFC53D;font-family:'JetBrains Mono',monospace;}
.badge{font-size:10px;font-weight:900;padding:3px 7px;border-radius:4px;background:rgba(255,197,61,0.18);color:#FFC53D;border:1px solid rgba(255,197,61,0.35);letter-spacing:.05em;}
.tbtn{font-family:'Nunito',sans-serif;font-size:13px;font-weight:800;padding:9px 18px;border-radius:9px;border:1px solid rgba(255,255,255,0.12);cursor:pointer;transition:all .15s;background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.85);white-space:nowrap;flex-shrink:0;}
.tbtn.course{display:none;}

.tbtn.play{background:rgba(5,150,105,0.25);color:#34D399;border-color:rgba(5,150,105,0.4);}.tbtn.play:hover{background:rgba(5,150,105,0.4);}
.tbtn.stop{background:rgba(239,68,68,0.25);color:#ff8080;border-color:rgba(239,68,68,0.4);}.tbtn.stop:hover{background:rgba(239,68,68,0.4);}
.tbtn.reset{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.7);}
.tbtn.reset:hover{background:rgba(255,255,255,0.15);}
.sel{font-family:'Nunito',sans-serif;font-size:12px;font-weight:700;padding:6px 10px;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:8px;cursor:pointer;max-width:170px;box-shadow:var(--shadow);}

#main{display:flex;flex:1;overflow:hidden;position:relative;}

#palette{width:210px;background:var(--panel);border-right:1px solid var(--border);overflow-y:auto;flex-shrink:0;padding:12px 10px;position:relative;min-width:190px;max-width:500px;}
#palette::-webkit-scrollbar{width:5px;}
#palette::-webkit-scrollbar-track{background:transparent;}
#palette::-webkit-scrollbar-thumb{background:rgba(30,50,80,0.2);border-radius:4px;}

#workspace{flex:1;background:var(--bg);position:relative;overflow:hidden;display:flex;flex-direction:column;min-width:200px;}

#sim-wrap{width:580px;background:#1a1f2e;border-left:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;position:relative;min-width:320px;max-width:1100px;}

.resize-handle{position:absolute;top:0;bottom:0;width:6px;cursor:col-resize;background:transparent;z-index:50;transition:background .15s;}
.resize-handle:hover,.resize-handle.dragging{background:var(--ard-teal);}
.resize-handle .rh-grip{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:3px;height:32px;border-radius:2px;background:var(--border);transition:background .15s;}
.resize-handle:hover .rh-grip,.resize-handle.dragging .rh-grip{background:white;}
#resize-palette{right:-3px;}
#resize-sim{left:-3px;}

#ws-area{flex:1;position:relative;overflow:hidden;background:linear-gradient(to bottom, #f8f9fb, #eef0f5);}
#ws-drop{width:100%;height:100%;position:relative;
  background-image:radial-gradient(circle at 1px 1px, rgba(30,50,80,0.1) 1px, transparent 0);
  background-size:20px 20px;
}

#robot-picker{display:none;}
.rp-btn{font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:700;padding:8px 14px;background:transparent;color:rgba(255,255,255,0.45);border:1px solid transparent;border-radius:10px;cursor:pointer;transition:all .18s;display:flex;flex-direction:column;align-items:center;gap:3px;min-width:64px;}
.rp-btn:hover{color:white;background:rgba(255,255,255,0.1);}
.rp-btn.active{background:rgba(255,197,61,0.14);color:#FFC53D;border-color:rgba(255,197,61,0.55);box-shadow:0 0 12px rgba(255,197,61,0.25);}
.rp-btn .rp-icon{font-size:20px;}
.rp-btn .rp-name{font-size:9px;font-weight:800;letter-spacing:.05em;}

#mission-panel{position:absolute;top:14px;left:14px;z-index:40;background:var(--panel);border:1px solid var(--sensor);border-radius:10px;padding:10px 14px;max-width:300px;box-shadow:var(--shadow-md);}
.m-title{font-size:10px;font-weight:900;color:var(--sensor);letter-spacing:.07em;margin-bottom:3px;font-family:'JetBrains Mono',monospace;}
.m-name{font-size:13px;font-weight:800;color:var(--text);margin-bottom:3px;}
.m-desc{font-size:11px;font-weight:600;color:var(--muted);line-height:1.4;}
.m-diff{display:inline-block;font-size:9px;font-weight:800;padding:2px 6px;border-radius:4px;margin-top:5px;font-family:'JetBrains Mono',monospace;}
.diff-easy{background:rgba(5,150,105,0.15);color:#047857;}
.diff-med{background:rgba(217,119,6,0.15);color:#b45309;}
.diff-hard{background:rgba(239,68,68,0.15);color:#b91c1c;}
.diff-sport{background:linear-gradient(135deg,rgba(251,191,36,0.2),rgba(245,124,0,0.15));color:#b45309;border:1px solid rgba(251,191,36,0.4);}

.cat-group{margin-bottom:12px;}
.cat-label{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;padding:5px 4px 7px;color:var(--muted);display:flex;align-items:center;gap:5px;}
.cat-dot{width:8px;height:8px;border-radius:50%;}
.sblock{display:block;cursor:grab;color:white;position:relative;margin-bottom:5px;user-select:none;transition:transform .1s,filter .1s;}
.sblock:hover{transform:scale(1.03);filter:brightness(1.08);}
.sblock svg.shape{position:absolute;top:0;left:0;width:100%;height:100%;}

.ws-block{position:absolute;cursor:grab;color:white;z-index:2;user-select:none;}
.ws-block svg.shape{position:absolute;top:0;left:0;width:100%;height:100%;}
.ws-block .del-btn{position:absolute;top:-7px;right:-7px;width:18px;height:18px;border-radius:50%;background:#EF4444;border:2px solid white;display:none;align-items:center;justify-content:center;font-size:11px;cursor:pointer;z-index:10;color:white;font-weight:900;line-height:1;box-shadow:var(--shadow);}

/* Block content header — sits in the top strip (first 32px) */
.blk-head{position:absolute;left:10px;right:10px;top:7px;height:32px;display:flex;align-items:center;gap:6px;z-index:1;pointer-events:none;font-size:11px;font-weight:800;}
.blk-head .label{white-space:nowrap;pointer-events:none;}
.blk-head .icon{font-size:13px;width:14px;text-align:center;flex-shrink:0;pointer-events:none;}

/* Scratch-style oval input pills */
.blk-input{font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;height:22px;width:48px;text-align:center;border:none;border-radius:11px;background:white;color:#333;padding:0 4px;outline:none;cursor:text;box-shadow:inset 0 1px 2px rgba(0,0,0,0.2);flex-shrink:0;pointer-events:auto;}
.blk-input:focus{box-shadow:inset 0 1px 2px rgba(0,0,0,0.2),0 0 0 2px rgba(255,255,255,0.7);}
.blk-input:invalid,.blk-input.over-limit{background:#ffcccc!important;color:#c00!important;}
.blk-input:disabled{opacity:0.95;cursor:grab;color:#333;}
.blk-input::-webkit-inner-spin-button,.blk-input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0;}
.blk-input[type=number]{-moz-appearance:textfield;}
.ws-block:hover .del-btn{display:flex;}
.ws-block.active-run{
  filter:drop-shadow(0 0 8px rgba(255,200,0,1)) drop-shadow(0 0 16px rgba(255,140,0,0.6));
  z-index:10;
}
.ws-block.skipped{opacity:0.3;}
.ws-block.in-chain{filter:drop-shadow(0 2px 6px rgba(30,50,80,0.25));}
/* Connection nub — visible joint between stacked blocks */
.ws-block.in-chain .blk-nub{display:block;}
.blk-nub{display:none;position:absolute;left:14px;top:-3px;width:20px;height:6px;border-radius:3px;background:rgba(255,255,255,0.3);pointer-events:none;z-index:5;}

.snap-indicator{position:absolute;pointer-events:none;z-index:3;border:2.5px dashed var(--ard-teal);background:rgba(16,167,170,0.15);border-radius:6px;box-shadow:0 0 12px rgba(16,167,170,0.35);animation:snapPulse 0.4s ease-in-out infinite alternate;}
.snap-dot{position:absolute;pointer-events:none;z-index:5;width:14px;height:14px;border-radius:50%;background:#FFC53D;box-shadow:0 0 10px #FFC53D,0 0 20px rgba(255,197,61,0.5);transform:translate(-50%,-50%);animation:dotPop 0.4s ease-in-out infinite alternate;}
@keyframes dotPop{from{transform:translate(-50%,-50%) scale(1);}to{transform:translate(-50%,-50%) scale(1.4);opacity:0.7;}}
@keyframes snapPulse{from{opacity:0.4}to{opacity:1}}

#ws-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;pointer-events:none;opacity:.3;}
#ws-hint .big{font-size:40px;}
#ws-hint p{font-size:13px;font-weight:700;margin-top:6px;color:var(--muted);}

#run-order{padding:8px 12px;border-top:1px solid var(--border);background:var(--panel);display:flex;gap:6px;align-items:center;flex-wrap:wrap;min-height:44px;flex-shrink:0;overflow-x:auto;}
.ro-label{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);white-space:nowrap;}
.ro-chip{font-size:10px;font-weight:800;padding:3px 8px;border-radius:20px;display:flex;align-items:center;gap:4px;cursor:pointer;white-space:nowrap;transition:all 0.2s;}
.ro-chip.active-run{
  animation:chipglow .4s ease-in-out infinite alternate;
  transform:scale(1.15);
  box-shadow:0 0 12px rgba(255,193,7,0.5);
}
@keyframes chipglow{from{filter:brightness(1)}to{filter:brightness(1.5) drop-shadow(0 0 6px gold)}}
.ro-arrow{font-size:10px;color:var(--muted);}

/* ===== EXECUTION FEEDBACK OVERLAY ===== */
#exec-overlay{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);background:rgba(10,15,25,0.92);border:1px solid rgba(16,167,170,0.3);border-radius:10px;padding:8px 16px;font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:700;color:white;display:none;align-items:center;gap:10px;pointer-events:none;z-index:20;backdrop-filter:blur(6px);box-shadow:0 4px 20px rgba(0,0,0,0.4),0 0 20px rgba(16,167,170,0.1);}
#exec-overlay.show{display:flex;}
.exec-icon{font-size:16px;}
.exec-cmd{color:#FFC53D;font-weight:900;}
.exec-bar-wrap{width:80px;height:4px;background:rgba(255,255,255,0.15);border-radius:2px;overflow:hidden;}
.exec-bar{height:100%;background:linear-gradient(90deg,#FFC53D,#00ff88);border-radius:2px;transition:width 0.1s linear;}
.exec-step{font-size:10px;opacity:0.6;}

#three-canvas{width:100%;height:100%;display:block;}
#sim-container{flex:1;position:relative;overflow:hidden;}

#dash{position:absolute;top:10px;right:10px;background:rgba(0,0,0,.78);border:1px solid rgba(255,255,255,0.1);border-radius:8px;padding:10px 12px;font-size:11px;font-weight:700;min-width:140px;backdrop-filter:blur(4px);font-family:'JetBrains Mono',monospace;color:white;}
.dt{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.07em;opacity:.55;margin-bottom:6px;color:#FFC53D;}
.dr{display:flex;justify-content:space-between;gap:10px;margin-bottom:3px;}
.dl{opacity:.6;}
.dv{font-weight:800;color:#FFC53D;}
.dv.var{color:#F472B6;}

#cam-ctrl{position:absolute;top:10px;left:10px;display:flex;gap:4px;background:rgba(0,0,0,.75);padding:4px;border-radius:8px;}
.cam-btn{font-size:11px;font-weight:800;padding:5px 10px;background:transparent;color:rgba(255,255,255,0.55);border:none;border-radius:5px;cursor:pointer;}
.cam-btn.active{background:#FFC53D;color:#241E3B;}
.cam-btn:hover:not(.active){background:rgba(255,255,255,0.1);color:white;}

#sim-status{padding:8px 12px;font-size:12px;font-weight:700;background:rgba(0,0,0,.4);color:white;min-height:34px;display:flex;align-items:center;gap:6px;font-family:'JetBrains Mono',monospace;}
.pulse{display:inline-block;width:8px;height:8px;border-radius:50%;background:#34D399;animation:pls 1s infinite;}
@keyframes pls{0%,100%{opacity:1}50%{opacity:.2}}

#robot-info{background:transparent;padding:0;font-size:10px;font-family:'JetBrains Mono',monospace;color:#FFC53D;flex-shrink:0;}

/* ===== COMPETITION HUD ===== */
#comp-hud{position:absolute;bottom:10px;right:10px;background:linear-gradient(135deg,rgba(0,0,0,0.88),rgba(20,10,40,0.92));border:2px solid rgba(251,191,36,0.6);border-radius:10px;padding:10px 14px;min-width:180px;font-family:'JetBrains Mono',monospace;color:white;box-shadow:0 4px 16px rgba(0,0,0,0.5),0 0 20px rgba(251,191,36,0.2);}
#comp-hud::before{content:'🏆 САЙЫС';display:block;font-size:10px;font-weight:900;letter-spacing:.12em;color:#FBBF24;margin-bottom:6px;border-bottom:1px solid rgba(251,191,36,0.3);padding-bottom:5px;}
.ch-row{display:flex;justify-content:space-between;gap:12px;font-size:11px;font-weight:700;margin-bottom:4px;}
.ch-k{opacity:.65;}
.ch-v{color:#FBBF24;font-weight:900;}
.ch-v.ch-big{font-size:16px;}
.ch-result{margin-top:8px;padding:8px 10px;border-radius:6px;font-size:12px;font-weight:800;text-align:center;animation:resultPop 0.4s ease-out;}
.ch-result.win{background:linear-gradient(135deg,#059669,#10b981);color:white;box-shadow:0 0 16px rgba(16,185,129,0.5);}
.ch-result.lose{background:linear-gradient(135deg,#991b1b,#dc2626);color:white;box-shadow:0 0 16px rgba(220,38,38,0.5);}
@keyframes resultPop{0%{transform:scale(0.7);opacity:0;}60%{transform:scale(1.1);}100%{transform:scale(1);opacity:1;}}
.ri-name{font-weight:800;font-size:11px;color:white;margin-bottom:2px;}

@media (max-width: 1100px) {
  #sim-wrap{width:460px;}
}

/* ===== ROBOT BUILDER MODAL ===== */
#builder-overlay{position:fixed;inset:0;background:rgba(10,15,25,0.75);backdrop-filter:blur(6px);z-index:8000;display:none;align-items:center;justify-content:center;padding:20px;}
#builder-overlay.show{display:flex;}
#builder-modal{background:var(--panel);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,0.4);width:100%;max-width:980px;max-height:92vh;display:flex;flex-direction:column;overflow:hidden;}
#builder-head{padding:14px 20px;background:linear-gradient(90deg,rgba(16,167,170,0.12),rgba(124,58,237,0.08));border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;}
#builder-head .bh-title{font-size:17px;font-weight:900;color:var(--text);font-family:'JetBrains Mono',monospace;}
#builder-head .bh-title .acc{background:linear-gradient(135deg,var(--ard-teal),var(--sensor));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
#builder-head .bh-sub{font-size:11px;font-weight:700;color:var(--muted);}
#builder-close{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:16px;font-weight:900;width:32px;height:32px;border-radius:8px;border:none;background:var(--panel2);color:var(--text);cursor:pointer;transition:all .15s;}
#builder-close:hover{background:#EF4444;color:white;}

#builder-body{display:flex;flex:1;overflow:hidden;min-height:420px;}
#builder-catalog{flex:1;overflow-y:auto;padding:14px 18px;border-right:1px solid var(--border);background:var(--panel);}
#builder-catalog::-webkit-scrollbar{width:6px;}
#builder-catalog::-webkit-scrollbar-thumb{background:rgba(30,50,80,0.2);border-radius:3px;}
#builder-preview{width:380px;background:#1a1f2e;position:relative;display:flex;flex-direction:column;flex-shrink:0;}
#builder-canvas{flex:1;width:100%;display:block;}
#builder-preview-info{padding:10px 14px;background:rgba(0,0,0,.5);color:white;font-family:'JetBrains Mono',monospace;font-size:10px;border-top:1px solid rgba(255,255,255,0.08);}
.bpi-row{display:flex;justify-content:space-between;margin-bottom:3px;opacity:.85;}
.bpi-k{opacity:.55;}
.bpi-v{color:#FFC53D;font-weight:700;}
.bpi-total{margin-top:6px;padding-top:6px;border-top:1px solid rgba(255,255,255,0.12);font-size:11px;}
.bpi-total .bpi-v{color:#FBBF24;}

.bcat{margin-bottom:14px;}
.bcat-head{display:flex;align-items:center;gap:8px;margin-bottom:8px;}
.bcat-title{font-size:11px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--text);font-family:'JetBrains Mono',monospace;}
.bcat-dot{width:10px;height:10px;border-radius:50%;}
.bcat-hint{font-size:10px;font-weight:600;color:var(--muted);margin-left:auto;}
.bcat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:7px;}
.bpart{position:relative;padding:10px 9px;background:var(--panel2);border:2px solid transparent;border-radius:9px;cursor:pointer;transition:all .15s;text-align:left;user-select:none;}
.bpart:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);background:white;}
.bpart.selected{border-color:var(--ard-teal);background:rgba(16,167,170,0.08);box-shadow:0 0 0 3px rgba(16,167,170,0.15);}
.bpart.selected::after{content:'✓';position:absolute;top:5px;right:6px;width:18px;height:18px;border-radius:50%;background:var(--ard-teal);color:white;font-size:11px;font-weight:900;display:flex;align-items:center;justify-content:center;}
.bpart.multi.selected{border-color:var(--variable);background:rgba(219,39,119,0.06);box-shadow:0 0 0 3px rgba(219,39,119,0.12);}
.bpart.multi.selected::after{background:var(--variable);}
.bp-icon{font-size:22px;display:block;margin-bottom:4px;}
.bp-name{font-size:11px;font-weight:800;color:var(--text);line-height:1.2;margin-bottom:2px;}
.bp-spec{font-size:9px;font-weight:600;color:var(--muted);font-family:'JetBrains Mono',monospace;}
.bp-price{font-size:9px;font-weight:800;color:var(--math);margin-top:3px;font-family:'JetBrains Mono',monospace;}

#builder-foot{padding:12px 20px;border-top:1px solid var(--border);background:var(--panel2);display:flex;align-items:center;gap:10px;}
.bf-status{font-size:11px;font-weight:700;color:var(--muted);flex:1;}
.bf-status.ok{color:var(--math);}
.bf-btn{font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;padding:8px 16px;border-radius:8px;border:none;cursor:pointer;transition:all .15s;}
.bf-btn.primary{background:var(--math);color:white;box-shadow:var(--shadow);}
.bf-btn.primary:hover{background:#047857;}
.bf-btn.primary:disabled{background:#9ca3af;cursor:not-allowed;opacity:.6;}
.bf-btn.secondary{background:var(--panel);color:var(--text);border:1px solid var(--border);}
.bf-btn.secondary:hover{background:white;}

.tbtn.build{background:rgba(16,167,170,0.2);color:#FFC53D;border-color:rgba(16,167,170,0.35);}
.tbtn.build:hover{background:rgba(16,167,170,0.35);}
.tbtn.lego{background:rgba(16,167,170,0.2);color:#FFC53D;border-color:rgba(16,167,170,0.35);}
.tbtn.lego:hover{background:rgba(16,167,170,0.35);}

/* ===== LEGO MINDSTORMS MODAL ===== */
#lego-overlay{position:fixed;inset:0;background:rgba(5,10,20,0.85);backdrop-filter:blur(8px);z-index:8000;display:none;align-items:center;justify-content:center;padding:16px;}
#lego-overlay.show{display:flex;}
#lego-modal{background:var(--panel);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,0.5);width:100%;max-width:1200px;height:92vh;display:flex;flex-direction:column;overflow:hidden;}
#lego-head{padding:12px 20px;background:linear-gradient(90deg,rgba(217,30,24,0.1),rgba(245,124,0,0.08));border-bottom:1px solid var(--border);display:flex;align-items:center;gap:14px;}
#lego-title{font-size:17px;font-weight:900;font-family:'JetBrains Mono',monospace;}
#lego-title .acc{background:linear-gradient(135deg,#D91E18,#F57C00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
#lego-sub{font-size:11px;color:var(--muted);font-weight:700;}
.lego-mode-tabs{display:flex;gap:4px;margin-left:18px;background:var(--panel2);padding:3px;border-radius:8px;}
.lego-mode-tab{font-family:'Nunito',sans-serif;font-size:11px;font-weight:800;padding:6px 14px;background:transparent;border:none;border-radius:6px;cursor:pointer;color:var(--muted);transition:all .15s;}
.lego-mode-tab.active{background:white;color:var(--text);box-shadow:var(--shadow);}
#lego-close{margin-left:auto;font-family:'JetBrains Mono',monospace;font-size:16px;font-weight:900;width:32px;height:32px;border-radius:8px;border:none;background:var(--panel2);color:var(--text);cursor:pointer;}
#lego-close:hover{background:#EF4444;color:white;}

#lego-body{display:flex;flex:1;overflow:hidden;min-height:0;}
#lego-catalog{width:240px;background:var(--panel);border-right:1px solid var(--border);overflow-y:auto;padding:12px 14px;flex-shrink:0;}
#lego-catalog::-webkit-scrollbar{width:5px;}
#lego-catalog::-webkit-scrollbar-thumb{background:rgba(30,50,80,0.2);border-radius:3px;}
.lego-cat{margin-bottom:14px;}
.lego-cat-title{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-family:'JetBrains Mono',monospace;margin-bottom:6px;display:flex;align-items:center;gap:6px;}
.lego-cat-title::before{content:'';width:8px;height:8px;border-radius:50%;background:currentColor;}
.lego-cat.cat-compute .lego-cat-title{color:#1a73e8;}
.lego-cat.cat-motor .lego-cat-title{color:#fbbc04;}
.lego-cat.cat-sensor .lego-cat-title{color:#ea4335;}
.lego-cat.cat-structural .lego-cat-title{color:#5f6368;}
.lego-cat.cat-gears .lego-cat-title{color:#7c3aed;}
.lego-cat.cat-connectors .lego-cat-title{color:#059669;}
.lego-cat.cat-movement .lego-cat-title{color:#db2777;}
.lego-part{display:flex;align-items:center;gap:10px;padding:7px 9px;background:var(--panel2);border:1.5px solid transparent;border-radius:7px;cursor:pointer;margin-bottom:4px;transition:all .12s;user-select:none;}
.lego-part:hover{background:white;border-color:var(--border);transform:translateX(2px);}
.lego-part.active{background:rgba(26,115,232,0.08);border-color:#1a73e8;}
.lego-part .lp-icon{font-size:18px;flex-shrink:0;}
.lego-part .lp-info{flex:1;min-width:0;}
.lego-part .lp-name{font-size:11px;font-weight:800;color:var(--text);line-height:1.15;}
.lego-part .lp-spec{font-size:9px;font-weight:600;color:var(--muted);font-family:'JetBrains Mono',monospace;}
.lego-part .lp-add{width:22px;height:22px;border-radius:50%;background:var(--ard-teal);color:white;border:none;font-size:14px;font-weight:900;cursor:pointer;flex-shrink:0;line-height:1;display:flex;align-items:center;justify-content:center;}
.lego-part .lp-add:hover{background:#0A7E80;}

#lego-stage{flex:1;background:#1a1f2e;position:relative;display:flex;flex-direction:column;min-width:0;}
#lego-canvas{flex:1;width:100%;display:block;}
#lego-hud{position:absolute;top:12px;left:12px;background:rgba(0,0,0,0.75);color:white;padding:8px 12px;border-radius:8px;font-family:'JetBrains Mono',monospace;font-size:10px;display:flex;flex-direction:column;gap:2px;}
.lh-row{display:flex;gap:10px;}
.lh-k{opacity:.55;}
.lh-v{color:#FBBF24;font-weight:700;}
#lego-cam-ctrl{position:absolute;top:12px;right:12px;background:rgba(0,0,0,0.75);padding:4px;border-radius:8px;display:flex;gap:3px;}
.lc-btn{font-size:10px;font-weight:800;padding:5px 10px;background:transparent;color:rgba(255,255,255,0.55);border:none;border-radius:5px;cursor:pointer;}
.lc-btn.active{background:#D91E18;color:white;}
.lc-btn:hover:not(.active){background:rgba(255,255,255,0.1);color:white;}

#lego-tutorial{position:absolute;bottom:70px;left:12px;right:12px;background:linear-gradient(135deg,rgba(26,115,232,0.95),rgba(245,124,0,0.9));color:white;padding:12px 16px;border-radius:10px;box-shadow:0 6px 20px rgba(0,0,0,0.4);display:none;}
#lego-tutorial.show{display:block;}
.lt-step{font-size:10px;font-weight:900;letter-spacing:.08em;text-transform:uppercase;opacity:.8;font-family:'JetBrains Mono',monospace;}
.lt-task{font-size:14px;font-weight:800;margin:4px 0 6px;}
.lt-hint{font-size:11px;font-weight:600;opacity:.9;line-height:1.4;}
.lt-controls{display:flex;gap:8px;margin-top:10px;}
.lt-btn{font-family:'Nunito',sans-serif;font-size:11px;font-weight:800;padding:6px 14px;border:none;border-radius:6px;cursor:pointer;}
.lt-btn.next{background:white;color:#1a73e8;}
.lt-btn.skip{background:rgba(255,255,255,0.2);color:white;}

#lego-info{position:absolute;bottom:12px;left:12px;right:12px;background:rgba(0,0,0,0.85);color:white;padding:10px 14px;border-radius:8px;display:flex;gap:14px;align-items:flex-start;font-family:'Nunito',sans-serif;max-height:140px;overflow-y:auto;}
#lego-info.hidden{display:none;}
.li-icon{font-size:30px;flex-shrink:0;}
.li-body{flex:1;min-width:0;}
.li-name{font-size:13px;font-weight:900;margin-bottom:3px;}
.li-spec{font-size:10px;font-weight:700;opacity:0.65;font-family:'JetBrains Mono',monospace;margin-bottom:5px;}
.li-desc{font-size:11px;font-weight:600;line-height:1.4;opacity:0.9;}
.li-port{display:inline-block;font-size:9px;font-weight:900;padding:2px 6px;border-radius:4px;background:#FBBF24;color:#1a1a1a;margin-right:4px;font-family:'JetBrains Mono',monospace;}

#lego-placed{position:absolute;top:12px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,0.75);color:white;padding:6px 12px;border-radius:20px;font-family:'JetBrains Mono',monospace;font-size:10px;font-weight:700;}
#lego-placed .lp-count{color:#FBBF24;margin:0 4px;}

#lego-foot{padding:10px 20px;border-top:1px solid var(--border);background:var(--panel2);display:flex;align-items:center;gap:10px;flex-shrink:0;}
.lf-status{font-size:11px;font-weight:700;color:var(--muted);flex:1;}
.lf-btn{font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;padding:8px 16px;border-radius:8px;border:none;cursor:pointer;}
.lf-btn.primary{background:linear-gradient(135deg,#D91E18,#F57C00);color:white;box-shadow:var(--shadow);}
.lf-btn.primary:hover{filter:brightness(1.1);}
.lf-btn.primary:disabled{background:#9ca3af;cursor:not-allowed;opacity:.6;filter:none;}
.lf-btn.secondary{background:var(--panel);color:var(--text);border:1px solid var(--border);}
.lf-btn.secondary:hover{background:white;}
.lf-btn.danger{background:transparent;color:#EF4444;border:1px solid #EF4444;}
.lf-btn.danger:hover{background:#EF4444;color:white;}

.rp-btn.lego-bot{background:rgba(217,30,24,0.08);}
.rp-btn.lego-bot.active{background:rgba(217,30,24,0.15);color:#D91E18;border-color:#D91E18;}

.rp-btn.my-bot{background:rgba(124,58,237,0.1);}
.rp-btn.my-bot.active{background:rgba(124,58,237,0.15);color:var(--control);border-color:var(--control);}

@media (max-width: 780px) {
  #builder-body{flex-direction:column;}
  #builder-preview{width:100%;height:240px;border-top:1px solid var(--border);}
}

/* ===== MAP PICKER MODAL ===== */
#map-overlay{position:fixed;inset:0;background:rgba(10,15,25,0.82);backdrop-filter:blur(8px);z-index:8000;display:none;align-items:flex-start;justify-content:center;padding:30px 20px;overflow-y:auto;}
#map-overlay.show{display:flex;}
#map-modal{background:#f0f2f7;border-radius:18px;box-shadow:0 24px 80px rgba(0,0,0,0.45);width:100%;max-width:1100px;overflow:hidden;margin:auto;}
#map-modal-head{padding:16px 24px;background:white;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;}
#map-modal-head .mmh-title{font-size:18px;font-weight:900;color:var(--text);font-family:'JetBrains Mono',monospace;}
#map-modal-head .mmh-title .acc{background:linear-gradient(135deg,var(--ard-teal),var(--sensor));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
#map-modal-close{margin-left:auto;font-size:16px;font-weight:900;width:34px;height:34px;border-radius:8px;border:none;background:var(--panel2);color:var(--text);cursor:pointer;font-family:'JetBrains Mono',monospace;}
#map-modal-close:hover{background:#EF4444;color:white;}
#map-modal-body{padding:20px 24px;}
.map-section{margin-bottom:20px;}
.map-section-title{font-size:11px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:12px;display:flex;align-items:center;gap:8px;font-family:'JetBrains Mono',monospace;}
.map-section-title::before{content:'';display:inline-block;width:10px;height:10px;border-radius:50%;}
.map-section.easy .map-section-title::before{background:#22c55e;}
.map-section.med .map-section-title::before{background:#f59e0b;}
.map-section.hard .map-section-title::before{background:#ef4444;}
.map-section.sport .map-section-title::before{background:linear-gradient(135deg,#FBBF24,#F97316);}
.map-section.custom .map-section-title::before{background:linear-gradient(135deg,#7F77DD,#5DCAA5);}
.tbtn.createmap{background:rgba(127,119,221,.18);color:#A89EFF;border-color:rgba(127,119,221,.35);}
.tbtn.createmap:hover{background:rgba(127,119,221,.32);}
.map-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;}
.map-card{background:white;border-radius:12px;overflow:hidden;cursor:pointer;border:2.5px solid transparent;transition:all .18s;box-shadow:0 2px 8px rgba(30,50,80,0.09);}
.map-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(30,50,80,0.16);}
.map-card.selected{border-color:var(--ard-teal);box-shadow:0 0 0 3px rgba(16,167,170,0.2),0 6px 20px rgba(16,167,170,0.15);}
.map-card-thumb{width:100%;height:100px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;font-size:48px;}
.map-card-thumb canvas{width:100%!important;height:100%!important;}
.map-card-info{padding:8px 10px 10px;}
.map-card-name{font-size:12px;font-weight:800;color:var(--text);text-align:center;line-height:1.2;}
.map-card-diff{display:inline-flex;font-size:9px;font-weight:800;padding:2px 7px;border-radius:10px;margin:4px auto 0;letter-spacing:.04em;font-family:'JetBrains Mono',monospace;}
.map-card-info-wrap{display:flex;flex-direction:column;align-items:center;}
.map-card-badges{display:flex;gap:4px;justify-content:center;margin-top:4px;}
.map-badge{font-size:9px;font-weight:800;padding:2px 6px;border-radius:5px;background:#1a1f2e;color:#FFC53D;font-family:'JetBrains Mono',monospace;letter-spacing:.02em;}
.map-badge.vr{background:rgba(16,167,170,0.12);color:var(--ard-teal);}
.map-badge.robot{background:rgba(8,145,178,0.1);color:var(--sensor);}
/* Map thumbnail mini art */
.thumb-grid{background:linear-gradient(135deg,#e8edf5,#dde3f0);display:flex;align-items:center;justify-content:center;font-size:36px;}
.thumb-line{background:linear-gradient(135deg,#f0f4ff,#e4eaf8);position:relative;}
.thumb-line::after{content:'';position:absolute;left:50%;top:0;bottom:0;width:8px;transform:translateX(-50%);background:linear-gradient(to bottom,#fbbf24,#f59e0b);}
.thumb-maze{background:linear-gradient(135deg,#fff,#f5f7ff);display:flex;align-items:center;justify-content:center;font-size:42px;}
.thumb-race{background:linear-gradient(135deg,#1a2040,#2a3060);display:flex;align-items:center;justify-content:center;font-size:40px;}

.thumb-generic{background:linear-gradient(135deg,#e0e7ff,#dbeafe);display:flex;align-items:center;justify-content:center;font-size:40px;}

/* ===== ROBOT PICKER MODAL ===== */
#robot-overlay{position:fixed;inset:0;background:rgba(10,15,25,0.82);backdrop-filter:blur(8px);z-index:8000;display:none;align-items:center;justify-content:center;padding:20px;}
#robot-overlay.show{display:flex;}
#robot-modal{background:#f0f2f7;border-radius:18px;box-shadow:0 24px 80px rgba(0,0,0,0.45);width:100%;max-width:860px;overflow:hidden;}
#robot-modal-head{padding:16px 24px;background:white;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px;}
#robot-modal-head .rmh-title{font-size:18px;font-weight:900;color:var(--text);font-family:'JetBrains Mono',monospace;}
#robot-modal-head .rmh-title .acc{background:linear-gradient(135deg,var(--sensor),var(--control));-webkit-background-clip:text;-webkit-text-fill-color:transparent;}
#robot-modal-close{margin-left:auto;font-size:16px;font-weight:900;width:34px;height:34px;border-radius:8px;border:none;background:var(--panel2);color:var(--text);cursor:pointer;font-family:'JetBrains Mono',monospace;}
#robot-modal-close:hover{background:#EF4444;color:white;}
#robot-modal-body{padding:20px 24px;}
.robot-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px;}
.robot-card{background:white;border-radius:12px;overflow:hidden;cursor:pointer;border:2.5px solid transparent;transition:all .18s;box-shadow:0 2px 8px rgba(30,50,80,0.09);}
.robot-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(30,50,80,0.16);}
.robot-card.selected{border-color:var(--sensor);box-shadow:0 0 0 3px rgba(8,145,178,0.2);}
.robot-card-thumb{width:100%;height:110px;display:flex;align-items:center;justify-content:center;font-size:54px;background:linear-gradient(135deg,#1a1f2e,#2a3050);}
.robot-card-info{padding:10px 10px 12px;text-align:center;}
.robot-card-name{font-size:13px;font-weight:800;color:var(--text);margin-bottom:3px;}
.robot-card-spec{font-size:9px;font-weight:700;color:var(--muted);font-family:'JetBrains Mono',monospace;line-height:1.4;}
.robot-card-badge{display:inline-block;font-size:9px;font-weight:800;padding:2px 7px;border-radius:5px;margin-top:5px;background:rgba(8,145,178,0.1);color:var(--sensor);font-family:'JetBrains Mono',monospace;}
.robot-card.special{border-color:rgba(124,58,237,0.3);}
.robot-card.special .robot-card-badge{background:rgba(124,58,237,0.1);color:var(--control);}
#robot-modal-foot{padding:12px 24px;border-top:1px solid var(--border);background:white;display:flex;align-items:center;gap:10px;}
.rmf-hint{font-size:11px;font-weight:700;color:var(--muted);flex:1;}
.rmf-btn{font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;padding:9px 20px;border-radius:8px;border:none;cursor:pointer;}
.rmf-btn.primary{background:var(--sensor);color:white;}
.rmf-btn.primary:hover{background:#0A7E80;}
.rmf-btn.secondary{background:var(--panel2);color:var(--text);border:1px solid var(--border);}
.rmf-btn.secondary:hover{background:white;}
/* small topbar button for map */
.tbtn.mapbtn{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.85);border:1px solid rgba(255,255,255,0.15);display:flex;align-items:center;gap:5px;min-width:130px;max-width:130px;}
.tbtn.mapbtn:hover{background:rgba(255,255,255,0.15);}
.tbtn.robotbtn{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.85);border:1px solid rgba(255,255,255,0.15);min-width:120px;max-width:120px;overflow:hidden;display:flex;align-items:center;gap:5px;}
.tbtn.robotbtn:hover{background:rgba(255,255,255,0.15);}

/* ===== AUTH STATE ===== */
/* currentUser: null = гость, object = кіргі */
body { --auth-accent: #10A7AA; }

/* ===== LANDING OVERLAY — "Construction Toy" redesign ===== */
:root{
  --lp-paper:#FBEEDB; --lp-paper2:#FFF8EC;
  --lp-ink:#241E3B; --lp-ink2:#5C5570;
  --lp-brand:#10A7AA; --lp-coral:#FF6B5B; --lp-sun:#FFC53D;
  --lp-grass:#4CB944; --lp-sky:#3D8BFF;
  --lp-r:20px;
  --lp-sh-sm:4px 4px 0 var(--lp-ink);
  --lp-sh:6px 6px 0 var(--lp-ink);
  --lp-sh-lg:9px 9px 0 var(--lp-ink);
}
#landing-overlay{
  position:fixed; inset:0; z-index:9000;
  background-color:var(--lp-paper);
  background-image:radial-gradient(circle at center, rgba(36,30,59,0.05) 1.7px, transparent 1.8px);
  background-size:24px 24px;
  overflow-y:auto;
  font-family:'Nunito',sans-serif; color:var(--lp-ink);
  display:flex; flex-direction:column;
  transition:opacity .4s ease, transform .4s ease;
}
#landing-overlay::before{
  content:''; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(circle at 12% 80%, rgba(255,197,61,0.20) 0, transparent 26%),
    radial-gradient(circle at 88% 14%, rgba(16,167,170,0.16) 0, transparent 30%),
    radial-gradient(circle at 80% 86%, rgba(255,107,91,0.12) 0, transparent 24%);
}
#landing-overlay > *{ position:relative; z-index:1; }
#landing-overlay.hiding{ opacity:0; transform:translateY(-20px); pointer-events:none; }
#landing-overlay h1,#landing-overlay h2,.lp-logo,.lp-card-name{
  font-family:'Rubik','Nunito',system-ui,sans-serif;
}

/* NAV */
.lp-nav{
  position:sticky; top:0; z-index:200;
  background:var(--lp-paper2);
  border-bottom:3px solid var(--lp-ink);
  padding:0 26px; display:flex; align-items:center; gap:10px;
  height:64px; flex-shrink:0;
}
.lp-logo{
  font-family:'Rubik','Nunito',sans-serif; font-size:20px; font-weight:800;
  color:var(--lp-ink); letter-spacing:-.01em; margin-right:auto;
  display:flex; align-items:center; gap:11px; cursor:pointer;
}
.lp-logo-icon{
  width:38px; height:38px; border-radius:11px;
  background:var(--lp-brand); border:3px solid var(--lp-ink);
  box-shadow:var(--lp-sh-sm);
  display:flex; align-items:center; justify-content:center;
  font-family:'Rubik',sans-serif; font-size:19px; font-weight:800; color:#fff;
  transform:rotate(-4deg);
}
.lp-nav-user{ display:flex; align-items:center; gap:9px; font-size:14px; font-weight:800; color:var(--lp-ink); }
.lp-nav-avatar{
  width:36px; height:36px; border-radius:50%;
  background:var(--lp-sun); border:3px solid var(--lp-ink);
  display:flex; align-items:center; justify-content:center;
  font-size:15px; color:var(--lp-ink); font-weight:800; flex-shrink:0;
}
.lp-nav-btn{
  font-family:'Rubik','Nunito',sans-serif; font-size:14px; font-weight:700;
  padding:9px 16px; border-radius:12px; border:3px solid var(--lp-ink); cursor:pointer;
  transition:transform .12s, box-shadow .12s, background .12s;
  display:flex; align-items:center; gap:6px; box-shadow:var(--lp-sh-sm);
  background:#fff; color:var(--lp-ink);
}
.lp-nav-btn:hover{ transform:translate(-2px,-2px); box-shadow:6px 6px 0 var(--lp-ink); }
.lp-nav-btn:active{ transform:translate(2px,2px); box-shadow:1px 1px 0 var(--lp-ink); }
.lp-nav-btn.ghost{ background:#fff; }
.lp-nav-btn.primary{ background:var(--lp-brand); color:#fff; }
.lp-nav-btn.danger{ background:var(--lp-coral); color:#fff; }

/* ===== AUTH MODAL ===== */
#auth-overlay{
  position:fixed; inset:0; z-index:10000;
  background:rgba(36,30,59,0.55); backdrop-filter:blur(3px);
  display:none; align-items:center; justify-content:center; padding:20px;
}
#auth-overlay.show{ display:flex; }
#auth-modal{
  position:relative; background:var(--lp-paper2);
  border:3px solid var(--lp-ink); border-radius:24px;
  box-shadow:10px 10px 0 var(--lp-ink);
  width:100%; max-width:430px; overflow:hidden;
  animation:authPop .26s cubic-bezier(.34,1.4,.5,1);
  font-family:'Nunito',sans-serif;
}
@keyframes authPop{ from{opacity:0; transform:translateY(16px) scale(.97);} to{opacity:1; transform:none;} }
.auth-head{
  background:var(--lp-brand); padding:26px 28px 22px; text-align:center;
  border-bottom:3px solid var(--lp-ink);
}
.auth-head h2{ font-family:'Rubik',sans-serif; font-size:24px; font-weight:800; color:#fff; margin-bottom:4px; letter-spacing:-.01em; }
.auth-head p{ font-size:13px; font-weight:700; color:rgba(255,255,255,0.88); }
.auth-tabs{ display:flex; gap:10px; padding:16px 22px 0; }
.auth-tab{
  flex:1; padding:11px; font-family:'Rubik','Nunito',sans-serif; font-size:14px; font-weight:700;
  background:#fff; border:3px solid var(--lp-ink); border-radius:12px; cursor:pointer;
  color:var(--lp-ink); transition:all .12s; box-shadow:3px 3px 0 var(--lp-ink);
}
.auth-tab.active{ background:var(--lp-sun); transform:translate(-1px,-1px); box-shadow:4px 4px 0 var(--lp-ink); }
.auth-body{ padding:18px 24px 26px; }
.auth-field{ margin-bottom:14px; }
.auth-field label{ display:block; font-size:12px; font-weight:800; color:var(--lp-ink2); margin-bottom:7px; }
.auth-field input, .auth-field select{
  width:100%; padding:12px 14px; border:3px solid var(--lp-ink); border-radius:12px;
  font-family:'Nunito',sans-serif; font-size:15px; font-weight:600; color:var(--lp-ink);
  outline:none; background:#fff; transition:box-shadow .12s, transform .1s;
}
.auth-field input::placeholder{ color:#aba6bb; }
.auth-field input:focus, .auth-field select:focus{ box-shadow:4px 4px 0 var(--lp-sun); transform:translate(-1px,-1px); }
.auth-submit{
  width:100%; padding:14px; background:var(--lp-coral); color:#fff;
  border:3px solid var(--lp-ink); border-radius:14px; cursor:pointer;
  font-family:'Rubik','Nunito',sans-serif; font-size:16px; font-weight:700;
  box-shadow:var(--lp-sh-sm); transition:all .12s; margin-top:4px;
}
.auth-submit:hover{ transform:translate(-2px,-2px); box-shadow:6px 6px 0 var(--lp-ink); }
.auth-submit:active{ transform:translate(2px,2px); box-shadow:1px 1px 0 var(--lp-ink); }
.auth-error{
  font-size:13px; font-weight:700; color:#fff; background:var(--lp-coral);
  border:3px solid var(--lp-ink); border-radius:10px; padding:10px 12px; margin-bottom:14px; display:none;
}
.auth-error.show{ display:block; }
.auth-close-btn{
  position:absolute; top:14px; right:14px; width:34px; height:34px; border-radius:10px;
  background:#fff; border:3px solid var(--lp-ink); color:var(--lp-ink); font-size:15px; font-weight:800; cursor:pointer;
}

/* ===== HERO ===== */
.lp-hero{ padding:60px 28px 26px; text-align:center; position:relative; flex-shrink:0; }
.lp-grid-bg{ display:none; }
.lp-hero-content{ position:relative; z-index:1; max-width:780px; margin:0 auto; }
.lp-badge{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--lp-sun); border:3px solid var(--lp-ink); color:var(--lp-ink);
  font-family:'Rubik','Nunito',sans-serif; font-size:12px; font-weight:700; letter-spacing:.02em;
  padding:7px 16px; border-radius:30px; box-shadow:var(--lp-sh-sm);
  margin-bottom:24px; transform:rotate(-1.6deg); animation:lpPop .5s ease both;
}
.lp-hero h1{
  font-size:clamp(30px,5.4vw,58px); font-weight:800; color:var(--lp-ink);
  line-height:1.08; margin-bottom:18px; letter-spacing:-.02em; animation:lpPop .5s .08s ease both;
}
.lp-hero h1 span{
  color:#fff; background:var(--lp-coral); border:3px solid var(--lp-ink); border-radius:12px;
  padding:0 12px; box-shadow:var(--lp-sh-sm); display:inline-block;
  transform:rotate(-1.6deg); margin:0 3px;
}
.lp-hero p{
  font-size:17px; font-weight:600; color:var(--lp-ink2); max-width:520px;
  margin:0 auto 30px; line-height:1.6; animation:lpPop .5s .16s ease both;
}
.lp-hero-btns{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; animation:lpPop .5s .24s ease both; }
.lp-hero-btn{
  font-family:'Rubik','Nunito',sans-serif; font-size:16px; font-weight:700;
  padding:14px 28px; border-radius:15px; border:3px solid var(--lp-ink); cursor:pointer;
  display:inline-flex; align-items:center; gap:9px; box-shadow:var(--lp-sh);
  transition:transform .12s, box-shadow .12s;
}
.lp-hero-btn:hover{ transform:translate(-3px,-3px); box-shadow:9px 9px 0 var(--lp-ink); }
.lp-hero-btn:active{ transform:translate(3px,3px); box-shadow:2px 2px 0 var(--lp-ink); }
.lp-hero-btn.main{ background:var(--lp-brand); color:#fff; }
.lp-hero-btn.outline{ background:#fff; color:var(--lp-ink); }
@keyframes lpPop{ from{opacity:0; transform:translateY(16px);} to{opacity:1; transform:none;} }

.lp-robot{ display:block; margin:36px auto 0; width:min(228px,60vw); height:auto; animation:lpFloat 4.5s ease-in-out infinite; }
@keyframes lpFloat{ 0%,100%{transform:translateY(0) rotate(-1.2deg);} 50%{transform:translateY(-12px) rotate(1.2deg);} }

/* ===== SECTION + CARDS ===== */
.lp-section{ max-width:1000px; margin:0 auto; padding:14px 26px 40px; }
.lp-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
@media(max-width:780px){ .lp-grid{ grid-template-columns:1fr; } }
.lp-card{
  background:var(--lp-paper2); border:3px solid var(--lp-ink); border-radius:22px;
  overflow:hidden; cursor:pointer; display:flex; flex-direction:column;
  box-shadow:var(--lp-sh); position:relative; color:var(--lp-ink); text-decoration:none;
  transition:transform .15s, box-shadow .15s; animation:lpPop .5s ease both;
}
.lp-card:hover{ transform:translate(-4px,-4px); box-shadow:11px 11px 0 var(--lp-ink); }
.lp-card::after{ display:none; }
.lp-card:nth-child(1){animation-delay:.10s}
.lp-card:nth-child(2){animation-delay:.20s}
.lp-card:nth-child(3){animation-delay:.30s}
.lp-card-img{
  height:150px; display:flex; align-items:center; justify-content:center;
  position:relative; overflow:hidden; border-bottom:3px solid var(--lp-ink);
}
.lp-card-img svg{ width:80px; height:80px; }
.lp-bg-s{ display:none; }
.lp-card-emoji{ display:none; }
.lp-t-dark   .lp-card-img{ background:var(--lp-brand); }
.lp-t-purple .lp-card-img{ background:var(--lp-coral); }
.lp-t-orange .lp-card-img{ background:var(--lp-sun); }
.lp-card-body{ padding:20px 22px 22px; flex:1; display:flex; flex-direction:column; }
.lp-card-name{ font-size:19px; font-weight:800; color:var(--lp-ink); margin-bottom:8px; line-height:1.2; }
.lp-card-desc{ font-size:14px; font-weight:600; color:var(--lp-ink2); line-height:1.55; flex:1; margin-bottom:18px; }
.lp-card-btn{
  display:flex; align-items:center; justify-content:center; gap:8px; width:100%; padding:12px;
  background:var(--lp-ink); color:#fff; border:none; border-radius:13px; cursor:pointer;
  font-family:'Rubik','Nunito',sans-serif; font-size:15px; font-weight:700; transition:filter .12s;
}
.lp-card:hover .lp-card-btn{ filter:brightness(1.22); }

/* ===== CTA ===== */
.lp-cta{ position:relative; margin:10px 26px 0; }
.lp-cta-inner{
  max-width:1000px; margin:0 auto; background:var(--lp-grass);
  border:3px solid var(--lp-ink); border-radius:26px; box-shadow:var(--lp-sh-lg);
  padding:46px 30px; text-align:center;
}
.lp-cta h2{ font-family:'Rubik','Nunito',sans-serif; font-size:clamp(24px,3.4vw,36px); font-weight:800; color:#fff; letter-spacing:-.02em; margin-bottom:10px; }
.lp-cta p{ font-size:16px; font-weight:600; color:rgba(255,255,255,0.94); margin-bottom:24px; }
.lp-cta-btn{
  display:inline-flex; align-items:center; gap:9px; background:#fff; color:var(--lp-ink);
  font-family:'Rubik','Nunito',sans-serif; font-size:17px; font-weight:700;
  padding:15px 34px; border-radius:15px; border:3px solid var(--lp-ink); cursor:pointer;
  box-shadow:var(--lp-sh); transition:transform .12s, box-shadow .12s;
}
.lp-cta-btn:hover{ transform:translate(-3px,-3px); box-shadow:9px 9px 0 var(--lp-ink); }
.lp-cta-btn:active{ transform:translate(3px,3px); box-shadow:2px 2px 0 var(--lp-ink); }

/* ===== FOOTER ===== */
.lp-footer{
  margin-top:auto; background:var(--lp-paper2); border-top:3px solid var(--lp-ink);
  padding:22px 30px; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:12px;
}
.lp-footer-logo{ font-family:'Rubik','Nunito',sans-serif; font-size:16px; font-weight:800; color:var(--lp-ink); }
.lp-footer-copy{ font-size:13px; font-weight:700; color:var(--lp-ink2); }

/* ===== HIDDEN (filter state, used by JS) ===== */
.lp-card.lp-hidden { opacity:.18!important; pointer-events:none; transform:scale(0.96)!important; }

/* ===== SENSOR SYSTEM ===== */
.sensor-slot {
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2px;
  width:54px;height:52px;
  border-radius:10px;
  font-family:'JetBrains Mono',monospace;
  font-size:8px;font-weight:700;
  border:1px dashed rgba(255,255,255,0.2);
  color:rgba(255,255,255,0.3);
  cursor:pointer;transition:all .18s;
  position:relative;flex-shrink:0;
  text-align:center;line-height:1.2;
  background:transparent;
  letter-spacing:.03em;
}
.sensor-slot.empty:hover {
  border-color:rgba(16,167,170,0.55);
  color:#FFC53D;
  background:rgba(16,167,170,0.07);
}
.sensor-slot .s-icon { font-size:17px;line-height:1; }
.sensor-slot .s-label { font-size:8px;font-weight:700;white-space:nowrap;overflow:hidden;max-width:50px;text-overflow:ellipsis; }
.sensor-slot.connected { border-style:solid; }
.sensor-slot.connected:hover { filter:brightness(1.2); }
.sensor-slot.connected.color-sensor { background:rgba(76,175,80,0.15);border-color:rgba(76,175,80,0.55);color:#81c784; }
.sensor-slot.connected.dist-sensor { background:rgba(33,150,243,0.15);border-color:rgba(33,150,243,0.55);color:#64b5f6; }
.sensor-slot.connected.obstacle-sensor { background:rgba(244,67,54,0.15);border-color:rgba(244,67,54,0.55);color:#ef9a9a; }
.sensor-slot .s-remove {
  position:absolute;top:-5px;right:-5px;
  width:14px;height:14px;border-radius:50%;
  background:#ef4444;border:1.5px solid #0d1520;
  display:none;align-items:center;justify-content:center;
  font-size:8px;color:white;cursor:pointer;line-height:1;z-index:5;
}
.sensor-slot.connected:hover .s-remove { display:flex; }
.sensor-slot.required-missing {
  border-color:rgba(251,191,36,0.65) !important;
  color:rgba(251,191,36,0.8) !important;
  animation:sensorPulse 1.5s ease-in-out infinite;
}
@keyframes sensorPulse {
  0%,100%{background:rgba(251,191,36,0.04);}
  50%{background:rgba(251,191,36,0.14);}
}

/* Sensor picker modal */
#sensor-picker-overlay {
  position:fixed;inset:0;z-index:9600;
  background:rgba(5,10,20,0.7);backdrop-filter:blur(6px);
  display:none;align-items:flex-end;justify-content:center;
  padding-bottom:60px;
}
#sensor-picker-overlay.show { display:flex; }
#sensor-picker-modal {
  background:#0d1520;
  border:1.5px solid rgba(16,167,170,0.2);
  border-radius:16px;
  padding:20px;
  max-width:520px;width:90%;
  box-shadow:0 -8px 40px rgba(0,0,0,0.5);
}
#sensor-picker-modal h3 {
  font-family:'JetBrains Mono',monospace;
  font-size:13px;font-weight:800;color:#FFC53D;
  margin-bottom:14px;
}
.sensor-options { display:grid;grid-template-columns:1fr 1fr;gap:10px; }
.sensor-option {
  padding:14px;border-radius:11px;
  border:1.5px solid rgba(255,255,255,0.1);
  background:rgba(255,255,255,0.04);
  cursor:pointer;transition:all .18s;
  display:flex;align-items:center;gap:10px;
}
.sensor-option:hover { transform:translateY(-2px);border-color:rgba(16,167,170,0.4); }
.sensor-option.required { border-color:rgba(251,191,36,0.5);background:rgba(251,191,36,0.06); }
.s-opt-icon { font-size:22px;flex-shrink:0; }
.s-opt-name { font-family:'JetBrains Mono',monospace;font-size:11px;font-weight:800;color:white; }
.s-opt-desc { font-size:10px;color:rgba(255,255,255,0.45);margin-top:2px; }
.s-req-badge { font-size:9px;font-weight:800;padding:2px 6px;border-radius:4px;
  background:rgba(251,191,36,0.2);color:#FBBF24;margin-top:4px;display:inline-block; }

/* Sensor missing warning */
#sensor-warning {
  position:absolute;bottom:100px;left:50%;transform:translateX(-50%);
  background:rgba(239,68,68,0.9);color:white;
  padding:10px 18px;border-radius:10px;
  font-family:'JetBrains Mono',monospace;font-size:12px;font-weight:800;
  white-space:nowrap;z-index:100;
  display:none;
  box-shadow:0 4px 20px rgba(239,68,68,0.4);
  animation:warnPop .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes warnPop{from{opacity:0;transform:translateX(-50%) scale(0.8)}to{opacity:1;transform:translateX(-50%) scale(1)}}

/* Color sensor block — color dropdown */
.color-select {
  border:none;border-radius:8px;padding:2px 8px;
  font-family:'Nunito',sans-serif;font-size:11px;font-weight:800;
  background:white;color:#333;cursor:pointer;
  height:24px;min-width:90px;
  pointer-events:auto;
  position:relative;
  z-index:5;
}

/* ===== PROFILE / TEACHER / ADMIN PANELS ===== */
#panel-overlay{position:fixed;inset:0;background:rgba(5,15,25,0.82);backdrop-filter:blur(6px);z-index:9500;display:none;align-items:flex-start;justify-content:center;padding:24px;overflow-y:auto;}
#panel-overlay.show{display:flex;}
.panel-modal{background:#f0f2f7;border-radius:16px;width:100%;max-width:920px;overflow:hidden;box-shadow:0 24px 64px rgba(0,0,0,0.35);margin:auto;}
.panel-head{padding:16px 22px;background:linear-gradient(90deg,#241E3B,#241E3B);border-bottom:3px solid #10A7AA;display:flex;align-items:center;gap:12px;}
.panel-head h2{font-family:'JetBrains Mono',monospace;font-size:16px;font-weight:900;color:#FFC53D;flex:1;}
.panel-close{width:32px;height:32px;border-radius:8px;border:none;background:rgba(255,255,255,0.12);color:white;font-size:16px;cursor:pointer;}
.panel-body{padding:20px 22px;}
.panel-tabs{display:flex;gap:4px;background:#e0e3ec;padding:4px;border-radius:10px;margin-bottom:18px;}
.panel-tab{flex:1;padding:8px;font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;border:none;border-radius:7px;cursor:pointer;background:transparent;color:#6b7ea0;transition:all .15s;}
.panel-tab.active{background:white;color:#241E3B;box-shadow:0 1px 4px rgba(0,0,0,0.1);}
.panel-section{display:none;} .panel-section.active{display:block;}

/* stat cards */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;margin-bottom:16px;}
.stat-card{background:white;border-radius:10px;padding:12px 14px;text-align:center;box-shadow:0 1px 4px rgba(0,0,0,0.07);}
.stat-val{font-size:24px;font-weight:900;color:#241E3B;font-family:'JetBrains Mono',monospace;}
.stat-lbl{font-size:10px;font-weight:700;color:#6b7ea0;text-transform:uppercase;letter-spacing:.05em;margin-top:4px;}

/* badge pills */
.badge-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge-pill{display:flex;align-items:center;gap:6px;background:white;border-radius:20px;padding:5px 12px;font-size:11px;font-weight:800;color:#241E3B;box-shadow:0 1px 3px rgba(0,0,0,0.08);}

/* mission table */
.m-table{width:100%;border-collapse:collapse;font-size:12px;}
.m-table th{text-align:left;padding:8px 10px;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.05em;color:#6b7ea0;border-bottom:1px solid #e0e3ec;}
.m-table td{padding:8px 10px;border-bottom:1px solid #f0f2f7;color:#241E3B;}
.m-table tr:hover td{background:rgba(16,167,170,0.04);}
.stars-cell{color:#f59e0b;letter-spacing:2px;}

/* admin table */
.a-table{width:100%;border-collapse:collapse;font-size:12px;}
.a-table th{padding:8px 10px;text-align:left;font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.05em;color:#6b7ea0;border-bottom:2px solid #e0e3ec;}
.a-table td{padding:10px 10px;border-bottom:1px solid #f0f2f7;vertical-align:middle;}
.role-badge{display:inline-block;font-size:10px;font-weight:800;padding:2px 8px;border-radius:10px;}
.role-badge.admin{background:rgba(124,58,237,0.12);color:#5b21b6;}
.role-badge.teacher{background:rgba(5,150,105,0.12);color:#047857;}
.role-badge.student{background:rgba(8,145,178,0.12);color:#0A7E80;}
.status-badge{display:inline-block;font-size:10px;font-weight:800;padding:2px 8px;border-radius:10px;}
.status-badge.active{background:rgba(5,150,105,0.12);color:#047857;}
.status-badge.pending{background:rgba(217,119,6,0.12);color:#b45309;}
.status-badge.blocked{background:rgba(239,68,68,0.12);color:#b91c1c;}
.a-btn{font-family:'Nunito',sans-serif;font-size:11px;font-weight:800;padding:4px 10px;border-radius:6px;border:none;cursor:pointer;margin:0 2px;transition:all .12s;}
.a-btn.approve{background:rgba(5,150,105,0.15);color:#047857;}.a-btn.approve:hover{background:rgba(5,150,105,0.3);}
.a-btn.block{background:rgba(239,68,68,0.1);color:#b91c1c;}.a-btn.block:hover{background:rgba(239,68,68,0.25);}
.a-btn.del{background:rgba(239,68,68,0.1);color:#b91c1c;}.a-btn.del:hover{background:rgba(239,68,68,0.25);}
.a-btn.role{background:rgba(124,58,237,0.1);color:#5b21b6;}.a-btn.role:hover{background:rgba(124,58,237,0.2);}
.panel-empty{text-align:center;padding:40px;color:#6b7ea0;font-size:13px;font-weight:700;}
.panel-search{width:100%;padding:9px 12px;border:2px solid #e0e3ec;border-radius:10px;font-family:'Nunito',sans-serif;font-size:13px;margin-bottom:12px;outline:none;}
.panel-search:focus{border-color:#10A7AA;}
.class-card{background:white;border-radius:10px;padding:14px 16px;margin-bottom:10px;box-shadow:0 1px 4px rgba(0,0,0,0.07);}
.class-card-head{display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.class-card-name{font-size:14px;font-weight:800;color:#241E3B;flex:1;}
.pending-count{background:#ef4444;color:white;font-size:10px;font-weight:900;padding:2px 8px;border-radius:10px;}

/* ===== PAYWALL ===== */
#paywall-overlay{position:fixed;inset:0;background:rgba(0,10,20,0.88);backdrop-filter:blur(10px);z-index:10000;display:none;align-items:center;justify-content:center;padding:20px;}
#paywall-overlay.show{display:flex;}
.pw-modal{background:linear-gradient(135deg,#241E3B,#241E3B);border:2px solid #10A7AA;border-radius:20px;max-width:480px;width:100%;padding:36px 32px;text-align:center;position:relative;box-shadow:0 32px 80px rgba(0,0,0,0.5);}
.pw-close{position:absolute;top:14px;right:14px;width:30px;height:30px;border-radius:8px;border:none;background:rgba(255,255,255,0.1);color:rgba(255,255,255,0.6);font-size:15px;cursor:pointer;}
.pw-close:hover{background:rgba(255,255,255,0.18);color:white;}
.pw-icon{font-size:52px;margin-bottom:12px;}
.pw-title{font-family:'JetBrains Mono',monospace;font-size:22px;font-weight:900;color:#FFC53D;margin-bottom:8px;}
.pw-sub{font-size:14px;color:rgba(255,255,255,0.6);margin-bottom:24px;line-height:1.6;}
.pw-features{background:rgba(16,167,170,0.08);border:1px solid rgba(16,167,170,0.2);border-radius:12px;padding:16px 20px;margin-bottom:24px;text-align:left;}
.pw-feature{font-size:13px;color:rgba(255,255,255,0.8);padding:5px 0;display:flex;gap:10px;align-items:center;}
.pw-feature::before{content:'✓';color:#FFC53D;font-weight:900;flex-shrink:0;}
.pw-price{margin-bottom:20px;}
.pw-amount{font-family:'JetBrains Mono',monospace;font-size:36px;font-weight:900;color:white;}
.pw-amount span{font-size:16px;color:rgba(255,255,255,0.5);font-family:'Nunito',sans-serif;}
.pw-period{font-size:12px;color:rgba(255,255,255,0.4);margin-top:4px;}
.pw-btn{display:block;width:100%;padding:14px;background:linear-gradient(90deg,#10A7AA,#FFC53D);border:none;border-radius:12px;font-family:'Nunito',sans-serif;font-size:15px;font-weight:900;color:#241E3B;cursor:pointer;margin-bottom:10px;transition:all .2s;}
.pw-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(16,167,170,0.4);}
.pw-btn.secondary{background:rgba(255,255,255,0.08);color:rgba(255,255,255,0.7);font-size:13px;padding:10px;}
.pw-btn.secondary:hover{background:rgba(255,255,255,0.14);transform:none;box-shadow:none;}
.pw-note{font-size:11px;color:rgba(255,255,255,0.3);margin-top:12px;}

/* ===== LOCKED MAP CARDS ===== */
.map-card.locked {
  cursor: default;
  position: relative;
}
.map-card.locked:hover {
  transform: none;
  box-shadow: 0 2px 8px rgba(30,50,80,0.09);
}
.map-card.locked .map-card-thumb,
.robot-card.locked .robot-card-thumb {
  filter: blur(2px) brightness(0.45) grayscale(0.4);
}
.map-card.locked .map-card-info,
.robot-card.locked .robot-card-info {
  opacity: 0.5;
}
.robot-card.locked {
  cursor: default;
  position: relative;
}
.robot-card.locked:hover {
  transform: none;
  box-shadow: 0 2px 8px rgba(30,50,80,0.09);
}
.map-card-lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  z-index: 2;
  pointer-events: none;
}
.map-card-lock-icon {
  font-size: 26px;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,0.8));
}
.map-card-lock-label {
  font-size: 9px;
  font-weight: 900;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: .06em;
  color: #FBBF24;
  background: rgba(0,0,0,0.7);
  padding: 2px 8px;
  border-radius: 6px;
  text-transform: uppercase;
}
.map-card.locked:hover .map-card-lock-overlay {
  cursor: default;
}