:root{--lab-bg:#0a0f18;--panel-bg:#0f172abf;--accent-glow:#38bdf84d;--glass-border:#ffffff14;--sidebar-width:320px;--accent:#38bdf8}*{box-sizing:border-box;margin:0;padding:0}body,html{background-color:var(--lab-bg);color:#e2e8f0;width:100%;height:100%;font-family:Outfit,Noto Sans SC,sans-serif;overflow:hidden}#app-container{flex-direction:column;width:100vw;height:100vh;display:flex;overflow:hidden}.app-header{-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);z-index:200;background:#0f172af2;flex-shrink:0;justify-content:space-between;align-items:center;gap:.8rem;height:60px;padding:0 1.2rem;display:flex}.back-btn{color:#94a3b8;white-space:nowrap;align-items:center;gap:.4rem;font-size:.85rem;font-weight:500;text-decoration:none;transition:color .3s;display:flex}.back-btn svg{flex-shrink:0;width:18px;height:18px}.back-btn:hover{color:#fff}.mode-tabs{border:1px solid var(--glass-border);background:#00000080;border-radius:30px;padding:3px;display:flex}.mode-tab{color:#94a3b8;cursor:pointer;white-space:nowrap;background:0 0;border:none;border-radius:20px;padding:.45rem 1rem;font-family:inherit;font-size:.82rem;font-weight:600;transition:all .3s cubic-bezier(.4,0,.2,1)}.mode-tab.active{color:#fff;background:linear-gradient(135deg,#38bdf8 0%,#0284c7 100%);box-shadow:0 4px 12px #38bdf840}.header-action-btn{border:1px solid var(--glass-border);color:#e2e8f0;cursor:pointer;white-space:nowrap;background:#ffffff0f;border-radius:20px;align-items:center;gap:.3rem;padding:.4rem .8rem;font-family:inherit;font-size:.8rem;font-weight:600;transition:all .3s;display:flex}.header-action-btn:hover{background:#ffffff1f;border-color:#fff3}.main-content{flex:1;height:calc(100vh - 60px);display:flex;overflow:hidden}#sidebar{width:var(--sidebar-width);background:var(--panel-bg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:1px solid var(--glass-border);z-index:100;flex-direction:column;flex-shrink:0;gap:1.2rem;height:100%;padding:1.2rem;display:flex;overflow-y:auto}.equipment-group{border:1px solid var(--glass-border);background:#ffffff05;border-radius:16px;margin-bottom:0;padding:1rem}.group-title{text-transform:uppercase;color:#cbd5e1;letter-spacing:1px;border-left:3px solid var(--accent);margin-bottom:.8rem;padding-left:.5rem;font-size:.75rem;font-weight:700;display:block}.tool-item{border:1px solid var(--glass-border);cursor:pointer;background:#ffffff08;border-radius:12px;align-items:center;gap:10px;margin-bottom:.6rem;padding:.75rem .9rem;transition:all .3s;display:flex}.tool-item:last-child{margin-bottom:0}.tool-item:hover{background:#ffffff14;border-color:#38bdf880}.tool-icon{background:#38bdf81a;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:30px;height:30px;display:flex}.tool-name{font-size:.85rem;font-weight:500}.color-picker{gap:10px;display:flex}.color-dot{cursor:pointer;border:2px solid #0000;border-radius:50%;width:22px;height:22px;transition:transform .2s}.color-dot.active{border-color:#fff;transform:scale(1.2);box-shadow:0 0 10px}.laser-floating-picker{-webkit-backdrop-filter:blur(12px);z-index:150;pointer-events:auto;background:#0f172ad9;border:1px solid #fff3;border-radius:20px;gap:8px;margin-top:-10px;padding:6px 10px;transition:opacity .2s;display:flex;position:absolute;transform:translate(-50%,-100%);box-shadow:0 8px 24px #0009}.element-floating-delete{z-index:150;pointer-events:auto;margin-top:15px;position:absolute;transform:translate(-50%)}.floating-del-btn{-webkit-backdrop-filter:blur(10px);color:#fff;cursor:pointer;white-space:nowrap;background:#ef4444d9;border:1px solid #ffffff40;border-radius:20px;padding:5px 14px;font-size:.8rem;font-weight:600;transition:all .2s;box-shadow:0 4px 14px #ef444480}.floating-del-btn:hover{background:#ef4444;transform:scale(1.05)}.slider-row{align-items:center;gap:.6rem;margin-bottom:.8rem;display:flex}.slider-label{color:#94a3b8;white-space:nowrap;flex-shrink:0;min-width:60px;font-size:.82rem}.slider-row input[type=range]{flex:1}.slider-val{color:#38bdf8;text-align:right;flex-shrink:0;min-width:32px;font-family:Orbitron,monospace;font-size:.8rem;font-weight:700}input[type=range]{appearance:none;background:#ffffff1a;border-radius:3px;outline:none;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;cursor:pointer;background:#38bdf8;border-radius:50%;width:16px;height:16px;transition:transform .1s;box-shadow:0 0 8px #38bdf880}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.2)}.delete-btn{color:#fff;cursor:pointer;background:linear-gradient(135deg,#ef4444 0%,#b91c1c 100%);border:none;border-radius:10px;width:100%;padding:.6rem;font-size:.82rem;font-weight:600;transition:all .3s;box-shadow:0 4px 12px #ef444433}.delete-btn:hover{box-shadow:0 6px 16px #ef444466}#workspace{background-image:radial-gradient(circle at 2px 2px,#ffffff08 1px,#0000 0);background-size:40px 40px;flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.canvas-wrapper{width:100%;height:100%;position:relative;overflow:hidden}canvas{width:100%;height:100%;display:block}.overlay-info{pointer-events:none;position:absolute;top:15px;right:15px}.info-card{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border);color:#94a3b8;background:#0f172acc;border-radius:20px;padding:8px 16px;font-size:.8rem}.info-card span{color:#38bdf8;font-family:Orbitron,monospace;font-weight:700}.controls-hint{color:#64748b;pointer-events:none;background:#0009;border-radius:20px;padding:4px 12px;font-size:.75rem;position:absolute;bottom:12px;left:15px}.resize-handle{cursor:ns-resize;touch-action:none;-webkit-user-select:none;user-select:none;background:#0f172ae6;border-top:1px solid #ffffff0d;flex-shrink:0;justify-content:center;align-items:center;width:100%;height:24px;transition:background .2s;display:flex}.resize-handle:hover,.resize-handle.active{background:#ffffff14}.handle-bar{background:#ffffff4d;border-radius:10px;width:42px;height:5px;transition:all .2s}.resize-handle:hover .handle-bar,.resize-handle.active .handle-bar{background:var(--accent);width:54px}.modal-backdrop{-webkit-backdrop-filter:blur(14px);z-index:1000;background:#000000d9;justify-content:center;align-items:center;padding:1.5rem;animation:.3s fadeIn;display:flex;position:fixed;inset:0}.modal-content{border:1px solid var(--glass-border);background:#0f172a;border-radius:24px;flex-direction:column;width:100%;max-width:900px;max-height:85vh;padding:2rem;display:flex;overflow-y:auto;box-shadow:0 25px 50px -12px #000000e6}.modal-header{border-bottom:1px solid var(--glass-border);justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;display:flex}.modal-title{color:#fff;font-size:1.2rem;font-weight:700}.modal-close-btn{border:1px solid var(--glass-border);color:#94a3b8;cursor:pointer;background:#ffffff0f;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:1.4rem;display:flex}.theory-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.2rem;display:grid}.theory-card{border:1px solid var(--glass-border);background:#ffffff05;border-radius:16px;padding:1.2rem}.theory-card .card-icon{margin-bottom:.6rem;font-size:1.8rem}.theory-card h4{color:#f1f5f9;margin-bottom:.5rem;font-size:.95rem;font-weight:600}.theory-card p{color:#94a3b8;margin-bottom:.5rem;font-size:.82rem;line-height:1.5}.hidden{display:none!important}@media (width<=900px){.app-header{height:55px;padding:0 .6rem}.back-btn .back-text{display:none}.mode-tab,.header-action-btn{padding:.35rem .65rem;font-size:.75rem}.main-content{flex-direction:column;height:calc(100vh - 55px);overflow-y:auto}#workspace{z-index:100;border-bottom:1px solid var(--glass-border);background:#0a0f18;flex:none;height:auto;position:sticky;top:0}.canvas-wrapper{height:350px}#sidebar{border-right:none;gap:.8rem;width:100%;height:auto;padding:.8rem;overflow-y:visible}}@media (width>=901px){.main-content{flex-direction:row}#sidebar{order:1;width:320px}#workspace{flex:1;order:2}.resize-handle{display:none}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}