:root{--bg-gradient:#111;--glass-bg:#1e1e1e;--glass-border:#333;--primary:#3b82f6;--primary-glow:#3b82f61a;--accent:#60a5fa;--text-primary:#e5e5e5;--text-secondary:#a3a3a3;--panel-bg:#1e1e1e;--header-bg:#181818;--success:#10b981;--danger:#ef4444;--border-color:#333;--hover-bg:#ffffff14;--active-bg:#3b82f633;--active-text:#60a5fa}*{box-sizing:border-box;margin:0;padding:0}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#fff3}body,html,#root{background:var(--panel-bg);width:100%;height:100%;color:var(--text-primary);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,-apple-system,sans-serif;overflow:hidden}.cad-layout{background:var(--bg-gradient);flex-direction:column;width:100vw;height:100vh;display:flex}.cad-workspace{flex:1;display:flex;position:relative;overflow:hidden}.canvas-area{background:0 0;flex:1;position:relative}.glass-panel{background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:0 4px 12px #00000080}.top-bar{background:var(--header-bg);border-bottom:1px solid var(--border-color);height:40px;color:var(--text-secondary);-webkit-user-select:none;user-select:none;z-index:100;align-items:center;gap:24px;padding:0 16px;font-size:.8rem;display:flex}.top-group{align-items:center;gap:4px;display:flex}.top-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:4px;align-items:center;gap:6px;padding:6px 12px;font-size:.75rem;transition:all .1s;display:flex}.top-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.top-btn.active{background:var(--active-bg);color:var(--active-text);border-color:#0000}.divider-vertical{background:var(--border-color);width:1px;height:24px}.left-toolbar{background:var(--header-bg);border-right:1px solid var(--border-color);z-index:10;flex-direction:column;align-items:center;gap:8px;width:48px;padding:8px 0;display:flex}.toolbar-btn{width:36px;height:36px;color:var(--text-secondary);cursor:pointer;background:0 0;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;transition:all .1s;display:flex}.toolbar-btn:hover{background:var(--hover-bg);color:var(--text-primary)}.toolbar-btn.active{background:var(--active-bg);color:var(--active-text)}.divider{background:var(--border-color);width:32px;height:1px;margin:4px 0}.side-panel{background:var(--glass-bg);z-index:5;flex-direction:column;height:100%;display:flex;overflow-y:auto}.side-panel.left{border-right:1px solid var(--glass-border)}.side-panel.right{border-left:1px solid var(--glass-border)}.panel-header{color:var(--primary);text-transform:uppercase;letter-spacing:1.5px;border-bottom:1px solid var(--glass-border);background:#0006;justify-content:space-between;align-items:center;padding:12px 16px;font-size:.75rem;font-weight:700;display:flex}.panel-content{flex:1;padding:16px;overflow-y:auto}.loader{border:2px solid #f472b61a;border-top:2px solid var(--primary);border-radius:50%;width:32px;height:32px;animation:.8s linear infinite spin}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.demos-title-wrapper{pointer-events:auto;flex-direction:column;align-items:center;gap:.5rem;margin-top:2.5rem;display:flex}.demos-title{color:var(--primary);letter-spacing:2px;text-transform:uppercase;text-shadow:0 0 10px #3b82f64d;font-size:1.25rem;font-weight:600}.demos-subtitle{color:var(--text-secondary);font-size:.8rem}.demos-container{pointer-events:auto;flex-wrap:wrap;justify-content:center;gap:16px;max-width:800px;margin-top:1rem;display:flex}.demo-card{-webkit-backdrop-filter:blur(10px);border:1px solid var(--glass-border);cursor:pointer;background:#1e1e1e99;border-radius:12px;flex-direction:column;align-items:center;gap:10px;width:160px;padding:18px 12px;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;box-shadow:0 4px 12px #00000059}.demo-card:hover{border-color:var(--primary);background:#3b82f60d;transform:translateY(-6px);box-shadow:0 8px 24px #3b82f640}.demo-card-icon{font-size:2.2rem;transition:transform .3s}.demo-card:hover .demo-card-icon{transform:scale(1.18)rotate(6deg)}.demo-card-title{color:var(--text-primary);text-align:center;font-size:.8rem;font-weight:600}.demo-card-subtitle{color:var(--text-secondary);text-align:center;opacity:.7;font-size:.68rem}