: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}*{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:200;align-items:center;gap:24px;padding:0 16px;font-size:.8rem;display:flex;position:relative}.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}.right-panel-stack{overflow:hidden!important}.right-panel-stack .panel-content{padding:8px 10px}.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)}}.home-screen{pointer-events:auto;background:radial-gradient(at 20% 0,#6366f11f,#0000 55%),radial-gradient(at 80% 100%,#10b98114,#0000 50%);flex-direction:column;flex:1;gap:20px;min-height:0;padding:20px 24px 28px;display:flex;overflow-y:auto}.home-screen__hero{max-width:920px}.home-screen__brand{align-items:center;gap:14px;margin-bottom:8px;display:flex}.home-screen__logo{color:var(--primary);filter:drop-shadow(0 0 12px #6366f180);font-size:2rem}.home-screen__title{color:var(--text-primary);letter-spacing:-.02em;margin:0;font-size:1.45rem;font-weight:700}.home-screen__title-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.home-tier-badge{letter-spacing:.06em;text-transform:uppercase;border:1px solid #0000;border-radius:999px;align-items:center;padding:3px 10px;font-size:.65rem;font-weight:700;line-height:1.2;display:inline-flex}.home-tier-badge--student{color:#6ee7b7;background:#10b98126;border-color:#10b98159}.home-tier-badge--professional{color:#93c5fd;background:#3b82f626;border-color:#3b82f666}.home-tier-badge--ultra{color:#c4b5fd;background:#8b5cf62e;border-color:#8b5cf673}.home-screen__subtitle{color:var(--text-secondary);margin:4px 0 0;font-size:.78rem}.home-screen__lead{color:var(--text-secondary);max-width:720px;margin:0;font-size:.88rem;line-height:1.5}.home-screen__quick-actions{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.home-nav-btn{margin-right:4px;color:#93c5fd!important;background:#3b82f61a!important;border:1px solid #3b82f659!important}.home-nav-btn:hover{color:#fff!important;background:#3b82f638!important}.viewer-home-fab{z-index:50;color:#e2e8f0;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172aeb;border:1px solid #3b82f673;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;font-size:.75rem;font-weight:600;transition:background .15s,border-color .15s,transform .15s;display:flex;position:absolute;bottom:16px;left:56px;box-shadow:0 4px 16px #00000073}.viewer-home-fab:hover{border-color:var(--primary);background:#1e3a8af2;transform:translateY(-1px)}.toolbar-btn-home{color:#93c5fd!important}.toolbar-btn-home:hover{background:#3b82f626!important}.home-section{width:100%;max-width:1100px;margin:0 auto}.home-section__title{color:var(--text-primary);margin:0 0 6px;font-size:1.05rem;font-weight:700}.home-section__lead{color:var(--text-secondary);margin:0 0 14px;font-size:.82rem;line-height:1.45}.home-tile-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;display:grid}.home-tile{text-align:left;cursor:pointer;color:inherit;font:inherit;background:#1e293b8c;border:1px solid #ffffff14;border-radius:12px;flex-direction:column;gap:6px;padding:18px 16px 14px;transition:border-color .2s,transform .15s,box-shadow .2s;display:flex;position:relative}.home-tile:hover:not(:disabled){border-color:var(--tile-accent,var(--primary));transform:translateY(-2px);box-shadow:0 8px 24px #00000059}.home-tile:disabled{opacity:.6;cursor:wait}.home-tile-badge{text-transform:uppercase;letter-spacing:.04em;color:#93c5fd;background:#3b82f633;border-radius:999px;padding:3px 8px;font-size:.62rem;font-weight:700;position:absolute;top:10px;right:10px}.home-tile-icon{font-size:1.6rem;line-height:1}.home-tile-title{color:#f8fafc;font-size:.92rem;font-weight:700}.home-tile-sub{color:#94a3b8;flex:1;font-size:.74rem;line-height:1.45}.home-tile-cta{color:var(--tile-accent,var(--primary));margin-top:4px;font-size:.72rem;font-weight:600}.home-training-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;display:grid}.home-training-card--md{color:inherit;background:#0f172a99;border:1px solid #ffffff14;border-radius:10px;align-items:center;gap:12px;padding:14px 16px;text-decoration:none;transition:border-color .2s,background .2s;display:flex}.home-training-card--md:hover{background:#1e293bcc;border-color:#3b82f666}.home-training-icon{flex-shrink:0;font-size:1.4rem}.home-training-body{flex:1;min-width:0}.home-training-title{color:#f1f5f9;margin-bottom:4px;font-size:.88rem;font-weight:700}.home-training-desc{color:#94a3b8;font-size:.74rem;line-height:1.4}.home-training-dl{color:#93c5fd;flex-shrink:0;font-size:.72rem;font-weight:600}.home-section-training{padding-bottom:8px}.home-training-card{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172aa6;border:1px solid #6366f159;border-radius:12px;flex-wrap:wrap;align-items:flex-start;gap:14px 20px;padding:16px 18px;display:flex}.home-training-card__icon{font-size:2rem;line-height:1}.home-training-card__body{flex:240px;min-width:200px}.home-training-card__title{color:#a5b4fc;margin:0 0 6px;font-size:1rem}.home-training-card__text{color:var(--text-secondary);margin:0;font-size:.75rem;line-height:1.45}.home-training-card__text code{color:#94a3b8;font-size:.68rem}.home-training-card__actions{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.home-screen__grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;display:grid}.home-feature-tile{border:1px solid #ffffff14;border-top:3px solid var(--tile-accent,var(--primary));background:#00000047;border-radius:10px;flex-direction:column;gap:6px;padding:14px;transition:border-color .15s,transform .15s;display:flex}.home-feature-tile:hover{border-color:#ffffff24;transform:translateY(-1px)}.home-feature-tile__head{justify-content:space-between;align-items:center;display:flex}.home-feature-tile__icon{font-size:1.5rem}.home-feature-tile__tag{text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);background:#ffffff0f;border-radius:4px;padding:2px 6px;font-size:.58rem;font-weight:700}.home-feature-tile__title{color:var(--text-primary);margin:0;font-size:.92rem;font-weight:700}.home-feature-tile__unique{color:var(--tile-accent,var(--primary));margin:0;font-size:.68rem;font-weight:600}.home-feature-tile__desc{color:var(--text-secondary);flex:1;margin:0;font-size:.72rem;line-height:1.4}.home-feature-tile__actions{gap:8px;margin-top:6px;display:flex}.home-btn{cursor:pointer;border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;padding:6px 12px;font-size:.72rem;font-weight:600;text-decoration:none;transition:background .15s,opacity .15s;display:inline-flex}.home-btn:disabled{opacity:.5;cursor:wait}.home-btn--primary{color:#fff;background:#6366f1d9;border-color:#6366f180}.home-btn--primary:hover:not(:disabled){background:#6366f1}.home-btn--ghost{color:var(--text-secondary);background:#ffffff0f;border-color:#ffffff1f}.home-btn--ghost:hover:not(:disabled){color:var(--text-primary);background:#ffffff1a}.home-screen__footer{text-align:center;color:var(--text-secondary);opacity:.75;margin:4px 0 0;font-size:.72rem}.home-training-modal{z-index:100000;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.home-training-modal__backdrop{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#000000b8;position:absolute;inset:0}.home-training-modal__panel{background:#0f172a;border:1px solid #6366f166;border-radius:12px;flex-direction:column;width:min(920px,100%);height:min(85vh,900px);display:flex;position:relative;overflow:hidden;box-shadow:0 24px 64px #0000008c}.home-training-modal__bar{color:var(--text-primary);background:#00000059;border-bottom:1px solid #ffffff14;justify-content:space-between;align-items:center;padding:10px 14px;font-size:.85rem;display:flex}.home-training-modal__frame{background:#1e293b;border:none;flex:1;width:100%}@keyframes pulse{0%{opacity:.8;transform:translate(-50%,-50%)scale(.85)}50%{opacity:.3;transform:translate(-50%,-50%)scale(1.3)}to{opacity:0;transform:translate(-50%,-50%)scale(1.6)}}.viewport-axis-hud{z-index:25;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);pointer-events:auto;-webkit-user-select:none;user-select:none;background:#0f172ae0;border:1px solid #94a3b838;border-radius:12px;width:132px;padding:10px 10px 8px;position:absolute;bottom:72px;left:14px;box-shadow:0 8px 24px #00000059}.viewport-axis-hud__header{justify-content:space-between;align-items:center;gap:6px;margin-bottom:8px;display:flex}.viewport-axis-hud__title{letter-spacing:.08em;text-transform:uppercase;color:#94a3b8;font-size:.62rem;font-weight:700}.viewport-axis-hud__legend{color:#cbd5e1;gap:6px;font-size:.62rem;font-weight:700;display:flex}.viewport-axis-hud__legend span{align-items:center;gap:3px;display:inline-flex}.axis-dot{border-radius:50%;width:6px;height:6px;display:inline-block}.axis-dot--x{background:#ef4444}.axis-dot--y{background:#22c55e}.axis-dot--z{background:#3b82f6}.viewport-axis-hud__triad{perspective:120px;justify-content:center;align-items:center;height:56px;margin-bottom:8px;display:flex}.viewport-axis-hud__triad-inner{width:44px;height:44px;transform-style:preserve-3d;transition:transform .12s ease-out;position:relative}.viewport-axis-hud__core{background:#f8fafc;border-radius:50%;width:8px;height:8px;margin:-4px 0 0 -4px;position:absolute;top:50%;left:50%;box-shadow:0 0 6px #ffffff59}.viewport-axis-hud__arm{transform-origin:bottom;border-radius:2px;width:2px;height:18px;margin-left:-1px;position:absolute;top:50%;left:50%}.viewport-axis-hud__arm--x{background:linear-gradient(#fca5a5,#ef4444);transform:translateY(-18px)rotate(90deg)}.viewport-axis-hud__arm--y{background:linear-gradient(#86efac,#22c55e);transform:translateY(-18px)}.viewport-axis-hud__arm--z{background:linear-gradient(#93c5fd,#3b82f6);transform:translateY(-18px)rotateX(90deg)}.viewport-axis-hud__views{grid-template-columns:repeat(3,1fr);gap:4px;display:grid}.viewport-axis-hud__view-btn{color:#cbd5e1;cursor:pointer;background:#ffffff0d;border:1px solid #ffffff14;border-radius:6px;padding:4px 0;font-size:.62rem;font-weight:700;transition:background .15s,border-color .15s,color .15s}.viewport-axis-hud__view-btn:hover{color:#f8fafc;background:#3b82f633;border-color:#60a5fa73}.viewport-axis-hud__view-btn--accent{color:#93c5fd;grid-column:span 3;margin-top:2px}.ai-copilot-suggestions button:hover:not(:disabled){color:#e2e8f0!important;background:#3b82f626!important;border-color:#60a5fa59!important}