: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}.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)}}.toolbar-btn-home:hover{color:#93c5fd;background:#3b82f62e}.viewer-home-fab{z-index:50;color:#e2e8f0;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172ae0;border:1px solid #3b82f659;border-radius:999px;align-items:center;gap:6px;padding:8px 14px;font-size:.75rem;font-weight:600;transition:background .15s,border-color .15s;display:flex;position:absolute;bottom:16px;left:56px;box-shadow:0 4px 16px #00000059}.viewer-home-fab:hover{color:#fff;background:#1e293bf2;border-color:#60a5fa8c}.home-workspace{background:linear-gradient(165deg,#0f1419 0%,#111827 45%,#0c1220 100%);flex:1;min-height:100vh;padding:0 24px 32px;overflow:hidden auto}.home-hero{border-bottom:1px solid #ffffff14;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;max-width:1100px;margin:0 auto;padding:40px 0 32px;display:flex}.home-hero-brand{flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:4px;display:flex}.home-eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--primary);margin:0;font-size:.75rem;font-weight:600}.home-hero h1{color:#f8fafc;margin-bottom:12px;font-size:clamp(1.6rem,3vw,2.2rem);font-weight:700;line-height:1.2}.home-lead{color:var(--text-secondary);max-width:640px;font-size:.95rem;line-height:1.55}.home-hero-actions{flex-wrap:wrap;gap:10px;display:flex}.home-btn{cursor:pointer;border:1px solid #0000;border-radius:8px;padding:10px 18px;font-size:.85rem;font-weight:600;transition:background .15s,border-color .15s}.home-btn-primary{background:var(--primary);color:#fff;border-color:#3b82f680}.home-btn-primary:hover{background:#2563eb}.home-btn-secondary{color:var(--text-primary);background:#ffffff0f;border-color:#ffffff1f}.home-btn-secondary:hover{background:#ffffff1a}.home-section{max-width:1100px;margin:0 auto;padding:28px 0 0}.home-section h2{color:#f1f5f9;margin-bottom:6px;font-size:1.1rem;font-weight:700}.home-section-lead{color:var(--text-secondary);margin-bottom:16px;font-size:.85rem}.home-tile-grid{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;display:grid}.home-info-tile{text-align:left;border:1px solid #ffffff14;border-top:3px solid var(--tile-accent,var(--primary));background:#ffffff08;border-radius:12px;padding:18px}.home-tile-icon{margin-bottom:8px;font-size:1.6rem;display:block}.home-tile-title{color:#f8fafc;margin-bottom:6px;font-size:.95rem;font-weight:700;display:block}.home-tile-sub{color:var(--text-secondary);font-size:.78rem;line-height:1.45;display:block}.home-tier-lineup{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;display:grid}.home-tier-card{background:#ffffff08;border:1px solid #ffffff14;border-radius:12px;flex-direction:column;gap:8px;padding:16px;display:flex}.home-tier-card--current{background:#10b9810f;border-color:#10b98173}.home-tier-card__name{color:#f1f5f9;font-size:.82rem;font-weight:700}.home-tier-card__tag{color:var(--text-secondary);font-size:.75rem;line-height:1.4}.home-tier-card__you{text-transform:uppercase;letter-spacing:.06em;color:#6ee7b7;font-size:.65rem;font-weight:700}.home-tier-badge{letter-spacing:.06em;text-transform:uppercase;border:1px solid #0000;border-radius:999px;align-items:center;width:fit-content;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-footer{color:#64748b;border-top:1px solid #ffffff0f;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;max-width:1100px;margin:32px auto 0;padding-top:20px;font-size:.72rem;display:flex}.home-section-tiers{padding-bottom:8px}.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}