:root{--color-primary: #487D73;--color-primary-hover: #3B6A61;--color-primary-light: rgba(72, 125, 115, .12);--color-secondary: #7A6854;--bg: #F0E9DF;--bg-elevated: #E8E1D7;--bg-card: rgba(255, 252, 248, .75);--text: #3A3330;--text-muted: #635850;--text-dim: #786050;--border: rgba(160, 140, 120, .16);--border-strong: rgba(160, 140, 120, .26);--viewport-bg: #2A2928;--viewport-text: #C5BAB0;--viewport-border: rgba(255, 245, 235, .08);--radius: 12px;--radius-sm: 8px;--shadow-sm: 0 2px 8px rgba(46, 42, 38, .06);--shadow-md: 0 6px 24px rgba(46, 42, 38, .08);--transition-fast: .15s ease;--transition-med: .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Plus Jakarta Sans,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);height:100vh;display:flex;flex-direction:column;overflow:hidden}.grain-overlay{position:fixed;inset:0;pointer-events:none;z-index:9999;opacity:.03;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");background-size:200px 200px}.app-header{padding:0;background:var(--bg-elevated);border-bottom:1px solid var(--border);flex-shrink:0;position:relative;overflow:hidden}.app-header:before{content:"";position:absolute;top:-60%;left:50%;transform:translate(-50%);width:120%;height:200%;background:radial-gradient(ellipse,rgba(176,136,104,.08) 0%,transparent 70%);pointer-events:none}.header-inner{position:relative;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}.app-header h1{font-family:Plus Jakarta Sans,sans-serif;font-size:1.7rem;font-weight:700;color:var(--color-primary);letter-spacing:-.3px}.subtitle{font-size:.78rem;font-weight:400;color:var(--text-muted);margin-top:2px;letter-spacing:.1px}.app-layout{display:flex;flex:1;overflow:hidden}.sidebar{width:320px;flex-shrink:0;background:var(--bg);border-right:1px solid var(--border);overflow-y:auto;padding:10px}.panel{background:var(--bg-card);border-radius:var(--radius);margin-bottom:10px;border:1px solid var(--border);transition:all var(--transition-med);box-shadow:var(--shadow-sm)}.panel:hover:not(.disabled):not(.panel-view){box-shadow:var(--shadow-md);border-color:var(--border-strong)}.panel.disabled{opacity:.35;pointer-events:none;box-shadow:none}.panel-title{font-family:Plus Jakarta Sans,sans-serif;font-size:.92rem;font-weight:600;padding:11px 14px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);color:var(--text)}.step-num{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;background:var(--color-primary);color:#fff;border-radius:50%;font-family:Plus Jakarta Sans,sans-serif;font-size:.7rem;font-weight:700;flex-shrink:0}.panel-body{padding:14px}.panel-view .panel-title{border-bottom:none;padding-bottom:0}.panel-view{background:transparent;border:none;box-shadow:none}.file-drop{display:flex;flex-direction:column;align-items:center;gap:10px;padding:24px 16px;border:2px dashed var(--border-strong);border-radius:var(--radius);cursor:pointer;color:var(--text-muted);transition:all var(--transition-med);text-align:center;font-size:.8rem;font-weight:400;background:#ffffff4d}.file-drop:hover,.file-drop.drag-over{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light);box-shadow:var(--shadow-sm)}.file-drop svg{opacity:.5;color:var(--color-primary)}.model-info{margin-top:12px}.info-row{display:flex;justify-content:space-between;font-size:.78rem;padding:4px 0;border-bottom:1px solid rgba(160,140,120,.08)}.info-row:last-child{border-bottom:none}.info-label{color:var(--text-dim);font-weight:400}.info-value{font-weight:600;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:170px}.control-label{display:block;font-size:.78rem;color:var(--text-muted);margin-bottom:12px;font-weight:500}.range-row{display:flex;align-items:center;gap:8px;margin-top:6px}.range-row input[type=range]{flex:1;accent-color:var(--color-primary);height:4px}.num-input{width:55px;padding:5px 6px;background:#fff9;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);font-family:Plus Jakarta Sans,sans-serif;font-size:.8rem;text-align:center;transition:border-color var(--transition-fast)}.num-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #487d731a}.axis-btns{display:flex;gap:6px;margin-top:6px}.axis-btn{flex:1;padding:6px 8px;background:#ffffff80;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-family:Plus Jakarta Sans,sans-serif;font-size:.75rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.axis-btn:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}.axis-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary);font-weight:700;box-shadow:0 2px 8px #487d7340}.btn{display:block;width:100%;padding:10px 14px;border:none;border-radius:var(--radius-sm);font-family:Plus Jakarta Sans,sans-serif;font-size:.82rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast);letter-spacing:.1px}.btn-primary{background:var(--color-primary);color:#fff;box-shadow:0 2px 8px #487d7333}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover);box-shadow:0 4px 16px #487d734d;transform:translateY(-1px)}.btn-primary:active{transform:translateY(0);box-shadow:0 2px 8px #487d7333}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-export{background:#fff9;color:var(--text);border:1px solid var(--border);margin-bottom:6px}.btn-export:hover{border-color:var(--color-primary);background:var(--color-primary-light);color:var(--color-primary)}.btn-both{background:var(--color-secondary);color:#fff;border:none;box-shadow:0 2px 8px #a0807033}.btn-both:hover{background:#907060;box-shadow:0 4px 16px #a080704d;transform:translateY(-1px)}.view-toggles{display:flex;gap:6px;margin-bottom:12px}.view-btn{flex:1;padding:6px 8px;background:#ffffff80;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-family:Plus Jakarta Sans,sans-serif;font-size:.75rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.view-btn:hover:not(:disabled):not(.active){border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}.view-btn.active{background:var(--color-primary);color:#fff;border-color:var(--color-primary);font-weight:700;box-shadow:0 2px 8px #487d7340}.view-btn:disabled{opacity:.3;cursor:not-allowed}.view-row{display:flex;align-items:center;justify-content:space-between}.btn-reset-view{padding:4px 10px;background:#ffffff80;border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-muted);font-family:Plus Jakarta Sans,sans-serif;font-size:.72rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-reset-view:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-light)}.tilt-label{font-size:.72rem;font-weight:600;color:var(--text-dim);min-width:14px;text-align:center}.check-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:.78rem;margin-bottom:0;color:var(--text-muted);transition:color var(--transition-fast)}.check-label:hover{color:var(--text)}.check-label input[type=checkbox]{accent-color:var(--color-primary);width:15px;height:15px}.viewport{flex:1;position:relative;overflow:hidden;background:var(--viewport-bg);border-radius:0}#canvas3d{display:block;width:100%;height:100%}.viewport-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--viewport-text);gap:14px;z-index:2}.viewport-placeholder svg{opacity:.2;color:var(--viewport-text)}.viewport-placeholder p{font-family:Plus Jakarta Sans,sans-serif;font-size:.95rem;font-weight:400;font-style:italic;opacity:.6}.status-bar{position:absolute;bottom:0;left:0;right:0;padding:7px 16px;background:#3d3835eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:var(--viewport-text);font-size:.73rem;font-weight:400;border-top:1px solid var(--viewport-border);z-index:3;letter-spacing:.2px;display:flex;align-items:center;gap:12px}.progress-bar{flex:1;height:3px;background:#ffffff1a;border-radius:2px;overflow:hidden}.progress-fill{height:100%;width:0%;background:var(--color-primary);border-radius:2px;transition:width .3s ease}.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-track{background:transparent}.sidebar::-webkit-scrollbar-thumb{background:#a08c7833;border-radius:3px}.sidebar::-webkit-scrollbar-thumb:hover{background:#a08c7859}.btn:focus-visible,.axis-btn:focus-visible,.view-btn:focus-visible,.btn-reset-view:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.header-left{flex:1}.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}.free-counter{font-size:.72rem;color:var(--text-muted);font-weight:500;white-space:nowrap}.btn-sign-in{padding:7px 18px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-family:Plus Jakarta Sans,sans-serif;font-size:.78rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-sign-in:hover{background:var(--color-primary-hover);transform:translateY(-1px)}.user-menu{display:flex;align-items:center;gap:8px;position:relative}.pro-badge{padding:2px 8px;background:var(--color-primary);color:#fff;border-radius:10px;font-size:.62rem;font-weight:700;letter-spacing:.5px}.btn-user{padding:6px 12px;background:#ffffff80;border:1px solid var(--border);border-radius:var(--radius-sm);font-family:Plus Jakarta Sans,sans-serif;font-size:.78rem;font-weight:500;color:var(--text);cursor:pointer;transition:all var(--transition-fast);max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-user:hover{border-color:var(--color-primary);background:var(--color-primary-light)}.user-dropdown{position:absolute;top:calc(100% + 6px);right:0;background:var(--bg-card);border:1px solid var(--border-strong);border-radius:var(--radius-sm);box-shadow:var(--shadow-md);min-width:200px;z-index:100;overflow:hidden}.dropdown-email{display:block;padding:10px 14px;font-size:.72rem;color:var(--text-dim);border-bottom:1px solid var(--border);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.dropdown-item{display:block;width:100%;padding:9px 14px;background:none;border:none;font-family:Plus Jakarta Sans,sans-serif;font-size:.78rem;color:var(--text);cursor:pointer;text-align:left;transition:background var(--transition-fast)}.dropdown-item:hover{background:var(--color-primary-light);color:var(--color-primary)}.modal-overlay{position:fixed;inset:0;background:#2a262399;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000}.modal-card{background:var(--bg-card);border-radius:var(--radius);box-shadow:0 16px 48px #2e2a2633;position:relative;max-height:90vh;overflow-y:auto}.modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:1.4rem;color:var(--text-muted);cursor:pointer;line-height:1;padding:4px;transition:color var(--transition-fast)}.modal-close:hover{color:var(--text)}.modal-title{font-family:Plus Jakarta Sans,sans-serif;font-size:1.25rem;font-weight:700;color:var(--text);margin-bottom:18px}.auth-card{width:380px;padding:32px}.modal-input{display:block;width:100%;padding:10px 12px;background:#fff9;border:1px solid var(--border);border-radius:var(--radius-sm);font-family:Plus Jakarta Sans,sans-serif;font-size:.85rem;color:var(--text);margin-bottom:10px;transition:border-color var(--transition-fast)}.modal-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #487d731a}.auth-card .btn-primary{margin-top:4px}.auth-divider{display:flex;align-items:center;gap:12px;margin:18px 0;color:var(--text-dim);font-size:.75rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border)}.btn-google{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:10px 14px;background:#fff;border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-family:Plus Jakarta Sans,sans-serif;font-size:.82rem;font-weight:500;color:var(--text);cursor:pointer;transition:all var(--transition-fast)}.btn-google:hover{box-shadow:var(--shadow-sm);border-color:var(--border-strong)}.auth-toggle{margin-top:16px;font-size:.78rem;color:var(--text-muted);text-align:center}.auth-toggle a{color:var(--color-primary);font-weight:600;text-decoration:none}.auth-toggle a:hover{text-decoration:underline}.auth-error{margin-top:12px;padding:8px 12px;background:#e85d4a1a;border:1px solid rgba(232,93,74,.25);border-radius:var(--radius-sm);color:#c0392b;font-size:.78rem;text-align:center}.pricing-card{width:560px;padding:36px}.pricing-subtitle{font-size:.85rem;color:var(--text-muted);margin-top:-12px;margin-bottom:24px}.plan-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}.plan-card{padding:24px 20px;border:1px solid var(--border);border-radius:var(--radius);background:#fff6;text-align:center;position:relative;transition:all var(--transition-med)}.plan-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-md)}.plan-card.featured{border-color:var(--color-primary);background:var(--color-primary-light);box-shadow:0 4px 20px #487d7326}.plan-badge{position:absolute;top:-10px;left:50%;transform:translate(-50%);padding:3px 12px;background:var(--color-primary);color:#fff;border-radius:10px;font-size:.65rem;font-weight:700;letter-spacing:.3px;white-space:nowrap}.plan-name{font-family:Plus Jakarta Sans,sans-serif;font-size:1rem;font-weight:600;color:var(--text);margin-bottom:8px}.plan-price{font-family:Plus Jakarta Sans,sans-serif;font-size:2rem;font-weight:700;color:var(--text);margin-bottom:4px}.plan-price span{font-size:.82rem;font-weight:400;color:var(--text-muted)}.plan-savings{font-size:.72rem;color:var(--color-primary);font-weight:600;margin-bottom:8px}.plan-features{list-style:none;text-align:left;margin:16px 0;font-size:.78rem;color:var(--text-muted)}.plan-features li{padding:4px 0 4px 20px;position:relative}.plan-features li:before{content:"✓";position:absolute;left:0;color:var(--color-primary);font-weight:700}.btn-plan{margin-top:8px}@media(max-width:768px){.app-layout{flex-direction:column}.sidebar{width:100%;max-height:45vh;border-right:none;border-bottom:1px solid var(--border)}.header-inner{flex-wrap:wrap}.auth-card,.pricing-card{width:92vw}.plan-cards{grid-template-columns:1fr}}