*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--background-dark: #1a1a2e;--background-light: #16213e;--text-primary: #ffffff;--text-secondary: #a0aec0;--accent-color: #10b981;--error-color: #ef4444;--shadow: 0 10px 30px rgba(0, 0, 0, .3);--border-radius: 12px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,var(--background-dark) 0%,var(--background-light) 100%);color:var(--text-primary);overflow-x:hidden}.app{min-height:100vh;display:flex;flex-direction:column}.app-header{padding:1.5rem 2rem;background:#1a1a2ee6;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1);text-align:center}.logo-section h1{font-size:2rem;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:.5rem}.tagline{font-size:.9rem;color:var(--text-secondary);font-weight:300}.selector-view{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2rem;max-width:800px;margin:0 auto;width:100%}.model-selector{width:100%;background:#ffffff0d;border-radius:var(--border-radius);padding:2rem;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.model-selector h2{font-size:1.5rem;margin-bottom:2rem;text-align:center;color:var(--text-primary)}.model-selector h3{font-size:1.1rem;margin-bottom:1rem;color:var(--text-secondary)}.preset-models{margin-bottom:2rem}.model-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem}.model-card{background:#ffffff0d;border:2px solid rgba(255,255,255,.1);border-radius:var(--border-radius);padding:1.5rem;cursor:pointer;transition:all .3s ease;display:flex;flex-direction:column;align-items:center;gap:.8rem}.model-card:hover{background:#ffffff1a;border-color:var(--primary-color);transform:translateY(-2px)}.model-card.selected{background:#6366f133;border-color:var(--primary-color)}.model-icon{font-size:3rem}.model-name{font-size:.9rem;color:var(--text-primary);text-align:center}.upload-section{margin-bottom:2rem}.upload-button{width:100%;padding:1rem;background:#6366f133;border:2px dashed var(--primary-color);border-radius:var(--border-radius);color:var(--text-primary);font-size:1rem;cursor:pointer;transition:all .3s ease}.upload-button:hover{background:#6366f14d;border-style:solid}.prompt-section form{display:flex;gap:.5rem}.prompt-input{flex:1;padding:1rem;background:#ffffff0d;border:1px solid rgba(255,255,255,.1);border-radius:var(--border-radius);color:var(--text-primary);font-size:1rem}.prompt-input:focus{outline:none;border-color:var(--primary-color)}.prompt-button{padding:1rem 1.5rem;background:var(--primary-color);border:none;border-radius:var(--border-radius);color:#fff;font-size:1rem;cursor:pointer;transition:all .3s ease;white-space:nowrap}.prompt-button:hover:not(:disabled){background:var(--secondary-color)}.prompt-button:disabled{opacity:.5;cursor:not-allowed}.selected-model-info{margin:1.5rem 0;padding:1rem;background:#10b9811a;border-left:4px solid var(--accent-color);border-radius:var(--border-radius);text-align:center}.ar-button{width:100%;max-width:400px;padding:1.2rem 2rem;margin:1.5rem 0;background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));border:none;border-radius:var(--border-radius);color:#fff;font-size:1.2rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #6366f166}.ar-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #6366f199}.ar-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.error-message{margin-top:1rem;padding:1rem;background:#ef44441a;border-left:4px solid var(--error-color);border-radius:var(--border-radius);color:var(--error-color);text-align:center}.ar-view{position:relative;width:100%;height:100vh}.ar-container{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden}.ar-container canvas{display:block;width:100%;height:100%}.tap-instruction{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#000c;color:#fff;padding:1.5rem 2rem;border-radius:var(--border-radius);font-size:1.1rem;text-align:center;z-index:100;animation:pulse 2s infinite}.placement-success{position:absolute;top:20%;left:50%;transform:translate(-50%);background:#10b981e6;color:#fff;padding:1rem 2rem;border-radius:var(--border-radius);font-size:1rem;text-align:center;z-index:100;animation:slideDown .5s ease-out}.loading-model{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#6366f1e6;color:#fff;padding:1.5rem 2rem;border-radius:var(--border-radius);font-size:1.1rem;text-align:center;z-index:100;animation:pulse 1.5s infinite}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}@keyframes slideDown{0%{opacity:0;transform:translate(-50%,-20px)}to{opacity:1;transform:translate(-50%)}}.ar-controls{position:absolute;bottom:0;left:0;right:0;padding:2rem;background:linear-gradient(to top,rgba(0,0,0,.8),transparent);pointer-events:none}.ar-controls>*{pointer-events:auto}.exit-button{position:absolute;top:-4rem;right:2rem;padding:.8rem 1.5rem;background:#ef4444e6;border:none;border-radius:var(--border-radius);color:#fff;font-size:1rem;cursor:pointer;font-weight:600}.control-panel{display:flex;justify-content:center;gap:1rem;flex-wrap:wrap}.control-button{background:#ffffffe6;border:none;border-radius:50%;width:60px;height:60px;font-size:1.5rem;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 15px #0000004d;display:flex;align-items:center;justify-content:center}.icon-button:hover{background:#fff;transform:scale(1.1)}.icon-button.delete{background:#ef4444e6;color:#fff}.icon-button.snapshot{background:#10b981e6;color:#fff}.app-footer{padding:1rem 2rem;background:#1a1a2ee6;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:.85rem;color:var(--text-secondary)}@media (max-width: 768px){.app-header{padding:1rem}.logo-section h1{font-size:1.5rem}.tagline{font-size:.8rem}.selector-view{padding:1rem}.model-selector{padding:1.5rem}.model-grid{grid-template-columns:repeat(2,1fr)}.prompt-section form{flex-direction:column}.control-panel{gap:.5rem}.control-button{width:50px;height:50px;font-size:1.2rem}.exit-button{padding:.6rem 1rem;font-size:.9rem;top:-3.5rem;right:1rem}}.camera-selector-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d9;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.camera-selector-modal{background:linear-gradient(135deg,var(--background-dark),var(--background-light));border-radius:var(--border-radius);padding:2rem;max-width:500px;width:100%;box-shadow:var(--shadow);border:1px solid rgba(255,255,255,.1)}.camera-selector-modal h2{margin-bottom:1.5rem;text-align:center;font-size:1.5rem}.loading-state,.no-cameras{text-align:center;padding:2rem;color:var(--text-secondary)}.no-cameras .hint{font-size:.9rem;margin-top:.5rem;opacity:.7}.camera-list{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem;max-height:300px;overflow-y:auto}.camera-option{background:#ffffff0d;border:2px solid rgba(255,255,255,.1);border-radius:var(--border-radius);padding:1rem;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:1rem;text-align:left}.camera-option:hover{background:#ffffff1a;border-color:var(--primary-color)}.camera-option.selected{background:#6366f133;border-color:var(--primary-color)}.camera-icon{font-size:2rem;flex-shrink:0}.camera-info{flex:1;display:flex;flex-direction:column;gap:.25rem}.camera-info strong{color:var(--text-primary);font-size:1rem}.camera-hint{color:var(--text-secondary);font-size:.85rem}.check-mark{color:var(--accent-color);font-size:1.5rem;font-weight:700;flex-shrink:0}.camera-actions{display:flex;gap:.75rem}.confirm-button,.cancel-button{flex:1;padding:1rem;border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.confirm-button{background:var(--accent-color);color:#fff}.confirm-button:hover:not(:disabled){background:#0ea574;transform:translateY(-2px)}.confirm-button:disabled{opacity:.5;cursor:not-allowed}.cancel-button{background:#ffffff1a;color:var(--text-primary);border:1px solid rgba(255,255,255,.2)}.cancel-button:hover{background:#ffffff26}@keyframes spin{to{transform:rotate(360deg)}}.loading{animation:spin 1s linear infinite}