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#0000004d}.viewer-3d-back-btn:hover{background:#000c;transform:scale(1.05)}.viewer-3d-back-btn:active{transform:scale(.95)}.viewer-3d-bottom-controls{position:absolute;bottom:2rem;left:50%;transform:translate(-50%);display:flex;gap:1rem;z-index:100}.viewer-3d-reset-btn,.viewer-3d-share-btn{padding:.75rem 1.5rem;border-radius:2rem;background:#0009;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:none;color:#fff;font-size:1rem;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all .2s ease;box-shadow:0 2px 10px #0000004d;font-weight:500}.viewer-3d-reset-btn:hover,.viewer-3d-share-btn:hover{background:#000c;transform:translateY(-2px);box-shadow:0 4px 15px #0006}.viewer-3d-reset-btn:active,.viewer-3d-share-btn:active{transform:translateY(0)}.viewer-3d-reset-btn svg,.viewer-3d-share-btn 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p{margin:0;color:#666;font-size:1rem}.viewer-mode-loading{padding:3rem;text-align:center;color:#666}.viewer-mode-spinner{width:40px;height:40px;border:3px solid rgba(0,0,0,.1);border-top-color:#0ea5e9;border-radius:50%;animation:viewer-mode-spin 1s linear infinite;margin:0 auto 1rem}@keyframes viewer-mode-spin{to{transform:rotate(360deg)}}.viewer-mode-options{padding:2rem;display:flex;flex-direction:column;gap:1rem}.viewer-mode-option{display:flex;align-items:flex-start;gap:1rem;padding:1.5rem;border:2px solid #e0e0e0;border-radius:.75rem;cursor:pointer;transition:all .2s ease;background:#fff}.viewer-mode-option:hover{border-color:#0ea5e9;box-shadow:0 4px 12px 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