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.8s linear infinite}.loading-text{color:var(--text-gray);font-size:.9rem}@keyframes spin{to{transform:rotate(360deg)}}.viewer-controls{position:absolute;bottom:1rem;left:50%;transform:translate(-50%);background:#fff;border-radius:10px;padding:.5rem .75rem;box-shadow:0 4px 16px #0000001a;display:flex;gap:.25rem;border:1px solid var(--border);z-index:10}.control-btn{width:38px;height:38px;background:transparent;border:none;border-radius:7px;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center;font-size:1.1rem;color:var(--text-gray)}.control-btn:hover{background:var(--primary-light);color:var(--primary)}.chat-panel{border:1px solid var(--border);border-radius:10px;overflow:hidden;display:flex;flex-direction:column}.chat-header{display:flex;align-items:center;gap:.5rem;padding:.65rem .9rem;background:#f8f8f8;border-bottom:1px solid var(--border);flex-shrink:0}.chat-title{font-weight:600;font-size:.85rem;flex:1}.chat-status{font-size:.72rem;color:#999;background:#e8e8e8;padding:2px 8px;border-radius:10px}.chat-messages{height:180px;overflow-y:auto;padding:.65rem;display:flex;flex-direction:column;gap:.4rem;background:#fff}.chat-message{padding:.45rem .7rem;border-radius:8px;font-size:.8rem;line-height:1.4;max-width:92%}.chat-message.user{background:var(--primary);color:#fff;align-self:flex-end}.chat-message.assistant{background:#f0f0f0;color:#333;align-self:flex-start}.chat-message.error{background:#ffebee;color:#c62828}.chat-input-row{display:flex;border-top:1px solid var(--border);flex-shrink:0}.chat-input{flex:1;border:none;padding:.55rem .75rem;font-size:.82rem;outline:none;background:#fff}.chat-input:disabled{background:#fafafa;color:#aaa}.chat-send-btn{border:none;background:var(--primary);color:#fff;padding:0 .9rem;cursor:pointer;font-size:.9rem;transition:background .15s}.chat-send-btn:hover{background:var(--secondary)}.chat-send-btn:disabled{background:#ccc;cursor:not-allowed}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--primary-light);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--primary)}html,body,#root{height:100%;overflow:hidden}body.landing-page,body.landing-page #root{overflow:scroll!important;height:auto!important}#viewer-canvas{position:relative!important}.loading-overlay{display:flex!important}.container{max-width:1100px;margin:0 auto}.container--wide{max-width:1300px}.flip-card{background-color:transparent;perspective:1000px;height:250px}.flip-card-inner{position:relative;width:100%;height:100%;text-align:center;transition:transform .6s cubic-bezier(.4,0,.2,1);transform-style:preserve-3d}.flip-card:hover 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1rem}.section-benefits{padding:3rem 1rem}}