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ease;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-width:140px;direction:rtl}.btn:hover{opacity:.9;box-shadow:0 10px 20px #00000026}.btn-primary:hover{opacity:.85}.btn:active{transform:translateY(0)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-primary{background:#8a63c5;color:#fff;box-shadow:0 0 10px #667eea38}.btn-outline{background:transparent;color:var(--primary-dark);border:2px solid var(--primary-dark)}.open-new-tab-btn{color:#fffffff2;border-color:#ffffff91}.btn-outline:hover{background:var(--primary-dark);color:#fff}.reaction-buttons{display:flex;align-items:center;justify-content:center;gap:1.5rem;margin-bottom:1rem;padding:1rem;background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-radius:20px;box-shadow:0 8px 32px #00000014;width:fit-content}.form-container{width:70vw;max-width:500px;display:flex;animation:slideUp .5s ease}.reaction-form{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:2.5rem;border-radius:24px;box-shadow:0 20px 60px #0000001a;border:1px solid rgba(255,255,255,.3);direction:rtl}.form-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:2rem}.form-title{color:var(--primary-dark);font-size:1.5rem;font-weight:600}.form-icon{background:linear-gradient(135deg,#667eea,#764ba2);width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff}.form-group{margin-bottom:1.5rem}.sheet-label{display:flex;flex-direction:column;gap:.25rem;margin-bottom:.75rem;color:var(--text-dark);font-size:1rem;font-weight:500}.label-text{color:var(--primary-dark)}.label-hint{font-size:.875rem;color:#718096;opacity:.8}.sheet-input{padding:1rem 1.25rem;font-family:inherit;font-size:1rem;border:2px solid #e2e8f0;border-radius:12px;background:#fff;transition:all .3s ease;color:var(--text-dark)}.sheet-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea33}.sheet-input::placeholder{color:#a0aec0}.form-actions{margin:1rem 0 .5rem}.submit-btn{width:100%;padding:1rem;font-size:1.1rem}.spinner{display:inline-block;width:1rem;height:1rem;border:2px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite;margin-right:.5rem}.form-footer{margin-top:1.5rem;padding-top:.5rem;border-top:1px solid #e2e8f0}.help-text{color:#718096;font-size:.875rem;line-height:1.6;margin:0}.url-example{display:block;background:#f7fafc;padding:.5rem .75rem;border-radius:6px;font-family:Courier New,monospace;font-size:.8rem;color:#2d3748;margin-top:.5rem;direction:ltr;text-align:left}.document-viewer-container{width:70vw;height:65vh;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 20px 60px #0000001a;animation:fadeIn .5s ease}.viewer-header{display:flex;justify-content:space-between;align-items:center;padding:.7rem 2rem;background-color:#8a63c5;color:#fff}.viewer-title{font-size:1.25rem;font-weight:600}.iframe-container{width:100%;display:flex;align-items:center;justify-content:center;margin-top:.5rem}.reaction-iframe{width:100%;height:70vh;border:none;display:block}@media (max-width: 768px){.reactions-container{padding:1rem}.reactions-title{font-size:2rem}.reaction-buttons{flex-direction:column;width:100%;max-width:300px}.btn{width:100%}.reaction-form{padding:1.5rem}.document-viewer-container{margin:0 -1rem;border-radius:0}.viewer-header{padding:1rem;flex-direction:column;gap:1rem;text-align:center}.open-new-tab-btn{width:100%}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes spin{to{transform:rotate(360deg)}}