@import"https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@300;400;500;600;700&display=swap";*{margin:0;padding:0;box-sizing:border-box}body{font-family:"Source Sans 3",Source Sans Pro,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:#f8fafc;color:#334155;line-height:1.6}.nav{background:#fff;border-bottom:1px solid #e2e8f0;padding:1rem 0;box-shadow:0 1px 3px #0000001a}.nav-container{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 2rem}.nav-links{display:flex;gap:2rem}.nav-link{text-decoration:none;color:#475569;font-weight:500;padding:.5rem 1rem;border-radius:8px;transition:all .15s ease}.nav-link:hover{background-color:#f8fafc;transform:translateY(-1px)}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s;font-size:.875rem}.btn-primary{background-color:#3b82f6;color:#fff}.btn-primary:hover:not(:disabled){background-color:#2563eb}.btn-primary:disabled{background-color:#94a3b8;cursor:not-allowed}.btn-secondary{background-color:transparent;color:#3b82f6;border:1px solid #3b82f6}.btn-secondary:hover:not(:disabled){background-color:#3b82f6;color:#fff}.container{max-width:1200px;margin:0 auto;padding:2rem}.card{background:#fff;border-radius:12px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000001a;overflow:hidden}.card-body{padding:1.5rem}.dataset-section{margin-bottom:2rem}.section-title{font-size:1.5rem;font-weight:600;color:#0f172a;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.section-title:before{content:"";width:4px;height:1.5rem;background-color:#3b82f6;border-radius:2px}.dataset-item{padding:1rem;border-bottom:1px solid #f1f5f9;display:flex;align-items:center;gap:1rem;transition:background-color .2s}.dataset-item:hover{background-color:#f8fafc}.dataset-item:last-child{border-bottom:none}.dataset-checkbox{width:1.25rem;height:1.25rem;cursor:pointer;accent-color:#3b82f6}.dataset-info{flex:1}.dataset-name{font-weight:600;color:#0f172a;margin-bottom:.25rem}.dataset-meta{font-size:.875rem;color:#64748b}.controls{display:flex;gap:1rem;align-items:center;margin-bottom:2rem;padding:1rem;background:#fff;border-radius:8px;border:1px solid #e2e8f0}.welcome{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:2rem;border-radius:12px;margin-bottom:2rem}.welcome h1{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.welcome p{font-size:1.125rem;opacity:.9}.spinner{width:16px;height:16px;border:2px solid transparent;border-top:2px solid currentColor;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.request-access-card{background:#fff;border-radius:12px;border:1px solid #e2e8f0;padding:2rem;margin-top:1.5rem;box-shadow:0 1px 3px #0000001a}.request-access-card h3{color:#0f172a;font-size:1.5rem;font-weight:600;margin-bottom:.75rem}.request-access-card p{color:#64748b;margin-bottom:1.5rem}.request-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-weight:500;color:#374151;font-size:.875rem}.form-group input,.form-group textarea{padding:.75rem;border:1px solid #d1d5db;border-radius:6px;font-size:.875rem;transition:border-color .2s}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}.form-group textarea{resize:vertical;min-height:100px}.submit-btn{background-color:#3b82f6;color:#fff;padding:.875rem 1.5rem;border:none;border-radius:8px;font-weight:500;cursor:pointer;transition:all .2s;margin-top:.5rem}.submit-btn:hover:not(:disabled){background-color:#2563eb}.submit-btn:disabled{background-color:#94a3b8;cursor:not-allowed}