@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}:root{--nav-height: 60px;--container-padding: 1rem;--card-padding: 1rem;--section-spacing: 1.5rem}@media(min-width:768px){:root{--container-padding: 2rem;--card-padding: 1.5rem;--section-spacing: 2rem}}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;position:relative}.nav-container{display:flex;justify-content:space-between;align-items:center;max-width:1200px;margin:0 auto;padding:0 var(--container-padding)}.nav-toggle{display:flex;flex-direction:column;justify-content:center;gap:4px;width:30px;height:30px;background:none;border:none;cursor:pointer;padding:0;z-index:1001;position:relative}.nav-toggle span{display:block;width:25px;height:2px;background-color:#475569;transition:all .3s ease;transform-origin:center}.nav-toggle.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}.nav-toggle.active span:nth-child(2){opacity:0}.nav-toggle.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}@media(min-width:768px){.nav-toggle{display:none}}.nav-links{display:none;position:fixed;top:var(--nav-height);left:0;right:0;background:#fff;flex-direction:column;padding:1rem var(--container-padding);gap:.5rem;box-shadow:0 4px 6px #0000001a;z-index:1000}.nav-links.active{display:flex}@media(min-width:768px){.nav-links{display:flex;position:static;flex-direction:row;padding:0;gap:2rem;box-shadow:none}}.nav-link{text-decoration:none;color:#475569;font-weight:500;padding:.75rem 1rem;border-radius:8px;transition:all .15s ease;display:block;text-align:center}.nav-link:hover{background-color:#f8fafc;transform:translateY(-1px)}@media(max-width:767px){.nav-link{padding:1rem;border-bottom:1px solid #f1f5f9}.nav-link:last-child{border-bottom:none}}.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:var(--container-padding)}.card{background:#fff;border-radius:12px;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000001a;overflow:hidden}.card-body{padding:var(--card-padding)}.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:1.5rem;border-radius:12px;margin-bottom:var(--section-spacing)}@media(min-width:768px){.welcome{padding:2rem}}.welcome h1{font-size:1.75rem;font-weight:700;margin-bottom:.5rem}@media(min-width:640px){.welcome h1{font-size:2rem}}@media(min-width:768px){.welcome h1{font-size:2.5rem}}.welcome p{font-size:1rem;opacity:.9}@media(min-width:768px){.welcome p{font-size:1.125rem}}.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}.responsive-grid{display:grid;gap:1rem;grid-template-columns:1fr}@media(min-width:768px){.responsive-grid.cols-2{grid-template-columns:repeat(2,1fr)}.responsive-grid.cols-3{grid-template-columns:repeat(3,1fr)}.responsive-grid.cols-4{grid-template-columns:repeat(4,1fr)}}@media(min-width:1024px){.responsive-grid.cols-3-lg{grid-template-columns:repeat(3,1fr)}.responsive-grid.cols-4-lg{grid-template-columns:repeat(4,1fr)}}.table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch}@media(max-width:767px){.mobile-cards table{display:block}.mobile-cards thead{display:none}.mobile-cards tbody{display:block}.mobile-cards tr{display:block;margin-bottom:1rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:1rem}.mobile-cards td{display:flex;justify-content:space-between;padding:.5rem 0;border:none}.mobile-cards td:before{content:attr(data-label);font-weight:600;margin-right:1rem}}.button-group{display:flex;gap:.5rem;flex-wrap:wrap}@media(max-width:640px){.button-group-stack{flex-direction:column}.button-group-stack .btn{width:100%}}.text-break{word-break:break-word;overflow-wrap:break-word}@media(max-width:767px){button,.btn,.nav-link,input[type=checkbox],input[type=radio]{min-height:44px;min-width:44px}}.mb-mobile{margin-bottom:1rem}@media(min-width:768px){.mb-mobile{margin-bottom:0}}.mobile-only{display:block}.desktop-only{display:none}@media(min-width:768px){.mobile-only{display:none}.desktop-only{display:block}}