*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary: #2563eb;--primary-dark: #1d4ed8;--primary-light: #dbeafe;--danger: #dc2626;--danger-light: #fee2e2;--success: #16a34a;--success-light: #dcfce7;--warning: #d97706;--warning-light: #fef3c7;--gray-50: #f9fafb;--gray-100: #f3f4f6;--gray-200: #e5e7eb;--gray-300: #d1d5db;--gray-400: #9ca3af;--gray-500: #6b7280;--gray-600: #4b5563;--gray-700: #374151;--gray-800: #1f2937;--gray-900: #111827;--white: #ffffff;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,sans-serif;background-color:var(--gray-50);color:var(--gray-800);line-height:1.5;font-size:14px}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;padding:24px;max-width:1200px;width:100%;margin:0 auto}.navbar{background-color:var(--white);border-bottom:1px solid var(--gray-200);padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:60px;box-shadow:var(--shadow);position:sticky;top:0;z-index:100}.navbar-brand{font-size:18px;font-weight:700;color:var(--primary);text-decoration:none;display:flex;align-items:center;gap:8px}.navbar-brand:hover{text-decoration:none}.navbar-nav{display:flex;align-items:center;gap:4px;list-style:none}.nav-link{padding:6px 12px;border-radius:var(--radius);color:var(--gray-600);font-weight:500;transition:background-color .15s,color .15s;text-decoration:none}.nav-link:hover{background-color:var(--gray-100);color:var(--gray-900);text-decoration:none}.nav-link.active{background-color:var(--primary-light);color:var(--primary)}.navbar-right{display:flex;align-items:center;gap:12px}.user-badge{font-size:12px;background-color:var(--primary-light);color:var(--primary);padding:2px 8px;border-radius:999px;font-weight:600;text-transform:uppercase}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .15s;text-decoration:none;line-height:1}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background-color:var(--primary);color:var(--white)}.btn-primary:hover:not(:disabled){background-color:var(--primary-dark);text-decoration:none;color:var(--white)}.btn-secondary{background-color:var(--white);color:var(--gray-700);border:1px solid var(--gray-300)}.btn-secondary:hover:not(:disabled){background-color:var(--gray-50);text-decoration:none;color:var(--gray-700)}.btn-danger{background-color:var(--danger);color:var(--white)}.btn-danger:hover:not(:disabled){background-color:#b91c1c;text-decoration:none;color:var(--white)}.btn-success{background-color:var(--success);color:var(--white)}.btn-success:hover:not(:disabled){background-color:#15803d;text-decoration:none;color:var(--white)}.btn-sm{padding:4px 10px;font-size:12px}.btn-lg{padding:10px 24px;font-size:16px}.card{background-color:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--gray-100)}.card-title{font-size:16px;font-weight:600;color:var(--gray-900)}.form-group{margin-bottom:16px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--gray-700);margin-bottom:6px}.form-control{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--radius);font-size:14px;color:var(--gray-800);background-color:var(--white);transition:border-color .15s,box-shadow .15s;outline:none}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px #2563eb1a}.form-control::placeholder{color:var(--gray-400)}textarea.form-control{resize:vertical;min-height:80px}select.form-control{cursor:pointer}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.form-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px;padding-top:16px;border-top:1px solid var(--gray-100)}.auth-container{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,var(--primary) 0%,#1e40af 100%);padding:24px}.auth-card{background-color:var(--white);border-radius:12px;box-shadow:var(--shadow-lg);padding:40px;width:100%;max-width:420px}.auth-logo{text-align:center;margin-bottom:32px}.auth-logo h1{font-size:24px;font-weight:700;color:var(--primary)}.auth-logo p{color:var(--gray-500);font-size:13px;margin-top:4px}.auth-title{font-size:20px;font-weight:600;color:var(--gray-900);margin-bottom:24px}.auth-footer{text-align:center;margin-top:24px;color:var(--gray-500);font-size:13px}.alert{padding:12px 16px;border-radius:var(--radius);font-size:13px;margin-bottom:16px;display:flex;align-items:flex-start;gap:8px}.alert-error{background-color:var(--danger-light);color:var(--danger);border:1px solid #fca5a5}.alert-success{background-color:var(--success-light);color:var(--success);border:1px solid #86efac}.alert-warning{background-color:var(--warning-light);color:var(--warning);border:1px solid #fcd34d}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}.page-title{font-size:22px;font-weight:700;color:var(--gray-900)}.page-subtitle{font-size:13px;color:var(--gray-500);margin-top:4px}.table-container{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--gray-200)}table{width:100%;border-collapse:collapse;font-size:13px}thead{background-color:var(--gray-50)}th{padding:10px 16px;text-align:left;font-weight:600;color:var(--gray-600);border-bottom:1px solid var(--gray-200);white-space:nowrap}td{padding:12px 16px;border-bottom:1px solid var(--gray-100);color:var(--gray-700);vertical-align:middle}tr:last-child td{border-bottom:none}tr:hover td{background-color:var(--gray-50)}.dataset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px}.dataset-card{background-color:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;cursor:pointer;transition:box-shadow .15s,border-color .15s,transform .1s;text-decoration:none;color:inherit;display:block}.dataset-card:hover{box-shadow:var(--shadow-md);border-color:var(--primary);transform:translateY(-1px);text-decoration:none;color:inherit}.dataset-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:8px}.dataset-card-title{font-size:15px;font-weight:600;color:var(--gray-900);line-height:1.3}.dataset-card-meta{font-size:12px;color:var(--gray-500);margin-top:4px}.dataset-card-description{font-size:13px;color:var(--gray-600);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.dataset-card-footer{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.025em}.badge-approved{background-color:var(--success-light);color:var(--success)}.badge-pending{background-color:var(--warning-light);color:var(--warning)}.badge-public{background-color:var(--primary-light);color:var(--primary)}.badge-private{background-color:var(--gray-100);color:var(--gray-500)}.badge-restricted{background-color:#fce7f3;color:#9d174d}.badge-admin{background-color:#ede9fe;color:#5b21b6}.badge-user{background-color:var(--gray-100);color:var(--gray-600)}.badge-active{background-color:var(--success-light);color:var(--success)}.badge-inactive{background-color:var(--gray-100);color:var(--gray-500)}.badge-pending-user{background-color:var(--warning-light);color:var(--warning)}.keywords-container{display:flex;flex-wrap:wrap;gap:6px}.keyword-chip{background-color:var(--primary-light);color:var(--primary);padding:3px 10px;border-radius:999px;font-size:12px;font-weight:500}.keyword-chip-selectable{cursor:pointer;border:2px solid transparent;transition:all .15s}.keyword-chip-selectable:hover{border-color:var(--primary)}.keyword-chip-selectable.selected{background-color:var(--primary);color:var(--white);border-color:var(--primary)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.detail-section{margin-bottom:24px}.detail-section-title{font-size:13px;font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;margin-bottom:12px}.detail-field{display:flex;flex-direction:column;gap:2px;margin-bottom:12px}.detail-field-label{font-size:12px;color:var(--gray-500);font-weight:500}.detail-field-value{font-size:14px;color:var(--gray-800)}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px 24px;color:var(--gray-400)}.spinner{width:32px;height:32px;border:3px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin-bottom:12px}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:60px 24px;color:var(--gray-400)}.empty-state-icon{font-size:40px;margin-bottom:12px}.empty-state-title{font-size:16px;font-weight:600;color:var(--gray-600);margin-bottom:4px}.empty-state-desc{font-size:13px}.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background-color:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.stat-value{font-size:28px;font-weight:700;color:var(--primary)}.stat-label{font-size:12px;color:var(--gray-500);margin-top:4px}.filter-bar{display:flex;gap:12px;margin-bottom:20px;flex-wrap:wrap}.filter-bar .form-control{max-width:200px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:24px}.modal{background-color:var(--white);border-radius:12px;box-shadow:var(--shadow-lg);width:100%;max-width:480px;padding:32px}.modal-title{font-size:18px;font-weight:600;margin-bottom:16px}.modal-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}.doi-list{list-style:none;display:flex;flex-direction:column;gap:6px}.doi-item{display:flex;align-items:center;gap:8px;background-color:var(--gray-50);padding:8px 12px;border-radius:var(--radius);font-size:13px}.doi-item-remove{margin-left:auto;background:none;border:none;cursor:pointer;color:var(--gray-400);font-size:16px;line-height:1;padding:0 4px}.doi-item-remove:hover{color:var(--danger)}.tabs{display:flex;border-bottom:2px solid var(--gray-200);margin-bottom:24px;gap:0}.tab{padding:10px 20px;cursor:pointer;font-weight:500;color:var(--gray-500);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .15s;background:none;border-top:none;border-left:none;border-right:none;font-size:14px}.tab:hover{color:var(--gray-700)}.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.search-input{flex:1;max-width:300px}@media (max-width: 768px){.form-row,.detail-grid,.dataset-grid{grid-template-columns:1fr}.navbar-nav{display:none}.main-content{padding:16px}}