:root{--color-bg:#f5f6f8;--color-surface:#fff;--color-border:#e2e5ea;--color-text:#1a1d23;--color-text-secondary:#6b7280;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-light:#eff6ff;--color-success:#16a34a;--color-warning:#d97706;--color-danger:#dc2626;--color-sidebar:#111827;--color-sidebar-text:#d1d5db;--color-sidebar-active:#2563eb;--radius:8px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 12px rgba(0,0,0,.08);--font:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body,html{min-height:100vh;font-family:var(--font);background:var(--color-bg);color:var(--color-text);font-size:14px;line-height:1.5}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--color-sidebar);color:var(--color-sidebar-text);display:flex;flex-direction:column;flex-shrink:0;position:fixed;top:0;left:0;bottom:0;z-index:100}.sidebar-logo{padding:20px 16px 12px;font-size:18px;font-weight:700;color:#fff;letter-spacing:-.3px}.sidebar-logo span{color:var(--color-primary)}.sidebar-nav{flex:1 1;padding:8px 0}.sidebar-link{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--color-sidebar-text);font-size:13.5px;transition:background .15s,color .15s;text-decoration:none;border-left:3px solid transparent}.sidebar-link:hover{background:hsla(0,0%,100%,.06);color:#fff;text-decoration:none}.sidebar-link.active{background:rgba(37,99,235,.12);color:#fff;border-left-color:var(--color-primary)}.sidebar-link svg{width:18px;height:18px;opacity:.7;flex-shrink:0}.sidebar-link.active svg{opacity:1}.sidebar-section{padding:16px 16px 6px;font-size:10.5px;font-weight:600;text-transform:uppercase;letter-spacing:.8px;color:#6b7280}.main-content{flex:1 1;margin-left:220px;padding:24px 32px;min-width:0}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.page-title{font-size:22px;font-weight:700;color:var(--color-text)}.page-subtitle{font-size:13px;color:var(--color-text-secondary);margin-top:2px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.card-header{padding:14px 18px;border-bottom:1px solid var(--color-border);font-weight:600;font-size:14px;display:flex;align-items:center;justify-content:space-between}.card-body{padding:18px}.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;font-size:13px;font-weight:500;border:1px solid var(--color-border);border-radius:6px;background:var(--color-surface);color:var(--color-text);cursor:pointer;transition:all .15s}.btn:hover{background:#f3f4f6}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover{background:var(--color-primary-hover)}.btn-danger{background:#fff;color:var(--color-danger);border-color:var(--color-danger)}.btn-danger:hover{background:#fef2f2}.btn-sm{padding:4px 10px;font-size:12px}.data-table{width:100%;border-collapse:collapse}.data-table th{text-align:left;font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-secondary);background:#fafbfc}.data-table td,.data-table th{padding:10px 14px;border-bottom:1px solid var(--color-border)}.data-table td{font-size:13.5px}.data-table tr:hover td{background:#f8f9fb}.data-table .link{color:var(--color-primary);cursor:pointer}.data-table .link:hover{text-decoration:underline}.badge{display:inline-block;padding:2px 8px;font-size:11.5px;font-weight:500;border-radius:10px;background:#f0f0f0;color:#555}.badge-blue{background:#dbeafe;color:#1e40af}.badge-green{background:#dcfce7;color:#166534}.badge-yellow{background:#fef3c7;color:#92400e}.badge-orange{background:#fff7ed;color:#9a3412}.badge-red{background:#fee2e2;color:#991b1b}.badge-gray{background:#f3f4f6;color:#4b5563}.form-group{margin-bottom:14px}.form-label{display:block;margin-bottom:4px;font-size:12.5px;font-weight:500;color:var(--color-text-secondary)}.form-input{width:100%;padding:8px 12px;font-size:13.5px;border:1px solid var(--color-border);border-radius:6px;background:#fff;color:var(--color-text);transition:border-color .15s}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.form-select{width:100%;padding:8px 12px;font-size:13.5px;border:1px solid var(--color-border);border-radius:6px;background:#fff;color:var(--color-text)}.form-row{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}.pagination{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-top:1px solid var(--color-border);font-size:13px;color:var(--color-text-secondary)}.pagination-buttons{display:flex;gap:6px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:20px;gap:20px}.detail-field{margin-bottom:12px}.detail-label{font-size:11.5px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--color-text-secondary);margin-bottom:2px}.detail-value{font-size:14px}.toolbar{display:flex;align-items:center;gap:10px;margin-bottom:14px;flex-wrap:wrap}.toolbar .form-input,.toolbar .form-select{width:auto;min-width:180px}.empty-state{text-align:center;padding:40px 20px;color:var(--color-text-secondary)}.empty-state p{margin-top:8px;font-size:13px}.loading{padding:40px;color:var(--color-text-secondary)}.loading,.modal-overlay{display:flex;align-items:center;justify-content:center}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:200}.modal{background:var(--color-surface);border-radius:var(--radius);box-shadow:var(--shadow-md);width:520px;max-height:80vh;overflow-y:auto}.modal-header{padding:16px 20px;border-bottom:1px solid var(--color-border);font-weight:600;display:flex;align-items:center;justify-content:space-between}.modal-body{padding:20px}.modal-footer{padding:14px 20px;border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:8px}.tabs{display:flex;gap:0;border-bottom:1px solid var(--color-border);margin-bottom:16px}.tab{padding:10px 16px;font-size:13px;font-weight:500;color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s}.tab:hover{color:var(--color-text)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}@keyframes skeleton-pulse{0%,to{opacity:.4}50%{opacity:.8}}