:root{--primary:#3b82f6;--primary-hover:#2563eb;--primary-light:#eff6ff;--danger:#ef4444;--danger-hover:#dc2626;--danger-light:#fee2e2;--success:#10b981;--success-light:#d1fae5;--warning:#f59e0b;--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:#fff;--radius:12px;--radius-sm:8px;--shadow:0 1px 3px rgba(0,0,0,.08),0 1px 2px rgba(0,0,0,.06);--shadow-md:0 4px 6px -1px rgba(0,0,0,.08),0 2px 4px -1px rgba(0,0,0,.04);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.08),0 4px 6px -2px rgba(0,0,0,.04)}*{box-sizing:border-box;padding:0}*,body{margin:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.6}a{color:inherit;text-decoration:none}h1{font-size:28px;font-weight:700;margin-bottom:8px}h2{font-size:20px;margin-bottom:16px;color:var(--gray-900)}h2,h3{font-weight:600}h3{font-size:16px;color:var(--gray-700)}h3,p{margin-bottom:12px}.container{max-width:1200px;margin:0 auto;padding:32px 24px}.page-header{margin-bottom:32px}.page-title{font-size:28px;font-weight:700;color:var(--gray-900);margin-bottom:8px}.page-subtitle{font-size:15px;color:var(--gray-500)}.card{background:var(--white);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);border:1px solid var(--gray-200)}.card-sm{padding:16px}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--gray-200)}.grid{display:grid;grid-gap:20px;gap:20px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.row{display:flex;gap:12px;align-items:center}.space-between{justify-content:space-between}.form-group{margin-bottom:20px}label{display:block;font-size:14px;font-weight:500;color:var(--gray-700);margin-bottom:8px}button,input,select,textarea{font:inherit}input,select,textarea{padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--gray-300);width:100%;transition:all .2s;font-size:15px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}input:disabled,select:disabled,textarea:disabled{background:var(--gray-100);cursor:not-allowed;opacity:.6}button{padding:10px 20px;border-radius:var(--radius-sm);border:none;background:var(--primary);color:var(--white);cursor:pointer;font-weight:500;font-size:15px;transition:all .2s;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}button:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}button:active:not(:disabled){transform:translateY(0)}button:disabled{opacity:.5;cursor:not-allowed;transform:none}button.secondary{background:var(--white);color:var(--gray-700);border:1px solid var(--gray-300)}button.secondary:hover:not(:disabled){background:var(--gray-50);border-color:var(--gray-400)}button.danger{background:var(--danger)}button.danger:hover:not(:disabled){background:var(--danger-hover)}button.success{background:var(--success)}button.success:hover:not(:disabled){background:#059669}.nav{background:var(--white);color:var(--gray-900);padding:0;border-bottom:1px solid var(--gray-200);box-shadow:var(--shadow);position:-webkit-sticky;position:sticky;top:0;z-index:100}.nav-container{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center;height:64px}.nav-brand{font-size:20px;color:var(--gray-900);gap:12px}.nav-brand,.nav-brand-icon{font-weight:700;display:flex;align-items:center}.nav-brand-icon{width:32px;height:32px;background:var(--primary);border-radius:8px;justify-content:center;color:var(--white);font-size:18px}.nav-links{display:flex;gap:4px;align-items:center}.nav-link{padding:8px 16px;border-radius:var(--radius-sm);font-weight:500;color:var(--gray-600);transition:all .2s}.nav-link:hover{background:var(--gray-100);color:var(--gray-900)}.nav-link.active{background:var(--primary-light);color:var(--primary)}.table{width:100%;border-collapse:collapse;margin-top:16px}.table th{text-align:left;padding:12px 16px;border-bottom:2px solid var(--gray-200);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--gray-600);background:var(--gray-50)}.table td{padding:14px 16px;border-bottom:1px solid var(--gray-200);font-size:15px}.table tr:hover{background:var(--gray-50)}.table tr:last-child td{border-bottom:none}.badge{display:inline-flex;padding:4px 12px;border-radius:16px;font-size:13px;font-weight:500;white-space:nowrap}.badge-success{background:var(--success-light);color:var(--success)}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-warning{background:var(--warning-light);color:var(--warning)}.badge-gray{background:var(--gray-100);color:var(--gray-600)}.alert{padding:14px 16px;border-radius:var(--radius-sm);margin-bottom:20px;font-size:14px;border:1px solid}.alert-error{background:var(--danger-light);border-color:var(--danger);color:var(--danger)}.alert-success{background:var(--success-light);border-color:var(--success);color:var(--success)}.alert-warning{background:var(--warning-light);border-color:var(--warning);color:var(--warning)}.empty-state{text-align:center;padding:48px 24px;color:var(--gray-500)}.empty-state-icon{font-size:48px;margin-bottom:16px;opacity:.5}.empty-state-title{font-size:18px;font-weight:600;color:var(--gray-700);margin-bottom:8px}.empty-state-text{font-size:15px;color:var(--gray-500)}.loading{display:inline-block;width:16px;height:16px;border:2px solid;border-top:2px solid transparent;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:20px;gap:20px;margin-bottom:32px}.stat-card{background:var(--white);border-radius:var(--radius);padding:20px;border:1px solid var(--gray-200)}.stat-label{font-size:13px;font-weight:500;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}.stat-value{font-size:32px;font-weight:700;color:var(--gray-900)}.stat-change{font-size:13px;margin-top:4px}.stat-change.positive{color:var(--success)}.stat-change.negative{color:var(--danger)}.muted{color:var(--gray-500)}.text-sm{font-size:14px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}