:root{--zb-primary:#1ca3dd;--zb-primary-deep:#0e7bad;--zb-primary-light:#5ec4ec;--zb-accent:#c9a24b;--zb-danger:#d94a4a;--zb-success:#2f9e5d;--zb-text:#1a2733;--zb-text-muted:#64748b;--zb-border:#e2e8f0;--zb-border-strong:#cbd5e1;--zb-bg:#f7fafc;--zb-bg-alt:#eef4f9;--zb-card:#fff;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(15,23,42,.05);--shadow-md:0 4px 12px rgba(15,23,42,.08);--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-mono:ui-monospace,"SF Mono",Menlo,Monaco,Consolas,monospace}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--zb-bg);color:var(--zb-text);font-family:var(--font-sans);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--zb-primary-deep);text-decoration:none}a:hover{text-decoration:underline}.admin-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.admin-sidebar{background:#fff;border-right:1px solid var(--zb-border);padding:1.5rem 1rem;display:flex;flex-direction:column;gap:.25rem}.admin-sidebar-brand{display:flex;align-items:center;gap:.625rem;padding:.375rem .5rem 1rem;border-bottom:1px solid var(--zb-border);margin-bottom:.75rem}.admin-sidebar-brand-logo{width:36px;height:36px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--zb-primary),var(--zb-primary-deep));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:1.125rem}.admin-sidebar-brand-name{font-weight:700;color:var(--zb-text);font-size:.9375rem}.admin-sidebar-brand-sub{color:var(--zb-text-muted);font-size:.75rem}.admin-nav-link{padding:.5rem .75rem;border-radius:var(--radius-md);color:var(--zb-text);font-weight:500;cursor:pointer;display:block}.admin-nav-link:hover{background:var(--zb-bg-alt);text-decoration:none}.admin-nav-link.active{background:var(--zb-primary);color:#fff}.admin-nav-link.active:hover{background:var(--zb-primary-deep)}.admin-sidebar-footer{margin-top:auto;padding-top:1rem;border-top:1px solid var(--zb-border);font-size:.75rem;color:var(--zb-text-muted)}.admin-main{padding:1.75rem 2rem;overflow-x:auto}.admin-page-header{margin-bottom:1.25rem;display:flex;align-items:baseline;justify-content:space-between;gap:1rem;flex-wrap:wrap}.admin-page-title{font-size:1.375rem;font-weight:700;color:var(--zb-text);margin:0}.admin-page-sub{color:var(--zb-text-muted);font-size:.8125rem;margin:.25rem 0 0}.card{background:var(--zb-card);border:1px solid var(--zb-border);border-radius:var(--radius-lg);padding:1.25rem;box-shadow:var(--shadow-sm)}.btn{display:inline-flex;align-items:center;gap:.375rem;padding:.5rem .875rem;border-radius:var(--radius-md);font-weight:600;font-size:.875rem;border:1px solid transparent;cursor:pointer;transition:background .15s ease,opacity .15s ease}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--zb-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--zb-primary-deep)}.btn-outline{background:#fff;color:var(--zb-text);border-color:var(--zb-border-strong)}.btn-outline:hover:not(:disabled){background:var(--zb-bg-alt)}.btn-danger{background:#fff;color:var(--zb-danger);border-color:var(--zb-danger)}.btn-danger:hover:not(:disabled){background:var(--zb-danger);color:#fff}.btn-sm{padding:.3125rem .625rem;font-size:.8125rem}.form-row{display:flex;flex-direction:column;gap:.375rem;margin-bottom:.875rem}.form-label{font-weight:600;font-size:.8125rem;color:var(--zb-text)}.form-hint{font-size:.75rem;color:var(--zb-text-muted)}.form-input,.form-textarea{padding:.5rem .75rem;border-radius:var(--radius-md);border:1px solid var(--zb-border-strong);background:#fff;color:var(--zb-text);font-family:inherit;font-size:.875rem;width:100%}.form-input:focus,.form-textarea:focus{outline:2px solid var(--zb-primary-light);outline-offset:1px;border-color:var(--zb-primary)}.form-textarea{min-height:80px;resize:vertical;font-family:var(--font-mono);line-height:1.4}.form-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));grid-gap:.75rem 1rem;gap:.75rem 1rem}.table-wrap{overflow-x:auto;border:1px solid var(--zb-border);border-radius:var(--radius-lg);background:#fff}.table{width:100%;border-collapse:collapse;font-size:.875rem}.table th{text-align:left;background:var(--zb-bg-alt);color:var(--zb-text-muted);font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}.table td,.table th{padding:.75rem .875rem;border-bottom:1px solid var(--zb-border)}.table td{vertical-align:top}.table tr:last-child td{border-bottom:none}.table tr:hover td{background:var(--zb-bg)}.table-actions{display:flex;gap:.375rem;justify-content:flex-end}.badge{display:inline-block;padding:.1875rem .5rem;border-radius:9999px;font-size:.6875rem;font-weight:600;background:var(--zb-bg-alt);color:var(--zb-primary-deep);text-transform:uppercase;letter-spacing:.03em}.badge-muted{background:#eef2f7;color:var(--zb-text-muted)}.badge-danger{background:#fde7e7;color:var(--zb-danger)}.badge-success{background:#e5f6ed;color:var(--zb-success)}.alert{padding:.75rem .875rem;border-radius:var(--radius-md);border:1px solid;font-size:.8125rem;margin-bottom:1rem}.alert-info{background:rgba(28,163,221,.08);border-color:rgba(28,163,221,.3);color:var(--zb-primary-deep)}.alert-error{background:#fdecec;border-color:#f5b5b5;color:var(--zb-danger)}.alert-success{background:#e5f6ed;border-color:#a3d9bc;color:var(--zb-success)}.alert-warn{background:rgba(201,162,75,.12);border-color:rgba(201,162,75,.35);color:#7d6428}.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--zb-bg-alt) 0,#fff 100%);padding:1.5rem}.login-card{width:100%;max-width:380px;background:#fff;border-radius:var(--radius-lg);border:1px solid var(--zb-border);box-shadow:var(--shadow-md);padding:1.75rem}.row{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap}.mt-sm{margin-top:.5rem}.mt-md{margin-top:1rem}.mt-lg{margin-top:1.5rem}.mb-sm{margin-bottom:.5rem}.mb-md{margin-bottom:1rem}.text-muted{color:var(--zb-text-muted)}.text-mono{font-family:var(--font-mono)}.text-right{text-align:right}.hidden{display:none}.spinner{display:inline-block;width:14px;height:14px;border:2px solid hsla(0,0%,100%,.4);border-top-color:#fff;border-radius:9999px;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.page-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;flex-wrap:wrap;margin-bottom:1rem}.page-title{font-size:1.375rem;font-weight:700;color:var(--zb-text);margin:0 0 .25rem}.login-brand{gap:.75rem;padding-bottom:.5rem;border-bottom:1px solid var(--zb-border)}.login-brand,.login-brand-logo{display:flex;align-items:center}.login-brand-logo{width:44px;height:44px;border-radius:var(--radius-md);background:linear-gradient(135deg,var(--zb-primary),var(--zb-primary-deep));color:#fff;font-weight:800;font-size:1.375rem;justify-content:center}.login-brand-name{font-size:1.125rem;font-weight:700;color:var(--zb-text)}.login-brand-sub{color:var(--zb-text-muted);font-size:.8125rem}.alert-ok{background:#e5f6ed;border-color:#a3d9bc;color:var(--zb-success)}.alert-error,.alert-ok{cursor:pointer}.form-grid-2{display:grid;grid-template-columns:1fr 1fr;grid-gap:0 1rem;gap:0 1rem}@media (max-width:640px){.form-grid-2{grid-template-columns:1fr}}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;padding:1rem;z-index:100}.modal{background:#fff;border-radius:var(--radius-lg);box-shadow:0 20px 40px rgba(15,23,42,.25);width:100%;max-width:560px;max-height:90vh;display:flex;flex-direction:column}.modal-header{padding:1rem 1.25rem;border-bottom:1px solid var(--zb-border)}.modal-title{margin:0;font-size:1.0625rem;font-weight:700;color:var(--zb-text)}.modal-body{padding:1rem 1.25rem;overflow-y:auto;flex:1 1 auto}.modal-footer{padding:.875rem 1.25rem;border-top:1px solid var(--zb-border);display:flex;justify-content:flex-end;gap:.5rem;background:var(--zb-bg);border-bottom-left-radius:var(--radius-lg);border-bottom-right-radius:var(--radius-lg)}.json-view{background:#0f172a;color:#cbd5e1;padding:.75rem 1rem;border-radius:var(--radius-md);font-family:var(--font-mono);font-size:.75rem;line-height:1.5;overflow-x:auto;margin:0;white-space:pre}.text-sm{font-size:.8125rem}.text-center{text-align:center}.alert-error,.alert-ok{cursor:pointer}@media (max-width:900px){.admin-shell{grid-template-columns:1fr}.admin-sidebar{display:flex;flex-direction:row;overflow-x:auto;padding:.75rem;gap:.25rem;border-right:none;border-bottom:1px solid var(--zb-border)}.admin-sidebar-brand{border-bottom:none;margin-bottom:0;padding:.375rem .5rem;flex-shrink:0}.admin-sidebar-footer{display:none}.admin-main{padding:1rem}}