:root{--bg:#f4f6f9;--paper:#fff;--ink:#1c2434;--ink-soft:#64748b;--brand:#3a5ae0;--brand-dark:#2c45b8;--danger:#dc4c4c;--danger-bg:#fdeded;--success:#1e9e6b;--success-bg:#e8f7f1;--warn:#c68a1e;--warn-bg:#fbf1de;--line:#e4e8ef;--radius-lg:14px;--radius-md:10px;--radius-sm:7px;--shadow:0 4px 16px rgba(28,36,52,.06);--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}#root,body,html{height:100%}body{background:var(--bg);font-family:var(--font);font-size:14px}body,h1,h2,h3,h4{margin:0;color:var(--ink)}h1,h2,h3,h4{font-weight:700}a{color:var(--brand);text-decoration:none}button{font-family:var(--font);cursor:pointer}.app-shell{min-height:100%;display:flex}.sidebar{width:220px;flex-shrink:0;background:#171e2e;color:#c4cbda;padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar .brand{color:#fff;font-weight:800;font-size:16px;padding:8px 10px 20px;display:flex;align-items:center;gap:8px}.sidebar .brand .dot{width:9px;height:9px;border-radius:50%;background:var(--brand)}.sidebar a,.sidebar button.linklike{display:block;padding:9px 12px;border-radius:var(--radius-sm);color:#c4cbda;font-size:13.5px;font-weight:600;background:none;border:none;text-align:start;width:100%}.sidebar a.active,.sidebar a:hover{background:hsla(0,0%,100%,.08);color:#fff}.sidebar .logout{margin-top:auto;color:#8891a5}.sidebar .logout:hover{color:#fff}.main-area{flex:1 1;min-width:0}.topbar{background:var(--paper);border-bottom:1px solid var(--line);padding:14px 28px}.page{padding:28px;max-width:1200px}.page-header{margin-bottom:20px}.page-header p{color:var(--ink-soft);margin-top:4px;font-size:13.5px}.card{background:var(--paper);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:24px;border:1px solid var(--line)}.center-wrap{min-height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,#171e2e,#2c3a5c);padding:24px}.login-card{background:var(--paper);border-radius:var(--radius-lg);padding:36px;width:100%;max-width:380px;box-shadow:0 20px 60px rgba(0,0,0,.35)}.login-card h2{text-align:center;margin-bottom:6px}.login-card p.sub{text-align:center;color:var(--ink-soft);font-size:13px;margin-bottom:24px}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field label{font-size:12.5px;color:var(--ink-soft);font-weight:600}.field input,.field select,.field textarea{border:1.5px solid var(--line);border-radius:var(--radius-sm);padding:9px 12px;font-size:14px;font-family:var(--font);background:#fbfcfe;color:var(--ink);outline:none;transition:border-color .15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand)}.grid{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:14px;gap:14px}.grid.cols-3{grid-template-columns:repeat(3,1fr)}@media (max-width:720px){.grid,.grid.cols-3{grid-template-columns:1fr}}.btn{display:inline-flex;align-items:center;gap:8px;border-radius:var(--radius-sm);padding:9px 18px;font-size:13.5px;font-weight:700;border:none;transition:all .12s ease}.btn:active{transform:scale(.97)}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark)}.btn-secondary{background:#fff;color:var(--ink);border:1.5px solid var(--line)}.btn-secondary:hover{border-color:var(--brand);color:var(--brand)}.btn-danger{background:#fff;color:var(--danger);border:1.5px solid #f4cfcf}.btn-danger:hover{background:var(--danger);color:#fff}.btn-sm{padding:6px 12px;font-size:12.5px}.btn:disabled{opacity:.5;cursor:not-allowed}.actions-row{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}.error-banner{background:var(--danger-bg);border:1px solid #f4cfcf;color:#93302f;border-radius:var(--radius-md)}.error-banner,.success-banner{padding:11px 14px;font-size:13.5px;margin-bottom:14px}.success-banner{background:var(--success-bg);border:1px solid #b9e5d2;color:#146848;border-radius:var(--radius-md)}.toolbar{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px}.toolbar,.toolbar .filters{display:flex;flex-wrap:wrap}.toolbar .filters{gap:10px}.toolbar input,.toolbar select{padding:8px 12px;border-radius:var(--radius-sm);border:1.5px solid var(--line);font-family:var(--font);font-size:13.5px}table.data-table{width:100%;border-collapse:collapse;background:var(--paper);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow)}table.data-table th{text-align:start;background:#f8f9fc;color:var(--ink-soft);font-size:11.5px;text-transform:uppercase;letter-spacing:.4px;font-weight:700}table.data-table td,table.data-table th{padding:11px 14px;border-bottom:1px solid var(--line)}table.data-table td{font-size:13.5px;vertical-align:middle}table.data-table tr:last-child td{border-bottom:none}table.data-table tr:hover{background:#fafbfd}.row-actions{display:flex;gap:6px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:700}.badge-success{background:var(--success-bg);color:var(--success)}.badge-danger{background:var(--danger-bg);color:var(--danger)}.badge-warn{background:var(--warn-bg);color:var(--warn)}.stat-pills{display:flex;gap:10px;margin-bottom:18px;flex-wrap:wrap}.stat-pill{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-md);padding:10px 16px;font-size:12.5px;color:var(--ink-soft)}.stat-pill b{color:var(--ink);font-size:16px;display:block}.modal-overlay{position:fixed;inset:0;background:rgba(23,30,46,.5);display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto;z-index:50}.modal-box{background:var(--paper);border-radius:var(--radius-lg);max-width:640px;width:100%;padding:26px;box-shadow:0 20px 50px rgba(0,0,0,.3)}.modal-box h3{margin-bottom:18px}.modal-close{float:inline-end;background:none;border:none;font-size:20px;color:var(--ink-soft)}.credential-box{background:#fff8e8;border:2px dashed var(--warn);border-radius:var(--radius-md);padding:16px;text-align:center;margin:14px 0}.credential-box .code{font-size:20px;font-weight:800;letter-spacing:1px;font-family:monospace}.empty-state{text-align:center;padding:50px 20px;color:var(--ink-soft)}.spinner{display:inline-block;width:14px;height:14px;border:2px solid hsla(0,0%,100%,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.hint{color:var(--ink-soft);font-size:13px}