:root{--color-bg:#f6f7f9;--color-surface:#fff;--color-text:#17202a;--color-text-muted:#6b7280;--color-border:#e5e7eb;--color-primary:#111827;--color-primary-hover:#1f2937;--color-accent:#4f46e5;--color-accent-bg:#eef2ff;--color-success:#16a34a;--color-success-bg:#dcfce7;--color-warning:#b45309;--color-warning-bg:#fef3c7;--color-danger:#dc2626;--color-danger-bg:#fee2e2;--color-neutral-bg:#f3f4f6;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--radius-sm:8px;--radius-md:10px;--radius-lg:16px;--radius-full:999px;--shadow-sm:0 1px 2px #0f172a0f;--shadow-md:0 8px 24px #0f172a1f;--font-sans:Inter, ui-sans-serif, system-ui;font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text)}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}.shell{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--color-primary);color:#fff;padding:var(--space-5);z-index:20;height:100vh;position:sticky;top:0;overflow-y:auto}.brand{margin-bottom:var(--space-6);font-size:20px;font-weight:800}.nav a{border-radius:var(--radius-md);color:#d1d5db;margin:4px 0;padding:10px 12px;transition:background .15s,color .15s;display:block}.nav a:hover,.nav a.active{background:var(--color-primary-hover);color:#fff}.main{padding:var(--space-6);max-width:1280px}.top{margin-bottom:var(--space-5);justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.top h1{margin:0 0 4px;font-size:24px}.btn.menu-toggle{display:none}@media (max-width:800px){.shell{grid-template-columns:1fr}.sidebar{height:100vh;display:none;position:fixed;inset:0 20% 0 0;overflow-y:auto}.sidebar.open{display:block}.grid{grid-template-columns:1fr}.main{padding:var(--space-4)}.btn.menu-toggle{display:inline-flex}}.grid{gap:var(--space-4);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:18px}.kpi{font-size:30px;font-weight:800}.muted{color:var(--color-text-muted)}.btn{border-radius:var(--radius-md);background:var(--color-primary);color:#fff;cursor:pointer;align-items:center;gap:var(--space-2);border:0;padding:10px 16px;font-size:14px;font-weight:600;transition:background .15s,opacity .15s;display:inline-flex}.btn:hover:not(:disabled){background:var(--color-primary-hover)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--color-neutral-bg);color:var(--color-text)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn-danger{background:var(--color-danger);color:#fff}.btn-danger:hover:not(:disabled){background:#b91c1c}.btn-ghost{color:var(--color-text);background:0 0}.btn-ghost:hover:not(:disabled){background:var(--color-neutral-bg)}.btn-sm{padding:6px 12px;font-size:13px}input,select,textarea{border-radius:var(--radius-md);background:#fff;border:1px solid #d1d5db;width:100%;padding:10px;font-family:inherit;font-size:14px}input:focus,select:focus,textarea:focus{outline:2px solid var(--color-accent);outline-offset:1px}label{margin:var(--space-3) 0 6px;font-size:13px;font-weight:600;display:block}table{border-collapse:collapse;background:var(--color-surface);border-radius:var(--radius-lg);width:100%;box-shadow:var(--shadow-sm);overflow:hidden}th,td{text-align:left;border-bottom:1px solid #eee;padding:12px}th{text-transform:uppercase;letter-spacing:.03em;color:var(--color-text-muted);font-size:12px}tbody tr:hover{background:#fafafa}tbody tr:last-child td{border-bottom:none}.badge{border-radius:var(--radius-full);background:var(--color-accent-bg);color:var(--color-accent);align-items:center;padding:4px 10px;font-size:12px;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-danger{background:var(--color-danger-bg);color:var(--color-danger)}.badge-neutral{background:var(--color-neutral-bg);color:var(--color-text-muted)}.empty-state{text-align:center;padding:var(--space-6) var(--space-4);color:var(--color-text-muted)}.empty-state .empty-title{color:var(--color-text);margin-bottom:var(--space-2);font-weight:700}.spinner{border:2px solid #ffffff59;border-top-color:currentColor;border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin;display:inline-block}.btn-secondary .spinner,.btn-ghost .spinner{border-color:currentColor #00000026 #00000026}@keyframes spin{to{transform:rotate(360deg)}}.alert{border-radius:var(--radius-md);margin-bottom:var(--space-4);padding:12px 14px;font-size:14px}.alert-error{background:var(--color-danger-bg);color:var(--color-danger)}.alert-success{background:var(--color-success-bg);color:var(--color-success)}.toast-stack{bottom:var(--space-5);right:var(--space-5);z-index:100;gap:var(--space-2);flex-direction:column;max-width:340px;display:flex;position:fixed}.toast{background:var(--color-primary);color:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:12px 16px;font-size:14px}.toast-success{background:var(--color-success)}.toast-error{background:var(--color-danger)}.modal-overlay{z-index:90;padding:var(--space-4);background:#0f172a73;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-5);width:100%;max-width:420px;box-shadow:var(--shadow-md)}.modal h2{margin-top:0;font-size:18px}.modal-actions{justify-content:flex-end;gap:var(--space-2);margin-top:var(--space-5);display:flex}.page-header{margin-bottom:var(--space-5)}.page-header .actions{gap:var(--space-2);display:flex}