:root{
 --bg:#f5f7fb;--surface:#fff;--surface2:#f8fafc;--text:#0f172a;--muted:#64748b;
 --primary:#4f46e5;--primary2:#7c3aed;--success:#059669;--danger:#dc2626;--warning:#d97706;
 --border:#e2e8f0;--shadow:0 12px 35px rgba(15,23,42,.08);--radius:18px
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);
font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}
.app-shell{display:flex;min-height:100vh}.sidebar{width:250px;background:#0b1020;color:#cbd5e1;position:fixed;inset:0 auto 0 0;padding:22px 14px;z-index:20}
.brand{display:flex;gap:11px;align-items:center;color:#fff;font-weight:800;font-size:18px;padding:8px 10px 24px}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary2));display:grid;place-items:center;color:#fff;font-weight:900}
.nav-title{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#64748b;padding:15px 10px 7px}
.nav a{display:flex;gap:10px;align-items:center;padding:11px 12px;border-radius:11px;margin:3px 0;color:#cbd5e1}
.nav a:hover,.nav a.active{background:rgba(255,255,255,.09);color:#fff}
.main{margin-left:250px;width:calc(100% - 250px);padding:28px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
.page-title{font-size:26px;font-weight:800;margin:0}.muted{color:var(--muted)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:20px}.stat .label{color:var(--muted);font-size:13px}.stat .value{font-size:28px;font-weight:850;margin-top:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:11px;padding:10px 15px;cursor:pointer;font-weight:700}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2));color:#fff}.btn-light{background:#fff;border:1px solid var(--border);color:var(--text)}
.btn-success{background:var(--success);color:#fff}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:7px 10px;font-size:13px}
input,select,textarea{width:100%;background:#fff;border:1px solid var(--border);border-radius:11px;padding:11px 12px;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(79,70,229,.1)}
label{font-size:13px;font-weight:700;display:block;margin:0 0 7px}.form-row{display:grid;gap:15px;grid-template-columns:repeat(2,minmax(0,1fr))}
table{width:100%;border-collapse:collapse}th,td{padding:13px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:13px}th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--surface2)}
.badge{display:inline-flex;padding:4px 9px;border-radius:999px;font-size:11px;font-weight:800}.badge-success{background:#dcfce7;color:#166534}.badge-danger{background:#fee2e2;color:#991b1b}.badge-warning{background:#fef3c7;color:#92400e}.badge-info{background:#e0e7ff;color:#3730a3}
.alert{padding:12px 14px;border-radius:12px;margin:12px 0}.alert-success{background:#ecfdf5;color:#065f46}.alert-danger{background:#fef2f2;color:#991b1b}
.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:16px}
.actions{display:flex;gap:8px;flex-wrap:wrap}.empty{text-align:center;color:var(--muted);padding:35px}
@media(max-width:900px){.sidebar{transform:translateX(-100%)}.main{margin-left:0;width:100%;padding:18px}.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:12px;flex-direction:column}}