:root{--c-bg:#f9fafb;--c-surface:#fff;--c-border:#e5e7eb;--c-border-subtle:#f3f4f6;--c-text-main:#111827;--c-text-secondary:#4b5563;--c-text-muted:#9ca3af;--c-primary:#2563eb;--c-primary-hover:#1d4ed8;--c-primary-subtle:#eff6ff;--c-success:#10b981;--c-success-bg:#ecfdf5;--c-danger:#ef4444;--c-danger-bg:#fef2f2;--c-warning:#f59e0b;--c-warning-bg:#fffbeb;--f-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--sidebar-width:260px;--topbar-height:64px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--f-sans);background:var(--c-bg);color:var(--c-text-main);-webkit-font-smoothing:antialiased}.admin-layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--c-surface);border-right:1px solid var(--c-border);z-index:100;flex-direction:column;height:100vh;display:flex;position:fixed}.main-wrapper{margin-left:var(--sidebar-width);flex-direction:column;flex:1;display:flex}.topbar{height:var(--topbar-height);background:var(--c-surface);border-bottom:1px solid var(--c-border);z-index:90;justify-content:space-between;align-items:center;padding:0 2rem;display:flex;position:sticky;top:0}.content-area{width:100%;max-width:1400px;margin:0 auto;padding:2rem}.card{background:var(--c-surface);border:1px solid var(--c-border);box-shadow:var(--shadow-sm);border-radius:12px;padding:1.5rem}.stat-grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.stat-card{flex-direction:column;gap:.5rem;display:flex}.stat-label{color:var(--c-text-secondary);font-size:.875rem;font-weight:500}.stat-value{color:var(--c-text-main);letter-spacing:-.02em;font-size:1.875rem;font-weight:700}.stat-trend{align-items:center;gap:.25rem;font-size:.75rem;font-weight:600;display:flex}.data-table-wrapper{border:1px solid var(--c-border);background:var(--c-surface);border-radius:12px;width:100%;overflow-x:auto}.data-table{border-collapse:collapse;text-align:left;width:100%}.data-table th{background:var(--c-bg);color:var(--c-text-secondary);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--c-border);padding:.75rem 1rem;font-size:.75rem;font-weight:600}.data-table td{color:var(--c-text-main);border-bottom:1px solid var(--c-border-subtle);padding:1rem;font-size:.875rem}.data-table tr:last-child td{border-bottom:none}.data-table tr:hover td{background:var(--c-bg)}.badge{border-radius:9999px;align-items:center;padding:.25rem .625rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{background:var(--c-success-bg);color:var(--c-success)}.badge-danger{background:var(--c-danger-bg);color:var(--c-danger)}.badge-warning{background:var(--c-warning-bg);color:var(--c-warning)}.btn{cursor:pointer;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:600;transition:all .2s;display:inline-flex}.btn-primary{background:var(--c-primary);color:#fff}.btn-primary:hover{background:var(--c-primary-hover)}.btn-secondary{border-color:var(--c-border);color:var(--c-text-main);background:#fff}.btn-secondary:hover{background:var(--c-bg)}.nav-link{color:var(--c-text-secondary);border-radius:8px;align-items:center;gap:.75rem;margin:.25rem 1rem;padding:.75rem 1rem;font-size:.875rem;font-weight:500;text-decoration:none;transition:all .2s;display:flex}.nav-link:hover{background:var(--c-border-subtle);color:var(--c-text-main)}.nav-link.active{background:var(--c-primary-subtle);color:var(--c-primary)}.text-truncate{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}