:root{--bg:#f4f7fc;--sidebar-bg:#fff;--surface:#fff;--surface-hover:#f1f5f9;--border:#e2e8f0;--text:#0f172a;--text-muted:#64748b;--text-faint:#94a3b8;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-soft:#eff6ff;--primary-soft-border:#bfdbfe;--primary-contrast:#fff;--danger:#dc2626;--danger-hover:#b91c1c;--danger-soft:#fef2f2;--success:#16a34a;--success-soft:#f0fdf4;--accent-purple:#9333ea;--radius:10px;--shadow-sm:0 1px 2px #0f172a0f;--shadow-md:0 4px 16px #0f172a14}:root[data-theme=dark]{--bg:#0b1220;--sidebar-bg:#0f172a;--surface:#111c33;--surface-hover:#16213b;--border:#24304a;--text:#f1f5f9;--text-muted:#a3b0c7;--text-faint:#7c88a3;--primary:#4d8dff;--primary-hover:#6ba0ff;--primary-soft:#16213b;--primary-soft-border:#2a3c63;--primary-contrast:#fff;--danger:#f87171;--danger-hover:#fca5a5;--danger-soft:#2a1518;--success:#4ade80;--success-soft:#10261a;--accent-purple:#c4b5fd}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0b1220;--sidebar-bg:#0f172a;--surface:#111c33;--surface-hover:#16213b;--border:#24304a;--text:#f1f5f9;--text-muted:#a3b0c7;--text-faint:#7c88a3;--primary:#4d8dff;--primary-hover:#6ba0ff;--primary-soft:#16213b;--primary-soft-border:#2a3c63;--danger:#f87171;--danger-hover:#fca5a5;--danger-soft:#2a1518;--success:#4ade80;--success-soft:#10261a;--accent-purple:#c4b5fd}}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit;font-size:inherit}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px}.app-shell{height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--sidebar-bg);border-right:1px solid var(--border);flex-direction:column;flex-shrink:0;width:260px;padding:20px 12px;display:flex;overflow-y:hidden}.sidebar-brand{color:var(--primary);letter-spacing:-.02em;padding:8px 12px 20px;font-size:20px;font-weight:700}.sidebar-nav{flex-direction:column;gap:4px;display:flex;overflow-y:auto}.sidebar-group{flex-direction:column;gap:2px;margin-bottom:10px;display:flex}.sidebar-group-label{text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);padding:10px 12px 4px;font-size:11px;font-weight:700}.sidebar-link{border-radius:var(--radius);color:var(--text-muted);align-items:center;gap:10px;padding:10px 12px;font-size:14px;font-weight:500;transition:background .12s,color .12s;display:flex}.sidebar-link:hover{background:var(--surface-hover);color:var(--text)}.sidebar-link.active{background:var(--primary-soft);color:var(--primary)}.main-column{flex-direction:column;flex:1;min-width:0;display:flex}.topbar{border-bottom:1px solid var(--border);background:var(--surface);flex-shrink:0;justify-content:space-between;align-items:center;height:60px;padding:0 24px;display:flex}.topbar-actions{align-items:center;gap:14px;display:flex}.topbar-user{color:var(--text-muted);font-size:14px;font-weight:500}.icon-btn{border:1px solid var(--border);background:var(--surface);width:34px;height:34px;color:var(--text-muted);cursor:pointer;border-radius:8px;justify-content:center;align-items:center;display:inline-flex}.icon-btn:hover{background:var(--surface-hover);color:var(--text)}.content{flex:1;padding:24px;overflow-y:auto}.page-loading{height:100vh;color:var(--text-muted);justify-content:center;align-items:center;display:flex}.page-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.page-header h1{color:var(--text);margin:0;font-size:22px}.page-header p{color:var(--text-muted);margin:4px 0 0;font-size:14px}.card{background:var(--surface);border:1px solid 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14px;font-size:14px;font-weight:600;display:inline-flex}.btn-primary{background:var(--primary);color:var(--primary-contrast)}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--surface);color:var(--text);border-color:var(--border)}.btn-secondary:hover{background:var(--surface-hover)}.btn-danger{background:var(--danger-soft);color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}table.data-table{border-collapse:collapse;width:100%;font-size:14px}.data-table th{text-align:left;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border-bottom:1px solid var(--border);padding:10px 14px;font-size:12px}.data-table td{border-bottom:1px solid var(--border);color:var(--text);padding:12px 14px}.data-table tbody tr:hover{background:var(--surface-hover)}.badge{border-radius:999px;align-items:center;padding:3px 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64px);padding:24px;overflow-y:auto}.modal h2{margin:0 0 18px;font-size:18px}.modal-actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}