:root,[data-theme=light]{--bg: #f8fafc;--card-bg: #ffffff;--bg-soft: #f1f5f9;--border: #e2e8f0;--text-primary: #333333;--text-secondary: #666666;--text-muted: #999999;--accent: #1976d2;--shadow-card: 0 2px 8px rgba(0, 0, 0, .08)}[data-theme=dark]{--bg: #0f172a;--card-bg: #1e293b;--bg-soft: #334155;--border: #334155;--text-primary: #e2e8f0;--text-secondary: #94a3b8;--text-muted: #64748b;--accent: #60a5fa;--shadow-card: 0 2px 8px rgba(0, 0, 0, .35)}[data-theme=dark] body{background:var(--bg);color:var(--text-primary)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text-primary)}.app{min-height:100vh;background:var(--bg)}.topbar{display:flex;align-items:center;justify-content:space-between;height:56px;padding:0 16px;background:linear-gradient(120deg,#16243d,#1f3a5f);color:#fff;position:sticky;top:0;z-index:30}.brand{font-weight:700;font-size:16px;letter-spacing:-.2px}.top-actions{display:flex;gap:8px}.icon-btn{background:#ffffff1f;border:none;color:#fff;width:38px;height:38px;border-radius:9px;font-size:17px;cursor:pointer;transition:background .15s}.icon-btn:hover{background:#ffffff38}.layout{display:flex;min-height:calc(100vh - 56px);position:relative}.backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0f172a66;z-index:40}.main{flex:1;padding:18px;width:100%;transition:margin-left .25s ease}@media (min-width: 900px){.layout.nav-open .main{margin-left:230px}}.sidebar{position:fixed;top:56px;left:0;width:230px;height:calc(100vh - 56px);background:var(--bg-card);border-right:1px solid var(--border);transform:translate(-100%);transition:transform .25s ease;z-index:45;display:flex;flex-direction:column}.sidebar.open{transform:translate(0)}@media (min-width: 900px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}}.sidebar-head{padding:12px 12px 6px}.home{width:100%;text-align:left;background:var(--bg-soft);border:1px solid var(--border);color:var(--text-primary);font-weight:600;padding:10px 12px;border-radius:10px;cursor:pointer}.nav{display:flex;flex-direction:column;padding:8px;gap:2px;flex:1;overflow-y:auto;scrollbar-width:thin}.nav::-webkit-scrollbar{width:5px}.nav::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}.nav-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;color:var(--text-secondary);text-decoration:none;font-size:13px;font-weight:500;cursor:pointer;transition:background .12s,color .12s}.nav-item:hover{background:var(--bg-soft);color:var(--text-primary)}.nav-item.active{background:#eaf1fb;color:#1f3a5f;font-weight:700}html[data-theme=dark] .nav-item.active{background:#3b82f626;color:#60a5fa}.nav-icon{font-size:17px;width:22px;text-align:center}.nav-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-foot{padding:8px 12px 16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.user-info{font-size:11px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-outline{padding:7px 12px;border:1px solid var(--border);border-radius:8px;background:var(--card-bg);color:var(--text-secondary);font-size:12px;font-weight:600;cursor:pointer;transition:all .12s}.btn-outline:hover{border-color:#2563eb;color:#2563eb}.btn-switch{padding:7px 12px;border:1px dashed var(--border);border-radius:8px;background:var(--bg-soft);color:var(--text-secondary);font-size:12px;cursor:pointer;transition:all .12s}.btn-switch:hover{border-color:#2563eb;color:#2563eb}.fullscreen{min-height:100vh;display:flex;flex-direction:column}.card{background:var(--card-bg);border-radius:10px;padding:20px;box-shadow:var(--shadow-card);border:1px solid var(--border)}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border:none;border-radius:8px;font-size:14px;cursor:pointer;transition:.15s;text-decoration:none}.btn-primary{background:#1565c0;color:#fff}.btn-primary:hover{background:#0d47a1}.btn-secondary{background:var(--bg-soft);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-success{background:#2e7d32;color:#fff}.btn-success:hover{background:#1b5e20}input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;outline:none;background:var(--card-bg);color:var(--text-primary)}input:focus,select:focus,textarea:focus{border-color:#1565c0}label{display:block;margin-bottom:4px;font-size:13px;color:var(--text-secondary);font-weight:500}.form-group{margin-bottom:16px}.page-title{font-size:22px;font-weight:700;margin-bottom:20px}.text-center{text-align:center}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}@media (max-width:700px){.grid-2{grid-template-columns:1fr}}