:root{--primary-color: #2563eb;--bg-color: #f8fafc;--card-bg: #ffffff;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--danger-color: #ef4444;--header-bg: #ffffff}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background-color:var(--bg-color);color:var(--text-primary);-webkit-font-smoothing:antialiased}.app-header{background:var(--header-bg);padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border-color);margin-bottom:2rem}.brand{display:flex;align-items:center;gap:.75rem;font-weight:700;font-size:1.1rem}.brand-icon{color:var(--primary-color);font-size:1.5rem}.header-actions{display:flex;gap:1rem}.icon-btn{background:#f1f5f9;border:none;width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-primary)}.user-avatar{width:40px;height:40px;background:#e2e8f0;border-radius:50%;border:2px solid #cbd5e1}.container{max-width:1200px;margin:0 auto;padding:0 2rem 2rem}.page-title{margin-bottom:2rem}.page-title h1{font-size:2rem;font-weight:700;margin:0 0 .5rem;color:#0f172a}.page-title p{color:var(--text-secondary);margin:0}.control-panel{background:var(--card-bg);padding:2rem;border-radius:1rem;border:1px solid var(--border-color);margin-bottom:3rem}.form-grid{display:grid;grid-template-columns:1fr 1fr 1.5fr auto;gap:1.5rem;align-items:end}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:.875rem;font-weight:500;color:var(--text-primary)}.form-control{padding:.75rem 1rem;border:1px solid var(--border-color);border-radius:.5rem;font-size:1rem;background:#f8fafc;color:var(--text-primary);outline:none;transition:all .2s}.form-control:focus{border-color:var(--primary-color);background:#fff;box-shadow:0 0 0 3px #2563eb1a}.btn-primary{background:var(--primary-color);color:#fff;border:none;padding:.75rem 2rem;border-radius:.5rem;font-weight:600;cursor:pointer;transition:background .2s;height:46px}.btn-primary:hover{background:#1d4ed8}.section-title{font-size:1.25rem;font-weight:700;margin-bottom:1.5rem;color:#0f172a}.data-table{width:100%;border-collapse:collapse;background:var(--card-bg);border-radius:1rem;overflow:hidden;border:1px solid var(--border-color)}.data-table th{text-align:left;padding:1rem 2rem;font-weight:500;color:var(--text-secondary);border-bottom:1px solid var(--border-color);font-size:.875rem}.data-table td{padding:1.25rem 2rem;border-bottom:1px solid var(--border-color);color:var(--text-primary);font-size:.95rem}.data-table tr:last-child td{border-bottom:none}.header-nav{display:flex;gap:1rem}.nav-link{background:none;border:none;font-size:1rem;font-weight:500;color:var(--text-secondary);cursor:pointer;padding:.5rem 1rem;border-radius:.5rem;transition:all .2s}.nav-link:hover{background:#f1f5f9;color:var(--primary-color)}.nav-link.active{background:#eff6ff;color:var(--primary-color);font-weight:600}.panel-title{font-size:1.1rem;font-weight:700;margin:0 0 1.5rem;color:#0f172a}.tabs{display:flex;gap:2rem;border-bottom:1px solid var(--border-color);margin-bottom:1.5rem;overflow-x:auto}.tab-btn{background:none;border:none;padding:.75rem 0;font-size:.95rem;color:var(--text-secondary);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap}.tab-btn:hover{color:var(--primary-color)}.tab-btn.active{color:var(--primary-color);border-bottom-color:var(--primary-color);font-weight:600}.btn-outline{background:#fff;border:1px solid var(--border-color);padding:.5rem 1rem;border-radius:.5rem;color:var(--text-primary);font-weight:500;cursor:pointer;transition:all .2s}.btn-outline:hover{background:#f8fafc;border-color:#cbd5e1}