:root{--primary: #2563eb;--primary-dark: #1d4ed8;--secondary: #64748b;--accent: #f59e0b;--background: #f8fafc;--surface: #ffffff;--text: #0f172a;--text-light: #64748b;--error: #ef4444;--success: #22c55e;--border: #e2e8f0;--radius: 12px;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--sidebar-width: 260px}[data-theme=dark]{--background: #0f172a;--surface: #1e293b;--text: #f8fafc;--text-light: #94a3b8;--border: #334155;--shadow: 0 4px 6px -1px rgb(0 0 0 / .3)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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var(--border);display:flex;flex-direction:column;padding:1.5rem;position:sticky;top:0;height:100vh}.logo{font-size:1.5rem;font-weight:800;color:var(--primary);margin-bottom:2.5rem;display:flex;align-items:center;gap:.5rem}.nav-list{display:flex;flex-direction:column;gap:.5rem}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius);color:var(--text-light);transition:all .2s}.nav-item:hover{background-color:var(--background);color:var(--primary)}.nav-item.active{background-color:var(--primary);color:#fff}.main-content{flex:1;padding:2rem;overflow-y:auto}.header{margin-bottom:2rem;display:flex;align-items:center;gap:2rem}.header h1{margin-right:1rem}.header-actions{display:flex;flex:1;justify-content:space-between;align-items:center}.filter-bar{display:flex;gap:1rem;align-items:center;margin-left:3rem}.search-container{display:flex;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:0 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