:root{--primary:#0ea5e9;--primary-dark:#0369a1;--secondary:#64748b;--accent:#22d3ee;--background:#f8fafc;--surface:#fff;--text-main:#0f172a;--text-muted:#64748b;--border:#e2e8f0;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--radius:8px;--shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background-color:var(--background);color:var(--text-main);line-height:1.5}.app-container{display:flex;min-height:100vh}.sidebar{width:260px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:1.5rem;position:-webkit-sticky;position:sticky;top:0;height:100vh;overflow-y:auto}.logo{font-size:1.5rem;font-weight:700;color:var(--primary);margin-bottom:2.5rem;align-items:center}.logo,.nav-links{display:flex;gap:.5rem}.nav-links{flex-direction:column}.nav-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 1rem;border-radius:var(--radius);text-decoration:none;color:var(--text-muted);transition:all .2s ease;cursor:pointer}.nav-item.active,.nav-item:hover{background:#f1f5f9;color:var(--primary)}.main-content{flex:1 1;padding:2rem;overflow-y:auto}.header{margin-bottom:2rem;display:flex;justify-content:space-between;align-items:center;padding-right:4rem}.card{background:var(--surface);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);border:1px solid var(--border)}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.btn-primary{padding:.75rem 1.5rem;background-color:var(--primary);color:#fff;border:none;border-radius:var(--radius);cursor:pointer;font-weight:600;transition:background-color .2s;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:inherit;font-size:.95rem}.btn-primary:hover{background-color:var(--primary-dark)}.btn-primary:active{transform:translateY(1px)}@media (max-width:768px){.app-container{flex-direction:column}.sidebar{position:fixed;top:0;left:-100%;height:100vh;z-index:50;transition:left .3s ease}.sidebar.open{left:0;box-shadow:4px 0 10px rgba(0,0,0,.1)}.main-content{padding:5rem 1rem 1rem}.header{flex-direction:column;align-items:flex-start;gap:1rem;padding-right:0}.card{padding:1rem}}.mobile-top-bar{display:none;align-items:center;justify-content:space-between;padding:1rem 1.5rem;background:var(--surface);border-bottom:1px solid var(--border);position:fixed;top:0;left:0;right:0;z-index:40;height:64px}@media (max-width:768px){.mobile-top-bar{display:flex}}.sidebar-overlay{display:none}@media (max-width:768px){.sidebar-overlay{display:block;position:fixed;inset:0;background-color:rgba(0,0,0,.5);z-index:45}}.table-responsive{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}.user-menu-wrapper{position:fixed;top:1.5rem;right:1.5rem;z-index:100}@media (max-width:768px){.user-menu-wrapper{top:.75rem;right:4.5rem}}