:root{--bg-color:#f4f6f8;--sidebar-bg:#1e293b;--sidebar-text:#94a3b8;--sidebar-hover:#334155;--sidebar-active:#fff;--card-bg:#fff;--text-dark:#1e293b;--text-light:#64748b;--border-color:#e2e8f0;--primary:#3b82f6;--primary-hover:#2563eb;--danger:#ef4444;--success:#10b981;--warning:#f59e0b;--radius:8px;--shadow:0 1px 3px 0 #0000001a, 0 1px 2px 0 #0000000f}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-dark);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:inherit;text-decoration:none}button{cursor:pointer;background:0 0;border:none}.btn{border-radius:var(--radius);justify-content:center;align-items:center;gap:8px;padding:8px 16px;font-size:.875rem;font-weight:500;transition:all .2s;display:inline-flex}.btn-primary{background-color:var(--primary);color:#fff}.btn-primary:hover{background-color:var(--primary-hover)}.btn-danger{background-color:var(--danger);color:#fff}.btn-danger:hover{filter:brightness(1.1)}.app-layout{min-height:100vh;display:flex}.sidebar{background-color:var(--sidebar-bg);width:250px;color:var(--sidebar-text);flex-direction:column;display:flex}.sidebar-header{color:#fff;border-bottom:1px solid var(--sidebar-hover);padding:24px;font-size:1.25rem;font-weight:700}.sidebar-nav{flex-direction:column;flex-grow:1;gap:4px;padding:16px 0;display:flex}.nav-item{align-items:center;gap:12px;padding:12px 24px;transition:all .2s;display:flex}.nav-item:hover{background-color:var(--sidebar-hover);color:#fff}.nav-item.active{background-color:var(--sidebar-hover);color:var(--sidebar-active);border-left:4px solid var(--primary)}.main-content{flex-direction:column;flex-grow:1;display:flex;overflow:hidden}.header{background-color:var(--card-bg);border-bottom:1px solid var(--border-color);justify-content:flex-end;align-items:center;height:64px;padding:0 24px;display:flex}.content{background-color:var(--bg-color);flex-grow:1;padding:24px;overflow-y:auto}.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.form-group{margin-bottom:16px}.form-group label{margin-bottom:8px;font-size:.875rem;font-weight:500;display:block}.form-control{border:1px solid var(--border-color);border-radius:6px;width:100%;padding:10px 12px;font-family:inherit;font-size:.875rem}.form-control:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 2px #3b82f633}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border-color);padding:12px 16px;font-size:.875rem}th{color:var(--text-light);background:#f8fafc;font-weight:600}tr:hover{background-color:#f8fafc}.badge{border-radius:9999px;padding:4px 8px;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{color:#065f46;background:#d1fae5}.badge-warning{color:#92400e;background:#fef3c7}.badge-danger{color:#991b1b;background:#fee2e2}