:root{--bg-page: #f5f6f8;--bg-card: #fff;--border: #e2e4e8;--text: #1a1d21;--text-muted: #5c6370;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--danger-hover: #b91c1c;--sidebar-bg: #1e293b;--sidebar-text: #e2e8f0;--sidebar-text-muted: #94a3b8;--radius: 6px;--shadow: 0 1px 3px rgba(0, 0, 0, .06)}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:14px;line-height:1.5;color:var(--text);background:var(--bg-page)}#root{min-height:100vh}.app-loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-muted)}.layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--sidebar-bg);color:var(--sidebar-text);flex-shrink:0}.sidebar-nav{list-style:none;margin:0;padding:1rem 0}.sidebar-nav a{display:block;padding:.5rem 1rem;color:var(--sidebar-text);text-decoration:none;border-left:3px solid transparent}.sidebar-nav a:hover{background:#ffffff0f}.sidebar-nav a.active{background:#ffffff14;border-left-color:var(--primary);font-weight:500}.sidebar-brand{padding:1rem;font-weight:600;color:var(--sidebar-text);border-bottom:1px solid rgba(255,255,255,.08)}.main{flex:1;padding:1.5rem;overflow:auto}.page-title{margin:0 0 1rem;font-size:1.25rem;font-weight:600}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1rem 1.25rem;margin-bottom:1rem}.table-wrap{overflow-x:auto}table.data-table{width:100%;border-collapse:collapse}table.data-table th,table.data-table td{padding:.5rem .75rem;text-align:left;border-bottom:1px solid var(--border)}table.data-table th{font-weight:600;color:var(--text-muted);font-size:.8125rem}table.data-table tr:hover td{background:#f8f9fa}input[type=text],input[type=email],input[type=password],input[type=search],select,textarea{font:inherit;padding:.5rem .75rem;border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:320px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #2563eb33}label{display:block;margin-bottom:.25rem;font-weight:500;color:var(--text)}.form-group{margin-bottom:1rem}.activity-filters{display:flex;flex-wrap:wrap;align-items:flex-end;gap:1rem}.activity-filters .form-group{margin-bottom:0}.activity-filters__search{margin-bottom:0;min-width:320px}.activity-filters__search input{max-width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;font:inherit;font-weight:500;border:none;border-radius:var(--radius);cursor:pointer;text-decoration:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-secondary{background:var(--bg-page);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:#e9ecef}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn:disabled{opacity:.6;cursor:not-allowed}.muted{color:var(--text-muted);font-size:.875rem}.text-danger{color:var(--danger)}.link{color:var(--primary);text-decoration:none}.link:hover{text-decoration:underline}.flex{display:flex;gap:.5rem;flex-wrap:wrap}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mt-2{margin-top:1rem}.privileged-action{border-left:3px solid var(--danger);padding-left:.75rem;margin-top:.5rem}