:root{--ucla-blue: #2774AE;--ucla-blue-dark: #1e5f8f;--ucla-blue-darker: #003B5C;--ucla-gold: #FFD100;--ucla-gold-soft: #FFF0B3;--ucla-gold-dim: #C6A300;--bg-primary: #ffffff;--bg-secondary: #f5f7fa;--bg-sidebar: #003B5C;--bg-sidebar-hover: rgba(255,255,255,.08);--text-primary: #1a1a2e;--text-secondary: #5a6377;--text-light: #8b95a5;--border: #e2e6ed;--border-light: #eef1f5}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:Inter,Segoe UI,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}body{background:var(--bg-primary);color:var(--text-primary)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#c4cad4;border-radius:3px}.sidebar{width:272px;background:var(--bg-sidebar);display:flex;flex-direction:column;height:100%}.sidebar-header{padding:16px 18px;border-bottom:1px solid 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a:hover{color:#fff}.admin-tabs{padding:8px;display:flex;flex-direction:column;gap:2px}.admin-tab{padding:10px 12px;border:none;background:transparent;color:#fff9;font-size:13px;border-radius:8px;cursor:pointer;text-align:left;transition:all .15s}.admin-tab:hover{background:#ffffff0f;color:#ffffffd9}.admin-tab.active{background:#ffffff1f;color:#fff}.admin-main{flex:1;overflow-y:auto;padding:24px}.agent-list{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}.agent-card{padding:12px 16px;background:#fff;border-radius:10px;cursor:pointer;border:2px solid var(--border);transition:all 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