:root{--bg: #0c1017;--panel: #161b26;--panel-2: #1f2634;--text: #e6e9f0;--muted: #8b93a7;--accent: #7c5cff;--success: #22c55e;--danger: #ef4444;--border: #2a3345;--radius: 10px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--panel);border-right:1px solid var(--border);padding:20px}.sidebar .brand{font-weight:700;font-size:17px;margin-bottom:24px;display:block}.sidebar nav a{display:block;color:var(--muted);padding:10px 12px;border-radius:8px;margin-bottom:4px}.sidebar nav a.router-link-active{color:var(--text);background:var(--panel-2)}.main{flex:1;padding:24px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px}.btn{padding:8px 14px;border:none;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer;font-size:14px}.btn.secondary{background:var(--panel-2)}.btn.danger{background:var(--danger)}.btn.sm{padding:5px 10px;font-size:13px}input,select,textarea{width:100%;padding:9px 12px;margin:6px 0 14px;background:var(--panel-2);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px}label{font-size:13px;color:var(--muted)}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}th,.muted{color:var(--muted)}h2{margin-bottom:20px}.chat-box{height:460px;overflow-y:auto;display:flex;flex-direction:column;gap:8px;padding:12px;background:var(--bg);border-radius:8px}.msg{max-width:70%;padding:8px 12px;border-radius:10px;font-size:14px}.msg.client{background:var(--panel-2);align-self:flex-start}.msg.admin{background:var(--accent);align-self:flex-end}.msg .meta{font-size:11px;opacity:.7;margin-bottom:3px}