:root{--bg: #0f1117;--bg-card: #1a1d27;--bg-input: #252836;--border: #2d3142;--text: #e8eaed;--text-muted: #9aa0b4;--accent: #6366f1;--success: #10b981;--danger: #ef4444}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.admin-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:var(--bg-card);border-right:1px solid var(--border);padding:20px;display:flex;flex-direction:column}.sidebar-logo{font-weight:800;font-size:18px;margin-bottom:24px;color:var(--accent)}.sidebar nav{display:flex;flex-direction:column;gap:4px;flex:1}.sidebar nav a{padding:10px 12px;border-radius:8px;color:var(--text-muted);text-decoration:none;font-size:14px}.sidebar nav a.active,.sidebar nav a:hover{background:#6366f126;color:var(--accent)}.logout-btn{margin-top:auto}.main-content{flex:1;padding:28px;overflow-y:auto}.page-title{font-size:22px;font-weight:700;margin-bottom:20px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:16px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}.stat-card{background:var(--bg-card);border:1px solid var(--border);border-top:3px solid;border-radius:12px;padding:20px}.stat-value{font-size:32px;font-weight:800}.stat-label{color:var(--text-muted);font-size:13px;margin-top:4px}.btn{padding:8px 16px;border:none;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600}.btn-primary{background:var(--accent);color:#fff}.btn-secondary{background:var(--bg-input);color:var(--text);border:1px solid var(--border)}.btn-danger{background:var(--danger);color:#fff}.btn-sm{padding:4px 10px;font-size:12px}input,select,textarea{background:var(--bg-input);border:1px solid var(--border);border-radius:8px;padding:10px 12px;color:var(--text);font-size:13px;outline:none}input:focus,select:focus{border-color:var(--accent)}.form-row{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap;align-items:center}.search-row{display:flex;gap:10px;margin-bottom:16px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--border)}th{color:var(--text-muted);font-weight:600}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:32px;width:360px;display:flex;flex-direction:column;gap:12px}.login-card h1{text-align:center;margin-bottom:8px}.error-msg{color:var(--danger);font-size:13px}.hint{color:var(--text-muted);font-size:12px;margin-bottom:8px}.msg{color:var(--success);font-size:13px;margin-top:8px}.loading{color:var(--text-muted)}.back-link{color:var(--accent);text-decoration:none;font-size:13px;display:inline-block;margin-bottom:12px}.chat-box{max-height:400px;overflow-y:auto;margin:16px 0}.chat-msg{padding:10px;border-radius:8px;margin-bottom:8px;max-width:80%}.chat-msg.user{background:#6366f11a}.chat-msg.admin{background:#10b9811a;margin-left:auto}.chat-meta{font-size:11px;color:var(--text-muted);margin-bottom:4px}.status-row{display:flex;gap:6px;margin:12px 0}