:root{--bg:#f5f6f8;--card:#fff;--border:#e3e5e9;--text:#1a1d23;--muted:#6b7280;--primary:#4f46e5;--primary-fg:#fff;--danger:#dc2626;--danger-bg:#fef2f2;--sidebar-bg:#16181d;--sidebar-fg:#d6d8dc;--sidebar-muted:#8b8f98;--sidebar-active:#22252c;--radius:10px}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}button,input,textarea,select{font-family:inherit;font-size:inherit}.btn{border-radius:var(--radius);border:1px solid var(--border);background:var(--card);color:var(--text);cursor:pointer;justify-content:center;align-items:center;gap:6px;padding:8px 14px;transition:background .15s,opacity .15s;display:inline-flex}.btn:hover{background:var(--bg)}.btn:disabled{opacity:.5;cursor:default}.btn-primary{background:var(--primary);color:var(--primary-fg);border-color:var(--primary)}.btn-primary:hover{opacity:.9;background:var(--primary)}.input{border:1px solid var(--border);background:var(--card);width:100%;color:var(--text);border-radius:8px;outline:none;padding:8px 10px}.input:focus{border-color:var(--primary)}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}.badge{text-transform:capitalize;border-radius:999px;padding:3px 8px;font-size:11px;font-weight:600;display:inline-block}.badge-open{color:#1d4ed8;background:#dbeafe}.badge-pending{color:#b45309;background:#fef3c7}.badge-resolved{color:#047857;background:#d1fae5}.badge-closed{color:#4b5563;background:#e5e7eb}.error-banner{background:var(--danger-bg);color:var(--danger);border:1px solid #fecaca;border-radius:8px;margin-bottom:12px;padding:10px 14px;font-size:13px}.spinner{border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;width:18px;height:18px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.app-shell{height:100vh;display:flex;overflow:hidden}.sidebar{background:var(--sidebar-bg);width:220px;color:var(--sidebar-fg);flex-direction:column;flex-shrink:0;display:flex}.sidebar-header{border-bottom:1px solid #ffffff14;padding:18px 18px 14px;font-size:15px;font-weight:700}.sidebar-nav{flex-direction:column;flex:1;gap:2px;padding:12px;display:flex}.sidebar-link{color:var(--sidebar-muted);border-radius:8px;padding:9px 12px;font-size:13px;font-weight:500}.sidebar-link:hover{background:var(--sidebar-active);color:var(--sidebar-fg)}.sidebar-link.active{background:var(--sidebar-active);color:#fff}.sidebar-footer{border-top:1px solid #ffffff14;padding:14px 18px;font-size:12px}.sidebar-footer .admin-email{color:var(--sidebar-muted);text-overflow:ellipsis;white-space:nowrap;margin-bottom:8px;display:block;overflow:hidden}.main-area{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.page{flex:1;padding:28px 32px;overflow-y:auto}.page-header{justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.page-header h1{margin:0;font-size:19px}.page-subtitle{color:var(--muted);margin-top:4px;font-size:13px}table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid var(--border);padding:10px 14px;font-size:13px}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:11px;font-weight:600}tbody tr:hover{background:var(--bg);cursor:pointer}.empty-state{color:var(--muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:60px 20px;display:flex}.centered{justify-content:center;align-items:center;padding:60px 0;display:flex}.login-shell{background:var(--bg);justify-content:center;align-items:center;height:100vh;display:flex}.login-card{width:100%;max-width:360px;padding:32px}.login-card h1{margin:0 0 4px;font-size:18px}.field{margin-bottom:14px}.field label{color:var(--muted);margin-bottom:5px;font-size:12px;font-weight:600;display:block}.tabs{flex-wrap:wrap;gap:6px;margin-bottom:16px;display:flex}.tab{color:var(--muted);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 12px;font-size:12px;font-weight:500}.tab:hover{background:var(--bg)}.tab.active{color:var(--primary);background:#eef2ff}.pagination{color:var(--muted);justify-content:flex-end;align-items:center;gap:10px;margin-top:14px;font-size:12px;display:flex}.ticket-thread{flex-direction:column;height:100%;display:flex}.thread-header{border-bottom:1px solid var(--border);background:var(--card);align-items:center;gap:12px;padding:14px 20px;display:flex}.thread-messages{flex-direction:column;flex:1;gap:14px;padding:20px;display:flex;overflow-y:auto}.msg-row{gap:8px;max-width:70%;display:flex}.msg-row.admin{flex-direction:row-reverse;align-self:flex-end}.msg-bubble{white-space:pre-wrap;border-radius:14px;padding:10px 14px;font-size:13px;line-height:1.5}.msg-row.user .msg-bubble{background:var(--card);border:1px solid var(--border);border-top-left-radius:4px}.msg-row.admin .msg-bubble{background:var(--primary);color:var(--primary-fg);border-top-right-radius:4px}.msg-meta{color:var(--muted);margin-top:4px;font-size:10px}.thread-input{border-top:1px solid var(--border);background:var(--card);align-items:flex-end;gap:8px;padding:14px 20px;display:flex}.thread-input textarea{resize:none;border:1px solid var(--border);border-radius:8px;outline:none;flex:1;min-height:38px;max-height:140px;padding:8px 10px}.thread-input textarea:focus{border-color:var(--primary)}.attachment-chip{border:1px solid var(--border);background:var(--bg);border-radius:8px;align-items:center;gap:6px;max-width:220px;padding:6px 10px;font-size:12px;display:inline-flex}