.navbar{background:var(--bg-card);border-bottom:1px solid var(--border);z-index:100;position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;gap:1rem;height:3.5rem;display:flex}.navbar-brand{color:var(--primary);font-size:1.1rem;font-weight:700;text-decoration:none}.navbar-links{gap:.25rem;display:flex}.nav-link{color:var(--text-muted);border-radius:.375rem;padding:.375rem .75rem;font-size:.875rem;text-decoration:none;transition:all .15s}.nav-link:hover{color:var(--text);background:var(--bg)}.nav-link.active{color:var(--primary);background:var(--keyword-bg)}.navbar-user{align-items:center;gap:.75rem;display:flex}.user-name{color:var(--text-muted);font-size:.875rem}@media (width<=768px){.navbar-inner{flex-wrap:wrap;height:auto;padding:.5rem}.navbar-links{order:3;width:100%;padding-bottom:.25rem;overflow-x:auto}.user-name{display:none}}.message-card{transition:box-shadow .15s}.message-card:hover{box-shadow:0 2px 8px #00000014}.message-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.5rem;margin-bottom:.5rem;display:flex}.message-meta{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.message-chat{color:var(--primary);font-size:.875rem;font-weight:600}.message-sender{color:var(--text-muted);font-size:.8rem}.message-time{color:var(--text-muted);font-size:.75rem}.message-header-actions{align-items:center;gap:.5rem;display:flex}.message-keywords{flex-wrap:wrap;gap:.25rem;display:flex}.btn-dismiss{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:4px;padding:2px 6px;font-size:1.25rem;line-height:1;transition:background .15s,color .15s}.btn-dismiss:hover{color:var(--danger,#dc3545);background:#00000014}.message-text{white-space:pre-wrap;word-break:break-word;font-size:.9rem;line-height:1.5}.message-photo{margin-top:.75rem}.message-photo img{cursor:pointer;border-radius:.5rem;max-width:100%;max-height:400px;transition:opacity .15s}.message-photo img:hover{opacity:.9}@media (width<=768px){.message-photo img{max-height:250px}}:root{--primary:#2563eb;--primary-hover:#1d4ed8;--bg:#f8fafc;--bg-card:#fff;--text:#1e293b;--text-muted:#64748b;--border:#e2e8f0;--success:#22c55e;--danger:#ef4444;--warning:#f59e0b;--keyword-bg:#dbeafe;--keyword-text:#1e40af}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.btn{cursor:pointer;border:none;border-radius:.5rem;justify-content:center;align-items:center;padding:.5rem 1rem;font-size:.875rem;font-weight:500;transition:all .15s;display:inline-flex}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#dc2626}.btn-outline{border:1px solid var(--border);color:var(--text);background:0 0}.btn-outline:hover{background:var(--bg)}.btn-sm{padding:.25rem .5rem;font-size:.75rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:.75rem;margin-bottom:1rem;padding:1.5rem}.input{border:1px solid var(--border);border-radius:.5rem;width:100%;padding:.5rem .75rem;font-size:.875rem;transition:border-color .15s}.input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #2563eb1a}.form-group{margin-bottom:1rem}.form-group label{color:var(--text);margin-bottom:.25rem;font-size:.875rem;font-weight:500;display:block}.keyword-badge{background:var(--keyword-bg);color:var(--keyword-text);border-radius:1rem;align-items:center;gap:.25rem;padding:.125rem .5rem;font-size:.75rem;font-weight:500;display:inline-flex}.keyword-badge button{cursor:pointer;color:var(--keyword-text);background:0 0;border:none;padding:0;font-size:.875rem;line-height:1}.error-text{color:var(--danger);margin-top:.25rem;font-size:.8rem}.loading{color:var(--text-muted);justify-content:center;align-items:center;padding:2rem;display:flex}@media (width<=768px){.container{padding:0 .5rem}.card{padding:1rem}}