/* Layout */
  .tab-content { display:none; }
  .tab-content.active { display:block; }
  #tab-knowledgebase.active { display:flex; }
  .main {
    display:grid; grid-template-columns:1fr 360px; height:calc(100vh - 202px); }
  .calls-panel { overflow-y:auto; border-right:1px solid var(--border); }
  .sidebar { overflow-y:auto; background:var(--surface); }

  .panel-header { padding:11px 20px; border-bottom:1px solid var(--border);
    font-size:11px; color:var(--muted); text-transform:uppercase; letter-spacing:0.08em;
    display:flex; justify-content:space-between; align-items:center;
    position:sticky; top:0; background:var(--bg); z-index:10; }
  .panel-header span { background:var(--border); padding:2px 8px; border-radius:10px; font-size:11px; color:var(--text); }

  /* Call cards */
  .call-card { border-bottom:1px solid var(--border); padding:14px 20px;
    cursor:pointer; transition:background 0.15s; }
  .call-card:hover { background:var(--border-subtle); }
  .call-card.selected { background:var(--info-bg-tint); border-left:2px solid var(--accent); }
  .call-card-top { display:grid; grid-template-columns:auto 1fr auto; gap:12px; align-items:start; }
  .call-card-customer { margin-top:10px; padding-top:10px; border-top:1px solid var(--border);
    display:grid; grid-template-columns:1fr 1fr 1fr; gap:8px; }
  .customer-field { display:flex; flex-direction:column; gap:2px; }
  .customer-label { font-size:10px; color:var(--muted); text-transform:uppercase; letter-spacing:0.06em; }
  .customer-value { font-size:12px; color:var(--text); font-family:var(--font); }

  .agent-icon { width:40px; height:40px; border-radius:10px;
    display:flex; align-items:center; justify-content:center; font-size:18px; flex-shrink:0; }
  .icon-techsupport { background:var(--info-bg-tint); }
  .icon-sales       { background:var(--success-bg-tint); }
  .icon-billing     { background:var(--warning-bg-tint); }
  .icon-survey      { background:var(--info-bg-tint); }
  .icon-appointment { background:var(--danger-bg-tint); }
  .icon-unknown     { background:var(--neutral-bg-tint); }

  .call-info { min-width:0; }
  .call-name { font-size:14px; font-weight:600; color:var(--text); margin-bottom:3px; }
  .call-name.unknown { color:var(--muted); font-style:italic; font-weight:normal; }
  .call-meta { display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
  .badge { font-size:10px; padding:2px 7px; border-radius:4px; font-weight:600; text-transform:uppercase; letter-spacing:0.06em; }
  .badge-techsupport { background:var(--info-bg-tint);    color:var(--accent); }
  .badge-sales       { background:var(--success-bg-tint); color:var(--success); }
  .badge-billing     { background:var(--warning-bg-tint); color:var(--warning); }
  .badge-survey      { background:var(--info-bg-tint);    color:var(--disp-voicemail); }
  .badge-appointment { background:var(--danger-bg-tint);  color:var(--disp-ivr-hangup); }
  .badge-unknown     { background:var(--neutral-bg-tint); color:var(--neutral); }
  .badge-active      { background:var(--success-bg-tint); color:var(--success); }

  .call-right { text-align:right; flex-shrink:0; }
  .call-duration { font-size:14px; font-family:var(--font); font-weight:600; }
  .call-time { font-size:11px; color:var(--muted); margin-top:2px; }

  /* Detail panel */
  .detail-header { padding:16px 20px; border-bottom:1px solid var(--border); }
  .detail-customer-name { font-size:18px; font-weight:700; margin-bottom:4px; }
  .detail-customer-phone { font-size:13px; color:var(--muted); font-family:var(--font); margin-bottom:8px; }
  .detail-section { padding:14px 20px; border-bottom:1px solid var(--border); }
  .detail-section-title { font-size:10px; color:var(--muted); text-transform:uppercase;
    letter-spacing:0.1em; margin-bottom:10px; }
  .detail-row { display:flex; justify-content:space-between; align-items:center; margin-bottom:7px; }
  .detail-key { font-size:12px; color:var(--muted); }
  .detail-val { font-size:12px; font-family:var(--font); color:var(--text); }

  .participant-item { display:flex; align-items:center; gap:10px;
    padding:8px 0; border-bottom:1px solid var(--border); }
  .participant-item:last-child { border-bottom:none; }
  .participant-avatar { width:32px; height:32px; border-radius:50%;
    display:flex; align-items:center; justify-content:center; font-size:14px; flex-shrink:0; }
  .avatar-sip   { background:var(--info-bg-tint); }
  .avatar-agent { background:var(--success-bg-tint); }
  .participant-info { flex:1; min-width:0; }
  .participant-name { font-size:12px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
  .participant-type { font-size:10px; color:var(--muted); }

  /* Log */
  .log-item { padding:8px 20px; border-bottom:1px solid var(--border);
    display:flex; gap:10px; align-items:flex-start; }
  .log-dot { width:6px; height:6px; border-radius:50%; flex-shrink:0; margin-top:5px; }
  .log-text { font-size:12px; color:var(--muted); line-height:1.4; }
  .log-text strong { color:var(--text); font-weight:500; }
  .log-time { font-size:10px; color:var(--muted); font-family:var(--font); white-space:nowrap; margin-left:auto; }
  .log-dot.green { background:var(--green); }
  .log-dot.red   { background:var(--red); }
  .log-dot.blue  { background:var(--accent); }
  .log-dot.amber { background:var(--amber); }

  .chart-area { padding:16px 20px; }
  .mini-bar-container { display:flex; align-items:flex-end; gap:4px; height:60px; margin-top:8px; }
  .mini-bar { flex:1; border-radius:3px 3px 0 0; min-height:4px; transition:height 0.3s; }
  .chart-labels { display:flex; gap:4px; margin-top:4px; }
  .chart-label { flex:1; font-size:9px; color:var(--muted); text-align:center; }

  .empty-state { display:flex; flex-direction:column; align-items:center; justify-content:center;
    height:300px; gap:12px; color:var(--muted); }
  .no-selection { display:flex; flex-direction:column; align-items:center; justify-content:center;
    height:200px; gap:8px; color:var(--muted); }

  .filter-bar { padding:10px 20px; border-bottom:1px solid var(--border);
    display:flex; gap:6px; flex-wrap:wrap; align-items:center; }
  .filter-btn { font-size:11px; padding:4px 10px; border-radius:20px; border:1px solid var(--border);
    background:transparent; color:var(--muted); cursor:pointer; transition:all 0.15s; }
  .filter-btn:hover { border-color:var(--accent); color:var(--text); }
  .filter-btn.active { background:var(--accent); border-color:var(--accent); color:var(--text-inverted); }

  .loading { display:flex; align-items:center; justify-content:center;
    height:200px; color:var(--muted); font-size:13px; gap:8px; }
  .spinner { width:16px; height:16px; border:2px solid var(--border);
    border-top-color:var(--accent); border-radius:50%; animation:spin 0.8s linear infinite; }
  @keyframes spin { to { transform:rotate(360deg); } }
  .error-bar { padding:10px 20px; background:var(--danger-bg-tint);
    border-bottom:1px solid var(--danger-border); font-size:12px; color:var(--danger); }