.chat-panel{padding:0;overflow:hidden;flex:1;min-height:0;display:flex;flex-direction:column}
.chat-workspace{flex:1;min-height:0;display:grid;grid-template-columns:330px minmax(0,1fr)}
aside.chat-list-pane{background:var(--surface);color:var(--text);border-right:1px solid var(--border);display:flex;flex-direction:column;min-height:0;overflow:hidden}

.chat-list-header{flex:none;padding:10px 12px 8px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:8px;background:var(--surface)}
.chat-search-bar{display:flex;align-items:center;gap:6px;background:var(--surface-alt);border:1px solid var(--border);border-radius:8px;padding:4px 8px}
.chat-search-bar .search-icon{color:var(--muted);flex-shrink:0}
.chat-search-bar input{border:none;background:transparent;outline:none;flex:1;font-size:0.8rem;color:var(--text);min-width:0;padding:2px 4px}
.chat-search-bar .icon-button{background:transparent;border:none;cursor:pointer;color:var(--muted);padding:4px;border-radius:4px;display:grid;place-items:center}
.chat-search-bar .icon-button:hover{color:var(--text)}

.chat-filter-row{display:flex;align-items:center;justify-content:space-between;gap:6px}
#chat-date-filter{font-size:0.72rem;padding:3px 6px;border:1px solid var(--border);border-radius:6px;background:var(--surface);color:var(--text)}
.chat-status-pills{display:flex;gap:4px}
.chat-pill{border:1px solid var(--border);background:var(--surface-alt);color:var(--muted);border-radius:12px;font-size:0.7rem;padding:2px 8px;cursor:pointer;transition:all 0.15s;line-height:1.3}
.chat-pill:hover{background:var(--surface);color:var(--text)}
.chat-pill.active{background:var(--brand);color:#fff;border-color:var(--brand);font-weight:600}

.chat-list{flex:1;min-height:0;overflow-y:auto;display:flex;flex-direction:column}
.chat-contact{width:100%;border-radius:0;background:transparent;color:var(--text);text-align:left;padding:11px 14px;border-bottom:1px solid var(--border);display:grid;grid-template-columns:40px 1fr auto;gap:10px;align-items:center;font-weight:400;cursor:pointer;transition:background 0.15s}
.chat-contact:hover,.chat-contact.active{background:var(--surface-alt)}
.chat-avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:#e0e7ff;color:#4338ca;font-weight:700;font-size:0.82rem;flex-shrink:0;text-transform:uppercase}
[data-theme="dark"] .chat-avatar{background:#312e81;color:#c7d2fe}
.chat-contact-main{min-width:0;display:flex;flex-direction:column;gap:2px}
.chat-contact-name{font-size:0.88rem;font-weight:700;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}
.chat-contact-sub{display:flex;align-items:center;gap:5px;font-size:0.73rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-contact-code{font-weight:600;color:var(--brand)}
.chat-contact-snippet{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-contact-meta{display:flex;flex-direction:column;align-items:flex-end;justify-content:center;gap:4px;flex-shrink:0}
.chat-contact-time{font-size:0.68rem;color:var(--muted);white-space:nowrap}
.chat-badge{font-size:0.62rem;font-weight:700;padding:2px 7px;border-radius:10px;text-transform:uppercase;letter-spacing:0.02em;display:inline-flex;align-items:center;gap:3px;white-space:nowrap}
.chat-badge.trm{background:#7860f9;color:#fff;box-shadow:0 1px 3px rgba(120,96,249,0.35)}
.chat-badge.help{background:#25d366;color:#fff;box-shadow:0 1px 3px rgba(37,211,102,0.35)}
.chat-badge.new{background:#3b82f6;color:#fff;box-shadow:0 1px 3px rgba(59,130,246,0.35)}
.chat-badge.paused{background:#f59e0b;color:#fff}

.chat-thread{background:var(--bg);min-width:0;height:100%;position:relative}
.chat-empty{height:100%;display:grid;place-content:center;text-align:center;padding:2rem}
.chat-header{flex:none;min-height:64px;background:var(--surface);border-bottom:1px solid var(--border);padding:.65rem 1.25rem;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.chat-header h2,.chat-header p{margin:0}
.chat-header-info{flex:1;min-width:0}
.chat-header-info h2{font-size:1.05rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-header-info p{font-size:0.75rem;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat-header-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap;flex-shrink:0}
.direct-action-btn{display:inline-flex;align-items:center;gap:5px;padding:6px 11px;border-radius:6px;font-size:0.76rem;font-weight:600;text-decoration:none;border:1px solid var(--border);background:var(--surface-alt);color:var(--text);transition:all 0.15s;line-height:1}
.direct-action-btn:hover{background:var(--surface);text-decoration:none}
.direct-action-btn.wa{background:#25d366;color:#fff;border-color:#22bf5b}
.direct-action-btn.wa:hover{background:#20ba5a;color:#fff}
.direct-action-btn.call{background:var(--surface-alt);color:var(--text);border-color:var(--border)}

#conversation-back{display:none;background:var(--surface-alt);color:var(--text);width:34px;height:34px;padding:0;border-radius:8px;justify-content:center;flex:none}
.chat-messages{flex:1;min-height:0;padding:1.3rem 1.5rem;overflow:auto;display:flex;flex-direction:column;gap:.6rem}
.chat-controlbar{flex:none;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 1.5rem;border-top:1px solid var(--border);background:var(--surface)}
.chat-controlbar .control-actions{display:flex;gap:8px;align-items:center}
.chat-bubble{max-width:min(62%,560px);border-radius:14px;padding:.65rem .85rem;background:var(--surface-alt);color:var(--text);align-self:flex-start;font-size:.85rem;line-height:1.5}
.chat-bubble.outbound{align-self:flex-end;background:var(--brand);color:#fff}
.chat-bubble p{margin:0;white-space:pre-wrap;word-break:break-word}
.chat-interactive-buttons{display:flex;flex-direction:column;gap:5px;margin-top:8px;padding-top:7px;border-top:1px solid rgba(255,255,255,0.18)}
.chat-interactive-btn{display:flex;align-items:center;justify-content:center;gap:6px;padding:6px 10px;border-radius:8px;font-size:0.78rem;font-weight:600;background:rgba(255,255,255,0.14);color:#fff;border:1px solid rgba(255,255,255,0.22);text-align:center;user-select:none}
.chat-interactive-btn.list-btn{background:rgba(255,255,255,0.2);font-weight:700}
.chat-bubble:not(.outbound) .chat-interactive-buttons{border-top-color:var(--border)}
.chat-bubble:not(.outbound) .chat-interactive-btn{background:var(--surface);color:var(--text);border-color:var(--border)}
.chat-bubble.template-card{background:var(--surface);border:1px solid rgba(37,211,102,0.45);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,0.06)}
.chat-bubble.template-card p{font-weight:600;color:var(--text)}
.chat-bubble.template-card footer{color:var(--muted)}
.template-header{display:flex;align-items:center;gap:6px;font-size:0.72rem;font-weight:700;letter-spacing:0.02em;color:#25d366;margin-bottom:5px;text-transform:uppercase}
.chat-bubble footer{display:flex;gap:8px;justify-content:flex-end;margin-top:6px;font-size:.68rem;opacity:.75}
.chat-context{display:block;margin-bottom:.3rem;font-size:.68rem;font-weight:700;opacity:.75}
.delivery-failed{color:var(--danger)}
.chat-composer{flex:none;display:flex;flex-direction:column;gap:8px;padding:12px 1.5rem 14px;border-top:1px solid var(--border);background:var(--surface)}
.composer-status{display:flex;align-items:center;justify-content:space-between;gap:12px;empty-cells:hide}
.composer-status:empty{display:none}
.composer-row{display:flex;gap:10px}
.composer-row textarea{flex:1;resize:none;font-family:inherit}
.composer-row button{white-space:nowrap}
.window-closed-box{background:#fffbeb;border:1px solid #fde68a;color:#92400e;padding:10px 14px;border-radius:8px;font-size:0.8rem;line-height:1.4;display:flex;flex-direction:column;gap:8px}
[data-theme="dark"] .window-closed-box{background:#78350f28;border-color:#78350f;color:#fde68a}
.window-closed-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

@media(min-width:901px){
  .chat-workspace{min-height:0;overflow:hidden}
  aside.chat-list-pane{height:100%;min-height:0}
  .chat-thread{height:100%;min-height:0;overflow:hidden}
  .chat-thread>#conversation-content{height:100%;min-height:0;display:flex;flex-direction:column}
}
@media(max-width:900px){
  .panel.chat-panel{padding:0!important;height:100%!important;overflow:hidden!important}
  .chat-workspace{grid-template-columns:1fr;position:relative;height:100%;min-height:0}
  aside.chat-list-pane{height:100%;border-right:0}
  .chat-thread{height:100%;display:none;position:absolute;inset:0}
  .chat-workspace.thread-open aside.chat-list-pane{display:none!important}
  .chat-workspace.thread-open .chat-thread{
    display:flex!important;
    flex-direction:column!important;
    position:fixed!important;
    top:0!important;
    left:0!important;
    right:0!important;
    bottom:0!important;
    width:100vw!important;
    height:100%!important;
    height:100dvh!important;
    z-index:50!important;
    background:var(--bg);
    overflow:hidden!important;
  }
  .chat-thread>#conversation-content{
    height:100%!important;
    height:100dvh!important;
    min-height:0!important;
    max-height:100%!important;
    display:flex!important;
    flex-direction:column!important;
    overflow:hidden!important;
    position:relative!important;
  }
  #conversation-back{display:flex!important}
  .chat-header{
    flex:none!important;
    min-height:56px;
    padding:.5rem .85rem;
    gap:8px;
  }
  .chat-header-actions{
    gap:5px;
  }
  .direct-action-btn{
    padding:5px 8px;
    font-size:0.72rem;
  }
  .chat-messages{
    flex:1 1 auto!important;
    min-height:0!important;
    overflow-y:auto!important;
    -webkit-overflow-scrolling:touch;
    padding:1rem .85rem!important;
  }
  .chat-controlbar,.chat-composer{
    flex:none!important;
    flex-shrink:0!important;
    padding-left:1rem;
    padding-right:1rem;
    padding-top:10px;
    padding-bottom:max(12px, env(safe-area-inset-bottom, 12px));
    background:var(--surface);
    border-top:1px solid var(--border);
    z-index:10;
  }
  .chat-controlbar .control-actions{
    display:flex;
    gap:8px;
    align-items:center;
  }
  .chat-controlbar .takeover-conversation,
  .chat-controlbar .resume-conversation{
    padding:7px 14px;
    font-size:0.82rem;
    font-weight:600;
  }
}