/* DIBANA Chat Browser Rebuild — premium three-zone Messenger surface */
@media (min-width:768px){
  html,body{height:100%;overflow:hidden}
  .dibana-app{height:100dvh;min-height:0;overflow:hidden}
  .dibana-main{min-height:0;overflow:hidden;padding:12px 14px 14px}
  .dibana-workspace{width:100%;max-width:none;height:100%;min-height:0;margin:0;gap:0}
}
.chat2{display:grid;grid-template-columns:minmax(300px,330px) minmax(480px,1fr) minmax(250px,290px);height:100%;min-height:0;background:#fff;border:1px solid var(--dibana-border);border-radius:16px;overflow:hidden;box-shadow:0 10px 32px rgba(20,24,39,.05)}
.chat2-sidebar{display:grid;grid-template-rows:auto auto minmax(0,1fr);border-right:1px solid var(--dibana-border);min-width:0;min-height:0;background:#fff}
.chat2-head{padding:14px 14px 11px;border-bottom:1px solid var(--dibana-border)}
.chat2-head-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.chat2-head h1{margin:0;font-size:1.22rem;letter-spacing:-.02em}
.chat2-new{min-width:126px;height:38px;padding:0 13px;border:0;border-radius:10px;background:var(--dibana-purple);color:#fff;font-size:.84rem;font-weight:800;cursor:pointer;box-shadow:0 4px 12px rgba(98,70,234,.18)}
.chat2-new:hover{filter:brightness(.98)}
.chat2-conversation-search{margin-top:10px;width:100%;height:40px}
.chat2-filters{display:flex;gap:6px;padding:9px 14px;border-bottom:1px solid var(--dibana-border)}
.chat2-filter{border:0;background:transparent;border-radius:999px;padding:6px 11px;font-weight:700;cursor:pointer;color:var(--dibana-text-2)}
.chat2-filter.is-active{background:var(--dibana-purple);color:#fff}
.chat2-threads{overflow:auto;min-height:0;overscroll-behavior:contain}
.chat2-empty{padding:34px 18px;text-align:center;color:var(--dibana-text-2)}
.chat2-empty strong{display:block;color:var(--dibana-text);font-size:.98rem;margin-bottom:5px}
.chat2-thread{width:100%;display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:10px;align-items:center;border:0;border-bottom:1px solid var(--dibana-border);background:#fff;padding:10px 12px;text-align:left;cursor:pointer}
.chat2-thread:hover,.chat2-thread.is-active{background:var(--dibana-purple-soft)}
.chat2-avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;display:grid;place-items:center;background:var(--dibana-purple-soft);color:var(--dibana-purple);font-weight:800;border:1px solid rgba(98,70,234,.14)}
.chat2-avatar img{width:100%;height:100%;object-fit:cover}
.chat2-avatar .chat2-avatar-mark,.chat2-avatar-mark{object-fit:contain!important;padding:8px;background:#fff;box-sizing:border-box}
.chat2-thread strong,.chat2-thread span{display:block}
.chat2-thread strong{font-size:.88rem}
.chat2-thread-preview{margin-top:2px;color:var(--dibana-text-2);font-size:.76rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat2-thread-time{font-size:.68rem;color:var(--dibana-text-2)}
.chat2-unread{margin-top:4px;background:var(--dibana-purple);color:#fff;border-radius:999px;min-width:20px;height:20px;display:grid;place-items:center;font-size:.67rem}
.chat2-main{display:grid;grid-template-rows:auto minmax(0,1fr) auto;min-width:0;min-height:0;background:#fff}
.chat2-main-head{min-height:68px;padding:9px 15px;border-bottom:1px solid var(--dibana-border);display:flex;align-items:center;gap:11px;background:#fff}
.chat2-main-copy{min-width:0;flex:1}
.chat2-main-copy strong,.chat2-main-copy span{display:block}
.chat2-main-copy strong{font-size:1rem}
.chat2-main-copy span{color:var(--dibana-text-2);font-size:.79rem;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chat2-messages{min-height:0;overflow:auto;padding:18px 20px;display:flex;flex-direction:column;gap:9px;background:linear-gradient(180deg,#fbfcff 0%,var(--dibana-bg) 100%);overscroll-behavior:contain}
.chat2-message{max-width:min(72%,680px)}
.chat2-message.is-own{align-self:flex-end}
.chat2-bubble{background:#fff;border:1px solid var(--dibana-border);padding:10px 13px;border-radius:15px 15px 15px 5px;line-height:1.42;box-shadow:0 2px 8px rgba(20,24,39,.03)}
.chat2-message.is-own .chat2-bubble{background:var(--dibana-purple);color:#fff;border-color:var(--dibana-purple);border-radius:15px 15px 5px 15px}
.chat2-meta{font-size:.67rem;color:var(--dibana-text-2);margin-top:4px}
.chat2-message.is-own .chat2-meta{text-align:right}
.chat2-composer{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:10px 11px;border-top:1px solid var(--dibana-border);background:#fff;position:relative;z-index:3}
.chat2-composer textarea{width:100%;min-height:44px;max-height:120px;resize:none;border:1px solid var(--dibana-border);border-radius:14px;padding:11px 13px;font:inherit;outline:none;background:#fff}
.chat2-composer textarea:focus{border-color:var(--dibana-purple);box-shadow:0 0 0 3px rgba(98,70,234,.15)}
.chat2-send{min-width:78px;border:0;border-radius:12px;background:var(--dibana-purple);color:#fff;font-weight:800;cursor:pointer}
.chat2-send:disabled,.chat2-composer textarea:disabled{opacity:.5;cursor:not-allowed}
.chat2-context{border-left:1px solid var(--dibana-border);background:#fff;min-width:0;min-height:0;overflow:auto;padding:16px 15px;overscroll-behavior:contain}
.chat2-context-card{text-align:center}
.chat2-context-avatar{width:86px;height:86px;border-radius:22px;margin:2px auto 11px;overflow:hidden;display:grid;place-items:center;background:var(--dibana-purple-soft);border:1px solid var(--dibana-border)}
.chat2-context-avatar img{width:100%;height:100%;object-fit:cover}
.chat2-context-avatar .chat2-avatar-mark{padding:17px}
.chat2-context-card h2{font-size:1.04rem;margin:0;color:var(--dibana-text)}
.chat2-context-card p{font-size:.78rem;line-height:1.4;color:var(--dibana-text-2);margin:5px 0 0}
.chat2-context-rule{border:0;border-top:1px solid var(--dibana-border);margin:15px 0}
.chat2-context-section{text-align:left}
.chat2-context-section strong{display:block;font-size:.8rem;margin-bottom:5px}
.chat2-context-section span{display:block;font-size:.74rem;line-height:1.45;color:var(--dibana-text-2)}
.chat2-people-wrap{position:relative;z-index:100;flex:1;min-width:220px;pointer-events:auto!important}
.chat2-people-input{position:relative;z-index:101;width:100%;height:42px;pointer-events:auto!important;user-select:text!important;-webkit-user-select:text!important;cursor:text!important}
.chat2-people-results{position:absolute;left:0;right:0;top:calc(100% + 8px);z-index:102;background:#fff;border:1px solid var(--dibana-border);border-radius:14px;box-shadow:0 14px 34px rgba(20,35,70,.16);max-height:420px;overflow:auto}
.chat2-person{width:100%;display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:10px;align-items:center;border:0;border-bottom:1px solid var(--dibana-border);padding:10px 12px;background:#fff;text-align:left;cursor:pointer}
.chat2-person:last-child{border-bottom:0}
.chat2-person:hover{background:var(--dibana-purple-soft)}
.chat2-person-copy strong,.chat2-person-copy span{display:block}
.chat2-person-copy span{font-size:.78rem;color:var(--dibana-text-2)}
.chat2-person-action{color:var(--dibana-purple);font-weight:800;font-size:.79rem}
.chat2-status{grid-column:1/-1;padding:8px 13px;font-size:.8rem;color:var(--dibana-danger);background:#fff5f5;border-bottom:1px solid #ffd7d7}
.chat2-status:empty{display:none}
.dibana-topbar:has(.chat2-people-wrap){isolation:isolate}
.dibana-topbar:has(.chat2-people-wrap) .dibana-topbar__actions{position:relative;z-index:20}
@media(max-width:1180px){.chat2{grid-template-columns:300px minmax(0,1fr)}.chat2-context{display:none}}
@media(max-width:900px){.chat2{grid-template-columns:280px minmax(0,1fr)}}
@media(max-width:767px){
  html,body{overflow:auto}
  .dibana-main{padding:16px}
  .chat2{display:block;height:auto;min-height:calc(100dvh - 130px);border-radius:12px}
  .chat2-main{min-height:70dvh}
  .chat2-sidebar{border-right:0}
  .chat2-thread-open .chat2-sidebar{display:none}
  .chat2:not(.chat2-thread-open) .chat2-main{display:none}
  .chat2-people-wrap{width:100%}
  .chat2-new{min-width:112px}
  .chat2-context{display:none}
}