body.chat-screen{overflow:hidden}
.chat-screen .shell{position:fixed;top:var(--chat-top,0);left:0;right:0;height:var(--chat-height,100dvh);min-height:0;overflow:hidden}
.chat-screen aside{height:100%;min-height:0;overflow-y:auto}
.chat-screen .workspace{height:100%;min-height:0;display:flex;flex-direction:column}
.chat-screen .workspace>header{flex-shrink:0}
.chat-screen #main{flex:1;min-height:0;width:100%;max-width:none;margin:0;padding:1rem;overflow:hidden}
.chat-screen .chat-layout{height:100%;min-height:0;grid-template-columns:minmax(270px,340px) minmax(0,1fr);gap:0;border:1px solid var(--border);border-radius:16px;overflow:hidden;background:white}
.chat-inbox{display:flex;flex-direction:column;min-height:0;min-width:0;border-right:1px solid var(--border);background:#fcfdfb}
.inbox-header{padding:1rem;flex-shrink:0}
.inbox-title{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:1rem}
.inbox-title h1{font-size:1.65rem;margin:0}
.inbox-title .row{gap:.35rem;flex-wrap:nowrap}
.inbox-title button{padding:.5rem .7rem;min-width:40px;min-height:40px}
.inbox-filters{display:flex;gap:.4rem;margin-top:.8rem}
.inbox-filters button{padding:.4rem .7rem;border-radius:20px;font-size:.85rem}
.inbox-filters button[aria-pressed=true]{color:white;background:var(--green);border-color:var(--green)}
.chat-screen .conversation-list{flex:1;min-height:0;max-height:none;overflow-y:auto;overscroll-behavior:contain;padding:0 .5rem .75rem;gap:.3rem}
.chat-screen .conversation{display:flex;align-items:center;gap:.7rem;flex-shrink:0;padding:.9rem .7rem;border-radius:12px;min-width:0}
.conversation-avatar{width:38px;height:38px;flex-shrink:0;display:grid;place-items:center;background:#e5ece1;color:var(--green);border-radius:12px}
.conversation-copy{min-width:0;flex:1}
.conversation-copy strong,.conversation-copy small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conversation-copy small{font-size:.8rem}
.chat-screen .chat-panel{height:100%;min-height:0;min-width:0;border:0;border-radius:0;padding:0;overflow:hidden}
.chat-panel>.empty{margin:auto;padding:2rem;border:0}
.chat-screen .thread-header{display:flex;align-items:center;flex-wrap:nowrap;gap:.7rem;flex-shrink:0;margin:0!important;padding:1rem 1.2rem;border-bottom:1px solid var(--border);min-width:0}
.thread-header>div{min-width:0;flex:1}
.thread-header h2{font-size:1.05rem;white-space:nowrap;text-overflow:ellipsis;overflow:hidden;margin:0 0 .3rem!important}
.thread-header small{display:block;font-size:.78rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thread-header>a{font-size:.8rem;max-width:95px;flex-shrink:0}
.thread-header>button:not(.chat-back){font-size:.8rem;padding:.6rem}
.chat-screen .messages{flex:1;min-height:0;max-height:none;overflow-y:auto;overscroll-behavior:contain;padding:1rem 1.2rem;background:#f8faf6}
.messages .message,.messages>.empty,.messages>button{flex-shrink:0}
.chat-screen .composer{flex-shrink:0;margin:0;padding:.75rem 1rem max(.75rem,env(safe-area-inset-bottom));background:white}
.chat-screen .composer textarea{min-width:0;min-height:44px;height:44px;max-height:110px;resize:none;font-size:16px}
.chat-screen .composer button{min-height:44px;padding:.6rem .8rem}
.chat-back{display:none}
.chat-panel>.help{margin:.6rem 1rem;flex-shrink:0}
@media(max-width:1000px) and (min-width:761px){.chat-screen #main{padding:.5rem}.chat-screen .chat-layout{grid-template-columns:260px minmax(0,1fr)}}
@media(max-width:760px){
 .chat-screen #main{padding:0}
 .chat-screen .chat-layout{display:flex;border:0;border-radius:0;min-height:0}
 .chat-inbox{width:100%;border:0}
 .chat-screen .chat-panel{display:none;width:100%}
 .chat-screen.thread-open .chat-inbox{display:none}
 .chat-screen.thread-open .chat-panel{display:flex}
 .chat-back{display:block;padding:.5rem .7rem;min-height:44px;flex-shrink:0;font-size:1.25rem}
 .chat-screen .thread-header{padding:.6rem .75rem;gap:.5rem}
 .chat-screen .messages{padding:.8rem}
 .chat-screen .composer{padding:.6rem .65rem max(.6rem,env(safe-area-inset-bottom));gap:.4rem}
 .chat-screen .conversation-list{max-height:none}
 .chat-screen .message{max-width:92%}
}