*{box-sizing:border-box}body{margin:0;font:14px system-ui,sans-serif;background:#f4f5f7;color:#171717}button,input,textarea,select{font:inherit}header{height:54px;background:#111;color:#fff;display:flex;align-items:center;padding:0 18px;gap:18px}header strong{font-size:18px;margin-right:auto}header form{margin:0}.link{background:none;color:#fff;border:0}.app{display:grid;grid-template-columns:340px 1fr;grid-template-rows:1fr;height:calc(100vh - 54px);overflow:hidden}aside{background:#fff;border-right:1px solid #ddd;overflow:auto;min-height:0}#chat-panel{overflow:hidden;min-height:0}.search{padding:12px;border-bottom:1px solid #eee;display:flex;gap:8px;align-items:center}.search input{width:100%;padding:10px;border:1px solid #ccc;border-radius:8px}.chat-item{width:100%;border:0;border-bottom:1px solid #eee;background:#fff;padding:12px;display:flex;text-align:left;gap:10px;align-items:center;color:inherit;text-decoration:none;cursor:pointer}.chat-item:hover,.chat-item.active{background:#f0f2f4}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#111;color:#fff;overflow:hidden}.avatar img{width:100%;height:100%;object-fit:cover}.chat-summary{display:flex;flex-direction:column;min-width:0;flex:1}.chat-summary small,.muted{color:#777}.badge{background:#111;color:#fff;border-radius:999px;padding:3px 7px}.conversation{height:100%;display:grid;grid-template-rows:auto auto 1fr auto;min-height:0;overflow:hidden}.conversation-head{padding:12px 18px;background:#fff;border-bottom:1px solid #ddd;display:flex;justify-content:space-between}.conversation-head h2{margin:0}.labels{display:flex;gap:5px;padding:7px 18px;background:#fff}.labels form{margin:0}.pill{border:1px solid #bbb;background:#fff;border-radius:999px;padding:4px 9px}.pill.selected{background:#111;color:#fff}.messages{padding:20px;overflow:auto;display:flex;flex-direction:column;gap:9px;min-height:0;position:relative}.jump-latest{position:sticky;bottom:12px;align-self:center;margin-top:8px;background:#111;color:#fff;border:0;border-radius:999px;padding:6px 14px;cursor:pointer;box-shadow:0 2px 6px #0003;font:inherit;z-index:2}.bubble,.note{max-width:72%;padding:10px 12px;border-radius:10px;background:#fff;box-shadow:0 1px 2px #ccc}.bubble img{max-width:100%;border-radius:8px;display:block}.bubble.out{align-self:flex-end;background:#dcf8c6}.bubble small,.note small{display:block;color:#777;margin-top:5px}.note{background:#fff1b8;border-left:4px solid #d3a400}.media-thumb{display:block;width:120px;height:120px;border-radius:8px;overflow:hidden;cursor:pointer;background:#eee;padding:0}.media-thumb img{width:100%;height:100%;object-fit:cover;display:block}.media-thumb--file{display:flex;align-items:center;justify-content:center;text-align:center;color:#111;font-size:12px;text-decoration:none;background:#f0f2f4;border:1px solid #ddd;padding:8px}.media-thumb--file span{line-height:1.3}.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:50}.lightbox.open{display:flex}.lightbox-content{max-width:90vw;max-height:90vh;display:flex;flex-direction:column;align-items:center;gap:10px}.lightbox-content img,.lightbox-content video{max-width:90vw;max-height:80vh;object-fit:contain;background:#000;border-radius:6px}.lightbox-content audio{width:80vw;max-width:600px}.lightbox-name{color:#fff;font-size:13px}.lightbox-download{color:#fff;background:#111;padding:10px 16px;border-radius:8px;text-decoration:none}.lightbox-close,.lightbox-prev,.lightbox-next{position:absolute;background:rgba(0,0,0,.5);color:#fff;border:0;border-radius:50%;width:42px;height:42px;font-size:22px;cursor:pointer;display:grid;place-items:center}.lightbox-close{top:16px;right:16px}.lightbox-prev{left:16px;top:50%;transform:translateY(-50%)}.lightbox-next{right:16px;top:50%;transform:translateY(-50%)}.composer{background:#fff;border-top:1px solid #ddd;padding:10px}.composer form{display:flex;gap:8px}.composer textarea{flex:1;min-height:52px;padding:10px}.composer button,.login button{background:#111;color:#fff;border:0;border-radius:7px;padding:10px 18px}.empty{display:grid;place-items:center;height:100%;color:#777}.login{min-height:100vh;display:grid;place-items:center}.card{background:#fff;padding:30px;width:min(360px,90vw);box-shadow:0 4px 20px #ccc}.card input{width:100%;padding:9px}.profile-link{color:inherit;text-decoration:none;cursor:pointer}.profile-link:hover{text-decoration:underline}.profile-header{display:flex;align-items:center;gap:12px;padding:12px 18px;background:#fff;border-bottom:1px solid #ddd}.profile-header h2{margin:0;font-size:18px}.profile-header .link{color:#111;font-size:16px;cursor:pointer}.conversation.profile{grid-template-rows:auto minmax(0,1fr)}.profile-body{padding:30px 18px;overflow:auto;display:flex;flex-direction:column;align-items:center;gap:24px;min-height:0}.profile-avatar{display:flex;flex-direction:column;align-items:center;gap:12px}.profile-avatar img{width:200px;height:200px;border-radius:50%;object-fit:cover;background:#eee}.btn{display:inline-block;padding:8px 16px;background:#111;color:#fff;border-radius:7px;text-decoration:none;font-size:13px}.profile-details{width:100%;max-width:400px;border-collapse:collapse}.profile-details td{padding:8px 0;border-bottom:1px solid #eee;vertical-align:top}.profile-details td:first-child{font-weight:600;color:#777;width:100px}@media(max-width:800px){.app{grid-template-columns:120px 1fr}.chat-summary small{display:none}.chat-item{padding:8px}.labels{overflow:auto}.bubble,.note{max-width:90%}.media-thumb{width:90px;height:90px}}