:root{--bg: #ffffff;--bg-side: #ffffff;--bg-chat: #e6ebee;--page-bg: #cfd6dc;--text: #000000;--text-muted: #707991;--accent: #3390ec;--divider: #e6e6e6;--app-max-width: 1280px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{background:var(--page-bg)}.app-shell{height:100%;max-width:var(--app-max-width);margin:0 auto;background:var(--bg);display:flex;overflow:hidden;border-left:1px solid var(--divider);border-right:1px solid var(--divider);box-shadow:0 0 24px #00000024}@media(max-width:600px){.app-shell{max-width:100%;border:none;box-shadow:none}}.auth-screen{margin:auto;width:100%;display:flex;justify-content:center}.auth-card{display:flex;flex-direction:column;gap:12px;width:320px;padding:28px}.auth-card h1{margin:0 0 8px;font-size:24px;text-align:center}.auth-card input{padding:11px 12px;border:1px solid var(--divider);border-radius:8px;font-size:15px;outline:none}.auth-card input:focus{border-color:var(--accent)}.auth-card button[type=submit]{padding:11px 12px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:15px;cursor:pointer}.auth-card button[type=submit]:disabled{opacity:.5;cursor:default}.auth-link{background:none;border:none;color:var(--accent);cursor:pointer;font-size:14px}.auth-error{margin:0;color:#d14836;font-size:14px;text-align:center}.home{display:flex;width:100%;height:100%}.sidebar{width:320px;min-width:260px;display:flex;flex-direction:column;border-right:1px solid var(--divider)}.home-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--divider);font-weight:600}.home-header button{background:none;border:none;color:var(--accent);cursor:pointer;font-weight:400}.conversation{flex:1;display:flex;background:var(--bg-chat)}.conversation-empty{margin:auto;padding:7px 16px;border-radius:16px;background:#0000000f;color:var(--text-muted);font-size:14px}.conv{display:flex;flex-direction:column;flex:1;min-width:0}.conv-header{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--bg);border-bottom:1px solid var(--divider);font-weight:600}.conv-back{display:none;border:none;background:none;font-size:26px;line-height:1;color:var(--accent);cursor:pointer;padding:0 4px 0 0}.conv-typing{font-weight:400;font-size:13px;color:var(--accent)}.conv-scroll{flex:1;overflow-y:auto;padding:16px}.conv-loading{text-align:center;color:var(--text-muted);font-size:13px;padding-bottom:8px}.conv-messages{display:flex;flex-direction:column;gap:4px}.bubble{position:relative;max-width:70%;align-self:flex-start;display:flex;flex-direction:column;padding:5px 9px;border-radius:12px;background:var(--bg);font-size:15px;line-height:1.3;word-wrap:break-word;overflow-wrap:anywhere;box-shadow:0 1px 1px #00000014}.bubble-own{align-self:flex-end;background:#effdde}.bubble-pending{opacity:.6}.bubble-failed{background:#ffe3e3}.bubble-content{white-space:pre-wrap}.bubble-meta{align-self:flex-end;display:inline-flex;align-items:center;gap:5px;margin-top:2px;font-size:11px;line-height:1;color:var(--text-muted);-webkit-user-select:none;user-select:none}.bubble-own .bubble-meta{color:#62a368}.bubble-status{letter-spacing:-1px}.bubble-actions{display:none;position:absolute;top:50%;right:calc(100% + 6px);transform:translateY(-50%);gap:10px;padding:4px 8px;white-space:nowrap;background:var(--bg);border-radius:14px;box-shadow:0 1px 6px #0000002e}.bubble-own:hover .bubble-actions{display:inline-flex}.bubble-actions button{border:none;background:none;color:var(--text-muted);font-size:12px;cursor:pointer;padding:0}.bubble-actions button:hover{color:var(--accent)}.bubble-image{display:block}.bubble-image img{display:block;max-width:280px;max-height:320px;width:auto;height:auto;border-radius:8px}.bubble-caption{display:block;margin-top:4px}.conv-attach{border:none;background:none;font-size:20px;cursor:pointer;padding:0 4px}.conv-attach:disabled{opacity:.4;cursor:default}.img-editor-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#0000008c;display:flex;align-items:center;justify-content:center}.img-editor{background:var(--bg);border-radius:12px;padding:16px;width:min(520px,92vw);display:flex;flex-direction:column;gap:12px}.img-editor-preview{display:flex;align-items:center;justify-content:center;min-height:240px;max-height:60vh;overflow:hidden;background:#f4f4f5;border-radius:8px}.img-editor-preview img{max-width:100%;max-height:60vh;object-fit:contain}.img-editor-controls{display:flex;align-items:center;gap:8px}.img-editor-controls input{flex:1;padding:9px 12px;border:1px solid var(--divider);border-radius:18px;outline:none;font-size:14px}.img-editor-controls input:focus{border-color:var(--accent)}.img-editor-controls button{border:none;border-radius:8px;padding:8px 14px;cursor:pointer;background:#f4f4f5;color:var(--text)}.img-editor-controls button[data-testid=image-send]{background:var(--accent);color:#fff}.img-editor-controls button:disabled{opacity:.5;cursor:default}.conv-editing{display:flex;align-items:center;justify-content:space-between;padding:6px 16px;background:#f4f4f5;border-top:1px solid var(--divider);font-size:13px;color:var(--text-muted)}.conv-editing button{border:none;background:none;color:var(--accent);cursor:pointer}.conv-input{display:flex;gap:8px;padding:10px 16px;background:var(--bg);border-top:1px solid var(--divider)}.conv-input input{flex:1;padding:10px 12px;border:1px solid var(--divider);border-radius:18px;outline:none;font-size:15px}.conv-input input:focus{border-color:var(--accent)}.conv-input button{padding:0 16px;border:none;border-radius:18px;background:var(--accent);color:#fff;cursor:pointer}.conv-input button:disabled{opacity:.5;cursor:default}.account-notices{position:fixed;top:12px;left:50%;transform:translate(-50%);z-index:100;display:flex;flex-direction:column;gap:8px;width:max-content;max-width:90vw}.account-notice{display:flex;align-items:flex-start;gap:12px;padding:10px 14px;border-radius:10px;background:#2b2b36;color:#fff;box-shadow:0 4px 16px #00000040}.account-notice-body{display:flex;flex-direction:column;gap:2px}.account-notice-text{font-size:14px}.account-notice-detail{font-size:12px;color:#fff9}.account-notice button{border:none;background:none;color:#fff9;font-size:18px;line-height:1;cursor:pointer;padding:0}.account-notice button:hover{color:#fff}.chat-list{display:flex;flex-direction:column;min-height:0;flex:1}.chat-list-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border-bottom:1px solid var(--divider)}.chat-list-bar-title{font-weight:600;font-size:15px}.chat-list-compose{width:34px;height:34px;border:none;border-radius:50%;background:var(--accent);color:#fff;font-size:22px;line-height:1;cursor:pointer}.new-chat-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#00000073;display:flex;align-items:flex-start;justify-content:center;padding-top:12vh}.new-chat-dialog{background:var(--bg);border-radius:12px;padding:16px;width:min(420px,92vw);display:flex;flex-direction:column;gap:12px}.new-chat-tabs{display:flex;align-items:center;gap:8px}.new-chat-tabs button{border:none;background:none;padding:6px 4px;font-size:15px;color:var(--muted, #707579);cursor:pointer;border-bottom:2px solid transparent}.new-chat-tabs button.is-active{color:var(--accent);border-bottom-color:var(--accent)}.new-chat-tabs .new-chat-close{margin-left:auto;font-size:14px;color:var(--muted, #707579)}.new-chat-form{display:flex;flex-direction:column;gap:10px}.new-chat-form input{padding:9px 12px;border:1px solid var(--divider);border-radius:18px;outline:none;font-size:14px}.new-chat-form input:focus{border-color:var(--accent)}.new-group-add{display:flex;gap:8px}.new-group-add input{flex:1}.new-group-add button{width:38px;border:none;border-radius:50%;background:#f4f4f5;color:var(--text);font-size:20px;cursor:pointer}.new-group-members{display:flex;flex-wrap:wrap;gap:6px}.group-member{display:inline-flex;align-items:center;gap:6px;padding:4px 6px 4px 10px;background:#f4f4f5;border-radius:14px;font-size:13px}.group-member button{border:none;background:none;color:var(--muted, #707579);cursor:pointer;font-size:12px;padding:0;line-height:1}.new-chat-form button[type=submit]{align-self:flex-end;border:none;border-radius:8px;padding:9px 16px;background:var(--accent);color:#fff;font-size:14px;cursor:pointer}.new-chat-form button[type=submit]:disabled{opacity:.5;cursor:default}.new-chat-error{margin:0;color:#d14836;font-size:13px}.chat-list-items{flex:1;overflow-y:auto;min-height:0}.chat-list-empty{padding:16px;color:var(--text-muted);text-align:center}.chat-item{position:relative;display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;align-items:center;column-gap:10px;row-gap:2px;width:100%;padding:8px 12px;border:none;background:none;text-align:left;cursor:pointer}.chat-item:hover{background:#f4f4f5}.chat-item:active{background:#ececed}.chat-item.is-selected{background:var(--accent);color:#fff}.chat-avatar{grid-column:1;grid-row:1 / span 2;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:19px;font-weight:600;flex-shrink:0}.chat-item-row{grid-column:2;display:flex;align-items:center;justify-content:space-between;gap:8px;min-width:0}.chat-item-top{grid-row:1}.chat-item-bottom{grid-row:2}.chat-item-title{font-weight:600;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-item-time{flex-shrink:0;font-size:12px;color:var(--text-muted)}.chat-item.is-selected .chat-item-time{color:#ffffffd9}.chat-item-preview{font-size:13px;color:var(--text-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chat-item.is-selected .chat-item-preview{color:#ffffffd9}.chat-item-unread{flex-shrink:0;min-width:20px;height:20px;padding:0 6px;border-radius:10px;background:var(--accent);color:#fff;font-size:12px;line-height:20px;text-align:center}.chat-item.is-selected .chat-item-unread{background:#fff;color:var(--accent)}.auth-card button[type=submit]:hover:not(:disabled),.conv-input button[type=submit]:hover:not(:disabled),.chat-list-compose:hover,.new-chat-form button[type=submit]:hover:not(:disabled){background:#2b7fd4}.auth-card button[type=submit]:active:not(:disabled),.conv-input button[type=submit]:active:not(:disabled),.chat-list-compose:active,.new-chat-form button[type=submit]:active:not(:disabled){background:#2674c2}.home-header button:hover,.conv-editing button:hover,.auth-link:hover{text-decoration:underline}@media(max-width:600px){.sidebar{width:100%;min-width:0;border-right:none}.home .conversation,.home--chat-open .sidebar{display:none}.home--chat-open .conversation{display:flex}.conv-back{display:inline-flex;align-items:center}.bubble{max-width:85%}.account-notices{width:92vw}}