:root{--color-primary: #2f80ed;--color-background: #ffffff;--color-surface: #f5f5f5;--color-text: #111111;--color-text-secondary: #666666;--color-border: #e0e0e0;--color-bubble-own: #2f80ed;--color-bubble-other: #f5f5f5}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--color-background);color:var(--color-text)}button{cursor:pointer;font-family:inherit}.avatar{display:flex;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-weight:600;flex-shrink:0}.bubble-own,.bubble-other{max-width:75%;padding:9px 13px;border-radius:16px;word-break:break-word;white-space:pre-wrap;box-shadow:0 1px 1px #00000014}.bubble-own{background:var(--color-bubble-own);color:#fff;margin-left:auto}.bubble-other{background:var(--color-bubble-other);color:var(--color-text);margin-right:auto;border:1px solid var(--color-border)}.bubble-own.tail{border-bottom-right-radius:4px}.bubble-other.tail{border-bottom-left-radius:4px}.message-sender-name{font-size:12px;font-weight:600;color:var(--color-primary);margin-bottom:2px}.bubble-time{display:block;font-size:13px;margin-top:2px;text-align:right}.btn-primary{background:var(--color-primary);color:#fff;border:none;border-radius:8px;padding:8px 16px;font-size:14px}.btn-icon{background:var(--color-primary);color:#fff;border:none;border-radius:50%;width:40px;height:40px;font-size:16px;display:flex;align-items:center;justify-content:center}.chat-list-item{display:flex;align-items:center;gap:12px;padding:10px 12px;width:100%;text-align:left;background:transparent;border:none;border-bottom:1px solid var(--color-border);color:var(--color-text)}.chat-list-item.active{background:var(--color-surface);box-shadow:inset 3px 0 0 var(--color-primary)}.chat-item-delete{background:none;border:none;color:var(--color-text-secondary);cursor:pointer;font-size:15px;padding:4px 6px;opacity:0;transition:opacity .15s}.chat-list-item:hover .chat-item-delete,.chat-list-item:focus-within .chat-item-delete{opacity:1}.accent-swatch{width:32px;height:32px;border-radius:50%;border:2px solid transparent;cursor:pointer}.accent-swatch.selected{border-color:var(--color-text)}.message-row{position:relative;display:flex;flex-direction:column;margin:1px 0}.message-row.group-start{margin-top:8px}.message-row.own{align-items:flex-end}.message-row.other{align-items:flex-start}.message-menu-btn{background:none;border:none;font-size:14px;opacity:0;cursor:pointer;padding:0 4px;align-self:inherit;transition:opacity .15s}.message-row:hover .message-menu-btn,.message-menu-btn:focus-visible,.message-menu-btn.open{opacity:1}.message-actions-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:2px 0 4px;padding:6px 10px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:10px;font-size:13px}.message-actions-row button{background:none;border:none;color:var(--color-text);font-size:13px;cursor:pointer;padding:2px 4px}.reaction-picker-row{display:flex;gap:6px;width:100%}.reaction-picker-row button{font-size:18px;background:none;border:none;cursor:pointer;padding:2px}.reaction-pills{display:flex;gap:4px;flex-wrap:wrap;margin-top:3px}.reaction-pill{font-size:12px;border-radius:10px;padding:1px 7px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);cursor:pointer}.reaction-pill.active{border:2px solid var(--color-primary);font-weight:600}.reply-quote{border-left:3px solid rgba(255,255,255,.6);padding:2px 8px;margin-bottom:4px;font-size:12px;opacity:.85}.bubble-other .reply-quote{border-left-color:var(--color-primary)}.forwarded-label{font-size:11px;opacity:.75;margin-bottom:2px}.message-deleted{font-style:italic;opacity:.7}.composer-input{flex:1;padding:10px 14px;border-radius:20px;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);font-family:inherit;font-size:14px;line-height:1.4;resize:none;overflow-y:auto;max-height:120px}.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 12px;font-size:13px;background:var(--color-surface);border-top:1px solid var(--color-border)}.composer-bar-cancel{background:none;border:none;font-size:15px;cursor:pointer;color:var(--color-text)}.attach-btn{background:none;border:none;font-size:20px;cursor:pointer;color:var(--color-text)}.attachment-file-link{display:flex;align-items:center;gap:6px;text-decoration:none;color:inherit;font-size:13px}.typing-indicator{font-size:12px;color:var(--color-text-secondary)}.attachment-image-btn{display:block;background:none;border:none;padding:0;cursor:zoom-in}.lightbox-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000e6;display:flex;align-items:center;justify-content:center;z-index:1100}.lightbox-image{max-width:92vw;max-height:92vh;object-fit:contain;border-radius:4px}.lightbox-arrow,.lightbox-close{position:absolute;display:flex;align-items:center;justify-content:center;background:#ffffff24;color:#fff;border:none;border-radius:50%;cursor:pointer;line-height:1}.lightbox-arrow:hover,.lightbox-close:hover{background:#ffffff47}.lightbox-arrow{top:50%;transform:translateY(-50%);width:44px;height:44px;font-size:28px;padding-bottom:4px}.lightbox-arrow.prev{left:16px}.lightbox-arrow.next{right:16px}.lightbox-close{top:16px;right:16px;width:40px;height:40px;font-size:18px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:16px}.modal-content{background:var(--color-background);border-radius:12px;max-width:420px;width:100%;max-height:70vh;overflow-y:auto;padding:12px}.modal-content h3{margin:4px 4px 12px;font-size:16px}