.app{background:var(--birch);height:100vh;display:flex}.sidebar{background:var(--warm-white);border-right:1px solid var(--rust-10);flex-direction:column;flex-shrink:0;gap:14px;width:260px;padding:16px 12px;display:flex}.new-chat{border-radius:var(--border-radius-pill);border:1.5px solid var(--carrot);color:var(--carrot-accessible);background:var(--white);cursor:pointer;transition:all var(--transition-fast);font-size:14px;font-weight:600;font-family:var(--font-body);justify-content:center;align-items:center;gap:8px;padding:10px 14px;display:flex}.new-chat:hover{background:var(--carrot);color:var(--white);border-color:var(--carrot)}.thread-group{letter-spacing:.08em;text-transform:uppercase;color:var(--camel);margin:6px 8px 0;font-size:12px;font-weight:600}.thread-list{flex-direction:column;flex:1;gap:2px;min-height:0;display:flex;overflow-y:auto}.thread-row{align-items:center;gap:4px;display:flex}.thread-item{min-width:0;color:var(--rust);cursor:pointer;white-space:nowrap;text-overflow:ellipsis;text-align:left;font-size:14px;font-family:var(--font-body);background:0 0;border:none;border-radius:10px;flex:1;padding:9px 10px;overflow:hidden}.thread-item:hover{background:var(--gold-20)}.thread-item.active{background:var(--gold-20);font-weight:600}.thread-delete{width:26px;height:26px;color:var(--camel);cursor:pointer;background:0 0;border:none;border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.thread-delete:hover{background:var(--rust-10);color:var(--rust)}.main{flex-direction:column;flex:1;min-width:0;display:flex;position:relative}.topbar{border-bottom:1px solid var(--rust-10);background:var(--birch);flex-shrink:0;align-items:center;gap:10px;height:60px;padding:0 16px;display:flex}.coach-pill{border-radius:var(--border-radius-pill);background:var(--white);border:1px solid var(--rust-10);align-items:center;gap:8px;padding:7px 14px;font-size:14px;display:flex}.coach-pill b{color:var(--carrot-accessible)}.spacer{flex:1}.thread-scroll{flex:1;padding:24px 16px;overflow-y:auto}.thread-inner{flex-direction:column;gap:18px;max-width:680px;margin:0 auto;display:flex}.empty-state{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:22px;padding:24px;display:flex}.wordmark{font-family:var(--font-headline);color:var(--rust);font-size:26px}.wordmark span{color:var(--carrot)}.empty-state h1{font-size:28px;font-family:var(--font-headline);margin:0}.empty-state p{color:var(--camel);text-align:center;max-width:420px;margin:0;font-size:15px}.openers{grid-template-columns:1fr 1fr;gap:12px;width:min(640px,90%);display:grid}.opener{text-align:left;border:1px solid var(--rust-10);background:var(--white);cursor:pointer;color:var(--rust);transition:all var(--transition-fast);font-size:14px;font-family:var(--font-body);border-radius:14px;padding:16px}.opener:hover{border-color:var(--carrot);box-shadow:var(--shadow-sm);transform:translateY(-2px)}.bubble-row{align-items:flex-start;gap:10px;display:flex}.bubble-row.human{justify-content:flex-end}.avatar{background:var(--gold);width:32px;height:32px;color:var(--rust);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.bubble{white-space:pre-wrap;border-radius:22px;max-width:70%;padding:12px 18px;font-size:15px;line-height:1.5}.bubble.human{background:var(--rust);color:var(--birch);border-bottom-right-radius:6px}.bubble.assistant{background:var(--white);border:1px solid var(--rust-10);box-shadow:var(--shadow-sm);border-bottom-left-radius:6px}.widget-wrap{margin-top:8px;margin-left:42px}.msg-actions{gap:2px;margin-top:4px;margin-left:42px;display:flex}.msg-action-btn{cursor:pointer;width:28px;height:28px;color:var(--camel);transition:background var(--transition-fast),color var(--transition-fast);background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;display:flex}.msg-action-btn:hover{background:var(--rust-10);color:var(--rust)}.msg-action-btn:disabled{opacity:.4;cursor:not-allowed}.msg-action-btn.up-active{color:var(--success)}.msg-action-btn.down-active{color:var(--error)}.msg-action-btn.branch-active{color:var(--carrot-accessible)}.sidebar-footer{margin-top:auto;position:relative}.user-row{cursor:pointer;transition:background var(--transition-fast);text-align:left;width:100%;font-family:var(--font-body);background:0 0;border:none;border-radius:12px;align-items:center;gap:10px;padding:10px;display:flex}.user-row:hover{background:var(--gold-20)}.user-avatar{background:var(--carrot);width:32px;height:32px;color:var(--white);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.user-info{flex:1;min-width:0}.user-name{color:var(--rust);white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.user-email{color:var(--camel);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.user-menu{background:var(--white);border:1px solid var(--rust-10);box-shadow:var(--shadow-md);z-index:20;border-radius:12px;padding:6px;position:absolute;bottom:calc(100% + 6px);left:0;right:0}.user-menu-item{width:100%;color:var(--rust);cursor:pointer;text-align:left;font-size:14px;font-family:var(--font-body);background:0 0;border:none;border-radius:8px;align-items:center;gap:8px;padding:9px 10px;display:flex}.user-menu-item:hover{background:var(--gold-20)}.user-menu-note{color:var(--camel);white-space:nowrap;text-overflow:ellipsis;padding:9px 10px;font-size:13px;display:block;overflow:hidden}.user-menu-divider{background:var(--rust-10);height:1px;margin:4px 6px}.user-menu-backdrop{z-index:15;cursor:default;background:0 0;border:none;position:fixed;inset:0}.composer-wrap{background:var(--birch);padding:14px 16px 20px}.composer{background:var(--white);border:1px solid var(--rust-10);max-width:720px;box-shadow:var(--shadow-md);border-radius:24px;margin:0 auto}.composer textarea{resize:none;width:100%;font-family:var(--font-body);color:var(--rust);background:0 0;border:none;outline:none;padding:14px 18px 6px;font-size:15px}.composer textarea::placeholder{color:var(--camel)}.composer-actions{justify-content:space-between;align-items:center;padding:6px 10px 10px;display:flex}.composer-left{align-items:center;gap:6px;display:flex}.send-btn{background:var(--carrot);width:34px;height:34px;color:var(--white);cursor:pointer;transition:background var(--transition-fast);border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}.send-btn:hover{background:var(--carrot-dark)}.send-btn:disabled{background:var(--rust-10);color:var(--camel);cursor:not-allowed}.icon-btn{cursor:pointer;width:36px;height:36px;color:var(--rust);transition:background var(--transition-fast);background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;display:flex}.icon-btn:hover{background:var(--rust-10)}.banner{border-radius:12px;max-width:720px;margin:0 auto 10px;padding:10px 14px;font-size:14px}.banner-error{background:var(--white);border:1px solid var(--error);color:var(--error)}.banner-erase{background:var(--gold-20);border:1px solid var(--rust-10);color:var(--rust)}.inline-note{color:var(--error);margin:4px 0 0 42px;font-size:13px}