.header-account{position:relative;display:flex;align-items:center;gap:12px;flex-shrink:0}.header-balance{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:7px 13px;border:1px solid var(--accent-border);border-radius:24px;background:var(--accent-soft);color:var(--accent-hover);font-size:13px;font-weight:600;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;white-space:nowrap}.header-balance:hover{background:var(--surface-hover)}.header-avatar{display:grid;place-items:center;width:36px;height:36px;border:1px solid var(--accent-border);border-radius:50%;background:var(--panel);color:var(--accent-hover);font-size:14px;font-weight:650}.header-avatar:hover,.header-avatar[aria-expanded=true]{box-shadow:0 0 0 3px var(--accent-soft);border-color:var(--accent)}.account-dropdown{position:absolute;right:0;top:calc(100% + 12px);width:230px;max-width:calc(100vw - 24px);padding:7px;border:1px solid var(--line-strong);border-radius:14px;background:var(--panel);box-shadow:0 16px 40px #0006;z-index:110}.account-dropdown-name{padding:12px 10px 15px;margin-bottom:5px;border-bottom:1px solid var(--line);font-size:13px;font-weight:650;overflow-wrap:anywhere}.account-dropdown [role=menuitem]{display:flex;align-items:center;gap:11px;width:100%;padding:12px 10px;border-radius:8px;background:transparent;color:var(--secondary);font-size:13px;text-align:left}.account-dropdown [role=menuitem]:focus-visible,.account-dropdown [role=menuitem]:hover{background:var(--surface-hover);color:var(--text)}.account-dropdown [role=menuitem][aria-current=page]{background:var(--accent-soft);color:var(--accent-hover)}.account-dropdown [role=menuitem] svg{flex-shrink:0}.account-dropdown [role=menuitem]:disabled{opacity:.5;cursor:default}.account-dropdown-divider{height:1px;background:var(--line);margin:5px 7px}.sidebar-account{position:relative;width:100%}.sidebar-account-trigger{display:flex;align-items:center;gap:10px;width:100%;min-height:48px;padding:9px;border:1px solid transparent;border-radius:10px;background:transparent;color:var(--secondary);text-align:left;cursor:pointer}.sidebar-account-trigger:hover,.sidebar-account-trigger[aria-expanded=true]{background:var(--surface-hover);border-color:var(--line)}.sidebar-account-name{flex:1 1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}.sidebar-account-chevron{flex-shrink:0;color:var(--muted);transition:transform .15s}.sidebar-account-trigger[aria-expanded=true] .sidebar-account-chevron{transform:rotate(180deg)}.sidebar-account .account-dropdown{top:auto;bottom:calc(100% + 8px);left:0;right:auto;width:248px;max-width:calc(100vw - 64px);max-height:calc(100dvh - 100px);overflow-y:auto;overscroll-behavior:contain}.header-avatar:focus-visible,.sidebar-account-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media(min-width:681px){.chat-site-shell.rail-collapsed .sidebar-account-chevron,.chat-site-shell.rail-collapsed .sidebar-account-name{display:none}.chat-site-shell.rail-collapsed .sidebar-account-trigger{justify-content:center;padding:6px 0}}@media(prefers-reduced-motion:reduce){.sidebar-account-chevron{transition:none}}.account-dropdown p{padding:0 10px;color:var(--danger);font-size:12px}.topbar:has(.header-account) .preview-badge{display:none}@media(max-width:680px){.header-account{gap:9px}.header-balance{padding:6px 10px;gap:6px}.topbar:has(.header-account) .wordmark-text{display:none}.topbar:has(.header-account) .topbar-right{gap:10px}}@media(max-width:380px){.header-account{gap:6px}.header-balance{padding:6px 7px;gap:5px;font-size:12px}.topbar:has(.header-account) .topbar-right{gap:6px}}