/* finesse · component refinement · inherited silver/teal tokens · 44px touch targets */
.topbar .cursor-toggle{display:inline-flex;align-items:center;justify-content:center;gap:7px;flex-shrink:0;min-height:44px;padding:6px 8px;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--muted);font:500 12px var(--font-platform);cursor:pointer;white-space:nowrap}
.trail-symbol{width:19px;height:19px;flex-shrink:0;color:var(--teal)}
.switch-track{display:block;position:relative;width:28px;height:17px;flex-shrink:0;background:var(--surface-subtle);border:1px solid var(--line);border-radius:12px;transition:background-color .15s}
.switch-track>span{position:absolute;left:2px;top:2px;width:11px;height:11px;border-radius:50%;background:var(--muted);transition:transform .15s,background-color .15s}
.cursor-toggle[aria-checked=true] .switch-track{background:var(--teal);border-color:var(--teal)}
.cursor-toggle[aria-checked=true] .switch-track>span{transform:translateX(11px);background:var(--surface)}
.topbar .cursor-toggle:disabled{opacity:.5;cursor:not-allowed}
.topbar .cursor-toggle:focus-visible,.topbar .login-link:focus-visible,.avatar-editor .button:focus-within{outline:2px solid var(--accent);outline-offset:3px}
.topbar .cursor-toggle:active:not(:disabled),.topbar .login-link:active{transform:translateY(1px)}
.topbar .login-link{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;max-width:190px;padding:6px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--line);color:var(--ink);font:600 13px var(--font-platform);text-decoration:none;overflow:hidden}
.topbar .login-link.is-signed-in{padding:5px 12px 5px 6px}
.header-avatar{display:block;width:32px;height:32px;border-radius:50%;object-fit:cover;flex-shrink:0;background:var(--surface-subtle);border:1px solid var(--line)}
.account-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.header-account{flex-shrink:0;gap:10px}
.account-layout .account-avatar{border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.avatar-editor{border-top:1px solid var(--line);padding-top:20px;margin-top:24px}
.avatar-editor h3{font-size:16px;margin-bottom:5px}
.avatar-editor .small{line-height:1.7}
.avatar-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:16px}
.avatar-controls .avatar-preview{width:64px;height:64px;object-fit:cover;border-radius:50%;border:1px solid var(--line);background:var(--surface-subtle);margin-right:4px}
.avatar-controls .button{margin:0;position:relative;min-height:44px;font-size:12px;cursor:pointer}
.avatar-file{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}
.avatar-controls [aria-disabled=true],.avatar-controls button:disabled{opacity:.5;cursor:not-allowed}
.avatar-status{min-height:3.4em;margin:12px 0 0;font-size:12px;color:var(--muted)}
.avatar-status[data-state=error]{color:#ac343b}.avatar-status[data-state=success]{color:var(--teal)}
.tools-admin-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:18px 0}
.tools-admin-toolbar .button{min-height:44px}
.tool-admin-row{align-items:center;gap:18px}.tool-admin-row p{min-width:0;overflow-wrap:anywhere}.tool-admin-row small{display:block;line-height:1.7}.tool-admin-row .button{flex-shrink:0}
.tool-admin-row .tool-admin-status{display:inline-block;margin-left:8px;font-size:11px;color:var(--muted);font-weight:400}
@media(hover:hover){.topbar .cursor-toggle:hover:not(:disabled){background:var(--surface-subtle);color:var(--ink)}.topbar .login-link:hover{border-color:var(--accent);background:var(--surface-subtle)}}
@media(min-width:981px) and (max-width:1200px){.topbar .nav,.academic-shell .topbar .nav{gap:13px}.topbar .login-link{max-width:145px}}
@media(max-width:980px){.topbar #cursorMotion{align-self:flex-start;margin:3px 4px}.topbar .login-link{max-width:180px}.header-account{margin-left:auto}}
@media(max-width:700px){.topbar .brand-home{display:inline}.topbar .login-link{max-width:130px;font-size:12px}.topbar .header-account{gap:7px}.header-avatar{width:28px;height:28px}.topbar .login-link.is-signed-in{padding:5px 9px 5px 5px;gap:7px}.avatar-controls{gap:8px}.avatar-controls .avatar-preview{width:56px;height:56px}.avatar-controls .button{font-size:12px;padding-inline:10px}}
@media(max-width:360px){.topbar .login-link{max-width:96px}.topbar .account-name{max-width:47px}.topbar .logo{font-size:17px;gap:6px}.topbar .brand-home{font-size:10px;padding-left:6px}.topbar .brand-symbol{width:27px;height:27px}.topbar .header-account{gap:5px}.topbar>.wrap{gap:7px}}
@media(prefers-reduced-motion:reduce){.switch-track,.switch-track>span{transition:none}}