.tk-undo-toast{position:fixed;z-index:100105;left:50%;bottom:max(20px,env(safe-area-inset-bottom));transform:translateX(-50%);display:flex;align-items:center;gap:12px;box-sizing:border-box;max-width:calc(100vw - 112px);width:max-content;padding:14px 16px;border-radius:16px;background:#163b43;color:white;box-shadow:0 8px 30px #0003;font-size:14px;line-height:1.5}
.tk-undo-toast[hidden],.tk-undo-toast [hidden]{display:none!important}.tk-undo-toast button{border:0;border-radius:8px;background:transparent;color:inherit;font:inherit;font-weight:600;cursor:pointer;min-height:40px;padding:4px 8px;white-space:nowrap}.tk-undo-toast button:not(.tk-undo-close){text-decoration:underline}.tk-undo-close{display:grid;place-items:center}.tk-undo-toast :focus-visible{outline:2px solid currentColor;outline-offset:2px}.tk-undo-toast button:disabled{opacity:.6}
.tk-favorite-pending{opacity:.6}.tk-favorite-icon{width:20px;height:20px;display:block}.tk-favorite-removed{opacity:.6}.tk-favorite-restored,.tk-list-returned{animation:tk-return-glow 1.4s ease-out}
.tkg-layout aside nav a[aria-current=location],.tkb-article [data-blog-toc] a[aria-current=location]{background:#00688712;color:#006887!important;box-shadow:inset 3px 0 #006887;border-radius:6px;font-weight:600}
.tk-reading-flash{background:#00688713;border-radius:6px;box-shadow:0 0 0 6px #00688713}.tkb-article [id],.tkg-layout article [id]{scroll-margin-top:var(--tk-reading-offset,100px)}
body.dark .tk-reading-flash{background:#8ad2df22;box-shadow:0 0 0 6px #8ad2df22}body.dark .tkg-layout aside nav a[aria-current=location],body.dark .tkb-article [data-blog-toc] a[aria-current=location]{background:#8ad2df18;color:#8ad2df!important;box-shadow:inset 3px 0 #8ad2df}
@keyframes tk-return-glow{0%{box-shadow:0 0 0 3px #0087a560}100%{box-shadow:0 0 0 0 transparent}}
@media(max-width:600px){.tk-undo-toast{max-width:calc(100vw - 32px);bottom:112px;flex-wrap:wrap;gap:4px 8px}.tk-undo-toast>span{flex:1 1 100%}}
@media(prefers-reduced-motion:reduce){.tk-favorite-restored,.tk-list-returned{animation:none}}
@media print{.tk-undo-toast{display:none!important}}
[data-blog-saved-card][hidden],.list-fav-posts li[hidden]{display:none!important}
[data-blog-save]{gap:8px;align-items:center}

/* Keep the marker clear of text and avoid movement when the active row changes. */
.tkg-layout aside nav a,.tkb-article [data-blog-toc] a{box-sizing:border-box;padding:6px 12px;margin-block:3px}
/* Programmatically focused section titles are not interactive controls. */
.tk-guide .tk-reading-target:focus,.tkb-article .tk-reading-target:focus{outline:none!important}

/* One contents-list layout for both guides and blog articles, at every width. */
.tk-guide .tkg-layout aside nav,.tkb-article .tkb-toc{display:block;box-sizing:border-box;border:0;border-left:2px solid #dce7e9;border-radius:0;padding:0 0 0 20px;gap:0}
.tk-guide .tkg-layout aside nav>strong,.tkb-article .tkb-toc>.tkb-label{display:block;margin:0 0 10px;padding:0;color:#203741;font-size:11px;font-weight:700;line-height:1.5;letter-spacing:1.2px;text-transform:uppercase}
.tkb-article .tkb-toc [data-blog-toc]{margin:0;padding:0;border:0}
.tk-guide .tkg-layout aside nav a,.tkb-article .tkb-toc [data-blog-toc] a{display:block;box-sizing:border-box;border:0;margin:4px 0;padding:5px 12px;font-size:13px;line-height:1.5;text-decoration:none;color:#576d75}
body.dark .tk-guide .tkg-layout aside nav,body.dark .tkb-article .tkb-toc{border-left-color:#36515a}
body.dark .tk-guide .tkg-layout aside nav>strong,body.dark .tkb-article .tkb-toc>.tkb-label{color:#e7f3f4}
body.dark .tk-guide .tkg-layout aside nav a,body.dark .tkb-article .tkb-toc [data-blog-toc] a{color:#a9bbc1}