.favorite-tab-toggle{color:#94a3b8;cursor:pointer;background:0 0;border:0;border-bottom:3px solid #0000;flex:none;justify-content:center;align-self:stretch;align-items:center;min-height:2.05rem;padding:.2rem .54rem .2rem .1rem;transition:color .16s,opacity .16s;display:inline-flex}.favorite-tab-toggle:hover,.favorite-tab-toggle:focus-visible{color:#475569}.favorite-tab-toggle:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.favorite-tab-toggle.is-selected{color:#2563eb}.favorite-tab-toggle-icon{width:1rem;height:1rem}.favorite-tab-toggle-end{margin-left:auto;padding-right:.12rem}.header-favorite{align-items:center;display:flex;position:relative}.header-favorite-button{color:#64748b;cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;width:2.1rem;height:2.1rem;transition:color .18s,opacity .18s;display:inline-flex;position:relative}.header-favorite-button:hover,.header-favorite-button:focus-visible{color:#2563eb;opacity:.96}.header-favorite-button:focus-visible{outline-offset:2px;outline:3px solid #42a5f547}.header-favorite-button.is-active{color:#2563eb}.header-favorite-button-icon{width:1.16rem;height:1.16rem}.header-favorite-panel{top:calc(100% + var(--header-popup-offset,.9rem));z-index:calc(var(--z-header,90) + 20);border:1px solid var(--header-popup-border,#d6e0ecf2);border-radius:var(--header-popup-radius,1.35rem);background:var(--header-popup-background,#fffffffa);width:min(16.5rem,100vw - 1.5rem);box-shadow:var(--header-popup-shadow,0 24px 50px #0f172a1f);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);gap:.72rem;padding:1rem;display:grid;position:absolute;right:0}.header-favorite-panel:before{content:"";top:-.5rem;right:var(--header-popup-arrow-right,1rem);border-top:1px solid var(--header-popup-border,#d6e0ecf2);border-left:1px solid var(--header-popup-border,#d6e0ecf2);background:var(--header-popup-background,#fffffffa);width:1rem;height:1rem;position:absolute;transform:rotate(45deg)}.header-favorite-panel-header{justify-content:space-between;align-items:flex-start;gap:.8rem;display:flex}.header-favorite-panel-copy{gap:.18rem;display:grid}.header-favorite-panel-title{color:#0f172a;margin:0;font-size:.92rem;font-weight:700;line-height:1.25}.header-favorite-panel-meta{color:#64748b;letter-spacing:.04em;margin:0;font-size:.72rem;font-weight:700}.header-favorite-list{gap:.18rem;display:grid}.header-favorite-item{color:#1e293b;text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;gap:.46rem;width:100%;padding:.38rem .04rem .38rem .08rem;transition:color .16s,background-color .16s;display:flex}.header-favorite-item:hover,.header-favorite-item:focus-visible{color:#0f5db3;background:#2563eb0f}.header-favorite-item:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.header-favorite-item-icon{color:#2563eb;width:.94rem;height:.94rem}.header-favorite-item-label{min-width:0;color:inherit;word-break:keep-all;font-size:.78rem;font-weight:700;line-height:1.35}.header-favorite-empty{color:#64748b;margin:0;font-size:.78rem;line-height:1.55}.header-favorite-pagination{flex-wrap:wrap;justify-content:center;align-items:center;gap:.58rem;width:100%;margin-top:.18rem;display:flex}.header-favorite-pagination .problem-page-button{min-width:auto;min-height:auto;box-shadow:none;color:#64748b;background:0 0;border:0;border-radius:0;padding:.14rem .22rem;font-size:.78rem;font-weight:700}.header-favorite-pagination .problem-page-button:disabled{box-shadow:none;background:0 0;border:0}.header-favorite-pagination .problem-pagination-meta{color:#64748b;letter-spacing:.02em;text-align:center;font-variant-numeric:tabular-nums;min-width:4rem;font-size:.78rem;font-weight:700}.header-favorite-pagination .problem-pagination-meta-button{box-shadow:none;cursor:pointer;background:0 0;border:0;padding:0}.header-favorite-pagination .problem-pagination-meta-input{color:#0f172a;text-align:center;font-variant-numeric:tabular-nums;background:#fff;border:1px solid #d7e2ef;border-radius:.42rem;width:4rem;min-height:1.4rem;padding:0 .24rem;font-size:.74rem;font-weight:700;line-height:1}.header-favorite-pagination .problem-pagination-meta-input:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}@media (width<=639px){.header-favorite-panel{top:var(--header-mobile-popup-top,4.2rem);right:var(--header-mobile-popup-edge,.58rem);width:min(var(--header-mobile-popup-width,14.75rem), calc(100vw - var(--header-mobile-popup-space,1.16rem)));max-height:min(24rem, calc(100dvh - var(--header-marquee-height,1.58rem) - 3.9rem));overscroll-behavior:contain;gap:.58rem;padding:.86rem;position:fixed;overflow-y:auto}.header-favorite-panel:before{display:none}}@media (prefers-color-scheme:dark){.favorite-tab-toggle{color:var(--ink-subtle)}.favorite-tab-toggle:hover,.favorite-tab-toggle:focus-visible{color:#dbeafe}.favorite-tab-toggle.is-selected{color:#60a5fa}.header-favorite-button{color:#93a5c4}.header-favorite-button:hover,.header-favorite-button:focus-visible,.header-favorite-button.is-active{color:#93c5fd}.header-favorite-panel{border-color:var(--header-popup-border,var(--line-soft));background:var(--header-popup-background,#09111df5);box-shadow:var(--header-popup-shadow,0 18px 38px #02061773)}.header-favorite-panel:before{border-top-color:var(--header-popup-border,var(--line-soft));border-left-color:var(--header-popup-border,var(--line-soft));background:var(--header-popup-background,#09111df5)}.header-favorite-panel-title{color:#f8fafc}.header-favorite-panel-meta,.header-favorite-empty{color:var(--ink-subtle)}.header-favorite-item{color:#e2e8f0}.header-favorite-item:hover,.header-favorite-item:focus-visible{color:#bfdbfe;background:#2563eb29}.header-favorite-item-icon{color:#60a5fa}}