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16px}.fsheet-group{padding:14px 0;border-bottom:1px solid var(--line-2)}.fsheet-group:last-child{border-bottom:none}.fsheet-gh{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--foam-faint);margin-bottom:8px}.filter-sheet-foot{flex:none;display:flex;align-items:center;gap:12px;padding:14px 18px calc(16px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}.filter-sheet-foot .btn{flex:1 1;justify-content:center}@media (max-width:768px){.book-controls{top:60px}.filter-row .fdrop{display:none}.filters-btn{display:inline-flex}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}