.books-intro{padding:24px 0 28px}.books-intro .eyebrow{margin-bottom:10px}.books-intro h1{letter-spacing:-1.5px;font-size:clamp(28px,4vw,42px);font-weight:580;line-height:1.15}.book-search{width:100%}.books-toolbar{color:var(--muted);justify-content:space-between;align-items:center;gap:8px;padding:16px 0;font-size:12px;display:flex}.books-toolbar>div{align-items:center;gap:12px;min-width:0;display:flex}@media (max-width:370px){.books-toolbar>div{gap:4px}.books-toolbar select{max-width:112px}}@media (min-width:1100px){.books-feed{grid-template-columns:minmax(0,1fr) minmax(0,420px);align-items:center;column-gap:clamp(24px,4vw,80px);display:grid}.books-feed>:not(.shelf-navigation):not(.book-search){grid-column:1/-1}.books-feed .shelf-navigation{margin:0}.books-feed .book-search{justify-self:end}.books-feed .book-search input{height:42px}}.shelf-navigation{z-index:2;align-items:center;min-width:0;height:48px;margin:8px 0 18px;display:flex;position:relative}.shelf-trigger{width:min(100%,216px);min-height:44px;color:var(--text);text-align:left;border-radius:16px;justify-content:space-between;align-items:center;gap:24px;padding:0 16px;font-size:13px;font-weight:550;transition:border-color .18s,box-shadow .18s;display:flex}.shelf-trigger svg{color:var(--muted);flex-shrink:0;transition:transform .24s cubic-bezier(.22,1,.36,1)}.shelf-trigger[aria-expanded=true]{border-color:var(--control-edge)}.shelf-trigger[aria-expanded=true] svg{transform:rotate(180deg)}.shelf-menu{--material-blur:28px;transform-origin:24px 0;border-radius:22px;width:min(300px,100vw - 48px);padding:6px;animation:.24s cubic-bezier(.22,1,.36,1) both shelf-unfold;position:absolute;top:calc(100% + 6px);left:0}.shelf-menu[data-closing=true]{pointer-events:none;animation:.18s both shelf-fold}.shelf-menu button{text-align:left;width:100%;min-height:46px;color:var(--muted);border-radius:15px;justify-content:space-between;align-items:center;gap:16px;padding:0 14px;font-size:13px;transition:background-color .14s,color .14s;display:flex}.shelf-menu button[aria-checked=true]{background:var(--nav-selection);color:var(--text);font-weight:550}.shelf-menu button:focus-visible,.shelf-trigger:focus-visible{outline:2px solid var(--accent);outline-offset:2px}@media (hover:hover){.shelf-menu button:hover{background:var(--nav-selection);color:var(--text)}.shelf-trigger:hover{border-color:var(--control-edge)}}@keyframes shelf-unfold{0%{opacity:0;transform:translateY(-6px)scale(.97)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes shelf-fold{to{opacity:0;transform:translateY(-4px)scale(.98)}}@media (prefers-reduced-motion:reduce){.shelf-menu,.shelf-menu[data-closing=true]{animation:none}.shelf-trigger,.shelf-trigger svg,.shelf-menu button{transition:none}}