/* ARK Pet Care Library — Apple Newsroom / Apple Books inspired reader. Uses tokens from style.css :root. */
.lib{--lib-read:42rem;--lib-wide:72rem;--lib-gutter:clamp(1rem,4vw,2.5rem);--lib-line:rgba(26,40,48,.1);
  --tone-coral:linear-gradient(150deg,#c06252 0%,#d8907a 100%);
  --tone-amber:linear-gradient(150deg,#86672a 0%,#b8954f 100%);
  --tone-sage:linear-gradient(150deg,#2f6b78 0%,#7abdc8 100%);
  --tone-ocean:linear-gradient(150deg,#1c3d4a 0%,#3a7d8c 100%);
  --tone-kelp:linear-gradient(150deg,#14303b 0%,#1e5060 60%,#3a7d8c 100%);
  background:var(--paper,#fbf9f2);color:var(--ink,#1a2830);font-family:var(--font-body);padding-top:clamp(5.5rem,10vw,7.5rem);padding-bottom:4rem}
.lib *{box-sizing:border-box}
.lib-card,.lib-product,.lib-lc,.lib-crumbs a,.lib-byline-name{color:inherit}
.lib-eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--sage,#3a7d8c)}
.tone-text-coral{color:#b05445}.tone-text-amber{color:#94712f}.tone-text-sage,.tone-text-ocean{color:#2f6b78}.tone-text-kelp{color:#1e5060}

/* ---------- covers (Apple Books style typographic covers) ---------- */
.lib-cover{box-sizing:border-box;font-family:var(--font-body);position:relative;overflow:hidden;aspect-ratio:16/10;border-radius:18px;padding:clamp(1rem,3.5%,1.6rem);display:flex;flex-direction:column;justify-content:flex-end;color:#fbf9f2;isolation:isolate}
.lib-cover.tone-coral{background:var(--tone-coral,linear-gradient(150deg,#c06252,#d8907a))}
.lib-cover.tone-amber{background:var(--tone-amber,linear-gradient(150deg,#86672a,#b8954f))}
.lib-cover.tone-sage{background:var(--tone-sage,linear-gradient(150deg,#2f6b78,#7abdc8))}
.lib-cover.tone-ocean{background:var(--tone-ocean,linear-gradient(150deg,#1c3d4a,#3a7d8c))}
.lib-cover.tone-kelp{background:var(--tone-kelp,linear-gradient(150deg,#14303b,#1e5060 60%,#3a7d8c))}
.lib-cover::after{content:"";position:absolute;inset:0;z-index:-1;background:radial-gradient(120% 90% at 85% 10%,rgba(255,255,255,.22),transparent 55%)}
.lib-glyph{position:absolute;right:-6%;top:-10%;width:62%;height:auto;fill:none;stroke:rgba(251,249,242,.28);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;z-index:-1}
.lib-cover-cat{font-size:.68rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;opacity:.85;margin-bottom:.35rem}
.lib-cover-title{font-family:var(--font-display);font-size:clamp(1.15rem,2.4vw,1.6rem);line-height:1.08;max-width:85%;text-wrap:balance}
.lib-cover-mark{position:absolute;top:clamp(.9rem,3%,1.3rem);left:clamp(1rem,3.5%,1.6rem);font-size:.68rem;font-weight:600;letter-spacing:.3em;opacity:.75}
.lib-cover--og{width:100vw;height:100vh;aspect-ratio:auto;border-radius:0;padding:72px 80px}
.lib-cover--og .lib-cover-cat{font-size:22px;margin-bottom:18px}
.lib-cover--og .lib-cover-title{font-size:76px;max-width:900px;line-height:1.04}
.lib-cover--og .lib-cover-mark{font-size:22px;top:64px;left:80px}
.lib-cover--og .lib-glyph{width:560px;right:-40px;top:-60px;stroke-width:1.6}

/* ---------- index ---------- */
.lib-index-head,.lib-chips,.lib-feature,.lib-grid,.lib-shelf{max-width:var(--lib-wide);margin-inline:auto;padding-inline:var(--lib-gutter)}
.lib-index-head{padding-block:1rem 1.5rem}
.lib-index-head h1{font-family:var(--font-display);font-weight:400;font-size:clamp(2.6rem,7vw,4.6rem);line-height:1;letter-spacing:-.02em;margin:.4rem 0 1rem}
.lib-index-head h1 em{font-style:italic;color:var(--sage,#3a7d8c)}
.lib-dek{font-size:clamp(1.12rem,2.2vw,1.35rem);line-height:1.45;color:var(--ink-soft,#3a4d58);max-width:40rem;margin:0}
.lib-chips{display:flex;gap:.5rem;overflow-x:auto;scrollbar-width:none;padding-block:.5rem 1.5rem;-webkit-overflow-scrolling:touch}
.lib-chips::-webkit-scrollbar{display:none}
.lib-chip{flex:0 0 auto;font:inherit;font-size:.92rem;padding:.55rem 1rem;border-radius:999px;border:1px solid var(--lib-line);background:#fff;color:var(--ink,#1a2830);cursor:pointer;transition:background .2s,color .2s,border-color .2s}
.lib-chip:hover{border-color:var(--sage,#3a7d8c)}
.lib-chip.is-active{background:var(--ink,#1a2830);color:var(--paper,#fbf9f2);border-color:var(--ink,#1a2830)}
.lib-chip:focus-visible,.lib-card:focus-visible,.lib-product:focus-visible,.lib-lc:focus-visible{outline:3px solid var(--sage,#3a7d8c);outline-offset:3px}

.lib-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,19rem),1fr));gap:clamp(1.25rem,2.5vw,2rem)}
.lib-grid--3{grid-template-columns:repeat(auto-fill,minmax(min(100%,17rem),1fr));padding-inline:0}
.lib-card{display:flex;flex-direction:column;text-decoration:none;background:#fff;border-radius:22px;overflow:hidden;box-shadow:0 1px 2px rgba(26,40,48,.05),0 8px 28px rgba(26,40,48,.06);transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.lib-card[hidden]{display:none}
.lib-card .lib-cover{border-radius:0}
.lib-card-body{display:flex;flex-direction:column;gap:.45rem;padding:1.15rem 1.25rem 1.35rem;flex:1}
.lib-card h3{font-family:var(--font-display);font-weight:400;font-size:1.28rem;line-height:1.2;margin:0;text-wrap:balance}
.lib-card p{margin:0;color:var(--ink-soft,#3a4d58);font-size:.96rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.lib-meta{margin-top:auto;padding-top:.4rem;font-size:.8rem;color:rgba(26,40,48,.6)}
@media (hover:hover){.lib-card:hover{transform:translateY(-4px);box-shadow:0 2px 4px rgba(26,40,48,.06),0 18px 40px rgba(26,40,48,.1)}}
.lib-feature{margin-bottom:clamp(1.5rem,3vw,2.5rem)}
@media (min-width:900px){
  .lib-card--featured{display:grid;grid-template-columns:1.35fr 1fr}
  .lib-card--featured .lib-cover{aspect-ratio:auto;min-height:24rem;padding:2.2rem}
  .lib-card--featured .lib-cover-title{font-size:2.3rem;max-width:80%}
  .lib-card--featured .lib-card-body{justify-content:center;padding:2.5rem}
  .lib-card--featured h3{font-size:clamp(1.8rem,2.6vw,2.4rem)}
  .lib-card--featured p{-webkit-line-clamp:4;font-size:1.06rem}
}

/* ---------- article ---------- */
.lib-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1001;background:var(--sage,#3a7d8c);transform-origin:0 50%;transform:scaleX(0);pointer-events:none}
@supports (animation-timeline:scroll()){.lib-progress{animation:lib-grow linear both;animation-timeline:scroll(root)}}
@keyframes lib-grow{to{transform:scaleX(1)}}
.lib-article-head,.lib-reading{max-width:calc(var(--lib-read) + 2*var(--lib-gutter));margin-inline:auto;padding-inline:var(--lib-gutter)}
.lib-crumbs{display:flex;flex-wrap:wrap;gap:.45rem;font-size:.85rem;color:rgba(26,40,48,.6);margin-bottom:1.6rem}
.lib-crumbs a{text-decoration:none}.lib-crumbs a:hover{text-decoration:underline}
.lib-article-head h1{font-family:var(--font-display);font-weight:400;font-size:clamp(2.1rem,5.4vw,3.5rem);line-height:1.06;letter-spacing:-.015em;margin:.55rem 0 1rem;text-wrap:balance}
.lib-byline{display:flex;align-items:center;gap:.8rem;margin-top:1.6rem;padding-top:1.2rem;border-top:1px solid var(--lib-line)}
.lib-byline div{display:flex;flex-direction:column;gap:.15rem}
.lib-byline-name{font-weight:600;text-decoration:none}
.lib-byline span{font-size:.85rem;color:rgba(26,40,48,.62)}
.lib-avatar{width:44px;height:44px;border-radius:50%;object-fit:cover;flex:0 0 auto}
.lib-avatar--initials{display:inline-grid;place-items:center;background:var(--sage-deep,#1c3d4a);color:var(--paper,#fbf9f2);font-weight:600;font-size:.95rem;letter-spacing:.04em}
.lib-reviewed{display:inline-flex;align-items:center;gap:.45rem;margin:.9rem 0 0;font-size:.85rem;color:#2f6b78;background:rgba(58,125,140,.08);padding:.4rem .75rem;border-radius:999px}
.lib-reviewed svg{width:16px;height:16px;fill:rgba(58,125,140,.18);stroke:#2f6b78;stroke-width:1.6;stroke-linejoin:round;stroke-linecap:round}
.lib-hero{max-width:calc(64rem + 2*var(--lib-gutter));margin:clamp(1.8rem,4vw,3rem) auto;padding-inline:var(--lib-gutter)}
.lib-hero img{display:block;width:auto;max-width:100%;margin-inline:auto;height:auto;max-height:82vh;border-radius:clamp(14px,2vw,26px);background:var(--cream-warm,#f3ece1)}
.lib-takeaways{background:var(--cream-warm,#f3ece1);border-radius:20px;padding:1.4rem 1.5rem 1.2rem;margin:0 0 2.4rem}
.lib-takeaways h2{font-family:var(--font-body);font-size:.8rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--sage-deep,#1c3d4a);margin:0 0 .8rem}
.lib-takeaways ul{margin:0;padding-left:1.15rem;display:grid;gap:.55rem}
.lib-takeaways li{font-size:1.02rem;line-height:1.5}

.lib-body{font-size:clamp(1.07rem,1.6vw,1.2rem);line-height:1.68;color:#22333c;overflow-wrap:break-word}
.lib-body p{margin:0 0 1.25em}
.lib-body h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.55rem,3vw,2rem);line-height:1.18;margin:2.2em 0 .7em;color:var(--ink,#1a2830);text-wrap:balance}
.lib-body h3{font-family:var(--font-body);font-weight:650;font-size:1.12em;line-height:1.35;margin:1.9em 0 .55em;color:var(--ink,#1a2830)}
.lib-body h4{font-weight:650;font-size:1em;margin:1.6em 0 .4em;color:var(--sage-deep,#1c3d4a)}
.lib-body h2:first-child,.lib-body h3:first-child{margin-top:0}
.lib-body ul,.lib-body ol{margin:0 0 1.35em;padding-left:1.3em;display:grid;gap:.45em}
.lib-body li::marker{color:var(--sage,#3a7d8c)}
.lib-body strong{font-weight:650;color:var(--ink,#1a2830)}
.lib-figure{margin:2.2em 0;}
.lib-figure img{display:block;width:auto;max-width:100%;max-height:85vh;margin-inline:auto;height:auto;border-radius:16px;background:var(--cream-warm,#f3ece1)}
.lib-figure figcaption{font-size:.85rem;color:rgba(26,40,48,.6);margin-top:.6rem;text-align:center}
@media (min-width:1100px){.lib-figure{margin-inline:-4rem}}

/* ---------- shelves: products, LC, care ---------- */
.lib-shelf{margin-top:clamp(2.8rem,6vw,4.5rem)}
.lib-shelf-head{margin-bottom:1.1rem}
.lib-shelf-head h2,.lib-faq h2{font-family:var(--font-display);font-weight:400;font-size:clamp(1.6rem,3.2vw,2.2rem);margin:.3rem 0 0;line-height:1.15}
.lib-products{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(15rem,1fr);gap:1rem;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:.5rem;scrollbar-width:thin}
@media (min-width:900px){.lib-products{grid-auto-flow:row;grid-template-columns:repeat(3,1fr);overflow:visible}}
.lib-product{scroll-snap-align:start;display:flex;flex-direction:column;text-decoration:none;background:#fff;border-radius:20px;overflow:hidden;box-shadow:0 1px 2px rgba(26,40,48,.05),0 8px 24px rgba(26,40,48,.06);transition:transform .3s}
@media (hover:hover){.lib-product:hover{transform:translateY(-3px)}}
.lib-product-img{position:relative;flex-shrink:0;overflow:hidden;background:linear-gradient(180deg,#f6f2ea,#efe8dc);aspect-ratio:4/3}
.lib-product-img img{position:absolute;inset:1rem;width:calc(100% - 2rem);height:calc(100% - 2rem);object-fit:contain;mix-blend-mode:multiply}
.lib-product-body{display:flex;flex-direction:column;gap:.35rem;padding:1rem 1.15rem 1.2rem;flex:1}
.lib-product-body strong{font-size:1.02rem}
.lib-product-body span{font-size:.9rem;line-height:1.45;color:var(--ink-soft,#3a4d58)}
.lib-product-body em,.lib-lc em{font-style:normal;font-weight:600;font-size:.9rem;color:var(--sage,#3a7d8c);margin-top:auto;padding-top:.4rem}
.lib-lc{display:flex;align-items:center;gap:1.1rem;text-decoration:none;background:var(--ink,#1a2830);color:var(--paper,#fbf9f2);border-radius:24px;padding:1.4rem 1.5rem;flex-wrap:wrap}
.lib-lc img{width:56px;height:56px;border-radius:14px;background:var(--paper,#fbf9f2);padding:6px;object-fit:contain}
.lib-lc>span{display:flex;flex-direction:column;gap:.2rem;flex:1 1 16rem}
.lib-lc small{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--sage-light,#7abdc8)}
.lib-lc strong{font-family:var(--font-display);font-weight:400;font-size:1.45rem;color:var(--paper,#fbf9f2)}
.lib-lc>span>span{font-size:.95rem;line-height:1.45;color:rgba(251,249,242,.78)}
.lib-lc em{color:var(--sage-light,#7abdc8);margin:0}
.lib-cta{margin-top:1.4rem}
.lib .btn-primary{color:#fff}
.lib .seo-related-grid{margin-top:0}

.lib-faq{margin-top:clamp(2.8rem,6vw,4.5rem)}
.lib-faq .seo-faq-list{margin-top:1rem}
.lib-author{display:flex;gap:1.1rem;align-items:flex-start;margin-top:clamp(2.5rem,5vw,3.5rem);padding-block:1.6rem;border-block:1px solid var(--lib-line)}
.lib-author .lib-avatar{width:72px;height:72px;font-size:1.3rem}
.lib-author div{display:flex;flex-direction:column;gap:.2rem}
.lib-author strong{font-family:var(--font-display);font-weight:400;font-size:1.35rem}
.lib-author em{font-style:normal;font-size:.9rem;color:var(--sage,#3a7d8c)}
.lib-author p{margin:.4rem 0 0;font-size:.96rem;line-height:1.55;color:var(--ink-soft,#3a4d58)}
.lib-disclaimer{font-size:.85rem;line-height:1.5;color:rgba(26,40,48,.6);margin-top:1.4rem}

@media (prefers-reduced-motion:reduce){.lib-card,.lib-product,.lib-chip{transition:none}.lib-progress{display:none}}
@media print{nav,footer,.lib-progress,.lib-shelf,.lib-chips{display:none!important}.lib{padding-top:0}}