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/* Keep the desktop layout aligned with the approved illustration’s shelves. */
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/* Five-book trial: real covers, rigid hinge, shared recording batches. */
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@media(min-width:851px){.feature{grid-template-columns:54% 46%;align-items:end}.feature-copy{padding-bottom:0}.feature-copy h2{font-size:1.8vw;margin:.8vw 0}.read-button{margin-top:1vw}.featured-label{padding:.45vw .7vw}.narrator-section h2{margin-bottom:.9vw}.book-grid{min-height:200px}.portrait{width:9.6vw}}
@media(max-width:850px){.feature{grid-template-columns:1fr;max-width:540px}.featured-cover{max-width:420px;width:100%;margin:0 auto}.feature-copy{padding:16px}.feature-copy h2{font-size:28px}.feature-copy p{font-size:16px}.read-button{max-width:300px}.book-card{flex-basis:45%;min-width:190px}.book-grid{gap:20px}.physical-cover .cover-title{font-size:21px}.story-card{aspect-ratio:auto;grid-template-columns:1fr}.page-picture{padding:0;max-height:42svh}.page-picture img{max-height:42svh;width:100%;object-fit:contain}.story-copy{padding:15px}.audio-batch,.long-copy .audio-batch{font-size:20px;line-height:1.5}.story-copy .chapter{font-size:11px}.opening-cover{width:100%;max-width:600px}.friend-intro{grid-template-columns:30% 70%;gap:12px}.friend-intro h2{font-size:32px}.friend-intro p{font-size:14px}.friend-answer{font-size:17px}}
@media(max-width:480px){.book-card{flex-basis:78%;min-width:210px}.friend-intro{grid-template-columns:1fr;padding:0;text-align:center}.friend-intro>img{height:180px;margin:auto}.friend-intro .read-button{margin:10px auto}.friend-questions{justify-content:center}.audio-controls{gap:6px}.audio-controls button{padding:9px 12px}.portrait{width:80px}.opening-cover .cover-title{font-size:25px}}
@media(min-width:851px){.reader-stage{width:min(100%,calc(54svh * 1.5))}.story-copy{padding:16px}.audio-batch,.long-copy .audio-batch{font-size:clamp(16px,1.45vw,22px);line-height:1.45}.chapter{font-size:10px}.batch-hint{font-size:10px}.book-grid{padding-top:3vw}}
.ruby-portrait{background:#dfdfc8}.ruby-portrait img{height:150%;width:100%;object-fit:cover;object-position:top;display:block}
.physical-cover{display:flex;flex-direction:column;background:#fff7e7}.physical-cover>img{position:absolute;bottom:5%;left:5%;width:95%;height:67%;object-fit:contain}.cover-title{background:none;padding:4% 7% 0 10%;font-size:clamp(16px,1.55vw,25px)}.cover-credit{font-size:6px;bottom:0;background:transparent}.cover-ridge{background:linear-gradient(90deg,var(--book-color),#ffffff60 28%,var(--book-color) 48%,#ffffff66 70%,transparent);width:4%}.opening-cover .cover-title{font-size:clamp(24px,3vw,40px)}.opening-cover .cover-credit{font-size:9px}.story-card{grid-template-columns:1fr 1fr}.page-picture{padding:0}.audio-batch{padding:10px}.story-copy{background:linear-gradient(90deg,#e1d6be,#fff9ec 5%);height:100%;justify-content:center}
@media(min-width:851px){.reader-stage{width:min(100%,1000px)}.opening-cover{width:50%;left:50%!important;translate:0 -50%}.story-copy{padding:18px 24px}.audio-batch,.long-copy .audio-batch{font-size:clamp(17px,1.75vw,25px)}.long-copy .story-copy{justify-content:flex-start}.reader-toolbar{margin-bottom:22px}}
@media(max-width:850px){.story-card{grid-template-columns:1fr}.opening-cover{left:50%!important;width:100%;translate:-50% -50%}.story-copy{background:#fff9ec}.physical-cover .cover-title{font-size:20px}.opening-cover .cover-title{font-size:32px}}
.physical-cover>img{height:60%}.cover-title{font-size:clamp(15px,1.4vw,23px)}.collection{background:transparent}.collection-foot{min-width:220px;max-width:380px}.collection-foot button{min-width:44px;min-height:44px;margin:0;font-size:20px}.collection-foot #reset{font-size:12px}.collection-foot #count{white-space:nowrap}
@media(min-width:851px){.book-grid{padding-top:4.5vw}}

/* Full-bleed covers and a centred, continuous opening into the loaded spread. */
.physical-cover>img{inset:0;width:100%;height:100%;object-fit:contain}
.cover-title{padding:5% 7% 16% 10%;background:linear-gradient(#fff8e9f5 30%,#fff8e9d9 65%,#fff8e900);text-shadow:0 1px 1px #fff9}
.cover-credit{bottom:2%;left:12%;right:8%;background:#fff8e9d9;font-size:7px;padding:3px}
.opening-cover{backface-visibility:visible;filter:none}
.cover-front{box-shadow:3px 8px 20px #46321a30}
.cover-front,.cover-inside{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:3px;overflow:hidden}
.cover-front .physical-cover{height:100%}
.cover-inside{transform:rotateY(180deg);background:#f4e6ca}
.cover-inside img{width:100%;height:100%;object-fit:contain;display:block}
#reader.opening .reader-controls,#reader.opening .audio-controls button{pointer-events:none}
#reader.opening .story-card{pointer-events:none}

/* Responsive reading room: preserve the desktop, adapt available touch space. */
@media(max-width:1100px),(pointer:coarse){
 html{scroll-padding-top:16px}.library{overflow-x:clip;padding:0 14px;background-size:auto 1100px}
 .header{height:auto;max-height:none;min-height:110px;padding:14px;gap:12px;flex-wrap:wrap;justify-content:space-between}
 .brand{font-size:14px}.brand-top{font-size:38px}.logo-book{font-size:24px}.header nav{gap:0}.nav-tab{font-size:15px;padding:12px;min-height:44px}.search{flex:1 1 100%;padding:4px 12px}.search input{font-size:16px;min-width:0;width:100%}
 .hero{height:auto;max-height:none;grid-template-columns:1fr;padding:28px 16px;gap:28px}.welcome{min-width:0;text-align:center}.welcome h1{font-size:clamp(34px,6vw,54px);white-space:normal;letter-spacing:-1px}.tagline{font-size:19px;margin:12px 0 24px}.narrator-section h2{font-size:23px;margin:0 0 15px}.narrators{justify-content:center;gap:20px;flex-wrap:wrap}.narrator{font-size:17px;min-height:44px}.portrait{width:90px;max-width:none}
 .feature{width:100%;max-width:760px;margin:auto;grid-template-columns:1fr 1fr;gap:22px;padding:0;align-items:center}.featured-cover{width:100%;max-width:420px;margin:auto}.feature-copy{padding:12px;background:#fff7e5c9;border-radius:15px}.feature-copy h2{font-size:27px;margin:12px 0}.feature-copy p{font-size:16px}.featured-label{font-size:13px;padding:8px 12px}.tags span{font-size:12px;padding:7px 10px}.read-button{font-size:16px;margin-top:18px;padding:14px;min-height:48px;max-width:none}
 .collection{padding:22px 12px;background:#fff7e3aa;border-radius:18px}.collection-heading{align-items:flex-start;flex-direction:column;gap:20px}.collection h2{font-size:34px}.filters{width:100%;gap:12px}.filters label{width:50%;font-size:14px}.filters select{width:100%;min-width:0;font-size:16px;min-height:46px;padding:10px}.book-grid{padding:12px 5px 18px;min-height:0;gap:24px}.book-card{flex:0 0 calc((100% - 48px)/3);min-width:190px}.book-tags{gap:5px;margin-top:12px}.cover-title{font-size:21px}.shelf-credit{font-size:13px}
 #reader{box-sizing:border-box;width:calc(100vw - 24px);max-width:1080px;height:calc(100dvh - 24px);max-height:calc(100dvh - 24px);margin:auto;padding:16px;overflow:hidden;border-radius:20px}
 #reader[open]{display:grid;grid-template-rows:auto minmax(0,1fr) auto;gap:10px}
 #reader.opening{overflow:hidden}.reader-toolbar{margin:0;gap:10px}.reader-toolbar h2{font-size:24px;margin:4px 0}.eyebrow{font-size:10px;letter-spacing:.05em}.reader-toolbar button{width:44px;height:44px}
 .reader-stage{width:100%;height:100%!important;min-height:0!important;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;isolation:isolate}
 .story-card{aspect-ratio:auto;grid-template-columns:1fr;min-height:100%;overflow:visible;align-items:start;transform-origin:center center}
 .page-picture{height:auto;max-height:none;min-height:0;background:#f4e6ca}.page-picture img{width:100%;height:auto;max-height:34dvh;object-fit:contain}
 .story-copy{height:auto;max-height:none;overflow:visible;padding:16px;background:#fff9ec;gap:10px;justify-content:flex-start}
 .audio-batch,.long-copy .audio-batch{font-size:22px;line-height:1.5;padding:10px}.chapter,.story-copy .chapter{font-size:11px}.batch-hint{font-size:12px}
 .opening-cover{left:50%!important;translate:-50% -50%;max-width:none}.opening-cover .cover-title{font-size:clamp(23px,4vw,36px)}
 .reader-bottom{background:#fbf4e5;padding-top:6px;border-top:1px solid #dacdb6}.reader-controls{margin:0;gap:24px}.reader-controls button{width:52px;height:44px}.reader-controls span{min-width:70px;font-size:14px}.audio-controls{margin:8px 0 0;gap:8px}.audio-controls button{min-height:44px;padding:10px 14px;font-size:14px}.audio-controls label{font-size:14px;min-height:44px}.audio-controls input{width:22px;height:22px}#audio-status{font-size:12px;min-height:15px;margin:5px 0 0}.reader-note{display:none}
 #friend-dialog{box-sizing:border-box;width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:20px}.friend-intro{padding-top:20px;grid-template-columns:30% minmax(0,1fr);gap:14px}.friend-intro h2{font-size:34px}.friend-intro p{font-size:16px}.friend-questions button{min-height:46px;font-size:15px}.friend-answer{font-size:19px}
}
@media(max-width:1100px) and (min-width:900px),(pointer:coarse) and (min-width:900px),(max-height:500px) and (min-width:600px){
 #reader .story-card{grid-template-columns:1fr 1fr;min-height:100%;align-items:center}
 #reader .page-picture{height:100%;display:flex;align-items:center}
 #reader .page-picture img{max-height:100%;height:auto}
 #reader .story-copy{height:auto;min-height:100%;background:linear-gradient(90deg,#e1d6be,#fff9ec 5%);justify-content:center}
 #reader .opening-cover{width:50%;left:50%!important;top:50%!important;translate:0 -50%}
}
@media(max-width:600px){
 .library{padding:0 10px}.hero{padding:22px 8px}.header{padding:12px 6px;gap:9px}.brand-top{font-size:31px}.brand{font-size:12px}.nav-tab{font-size:13px;padding:10px 8px}.welcome h1{font-size:38px}.tagline{font-size:18px}.narrators{gap:20px}.portrait{width:76px}.narrator-section h2{font-size:22px}
 .feature{grid-template-columns:1fr;gap:14px;max-width:440px}.featured-cover{max-width:330px}.feature-copy{padding:18px}.feature-copy h2{font-size:27px}.collection h2{font-size:29px}.book-card{flex-basis:78%;min-width:0}.book-grid{gap:20px}.collection{padding:20px 8px}.book-tags span{font-size:12px!important}
 #reader{width:100%;height:100dvh;max-height:100dvh;border-radius:0;padding: max(12px,env(safe-area-inset-top)) max(12px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));gap:8px}
 .reader-toolbar h2{font-size:21px}.reader-toolbar .eyebrow{font-size:9px}.page-picture img{max-height:29dvh}.story-copy{padding:12px}.audio-batch,.long-copy .audio-batch{font-size:20px;line-height:1.5}.audio-controls{gap:6px;display:grid;grid-template-columns:1fr 1fr auto}.audio-controls label{grid-column:1/3;grid-row:2;justify-content:center}.audio-controls #stop-audio{grid-column:3;grid-row:1/3;align-self:stretch}.audio-controls button{padding:9px;font-size:14px}.reader-controls{gap:20px}.reader-bottom{padding-top:5px}
 .friend-intro{grid-template-columns:1fr;text-align:center}.friend-intro>img{height:160px;margin:auto}.friend-intro .read-button{margin:12px auto}.friend-questions{justify-content:center}
}
@media(max-height:500px) and (min-width:600px){
 #reader{width:100%;height:100dvh;max-height:100dvh;border-radius:0;padding:8px max(14px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left));gap:4px}.reader-toolbar h2{font-size:19px}.reader-toolbar .eyebrow{display:none}.reader-toolbar button{width:44px;height:44px}.reader-bottom{display:grid;grid-template-columns:auto 1fr;gap:6px;padding-top:4px}.reader-controls{gap:10px}.audio-controls{margin:0;gap:6px}.audio-controls button{padding:8px 11px}.audio-controls label{font-size:12px}#audio-status{grid-column:1/-1;margin:0}.story-copy{padding:10px}.audio-batch,.long-copy .audio-batch{font-size:18px}.batch-hint{display:none}.chapter{font-size:10px}
}
@media(hover:none){.cover-button:hover{transform:none}.cover-button:active{transform:translateY(-3px)}.narrators{touch-action:manipulation}}