:root{
  --desk:#3b404c;
  --desk-dark:#2d333d;
  --active-glow-rgb:178,167,193;
  --shell:#242424;
  --shell-deep:#151515;
  --shell-edge:#3d3d3d;
  --screen:#e5e2d5;
  --screen-ink:#262723;
  --screen-soft:#696961;
  --night-ink:#efecdf;
  --night-muted:#aaa6b6;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  min-width:320px;
  background:var(--desk);
  color:var(--night-ink);
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
button{font:inherit;}

.hero{
  position:relative;
  isolation:isolate;
  display:grid;
  min-height:100svh;
  place-items:center;
  align-content:center;
  gap:1.15rem;
  padding:clamp(2rem,5vw,4.5rem) 1.25rem 5.5rem;
  overflow:hidden;
  background:
    radial-gradient(circle at 17% 18%,rgba(var(--active-glow-rgb),.34),transparent 34%),
    radial-gradient(circle at 84% 68%,rgba(var(--active-glow-rgb),.24),transparent 37%),
    radial-gradient(ellipse at 50% 44%,rgba(var(--active-glow-rgb),.12),transparent 46%),
    linear-gradient(145deg,#4b3c4b 0,#354954 52%,#4a3944 100%);
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:radial-gradient(ellipse at 50% 44%,transparent 0 38%,rgba(11,13,19,.13) 76%,rgba(11,13,19,.28) 100%);
  opacity:.62;
}
.hero>*{z-index:1;}

.kindle{
  position:relative;
  width:min(84vw,390px);
  aspect-ratio:.675;
  border:0;
  outline:0;
  cursor:pointer;
  perspective:1500px;
  -webkit-tap-highlight-color:transparent;
}
.kindle::after{
  content:"";
  position:absolute;
  right:9%;
  bottom:-25px;
  left:9%;
  z-index:0;
  height:28px;
  border-radius:50%;
  background:radial-gradient(ellipse,rgba(0,0,0,.58) 0,rgba(0,0,0,.24) 38%,transparent 72%);
  pointer-events:none;
}
.kindle:focus-visible{outline:3px solid #efe6d7;outline-offset:10px;border-radius:28px;}
.kindle-inner{
  position:absolute;
  inset:0;
  z-index:1;
  transform-style:preserve-3d;
}
.kindle.is-flipped .kindle-inner{transform:rotateY(180deg);}
.kindle.is-turning-to-back .kindle-inner{animation:kindle-turn-to-back .54s cubic-bezier(.34,.02,.18,1) both;will-change:transform;}
.kindle.is-turning-to-front .kindle-inner{animation:kindle-turn-to-front .54s cubic-bezier(.34,.02,.18,1) both;will-change:transform;}
.kindle.is-turning-to-back::after,
.kindle.is-turning-to-front::after{animation:kindle-shadow .54s ease-in-out both;}
.kindle-face{
  position:absolute;
  inset:0;
  overflow:hidden;
  border:2px solid #0e0e0e;
  border-radius:25px;
  backface-visibility:hidden;
  -webkit-backface-visibility:hidden;
  box-shadow:
    0 30px 46px rgba(0,0,0,.53),
    0 8px 14px rgba(0,0,0,.38),
    inset 0 1px 0 rgba(255,255,255,.14),
    inset 0 -2px 2px rgba(0,0,0,.48);
}
.kindle-face::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:8;
  border-radius:inherit;
  pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.12) 0 1px,transparent 1px 5px) top/100% 3px no-repeat,
    repeating-linear-gradient(90deg,rgba(0,0,0,.24) 0 2px,transparent 2px 7px) bottom/100% 4px no-repeat,
    repeating-linear-gradient(0deg,rgba(255,255,255,.075) 0 1px,transparent 1px 6px) left/3px 100% no-repeat,
    repeating-linear-gradient(0deg,rgba(0,0,0,.18) 0 2px,transparent 2px 8px) right/4px 100% no-repeat;
  box-shadow:
    inset 0 0 0 2px rgba(0,0,0,.22),
    inset 0 0 0 5px rgba(255,255,255,.025),
    inset 0 0 16px rgba(0,0,0,.12);
  opacity:.72;
}

.kindle-front{
  padding:34px 21px 49px;
  background:linear-gradient(112deg,#333 0,#1f1f1f 48%,#181818 100%);
}
.kindle.has-custom-wrap .kindle-front{
  border-color:var(--wrap-edge);
  background:linear-gradient(112deg,rgba(255,255,255,.2),transparent 38%,rgba(85,52,0,.18)),var(--wrap-color);
}
.kindle-front::after{
  content:"";
  position:absolute;
  top:90px;
  right:-4px;
  width:5px;
  height:78px;
  border-radius:0 4px 4px 0;
  background:#101010;
  box-shadow:0 1px 0 #474747;
}
.eink-screen{
  position:relative;
  display:flex;
  height:100%;
  min-height:0;
  flex-direction:column;
  overflow:hidden;
  border:2px solid #111;
  border-radius:3px;
  background-color:var(--screen);
  background-image:radial-gradient(rgba(29,29,26,.055) .65px,transparent .7px);
  background-size:3px 3px;
  color:var(--screen-ink);
  box-shadow:
    inset 0 0 16px rgba(35,35,31,.16),
    0 1px 0 rgba(255,255,255,.1);
}
.screen-status,.screen-footer{
  display:flex;
  flex:0 0 auto;
  align-items:center;
  justify-content:space-between;
  padding:.55rem .7rem .48rem;
  font-size:.58rem;
  font-weight:700;
  letter-spacing:.12em;
}
.screen-status{border-bottom:1px solid rgba(38,39,35,.45);}
.screen-footer{border-top:1px solid rgba(38,39,35,.45);}
.screen-content{
  display:flex;
  min-height:0;
  flex:1;
  flex-direction:column;
  padding:clamp(1.25rem,4vw,2rem) clamp(1.1rem,4vw,1.8rem) 1.2rem;
}
.screen-kicker{
  margin:0 0 .8rem;
  color:var(--screen-soft);
  font-size:.67rem;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
}
.screen-content h1{
  max-height:4.5em;
  margin:0;
  overflow:hidden;
  font:600 clamp(1.65rem,5vw,2.55rem)/.98 Georgia,"Times New Roman",serif;
  letter-spacing:-.045em;
}
.screen-author{
  margin:.75rem 0 1.15rem;
  color:#464740;
  font:italic 1rem/1.2 Georgia,"Times New Roman",serif;
}
.screen-details{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  margin:0;
  padding:.65rem 0;
  border-top:1px solid #4b4c46;
  border-bottom:1px solid #4b4c46;
}
.screen-details div{min-width:0;padding-right:.4rem;}
.screen-details div+div{padding-left:.55rem;border-left:1px solid rgba(75,76,70,.55);}
.screen-details dt{
  margin:0 0 .25rem;
  color:var(--screen-soft);
  font-size:.55rem;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.screen-details dd{
  margin:0;
  overflow:hidden;
  font:700 .76rem/1.1 Georgia,"Times New Roman",serif;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.screen-note{
  display:-webkit-box;
  margin:1.15rem 0 0;
  overflow:hidden;
  color:#363732;
  font:1rem/1.38 Georgia,"Times New Roman",serif;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:6;
}
.screen-note::before{content:"“";font-size:1.25em;}
.screen-note::after{content:"”";}
.device-mark{
  position:absolute;
  right:0;
  bottom:17px;
  left:0;
  color:#080808;
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.12em;
  text-align:center;
  text-shadow:0 1px 0 rgba(255,255,255,.08);
}

.kindle-back{
  padding:8.5% 9% 7%;
  transform:rotateY(180deg);
  background-color:#242424;
  background-image:
    linear-gradient(115deg,rgba(255,255,255,.035),transparent 32%,rgba(0,0,0,.13) 72%),
    repeating-linear-gradient(88deg,transparent 0 3px,rgba(255,255,255,.012) 3px 4px);
}
.kindle-back.has-custom-wrap{
  border-color:var(--wrap-edge);
  background-color:var(--wrap-color);
  background-image:var(--wrap-image);
  background-position:center;
  background-size:cover;
}
.kindle-back.has-custom-wrap .back-seam{display:none;}
.kindle-back::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:5;
  pointer-events:none;
  background:linear-gradient(to bottom,transparent 0 34%,rgba(255,253,239,.08) 42%,rgba(255,253,239,.24) 49%,rgba(255,253,239,.07) 57%,transparent 66%);
  opacity:0;
  transform:translateY(-85%);
}
.kindle.is-turning-to-back .kindle-back::after{animation:kindle-light-sweep .54s ease-out both;}
.back-seam{
  position:absolute;
  inset:9px;
  border:1px solid rgba(255,255,255,.025);
  border-radius:18px;
  box-shadow:inset 0 0 18px rgba(0,0,0,.24);
}
.flip-hint{
  margin:0;
  color:#b7b2c1;
  font-size:.72rem;
  font-weight:700;
  letter-spacing:.08em;
  text-align:center;
  text-transform:uppercase;
}
.scroll-cue{
  position:absolute;
  bottom:1.5rem;
  color:#e5dece;
  font-size:.75rem;
  font-weight:700;
  letter-spacing:.1em;
  text-decoration:none;
  text-transform:uppercase;
}
.scroll-cue span{display:inline-block;margin-left:.35rem;animation:scroll-pulse 1.8s ease-in-out infinite;}

.library{
  min-height:100svh;
  padding:clamp(4rem,9vw,8rem) clamp(1rem,5vw,4rem) 7rem;
  border-top:1px solid rgba(255,255,255,.12);
  background:
    radial-gradient(circle at 12% 16%,rgba(var(--active-glow-rgb),.23),transparent 31%),
    radial-gradient(circle at 88% 48%,rgba(var(--active-glow-rgb),.16),transparent 34%),
    radial-gradient(circle at 35% 88%,rgba(var(--active-glow-rgb),.11),transparent 32%),
    linear-gradient(180deg,#343b47 0,#403746 58%,#2d3d45 100%);
}
.library-header{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  max-width:1220px;
  margin:0 auto clamp(2.5rem,6vw,5rem);
  align-items:end;
  gap:.35rem 2rem;
}
.library-header>p,.library-count{
  margin:0;
  color:var(--night-muted);
  font-size:.7rem;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
}
.library-header h2{
  grid-column:1;
  margin:0;
  font:600 clamp(2.3rem,6vw,5.3rem)/.88 Georgia,"Times New Roman",serif;
  letter-spacing:-.055em;
}
.library-toolbar{
  display:flex;
  grid-column:2;
  grid-row:1/3;
  align-items:flex-end;
  flex-direction:column;
  gap:.75rem;
  padding-bottom:.35rem;
}
.library-toggle{
  display:flex;
  padding:3px;
  border:1px solid #05070c;
  border-radius:999px;
  background:#111520;
  box-shadow:inset 0 1px 2px rgba(0,0,0,.65),0 1px rgba(255,255,255,.06);
}
.filter-button{
  padding:.6rem .8rem .54rem;
  border:0;
  border-radius:999px;
  background:transparent;
  color:#a9a79f;
  cursor:pointer;
  font-size:.62rem;
  font-weight:800;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.filter-button[aria-pressed="true"]{
  background:var(--screen);
  color:var(--screen-ink);
  box-shadow:inset 0 0 8px rgba(35,35,31,.13),0 1px 2px rgba(0,0,0,.45);
}
.filter-button:focus-visible{outline:2px solid var(--screen);outline-offset:3px;}
.library-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(165px,1fr));
  max-width:1220px;
  margin:0 auto;
  gap:clamp(1.5rem,4vw,3.5rem);
}
.library-card{
  position:relative;
  min-width:0;
  aspect-ratio:.675;
  padding:0;
  border:0;
  outline:0;
  background:transparent;
  color:inherit;
  cursor:pointer;
  font:inherit;
  -webkit-appearance:none;
  appearance:none;
  -webkit-tap-highlight-color:transparent;
  touch-action:manipulation;
  transition:transform .25s ease;
}
.library-card:focus-visible{outline:0;}
.library-device{
  position:relative;
  display:flex;
  width:100%;
  height:100%;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  isolation:isolate;
  padding:1.25rem;
  overflow:hidden;
  border:0;
  border-radius:14px;
  background-color:#2a2a2a;
  background-image:
    linear-gradient(118deg,rgba(255,255,255,.035),transparent 34%,rgba(0,0,0,.12)),
    repeating-linear-gradient(89deg,transparent 0 3px,rgba(255,255,255,.012) 3px 4px);
  box-shadow:
    0 18px 25px rgba(0,0,0,.43),
    0 4px 7px rgba(0,0,0,.34),
    inset 0 1px 0 rgba(255,255,255,.1),
    inset 0 -2px 2px rgba(0,0,0,.38);
  transform:rotate(var(--device-tilt,0deg));
  transition:transform .25s ease,box-shadow .25s ease;
}
.library-device::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  border-radius:inherit;
  pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(255,255,255,.09) 0 1px,transparent 1px 5px) top/100% 2px no-repeat,
    repeating-linear-gradient(90deg,rgba(0,0,0,.2) 0 2px,transparent 2px 7px) bottom/100% 3px no-repeat,
    repeating-linear-gradient(0deg,rgba(255,255,255,.055) 0 1px,transparent 1px 6px) left/2px 100% no-repeat,
    repeating-linear-gradient(0deg,rgba(0,0,0,.15) 0 2px,transparent 2px 8px) right/3px 100% no-repeat;
  box-shadow:inset 0 0 12px rgba(0,0,0,.1);
  opacity:.62;
}
.library-device.has-custom-wrap{
  background-color:var(--wrap-color);
  background-image:var(--wrap-image);
  background-position:center;
  background-size:cover;
}
.library-device-title{
  position:absolute;
  right:9%;
  bottom:6%;
  left:9%;
  z-index:2;
  display:-webkit-box;
  margin:0;
  overflow:hidden;
  color:var(--imprint-color,#f4f1e7);
  font:800 clamp(.65rem,1.15vw,.88rem)/1.04 Georgia,"Times New Roman",serif;
  letter-spacing:.025em;
  opacity:.9;
  text-align:center;
  text-shadow:0 1px 0 rgba(255,255,255,.3),0 -1px 0 rgba(0,0,0,.48);
  text-transform:uppercase;
  -webkit-box-orient:vertical;
  -webkit-line-clamp:2;
}
.library-card:hover,
.library-card:focus-visible{
  z-index:2;
  transform:translateY(-7px);
}
.library-card:hover .library-device,
.library-card:focus-visible .library-device{
  box-shadow:
    0 24px 30px rgba(0,0,0,.48),
    0 6px 9px rgba(0,0,0,.37),
    inset 0 1px 0 rgba(255,255,255,.1),
    inset 0 -2px 2px rgba(0,0,0,.38);
  transform:rotate(0deg);
}
.library-loading,.library-error{
  grid-column:1/-1;
  margin:0;
  color:#bbb6c2;
  font:600 1.15rem/1.4 Georgia,"Times New Roman",serif;
  text-align:center;
}

@keyframes scroll-pulse{0%,100%{transform:translateY(0);}50%{transform:translateY(5px);}}
@keyframes kindle-turn-to-back{
  0%{transform:translate3d(0,0,0) rotateY(0) scale(1);}
  48%{transform:translate3d(0,-11px,0) rotateY(90deg) scale(.96);}
  100%{transform:translate3d(0,0,0) rotateY(180deg) scale(1);}
}
@keyframes kindle-turn-to-front{
  0%{transform:translate3d(0,0,0) rotateY(180deg) scale(1);}
  52%{transform:translate3d(0,-11px,0) rotateY(90deg) scale(.96);}
  100%{transform:translate3d(0,0,0) rotateY(0) scale(1);}
}
@keyframes kindle-shadow{
  0%,100%{opacity:1;transform:translateY(0) scaleX(1);}
  50%{opacity:.42;transform:translateY(10px) scaleX(.48);}
}
@keyframes kindle-light-sweep{
  0%,34%{opacity:0;transform:translateY(-85%);}
  52%{opacity:.42;}
  78%{opacity:.24;}
  100%{opacity:0;transform:translateY(85%);}
}
@media (max-width:620px){
  .hero{padding-inline:.7rem;}
  .kindle{width:min(88vw,355px);}
  .kindle-front{padding:28px 17px 43px;}
  .screen-content{padding:1.15rem 1rem .9rem;}
  .screen-content h1{font-size:clamp(1.45rem,7.5vw,2.05rem);}
  .screen-author{margin:.55rem 0 .85rem;}
  .screen-note{margin-top:.85rem;font-size:.88rem;-webkit-line-clamp:5;}
  .device-mark{bottom:14px;}
  .library{padding-inline:.85rem;}
  .library-header{grid-template-columns:1fr;}
  .library-toolbar{grid-column:1;grid-row:auto;align-items:flex-start;margin-top:.9rem;padding:0;}
  .library-toggle{width:100%;}
  .filter-button{flex:1;}
  .library-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.1rem .8rem;}
  .library-device{padding:.85rem;border-radius:11px;}
  .library-device-title{font-size:clamp(.58rem,3.1vw,.76rem);}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;}
}