@font-face{font-family:"Mountains of Christmas";font-weight:700;font-display:swap;src:url(assets/fonts/mountains.woff2) format("woff2")}
@font-face{font-family:"Fredoka";font-weight:300 700;font-display:swap;src:url(assets/fonts/fredoka.woff2) format("woff2")}
:root{--red:#d62839;--red-d:#9e1424;--green:#1f8a4c;--green-d:#13623a;--gold:#ffd166;--cream:#fff8ec;--ink:#2b1d14;--night:#0e1b3d;
  --title:"Mountains of Christmas","Comic Sans MS","Chalkboard SE",cursive;--body:"Fredoka","Trebuchet MS","Segoe UI",system-ui,sans-serif}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:var(--body);color:var(--ink);background:var(--night);overflow-x:hidden;min-height:100vh}
#bg{position:fixed;inset:0;z-index:-2;background:linear-gradient(180deg,rgba(8,16,48,.55),rgba(8,16,48,.25) 35%,rgba(8,16,48,.7)),url(assets/bg-village.jpg?v=20261103-paintedsnow) center/cover no-repeat}
#snow{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:40}
img{user-select:none;-webkit-user-drag:none}

.topbar{position:relative;z-index:5;padding:calc(12px + env(safe-area-inset-top,0px)) 14px 0;max-width:1100px;margin:0 auto}
.back{display:inline-flex;align-items:center;gap:6px;font-weight:700;color:#fff;text-decoration:none;background:rgba(255,255,255,.14);border:2px solid rgba(255,255,255,.35);
  padding:8px 16px;border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:transform .15s,background .15s}
.back:hover,.back:focus-visible{background:rgba(255,255,255,.26);transform:translateY(-1px)}

/* hero */
.hero{position:relative;max-width:1100px;margin:0 auto;display:flex;align-items:flex-end;justify-content:center;gap:4px;padding:28px 10px 34px;overflow:hidden;min-height:250px}
.moon{position:absolute;right:9%;top:8px;width:74px;height:74px;border-radius:50%;background:radial-gradient(circle at 35% 35%,#fffbe8,#ffe9a8 60%,#f3c96a);box-shadow:0 0 40px 14px rgba(255,233,168,.45);opacity:.9}
.flyer{position:absolute;top:18px;left:-260px;display:flex;flex-direction:row-reverse;align-items:flex-end;gap:0;animation:fly 16s linear infinite;filter:drop-shadow(0 6px 8px rgba(0,0,0,.35))}
.fl-sleigh{height:62px}.fl-rudolph{height:50px;margin-left:-6px;animation:bob 1s ease-in-out infinite}
@keyframes fly{0%{transform:translate(0,30px)}50%{transform:translate(calc(50vw + 200px),0)}100%{transform:translate(calc(100vw + 560px),24px)}}
@keyframes bob{50%{transform:translateY(-5px)}}
.lights{position:absolute;left:0;right:0;top:0;height:34px;display:flex;justify-content:space-around;pointer-events:none}
.lights::before{content:"";position:absolute;left:-2%;right:-2%;top:-14px;height:30px;border-bottom:2px solid #1b3a22;border-radius:0 0 50% 50%}
.lights i{position:relative;top:10px;width:12px;height:18px;border-radius:50% 50% 50% 50%/60% 60% 40% 40%;background:var(--c);box-shadow:0 0 12px 3px var(--c);animation:twinkle 1.6s ease-in-out infinite;animation-delay:calc(var(--d) * .2s)}
.lights i:nth-child(4n+1){--c:#ff4d5e;--d:1}.lights i:nth-child(4n+2){--c:#ffd166;--d:3}.lights i:nth-child(4n+3){--c:#4ee08a;--d:5}.lights i:nth-child(4n){--c:#5cc8ff;--d:2}
@keyframes twinkle{50%{opacity:.45;box-shadow:0 0 4px 1px var(--c)}}
.hero-santa{height:150px;flex:0 0 auto;filter:drop-shadow(0 8px 10px rgba(0,0,0,.45));animation:sway 3.2s ease-in-out infinite;transform-origin:50% 100%;position:relative;z-index:2}
.hero-elf{height:132px;flex:0 0 auto;filter:drop-shadow(0 8px 10px rgba(0,0,0,.45));animation:hop 2.4s ease-in-out infinite;transform-origin:50% 100%;position:relative;z-index:2}
@keyframes sway{50%{transform:rotate(-3deg)}}
@keyframes hop{0%,100%{transform:translateY(0)}45%{transform:translateY(-10px) rotate(2deg)}}
.hero-text{text-align:center;padding-bottom:14px;position:relative;z-index:3}
.kicker{margin:0 0 6px;color:var(--gold);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem;text-shadow:0 2px 6px rgba(0,0,0,.5)}
h1{font-family:var(--title);font-weight:700;margin:0;font-size:clamp(2.4rem,7.5vw,4.8rem);line-height:.92;color:#fff;
  text-shadow:0 3px 0 var(--red-d),0 6px 0 rgba(0,0,0,.25),0 0 28px rgba(255,209,102,.55)}
h1 span:not(.star){display:block;color:var(--gold);text-shadow:0 3px 0 #b5741a,0 6px 0 rgba(0,0,0,.25),0 0 28px rgba(255,209,102,.6)}
h1 .star{display:inline-block;animation:spin 6s ease-in-out infinite}
@keyframes spin{0%,70%,100%{transform:rotate(0) scale(1)}80%{transform:rotate(20deg) scale(1.2)}90%{transform:rotate(-12deg) scale(1.1)}}
.sub{margin:10px 0 0;color:#fff;font-weight:600;font-size:1.08rem;text-shadow:0 2px 6px rgba(0,0,0,.6)}
.drifts{position:absolute;left:-5%;right:-5%;bottom:-2px;height:40px;z-index:1;
  background:radial-gradient(60px 26px at 10% 100%,#fff 98%,transparent),radial-gradient(90px 30px at 32% 100%,#fff 98%,transparent),radial-gradient(70px 24px at 55% 100%,#fff 98%,transparent),radial-gradient(100px 32px at 80% 100%,#fff 98%,transparent),radial-gradient(60px 22px at 98% 100%,#fff 98%,transparent);opacity:.9}

/* app cards */
.apps{max-width:1100px;margin:0 auto;padding:8px 12px 24px;display:grid;gap:26px}
.app{--a:var(--red);--a2:var(--red-d);position:relative;background:linear-gradient(180deg,#fffdf7,var(--cream));border-radius:28px;padding:30px 18px 20px;
  box-shadow:0 18px 40px rgba(0,0,0,.4),0 0 0 4px rgba(255,255,255,.65),0 0 0 9px var(--a);margin:9px;overflow:hidden;
  animation:rise .7s cubic-bezier(.2,.9,.3,1.2) both;animation-delay:calc(var(--i) * .15s)}
.app-blue{--a:#2f7fd8;--a2:#1b4f99}.app-green{--a:var(--green);--a2:var(--green-d)}.app-gold{--a:#e8a320;--a2:#a86c0c}
@keyframes rise{from{opacity:0;transform:translateY(28px) scale(.97)}}
.app-ribbon{position:absolute;left:0;right:0;top:0;height:12px;background:repeating-linear-gradient(-45deg,var(--a) 0 14px,#fff 14px 28px)}
.app-deco{position:absolute;right:10px;top:16px;width:64px;opacity:.95;filter:drop-shadow(0 4px 6px rgba(0,0,0,.2));pointer-events:none;animation:sway 4s ease-in-out infinite}
.app-head{display:flex;align-items:center;gap:16px;padding-right:58px}
.app-icon{width:92px;height:92px;flex:0 0 92px;border-radius:22%;box-shadow:0 8px 18px rgba(0,0,0,.3),0 0 0 3px #fff;transform:rotate(-4deg);transition:transform .25s}
.app:hover .app-icon{transform:rotate(3deg) scale(1.05)}
h2{font-family:var(--title);font-size:clamp(2rem,6vw,2.8rem);line-height:.95;margin:0;color:var(--a2)}
.app-tag{margin:4px 0 0;font-weight:700;color:var(--a)}
.app-by{margin:2px 0 0;font-size:.88rem;color:#7a6656}
.app-about{font-size:1.06rem;line-height:1.45;margin:16px 0 8px}
.app-points{list-style:none;margin:0 0 6px;padding:0;display:grid;gap:6px}
.app-points li{position:relative;padding-left:28px;line-height:1.35}
.app-points li::before{content:"❄";position:absolute;left:2px;top:-1px;color:var(--a);font-size:1.1rem}
.app-shots{display:flex;gap:14px;overflow-x:auto;scroll-snap-type:x mandatory;padding:16px 4px 14px;margin:6px -6px 4px;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.phone{margin:0;flex:0 0 min(44%,210px);scroll-snap-align:center;border-radius:24px;padding:6px;background:#1c1c22;box-shadow:0 10px 22px rgba(0,0,0,.35);transition:transform .25s}
.phone:nth-child(odd){transform:rotate(-2deg)}.phone:nth-child(even){transform:rotate(2deg) translateY(6px)}
.phone:hover{transform:rotate(0) translateY(-4px) scale(1.03)}
.phone img{display:block;width:100%;height:auto;border-radius:19px}
.app-ctas{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}
.cta{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:8px 20px;border-radius:16px;font-weight:700;font-size:1.05rem;text-decoration:none;transition:transform .15s,box-shadow .15s;flex:1 1 220px;text-align:center}
.cta:hover,.cta:focus-visible{transform:translateY(-2px)}
.cta-store{background:#111;color:#fff;box-shadow:0 5px 0 #000,0 10px 18px rgba(0,0,0,.25)}
.cta-store span:last-child{display:flex;flex-direction:column;align-items:flex-start;line-height:1.05;font-size:1.3rem}
.cta-store small{font-size:.7rem;font-weight:500;opacity:.85}
.cta-ico{width:24px;height:28px;background:#fff;-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 384 512'%3E%3Cpath d='M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zm-56.6-164.2c27.3-32.4 24.8-61.9 24-72.5-24.1 1.4-52 16.4-67.9 34.9-17.5 19.8-27.8 44.3-25.6 71.9 26.1 2 49.9-11.4 69.5-34.3z'/%3E%3C/svg%3E") center/contain no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 384 512'%3E%3Cpath d='M318.7 268.7c-.2-36.7 16.4-64.4 50-84.8-18.8-26.9-47.2-41.7-84.7-44.6-35.5-2.8-74.3 20.7-88.5 20.7-15 0-49.4-19.7-76.4-19.7C63.3 141.2 4 184.8 4 273.5q0 39.3 14.4 81.2c12.8 36.7 59 126.7 107.2 125.2 25.2-.6 43-17.9 75.8-17.9 31.8 0 48.3 17.9 76.4 17.9 48.6-.7 90.4-82.5 102.6-119.3-65.2-30.7-61.7-90-61.7-91.9zm-56.6-164.2c27.3-32.4 24.8-61.9 24-72.5-24.1 1.4-52 16.4-67.9 34.9-17.5 19.8-27.8 44.3-25.6 71.9 26.1 2 49.9-11.4 69.5-34.3z'/%3E%3C/svg%3E") center/contain no-repeat}
.cta-web{background:linear-gradient(180deg,color-mix(in srgb,var(--a) 85%,#fff),var(--a));color:#fff;box-shadow:0 5px 0 var(--a2),0 10px 18px rgba(0,0,0,.2);flex-direction:column;gap:0;line-height:1.15}
.cta-web small{font-size:.75rem;font-weight:500;opacity:.9}

.foot{text-align:center;color:#fff;padding:10px 14px calc(30px + env(safe-area-inset-bottom,0px));position:relative;z-index:5}
.back-big{font-size:1.1rem;padding:12px 22px;background:var(--red);border-color:#fff;box-shadow:0 5px 0 var(--red-d)}
.foot p{opacity:.85;margin:16px 0 0;text-shadow:0 2px 4px rgba(0,0,0,.6)}

@media (max-width:560px){
  .hero{padding:22px 4px 30px;min-height:210px}
  .hero-santa{height:96px;margin-right:-6px}.hero-elf{height:86px;margin-left:-6px}
  .moon{width:46px;height:46px;right:6%}
  .fl-sleigh{height:44px}.fl-rudolph{height:36px}
  .sub{font-size:.95rem}
  .app{padding:26px 14px 18px;border-radius:24px}
  .app-icon{width:72px;height:72px;flex-basis:72px}
  .app-head{gap:12px;padding-right:44px}
  .app-deco{width:46px;right:6px}
  .app-about{font-size:1rem}
}
@media (min-width:900px){
  .apps{grid-template-columns:1fr 1fr;align-items:start;gap:30px}
  .app{padding:34px 24px 24px}
  .phone{flex:1 1 0}
  .app-shots{overflow:visible}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}
/* landscape screenshots (e.g. Christmas Ambience 4K) */
.app-wide .phone{flex:0 0 min(84%,420px);border-radius:18px;padding:5px}
.app-wide .phone img{border-radius:13px}
.app-wide .phone:nth-child(odd){transform:rotate(-1deg)}.app-wide .phone:nth-child(even){transform:rotate(1deg) translateY(4px)}
@media (min-width:900px){
  .app-wide{grid-column:1/-1}
  .app-wide .app-shots{gap:20px}
  .app-wide .phone{flex:1 1 0}
  .app-wide .app-ctas{max-width:640px;margin-left:auto;margin-right:auto}
  .app-wide .app-points{columns:2;column-gap:28px}
  .app-wide .app-points li{break-inside:avoid}
}

/* ================= Holiday Library — books in a snow bank ================= */
.library{max-width:1100px;margin:22px auto 10px;padding:0 12px;position:relative;z-index:2;animation:rise .7s ease-out both;animation-delay:.3s}
.lib-banner{display:flex;justify-content:center;margin:0 auto 8px;position:relative}
.lib-banner h2{position:relative;margin:0;padding:12px 34px 14px;font:400 clamp(1.45rem,5.4vw,2.5rem)/1.1 Mountains,Fredoka,system-ui,sans-serif;color:#fff;text-align:center;
  background:linear-gradient(180deg,#e5394a,var(--red) 55%,var(--red-d));border-radius:8px;box-shadow:0 6px 0 #6f0d18,0 14px 26px rgba(0,0,0,.35);text-shadow:0 2px 0 rgba(0,0,0,.25);z-index:1}
.lib-banner h2::before{content:"";position:absolute;inset:5px;border:2px dashed rgba(255,209,102,.75);border-radius:5px;pointer-events:none}
.lib-banner::before,.lib-banner::after{content:"";position:absolute;top:16px;width:46px;height:calc(100% - 8px);background:var(--red-d);z-index:0}
.lib-banner::before{left:calc(50% - min(48%,330px) - 18px);clip-path:polygon(0 0,100% 0,100% 100%,0 100%,22% 50%)}
.lib-banner::after{right:calc(50% - min(48%,330px) - 18px);clip-path:polygon(0 0,100% 0,78% 50%,100% 100%,0 100%)}
.lib-sub{text-align:center;color:#fff;margin:14px 0 18px;font-weight:600;text-shadow:0 2px 6px rgba(0,0,0,.6)}

/* the outdoor scene: one painted North Pole backdrop (assets/library-snowbank) shared by both books */
.snowscape{--snow:#5f6cbf;position:relative;overflow:hidden;border-radius:30px;padding:0 0 28px;isolation:isolate;
  background:linear-gradient(180deg,#6f79c8,#4b58a8 70%,#3c4996);box-shadow:0 18px 44px rgba(0,0,0,.45),inset 0 0 0 3px rgba(255,255,255,.25)}
.snowscape::before{content:"";position:absolute;left:0;right:0;top:0;aspect-ratio:16/9;z-index:-1;
  background:url(assets/library-snowbank.jpg) center top/100% auto no-repeat;
  background-image:image-set(url(assets/library-snowbank.webp) type("image/webp"),url(assets/library-snowbank.jpg) type("image/jpeg"));
  -webkit-mask-image:linear-gradient(#000 82%,transparent);mask-image:linear-gradient(#000 82%,transparent)}
.ss-snow{position:absolute;inset:0;z-index:4;pointer-events:none;opacity:.55;
  background-image:radial-gradient(2.2px 2.2px at 20px 30px,#fff 60%,transparent),radial-gradient(1.6px 1.6px at 90px 120px,#fff 60%,transparent),radial-gradient(2.6px 2.6px at 150px 60px,#fff 60%,transparent),radial-gradient(1.4px 1.4px at 60px 170px,#fff 60%,transparent),radial-gradient(2px 2px at 180px 190px,#fff 60%,transparent);
  background-size:200px 220px;animation:fall 14s linear infinite}
.ss-snow.s2{background-size:300px 320px;opacity:.35;animation-duration:22s;filter:blur(.6px)}
@keyframes fall{from{background-position:0 0}to{background-position:40px 220px}}
.ss-snow.s2{animation-name:fall2}@keyframes fall2{from{background-position:0 0}to{background-position:-60px 320px}}

.books{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr}
.book{display:flex;flex-direction:column;align-items:stretch;min-width:0}
/* each half of the painting; --x/--b = where that book's snow hollow is */
.book-stage{--x:47%;--b:20.5%;--h:41%;position:relative;aspect-ratio:8/9;perspective:1100px}
.book:nth-child(even) .book-stage{--x:54%;--b:20%}
/* soft contact shadow in the hollow */
.book-stage::before{content:"";position:absolute;left:var(--x);bottom:calc(var(--b) - 3%);width:40%;height:9%;transform:translateX(-50%);border-radius:50%;
  background:radial-gradient(closest-side,rgba(40,40,110,.55),rgba(60,60,140,.25) 60%,transparent);filter:blur(4px);z-index:0}
/* the book, standing upright in the snow */
.book-3d{--t:18px;--r:-20deg;--z:-3deg;position:absolute;left:var(--x);bottom:var(--b);height:var(--h);z-index:1;display:block;transform-style:preserve-3d;
  transform:translateX(-50%) rotateY(var(--r)) rotateZ(var(--z));transform-origin:50% 100%;
  transition:transform .4s cubic-bezier(.2,.8,.3,1.25),filter .35s;outline:none;filter:drop-shadow(10px 12px 10px rgba(25,25,90,.45))}
.book:nth-child(even) .book-3d{--r:20deg;--z:3deg}
.book-front{display:block;height:100%;width:auto;border-radius:2px 5px 5px 2px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.2)}
.book-3d::before{content:"";position:absolute;inset:0;border-radius:2px 5px 5px 2px;background:linear-gradient(90deg,rgba(0,0,0,.35),rgba(255,255,255,.2) 3%,rgba(0,0,0,.12) 5%,transparent 9%,transparent 78%,rgba(255,255,255,.14)),linear-gradient(180deg,rgba(200,190,255,.12),transparent 40%,rgba(70,60,150,.18));z-index:1;pointer-events:none;transform:translateZ(.5px)}
.book-spine{position:absolute;left:0;top:0;bottom:0;width:var(--t);transform-origin:0 50%;transform:rotateY(90deg);background-size:auto 100%;background-position:left center;filter:brightness(.55) saturate(1.2)}
.book-pages{position:absolute;right:0;top:3px;bottom:3px;width:calc(var(--t) - 2px);background:repeating-linear-gradient(90deg,#f4ecd8 0 1px,#e2d6bb 1px 2px);transform:translateZ(calc(var(--t) * -1)) rotateY(-90deg);transform-origin:100% 50%}
/* soft painted snow piled on top */
.book-cap{position:absolute;left:-7%;right:-7%;top:-13px;height:24px;z-index:2;transform:translateZ(2px);pointer-events:none;
  background:radial-gradient(ellipse 30% 70% at 22% 70%,#fff 55%,rgba(255,255,255,0) 72%),radial-gradient(ellipse 32% 85% at 52% 62%,#fff 55%,rgba(255,255,255,0) 72%),radial-gradient(ellipse 28% 70% at 80% 72%,#f4f2ff 55%,rgba(255,255,255,0) 72%),
    radial-gradient(ellipse 7% 60% at 34% 100%,#fff 50%,transparent 70%);filter:blur(.6px) drop-shadow(0 3px 2px rgba(80,80,170,.35))}
.book-3d:hover,.book-3d:focus-visible,.book-3d:active{transform:translateX(-50%) rotateY(calc(var(--r) * .3)) rotateZ(0) translateY(-20px) scale(1.04);filter:drop-shadow(0 0 20px rgba(255,214,120,.85)) drop-shadow(10px 22px 16px rgba(25,25,90,.45))}
.book-3d:focus-visible{outline:3px solid var(--gold);outline-offset:8px}
/* the painted-looking drift hugging the book's base */
.snowdrift{position:absolute;left:var(--x);bottom:calc(var(--b) - 5.5%);width:52%;height:13%;transform:translateX(-50%);z-index:2;pointer-events:none;border-radius:50%;
  background:radial-gradient(ellipse 34% 62% at 30% 44%,#fff 40%,rgba(255,255,255,0) 72%),radial-gradient(ellipse 38% 66% at 64% 42%,#fbfaff 40%,rgba(255,255,255,0) 72%),
    radial-gradient(ellipse 50% 50% at 50% 66%,#e9e7fb 45%,rgba(220,218,250,0) 75%),radial-gradient(ellipse 20% 30% at 46% 30%,rgba(255,255,255,.95),transparent 70%);
  filter:blur(1.6px) drop-shadow(0 4px 5px rgba(60,60,150,.3))}
.snowdrift::after{content:"";position:absolute;left:28%;top:22%;width:6px;height:6px;border-radius:50%;background:#fff;box-shadow:0 0 6px 2px #fff,52px 8px 0 -1px #fff,90px -2px 0 -2px #fff}

/* title card on the snow below each book */
.book-info{margin:-8% 22px 0;z-index:3;padding:16px 16px 14px;text-align:center;border-radius:18px;position:relative;flex:1;display:flex;flex-direction:column;align-items:center;
  background:linear-gradient(180deg,#fffdf7,var(--cream));box-shadow:0 10px 22px rgba(40,60,120,.28),0 0 0 3px #fff,0 0 0 6px var(--red)}
.book-info::before{content:"";position:absolute;top:-14px;left:50%;width:26px;height:26px;transform:translateX(-50%);background:url(assets/deco-holly.png) center/contain no-repeat}
.book-info h3{margin:4px 0 4px;font:400 clamp(1.25rem,3.6vw,1.65rem)/1.15 Mountains,Fredoka,system-ui,sans-serif;color:var(--red-d)}
.book-sub{margin:0 0 6px;color:var(--green-d);font-weight:600;font-style:italic;font-size:.95rem;line-height:1.3}
.book-by{margin:0 0 12px;color:#6b5240;font-size:.92rem}
.cta-amz{margin-top:auto;flex:0 0 auto;width:100%;background:linear-gradient(180deg,#ffd77a,#f0a92a);color:#3b2208;box-shadow:0 5px 0 #b06f10,0 10px 18px rgba(0,0,0,.2)}

/* phones: one book per crop of the painting */
@media (max-width:640px){
  .library{padding:0 8px}
  .lib-banner h2{padding:10px 18px 12px}
  .lib-banner::before,.lib-banner::after{width:26px}.lib-banner::before{left:-4px}.lib-banner::after{right:-4px}
  .snowscape{background:none;box-shadow:none;padding:0;border-radius:0;overflow:visible}
  .snowscape::before,.ss-snow{display:none}
  .books{grid-template-columns:1fr;gap:22px}
  .book{position:relative;overflow:hidden;border-radius:26px;padding:0 0 18px;isolation:isolate;
    background:linear-gradient(180deg,#6f79c8,#4b58a8 70%,#3c4996);box-shadow:0 14px 30px rgba(0,0,0,.45),inset 0 0 0 3px rgba(255,255,255,.25)}
  .book::after{content:"";position:absolute;inset:0;z-index:4;pointer-events:none;opacity:.55;
    background-image:radial-gradient(2px 2px at 20px 30px,#fff 60%,transparent),radial-gradient(1.5px 1.5px at 90px 120px,#fff 60%,transparent),radial-gradient(2.4px 2.4px at 150px 60px,#fff 60%,transparent),radial-gradient(1.4px 1.4px at 60px 170px,#fff 60%,transparent);
    background-size:180px 200px;animation:fall 14s linear infinite}
  .book-stage{aspect-ratio:auto;height:310px;--x:50%;--b:17%;--h:60%;
    background:url(assets/library-snowbank.jpg) 0% 72%/auto 125% no-repeat;
    background-image:image-set(url(assets/library-snowbank.webp) type("image/webp"),url(assets/library-snowbank.jpg) type("image/jpeg"));
    -webkit-mask-image:linear-gradient(#000 85%,transparent);mask-image:linear-gradient(#000 85%,transparent)}
  .book:nth-child(even) .book-stage{--x:50%;--b:17%;background-position:100% 72%}
  .book-3d{--t:14px}
  .snowdrift{width:66%}
  .book-stage::before{width:52%}
  .book-info{margin:-26px 12px 0}
}
@media (prefers-reduced-motion:reduce){.ss-snow,.book::after{animation:none!important}}
/* painted-snow tuning: match the painting's moonlit lavender snow */
.book-stage{--h:45%}
.snowdrift{width:58%;height:10%;bottom:calc(var(--b) - 4.5%);opacity:.95;
  background:radial-gradient(ellipse 30% 46% at 34% 40%,rgba(250,248,255,.95) 30%,rgba(250,248,255,0) 75%),radial-gradient(ellipse 32% 48% at 66% 42%,rgba(244,241,255,.9) 30%,rgba(244,241,255,0) 75%),
    radial-gradient(ellipse 50% 55% at 50% 60%,rgba(206,200,240,.95) 40%,rgba(190,184,236,0) 78%);filter:blur(2.4px) drop-shadow(0 3px 4px rgba(60,60,150,.25))}
.snowdrift::after{opacity:.8;width:4px;height:4px}
.book-cap{filter:blur(.8px) drop-shadow(0 3px 2px rgba(80,80,170,.35));opacity:.95}
.book-front{filter:saturate(.95) brightness(.96)}
@media (max-width:640px){.book-stage{--h:60%}.book:nth-child(odd) .book-stage{--x:47%}.snowdrift{width:70%}}
.snowdrift{height:12%;bottom:calc(var(--b) - 5.5%)}