.j-3d-stage{position:relative;display:grid;place-items:center;perspective:1450px;perspective-origin:42% 45%;isolation:isolate}
.j-3d-stage::before{content:'';position:absolute;z-index:-1;right:0;bottom:-22px;left:8%;height:42px;border-radius:50%;background:radial-gradient(ellipse,rgba(15,23,42,.34) 0,rgba(15,23,42,.16) 42%,transparent 74%);filter:blur(9px);transform:rotate(-2deg) scaleX(.96);transition:transform .55s ease,opacity .55s ease;opacity:.9}
.j-cover-card{overflow:visible;border:1px solid rgba(255,255,255,.15);border-radius:5px 14px 14px 5px;background:linear-gradient(118deg,rgba(255,255,255,.13) 0,transparent 18%,transparent 72%,rgba(6,18,32,.24) 100%),radial-gradient(circle at 78% 18%,rgba(104,153,190,.18),transparent 30%),linear-gradient(145deg,#314a60 0,#263d52 48%,#1d3144 100%);box-shadow:3px 3px 0 #172a3b,9px 9px 0 rgba(226,232,240,.82),12px 12px 1px rgba(148,163,184,.55),24px 30px 38px rgba(15,23,42,.3),inset 0 1px 0 rgba(255,255,255,.2),inset -14px 0 24px rgba(4,16,28,.17);transform:rotateY(-22deg) rotateX(2deg) rotateZ(-1deg) translateZ(0);transform-origin:left center;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.2, .75, .25, 1),box-shadow .55s ease;will-change:transform}
.j-cover-card::before{content:'';position:absolute;z-index:3;top:-1px;bottom:-1px;left:-1px;width:22px;border:1px solid rgba(255,255,255,.12);border-radius:5px 2px 2px 5px;background:linear-gradient(90deg,rgba(0,0,0,.34),rgba(255,255,255,.11) 35%,rgba(0,0,0,.18) 82%,rgba(255,255,255,.08)),#20374b;box-shadow:5px 0 9px rgba(5,18,31,.34),inset -1px 0 rgba(255,255,255,.16);transform:translateZ(7px)}
.j-cover-card::after{content:'';position:absolute;z-index:-1;top:10px;right:-13px;bottom:8px;width:14px;border-radius:0 4px 4px 0;background:repeating-linear-gradient(to bottom,#f8fafc 0 2px,#d7dee6 2px 3px,#eef2f6 3px 6px);box-shadow:inset 3px 0 5px rgba(71,85,105,.2),2px 2px 4px rgba(15,23,42,.18);transform:rotateY(84deg);transform-origin:left center}
.j-cover-card>div{position:relative;z-index:4;width:100%;height:100%;transform:translateZ(13px);pointer-events:none}
.j-cover-card>div::before{content:'WS';position:absolute;top:0;right:0;display:grid;width:42px;height:42px;place-items:center;border:1px solid rgba(218,183,112,.82);border-radius:50%;color:#e7c987;background:rgba(7,24,39,.18);box-shadow:inset 0 0 0 3px rgba(218,183,112,.08),0 4px 12px rgba(3,13,24,.2);font-size:.64rem;font-weight:800;letter-spacing:.08em}
.j-cover-card>div::after{content:'WORLD SLEEP JOURNAL  ·  2026';position:absolute;right:0;bottom:1px;left:0;padding-top:13px;border-top:1px solid rgba(231,201,135,.58);color:rgba(239,220,174,.92);font-size:.58rem;font-weight:700;letter-spacing:.16em;line-height:1.4;text-transform:uppercase}
.j-cover-title{position:relative;display:inline-block;margin-top:14px;color:#f8fafc;letter-spacing:-.045em;text-shadow:0 2px 0 rgba(255,255,255,.08),0 5px 13px rgba(2,12,22,.38)}
.j-cover-title::after{content:'';display:block;width:44px;height:3px;margin-top:20px;border-radius:99px;background:linear-gradient(90deg,#e7c987,rgba(231,201,135,.14));box-shadow:0 2px 5px rgba(5,17,29,.25)}
@media (hover:hover) and (pointer:fine){
.j-3d-stage:hover .j-cover-card{transform:rotateY(-8deg) rotateX(1deg) rotateZ(0) translateY(-8px) scale(1.025);box-shadow:2px 2px 0 #172a3b,7px 8px 0 rgba(226,232,240,.86),10px 10px 1px rgba(148,163,184,.52),20px 38px 42px rgba(15,23,42,.25),inset 0 1px 0 rgba(255,255,255,.2),inset -12px 0 22px rgba(4,16,28,.13)}
.j-3d-stage:hover::before{opacity:.65;transform:translateY(7px) rotate(-1deg) scaleX(.86)}
}
@media (max-width:767px){
.j-3d-stage{width:214px;height:298px;margin-bottom:28px;perspective:1100px}
.j-cover-card{padding:24px 23px 24px 30px;transform:rotateY(-15deg) rotateX(1.5deg) rotateZ(-1deg);box-shadow:2px 2px 0 #172a3b,7px 8px 0 rgba(226,232,240,.85),10px 10px 1px rgba(148,163,184,.5),18px 27px 32px rgba(15,23,42,.27),inset -12px 0 20px rgba(4,16,28,.15)}
.j-cover-card::before{width:19px}
.j-cover-card::after{right:-10px;width:11px}
.j-cover-card>div{transform:translateZ(10px)}
.j-cover-card>div::before{width:36px;height:36px;font-size:.56rem}
.j-cover-card>div::after{font-size:.48rem;letter-spacing:.12em}
.j-cover-title{font-size:2.55rem}
}
@media (prefers-reduced-motion:reduce){
.j-3d-stage::before,.j-cover-card{transition:none}
}