/* Moldura botânica aprovada: galhos contínuos nas margens das folhas. */
body{--frame-opacity:.78;--frame-filter:none}
.paper{position:relative;isolation:isolate}
.paper.left{padding:68px 34px 62px 80px}
.paper.right{padding:68px 80px 62px 34px}
.paper::before{content:"";position:absolute;inset:5px 3px;z-index:0;pointer-events:none;user-select:none;background:url('assets/moldura-botanica.svg') center/100% 100% no-repeat;opacity:var(--frame-opacity);filter:var(--frame-filter)}
.paper::after{content:none}
.paper.right::before{transform:scaleX(-1)}
.paper>*{position:relative;z-index:1}
body[data-theme="codigo0"]{--frame-filter:sepia(.6) hue-rotate(110deg) saturate(.6) brightness(1.8);--frame-opacity:.5}
body[data-theme="catarse"]{--frame-filter:sepia(.5) hue-rotate(295deg) saturate(.6) brightness(1.5);--frame-opacity:.54}
body[data-theme="1997"]{--frame-filter:saturate(.75);--frame-opacity:.75}
/* A mesma borda acompanha a folha durante a virada. */
.turn-sheet .paper{position:absolute;padding:68px 80px 62px 34px}
.turn-sheet.forward .sheet-front::before,.turn-sheet.backward .sheet-back::before{transform:scaleX(-1)}
.turn-sheet .sheet-back{padding:68px 34px 62px 80px}
.turn-sheet.backward .sheet-front{padding:68px 34px 62px 80px}.turn-sheet.backward .sheet-back{padding:68px 80px 62px 34px}
@media(max-width:1050px){.paper.left,.turn-sheet .sheet-back{padding:58px 25px 58px 65px}.paper.right,.turn-sheet .paper{padding:58px 65px 58px 25px}.turn-sheet .sheet-back,.turn-sheet.backward .sheet-front{padding:58px 25px 58px 65px}.turn-sheet.backward .sheet-back{padding:58px 65px 58px 25px}}
@media(max-width:740px){.paper.left,.paper.right,.turn-sheet .paper,.turn-sheet .sheet-back,.turn-sheet.backward .sheet-front,.turn-sheet.backward .sheet-back{padding:54px 30px 56px 62px}.paper.right::before{transform:none}.paper::before{opacity:calc(var(--frame-opacity)*.9)}}
@media(max-width:380px){.paper.left,.paper.right{padding-left:52px;padding-right:24px}}
@media print{.paper::before{display:none!important}}