@layer normalize{html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace,monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-.25em}sup{top:-.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,[type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner,[type=button]::-moz-focus-inner,[type=reset]::-moz-focus-inner,[type=submit]::-moz-focus-inner{border-style:none;padding:0}button:-moz-focusring,[type=button]:-moz-focusring,[type=reset]:-moz-focusring,[type=submit]:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:.35em .75em .625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type=checkbox],[type=radio]{box-sizing:border-box;padding:0}[type=number]::-webkit-inner-spin-button,[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{-webkit-appearance:textfield;outline-offset:-2px}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}}*{box-sizing:border-box}h1{position:fixed;bottom:2rem;right:2rem;margin:0;font-size:3rem;font-family:Fredoka One,cursive;color:#1a2632}:root{--bg: #2a3d51;--body: #fff;--stripes: #f5b1a3;--flame-1: #eb9947;--flame-2: #fae39e;--paper: #bad9f7;--paper-2: #e8f2fc;--paper-3: #4799eb;--card: #fafafa;--insert: #bad9f7;--bottom-frosting: #f5b1a3;--mid-frosting: #a3f5f5;--top-frosting: #ccf5a3;--balloon-3: 10;--balloon-2: 180;--balloon-1: 90;--size: 35vmin;--height: var(--size);--width: calc(var(--size) * 1.4);--read: 0;--transition: .2s}body{background:var(--bg);min-height:100vh;perspective:1000px;transform-style:preserve-3d;overflow:hidden}input{opacity:0;position:fixed;right:100%}label{height:100vh;width:100vw;position:fixed;top:0;left:0;z-index:2;transform-style:preserve-3d;transform:translateZ(100px)}:checked~.scene{--read: 1}:checked~.scene .hide-back{backface-visibility:hidden}:checked~.scene .cake__candle{transform:translate(0)}.stamp{height:8vmin;position:absolute;top:50%;left:50%;transform:translate3d(-50%,-50%,1px);filter:saturate(.5)}.barcode{height:6vmin;width:8vmin;position:absolute;bottom:2vmin;right:2vmin;transform:translateZ(1px);--l: #808080;background:repeating-linear-gradient(90deg,var(--l) 0 1%,transparent 1% 2%,var(--l) 2% 4%,transparent 4% 5%,var(--l) 5% 10%)}.scene{display:flex;align-items:center;justify-content:center;transform:rotateY(calc(var(--x, 0) * 1deg)) rotateX(calc(var(--y, 0) * 1deg));height:100vh;width:100vw;transform-style:preserve-3d}.card{height:calc(var(--height));position:relative;width:var(--width);transform-style:preserve-3d;transform:translateY(calc(var(--read, 0) * 25%)) rotateX(calc(var(--read, 0) * 90deg));transition:transform var(--transition)}.card__confetti{--size: calc(var(--s) * 1vmin);height:var(--size);width:var(--size);position:absolute;top:0%;left:50%;transition:transform calc(var(--read) * var(--transition)) calc(var(--read) * var(--transition)),opacity calc(var(--read) * var(--transition)) calc((var(--read) * var(--transition)) * 2);transform:scale(var(--read)) translate(-50%,10%) rotate(calc(var(--r) * 1deg)) rotateX(calc(var(--a) * 1deg)) skew(calc(var(--sk) * 1deg)) translateY(calc(var(--height) * (var(--read, 0) * 1.5)));opacity:calc(1 - var(--read))}.card__confetti:after{background:hsl(var(--hue),80%,80%);content:"";position:absolute;height:100%;width:100%;transition:transform calc(var(--read) * var(--transition)) calc(var(--read) * var(--transition));transform:rotateX(calc((var(--rx) * var(--read)) * 1deg)) rotateY(calc((var(--ry) * var(--read)) * 1deg))}.card__content{transform-style:preserve-3d;height:100%;width:100%}.card__content--bottom:before{content:"";position:absolute;top:0;left:0;height:100%;width:100%;background:var(--insert);clip-path:polygon(0 0,15% 0,15% 30%,85% 30%,85% 0,100% 0,100% 100%,0 100%)}.card__content--top:before{content:"";position:absolute;top:0;left:0;height:100%;width:100%;background:var(--insert);clip-path:polygon(0 0,100% 0,100% 100%,85% 100%,85% 70%,78% 70%,78% 46%,72.4% 46%,72.4% 26.8%,27.6% 26.8%,27.6% 46%,22% 46%,22% 70%,15% 70%,15% 100%,0 100%)}.card__message{position:absolute;padding:1rem;font-family:sans-serif;bottom:0;left:50%;transform:translate(-50%)}.card__part{height:var(--h, 100%);width:var(--w, 100%);position:absolute;top:0%;left:50%;transform:translate(-50%);transform-style:preserve-3d}.card__inner{--h: 96%;--w: 95%;transform:translate3d(-50%,0,calc(var(--height) * 0))}.card__sleeve{height:100%;width:100%}.message{font-size:4.5vmin;font-family:Fredoka One,cursive;color:#1a1a1a;display:flex;flex-direction:column;position:absolute;top:50%;left:20%;transform:translate3d(0,-50%,0);margin:0}.card__message{font-family:Fredoka One,cursive;color:#1a1a1a;font-size:4vmin;white-space:nowrap;position:absolute;top:50%;left:50%;transform:translate(-50%)}.flip{transform-style:preserve-3d}.flip__piece{height:100%;position:absolute;width:100%;transform-origin:50% 0;transform-style:preserve-3d;transition:transform var(--transition)}.flip__piece--front{transform:rotateX(calc(var(--front) * 1deg))}.flip__piece--back{transform:rotateX(calc(var(--rear) * 1deg))}.card__inner{--rear: calc(-1.75 + (var(--read, 0) * 2));--front: calc(1.75 + (var(--read, 0) * 88))}.card__outer{--rear: calc(-2 + (var(--read, 0) * 2));--front: calc(2 + (var(--read, 0) * 88))}.card__content-container{transform-style:preserve-3d;height:100%;width:100%;top:0;left:0;position:absolute}.card__content-container--inner-top{transform:rotate(180deg) translateZ(0)}.card__content-container--inner-bottom{transform:translateZ(0)}.cover__content{height:100%;width:100%;background:var(--card);position:absolute;font-size:2vmin;transform-style:preserve-3d}.cover__content--front,.cover__content--rear{transform:translateZ(1px)}.front-cover__front,.rear-cover__front{background:var(--card)}.front-cover__front:after,.rear-cover__front:after{content:"";position:absolute;top:0%;left:50%;transform:translate3d(-50%,0,0);background:var(--paper-3);height:95%;width:95%}.rear-cover__front:after{transform:translate(-50%,0,2px)}.cake__section{position:absolute;transform-style:preserve-3d;transition:var(--transition)}.cake__section--top{height:80%;width:80%;left:50%;bottom:0}.cake__section--top-top{transform:translate(-50%) rotateX(calc(var(--read, 0) * 90deg)) translate3d(0,-100%,calc(var(--read, 0) * 0px)) rotateX(calc(var(--read, 0) * -90deg));transform-origin:50% 100%;background:var(--paper)}.cake__section--top-front{background:var(--paper-2);transform-origin:50% 100%;transform:translate(-50%,-100%) rotateX(calc(var(--read, 0) * 90deg))}.cake__section--mid{height:80%;width:80%;left:50%}.cake__section--mid-front{bottom:0;transform-origin:50% 0;transform:translate3d(-50%,0,0) rotateX(calc((180 - (var(--read, 0) * -90)) * 1deg));background:var(--paper-2)}.cake__section--mid-top{background:transparent;bottom:0;transform-origin:50% 100%;transform:translate(-50%) rotateX(calc(var(--read, 0) * 90deg)) translate3d(0,-100%,calc(var(--read, 0) * 0px)) rotateX(calc(var(--read, 0) * -90deg))}.cake__section--mid-top:before{content:"";position:absolute;height:100%;width:100%;clip-path:polygon(0 0,10% 0,10% 80%,90% 80%,90% 0,100% 0,100% 100%,0 100%);transform:rotate(180deg);background:var(--paper)}.cake__section--bottom{height:30%;width:70%;left:50%;transition:var(--transition)}.cake__section--bottom-top{background:transparent;transform-origin:50% 100%;bottom:0;transform:translate(-50%,-100%) rotateX(calc(var(--read, 0) * -90deg))}.cake__section--bottom-top:before{content:"";position:absolute;height:100%;width:100%;clip-path:polygon(0 0,10% 0,10% 80%,90% 80%,90% 0,100% 0,100% 100%,0 100%);transform:rotate(180deg);background:var(--paper)}.cake__section--bottom-front{background:var(--paper-2);top:0;transform-origin:50% 0;transform:translate(-50%,100%) rotateX(calc(var(--read, 0) * 90deg))}.section{height:100%;width:100%}.section__piece{position:absolute;height:100%;width:100%;transform-style:preserve-3d}.section__piece--back{transform:rotateY(180deg)}.balloon{overflow:visible!important;height:6vmin;position:absolute;left:calc(var(--x, 0) * 1%);top:calc(var(--y, 0) * 1%);animation:float calc(var(--s, 0) * 1s) calc(var(--d, 0) * 1s) infinite}.balloon__body{fill:hsla(var(--hue, 0),80%,50%,.75)}.balloon__glare{fill:#ffffffbf}.balloon__shadow{fill:hsla(var(--hue, 0),80%,30%,.75)}.balloon__string{stroke:#b3914d}.balloon:nth-of-type(1){--hue: var(--balloon-1);--x: 58;--y: 28}.balloon:nth-of-type(2){--hue: var(--balloon-2);--x: 68;--y: 20}.balloon:nth-of-type(3){--hue: var(--balloon-3);--x: 65;--y: 40}.cake{overflow:visible!important;width:100%;height:100%;transform:translateZ(1px)}.cake__frosting{fill:var(--frosting)}.cake__eyes{transform-origin:50% 24px;animation:blink 5s infinite}.cake__body{fill:var(--body)}.cake--bottom{--frosting: var(--bottom-frosting)}.cake--mid{--frosting: var(--mid-frosting)}.cake--top{--frosting: var(--top-frosting)}.cake--bottom,.cake--mid{transform:translateZ(-1px) rotate(180deg)}.cake--mid .cake__sprinkles,.cake--top .cake__sprinkles{transform:translateY(-8px)}.cake__candle{transform:translateY(12px);transition:var(--transition)}.cake__sprinkle{fill:hsl(var(--hue),80%,70%)}.candle__body{fill:var(--body)}.candle__stripes{fill:var(--stripes)}.candle__flame{animation:scribble .5s infinite}.candle__flame-outer{fill:var(--flame-1)}.candle__flame-inner{fill:var(--flame-2)}@keyframes blink{0%,47%,49%,51%,to{transform:scaleY(1)}48%,50%{transform:scaleY(.1)}}@keyframes float{0%,to{transform:translateZ(calc(var(--s) * 1px))}50%{transform:translate3d(0,-25%,calc(var(--s) * 1px))}}@keyframes scribble{0%{filter:url(#scribble--0)}25%{filter:url(#scribble--1)}50%{filter:url(#scribble--2)}75%{filter:url(#scribble--3)}to{filter:url(#scribble--4)}}