:root{--ink:#080d1c;--surface:#0d1426;--cream:#f7f0e7;--rose:#eec4b8;--gold:#c9a584;--muted:#aaa9b6;--line:rgba(224,209,201,.15);--serif:'Italiana',Georgia,serif;--sans:'DM Sans',system-ui,sans-serif;color-scheme:dark}
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var(--line);transition:color .2s}.chapter-nav a:first-child{padding-left:27px}.chapter-nav a:last-child{border-right:0}.chapter-nav a:hover{color:var(--rose)}.chapter-nav a>span{position:absolute;left:13px;top:11px;font-family:var(--sans);font-size:10px;color:var(--gold)}.chapter-nav a:first-child>span{left:0}.chapter-nav small{display:block;font-size:9px;font-family:var(--sans);letter-spacing:.12em;color:#817f90;margin-top:4px}.section{padding:120px 8%;position:relative}.section-intro h2,.section-heading h2{margin:22px 0}.section-intro>p{font-size:15px}.letter-section{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:12%;max-width:1600px;margin:auto}.letter-preview{background:#f2e9dc;color:#30292c;padding:52px 48px 42px;position:relative;box-shadow:14px 14px 0 rgba(223,187,164,.06);border:1px solid #fff3df;transform:rotate(-2deg)}.letter-preview .eyebrow{color:#9b7463;font-size:10px}.letter-preview h3{font-size:46px;line-height:1.1;margin:25px 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h2{font-size:clamp(2.5rem,4.2vw,4.2rem);margin:26px 0;line-height:1.2}.wish-section>p:not(.wish-footnote){font-size:15px}.wish-section .primary-button{margin-top:30px;padding-inline:35px}.wish-footnote{font-size:11px;margin-top:22px;color:#877b8d;min-height:20px}footer{padding:32px 5.5%;border-top:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:25px}footer .brand{font-size:10px}footer p{font-size:11px}footer>span{font-size:9px;letter-spacing:.14em;color:#aa8c87;max-width:220px;overflow-wrap:anywhere}dialog{color:var(--cream);border:1px solid var(--line);padding:0;background:var(--surface);max-height:90svh;overflow:auto}dialog::backdrop{background:#030712d6;backdrop-filter:blur(10px)}dialog[open]{animation:dialog-in .3s ease-out}body:has(dialog[open]){overflow:hidden}.dialog-close{position:absolute;top:20px;right:22px;width:36px;height:36px;border:1px solid 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var(--line);backdrop-filter:blur(15px)}.editor-footer>span{color:#a49aab;font-size:12px}.editor-footer .primary-button{padding:14px 22px;font-size:13px;white-space:nowrap}.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);padding:14px 23px;background:#f1d6cb;color:#402e32;z-index:100;border-radius:9px;max-width:calc(100% - 32px);font-size:13px;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;box-shadow:0 10px 30px #0004}.toast.visible{opacity:1;transform:translate(-50%,0)}#confetti{position:fixed;inset:0;width:100%;height:100%;z-index:90;pointer-events:none}body.recipient .creator-only{display:none!important}.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s ease-out,transform .8s ease-out}.reveal.visible{opacity:1;transform:translateY(0)}
@keyframes rise{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes moon-reveal{from{opacity:0;transform:scale(1.035)}to{opacity:1;transform:scale(1)}}@keyframes pulse{50%{opacity:.3;transform:translateY(4px)}}@keyframes dialog-in{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
@media(min-width:1700px){.hero-art{object-position:center 44%}.hero{padding-left:max(8%,calc((100vw - 1500px)/2))}.hero h1{font-size:112px}}
@media(max-width:1100px){.site-header{padding-inline:4%;gap:20px}nav{gap:18px}nav a{font-size:12px}.header-actions{gap:15px}.hero{padding-inline:6%;min-height:700px}.hero-content{width:68%}.hero h1{font-size:clamp(4rem,7vw,6rem)}.hero-shade{background:linear-gradient(90deg,#080d1c90,rgba(8,13,28,.2) 70%),linear-gradient(0deg,var(--ink),transparent 25%)}.moon-annotation{right:8%;bottom:17%}.moon-annotation em{font-size:25px}.section{padding-inline:6%}.letter-section{gap:8%}.letter-preview{padding:40px 35px}.letter-preview h3{font-size:40px}.memory-photo{height:275px}.memory-grid{gap:25px}.memory-card h3{font-size:25px}.chapter-nav{padding-inline:6%}.chapter-nav a{font-size:19px;padding-left:35px}.reason-card{padding:28px}.reason-card h3{font-size:29px}}
@media(max-width:850px){nav{display:none}.hero{min-height:720px;height:92svh}.hero-content{width:80%}.hero h1{font-size:clamp(3.8rem,8.4vw,5rem)}.hero-art{object-position:60% center;opacity:.75}.hero-shade{background:linear-gradient(90deg,#080d1cc7,#080d1c38 85%),linear-gradient(0deg,var(--ink),transparent 50%)}.moon-annotation{right:8%;bottom:12%;text-align:right}.hero-bottom>span:first-child{display:none}.hero-bottom{bottom:25px}.chapter-nav{grid-template-columns:1fr 1fr;row-gap:24px;padding:27px 6%}.chapter-nav a:nth-child(2){border:0}.chapter-nav a:nth-child(3){padding-left:27px}.chapter-nav a:nth-child(3)>span{left:0}.section{padding-top:90px;padding-bottom:90px}.letter-section{gap:6%}.letter-preview h3{font-size:34px}.letter-preview{padding:35px 27px}.letter-preview p{font-size:14px}.postmark{width:62px;height:62px;font-size:7px;right:18px;bottom:25px}.memory-photo{height:235px}.memory-grid{gap:18px}.memory-card{padding:10px 10px 19px}.memory-card h3{font-size:23px;margin-inline:4px}.memory-card p{font-size:11px;margin-inline:4px}.constellation-layout{grid-template-columns:1fr;gap:35px;margin-top:30px}.star-map{max-width:600px;width:100%;margin:auto}.reason-card{max-width:540px;width:100%;margin:auto;min-height:280px}.reason-card p{min-height:0}.reason-controls{margin-top:20px}.section-heading>p{font-size:13px}footer{flex-wrap:wrap;justify-content:center;gap:15px;text-align:center}footer p{order:3;width:100%}}
@media(max-width:600px){.site-header{padding:21px 6%;gap:12px}.brand{font-size:10px;gap:9px;letter-spacing:.12em}.brand svg{width:28px;height:28px}.header-actions{gap:14px}.sound-button>span{display:none}.personalize-button{padding:8px 11px;font-size:10px}.personalize-button svg{width:12px;height:12px}.hero{min-height:720px;height:100svh;padding:140px 7% 155px;align-items:center}.hero-art{object-position:68% center;opacity:.65}.hero-shade{background:linear-gradient(90deg,#080d1cc7,#080d1c66),linear-gradient(0deg,var(--ink),transparent 70%)}.hero-content{width:100%}.hero .eyebrow{font-size:9px;letter-spacing:.16em;gap:8px}.hero h1{font-size:clamp(3.3rem,12.2vw,4.8rem);line-height:1.08;margin:24px 0}.hero-copy{font-size:14px;line-height:1.85;margin-bottom:28px}.hero-copy br{display:none}.primary-button{padding:16px 23px;font-size:13px}.hero-meta{font-size:8px;margin-top:24px;gap:7px}.moon-annotation{bottom:89px;right:8%;text-align:right;transform:rotate(-4deg)}.moon-annotation>span{font-size:8px}.moon-annotation em{font-size:22px}.hero-bottom{left:7%;right:7%;bottom:26px}.birthday-tag{font-size:8px;max-width:170px}.scroll-hint{font-size:10px;gap:10px}.chapter-nav{padding:25px 7%;gap:24px 10px}.chapter-nav a{font-size:18px;padding-right:4px;padding-left:28px}.chapter-nav a:nth-child(odd){padding-left:25px}.chapter-nav a>span{left:6px;font-size:8px}.chapter-nav small{font-size:7px;letter-spacing:.07em}.section{padding:75px 7%}.section-intro h2,.section-heading h2{font-size:48px;margin:20px 0}.eyebrow{font-size:9px;letter-spacing:.16em}.section-intro p{font-size:13px}.letter-section{grid-template-columns:1fr;gap:40px}.letter-preview{margin:0 6px;padding:34px 30px}.letter-preview h3{font-size:40px}.letter-preview p{font-size:14px}.letter-preview .eyebrow{font-size:9px}.letter-star{top:26px;right:25px}.text-button{margin-bottom:30px}.letter-signature [data-person]{font-size:28px}.section-heading{display:block;margin-bottom:32px}.section-heading>p{padding:0;font-size:13px}.memory-grid{grid-template-columns:1fr;gap:30px;padding:0 13px}.memory-card{padding:13px 13px 23px}.memory-card:nth-child(2){margin-top:0}.memory-photo{height:330px}.memory-card h3{font-size:31px;margin:18px 8px 7px}.memory-card p{font-size:13px;margin:0 8px}.memory-note{font-size:12px;line-height:1.8;margin-top:33px}.memory-note .inline-button{display:inline}.constellation-section{padding-top:40px}.star-map{aspect-ratio:640/410}.constellation-lines{height:92.7%;top:0}.constellation-star{top:calc(var(--y)*.927)}.constellation-star>span{font-size:28px}.map-label{font-size:8px;letter-spacing:.12em}.reason-card{padding:30px}.reason-card h3{font-size:34px}.reason-card p{font-size:14px}.wish-section{padding-top:50px}.wish-section h2{font-size:38px;line-height:1.15}.wish-section>p:not(.wish-footnote){font-size:14px;max-width:270px;margin-inline:auto}.wish-footnote{font-size:10px}.wish-orbit{width:78px;height:78px}.wish-orbit:before{width:102px;height:102px}footer{padding:27px 7%;gap:10px}footer .brand{font-size:9px}footer>span{font-size:8px}footer p{font-size:10px}.letter-dialog{padding:50px 28px 35px;max-height:85svh}.letter-dialog .eyebrow{font-size:8px}.letter-dialog h2{font-size:39px}.full-letter p{font-size:15px;line-height:1.85}.dialog-star{right:25px;bottom:25px}.editor-dialog{max-height:92svh}.editor-heading{padding:28px 23px 0}.editor-heading h2{font-size:39px}.editor-heading .eyebrow{font-size:8px}.editor-intro{padding:10px 23px 20px;font-size:13px}.editor-tabs{padding:0 23px;overflow-x:auto}.editor-tabs button{font-size:11px;padding-inline:12px}.editor-tabs button:first-child{padding-right:16px}.editor-panel{padding:23px}.form-grid{gap:0 12px}label{font-size:12px}input,textarea{font-size:16px;padding:10px 12px}.editor-footer{padding:17px 23px;gap:12px}.editor-footer>span{font-size:10px;max-width:130px}.editor-footer .primary-button{padding:14px 17px;font-size:12px}.share-option h3{font-size:28px}.share-option p{font-size:13px}.memory-dialog h3{font-size:30px}.memory-dialog p{font-size:13px}}
@media(max-width:360px){.brand{font-size:8px}.personalize-button{font-size:9px}.hero h1{font-size:46px}.hero .eyebrow{font-size:8px}.chapter-nav a{font-size:16px}.section-intro h2,.section-heading h2{font-size:42px}.form-grid{grid-template-columns:1fr}.editor-tabs button{font-size:10px}.memory-photo{height:270px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}#starfield{display:none}}

/* A continuous 3D world, with tactile layers over the live scene. */
body{background:radial-gradient(ellipse at 75% 20%,#201527 0,transparent 55%),#080d1c;overflow-x:clip}main{position:relative;z-index:1}footer{position:relative;z-index:1}#universe3d,#touchParticles{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}#universe3d{z-index:0}#touchParticles{z-index:8}#starfield{z-index:0}.nebula{position:fixed;border-radius:50%;pointer-events:none;z-index:0;filter:blur(70px);mix-blend-mode:screen;transform:translate3d(var(--sky-x,0px),var(--sky-y,0px),0)}.nebula-one{width:80vw;height:60vh;right:-30vw;top:0;background:radial-gradient(ellipse,#8a425728,transparent 65%);animation:nebula-drift 25s ease-in-out infinite alternate}.nebula-two{width:70vw;height:60vh;left:-30vw;bottom:-10vh;background:radial-gradient(ellipse,#51408a26,transparent 65%);animation:nebula-drift 30s ease-in-out infinite alternate-reverse}.webgl-ready .hero-art{opacity:0;transition:opacity 1.2s}.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1c80,transparent 64%),linear-gradient(0deg,#080d1c80,transparent 22%)}.hero-content{z-index:3}.hero .primary-button{position:relative;z-index:4}.moon-stage{position:absolute;right:5%;top:20%;width:min(37vw,520px);aspect-ratio:1;z-index:2;cursor:grab;touch-action:pan-y;border-radius:50%;outline-offset:12px}.dragging-planet .moon-stage,.dragging-planet .wish-orbit{cursor:grabbing}.moon-stage:focus-visible{outline:1px dashed #eec4b8a0}.orbit-label{position:absolute;bottom:-25px;left:0;right:0;display:flex;align-items:center;justify-content:center;gap:10px;font-size:10px;letter-spacing:.1em;color:#b99f9e;pointer-events:none}.orbit-dot{height:4px;width:4px;background:#eec4b8;border-radius:50%;box-shadow:0 0 10px #eec4b8}.interaction-note{font-size:11px;color:#8f7b91;display:flex;align-items:center;gap:8px;margin-top:24px}.interaction-note>span{font-size:18px;color:var(--rose)}.moon-annotation{right:12%;bottom:14%;pointer-events:none;z-index:3}.motion-button{border:0;background:none;padding:0;display:flex;align-items:center;gap:7px;color:#c8bbc9;font-size:11px}.motion-button svg{width:21px;height:21px}.motion-button[aria-pressed=true] svg{animation:orbit-turn 12s linear infinite}.header-actions{gap:17px}nav{gap:23px}.chapter-nav{background:#0b102070;backdrop-filter:blur(12px)}.chapter-planet{position:absolute;aspect-ratio:1;pointer-events:none;z-index:-1}.letter-planet{width:240px;left:-85px;bottom:30px}.memories-planet{width:150px;right:6%;top:36px}.constellation-planet{width:165px;left:50%;top:52%;transform:translate(-50%,-50%)}.wish-orbit{width:115px;height:115px;touch-action:pan-y;cursor:grab}.webgl-ready .wish-orbit{border-color:transparent}.webgl-ready .wish-orbit>span{opacity:0}.webgl-ready .wish-orbit:before{width:160px;height:160px;animation:orbit-turn 25s linear infinite}.memory-grid{perspective:1200px}.memory-card,.letter-preview,.reason-card,.chapter-nav a,.wish-orbit{--tilt-x:0deg;--tilt-y:0deg;--lift:0px;--float-y:0px;--rest:0deg;transform:perspective(1100px) translate3d(0,calc(var(--float-y) - var(--lift)),0) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) rotateZ(var(--rest));transform-style:preserve-3d;transition:transform .35s cubic-bezier(.2,.7,.2,1),box-shadow .35s;will-change:transform}.letter-preview{--rest:-2deg}.memory-card{--rest:-3deg}.memory-card:nth-child(2){--rest:2deg;transform:perspective(1100px) translate3d(0,calc(var(--float-y) - var(--lift)),0) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) rotateZ(var(--rest))}.memory-card:nth-child(3){--rest:-1.5deg;transform:perspective(1100px) translate3d(0,calc(var(--float-y) - var(--lift)),0) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) rotateZ(var(--rest))}.memory-card:hover{transform:perspective(1100px) translate3d(0,calc(var(--float-y) - var(--lift)),0) rotateX(var(--tilt-x)) rotateY(var(--tilt-y)) rotateZ(var(--rest));box-shadow:0 25px 70px #0006}.memory-photo{transform:translateZ(16px)}.memory-card h3,.letter-preview h3{transform:translateZ(24px)}.memory-card p,.letter-preview p{transform:translateZ(12px)}.memory-number{transform:translateZ(35px)}.memory-card:after,.letter-preview:after,.reason-card:after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at var(--shine-x,50%) var(--shine-y,0%),#fff8 0%,#fff0 55%);opacity:0;pointer-events:none;transition:opacity .35s;mix-blend-mode:soft-light}.memory-card:hover:after,.letter-preview:hover:after,.reason-card:hover:after{opacity:.28}.constellation-lines path{stroke:#d1a5a376;stroke-dasharray:7 5;animation:constellation-flow 9s linear infinite}.constellation-lines circle{transform-origin:center;animation:orbit-turn 70s linear infinite}.constellation-star.selected>span{animation:star-breathe 3s ease-in-out infinite}.primary-button{position:relative;overflow:hidden}.primary-button:after{content:'';position:absolute;inset:0;transform:translateX(-150%) skewX(-25deg);background:linear-gradient(90deg,transparent,#fff6,transparent);animation:button-sheen 7s ease-in-out infinite;pointer-events:none}.reason-symbol{animation:star-breathe 4s ease-in-out infinite}.postmark{animation:postmark-drift 9s ease-in-out infinite}.letter-dialog[open]{transform-origin:50% 90%;animation:letter-unfold .65s cubic-bezier(.16,1,.3,1)}.memory-dialog[open]{animation:memory-open .5s cubic-bezier(.16,1,.3,1)}.hero-meta [data-person],footer [data-person]{text-transform:uppercase}.wish-section{background:radial-gradient(ellipse at 50% 50%,#62344315,transparent 65%)}.memories-section{background:linear-gradient(180deg,transparent,#10162940,transparent)}
@keyframes nebula-drift{from{translate:0 0;scale:1}to{translate:-5% 8%;scale:1.2}}@keyframes orbit-turn{to{rotate:360deg}}@keyframes constellation-flow{to{stroke-dashoffset:-120}}@keyframes star-breathe{50%{filter:drop-shadow(0 0 16px #f1c59a);scale:1.12}}@keyframes button-sheen{0%,65%{transform:translateX(-150%) skewX(-25deg)}85%,100%{transform:translateX(150%) skewX(-25deg)}}@keyframes postmark-drift{50%{rotate:-4deg}}@keyframes letter-unfold{from{opacity:0;transform:perspective(1000px) rotateX(15deg) translateY(70px) scale(.88)}to{opacity:1;transform:perspective(1000px) rotateX(0) translateY(0) scale(1)}}@keyframes memory-open{from{opacity:0;transform:perspective(1000px) rotateY(-12deg) scale(.9)}to{opacity:1;transform:perspective(1000px) rotateY(0) scale(1)}}
body[data-motion=quiet] .nebula,body[data-motion=quiet] .motion-button svg,body[data-motion=quiet] .constellation-star.selected>span,body[data-motion=quiet] .primary-button:after,body[data-motion=quiet] .reason-symbol,body[data-motion=quiet] .postmark,body[data-motion=quiet] .constellation-lines path,body[data-motion=quiet] .constellation-lines circle,body[data-motion=quiet] .wish-orbit:before{animation-play-state:paused!important}body[data-motion=quiet] .hero-content,body[data-motion=quiet] .hero-art,body[data-motion=quiet] dialog[open]{animation:none!important}body[data-motion=quiet] .reveal{opacity:1;transform:none}body[data-motion=quiet] .memory-card,body[data-motion=quiet] .letter-preview,body[data-motion=quiet] .reason-card,body[data-motion=quiet] .chapter-nav a,body[data-motion=quiet] .wish-orbit{--float-y:0px!important;--tilt-x:0deg!important;--tilt-y:0deg!important;--lift:0px!important}
@media(max-width:1100px){nav{gap:16px}.header-actions{gap:12px}.motion-button>span{display:none}.moon-stage{right:3%;width:40vw;top:23%}.interaction-note{font-size:10px}.orbit-label{font-size:9px}.hero .hero-content{width:66%}}
@media(max-width:850px){.moon-stage{right:-8%;width:55vw;top:20%}.hero .hero-content{width:80%}.orbit-label{bottom:0}.moon-annotation{bottom:13%;right:8%}.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1cba,transparent),linear-gradient(0deg,#080d1ca0,transparent 60%)}.memories-planet{width:125px;right:-15px;top:70px}.letter-planet{width:190px;left:-90px}.constellation-planet{width:140px}}
@media(max-width:600px){.site-header .brand{font-size:9px}.header-actions{gap:12px}.motion-button svg{width:18px;height:18px}.personalize-button{padding:8px 10px}.moon-stage{right:-22%;top:17%;width:82vw}.hero .hero-content{width:100%}.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1ccc,#080d1c70 65%,transparent),linear-gradient(0deg,#080d1cb0,transparent 75%)}.orbit-label{display:none}.hero h1{position:relative;z-index:3;text-shadow:0 4px 30px #080d1c70}.moon-annotation{bottom:92px}.hero{padding-bottom:165px}.interaction-note{font-size:9px;margin-top:16px;max-width:240px}.letter-planet{width:170px;left:65%;bottom:auto;top:25px;opacity:.6}.memories-planet{width:90px;top:80px;right:5%}.constellation-planet{width:110px}.wish-orbit{width:110px;height:110px}.header-actions .sound-button{min-width:18px}.hero-meta{max-width:95%}}
@media(prefers-reduced-motion:reduce){.memory-card,.letter-preview,.reason-card,.chapter-nav a,.wish-orbit{will-change:auto;--float-y:0px!important;--tilt-x:0deg!important;--tilt-y:0deg!important;--lift:0px!important}.nebula{animation:none}.interaction-note{display:none}}
.moon-stage,.wish-orbit,.orbit-label{user-select:none;-webkit-user-select:none}body.dragging-planet{user-select:none;-webkit-user-select:none}

/* Version 4 carries the original moon's peach light and rose nebula into 3D. */
body{background:radial-gradient(ellipse at 80% 35%,#5b304545,transparent 62%),#080d1c}
.nebula-one{background:radial-gradient(ellipse,#ed927e20,transparent 65%)}
.nebula-two{background:radial-gradient(ellipse,#b86e9c1b,transparent 65%)}
.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1ca6,#080d1c20 58%,transparent 78%),linear-gradient(0deg,#080d1cb0,transparent 30%)}
.hero h1{text-shadow:0 3px 35px #080d1c60}
.orbit-label{color:#e6bcb1;bottom:auto;top:-30px}.orbit-dot{background:#ffd6bc;box-shadow:0 0 14px #ffc4aa}
.motion-button{color:#e1c5c8}.interaction-note{color:#b5a0b0}
.wish-section{background:radial-gradient(ellipse at 50% 50%,#d87c8420,transparent 65%)}
@media(max-width:850px){.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1cc0,#080d1c40 70%,transparent),linear-gradient(0deg,#080d1cd0,transparent 55%)}}
@media(max-width:600px){.webgl-ready .hero-shade{background:linear-gradient(90deg,#080d1cd0,#080d1c70 65%,#080d1c28),linear-gradient(0deg,#080d1ccd,transparent 70%)}}