:root{--cream:#fbf6f0;--paper:#fffdf9;--rose:#b77b83;--rose-deep:#89515e;--rose-pale:#f1dfe0;--gold:#c4a477;--ink:#45383b;--muted:#8e7b7c;--line:#e9d9d0;--serif:'Playfair Display','Noto Serif Thai',serif;--thai:'Noto Serif Thai',serif;--sans:'DM Sans',sans-serif;--shadow:0 24px 70px #79525a16}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--thai);overflow-x:hidden}button,a{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--gold);outline-offset:4px}.grain{position:fixed;inset:0;z-index:50;pointer-events:none;opacity:.12;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E")}
.topbar{height:86px;position:absolute;z-index:10;top:0;left:0;width:100%;padding:0 clamp(22px,6vw,92px);display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #fff8}.brand{display:flex;align-items:center;gap:12px;color:var(--rose-deep)}.brand-symbol{font:34px var(--serif);color:var(--gold)}.brand b{display:block;font:600 11px var(--sans);letter-spacing:.19em}.brand small{display:block;margin-top:5px;font:9px var(--sans);letter-spacing:.16em;color:#a99591}.nav{display:flex;gap:clamp(18px,3vw,42px)}.nav a{font:10px var(--sans);letter-spacing:.12em;text-transform:uppercase;color:#816f70;transition:color .2s}.nav a:hover{color:var(--rose)}.sound-btn{border:1px solid #d8c4b7;background:#fff9f4a8;border-radius:40px;padding:9px 15px;color:var(--rose-deep);display:flex;align-items:center;gap:8px}.sound-btn span{font-size:17px}.sound-btn i{font:10px var(--sans);font-style:normal;letter-spacing:.08em}
.hero{min-height:850px;height:100svh;max-height:1100px;position:relative;display:grid;place-items:center;text-align:center;overflow:hidden;background:radial-gradient(ellipse at 50% 42%,#fffdf9 0,#f9f0e9 48%,#f0e1dc 100%);isolation:isolate}.hero:before,.hero:after{content:"";position:absolute;border:1px solid #c4a47740;border-radius:50%;width:min(76vw,850px);aspect-ratio:1;z-index:-1}.hero:after{width:min(88vw,990px);border-color:#b77b8328}.hero-orbit{position:absolute;border:1px solid #c4a47735;border-radius:50%;width:min(61vw,700px);aspect-ratio:1;z-index:-1}.orbit-two{width:min(53vw,600px);border-style:dashed;opacity:.45}.hero-content{padding:120px 20px 70px;max-width:780px}.overline,.eyebrow{font:600 9px var(--sans);letter-spacing:.25em;color:var(--rose);text-transform:uppercase}.overline{display:flex;align-items:center;justify-content:center;gap:14px}.overline span{width:28px;height:1px;background:var(--gold)}.hero-kicker{font-size:15px;color:#927d7c;margin:34px 0 0}.hero h1{font:500 clamp(64px,10vw,116px)/1.02 var(--serif);letter-spacing:-.045em;color:#76515a;margin:5px 0 12px}.hero h1 em,.section-heading h2 em,.music-layout h2 em,.question-card h2 em,.surprise-inner h2 em{font-weight:500;color:var(--rose);font-style:italic}.hero-heart{font:30px var(--serif);color:var(--gold);vertical-align:top;margin-left:12px}.hero-copy{font-size:14px;line-height:2.1;color:#897778;margin:16px 0 0}.hero-art{height:230px;width:340px;max-width:90vw;margin:2px auto 0;position:relative;display:grid;place-items:center}.halo{position:absolute;width:190px;height:190px;border:1px solid #c4a47755;border-radius:50%;box-shadow:0 0 0 12px #c4a4770b,0 0 0 28px #c4a47708}.flower-stem{position:absolute;width:2px;height:115px;background:linear-gradient(#8b9a79,#a2a985);left:50%;top:87px;transform:rotate(8deg);border-radius:4px}.flower-stem:after{content:"";position:absolute;width:27px;height:14px;background:#9da889;border-radius:100% 0 100% 0;top:50px;left:-23px;transform:rotate(-25deg)}.flower-bloom{position:absolute;top:43px;left:calc(50% - 4px);width:80px;height:80px;transform:translateX(-50%);animation:sway 5s ease-in-out infinite}.flower-bloom i{position:absolute;width:27px;height:39px;left:27px;top:1px;background:linear-gradient(145deg,#f6d9d4,#c6818a);border-radius:70% 70% 45% 45%;transform-origin:50% 39px}.flower-bloom i:nth-child(2){transform:rotate(72deg)}.flower-bloom i:nth-child(3){transform:rotate(144deg)}.flower-bloom i:nth-child(4){transform:rotate(216deg)}.flower-bloom i:nth-child(5){transform:rotate(288deg)}.flower-bloom b{position:absolute;width:17px;height:17px;left:32px;top:31px;border-radius:50%;background:#d8b477;border:3px solid #f9e9d5}.letter-card{position:absolute;right:20px;bottom:5px;width:118px;height:125px;background:#fffaf2;border:1px solid #d7bd9b;box-shadow:0 12px 25px #79525a20;transform:rotate(8deg);display:flex;flex-direction:column;justify-content:center;align-items:center;color:var(--rose-deep)}.letter-card span,.letter-card small{font:8px var(--sans);letter-spacing:.1em;color:#a58e84}.letter-card strong{font:italic 29px var(--serif);margin:2px}.letter-card b{font:18px var(--serif);color:var(--gold);margin-top:3px}.primary-btn{border:0;border-radius:40px;padding:14px 24px;background:linear-gradient(120deg,#a96d79,#c88e91);color:white;box-shadow:0 10px 28px #a96d7930;transition:transform .25s,box-shadow .25s;font-size:12px;letter-spacing:.03em}.primary-btn:hover{transform:translateY(-3px);box-shadow:0 15px 32px #a96d7945}.primary-btn span{margin-right:8px}.primary-btn b{margin-left:14px;font-family:var(--sans);font-weight:400}.hero-date{display:flex;justify-content:center;align-items:center;gap:14px;margin-top:26px;color:#9d8985;font:9px var(--sans);letter-spacing:.13em}.hero-date i{height:12px;width:1px;background:#cbb7a9}.scroll-cue{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:9px;color:#a18b85}.scroll-cue span{font:8px var(--sans);letter-spacing:.2em}.scroll-cue b{font:17px var(--sans);font-weight:400;animation:bob 1.8s infinite}.hero-flower{position:absolute;color:#c58e91;opacity:.38;font-size:55px}.flower-left{left:9%;top:34%;transform:rotate(-20deg)}.flower-right{right:10%;bottom:26%;font-size:70px;transform:rotate(20deg)}
.section-pad{padding:125px max(6vw,24px)}.section-heading{text-align:center;margin:0 auto 65px}.section-heading h2,.music-layout h2,.question-card h2,.surprise-inner h2{font:500 clamp(35px,5vw,58px)/1.3 var(--serif);color:#76515a;margin:15px 0}.section-heading p{font-size:13px;color:var(--muted);line-height:2}.story-section{background:var(--paper)}.story-layout{width:min(1050px,100%);margin:auto;display:grid;grid-template-columns:1fr 1fr;gap:clamp(45px,8vw,110px);align-items:center}.story-visual{position:relative;max-width:440px;margin:auto;width:100%}.story-frame{aspect-ratio:4/5;background:linear-gradient(155deg,#f3e5d9,#ead4d0 60%,#d9b6b1);position:relative;overflow:hidden;display:grid;place-items:center;border:12px solid #fffdf9;box-shadow:var(--shadow)}.story-frame:before,.story-frame:after{content:"";position:absolute;border:1px solid #fff9;width:75%;height:75%;border-radius:50%}.story-frame:after{width:55%;height:55%;border-style:dashed}.story-sun{position:absolute;width:130px;height:130px;border-radius:50%;background:#f8e9c9;top:18%;right:13%;box-shadow:0 0 0 18px #f8e9c933}.story-plant{font-size:150px;color:#a86e79;z-index:1;text-shadow:0 10px 25px #82505a24;transform:translateY(-8px)}.story-caption{position:absolute;bottom:12%;left:0;width:100%;text-align:center;font:italic 19px/1.5 var(--serif);color:#fffaf3;text-shadow:0 2px 12px #78545a55}.frame-note{display:block;text-align:right;margin-top:14px;font:9px var(--sans);letter-spacing:.2em;color:#a88e82}.story-copy{position:relative}.quote-mark{font:80px/.5 var(--serif);color:#d7b9a6}.story-copy h3{font:italic 29px var(--serif);color:var(--rose-deep);margin:15px 0}.story-copy p{font-size:14px;line-height:2.2;color:#827273}.signature{margin-top:25px;font:italic 16px var(--serif);color:#9d7c7c}.signature b{display:block;font:500 17px var(--thai);margin-top:8px;color:var(--rose-deep)}.text-link{padding:0 0 7px;margin-top:24px;border:0;border-bottom:1px solid #c8a78f;background:none;color:var(--rose-deep);font-size:12px}.text-link span{margin-left:15px}
.memories-section{background:#f3e8e1}.memory-gallery{width:min(1060px,100%);margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;align-items:center}.memory-placeholder,.memory-item{position:relative;aspect-ratio:4/5;padding:12px 12px 45px;background:#fffdf9;box-shadow:0 15px 35px #78565a18;transform:rotate(-2deg)}.memory-placeholder:nth-child(2),.memory-item:nth-child(2){transform:translateY(-22px) rotate(2deg)}.memory-placeholder:nth-child(3),.memory-item:nth-child(3){transform:rotate(-1deg)}.memory-placeholder>span{height:100%;display:grid;place-items:center;background:linear-gradient(145deg,#efd9d4,#d9b9b1 60%,#d8c9ae);color:#fff8ed;font:60px var(--serif)}.memory-placeholder:nth-child(2)>span{background:linear-gradient(145deg,#e7d8c8,#c6b4a4);color:#fff9ef}.memory-placeholder:nth-child(3)>span{background:linear-gradient(145deg,#e9d3d9,#c78e99);color:#fff8ed}.memory-placeholder small,.memory-item small{position:absolute;bottom:14px;left:0;width:100%;text-align:center;font:9px var(--sans);letter-spacing:.14em;color:#9c8580}.memory-item{padding:10px 10px 42px}.memory-item img{width:100%;height:100%;object-fit:cover;display:block}.gallery-note{text-align:center;margin-top:38px;font-size:12px;color:#9a8281}
.time-section{background:var(--paper);padding-top:105px;padding-bottom:105px}.time-panel{max-width:900px;margin:auto;text-align:center;padding:65px 20px;border:1px solid #ddc8b5;outline:1px solid #ddc8b555;outline-offset:8px;position:relative;background:radial-gradient(ellipse at 50% 0,#f7ebe3,transparent 65%)}.time-decoration{font:35px var(--serif);color:#c4a477;margin-bottom:16px}.time-panel h2{font:500 clamp(34px,5vw,52px) var(--serif);color:#76515a;margin:15px 0}.time-panel>p{font-size:13px;color:var(--muted)}.counter{display:flex;align-items:center;justify-content:center;gap:clamp(12px,4vw,45px);margin:48px auto 20px}.count strong{display:block;font:500 clamp(42px,7vw,72px)/1 var(--serif);color:var(--rose-deep);font-variant-numeric:tabular-nums}.count span{display:block;font:9px var(--sans);letter-spacing:.22em;color:#a38d84;margin-top:12px}.counter>i{font:25px var(--serif);font-style:normal;color:#c5a783;margin-top:-20px}.time-foot{font:italic 16px var(--serif);color:#9b7a7b}.time-foot span{color:var(--rose);margin-left:5px}
.music-section{background:linear-gradient(120deg,#f5e9e2,#f1e0df)}.music-layout{max-width:1000px;margin:auto;display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}.music-layout h2{margin:18px 0}.music-layout>div:first-child p{font-size:13px;line-height:2;color:#887678}.music-player{background:#fffaf5;border:1px solid #e1cfc1;box-shadow:var(--shadow);padding:28px;display:flex;align-items:center;gap:25px}.vinyl{width:145px;aspect-ratio:1;border-radius:50%;flex:none;background:repeating-radial-gradient(circle at center,#342d31 0 2px,#4b4045 3px 5px,#302a2e 6px 8px);display:grid;place-items:center;box-shadow:0 8px 22px #40313740;animation:spin 12s linear infinite paused}.vinyl.playing{animation-play-state:running}.vinyl-label{width:48px;height:48px;border-radius:50%;background:#c48b8e;display:grid;place-items:center;color:#fff8ef;font:18px var(--serif)}.music-info{min-width:0;flex:1}.track-label{font:8px var(--sans);letter-spacing:.17em;color:#b28b7f}.music-info h3{font:italic 24px var(--serif);color:#76515a;margin:8px 0 3px}.music-info p{font:10px var(--sans);color:#a18b85;margin:0 0 18px}.player-controls{display:flex;align-items:center;gap:12px}.player-controls>button{width:37px;height:37px;border-radius:50%;border:0;background:var(--rose);color:white}.progress-wrap{flex:1;min-width:40px}.progress{height:3px;background:#e8d9d2}.progress span{display:block;width:0;height:100%;background:var(--rose)}.time-label{display:flex;justify-content:space-between;margin-top:6px;font:8px var(--sans);color:#a18b85}.sound-wave{color:#c48b8e}
.question-section{background:var(--paper)}.question-card{max-width:780px;margin:auto;text-align:center;padding:70px 25px;border:1px solid #e4d2c6;background:radial-gradient(ellipse at 50% 0,#f9eee7,transparent 70%)}.question-flower{font-size:42px;color:#c58e91;margin-top:22px}.question-card h2{margin:12px 0}.question-card>p{font-size:13px;line-height:2;color:var(--muted)}.answer-actions{display:flex;justify-content:center;gap:12px;margin-top:28px}.soft-btn{border:1px solid #ddc9bd;border-radius:40px;padding:13px 22px;background:#fffaf6;color:#9b7f7c;font-size:12px}.answer-message{min-height:24px;margin-top:18px!important;color:var(--rose-deep)!important}.surprise-section{padding:105px 24px;background:#e9d8d3;text-align:center}.surprise-inner{max-width:650px;margin:auto}.surprise-inner h2{margin:17px 0}.surprise-inner>p{font-size:13px;color:#8f7777;line-height:2}.outline-btn{margin-top:20px;padding:13px 24px;border:1px solid #b88985;background:transparent;border-radius:40px;color:#865b62;font-size:12px}.outline-btn span{margin-left:12px}.secret-message{max-width:540px;margin:28px auto 0!important;padding:22px;border:1px solid #c9a9a0;background:#fff9f2a8;color:#805861!important}.hidden{display:none!important}
.footer{text-align:center;padding:50px 20px 42px;background:#f8f1ea;color:#9d8983}.footer-mark{font:35px var(--serif);color:var(--gold)}.footer-name{font:600 10px var(--sans);letter-spacing:.25em;color:#8b6269;margin-top:8px}.footer p{font-size:11px}.footer small{font:8px var(--sans);letter-spacing:.2em;color:#b8a49a}
.letter-modal{position:fixed;inset:0;z-index:40;display:none;align-items:center;justify-content:center;padding:22px}.letter-modal.show{display:flex}.modal-backdrop{position:absolute;inset:0;background:#35282cba;backdrop-filter:blur(7px);animation:fade .3s}.paper{position:relative;width:min(660px,100%);max-height:min(88vh,850px);overflow:auto;padding:clamp(28px,6vw,65px);background:linear-gradient(145deg,#fffdf8,#f9eee5);border:1px solid #d5bd9f;box-shadow:0 30px 90px #21171a55;animation:paperIn .45s ease}.paper:before{content:"";position:absolute;inset:10px;border:1px solid #ddc8ad;pointer-events:none}.modal-x{position:absolute;right:23px;top:16px;border:0;background:none;color:#9c7a79;font:28px var(--serif)}.paper-flower{text-align:center;font-size:22px;color:#bd8e83;margin-bottom:24px}.paper>.eyebrow{display:block;text-align:center}.paper h2{text-align:center;font:italic 34px var(--serif);color:#885b64;margin:15px 0 28px}.letter-body{font-size:14px;line-height:2.25;color:#6f5d5d;white-space:pre-wrap;overflow-wrap:anywhere}.close-letter{display:block;margin:30px auto 0;border:1px solid #d8c0b0;background:#fffaf3;color:#8e6268;border-radius:40px;padding:11px 24px;font-size:11px}.toast{position:fixed;z-index:60;bottom:25px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;padding:12px 22px;border-radius:40px;background:#6e4d55;color:#fffaf5;font-size:12px;transition:.3s;box-shadow:var(--shadow)}.toast.show{opacity:1;transform:translate(-50%,0)}.floating-heart{position:fixed;bottom:-30px;z-index:30;pointer-events:none;color:#c77f91;animation:floatUp 7s linear forwards}
@keyframes sway{0%,100%{transform:translateX(-50%) rotate(-4deg)}50%{transform:translateX(-50%) rotate(5deg)}}@keyframes bob{50%{transform:translateY(5px)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade{from{opacity:0}to{opacity:1}}@keyframes paperIn{from{opacity:0;transform:translateY(20px) scale(.98)}to{opacity:1;transform:none}}@keyframes floatUp{to{transform:translateY(-110vh) rotate(25deg);opacity:0}}
@media(max-width:850px){.topbar{height:75px;padding:0 24px}.nav{gap:16px}.nav a{font-size:9px}.brand b{font-size:10px}.music-layout{gap:35px}.music-player{padding:20px;gap:18px}.vinyl{width:110px}}
@media(max-width:650px){html{scroll-padding-top:20px}.topbar{height:68px;padding:0 18px}.brand-symbol{font-size:28px}.brand b{font-size:9px}.brand small{font-size:7px}.nav{display:none}.sound-btn{padding:7px 11px}.sound-btn i{display:none}.hero{min-height:760px;height:100svh}.hero-content{padding-top:105px}.hero h1{font-size:clamp(60px,16vw,88px)}.hero-kicker{font-size:13px;margin-top:28px}.hero-copy{font-size:12px}.hero-art{height:205px}.hero-flower{font-size:35px}.flower-left{left:4%;top:25%}.flower-right{right:4%;bottom:25%}.hero-date{font-size:8px;gap:9px}.section-pad{padding:82px 22px}.section-heading{margin-bottom:42px}.section-heading h2,.music-layout h2,.question-card h2,.surprise-inner h2{font-size:36px}.story-layout{grid-template-columns:1fr;gap:45px}.story-visual{max-width:330px}.story-copy{max-width:500px;margin:auto}.story-copy p{font-size:13px}.memory-gallery{gap:12px}.memory-placeholder,.memory-item{padding:7px 7px 35px}.memory-placeholder small,.memory-item small{font-size:7px;letter-spacing:.07em;bottom:11px}.memory-placeholder>span{font-size:40px}.counter{gap:12px;margin:38px auto 18px}.count strong{font-size:42px}.count span{font-size:7px;letter-spacing:.13em}.counter>i{font-size:18px}.time-panel{padding:48px 10px}.music-layout{grid-template-columns:1fr;gap:28px}.music-layout>div:first-child{text-align:center}.music-layout>div:first-child p br{display:none}.music-player{max-width:440px;width:100%;margin:auto}.vinyl{width:92px}.music-info h3{font-size:20px}.question-card{padding:55px 18px}.answer-actions{gap:8px}.primary-btn,.soft-btn{padding:12px 17px;font-size:11px}.surprise-section{padding:80px 20px}.paper{padding:42px 25px}.paper h2{font-size:29px}.letter-body{font-size:13px}.footer{padding:40px 18px}}
@media(max-width:370px){.hero-date{font-size:7px;gap:6px}.memory-gallery{gap:8px}.counter{gap:7px}.count strong{font-size:35px}.music-player{gap:12px;padding:14px}.vinyl{width:75px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* AMOR PERPETUUM · layered interactive experience */
:root{--ap-glow:#f5cbd0;--ap-gold:#d6b47c}
body{--scroll-progress:0}
.topbar{position:fixed;transition:background .35s,box-shadow .35s,backdrop-filter .35s}
.topbar.scrolled{background:#fbf6f0e8;backdrop-filter:blur(16px);box-shadow:0 8px 30px #79525a12;border-color:#e8d8ce}
.reading-progress{position:fixed;z-index:70;top:0;left:0;height:2px;width:100%;pointer-events:none;background:#c4a47722}
.reading-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,#c88e91,#d6b47c);box-shadow:0 0 12px #c88e91}
.chapter-rail{position:fixed;z-index:25;right:22px;top:50%;transform:translateY(-50%);display:grid;gap:12px}
.chapter-rail a{width:8px;height:8px;border:1px solid #b88b8b;border-radius:50%;background:#fff8;display:block;position:relative;transition:.3s}
.chapter-rail a.active{background:#b77b83;transform:scale(1.5);box-shadow:0 0 0 5px #b77b8320}
.chapter-rail a span{position:absolute;right:18px;top:50%;transform:translateY(-50%);white-space:nowrap;font:9px var(--sans);letter-spacing:.1em;color:#8f6c72;opacity:0;transition:.2s;pointer-events:none}
.chapter-rail a:hover span{opacity:1}
.ambient-layer{position:fixed;inset:0;z-index:4;pointer-events:none;overflow:hidden}
.petal{position:absolute;top:-35px;width:13px;height:19px;border-radius:80% 0 80% 0;background:linear-gradient(145deg,#f6d9d4,#c6818a);opacity:.58;filter:drop-shadow(0 2px 4px #79525a20);animation:petalFall linear forwards}
.sparkle{position:fixed;z-index:80;pointer-events:none;color:#c4a477;font:12px var(--serif);animation:sparkleOut .8s ease-out forwards;text-shadow:0 0 9px #fff}
.hero-content{position:relative;z-index:2}
.hero-art{perspective:900px}
.letter-card{cursor:pointer;transform-style:preserve-3d;transition:transform .65s cubic-bezier(.2,.8,.2,1),box-shadow .4s}
.letter-card:hover{transform:rotateY(-15deg) rotateX(8deg) rotate(5deg) translateY(-8px);box-shadow:0 24px 35px #79525a30}
.letter-card:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#fff9,transparent 42%,#c4a47718);pointer-events:none}
.hero-heart{display:inline-block;animation:heartBeat 2s ease-in-out infinite;transform-origin:center}
.music-player.is-playing{box-shadow:0 18px 55px #b77b8330,0 0 0 5px #b77b830d}
.music-player.is-playing .vinyl{filter:drop-shadow(0 0 14px #c88e9166)}
.music-player.is-playing .vinyl-label{animation:heartBeat 1.1s infinite}
.music-player.is-playing .sound-wave{animation:wavePulse .7s ease-in-out infinite alternate}
.story-frame,.memory-item,.memory-placeholder,.question-card,.time-panel,.paper{transform-style:preserve-3d;transition:transform .45s ease,box-shadow .45s ease}
.memory-item{cursor:zoom-in;transition:transform .45s,box-shadow .45s}
.memory-item:hover{z-index:3;transform:translateY(-10px) rotate(0) scale(1.035);box-shadow:0 25px 55px #78565a30}
.memory-item img{transition:transform .7s}
.memory-item:hover img{transform:scale(1.035)}
.section-heading,.story-copy,.story-visual,.memory-gallery,.time-panel,.music-layout,.question-card,.surprise-inner{opacity:0;transform:translateY(24px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.in-view{opacity:1!important;transform:translateY(0)!important}
.chapter-flash{position:fixed;inset:0;z-index:65;pointer-events:none;background:radial-gradient(circle,#fff9 0,transparent 65%);animation:chapterFlash .7s ease-out forwards}
.letter-modal.show .paper{transform-origin:50% 15%;animation:paperIn .55s cubic-bezier(.16,1,.3,1)}
.question-card.answered-yes{box-shadow:0 0 0 8px #c88e9110,0 25px 70px #b77b8325}
.secret-message:not(.hidden){animation:secretBloom .8s cubic-bezier(.2,.8,.2,1) both}
.floating-heart{filter:drop-shadow(0 3px 7px #b77b8340)}
@keyframes petalFall{0%{transform:translate3d(0,-5vh,0) rotate(0)}50%{transform:translate3d(55px,50vh,0) rotate(250deg)}100%{transform:translate3d(-25px,110vh,0) rotate(560deg);opacity:0}}
@keyframes sparkleOut{0%{opacity:0;transform:scale(.3) rotate(0)}25%{opacity:1}100%{opacity:0;transform:scale(1.6) rotate(80deg) translateY(-12px)}}
@keyframes heartBeat{0%,100%{transform:scale(1)}12%{transform:scale(1.16)}24%{transform:scale(1)}36%{transform:scale(1.1)}48%{transform:scale(1)}}
@keyframes wavePulse{from{opacity:.45;transform:scaleY(.7)}to{opacity:1;transform:scaleY(1.3)}}
@keyframes chapterFlash{from{opacity:.8}to{opacity:0}}
@keyframes secretBloom{from{opacity:0;transform:translateY(15px) scale(.97);filter:blur(5px)}to{opacity:1;transform:none;filter:none}}
@media(max-width:650px){.chapter-rail{right:9px;gap:10px}.chapter-rail a{width:6px;height:6px}.ambient-layer{opacity:.65}.topbar{position:absolute}.topbar.scrolled{position:fixed}}
@media(pointer:coarse){.sparkle{display:none}}
@media(prefers-reduced-motion:reduce){.petal,.sparkle{display:none!important}.section-heading,.story-copy,.story-visual,.memory-gallery,.time-panel,.music-layout,.question-card,.surprise-inner{opacity:1;transform:none}}

/* CHOICE STORY + UNLOCKED CHAPTER */
.answer-actions{align-items:center;min-height:70px;position:relative;gap:18px}
#yesBtn,#noBtn{transform-origin:center;transition:transform .42s cubic-bezier(.2,.8,.2,1),opacity .35s,box-shadow .35s}
#yesBtn{position:relative;z-index:2}
#noBtn{position:relative;z-index:1}
#yesBtn:disabled,#noBtn:disabled{cursor:default;filter:saturate(.9)}
.choice-spark{position:absolute;left:50%;top:47%;z-index:4;color:#c4a477;font-size:32px;pointer-events:none;animation:sparkleOut .9s ease-out forwards}
.next-chapter-section{position:relative;isolation:isolate;overflow:hidden;min-height:90vh;padding:110px 24px 125px;text-align:center;background:radial-gradient(ellipse at 50% 18%,#fffaf3 0,#f5e4df 42%,#e8d2d0 100%);border-top:1px solid #e3c9c2;animation:nextChapterIn 1s cubic-bezier(.2,.8,.2,1) both}
.next-chapter-section:before,.next-chapter-section:after{content:"";position:absolute;z-index:-1;width:min(70vw,620px);aspect-ratio:1;border:1px solid #c9a68a55;border-radius:50%;left:50%;top:50%;transform:translate(-50%,-50%);box-shadow:0 0 0 24px #c9a68a0a,0 0 0 55px #c9a68a08}
.next-chapter-section:after{width:min(48vw,430px);border-style:dashed;animation:orbitSlow 65s linear infinite}
.next-chapter-glow{position:absolute;z-index:-1;left:50%;top:25%;width:220px;height:220px;transform:translate(-50%,-50%);background:#fff9;border-radius:50%;filter:blur(35px);animation:glowBreathe 4s ease-in-out infinite}
.next-chapter-content{max-width:760px;margin:auto;position:relative}
.next-chapter-emblem{font:72px var(--serif);line-height:1.2;color:#bd858a;text-shadow:0 8px 28px #b77b8340;animation:heartBeat 2.1s infinite;margin:25px auto 18px}
.next-overline{font:9px var(--sans);letter-spacing:.24em;color:#ae8a7d}
.next-chapter-content h2{font:500 clamp(40px,6vw,66px)/1.35 var(--serif);color:#76515a;margin:20px 0}
.next-chapter-content h2 em{color:#b77b83}
.next-lead{font:14px/2.2 var(--thai);color:#907a77}
.promise-orbit{display:flex;align-items:center;justify-content:center;gap:18px;margin:35px auto;color:#9c7778;font:italic 15px var(--serif)}
.promise-orbit i{font-style:normal;color:#c28b8e;font-size:18px}
.next-reveal-btn,.next-memory-btn{border:1px solid #bd8b8b;border-radius:40px;padding:14px 26px;background:#fffaf3c9;color:#885d65;font:12px var(--thai);box-shadow:0 9px 25px #8e626818;transition:transform .25s,box-shadow .25s}
.next-reveal-btn:hover,.next-memory-btn:hover{transform:translateY(-3px);box-shadow:0 15px 32px #8e62682a}
.next-reveal-btn b{margin-left:10px;color:#bd9b65}
.promise-hidden{max-width:600px;margin:30px auto 0;animation:secretBloom .7s ease both}
.promise-card{padding:38px clamp(22px,5vw,48px);background:#fffaf3d9;border:1px solid #d9c2ae;box-shadow:0 20px 60px #79525a18;position:relative}
.promise-card:before{content:"";position:absolute;inset:9px;border:1px solid #e6d5c4;pointer-events:none}
.promise-card-mark{font-size:30px;color:#b98586}
.promise-card h3{font:italic 27px var(--serif);color:#805962;margin:14px 0 22px}
.promise-card p{font:13px/2.2 var(--thai);color:#826f6d}
.promise-card small{display:block;margin-top:25px;font:9px var(--sans);letter-spacing:.15em;color:#b18d7c}
.next-memory-btn{margin-top:24px;background:#fdf7f0}
.tiny-memory{margin:22px auto 0;padding:25px;background:#f8eee7;border:1px dashed #cba9a0;animation:secretBloom .6s ease both}
.tiny-memory>span{font:9px var(--sans);letter-spacing:.2em;color:#b18d7c}
.tiny-memory p{font:14px/2.2 var(--thai);color:#856c6d}
.tiny-stars{font-size:20px;color:#bd9b65}
@keyframes nextChapterIn{0%{opacity:0;transform:translateY(45px);filter:blur(8px)}100%{opacity:1;transform:none;filter:none}}
@keyframes orbitSlow{to{transform:translate(-50%,-50%) rotate(360deg)}}
@keyframes glowBreathe{0%,100%{opacity:.55;scale:.9}50%{opacity:1;scale:1.18}}
@media(max-width:650px){.next-chapter-section{min-height:80vh;padding:82px 20px}.next-chapter-content h2{font-size:42px}.next-chapter-emblem{font-size:62px}.promise-orbit{gap:10px;font-size:13px}.promise-card{padding:30px 22px}.next-chapter-section:before{width:90vw}.next-chapter-section:after{width:70vw}.answer-actions{gap:12px}}
@media(prefers-reduced-motion:reduce){.next-chapter-section:after,.next-chapter-emblem,.next-chapter-glow{animation:none}}


/* BUTTON FEEDBACK — tactile, romantic, and accessible */
button{ -webkit-tap-highlight-color:transparent; }
button:not(:disabled){position:relative;isolation:isolate;overflow:hidden;cursor:pointer;transition:transform .22s cubic-bezier(.2,.8,.2,1),box-shadow .28s,filter .25s,border-color .25s}
button:not(:disabled):active{transform:translateY(1px) scale(.965)!important;filter:brightness(.98)}
button.button-hover:not(:disabled){filter:brightness(1.035);box-shadow:0 12px 28px #a96d7926}
.button-ripple{position:absolute;z-index:-1;border-radius:50%;pointer-events:none;background:radial-gradient(circle,#fff9 0%,#f4dadd88 38%,transparent 72%);transform:scale(0);animation:buttonRipple .72s ease-out forwards}
.button-spark{position:fixed;z-index:100;pointer-events:none;color:#bd9865;text-shadow:0 0 10px #fff,0 0 18px #d9b6a3;animation:buttonSpark .85s cubic-bezier(.16,1,.3,1) forwards}
.button-heart-pop{position:fixed;z-index:100;pointer-events:none;color:#bd858a;font-size:18px;text-shadow:0 3px 10px #b77b8340;animation:buttonHeartPop 1.05s ease-out forwards}
button.button-success{animation:buttonSuccess .65s ease both}
.primary-btn:not(:disabled):hover,.outline-btn:not(:disabled):hover,.next-reveal-btn:not(:disabled):hover,.next-memory-btn:not(:disabled):hover{box-shadow:0 12px 30px #a96d7933,0 0 0 4px #b77b8310}
.soft-btn:not(:disabled):hover,.text-link:not(:disabled):hover{color:#9b626e}
#playBtn:not(:disabled):hover{transform:scale(1.09) rotate(-5deg)}
#soundBtn:not(:disabled):hover{transform:translateY(-2px)}
@keyframes buttonRipple{to{transform:scale(1);opacity:0}}
@keyframes buttonSpark{0%{opacity:0;transform:translate(-50%,-50%) scale(.2) rotate(-25deg)}25%{opacity:1}100%{opacity:0;transform:translate(calc(-50% + var(--dx)),calc(-50% + var(--dy))) scale(1.2) rotate(55deg)}}
@keyframes buttonHeartPop{0%{opacity:0;transform:translate(-50%,-20%) scale(.35)}18%{opacity:1}100%{opacity:0;transform:translate(calc(-50% + var(--dx)),calc(-50% + var(--dy))) scale(1.25) rotate(18deg)}}
@keyframes buttonSuccess{0%,100%{filter:none}35%{filter:brightness(1.12);box-shadow:0 0 0 7px #c88e9120,0 12px 35px #b77b8340}}
@media(prefers-reduced-motion:reduce){.button-ripple,.button-spark,.button-heart-pop,button.button-success{animation:none!important}.button-ripple{display:none}}

/* SECRET DISCOVERY — the hidden confession */
.secret-find-btn{display:inline-grid;place-items:center;width:17px;height:17px;margin:0 0 0 3px;padding:0;border:0;border-radius:50%;background:transparent;color:#a77d79;font:13px/1 var(--serif);opacity:.22;vertical-align:middle;box-shadow:none;transition:opacity .35s,transform .35s,text-shadow .35s;animation:none}
.secret-find-btn:hover,.secret-find-btn:focus-visible{opacity:1;transform:scale(1.45);text-shadow:0 0 12px #c88e91;outline:0}
.secret-message{line-height:2.3}
.secret-proposal{max-width:680px;margin:55px auto 0;padding:clamp(28px,6vw,58px) 24px 42px;position:relative;overflow:hidden;border:1px solid #d9c2ae;background:radial-gradient(ellipse at 50% 0,#fffefa 0,#fbf0e9 58%,#f2e1dc 100%);box-shadow:0 25px 75px #79525a20;animation:secretProposalIn 1s cubic-bezier(.16,1,.3,1) both}
.secret-proposal:before,.secret-proposal:after{content:"";position:absolute;pointer-events:none;border:1px solid #c7a58a55;border-radius:50%;width:390px;height:390px;left:50%;top:48%;transform:translate(-50%,-50%);box-shadow:0 0 0 20px #c4a47708,0 0 0 44px #c4a47706}
.secret-proposal:after{width:300px;height:300px;border-style:dashed;animation:orbitSlow 70s linear infinite}
.secret-proposal>*{position:relative;z-index:1}
.secret-proposal-heart{font:76px/1 var(--serif);color:#b77b83;margin:25px auto 18px;text-shadow:0 8px 25px #b77b8345;animation:heartBeat 2s infinite}
.secret-proposal-kicker{font:9px var(--sans)!important;letter-spacing:.22em;color:#b18d7c!important}
.secret-proposal h3{font:italic 28px var(--serif);font-weight:500;color:#87616a;margin:22px 0 0}
.secret-proposal h2{font:500 clamp(42px,8vw,68px)/1.25 var(--thai);color:#a86f79;margin:5px 0 20px}
.secret-proposal-copy{font:14px/2.2 var(--thai);color:#8d7775}
.secret-proposal-actions{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin:30px auto 12px}
.secret-yes-btn,.secret-maybe-btn{padding:14px 28px;border-radius:40px;font:13px var(--thai);transition:all .3s}
.secret-yes-btn{border:1px solid #a96e78;background:linear-gradient(135deg,#bd858a,#9d626e);color:#fffaf5;box-shadow:0 12px 28px #a96d7938}
.secret-maybe-btn{border:1px solid #d4bdb1;background:#fffaf4;color:#927779}
.secret-yes-emphasis{animation:heartBeat 1.1s infinite;box-shadow:0 0 0 6px #b77b8314,0 12px 30px #a96d7938}
.secret-proposal-answer{min-height:28px;font:12px/2 var(--thai);color:#9b7779}
.secret-final-note{margin:24px auto 0;padding:24px 14px;border-top:1px solid #d9c2ae;font:19px/1.8 var(--thai);color:#95636d;animation:secretBloom .8s ease both}
.secret-final-note small{display:block;margin-top:12px;font:9px var(--sans);letter-spacing:.18em;color:#b18d7c}
.secret-accepted{box-shadow:0 0 0 8px #c88e9110,0 25px 80px #b77b8330}
@keyframes secretHint{0%,100%{box-shadow:0 0 0 5px #c4a4770a}50%{box-shadow:0 0 0 9px #c4a47716}}
@keyframes secretProposalIn{from{opacity:0;transform:translateY(35px) scale(.97);filter:blur(7px)}to{opacity:1;transform:none;filter:none}}
@media(max-width:600px){.secret-proposal{margin:38px 0 0;padding:32px 18px}.secret-proposal:before{width:300px;height:300px}.secret-proposal:after{width:230px;height:230px}.secret-proposal-actions{gap:10px}.secret-yes-btn,.secret-maybe-btn{padding:13px 20px}.secret-find-btn{width:20px;height:20px;opacity:.3}}
@media(prefers-reduced-motion:reduce){.secret-find-btn,.secret-proposal-heart,.secret-proposal:after{animation:none}}