.invitation-stage{--font-display:var(--font-serif-en,Georgia, serif);--font-body:var(--font-serif-en,Georgia, serif);--ease-smooth:cubic-bezier(.22, 1, .36, 1);--ease-spring:cubic-bezier(.34, 1.56, .64, 1);z-index:99999;background:radial-gradient(60vw 45vh at 18% 12%,#d8c9a261 0%,#0000 70%),radial-gradient(55vw 55vh at 85% 82%,#cdbc9152 0%,#0000 70%),radial-gradient(40vw 30vh at 78% 16%,#e8e0c78c 0%,#0000 70%),radial-gradient(45vw 40vh at 10% 88%,#e2d8bc73 0%,#0000 70%),linear-gradient(165deg,#f6f1e4 0%,#f1ead9 45%,#ebe2cd 100%);justify-content:center;align-items:center;transition:opacity 1s,visibility 0s linear 1s;display:flex;position:fixed;inset:0;overflow:hidden}.invitation-stage:before{content:"";pointer-events:none;mix-blend-mode:multiply;background-image:radial-gradient(#a08c5f0d 1px,#0000 1px);background-size:7px 7px;position:absolute;inset:0}.invitation-stage:after{content:"";pointer-events:none;background-image:radial-gradient(2.2px at 12% 24%,#c9943a8c 98%,#0000),radial-gradient(1.6px at 28% 68%,#c9943a73 98%,#0000),radial-gradient(2.6px at 88% 30%,#c9943a80 98%,#0000),radial-gradient(1.8px at 72% 78%,#c9943a80 98%,#0000),radial-gradient(2px at 46% 14%,#c9943a66 98%,#0000),radial-gradient(1.5px at 60% 90%,#c9943a73 98%,#0000),radial-gradient(2.4px at 8% 52%,#c9943a66 98%,#0000),radial-gradient(1.7px at 94% 58%,#c9943a73 98%,#0000);position:absolute;inset:0}.invitation-stage.is-open{opacity:0;visibility:hidden;pointer-events:none}html.invitation-locked,body.invitation-locked{overscroll-behavior:none;height:100%;overflow:hidden!important}body.invitation-locked{touch-action:none;background:#f1ead9!important}.inv-botanical{pointer-events:none;z-index:1;opacity:.9;transform-origin:50%;animation:7s ease-in-out infinite alternate invSway;position:absolute}.inv-bot-tl{width:clamp(170px,30vw,340px);height:clamp(170px,30vw,340px);top:-36px;left:-36px}.inv-bot-br{width:clamp(170px,30vw,340px);height:clamp(170px,30vw,340px);animation-delay:1.2s;bottom:-36px;right:-36px;transform:rotate(180deg)}.inv-bot-tr{opacity:.65;width:clamp(130px,22vw,260px);height:clamp(130px,22vw,260px);animation-delay:.6s;top:-26px;right:-46px;transform:scaleX(-1)rotate(8deg)}.inv-bot-bl{opacity:.65;width:clamp(130px,22vw,260px);height:clamp(130px,22vw,260px);animation-delay:1.8s;bottom:-26px;left:-46px;transform:scaleY(-1)rotate(6deg)}@keyframes invSway{0%{translate:0;rotate:0deg}to{translate:0 7px;rotate:1.6deg}}.inv-content{z-index:3;text-align:center;width:100%;max-width:640px;padding:max(3vh, env(safe-area-inset-top,0px)) 20px max(3vh, env(safe-area-inset-bottom,0px));flex-direction:column;align-items:center;transition:opacity .7s,transform .7s;display:flex;position:relative}.invitation-stage.is-revealed .inv-content{opacity:0;pointer-events:none;transform:translateY(-5vh)scale(.96)}.inv-eyebrow{font-family:var(--font-bengali,"Kalpurush", sans-serif);letter-spacing:.35em;color:#8a6a1f;margin-bottom:1.6vh;font-size:clamp(.95rem,3.4vw,1.2rem);animation:.9s .15s both invFadeDown}.inv-heading{font-family:var(--font-serif-en), Georgia, serif;letter-spacing:.06em;color:#55492f;font-size:clamp(2.1rem,7.5vw,3.4rem);font-weight:600;line-height:1.12;animation:1s .3s both invFadeDown}.inv-heart-divider{align-items:center;gap:12px;margin:2vh 0 1.4vh;animation:1s .45s both invFadeDown;display:flex}.inv-h-dash{background:linear-gradient(90deg,#0000,#b49a5e);width:clamp(38px,9vw,64px);height:1px}.inv-h-dash:last-child{background:linear-gradient(90deg,#b49a5e,#0000)}.inv-h-heart{color:#b49a5e;font-size:clamp(.7rem,2.4vw,.95rem);animation:1.8s ease-in-out infinite invHeartBeat}@keyframes invHeartBeat{0%,to{transform:scale(1)}12%{transform:scale(1.25)}24%{transform:scale(1)}36%{transform:scale(1.18)}48%{transform:scale(1)}}.inv-hint{font-family:var(--font-serif-en), Georgia, serif;color:#8c7f60;margin-bottom:3.2vh;font-size:clamp(.92rem,3.2vw,1.1rem);font-style:italic;animation:1s .6s both invFadeUp}.envelope-scene{perspective:1400px;cursor:pointer;-webkit-tap-highlight-color:transparent;width:min(78vw,440px);animation:envRise 1.1s var(--ease-smooth,ease) .5s both;transition:opacity .7s,transform .7s}.invitation-stage.is-revealed .envelope-scene,.invitation-stage.is-revealed .inv-open-btn,.invitation-stage.is-revealed .inv-hint{opacity:0;pointer-events:none;transform:translateY(4vh)scale(.94)}@keyframes envRise{0%{opacity:0;transform:translateY(5vh)scale(.92)}to{opacity:1;transform:translateY(0)scale(1)}}.envelope{aspect-ratio:10/7;filter:drop-shadow(0 24px 48px #54421e4d)drop-shadow(0 6px 14px #54421e2e);width:100%;position:relative}.env-back{z-index:1;background:linear-gradient(175deg,#fbf7ec 0%,#f6efdd 100%);border-radius:12px;position:absolute;inset:0;box-shadow:inset 0 0 0 1px #e4d9bc}.env-card{z-index:2;transition:transform 1.15s var(--ease-smooth,ease);background:linear-gradient(#fffdf6 0%,#fdf9ee 100%);border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:8%;display:flex;position:absolute;inset:7% 5.5% 12%;transform:translateY(9%);box-shadow:inset 0 0 0 1px #eee3c8,inset 0 0 0 5px #fffdf6,inset 0 0 0 6px #e9dcba,0 8px 22px #54421e2e}.env-card-orn{color:#b49a5e;font-size:clamp(1rem,4vw,1.5rem);line-height:1}.env-card-mono{font-family:var(--font-display,"Cinzel", serif);letter-spacing:.3em;color:#6b5a33;font-size:clamp(.95rem,4vw,1.5rem);font-weight:700}.env-card-line{background:linear-gradient(90deg,#0000,#c9b685,#0000);width:34%;height:1px}.env-pocket{z-index:3;clip-path:polygon(0 0,50% 46%,100% 0,100% 100%,0 100%);background:linear-gradient(190deg,#f9f3e4 0%,#f2e9d3 55%,#eddfc4 100%);border-radius:12px;position:absolute;inset:0}.env-pocket:before{content:"";clip-path:polygon(0 0,50% 46%,100% 0,100% 100%,0 100%);pointer-events:none;background:linear-gradient(90deg,#a08a5a29 0%,#0000 22%),linear-gradient(-90deg,#a08a5a29 0%,#0000 22%),linear-gradient(#0000 70%,#a08a5a24 100%);position:absolute;inset:0}.env-flap{z-index:4;clip-path:polygon(0 0,100% 0,50% 100%);transform-origin:top;backface-visibility:visible;background:linear-gradient(#f4ecd7 0%,#efe4c9 100%);border-radius:12px 12px 0 0;height:54%;transition:transform 1s cubic-bezier(.6,.05,.3,1) .42s,z-index 0s linear 1.18s;position:absolute;top:0;left:0;right:0;transform:rotateX(0)}.env-flap:before{content:"";clip-path:polygon(0 0,100% 0,50% 100%);pointer-events:none;background:linear-gradient(#ffffff8c 0%,#0000 40%);position:absolute;inset:0}.env-seal{z-index:6;aspect-ratio:1;width:clamp(58px,15vw,84px);animation:sealPress .7s var(--ease-spring,ease) 1.15s both;transition:transform .5s var(--ease-smooth,ease), opacity .45s ease;background:radial-gradient(circle at 34% 30%,#d4536a 0%,#a8162a 45%,#7c0e1e 78%,#5f0a16 100%);border-radius:50%;justify-content:center;align-items:center;gap:2px;display:flex;position:absolute;top:52%;left:50%;transform:translate(-50%,-58%);box-shadow:inset 0 0 0 3px #ffe2a859,inset 0 -6px 12px #28000880,inset 0 5px 10px #ffffff2e,0 8px 18px #5a0a1873}.env-seal span{font-family:var(--font-display,"Cinzel", serif);color:#f6dfa4;text-shadow:0 1px 3px #3c000aa6;font-size:clamp(.85rem,2.6vw,1.25rem);font-weight:700;line-height:1}.env-seal i{color:#eec97c;font-size:.62em;font-style:normal;transform:translateY(-1px)}.env-seal:before{content:"";border:1.5px dashed #f6dfa480;border-radius:50%;position:absolute;inset:5px}@keyframes sealPress{0%{opacity:0;transform:translate(-50%,-58%)scale(1.6)}60%{opacity:1;transform:translate(-50%,-58%)scale(.94)}to{opacity:1;transform:translate(-50%,-58%)scale(1)}}.invitation-stage.card-out .env-card{z-index:7;transition:transform 1.15s cubic-bezier(.22,1,.36,1),z-index 0s linear .95s;transform:translateY(-86%)}.envelope-scene:after{content:"";background:radial-gradient(#54421e47 0%,#0000 70%);border-radius:50%;width:26%;height:3px;animation:2.4s ease-in-out infinite envCueFloat;position:absolute;bottom:-14px;left:50%;transform:translate(-50%)}@keyframes envCueFloat{0%,to{opacity:.7;transform:translate(-50%)translateY(0)scale(1)}50%{opacity:.35;transform:translate(-50%)translateY(-6px)scale(.86)}}.invitation-stage.is-opening .envelope-scene:after{opacity:0;animation:none}.inv-reveal{z-index:5;opacity:0;pointer-events:none;transition:opacity .85s ease, transform .95s var(--ease-spring,ease);justify-content:center;align-items:center;padding:24px;display:flex;position:absolute;inset:0;transform:scale(.82)}.invitation-stage.is-revealed .inv-reveal{opacity:1;pointer-events:auto;transform:scale(1)}.inv-reveal-card{text-align:center;background:linear-gradient(#fffdf6 0%,#fdf8ec 100%);border-radius:10px;flex-direction:column;align-items:center;width:min(88vw,480px);max-height:84vh;padding:clamp(30px,6vw,52px) clamp(22px,6vw,46px);display:flex;position:relative;overflow:auto;box-shadow:inset 0 0 0 1px #e7dabb,inset 0 0 0 7px #fffdf6,inset 0 0 0 8px #ddcc9f,0 30px 70px #54421e59}.inv-reveal-card:before,.inv-reveal-card:after{content:"❧";color:#c3ab74;opacity:.85;font-size:clamp(.9rem,3vw,1.2rem);position:absolute}.inv-reveal-card:before{top:12px;left:16px}.inv-reveal-card:after{bottom:12px;right:16px;transform:rotate(180deg)}.inv-rc-orn{color:#b49a5e;margin-bottom:10px;font-size:clamp(1.2rem,4vw,1.6rem);animation:.8s .25s both invRcItem}.inv-rc-bn{font-family:var(--font-bengali,"Kalpurush", sans-serif);letter-spacing:.3em;color:#8a6a1f;margin-bottom:14px;font-size:clamp(.85rem,3vw,1.05rem);animation:.8s .4s both invRcItem}.inv-rc-kick{font-family:var(--font-serif-en), Georgia, serif;color:#948663;margin-bottom:8px;font-size:clamp(.95rem,3.2vw,1.15rem);font-style:italic;animation:.8s .55s both invRcItem}.inv-rc-names{font-family:var(--font-display,"Cinzel", serif);color:#4a3d22;animation:invRcItem .9s var(--ease-spring,ease) .7s both;margin-bottom:14px;font-size:clamp(1.55rem,6.4vw,2.5rem);font-weight:700;line-height:1.22}.inv-rc-names .rc-weds{letter-spacing:.5em;text-transform:uppercase;color:#a8162a;margin:6px 0;font-size:.42em;font-weight:400;display:block}.inv-rc-rule{align-items:center;gap:10px;width:72%;margin-bottom:14px;animation:.8s .85s both invRcItem;display:flex}.inv-rc-rule span{background:linear-gradient(90deg,#0000,#c9b685);flex:1;height:1px}.inv-rc-rule span:last-child{background:linear-gradient(90deg,#c9b685,#0000)}.inv-rc-rule i{color:#a8162a;font-size:.8rem;font-style:normal}.inv-rc-date{font-family:var(--font-display,"Cinzel", serif);letter-spacing:.28em;color:#a8162a;margin-bottom:6px;font-size:clamp(1rem,3.6vw,1.3rem);font-weight:700;animation:.8s 1s both invRcItem}.inv-rc-day{font-family:var(--font-serif-en), Georgia, serif;letter-spacing:.12em;color:#6b5f43;margin-bottom:12px;font-size:clamp(.95rem,3.2vw,1.15rem);animation:.8s 1.1s both invRcItem}.inv-rc-note{font-family:var(--font-serif-en), Georgia, serif;color:#948663;font-size:clamp(.9rem,3vw,1.05rem);font-style:italic;animation:.8s 1.25s both invRcItem}@keyframes invRcItem{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}.inv-open-btn{color:#7d662f;font-family:var(--font-display,"Cinzel", serif);letter-spacing:.32em;text-transform:uppercase;cursor:pointer;background:0 0;border:1.5px solid #b49a5e;border-radius:4px;margin-top:4vh;padding:15px 42px;font-size:clamp(.8rem,3vw,.98rem);font-weight:600;transition:background .4s,color .4s,box-shadow .4s,transform .3s;animation:1s .85s both invFadeUp;position:relative;overflow:hidden}.inv-open-btn:before{content:"";pointer-events:none;background:linear-gradient(90deg,#0000,#fffbebbf,#0000);width:70%;height:100%;animation:3.2s ease-in-out 2.2s infinite invBtnSheen;position:absolute;top:0;left:-120%;transform:skew(-20deg)}@keyframes invBtnSheen{0%,70%{left:-120%}to{left:220%}}.inv-open-btn:hover,.inv-open-btn:focus-visible{color:#fdf3d5;background:linear-gradient(135deg,#a8162a,#7c0e1e);border-color:#a8162a;outline:none;transform:translateY(-2px);box-shadow:0 12px 32px #a8162a59}.inv-open-btn:active{transform:translateY(0)scale(.98)}@keyframes invFadeDown{0%{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:translateY(0)}}@keyframes invFadeUp{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}@media (max-height:760px){.inv-heading{font-size:clamp(1.7rem,5.5vh,2.6rem)}.inv-eyebrow{margin-bottom:1vh}.inv-hint{margin-bottom:2vh}.envelope-scene{width:min(60vw,360px)}.inv-open-btn{margin-top:2.6vh;padding:12px 34px}}@media (max-height:600px){.envelope-scene{width:min(46vw,300px)}.inv-heading{font-size:clamp(1.4rem,5vh,2rem)}.inv-heart-divider{margin:1vh 0 .8vh}}@media (max-width:480px){.envelope-scene{width:min(82vw,360px)}.inv-content{padding-left:16px;padding-right:16px}}@media (max-width:360px){.envelope-scene{width:88vw}}@media (prefers-reduced-motion:reduce){.inv-eyebrow,.inv-heading,.inv-heart-divider,.inv-hint,.envelope-scene,.inv-open-btn,.inv-rc-orn,.inv-rc-bn,.inv-rc-kick,.inv-rc-names,.inv-rc-rule,.inv-rc-date,.inv-rc-day,.inv-rc-note{animation-duration:10ms!important;animation-delay:0s!important}.env-flap,.env-card,.env-seal{transition-duration:.3s!important;transition-delay:0s!important}.inv-botanical,.envelope-scene:after,.inv-h-heart{animation:none!important}}body.invitation-locked .music-toggle-btn,body.invitation-locked .scroll-top-btn{opacity:0!important;pointer-events:none!important}.inv-eyebrow,.inv-heading,.inv-heart-divider,.inv-hint{z-index:6;position:relative}.envelope:before{z-index:4}.envelope{animation:4.8s ease-in-out 1.6s infinite envIdleFloat}@keyframes envIdleFloat{0%,to{transform:translateY(0)rotate(0)}50%{transform:translateY(-6px)rotate(-.4deg)}}.invitation-stage.is-opening 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sealResist{0%{transform:translate(-50%,-58%)scale(1)}45%{transform:translate(-50%,-58%)scale(1.14)}to{transform:translate(-50%,-58%)scale(1.04)}}.seal-half{backface-visibility:hidden;background:radial-gradient(circle at 34% 30%,#d4536a 0%,#a8162a 45%,#7c0e1e 78%,#5f0a16 100%);border-radius:50%;justify-content:center;align-items:center;gap:2px;display:flex;position:absolute;inset:0;box-shadow:inset 0 0 0 3px #ffe2a859,inset 0 -6px 12px #28000880,inset 0 5px 10px #ffffff2e,0 8px 18px #5a0a1873}.seal-half:before{content:"";border:1.5px dashed #f6dfa480;border-radius:50%;position:absolute;inset:5px}.seal-half.seal-left{clip-path:polygon(0 0,56% 0,46% 16%,57% 33%,45% 51%,56% 69%,46% 85%,54% 100%,0 100%)}.seal-half.seal-right{clip-path:polygon(56% 0,100% 0,100% 100%,54% 100%,46% 85%,56% 69%,45% 51%,57% 33%,46% 16%);animation-delay:50ms}.invitation-stage.seal-split .env-seal{animation:none;transform:translate(-50%,-58%)scale(1.04)}.invitation-stage.seal-split .env-seal:before{content:"";pointer-events:none;background:radial-gradient(circle,#fff0c8f2 0%,#f0c96e8c 30%,#0000 68%);animation:.5s ease-out forwards sealFlash;position:absolute;inset:-14px}@keyframes sealFlash{0%{opacity:0;transform:scale(.4)}25%{opacity:1}to{opacity:0;transform:scale(1.7)}}.invitation-stage.seal-split .seal-half.seal-left{animation:.9s cubic-bezier(.36,.62,.42,1) 40ms forwards sealFallL}.invitation-stage.seal-split .seal-half.seal-right{animation:.9s cubic-bezier(.36,.62,.42,1) 90ms forwards sealFallR}@keyframes sealFallL{0%{opacity:1;transform:translate(0)rotate(0)}to{opacity:0;transform:translate(-34px,52px)rotate(-30deg)}}@keyframes sealFallR{0%{opacity:1;transform:translate(0)rotate(0)}to{opacity:0;transform:translate(32px,58px)rotate(26deg)}}.invitation-stage.letter-out .env-card{z-index:2;animation:1.18s cubic-bezier(.24,.9,.32,1) forwards envLetterOut}@keyframes envLetterOut{0%{transform:translateY(9%)rotate(0)scale(1)}58%{transform:translateY(-46%)rotate(-1.8deg)scale(1.015)}80%{transform:translateY(-80%)rotate(.9deg)scale(1.03)}to{transform:translateY(-94%)rotate(0)scale(1.05)}}.invitation-stage.is-revealed .env-card{animation:envLetterDrift .9s var(--ease-smooth,ease) forwards}@keyframes envLetterDrift{0%{opacity:1;transform:translateY(-94%)rotate(0)scale(1.05)}to{opacity:0;transform:translateY(-118%)rotate(0)scale(1.12)}}.invitation-stage.is-revealed .inv-content{opacity:1;transform:none}.invitation-stage.is-revealed .inv-eyebrow,.invitation-stage.is-revealed .inv-heading,.invitation-stage.is-revealed .inv-heart-divider,.invitation-stage.is-revealed .inv-hint,.invitation-stage.is-revealed .inv-open-btn{opacity:0;pointer-events:none;transition:opacity .6s,transform .6s;animation:none;transform:translateY(-3vh)scale(.97)}.invitation-stage.letter-out .inv-eyebrow,.invitation-stage.letter-out .inv-heading,.invitation-stage.letter-out 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