@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&display=swap";:root{--primary-color: #799F76;--primary-dark: #457359;--bg-gradient-start: #F9DEE5;--bg-gradient-end: #E09FB3;--text-dark: #457359;--text-light: #799F76;--glass-bg: rgba(255, 255, 255, .75);--glass-border: rgba(255, 255, 255, .85);--shadow: 0 4px 16px rgba(69, 115, 89, .08);--envelope-body: #E09FB3;--envelope-flap: #D37897;--envelope-inner: #F9DEE5;--envelope-stroke: #D37897;--paper-bg: #fdf5f8;--paper-lines: #f0dde3}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Outfit,sans-serif;background:linear-gradient(135deg,var(--bg-gradient-start),var(--bg-gradient-end));min-height:100vh;display:flex;justify-content:center;align-items:center;color:var(--text-dark);overflow-x:hidden;position:relative}body.page-yes{background:linear-gradient(135deg,#f9dee5,#e09fb3)}body.page-no{background:#457359;color:#fff}.floating-hearts{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:1001;overflow:hidden}.floating-heart{position:absolute;bottom:-40px;font-size:1.4rem;opacity:0;animation:floatUp linear forwards;pointer-events:none}@keyframes floatUp{0%{opacity:0;transform:translateY(0) rotate(0) scale(.5)}10%{opacity:.6}50%{opacity:.4}to{opacity:0;transform:translateY(-110vh) rotate(360deg) scale(1.2)}}.container{width:100%;max-width:600px;padding:20px;position:relative;z-index:1}.glass-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:12px;padding:40px;box-shadow:var(--shadow);text-align:center}h1{font-size:2.5rem;margin-bottom:10px;color:var(--primary-color)}p{font-size:1.1rem;line-height:1.6;color:var(--text-light);margin-bottom:20px}input[type=text],input[type=password]{width:100%;padding:15px 20px;margin:10px 0;border:2px solid rgba(224,159,179,.5);border-radius:20px;font-size:1rem;font-family:Outfit,sans-serif;background:#fff;outline:none;transition:border-color .3s}input[type=text]:focus,input[type=password]:focus{border-color:var(--primary-color)}button{padding:12px 30px;border:none;border-radius:20px;font-size:1.1rem;font-weight:600;cursor:pointer;font-family:Outfit,sans-serif;background:var(--primary-color);color:#fff;margin-top:10px;transition:transform .2s ease,box-shadow .2s ease}button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #799f7666}button:active{transform:translateY(0)}.error-message{color:#ff6b6b;font-size:.9rem;margin-top:5px;margin-bottom:10px}.hidden{display:none!important}.page-title{text-align:center;font-size:2rem;font-weight:700;color:var(--text-dark);margin-bottom:6px;animation:fadeUpIn .8s ease forwards}.progress-tracker{text-align:center;margin-bottom:28px;animation:fadeUpIn .8s .3s ease forwards;opacity:0;transform:translateY(10px)}.progress-bar{width:80%;max-width:280px;height:6px;background:#ffffff59;border-radius:3px;margin:0 auto 8px;overflow:hidden}.progress-fill{height:100%;width:0%;background:linear-gradient(90deg,var(--envelope-body),#f06292);border-radius:3px;transition:width .6s ease}.progress-text{font-size:.85rem;font-weight:600;color:var(--text-dark);opacity:.75;margin-bottom:0}.envelopes-grid{display:flex;flex-direction:column;gap:24px;align-items:center;position:relative}.envelope-path{position:absolute;top:0;left:50%;transform:translate(-50%);width:3px;height:100%;z-index:0;display:flex;flex-direction:column;pointer-events:none}.path-segment{flex:1;width:3px;background:repeating-linear-gradient(to bottom,rgba(194,116,144,.25) 0px,rgba(194,116,144,.25) 6px,transparent 6px,transparent 12px);transition:background .6s ease}.path-segment.path--active{background:linear-gradient(to bottom,var(--envelope-body),var(--envelope-stroke));box-shadow:0 0 8px #e8a4b866;border-radius:2px}.letter-label{text-align:center;font-size:.85rem;font-weight:600;color:var(--text-dark);letter-spacing:1px;text-transform:uppercase;margin-bottom:8px;opacity:.7}.letter{max-width:420px;width:100%;position:relative;display:flex;flex-direction:column;align-items:center;z-index:10;transition:z-index 0s}.letter--open{z-index:20}.envelope-wrapper{position:relative;z-index:2}.letter--locked .envelope{filter:grayscale(.6) brightness(.85);cursor:not-allowed}.letter--locked .envelope:hover{animation:none;box-shadow:0 4px 15px #0000001a}.letter--locked .envelope-heart{display:none}.envelope-lock{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:1.3rem;z-index:12;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2))}.envelope-glow{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:170px;height:120px;border-radius:12px;background:radial-gradient(ellipse,rgba(240,98,146,.25) 0%,transparent 70%);animation:glowPulse 2s ease-in-out infinite;pointer-events:none;z-index:0}@keyframes glowPulse{0%,to{opacity:.5;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.15)}}.letter--read .envelope:after{content:"✓";position:absolute;top:-8px;right:-8px;width:22px;height:22px;background:var(--primary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;z-index:12;box-shadow:0 2px 6px #00000026}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.shake{animation:shake .4s ease}.envelope{width:140px;height:95px;background:var(--envelope-body);position:relative;margin:auto;z-index:2;cursor:pointer;border-radius:6px;transition:box-shadow .3s ease,transform .3s ease;box-shadow:0 4px 15px #0000001a}.envelope:hover{animation:wiggle .4s ease-in-out infinite;box-shadow:0 8px 30px #0000002e}@keyframes wiggle{0%,to{transform:rotate(0)}25%{transform:rotate(2.5deg)}75%{transform:rotate(-2.5deg)}}.letter--open .envelope-wrapper{display:none}.envelope-heart{position:absolute;bottom:10px;left:50%;transform:translate(-50%);font-size:1rem;z-index:10;filter:drop-shadow(0 1px 2px rgba(0,0,0,.15));animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:translate(-50%) scale(1)}50%{transform:translate(-50%) scale(1.15)}}.letter--open .envelope-heart{animation:none;opacity:.5}.envelope-flap{width:0;height:0;border-left:70px solid transparent;border-right:70px solid transparent;border-top:50px solid var(--envelope-flap);display:block;position:absolute;left:0;right:0;top:0;margin:auto;z-index:5;transform-origin:top center;transform:scaleY(1);transition:transform .3s ease}.letter--open .envelope-flap{transform:translateY(-55px) scaleY(-1)}.envelope-paper,.letter--open .envelope-paper,.letter--close .envelope-paper{display:none}.envelope-detail{overflow:hidden;height:100%;width:100%;display:block;position:absolute;top:0;left:0;background:var(--envelope-body);border-top:2px solid transparent;border-radius:6px}.envelope-detail:before{content:"";width:90px;height:90px;background:var(--envelope-body);display:block;position:absolute;left:0;right:0;top:48px;margin:auto;transform:rotate(45deg);border:3px solid var(--envelope-stroke)}.envelope-detail:after{content:"";width:90px;height:90px;background:var(--envelope-body);display:block;position:absolute;left:0;right:0;top:-62px;margin:auto;transform:rotate(45deg);border:3px solid var(--envelope-stroke)}.letter--open .envelope-detail{border-top:2px solid var(--envelope-stroke)}.letter--open .envelope-detail:after{visibility:hidden}.paper{width:130px;height:0;background:var(--paper-bg);margin:0 auto;border-radius:6px;position:relative;z-index:1;overflow:hidden;opacity:0;transform:translateY(-20px);box-shadow:0 4px 20px #00000014}.letter--open .paper{animation:paperOpen .6s .05s forwards}.letter--close .paper{animation:paperClose .4s forwards}@keyframes paperOpen{0%{width:130px;height:0;opacity:0;transform:translateY(-20px)}30%{opacity:1;transform:translateY(-10px)}to{width:100%;height:350px;opacity:1;transform:translateY(-10px)}}@keyframes paperClose{0%{width:100%;height:350px;opacity:1;transform:translateY(-10px)}70%{opacity:.5;transform:translateY(-20px)}to{width:130px;height:0;opacity:0;transform:translateY(-20px)}}.paper-content{color:var(--text-dark);font-family:Outfit,sans-serif;font-size:1.05rem;line-height:1.7;padding:30px 25px 25px;opacity:0;height:100%;overflow-y:auto;position:relative}.letter--open .paper-content{animation:waitfade 1s .3s forwards}@keyframes waitfade{0%{opacity:0}to{opacity:1}}.paper-close{position:absolute;right:12px;top:8px;font-size:1.1rem;font-weight:600;cursor:pointer;color:var(--envelope-stroke);z-index:10;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background .2s ease,color .2s ease}.paper-close:hover{background:#c2749026;color:var(--text-dark)}.action-buttons>div{flex-wrap:wrap}.btn-success{background:var(--primary-color);padding:14px 40px;font-size:1.15rem}.btn-success:hover{background:var(--primary-dark)}.btn-neutral{background:#e2e8f0;color:#64748b;padding:14px 40px;font-size:1.15rem}.btn-neutral:hover{background:#cbd5e1}.intro-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:var(--bg-gradient-start);display:flex;justify-content:center;align-items:center;z-index:1000;transition:opacity 1s ease,visibility 1s ease}.intro-content{text-align:center;padding:30px}.intro-text-1,.intro-text-2,.intro-text-3,.intro-text-4{opacity:0;transform:translateY(20px);animation:fadeUpIn 1s ease forwards}.intro-text-1{animation-delay:.5s;font-size:2.5rem;color:var(--text-dark);margin-bottom:20px}.intro-text-2{animation-delay:2s;font-size:1.2rem;color:var(--text-light)}.intro-text-3{animation-delay:3.5s;font-size:1.2rem;color:var(--text-light);margin-bottom:30px}.intro-text-4{animation-delay:5s}@keyframes fadeUpIn{to{opacity:1;transform:translateY(0)}}.letter:nth-child(1){animation:letterEntrance .6s .1s ease both}.letter:nth-child(2){animation:letterEntrance .6s .3s ease both}.letter:nth-child(3){animation:letterEntrance .6s .5s ease both}@keyframes letterEntrance{0%{opacity:0;transform:translateY(30px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 480px){h1{font-size:2rem}.glass-card{padding:20px}.page-title{font-size:1.6rem}.intro-text-1{font-size:2rem}.envelope{width:120px;height:80px}.envelope-flap{border-left-width:60px;border-right-width:60px;border-bottom-width:48px}.envelope-detail:before{width:76px;height:76px;top:40px}.envelope-detail:after{width:76px;height:76px;top:-52px}.envelope-paper{width:100px;height:48px}.paper{width:110px}@keyframes paperOpen{0%{width:110px;height:0;opacity:0;transform:translateY(-20px)}30%{opacity:1;transform:translateY(-10px)}to{width:100%;height:320px;opacity:1;transform:translateY(-10px)}}@keyframes paperClose{0%{width:100%;height:320px;opacity:1;transform:translateY(-10px)}70%{opacity:.5;transform:translateY(-20px)}to{width:110px;height:0;opacity:0;transform:translateY(-20px)}}}.flower-garden{position:fixed;bottom:0;left:0;width:100%;height:180px;z-index:1;pointer-events:none;overflow:hidden}.grass-base{position:absolute;bottom:0;left:0;width:100%;height:50px;background:linear-gradient(to top,#457359 0%,#799F76 60%,transparent 100%);z-index:3}.grass-blade{position:absolute;bottom:30px;width:4px;background:linear-gradient(to top,#457359,#799f76);border-radius:2px 2px 0 0;transform-origin:bottom center;z-index:4}.grass-blade:nth-child(odd){animation:grassSway 3s ease-in-out infinite}.grass-blade:nth-child(2n){animation:grassSway 3.5s ease-in-out infinite reverse}@keyframes grassSway{0%,to{transform:rotate(-3deg)}50%{transform:rotate(3deg)}}.flower{position:absolute;bottom:45px;z-index:2;animation:flowerSway 4s ease-in-out infinite;transform-origin:bottom center}@keyframes flowerSway{0%,to{transform:rotate(-2deg)}50%{transform:rotate(2deg)}}.flower-stem{width:3px;background:linear-gradient(to top,#457359,#6b9c68);margin:0 auto;border-radius:1px;position:relative}.flower-leaf{position:absolute;width:14px;height:8px;background:#799f76;border-radius:0 50% 50% 0;top:50%}.flower-leaf--left{right:100%;border-radius:50% 0 0 50%;transform:rotate(-15deg)}.flower-leaf--right{left:100%;transform:rotate(15deg)}.flower-head--tulip{width:20px;height:22px;position:relative;margin:0 auto}.flower-head--tulip .petal{position:absolute;width:12px;height:20px;border-radius:50% 50% 0 0;bottom:0}.flower-head--tulip .petal--left{left:0;transform:rotate(-10deg)}.flower-head--tulip .petal--center{left:4px}.flower-head--tulip .petal--right{right:0;transform:rotate(10deg)}.flower-head--daisy{width:26px;height:26px;position:relative;margin:0 auto}.flower-head--daisy .petal-ring{position:absolute;width:100%;height:100%}.flower-head--daisy .petal{position:absolute;width:8px;height:12px;border-radius:50%;top:50%;left:50%}.flower-head--daisy .petal:nth-child(1){transform:translate(-50%,-100%) rotate(0)}.flower-head--daisy .petal:nth-child(2){transform:translate(-50%,-100%) rotate(45deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(3){transform:translate(-50%,-100%) rotate(90deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(4){transform:translate(-50%,-100%) rotate(135deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(5){transform:translate(-50%,-100%) rotate(180deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(6){transform:translate(-50%,-100%) rotate(225deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(7){transform:translate(-50%,-100%) rotate(270deg);transform-origin:bottom center}.flower-head--daisy .petal:nth-child(8){transform:translate(-50%,-100%) rotate(315deg);transform-origin:bottom center}.flower-head--daisy .center{position:absolute;width:10px;height:10px;border-radius:50%;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2}.flower-head--round{width:16px;height:16px;border-radius:50%;margin:0 auto;box-shadow:0 0 4px #0000001a;position:relative}.flower-head--round:after{content:"";width:6px;height:6px;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.color-pink .petal,.color-pink .flower-head--round{background:#d37897}.color-pink .flower-head--round:after{background:#e09fb3}.color-light-pink .petal,.color-light-pink .flower-head--round{background:#e09fb3}.color-light-pink .flower-head--round:after{background:#f9dee5}.color-blush .petal,.color-blush .flower-head--round{background:#f9dee5}.color-blush .flower-head--round:after{background:#fff}.color-white .petal{background:#fff}.color-white .center{background:#f5d442}.color-white .flower-head--round{background:#fff}.color-white .flower-head--round:after{background:#f5d442}.color-rose .petal,.color-rose .flower-head--round{background:#c94570}.color-rose .flower-head--round:after{background:#d37897}.flower:nth-child(odd){animation-duration:3.5s}.flower:nth-child(3n){animation-duration:5s;animation-direction:reverse}.flower:nth-child(4n+1){animation-duration:4.2s}.auth-container,.main-container,.success-card,.neutral-card{position:relative;z-index:5}