@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

:root{

--bg1:#fff8fc;
--bg2:#ffd9ea;
--bg3:#ffc7df;
--bg4:#f6d8ff;

--white:#ffffff;

--text:#ffffff;

--accent:#ff5a98;

}

*{

margin:0;
padding:0;
box-sizing:border-box;

}

body{

height:100vh;

overflow-x:hidden;
overflow-y:auto;

display:flex;

justify-content:center;

align-items:center;

font-family:Poppins,sans-serif;

background:

linear-gradient(

135deg,

var(--bg1),

var(--bg2),

var(--bg3)

);

}

.background{

position:fixed;

inset:0;

overflow:hidden;

pointer-events:none;

}

.blob{

position:absolute;

border-radius:50%;

filter:blur(180px);

opacity:.5;

animation:move 18s ease-in-out infinite;

}

.pink{

width:650px;
height:650px;

background:#ff8fc0;

top:-200px;
left:-150px;

}

.white{

width:550px;
height:550px;

background:white;

right:-120px;
bottom:-100px;

animation-delay:4s;

}

.purple{

width:600px;
height:600px;

background:#e6c4ff;

left:55%;
top:40%;

animation-delay:8s;

}

.peach{

width:500px;
height:500px;

background:#ffd8c5;

bottom:-180px;
left:15%;

animation-delay:12s;

}

@keyframes move{

    0%{
        transform:
        translate(0,0)
        scale(1);
    }

    25%{
        transform:
        translate(-80px,60px)
        scale(1.15);
    }

    50%{
        transform:
        translate(70px,-50px)
        scale(.92);
    }

    75%{
        transform:
        translate(-40px,-30px)
        scale(1.08);
    }

    100%{
        transform:
        translate(0,0)
        scale(1);
    }

}

/* ==========================
   HERO
========================== */

.hero{

    position:relative;
    z-index:10;

    width:min(90%,760px);

    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;

    text-align:center;
    
    gap:12px;

    transform:translateY(-20px);
}

/* Small Glass Badge */

.badge{

    padding:10px 22px;

    border-radius:999px;

    background:rgba(255,255,255,.12);

    border:1px solid rgba(255,255,255,.35);

    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);

    color:#ffffff;

    font-size:.9rem;
    font-weight:500;

    letter-spacing:.5px;

    margin-bottom:35px;

    box-shadow:
    0 20px 50px rgba(255,120,180,.22),
    0 8px 20px rgba(255,255,255,.08) inset;
 position:relative;
 overflow:hidden;
}



.badge::before{

content:"";

position:absolute;

top:0;

left:-120%;

width:60%;

height:100%;

background:

linear-gradient(

90deg,

transparent,

rgba(255,255,255,.55),

transparent

);

transform:skewX(-25deg);

animation:shine 6s linear infinite;

}

/* ==========================
   TITLES
========================== */


.hero h1 span{

    display:block;

}

.hero h2{

    font-size:1.6rem;

    font-weight:500;

    color:rgba(255,255,255,.9);

    margin-bottom:25px;

}

.hero p{

    width:min(90%,520px);

    color:rgba(255,255,255,.82);

    font-size:1.1rem;

    line-height:1.8;

    margin-bottom:50px;

}

/* ==========================
   BUTTON
========================== */

.hero button{

    position:relative;

    padding:18px 42px;

    border:none;

    border-radius:999px;

    cursor:pointer;

    color:white;

    font-size:1rem;

    font-weight:600;

    background:rgba(255,255,255,.12);

    border:1px solid rgba(255,255,255,.35);

    backdrop-filter:blur(22px);
    -webkit-backdrop-filter:blur(22px);

    transition:.35s ease;

    overflow:hidden;

    
 animation:floatButton 5s ease-in-out infinite;
}

.hero button::before{

content:"";

position:absolute;

top:0;

left:-120%;

width:60%;

height:100%;

background:

linear-gradient(

90deg,

transparent,

rgba(255,255,255,.45),

transparent

);

transform:skewX(-25deg);

animation:shine 7s linear infinite;

}

.hero button:hover{

    transform:translateY(-6px) scale(1.04);

    background:rgba(255,255,255,.18);

    box-shadow:
        0 20px 50px rgba(255,120,180,.22);

}

.hero h1{
    font-size:clamp(3.8rem,7vw,5.8rem);
    line-height:.95;
    font-weight:700;
    letter-spacing:-2px;

    color:rgba(255,255,255,.95);

    text-shadow:
        0 10px 30px rgba(255,255,255,.15);

    margin-bottom:15px;
}



@keyframes floatButton{

0%,100%{

transform:translateY(0);

}

50%{

transform:translateY(-5px);

}

}

@keyframes shine{

0%{

left:-120%;

}

100%{

left:180%;

}

}

body::before{

    content:"";

    position:fixed;

    inset:0;

    pointer-events:none;

    background:

    radial-gradient(

        circle at top,

        rgba(255,255,255,.35),

        transparent 60%

    );

}

/* ==========================
   SMOOTH TRANSITIONS
========================== */

.badge,
.hero h1,
.hero h2,
.hero p,
.hero button{

    transition:
        background .35s ease,
        color .35s ease,
        transform .35s ease,
        box-shadow .35s ease,
        opacity .35s ease;

}

/* ==========================
   CHAPTER ONE
========================== */

.chapter.hidden{
    display:none;
}

.chapter{

    position:relative;

    width:100%;

    min-height:100vh;

    display:flex;

    justify-content:center;

    align-items:flex-start;

    padding:80px 20px;

    opacity:0;

    transform:translateY(80px);

    transition:all .8s ease;

    z-index:20;

}

.chapter.active{

    opacity:1;

    transform:translateY(0);

}

.chapter-card{

    width:min(92%,700px);

    padding:40px;

    border-radius:32px;

    background:rgba(255,255,255,.12);

    backdrop-filter:blur(22px);
    -webkit-backdrop-filter:blur(22px);

    border:1px solid rgba(255,255,255,.35);

    box-shadow:
        0 25px 70px rgba(255,120,180,.18);

    text-align:center;

    position:relative;

}

.chapter-card::after{

    content:"";

    position:sticky;

    bottom:0;

    display:block;

    height:50px;

    margin-top:-50px;

    background:linear-gradient(
        transparent,
        rgba(255,255,255,.18)
    );

    pointer-events:none;

}

.chapter-card h2{

    color:white;

    font-size:2.6rem;

    margin:20px 0;

}

.chapter-card p{

    color:rgba(255,255,255,.85);

    line-height:1.8;

}

.memory-paper{

    width:min(90%,600px);
    margin-inline:auto;

    min-height:430px;

    margin-top:15px;

    padding:40px;

    background-image:url("./assets/images/paper.png");
    background-position:center;
    background-size:cover;
    background-repeat:no-repeat;

    border-radius:22px;

    box-shadow:
        0 15px 35px rgba(0,0,0,.12);

    border:1px solid rgba(0,0,0,.05);

    position:relative;

    transform:rotate(-3deg);

    transition:.5s ease;

    cursor:pointer;

   display:flex;
 flex-direction:column;
 align-items:center;
 justify-content:flex-start;

}

.memory-paper:hover{

    transform:
        rotate(-2deg)
        translateY(-8px);

    box-shadow:
        0 30px 60px rgba(0,0,0,.18);

}

.memory-paper p{

    text-align:left;

 max-width:500px;

 margin-top:25px;

 line-height:2;

 white-space:pre-line;

    





}

/* ======================
   TAPE
====================== */

.tape{

    position:absolute;

    width:90px;
    height:24px;

    background:
    rgba(255,255,255,.55);

    backdrop-filter:blur(4px);

    top:-12px;

    transform:rotate(-18deg);

    border-radius:4px;

}

.tape-left{

    left:40px;

}

.tape-right{

    right:40px;

    transform:rotate(18deg);

}

/* ==========================
   POLAROID
========================== */

.polaroid{

    width:280px;

    background:#fff;

    padding:12px 12px 55px;

    border-radius:8px;

    box-shadow:
        0 18px 40px rgba(0,0,0,.18);

    margin:40px auto;

    transform:rotate(6deg);

    transition:.4s ease;

    position:relative;

}

.polaroid:hover{

    transform:
        rotate(0deg)
        scale(1.05);

}

.polaroid img{

    width:100%;

    height:300px;

    object-fit:cover;

    border-radius:4px;

    display:block;

}

.polaroid span{

    position:absolute;

    bottom:16px;

    left:50%;

    transform:translateX(-50%);

    width:100%;

    text-align:center;

    font-family:"Caveat",cursive;

    font-size:1.7rem;

    color:#333;

}

/* ==========================
   CONTINUE BUTTON
========================== */

.continue-btn{

    margin-top:40px;

    padding:14px 32px;

    border:none;

    border-radius:999px;

    background:rgba(255,255,255,.85);

    color:#444;

    font-size:1rem;

    font-weight:600;

    cursor:pointer;

    transition:.35s ease;

    box-shadow:
        0 10px 25px rgba(0,0,0,.12);

}

.continue-btn:hover{

    transform:translateY(-3px);

    background:#fff;

    box-shadow:
        0 18px 35px rgba(0,0,0,.18);

}


/* ==========================
   BIRTHDAY PAGE
========================== */

.birthday-page{

    gap:30px;

}

.birthday-page .polaroid{

    transform:rotate(-5deg);

}

.birthday-page .polaroid:hover{

    transform:rotate(0deg) scale(1.05);

}

.flower{

    font-size:2rem;

    margin:10px 0;

    transform:rotate(-15deg);

    opacity:.9;

}

/* ==========================
   FINAL LETTER
========================== */

.envelope{

    width:340px;

    height:220px;

    position:relative;

    margin:auto;

    cursor:pointer;

}

.envelope::before{

    content:"";

    position:absolute;

    inset:0;

    background:#fff;

    border-radius:12px;

    box-shadow:
        0 20px 50px rgba(0,0,0,.18);

}

.envelope-flap{

    position:absolute;

    top:0;

    left:0;

    width:100%;

    height:120px;

    background:#f8f8f8;

    clip-path:polygon(0 0,100% 0,50% 100%);

    transform-origin:top;

    transition:.8s;

    z-index:5;

}

.letter{

    position:absolute;

    left:50%;

    top:25px;

    transform:translateX(-50%);

    width:88%;

    background:white;

    border-radius:10px;

    padding:30px;

    transition:.8s;

    box-shadow:
        0 15px 35px rgba(0,0,0,.12);

}

.letter h2{

    font-size:2rem;

    color:#ff4f8f;

    margin-bottom:25px;

}

.letter p{

    color:#444;

    text-align:left;

    line-height:2;

    white-space:pre-line;

    font-size:1rem;

}

.made-by{

    margin-top:25px;

    text-align:center;

    color:#888;

    font-size:.9rem;

    font-style:italic;

}