*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    background: linear-gradient(135deg, #fdd9b5, #e9c7a7);
    font-family:'Segoe UI', sans-serif;
    text-align:center;
    overflow:hidden;
    position:relative;
}

/* ---------------- START SCREEN ---------------- */
#start-screen{
    position:fixed;
    width:100%;
    height:100%;
    background:#e9c7a7;
    display:flex;
    justify-content:center;
    align-items:center;
    z-index:1000;
    overflow:hidden;
}

#start-btn{
    padding:20px 50px;
    font-size:30px;
    font-weight:bold;
    border:none;
    border-radius:10px;
    cursor:pointer;
    background:#d94c5c;
    color:#fff;
    box-shadow: 0 5px 0 #b33b45;
    transition: transform 0.2s;
    z-index:10;
    position:relative;
}

#start-btn:hover{
    transform: scale(1.05);
}

/* ---------------- BIRTHDAY LAYOUT ---------------- */
#birthday-layout {
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    height:100vh;
}

.banner-img{
    margin-top:40px;
}

.banner-img img{
    width:80%;
    max-width:700px;
}

.name{
    margin-top:50px;
    font-size:70px;
    font-weight:900;
    color:#d94c5c;
    text-shadow:4px 4px 0 #ffffff;
    display:inline-block;
    transition: transform 0.3s ease, color 0.3s ease;
    cursor:pointer;
}

.name:hover{
    color: #ffd700;
}

.cake-img{
    margin-top:40px;
}

.cake-img img{
    width:300px;
    max-width:80%;
}

/* ---------------- CONFETTI PARTICLE ---------------- */
.confetti{
    position:absolute;
    width:6px;
    height:6px;
    border-radius:50%;
    pointer-events:none;
    opacity:0.9;
}

/* ---------------- RESPONSIVE ---------------- */
@media(max-width:600px){
    .name{
        font-size:45px;
    }
    #start-btn{
        font-size:24px;
        padding:15px 30px;
    }
}