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

body {
    height: 100vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #16002b, #32005c, #09001a);
    color: white;
}

/* Birthday Card */

.birthday-card {
    text-align: center;
    z-index: 10;
    padding: 35px;
}

.cake {
    font-size: 90px;
    animation: cakeBounce 2s infinite;
}

h1 {
    font-size: 45px;
    margin-top: 10px;
    text-shadow: 0 0 15px #ff69b4;
}

h2 {
    font-size: 55px;
    margin: 10px 0 20px;
    color: #ff8bd8;
    text-shadow: 0 0 20px #ff1493;
    animation: glow 1.5s infinite alternate;
}

p {
    font-size: 18px;
    line-height: 1.6;
    margin-bottom: 25px;
}

button {
    padding: 14px 30px;
    border: none;
    border-radius: 30px;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    color: #32005c;
    background: white;
    box-shadow: 0 0 20px #fff;
    transition: 0.3s;
}

button:hover {
    transform: scale(1.1);
}

/* Balloons */

.balloon {
    position: absolute;
    bottom: -100px;
    width: 50px;
    height: 65px;
    border-radius: 50%;
    animation: floatUp linear forwards;
}

.balloon::after {
    content: "";
    position: absolute;
    width: 2px;
    height: 90px;
    background: white;
    left: 50%;
    top: 63px;
}

@keyframes floatUp {
    from {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }

    to {
        transform: translateY(-120vh) rotate(15deg);
        opacity: 0;
    }
}

/* Animations */

@keyframes glow {
    from {
        text-shadow: 0 0 10px #ff1493;
    }

    to {
        text-shadow: 0 0 35px #ff69b4;
    }
}

@keyframes cakeBounce {
    0%, 100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

/* Confetti */

.confetti {
    position: absolute;
    width: 8px;
    height: 15px;
    top: -20px;
    animation: confettiFall linear forwards;
}

@keyframes confettiFall {
    to {
        transform: translateY(110vh) rotate(720deg);
    }
}

/* Mobile */

@media (max-width: 600px) {

    h1 {
        font-size: 32px;
    }

    h2 {
        font-size: 42px;
    }

    p {
        font-size: 16px;
    }

    .cake {
        font-size: 70px;
    }
}
.wish { display: none; 
    max-width: 600px; 
    margin: 30px auto 0;
    padding: 25px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.1); 
    backdrop-filter: blur(10px);
    box-shadow: 0 0 25px rgba(255, 105, 180, 0.4);
    animation: wishAppear 1.5s ease forwards;
     } 
     .wish h3 { font-size: 25px; 
        margin-bottom: 15px; 
        color: #ff9ddd;
     } 
     .wish p { 
     font-size: 16px;
     line-height: 1.7;
     margin: 0;
    } 
    @keyframes wishAppear {
         from {
             opacity: 0;
              transform: translateY(30px);
             } 
             to {
                 opacity: 1; 
                 transform: translateY(0);
            }
    }