body {
    /* background-image: url(back-Image2.jpg); */
    background: linear-gradient(-45deg, #0f0c29, #302b63, #24243e, #141e30);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    text-align: center;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

/* Optional: Add floating particles effect */
body::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
        radial-gradient(circle, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    background-position: 0 0, 40px 40px;
    animation: particleFloat 20s linear infinite;
    pointer-events: none;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes particleFloat {
    0% {
        transform: translateY(0);
    }
    100% {
        transform: translateY(-100px);
    }
}

h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: inline-block;
    width: 100px;
    font-size: 2rem;
    animation: fadeInDown 1s ease-in-out;
}

@keyframes fadeInDown {
    0% {
        opacity: 0;
        transform: translateY(-30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: fadeInUp 1.2s ease-in-out;
    z-index: 10;
}

@keyframes fadeInUp {
    0% {
        opacity: 0;
        transform: translate(-50%, -40%);
    }
    100% {
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    font-size: larger;
    font-weight: bold;
    border-radius: 50px;
    width: 120px;
    height: 45px;
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
    animation: pulse 2s ease-in-out infinite;
    margin: 5px;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 8px 15px rgba(0, 0, 0, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 12px 20px rgba(0, 0, 0, 0.4);
    }
}

button:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.4);
}

button:active {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
    transform: scale(0.95);
    animation: none;
}

/* Tablet Screens */
@media screen and (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
        width: 80px;
    }
    
    .container {
        top: 45%;
    }
    
    button {
        width: 100px;
        height: 40px;
        font-size: medium;
    }
}

/* Mobile Screens */
@media screen and (max-width: 480px) {
    body::before {
        background-size: 30px 30px, 50px 50px;
    }
    
    h1 {
        font-size: 1.2rem;
        width: 70px;
    }
    
    .container {
        top: 40%;
        width: 90%;
    }
    
    button {
        width: 90px;
        height: 38px;
        font-size: small;
        border-radius: 25px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.3);
    }
    
    button:active {
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    }
}

/* Small Mobile Screens */
@media screen and (max-width: 360px) {
    h1 {
        font-size: 1rem;
        width: 60px;
    }
    
    button {
        width: 80px;
        height: 35px;
        font-size: small;
    }
}