style.css

@import url('https://fonts.cdnfonts.com/css/uni-sans-regular');

body {
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    position: relative;
    overflow: hidden;
    background-color: #021024;
}

body::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: url('https://images.unsplash.com/photo-1472712739516-7ad2b786e1f7?ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D&auto=format&fit=crop&w=2669&q=80') no-repeat center center;
    background-size: cover;
    z-index: -1;
    filter: blur(20px);
}

.container {
    color: white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;  /* added to center the text */
}

header {
    margin-bottom: 50px;
    background-color: transparent;
}

h1 {
    font-weight: 300;
}

button {
    font-size: 16px;
    font-weight: 500;
    color: white;
    background-color: #052659;
    border: none;
    padding: 15px 32px;
    margin: 4px 2px;
    border-radius: 25px;
    transition-duration: 0.4s;
    cursor: pointer;
    outline: none;
}

button:hover {
    background-color: rgb(58, 47, 252);
}

.top-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 85px;
    background-color: rgba(255, 255, 255, 0);
    color: rgba(255, 255, 255, 0);
}

#logo {
    position: absolute;
    top: 10px;
    right: 25px;
}