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

body, html {
    height: 100%;
    background-color: #070707 !important;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}

.full-page-button {
    display: block;
    width: 100%;
    height: 100%;
    background: transparent !important;
    text-align: center;
    position: relative;
    text-decoration: none;
    border: none;
    cursor: pointer;
    outline: none;
}

.button-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1.5rem;
    color: #fff;
    text-transform: uppercase;
    white-space: nowrap;
    overflow: hidden;
    border-right: 2px solid #fff;
    width: 15ch;
    animation: typing 2s steps(14, end) forwards, blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from {
        width: 0;
    }
    to {
        width: 15ch;
    }
}

@keyframes blink-caret {
    50% {
        border-color: transparent;
    }
}

.hidden {
    display: none;
}

#assembly-screen {
    text-align: center;
}

.main-title {
    font-size: 4rem;
    color: transparent;
    background: linear-gradient(90deg, rgb(172, 181, 197), rgb(150, 180, 230), rgb(200, 230, 255), #fff);
    -webkit-background-clip: text;
    background-clip: text;
    background-size: 200% 200%; 
    animation: gradient-shift 2s linear infinite; 
}

.sub-title {
    font-size: 3rem;
    color: transparent;
    background: linear-gradient(90deg, rgb(172, 181, 197), rgb(150, 180, 230), rgb(200, 230, 255), #fff);
    -webkit-background-clip: text;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradient-shift 2s linear infinite; 
    margin-top: 20px;
}

@keyframes gradient-shift {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 200% 50%;
    }
}