body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    background: url('./images/background.png') no-repeat center center fixed;
    background-size: cover;
    background-color: #040f0f;
}
.body404 {
    background: url('./images/background404.png') no-repeat center center fixed;
}
.blink-square {
    width: 200px;
    height: 200px;
    background-color: black;
    margin: 20px auto;
    transition: background-color 0.1s;
}
.mainShift {
    top: +30%;
    transform: translateY(+30%);
}
.window {
    background-color: #040f0f;
    color: #2ba84a;
    padding: 30px;
    border-radius: 50px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 700px;
    text-align: center;
    position: relative;
    margin: 150px auto;
}
.window404 {
    color: #a71e19;
}
.separator {
    width: 100%;
    height: 2px;
    background-color: #2ba84a;
    margin: 15px 0;
}
.separator404 {
    background-color: #a71e19;
}
img {
    margin-bottom: 10px;
    margin-top: 10px;
}
p {
    text-align: left;
    margin-bottom: 10px;
    margin-top: 10px;
    line-height: 1.5;
}
.p404 {
    text-align: center;
}
.picture {
    border-radius: 30px;
    background-color: #040f0f;
    padding: 10px;
    border: 1px solid #2ba84a;
}
.title {
    margin-top: 10px;
    margin-bottom: 30px;
    font-size: 2em;
}
.feedback {
    height: 20px;
    font-size: 0.9em;
    text-align: center;
    margin-bottom: 10px;
    color: transparent;
}
input[type="text"] {
    background-color: #040f0f;
    color: #2ba84a;
    border: 1px solid #2ba84a;
    border-radius: 6px;
    padding: 2px 20px 2px 20px;
    font-size: 1.8em;
    width: 100%;
    text-transform: uppercase;
}
input[type="text"]::placeholder {
    color: #2ba84a;
    text-align: center;
}
button {
    margin-top: 20px;
    background-color: #248232;
    color: black;
    border: none;
    padding: 10px 40px;
    border-radius: 20px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
}
button:hover {
    background-color: #2ba84a;
}
button:disabled {
    background-color: #555;
    color: #aaa;
    cursor: not-allowed;
}
.button404 {
    background-color: #a71e19;
}
.button404:hover {
    background-color: #b63531;
}
@media screen and (max-width: 768px) {
    .window {
        width: 90%;
        max-width: 500px;
    }
}