body {
    background-color: rgb(31, 41, 51);
    font-family: Arial, Helvetica, sans-serif;
}

.wrapper {
    position: absolute;
    top: 25%;
    left: 50%;
    transform: translate(-50%, -15%);
    width: 400px;
    max-width: 90%;
}

.title {
    text-align: center;
    color: white;
    font-size: 30px;
    margin-bottom: 20px;
}

.app {
    width: 100%;
    box-sizing: border-box;
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    margin: 0 auto;
    box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.5);
}

.video img {
    width: 100%;
    border-radius: 5px;
}

.video p {
    margin: 20px 0px;
}

.app input {
    width: 100%;
    box-sizing: border-box;
    height: 40px;
}

.app input[type="url"] {
    border: 1px solid rgb(96, 109, 123);
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
}

.app input[type="submit"] {
    background-color: rgb(31, 41, 51);
    color: white;
    border: none;
    border-radius: 5px;
    margin-top: 10px;
    cursor: pointer;
    transition: 0.2s;
}

.app input[type="submit"]:hover {
    background-color: rgb(96, 109, 123);
}

.app input[type="submit"]:disabled {
    background-color: rgb(96, 109, 123);
    cursor: not-allowed;
}

.app select {
    width: 100%;
    box-sizing: border-box;
    height: 40px;
    border: 1px solid rgb(96, 109, 123);
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    font-size: 16px;
}

.app select option {
    font-size: 16px;
}

.credits {
    color: rgb(96, 109, 123);
    text-align: center;
}

.credits a {
    color: rgb(96, 109, 123);
    text-decoration: underline;
}