* {
    box-sizing: border-box;
}

html,
body.tinkerscience-signin-page {
    min-height: 100%;
}

body.tinkerscience-signin-page {
    margin: 0;
    min-width: 320px;
    min-height: 600px;
    background: #97c3e8 url("signin.png") top center / 960px 600px no-repeat;
    color: #fff;
    font-family: Tahoma, Geneva, sans-serif;
    font-size: 18px;
}

.tinkerscience-signin {
    width: min(336px, calc(100% - 24px));
    margin: 320px auto 0;
}

.tinkerscience-signin h1 {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.tinkerscience-signin p {
    min-height: 42px;
    margin: 0 0 2px;
}

.tinkerscience-signin label {
    display: grid;
    grid-template-columns: 115px 180px;
    align-items: center;
    gap: 10px;
    justify-content: center;
    text-align: right;
}

.tinkerscience-signin label br {
    display: none;
}

.tinkerscience-signin input[type="text"],
.tinkerscience-signin input[type="password"] {
    width: 180px;
    margin: 0;
    padding: 4px;
    border: 1px solid #777;
    color: #3a3a3a;
    font: 16px Tahoma, Geneva, sans-serif;
}

.tinkerscience-signin .form-actions {
    margin: -2px 0 0 125px;
}

.tinkerscience-signin .action {
    width: auto;
    min-width: 100px;
    padding: 5px 12px;
    border: 1px solid #699130;
    border-radius: 999px;
    background: linear-gradient(#9bc95d, #638f2e);
    color: #fff;
    font: 18px Tahoma, Geneva, sans-serif;
    cursor: pointer;
}

.tinkerscience-signin .action:hover,
.tinkerscience-signin .action:focus-visible {
    background: #f90;
    color: #900;
}

.tinkerscience-signin__recovery {
    display: block;
    margin: 8px 0 0 125px;
    color: #fff;
    font-size: 12px;
}

.tinkerscience-signin .alert {
    margin: 0 0 8px 125px;
    padding: 6px 8px;
    border: 1px solid #fff;
    background: rgb(0 0 0 / 65%);
    font-size: 13px;
}

.tinkerscience-signin .alert__list {
    margin: 0;
    padding-left: 16px;
}

@media (max-width: 420px) {
    .tinkerscience-signin {
        width: min(310px, calc(100% - 16px));
    }

    .tinkerscience-signin label {
        grid-template-columns: 105px minmax(0, 180px);
        gap: 8px;
    }

    .tinkerscience-signin input[type="text"],
    .tinkerscience-signin input[type="password"] {
        width: 100%;
    }

    .tinkerscience-signin .form-actions,
    .tinkerscience-signin__recovery,
    .tinkerscience-signin .alert {
        margin-left: 113px;
    }
}