wagtail/wagtail/admin/static_src/wagtailadmin/scss/layouts/login.scss

@import 'wagtailadmin/scss/helpers';

// overrides default nice padding defined in variables.scss
$desktop-nice-padding: 100px;

html,
body,
.content-wrapper {
    background-color: $color-grey-1;
    color: $color-grey-3;
}

html {
    height: 100%;
}

body {
    margin-left: 0;
    height: 100%;
}

.content-wrapper {
    border: 0;
}

.wrapper {
    padding-left: $mobile-nice-padding;
    padding-right: $mobile-nice-padding;
    margin-left: 0;
    max-width: none;
}

h1 {
    font-weight: 300;
    font-size: 2em;
    line-height: 1em;
    color: $color-white;
    text-transform: none;
    white-space: nowrap;
}

form {
    width: 100%;

    ul {
        @include unlist();
    }
}

label {
    width: auto;
    color: $color-white;
}

.button,
a.button {
    line-height: 1.2em;
    font-size: 1.5em;
    padding: 1.1em 2.4em;
    height: 3.5em;
}

input[type=checkbox]:before {
    background-color: #333;
    color: #555;
    border: 1px solid #555;
}

.fields {
    max-width: none;
}

.fields li {
    padding: 1em 0;

    &.full {
        position: relative;
        padding: 0;

        label {
            display: none;
        }

        input {
            border-top: 1px dashed $color-input-border;
        }
    }

    &:first-child input {
        border: 0;
    }
}

.fields .checkbox {
    padding-top: 2em;
    padding-bottom: 2em;
}

.field {
    padding: 0;
}

.iconfield .input:before {
    display: none;
}

// Special full-width, one-off fields i.e a single text or textarea input
.full input {
    border-radius: 0;
    font-weight: 300;
    border: 0;
    padding: 1.5em $mobile-nice-padding 1.5em $mobile-nice-padding;
    font-size: 1.6em;
    line-height: 1.6em;
}

.help {
    opacity: 1;
    position: absolute;
    font-size: 1.3em;
    top: 50%;
    margin-top: -0.5em;
    right: 5%;
}

.messages {
    margin: 1em 0;
    z-index: 5;

    ul {
        margin: 0;

        &:before {
            display: none;
        }

        li {
            border-radius: 3px;
        }
    }
}

@include media-breakpoint-up(sm) {
    .content-wrapper {
        float: none;
        height: auto;
        width: 100%;
        display: inline-block;
        vertical-align: middle;
    }

    // centres login form vertically
    .wrapper {
        position: relative;
        height: 100%;
        padding: 0 $desktop-nice-padding;

        &:before {
            content: '';
            width: 0;
            display: inline-block;
            height: 100%;
            vertical-align: middle;
            margin-left: -0.4em;
        }
    }

    h1 {
        font-size: 4em;
    }

    .full {
        margin: 0 (-$desktop-nice-padding);

        .iconfield {
            .input:before {
                display: inline-block;
                position: absolute;
                color: $color-grey-4;
                border: 2px solid $color-grey-4;
                border-radius: 100%;
                width: 1em;
                padding: 0.3em;
                left: $desktop-nice-padding;
                margin-top: -1.1rem;
                top: 50%;
                font-size: 1.3rem;
            }

            input {
                padding-left: ($desktop-nice-padding + 50px);
            }
        }
    }
}