:root {
    --main-background: rgb(255, 255, 255);
    --main-primary: rgb(25, 118, 210);
    --main-secondary: rgb(33, 150, 243, 0.23);

    --main-info-background: rgb(229, 246, 253);
    --main-info-color: rgb(1, 67, 97);
    --main-info-icon-color: rgb(2, 136, 209);
    --main-error-background: rgb(253, 237, 237);
    --main-error-color: rgb(95, 33, 32);
    --main-error-icon-color: rgb(211, 47, 47);
    --main-error: rgb(211, 47, 47);
    --main-error-light: rgb(239, 85, 82);

    --input-hover-background: color-mix(in oklch, currentColor 6%, transparent);
    --input-focus-background: color-mix(in oklch, currentColor 30%, transparent);

    --action-active: rgb(0, 0, 0, .56);
    --action-disabled: rgb(0, 0, 0, .38);

    --input-text-border: rgb(0, 0, 0, .23);
    --divider-color: rgba(0, 0, 0, .12);

    --button-hover-primary-background: color-mix(in oklch, black 12%, var(--main-primary));
    --button-secondary-border: color-mix(in oklch, var(--main-primary) 50%, transparent);

    --text-primary: rgb(0, 0, 0, .87);
    --text-secondary: rgb(0, 0, 0, .6);
    --text-disabled: rgb(0, 0, 0, .38);

    --element-contrast: var(--main-background);
    --element-contrast-border: rgb(0, 0, 0);

    --font-size-label: 12px;
    --font-size-button-small: 13px;
    --font-size-button-medium: 14px;
    --font-size-button-large: 15px;
    --font-size-text: 14px;
}

.dark {
    --main-background: rgb(19, 19, 19);
    --main-primary: rgb(66, 165, 245);

    --action-active: rgb(255, 255, 255, .7);
    --action-disabled: rgb(255, 255, 255, .12);

    --input-text-border: rgb(242, 244, 248, 0.5);
    --divider-color: rgb(255, 255, 255, .12);

    --text-primary: rgb(255, 255, 255, 1);
    --text-secondary: rgb(255, 255, 255, .7);
    --text-disabled: rgb(255, 255, 255, .3);

    --element-contrast-border: rgb(255, 255, 255);
}

* {
    margin: 0;
    padding: 0;
    border: 0;
    letter-spacing: 0.025rem;
}

html {
    /* for subpixel calculations we can use rem */
    font-size: 16px;
}

body {
    background-color: var(--main-background);
    font-size: var(--font-size-text);
    color: var(--text-primary);
}

h4 {
    font-size: 34px;
    font-weight: 400;
}

.title-page {
    text-align: center;
    padding: 24px 16px;
    user-select: none;
}

.title-body {
    font-weight: 500;
}

/* Button with links are actually <a> elements */
a:not(.button) {
    color: var(--main-primary);
    text-decoration: underline color-mix(in oklch, currentColor 40%, transparent);

    &:hover {
        text-decoration-color: inherit;
    }

    &.form {
        margin: 0.719rem 0;
        font-weight: 500;
        user-select: none;
    }
}

.alert {
    background-color: var(--main-info-background);
    color: var(--main-info-color);
    padding: 8px;
    display: flex;
    gap: 16px;
    border-radius: 4px;
    letter-spacing: 0.009rem;

    .symbol {
        font-size: 24px;
        color: var(--main-info-icon-color);
    }

    .content {
        display: flex;
        gap: 16px;

        &.preserve-breaks {
            white-space: preserve-breaks;
        }

        ul {
            list-style-position: inside;

            &:not(:has(> :nth-child(2))) {
                list-style-type: none;
            }
        }

        .title {
            font-weight: 500;
            font-size: 16px;
            line-height: 24px;
            user-select: none;
        }
    }

    &.error {
        background-color: var(--main-error-background);
        color: var(--main-error-color);

        .symbol {
            color: var(--main-error-icon-color);
        }
    }
}

.button {
    width: fit-content;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    background-color: var(--main-primary);
    color: var(--element-contrast);
    font-size: var(--font-size-button-small);
    padding: 2px 4px;
    gap: 4px;
    cursor: pointer;
    transition: background-color 250ms cubic-bezier(0.4, 0, 0.2, 1),
                box-shadow 250ms cubic-bezier(0.4, 0, 0.2, 1),
                border-color 250ms cubic-bezier(0.4, 0, 0.2, 1);
    /* For the buttons with links that are actually <a> */
    text-decoration: none;

    .icon {
        flex-grow: 0;
        font-size: inherit;
        width: var(--font-size-button-small);
        height: var(--font-size-button-small);
    }
    .text {
        padding: 0 4px;
        font-weight: 500;
        text-transform: capitalize;
        line-height: 1;
        text-align: center;
    }

    &:hover {
        background-color: var(--button-hover-primary-background);
        box-shadow: 0 2px 4px -1px rgba(0,0,0,0.2),
                    0 4px 5px 0 rgba(0,0,0,0.14),
                    0 1px 10px 0 rgba(0,0,0,0.12);
    }

    &:focus {
        box-shadow: 0 3px 5px -1px rgba(0,0,0,0.2),
                    0 6px 10px 0 rgba(0,0,0,0.14),
                    0 1px 18px 0 rgba(0,0,0,0.12);
    }

    &.medium {
        padding: 8px 16px;
        gap: 8px;
        font-size: var(--font-size-button-medium);

        .icon {
            width: var(--font-size-button-medium);
            height: var(--font-size-button-medium);
        }
    }

    &.large {
        border-radius: 8px;
        font-size: var(--font-size-button-large);
        padding: 10px 20px;
        gap: 10px;

        .icon {
            width: var(--font-size-button-large);
            height: var(--font-size-button-large);
        }
    }

    &.secondary {
        background-color: var(--main-secondary);
        color: var(--text-primary);
        border: 1px solid;
        border-color: var(--button-secondary-border);
    }

    &.outline {
        border: 1px solid;
        background-color: var(--element-contrast);
        color: var(--text-primary);
        border-color: var(--element-contrast-border);

        &:hover {
            background-color: var(--element-contrast);
        }
    }

    &.action {
        .icon {
            width: 24px;
            height: 24px;
            font-size: 24px;
        }
        .text {
            flex: 1;
        }
    }

    &.text {
        background-color: transparent;
        border: none;

        &:not(.secondary) {
            color: var(--main-primary);
        }

        &:hover {
            background-color: var(--input-hover-background);
            box-shadow: none;
        }
        &:focus {
            background-color: var(--input-focus-background);
            box-shadow: none;
        }
    }

    &.full {
        width: 100%;
    }

    &.half {
        width: calc(50% - 16px);
    }

    &.form {
        height: 40px;
    }
}

a:has(.button) {
    text-decoration: none;
}

.input {
    display: flex;
    align-items: center;

    .icon-wrapper {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 42px;
        height: 42px;

        input {
            position: absolute;
            width: 42px;
            height: 42px;
            appearance: none;
            cursor: pointer;
            border-radius: 50%;
            transition: background-color 0.25s linear, color 0.2s ease-out;

            &:hover:not(:disabled) {
                background-color: var(--input-hover-background);
            }

            &:focus, &[data-focus="true"] {
                background-color: var(--input-focus-background) !important;
            }

            &:focus-visible {
                outline: none;
            }

            &:checked {
                color: var(--main-primary);
                transform: scale(1);

                &::before {
                    transform: scale(0);
                }
            }
        }

        span {
            color: var(--action-active);
            user-select: none;
        }

        input:checked ~ span {
            color: var(--main-primary);
        }
    }

    label {
        color: var(--text-primary);
        font-weight: 500;
        user-select: none;
        cursor: pointer;
    }

    &:has(:disabled) {
        .icon-wrapper {
            input {
                cursor: default;
            }
            span {
                color: var(--action-disabled) !important;
            }
        }

        label {
            color: var(--text-disabled);
            cursor: default;
        }
    }

    &.full {
        width: 100%;
    }

    &.secondary label {
        color: var(--text-secondary);
    }
}

.input-description {
    margin-left: 42px;
    color: var(--text-secondary);
}

.input-text {
    position: relative;
    width: 207px;
    /*
    'focus' needs to have a border of 2px.
    But the element and its contents also shouldn't move.
    */
    outline: 1px solid var(--input-text-border);
    border: 1px solid transparent;
    border-radius: 4px;

    &:focus-within {
        outline-color: var(--main-primary);
        border-color: var(--main-primary);

        label {
            color: var(--main-primary);
        }
    }

    &:hover:not(:focus-within):not(.error) {
        outline-color: var(--element-contrast-border);
    }

    label {
        display: inline-block;
        position: absolute;
        /* 7.5px x 2 + 1px (for the border) is roughly the height of the label, 14.4px */
        transform: translateY(-8.5px);
        transition: all 0.1s cubic-bezier(0.2, 0, 0, 1);
        margin-left: 8px;
        pointer-events: none;
        user-select: none;
    }

    label:has(+ .input-wrapper > input:placeholder-shown:not(:focus)) {
        display: inline-block;
        position: absolute;
        /* .input-wrapper has padding of 8px */
        transform: translateY(8px) translateX(8px);
        margin: 0;
        font-size: var(--font-size-text);
        color: var(--text-primary);
        background-color: transparent;
    }

    input {
        font-size: var(--font-size-text);
        line-height: 18px;
    }

    span {
        user-select: none;
    }

    &.full {
        width: auto;
        max-width: 100%;
    }

    &.error {
        outline-color: var(--main-error);

        &:focus-within {
            border-color: var(--main-error);
        }

        label {
            color: var(--main-error);
        }
    }

    &[aria-required="true"] label:after {
        content: " *";
    }

    /* We have this feature too, so disable the build-in one for Edge */
    [type="password"]::-ms-reveal {
        display: none;
    }
}

.input-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 10px 8px;
}

.input-wrapper > input {
    width: 100%;
    border: none;
    outline: none;
    padding-left: 4px;
    color: var(--text-primary);
    background-color: transparent;
    text-indent: 0;
}

.input-wrapper > span {
    cursor: pointer;
    color: var(--action-active);
    font-size: 16px;
}

.label {
    font-size: var(--font-size-label);
    padding: 0 4px;
    border-radius: 4px;
    background-color: var(--main-background);
    color: var(--text-secondary);
}

.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    padding: 8px 0;
    user-select: none;

    span {
        font-size: var(--font-size-label);
        padding: 0 8px;
    }

    &::before, &::after {
        flex: 1;
        border-top: 1px solid var(--divider-color);
        content: "";
    }
}

.split-screen {
    height: 100dvh;
    display: grid;
    grid-template-areas: "background content";
    grid-template-columns: 1fr 1fr;
}

.content {
    grid-area: content;
    width: min(400px, 100%);
    display: flex;
    flex-direction: column;
    justify-self: center;
    align-self: center;
}

.login-input {
    display: flex;
    flex-direction: column;
    padding: 0 24px;
    gap: 8px;

    &.spacious {
        gap: 16px;
    }
}

.logo {
    pointer-events: none;
    user-select: none;
    align-self: center;
    max-height: 125px;
    max-width: calc(100% - 64px);
}

.login-login-input {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.login-input-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    padding-top: 8px;

    &.spacious {
        gap: 16px;
    }
}

.login-input-container-text {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.action-list {
    display: flex;
    flex-direction: column;
    gap: 8px;

    &.spacious {
        gap: 16px;
        margin: 8px 0;
    }
}

.group-horizontal {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    white-space: nowrap;
    gap: 16px;

    &.reverse {
        flex-direction: row-reverse;
    }

    &:not(.no-flex) > * {
        flex: 1;
    }
}

.qr-code {
    display: flex;
    justify-content: center;
    width: 100%;
    height: 100%;
    user-select: none;
    pointer-events: none;
}

.login-background {
    grid-area: background;
    width: 50vw;
    height: 100dvh;
    position: fixed;
    object-position: center center;
    object-fit: cover;
    overflow: hidden;
    pointer-events: none;
    user-select: none;
}

@media (width < 1024px) {
    .split-screen {
        grid-template-areas: "content";
        grid-template-columns: 1fr;
    }
    .login-background {
        display: none;
    }
}