// Copyright (c) 2016-2018 VMware, Inc. All Rights Reserved.
// This software is released under MIT license.
// The full license information can be found in LICENSE in the root directory of this project.

@include exports('reboot.clarity') {
    // Customizing BS4 reboot file below from Bootstrap 4.0.0-alpha.3
    // Styles taken directly from BS4 reboot file.
    // Un-needed styles commented out below...
    //BS4 reboot (http://v4-alpha.getbootstrap.com/content/reboot/)

    // Reboot
    //
    // Global resets to common HTML elements and more for easier usage by Bootstrap.
    // Adds additional rules on top of Normalize.css, including several overrides.


    // Reset the box-sizing
    //
    // Change from `box-sizing: content-box` to `border-box` so that when you add
    // `padding` or `border`s to an element, the overall declared `width` does not
    // change. For example, `width: 100px;` will always be `100px` despite the
    // `border: 10px solid red;` and `padding: 20px;`.
    //
    // Heads up! This reset may cause conflicts with some third-party widgets. For
    // recommendations on resolving such conflicts, see
    // http://getbootstrap.com/getting-started/#third-box-sizing.
    //
    // Credit: https://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/

    html {
      box-sizing: border-box;
    }

    *,
    *::before,
    *::after {
      box-sizing: inherit;
    }

    // Make viewport responsive
    //
    // @viewport is needed because IE 10+ doesn't honor <meta name="viewport"> in
    // some cases. See http://timkadlec.com/2012/10/ie10-snap-mode-and-responsive-design/.
    // Eventually @viewport will replace <meta name="viewport">.
    //
    // However, `device-width` is broken on IE 10 on Windows (Phone) 8,
    // (see http://timkadlec.com/2013/01/windows-phone-8-and-device-width/ and https://github.com/twbs/bootstrap/issues/10497)
    // and the fix for that involves a snippet of JavaScript to sniff the user agent
    // and apply some conditional CSS.
    //
    // See http://getbootstrap.com/getting-started/#support-ie10-width for the relevant hack.
    //
    // Wrap `@viewport` with `@at-root` for when folks do a nested import (e.g.,
    // `.class-name { @import "bootstrap"; }`).
    @at-root {
        @-ms-viewport { width: device-width; }
    }


    //
    // Reset HTML, body, and more
    //

    html {
        // Sets a specific default `font-size` for user with `rem` type scales.
        // font-size: $font-size-root;
        // NOTE: Clarity handles this^^^ on its own, not needed here

        // As a side-effect of setting the @viewport above,
        // IE11 & Edge make the scrollbar overlap the content and automatically hide itself when not in use.
        // Unfortunately, the auto-showing of the scrollbar is sometimes too sensitive,
        // thus making it hard to click on stuff near the right edge of the page.
        // So we add this style to force IE11 & Edge to use a "normal", non-overlapping, non-auto-hiding scrollbar.
        // See https://github.com/twbs/bootstrap/issues/18543
        -ms-overflow-style: scrollbar;
        // Changes the default tap highlight to be completely transparent in iOS.
        -webkit-tap-highlight-color: rgba(0,0,0,0);
    }

    // body {
        // NOTE: Clarity handles this on its own, not needed here

        // // Make the `body` use the `font-size-root`
        // font-family: $font-family-base;
        // font-size: $font-size-base;
        // line-height: $line-height-base;
        // // Go easy on the eyes and use something other than `#000` for text
        // color: $body-color;
        // // By default, `<body>` has no `background-color` so we set one as a best practice.
        // background-color: $body-bg;
    // }

    // Suppress the focus outline on elements that cannot be accessed via keyboard.
    // This prevents an unwanted focus outline from appearing around elements that
    // might still respond to pointer events.
    //
    // Credit: https://github.com/suitcss/base
    [tabindex="-1"]:focus {
        outline: none !important;
    }

    // NOTE: All of the following taken care of in Clarity

    // //
    // // Typography
    // //
    //
    // // Remove top margins from headings
    // //
    // // By default, `<h1>`-`<h6>` all receive top and bottom margins. We nuke the top
    // // margin for easier control within type scales as it avoids margin collapsing.
    // h1, h2, h3, h4, h5, h6 {
    //     margin-top: 0;
    //     margin-bottom: .5rem;
    // }
    //
    // // Reset margins on paragraphs
    // //
    // // Similarly, the top margin on `<p>`s get reset. However, we also reset the
    // // bottom margin to use `rem` units instead of `em`.
    // p {
    //     margin-top: 0;
    //     margin-bottom: 1rem;
    // }
    //
    // // Abbreviations and acronyms
    // abbr[title],
    // // Add data-* attribute to help out our tooltip plugin, per https://github.com/twbs/bootstrap/issues/5257
    // abbr[data-original-title] {
    //     cursor: help;
    //     border-bottom: 1px dotted $abbr-border-color;
    // }
    //
    // address {
    //     margin-bottom: 1rem;
    //     font-style: normal;
    //     line-height: inherit;
    // }
    //
    // ol,
    // ul,
    // dl {
    //     margin-top: 0;
    //     margin-bottom: 1rem;
    // }
    //
    // ol ol,
    // ul ul,
    // ol ul,
    // ul ol {
    //     margin-bottom: 0;
    // }
    //
    // dt {
    //     font-weight: $dt-font-weight;
    // }
    //
    // dd {
    //     margin-bottom: .5rem;
    //     margin-left: 0; // Undo browser default
    // }
    //
    // blockquote {
    //     margin: 0 0 1rem;
    // }

    // //
    // // Links
    // //
    //
    // a {
    //     color: $link-color;
    //     text-decoration: $link-decoration;
    //
    //     @include hover-focus {
    //         color: $link-hover-color;
    //         text-decoration: $link-hover-decoration;
    //     }
    //
    //     &:focus {
    //         @include tab-focus();
    //     }
    // }

    // And undo these styles for placeholder links/named anchors (without href)
    // which have not been made explicitly keyboard-focusable (without tabindex).
    // It would be more straightforward to just use a[href] in previous block, but that
    // causes specificity issues in many other styles that are too complex to fix.
    // See https://github.com/twbs/bootstrap/issues/19402

    // NOTE: The following override makes card links and buttons links gray.
    // Commenting out because it does not appear that we need it. Make sure to fix the color inherit problem if uncommenting
    // a:not([href]):not([tabindex]) {
    //     color: inherit;
    //     text-decoration: none;
    //
    //     @include hover-focus {
    //         color: inherit;
    //         text-decoration: none;
    //     }
    //
    //     &:focus {
    //         outline: none;
    //     }
    // }

    // //
    // // Code
    // //
    //
    // pre {
    //     // Remove browser default top margin
    //     margin-top: 0;
    //     // Reset browser default of `1em` to use `rem`s
    //     margin-bottom: 1rem;
    //     // Normalize v4 removed this property, causing `<pre>` content to break out of wrapping code snippets
    //     overflow: auto;
    // }

    //
    // Figures
    //

    // figure {
    //     // Normalize adds `margin` to `figure`s as browsers apply it inconsistently.
    //     // We reset that to create a better flow in-page.
    //     margin: 0 0 1rem;
    // }


    //
    // Images
    //

    img {
        // By default, `<img>`s are `inline-block`. This assumes that, and vertically
        // centers them. This won't apply should you reset them to `block` level.
        vertical-align: middle;
        // Note: `<img>`s are deliberately not made responsive by default.
        // For the rationale behind this, see the comments on the `.img-fluid` class.
    }


    // iOS "clickable elements" fix for role="button"
    //
    // Fixes "clickability" issue (and more generally, the firing of events such as focus as well)
    // for traditionally non-focusable elements with role="button"
    // see https://developer.mozilla.org/en-US/docs/Web/Events/click#Safari_Mobile

    [role="button"] {
        cursor: pointer;
    }


    // Avoid 300ms click delay on touch devices that support the `touch-action` CSS property.
    //
    // In particular, unlike most other browsers, IE11+Edge on Windows 10 on touch devices and IE Mobile 10-11
    // DON'T remove the click delay when `<meta name="viewport" content="width=device-width">` is present.
    // However, they DO support removing the click delay via `touch-action: manipulation`.
    // See:
    // * http://v4-alpha.getbootstrap.com/content/reboot/#click-delay-optimization-for-touch
    // * http://caniuse.com/#feat=css-touch-action
    // * http://patrickhlauke.github.io/touch/tests/results/#suppressing-300ms-delay

    a,
    area,
    button,
    [role="button"],
    input,
    label,
    select,
    summary,
    textarea {
        touch-action: manipulation;
    }

    //
    // Tables
    //

    // table {
    //     // No longer part of Normalize since v4
    //     border-collapse: collapse;
    //     // Reset for nesting within parents with `background-color`.
    //     background-color: $table-bg;
    // }

    // caption {
    //     padding-top: $table-cell-padding;
    //     padding-bottom: $table-cell-padding;
    //     color: $text-muted;
    //     text-align: left;
    //     caption-side: bottom;
    // }

    // th {
    //     // Centered by default, but left-align-ed to match the `td`s below.
    //     text-align: left;
    // }


    //
    // Forms
    //

    // label {
    //     // Allow labels to use `margin` for spacing.
    //     display: inline-block;
    //     margin-bottom: .5rem;
    // }

    // Work around a Firefox/IE bug where the transparent `button` background
    // results in a loss of the default `button` focus styles.
    //
    // Credit: https://github.com/suitcss/base/
    button:focus {
        outline: 1px dotted;
        outline: 5px auto -webkit-focus-ring-color;
    }

    input,
    button,
    select,
    textarea {
        // // Remove all `margin`s so our classes don't have to do it themselves.
        // margin: 0;
        // // Normalize includes `font: inherit;`, so `font-family`. `font-size`, etc are
        // // properly inherited. However, `line-height` isn't addressed there. Using this
        // // ensures we don't need to unnecessarily redeclare the global font stack.
        // line-height: inherit;
        // iOS adds rounded borders by default
        border-radius: 0;
    }

    input[type="radio"],
    input[type="checkbox"] {
        // Apply a disabled cursor for radios and checkboxes.
        //
        // Note: Neither radios nor checkboxes can be readonly.
        &:disabled {
            // cursor: $cursor-disabled;
            cursor: not-allowed;;
        }
    }


    input[type="date"],
    input[type="time"],
    input[type="datetime-local"],
    input[type="month"] {
        // Remove the default appearance of temporal inputs to avoid a Mobile Safari
        // bug where setting a custom line-height prevents text from being vertically
        // centered within the input.
        //
        // Bug report: https://github.com/twbs/bootstrap/issues/11266
        -webkit-appearance: listbox;
    }

    textarea {
        // Textareas should really only resize vertically so they don't break their (horizontal) containers.
        resize: vertical;
    }

    fieldset {
        // Chrome and Firefox set a `min-width: min-content;` on fieldsets,
        // so we reset that to ensure it behaves more like a standard block element.
        // See https://github.com/twbs/bootstrap/issues/12359.
        min-width: 0;
        // Reset the default outline behavior of fieldsets so they don't affect page layout.
        padding: 0;
        margin: 0;
        border: 0;
    }

    legend {
        // Reset the entire legend element to match the `fieldset`
        display: block;
        width: 100%;
        padding: 0;
        // margin-bottom: .5rem;
        // font-size: 1.5rem;
        line-height: inherit;
    }

    input[type="search"] {
        // This overrides the extra rounded corners on search inputs in iOS so that our
        // `.form-control` class can properly style them. Note that this cannot simply
        // be added to `.form-control` as it's not specific enough. For details, see
        // https://github.com/twbs/bootstrap/issues/11586.
        -webkit-appearance: none;
    }

    // Always hide an element with the `hidden` HTML attribute (from PureCSS).
    [hidden] {
        display: none !important;
    }

    // END BS4 REBOOT STYLES


    //Overrides carried over from earlier versions of Clarity

    dl {
        margin-bottom: 0;
        margin-top: 1rem;
    }

    table {
        border-spacing: 0;
    }

    a:link {
        color: $clr-link-color;
        text-decoration: none;
    }

    a:hover {
        color: $clr-link-hover-color;
        text-decoration: underline;
    }

    a:active {
        color: $clr-link-active-color;
        text-decoration: underline;
    }

    a:visited {
        color: $clr-link-visited-color; //TODO: Not in the color palette. Will be added soon.
        text-decoration: none;
    }
}
