/*! normalize-scss | MIT/GPLv2 License | bit.ly/normalize-scss */
@import 'variables';
@import 'support-for';
@import 'typey';

/**
 * 1. Change the default font family in all browsers (opinionated).
 * 2. Prevent adjustments of font size after orientation changes in IE and iOS.
 */

html {
  @include define-type-sizing();
  // Show a background image that can be used to debug your alignments.
  // @include debug-vertical-alignment();
  font-family: $base-font-family; /* 1 */
  -ms-text-size-adjust: 100%; /* 2 */
  -webkit-text-size-adjust: 100%; /* 2 */
}

/**
 * Remove the margin in all browsers (opinionated).
 */

body {
  margin: 0;
}

/* HTML5 display definitions
   ========================================================================== */

/**
 * Add the correct display in IE <10.
 * Add the correct display in Edge, IE, and Firefox for `details` or `summary`.
 * Add the correct display in IE for `main`.
 */

article,
aside,
details,
figcaption,
figure,
footer,
header,
main,
menu,
nav,
section,
summary {
  display: block;
}

/**
 * Add the correct display in IE <10.
 */

audio,
canvas,
progress,
video {
  display: inline-block;
  @if support-for(ie, 7) {
    *display: inline;
    *zoom: 1;
  }
}

/**
 * Add the correct display and remove excess height in iOS 4-7.
 */

audio:not([controls]) {
  display: none;
  height: 0;
}

/**
 * Add the correct vertical alignment in Chrome, Firefox, and Opera.
 */

progress {
  vertical-align: baseline;
}

/**
 * Add the correct display in IE <11, Safari <8, and Firefox <22.
 * 1. Add the correct display in IE.
 */

template, /* 1 */
[hidden] {
  display: none;
}

/* Links
   ========================================================================== */

/**
 * 1. Remove the gray background on active links in IE 10.
 * 2. Remove gaps in links underline in iOS 8+ and Safari 8+.
 */

a {
  background-color: transparent; /* 1 */
  -webkit-text-decoration-skip: objects; /* 2 */
}

/**
 * Remove the outline on focused links when they are also active or hovered
 * in all browsers (opinionated).
 */

a:active,
a:hover {
  outline-width: 0;
}

/* Text-level semantics
   ========================================================================== */

/**
 * 1. Remove the bottom border in Firefox <40.
 * 2. Add the correct text decoration in Chrome, Edge, IE, Opera, and Safari.
 */

abbr[title] {
  border-bottom: none; /* 1 */
  text-decoration: underline; /* 2 */
  text-decoration: underline dotted; /* 2 */
}

/**
 * Prevent the duplicate application of `bolder` by the next rule in Safari 6.
 */

b,
strong {
  font-weight: inherit;
}

/**
 * Add the correct font weight in Chrome, Edge, and Safari.
 */

b,
strong {
  font-weight: bolder;
}

/**
 * 1. Correct the inheritance and scaling of font size in all browsers.
 * 2. Correct the odd `em` font sizing in all browsers.
 */

%monospace,
code,
kbd,
samp {
  font-family: monospace, monospace; /* 1 */
  @if support-for(ie, 6) {
    _font-family: 'courier new', monospace;
  }
  font-size: 1em; /* 2 */
}

/**
 * Add the correct font style in Android <4.4.
 */

dfn {
  font-style: italic;
}

/**
 * Correct the font size and margin on `h1` elements within `section` and
 * `article` contexts in Chrome, Firefox, and Safari.
 */

h1 {
  @include type-layout(xxl, 2);

  /* Set 1 unit of vertical rhythm on the top and bottom margins. */
  @include margin(1 0, xxl);
}

h2 {
  @include type-layout(xl, 1.5);
  @include margin(1 0, xl);
}

h3 {
  @include type-layout(l, 1);
  @include margin(1 0, l);
}

h4 {
  @include type-layout(m, 1);
  @include margin(1 0, m);
}

h5 {
  @include type-layout(s, 1);
  @include margin(1 0, s);
}

h6 {
  @include type-layout(xs, 1);
  @include margin(1 0, xs);
}

/**
 * Add the correct background and color in IE <10.
 */

mark {
  background-color: #ff0;
  color: #000;
}

/**
 * Add the correct font size in all browsers.
 */

small {
  font-size: 80%;
}

/**
 * Prevent `sub` and `sup` elements from affecting the line height in
 * all browsers.
 */

sub,
sup {
  font-size: 75%;
  line-height: 0;
  position: relative;
  vertical-align: baseline;
}

sub {
  bottom: -0.25em;
}

sup {
  top: -0.5em;
}

/* Embedded content
   ========================================================================== */

/**
 * Remove the border on images inside links in IE <11.
 */

img {
  border-style: none;
  @if support-for(ie, 7) {
    /* Improve image quality when scaled in IE 7. */
    -ms-interpolation-mode: bicubic;
  }
}

/**
 * Hide the overflow in IE.
 */

svg:not(:root) {
  overflow: hidden;
}

/* Grouping content
   ========================================================================== */

/**
 * Set 1 unit of vertical rhythm on the top and bottom margin.
 */

blockquote {
  @include margin(1 $indent-amount);
}

/**
 * Address margins set differently in IE 6/7.
 */

dl,
menu,
ol,
ul {
  @include margin(1 0);
}

/**
 * Turn off margins on nested lists.
 */

ol,
ul {
  ol,
  ul {
    margin: 0;
  }
}

dd {
  margin: 0 0 0 $indent-amount;
}

/**
 * Address paddings set differently in IE 6/7.
 */

menu,
ol,
ul {
  padding: 0 0 0 $indent-amount;
}

@if support-for(ie, 7) {
  /**
   * Correct list images handled incorrectly in IE 7.
   */

  nav ul,
  nav ol {
    list-style: none;
    list-style-image: none;
  }
}

/**
 * Add the correct margin in IE 8.
 */

figure {
  @include margin(1 $indent-amount);
}

/**
 * 1. Add the correct box sizing in Firefox.
 * 2. Show the overflow in Edge and IE.
 */

hr {
  box-sizing: content-box; /* 1 */
  height: 0; /* 1 */
  overflow: visible; /* 2 */
}

/**
 * Set 1 unit of vertical rhythm on the top and bottom margin.
 */

p,
pre {
  @include margin(1 0);
}

pre {
  @extend %monospace;
}

/* Forms
   ========================================================================== */

/**
 * Known issues:
 * - By default, Chrome on OS X and Safari on OS X allow very limited styling of
 *   select, unless a border property is set. The default font weight on
 *   optgroup elements cannot safely be changed in Chrome on OSX and Safari on
 *   OS X.
 * - It is recommended that you do not style checkbox and radio inputs as
 *   Firefox's implementation does not respect box-sizing, padding, or width.
 * - Certain font size values applied to number inputs cause the cursor style of
 *   the decrement button to change from default to text.
 * - The search input is not fully stylable by default. In Chrome and Safari on
 *   OSX/iOS you can't control font, padding, border, or background. In Chrome
 *   and Safari on Windows you can't control border properly. It will apply
 *   border-width but will only show a border color (which cannot be controlled)
 *   for the outer 1px of that border. Applying -webkit-appearance: textfield
 *   addresses these issues without removing the benefits of search inputs (e.g.
 *   showing past searches). Safari (but not Chrome) will clip the cancel button
 *   on when it has padding (and textfield appearance).
 */

@if support-for(ie, 7) {
  /**
   * Correct margin displayed oddly in IE 6/7.
   */

  form {
    margin: 0;
  }
}

/**
 * 1. Change font properties to `inherit` in all browsers (opinionated).
 * 2. Remove the margin in Firefox and Safari.
 * 3. Address `font-family` inconsistency between `textarea` and other form in IE 7
 * 4. Improve appearance and consistency with IE 6/7.
 */

button,
input,
optgroup,
select,
textarea {
  font: inherit; /* 1 */
  margin: 0; /* 2 */
  @if support-for(ie, 7) {
    *font-family: $base-font-family; /* 3 */
    *vertical-align: middle; /* 4 */
  }
}

/**
 * Show the overflow in IE.
 */

button {
  overflow: visible;
}

/**
 * Remove the inheritance of text transform in Edge, Firefox, and IE.
 * 1. Remove the inheritance of text transform in Firefox.
 */

button,
select { /* 1 */
  text-transform: none;
}

/**
 * 1. Prevent a WebKit bug where (2) destroys native `audio` and `video`
 *    controls in Android 4.
 * 2. Correct the inability to style clickable types in iOS and Safari.
 */

button,
html [type="button"], /* 1 */
[type="reset"],
[type="submit"] {
  -webkit-appearance: button; /* 2 */
}

button,
[type="button"],
[type="reset"],
[type="submit"] {

  /**
   * Remove the inner border and padding in Firefox.
   */

  &::-moz-focus-inner {
    border-style: none;
    padding: 0;
  }

  /**
   * Restore the focus styles unset by the previous rule.
   */

  &:-moz-focusring {
    outline: 1px dotted ButtonText;
  }
}

/**
 * Show the overflow in Edge.
 */

input {
  overflow: visible;
  @if support-for(firefox, 29) {
    // Firefox sets `line-height` using `!important` in the UA stylesheet.
    line-height: normal;
  }
}

/**
 * 1. Add the correct box sizing in IE <11.
 * 2. Remove the padding in IE <11.
 * 3. Remove excess padding in IE 7.
 *    Known issue: excess padding remains in IE 6.
 */

[type="checkbox"],
[type="radio"] {
  box-sizing: border-box; /* 1 */
  padding: 0; /* 2 */
  @if support-for(ie, 7) {
    *height: 13px; /* 3 */
    *width: 13px; /* 3 */
  }
}

/**
 * Correct the cursor style of increment and decrement buttons in Chrome.
 */

[type="number"]::-webkit-inner-spin-button,
[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/**
 * 1. Correct the odd appearance in Chrome and Safari.
 * 2. Correct the outline style in Safari.
 */

[type="search"] {
  -webkit-appearance: textfield; /* 1 */
  outline-offset: -2px; /* 2 */

  /**
   * Remove the inner padding and cancel buttons in Chrome and Safari on OS X.
   */

  &::-webkit-search-cancel-button,
  &::-webkit-search-decoration {
    -webkit-appearance: none;
  }
}

/**
 * Correct the text style of placeholders in Chrome, Edge, and Safari.
 */

::-webkit-input-placeholder {
  color: inherit;
  opacity: 0.54;
}

/**
 * 1. Correct the inability to style clickable types in iOS and Safari.
 * 2. Change font properties to `inherit` in Safari.
 */

::-webkit-file-upload-button {
  -webkit-appearance: button; /* 1 */
  font: inherit; /* 2 */
}

/**
 * Change the border, margin, and padding in all browsers (opinionated).
 */

fieldset {
  // Apply borders and padding that keep the vertical rhythm.
  @include padding(.35 .625 .65);
  border: 1px solid #c0c0c0;
  margin: 0 2px;
}

/**
 * 1. Correct the text wrapping in Edge and IE.
 * 2. Correct the color inheritance from `fieldset` elements in IE.
 * 3. Remove the padding so developers are not caught out when they zero out
 *    `fieldset` elements in all browsers.
 * 4. Correct alignment displayed oddly in IE 6/7.
 */

legend {
  box-sizing: border-box; /* 1 */
  display: table; /* 1 */
  max-width: 100%; /* 1 */
  white-space: normal; /* 1 */
  color: inherit; /* 2 */
  padding: 0; /* 3 */
  @if support-for(ie, 7) {
    *margin-left: -7px; /* 4 */
  }
}

/**
 * Restore the font weight unset by a previous rule.
 */

optgroup {
  font-weight: bold;
}

/**
 * Remove the default vertical scrollbar in IE.
 */

textarea {
  overflow: auto;
}
