pleshevski.ru/old/styles/base/reset.scss

@use "sass:math";

:root {
  // Default Colors
  --default-color-black:      #000000;
  --default-color-black-0:    hsla(0, 0%, 0%, 0);
  --default-color-black-0x15: hsla(0, 0%, 0%, 0.15);
  --default-color-black-0x6:  hsla(0, 0%, 0%, 0.6);
  --default-color-white:      #ffffff;
  --default-color-warning:    #ffee58;
  --default-color-error:      #b00008;
  --default-color-success:    #417505;
  // Project Colors
  --color-brand-blue:       #1966df;
  --color-brand-faded-blue: #f5f5ff;
  --color-graphite:         #212121;
  --color-warm-gray:        #757575;
  --color-pale:             #b6b6b6;
  --color-faded:            #e0e0e0;
  // Layout
  --max-content-width:  #{$page-max-width + px};
  --min-content-width:  #{$page-min-width + px};
  // Borders
  --rad-std-half: #{math.div($radius, 2)};
  --rad-std: #{$radius};
  --rad-std-x2: #{$radius * 2};
  --rad-std-x3: #{$radius * 3};
  // Font
  --default-font-size: 16px;
  --f-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Roboto,Oxygen-Sans, Ubuntu, Cantarell, "Segoe UI", Verdana, sans-serif;
  --f-wei-thin: 100;
  --f-wei-reg: 400;  // Normal = Regular
  --f-wei-bold: 700;
  --f-wei-black: 800;  // Extra Bold = Black
  // Z-index
  --z-ind-background: -100;
  --z-ind-backward: -1;
  --z-ind-select: 50;
  --z-ind-tooltip: 75;
  --z-ind-high: 100;
  --z-ind-overlay: 500;
}

*,
::before,
::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  background-color: var(--default-color-white);
  font-size: var(--default-font-size);
  line-height: 1;
  height: 100%;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  color: var(--color-graphite);
  font-weight: var(--f-wei-regular);
  font-family: var(--f-family);
  min-width: var(--min-content-width);
  width: 100%;
  height: 100%;
}

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

summary {}

details > summary {
  cursor: pointer;
  list-style: none;

  &::before,
  &::-webkit-details-marker {
    display: none;
  }
}

audio, canvas, progress, video {
  display: inline-block;
  vertical-align: baseline;
}

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

address, caption, cite, code, dfn, strong, th, var {
  font-style: normal;
  font-weight: var(--f-wei-regular);
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--f-wei-bold);
  line-height: 1;
}

b, strong, optgroup {
  font-weight: var(--f-wei-bold);
}

dfn, em, i {
  font-style: italic;
}

iframe, abbr, acronym, img {
  border: 0;
  outline: 0;
}

mark {
  background: var(--default-color-warning);
  color: var(--default-color-black);
}

small {
  font-size: 80%;
}

sub, sup {
  font-size: 80%;
  vertical-align: baseline;
  line-height: 0;
  position: relative;
}

sup {
  top: -0.25em;
}

sub {
  bottom: -0.25em;
}

q::before, q::after {
  content: '';
}

hr {
  box-sizing: content-box;
  height: 0;
  overflow: visible;
}

code, kbd, pre, samp {
  font-family: monospace;
  font-size: 1em;
}

pre {
  overflow: auto;
}

figure {
  margin: 0;
}

fieldset {
  border: 1px solid var(--color-pale);
  padding: 0.25rem 0.75rem;
}

legend {
  border: 0;
  color: inherit;
  display: table;
  word-spacing: normal;
  max-width: 100%;
}

button, input, optgroup, select, textarea  {
  color: inherit;
  font: inherit;
}

button, input {
  overflow: visible;
}

button, select {
  text-transform: none;
}

input {
  line-height: 1;
}

button::-moz-focus-inner,
[type='button']::-moz-focus-inner,
[type='reset']::-moz-focus-inner,
[type='submit']::-moz-focus-inner {
  border-style: none;
  padding: 0;
}

button:-moz-focusring,
[type='button']:-moz-focusring,
[type='reset']:-moz-focusring,
[type='submit']:-moz-focusring {
  outline: 1px dotted ButtonText;
}

input, input:focus,
button, textarea,
select, a:focus {
  outline: 0;
  border: 0;
}

input::-webkit-input-placeholder,
input:-moz-placeholder,
textarea::-webkit-input-placeholder,
textarea:-moz-placeholder {
  color: var(--color-pale);
}

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

input[type='search'] {
  -webkit-appearance: textfield;
  outline-offset: -2px;
}

input[type='search']::-webkit-search-cancel-button,
input[type='search']::-webkit-search-decoration {
  -webkit-appearance: none;
}

::-webkit-file-upload-button {
  -webkit-appearance: button;
  color: inherit;
}

button,
input[type='button'],
input[type='reset'],
input[type='submit'] {
  -webkit-appearance: button;
  cursor: pointer;
}

button[disabled], input[disabled] {
  cursor: no-drop;
}

button::-moz-focus-inner,
input::-moz-focus-inner {
  border: 0;
  outline: 0;
}

textarea {
  overflow: auto;
  resize: none;
}

a {
  cursor: pointer;
  text-decoration: none;
  color: var(--color-brand-blue);
  border-bottom: dashed 1px var(--color-brand-blue);

  // TODO: move to other place 
  @extend .anim;

  &:hover, &:focus {
    border-bottom-style: solid;
  }
}

table {
  border-collapse: collapse;
  border-spacing: 0;
  table-layout: fixed;
}

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

[hidden], template {
  display: none;
}

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

::selection {
  background-color: var(--default-color-black);
  color: var(--default-color-white);
}