/**
 * Copyright 2019 Google LLC.
 * SPDX-License-Identifier: Apache-2.0
 */

:root {
  color-scheme: dark light;
  supported-color-schemes: dark light;
   --duration: 0.5s;
  --timing: ease;  
}

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

html {
  font-family: sans-serif;
  font-size: 12pt;
  max-width: 900px;
  position: relative;
  margin: 0 auto;
}

body {
  background-color: var(--background-color);
  color: var(--color);
  transition:
    color var(--duration) var(--timing),
    background-color var(--duration) var(--timing);  
}

h1 {
  color: var(--main-headline-color);
  line-height: 1;
}

:any-link {
  color: var(--link-color);
}

p {
  line-height: 1.5;
}

figure {
  margin: 1rem 0;  
}

figcaption {
  margin: 0.5rem 0;    
}

button,
input {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;  
  padding: 0.5rem 1rem;
  margin: 0;  
  border: none;
  outline: solid 1px var(--color);
  outline-offset: -1px;
}

button {        
  color: var(--accent-color);  
  background: var(--accent-background-color);  
  cursor: pointer;
  text-align: center;
}

input:focus,
button:focus {
  outline: -webkit-focus-ring-color auto 5px;
  outline-offset: -2px;
}

button:active {
  transform: scale(0.99);
}

img {
  vertical-align: middle;
  max-width: 100%;
  height: auto;
}

img[src*=".svg"]:hover {
  filter: var(--icon-filter_hover);
}

dark-mode-toggle {
  --dark-mode-toggle-light-icon: url(//googlechromelabs.github.io/dark-mode-toggle/demo/moon.png);
  --dark-mode-toggle-dark-icon: url(//googlechromelabs.github.io/dark-mode-toggle/demo/sun.png);    
  
  position: absolute;
  top: 0.5rem;
  right: 0;  
}