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

* {
  margin: 0;
  padding: 0;
}

/* Prevent font size inflation */
html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}

/* Remove default margin in favour of better control in authored CSS */
body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin-block-end: 0;
}

/* Remove list styles on ul, ol elements with a list role, which suggests default styling will be removed */
ul[role="list"],
ol[role="list"] {
  list-style: none;
}

/* Set core body defaults */
body {
  min-height: 100vh;
  line-height: 1.5;
}

/* Set shorter line heights on headings and interactive elements */
h1,
h2,
h3,
h4,
button,
input,
label {
  line-height: 1.1;
}

/* Balance text wrapping on headings */
h1,
h2,
h3,
h4 {
  text-wrap: balance;
}

/* A elements that don't have a class get default styles */
a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}

/* Make images easier to work with */
img,
picture {
  max-width: 100%;
  display: block;
}

/* Inherit fonts for inputs and buttons */
input,
button,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* Anything that has been anchored to should have extra scroll margin */
:target {
  scroll-margin-block: 5ex;
}

/* remove animations for people who've turned them off */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: sans-serif;
  background-color: #f0f2f5;
}

main {
  padding-inline: 1rem;
}
.flex {
  display: flex;
  gap: var(--gap, 1rem);
}

.grid {
  display: grid;
  gap: var(--gap, 1rem);
}

.flow > *:where(:not(:first-child)) {
  margin-top: var(--flow-space, 1rem);
}

/* visibility-hidden pattern */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  /* added line */
  border: 0;
}
.main-nav {
  background-color: #f0f0f0;
  padding: 1rem;
  margin-bottom: 1rem;
}

.main-nav__ul {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  list-style: none;
  margin: 0;
  padding: 0;

  & > li {
    flex-grow: 1;
  }
}

.main-nav__a {
  display: block;
  padding: 0.5rem 1rem;
  border-radius: 0.25rem;
  text-decoration: none;
  color: #333;
  background-color: #fff;
  transition: background-color 0.2s;
}

.main-nave__a--active {
  background-color: #b1bfd3;
}

.main-nav__a:hover {
  background-color: #e0e0e0;
}