@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+Pro:wght@400;600&display=swap');

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

html {
  font-size: 16px;
  background-color: var(--color-background);
}

:root {
  color-scheme: light;
}

body {
  font-family: var(--font-family-sans);
  color: var(--color-text);
  background-color: var(--color-background);
  margin: 0;
  line-height: 1.6;
  color-scheme: light;
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

a:hover,
a:focus {
  color: var(--color-primary-dark);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

main {
  display: block;
}

.wrapper {
  width: min(100%, var(--max-width-page));
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-12) 0;
}

.section--narrow {
  width: min(100%, var(--max-width-text));
  margin: 0 auto;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-family-serif);
  color: var(--color-text);
  margin-top: 0;
}

h1 {
  font-size: var(--font-size-2xl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
}

ul,
ol {
  margin-top: 0;
  padding-left: var(--space-8);
}

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

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  z-index: 100;
  transition: top 0.2s ease-in-out;
}

.skip-link:focus {
  top: 0;
}

.header,
.footer {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.footer {
  border-bottom: none;
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
}

.footer p {
  margin-bottom: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

nav {
  padding: var(--space-4) 0;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav__brand {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  text-decoration: none;
}

.nav__toggle {
  display: none;
}

.nav__list {
  display: flex;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item a {
  text-decoration: none;
  font-weight: 600;
  color: var(--color-text);
}

.nav__item a[aria-current="page"] {
  color: var(--color-primary);
}

@media (max-width: 720px) {
  .nav__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav__list {
    flex-wrap: wrap;
  }
}