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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: 24px 20px 24px;
  position: relative;
  overflow-x: hidden;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--page-bg) fixed;
  -webkit-font-smoothing: antialiased;
  transition: background 700ms ease;
}

h1,
h2,
h3 {
  font-family: var(--font-heading);
  margin: 0;
  line-height: 1.15;
}

p {
  margin: 0;
  line-height: 1.55;
}

button {
  font-family: inherit;
}

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

.shell {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

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