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

:focus-visible {
  outline: 0.2rem solid #fff;
  outline-offset: 0.2rem;
  box-shadow: 0 0 0 0.3rem var(--color-ink);
}

:root {
  --color-bg: rgb(249, 233, 233);
  --color-primary: #c9293f;
  --color-ink: #111;
  --color-muted: #555;
  --color-light: rgba(255, 255, 255, 0.92);

  --font: sans-serif;
  --min-font-size: 1rem;
  --border: 0.15rem solid var(--color-ink);
  --shadow: 0.2rem 0.2rem 0 var(--color-ink);
}

body {
  background: var(--color-bg);
  font-family: var(--font);
  font-size: var(--min-font-size);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

canvas {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 0;
}

h1,
h2 {
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--color-light);
}

.btn {
  box-shadow: var(--shadow);
  background: var(--color-primary);
  border: var(--border);

  width: max-content;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 1rem;
  transition: transform 0.1s, box-shadow 0.1s;
  cursor: pointer;

  &:hover {
    transform: translate(-0.125rem, -0.125rem);
    box-shadow: 0.3125rem 0.3125rem 0 var(--color-ink);
  }
}

.skip-link {
  background: var(--color-ink);
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 100;
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  padding: 1rem;

  &:focus {
    top: 1rem;
  }
}