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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

h1, h2, h3 { font-weight: 700; }
h1 { font-size: clamp(2.25rem, 4vw, 3.5rem); line-height: 1.15; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); line-height: 1.2; }
h3 { font-size: clamp(1.35rem, 2.2vw, 1.75rem); line-height: 1.3; }
p  { font-size: clamp(0.95rem, 1.1vw, 1.0625rem); line-height: 1.7; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-on-dark);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}