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

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-system);
  font-size: 1rem;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.22em;
}

button,
a,
input,
select,
textarea {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 4px;
  box-shadow: var(--shadow-focus);
}

h1,
h2,
h3,
p,
figure,
blockquote {
  margin-top: 0;
}

h1,
h2,
h3 {
  line-height: 1.12;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

h2 {
  margin-bottom: 1.5rem;
  font-size: clamp(2.25rem, 5vw, 4.6rem);
  font-weight: 700;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
}

::selection {
  background: var(--color-yellow);
  color: var(--color-deep);
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: 0.75rem;
  left: 0.75rem;
  min-height: 44px;
  padding: 0.6rem 1rem;
  transform: translateY(-150%);
  border-radius: var(--radius-small);
  background: var(--color-surface);
  color: var(--color-deep);
  font-weight: 700;
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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