/* Reset & base element styles */

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

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

html:focus-within {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-400);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img,
picture,
svg {
  max-width: 100%;
  display: block;
}

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

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

h1,
h2,
h3,
h4,
p,
figure {
  margin: 0;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.005em;
  color: var(--color-text);
}

h1 {
  font-size: var(--fs-900);
  font-weight: 800;
}

h2 {
  font-size: var(--fs-800);
  font-weight: 800;
}

h3 {
  font-size: var(--fs-700);
}

h4 {
  font-size: var(--fs-600);
}

p {
  color: var(--color-text-soft);
}

button {
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* Accessible focus ring, consistent across interactive elements */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

::selection {
  background: var(--navy-800);
  color: var(--paper-000);
}

.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;
}

/* Skip link for keyboard users */
.skip-link {
  position: absolute;
  top: -48px;
  left: var(--space-4);
  z-index: 1000;
  background: var(--color-brand);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  font-size: var(--fs-300);
  transition: top var(--dur-fast) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-4);
}