/* Base reset and typography */

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

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

body {
  margin: 0;
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-4);
  color: var(--color-navy);
  font-weight: 700;
  line-height: var(--line-height-heading);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

p {
  margin: 0 0 var(--space-4);
}

ul, ol {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-5);
}

a {
  color: var(--color-navy-soft);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--color-navy);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th, td {
  border: 1px solid var(--color-border);
  padding: var(--space-3);
  text-align: left;
  vertical-align: top;
}

th {
  background-color: var(--color-surface-tint);
}

/* Keyboard focus must always be visible */
:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 2px;
}

:focus:not(:focus-visible) {
  outline: none;
}

/* Utility */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.screen-reader-text {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-navy);
  color: var(--color-surface-raised);
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-3);
}

@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;
  }
}