:root {
  color-scheme: light;

  /* Brand and semantic colours. */
  --tpg-color-primary: #183569;
  --tpg-color-primary-hover: #10264d;
  --tpg-color-primary-soft: #eef2f8;
  --tpg-color-page-canvas: #efefef;
  --tpg-color-background: #ffffff;
  --tpg-color-surface: #f4f6f9;
  --tpg-color-surface-raised: #ffffff;
  --tpg-color-text: #252b36;
  --tpg-color-text-muted: #5b6474;
  --tpg-color-border: #d9dee8;
  --tpg-color-link: var(--tpg-color-primary);
  --tpg-color-link-hover: var(--tpg-color-primary-hover);
  --tpg-color-accent: var(--tpg-color-primary);
  --tpg-color-on-accent: #ffffff;
  --tpg-color-focus: #335da8;

  /* Typography follows the previous theme without requiring a font library. */
  --tpg-font-body: "Open Sans", Arial, sans-serif;
  --tpg-font-heading: "Raleway", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --tpg-font-size-sm: 0.875rem;
  --tpg-font-size-base: 0.875rem;
  --tpg-font-size-lg: 1.125rem;
  --tpg-line-height: 1.8;

  /* Reusable spacing, shape and elevation. */
  --tpg-space-1: 0.25rem;
  --tpg-space-2: 0.5rem;
  --tpg-space-3: 0.75rem;
  --tpg-space-4: 1rem;
  --tpg-space-5: 1.5rem;
  --tpg-space-6: 2rem;
  --tpg-space-7: 3rem;
  --tpg-space-8: 4rem;
  --tpg-radius-sm: 0.25rem;
  --tpg-radius-md: 0.5rem;
  --tpg-radius-lg: 0.875rem;
  --tpg-shadow-sm: 0 0.125rem 0.5rem rgba(17, 24, 39, 0.08);
  --tpg-shadow-raised: 0 0.5rem 1.25rem rgba(17, 24, 39, 0.12);
  --tpg-transition-fast: 160ms ease;
}

html {
  background: var(--tpg-color-page-canvas);
  font-size: 100%;
  text-size-adjust: 100%;
}

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

.site {
  background: var(--tpg-color-background);
  -webkit-box-shadow: 0 5px 5px rgba(0, 0, 0, 0.15);
  box-shadow: 0 5px 5px rgba(0, 0, 0, 0.15);
  color: var(--tpg-color-text);
  display: flex;
  min-height: 100vh;
  min-height: 100svh;
  flex-direction: column;
}

.main-content {
  flex: 1 0 auto;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--tpg-color-text);
  font-family: var(--tpg-font-heading);
  font-weight: 700;
  letter-spacing: 0.0625rem;
  line-height: 1.4;
  margin-block: 0.78125rem;
  text-transform: capitalize;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.75rem;
}

h3 {
  font-size: 1.5rem;
}

h4 {
  font-size: 1.25rem;
}

h5 {
  font-size: 1rem;
}

h6 {
  font-size: 0.75rem;
}

p {
  margin: 0;
}

ul,
ol,
dl,
blockquote {
  margin-block: 0 1em;
}

a {
  color: var(--tpg-color-link);
  text-decoration-thickness: 0.0625em;
  text-underline-offset: 0.16em;
  transition: color var(--tpg-transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--tpg-color-link-hover);
}

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

hr {
  border: 0;
  border-block-start: 0.0625rem solid var(--tpg-color-border);
  margin-block: var(--tpg-space-6);
}

::selection {
  background: var(--tpg-color-primary);
  color: #ffffff;
}

:focus-visible {
  outline: 0.125rem solid var(--tpg-color-focus);
  outline-offset: 0.1875rem;
}

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