/* Reset and element defaults. */

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

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Anchor targets clear the sticky masthead. */
  scroll-padding-top: 6rem;
}

body {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Colour is the one thing that animates on every mood change. */
  transition:
    background-color var(--duration-slow) var(--ease-out),
    color var(--duration-slow) var(--ease-out);
}

/* A soft wash of the mood's accent behind the hero, and nothing else. */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: 60vh;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(70% 55% at 15% 0%, var(--glow), transparent 70%),
    radial-gradient(50% 45% at 85% 5%, var(--glow), transparent 70%);
  opacity: 0.85;
  transition: background var(--duration-slow) var(--ease-out);
}

main {
  flex: 1;
  width: min(var(--shell-width), 100%);
  margin-inline: auto;
  padding-inline: var(--shell-gutter);
}

h1,
h2,
h3 {
  font-weight: 640;
  line-height: 1.1;
  letter-spacing: -0.022em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

a {
  /* --accent is a fill colour; links use the AA-contrast text variant. */
  color: var(--accent-text);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--accent-text-hover);
}

/* One consistent focus ring, only for keyboard users. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

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

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

/* Native search field chrome fights the custom clear button. */
input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button,
input[type="search"]::-webkit-search-results-button {
  appearance: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--duration-fast) var(--ease-out);
}

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

.noscript {
  margin: var(--space-6) auto;
  padding: var(--space-4);
  max-width: 40rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  text-align: center;
}

@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;
  }
}