/* Reset, document defaults and browser surfaces. */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + var(--space-4));
  scrollbar-color: var(--impak-line) var(--impak-bg-deep);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--impak-paper);
  color: var(--impak-ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* the app's soft green light from the top */
  background-image: radial-gradient(1200px 520px at 15% -10%, rgb(123 220 111 / 0.08), transparent 60%);
}

img, svg, video { display: block; max-width: 100%; }
figure { margin: 0; }
img, video { height: auto; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: var(--leading-snug);
  text-wrap: balance;
  color: var(--impak-heading);
}
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; }

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
}

::selection { background: var(--impak-accent); color: var(--impak-accent-ink); }

:focus-visible {
  outline: 2px solid var(--impak-accent-deep);
  outline-offset: 3px;
  border-radius: var(--radius-s);
}
.on-dark :focus-visible,
.on-dark:focus-visible { outline-color: var(--impak-accent); }

/* Data face: amounts, hectares, dates, record fields. Never headings or body. */
.data {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

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

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -10rem;
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--impak-strong);
  color: var(--impak-strong-ink);
  font-weight: 600;
  border-radius: var(--radius);
}
.skip-link:focus { top: var(--space-3); }

.wrap {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.icon { width: 1em; height: 1em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* Scroll reveal (reveal.js). Only active under .motion, which the <head> script sets when motion is allowed. */
.motion [data-reveal] {
  opacity: 0;
  transform: translateY(1.75rem);
  transition: opacity 700ms var(--ease-out), transform 900ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.motion [data-reveal].is-in { opacity: 1; transform: none; }