/* ==========================================================================
   Base — reset, document defaults, shared typography primitives
   ========================================================================== */

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

* { margin: 0; }

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

body {
  background: var(--nn-bg);
  color: var(--nn-text);
  font-family: var(--nn-font-body);
  font-size: var(--nn-size-body);
  line-height: var(--nn-lh-body);
  letter-spacing: var(--nn-track-tight);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden; /* decorative art is deliberately bled off-canvas */
}

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

input, button, textarea, select { font: inherit; letter-spacing: inherit; }

button { cursor: pointer; }

a { color: inherit; }

:where(a, button, input, textarea, summary):focus-visible {
  outline: 3px solid var(--nn-accent);
  outline-offset: 3px;
}

/* Focus ring needs to be visible on the dark CTA panel too. */
.cta :where(a, button, input, textarea):focus-visible {
  outline-color: var(--nn-accent-alt);
}

/* --- Layout primitives --------------------------------------------------- */

.container {
  width: 100%;
  max-width: calc(var(--nn-container) + var(--nn-gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--nn-gutter);
}

.skip-link {
  position: absolute;
  left: var(--nn-gutter);
  top: 0;
  z-index: 100;
  transform: translateY(-120%);
  padding: 0.75rem 1.25rem;
  background: var(--nn-accent);
  color: var(--nn-accent-ink);
  font-family: var(--nn-font-display);
  font-variation-settings: "SEIS" var(--nn-seis), "wght" var(--nn-wght-bold);
  text-decoration: none;
  transition: transform var(--nn-transition);
}
.skip-link:focus { transform: translateY(0); }

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

/* --- Shared type primitives ---------------------------------------------- */

.section-heading {
  font-family: var(--nn-font-display);
  font-weight: 700;
  font-variation-settings: "SEIS" var(--nn-seis), "wght" var(--nn-wght-bold);
  font-size: var(--nn-size-section);
  line-height: var(--nn-lh-tight);
  letter-spacing: var(--nn-track-tight);
  text-wrap: balance;
}

.section-sub {
  font-size: var(--nn-size-lead);
  font-weight: 300;
  line-height: var(--nn-lh-tight);
  text-wrap: balance;
}

.prose > * + * { margin-block-start: 1em; }