/*
 * Avanteria base layer: reset, document defaults, typography, layout primitives, utilities.
 * Tokens come from tokens.css (generated). No colour literal may appear below this comment.
 */

@font-face { font-family: 'Poppins'; src: url('/fonts/poppins-300.woff2') format('woff2'); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: 'Poppins'; src: url('/fonts/poppins-400.woff2') format('woff2'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Poppins'; src: url('/fonts/poppins-500.woff2') format('woff2'); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: 'Poppins'; src: url('/fonts/poppins-600.woff2') format('woff2'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Poppins'; src: url('/fonts/poppins-700.woff2') format('woff2'); font-weight: 700; font-style: normal; font-display: swap; }

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6.5rem;
}

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol { margin: 0; }
ul[class], ol[class] { list-style: none; padding: 0; }
img, picture, svg, video { display: block; max-width: 100%; }
svg { flex: none; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
table { border-collapse: collapse; width: 100%; }
:target { scroll-margin-top: 7rem; }

/* ---------- Document ---------- */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-slate900);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

html, body { max-width: 100%; }

h1, h2, h3, h4 {
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-navy);
  text-wrap: balance;
}

h1 { font-size: var(--text-5xl); letter-spacing: var(--tracking-tighter); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-2xl); line-height: var(--leading-snug); }
h4 { font-size: var(--text-lg); line-height: var(--leading-snug); }

p { text-wrap: pretty; }

a { color: var(--color-blue-deep); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--color-blue); }
strong { font-weight: var(--weight-semibold); }

/* ---------- Focus ---------- */
:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: var(--z-skip-link);
  transform: translateY(-200%);
  padding: var(--space-3) var(--space-5);
  background: var(--color-navy);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-standard);
}
.skip-link:focus { transform: translateY(0); color: var(--color-white); }

/* ---------- Screen reader ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.sr-only-focusable:focus, .sr-only-focusable:active {
  position: static; width: auto; height: auto; margin: 0;
  overflow: visible; clip: auto; white-space: normal;
}

/* =========================================================================
   DARK SURFACE CONTRACT
   =========================================================================
   Any element placed on a dark background carries `.on-dark`. Section wrappers
   also carry `.section--dark`, but standalone panels (interior page heroes,
   CTA banners, mega-menu featured panels) do not, so every dark-mode colour
   rule keys off BOTH selectors.

   This is deliberate and load-bearing: an earlier build keyed only off
   `.section--dark`, which left interior hero h1 elements navy-on-navy and
   breadcrumbs invisible. Every rule below therefore lists both selectors.
   ========================================================================= */

.on-dark,
.section--dark {
  color: var(--color-slate200);
}

.on-dark h1, .on-dark h2, .on-dark h3, .on-dark h4, .on-dark h5, .on-dark h6,
.section--dark h1, .section--dark h2, .section--dark h3,
.section--dark h4, .section--dark h5, .section--dark h6 {
  color: var(--color-white);
}

.on-dark p,
.section--dark p {
  color: var(--color-slate200);
}

.on-dark a:not(.btn):not(.brand):not(.tag):not(.filter-chip),
.section--dark a:not(.btn):not(.brand):not(.tag):not(.filter-chip) {
  color: var(--color-aqua);
}

.on-dark a:not(.btn):hover,
.section--dark a:not(.btn):hover {
  color: var(--color-white);
}

.on-dark :focus-visible,
.section--dark :focus-visible {
  outline-color: var(--color-aqua);
}

.on-dark .muted, .on-dark .lead,
.section--dark .muted, .section--dark .lead {
  color: var(--color-slate300);
}

.on-dark .eyebrow,
.section--dark .eyebrow {
  color: var(--color-aqua);
}

/* Anything inside a dark surface that would otherwise inherit light-mode text. */
.on-dark li, .on-dark dt, .on-dark dd, .on-dark span, .on-dark strong, .on-dark figcaption,
.section--dark li, .section--dark dt, .section--dark dd, .section--dark figcaption {
  color: inherit;
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: var(--container-base);
  margin-inline: auto;
  padding-inline: var(--container-gutter);
}
.container--wide { max-width: var(--container-wide); }
.container--full { max-width: var(--container-full); }
.container--prose { max-width: var(--container-prose); }
.container--narrow { max-width: var(--container-narrow); }

.section { position: relative; padding-block: var(--section-md); }
.section--lg { padding-block: var(--section-lg); }
.section--sm { padding-block: var(--section-sm); }
.section--surface { background: var(--color-surface); }
.section--surface-gradient { background: var(--gradient-surface); }
.section--dark { background: var(--gradient-dark); isolation: isolate; }

.section--curve-bottom {
  border-end-start-radius: var(--radius-hero);
  border-end-end-radius: var(--radius-hero);
}

.stack > * + * { margin-block-start: var(--space-4); }
.stack-6 > * + * { margin-block-start: var(--space-6); }
.stack-8 > * + * { margin-block-start: var(--space-8); }

.grid { display: grid; gap: var(--space-6); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); }

.split { display: grid; gap: clamp(var(--space-8), 5vw, var(--space-16)); align-items: center; }

@media (min-width: 62rem) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .split--wide-start { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); }
  .split--wide-end { grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); }
  .split--sidebar { grid-template-columns: minmax(0, 1fr) minmax(0, 19rem); align-items: start; }
  .split--toc { grid-template-columns: minmax(0, 17rem) minmax(0, 1fr); align-items: start; }
}

.cluster { display: flex; flex-wrap: wrap; gap: var(--space-3); align-items: center; }
.cluster--tight { gap: var(--space-2); }

/* ---------- Section headings ---------- */
.section-head {
  max-width: 56ch;
  margin-block-end: clamp(var(--space-8), 4vw, var(--space-12));
}
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--wide { max-width: 72ch; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-blue-deep);
  margin-block-end: var(--space-3);
}

.eyebrow::before {
  content: '';
  inline-size: 1.75rem;
  block-size: 2px;
  border-radius: var(--radius-pill);
  background: var(--gradient-blue-teal);
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-slate700);
  max-width: 68ch;
}

.muted { color: var(--color-slate600); }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.no-wrap { white-space: nowrap; }
.mt-0 { margin-block-start: 0; }
.mt-6 { margin-block-start: var(--space-6); }
.mt-8 { margin-block-start: var(--space-8); }
.mt-10 { margin-block-start: var(--space-10); }
.mt-12 { margin-block-start: var(--space-12); }

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .announcement, .cookie-panel, .to-top { display: none !important; }
  body { color: #000; background: #fff; }
  a::after { content: ' (' attr(href) ')'; font-size: 0.8em; }
}