/* ==========================================================================
   BASE: Reset, Document Defaults, Grid System, Accessibility Utilities
   ========================================================================== */

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  background-color: var(--color-bg);
  color: var(--color-text);
  overflow-x: clip;
}

html.is-programmatic-scroll {
  scroll-behavior: auto;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.is-scroll-locked {
  overflow: hidden;
}

/* Typography Hierarchy */
h1,
h2,
h3,
h4,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

h1,
h2,
h3,
h4 {
  color: var(--color-text);
  text-wrap: balance;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

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

/* Always render phone numbers & numeric codes LTR even in RTL context */
.ltr-digits {
  direction: ltr;
  unicode-bidi: isolate;
  display: inline-block;
}

.tabular-nums {
  font-variant-numeric: tabular-nums;
}

/* Focus Accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent-text);
  outline-offset: 3px;
}

/* Skip Link */
.skip-link {
  position: fixed;
  inset-block-start: -100%;
  inset-inline-start: var(--space-2);
  z-index: var(--z-splash);
  min-height: var(--touch-min);
  padding-inline: var(--space-3);
  display: inline-flex;
  align-items: center;
  background-color: var(--color-navy);
  color: #FFFFFF;
  border-radius: var(--radius-sm);
  font-weight: var(--weight-semibold);
  font-size: var(--text-small);
}

.skip-link:focus {
  inset-block-start: var(--space-2);
}

/* Screen Reader Only */
.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;
}

/* Layout Containers & 12-Column Grid */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--grid-gap);
}

/* Section Rhythm */
.section {
  padding-block: var(--space-8);
  position: relative;
}

@media (min-width: 768px) {
  .section {
    padding-block: var(--space-12);
  }
}

.section--surface {
  background-color: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

.section__header {
  margin-block-end: var(--space-5);
  max-width: 40rem;
}

.section__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  color: var(--color-accent-text);
  margin-block-end: var(--space-1);
}

.section__eyebrow::before {
  content: "";
  display: inline-block;
  width: 1.25rem;
  height: 1.5px;
  background-color: var(--color-brass);
}

.section__title {
  font-size: var(--text-section);
  font-weight: var(--weight-bold);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-tight);
  margin-block-end: 0.75rem;
}

.section__lead {
  font-size: var(--text-body);
  color: var(--color-text-muted);
  max-width: 36rem;
}

/* Scroll Margin for Sticky Header Anchor Links */
[id] {
  scroll-margin-top: calc(var(--header-height) + var(--space-2));
}

/* Utility Visibility Flag for Chrome Extras */
.is-hidden {
  opacity: 0 !important;
  pointer-events: none !important;
  visibility: hidden !important;
}

/* Inline SVG Icon Standard */
.icon {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
}

/* Bottom Mobile Bar Clearance */
@media (max-width: 767px) {
  body {
    padding-block-end: var(--mobile-bar-height);
  }
}