@charset "UTF-8";
/* ==========================================================================
   Main Stylesheet
   ========================================================================== */
/* ==========================================================================
   Accessibility Utilities
   ========================================================================== */
/*
 * Screen reader only: Visually hidden but accessible to screen readers.
 * Used for skip links and semantic headings that don't need visual display.
 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0; }

/*
 * Skip link: Hidden until keyboard focus.
 * Appears at top of page when user tabs for accessibility.
 */
.sr-only-focusable:focus,
.sr-only-focusable:active {
  position: static;
  width: auto;
  height: auto;
  overflow: visible;
  clip: auto;
  white-space: normal; }

/* ==========================================================================
   Design Tokens - Typography
   ========================================================================== */
/* ==========================================================================
   Base Typography
   ========================================================================== */
/*
 * Fluid base font size with fallback for legacy browsers
 */
/* Fallback: Fixed 18px for browsers without clamp() support (IE11, old Android) */
:root {
  font-size: 1.125rem; }

/* Modern browsers: Fluid sizing 18px → 20px based on viewport */
@supports (font-size: clamp(1rem, 1vw, 2rem)) {
  :root {
    font-size: clamp(1.125rem, 1.05rem + 0.25vw, 1.25rem); } }

body {
  font-family: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale; }

/* Type scale - sizes and line heights calculated from config */
h1 {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
  margin-top: 0;
  margin-bottom: 0.75em; }

h2 {
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 2em;
  margin-bottom: 0.75em; }

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 2em;
  margin-bottom: 0.75em; }

h4 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 1.5em;
  margin-bottom: 0.75em; }

p {
  margin: 0 0 1.5em; }

/* Code and monospace */
code,
kbd,
samp,
pre {
  font-family: "IBM Plex Mono", Consolas, "Courier New", monospace; }

code {
  font-size: 0.9em; }

pre {
  font-size: 0.875rem;
  line-height: 1.5;
  overflow-x: auto; }

/* Lists */
ul, ol {
  margin: 0 0 1.5em;
  padding-left: 1.5em; }

li {
  margin-bottom: 0.5em; }

li:last-child {
  margin-bottom: 0; }

/* Tables */
table {
  font-size: 1rem;
  line-height: 1.5; }

th {
  font-weight: 600; }

/* Small text */
small,
.text-small {
  font-size: 0.875rem;
  line-height: 1.5; }

/* ==========================================================================
   Design Tokens - Typography
   ========================================================================== */
/* ==========================================================================
   Layout
   ========================================================================== */
/*
 * Constrain line length to 68 characters for optimal readability.
 * Uses ch units so the constraint scales with font size.
 */
main {
  max-width: 68ch;
  margin: 0 auto;
  padding: 0 1.5rem; }

footer {
  max-width: 68ch;
  margin: 2em auto 0;
  padding: 0 1.5rem;
  border-top: 1px solid #e5e5e5;
  padding-top: 1em; }

/* ==========================================================================
   Design Tokens - Typography
   ========================================================================== */
/* ==========================================================================
   Site Header
   ========================================================================== */
/*
 * Use body > header to target only the site header, not article headers
 */
body > header {
  max-width: 68ch;
  margin: 0 auto 2em;
  padding: 0 1.5rem; }

/* Site branding - H1 on homepage, styled link on other pages */
body > header h1,
body > header p {
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 1em; }

body > header h1 a,
body > header p a {
  text-decoration: none;
  color: inherit; }

/* Navigation */
body > header nav {
  border-top: 1px solid #e5e5e5;
  border-bottom: 1px solid #e5e5e5;
  padding: 1em 0;
  margin-bottom: 1.5em; }

body > header nav ul {
  margin: 0;
  padding: 0;
  list-style: none; }

body > header nav li {
  display: inline-block;
  margin-right: 1.5em;
  margin-bottom: 0; }

/* ==========================================================================
   Design Tokens - Typography
   ========================================================================== */
/* ==========================================================================
   Article Layout
   ========================================================================== */
/*
 * Article header: Just the title, no extra styling
 * Content comes immediately after title so readers can start reading
 */
article > header {
  margin-bottom: 1.5em; }

article > header h1 {
  margin-bottom: 0; }

/*
 * Article footer: Metadata relegated to end and visually de-emphasized
 * Much smaller, lighter color, significant separation from content
 */
article > footer {
  margin-top: calc($spacing-loose * 2);
  padding-top: 2em;
  border-top: 1px solid #e5e5e5;
  font-size: 0.8125rem;
  color: #737373; }

article > footer p {
  margin: 0 0 1.5em; }

article > footer time {
  font-size: 0.75rem;
  color: #a3a3a3; }

article > footer h2 {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #a3a3a3;
  margin: 2em 0 0.5em; }

article > footer nav ul {
  margin: 0;
  padding: 0;
  list-style: none; }

article > footer nav li {
  display: inline-block;
  margin-right: 1em;
  margin-bottom: 0.5em; }

article > footer a {
  color: #737373;
  font-size: 0.8125rem; }