:root {
  --ia-blue: #0645D8;
  --ia-blue-dark: #07328C;
  --ia-orange: #FF8508;
  --ia-text: #17233D;
  --ia-muted: #58657B;
  --ia-bg: #FFFFFF;
  --ia-alt: #F4F7FC;
  --ia-border: #DEE5F0;
  --ia-radius: 10px;
  --ia-shadow: 0 8px 24px rgba(7, 50, 140, 0.08);
  --ia-max: 1180px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ia-text);
  background: var(--ia-bg);
  font-family: Inter, system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.55;
}
h1, h2, h3, h4, .ia-nav a, .ia-footer-brand, .ia-kicker, .ia-eyebrow {
  font-family: Montserrat, Inter, sans-serif;
}
a { color: var(--ia-blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--ia-blue-dark); }
.ia-skip {
  position: absolute; left: -999px; top: 0; background: var(--ia-blue); color: #fff; padding: .5rem 1rem;
}
.ia-skip:focus { left: 1rem; top: 1rem; z-index: 20; }
.ia-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.ia-wrap { width: min(var(--ia-max), calc(100% - 2rem)); margin-inline: auto; }
.ia-header {
  background: #fff;
  border-bottom: 1px solid var(--ia-border);
  position: sticky; top: 0; z-index: 10;
}
.ia-header-inner {
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .7rem 0;
}
.ia-logo { display: flex; align-items: center; }
.ia-logo-plate {
  display: inline-flex; background: transparent; border-radius: 0; padding: 0;
}
.ia-logo img {
  display: block;
  width: auto;
  height: auto;
  max-height: 52px;
  max-width: min(22rem, 78vw);
}
.ia-nav { display: flex; flex-wrap: wrap; gap: .65rem 1rem; }
.ia-nav a { color: var(--ia-text); text-decoration: none; font-weight: 600; font-size: .92rem; }
.ia-nav a:hover, .ia-nav a:focus { color: var(--ia-blue); }
.ia-nav-toggle {
  display: none; margin-left: auto; background: var(--ia-blue); color: #fff; border: 0;
  border-radius: 8px; padding: .45rem .8rem; font-weight: 700;
}
.ia-search { display: flex; margin-left: auto; border: 1px solid var(--ia-border); border-radius: 999px; overflow: hidden; background: var(--ia-alt); }
.ia-search input { border: 0; background: transparent; padding: .45rem .8rem; min-width: 10rem; font: inherit; }
.ia-search button { border: 0; background: var(--ia-blue); color: #fff; padding: .45rem .9rem; font-weight: 700; cursor: pointer; }
.ia-search button:focus, .ia-btn:focus, .ia-share-btn:focus, a:focus-visible, button:focus-visible {
  outline: 3px solid var(--ia-orange); outline-offset: 2px;
}
.ia-hero-band {
  background: linear-gradient(120deg, #07328C 0%, #0645D8 62%, #0a3bb8 100%);
  color: #fff; padding: 2.4rem 0 2.6rem;
}
.ia-hero-band h1 { font-size: clamp(1.7rem, 4vw, 2.7rem); margin: .2rem 0 .6rem; letter-spacing: -0.02em; max-width: 18ch; }
.ia-hero-band .ia-lead { color: #dce6ff; max-width: 42rem; font-size: 1.15rem; }
.ia-eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: .72rem; color: var(--ia-orange); margin: 0; font-weight: 700; }
.ia-kicker { text-transform: uppercase; letter-spacing: .08em; font-size: .72rem; color: var(--ia-blue); font-weight: 700; margin: 0 0 .3rem; }
.ia-pagehead { padding: 2rem 0 1rem; }
.ia-pagehead h1 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin: 0 0 .4rem; }
.ia-lead { font-size: 1.15rem; color: var(--ia-muted); max-width: 42rem; }
.ia-home-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 1.2rem; padding: 1.6rem 0; }
.ia-feature {
  background: var(--ia-alt); border: 1px solid var(--ia-border); border-radius: var(--ia-radius);
  overflow: hidden; box-shadow: var(--ia-shadow);
}
.ia-feature img { width: 100%; height: 280px; object-fit: cover; display: block; }
.ia-feature > div { padding: 1.1rem 1.2rem 1.4rem; }
.ia-feature h2 { margin: 0 0 .4rem; font-size: 1.6rem; }
.ia-feature h2 a { color: inherit; text-decoration: none; }
.ia-feature .ia-prose { max-width: none; font-size: 1rem; }
.ia-feature .ia-prose img, .ia-feature .ia-prose video { max-width: 100%; height: auto; }
.ia-cards, .ia-stack { display: grid; gap: .9rem; }
.ia-cards { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.ia-cards-3 { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.ia-card {
  border: 1px solid var(--ia-border); border-radius: var(--ia-radius); background: #fff;
  box-shadow: 0 4px 14px rgba(7,50,140,.05); overflow: hidden; display: flex; flex-direction: column;
}
.ia-card-img img { width: 100%; height: 160px; object-fit: cover; display: block; }
.ia-card-body { padding: .9rem 1rem 1.1rem; }
.ia-card h2, .ia-card h3 { margin: 0 0 .35rem; font-size: 1.05rem; }
.ia-card h2 a, .ia-card h3 a { color: inherit; text-decoration: none; }
.ia-card p { margin: 0 0 .4rem; color: var(--ia-muted); font-size: .95rem; }
.ia-meta { color: var(--ia-muted); font-size: .85rem; }
.ia-section { padding: 1.4rem 0 2rem; }
.ia-section.ia-alt { background: var(--ia-alt); width: 100%; max-width: none; padding: 2rem 0; }
.ia-section.ia-alt .ia-section-h, .ia-section.ia-alt .ia-chips { width: min(var(--ia-max), calc(100% - 2rem)); margin-inline: auto; }
.ia-section-h { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.ia-chips { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.ia-chips a {
  display: inline-block; border: 1px solid var(--ia-border); border-radius: 999px; padding: .35rem .8rem;
  text-decoration: none; color: var(--ia-text); background: #fff; font-weight: 600; font-size: .9rem;
}
.ia-chips a:hover { border-color: var(--ia-blue); color: var(--ia-blue); }
.ia-chips-lg a { padding: .55rem 1rem; }
.ia-article-head { padding-top: 2rem; }
.ia-article-head h1 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); max-width: 22ch; margin: .2rem 0 .7rem; }
.ia-cover { margin: 1rem auto; }
.ia-cover img { width: 100%; max-height: 420px; object-fit: cover; object-position: center; border-radius: var(--ia-radius); display: block; }
.ia-cover.ia-sz-full img { max-height: 560px; }
.ia-cover.ia-sz-lg img { max-height: 480px; }
.ia-cover.ia-sz-md img { max-height: 420px; }
.ia-cover.ia-sz-sm img { max-height: 280px; }
.ia-cover.ia-sz-xs img { max-height: 180px; }
.ia-cover.ia-mask-natural img { object-fit: contain; background: var(--ia-alt); max-height: none; height: auto; }
.ia-cover.ia-mask-cover img { object-fit: cover; }
.ia-cover.ia-mask-16x9 img { aspect-ratio: 16/9; max-height: none; height: auto; object-fit: cover; }
.ia-cover.ia-mask-4x3 img { aspect-ratio: 4/3; max-height: none; height: auto; object-fit: cover; }
.ia-cover.ia-mask-1x1 img { aspect-ratio: 1; max-height: none; height: auto; object-fit: cover; }
.ia-cover.ia-mask-21x9 img { aspect-ratio: 21/9; max-height: none; height: auto; object-fit: cover; }
.ia-cover.ia-mask-round img { aspect-ratio: 1; max-height: 420px; width: min(100%, 420px); margin-inline: auto; object-fit: cover; border-radius: 50%; }
.ia-cover.ia-pos-top img { object-position: top; }
.ia-cover.ia-pos-bottom img { object-position: bottom; }
.ia-cover.ia-pos-left img { object-position: left; }
.ia-cover.ia-pos-right img { object-position: right; }
.ia-cover.ia-pos-center img { object-position: center; }
.ia-split { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 2rem; padding-bottom: 2rem; }
.ia-prose { font-size: 18px; line-height: 1.7; max-width: 42rem; }
.ia-prose h2 { font-size: 1.45rem; margin: 1.8rem 0 .6rem; }
.ia-prose h3 { font-size: 1.15rem; }
.ia-prose figure { margin: 1.2rem auto; max-width: 100%; }
.ia-prose figure img, .ia-prose figure video { max-width: 100%; height: auto; border-radius: 8px; display: block; width: 100%; }
.ia-prose .ia-fig.ia-sz-full, .ia-prose .ia-video.ia-sz-full { width: 100%; }
.ia-prose .ia-fig.ia-sz-lg, .ia-prose .ia-video.ia-sz-lg { width: 75%; }
.ia-prose .ia-fig.ia-sz-md, .ia-prose .ia-video.ia-sz-md { width: 50%; }
.ia-prose .ia-fig.ia-sz-sm, .ia-prose .ia-video.ia-sz-sm { width: 33%; }
.ia-prose .ia-fig.ia-sz-xs, .ia-prose .ia-video.ia-sz-xs { width: 25%; }
.ia-prose .ia-align-left { margin-left: 0; margin-right: auto; }
.ia-prose .ia-align-center { margin-left: auto; margin-right: auto; }
.ia-prose .ia-align-right { margin-left: auto; margin-right: 0; }
.ia-prose .ia-mask-natural img, .ia-prose .ia-mask-natural video { object-fit: contain; height: auto; }
.ia-prose .ia-mask-cover img, .ia-prose .ia-mask-cover video { object-fit: cover; }
.ia-prose .ia-mask-16x9 img, .ia-prose .ia-mask-16x9 video { aspect-ratio: 16/9; object-fit: cover; height: auto; }
.ia-prose .ia-mask-4x3 img, .ia-prose .ia-mask-4x3 video { aspect-ratio: 4/3; object-fit: cover; height: auto; }
.ia-prose .ia-mask-1x1 img, .ia-prose .ia-mask-1x1 video { aspect-ratio: 1; object-fit: cover; height: auto; }
.ia-prose .ia-mask-21x9 img, .ia-prose .ia-mask-21x9 video { aspect-ratio: 21/9; object-fit: cover; height: auto; }
.ia-prose .ia-mask-round img, .ia-prose .ia-mask-round video { aspect-ratio: 1; object-fit: cover; border-radius: 50%; height: auto; }
.ia-prose .ia-pos-top img, .ia-prose .ia-pos-top video { object-position: top; }
.ia-prose .ia-pos-bottom img, .ia-prose .ia-pos-bottom video { object-position: bottom; }
.ia-prose .ia-pos-left img, .ia-prose .ia-pos-left video { object-position: left; }
.ia-prose .ia-pos-right img, .ia-prose .ia-pos-right video { object-position: right; }
.ia-prose figcaption { color: var(--ia-muted); font-size: .9rem; margin-top: .4rem; }
.ia-prose table { width: 100%; border-collapse: collapse; }
.ia-prose th, .ia-prose td { border: 1px solid var(--ia-border); padding: .45rem .6rem; }
.ia-prose blockquote { border-left: 4px solid var(--ia-orange); margin: 1rem 0; padding: .2rem 1rem; color: var(--ia-muted); }
.ia-callout { background: var(--ia-alt); border: 1px solid var(--ia-border); border-radius: 8px; padding: .8rem 1rem; }
.ia-video iframe { width: 100%; aspect-ratio: 16/9; border: 0; border-radius: 8px; display: block; }
.ia-prose .ia-video.ia-mask-1x1 iframe { aspect-ratio: 1; }
.ia-prose .ia-video.ia-mask-4x3 iframe { aspect-ratio: 4/3; }
.ia-prose .ia-video.ia-mask-21x9 iframe { aspect-ratio: 21/9; }
.ia-aside { position: sticky; top: 5.5rem; align-self: start; }
.ia-toc { border: 1px solid var(--ia-border); border-radius: var(--ia-radius); padding: .8rem; background: var(--ia-alt); }
.ia-toc ul { list-style: none; padding: 0; margin: 0; }
.ia-toc li { margin: .5rem 0 1rem; }
.ia-share { display: flex; flex-wrap: wrap; gap: .35rem; margin: .6rem 0 1rem; }
.ia-share-btn {
  border: 1px solid var(--ia-border); background: #fff; border-radius: 999px; padding: .2rem .6rem;
  font-size: .75rem; text-transform: capitalize; color: var(--ia-text); text-decoration: none; cursor: pointer;
}
.ia-btn {
  display: inline-block; background: var(--ia-blue); color: #fff; text-decoration: none; font-weight: 700;
  border: 0; border-radius: 8px; padding: .55rem 1rem; cursor: pointer;
}
.ia-btn:hover { background: var(--ia-blue-dark); color: #fff; }
.ia-mexa { border: 1px solid var(--ia-border); border-left: 4px solid var(--ia-orange); border-radius: 8px; padding: 1rem; margin: 1.2rem 0; background: #fff; }
.ia-note, .ia-empty { color: var(--ia-muted); font-size: .92rem; }
.ia-badge { display: inline-block; background: var(--ia-alt); border-radius: 999px; padding: .2rem .7rem; font-size: .8rem; font-weight: 700; color: var(--ia-blue-dark); }
.ia-dl { display: grid; grid-template-columns: 10rem 1fr; gap: .4rem 1rem; }
.ia-dl dt { font-weight: 700; }
.ia-sources { padding-left: 1.1rem; }
.ia-faq-a { margin: .4rem 0 .2rem; }
.ia-faq-a a { color: var(--ia-blue); font-weight: 600; text-decoration: underline; }
.ia-footer { background: var(--ia-blue-dark); color: #d5def5; padding: 2rem 0 1rem; margin-top: 2rem; }
.ia-footer a { color: #fff; display: block; margin: .3rem 0; }
.ia-footer-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2rem; }
.ia-footer-brand { font-size: 1.2rem; color: #fff; font-weight: 800; }
.ia-copy { opacity: .7; font-size: .85rem; }
.ia-mexa-form { display: block; width: min(740px, calc(100% - 2rem)); min-height: 640px; margin: 0 auto 2rem; border: 0; background: #f6f4f1; }
.ia-form label { display: block; font-weight: 600; margin: .4rem 0; }
.ia-form input, .ia-form textarea {
  width: 100%; font: inherit; border: 1px solid var(--ia-border); border-radius: 8px; padding: .5rem .7rem;
}
.ia-hp { position: absolute; left: -9999px; }
.ia-notice { background: var(--ia-alt); border-left: 4px solid var(--ia-blue); padding: .7rem 1rem; }
.ia-pager { display: flex; gap: .4rem; padding: 1rem 0 2rem; }
.ia-pager a, .ia-pager span { border: 1px solid var(--ia-border); padding: .3rem .7rem; border-radius: 6px; text-decoration: none; }
.ia-empty-editorial { padding: 2rem; border: 1px dashed var(--ia-border); border-radius: var(--ia-radius); }
.ia-author-list, .ia-search-res { list-style: none; padding: 0 0 2rem; }
.ia-author-list li, .ia-search-res li { border-bottom: 1px solid var(--ia-border); padding: 1rem 0; }
@media (max-width: 900px) {
  .ia-home-grid, .ia-split, .ia-footer-grid { grid-template-columns: 1fr; }
  .ia-nav-toggle { display: inline-block; }
  .ia-nav { display: none; width: 100%; flex-direction: column; }
  .ia-nav.is-open { display: flex; }
  .ia-search { width: 100%; margin: 0; }
  .ia-dl { grid-template-columns: 1fr; }
  .ia-aside { position: static; }
}