@layer layout {
  .wrap { inline-size: min(100% - 2 * var(--s-5), var(--wrap)); margin-inline: auto; }
  .narrow { max-inline-size: var(--wrap-narrow); }
  .wrap.narrow { inline-size: min(100% - 2 * var(--s-5), var(--wrap-narrow)); }

  .section { padding-block: var(--s-8); }
  .section-alt { background: var(--bg-alt); }
  .section-head { max-inline-size: 44rem; margin-block-end: var(--s-6); }
  .section-head .lead { margin-block-start: var(--s-3); }

  .grid-3 { display: grid; gap: var(--s-5); grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
  .two-col { display: grid; gap: var(--s-7); grid-template-columns: 1fr; align-items: start; }
  @media (min-width: 52rem) { .two-col { grid-template-columns: 3fr 2fr; } }

  /* Header */
  .announce { background: var(--navy-700); color: var(--on-navy); text-align: center; font-size: var(--fs-sm); padding: var(--s-2) var(--s-4); }
  .announce a { color: var(--accent-bright); font-weight: 600; margin-inline-start: var(--s-2); }
  .site-header {
    position: sticky; inset-block-start: 0; z-index: 50;
    background: rgb(11 19 36 / 0.94); backdrop-filter: saturate(160%) blur(14px);
    border-block-end: 1px solid rgb(255 255 255 / 0.08); color: var(--on-navy);
  }
  .header-row { display: flex; align-items: center; justify-content: space-between; min-block-size: var(--header-h); gap: var(--s-4); }
  .brand { display: inline-flex; align-items: center; gap: var(--s-2); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: var(--fs-lg); text-decoration: none; }
  .brand:hover { color: #fff; }

  .primary-nav { display: flex; align-items: center; gap: var(--s-5); }
  .primary-nav > ul { display: flex; align-items: center; gap: var(--s-1); list-style: none; padding: 0; }
  .primary-nav > ul > li { position: relative; display: flex; align-items: center; }
  .primary-nav a { color: var(--on-navy-2); text-decoration: none; padding: var(--s-2) var(--s-3); border-radius: var(--r-sm); font-size: 0.95rem; }
  .primary-nav a:hover, .primary-nav a:focus-visible { color: #fff; background: rgb(255 255 255 / 0.08); }
  .nav-chevron, .theme-toggle, .menu-toggle {
    display: inline-grid; place-items: center; background: transparent; border: 0; color: var(--on-navy-2);
    inline-size: 2rem; block-size: 2rem; border-radius: var(--r-sm); cursor: pointer;
  }
  .nav-chevron:hover, .theme-toggle:hover, .menu-toggle:hover { color: #fff; background: rgb(255 255 255 / 0.08); }
  .nav-chevron[aria-expanded="true"] .icon { transform: rotate(180deg); }
  .menu-toggle { display: none; }
  .theme-toggle .icon-moon { display: none; }
  :root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
  :root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
  @media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
    :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: block; }
  }
  .nav-actions { display: flex; align-items: center; gap: var(--s-2); }

  .mega {
    position: absolute; inset-block-start: calc(100% + 0.25rem); inset-inline-start: 0; min-inline-size: 22rem;
    background: var(--navy-800); border: 1px solid rgb(255 255 255 / 0.1); border-radius: var(--r-lg); padding: var(--s-3);
    box-shadow: var(--shadow-lg); display: none;
  }
  .mega.is-open { display: block; }
  .mega ul { list-style: none; padding: 0; display: grid; gap: var(--s-1); }
  .mega a { display: flex; gap: var(--s-3); align-items: flex-start; padding: var(--s-3); }
  .mega a strong { display: block; color: #fff; font-weight: 600; }
  .mega a small { display: block; color: var(--on-navy-2); font-size: var(--fs-sm); }
  .mega .icon { margin-block-start: 0.15rem; color: var(--accent-bright); }

  @media (max-width: 62rem) {
    .menu-toggle { display: inline-grid; }
    .primary-nav {
      display: none; position: absolute; inset-inline: 0; inset-block-start: 100%; background: var(--navy-900);
      flex-direction: column; align-items: stretch; padding: var(--s-4) var(--s-5) var(--s-6);
      border-block-end: 1px solid rgb(255 255 255 / 0.1); max-block-size: calc(100vh - var(--header-h)); overflow-y: auto;
    }
    .primary-nav.is-open { display: flex; }
    .primary-nav > ul { flex-direction: column; align-items: stretch; }
    .primary-nav > ul > li { flex-wrap: wrap; justify-content: space-between; }
    .primary-nav > ul > li > a { flex: 1; }
    .mega { position: static; inline-size: 100%; min-inline-size: 0; box-shadow: none; flex-basis: 100%; margin-block: var(--s-1); }
    .nav-actions { justify-content: space-between; padding-block-start: var(--s-3); }
  }

  /* Footer */
  .site-footer { --muted-color: var(--on-navy-2); background: var(--navy-950); color: var(--on-navy-2); padding-block: var(--s-8) var(--s-5); margin-block-start: 0; }
  .site-footer a { color: var(--on-navy-2); text-decoration: none; }
  .site-footer a:hover { color: #fff; text-decoration: underline; }

  .footer-top { display: grid; gap: var(--s-7); grid-template-columns: 1fr; }
  @media (min-width: 60rem) { .footer-top { grid-template-columns: 2fr 3fr; } }
  .footer-about { display: grid; gap: var(--s-3); align-content: start; max-inline-size: 26rem; }
  .footer-news-title { font-size: var(--fs-base); color: #fff; font-family: var(--font-body); letter-spacing: 0; margin-block-start: var(--s-3); }
  .footer-cols { display: grid; gap: var(--s-5); grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); }
  .footer-cols h2 { font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: 0.08em; color: #fff; font-family: var(--font-body); font-weight: 600; margin-block-end: var(--s-3); }
  .footer-cols ul, .footer-legal { list-style: none; padding: 0; display: grid; gap: var(--s-2); }
  .footer-bottom { display: flex; flex-wrap: wrap; gap: var(--s-4); justify-content: space-between; border-block-start: 1px solid rgb(255 255 255 / 0.1); margin-block-start: var(--s-7); padding-block-start: var(--s-5); font-size: var(--fs-sm); }
  .footer-legal { display: flex; flex-wrap: wrap; gap: var(--s-4); }
  .link-button { background: none; border: 0; padding: 0; color: var(--on-navy-2); cursor: pointer; text-decoration: none; font: inherit; }
  .link-button:hover { color: #fff; text-decoration: underline; }

  .crumbs { padding-block: var(--s-4) 0; font-size: var(--fs-sm); color: var(--text-2); }
  .crumbs a { color: var(--text-2); }
}