/* Precision Lab: compact language control beside the main navigation. */
.nav { gap: 20px; }
@media (min-width: 901px) { .nav > .nav-links { margin-left: auto; } }
.language-switch { position: relative; flex: 0 0 auto; padding-left: 20px; border-left: 1px solid rgba(196,211,234,.24); }
.language-switch__trigger {
  display: flex; align-items: center; gap: 9px; min-height: 40px; padding: 7px 10px;
  border: 1px solid transparent; border-radius: 8px; background: transparent; color: #eaf1fb;
  font: 600 .76rem var(--font-mono); letter-spacing: .04em; cursor: pointer;
  transition: background .2s, border-color .2s;
}
.language-switch__trigger:hover, .language-switch__trigger[aria-expanded="true"] { background: #12376c; border-color: rgba(77,194,230,.5); }
.language-switch img { object-fit: cover; border-radius: 3px; box-shadow: 0 0 0 1px rgba(255,255,255,.2); }
.language-switch__flag { width: 26px; height: 18px; }
.language-switch__chevron { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s; }
.language-switch__trigger[aria-expanded="true"] .language-switch__chevron { transform: rotate(180deg); }
.language-switch__menu {
  position: absolute; right: 0; top: calc(100% + 14px); z-index: 120; width: 255px; padding: 12px 8px 8px;
  border: 1px solid #e3e9f2; border-top: 2px solid #4dc2e6; border-radius: 12px;
  background: #fff; color: #0e2b54; box-shadow: 0 16px 40px rgba(14,43,84,.2);
  animation: language-menu-in .18s ease-out;
}
.language-switch__menu[hidden] { display: none; }
.language-switch__heading { padding: 0 12px 8px; color: #5b6473; font: 500 .65rem var(--font-mono); text-transform: uppercase; letter-spacing: .12em; }
.language-switch__option {
  display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px;
  border: 0; border-radius: 7px; background: transparent; color: #0e2b54; text-align: left; cursor: pointer;
  transition: background .15s;
}
.language-switch__option:hover, .language-switch__option[aria-checked="true"] { background: #f2f6ff; }
.language-switch__option > img { width: 30px; height: 21px; }
.language-switch__option strong { display: block; font: 600 .83rem var(--font); }
.language-switch__option small { display: block; margin-top: 3px; color: #5b6473; font: 400 .63rem var(--font-mono); }
.language-switch__check { margin-left: auto; width: 18px; height: 18px; stroke: #1c6dd0; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; opacity: 0; }
.language-switch__option[aria-checked="true"] .language-switch__check { opacity: 1; }
.language-switch button:focus-visible { outline: 2px solid #4dc2e6; outline-offset: 3px; }
@keyframes language-menu-in { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 900px) {
  .nav { gap: 12px; }
  .nav .logo img { width: clamp(150px, 40vw, 220px); }
  .nav .menu-toggle { margin-left: auto; }
  .language-switch { padding-left: 12px; }
}
@media (max-width: 480px) {
  .nav.container { padding-inline: 16px; }
  .nav { gap: 8px; }
  .language-switch { padding-left: 8px; }
  .language-switch__trigger { gap: 6px; padding-inline: 4px; }
  .language-switch__chevron { display: none; }
}
@media (prefers-reduced-motion: reduce) { .language-switch__menu { animation: none; } .language-switch * { transition: none; } }
/* Permit translated labels to wrap in technical layouts. */
html:not([lang="pt-BR"]) .btn { white-space: normal; text-align: center; }
html:not([lang="pt-BR"]) .ri-banner__mgp-description { font-size: clamp(24px, 2.5vw, 49px); }
html:not([lang="pt-BR"]) .ri-banner__osl-kicker { font-size: clamp(14px, 1.45vw, 28px); }
@media (max-width: 900px) { html:not([lang="pt-BR"]) .ri-banner__mgp-description { font-size: 25px; } }