.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  border-bottom: 1px solid transparent;
  background: rgba(247, 247, 244, 0.98);
  color: var(--indusaf-text);
  transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
}

.site-header.is-scrolled {
  border-bottom-color: rgba(255, 255, 255, 0.12);
  background: var(--indusaf-navy-dark);
  color: var(--indusaf-surface);
}

.site-header--overlay {
  position: fixed;
  right: 0;
  left: 0;
  border-bottom-color: rgba(255, 255, 255, 0.14);
  background: transparent;
  color: var(--indusaf-surface);
}

.site-header--overlay .brand--header {
  background: var(--indusaf-surface);
}

.site-header--overlay .primary-nav__link::after {
  background: var(--indusaf-blue-light);
}

.site-header--overlay .primary-nav__link:hover,
.site-header--overlay .primary-nav__link:focus-visible {
  color: var(--indusaf-blue-light);
}

.site-header--overlay .primary-nav__cta {
  border-color: var(--indusaf-surface);
  background: var(--indusaf-surface);
  color: var(--indusaf-navy-dark);
}

.site-header--overlay .primary-nav__cta:hover,
.site-header--overlay .primary-nav__cta:focus-visible {
  border-color: var(--indusaf-green-light);
  background: var(--indusaf-green-light);
  color: var(--indusaf-navy-dark);
}

.site-header--overlay.menu-is-open .primary-nav__cta {
  border-color: var(--indusaf-navy);
  background: var(--indusaf-navy);
  color: var(--indusaf-surface);
}

.site-header--overlay.menu-is-open .primary-nav__cta:hover,
.site-header--overlay.menu-is-open .primary-nav__cta:focus-visible {
  border-color: var(--indusaf-green-dark);
  background: var(--indusaf-green-dark);
  color: var(--indusaf-surface);
}

.site-header__inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(1rem, 2vw, 2rem);
}

.brand {
  flex: 0 0 auto;
}

.brand--header {
  width: 5.5rem;
  height: 5.5rem;
  display: grid;
  place-items: center;
  transition: background-color var(--transition-base);
}

.brand__logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-header.is-scrolled .brand--header,
.site-header.menu-is-open .brand--header {
  background: var(--indusaf-surface);
}

.primary-nav,
.primary-nav__list,
.button-group {
  display: flex;
  align-items: center;
}

.primary-nav {
  min-width: 0;
  gap: clamp(1rem, 1.7vw, 1.75rem);
}

.primary-nav__list {
  min-width: 0;
  gap: clamp(0.75rem, 1.25vw, 1.35rem);
}

.primary-nav__link {
  position: relative;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: currentColor;
  font-size: var(--text-sm);
  font-weight: 650;
  letter-spacing: 0.005em;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.primary-nav__link::after {
  position: absolute;
  right: 0;
  bottom: 0.35rem;
  left: 0;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  background: var(--indusaf-blue);
  content: "";
  transition: transform var(--transition-fast);
}

.primary-nav__link:hover,
.primary-nav__link:focus-visible {
  color: var(--indusaf-blue);
}

.primary-nav__link:hover::after,
.primary-nav__link:focus-visible::after,
.primary-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

.primary-nav__link[aria-current="page"]::after,
.site-header--overlay .primary-nav__link[aria-current="page"]::after,
.site-header.is-scrolled .primary-nav__link[aria-current="page"]::after {
  height: 2px;
  background: var(--indusaf-green);
}

.primary-nav__link[aria-current="page"] {
  color: var(--indusaf-blue-light);
  font-weight: 750;
}

.site-header.is-scrolled .primary-nav__link:hover,
.site-header.is-scrolled .primary-nav__link:focus-visible {
  color: var(--indusaf-blue-light);
}

.site-header.is-scrolled .primary-nav__link::after {
  background: var(--indusaf-blue-light);
}

.nav-toggle {
  min-width: 3rem;
  min-height: 3rem;
  display: none;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-2);
  background: transparent;
  color: currentColor;
  cursor: pointer;
}

.nav-toggle__label {
  font-size: var(--text-sm);
  font-weight: 700;
}

.nav-toggle__icon {
  width: 1.5rem;
  display: grid;
  gap: 0.4rem;
}

.nav-toggle__icon span {
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition-base);
}

.button {
  min-height: 3rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.4rem;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.button:hover {
  transform: translateY(-1px);
}

.button--small {
  min-height: 2.75rem;
  padding-inline: clamp(0.9rem, 1.4vw, 1.3rem);
  font-size: var(--text-sm);
  white-space: nowrap;
}

.button--primary {
  background: var(--indusaf-navy);
  color: var(--indusaf-surface);
}

.button--primary:hover {
  background: var(--indusaf-blue);
}

.button--secondary {
  border-color: var(--indusaf-navy);
  background: transparent;
  color: var(--indusaf-navy);
}

.button--secondary:hover {
  border-color: var(--indusaf-blue);
  color: var(--indusaf-blue);
}

.site-header.is-scrolled .primary-nav__cta {
  border-color: var(--indusaf-surface);
  background: var(--indusaf-surface);
  color: var(--indusaf-navy-dark);
}

.site-header.is-scrolled .primary-nav__cta:hover {
  border-color: var(--indusaf-green-light);
  background: var(--indusaf-green-light);
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--indusaf-navy-dark);
  color: var(--text-on-dark-muted);
}

.site-footer__brand-row {
  display: grid;
  grid-template-columns: minmax(8rem, 0.6fr) minmax(20rem, 1.4fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 6rem);
  padding-block: clamp(4rem, 7vw, 7rem);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.brand--footer {
  width: 8rem;
  height: 8rem;
  display: grid;
  place-items: center;
  background: var(--indusaf-surface);
}

.site-footer__statement {
  max-width: 28ch;
  color: var(--indusaf-surface);
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 1.3rem + 1.4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.12;
  text-wrap: balance;
}

.site-footer__summary {
  display: grid;
  gap: var(--space-6);
}

.site-footer__contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) clamp(1.5rem, 4vw, 3rem);
  font-style: normal;
}

.site-footer__contact a {
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  color: var(--text-on-dark-muted);
  font-size: var(--text-sm);
  font-weight: 650;
  text-underline-offset: 0.24em;
}

.site-footer__contact a:hover,
.site-footer__contact a:focus-visible {
  color: var(--indusaf-green-light);
  text-decoration: underline;
}

.footer-sitemap {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(1.5rem, 3vw, 3.5rem);
  padding-block: clamp(3.5rem, 6vw, 6rem);
}

.footer-group h2 {
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--indusaf-surface);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.footer-group h2::before {
  width: 1.25rem;
  height: 2px;
  flex: 0 0 auto;
  background: var(--indusaf-green);
  content: "";
}

.footer-group ul {
  display: grid;
  gap: var(--space-3);
}

.footer-group a {
  display: inline-block;
  color: var(--text-on-dark-subtle);
  font-size: var(--text-sm);
  line-height: 1.45;
  transition: color var(--transition-fast);
}

.footer-group a:hover,
.footer-group a:focus-visible {
  color: var(--indusaf-green-light);
}

.site-footer__bottom {
  min-height: 5rem;
  display: flex;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  font-size: var(--text-xs);
}