/* Split navigation: native destination link plus explicit disclosure control. */
.site-header .nav-item {
  position: static;
  gap: 0;
}
.site-header .nav-link {
  position: relative;
  padding: 0;
  min-height: 48px;
  display: flex;
  align-items: center;
  white-space: nowrap;
  transition: color 0.18s ease;
}
.site-header .nav-link:after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.18s ease;
}
.site-header .nav-item.is-open .nav-link,
.site-header .nav-link.active {
  color: var(--green);
}
.site-header .nav-item.is-open .nav-link:after,
.site-header .nav-link.active:after {
  transform: scaleX(1);
}
.nav-toggle {
  width: 30px;
  height: 44px;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--muted);
  border-radius: 2px;
  flex: none;
}
.nav-toggle > svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  transition: transform 0.18s ease;
}
.nav-toggle[aria-expanded="true"] > svg {
  transform: rotate(180deg);
}
.site-header .nav-panel {
  border-top: 1px solid var(--line);
  box-shadow: 0 16px 24px #132e240a;
}
.site-header .nav-panel:not([hidden]) {
  animation: gnb-enter 0.16s ease-out;
}
.site-header.is-switching-menu .nav-panel:not([hidden]) {
  animation: none;
}
.site-header .mega-inner {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 56px;
  min-height: 300px;
  padding-block: 36px;
  align-items: start;
  max-height: calc(100svh - var(--header-height));
  overflow-y: auto;
}
.site-header .mega-inner.has-groups {
  grid-template-columns: 240px minmax(180px, 0.8fr) minmax(0, 1.6fr);
}
.site-header .mega-intro {
  border-right: 1px solid var(--line);
  padding-right: 32px;
  min-height: 200px;
}
.site-header .mega-intro > strong {
  display: block;
  font-size: 23px;
  font-weight: 550;
  line-height: 1.4;
  letter-spacing: -0.03em;
}
.site-header .mega-intro > p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
  margin-top: 14px;
}
.site-header .mega-intro .text-link {
  font-size: 15px;
  margin-top: 20px;
  gap: 10px;
}
.site-header .mega-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 32px;
  align-items: start;
  width: 100%;
}
.site-header .mega-group {
  display: block;
  width: 100%;
}
.site-header .mega-group > p {
  font-size: 14px;
  font-weight: 550;
  color: var(--muted);
  margin: 0 0 12px;
  padding-inline: 12px;
}
.mega-group-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}
.site-header .mega-group:last-child .mega-group-links {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 20px;
}
.site-header .mega-links > a,
.site-header .mega-group-links > a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 10px 12px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 500;
  letter-spacing: -0.02em;
  border-radius: 2px;
  transition:
    color 0.15s ease,
    background-color 0.15s ease;
  text-decoration: none;
}
.site-header .mega-links > a[aria-current="page"],
.site-header .mega-group-links > a[aria-current="page"] {
  color: var(--green);
  background: #edf3e9;
  font-weight: 650;
}
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: #172e2610;
}
.nav-backdrop:not([hidden]) {
  animation: gnb-backdrop 0.16s ease-out;
}
@keyframes gnb-enter {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes gnb-backdrop {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@media (hover: hover) and (pointer: fine) {
  .nav-toggle:hover {
    color: var(--green);
    background: transparent;
  }
  .site-header .mega-links > a:hover,
  .site-header .mega-group-links > a:hover {
    color: var(--green);
    background: #f2f6ef;
  }
  .site-header .mega-intro .text-link:hover {
    text-decoration: underline;
    text-underline-offset: 5px;
  }
}
@media (pointer: coarse) {
  .nav-toggle {
    width: 44px;
  }
}
@media (max-width: 1180px) and (min-width: 961px) {
  .site-header .primary-nav {
    gap: 20px;
  }
  .site-header .header-inner {
    gap: 26px;
  }
  .site-header .mega-inner {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 28px;
  }
  .site-header .mega-inner.has-groups {
    grid-template-columns: 200px minmax(150px, 0.8fr) minmax(0, 1.6fr);
  }
  .site-header .mega-intro {
    padding-right: 24px;
  }
  .site-header .mega-links {
    gap: 8px 20px;
  }
  .site-header .mega-links > a,
  .site-header .mega-group-links > a {
    font-size: 16px;
  }
  .site-header .mega-group:last-child .mega-group-links {
    column-gap: 10px;
  }
}
@media (max-width: 960px) {
  .site-header .mobile-nav {
    z-index: 1;
  }
  .mobile-nav summary {
    font-size: 19px;
  }
  .mobile-nav details > div > a {
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .mobile-nav a[aria-current="page"] {
    color: var(--green);
    font-weight: 650;
  }
  .mobile-nav details[open] > summary {
    color: var(--green);
  }
  .site-header .nav-panel {
    display: none !important;
  }
}
@media (prefers-reduced-motion: reduce) {
  .nav-link,
  .nav-link:after,
  .nav-toggle svg,
  .mega-links > a,
  .mega-group-links > a,
  .nav-panel,
  .nav-backdrop {
    transition: none !important;
    animation: none !important;
  }
}
@media (min-width: 961px) {
  .site-header .mega-inner {
    min-height: min(300px, calc(100svh - var(--header-height)));
  }
  .site-header.has-open-menu .nav-item:not(.is-open) .nav-link.active:after {
    transform: scaleX(0);
  }
}
.nav-toggle > .material-symbol {
  width: 18px;
  height: 18px;
  fill: currentColor;
  stroke: none;
}
@media (max-width: 960px) {
  .mobile-subgroup {
    padding-top: 12px;
  }
  .mobile-subgroup > p {
    font-size: 14px;
    font-weight: 550;
    color: var(--muted);
    padding-inline: 12px;
    margin-bottom: 8px;
  }
  .mobile-subgroup-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 4px 12px;
  }
  .mobile-subgroup-links > a {
    display: flex;
    align-items: center;
    min-height: 44px;
    padding: 10px 12px;
    font-size: 16px;
    line-height: 1.5;
  }
  .mobile-subgroup-links > a[aria-current="page"] {
    background: #edf3e9;
    border-radius: 2px;
  }
  .mobile-nav details > div > a {
    font-size: 16px;
  }
}
@media (max-width: 960px) {
  .mobile-subgroup-links > a {
    align-items: flex-start;
  }
}

/* A quiet corporate masthead, with readable destinations rather than a dense link sheet. */
.site-header .nav-direct {
  display: flex;
  align-items: center;
}
@media (max-width: 960px) {
  .site-header .mobile-nav > .mobile-direct-link {
    display: flex;
    align-items: center;
    min-height: 76px;
    padding: 22px 0;
    border-bottom: 1px solid #e0e7dd;
    font-size: 23px;
    line-height: 1.4;
    font-weight: 600;
    letter-spacing: -0.035em;
  }
}
.site-header {
  background: rgba(255, 255, 255, 0.94);
  border-bottom-color: #19352d14;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.site-header {
  transform: translateY(0);
  transition: transform 0.26s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.site-header.is-scroll-hidden {
  transform: translateY(calc(-100% - 1px));
  pointer-events: none;
}
@media (prefers-reduced-motion: reduce) {
  .site-header {
    transition: none;
  }
}
.site-header .header-inner {
  gap: 40px;
}
.site-header .brand img {
  width: 172px;
}
.site-header .primary-nav {
  gap: 36px;
}
.site-header .nav-item {
  align-items: center;
}
.site-header .nav-link {
  font-size: 17px;
  font-weight: 550;
  letter-spacing: -0.025em;
  min-height: 56px;
}
.site-header .nav-link:after {
  bottom: 8px;
  height: 1px;
}
.nav-toggle {
  width: 28px;
  color: #60766c;
}
.nav-toggle > .material-symbol {
  width: 16px;
  height: 16px;
}
.site-header .header-contact {
  border: 1px solid #195b4633;
  border-radius: 4px;
  background: #185b46;
  color: #fff;
  padding: 11px 22px;
  min-height: 44px;
  font-size: 16px;
  font-weight: 550;
  transition:
    background-color 0.2s,
    border-color 0.2s;
}
.site-header .nav-panel {
  background: #fff;
  border-top: 1px solid #e7ece6;
  border-bottom: 1px solid #dce4db;
  box-shadow: 0 22px 36px #172e260d;
}
.site-header .mega-inner {
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 64px;
  padding-block: 44px 48px;
  min-height: 330px;
}
.site-header .mega-inner.has-groups {
  grid-template-columns: 260px minmax(230px, 0.9fr) minmax(0, 1.7fr);
  gap: 48px;
}
.site-header .mega-intro {
  border: 0;
  min-height: 0;
  padding: 0 24px 0 0;
}
.site-header .mega-intro > strong {
  font-size: 32px;
  line-height: 1.35;
  font-weight: 550;
  letter-spacing: -0.045em;
}
.site-header .mega-intro > p {
  font-size: 16px;
  max-width: 220px;
  line-height: 1.8;
  margin-top: 18px;
}
.site-header .mega-intro .text-link {
  margin-top: 28px;
  font-size: 15px;
}
.site-header .mega-links {
  gap: 8px 36px;
}
.site-header .mega-links > a,
.site-header .mega-group-links > a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 7px;
  padding: 16px 18px;
  min-height: 88px;
  border-radius: 4px;
  color: #19352d;
  transition:
    background-color 0.2s,
    color 0.2s;
}
.site-header .mega-item-title {
  font-size: 18px;
  font-weight: 550;
  line-height: 1.4;
  letter-spacing: -0.025em;
}
.site-header .mega-item-description {
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: -0.015em;
  color: #597064;
}
.site-header .mega-group > p {
  font-size: 15px;
  color: #597064;
  letter-spacing: 0;
  margin-bottom: 12px;
  padding: 0 18px;
}
.site-header .mega-group-links {
  gap: 6px;
}
.site-header .mega-group:last-child {
  border-left: 1px solid #e5ebe3;
  padding-left: 30px;
}
.site-header .mega-group:last-child .mega-group-links {
  column-gap: 8px;
}
.site-header .mega-group:last-child .mega-item-title {
  font-size: 17px;
}
.nav-backdrop {
  background: #11271f24;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
@media (hover: hover) and (pointer: fine) {
  .site-header .header-contact:hover {
    background: #124b39;
    border-color: #124b39;
  }
  .site-header .mega-links > a:hover,
  .site-header .mega-group-links > a:hover {
    background: #f1f5ee;
    color: #185b46;
  }
}
@media (min-width: 961px) and (max-width: 1180px) {
  .site-header .header-inner {
    gap: 22px;
  }
  .site-header .primary-nav {
    gap: 18px;
  }
  .site-header .brand img {
    width: 154px;
  }
  .site-header .nav-link {
    font-size: 16px;
  }
  .site-header .header-contact {
    padding-inline: 17px;
  }
  .site-header .mega-inner {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 32px;
  }
  .site-header .mega-inner.has-groups {
    grid-template-columns: 180px minmax(200px, 0.9fr) minmax(0, 1.6fr);
    gap: 24px;
  }
  .site-header .mega-group:last-child {
    padding-left: 18px;
  }
  .site-header .mega-links {
    gap: 6px 18px;
  }
  .site-header .mega-links > a,
  .site-header .mega-group-links > a {
    padding-inline: 12px;
  }
  .site-header .mega-item-description {
    font-size: 14px;
  }
}
@media (max-width: 960px) {
  .site-header .header-inner {
    gap: 16px;
  }
  .site-header .brand img {
    width: 148px;
  }
  .site-header .header-contact {
    background: transparent;
    color: #185b46;
    border: 1px solid #cbd8cc;
    padding: 8px 14px;
    min-height: 42px;
    font-size: 15px;
  }
  .site-header .menu-toggle {
    width: 44px;
    height: 44px;
    margin-right: -6px;
  }
  .site-header .mobile-nav:not([hidden]) {
    padding: 12px 40px 32px;
    background: #fff;
    box-shadow: 0 20px 30px #172e260d;
  }
  .site-header .mobile-nav summary {
    font-size: 23px;
    letter-spacing: -0.035em;
    padding: 22px 0;
    min-height: 76px;
  }
  .site-header .mobile-nav details {
    border-bottom-color: #e0e7dd;
  }
  .site-header .mobile-nav details > div {
    padding-bottom: 22px;
  }
  .site-header .mobile-nav details > div > a {
    font-size: 17px;
    min-height: 48px;
    padding: 12px 16px;
  }
  .site-header .mobile-nav details[open] > summary {
    padding-bottom: 18px;
  }
  .site-header .mobile-nav details[open] > div {
    border-left: 2px solid #d7e1d2;
    margin-bottom: 22px;
    padding-bottom: 0;
  }
  .site-header .mobile-subgroup > p {
    font-size: 15px;
    padding-inline: 16px;
    margin-bottom: 8px;
  }
  .site-header .mobile-subgroup-links {
    gap: 4px 12px;
  }
  .site-header .mobile-subgroup-links > a {
    padding: 12px 16px;
    font-size: 16px;
    min-height: 48px;
  }
  .site-header .mobile-nav > .button {
    margin-top: 28px;
    min-height: 52px;
    font-size: 16px;
  }
  .site-header .mobile-nav summary > .material-symbol {
    width: 22px;
    height: 22px;
    fill: currentColor;
    stroke: none;
    transition: transform 0.2s;
  }
}
@media (max-width: 700px) {
  .site-header .mobile-nav:not([hidden]) {
    padding-inline: 24px;
  }
  .site-header .brand img {
    width: 137px;
  }
  .site-header .header-inner {
    gap: 12px;
  }
  .site-header .header-contact {
    font-size: 14px;
    padding-inline: 12px;
  }
}
@media (max-width: 360px) {
  .site-header .brand img {
    width: 126px;
  }
  .site-header .header-inner {
    gap: 8px;
  }
  .site-header .header-contact {
    padding-inline: 10px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-header .header-contact,
  .site-header .mobile-nav summary > .material-symbol {
    transition: none;
  }
  .nav-backdrop {
    animation: none;
  }
}

/* Disclosure state, pointer hover and keyboard focus each have one clear cue. */
.site-header .nav-toggle {
  height: 32px;
  width: 32px;
  border-radius: 4px;
  transition: color 0.18s ease;
}
.site-header .nav-toggle[aria-expanded="true"] {
  color: var(--green);
  background: transparent;
}
.site-header :is(a, button, summary):focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}
.site-header :is(a, button, summary):focus:not(:focus-visible) {
  outline: none;
}
@media (hover: hover) and (pointer: fine) {
  .site-header .nav-item:hover .nav-link,
  .site-header .nav-item:hover .nav-toggle {
    color: var(--green);
  }
  .site-header .nav-toggle:hover {
    background: transparent;
  }
}
@media (pointer: coarse) {
  .site-header .nav-toggle {
    width: 44px;
    height: 44px;
  }
}
@media (prefers-reduced-motion: reduce) {
  .site-header .nav-toggle {
    transition: none;
  }
}