* { box-sizing: border-box; }
body { margin: 0; background: #fff; color: #1f3d3a; font-family: "M PLUS Rounded 1c", "Yu Gothic", sans-serif; }
.site-header { background: #fff; padding: 28px 48px; }
.site-header__inner {
  max-width: 1200px;
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
}
.site-brand { display: flex; flex-direction: column; gap: 7px; color: #2b7476; text-decoration: none; flex-shrink: 0; }
.site-brand__name { font-size: 25px; font-weight: 700; letter-spacing: .045em; line-height: 1.5; }
.site-brand__english { font-family: Arial, sans-serif; font-size: 12px; font-weight: 500; letter-spacing: .24em; line-height: 1.5; color: #708f8c; padding-left: 2px; }
.site-nav { display: flex; align-items: center; gap: 32px; }
.site-nav__link, .site-nav__contact { font: inherit; font-weight: 500; font-size: 13px; white-space: nowrap; text-decoration: none; border: 0; }
.site-nav__link { color: #24413e; background: transparent; padding: 12px 0; }
.site-nav__contact { display: flex; align-items: center; gap: 20px; padding: 14px 23px; color: #fff; background: #2b7476; border-radius: 999px; }
.site-nav__contact span { font-family: Arial, sans-serif; font-size: 17px; }
.site-brand:focus-visible, .site-nav a:focus-visible { outline: 2px solid #2b7476; outline-offset: 6px; border-radius: 4px; }
.site-nav__link:hover { color: #2b7476; text-decoration: underline; text-underline-offset: 5px; }
.site-nav__contact:hover { background: #245f61; }
.site-nav button:disabled { opacity: 1; cursor: default; }
.site-menu-toggle { display: none; }
@media (max-width: 960px) {
  .site-header { padding: 22px 24px; }
  .site-header__inner { gap: 20px; flex-wrap: wrap; }
  .site-brand__name { font-size: 23px; }
  .site-nav { width: 100%; justify-content: space-between; gap: 16px; }
  .site-nav__link, .site-nav__contact { font-size: 12px; }
  .site-nav__contact { padding: 11px 17px; gap: 12px; }
}
@media (max-width: 480px) {
  .site-nav { display: grid; grid-template-columns: auto auto auto; gap: 8px 12px; }
  .site-nav__contact { grid-column: 1 / -1; justify-self: end; }
}
@media (max-width: 360px) {
  .site-header { padding-inline: 18px; }
  .site-nav { gap: 10px; }
  .site-nav__contact { padding-inline: 13px; }
}
@media (max-width: 960px) {
  .site-header { padding-block: 18px; }
  .site-header__inner { position: relative; flex-wrap: nowrap; gap: 12px; }
  .site-brand__name { font-size: clamp(19px, 4.8vw, 23px); }
  .site-brand__english { font-size: 10px; }
  .site-menu-toggle { display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 44px; height: 44px; flex-shrink: 0; padding: 10px; border: 1px solid #dce5df; border-radius: 12px; background: #fff; cursor: pointer; }
  .site-menu-toggle span { display: block; width: 21px; height: 2px; background: #244c49; }
  .site-menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .site-menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .site-menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .site-menu-toggle:focus-visible { outline: 2px solid #2b7476; outline-offset: 4px; }
  .site-nav { display: none; position: absolute; top: calc(100% + 12px); right: 0; width: min(280px, 100%); padding: 12px 20px; background: #fff; border: 1px solid #dce5df; border-radius: 16px; box-shadow: 0 12px 28px #244c4912; z-index: 10; }
  .site-nav.is-open { display: flex; flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__link { padding: 15px 0; font-size: 14px; }
  .site-nav__link + .site-nav__link { border-top: 1px solid #edf1ee; }
  .site-nav__contact { display: none; }
}