:root {
  --header-text: #111111;
  --header-muted: #6e6e73;
  --header-line: rgba(17, 17, 17, 0.08);
  --header-line-strong: rgba(17, 17, 17, 0.12);
  --header-surface: rgba(255, 255, 255, 0.78);
  --header-white: #ffffff;
  --header-blue: #0f3b82;
  --header-blue-deep: #0b2f67;
  --header-shadow: 0 18px 40px rgba(15, 23, 42, 0.06);
  --header-radius: 24px;
  --header-max: 1440px;
}

body.menu-open {
  overflow: hidden;
}

.site-topline {
  background: #0d6b70;
  color: rgba(255, 255, 255, 0.92);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.site-topline__inner {
  width: min(var(--header-max), calc(100% - 56px));
  min-height: 12px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--header-line);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--header-shadow);
  background: rgba(255, 255, 255, 0.94);
}

.site-header__inner {
  width: min(var(--header-max), calc(100% - 56px));
  min-height: 88px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-width: 220px;
}

.brand__mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: rgba(15, 59, 130, 0.06);
  border: 1px solid rgba(15, 59, 130, 0.08);
}

.brand__mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand__text strong {
  font-size: 28px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--header-text);
}

.brand__text em {
  font-style: normal;
  font-size: 12px;
  color: var(--header-muted);
  letter-spacing: 0.08em;
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.main-nav__item {
  position: relative;
}

.main-nav__link,
.main-nav__toggle {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--header-text);
  font: inherit;
  cursor: pointer;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.22s ease, color 0.22s ease, transform 0.22s ease;
}

.main-nav__link:hover,
.main-nav__toggle:hover {
  background: rgba(17, 17, 17, 0.04);
}

.main-nav__link.is-active,
.main-nav__item.is-active > .main-nav__toggle,
.main-nav__item.is-open > .main-nav__toggle {
  background: rgba(15, 59, 130, 0.08);
  color: var(--header-blue);
}

.main-nav__toggle svg {
  width: 14px;
  height: 14px;
  transition: transform 0.22s ease;
}

.main-nav__item.is-open .main-nav__toggle svg {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 188px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--header-line-strong);
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.10);
  border-radius: 20px;
  padding: 10px;
  display: grid;
  gap: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  backdrop-filter: blur(18px);
}

.dropdown-menu--wide {
  min-width: 210px;
}

.has-dropdown.is-open .dropdown-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 14px;
  color: var(--header-text);
  font-size: 14px;
  transition: background 0.22s ease, color 0.22s ease;
}

.dropdown-menu a:hover {
  background: rgba(15, 59, 130, 0.07);
  color: var(--header-blue);
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.header-actions__link {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--header-muted);
  transition: background 0.22s ease, color 0.22s ease;
}

.header-actions__link:hover {
  background: rgba(17, 17, 17, 0.04);
  color: var(--header-text);
}

.header-actions__cta {
  min-height: 46px;
  padding: 0 22px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, var(--header-blue), var(--header-blue-deep));
  color: #ffffff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 14px 24px rgba(15, 59, 130, 0.18);
  transition: transform 0.22s ease, box-shadow 0.22s ease, opacity 0.22s ease;
}

.header-actions__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 32px rgba(15, 59, 130, 0.22);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--header-line);
  background: rgba(255, 255, 255, 0.88);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  padding: 0;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--header-text);
}

.mobile-panel {
  display: none;
  width: min(var(--header-max), calc(100% - 24px));
  margin: 0 auto 14px;
  padding: 14px;
  border: 1px solid var(--header-line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.08);
}

.mobile-panel.is-open {
  display: block;
}

.mobile-panel__group {
  display: grid;
  gap: 8px;
}

.mobile-panel__group + .mobile-panel__group,
.mobile-panel__group + .mobile-panel__actions,
.mobile-panel__actions {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--header-line);
}

.mobile-panel__group a,
.mobile-panel__secondary,
.mobile-panel__primary {
  min-height: 46px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: 15px;
}

.mobile-panel__group a {
  background: rgba(17, 17, 17, 0.03);
  color: var(--header-text);
}

.mobile-panel__group--sub a {
  background: rgba(15, 59, 130, 0.05);
  color: var(--header-blue);
}

.mobile-panel__actions {
  display: grid;
  gap: 8px;
}

.mobile-panel__secondary {
  background: rgba(17, 17, 17, 0.04);
  color: var(--header-text);
}

.mobile-panel__primary {
  background: linear-gradient(180deg, var(--header-blue), var(--header-blue-deep));
  color: #ffffff;
  justify-content: center;
  font-weight: 600;
}

@media (max-width: 1240px) {
  .site-header__inner {
    grid-template-columns: auto 1fr auto;
  }

  .main-nav,
  .header-actions {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 768px) {
  .site-topline__inner,
  .site-header__inner {
    width: min(var(--header-max), calc(100% - 24px));
  }

  .site-header__inner {
    min-height: 74px;
    gap: 14px;
  }

  .brand {
    min-width: 0;
    gap: 10px;
  }

  .brand__mark {
    width: 34px;
    height: 34px;
  }

  .brand__text strong {
    font-size: 22px;
  }

  .brand__text em {
    font-size: 11px;
    letter-spacing: 0.04em;
  }
}