.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.08);
  transition: background-color 0.24s ease, box-shadow 0.24s ease;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.985);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.header-row {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-logo {
  height: 52px;
  width: auto;
  transition: transform 0.24s ease, filter 0.24s ease;
}

.site-logo:hover {
  transform: scale(1.04);
  filter: drop-shadow(0 6px 10px rgba(30, 58, 95, 0.2));
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 26px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(30, 58, 95, 0.12);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 6px 14px rgba(30, 58, 95, 0.08);
}

.lang-switcher-btn {
  border: 0;
  background: transparent;
  color: #47617f;
  cursor: pointer;
  border-radius: 999px;
  padding: 7px 12px;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.lang-switcher-btn:hover {
  color: var(--brand-blue);
  background: rgba(30, 58, 95, 0.08);
}

.lang-switcher-btn.is-active {
  color: var(--white);
  background: var(--brand-blue);
}

.desktop-nav a,
.mobile-nav a {
  position: relative;
  font-weight: 600;
  color: #244772;
  transition: color 0.2s ease, transform 0.2s ease;
}

.desktop-nav a::after,
.mobile-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, #ff6b35, #ff9a3c);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease;
}

.desktop-nav a:nth-child(2n) {
  color: #1e3a5f;
}

.desktop-nav a:nth-child(3n) {
  color: #15517f;
}

.desktop-nav a:hover,
.mobile-nav a:hover {
  color: var(--brand-orange);
  transform: translateY(-1px);
}

.desktop-nav a:hover::after,
.desktop-nav a.current::after,
.mobile-nav a:hover::after,
.mobile-nav a.current::after {
  transform: scaleX(1);
}

.desktop-nav a.current,
.mobile-nav a.current {
  color: var(--brand-orange);
}

.menu-toggle {
  display: none;
  border: 0;
  background: none;
  padding: 6px;
  color: var(--brand-blue);
  cursor: pointer;
  font-size: 1.7rem;
  transition: transform 0.2s ease, color 0.2s ease;
}

.menu-toggle:hover {
  transform: scale(1.08);
  color: var(--brand-orange);
}

.mobile-nav {
  display: none;
  border-top: 1px solid #e5e7eb;
  padding: 8px 0 14px;
}

.mobile-nav a {
  padding: 8px 0;
}

.mobile-nav.open {
  display: grid;
  gap: 10px;
}

.floating-contact {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 40;
  border: 0;
  background: var(--brand-orange);
  color: var(--white);
  border-radius: 50%;
  width: 76px;
  height: 76px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  animation: floatPulse 2.6s ease-in-out infinite;
}

.floating-contact:hover {
  transform: scale(1.06);
  background: var(--brand-orange-dark);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.28);
}

.floating-contact span {
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  white-space: pre-line;
}

@keyframes floatPulse {
  0%,
  100% {
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.24);
  }

  50% {
    box-shadow: 0 12px 22px rgba(255, 107, 53, 0.35);
  }
}