.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  background: rgba(17, 29, 48, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.scrolled {
  background: rgba(17, 29, 48, 0.98);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.36);
  border-color: rgba(255, 240, 71, 0.16);
}

.header-inner {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

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

.brand-logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(255, 240, 71, 0.16));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand-name {
  font-family: "Barlow Condensed", Arial, sans-serif;
  font-size: 1.28rem;
  font-weight: 900;
  color: var(--color-yellow);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.brand-subtitle {
  margin-top: 4px;
  color: var(--color-gray);
  font-size: 0.72rem;
  letter-spacing: 2.2px;
  text-transform: uppercase;
}

.main-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list li {
  position: relative;
}

.nav-list a,
.dropdown-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 13px;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.82);
  font-family: "Barlow Condensed", Arial, sans-serif;
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--transition), background var(--transition);
}

.nav-list a::after,
.dropdown-toggle::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 5px;
  height: 2px;
  transform: scaleX(0);
  transform-origin: center;
  background: var(--color-yellow);
  transition: transform var(--transition);
}

.nav-list a:hover,
.nav-list a.active,
.dropdown-toggle:hover,
.dropdown-toggle.active,
.has-dropdown.open .dropdown-toggle {
  color: var(--color-yellow);
}

.nav-list a:hover::after,
.nav-list a.active::after,
.dropdown-toggle:hover::after,
.dropdown-toggle.active::after,
.has-dropdown.open .dropdown-toggle::after {
  transform: scaleX(1);
}

.dropdown-arrow {
  font-size: 0.66rem;
  transition: transform var(--transition);
}

.has-dropdown:hover .dropdown-arrow,
.has-dropdown.open .dropdown-arrow {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 16px);
  left: 0;
  width: 230px;
  padding: 10px;
  border-radius: var(--radius-md);
  background: rgba(17, 29, 48, 0.98);
  border: 1px solid rgba(255, 240, 71, 0.16);
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition);
}

.dropdown-menu a {
  width: 100%;
  min-height: 38px;
  justify-content: flex-start;
  color: rgba(255, 255, 255, 0.78);
  border-radius: var(--radius-sm);
}

.dropdown-menu a:hover {
  color: var(--color-yellow);
  background: rgba(255, 240, 71, 0.08);
}

.dropdown-menu a::after {
  display: none;
}

.has-dropdown:hover .dropdown-menu,
.has-dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  background: var(--color-yellow);
  color: var(--color-navy);
  font-family: "Barlow Condensed", Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  transition: transform var(--transition), box-shadow var(--transition);
}

.header-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(255, 240, 71, 0.28);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-white);
  margin: 0 auto;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}