/* Site header & navigation */

.site-header {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(26, 102, 166, 0.08);
    box-shadow: var(--shadow-sm);
    z-index: 1030;
    transition: var(--transition-interactive);
    overflow-x: clip;
}

.site-header.site-header--scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 32px rgba(26, 102, 166, 0.1);
    border-bottom-color: rgba(26, 102, 166, 0.12);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 72px;
}

.site-header__logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.site-header__logo img {
    max-height: 80px;
    width: auto;
}

.site-header__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--primary);
}

.site-header__toggle svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.site-header__cta {
    flex-shrink: 0;
    padding: 0.55rem 1.25rem !important;
    font-size: 0.875rem;
    font-weight: 600;
}

/* Desktop main nav */
.main-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.main-nav__list {
    display: flex;
    align-items: center;
    gap: 0.15rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav__item {
    position: relative;
}

.main-nav__item--has-dropdown .main-nav__title {
    cursor: pointer;
}

.main-nav__title {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.main-nav__link {
    display: inline-flex;
    align-items: center;
    padding: 1.4rem 0.65rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--dark);
    white-space: nowrap;
    transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.main-nav__link:hover,
.main-nav__item:focus-within .main-nav__link,
.main-nav__item--open .main-nav__link {
    color: var(--primary);
    transform: translateY(-1px);
}

.main-nav__caret {
    display: inline-flex;
    align-items: center;
    margin-left: -0.25rem;
}

.main-nav__caret-icon {
    width: 10px;
    height: 10px;
    fill: currentColor;
    color: var(--primary);
    transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.main-nav__caret-icon--up {
    display: none;
}

.main-nav__item:hover .main-nav__caret-icon--down,
.main-nav__item:focus-within .main-nav__caret-icon--down,
.main-nav__item--open .main-nav__caret-icon--down {
    display: none;
}

.main-nav__item:hover .main-nav__caret-icon--up,
.main-nav__item:focus-within .main-nav__caret-icon--up,
.main-nav__item--open .main-nav__caret-icon--up {
    display: block;
}

/* Classic dropdown — aligned under parent nav item */
.main-nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    max-width: 300px;
    padding-top: 0.35rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease), visibility var(--duration) var(--ease);
    pointer-events: none;
    z-index: 1050;
}

.main-nav__item:hover .main-nav__dropdown,
.main-nav__item:focus-within .main-nav__dropdown,
.main-nav__item--open .main-nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.main-nav__dropdown-menu {
    list-style: none;
    margin: 0;
    padding: 0.35rem 0;
    background: var(--white);
    border: 1px solid rgba(26, 102, 166, 0.14);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
}

.main-nav__dropdown-item {
    margin: 0;
}

.main-nav__dropdown-item a {
    display: block;
    padding: 0.65rem 1.15rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.35;
    letter-spacing: 0.01em;
    text-transform: none;
    text-decoration: none;
    color: var(--dark);
    white-space: normal;
    transition: background-color var(--duration) var(--ease), color var(--duration) var(--ease);
}

.main-nav__dropdown-item a:hover,
.main-nav__dropdown-item a:focus {
    background: rgba(26, 102, 166, 0.08);
    color: var(--primary);
}

.main-nav__dropdown-item--overview {
    border-bottom: 1px solid rgba(26, 102, 166, 0.1);
    margin-bottom: 0.15rem;
}

.main-nav__dropdown-item--overview a {
    font-weight: 600;
    color: var(--primary);
}

/* Keep last items from overflowing the viewport */
.main-nav__item:nth-last-child(-n + 3) .main-nav__dropdown {
    left: auto;
    right: 0;
}

/* Mobile drawer nav */
.mobile-nav__group {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav__link,
.mobile-nav__toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 1rem 1.25rem;
    border: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: transparent;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    text-decoration: none;
    text-align: left;
}

.mobile-nav__toggle {
    transition: background var(--duration) var(--ease);
}

.mobile-nav__toggle:hover,
.mobile-nav__toggle:focus {
    background: rgba(255, 255, 255, 0.08);
}

.mobile-nav__caret {
    width: 12px;
    height: 12px;
    fill: var(--secondary);
    transition: transform var(--duration) var(--ease);
}

.mobile-nav__toggle[aria-expanded="true"] .mobile-nav__caret {
    transform: rotate(180deg);
}

.mobile-nav__sub {
    background: rgba(255, 255, 255, 0.05);
}

.mobile-nav__sublink {
    display: block;
    padding: 0.85rem 1.5rem 0.85rem 2.2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.mobile-nav__sublink:hover,
.mobile-nav__sublink:focus {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.mobile-nav__sublink--parent {
    font-weight: 700;
    color: var(--secondary);
}