:root {
    /* Shared by .site-header's side padding AND the (viewport-fixed)
       .menu-overlay's close button / contact block, so the Menu button and
       the overlay's Close button always land on the exact same vertical
       line, at every viewport width — not just coincidentally at one. */
    --header-pad-x: clamp(20px, 5vw, 88px);
}

.site-header {
    box-sizing: border-box;
    position: sticky;
    top: 0;
    z-index: 10;
    padding: 20px var(--header-pad-x);
    /* Solid, so it always reads the same (white bg, navy text) whenever
       it's actually visible — no matter what's scrolling underneath. */
    background: #FFFFFF;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/*
 * Toggled by assets/js/main.js's pill-morph IIFE for the entire
 * testing-block animation (grow + shrink-away, progress 0 -> 0.5) — the
 * header just disappears for that whole stretch and reappears (animated
 * via this same transition) the instant risks-section takes over, with no
 * lingering delay into the third block.
 */
.site-header.is-scroll-hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
    .site-header {
        transition: none;
    }
}

.site-header .container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-header__right {
    display: flex;
    align-items: center;
    gap: clamp(16px, 3vw, 40px);
}

.site-header__logo {
    display: inline-block;
    opacity: 0;
    animation: fade-in-up 0.7s ease-out 0.1s forwards;
}

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

.site-header__center-nav {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.site-header__center-list {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
    margin: 0;
    padding: 0;
    opacity: 0;
    animation: fade-in-up 0.7s ease-out 0.18s forwards;
}

.site-header__center-item a {
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 500;
    color: #023A85;
    text-decoration: none;
    padding-bottom: 4px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.site-header__center-item.is-active a,
.site-header__center-item a:hover {
    border-bottom-color: #023A85;
}

.site-header__phone {
    display: inline-block;
    font-family: 'Inter', sans-serif;
    font-style: normal;
    font-weight: 500;
    font-size: 18px;
    line-height: 1;
    letter-spacing: -0.02em;
    color: #023A85;
    text-decoration: none;
    white-space: nowrap;
    opacity: 0;
    animation: fade-in-up 0.7s ease-out 0.25s forwards;
}

.site-header__lang {
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
    animation: fade-in-up 0.7s ease-out 0.3s forwards;
}

.site-header__lang-btn {
    background: none;
    border: none;
    padding: 0;
    font: inherit;
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 600;
    color: rgba(2, 58, 133, 0.5);
    text-decoration: none;
    cursor: pointer;
    transition: color 0.2s ease;
}

.site-header__lang-btn.is-active {
    color: #023A85;
}

.site-header__lang-sep {
    color: #023A85;
    opacity: 0.4;
}

.site-header__menu-btn {
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    height: 46px;
    padding: 16px 24px;
    gap: 8px;
    border: 1px solid #023A85;
    border-radius: 40px;
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 500;
    line-height: 1;
    color: #023A85;
    cursor: pointer;
    opacity: 0;
    animation: fade-in-up 0.7s ease-out 0.35s forwards;
}

.site-header__menu-btn:hover {
    background: #023A85;
    color: #fff;
}

.menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: #023A85;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.4s ease, visibility 0s linear 0.4s;
}

.menu-overlay.is-open {
    visibility: visible;
    opacity: 1;
    transition: opacity 0.4s ease, visibility 0s linear 0s;
}

.menu-overlay__inner {
    box-sizing: border-box;
    width: 100%;
    height: 100%;
    padding: 64px var(--header-pad-x);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.menu-overlay__close {
    position: absolute;
    top: 40px;
    right: var(--header-pad-x);
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 46px;
    padding: 16px 24px;
    border: 1px solid #fff;
    border-radius: 40px;
    background: transparent;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.4s ease 0.15s, transform 0.4s ease 0.15s, background-color 0.3s ease, color 0.3s ease;
}

.menu-overlay.is-open .menu-overlay__close {
    opacity: 1;
    transform: translateY(0);
}

.menu-overlay__close:hover {
    background: #fff;
    color: #023A85;
}

.menu-overlay__list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-width: 900px;
}

.menu-overlay__item {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.menu-overlay__item:last-child {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.menu-overlay.is-open .menu-overlay__item {
    opacity: 1;
    transform: translateY(0);
    transition-delay: var(--delay, 0s);
}

.menu-overlay__item a {
    display: block;
    padding: 20px 0;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 64px;
    line-height: 1.1;
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color 0.3s ease;
}

.menu-overlay__item.is-active a,
.menu-overlay__item a:hover {
    color: #fff;
}

.menu-overlay__contact {
    position: absolute;
    left: var(--header-pad-x);
    bottom: 56px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.4s ease 0.15s, transform 0.4s ease 0.15s;
}

.menu-overlay.is-open .menu-overlay__contact {
    opacity: 1;
    transform: translateY(0);
}

.menu-overlay__contact a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    color: #fff;
    text-decoration: none;
    opacity: 0.85;
}

body.menu-overlay-open {
    overflow: hidden;
}

/*
 * Above 1100px, .site-header__center-nav already lists every link the
 * hamburger's menu-overlay does — showing both was redundant, and worse,
 * left .site-header__right (phone + lang + this button) fighting the
 * absolutely-centered nav for the same space, overlapping it at some
 * widths. Below 1100px the nav disappears (next rule) and this button
 * becomes the only way to reach the overlay, so it takes over there.
 */
@media (min-width: 1101px) {
    .site-header__menu-btn {
        display: none;
    }
}

/*
 * .site-header__center-nav is absolutely positioned (true page-center), so
 * it can't shrink or reflow with the surrounding flex content — it has to
 * disappear before .site-header__right's normal content could ever collide
 * with it, well ahead of the tighter mobile breakpoint below.
 */
@media (max-width: 1100px) {
    .site-header__center-nav {
        display: none;
    }
}

@media (max-width: 768px) {
    :root {
        --header-pad-x: 16px;
    }

    .site-header__center-nav,
    .site-header__phone {
        display: none;
    }

    .menu-overlay__inner {
        padding: 48px var(--header-pad-x);
    }

    .menu-overlay__close {
        top: 24px;
    }

    .menu-overlay__item a {
        font-size: 36px;
    }

    .menu-overlay__contact {
        bottom: 32px;
    }
}