:root {
    --header-white: #ffffff;
    --header-sand: #f6ead7;
    --header-sea: #168aad;
    --header-navy: #173b3f;
    --header-gold: #f6c453;
    --header-line: rgba(23, 59, 63, .12);
    --header-shadow: 0 18px 44px rgba(23, 59, 63, .12);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, .72);
    border-bottom: 1px solid rgba(255, 255, 255, .4);
    backdrop-filter: blur(18px);
    transition: background .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.site-header.is-scrolled,
.site-header.is-open {
    background: rgba(255, 255, 255, .96);
    border-bottom-color: var(--header-line);
    box-shadow: var(--header-shadow);
}

.site-header__inner {
    width: min(1180px, calc(100% - 32px));
    min-height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-header__brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--header-navy);
    font-weight: 900;
    letter-spacing: 0;
    text-decoration: none;
    white-space: nowrap;
}

.site-header__mark {
    width: 34px;
    height: 34px;
    display: inline-grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--header-sea), #0b4f6c);
    color: #fff;
    box-shadow: 0 10px 22px rgba(22, 138, 173, .22);
}

.site-header__logo {
    width: auto;
    height: 36px;
    max-width: 150px;
    object-fit: contain;
}

.site-header__menu {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-nav__list {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-nav__link,
.site-header__action-link,
.site-header__login {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
    padding: 9px 12px;
    border-radius: 8px;
    color: rgba(23, 59, 63, .78);
    font-weight: 800;
    text-decoration: none;
    transition: color .18s ease, background .18s ease, transform .18s ease;
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-header__action-link:hover,
.site-header__action-link:focus-visible,
.site-header__login:hover,
.site-header__login:focus-visible {
    color: var(--header-navy);
    background: rgba(22, 138, 173, .08);
    outline: none;
    transform: translateY(-1px);
}

.site-nav__link.is-active,
.site-header__action-link.is-active {
    color: var(--header-sea);
    background: rgba(22, 138, 173, .1);
}

.site-header__actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.site-header__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 10px 16px;
    border-radius: 999px;
    background: var(--header-sea);
    color: #fff;
    font-weight: 900;
    text-decoration: none;
    box-shadow: 0 12px 24px rgba(22, 138, 173, .22);
    transition: background .18s ease, box-shadow .18s ease, transform .18s ease;
}

.site-header__cta:hover,
.site-header__cta:focus-visible {
    background: #0f7897;
    box-shadow: 0 16px 30px rgba(22, 138, 173, .28);
    outline: none;
    transform: translateY(-1px);
}

.user-menu {
    position: relative;
}

.user-menu__button {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 42px;
    padding: 5px 8px 5px 5px;
    border: 1px solid var(--header-line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .74);
    color: var(--header-navy);
    cursor: pointer;
    font: inherit;
    font-weight: 900;
    transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.user-menu__button:hover,
.user-menu__button:focus-visible,
.user-menu.is-open .user-menu__button {
    border-color: rgba(22, 138, 173, .38);
    box-shadow: 0 12px 28px rgba(23, 59, 63, .12);
    outline: none;
    transform: translateY(-1px);
}

.user-menu__avatar {
    width: 32px;
    height: 32px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    background: var(--header-sand);
    color: var(--header-navy);
}

.user-menu__chevron {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform .18s ease;
}

.user-menu.is-open .user-menu__chevron {
    transform: rotate(225deg) translateY(-1px);
}

.user-menu__dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 12px);
    width: 210px;
    display: grid;
    gap: 4px;
    padding: 8px;
    border: 1px solid var(--header-line);
    border-radius: 8px;
    background: rgba(255, 255, 255, .98);
    box-shadow: var(--header-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px) scale(.98);
    transform-origin: top right;
    transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
}

.user-menu.is-open .user-menu__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.user-menu__dropdown a,
.user-menu__dropdown button {
    width: 100%;
    display: flex;
    align-items: center;
    min-height: 38px;
    padding: 9px 10px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    color: var(--header-navy);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    text-align: left;
    text-decoration: none;
}

.user-menu__dropdown a:hover,
.user-menu__dropdown a:focus-visible,
.user-menu__dropdown button:hover,
.user-menu__dropdown button:focus-visible {
    background: rgba(22, 138, 173, .08);
    outline: none;
}

.site-header__hamburger {
    display: none;
    width: 42px;
    height: 42px;
    place-items: center;
    gap: 5px;
    border: 1px solid var(--header-line);
    border-radius: 8px;
    background: rgba(255, 255, 255, .8);
    cursor: pointer;
}

.site-header__hamburger span {
    width: 18px;
    height: 2px;
    display: block;
    border-radius: 999px;
    background: var(--header-navy);
    transition: transform .18s ease, opacity .18s ease;
}

.site-header.is-open .site-header__hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.site-header.is-open .site-header__hamburger span:nth-child(2) {
    opacity: 0;
}

.site-header.is-open .site-header__hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 980px) {
    .site-header__hamburger {
        display: inline-grid;
    }

    .site-header__menu {
        position: absolute;
        left: 16px;
        right: 16px;
        top: calc(100% + 10px);
        display: grid;
        gap: 18px;
        padding: 18px;
        border: 1px solid var(--header-line);
        border-radius: 8px;
        background: rgba(255, 255, 255, .98);
        box-shadow: var(--header-shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: opacity .18s ease, visibility .18s ease, transform .18s ease;
    }

    .site-header.is-open .site-header__menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-nav__list,
    .site-header__actions {
        display: grid;
        gap: 8px;
        justify-content: stretch;
    }

    .site-nav__link,
    .site-header__action-link,
    .site-header__login,
    .site-header__cta,
    .user-menu__button {
        width: 100%;
        justify-content: center;
    }

    .user-menu__dropdown {
        position: static;
        width: 100%;
        margin-top: 8px;
        transform-origin: top center;
    }
}

@media (max-width: 560px) {
    .site-header__inner {
        width: min(100% - 24px, 1180px);
        min-height: 64px;
    }

    .site-header__brand {
        font-size: 15px;
    }

    .user-menu__name {
        max-width: 180px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
}