.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(223, 231, 243, 0.9);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(14px);
}

.site-header__inner {
    display: flex;
    min-height: 74px;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    flex-shrink: 0;
    color: var(--brand-ink);
    font-size: 1.15rem;
    font-weight: 800;
    text-decoration: none;
}

.site-brand__logo {
    width: 34px;
    height: 34px;
    object-fit: contain;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.4rem;
}

.site-nav__list,
.site-header__actions,
.profile_ul {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-nav__link {
    display: inline-flex;
    padding: 0.7rem 0.75rem;
    border-radius: 8px;
    color: #273654;
    font-size: 0.92rem;
    font-weight: 650;
    text-decoration: none;
}

.site-nav__link:hover,
.site-nav__link.usa-current {
    color: var(--brand-primary);
    background: #f1f6ff;
}

.site-header__actions {
    gap: 0.65rem;
}

.site-header__signin {
    padding: 0.65rem 0.5rem;
    color: #273654;
    font-weight: 700;
    text-decoration: none;
}

.site-menu-button,
.site-nav__close {
    display: none;
}

.site-profile {
    position: relative;
}

.site-profile__trigger {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--brand-border);
    border-radius: 10px;
    background: #fff;
    color: var(--brand-ink);
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.site-profile__avatar {
    width: 28px;
    height: 28px;
}

.profile_dd {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 0;
    min-width: 210px;
    padding: 0.5rem;
    border: 1px solid var(--brand-border);
    border-radius: 12px;
    background: #fff;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    transition: 160ms ease;
}

.site-profile:hover .profile_dd,
.site-profile:focus-within .profile_dd {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.profile_ul {
    display: block;
}

.profile_ul a {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.75rem;
    border-radius: 8px;
    text-decoration: none;
}

.profile_ul a:hover {
    color: var(--brand-primary);
    background: #f4f7fb;
}

@media (max-width: 900px) {
    .site-menu-button {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        border: 0;
        border-radius: 9px;
        color: #fff;
        background: var(--brand-primary);
        font-weight: 700;
    }

    .site-nav {
        position: fixed;
        inset: 0 0 0 auto;
        display: block;
        width: min(88vw, 360px);
        padding: 5rem 1.25rem 2rem;
        background: #fff;
        box-shadow: -18px 0 45px rgba(16, 35, 71, 0.18);
        transform: translateX(105%);
        transition: transform 200ms ease;
    }

    .site-nav.is-visible {
        transform: translateX(0);
    }

    .site-nav__close {
        position: absolute;
        top: 1rem;
        right: 1rem;
        display: inline-flex;
        width: 42px;
        height: 42px;
        align-items: center;
        justify-content: center;
        border: 0;
        border-radius: 8px;
        background: #eff4fb;
    }

    .site-nav__close img {
        width: 22px;
    }

    .site-nav__list,
    .site-header__actions {
        display: grid;
        gap: 0.45rem;
    }

    .site-nav__link,
    .site-header__signin {
        width: 100%;
        padding: 0.9rem;
    }

    .site-header__actions {
        margin-top: 1rem;
    }

    .site-header__actions .site-button {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .site-brand__name {
        font-size: 1rem;
    }
}