.site-header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    width: min(100%, 1920px);
    margin: 0 auto;
    height: 87px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    background: transparent;
    border-bottom: 1px solid transparent;
    transition: background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
    overflow: visible;
    pointer-events: auto;
}

.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0;
    background: rgba(255, 255, 255, 0.35);
    border-bottom: 1px solid rgba(77, 103, 118, 0.08);
    box-shadow: 0 12px 30px rgba(28, 34, 39, 0.08);
    backdrop-filter: blur(12px) saturate(1.25);
    -webkit-backdrop-filter: blur(12px) saturate(1.25);
    transition: opacity .25s ease;
}

.site-header>* {
    position: relative;
    z-index: 1;
}

.site-header.scrolled::before {
    opacity: 1;
}

.brand img {
    display: block;
    width: 202px;
    height: auto;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: clamp(22px, 2.4vw, 52px);
    padding: 15px 34px;
    border: 1px solid rgba(77, 103, 118, .16);
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(21, 21, 21, .12) 0%, rgba(21, 21, 21, 0) 100%);
    box-shadow: inset 0 1px rgba(255, 255, 255, .34);
    font-size: 16px;
    font-weight: 600;
    font-family: var(--font-redhat-display);
}

.main-nav a,
.nav-more {
    white-space: nowrap;
    transition: color .2s ease;
}

.main-nav a:hover,
.nav-more:hover {
    color: var(--color-success);
}

.nav-more {
    border: 0;
    background: transparent;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    cursor: pointer;
    color: inherit;
}

.nav-arrow {
    display: inline-block;
    width: 11px;
    height: 7px;
    background-color: currentColor;
    -webkit-mask: url("../assets/images/icons/arrow-down.svg") center / contain no-repeat;
    mask: url("../assets/images/icons/arrow-down.svg") center / contain no-repeat;
    transition: transform .22s ease;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown.is-open .nav-more {
    color: var(--color-success);
}

.nav-dropdown.is-open .nav-arrow {
    transform: rotate(180deg);
}

.more-menu {
    position: absolute;
    z-index: 10;
    top: calc(100% + 23px);
    right: -34px;
    display: grid;
    min-width: 224px;
    padding: 19px 28px;
    border: 1px solid rgba(91, 114, 126, .14);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.35);
    box-shadow: 0 22px 42px rgba(48, 65, 76, .16), inset 0 1px rgba(255, 255, 255, .5);
    backdrop-filter: blur(20px) saturate(130%);
    -webkit-backdrop-filter: blur(20px) saturate(130%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
}

.nav-dropdown.is-open .more-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.more-menu a {
    padding: 9px 0;
    color: var(--color-text-primary);
    font-size: 16px;
    font-weight: 500;
    transition: color .18s ease, transform .18s ease;
}

.more-menu a:hover,
.more-menu a:focus-visible {
    color: var(--color-success);
    outline: none;
    transform: translateX(3px);
}

.join-button {
    justify-self: end;
    padding: 17px 32px;
    border-radius: 999px;
    background: var(--color-success);
    color: var(--color-white);
    font-size: 16px;
    font-weight: 700;
    font-family: var(--font-redhat-display);
    box-shadow: 0 7px 20px rgba(77, 174, 113, .18);
}

.mobile-menu-toggle {
    display: none;
    width: 46px;
    height: 46px;
    padding: 0;
    border: 1px solid rgba(77, 103, 118, .16);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    -webkit-tap-highlight-color: transparent;
    transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
}

.mobile-menu-toggle span {
    display: block;
    width: 19px;
    height: 2px;
    border-radius: 999px;
    background: var(--color-text-primary);
    transition: transform .25s ease, opacity .25s ease;
}

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

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

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

.mobile-menu {
    position: fixed;
    top: 80px;
    left: 16px;
    right: 16px;
    z-index: 999;
    display: grid;
    gap: 2px;
    padding: 18px 16px;
    border: 1px solid rgba(91, 114, 126, .14);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.85);
    box-shadow: 0 22px 42px rgba(48, 65, 76, .16);
    backdrop-filter: blur(16px) saturate(130%);
    -webkit-backdrop-filter: blur(16px) saturate(130%);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .25s ease, visibility .25s ease, transform .25s ease;
}

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

.mobile-menu .nav-link {
    padding: 10px 8px;
    border-radius: 10px;
    color: var(--color-text-primary);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-redhat-display);
    transition: background-color .2s ease, color .2s ease, transform .2s ease;
}

.mobile-menu a:hover,
.mobile-menu a:focus-visible {
    background: rgba(101, 192, 127, 0.08);
    color: var(--color-success);
    outline: none;
    transform: translateX(3px);
}

@media (max-width: 1050px) {
    .site-header {
        grid-template-columns: auto 1fr auto;
    }

    .main-nav {
        justify-self: center;
        gap: 18px;
        padding: 15px 21px;
        font-size: 14px;
    }

    .brand img {
        width: 165px;
    }

    .join-button {
        padding: 14px 20px;
        font-size: 14px;
    }
}

@media (max-width: 754px) {
    .site-header {
        height: 83px;
        grid-template-columns: 1fr auto auto;
        padding-inline: 16px;
    }

    .brand img {
        width: 135px;
    }

    .main-nav {
        display: none;
    }

    .join-button {
        display: none;
    }

    .mobile-menu .join-button {
        display: block;
    }

    .mobile-menu-toggle {
        display: inline-flex;
    }
}