:root {
    --mb-blue: #1C54F2;
    --mb-black: #121212;
    --mb-white: #ffffff;
    --mb-border: rgba(0, 0, 0, 0.08);
    --mb-header-bg: rgba(255, 255, 255, 0.92);
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--mb-header-bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--mb-border);
}

.site-nav {
    height: 72px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.site-logo img {
    height: 36px;
    width: auto;
    display: block;
}

.site-nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.site-nav-links a {
    color: var(--mb-black);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -0.01em;
    opacity: 0.72;
    transition: opacity 0.2s ease;
}

.site-nav-links a:hover,
.site-nav-links a.active {
    opacity: 1;
}

.site-nav-cta {
    padding: 9px 16px;
    border-radius: 999px;
    background: var(--mb-blue);
    color: #fff !important;
    opacity: 1 !important;
}

.site-menu-button {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    cursor: pointer;
    border-radius: 10px;
}

.site-menu-button span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 4px auto;
    background: var(--mb-black);
    border-radius: 999px;
}

.site-mobile-menu {
    display: none;
}

@media (max-width: 768px) {
    .site-nav {
        height: 64px;
        padding: 0 20px;
    }

    .site-logo img {
        height: 32px;
    }

    .site-nav-links {
        display: none;
    }

    .site-menu-button {
        display: block;
    }

    .site-mobile-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        display: none;
        padding: 12px 20px 20px;
        background: rgba(255, 255, 255, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--mb-border);
    }

    .site-mobile-menu.active {
        display: grid;
        gap: 4px;
    }

    .site-mobile-menu a {
        padding: 14px 0;
        color: var(--mb-black);
        text-decoration: none;
        font-size: 15px;
        font-weight: 500;
    }
}