.site-header {
    background: var(--color-bg);
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
}

.site-header .header-inner {
    max-width: var(--header-width, 1200px);
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    
}

.site-header .header-top {
    text-align: center;
    padding: 1.5rem 0 0.75rem;
}

.site-header .logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: -0.03em;
}
.site-header .logo img {
    max-height: none;
    height: 100%;
    width: auto;
    display: block;
    margin: 0 auto;
}

.site-header .desktop-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3.5rem;
    padding-bottom: 0.75rem;
}

.site-header .header-right {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding-bottom: 0.75rem;
}

.site-header .mobile-nav { display: none; }

.site-header .mobile-nav-divider {
    border-top: 1px solid var(--color-border);
    margin: 0.5rem 0;
}

.site-header .mobile-nav-secondary { padding: 0.25rem 0; }

.site-header .desktop-nav .nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.5rem 0;
    position: relative;
}
.site-header .desktop-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition, 0.2s ease);
}
.site-header .desktop-nav .nav-link:hover::after { width: 100%; }

.site-header .mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
}

.site-header .hamburger { display: flex; flex-direction: column; gap: 5px; }
.site-header .hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition, 0.2s ease);
}
.site-header .hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header .hamburger.active span:nth-child(2) { opacity: 0; }
.site-header .hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 768px) {
    .site-header .header-top { text-align: left; padding: 1rem 0; }
    .site-header .mobile-toggle { display: block; top: 1rem; }
    .site-header .desktop-nav { display: none; }
    .site-header .header-right { display: none; }
    .site-header .mobile-nav {
        display: none;
        padding-bottom: 0;
        border-top: 1px solid var(--color-border);
    }
    .site-header .mobile-nav.open { display: block; }
    .site-header .desktop-nav .nav-link::after { display: none; }
}

.site-header .nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.site-header .nav-item { list-style: none; }
.site-header .nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.75rem;
    color: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
    white-space: nowrap;
    transition: color 0.2s ease, background 0.2s ease;
}
.site-header .nav-link,
.site-header .nav-link:hover,
.site-header .nav-link:focus,
.site-header .nav-link:active,
.site-header .nav-link:visited { text-decoration: none; }
.site-header .nav-link:hover { color: var(--color-primary); }
.site-header .nav-link.active {
    color: var(--color-primary);
    font-weight: 700;
}
.site-header .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 2px;
    background: var(--color-primary);
}
.site-header .nav-link.button-primary,
.site-header .nav-link.button-primary:hover,
.site-header .nav-link.button-primary:focus,
.site-header .nav-link.button-primary:active,
.site-header .nav-link.button-secondary,
.site-header .nav-link.button-secondary:hover,
.site-header .nav-link.button-secondary:focus,
.site-header .nav-link.button-secondary:active { text-decoration: none; }
.site-header .nav-link.button-primary::before,
.site-header .nav-link.button-primary::after,
.site-header .nav-link.button-primary:hover::before,
.site-header .nav-link.button-primary:hover::after,
.site-header .nav-link.button-secondary::before,
.site-header .nav-link.button-secondary::after,
.site-header .nav-link.button-secondary:hover::before,
.site-header .nav-link.button-secondary:hover::after { content: none; display: none; }
.site-header .nav-link.button-primary {
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius);
    padding: 0.55rem 1.25rem;
}
.site-header .nav-link.button-primary:hover {
    background: var(--color-primary-alt);
    color: #fff;
    opacity: 0.92;
}
.site-header .nav-link.button-secondary {
    border: 1.5px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
    border-radius: var(--radius);
    padding: calc(0.55rem - 1.5px) calc(1.25rem - 1.5px);
}
.site-header .nav-link.button-secondary:hover {
    background: var(--color-primary);
    color: #fff;
}
.site-header .nav-dropdown { position: relative; }
.site-header .nav-dropdown-chevron { transition: transform 0.2s ease; flex-shrink: 0; }
.site-header .nav-dropdown-chevron--open { transform: rotate(180deg); }
.site-header .nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    min-width: 200px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    z-index: 100;
}
.site-header .nav-dropdown-item-wrapper { list-style: none; }
.site-header .nav-dropdown-item {
    display: block;
    padding: 0.55rem 1.25rem;
    color: inherit;
    font-size: 0.9rem;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease;
}
.site-header .nav-dropdown-item:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}
.site-header .nav-dropdown-item.active {
    color: var(--color-primary);
    background: var(--color-bg-alt);
    font-weight: 700;
}

.site-header .mobile-nav .nav-menu {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
}
.site-header .mobile-nav .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
}
.site-header .mobile-nav .nav-dropdown { width: 100%; }
.site-header .mobile-nav .nav-dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    margin: 0;
    padding: 0.25rem 0 0.25rem 1rem;
    min-width: 0;
    background: transparent;
}
.site-header .mobile-nav .nav-link.button-primary,
.site-header .mobile-nav .nav-link.button-secondary {
    align-self: flex-start;
    width: auto;
    margin: 0.375rem 1rem;
    padding: 0.4rem 1rem;
    font-size: 0.875rem;
}

.site-header .mobile-nav-secondary .nav-menu { align-items: flex-end; }
.site-header .mobile-nav-secondary .nav-link { width: auto; align-self: flex-end; }

.site-header .desktop-nav .nav-menu {
    gap: 2rem;
}

.site-header .desktop-nav .nav-link:not(:last-child)::after {
    content: '|';
    position: absolute;
    right: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-border);
    font-size: 1.5rem;
    height: auto;
    width: auto;
}