.site-header {
    padding: 24px 0;
    background: white;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.custom-logo {
    height: 60px;
    width: auto;
}

.main-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.main-menu a {
    color: #111;
    font-weight: 700;
}

.volunteer-btn {
    background: #87b91a;
    color: white;
    padding: 18px 28px;
    border-radius: 14px;
    font-weight: 700;
}