/* Header */
.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--color-border);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.site-branding a {
    text-decoration: none;
    display: inline-block;
}

.site-logo {
    height: 72px;
    width: auto;
}

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
}

.nav-menu-wrap {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.main-navigation a {
    text-decoration: none;
    font-size: 0.95rem;
    color: var(--color-text);
}

.main-navigation a:hover {
    color: var(--color-primary);
    opacity: 1;
}

.main-navigation .current-menu-item > a,
.main-navigation .current_page_item > a {
    border-bottom: 2px solid currentColor;
}

.main-navigation .nav-donate {
    display: inline-block;
    padding: 0.45rem 1.15rem;
    background: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 20px;
    white-space: nowrap;
    flex-shrink: 0;
}

.main-navigation .nav-donate:hover {
    background: var(--color-primary-dark);
    color: var(--color-white);
    opacity: 1;
}

.nav-social {
    display: flex;
    align-items: center;
    color: var(--color-primary);
    text-decoration: none;
    line-height: 1;
    flex-shrink: 0;
}

.nav-social:hover {
    opacity: 0.75;
    color: var(--color-primary);
}

/* Hamburger toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 4px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text);
}

.hamburger-bar {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Accessibility */
.screen-reader-text {
    border: 0;
    clip: rect(1px, 1px, 1px, 1px);
    clip-path: inset(50%);
    height: 1px;
    margin: -1px;
    overflow: hidden;
    padding: 0;
    position: absolute;
    width: 1px;
    word-wrap: normal !important;
}