/* =========================================
   RETASAN HEADER STYLES
   ========================================= */

/* ── Site Header ── */
.site-header {
    position: relative;
    z-index: var(--z-sticky);
}

/* ── Top Bar ── */
.retasan-topbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: var(--space-xs) 0;
}

.topbar-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-date {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-muted);
}

.topbar-date .prompt-user {
    color: var(--accent-green);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.topbar-social {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.topbar-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    color: var(--text-muted);
    font-size: var(--fs-sm);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.topbar-social a:hover {
    color: var(--accent-cyan);
    background: var(--bg-tertiary);
}

/* ── Middle Header / Branding ── */
.retasan-branding {
    padding: var(--space-xl) 0;
    background: var(--bg-primary);
}

.branding-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-branding {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.site-branding .custom-logo-link img {
    max-height: 50px;
    width: auto;
}

.site-identity {}

.site-title {
    font-family: var(--font-heading);
    font-size: var(--fs-3xl);
    font-weight: 800;
    line-height: 1;
    margin: 0;
}

.site-title a {
    color: var(--text-primary);
    text-decoration: none;
}

.site-title a:hover {
    color: var(--text-primary);
}

.site-title .prompt-char {
    color: var(--accent-red);
}

.site-description {
    font-family: var(--font-mono);
    font-size: var(--fs-xs);
    color: var(--text-muted);
    margin-top: var(--space-xs);
    letter-spacing: 0.05em;
}

/* ── Header Search ── */
.header-search-wrap {
    position: relative;
}

.header-search-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 50%;
    color: var(--text-secondary);
    font-size: var(--fs-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.header-search-toggle:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: var(--shadow-glow-cyan);
}

.header-search-form {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 320px;
    padding: var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: var(--z-overlay);
}

.header-search-form.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ── Navigation Bar ── */
.retasan-navbar {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 2px solid var(--accent-red);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
}

.navbar-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ── Main Navigation ── */
.main-navigation {
    width: 100%;
}

.main-navigation ul {
    display: flex;
    align-items: center;
    gap: 0;
}

.main-navigation ul li {
    position: relative;
}

.main-navigation ul li a {
    display: block;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.main-navigation ul li a:hover,
.main-navigation ul li.current-menu-item > a,
.main-navigation ul li.current_page_item > a {
    color: var(--accent-red);
}

.main-navigation ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: width var(--transition-normal);
}

.main-navigation ul li a:hover::after,
.main-navigation ul li.current-menu-item > a::after {
    width: 100%;
}

/* ── Sub-menu ── */
.main-navigation ul li ul.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    flex-direction: column;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(5px);
    transition: all var(--transition-normal);
    z-index: var(--z-overlay);
}

.main-navigation ul li:hover > ul.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-navigation ul li ul.sub-menu li a {
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--fs-xs);
    border-bottom: 1px solid var(--border);
}

.main-navigation ul li ul.sub-menu li:last-child a {
    border-bottom: none;
}

.retas-category-bar {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.retas-category-nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
}

.retas-cat-link {
    display: inline-flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    transition: all var(--transition-fast);
    border-bottom: 2px solid transparent;
}

.retas-cat-link:hover,
.retas-cat-link.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
    background: rgba(0, 229, 255, 0.05);
}

.retas-cat-link.retas-cat-home {
    color: var(--accent-red);
    padding: var(--space-sm) var(--space-lg);
}

.retas-cat-link.retas-cat-home:hover {
    color: var(--accent-red-hover);
    border-bottom-color: var(--accent-red);
    background: rgba(229, 57, 53, 0.05);
}

.retas-cat-divider {
    display: inline-block;
    width: 1px;
    height: 16px;
    background: var(--border);
    margin: 0 var(--space-xs);
    vertical-align: middle;
}

/* ── Mobile Menu Toggle ── */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    cursor: pointer;
}

.menu-toggle .ham-icon {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

.menu-toggle[aria-expanded="true"] .ham-icon:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle[aria-expanded="true"] .ham-icon:nth-child(2) {
    opacity: 0;
}

.menu-toggle[aria-expanded="true"] .ham-icon:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}