/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border-light);
    height: var(--header-height);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

/* --- Logo --- */
.site-header__logo {
    flex-shrink: 0;
}

.site-header__logo a {
    display: flex;
    align-items: center;
}

.site-header__logo img {
    height: 32px;
    width: auto;
}

.site-header__logo-text {
    font-family: var(--font-heading);
    font-size: var(--text-2xl);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--color-text);
}

/* --- Navigation --- */
.primary-nav {
    display: flex;
    align-items: center;
}

.primary-nav__list {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.primary-nav__item a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    transition: color var(--transition-fast);
}

.primary-nav__item a:hover,
.primary-nav__item.current-cat a,
.primary-nav__item.current-menu-item a {
    color: var(--color-accent);
}

.primary-nav__item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--space-3);
    right: var(--space-3);
    height: 2px;
    background: var(--color-accent);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.primary-nav__item a:hover::after,
.primary-nav__item.current-cat a::after,
.primary-nav__item.current-menu-item a::after {
    transform: scaleX(1);
}

/* --- Header Actions (search + mobile toggle) --- */
.site-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.search-toggle,
.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--color-text);
    transition: background var(--transition-fast);
}

.search-toggle:hover,
.menu-toggle:hover {
    background: var(--color-bg-alt);
}

.search-toggle svg,
.menu-toggle svg {
    width: 20px;
    height: 20px;
}

.menu-toggle {
    display: none;
}

/* --- Mobile Menu Overlay --- */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-nav-overlay.is-active {
    opacity: 1;
}

/* --- Mobile Menu Panel --- */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 100vh;
    background: var(--color-bg);
    z-index: 1001;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    padding: var(--space-6);
}

.mobile-nav.is-open {
    transform: translateX(0);
}

.mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-bottom: var(--space-6);
}

.mobile-nav__close button {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text);
}

.mobile-nav__close button:hover {
    background: var(--color-bg-alt);
}

.mobile-nav__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.mobile-nav__item a {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    transition: padding-left var(--transition-fast);
}

.mobile-nav__item a:hover {
    padding-left: var(--space-4);
    color: var(--color-accent);
}

/* --- Header Search Dropdown --- */
.header-search {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-6) 0;
    box-shadow: var(--shadow-md);
}

.header-search.is-open {
    display: block;
}

.header-search .search-form {
    max-width: 600px;
    margin: 0 auto;
}