/* ========================================
   Header Base
   ======================================== */
.site-header {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ========================================
   Header Main Row
   ======================================== */
.header-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-right {
    display: flex;
    align-items: center;
}

/* ========================================
   Menu Toggle Button
   ======================================== */
.menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-grey-700);
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.menu-toggle:hover {
    background-color: var(--color-grey-100);
}

.menu-toggle svg {
    flex-shrink: 0;
}

.menu-toggle .icon-close {
    display: none;
}

.menu-toggle.is-active .icon-menu {
    display: none;
}

.menu-toggle.is-active .icon-close {
    display: block;
}

/* ========================================
   Search Toggle
   ======================================== */
.search-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-grey-700);
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.search-toggle:hover {
    background-color: var(--color-grey-100);
}

.search-toggle svg {
    flex-shrink: 0;
}


/* ========================================
   Inline Search Panel
   ======================================== */
.header-search {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows var(--transition-slow);
}

.header-search.is-active {
    grid-template-rows: 1fr;
}

.header-search-inner {
    overflow: hidden;
}

.header-search-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) 0;
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Search Form
   ======================================== */
.search-form {
    display: flex;
    align-items: center;
    flex: 1 1 auto;
    min-width: 0;
    gap: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-grey-50);
    padding: 0 var(--space-2) 0 var(--space-5);
    transition: border-color var(--transition-base), background-color var(--transition-base);
}

.search-form:focus-within {
    border-color: var(--color-brand);
    background-color: var(--color-surface);
}

.search-field {
    flex: 1 1 auto;
    min-width: 0;
    height: 44px;
    border: none;
    outline: none;
    background: transparent;
    font-family: var(--font-body);
    font-size: var(--text-base);
    color: var(--color-text-primary);
}

.search-field::placeholder {
    color: var(--color-text-light);
}

.search-field::-webkit-search-cancel-button {
    -webkit-appearance: none;
    appearance: none;
}

.search-submit {
    flex-shrink: 0;
    height: 34px;
    padding: 0 var(--space-4);
    border: none;
    border-radius: var(--radius-full);
    background-color: var(--color-brand);
    color: #fff;
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.search-submit:hover {
    background-color: var(--color-brand-hover);
}

/* ========================================
   Search Close Button
   ======================================== */
.search-close {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-grey-700);
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.search-close:hover {
    background-color: var(--color-grey-100);
}

.search-close svg {
    flex-shrink: 0;
}

/* ========================================
   Search Toggle Active State
   ======================================== */
.search-toggle.is-active {
    background-color: var(--color-grey-100);
    color: var(--color-brand);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 767px) {
    .header-search-row {
        padding: var(--space-3) 0;
        gap: var(--space-2);
    }

    .search-field {
        height: 40px;
        font-size: var(--text-base);
    }

    .search-submit {
        height: 32px;
        padding: 0 var(--space-3);
        font-size: var(--text-sm);
    }
}



/* ========================================
   Navigation Overlay
   ======================================== */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 150;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

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

/* ========================================
   Navigation Drawer
   ======================================== */
.nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    height: 100%;
    background-color: var(--color-surface);
    z-index: 200;
    overflow-y: auto;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--shadow-lg);
}

body.admin-bar .nav-drawer {
    top: 32px;
    height: calc(100% - 32px);
}

.nav-drawer.is-active {
    transform: translateX(0);
}

.nav-drawer-header {
    display: flex;
    align-items: center;
    padding: var(--space-4) var(--space-5);
    justify-content: space-between;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.nav-drawer-menu {
    list-style: none;
    margin: 0;
    padding: var(--space-2) 0;
}

.nav-drawer-item {
    margin: 0;
    padding: 0;
}

.nav-drawer-link {
    display: block;
    padding: var(--space-3) 26px;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: var(--font-medium);
    color: var(--color-grey-800);
    text-decoration: none;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.nav-drawer-link:hover {
    background-color: var(--color-grey-100);
    color: var(--color-brand);
}

/* ========================================
   Navigation Drawer Close Button
   ======================================== */
.nav-drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-grey-700);
    cursor: pointer;
    transition: background-color var(--transition-base);
}

.nav-drawer-close:hover {
    background-color: var(--color-grey-100);
}

.nav-drawer-close svg {
    flex-shrink: 0;
}

/* ========================================
   Body Lock (when drawer is open)
   ======================================== */
body.nav-open {
    overflow: hidden;
}

/* ========================================
   Responsive
   ======================================== */
@media (min-width: 768px) {
    .header-container {
        padding: 0 var(--space-5);
    }
}

@media (max-width: 767px) {
    body.admin-bar .nav-drawer {
        top: 46px;
        height: calc(100% - 46px);
    }

    .header-main {
        height: 58px;
    }

    a.site-logo img {
        width: 140px;
        height: auto;
    }
}