/* ========== HEADER & NAVIGATION — White & Teal ========== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    background-color: #ffffff;
    border-bottom: 1px solid #eeeeee;
    transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
    background-color: #ffffff;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    border-bottom-color: transparent;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--site-max-width);
    margin: 0 auto;
    padding: 0 40px;
    height: 70px;
}

/* Branding */
.site-branding {
    flex-shrink: 0;
}

.site-title-link {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* "H" 아이콘 박스 */
.site-title-link::before {
    content: 'H';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-accent, #16a085);
    color: #ffffff;
    font-size: 16px;
    font-weight: 800;
    border-radius: 6px;
    letter-spacing: 0;
    flex-shrink: 0;
}

.site-title {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a2e;
    letter-spacing: -0.01em;
}

.custom-logo-link img {
    height: 36px;
    width: auto;
}

/* Navigation */
.main-navigation {
    flex: 1;
    display: flex;
    justify-content: center;
}

.primary-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.primary-menu li {
    position: relative;
}

.primary-menu li a {
    display: block;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #555555;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-radius: 4px;
    transition: all var(--transition-fast);
    position: relative;
}

.primary-menu li a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--color-accent, #16a085);
    transform: scaleX(0);
    transition: transform var(--transition-fast);
    border-radius: 1px;
}

.primary-menu li a:hover::after,
.primary-menu li.current-menu-item > a::after,
.primary-menu li.current-menu-ancestor > a::after,
.primary-menu li.current_page_item > a::after,
.primary-menu li.current_page_ancestor > a::after {
    transform: scaleX(1);
}

.primary-menu li a:hover,
.primary-menu li.current-menu-item > a,
.primary-menu li.current-menu-ancestor > a,
.primary-menu li.current-menu-parent > a,
.primary-menu li.current_page_item > a,
.primary-menu li.current_page_ancestor > a {
    color: var(--color-accent, #16a085);
}

/* Submenu */
.primary-menu li .sub-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 180px;
    background: #ffffff;
    border: 1px solid #eeeeee;
    border-radius: 8px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

.primary-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.primary-menu li .sub-menu li a {
    padding: 10px 20px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 0;
    color: #555555;
    text-transform: none;
    letter-spacing: 0;
}

.primary-menu li .sub-menu li a::after {
    display: none;
}

.primary-menu li .sub-menu li a:hover {
    color: var(--color-accent, #16a085);
    background-color: rgba(22, 160, 133, 0.06);
}

/* Utility */
.header-utility {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.search-toggle,
.menu-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777777;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.search-toggle:hover,
.menu-toggle:hover {
    color: var(--color-accent, #16a085);
    background-color: rgba(22, 160, 133, 0.08);
}

/* Write Button */
.header-write-btn {
    display: inline-flex;
    align-items: center;
    padding: 8px 20px;
    background: var(--color-accent, #16a085);
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 20px;
    transition: background var(--transition-fast), transform var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
}

.header-write-btn:hover {
    background: var(--color-accent-hover, #0e7a65);
    color: #ffffff;
    transform: translateY(-1px);
}

/* Hamburger */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 20px;
}

.hamburger span {
    display: block;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: all var(--transition-fast);
}

.menu-toggle {
    display: none;
}

/* 모바일 메뉴 닫기 버튼 — 기본 숨김 */
.mobile-menu-close {
    display: none;
}

/* 햄버거 → X 전환 */
.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ─── Search Overlay ─── */
.search-overlay {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(13, 53, 53, 0.3);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

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

/* 화이트 패널 */
.search-panel {
    background: #ffffff;
    padding: 44px 0 48px;
    position: relative;
    border-bottom: 1px solid #eeeeee;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.search-panel-inner {
    max-width: 860px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 검색 폼 */
.search-overlay .search-form {
    display: flex;
    align-items: center;
    border-bottom: 1.5px solid #e0e0e0;
    padding-bottom: 14px;
    margin-bottom: 24px;
}

.search-overlay .search-field {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #1a1a2e;
    font-size: 26px;
    font-family: var(--font-primary);
    font-weight: 300;
}

.search-overlay .search-field::placeholder {
    color: #cccccc;
}

.search-overlay .search-submit {
    color: #aaaaaa;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s ease;
}

.search-overlay .search-submit:hover {
    color: var(--color-accent, #16a085);
}

/* 인기 태그 */
.search-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.search-suggestion-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: #555555;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    padding: 5px 16px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.search-suggestion-tag:hover {
    color: #ffffff;
    background: var(--color-accent, #16a085);
    border-color: var(--color-accent, #16a085);
}

/* 닫기 버튼 */
.search-close {
    position: absolute;
    top: 16px;
    right: 20px;
    color: #aaaaaa;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: color 0.2s ease;
    background: none;
    border: none;
}

.search-close:hover {
    color: var(--color-accent, #16a085);
}