/* ==========================================================================
   HEADER – Logo, Desktop-Nav, Mobile-Nav, Hamburger, Drawer
   ========================================================================== */

#site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: #fff;
    border-bottom: 1px solid var(--border-light);
    transition:
        box-shadow 0.3s ease,
        background-color 0.3s ease;
}
#site-header.is-scrolled {
    box-shadow: 0 4px 20px rgb(0 0 0 / 0.08);
}
#site-header.is-scrolled .header-inner {
    height: 60px;
}
#site-header.is-scrolled .site-logo img,
#site-header.is-scrolled .site-logo .custom-logo {
    max-height: 40px;
}
.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: height 0.3s ease;
}

/* --- Logo --- */
.site-logo .logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.site-logo img,
.site-logo .custom-logo {
    max-height: 55px;
    width: auto;
    display: block;
    transition:
        max-height 0.3s ease,
        transform 0.3s ease,
        opacity 0.3s ease;
}
.site-logo .logo-link:hover img,
.site-logo .logo-link:hover .custom-logo {
    transform: scale(1.05);
    opacity: 0.85;
}
.site-logo .site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* --- Desktop-Nav --- */
.desktop-nav {
    display: none;
}
.desktop-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.desktop-nav-list > li {
    position: relative;
}
.desktop-nav-list > li > a {
    display: block;
    padding: 0.6rem 1.1rem;
    color: var(--color-text-dark);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 400;
    border-radius: 8px;
    position: relative;
    transition: color 0.25s ease;
}
.desktop-nav-list > li > a::after {
    content: "";
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition:
        width 0.25s ease,
        left 0.25s ease;
}
.desktop-nav-list > li > a:hover::after,
.desktop-nav-list > li.current-menu-item > a::after,
.desktop-nav-list > li.current-menu-ancestor > a::after {
    width: 60%;
    left: 20%;
}
.desktop-nav-list > li > a:hover,
.desktop-nav-list > li.current-menu-item > a,
.desktop-nav-list > li.current-menu-ancestor > a {
    color: var(--color-primary);
}

/* --- Desktop Sub-Menu --- */
.desktop-nav-list .sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background-color: #fff;
    border-radius: 12px;
    box-shadow:
        0 12px 32px rgb(0 0 0 / 0.12),
        0 0 0 1px rgb(0 0 0 / 0.04);
    list-style: none;
    padding: 0.5rem;
    margin: 0;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.2s ease,
        transform 0.2s ease,
        visibility 0s 0.2s;
    z-index: 1000;
}
.desktop-nav-list > li:hover > .sub-menu,
.desktop-nav-list > li:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
    transition-delay: 0s;
}
.desktop-nav-list .sub-menu li a {
    display: block;
    padding: 0.65rem 1rem;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.92rem;
    border-radius: 8px;
    transition:
        color 0.2s ease,
        background-color 0.2s ease;
}
.desktop-nav-list .sub-menu li a:hover {
    color: var(--color-primary);
    background-color: var(--bg-warm);
}

/* --- Mobile Hamburger --- */
.mobile-menu-trigger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: #fff0;
    border: none;
    cursor: pointer;
    padding: 10px;
    gap: 6px;
    border-radius: 8px;
    transition: background-color 0.2s ease;
}
.mobile-menu-trigger:hover {
    background-color: var(--bg-warm);
}
.burger-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-text-dark);
    border-radius: 2px;
    transition:
        transform 0.3s cubic-bezier(0.68, -0.6, 0.32, 1.6),
        opacity 0.2s ease,
        background-color 0.2s ease;
}
body.mobile-menu-open .burger-bar {
    background-color: var(--color-primary);
}
body.mobile-menu-open .mobile-menu-trigger .burger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
body.mobile-menu-open .mobile-menu-trigger .burger-bar:nth-child(2) {
    opacity: 0;
}
body.mobile-menu-open .mobile-menu-trigger .burger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* --- Mobile Nav Panel --- */
#mobile-nav-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    max-width: 85%;
    height: 100vh;
    background: linear-gradient(180deg, #ffffff 0%, #fdfbfa 100%);
    box-shadow: -8px 0 40px rgb(0 0 0 / 0.18);
    transform: translateX(100%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10001;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
body.mobile-menu-open #mobile-nav-panel {
    transform: translateX(0);
}
.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
    flex-shrink: 0;
}
.mobile-nav-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
}
#mobile-nav-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-warm);
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--color-text);
    cursor: pointer;
    transition:
        background-color 0.2s ease,
        color 0.2s ease;
}
#mobile-nav-close:hover {
    background-color: var(--color-primary);
    color: #fff;
}

/* --- Mobile Nav List --- */
.mobile-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}
.mobile-nav-list li {
    border-bottom: 1px solid var(--border-light);
}
.mobile-nav-list > li > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    color: var(--color-text-dark);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 400;
    transition:
        color 0.2s ease,
        background-color 0.2s ease,
        padding-left 0.2s ease;
}
.mobile-nav-list > li > a:hover {
    color: var(--color-primary);
    background-color: var(--bg-warm);
    padding-left: 1.75rem;
}
.mobile-nav-list > li.current-menu-item > a,
.mobile-nav-list > li.current-menu-ancestor > a {
    color: var(--color-primary);
    background-color: var(--bg-warm);
    border-left: 3px solid var(--color-primary);
}

/* --- Mobile Sub-Menu --- */
.mobile-nav-list .sub-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    background-color: #f8f4f2;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease-in-out;
}
.mobile-nav-list .menu-item-has-children.is-open > .sub-menu {
    max-height: 500px;
}
.mobile-nav-list .sub-menu a {
    padding: 0.85rem 1.5rem 0.85rem 2.5rem;
    font-size: 0.95rem;
    font-weight: 400;
    color: var(--color-text);
}
.mobile-nav-list .sub-menu a:hover {
    color: var(--color-primary);
}
.mobile-nav-list .menu-item-has-children > a::after {
    content: "";
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--color-primary);
    border-bottom: 2px solid var(--color-primary);
    transform: rotate(-45deg);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 0.5rem;
}
.mobile-nav-list .menu-item-has-children.is-open > a::after {
    transform: rotate(45deg);
}

/* --- Mobile Nav Overlay --- */
#mobile-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgb(47 47 47 / 0.4);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition:
        opacity 0.3s ease,
        visibility 0s 0.3s;
}
body.mobile-menu-open #mobile-nav-overlay {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}

/* --- Responsive --- */
@media (min-width: 921px) {
    .desktop-nav {
        display: block;
    }
    .mobile-menu-trigger,
    #mobile-nav-container {
        display: none;
    }
    .header-inner {
        height: 90px;
    }
    .site-logo img,
    .site-logo .custom-logo {
        max-height: 60px;
    }
    #main-content {
        padding: 3rem 2rem;
    }
}
@media (max-width: 920px) {
    .desktop-nav {
        display: none;
    }
    .mobile-menu-trigger {
        display: flex;
    }
    .header-inner {
        height: 70px;
        padding: 0 1rem;
    }
    .site-logo img,
    .site-logo .custom-logo {
        max-height: 45px;
    }
    #main-content {
        padding: 1.5rem 1rem;
    }
}