/* Site header, navigation, and sticky layout */
.site-header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 1.4rem 2rem;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    z-index: 1000;
    transition: var(--transition);
}

body > main {
    padding-top: 112px;
}

body.admin-bar .site-header {
    top: 32px;
}

body.admin-bar > main {
    padding-top: 144px;
}

@media (max-width: 1240px) {
    body > main {
        padding-top: 86px;
    }

    body.admin-bar > main {
        padding-top: 118px;
    }
}

@media (max-width: 782px) {
    body.admin-bar .site-header {
        top: 46px;
    }

    body.admin-bar > main {
        padding-top: 132px;
    }
}

.site-header.is-scrolled {
    padding: 0.9rem 2rem;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 1rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.header-store-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 0.7rem 1rem;
    border-radius: 999px;
    background: #12a150;
    color: #ffffff;
    font-size: 0.92rem;
    font-weight: 800;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    transition: var(--transition);
    box-shadow: 0 8px 22px rgba(18, 161, 80, 0.18);
}

.header-store-link:hover,
.header-store-link:focus {
    background: #0b7c3d;
    color: #ffffff;
}

.site-title a {
    text-decoration: none;
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.7rem;
    letter-spacing: -0.04em;
}

#menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

.main-navigation ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

.main-navigation ul li {
    margin-left: 2.8rem;
    position: relative;
}

.main-navigation ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1rem;
    padding: 0.5rem 0;
    transition: var(--transition);
    position: relative;
}

.main-navigation > div > ul > li > a,
.main-navigation > ul > li > a {
    white-space: nowrap;
}

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

.main-navigation ul li a:hover {
    color: var(--accent-color);
}

.main-navigation ul li a:hover::after {
    width: 100%;
}

@media (max-width: 1240px) {
    .site-header {
        padding: 0.9rem 1rem;
    }

    .header-container {
        position: relative;
    }

    .header-store-link {
        min-height: 38px;
        padding: 0.62rem 0.85rem;
        font-size: 0.84rem;
    }

    #menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 8px;
        color: var(--primary-color);
    }

    #menu-toggle[aria-expanded="true"] {
        background: var(--secondary-color);
    }

    .main-navigation {
        display: none;
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        width: 100%;
        box-sizing: border-box;
        max-height: calc(100vh - 90px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        background: #fff;
        box-shadow: var(--shadow-strong);
        z-index: 2000;
        border-top: 1px solid rgba(0, 51, 102, 0.08);
        border-bottom: 1px solid rgba(0, 51, 102, 0.08);
    }

    .main-navigation.is-open {
        display: block;
    }

    .main-navigation .menu,
    .main-navigation ul {
        flex-direction: column;
        align-items: stretch;
        padding: 0.75rem 0;
        gap: 0;
    }

    .main-navigation ul li {
        margin: 0;
        width: 100%;
    }

    .main-navigation ul li a {
        display: block;
        padding: 0.9rem 1.25rem;
        border-bottom: 1px solid #f0f0f0;
        font-size: 1rem;
        line-height: 1.45;
    }

    .main-navigation ul ul {
        width: 100%;
        background: #f7fafc;
        padding: 0;
        margin: 0;
        display: block;
        position: static;
        box-shadow: none;
        border: none;
    }

    .main-navigation ul ul li a {
        padding: 0.72rem 1.25rem 0.72rem 2.25rem;
        font-weight: 500;
        font-size: 0.92rem;
        color: var(--text-light);
    }
}

@media (min-width: 1241px) {
    .site-header.is-scrolled .header-container {
        justify-content: flex-start;
        gap: 1.15rem;
    }

    .site-header.is-scrolled #menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        order: 1;
        width: 44px;
        height: 44px;
        border-radius: 8px;
        color: var(--primary-color);
    }

    .site-header.is-scrolled #menu-toggle[aria-expanded="true"] {
        background: var(--secondary-color);
    }

    .site-header.is-scrolled .site-branding {
        order: 2;
    }

    .site-header.is-scrolled .header-actions {
        order: 3;
        margin-left: auto;
    }

    .site-header.is-scrolled .main-navigation {
        display: none;
        position: absolute;
        top: calc(100% + 0.75rem);
        left: 0;
        right: 0;
        order: 3;
        width: min(1120px, calc(100vw - 4rem));
        margin: 0 auto;
        box-sizing: border-box;
        background: #fff;
        border: 1px solid rgba(0, 51, 102, 0.08);
        border-radius: 8px;
        box-shadow: var(--shadow-strong);
        z-index: 2000;
    }

    .site-header.is-scrolled .main-navigation.is-open {
        display: block;
    }

    .site-header.is-scrolled .main-navigation > .menu,
    .site-header.is-scrolled .main-navigation > div > .menu,
    .site-header.is-scrolled .main-navigation > ul {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0;
        align-items: stretch;
        padding: 0.75rem;
    }

    .site-header.is-scrolled .main-navigation > .menu > li,
    .site-header.is-scrolled .main-navigation > div > .menu > li,
    .site-header.is-scrolled .main-navigation > ul > li {
        margin: 0;
    }

    .site-header.is-scrolled .main-navigation > div > ul > li > a,
    .site-header.is-scrolled .main-navigation > ul > li > a {
        display: block;
        padding: 0.85rem 1rem;
        border-radius: 8px;
        line-height: 1.35;
    }

    .main-navigation > div > ul > li > ul,
    .main-navigation > ul > li > ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        background: var(--white);
        min-width: 320px;
        box-shadow: var(--shadow-strong);
        padding: 1rem;
        border-radius: 0 0 8px 8px;
        z-index: 1000;
        border-top: 3px solid var(--accent-color);
    }

    .main-navigation ul li:hover > ul {
        display: grid;
        gap: 0.25rem;
        animation: fadeInSubmenu 0.18s ease;
    }
}

.main-navigation ul ul li {
    margin: 0;
    width: 100%;
}

.main-navigation ul ul li a {
    padding: 0.8rem 1rem;
    display: block;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.35;
}

.main-navigation ul ul li a::after {
    display: none;
}

.main-navigation ul ul li a:hover {
    background: var(--secondary-color);
    color: var(--accent-color);
    padding-left: 1.2rem;
}

@keyframes fadeInSubmenu {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media (min-width: 1241px) {
    html.is-header-compact body .site-header {
        padding-top: 0.7rem;
        padding-bottom: 0.7rem;
    }

    html.is-header-compact body .site-header .header-container {
        justify-content: flex-start;
        gap: 1.15rem;
    }

    html.is-header-compact body .site-header #menu-toggle {
        display: inline-flex !important;
        order: 1;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 8px;
        color: var(--primary-color);
    }

    html.is-header-compact body .site-header #menu-toggle[aria-expanded="true"] {
        background: var(--secondary-color);
    }

    html.is-header-compact body .site-header .site-branding {
        order: 2;
    }

    html.is-header-compact body .site-header .header-actions {
        order: 3;
        margin-left: auto;
    }

    html.is-header-compact body .site-header .main-navigation {
        display: none !important;
        position: absolute;
        top: calc(100% + 0.7rem);
        left: 0;
        right: 0;
        order: 3;
        width: min(1120px, calc(100vw - 4rem));
        margin: 0 auto;
        box-sizing: border-box;
        background: #fff;
        border: 1px solid rgba(0, 51, 102, 0.08);
        border-radius: 8px;
        box-shadow: var(--shadow-strong);
        z-index: 2000;
    }

    html.is-header-compact body .site-header .main-navigation.is-open {
        display: block !important;
    }

    html.is-header-compact body .site-header .main-navigation > .menu,
    html.is-header-compact body .site-header .main-navigation > div > .menu,
    html.is-header-compact body .site-header .main-navigation > ul {
        display: grid;
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0;
        align-items: stretch;
        padding: 0.75rem;
    }

    html.is-header-compact body .site-header .main-navigation > .menu > li,
    html.is-header-compact body .site-header .main-navigation > div > .menu > li,
    html.is-header-compact body .site-header .main-navigation > ul > li {
        margin: 0;
    }
}

@media (max-width: 640px) {
    .header-container {
        gap: 0.6rem;
    }

    .header-actions {
        gap: 0.45rem;
    }

    .header-store-link {
        padding: 0.58rem 0.72rem;
        font-size: 0.78rem;
    }
}