/* ============================================
   Left Sidebar Navigation
   ============================================ */

.qts-sidebar-nav {
    background: var(--color-black, #1A1A1A);
    min-height: 100%;
    padding: 0;
}

/* Menu reset */
.qts-sidebar-nav__menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.qts-sidebar-nav__menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Top-level items */
.qts-sidebar-nav__menu > li > a {
    display: block;
    padding: 0.9rem 1.2rem;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
}

.qts-sidebar-nav__menu > li > a:hover,
.qts-sidebar-nav__menu > li.current-menu-item > a,
.qts-sidebar-nav__menu > li.current-menu-ancestor > a {
    color: var(--color-white, #fff);
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--color-red, #C41E2A);
}

/* Expand indicator for parents */
.qts-sidebar-nav__menu > li.menu-item-has-children > a::after {
    content: '\25B8';
    float: right;
    transition: transform 0.25s ease;
    font-size: 0.8rem;
    opacity: 0.5;
}

.qts-sidebar-nav__menu > li.menu-item-has-children.qts-sidebar-nav--expanded > a::after {
    transform: rotate(90deg);
}

/* Sub-menu */
.qts-sidebar-nav__menu .sub-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    background: rgba(0, 0, 0, 0.2);
}

.qts-sidebar-nav__menu .menu-item-has-children.qts-sidebar-nav--expanded > .sub-menu {
    max-height: 600px;
}

.qts-sidebar-nav__menu .sub-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.qts-sidebar-nav__menu .sub-menu li:last-child {
    border-bottom: none;
}

.qts-sidebar-nav__menu .sub-menu a {
    display: block;
    padding: 0.65rem 1.2rem 0.65rem 2rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all 0.2s ease;
}

.qts-sidebar-nav__menu .sub-menu a:hover,
.qts-sidebar-nav__menu .sub-menu .current-menu-item a {
    color: var(--color-gold, #D4AF37);
    padding-left: 2.3rem;
}

/* Gold separator between top-level groups */
.qts-sidebar-nav__menu > li:nth-child(3n)::after {
    content: '';
    display: block;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-gold, #D4AF37), transparent);
    opacity: 0.3;
    margin: 0 1.2rem;
}

/* Mobile drawer */
.qts-mobile-sidebar,
.qts-mobile-sidebar__overlay,
.qts-mobile-sidebar__drawer {
    display: none;
}

.qts-mobile-sidebar__toggle,
.qts-mobile-sidebar__close {
    font: inherit;
}

@media (max-width: 768px) {
    body.qts-mobile-sidebar-is-open {
        overflow: hidden;
    }

    .qts-homepage__sidebar .qts-sidebar-nav {
        display: none;
    }

    .qts-mobile-sidebar {
        display: block;
        flex: 0 0 auto;
        margin-right: 0.35rem;
    }

    .qts-mobile-sidebar__toggle {
        display: inline-flex;
        align-items: center;
        gap: 0.45rem;
        justify-content: center;
        min-height: 2.25rem;
        padding: 0.48rem 0.85rem;
        color: var(--color-black, #2D2B28);
        background: linear-gradient(135deg, #D4B66A 0%, #C4A265 48%, #9A7B45 100%);
        border: 1px solid rgba(212, 182, 106, 0.65);
        border-radius: 999px;
        box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 7px 18px rgba(196, 162, 101, 0.28);
        cursor: pointer;
        font-family: var(--font-heading, 'Noto Serif SC', serif);
        font-size: 0.875rem;
        font-weight: 700;
        letter-spacing: 0.02em;
        text-shadow: 0 1px 0 rgba(255, 255, 255, 0.28);
    }

    .qts-mobile-sidebar__toggle:hover,
    .qts-mobile-sidebar__toggle[aria-expanded="true"] {
        color: var(--color-black, #2D2B28);
        background: linear-gradient(135deg, #E0C87A 0%, #C4A265 52%, #8A6B35 100%);
        box-shadow: 0 0 0 1px rgba(224, 200, 122, 0.22), 0 10px 24px rgba(196, 162, 101, 0.38);
    }

    .qts-mobile-sidebar__toggle-icon,
    .qts-mobile-sidebar__toggle-icon::before,
    .qts-mobile-sidebar__toggle-icon::after {
        display: block;
        width: 1.05rem;
        height: 2px;
        background: currentColor;
        border-radius: 999px;
    }

    .qts-mobile-sidebar__toggle-icon {
        position: relative;
    }

    .qts-mobile-sidebar__toggle-icon::before,
    .qts-mobile-sidebar__toggle-icon::after {
        content: '';
        position: absolute;
        left: 0;
    }

    .qts-mobile-sidebar__toggle-icon::before {
        top: -0.34rem;
    }

    .qts-mobile-sidebar__toggle-icon::after {
        top: 0.34rem;
    }

    .qts-mobile-sidebar__overlay {
        position: fixed;
        inset: 0;
        z-index: 9998;
        background: rgba(0, 0, 0, 0.48);
    }

    body.qts-mobile-sidebar-is-open .qts-mobile-sidebar__overlay:not([hidden]) {
        display: block;
    }

    .qts-mobile-sidebar__drawer {
        position: fixed;
        inset: 0 auto 0 0;
        z-index: 9999;
        display: flex;
        flex-direction: column;
        width: min(86vw, 340px);
        max-width: 340px;
        background: var(--color-black, #2D2B28);
        box-shadow: 14px 0 34px rgba(0, 0, 0, 0.32);
        transform: translateX(-100%);
        visibility: hidden;
        transition: transform 0.28s ease, visibility 0.28s ease;
    }

    body.qts-mobile-sidebar-is-open .qts-mobile-sidebar__drawer {
        transform: translateX(0);
        visibility: visible;
    }

    .qts-mobile-sidebar__drawer:focus {
        outline: none;
    }

    .qts-mobile-sidebar__header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 1rem;
        padding: 1rem 1.1rem;
        color: var(--color-white, #fff);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .qts-mobile-sidebar__title {
        font-family: var(--font-heading, 'Noto Serif SC', serif);
        font-size: 1rem;
        font-weight: 700;
        color: var(--color-gold, #C4A265);
    }

    .qts-mobile-sidebar__close {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 2.25rem;
        height: 2.25rem;
        color: rgba(255, 255, 255, 0.78);
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 999px;
        cursor: pointer;
        font-size: 1.45rem;
        line-height: 1;
    }

    .qts-mobile-sidebar__close:hover {
        color: var(--color-white, #fff);
        background: rgba(255, 255, 255, 0.12);
    }

    .qts-mobile-sidebar__drawer .qts-sidebar-nav {
        display: block;
        min-height: auto;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }
}