/* Nested Menu Styles */
.menu {
    position: relative;
}

.menu-item {
    position: relative;
}

.has-children > a::after {
    content: ' ▼';
    font-size: 0.7em;
    margin-left: 0.3rem;
}

/* Hamburger button — hidden on desktop */
.menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--accent);
    color: var(--accent);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.4rem 0.7rem;
    line-height: 1;
    font-family: inherit;
}

.menu-item:hover > a {
    color: var(--accent);
    background: rgba(208, 208, 208, 0.05);
    border: 1px solid var(--accent);
}

.menu-item:hover.has-children > a {
    border-bottom: none;
    padding-bottom: calc(0.5rem + 1px);
    position: relative;
    z-index: 1001;
}

.submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-primary);
    border: 1px solid var(--accent);
    border-top: none;
    list-style: none;
    min-width: 200px;
    padding: 0;
    margin: 0;
    z-index: 1000;
    margin-top: 4px;
}

.menu-item.has-children:hover > .submenu::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--accent);
    clip-path: polygon(80px 0, 100% 0, 100% 100%, 80px 100%);
}

.submenu-item {
    position: relative;
}

.submenu-item:hover > a {
    background: rgba(208, 208, 208, 0.05);
    color: var(--accent);
    padding-left: calc(1rem + 0.5rem);
}

.submenu a {
    display: block;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s;
    border: none;
    text-transform: uppercase;
    font-size: 0.85rem;
}

.submenu a:hover {
    background: rgba(208, 208, 208, 0.05);
    color: var(--accent);
    padding-left: calc(1rem + 0.5rem);
}

.submenu-nested {
    display: none;
    position: absolute;
    top: 0;
    left: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--accent);
    border-left: none;
    list-style: none;
    min-width: 100px;
    padding: 0;
    margin: 0;
    z-index: 1000;
}

.submenu-item.has-children:hover > .submenu-nested::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 1px;
    background: var(--accent);
    clip-path: polygon(0 38px, 100% 38px, 100% 100%, 0 100%);
}

.submenu-nested a {
    padding: 0.5rem 1rem;
}

.submenu-nested a:hover {
    padding-left: 3.5rem;
}

.submenu-item.has-children > a::after {
    content: ' ▶';
    font-size: 0.7em;
    float: right;
    margin-left: 1rem;
}

/* Hover-triggered submenus — mouse devices only */
@media (hover: hover) {
    .menu-item:hover > .submenu {
        display: block;
    }
    .submenu-item:hover > .submenu-nested {
        display: block;
    }
}

/* ─── Mobile ──────────────────────────────────────────────── */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        flex-wrap: wrap;
    }

    nav .menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: 0;
        border-top: 1px solid var(--border);
        margin-top: 1rem;
        padding-bottom: 0.5rem;
    }

    nav .menu.is-open {
        display: flex;
    }

    .menu-item:hover > a,
    .submenu-item:hover > a {
        border: none !important;
        background: none !important;
        padding-left: 1rem !important;
    }

    .menu-item:hover.has-children > a {
        border-bottom: none;
        padding-bottom: 0.5rem;
    }

    .menu-item {
        border-bottom: 1px solid var(--border);
    }

    .menu-item > a {
        display: block;
        padding: 0.75rem 1rem;
        font-size: 1rem;
    }

    .has-children > a::after {
        float: right;
    }

    .has-children.is-open > a::after {
        content: ' ▲';
    }

    .submenu-item.has-children > a::after {
        content: ' ▶';
        float: right;
    }

    .submenu-item.has-children.is-open > a::after {
        content: ' ▼';
    }

    .submenu {
        position: static;
        border: none;
        border-top: 1px solid var(--border);
        margin: 0;
        min-width: unset;
        width: 100%;
        display: none;
        z-index: auto;
    }

    .submenu::before {
        display: none;
    }

    .submenu.is-open {
        display: block;
    }

    .submenu a {
        padding-left: 2rem;
    }

    .submenu a:hover {
        padding-left: 2.5rem;
    }

    .submenu-nested {
        position: static;
        border: none;
        border-top: 1px solid var(--border);
        width: 100%;
        display: none;
        z-index: auto;
    }

    .submenu-nested::after {
        display: none;
    }

    .submenu-nested.is-open {
        display: block;
    }

    .submenu-nested a {
        padding-left: 3rem;
    }

    .submenu-nested a:hover {
        padding-left: 3.5rem;
    }
}