/* ============================================================
   nav-dropdown.css — выпадающее меню в шапке
   Версия 2: мобильный вариант — 2 колонки + скролл
   ============================================================ */

/* ===== ДЕСКТОП ===== */
.nav-dropdown {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav-dropdown .nav-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-dropdown .nav-item .caret {
    font-size: .65rem;
    opacity: .6;
    transition: transform .3s;
    display: inline-block;
}

.nav-dropdown:hover .nav-item .caret {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(6px);
    min-width: 220px;
    background: rgba(5, 10, 18, .98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 255, 204, .2);
    border-radius: 16px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    opacity: 0;
    visibility: hidden;
    transition: all .25s ease;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .5);
    z-index: 1200;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-menu a {
    color: #94a3b8;
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: .9rem;
    font-weight: 600;
    transition: all .2s ease;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: .3px;
}

.nav-dropdown-menu a:hover {
    background: rgba(0, 255, 204, .08);
    color: #00ffcc;
}

.nav-dropdown-menu a.active {
    color: #00ffcc;
    background: rgba(0, 255, 204, .06);
}

/* ============================================================
   МОБИЛЬНАЯ ВЕРСИЯ
   ============================================================ */
@media (max-width: 768px) {

    /* -------- Общий контейнер меню: скролл + высота -------- */
    .web3-header .header-nav,
    .header-nav {
        max-height: calc(100vh - 90px) !important;
        max-height: calc(100dvh - 90px) !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        padding-bottom: 20px !important;
    }

    /* Тонкий скроллбар */
    .header-nav::-webkit-scrollbar {
        width: 4px;
    }
    .header-nav::-webkit-scrollbar-track {
        background: transparent;
    }
    .header-nav::-webkit-scrollbar-thumb {
        background: rgba(0, 255, 204, .3);
        border-radius: 4px;
    }

    /* -------- Сам dropdown -------- */
    .nav-dropdown {
        width: 100%;
        flex-direction: column;
    }

    .nav-dropdown .nav-item {
        justify-content: center;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, .05);
        padding: 12px 16px !important;
        cursor: pointer;
    }

    .nav-dropdown.open .nav-item .caret {
        transform: rotate(180deg);
    }

    /* -------- Принудительно скрываем подменю по умолчанию -------- */
    .nav-dropdown-menu,
    .header-nav .nav-dropdown-menu {
        position: static !important;
        display: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        transform: none !important;
        background: transparent !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        min-width: 0 !important;
        left: auto !important;
        top: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }

    /* -------- Раскрытое подменю — ДВЕ КОЛОНКИ -------- */
    .nav-dropdown.open .nav-dropdown-menu,
    .header-nav .nav-dropdown.open .nav-dropdown-menu {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 4px 6px !important;
        padding: 8px 12px 14px !important;
        max-height: none !important;
        overflow: visible !important;
    }

    /* Пункты подменю — компактнее */
    .nav-dropdown-menu a,
    .header-nav .nav-dropdown-menu a {
        padding: 8px 10px !important;
        font-size: .82rem !important;
        text-align: center !important;
        width: 100% !important;
        border-radius: 8px !important;
        white-space: normal !important;
        letter-spacing: 0 !important;
        line-height: 1.25 !important;
        word-break: break-word !important;
    }

    /* Одинокие пункты (если их нечётное число) — растягиваем на 2 колонки */
    .nav-dropdown.open .nav-dropdown-menu a:last-child:nth-child(odd),
    .header-nav .nav-dropdown.open .nav-dropdown-menu a:last-child:nth-child(odd) {
        grid-column: 1 / -1;
    }

    /* -------- Общие пункты навигации — компактнее -------- */
    .header-nav .nav-item {
        padding: 12px 16px !important;
    }
}