/*
 * Nadigi Blog Nav — CSS v1.2
 * Namespace: .nadigi-bn (tất cả selector có prefix, tránh bị override)
 * 
 * Mô phỏng chính xác Zapier Blog nav:
 * - Desktop: blog brand mark trái + menu ngang + hover dropdown
 * - Mobile: brand + text-link toggle + accordion panel
 */

/* ── CSS Variables: set từ PHP, fallback = brand palette ─────────────────── */
.nadigi-bn {
    /* Brand palette defaults */
    --bn-bg: #FFFFFF;
    --bn-border: #EBEBEB;
    /* gray_50 */
    --bn-text: #1F1E1C;
    /* black */
    --bn-hover: #FFD100;

    --bn-dd-bg: #FFFFFF;
    --bn-dd-text: #1F1E1C;
    --bn-dd-hbg: #F6F6F7;
    /* gray_10 */
    --bn-icon: #FFD100;
    /* brand yellow icon */
    --bn-blog-text: #1F1E1C;
    /* mobile text */
    --bn-toggle-text: #1F1E1C;
    --bn-mob-text: #1F1E1C;
    --bn-mob-dd-text: #424242;

    /* Fixed tokens */
    --bn-h: 50px;
    /* nav bar height */
    --bn-tr: 0.15s ease;
    --bn-sz: 14px;
    --bn-fw: 500;

    position: relative;
    width: 100%;
    font-size: var(--bn-sz);
    font-family: var(--bn-font, inherit);
}

/* Reset cứng để không bị theme can thiệp */
.nadigi-bn *,
.nadigi-bn *::before,
.nadigi-bn *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ════════════════════════════════════════════════════════════════
   DESKTOP BAR  (> 1024px)
   ════════════════════════════════════════════════════════════════ */
.nadigi-bn__bar {
    display: flex;
    align-items: center;
    height: var(--bn-h);
    background: var(--bn-bg);
    border-bottom: 1px solid var(--bn-border);
    padding: 0 0px;
    gap: 0;
}

.nadigi-bn__mob-bar,
.nadigi-bn__panel {
    display: none;
    /* ẩn trên desktop */
}

/* ── Brand / Blog label ──────────────────────────────────────── */
.nadigi-bn__brand {
    display: flex !important;
    align-items: center !important;
    gap: 8px;
    text-decoration: none !important;
    color: var(--bn-blog-text) !important;
    flex-shrink: 0;
    padding: 0 4px;
    border: none !important;
    background: none !important;
    box-shadow: none !important;
}

.nadigi-bn__brand-icon {
    display: block;
    flex-shrink: 0;
    color: var(--bn-icon);
    /* icon dùng brand color */
}

.nadigi-bn__brand-text {
    font-size: 16px !important;
    font-weight: 700 !important;
    color: var(--bn-blog-text) !important;
    line-height: 1 !important;
    letter-spacing: -0.01em;
}

/* ── Separator ───────────────────────────────────────────────── */
.nadigi-bn__sep {
    width: 1px;
    height: 22px;
    background: var(--bn-border);
    margin: 0 12px;
    flex-shrink: 0;
}

/* ── Menu list ───────────────────────────────────────────────── */
.nadigi-bn__menu {
    display: flex !important;
    align-items: stretch !important;
    list-style: none !important;
    height: 100%;
    gap: 0;
    padding: 0 !important;
    margin: 0 !important;
}

/* ── Menu item ───────────────────────────────────────────────── */
.nadigi-bn__item {
    position: relative;
    display: flex;
    align-items: stretch;
}

/* ── Menu link ───────────────────────────────────────────────── */
.nadigi-bn__link {
    display: flex !important;
    align-items: center !important;
    gap: 6px;
    padding: 0 15px !important;
    color: var(--bn-text) !important;
    text-decoration: none !important;
    font-size: var(--bn-sz) !important;
    font-weight: var(--bn-fw) !important;
    white-space: nowrap;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    transition: color var(--bn-tr);
    cursor: pointer;
}

.nadigi-bn__link:hover,
.nadigi-bn__item--drop:hover>.nadigi-bn__link {
    color: var(--bn-hover) !important;
    background: transparent !important;
}

/* ── Chevron ─────────────────────────────────────────────────── */
.nadigi-bn__chevron {
    flex-shrink: 0;
    color: inherit;
    transition: transform var(--bn-tr);
}

.nadigi-bn__item--drop:hover>.nadigi-bn__link .nadigi-bn__chevron {
    transform: rotate(180deg);
}

/* ── Dropdown (CSS-only hover, không cần JS trên desktop) ────── */
.nadigi-bn__dropdown {
    position: absolute;
    top: calc(var(--bn-h) - 1px);
    /* sát sát border */
    left: 0;
    min-width: 210px;
    background: var(--bn-dd-bg);
    border: 1px solid var(--bn-border);
    border-top: none;
    padding: 8px;
    border-radius: 0 0 8px 8px;
    z-index: 99999;

    /* Hide */
    opacity: 0;
    visibility: hidden;
    transform: translateY(-6px);
    pointer-events: none;
    transition: opacity var(--bn-tr), visibility var(--bn-tr), transform var(--bn-tr);
}

.nadigi-bn__item--drop:hover>.nadigi-bn__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.nadigi-bn__drop-link {
    display: block !important;
    padding: 8px 12px !important;
    margin-bottom: 2px;
    color: var(--bn-dd-text) !important;
    text-decoration: none !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    white-space: nowrap;
    background: transparent !important;
    border: none !important;
    border-radius: 6px !important;
    box-shadow: none !important;
    transition: background var(--bn-tr), color var(--bn-tr);
}

.nadigi-bn__drop-link:last-child {
    margin-bottom: 0;
}

.nadigi-bn__drop-link:hover {
    background: var(--bn-dd-hbg) !important;
    color: var(--bn-dd-htext) !important;
}

/* ════════════════════════════════════════════════════════════════
   MOBILE / TABLET  (≤ 1024px)
   ════════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {

    /* Ẩn desktop bar */
    .nadigi-bn__bar {
        display: none !important;
    }

    /* Hiện mobile bar & panel */
    .nadigi-bn__mob-bar {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        height: var(--bn-h);
        background: var(--bn-bg);
        padding: 0 0px;
    }

    /* Brand (mobile) */
    .nadigi-bn__mob-bar .nadigi-bn__brand {
        flex-shrink: 0;
    }

    /* Toggle: kiểu text link (như "Categories ^" của Zapier) */
    .nadigi-bn__toggle {
        display: flex !important;
        align-items: center;
        gap: 10px;
        background: transparent !important;
        border: none !important;
        color: var(--bn-toggle-text) !important;
        font-family: inherit;
        font-size: 14px;
        font-weight: 600;
        cursor: pointer;
        padding: 6px 0 !important;
        line-height: 1;
        box-shadow: none !important;
        transition: opacity var(--bn-tr);
    }

    .nadigi-bn__toggle:hover {
        opacity: .75;
    }

    .nadigi-bn__toggle-chev {
        flex-shrink: 0;
        color: inherit;
        transition: transform var(--bn-tr);
    }

    .nadigi-bn__toggle[aria-expanded="true"] .nadigi-bn__toggle-chev {
        transform: rotate(180deg);
    }

    /* Dropdown panel (absolute, full width) */
    .nadigi-bn__panel {
        display: block !important;
        position: absolute;
        top: var(--bn-h);
        left: 0;
        right: 0;
        background: var(--bn-bg);
        border: 1px solid var(--bn-border);
        border-top: none;
        border-radius: 0 0 10px 10px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, .08);
        z-index: 9999;
        overflow: hidden;
        max-height: 0;
        transition: max-height .3s ease;
    }

    .nadigi-bn__panel.is-open {
        max-height: 80vh;
        overflow-y: auto;
    }

    /* Panel list */
    .nadigi-bn__mob-list {
        list-style: none !important;
        margin: 0 !important;
        padding: 0px 0 !important;
    }

    .nadigi-bn__mob-item {
        border-bottom: none;
    }

    .nadigi-bn__mob-item:last-child {
        border-bottom: none;
    }

    /* Accordion button (parent with children) */
    .nadigi-bn__acc-btn {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        padding: 14px 20px !important;
        background: transparent;
        border: none !important;
        font-family: inherit;
        font-size: 15px;
        font-weight: 600;
        color: var(--bn-mob-text) !important;
        cursor: pointer;
        text-align: left;
        line-height: 1.2;
        transition: color var(--bn-tr);
        box-shadow: none !important;
    }

    /* Khi mở không đổi màu */
    .nadigi-bn__acc-btn[aria-expanded="true"] {
        background: transparent !important;
    }

    .nadigi-bn__acc-chev {
        flex-shrink: 0;
        color: inherit;
        transition: transform var(--bn-tr);
    }

    .nadigi-bn__acc-btn[aria-expanded="true"] .nadigi-bn__acc-chev {
        transform: rotate(180deg);
    }

    /* Sub list (accordion) */
    .nadigi-bn__acc-sub {
        list-style: none !important;
        margin: 0 0 0 20px !important;
        padding: 0 !important;
        overflow: hidden;
        max-height: 0;
        transition: max-height .25s ease;
        background: transparent !important;
        border-left: 1px solid var(--bn-border);
    }

    .nadigi-bn__acc-sub.is-open {
        max-height: 600px;
    }

    /* Sub link */
    .nadigi-bn__acc-link {
        display: block !important;
        padding: 11px 20px 11px 20px !important;
        font-size: 14px !important;
        font-weight: 400;
        color: var(--bn-mob-dd-text) !important;
        text-decoration: none !important;
        background: transparent !important;
        border: none !important;
        transition: color var(--bn-tr);
    }

    /* Plain link (no children) */
    .nadigi-bn__mob-plain {
        display: block !important;
        padding: 14px 20px !important;
        font-size: 15px !important;
        font-weight: 600;
        color: var(--bn-mob-text) !important;
        text-decoration: none !important;
        background: transparent !important;
        border: none !important;
        transition: color var(--bn-tr);
    }
}