/* =====================================================
   NEWS DETAIL (v2) — Coteccons
   Desktop: max-width 1440px, side-padding 56px
            inner content: 1328px, article col: 878px (centred)
   Mobile:  side-padding 16px, full-width article col
   =====================================================
   COLOR TOKENS
   - Blue 500       #264ABC  primary / headings
   - Grey text 300  #767676  body text
   - Grey text 500  #333333  date value
   - Grey 100       #F7F6F5  source-box bg / share-btn-mb bg
   - Grey 300       #E4E2DF  dividers / share-btn-mb border
   - Caption grey   #A1A1A1  figure captions
   - Serif caption  Noto Serif, italic
===================================================== */

:root {
    --nd-blue: #264ABC;
    --nd-grey-text: #767676;
    --nd-grey-dark: #333333;
    --nd-grey-100: #F7F6F5;
    --nd-grey-300: #E4E2DF;
    --nd-caption: #A1A1A1;
    --nd-font: 'Lexend Deca', sans-serif;
    --nd-font-serif: 'Noto Serif', serif;
    --nd-side-px: 56px;
    --nd-side-px-mb: 16px;
    --nd-inner-max: 1328px;
    --nd-col-max: 878px;
    --nd-block-gap: 40px;
    --nd-block-gap-mb: 24px;
}

/* ─────────────────────────────────────────────────────
   SHARED INNER CONTAINER
───────────────────────────────────────────────────── */
.nd-hero__inner,
.nd-body__inner {
    max-width: calc(var(--nd-inner-max) + var(--nd-side-px) * 2);
    margin: 0 auto;
    padding: 0 var(--nd-side-px);
}

/* Centered article column (878 px on desktop) */
.nd-hero__col,
.nd-body__col {
    max-width: var(--nd-col-max);
    margin: 0 auto;
}

/* ─────────────────────────────────────────────────────
   HERO SECTION
───────────────────────────────────────────────────── */
.nd-hero {
    background: #fff;
    padding-top: 44px;
    padding-bottom: 0;
}

/* ── Title ── */
.nd-hero__title {
    font-family: var(--nd-font);
    font-size: 40px;
    font-weight: 500;
    line-height: 1.25;
    color: var(--nd-blue);
    margin: 0 0 16px;
    text-transform: unset;
}

/* ── Meta row (date + share) ── */
.nd-hero__meta {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
}

/* Date group */
.nd-hero__date-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.nd-hero__date-label {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--nd-grey-text);
}

.nd-hero__date-value {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--nd-grey-dark);
}

/* Share group */
.nd-hero__share {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    flex-shrink: 0;
}

.nd-hero__share-label {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--nd-grey-text);
}

.nd-hero__share-icons {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nd-hero__share-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: opacity 0.2s ease;
}

    .nd-hero__share-link:hover {
        opacity: 0.75;
    }

.nd-hero__copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

    .nd-hero__copy-btn:hover {
        opacity: 0.75;
    }

/* Mobile share button (hidden on desktop) */
.nd-hero__share-btn-mb {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--nd-grey-100);
    border: 1px solid var(--nd-grey-300);
    cursor: pointer;
    color: #000;
    padding: 0;
    transition: background 0.2s ease;
    flex-shrink: 0;
}

    .nd-hero__share-btn-mb:hover {
        background: var(--nd-grey-300);
    }

/* Divider */
.nd-hero__divider {
    display: block;
    width: 100%;
    height: 0;
    border: none;
    border-top: 2px solid var(--nd-grey-300);
    margin: 24px 0 0;
    max-width: var(--nd-col-max);
}

/* ── Back button (desktop only — sits in left gutter) ── */
.nd-back-btn {
    display: none; /* hidden on mobile */
    text-transform: uppercase;
}

@media (min-width: 1024px) {
    .nd-hero__inner {
        position: relative;
    }

    .nd-back-btn {
        position: absolute;
        left: var(--nd-side-px);
        top: 10px;
        display: inline-flex;
        align-items: center;
        gap: 12px;
        padding: 16px 24px;
        height: 56px;
        background: var(--nd-blue);
        color: #fff;
        font-family: var(--nd-font);
        font-size: 16px;
        font-weight: 600;
        line-height: 1.5;
        text-decoration: none;
        white-space: nowrap;
        transition: opacity 0.2s ease;
    }

        .nd-back-btn:hover,
        .nd-back-btn:focus {
            opacity: 0.85;
            color: #fff;
        }
}

/* ─────────────────────────────────────────────────────
   ARTICLE BODY SECTION
───────────────────────────────────────────────────── */
.nd-body {
    background: #fff;
    padding: 40px 0 80px;
}

/* ── Paragraphs ── */
.nd-body__para {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--nd-grey-text);
    margin: 0;
}

    .nd-body__para + .nd-body__para {
        margin-top: var(--nd-block-gap);
    }

    .nd-body__para strong {
        font-weight: 600;
        color: var(--nd-grey-text);
    }

    .nd-body__para em {
        font-style: italic;
        color: var(--nd-grey-text);
    }

.nd-body__link {
    color: var(--nd-blue);
    text-decoration: underline;
    text-underline-offset: 2px;
}

    .nd-body__link:hover {
        opacity: 0.8;
    }

/* ── Figure (image + caption) ── */
.nd-figure {
    margin: var(--nd-block-gap) 0 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

    .nd-figure + .nd-body__para,
    .nd-body__para + .nd-figure,
    .nd-figure + .nd-figure {
        margin-top: var(--nd-block-gap);
    }

.nd-figure__img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

.nd-figure__caption {
    font-family: var(--nd-font-serif);
    font-size: 14px;
    font-weight: 400;
    font-style: italic;
    line-height: 1.5;
    color: var(--nd-caption);
}

/* ── Source box ── */
.nd-source {
    margin-top: var(--nd-block-gap);
    background: var(--nd-grey-100);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.nd-source__title {
    font-family: var(--nd-font);
    font-size: 18px;
    font-weight: 500;
    line-height: 1.35;
    color: #000;
    margin: 0;
}

.nd-source__text {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--nd-grey-text);
    margin: 0;
}

/* ─────────────────────────────────────────────────────
   RESPONSIVE — TABLET & MOBILE  (≤ 1023 px)
───────────────────────────────────────────────────── */
@media (max-width: 1023px) {

    /* Inner container side padding */
    .nd-hero__inner,
    .nd-body__inner {
        padding: 0 var(--nd-side-px-mb);
    }

    /* Article col: full width */
    .nd-hero__col,
    .nd-body__col {
        max-width: 100%;
    }

    /* Hero */
    .nd-hero {
        padding-top: 48px;
    }

    .nd-hero__title {
        font-size: 32px;
        line-height: 1.2;
        margin-bottom: 24px;
    }

    /* Meta row: single-line, 40px tall */
    .nd-hero__meta {
        align-items: center;
        gap: 16px;
        min-height: 40px;
    }

    /* Date: hide label, show only value */
    .nd-hero__date-group {
        flex-direction: row;
        align-items: center;
        gap: 0;
    }

    .nd-hero__date-label {
        display: none;
    }

    .nd-hero__date-value {
        font-size: 16px;
    }

    /* Share: hide label + icons, show mobile button */
    .nd-hero__share {
        flex-direction: row;
        align-items: center;
        gap: 0;
    }

    .nd-hero__share-label,
    .nd-hero__share-icons {
        display: none;
    }

    .nd-hero__share-btn-mb {
        display: flex;
    }

    /* Divider */
    .nd-hero__divider {
        margin-top: 24px;
    }

    /* Body */
    .nd-body {
        padding: 24px 0 48px;
    }

    /* Block gaps */
    .nd-body__para + .nd-body__para {
        margin-top: var(--nd-block-gap-mb);
    }

    .nd-figure {
        margin-top: var(--nd-block-gap-mb);
    }

        .nd-figure + .nd-body__para,
        .nd-body__para + .nd-figure,
        .nd-figure + .nd-figure {
            margin-top: var(--nd-block-gap-mb);
        }

    .nd-source {
        margin-top: var(--nd-block-gap-mb);
        gap: 16px;
    }

    .nd-source__title {
        font-size: 16px;
    }
}

/* ─────────────────────────────────────────────────────
   COPY-LINK TOAST FEEDBACK
───────────────────────────────────────────────────── */
.nd-copy-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: #333;
    color: #fff;
    font-family: var(--nd-font);
    font-size: 14px;
    padding: 10px 20px;
    border-radius: 4px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 9999;
    white-space: nowrap;
}

    .nd-copy-toast.is-visible {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }

/* ─────────────────────────────────────────────────────
   STICKY TITLE BAR
   – appears below the fixed header on mobile and desktop
     when the article title scrolls out of view
───────────────────────────────────────────────────── */
.nd-sticky-title {
    display: none;
}

.nd-sticky-title__content {
    max-width: calc(var(--nd-inner-max) + var(--nd-side-px) * 2);
    padding: 10px;
}

.nd-sticky-title__back-btn {
    align-items: center;
    justify-content: center;
    background: var(--nd-blue);
    transition: background 0.2s ease;
    padding: 10px 16px;
    position: absolute;
    left: var(--nd-side-px);
    top: 50%;
    transform: translateY(-50%);
    width: 89px;
    height: 56px;
}

.nd-sticky-title__text {
    font-family: var(--nd-font);
    font-size: 18px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--nd-blue);
    text-transform: uppercase;
    pointer-events: none;
}

@media (max-width: 1023px) {
    .nd-sticky-title {
        display: block;
        position: fixed;
        top: var(--mp-nav-h);
        left: 0;
        right: 0;
        z-index: 890; /* below header (900) */
        background: #fff;
        border-bottom: 1px solid var(--nd-grey-300);
        font-family: var(--nd-font);
        font-size: 14px;
        font-weight: 500;
        line-height: 1.4;
        color: var(--nd-blue);
        text-transform: uppercase;
        opacity: 0;
        transform: translateY(-100%);
        transition: opacity 0.3s ease, transform 0.3s ease;
        pointer-events: none;
    }

        .nd-sticky-title.is-visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
}

@media (min-width: 1024px) {
    .nd-sticky-title {
        display: block;
        position: fixed;
        top: calc(var(--mp-topbar-h) + var(--mp-nav-h));
        left: 0;
        right: 0;
        z-index: 890;
        background: #fff;
        border-bottom: 1px solid var(--nd-grey-300);
        font-family: var(--nd-font);
        font-size: 14px;
        font-weight: 500;
        line-height: 1.4;
        color: var(--nd-blue);
        text-transform: uppercase;
        opacity: 0;
        transform: translateY(-100%);
        transition: opacity 0.3s ease, transform 0.3s ease;
        pointer-events: none;
        padding: 0;
    }

        .nd-sticky-title.is-visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }
}

/* ─────────────────────────────────────────────────────
   RELATED NEWS SECTION
───────────────────────────────────────────────────── */
.nd-related {
    background: var(--nd-grey-100);
    padding: 80px 0;
}

/*
 * Inner container uses CSS grid-template-areas so the
 * single "Xem tất cả" button can live in the header row
 * on desktop, yet reflow below the card grid on mobile.
 */
.nd-related__inner {
    max-width: calc(var(--nd-inner-max) + var(--nd-side-px) * 2);
    margin: 0 auto;
    padding: 0 var(--nd-side-px);
    display: grid;
    grid-template-areas:
        "title  btn"
        "grid   grid";
    grid-template-columns: 1fr auto;
    row-gap: 24px;
    align-items: center;
}

/* ── Section title ── */
.nd-related__header {
    grid-area: title;
    align-self: center;
}

.nd-related__title {
    font-family: var(--nd-font);
    font-size: 32px;
    font-weight: 600;
    line-height: 1.2;
    color: #000;
    margin: 0;
}

/* ── "Xem tất cả tin tức" button ── */
.nd-related__view-all {
    grid-area: btn;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    height: 56px;
    background: var(--nd-blue);
    color: #fff;
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    white-space: nowrap;
    text-transform: uppercase;
    transition: background 0.3s ease, color 0.3s ease;
}

    .nd-related__view-all:hover,
    .nd-related__view-all:focus {
        background: #ffffff;
        color: var(--nd-blue);
    }

/* Arrow container – two-icon slide animation */
.nd-related__arrow {
    display: inline-flex;
    align-items: center;
    width: 24px;
    height: 24px;
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
}

.nd-related__arrow-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 16px;
    transform: translate(-50%, -50%) rotate(-45deg);
    transition: transform 0.3s ease, stroke 0.3s ease;
    flex-shrink: 0;
}

.nd-related__arrow-icon--2 {
    transform: translate(calc(-50% - 19px), calc(-50% + 19px)) rotate(-45deg);
}

.nd-related__view-all:hover .nd-related__arrow-icon:not(.nd-related__arrow-icon--2) {
    transform: translate(calc(-50% + 19px), calc(-50% - 19px)) rotate(-45deg);
    stroke: var(--nd-blue);
}

.nd-related__view-all:hover .nd-related__arrow-icon--2 {
    transform: translate(-50%, -50%) rotate(-45deg);
}

    .nd-related__view-all:hover .nd-related__arrow-icon--2 path {
        stroke: var(--nd-blue);
    }

/* ── 3-column card grid ── */
.nd-related__grid {
    grid-area: grid;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

/* ── Individual card ── */
.nd-related-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.nd-related-card__img-wrap {
    position: relative;
    width: 100%;
    aspect-ratio: 427 / 327;
    overflow: hidden;
    flex-shrink: 0;
}

.nd-related-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Dark overlay — fades in on hover (desktop) */
.nd-related-card__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
}

/* Centered blue arrow — hidden by default, fades in on hover (desktop) */
.nd-related-card__arrow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 56px;
    height: 56px;
    background: var(--nd-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.35s ease;
}

.nd-related-card .nd-related-card__arrow svg {
    transform: rotate(-45deg);
}

@media (min-width: 1024px) {
    .nd-related-card:hover .nd-related-card__overlay {
        opacity: 1;
    }

    .nd-related-card:hover .nd-related-card__arrow {
        opacity: 1;
    }
}

/* Card body */
.nd-related-card__body {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 24px;
    flex: 1;
}

/* Meta row: tag (left) + date (right) */
.nd-related-card__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.nd-related-card__tag {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    color: var(--nd-blue);
}

.nd-related-card__date {
    font-family: var(--nd-font);
    font-size: 12px;
    font-weight: 300;
    line-height: 1.5;
    color: var(--nd-grey-dark);
    white-space: nowrap;
}

.nd-related-card__title {
    font-family: var(--nd-font);
    font-size: 16px;
    font-weight: 500;
    line-height: 1.4;
    color: var(--nd-grey-dark);
    margin: 0;
}

/* ─────────────────────────────────────────────────────
   RELATED NEWS – MOBILE / TABLET  (≤ 1023 px)
───────────────────────────────────────────────────── */
@media (max-width: 1023px) {
    .nd-related {
        padding: 48px 0;
    }

    /* Reorder: title → card list → view-all button */
    .nd-related__inner {
        padding: 0 var(--nd-side-px-mb);
        grid-template-areas:
            "title"
            "grid"
            "btn";
        grid-template-columns: 1fr;
        row-gap: 0;
    }

    /* Header: title with border-bottom, 24 px breathing room below */
    .nd-related__header {
        padding-bottom: 24px;
        border-bottom: 1px solid var(--nd-grey-300);
        margin-bottom: 24px;
    }

    .nd-related__title {
        font-size: 24px;
        font-weight: 700;
        line-height: 1.25;
    }

    /* Button: left-aligned, below the grid */
    .nd-related__view-all {
        justify-self: start;
        margin-top: 32px;
        height: auto;
        padding: 12px 16px;
        gap: 8px;
    }

    /* Grid: single-column list */
    .nd-related__grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* Card: horizontal layout – image left (196 px), title right */
    .nd-related-card {
        flex-direction: row;
        align-items: flex-start;
        gap: 16px;
        padding-bottom: 16px;
    }

        /* Divider between items */
        .nd-related-card:not(:last-child) {
            border-bottom: 1px solid var(--nd-grey-300);
            margin-bottom: 16px;
        }

    .nd-related-card__img-wrap {
        width: 196px;
        flex-shrink: 0;
        aspect-ratio: 196 / 147;
    }

    /* Hide decorative arrow overlay on mobile */
    .nd-related-card__arrow {
        display: none;
    }

    /* Body: side-by-side with image, no top padding */
    .nd-related-card__body {
        padding-top: 0;
        gap: 0;
        flex: 1;
    }

    /* Hide tag / date on mobile (horizontal layout shows title only) */
    .nd-related-card__meta {
        display: none;
    }
}