/* DTT article archive -----------------------------------------------------
 * Purpose-built editorial archive UI for /bai-viet/.
 * Keep this file scoped to the archive classes so article detail pages remain
 * untouched.
 */

.dtt-article-archive-page,
.dtt-article-archive-page * {
    box-sizing: border-box;
}

.dtt-article-archive-page {
    --dtt-article-ink: #201917;
    --dtt-article-muted: #746963;
    --dtt-article-border: rgba(82, 69, 58, .12);
    --dtt-article-purple: #7c5df6;
    --dtt-article-purple-deep: #5b3dd8;
    --dtt-article-orange: #f56a1f;
    --dtt-article-paper: #fffdf9;
    width: min(1480px, calc(100% - 32px));
    margin: 0 auto;
    padding: clamp(26px, 3.8vw, 54px) 0 clamp(84px, 8vw, 124px);
    color: var(--dtt-article-ink);
}

.dtt-article-archive__hero {
    position: relative;
    overflow: hidden;
    margin: 0 0 clamp(32px, 4vw, 54px);
    padding: clamp(28px, 4vw, 54px);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 36px;
    background:
        radial-gradient(circle at 84% 18%, rgba(124, 93, 246, .30), transparent 26rem),
        radial-gradient(circle at 8% 88%, rgba(245, 106, 31, .18), transparent 28rem),
        linear-gradient(135deg, #171219 0%, #241a28 58%, #17151d 100%);
    box-shadow: 0 32px 82px rgba(35, 24, 31, .17);
    color: #fff;
    isolation: isolate;
}

.dtt-article-archive__hero::before {
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
    background-size: 38px 38px;
    content: "";
    opacity: .52;
    -webkit-mask-image: linear-gradient(90deg, #000, rgba(0,0,0,.35) 58%, transparent);
    mask-image: linear-gradient(90deg, #000, rgba(0,0,0,.35) 58%, transparent);
}

.dtt-article-archive__breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 28px;
    padding: 7px 12px;
    border: 1px solid rgba(255, 255, 255, .10);
    border-radius: 999px;
    background: rgba(255, 255, 255, .055);
    color: rgba(255, 255, 255, .55);
    font-size: 11px;
    font-weight: 750;
    line-height: 1;
    backdrop-filter: blur(10px);
}

.dtt-article-archive__breadcrumb a {
    color: #ffd0b2;
    text-decoration: none;
}

.dtt-article-archive__breadcrumb a:hover,
.dtt-article-archive__breadcrumb a:focus-visible {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.dtt-article-hero__layout {
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr);
    gap: clamp(34px, 5vw, 74px);
    align-items: center;
}

.dtt-article-hero__intro {
    min-width: 0;
}

.dtt-article-hero__eyebrow,
.dtt-article-archive__kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #ff9d66;
    font-size: 11px;
    font-weight: 850;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.dtt-article-hero__eyebrow {
    margin-bottom: 15px;
}

.dtt-article-hero__eyebrow::before,
.dtt-article-archive__kicker::before {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 4px rgba(245, 106, 31, .13);
    content: "";
}

.dtt-article-archive__title {
    max-width: 760px;
    margin: 0;
    color: #fff;
    font-size: clamp(48px, 6vw, 82px);
    font-weight: 900;
    letter-spacing: -.066em;
    line-height: .96;
    text-wrap: balance;
}

.dtt-article-archive__title-accent {
    color: transparent;
    background: linear-gradient(92deg, #ff9a60 0%, #a994ff 58%, #d6ccff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.dtt-article-archive__intro {
    max-width: 64ch;
    margin: 20px 0 0;
    color: rgba(255, 255, 255, .66);
    font-size: clamp(15px, 1.25vw, 18px);
    line-height: 1.72;
}

.dtt-article-hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 25px;
}

.dtt-article-hero__stat {
    display: inline-flex;
    align-items: baseline;
    gap: 8px;
    min-height: 46px;
    padding: 10px 14px;
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 14px;
    background: rgba(255,255,255,.055);
    backdrop-filter: blur(10px);
}

.dtt-article-hero__stat strong {
    color: #fff;
    font-size: 19px;
    font-weight: 900;
    letter-spacing: -.03em;
}

.dtt-article-hero__stat span {
    color: rgba(255,255,255,.52);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.dtt-article-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.dtt-article-hero__button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 850;
    text-decoration: none;
    transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
}

.dtt-article-hero__button--primary {
    color: #24161a;
    background: #fff;
    box-shadow: 0 14px 28px rgba(0,0,0,.17);
}

.dtt-article-hero__button--primary:hover,
.dtt-article-hero__button--primary:focus-visible {
    color: #24161a;
    transform: translateY(-2px);
    box-shadow: 0 18px 34px rgba(0,0,0,.22);
}

.dtt-article-hero__button--ghost {
    border-color: rgba(255,255,255,.12);
    background: rgba(255,255,255,.055);
    color: rgba(255,255,255,.78);
}

.dtt-article-hero__button--ghost:hover,
.dtt-article-hero__button--ghost:focus-visible {
    border-color: rgba(255,255,255,.28);
    background: rgba(255,255,255,.10);
    color: #fff;
}

.dtt-article-hero__topics {
    min-width: 0;
    padding: clamp(18px, 2vw, 24px);
    border: 1px solid rgba(255,255,255,.09);
    border-radius: 24px;
    background: rgba(255,255,255,.045);
    box-shadow: 0 22px 46px rgba(0,0,0,.13);
    backdrop-filter: blur(18px);
}

.dtt-article-hero__topics-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 12px;
}

.dtt-article-hero__topics-kicker {
    color: #fff;
    font-size: 12px;
    font-weight: 850;
    letter-spacing: .04em;
}

.dtt-article-hero__topics-note {
    color: rgba(255,255,255,.40);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.dtt-article-hero__topics-grid {
    display: grid;
    gap: 7px;
}

.dtt-article-hero__topic {
    display: grid;
    grid-template-columns: 30px minmax(0,1fr) 20px;
    gap: 11px;
    align-items: center;
    min-width: 0;
    padding: 11px 12px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: inherit;
    text-decoration: none;
    transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.dtt-article-hero__topic:hover,
.dtt-article-hero__topic:focus-visible {
    border-color: rgba(255,255,255,.10);
    background: rgba(255,255,255,.075);
    transform: translateX(3px);
}

.dtt-article-hero__topic-index {
    color: #ff9960;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .08em;
}

.dtt-article-hero__topic-copy {
    display: grid;
    min-width: 0;
    gap: 2px;
}

.dtt-article-hero__topic-copy strong {
    overflow: hidden;
    color: #fff;
    font-size: 13px;
    font-weight: 820;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dtt-article-hero__topic-copy span {
    color: rgba(255,255,255,.43);
    font-size: 10px;
    font-weight: 700;
}

.dtt-article-hero__topic-arrow {
    color: rgba(255,255,255,.30);
    font-size: 15px;
    transition: color .2s ease, transform .2s ease;
}

.dtt-article-hero__topic:hover .dtt-article-hero__topic-arrow {
    color: #fff;
    transform: translate(2px,-2px);
}

.dtt-article-archive__main {
    scroll-margin-top: 86px;
}

.dtt-article-archive__list-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 18px;
}

.dtt-article-archive__list-title {
    margin: 7px 0 0;
    color: var(--dtt-article-ink);
    font-size: clamp(28px, 3vw, 42px);
    font-weight: 900;
    letter-spacing: -.045em;
    line-height: 1.05;
}

.dtt-article-archive__list-intro {
    margin: 9px 0 0;
    color: var(--dtt-article-muted);
    font-size: 13px;
    line-height: 1.6;
}

.dtt-article-archive__list-count {
    flex: 0 0 auto;
    margin-bottom: 5px;
    padding: 7px 11px;
    border: 1px solid var(--dtt-article-border);
    border-radius: 999px;
    background: rgba(255,255,255,.66);
    color: #776d68;
    font-size: 10px;
    font-weight: 850;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.dtt-article-archive__filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 24px;
    padding: 13px;
    border: 1px solid var(--dtt-article-border);
    border-radius: 18px;
    background: rgba(255,255,255,.68);
    box-shadow: 0 10px 30px rgba(45,34,28,.035);
    backdrop-filter: blur(14px);
}

.dtt-article-archive__filter {
    display: inline-flex;
    min-height: 36px;
    align-items: center;
    gap: 7px;
    padding: 7px 11px;
    border: 1px solid transparent;
    border-radius: 999px;
    color: #655b56;
    font-size: 11px;
    font-weight: 800;
    text-decoration: none;
    transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.dtt-article-archive__filter span {
    color: #9f938c;
    font-size: 9px;
}

.dtt-article-archive__filter:hover,
.dtt-article-archive__filter:focus-visible {
    border-color: rgba(124,93,246,.16);
    background: #f6f2ff;
    color: #5d44c9;
}

.dtt-article-archive__filter.is-active {
    background: #211920;
    color: #fff;
}

.dtt-article-archive__filter.is-active span {
    color: rgba(255,255,255,.6);
}

.dtt-article-archive__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
}

.dtt-article-archive-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--dtt-article-border);
    border-radius: 22px;
    background: rgba(255,255,255,.84);
    box-shadow: 0 10px 30px rgba(40,31,25,.05);
    transition: transform .27s cubic-bezier(.2,.8,.2,1), box-shadow .27s ease, border-color .27s ease;
}

.dtt-article-archive-card:hover {
    border-color: rgba(124,93,246,.20);
    box-shadow: 0 24px 50px rgba(54,42,80,.10);
    transform: translateY(-6px);
}

.dtt-article-archive-card__thumb {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    background: #ece7e3;
}

.dtt-article-archive-card__thumb::after {
    position: absolute;
    inset: auto 0 0;
    height: 36%;
    background: linear-gradient(180deg, transparent, rgba(24,18,20,.12));
    content: "";
    pointer-events: none;
}

.dtt-article-archive-card__thumb img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s cubic-bezier(.2,.8,.2,1);
}

.dtt-article-archive-card:hover .dtt-article-archive-card__thumb img {
    transform: scale(1.035);
}

.dtt-article-archive-card__body {
    display: flex;
    min-width: 0;
    flex: 1;
    flex-direction: column;
    padding: 18px 19px 19px;
}

.dtt-article-archive-card__meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    color: #998e87;
    font-size: 10px;
    font-weight: 750;
}

.dtt-article-archive-card__category {
    display: inline-flex;
    align-items: center;
    min-height: 25px;
    padding: 4px 8px;
    border-radius: 999px;
    background: #f3efff;
    color: #694fd7;
    font-size: 9px;
    font-weight: 850;
    letter-spacing: .035em;
    text-decoration: none;
    text-transform: uppercase;
}

.dtt-article-archive-card__category:hover,
.dtt-article-archive-card__category:focus-visible {
    background: #e9e1ff;
    color: #5037b8;
}

.dtt-article-archive-card__title {
    min-width: 0;
    margin: 0;
    font-size: clamp(18px, 1.55vw, 22px);
    font-weight: 900;
    letter-spacing: -.028em;
    line-height: 1.35;
}

.dtt-article-archive-card__title a {
    display: -webkit-box;
    overflow: hidden;
    color: #241d1a;
    text-decoration: none;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.dtt-article-archive-card__title a:hover,
.dtt-article-archive-card__title a:focus-visible {
    color: #644bd0;
}

.dtt-article-archive-card__excerpt {
    display: -webkit-box;
    overflow: hidden;
    margin: 10px 0 18px;
    color: #786e68;
    font-size: 13px;
    line-height: 1.67;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.dtt-article-archive-card__read {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: fit-content;
    margin-top: auto;
    color: #5f48c7;
    font-size: 11px;
    font-weight: 900;
    text-decoration: none;
}

.dtt-article-archive-card__read span {
    transition: transform .2s ease;
}

.dtt-article-archive-card__read:hover span,
.dtt-article-archive-card__read:focus-visible span {
    transform: translateX(3px);
}

.dtt-article-archive__pagination {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 7px;
    margin-top: 40px;
}

.dtt-article-archive__pagination a,
.dtt-article-archive__pagination span {
    display: inline-flex;
    min-width: 40px;
    min-height: 40px;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    border: 1px solid var(--dtt-article-border);
    border-radius: 11px;
    background: rgba(255,255,255,.82);
    color: #665c57;
    font-size: 11px;
    font-weight: 850;
    text-decoration: none;
}

.dtt-article-archive__pagination a:hover,
.dtt-article-archive__pagination a:focus-visible,
.dtt-article-archive__pagination .current {
    border-color: #211920;
    background: #211920;
    color: #fff;
}

.dtt-article-archive__pagination .dots {
    border-color: transparent;
    background: transparent;
}

.dtt-article-archive__empty {
    padding: 54px 20px;
    border: 1px dashed rgba(82,69,58,.20);
    border-radius: 22px;
    background: rgba(255,255,255,.55);
    color: var(--dtt-article-muted);
    text-align: center;
}

@media (max-width: 1120px) {
    .dtt-article-hero__layout {
        grid-template-columns: minmax(0, 1fr) 360px;
        gap: 30px;
    }

    .dtt-article-archive__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .dtt-article-hero__layout {
        grid-template-columns: 1fr;
    }

    .dtt-article-hero__topics {
        max-width: 720px;
    }
}

@media (max-width: 768px) {
    .dtt-article-archive-page {
        width: calc(100% - 20px);
        padding-top: 22px;
        padding-bottom: 72px;
    }

    .dtt-article-archive__hero {
        padding: 24px 22px 26px;
        border-radius: 28px;
    }

    .dtt-article-archive__breadcrumb {
        margin-bottom: 22px;
    }

    .dtt-article-archive__title {
        font-size: clamp(42px, 13vw, 58px);
    }

    .dtt-article-archive__intro {
        margin-top: 16px;
        font-size: 14px;
        line-height: 1.68;
    }

    .dtt-article-hero__topics {
        margin-top: 24px;
        padding: 14px;
        border-radius: 20px;
    }

    .dtt-article-archive__list-header {
        align-items: flex-start;
    }

    .dtt-article-archive__list-count {
        margin-top: 25px;
    }

    .dtt-article-archive__filters {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: 10px;
        scroll-snap-type: x proximity;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .dtt-article-archive__filters::-webkit-scrollbar {
        display: none;
    }

    .dtt-article-archive__filter {
        flex: 0 0 auto;
        scroll-snap-align: start;
        white-space: nowrap;
    }
}

@media (max-width: 620px) {
    .dtt-article-hero__stats {
        display: grid;
        grid-template-columns: repeat(2, minmax(0,1fr));
    }

    .dtt-article-hero__stat {
        display: grid;
        gap: 2px;
        align-content: center;
    }

    .dtt-article-hero__stat span {
        line-height: 1.3;
    }

    .dtt-article-hero__actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .dtt-article-hero__button {
        width: 100%;
    }

    .dtt-article-hero__topics-head {
        align-items: flex-start;
    }

    .dtt-article-hero__topics-note {
        max-width: 100px;
        text-align: right;
    }

    .dtt-article-archive__list-header {
        display: block;
    }

    .dtt-article-archive__list-count {
        display: inline-flex;
        margin-top: 12px;
    }

    .dtt-article-archive__grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 14px;
    }

    .dtt-article-archive-card {
        border-radius: 19px;
    }

    .dtt-article-archive-card__body {
        padding: 15px 16px 17px;
    }

    .dtt-article-archive-card__title {
        font-size: 18px;
    }

    .dtt-article-archive-card__excerpt {
        margin-bottom: 15px;
        -webkit-line-clamp: 2;
    }
}

@media (prefers-reduced-motion: reduce) {
    .dtt-article-archive-page *,
    .dtt-article-archive-page *::before,
    .dtt-article-archive-page *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}