/*
 * Shared interior article surface.
 *
 * The novel detail template is the reference language for DTT interiors:
 * mist-blue page field, ink-brown hero, bright action accents and a calm
 * reading surface. This file is intentionally scoped away from the Kiếm Lai
 * Wiki hub, which has its own archival visual system.
 */
.dtt-article-sync {
    --dtt-sync-ink: #201916;
    --dtt-sync-ink-deep: #15110f;
    --dtt-sync-ink-soft: #302521;
    --dtt-sync-orange: #f97316;
    --dtt-sync-orange-dark: #c2410c;
    --dtt-sync-green: #10b981;
    --dtt-sync-purple: #8b5cf6;
    --dtt-sync-blue: #4f46e5;
    --dtt-sync-page: #edf4fa;
    --dtt-sync-paper: #ffffff;
    --dtt-sync-paper-soft: #f8fafc;
    --dtt-sync-line: #e1e8f0;
    --dtt-sync-text: #334155;
    --dtt-sync-muted: #64748b;
    position: relative;
    isolation: isolate;
    overflow: clip;
    padding: 30px 15px 92px;
    background:
        radial-gradient(circle at 8% 0%, rgba(147, 197, 253, .22), transparent 23rem),
        radial-gradient(circle at 94% 16%, rgba(196, 181, 253, .16), transparent 25rem),
        linear-gradient(180deg, #f2f7fb 0%, var(--dtt-sync-page) 100%) !important;
    color: var(--dtt-sync-text);
}

#main-content:has(.dtt-article-sync) {
    background: var(--dtt-sync-page);
}

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

.dtt-article-sync .dtt-single-post__inner {
    width: min(100%, 1250px);
    margin: 0 auto;
}

/* Article hero: the same dark, layered object used by single-truyen. */
.dtt-article-sync .dtt-post-header {
    position: relative;
    z-index: 1;
    overflow: hidden;
    margin: 0 auto 24px;
    padding: clamp(26px, 4vw, 46px) clamp(22px, 5vw, 62px) 34px;
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 16px;
    background:
        radial-gradient(circle at 86% 8%, rgba(249, 115, 22, .19), transparent 18rem),
        radial-gradient(circle at 52% 104%, rgba(139, 92, 246, .17), transparent 24rem),
        linear-gradient(115deg, var(--dtt-sync-ink-deep), var(--dtt-sync-ink-soft) 54%, #191412);
    box-shadow: 0 14px 36px rgba(30, 41, 59, .16);
    color: #fff;
}

.dtt-article-sync .dtt-post-header::before {
    position: absolute;
    top: -150px;
    right: -60px;
    width: 360px;
    height: 360px;
    border: 1px solid rgba(249, 115, 22, .24);
    border-radius: 50%;
    box-shadow: 0 0 0 22px rgba(249, 115, 22, .035), 0 0 0 44px rgba(249, 115, 22, .025);
    content: '';
    pointer-events: none;
}

.dtt-article-sync .dtt-post-header::after {
    position: absolute;
    right: 9%;
    bottom: 0;
    width: 1px;
    height: 72%;
    background: linear-gradient(180deg, transparent, rgba(249, 115, 22, .50), transparent);
    content: '';
    opacity: .65;
    pointer-events: none;
    transform: rotate(23deg);
    transform-origin: bottom center;
}

.dtt-article-sync__topline {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 24px;
}

.dtt-article-sync__back {
    display: inline-flex;
    min-height: 34px;
    align-items: center;
    gap: 8px;
    padding: 7px 12px;
    border: 1px solid rgba(255, 255, 255, .20);
    border-radius: 8px;
    background: rgba(255, 255, 255, .07);
    color: rgba(255, 255, 255, .84);
    font-size: 12px;
    font-weight: 800;
    text-decoration: none;
    transition: background-color .2s ease, border-color .2s ease, transform .2s ease;
}

.dtt-article-sync__back:hover,
.dtt-article-sync__back:focus-visible {
    border-color: rgba(249, 115, 22, .62);
    background: rgba(249, 115, 22, .18);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}

.dtt-article-sync__status {
    color: rgba(255, 255, 255, .52);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.dtt-article-sync .dtt-post-kicker {
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    margin: 0 0 14px;
    padding: 6px 12px;
    border: 1px solid rgba(167, 139, 250, .58);
    border-radius: 999px;
    background: rgba(99, 102, 241, .30);
    color: #ede9fe;
    font-size: 11px;
    font-weight: 850;
    letter-spacing: .08em;
    line-height: 1;
    text-transform: uppercase;
}

.dtt-article-sync .dtt-post-kicker::before {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #c4b5fd;
    box-shadow: 0 0 0 3px rgba(196, 181, 253, .12);
    content: '';
}

.dtt-article-sync .dtt-post-kicker a {
    color: inherit;
    text-decoration: none;
}

.dtt-article-sync .dtt-post-kicker a:hover,
.dtt-article-sync .dtt-post-kicker a:focus-visible {
    color: #fff;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.dtt-article-sync .dtt-post-title {
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0;
    color: #fff;
    font-family: 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;
    font-size: clamp(32px, 5vw, 62px);
    font-weight: 850;
    letter-spacing: -.045em;
    line-height: 1.08;
    text-wrap: balance;
    text-shadow: 0 2px 12px rgba(0, 0, 0, .24);
}

.dtt-article-sync .dtt-post-meta {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    margin-top: 22px;
    color: rgba(255, 255, 255, .62);
    font-family: 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;
    font-size: 13px;
}

.dtt-article-sync .dtt-post-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.dtt-article-sync .dtt-post-meta span + span::before {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .34);
    content: '';
}

.dtt-article-sync .dtt-post-meta a {
    color: #fed7aa;
    font-weight: 800;
}

.dtt-article-sync .dtt-article-layout {
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 30px;
    align-items: start;
    margin: 0 auto;
}

.dtt-article-sync .dtt-toc-rail {
    position: sticky;
    top: 96px;
    align-self: start;
    min-width: 0;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] {
    width: 100%;
    max-height: calc(100vh - 124px);
    box-sizing: border-box;
    overflow-y: auto;
    margin: 0;
    padding: 18px 16px 20px;
    border: 1px solid #dbe5ef;
    border-radius: 14px;
    background: rgba(255, 255, 255, .86);
    box-shadow: 0 10px 26px rgba(30, 41, 59, .08);
    scrollbar-color: #c4b5fd transparent;
    scrollbar-width: thin;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] h2 {
    margin: 0 0 12px;
    color: #172033;
    font-size: 18px;
    font-weight: 850;
    line-height: 1.3;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] ol {
    margin: 0;
    padding-left: 22px;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] li {
    color: #64748b;
    font-size: 13px;
    line-height: 1.45;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] li + li { margin-top: 5px; }

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] a {
    color: inherit;
    text-decoration: none;
    transition: color .18s ease, background-color .18s ease;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] a:hover,
.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] a:focus-visible {
    color: var(--dtt-sync-blue);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.dtt-article-sync .dtt-post-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--dtt-sync-line);
    border-radius: 16px;
    background: var(--dtt-sync-paper);
    box-shadow: 0 14px 34px rgba(30, 41, 59, .09);
}

.dtt-article-sync .dtt-post-featured {
    margin: 0;
    padding: 20px 34px 0;
    background: var(--dtt-sync-paper);
}

.dtt-article-sync .dtt-post-featured img {
    width: 100%;
    max-height: 420px;
    border-radius: 12px;
    box-shadow: 0 10px 26px rgba(30, 41, 59, .14);
    object-fit: cover;
}

.dtt-article-sync .dtt-post-content {
    padding: clamp(28px, 5vw, 54px) clamp(22px, 5vw, 56px);
    color: var(--dtt-sync-text);
    font-family: 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;
    font-size: clamp(17px, 1.45vw, 19px);
    line-height: 1.88;
}

.dtt-article-sync .dtt-post-content > *:first-child { margin-top: 0; }
.dtt-article-sync .dtt-post-content > *:last-child { margin-bottom: 0; }

.dtt-article-sync .dtt-post-content > p:first-child {
    margin-bottom: 1.65em;
    padding: 20px 24px;
    border-left: 4px solid var(--dtt-sync-orange);
    border-radius: 0 12px 12px 0;
    background: #fff7ed;
    color: #3b2a21;
    font-size: 1.04em;
}

.dtt-article-sync .dtt-post-content p { margin: 0 0 1.35em; }

.dtt-article-sync .dtt-post-content h2,
.dtt-article-sync .dtt-post-content h3,
.dtt-article-sync .dtt-post-content h4 {
    position: relative;
    margin: 2em 0 .7em;
    color: #172033;
    font-family: 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;
    font-weight: 850;
    letter-spacing: -.025em;
    line-height: 1.32;
}

.dtt-article-sync .dtt-post-content h2 {
    padding-bottom: 11px;
    border-bottom: 1px solid var(--dtt-sync-line);
    font-size: clamp(24px, 3vw, 34px);
}

.dtt-article-sync .dtt-post-content h2::before {
    display: inline-block;
    width: 6px;
    height: 22px;
    margin: 0 11px 0 0;
    border-radius: 99px;
    background: var(--dtt-sync-orange);
    content: '';
    vertical-align: -2px;
}

.dtt-article-sync .dtt-post-content h3 { font-size: clamp(20px, 2.4vw, 27px); }
.dtt-article-sync .dtt-post-content h4 { font-size: 1.08em; }

.dtt-article-sync .dtt-post-content a {
    color: var(--dtt-sync-blue);
    font-weight: 700;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

.dtt-article-sync .dtt-post-content a:hover { color: var(--dtt-sync-orange-dark); }

.dtt-article-sync .dtt-post-content strong { color: #172033; font-weight: 850; }

.dtt-article-sync .dtt-post-content blockquote {
    margin: 1.7em 0;
    padding: 18px 22px;
    border: 1px solid #dbeafe;
    border-left: 4px solid var(--dtt-sync-blue);
    border-radius: 0 12px 12px 0;
    background: #f8fbff;
    color: #475569;
}

.dtt-article-sync .dtt-post-content table {
    width: 100%;
    margin: 1.5em 0;
    border: 1px solid var(--dtt-sync-line);
    border-collapse: separate;
    border-spacing: 0;
    border-radius: 12px;
    overflow: hidden;
}

.dtt-article-sync .dtt-post-content th,
.dtt-article-sync .dtt-post-content td {
    padding: 12px 14px;
    border: 0;
    border-bottom: 1px solid var(--dtt-sync-line);
    text-align: left;
    vertical-align: top;
}

.dtt-article-sync .dtt-post-content th {
    background: var(--dtt-sync-ink-soft);
    color: #fff;
    font-size: .82em;
    font-weight: 850;
}

.dtt-article-sync .dtt-post-content tbody tr:nth-child(even) td { background: #f8fafc; }
.dtt-article-sync .dtt-post-content tbody tr:last-child td { border-bottom: 0; }

.dtt-article-sync .dtt-post-footer {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 16px;
    padding: 20px clamp(22px, 5vw, 56px) 28px;
    border-top: 1px solid var(--dtt-sync-line);
    color: var(--dtt-sync-muted);
    font-family: 'Be Vietnam Pro', ui-sans-serif, system-ui, sans-serif;
    font-size: 13px;
}

.dtt-article-sync .dtt-post-tags a {
    padding: 6px 11px;
    border: 1px solid #ddd6fe;
    background: #f5f3ff;
    color: #5b21b6;
    font-size: 12px;
    font-weight: 800;
}

.dtt-article-sync .dtt-post-tags a:hover {
    border-color: var(--dtt-sync-purple);
    background: var(--dtt-sync-purple);
    color: #fff;
}

.dtt-article-sync .dtt-related-posts {
    margin-top: 26px;
    padding: 26px;
    border: 1px solid var(--dtt-sync-line);
    border-radius: 16px;
    background: rgba(255, 255, 255, .84);
    box-shadow: 0 12px 28px rgba(30, 41, 59, .06);
}

.dtt-article-sync .dtt-related-title { color: #172033; }
.dtt-article-sync .dtt-related-subtitle { color: var(--dtt-sync-muted); }

@media (max-width: 1199px) {
    .dtt-article-sync .dtt-article-layout {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .dtt-article-sync .dtt-toc-rail {
        position: relative;
        top: auto;
    }

    .dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] {
        max-height: none;
    }
}

@media (max-width: 640px) {
    .dtt-article-sync {
        padding: 16px 10px 74px;
    }

    .dtt-article-sync .dtt-post-header {
        margin-bottom: 16px;
        padding: 22px 18px 24px;
        border-radius: 14px;
    }

    .dtt-article-sync__topline {
        align-items: flex-start;
        flex-direction: column;
        gap: 9px;
        margin-bottom: 19px;
    }

    .dtt-article-sync__status { font-size: 10px; }

    .dtt-article-sync .dtt-post-title {
        font-size: clamp(30px, 9vw, 42px);
        letter-spacing: -.04em;
    }

    .dtt-article-sync .dtt-post-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
        margin-top: 18px;
    }

    .dtt-article-sync .dtt-post-meta span + span::before { display: none; }

    .dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] {
        padding: 14px 13px 16px;
        border-radius: 12px;
    }

    .dtt-article-sync .dtt-post-card { border-radius: 14px; }

    .dtt-article-sync .dtt-post-featured { padding: 12px 12px 0; }
    .dtt-article-sync .dtt-post-featured img { border-radius: 10px; }

    .dtt-article-sync .dtt-post-content {
        padding: 27px 17px 38px;
        font-size: 16px;
        line-height: 1.82;
    }

    .dtt-article-sync .dtt-post-content > p:first-child {
        padding: 16px 17px;
    }

    .dtt-article-sync .dtt-post-content h2 {
        font-size: 25px;
    }

    .dtt-article-sync .dtt-post-content table {
        display: block;
        overflow-x: auto;
        white-space: normal;
    }

    .dtt-article-sync .dtt-post-content th,
    .dtt-article-sync .dtt-post-content td {
        min-width: 145px;
        padding: 11px 12px;
    }

    .dtt-article-sync .dtt-related-posts {
        margin-top: 16px;
        padding: 18px 14px;
        border-radius: 14px;
    }
}

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

/*
 * Surface sync for regular article details.
 * Keep the Kiếm Lai Wiki hub scoped to kiem-lai-wiki.css; article pages use
 * the same quiet paper field as their reading surface instead of a cool
 * blue/purple backdrop with unrelated white islands.
 */
:root:has(.dtt-article-sync),
body:has(.dtt-article-sync) {
    background-color: #f3f0ea !important;
    background-image: none !important;
}

#main-content:has(.dtt-article-sync) {
    background: #f3f0ea !important;
}

.dtt-article-sync {
    --dtt-sync-page: #f3f0ea;
    --dtt-sync-paper: #fffdf8;
    --dtt-sync-paper-soft: #faf7f1;
    --dtt-sync-line: #e8dfd2;
    --dtt-sync-text: #403a35;
    --dtt-sync-muted: #7b7269;
    background: linear-gradient(180deg, #f8f6f2 0%, #f3f0ea 100%) !important;
}

.dtt-article-sync::before {
    height: 300px;
    background:
        radial-gradient(circle at 12% 0%, rgba(249, 115, 22, .07), transparent 34%),
        radial-gradient(circle at 88% 6%, rgba(16, 185, 129, .055), transparent 32%);
}

.dtt-article-sync .dtt-post-header {
    background:
        radial-gradient(circle at 88% 5%, rgba(249, 115, 22, .13), transparent 18rem),
        linear-gradient(115deg, #201916, #302521 54%, #211916);
}

.dtt-article-sync .dtt-post-kicker {
    border-color: rgba(251, 146, 60, .55);
    background: rgba(249, 115, 22, .16);
    color: #ffedd5;
}

.dtt-article-sync .dtt-post-kicker::before {
    background: #fdba74;
    box-shadow: 0 0 0 3px rgba(253, 186, 116, .14);
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] {
    border-color: var(--dtt-sync-line);
    background: var(--dtt-sync-paper);
    box-shadow: 0 12px 28px rgba(83, 60, 39, .08);
    scrollbar-color: #d97706 transparent;
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] h2 {
    color: var(--dtt-sync-text);
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] li {
    color: var(--dtt-sync-muted);
}

.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] a:hover,
.dtt-article-sync .dtt-toc-rail nav[aria-label^="Mục lục"] a:focus-visible {
    color: var(--dtt-sync-orange-dark);
}

.dtt-article-sync .dtt-post-card {
    border-color: var(--dtt-sync-line);
    background: var(--dtt-sync-paper);
    box-shadow: 0 20px 48px rgba(83, 60, 39, .10);
}

.dtt-article-sync .dtt-post-card::before {
    display: none;
}

.dtt-article-sync .dtt-post-featured,
.dtt-article-sync .dtt-post-content {
    background: var(--dtt-sync-paper);
}

.dtt-article-sync .dtt-post-content > p:first-child {
    border-left-color: var(--dtt-sync-orange);
    background: #fff6e8;
    color: #44362a;
}

.dtt-article-sync .dtt-related-posts,
.dtt-article-sync .dtt-post-card ~ .comments-area,
.dtt-article-sync #respond {
    border-color: var(--dtt-sync-line);
    background: var(--dtt-sync-paper);
    box-shadow: 0 12px 30px rgba(83, 60, 39, .07);
}