/* DTC Blog Discovery v1.3 — scoped under .dtc-discovery */

/* Reset blog-grid container */
.content.blog-grid.dtc-ready {
    background: none !important;
    padding: 0 !important;
    overflow: visible !important;
}
.content.blog-grid.dtc-ready::before,
.content.blog-grid.dtc-ready::after { display: none !important; }

/* Root tokens */
.dtc-discovery {
    --bg0:     #060d18;
    --bg1:     #0a1525;
    --bg2:     #0f1e30;
    --border:  #1c2e44;
    --accent:  #32b4ff;
    --text0:   #e8f0f8;
    --text1:   #8ba5be;
    --text2:   #4d6a82;
    --c-dtc:   #32b4ff;
    --c-gdtc:  #7c6fff;
    --c-lead:  #c9a040;
    --c-dt:    #1abfa0;
    --c-cm:    #d46040;
    --c-asian: #c06080;
    --r:       6px;
    --r-sm:    4px;
    --bar-h:   34px;
    font-family: inherit;
    color: var(--text0);
}

/* ── Search highlight ──────────────────────────────── */
mark.dtcd-hl {
    background: rgba(50,180,255,.22);
    color: #7dd4ff;
    border-radius: 2px;
    padding: 0 1px;
}

/* ── Series strip ──────────────────────────────────── */
.dtcd-series { margin-bottom: 32px; }
.dtcd-series-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
    flex-wrap: wrap;
}
.dtcd-series-badge {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(50,180,255,.5);
    border-radius: 3px;
    padding: 2px 6px;
    line-height: 1.5;
}
.dtcd-series-name {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text1);
}
.dtcd-series-progress {
    font-size: 0.72rem;
    color: var(--text2);
    margin-left: auto;
    letter-spacing: .02em;
    transition: color .3s;
}
.dtcd-series-progress.has-progress { color: var(--accent); font-weight: 600; }

.dtcd-series-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}
@media (max-width: 900px) { .dtcd-series-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px)  {
    .dtcd-series-row {
        grid-template-columns: repeat(2, minmax(150px,1fr));
        overflow-x: auto;
        padding-bottom: 4px;
    }
}

.dtcd-series-card {
    background: var(--bg1);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: var(--r);
    padding: 14px;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: transform .18s, box-shadow .18s, opacity .18s;
    position: relative;
    overflow: hidden;
}
.dtcd-series-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(50,180,255,.04) 0%, transparent 60%);
    pointer-events: none;
}
.dtcd-series-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(50,180,255,.14);
    text-decoration: none;
    color: inherit;
}
.dtcd-series-card.is-visited { border-left-color: rgba(50,180,255,.3); opacity: .72; }
.dtcd-series-card.is-visited:hover { opacity: 1; }

.dtcd-sc-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.dtcd-sc-sn {
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: .1em;
    color: var(--text2);
}
.dtcd-sc-check { color: var(--accent); opacity: .8; margin-left: 2px; }
.dtcd-sc-mark { width: 28px; height: 28px; flex-shrink: 0; }
.dtcd-sc-thesis {
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text0);
    line-height: 1.45;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}
.dtcd-sc-mins { font-size: 0.62rem; color: var(--text2); }

/* ── Discovery bar ─────────────────────────────────── */
.dtcd-bar {
    position: sticky;
    top: var(--dtcd-top, 0px);
    z-index: 200;
    background: rgba(6,13,24,.88);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    backdrop-filter: blur(16px) saturate(1.4);
    border: 1px solid rgba(28,46,68,.8);
    border-radius: var(--r);
    margin: 0 0 20px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    overflow: hidden;
}

/* Search */
.dtcd-search-wrap {
    position: relative;
    flex: 0 0 auto;
    width: 190px;
    display: flex;
    align-items: center;
}
.dtcd-search-wrap svg {
    position: absolute;
    left: 10px;
    color: var(--text2);
    pointer-events: none;
    flex-shrink: 0;
}
.dtcd-search {
    width: 100%;
    height: var(--bar-h);
    background: rgba(15,30,48,.9);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 0 10px 0 32px;
    font-size: 0.8rem;
    color: var(--text0);
    outline: none;
    transition: border-color .15s;
    box-sizing: border-box;
}
.dtcd-search::placeholder { color: var(--text2); }
.dtcd-search:focus { border-color: var(--accent); }

/* Bar divider */
.dtcd-bar-div {
    width: 1px;
    height: 18px;
    background: var(--border);
    flex-shrink: 0;
}

/* Category chips — horizontal scroll, no wrap */
.dtcd-chips {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    flex-wrap: nowrap;
    padding: 2px 0;
}
.dtcd-chips::-webkit-scrollbar { display: none; }

.dtcd-chip {
    height: var(--bar-h);
    padding: 0 11px;
    border-radius: 20px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text1);
    cursor: pointer;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    transition: border-color .15s, color .15s, transform .1s;
    flex-shrink: 0;
    box-sizing: border-box;
}
.dtcd-chip:hover { border-color: currentColor; transform: translateY(-1px); }
.dtcd-chip.active { font-weight: 700; }

/* Sort */
.dtcd-sort {
    height: var(--bar-h);
    background: rgba(15,30,48,.9);
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 0 10px;
    font-size: 0.78rem;
    color: var(--text1);
    outline: none;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color .15s;
    box-sizing: border-box;
}
.dtcd-sort:focus { border-color: var(--accent); }
option { background: #0a1525; }

/* ── Results meta ──────────────────────────────────── */
.dtcd-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    font-size: 0.75rem;
    color: var(--text2);
    min-height: 22px;
}
.dtcd-clear-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    padding: 3px 9px;
    font-size: 0.72rem;
    color: var(--text2);
    cursor: pointer;
    transition: border-color .12s, color .12s;
}
.dtcd-clear-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Grid & card animations ────────────────────────── */
@keyframes dtcdFadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
.dtcd-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    transition: opacity 160ms ease, transform 160ms ease;
}
.dtcd-grid.is-fading { opacity: 0; transform: translateY(5px); }
.dtcd-grid .dtcd-card { animation: dtcdFadeUp 280ms ease both; }
@media (max-width: 640px) { .dtcd-grid { grid-template-columns: 1fr; } }

/* ── Article card — base ───────────────────────────── */
.dtcd-card {
    background: var(--bg1);
    border: 1px solid var(--border);
    border-radius: var(--r);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    transition: transform .18s, box-shadow .18s;
}
.dtcd-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(0,0,0,.4);
    text-decoration: none;
    color: inherit;
}

/* Top color stripe */
.dtcd-card.is-dtc  { border-top: 2px solid var(--c-dtc); }
.dtcd-card.is-gdtc { border-top: 2px solid var(--c-gdtc); }
.dtcd-card.is-lead { border-top: 2px solid var(--c-lead); }
.dtcd-card.is-dt   { border-top: 2px solid var(--c-dt); }
.dtcd-card.is-cm   { border-top: 2px solid var(--c-cm); }
.dtcd-card.is-asian{ border-top: 2px solid var(--c-asian); }

/* ── Thumbnail ─────────────────────────────────────── */
.dtcd-card-thumb {
    width: 100%;
    height: 148px;
    display: block;
    object-fit: cover;
    object-position: center;
    flex-shrink: 0;
    /* remove top stripe gap when image present */
    margin-top: -2px;
}

/* ── Card body ─────────────────────────────────────── */
.dtcd-card-body {
    display: flex;
    flex: 1;
}
.dtcd-card-inner {
    position: relative;
    padding: 14px 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 7px;
    flex: 1;
    min-width: 0;
}
/* Tint overlay when no image */
.dtcd-card:not(.has-thumb) .dtcd-card-inner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 60px;
    pointer-events: none;
}
.dtcd-card:not(.has-thumb).is-dtc  .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(50,180,255,.07) 0%,transparent 100%); }
.dtcd-card:not(.has-thumb).is-gdtc .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(124,111,255,.07) 0%,transparent 100%); }
.dtcd-card:not(.has-thumb).is-lead .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(201,160,64,.07) 0%,transparent 100%); }
.dtcd-card:not(.has-thumb).is-dt   .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(26,191,160,.07) 0%,transparent 100%); }
.dtcd-card:not(.has-thumb).is-cm   .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(212,96,64,.07) 0%,transparent 100%); }
.dtcd-card:not(.has-thumb).is-asian .dtcd-card-inner::before { background: linear-gradient(180deg,rgba(192,96,128,.07) 0%,transparent 100%); }

/* ── Featured card ─────────────────────────────────── */
.dtcd-card.is-featured {
    grid-column: 1 / -1;
}

/* Featured WITH image: side-by-side layout */
.dtcd-card.is-featured.has-thumb {
    flex-direction: row;
    border-top-width: 0;
    border-left: 3px solid var(--accent);
}
.dtcd-card.is-featured.has-thumb.is-gdtc { border-left-color: var(--c-gdtc); }
.dtcd-card.is-featured.has-thumb.is-lead  { border-left-color: var(--c-lead); }
.dtcd-card.is-featured.has-thumb.is-dt    { border-left-color: var(--c-dt); }
.dtcd-card.is-featured.has-thumb.is-cm    { border-left-color: var(--c-cm); }
.dtcd-card.is-featured.has-thumb.is-asian { border-left-color: var(--c-asian); }

.dtcd-card.is-featured.has-thumb .dtcd-card-thumb {
    width: 40%;
    height: auto;
    min-height: 200px;
    max-height: 280px;
    margin-top: 0;
    border-radius: 0;
    flex-shrink: 0;
    object-position: center;
}
.dtcd-card.is-featured.has-thumb .dtcd-card-body {
    flex-direction: column;
    flex: 1;
}
.dtcd-card.is-featured.has-thumb .dtcd-card-inner {
    padding: 22px 24px 16px;
    flex: 1;
}
.dtcd-card.is-featured.has-thumb .dtcd-card-title { font-size: 1.05rem; -webkit-line-clamp: 2; }
.dtcd-card.is-featured.has-thumb .dtcd-card-excerpt { -webkit-line-clamp: 4; }
.dtcd-card.is-featured.has-thumb .dtcd-card-foot { padding: 10px 24px 16px; }

/* Featured WITHOUT image + DTC: aside panel */
.dtcd-featured-aside {
    width: 172px;
    flex-shrink: 0;
    border-left: 1px solid var(--border);
    background: rgba(50,180,255,.025);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 22px 18px;
    gap: 12px;
    text-align: center;
}
.dtcd-aside-sn {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text2);
}
.dtcd-aside-mark {
    width: 52px;
    height: 52px;
    opacity: .82;
    transition: opacity .18s, transform .18s;
}
.dtcd-card:hover .dtcd-aside-mark { opacity: 1; transform: scale(1.06); }
.dtcd-aside-thesis {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text1);
    line-height: 1.5;
    margin: 0;
}

/* Featured card foot (no-thumb) */
.dtcd-card.is-featured:not(.has-thumb) .dtcd-card-inner { padding: 20px 22px 14px; }
.dtcd-card.is-featured:not(.has-thumb) .dtcd-card-title { font-size: 1.05rem; }
.dtcd-card.is-featured:not(.has-thumb) .dtcd-card-excerpt { -webkit-line-clamp: 3; }
.dtcd-card.is-featured:not(.has-thumb) .dtcd-card-foot { padding: 10px 22px 16px; }

/* Mobile: unstack featured layout */
@media (max-width: 640px) {
    .dtcd-card.is-featured.has-thumb {
        flex-direction: column;
        border-left: none;
        border-top: 2px solid var(--accent);
    }
    .dtcd-card.is-featured.has-thumb .dtcd-card-thumb {
        width: 100%;
        height: 180px;
        min-height: 0;
        max-height: none;
        margin-top: -2px;
    }
    .dtcd-featured-aside {
        width: auto;
        border-left: none;
        border-top: 1px solid var(--border);
        flex-direction: row;
        padding: 14px 18px;
        justify-content: flex-start;
        gap: 14px;
        text-align: left;
    }
    .dtcd-aside-mark { width: 36px; height: 36px; }
    .dtcd-aside-thesis { font-size: 0.7rem; }
}

/* ── Card content ──────────────────────────────────── */
.dtcd-card-cats { display: flex; gap: 5px; flex-wrap: wrap; }
.dtcd-cat-chip {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 2px 7px;
    border-radius: 3px;
    line-height: 1.7;
}
.dtcd-cat-chip.cat-dtc   { background: rgba(50,180,255,.15);  color: var(--c-dtc); }
.dtcd-cat-chip.cat-gdtc  { background: rgba(124,111,255,.15); color: var(--c-gdtc); }
.dtcd-cat-chip.cat-lead  { background: rgba(201,160,64,.15);  color: var(--c-lead); }
.dtcd-cat-chip.cat-dt    { background: rgba(26,191,160,.15);  color: var(--c-dt); }
.dtcd-cat-chip.cat-cm    { background: rgba(212,96,64,.15);   color: var(--c-cm); }
.dtcd-cat-chip.cat-asian { background: rgba(192,96,128,.15);  color: var(--c-asian); }

.dtcd-card-title {
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text0);
    line-height: 1.42;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}
.dtcd-card-excerpt {
    font-size: 0.78rem;
    color: var(--text1);
    line-height: 1.58;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
    margin: 0;
}
.dtcd-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.68rem;
    color: var(--text2);
    padding: 9px 16px 13px;
    border-top: 1px solid var(--border);
}
.dtcd-foot-mins { display: flex; align-items: center; gap: 4px; }

/* No results */
.dtcd-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 16px;
    color: var(--text2);
    font-size: 0.85rem;
}
.dtcd-clear-link { color: var(--accent); cursor: pointer; text-decoration: underline; }