/* ============================================
   Chuyên đề — Tổng quan + Chi tiết
   ============================================ */
body { background: var(--c-paper); }
.cd-wrap { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem 3rem; }
.cd-crumb { font-size: 0.82rem; color: var(--c-ink-soft); padding: 1rem 0 0.4rem; }
.cd-crumb a:hover { color: var(--c-amber-dark); }
.cd-crumb .sep { margin: 0 0.4rem; color: var(--c-line); }

/* ---- overview hero ---- */
.cd-hero { position: relative; overflow: hidden; background: radial-gradient(120% 120% at 85% 20%, rgba(184,131,52,0.1), transparent 55%), var(--c-paper); border-bottom: 1px solid var(--c-line); }
.cd-hero-in { max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem 2.2rem; display: grid; grid-template-columns: 1fr 400px; gap: 2rem; align-items: center; }
.cd-hero-art { border-radius: 12px; overflow: hidden; -webkit-mask-image: radial-gradient(120% 120% at 55% 50%, #000 60%, transparent 96%); mask-image: radial-gradient(120% 120% at 55% 50%, #000 60%, transparent 96%); }
.cd-hero-art img { width: 100%; display: block; }
@media (max-width: 860px) { .cd-hero-in { grid-template-columns: 1fr; } .cd-hero-art { display: none; } }
.cd-hero h1 { font-family: var(--font-serif); font-size: clamp(2rem,4vw,3rem); color: var(--c-ink); }
.cd-hero .lead { color: var(--c-amber-dark); font-size: 1.1rem; margin: 0.3rem 0 0.6rem; }
.cd-hero p { color: var(--c-ink-soft); max-width: 40rem; line-height: 1.7; }
.cd-hero-stats { display: flex; gap: 2rem; margin: 1rem 0; flex-wrap: wrap; }
.cd-hero-stats .s b { font-family: var(--font-serif); font-size: 1.6rem; color: var(--c-ink); }
.cd-hero-stats .s span { color: var(--c-ink-soft); font-size: 0.85rem; display: block; }

.cd-filters { display: flex; flex-wrap: wrap; gap: 0.6rem; background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 0.8rem; margin: 1.2rem 0; }
.cd-filters input, .cd-filters select { border: 1px solid var(--c-line); border-radius: 8px; padding: 0.55rem 0.8rem; font-family: inherit; background: #fff; }
.cd-filters input { flex: 1; min-width: 220px; }

.cd-sec-h { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-serif); color: var(--c-ink); font-size: 1.2rem; margin: 1.6rem 0 1rem; }
.cd-sec-h i { color: var(--c-amber-dark); }
.cd-sec-h .more { margin-left: auto; font-size: 0.82rem; color: var(--c-amber-dark); font-weight: 600; }

/* featured */
.cd-featured { display: grid; grid-template-columns: 320px 1fr; gap: 1.5rem; background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 1.3rem; }
.cd-featured .img { border-radius: 10px; overflow: hidden; background: var(--c-paper-2); min-height: 200px; display: flex; align-items: center; justify-content: center; color: var(--c-amber-dark); font-size: 2rem; }
.cd-featured .img img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.25); }
.cd-badge { display: inline-block; background: var(--c-amber-dark); color: #fff; font-size: 0.7rem; font-weight: 700; padding: 0.2rem 0.6rem; border-radius: 999px; letter-spacing: 0.05em; }
.cd-featured h3 { font-family: var(--font-serif); font-size: 1.5rem; color: var(--c-ink); margin: 0.5rem 0; }
.cd-featured p { color: var(--c-ink-soft); line-height: 1.6; }
.cd-tags { display: flex; gap: 0.4rem; flex-wrap: wrap; margin: 0.7rem 0; }
.cd-tags span { font-size: 0.76rem; background: var(--c-paper-2); color: var(--c-amber-dark); padding: 0.2rem 0.6rem; border-radius: 6px; }
.cd-meta { display: flex; gap: 1.2rem; color: var(--c-ink-soft); font-size: 0.84rem; flex-wrap: wrap; }
.cd-btn { display: inline-flex; align-items: center; gap: 0.4rem; background: var(--c-amber-dark); color: #fff; border-radius: 8px; padding: 0.6rem 1.1rem; font-weight: 600; font-size: 0.85rem; margin-top: 0.8rem; }
.cd-btn:hover { background: var(--c-amber); color: #fff; }

/* theme cards */
.cd-themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 0.9rem; }
.cd-theme { background: #fff; border: 1px solid var(--c-line); border-radius: 12px; padding: 1rem; }
.cd-theme:hover { border-color: var(--c-amber); }
.cd-theme .nm { font-weight: 700; color: var(--c-ink); font-size: 0.92rem; }
.cd-theme .ct { color: var(--c-ink-soft); font-size: 0.8rem; margin-top: 0.3rem; }

/* all topics grid */
.cd-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px,1fr)); gap: 1.2rem; }
.cd-card { background: #fff; border: 1px solid var(--c-line); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; }
.cd-card .img { height: 150px; background: var(--c-paper-2); display: flex; align-items: center; justify-content: center; color: var(--c-amber-dark); font-size: 1.6rem; }
.cd-card .img img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.25); }
.cd-card .body { padding: 1rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.cd-card h4 { font-family: var(--font-serif); font-size: 1.1rem; color: var(--c-ink); }
.cd-card .desc { color: var(--c-ink-soft); font-size: 0.86rem; line-height: 1.5; flex: 1; }
.cd-card .stat { color: var(--c-ink-soft); font-size: 0.8rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.cd-empty { text-align: center; color: var(--c-ink-soft); padding: 2.5rem; }

/* ============ DETAIL ============ */
.cdd-hero { background: radial-gradient(120% 120% at 80% 20%, rgba(184,131,52,0.12), transparent 55%), var(--c-paper); border-bottom: 1px solid var(--c-line); }
.cdd-hero-in { max-width: 1200px; margin: 0 auto; padding: 0.5rem 1.5rem 2rem; display: grid; grid-template-columns: 1fr 360px; gap: 2rem; align-items: center; }
.cdd-hero-art { border-radius: 12px; overflow: hidden; -webkit-mask-image: radial-gradient(120% 120% at 50% 45%, #000 58%, transparent 95%); mask-image: radial-gradient(120% 120% at 50% 45%, #000 58%, transparent 95%); }
.cdd-hero-art img { width: 100%; display: block; }
@media (max-width: 860px) { .cdd-hero-in { grid-template-columns: 1fr; } .cdd-hero-art { display: none; } }
.cdd-hero h1 { font-family: var(--font-serif); font-size: clamp(1.9rem,3.8vw,2.8rem); color: var(--c-ink); max-width: 28rem; line-height: 1.1; }
.cdd-hero .desc { color: var(--c-ink-soft); max-width: 34rem; line-height: 1.7; margin: 0.7rem 0; }
.cdd-hero-stats { display: flex; gap: 1.6rem; flex-wrap: wrap; margin-top: 0.7rem; color: var(--c-ink); }
.cdd-hero-stats .s b { font-family: var(--font-serif); font-size: 1.4rem; display: block; }
.cdd-hero-stats .s span { color: var(--c-ink-soft); font-size: 0.8rem; }

.cdd-grid { display: grid; grid-template-columns: minmax(0,2fr) minmax(0,1fr); gap: 1.5rem; padding-top: 1.5rem; align-items: start; }
.cdd-card { background: #fff; border: 1px solid var(--c-line); border-radius: 14px; padding: 1.4rem; margin-bottom: 1.4rem; }
.cdd-h { display: flex; align-items: center; gap: 0.5rem; font-family: var(--font-serif); text-transform: uppercase; letter-spacing: 0.04em; color: var(--c-ink); font-size: 1.05rem; margin-bottom: 1rem; }
.cdd-h i { color: var(--c-amber-dark); }
.cdd-story p { color: var(--c-ink); line-height: 1.8; margin-bottom: 0.9rem; }
.cdd-quote { border-left: 3px solid var(--c-amber); background: var(--c-paper-2); padding: 0.9rem 1.1rem; font-style: italic; color: var(--c-ink); margin: 1rem 0; border-radius: 0 8px 8px 0; }

.cdd-side-h { font-family: var(--font-serif); text-transform: uppercase; letter-spacing: 0.04em; color: var(--c-ink); font-size: 0.95rem; margin-bottom: 0.8rem; display: flex; align-items: center; gap: 0.4rem; }
.cdd-side-h i { color: var(--c-amber-dark); }
.cdd-info .row { display: flex; justify-content: space-between; gap: 1rem; padding: 0.4rem 0; border-bottom: 1px dashed var(--c-line); font-size: 0.86rem; }
.cdd-info .row .k { color: var(--c-ink-soft); }
.cdd-info .row .v { color: var(--c-ink); text-align: right; }
.cdd-author { display: flex; gap: 0.7rem; align-items: center; padding: 0.5rem 0; }
.cdd-author .av { width: 40px; height: 40px; border-radius: 50%; background: var(--c-paper-2); color: var(--c-amber-dark); display: flex; align-items: center; justify-content: center; flex-shrink: 0; overflow: hidden; }
.cdd-author .av img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.3); }
.cdd-author .nm { font-weight: 600; color: var(--c-ink); font-size: 0.9rem; }
.cdd-author .nm a:hover { color: var(--c-amber-dark); }
.cdd-author .rl { color: var(--c-ink-soft); font-size: 0.78rem; }
.cdd-kw { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.cdd-kw span { font-size: 0.78rem; background: var(--c-paper-2); color: var(--c-amber-dark); padding: 0.25rem 0.65rem; border-radius: 6px; }

.cdd-docs { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px,1fr)); gap: 0.9rem; }
.cdd-doc { text-align: center; }
.cdd-doc .th { height: 120px; border-radius: 8px; overflow: hidden; background: var(--c-paper-2); display: flex; align-items: center; justify-content: center; color: var(--c-amber-dark); font-size: 1.4rem; }
.cdd-doc .th img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.3); }
.cdd-doc .t { font-size: 0.8rem; color: var(--c-ink); margin-top: 0.35rem; line-height: 1.3; }
.cdd-doc .y { font-size: 0.74rem; color: var(--c-ink-soft); }

.cdd-rel { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px,1fr)); gap: 1rem; }
.cdd-rel a { display: block; }
.cdd-rel .th { height: 90px; border-radius: 8px; overflow: hidden; background: var(--c-paper-2); display: flex; align-items: center; justify-content: center; color: var(--c-amber-dark); }
.cdd-rel .th img { width: 100%; height: 100%; object-fit: cover; filter: sepia(0.3); }
.cdd-rel .t { font-size: 0.85rem; color: var(--c-ink); margin-top: 0.3rem; font-weight: 600; }
.cdd-rel .c { font-size: 0.76rem; color: var(--c-ink-soft); }

@media (max-width: 900px) { .cd-featured, .cdd-grid { grid-template-columns: 1fr; } }

/* journey cards */
.cd-journey { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.cd-jcard { background: linear-gradient(160deg, #fff, var(--c-paper-2)); border: 1px solid var(--c-line); border-radius: 12px; padding: 1.1rem; }
.cd-jcard .jno { font-family: var(--font-serif); font-size: 1.4rem; color: var(--c-amber-dark); font-weight: 700; }
.cd-jcard .jt { font-weight: 700; color: var(--c-ink); margin: 0.3rem 0; }
.cd-jcard .jd { color: var(--c-ink-soft); font-size: 0.84rem; line-height: 1.5; }
@media (max-width: 860px){ .cd-journey { grid-template-columns: 1fr 1fr; } }

/* content slices (detail) */
.cdd-slices { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.cdd-slice { border: 1px solid var(--c-line); border-radius: 10px; padding: 0.9rem; background: #fff; }
.cdd-slice .sno { display: inline-block; width: 26px; height: 26px; line-height: 26px; text-align: center; border-radius: 50%; background: var(--c-amber-dark); color: #fff; font-size: 0.78rem; font-weight: 700; margin-bottom: 0.5rem; }
.cdd-slice .st { font-weight: 700; color: var(--c-ink); font-size: 0.9rem; }
.cdd-slice .sd { color: var(--c-ink-soft); font-size: 0.82rem; line-height: 1.5; margin-top: 0.3rem; }
.cdd-slice .sm { margin-top: 0.5rem; color: var(--c-amber-dark); font-size: 0.8rem; }
@media (max-width: 860px){ .cdd-slices { grid-template-columns: 1fr 1fr; } }