/* KHE: nâng cấp trải nghiệm đọc mô tả khóa học. Chỉ tác động bên trong article.prose. */
article.prose h2[id]{scroll-margin-top:92px}

/* Tóm tắt nhanh (do plugin Scrape chèn đầu bài) */
article.prose .kdl-tldr{margin:0 0 18px;padding:14px 16px 6px;border:1px solid #bfd0e8;border-left:4px solid #173865;border-radius:12px;background:#eaf0f8}
article.prose .kdl-tldr strong{display:block;margin-bottom:6px;font-size:15px;color:#0f2748}
article.prose .kdl-tldr ul{margin:0 0 8px;padding-left:20px}
article.prose .kdl-tldr li{margin:0 0 6px;line-height:1.55;color:#1e293b}

/* Mục lục */
article.prose .kdl-toc{margin:0 0 20px;border:1px solid #e2e8f0;border-radius:12px;background:#f8fafc}
article.prose .kdl-toc>summary{cursor:pointer;list-style:none;padding:12px 16px;font-weight:700;color:#0f172a}
article.prose .kdl-toc>summary::-webkit-details-marker{display:none}
article.prose .kdl-toc>summary::after{content:"▾";float:right;color:#64748b;transition:transform .2s}
article.prose .kdl-toc[open]>summary::after{transform:rotate(180deg)}
article.prose .kdl-toc small{font-weight:500;color:#64748b}
article.prose .kdl-toc ol{margin:0;padding:0 16px 12px 36px;display:grid;gap:6px}
article.prose .kdl-toc a{color:#0f2748;text-decoration:none}
article.prose .kdl-toc a:hover{text-decoration:underline}

/* Accordion (FAQ, danh sách bài) */
article.prose .kdl-acc{margin:0 0 8px;border:1px solid #e2e8f0;border-radius:10px;background:#fff}
article.prose .kdl-acc>summary{cursor:pointer;list-style:none;padding:12px 40px 12px 14px;font-weight:700;font-size:16px;line-height:1.4;color:#0f172a;position:relative}
article.prose .kdl-acc>summary::-webkit-details-marker{display:none}
article.prose .kdl-acc>summary::after{content:"+";position:absolute;right:14px;top:50%;transform:translateY(-50%);font-size:20px;font-weight:500;color:#173865}
article.prose .kdl-acc[open]>summary::after{content:"−"}
article.prose .kdl-acc[open]{border-color:#bfd0e8;background:#fafaff}
article.prose .kdl-acc__body{padding:0 14px 6px}
article.prose .kdl-acc__body>*:last-child{margin-bottom:10px}

/* Thẻ kêu gọi giữa bài */
article.prose .kdl-cta{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin:22px 0;padding:16px 18px;border-radius:14px;background:linear-gradient(120deg,#0f2748,#173865);color:#fff}
article.prose .kdl-cta__txt{display:grid;gap:2px;min-width:200px;flex:1}
article.prose .kdl-cta__txt b{font-size:17px}
article.prose .kdl-cta__txt span{font-size:13.5px;opacity:.85}
article.prose .kdl-cta__btns{display:flex;gap:10px;flex-wrap:wrap}
article.prose .kdl-cta .btn{text-decoration:none}
article.prose .kdl-cta .btn--ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45)}
article.prose .kdl-cta .btn--primary{background:#fff;color:#0f2748;border-color:#fff}

@media (max-width:782px){
	article.prose .kdl-cta{padding:14px}
	article.prose .kdl-cta__btns{width:100%}
	article.prose .kdl-cta__btns .btn{flex:1;justify-content:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){article.prose .kdl-toc>summary::after{transition:none}}