/* NGUYÊN VĂN từ design/blog-lo-say-va-chat-luong-mang-son.html (khối riêng trang) */
/* ===== riêng trang blog-lo-say-va-chat-luong-mang-son.html ===== */

.bgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.post:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.post[hidden]{display:none}
.post-img{aspect-ratio:16/10;overflow:hidden;background:var(--bg-soft)}
.post-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.post:hover .post-img img{transform:scale(1.05)}
.post-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap;font-size:.74rem;color:var(--muted);font-weight:600}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.5}
.post h3{font-size:1.1rem;font-weight:800;line-height:1.35}
.post p{font-size:.88rem;color:var(--muted);line-height:1.6;flex:1}
.post .link-arrow{margin-top:6px}
.feat{display:grid;grid-template-columns:1.15fr .85fr;border-radius:18px;overflow:hidden;border:1px solid var(--line);background:#fff;margin-bottom:44px;transition:box-shadow .3s}
.feat:hover{box-shadow:var(--shadow)}
.feat .post-img{aspect-ratio:auto;min-height:360px}
.feat .post-body{padding:44px 40px;justify-content:center;gap:14px}
.feat h3{font-size:1.75rem;line-height:1.25}
.feat p{flex:none;font-size:.98rem}
.blog-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:30px}
@media(max-width:980px){.bgrid{grid-template-columns:repeat(2,1fr)}.feat{grid-template-columns:1fr}.feat .post-img{min-height:240px}.feat .post-body{padding:28px 26px}.feat h3{font-size:1.4rem}}
@media(max-width:640px){.bgrid{grid-template-columns:1fr}}

.art-top{padding:calc(var(--header-h) + 34px) 0 40px;background:linear-gradient(180deg,var(--bg-soft),#fff)}
.art-top .crumbs{color:var(--muted)}
.art-top .crumbs a:hover{color:var(--navy)}
.art-top h1{font-size:2.6rem;font-weight:900;line-height:1.15;max-width:860px;margin-top:16px}
.art-top .lead{max-width:760px;margin-top:16px}
.art-top .post-meta{margin-top:20px}
.art-cover{border-radius:18px;overflow:hidden;aspect-ratio:21/9;background:var(--bg-soft)}
.art-cover img{width:100%;height:100%;object-fit:cover}
.art{display:grid;grid-template-columns:240px 1fr;gap:56px;padding-top:56px;padding-bottom:96px;align-items:start}
.toc{position:sticky;top:calc(var(--header-h) + 28px)}
.toc b{display:block;font-size:.7rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.toc a{display:block;font-size:.88rem;font-weight:600;color:var(--muted);padding:8px 0 8px 14px;border-left:2px solid var(--line);transition:color .2s,border-color .2s}
.toc a:hover,.toc a.on{color:var(--navy);border-left-color:var(--navy)}
.prose{max-width:720px}
.tldr{padding:24px 26px;border-radius:14px;background:var(--tint);margin-bottom:36px}
.tldr b{display:block;font-size:.72rem;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--navy);margin-bottom:12px}
.tldr li{position:relative;padding-left:20px;font-size:.95rem;line-height:1.6;margin-bottom:8px}
.tldr li::before{content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:2px;background:var(--blue)}
.prose h2{font-size:1.5rem;font-weight:800;line-height:1.3;margin:40px 0 14px;scroll-margin-top:calc(var(--header-h) + 24px)}
.prose h3{font-size:1.15rem;font-weight:800;margin:28px 0 10px}
.prose p{font-size:1.02rem;line-height:1.8;color:#2b3b4f;margin-bottom:16px}
.prose ul{margin:0 0 18px;display:grid;gap:10px}
.prose ul li{position:relative;padding-left:22px;font-size:1rem;line-height:1.7;color:#2b3b4f}
.prose ul li::before{content:"";position:absolute;left:4px;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.prose .doc{display:flex;gap:14px;align-items:center;padding:18px 20px;border:1px solid var(--line);border-radius:12px;margin:24px 0;font-weight:700;transition:border-color .2s}
.prose .doc:hover{border-color:var(--blue)}
.prose .doc svg{width:22px;height:22px;color:var(--blue)}
.art-cta{margin-top:40px;padding:28px 30px;border-radius:14px;background:var(--navy);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.art-cta b{font-size:1.1rem}
.art-cta p{color:#b9cbe0;font-size:.9rem;margin-top:4px}
@media(max-width:980px){.art{grid-template-columns:1fr;gap:20px}.toc{position:static;display:none}.art-top h1{font-size:2rem}.art-cover{aspect-ratio:16/9}}
@media(max-width:640px){.art-top h1{font-size:1.65rem}.prose h2{font-size:1.3rem}}