/* ============================================================
   UpWord blog & article pages — layered on top of styles.css
   (reuses :root vars, fonts, navbar, buttons, bg-scene, orbs)
   ============================================================ */

/* --- navbar: always glass on content pages --- */
.navbar{background:rgba(5,27,20,.9);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--glass-border-soft)}
.nav-cta{display:inline-flex}

/* --- page shell --- */
.blog-page{padding-top:calc(var(--nav-h) + 34px);padding-bottom:80px;min-height:100vh}
.container{max-width:var(--container)}

/* --- blog hero --- */
.blog-hero{padding:34px 0 10px;text-align:center}
.blog-hero .section-eyebrow{margin-bottom:18px}
.blog-hero h1{font-size:clamp(26px,4.5vw,42px);font-weight:800;line-height:1.55;letter-spacing:0}
.blog-hero p{margin:16px auto 0;max-width:640px;font-size:15.5px;color:var(--ink-mute);line-height:2}
.blog-count{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:13px;font-weight:600;color:var(--ink-soft);background:var(--glass);border:1px solid var(--glass-border-soft);padding:7px 16px;border-radius:999px}
.blog-count .dot{width:7px;height:7px;border-radius:50%;background:var(--green-lite);animation:blog-pulse 2.4s ease-out infinite}
@keyframes blog-pulse{0%{box-shadow:0 0 0 0 rgba(74,222,128,.5)}70%{box-shadow:0 0 0 8px transparent}to{box-shadow:0 0 0 0 transparent}}

/* --- posts grid --- */
.posts-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin-top:42px}
.post-card{position:relative;display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--glass-border);border-radius:22px;text-decoration:none;color:inherit;overflow:hidden;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);transition:transform .25s var(--ease-out, ease-out),border-color .25s,box-shadow .25s}
.post-card:hover{transform:translateY(-5px);border-color:rgba(34,197,94,.35);box-shadow:0 26px 50px -28px rgba(0,0,0,.75)}

/* v123 — the cover card: full-bleed art header, chip pinned over its
   corner, padded text body below. aspect-ratio keeps the 1344×768 art
   from shifting the layout while it loads. */
.post-card.has-cover{padding:0}
.post-cover{position:relative;display:block;width:100%;aspect-ratio:1344/768;background:linear-gradient(135deg,rgba(34,197,94,.16),rgba(6,43,31,.9));overflow:hidden}
.post-cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transition:transform .45s var(--ease-out, ease-out)}
.post-card:hover .post-cover img{transform:scale(1.045)}
.post-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(2,16,11,.0) 55%,rgba(2,16,11,.55) 100%);pointer-events:none}
.post-chip--over{position:absolute;bottom:12px;inset-inline-start:12px;z-index:2;color:#eafff3;background:rgba(4,35,26,.82);border-color:rgba(74,222,128,.45);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.post-body{display:flex;flex-direction:column;gap:14px;padding:22px 24px 20px;flex:1}
.post-card--plain{padding:26px 24px 22px;gap:14px}
.post-card--plain .post-body{padding:0;gap:14px}
.post-chip{align-self:flex-start;display:inline-flex;align-items:center;font-size:11.5px;font-weight:700;color:var(--green-lite);background:var(--green-soft);border:1px solid rgba(34,197,94,.25);padding:5px 12px;border-radius:99px}
.post-card h2{font-size:18.5px;font-weight:800;line-height:1.75;color:var(--ink)}
.post-card p{font-size:14px;color:var(--ink-mute);line-height:2;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:14px;margin-top:auto;padding-top:8px;border-top:1px solid var(--glass-border-soft);font-size:12.5px;color:var(--ink-mute)}
.post-meta time,.post-meta .rt{display:inline-flex;align-items:center;gap:6px}
.post-go{position:absolute;top:16px;inset-inline-end:16px;z-index:2;width:34px;height:34px;display:flex;align-items:center;justify-content:center;color:#eafff3;font-size:17px;background:rgba(4,35,26,.55);border:1px solid rgba(255,255,255,.14);border-radius:50%;opacity:0;transform:translateY(4px);transition:opacity .25s,transform .25s,color .25s;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.post-card:hover .post-go,.post-card:focus-visible .post-go{opacity:1;transform:translateY(0)}
.post-card--plain .post-go{position:static;margin:0;background:transparent;border:0;color:var(--ink-mute);opacity:1;transform:none;width:auto;height:auto}
[dir="rtl"] .post-card:hover .post-go{transform:translateY(0) translateX(-4px)}
.post-card:hover .post-go{color:var(--green-lite)}
.posts-empty{grid-column:1/-1;text-align:center;color:var(--ink-mute);font-size:14.5px;padding:40px 0}

/* --- bottom CTA band --- */
.blog-cta{margin-top:64px;background:var(--glass);border:1px solid var(--glass-border);border-radius:28px;padding:44px 34px;text-align:center;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}
.blog-cta h2{font-size:clamp(22px,3.4vw,30px);font-weight:800;line-height:1.7}
.blog-cta p{margin:12px auto 24px;max-width:560px;font-size:14.5px;color:var(--ink-mute);line-height:2.1}
.blog-cta .cta-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}

/* --- simple footer --- */
.blog-footer{border-top:1px solid var(--glass-border-soft);padding:30px 0 34px;background:linear-gradient(180deg,transparent,rgba(2,16,11,.7))}
.blog-footer .inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px}
.blog-footer .links{display:flex;flex-wrap:wrap;gap:18px;font-size:13px}
.blog-footer a{color:var(--ink-soft);text-decoration:none;transition:color .2s}
.blog-footer a:hover{color:var(--green-lite)}
.blog-footer .cr{font-size:12.5px;color:var(--ink-mute)}

/* ============================================================
   Article page
   ============================================================ */
.article-wrap{max-width:768px;margin:0 auto}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;color:var(--ink-mute);margin-bottom:26px}
.crumbs a{color:var(--ink-soft);text-decoration:none;transition:color .2s}
.crumbs a:hover{color:var(--green-lite)}
.crumbs .sep{opacity:.5}
.crumbs .cur{color:var(--green-lite);font-weight:600}

/* article cover hero (v123) — the post's own art at the top of the card */
.article-cover{position:relative;margin:0 0 26px;border-radius:18px;overflow:hidden;box-shadow:0 22px 44px -22px rgba(0,0,0,.6)}
.article-cover img{display:block;width:100%;height:auto;aspect-ratio:1344/768;object-fit:cover}
.article-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:26px;padding:clamp(26px,5vw,52px);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
.article-card.has-cover{padding-top:clamp(14px,3vw,24px)}
.article-head .post-chip{margin-bottom:16px}
.article-head h1{font-size:clamp(24px,4vw,34px);font-weight:800;line-height:1.65;letter-spacing:0}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:18px;padding-top:18px;border-top:1px solid var(--glass-border-soft);font-size:13px;color:var(--ink-mute)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}

/* short-answer (AEO) box */
.short-answer{margin:28px 0 8px;background:linear-gradient(135deg,rgba(34,197,94,.13),rgba(34,197,94,.05));border:1px solid rgba(34,197,94,.3);border-radius:18px;padding:20px 22px}
.short-answer .sa-label{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:800;color:var(--green-lite);margin-bottom:10px}
.short-answer p{font-size:15px;line-height:2.15;color:var(--ink)}

/* prose */
.prose{margin-top:26px}
.prose h2{font-size:clamp(19px,2.8vw,24px);font-weight:800;line-height:1.8;margin:44px 0 14px;padding-inline-start:14px;border-inline-start:3px solid var(--green)}
.prose h2:first-child{margin-top:8px}
.prose h3{font-size:17px;font-weight:700;line-height:1.9;margin:30px 0 10px;color:var(--ink)}
.prose p{font-size:15.5px;line-height:2.3;color:var(--ink-soft);margin:0 0 18px}
.prose strong{color:var(--ink);font-weight:700}
.prose ul,.prose ol{margin:0 0 20px;padding-inline-start:6px;list-style:none}
.prose ul li,.prose ol li{position:relative;font-size:15.5px;line-height:2.2;color:var(--ink-soft);padding-inline-start:26px;margin-bottom:10px}
.prose ul li::before{content:"";position:absolute;inset-inline-start:8px;top:15px;width:7px;height:7px;border-radius:50%;background:var(--green-lite);box-shadow:0 0 0 4px rgba(34,197,94,.18)}
.prose ol{counter-reset:ol}
.prose ol li{counter-increment:ol}
.prose ol li::before{content:counter(ol);position:absolute;inset-inline-start:0;top:4px;width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:800;color:#04271a;background:var(--green-lite);border-radius:50%;box-shadow:0 0 0 4px rgba(34,197,94,.15)}
.prose blockquote{margin:24px 0;padding:18px 22px;border-inline-start:3px solid var(--butter,#F5E7AE);background:rgba(245,231,174,.07);border-radius:0 14px 14px 0;font-size:15px;line-height:2.2;color:var(--ink-soft)}
[dir="rtl"] .prose blockquote{border-radius:14px 0 0 14px}
.prose .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:24px 0;border:1px solid var(--glass-border-soft);border-radius:12px}
.prose .table-wrap table{margin:0;width:100%;min-width:440px}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:14px}
.prose table th{background:var(--green-soft);color:var(--ink);font-weight:700;padding:12px 14px;border:1px solid var(--glass-border);text-align:right}
.prose table td{padding:11px 14px;border:1px solid var(--glass-border-soft);color:var(--ink-soft);line-height:1.9}
.prose a{color:var(--green-lite);text-decoration:none;border-bottom:1px dashed rgba(34,197,94,.45);transition:border-color .2s}
.prose a:hover{border-bottom-style:solid}
.prose figure{margin:26px 0}
.prose figcaption{margin-top:10px;font-size:12.5px;color:var(--ink-mute);text-align:center}

/* article FAQ */
.article-faq{margin-top:44px;padding-top:30px;border-top:1px solid var(--glass-border-soft)}
.article-faq h2{font-size:clamp(19px,2.8vw,24px);font-weight:800;margin-bottom:18px}
.article-faq details{background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;padding:16px 20px;margin-bottom:12px}
.article-faq summary{cursor:pointer;font-size:15px;font-weight:700;color:var(--ink);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.article-faq summary::-webkit-details-marker{display:none}
.article-faq summary::after{content:"+";font-size:19px;color:var(--green-lite);flex-shrink:0;transition:transform .25s}
.article-faq details[open] summary::after{transform:rotate(45deg)}
.article-faq .faq-answer{margin-top:12px;font-size:14.5px;line-height:2.2;color:var(--ink-soft)}

/* related posts */
.related{margin-top:40px}
.related h2{font-size:clamp(18px,2.6vw,22px);font-weight:800;margin-bottom:16px}
.related-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.related a{display:flex;flex-direction:column;gap:8px;background:var(--glass);border:1px solid var(--glass-border);border-radius:18px;padding:20px;text-decoration:none;color:inherit;transition:transform .25s,border-color .25s}
.related a:hover{transform:translateY(-4px);border-color:rgba(34,197,94,.35)}
.related .rel-cat{font-size:11px;font-weight:700;color:var(--green-lite)}
.related .rel-title{font-size:15.5px;font-weight:700;line-height:1.9;color:var(--ink)}
.related .rel-meta{font-size:12.5px;color:var(--ink-mute)}

/* mobile */
@media (max-width:640px){
  .blog-page{padding-top:calc(var(--nav-h) + 22px);padding-bottom:56px}
  .posts-grid{grid-template-columns:1fr;gap:16px;margin-top:30px}
  .post-body{padding:16px;gap:10px}
  .post-card h2{font-size:16.5px;line-height:1.8}
  .post-card p{-webkit-line-clamp:2}
  .post-chip--over{bottom:10px;inset-inline-start:10px;font-size:11px}
  .blog-cta{padding:32px 20px;border-radius:22px}
  .article-card{padding:24px 18px;border-radius:20px}
  .article-card.has-cover{padding-top:14px}
  .article-cover{margin-bottom:18px;border-radius:14px}
  .nav-links{gap:2px}
  .nav-link{padding:8px 9px;font-size:13px}
}

/* ── Chinese course (v129): example boxes + lesson nav ─────────────── */
.zh-ex{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin:14px 0 18px;padding:14px 18px;background:rgba(34,197,94,.06);border:1px solid rgba(34,197,94,.22);border-radius:14px}
.zh-ex .zh{font-size:19px;font-weight:700;color:var(--ink);line-height:1.9;direction:ltr;unicode-bidi:isolate}
.zh-ex .py{direction:ltr;font-family:vazirmatn-latin,Inter,sans-serif;font-size:13.5px;font-weight:600;color:var(--green-lite,#86efac);letter-spacing:.2px}
.zh-ex .fa{font-size:14px;color:var(--ink-soft)}
.zh-ex .tag{font-size:11px;font-weight:800;color:#04271a;background:var(--green-lite,#86efac);border-radius:8px;padding:2px 8px;margin-inline-end:4px}
.lesson-nav{display:flex;justify-content:space-between;gap:12px;margin:34px 0 4px}
.lesson-nav a{flex:1;display:flex;flex-direction:column;gap:4px;background:var(--glass);border:1px solid var(--glass-border);border-radius:16px;padding:14px 16px;text-decoration:none;color:inherit;font-size:13.5px;line-height:1.9;transition:border-color .25s}
.lesson-nav a:hover{border-color:rgba(34,197,94,.4)}
.lesson-nav a .lbl{font-size:11px;font-weight:800;color:var(--green-lite,#86efac)}
.lesson-nav a.next{text-align:left}
.lesson-nav a.hub{flex:0 0 auto;justify-content:center;align-items:center;text-align:center;color:var(--green-lite,#86efac);font-weight:700}
@media (max-width:640px){.lesson-nav a.hub{display:none}}

/* ── Chinese course banner on the blog index ─────────────────────────── */
.course-banner{margin:26px 0 6px}
.course-card{display:flex;flex-direction:column;gap:9px;background:linear-gradient(135deg,rgba(34,197,94,.16),rgba(34,197,94,.05));border:1px solid rgba(34,197,94,.35);border-radius:22px;padding:26px 28px;text-decoration:none;color:inherit;position:relative;overflow:hidden;transition:transform .25s,border-color .25s}
.course-card:hover{transform:translateY(-3px);border-color:rgba(34,197,94,.55)}
.course-card .cc-eyebrow{font-size:12px;font-weight:800;color:var(--green-lite,#4ADE80);letter-spacing:.3px}
.course-card .cc-title{font-size:clamp(19px,3vw,26px);font-weight:900;line-height:1.8;color:var(--ink)}
.course-card .cc-zh{font-weight:700;color:var(--green-lite,#4ADE80);margin-inline-start:10px;font-size:.85em}
.course-card .cc-desc{font-size:14.5px;line-height:2.15;color:var(--ink-soft);max-width:640px}
.course-card .cc-cta{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:800;color:#04271a;background:var(--green-lite,#4ADE80);border-radius:12px;padding:9px 18px;margin-top:6px;align-self:flex-start}