/* ---------- Blog (list + post) ---------- */
.blog-page .nav-links a.active{background:var(--card);color:var(--ink)}
.blog-hero{max-width:1240px;margin:0 auto;padding:150px var(--gutter) 40px}
.blog-hero h1{font-size:clamp(40px,6vw,84px);line-height:1;letter-spacing:-.045em;font-weight:500;max-width:900px}
.b-filter{display:flex;flex-wrap:wrap;gap:8px;margin-top:30px}
.b-filter .chip{text-decoration:none}
.blog-list{max-width:1240px;margin:0 auto;padding:20px var(--gutter) 90px}
.blog-list.related{padding-top:0}
.blog-list.related h2{font-size:clamp(26px,3vw,36px);font-weight:500;letter-spacing:-.03em;margin-bottom:24px}
.b-thumb{position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--card);aspect-ratio:16/10}
.b-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.b-ph{position:absolute;inset:0;background:var(--grad);opacity:.85}
.b-ph::after{content:"";position:absolute;inset:0;background:url(/assets/logo.svg) center/60px no-repeat;filter:brightness(0) invert(1);opacity:.9}
.b-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin:16px 0 8px}
.b-new{background:var(--ink);color:#fff;border-radius:999px;padding:3px 10px;font-weight:600;font-size:12px}
.b-lead{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;align-items:center;margin-bottom:56px}
.b-lead .b-thumb{aspect-ratio:16/10}
.b-lead h2{font-size:clamp(28px,3.4vw,46px);line-height:1.08;letter-spacing:-.035em;font-weight:500}
.b-lead p{color:var(--ink-2);margin:14px 0 22px;font-size:18px}
.b-lead:hover .b-thumb img,.b-card:hover .b-thumb img{transform:scale(1.05)}
.b-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.b-card{display:block;transition:transform .6s var(--ease)}
.b-card:hover{transform:translateY(-4px)}
.b-card h3{font-size:21px;font-weight:500;letter-spacing:-.02em;line-height:1.25}
.b-card p{color:var(--ink-2);font-size:15px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.b-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.b-tags span,.b-tags a{font-size:12px;padding:4px 10px;border-radius:999px;background:var(--card);color:var(--ink-2)}
.b-tags a:hover{background:var(--ink);color:#fff}
.b-empty{text-align:center;padding:60px 20px;border-radius:var(--r-xl);background:var(--bg-soft)}
.b-empty h2{font-size:28px;font-weight:500}.b-empty p{color:var(--ink-2);margin:8px 0 22px}

/* post */
.read-bar{position:fixed;left:0;top:0;height:3px;width:100%;z-index:120;background:var(--grad);transform-origin:0 50%;transform:scaleX(0)}
.post{max-width:780px;margin:0 auto;padding:140px var(--gutter) 40px}
.post .back{display:inline-block;color:var(--ink-3);font-size:15px;margin-bottom:22px}
.post .back:hover{color:var(--ink)}
.post-head h1{font-size:clamp(34px,5vw,60px);line-height:1.06;letter-spacing:-.04em;font-weight:500;margin-top:14px}
.post-lead{font-size:20px;color:var(--ink-2);margin-top:16px}
.post-by{display:flex;align-items:center;gap:12px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line)}
.post-by img{width:44px;height:44px;border-radius:50%;object-fit:cover}
.post-by b{display:block;font-size:15px}.post-by span{font-size:13px;color:var(--ink-3)}
.post-cover{margin:36px calc(min(0px,(780px - 1080px)/2)) 0;border-radius:var(--r-xl);overflow:hidden}
.post-cover img{width:100%;max-height:620px;object-fit:cover}
.post-body{margin-top:40px;font-size:19px;line-height:1.8;color:#24262c}
.post-body>*+*{margin-top:1.1em}
.post-body h2{font-size:30px;line-height:1.2;letter-spacing:-.025em;font-weight:600;margin-top:1.8em}
.post-body h3{font-size:23px;font-weight:600;margin-top:1.6em}
.post-body h4{font-size:19px;font-weight:600;margin-top:1.4em}
.post-body a{color:#3b5bdb;text-decoration:underline;text-underline-offset:3px}
.post-body ul,.post-body ol{padding-left:1.4em}
.post-body ul{list-style:disc}.post-body ol{list-style:decimal}
.post-body li+li{margin-top:.35em}
.post-body blockquote{border-left:4px solid;border-image:var(--grad) 1;padding:4px 0 4px 22px;font-size:21px;color:var(--ink)}
.post-body img{border-radius:var(--r-md);width:100%}
.post-body figure{margin-top:1.6em}
.post-body code{font-family:var(--mono);font-size:.85em;background:var(--card);padding:2px 6px;border-radius:6px}
.post-body pre{background:var(--dark);color:#e6e7ea;padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;font-size:15px;line-height:1.6}
.post-body pre code{background:none;padding:0;color:inherit}
.post-body hr{border:0;height:1px;background:var(--line);margin:2.2em 0}
.post-body mark{background:linear-gradient(transparent 55%,rgba(255,181,71,.45) 55%);padding:0 2px}
.post-body .embed{position:relative;aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;background:#000}
.post-body .embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.post-foot{margin-top:56px;padding-top:28px;border-top:1px solid var(--line)}
.share{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.share span{font-weight:600;margin-right:6px}
.share a,.share button{padding:9px 16px;border-radius:999px;background:var(--card);font-size:14px;font-weight:500;transition:background .3s,color .3s}
.share a:hover,.share button:hover{background:var(--ink);color:#fff}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.post-nav a{display:block;padding:18px 20px;border-radius:var(--r-lg);background:var(--bg-soft);transition:background .3s}
.post-nav a:hover{background:#eceef1}
.post-nav a.r{text-align:right}
.post-nav small{display:block;color:var(--ink-3);font-size:13px}
.post-nav b{font-weight:500}
.post-cta{max-width:1180px;margin:0 auto 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;padding:44px 48px;border-radius:36px;background:var(--dark);color:#fff;position:relative;overflow:hidden}
.post-cta::before{content:"";position:absolute;width:420px;height:420px;right:-120px;top:-200px;border-radius:50%;background:var(--grad);filter:blur(90px);opacity:.35}
.post-cta>*{position:relative}
.post-cta h2{font-size:clamp(24px,3vw,34px);font-weight:500;letter-spacing:-.02em}
.post-cta p{color:#b9bcc4;margin-top:6px}

/* home: latest posts */
.home-blog .b-grid{grid-template-columns:repeat(3,1fr)}
.home-blog[hidden]{display:none}

@media (max-width:900px){
  .b-lead{grid-template-columns:1fr;gap:6px}
  .b-grid,.home-blog .b-grid{grid-template-columns:repeat(2,1fr)}
  .post-cover{margin-left:0;margin-right:0}
}
@media (max-width:640px){
  .blog-hero{padding-top:120px}
  .b-grid,.home-blog .b-grid{grid-template-columns:1fr}
  .post{padding-top:110px}
  .post-body{font-size:17.5px}
  .post-nav{grid-template-columns:1fr}
  .post-cta{margin:0 10px 30px;padding:32px 24px;border-radius:28px}
}