/* Blog: editorial reading layout, one frosted side panel, quiet motion. Palette A from site-system.css. */
body.bl{background:var(--site-bg,#030407);color:var(--site-ink,#f3f4f6);font-family:'DM Sans',system-ui,sans-serif;line-height:1.6;margin:0}
.bl *{box-sizing:border-box}
.bl a{color:inherit}
.bl ::selection{background:rgba(212,255,36,.28)}
.bl-wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* reading progress */
.bl-progress{position:fixed;inset:0 0 auto 0;height:2px;z-index:60;pointer-events:none}
.bl-progress span{display:block;height:100%;background:var(--site-lime,#d4ff24);transform-origin:0 50%;transform:scaleX(0)}

/* labels */
.bl-label{font:500 12px/1.4 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase;color:var(--site-muted,#9da5b3)}
.bl-label a{text-decoration:none}
.bl-label a:hover{color:var(--site-ink)}

/* ---------- post ---------- */
.bl-head{max-width:760px;padding:120px 0 36px}
.bl-head h1{font:600 clamp(36px,5.4vw,60px)/1.06 'Source Serif 4',Georgia,serif;letter-spacing:-.02em;margin:18px 0 20px;text-wrap:balance}
.bl-lede{font:400 20px/1.55 'Source Serif 4',Georgia,serif;color:#c9ced8;margin:0;max-width:680px}
.bl-meta{display:flex;flex-wrap:wrap;gap:8px 32px;margin:32px 0 0;padding:16px 0 0;border-top:1px solid var(--site-line,rgba(255,255,255,.1))}
.bl-meta div{display:grid;gap:2px}
.bl-meta dt{font:500 11px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase;color:#6f7684}
.bl-meta dd{margin:0;font-size:15px;color:var(--site-ink)}
.bl-cover{margin:0 0 56px;border:1px solid var(--site-line);border-radius:6px;overflow:hidden;background:#0a0c10}
.bl-cover img{display:block;width:100%;height:auto;aspect-ratio:1200/630}

.bl-layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:72px;align-items:start;padding-bottom:96px}
.bl-body{max-width:690px;font:400 19px/1.7 'Source Serif 4',Georgia,serif;color:#d3d7df}
.bl-body h2{font:600 30px/1.2 'Source Serif 4',Georgia,serif;letter-spacing:-.01em;color:var(--site-ink);margin:56px 0 14px;scroll-margin-top:110px}
.bl-body h2:first-child{margin-top:0}
.bl-body p{margin:0 0 20px}
.bl-body ul,.bl-body ol{margin:0 0 24px;padding-left:22px}
.bl-body li{margin:6px 0}
.bl-body a{color:var(--site-cobalt-light,#8db4ff);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.bl-body a:hover{color:var(--site-ink)}

/* facts */
.bl-facts{margin:64px 0 0;padding-top:24px;border-top:1px solid var(--site-line)}
.bl-facts h2{margin-top:6px}
.bl-facts ol{list-style:none;padding:0;margin:20px 0 0;counter-reset:fact}
.bl-facts li{counter-increment:fact;display:grid;grid-template-columns:44px 1fr;gap:0 8px;margin:0;padding:22px 0;border-bottom:1px solid var(--site-line)}
.bl-facts li::before{content:counter(fact,decimal-leading-zero);font:500 13px/2.2 'JetBrains Mono',ui-monospace,monospace;color:var(--site-lime)}
.bl-facts li p{margin:0;grid-column:2}
.bl-facts .bl-src{margin-top:8px;font:400 14px/1.5 'DM Sans',system-ui,sans-serif;color:#858c99}
.bl-facts .bl-src a{color:#a9b1bf}

/* sources */
.bl-sources{margin-top:56px}
.bl-sources h2{font-size:22px}
.bl-sources ul{list-style:none;padding:0;font:400 15px/1.5 'DM Sans',system-ui,sans-serif}
.bl-sources li{padding:10px 0;border-bottom:1px solid var(--site-line)}
.bl-sources small{display:block;color:#6f7684;font:500 12px 'JetBrains Mono',ui-monospace,monospace;margin-top:2px}

/* contact */
.bl-contact{margin-top:64px;padding:28px;border:1px solid var(--site-line);border-radius:8px;background:var(--site-surface,#101217);font-family:'DM Sans',system-ui,sans-serif}
.bl-contact h2{font:600 24px/1.25 'Source Serif 4',Georgia,serif;margin:0 0 8px;color:var(--site-ink)}
.bl-contact p{font-size:16px;color:#b8bec9;margin:0 0 20px;max-width:520px}
.bl-actions{display:flex;flex-wrap:wrap;gap:10px}
.bl-btn{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:6px;border:1px solid var(--site-line);font:600 15px 'DM Sans',system-ui,sans-serif;text-decoration:none;color:var(--site-ink);background:transparent;transition:border-color .15s ease,background-color .15s ease}
.bl-btn:hover{border-color:rgba(255,255,255,.3)}
.bl-btn.is-primary{background:var(--site-lime);border-color:var(--site-lime);color:#0b0d02}
.bl-btn.is-primary:hover{background:#e2ff6a}

/* side panel: the one frosted surface on the page */
.bl-panel{position:sticky;top:96px;padding:20px;border:1px solid rgba(255,255,255,.09);border-radius:10px;background:rgba(16,18,23,.62);backdrop-filter:blur(16px) saturate(120%);-webkit-backdrop-filter:blur(16px) saturate(120%);font-family:'DM Sans',system-ui,sans-serif}
.bl-panel .bl-label{margin:0 0 12px}
.bl-toc{list-style:none;margin:0;padding:0;position:relative}
.bl-toc::before{content:"";position:absolute;left:0;top:0;bottom:0;width:1px;background:var(--site-line)}
.bl-toc a{display:block;padding:6px 0 6px 14px;font-size:14px;line-height:1.4;color:#8f97a4;text-decoration:none;transition:color .15s ease}
.bl-toc a:hover{color:var(--site-ink)}
.bl-toc a.is-active{color:var(--site-ink)}
.bl-toc-mark{position:absolute;left:0;top:0;width:1px;height:0;background:var(--site-lime);transition:transform .25s ease,height .25s ease}
.bl-stats{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:20px 0 16px;border:1px solid var(--site-line);border-radius:6px;overflow:hidden;background:var(--site-line)}
.bl-stats div{padding:10px 12px;background:rgba(10,12,16,.7)}
.bl-stats dt{font:500 10px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase;color:#6f7684}
.bl-stats dd{margin:2px 0 0;font:600 18px 'DM Sans',system-ui,sans-serif;font-variant-numeric:tabular-nums}
.bl-panel .bl-btn{width:100%;justify-content:center}
.bl-panel .bl-btn+.bl-btn{margin-top:8px}

/* mobile contents */
.bl-toc-m{display:none;margin:0 0 40px;border:1px solid var(--site-line);border-radius:8px;font-family:'DM Sans',system-ui,sans-serif}
.bl-toc-m summary{padding:14px 16px;cursor:pointer;font-weight:600;list-style:none}
.bl-toc-m summary::-webkit-details-marker{display:none}
.bl-toc-m summary::after{content:"+";float:right;color:var(--site-muted)}
.bl-toc-m[open] summary::after{content:"–"}
.bl-toc-m ol{margin:0;padding:0 16px 14px 34px;color:#b8bec9}
.bl-toc-m li{margin:6px 0}
.bl-toc-m a{text-decoration:none}

/* prev / next */
.bl-pn{display:grid;grid-template-columns:1fr 1fr;gap:1px;margin:0 0 96px;border:1px solid var(--site-line);border-radius:8px;overflow:hidden;background:var(--site-line)}
.bl-pn a{display:block;padding:20px 22px;background:var(--site-bg);text-decoration:none;transition:background-color .15s ease}
.bl-pn a:hover{background:var(--site-surface)}
.bl-pn strong{display:block;margin-top:6px;font:600 18px/1.35 'Source Serif 4',Georgia,serif}
.bl-pn a:last-child{text-align:right}
.bl-pn span:empty{background:var(--site-bg)}

/* footer */
.bl-foot{border-top:1px solid var(--site-line);padding:28px 0 40px;color:#7f8795;font-size:13px}

/* ---------- index ---------- */
.bl-ihead{padding:128px 0 40px;max-width:820px}
.bl-ihead h1{font:600 clamp(40px,6vw,68px)/1.04 'Source Serif 4',Georgia,serif;letter-spacing:-.02em;margin:16px 0 18px;text-wrap:balance}
.bl-ihead p{font:400 20px/1.55 'Source Serif 4',Georgia,serif;color:#c9ced8;margin:0;max-width:640px}
.bl-filter{display:flex;flex-wrap:wrap;gap:8px;padding:20px 0;border-top:1px solid var(--site-line);border-bottom:1px solid var(--site-line);margin-bottom:8px}
.bl-filter button{min-height:38px;padding:0 14px;border:1px solid var(--site-line);border-radius:6px;background:transparent;color:#b8bec9;font:500 14px 'DM Sans',system-ui,sans-serif;cursor:pointer;transition:border-color .15s ease,color .15s ease}
.bl-filter button:hover{color:var(--site-ink);border-color:rgba(255,255,255,.28)}
.bl-filter button[aria-pressed="true"]{color:#0b0d02;background:var(--site-lime);border-color:var(--site-lime)}
.bl-filter small{margin-left:6px;font:500 12px 'JetBrains Mono',ui-monospace,monospace;opacity:.7}
.bl-list{list-style:none;margin:0 0 80px;padding:0}
.bl-item{display:grid;grid-template-columns:140px minmax(0,1fr) 260px;gap:32px;align-items:start;padding:32px 0;border-bottom:1px solid var(--site-line)}
.bl-item[hidden]{display:none}
.bl-item .bl-label{padding-top:6px}
.bl-item .bl-label span{display:block;color:#6f7684;margin-top:4px}
.bl-item h2{font:600 26px/1.25 'Source Serif 4',Georgia,serif;margin:0 0 10px;letter-spacing:-.01em}
.bl-item h2 a{text-decoration:none}
.bl-item h2 a:hover{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px}
.bl-item p{margin:0;color:#aab1bd;font-size:16px;line-height:1.6}
.bl-item img{display:block;width:100%;height:auto;aspect-ratio:1200/630;border:1px solid var(--site-line);border-radius:6px;background:#0a0c10}
.bl-news{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:40px;align-items:end;padding:32px;margin-bottom:96px;border:1px solid var(--site-line);border-radius:8px;background:var(--site-surface)}
.bl-news h2{font:600 26px/1.25 'Source Serif 4',Georgia,serif;margin:0 0 8px}
.bl-news p{margin:0;color:#aab1bd;font-size:15px}
.bl-news form{display:flex;gap:8px}
.bl-news input[type=email]{flex:1;min-width:0;min-height:44px;padding:0 14px;border:1px solid var(--site-line);border-radius:6px;background:var(--site-bg);color:var(--site-ink);font:400 16px 'DM Sans',system-ui,sans-serif}
.bl-news input[type=email]:focus{outline:none;border-color:var(--site-cobalt)}
.bl-news .bl-rodo{grid-column:1/-1;font-size:12px;color:#6f7684;margin:0}

/* reveal once; nothing moves for reduced motion */
@media (prefers-reduced-motion:no-preference){
  .bl-js .bl-rv{opacity:0;transform:translateY(10px);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.2,1)}
  .bl-js .bl-rv.is-in{opacity:1;transform:none}
}

@media (max-width:1080px){
  .bl-layout{grid-template-columns:1fr;gap:0}
  .bl-panel{display:none}
  .bl-toc-m{display:block}
  .bl-item{grid-template-columns:minmax(0,1fr) 200px}
  .bl-item>.bl-label{grid-column:1/-1;padding:0}
  .bl-item>.bl-label span{display:inline;margin-left:12px}
}
@media (max-width:680px){
  .bl-wrap{padding:0 16px}
  .bl-head{padding-top:96px}
  .bl-lede,.bl-ihead p{font-size:18px}
  .bl-body{font-size:18px}
  .bl-body h2{font-size:26px}
  .bl-cover{margin-bottom:32px}
  .bl-item{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .bl-item>a{order:-1}
  .bl-item h2{font-size:22px}
  .bl-pn{grid-template-columns:1fr}
  .bl-pn a:last-child{text-align:left}
  .bl-news{grid-template-columns:1fr;gap:16px;padding:22px}
  .bl-news form{flex-direction:column}
  .bl-contact{padding:22px}
}

/* photo covers (illustrative, generated) with the post's key fact as caption */
.bl-cover img{aspect-ratio:16/9;object-fit:cover}
.bl-cover figcaption{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 14px;padding:14px 18px;border-top:1px solid var(--site-line);font:400 15px/1.5 'DM Sans',system-ui,sans-serif;color:#b8bec9}
.bl-cover figcaption strong{font:600 22px/1.2 'Source Serif 4',Georgia,serif;color:var(--site-ink)}
.bl-cover figcaption small{margin-left:auto;font:500 11px 'JetBrains Mono',ui-monospace,monospace;letter-spacing:.06em;text-transform:uppercase;color:#6f7684}
.bl-item img{aspect-ratio:16/9;object-fit:cover}

/* keep the blog column centred (site-system.css resets main max-width) */
body.site-wide main.bl-wrap{max-width:1160px!important;margin-left:auto!important;margin-right:auto!important}

/* internal links: related services in the contact box, related posts above prev/next */
.bl-usl{margin:0 0 20px}
.bl-usl .bl-label{margin:0 0 8px}
.bl-usl ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.bl-usl a{display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border:1px solid var(--site-line);border-radius:6px;color:var(--site-cobalt-light,#8db4ff);font:500 14.5px 'DM Sans',system-ui,sans-serif;text-decoration:none;transition:border-color .15s ease,color .15s ease}
.bl-usl a:hover{border-color:rgba(255,255,255,.3);color:var(--site-ink)}
.bl-related{margin:0 0 40px;padding-top:28px;border-top:1px solid var(--site-line)}
.bl-related h2{font:600 28px/1.2 'Source Serif 4',Georgia,serif;margin:6px 0 18px}
.bl-related ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:0 28px}
.bl-related a{display:block;padding:14px 0;border-top:1px solid var(--site-line);text-decoration:none}
.bl-related strong{display:block;font:600 18px/1.3 'Source Serif 4',Georgia,serif;color:var(--site-ink)}
.bl-related a:hover strong{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.bl-related span{display:block;margin-top:6px;color:#9aa1ad;font-size:14px;line-height:1.5}
@media(max-width:860px){.bl-related ul{grid-template-columns:1fr}}