/* Quantaliez blog — same palette as the site: void #05060B, paper #F6F6F4, quantum cyan #00D7FF, neutral #A1A6B2 */
:root { --void:#05060B; --paper:#F6F6F4; --q:#00D7FF; --muted:#A1A6B2; --line:rgba(246,246,244,.12); --card:#0C0E15; --mono:'JetBrains Mono',ui-monospace,monospace; color-scheme:dark; }
*{box-sizing:border-box} html{scroll-behavior:smooth} @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--void);color:var(--paper);font:400 17px/1.7 Inter,system-ui,-apple-system,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased}
a{color:var(--q)} a:focus-visible,button:focus-visible{outline:2px solid var(--q);outline-offset:3px}
img{max-width:100%;height:auto;display:block}
.qb-skip{position:absolute;left:-9999px}.qb-skip:focus{left:16px;top:16px;z-index:10;background:var(--q);color:var(--void);padding:8px 12px}
.qb-nav{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px clamp(16px,5vw,64px);background:rgba(5,6,11,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.qb-brand{display:flex;align-items:center;gap:10px;text-decoration:none}.qb-brand-tile{width:36px;height:36px;border-radius:9px;background:var(--paper);display:grid;place-items:center}.qb-wordmark{height:16px;width:auto}
.qb-nav nav{display:flex;gap:28px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase}.qb-nav nav a{color:var(--muted);text-decoration:none}.qb-nav nav a:hover,.qb-nav nav a[aria-current]{color:var(--paper)}
.qb-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;background:var(--q);color:var(--void);font:700 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;text-decoration:none;border-radius:0;white-space:nowrap}.qb-btn:hover{background:var(--paper)}
@media (max-width:860px){.qb-nav nav{display:none}.qb-wordmark{display:none}}
.qb-main{width:min(1180px,100% - 32px);margin:0 auto;padding-bottom:96px}
.qb-kicker{font:700 12px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--q)}
.qb-hero{padding:clamp(56px,9vw,112px) 0 40px;max-width:860px}
.qb-hero h1{margin:16px 0 18px;font-size:clamp(2.6rem,7vw,5rem);line-height:.98;font-weight:900;letter-spacing:-.045em;text-transform:uppercase}
.qb-lead{color:var(--muted);font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.6;margin:0 0 8px;max-width:60ch}
.qb-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}.qb-tags a{padding:8px 14px;border:1px solid var(--line);color:var(--muted);text-decoration:none;font:600 13px/1 Inter,sans-serif;border-radius:999px}.qb-tags a:hover,.qb-tags a[aria-current]{border-color:var(--q);color:var(--paper)}
.qb-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.qb-card{border:1px solid var(--line);background:linear-gradient(180deg,rgba(246,246,244,.035),rgba(246,246,244,.01));transition:border-color .3s,transform .3s}.qb-card:hover{border-color:rgba(0,215,255,.45);transform:translateY(-3px)}
.qb-card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}.qb-card-img{aspect-ratio:16/9;overflow:hidden;background:#0b0d14}.qb-card-img img{width:100%;height:100%;object-fit:cover}
.qb-card-body{padding:22px 22px 26px;display:grid;gap:10px}.qb-card h2{margin:0;font-size:1.3rem;line-height:1.2;font-weight:800;letter-spacing:-.02em}.qb-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.6}
.qb-meta{font:500 11.5px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
@media (min-width:900px){.qb-grid.has-feature .is-feature{grid-column:1/-1}.qb-grid.has-feature .is-feature .qb-card-link{display:grid;grid-template-columns:1.25fr 1fr}.qb-grid.has-feature .is-feature .qb-card-img{aspect-ratio:auto;min-height:340px}.qb-grid.has-feature .is-feature .qb-card-body{align-content:center;padding:40px}.qb-grid.has-feature .is-feature h2{font-size:2.1rem}}
.qb-empty{padding:40px;border:1px dashed var(--line);color:var(--muted)}
.qb-pager{display:flex;justify-content:center;gap:24px;align-items:center;margin-top:40px;font-family:var(--mono);font-size:13px}.qb-pager a{color:var(--paper)}
.qb-notice{--tone:var(--q);margin:24px 0 0;padding:12px 16px;border:1px solid rgba(255,255,255,.12);border-left:2px solid var(--tone);background:rgba(255,255,255,.02);font-size:15px;line-height:1.55}.qb-notice b{display:block;margin-bottom:2px;font:700 11px/1.4 var(--mono,monospace);letter-spacing:.18em;text-transform:uppercase;color:var(--tone)}.qb-notice a{color:var(--paper);font-weight:600;text-decoration:underline;text-decoration-color:var(--tone);text-underline-offset:3px}.qb-notice.qb-alert{--tone:#ffb547}
.qb-article{padding-top:clamp(40px,7vw,88px)}.qb-article-head{max-width:860px}
.qb-crumbs{display:flex;gap:10px;font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.qb-crumbs a{color:var(--q);text-decoration:none}
.qb-article h1{margin:18px 0 18px;font-size:clamp(2.2rem,5.6vw,4rem);line-height:1.02;font-weight:900;letter-spacing:-.04em}
.qb-cover{margin:36px 0 0;border:1px solid var(--line);overflow:hidden}.qb-cover img{width:100%;max-height:620px;object-fit:cover}
.qb-layout{display:grid;gap:48px;margin-top:48px}@media (min-width:1100px){.qb-layout{grid-template-columns:220px minmax(0,720px);justify-content:center}}
.qb-toc{align-self:start;position:sticky;top:96px;font-size:14px;border-left:1px solid var(--line);padding-left:16px}.qb-toc p{margin:0 0 10px;font:700 11px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--q)}.qb-toc ol{list-style:none;margin:0;padding:0;display:grid;gap:8px}.qb-toc a{color:var(--muted);text-decoration:none}.qb-toc a:hover{color:var(--paper)}
@media (max-width:1099px){.qb-toc{display:none}}
.qb-prose{min-width:0;max-width:720px}.qb-prose>*:first-child{margin-top:0}
.qb-prose h2{margin:2.2em 0 .6em;font-size:1.75rem;line-height:1.2;font-weight:800;letter-spacing:-.02em;scroll-margin-top:96px}.qb-prose h3{margin:1.8em 0 .5em;font-size:1.3rem;font-weight:700}
.qb-prose p,.qb-prose ul,.qb-prose ol{margin:0 0 1.15em;color:#D7D9DE}.qb-prose li{margin:.35em 0}.qb-prose li::marker{color:var(--q)}
.qb-prose a{text-decoration:underline;text-decoration-color:rgba(0,215,255,.45);text-underline-offset:3px}
.qb-prose code{font-family:var(--mono);font-size:.88em;background:rgba(246,246,244,.07);padding:.1em .35em}
.qb-prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.qb-figure{margin:2em 0}.qb-figure img{width:100%;border:1px solid var(--line)}.qb-figure figcaption{margin-top:10px;font-size:14px;color:var(--muted)}
.qb-quote{margin:2em 0;padding:4px 0 4px 24px;border-left:2px solid var(--q)}.qb-quote p{font-size:1.25rem;line-height:1.5;color:var(--paper)}.qb-quote cite{font:500 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-style:normal}
.qb-callout{margin:2em 0;padding:20px 22px;border:1px solid var(--line);background:rgba(246,246,244,.03)}.qb-callout p:last-child{margin-bottom:0}.qb-callout-title{display:block;margin-bottom:8px;font:700 12px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--q)}
.qb-result{border-color:rgba(0,215,255,.45);background:rgba(0,215,255,.06)}.qb-warning{border-color:rgba(255,190,90,.45);background:rgba(255,190,90,.06)}.qb-warning .qb-callout-title{color:#ffc46b}
.qb-linkcard{display:grid;grid-template-columns:1fr auto;gap:4px 16px;margin:2em 0;padding:20px 22px;border:1px solid var(--line);color:var(--paper)!important;text-decoration:none!important;transition:border-color .25s}.qb-linkcard:hover{border-color:var(--q)}.qb-linkcard-label{font-weight:700}.qb-linkcard-note{grid-column:1;color:var(--muted);font-size:15px}.qb-linkcard-arrow{grid-row:1/span 2;grid-column:2;align-self:center;color:var(--q);font-size:22px}
.qb-code{margin:2em 0;padding:20px;overflow-x:auto;background:#0b0d14;border:1px solid var(--line);font:14px/1.6 var(--mono);color:#E4E6EA;position:relative}.qb-code[data-lang]::before{content:attr(data-lang);position:absolute;right:12px;top:8px;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}.qb-code code{background:none;padding:0}
.qb-post-tags{display:flex;flex-wrap:wrap;gap:8px;margin:40px 0 0}.qb-post-tags a{padding:6px 12px;border:1px solid var(--line);border-radius:999px;font-size:13px;text-decoration:none;color:var(--muted)}.qb-post-tags a:hover{color:var(--paper);border-color:var(--q)}
.qb-share{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line);font-size:14px}.qb-share span{font:700 11px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-right:6px}.qb-share a,.qb-share button{padding:8px 12px;border:1px solid var(--line);background:transparent;color:var(--paper);font:500 13px/1 Inter,sans-serif;text-decoration:none;cursor:pointer}.qb-share a:hover,.qb-share button:hover{border-color:var(--q)}
.qb-cta{display:grid;gap:20px;align-items:center;margin:72px auto 0;max-width:1000px;padding:clamp(24px,4vw,44px);border:1px solid var(--line);background:radial-gradient(80% 140% at 100% 0%,rgba(0,215,255,.1),transparent 60%)}@media (min-width:800px){.qb-cta{grid-template-columns:1fr auto}}.qb-cta p{margin:10px 0 0;font-size:1.4rem;font-weight:700;line-height:1.25;letter-spacing:-.02em}
.qb-related{max-width:1000px;margin:56px auto 0}.qb-related h2{font-size:1rem;font-family:var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--q)}.qb-related ul{list-style:none;margin:0;padding:0;display:grid;gap:0;border-top:1px solid var(--line)}.qb-related a{display:flex;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--paper);text-decoration:none}.qb-related span{color:var(--muted);font-size:14px;white-space:nowrap}
.qb-preview{margin:0 0 24px;padding:10px 14px;background:#2a2410;border:1px solid rgba(255,196,107,.4);color:#ffd88a;font:600 13px/1.4 var(--mono)}
/* Template accents */
.qb-tpl-announcement .qb-article-head::before{content:'Announcement';display:inline-block;margin-bottom:6px;padding:6px 12px;background:var(--q);color:var(--void);font:700 11px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase}
.qb-tpl-tutorial .qb-prose ol{counter-reset:step;list-style:none;padding:0}.qb-tpl-tutorial .qb-prose ol>li{counter-increment:step;position:relative;padding:14px 0 14px 52px;border-top:1px solid var(--line)}.qb-tpl-tutorial .qb-prose ol>li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:14px;font:700 14px/1.6 var(--mono);color:var(--q)}
.qb-tpl-interview .qb-quote p{font-size:1.5rem;font-weight:600;letter-spacing:-.01em}
.qb-tpl-insight .qb-prose h2:last-of-type+ul{font-size:14px;color:var(--muted)}
.qb-footer{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:28px clamp(16px,5vw,64px);border-top:1px solid var(--line);color:var(--muted);font-size:13px}.qb-footer p{margin:0}.qb-footer a{color:var(--muted)}

/* Announcement (console banner): same quiet card as the main site, bottom-left */
.qb-topbar{--tone:var(--q);position:fixed;z-index:20;left:20px;bottom:max(20px,env(safe-area-inset-bottom));width:min(400px,calc(100vw - 40px));display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:'tag close' 'msg msg' 'link link';gap:6px 12px;padding:14px 10px 16px 18px;background:#0a0c12;border:1px solid rgba(255,255,255,.12);border-left:2px solid var(--tone);box-shadow:0 18px 50px -18px rgba(0,0,0,.8)}
.qb-topbar.qb-alert{--tone:#ffb547}
.qb-topbar .tag{grid-area:tag;align-self:center;font:700 11px/1 var(--mono,monospace);letter-spacing:.18em;text-transform:uppercase;color:var(--tone)}
.qb-topbar p{grid-area:msg;margin:0;padding-right:8px;font-size:15px;line-height:1.5}
.qb-topbar a{grid-area:link;justify-self:start;font-size:14px;font-weight:600;color:var(--paper);text-decoration:underline;text-decoration-color:var(--tone);text-underline-offset:4px}
.qb-topbar button{grid-area:close;display:grid;place-items:center;width:32px;height:32px;margin:-6px 0;border:0;background:transparent;color:var(--muted);cursor:pointer}
.qb-topbar button:hover{color:var(--paper);background:rgba(255,255,255,.06)}
@media (max-width:560px){.qb-topbar{left:12px;right:12px;bottom:max(12px,env(safe-area-inset-bottom));width:auto}}
.qb-footer .qb-social{display:flex;flex-wrap:wrap;gap:14px}

/* Section links on headings: cite or share one section */
.qb-anchor{margin-left:.35em;color:var(--muted);text-decoration:none;font-weight:400;opacity:0;transition:opacity .15s}
.qb-prose h2:hover .qb-anchor,.qb-prose h3:hover .qb-anchor,.qb-anchor:focus-visible{opacity:1}.qb-anchor:hover{color:var(--q)}
@media (hover:none){.qb-anchor{opacity:.5}}
.qb-meta a{color:inherit;text-decoration:none}.qb-meta a:hover{color:var(--q)}
/* Cite this article */
.qb-cite{margin-top:20px;border:1px solid var(--line)}
.qb-cite summary{padding:14px 16px;cursor:pointer;font:700 11px/1.4 var(--mono,monospace);letter-spacing:.16em;text-transform:uppercase;color:var(--paper);list-style:none}
.qb-cite summary::-webkit-details-marker{display:none}.qb-cite summary::after{content:'+';float:right;color:var(--q)}.qb-cite[open] summary::after{content:'−'}
.qb-cite summary:focus-visible{outline:2px solid var(--q);outline-offset:-2px}
.qb-cite-note{margin:0;padding:0 16px 12px;font-size:14px;color:var(--muted)}
.qb-cite dl{margin:0;padding:0 16px 16px;display:grid;gap:10px}
.qb-cite dl>div{display:grid;gap:4px}
.qb-cite dt{font:700 10.5px/1.4 var(--mono,monospace);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.qb-cite dd{margin:0;display:flex;gap:8px;align-items:flex-start}
.qb-cite code{flex:1;min-width:0;padding:10px 12px;background:#07080e;border:1px solid var(--line);font:13px/1.55 var(--mono,monospace);color:var(--paper);white-space:pre-wrap;overflow-wrap:anywhere}
.qb-cite button{flex:none;padding:9px 12px;border:1px solid var(--line);background:transparent;color:var(--paper);font:500 13px/1 Inter,sans-serif;cursor:pointer}.qb-cite button:hover{border-color:var(--q)}
/* Author */
.qb-author{margin-top:28px;padding:18px 20px;border:1px solid var(--line);border-left:2px solid var(--q)}
.qb-author p{margin:0 0 6px;font-size:15px;line-height:1.6;color:var(--muted)}.qb-author p:last-child{margin:0}
.qb-author .qb-kicker{margin-bottom:8px}.qb-author strong{color:var(--paper)}.qb-author a{color:var(--paper)}