/* ==========================================================================
   QazaqEt blog. Builds on site.css tokens: paper, cobalt, ink, blueprint lines.
   ========================================================================== */
.pg-bl{--ac:var(--cobalt)}
.bl-kick{display:inline-flex;align-items:center;gap:8px;font:500 .74rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ac,var(--cobalt))}
.bl-kick::before{content:"";width:18px;height:1.5px;background:currentColor}

/* ---------- hero (hub, category, subcategory) ---------- */
.bl-ph{background:radial-gradient(50% 70% at 95% 0%,color-mix(in srgb,var(--ac,#2A5BF0) 16%,transparent),transparent 70%),linear-gradient(180deg,#fff,var(--paper))}
.bl-ph::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(42,91,240,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(42,91,240,.06) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);mask-image:linear-gradient(180deg,#000,transparent 85%)}
.bl-ph .wrap{position:relative;z-index:1}
.bl-hero{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:clamp(28px,5vw,80px);align-items:end}
.bl-hero h1{font-weight:300;font-size:clamp(2.2rem,1.1rem + 3.2vw,4.1rem);line-height:1.03;letter-spacing:-.045em;max-width:15ch;margin-top:14px}
.bl-hero .lede{max-width:56ch}
.bl-author-line{display:flex;align-items:center;gap:12px;margin-top:26px;color:var(--ink-2);font-size:.95rem}
.bl-ava{flex:none;display:inline-grid;place-items:center;width:38px;height:38px;border-radius:50%;background:linear-gradient(140deg,#4FB2F5,#2A5BF0 55%,#8A7CF5);color:#fff;font:500 .74rem/1 var(--f-display);letter-spacing:.02em;box-shadow:0 6px 16px -8px rgba(42,91,240,.7)}
.bl-ava-l{width:64px;height:64px;font-size:1rem}
.bl-hero-facts{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.bl-hero-facts li{padding:18px 20px;border-radius:20px;background:rgba(255,255,255,.75);box-shadow:inset 0 0 0 1px var(--line);backdrop-filter:blur(8px)}
.bl-hero-facts b{display:block;font:300 2.3rem/1 var(--f-display);letter-spacing:-.04em;color:var(--ink)}
.bl-hero-facts span{display:block;margin-top:8px;font-size:.86rem;color:var(--ink-3)}
.bl-hero-c,.bl-hero-s{align-items:start}
.bl-hero-s{grid-template-columns:1fr}
.bl-subcards{display:grid;gap:10px}
.bl-subcard{position:relative;display:grid;gap:4px;padding:18px 52px 18px 20px;border-radius:18px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s}
.bl-subcard b{font:500 1.02rem/1.25 var(--f-text)}
.bl-subcard span{font-size:.88rem;color:var(--ink-3);line-height:1.45}
.bl-subcard i{position:absolute;right:18px;top:50%;width:22px;height:22px;transform:translateY(-50%);color:var(--ac)}
.bl-subcard:hover{transform:translateX(4px);box-shadow:inset 0 0 0 1px var(--ac),0 14px 34px -22px rgba(13,27,46,.4)}

/* ---------- chips and filters ---------- */
.bl-filt{display:grid;gap:12px;margin-bottom:28px}
.bl-chips{display:flex;flex-wrap:wrap;gap:8px}
.bl-chip{display:inline-flex;align-items:center;gap:8px;min-height:40px;padding:0 16px;border:0;border-radius:999px;background:#fff;box-shadow:inset 0 0 0 1px var(--line-2);font:500 .9rem/1 var(--f-text);color:var(--ink-2);cursor:pointer;text-decoration:none;transition:background .2s,color .2s,box-shadow .2s}
.bl-chip .num{font:500 .72rem/1 var(--f-mono);color:var(--ink-3)}
.bl-chip:hover{box-shadow:inset 0 0 0 1px var(--ink)}
.bl-chip[aria-pressed="true"],.bl-chip.on{background:var(--ink);color:#fff;box-shadow:none}
.bl-chip[aria-pressed="true"] .num,.bl-chip.on .num{color:rgba(255,255,255,.6)}
.bl-chip[data-k="cat"][aria-pressed="true"]{background:var(--ac)}
.bl-subchips .bl-chip{min-height:34px;font-size:.84rem;background:var(--paper)}
.bl-sibs{margin-top:24px}
.bl-search{position:relative;display:block;max-width:420px}
.bl-search svg{position:absolute;left:16px;top:50%;width:18px;height:18px;transform:translateY(-50%);color:var(--ink-3)}
.bl-search input{width:100%;min-height:46px;padding:0 18px 0 44px;border:0;border-radius:999px;background:#fff;box-shadow:inset 0 0 0 1px var(--line-2);font-size:.95rem}
.bl-search input:focus{outline:none;box-shadow:inset 0 0 0 2px var(--cobalt)}
.bl-empty{padding:40px 0;color:var(--ink-3)}
.bl-more-w{display:flex;justify-content:center;margin-top:32px}

/* ---------- cards ---------- */
.bl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.bl-card{position:relative;min-width:0}
.bl-card[hidden],.bl-subchips[hidden],.bl-chip[hidden],.bl-more[hidden],.bl-empty[hidden]{display:none}
.bl-card-a{display:flex;flex-direction:column;height:100%;border-radius:24px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;overflow:hidden;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.bl-card-a:hover{transform:translateY(-5px);box-shadow:inset 0 0 0 1px var(--line-2),var(--sh-2)}
.bl-card-pic{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--mist)}
.bl-card-pic img{width:100%;height:100%;object-fit:cover;transition:transform .8s cubic-bezier(.2,.8,.2,1)}
.bl-card-a:hover .bl-card-pic img{transform:scale(1.045)}
.bl-card-b{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1}
.bl-c-cat,.bl-c-sub{align-self:flex-start;display:inline-flex;align-items:center;gap:7px;font:500 .72rem/1 var(--f-mono);letter-spacing:.03em;color:var(--ac,var(--cobalt));text-decoration:none;text-transform:uppercase}
.bl-c-cat::before{content:"";width:7px;height:7px;border-radius:2px;background:currentColor;transform:rotate(45deg)}
.bl-card-t{font:500 1.12rem/1.3 var(--f-text);letter-spacing:-.01em;color:var(--ink);text-wrap:balance}
.bl-card-x{font-size:.92rem;line-height:1.55;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.bl-card-m{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;margin-top:auto;padding-top:8px;font:500 .74rem/1 var(--f-mono);color:var(--ink-3)}
.bl-card-m span{display:inline-flex;align-items:center;gap:6px}
.bl-card-m svg{width:14px;height:14px}

/* featured */
.bl-sec-feat{padding-block:clamp(36px,5vw,64px)}
.bl-feat-a{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);border-radius:30px;overflow:hidden;background:var(--ink);color:#fff;text-decoration:none;box-shadow:var(--sh-2);transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.bl-feat-a:hover{transform:translateY(-4px)}
.bl-feat-pic{position:relative;min-height:340px;overflow:hidden}
.bl-feat-pic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform 1s cubic-bezier(.2,.8,.2,1)}
.bl-feat-a:hover .bl-feat-pic img{transform:scale(1.04)}
.bl-feat-b{display:flex;flex-direction:column;gap:14px;padding:clamp(26px,3.6vw,52px);background:radial-gradient(80% 90% at 100% 0%,rgba(63,168,242,.28),transparent 70%),radial-gradient(70% 80% at 0% 100%,rgba(138,124,245,.22),transparent 70%),#0D1B2E}
.bl-feat-b .bl-kick{color:#9DD6FF}
.bl-feat-b .bl-c-cat{color:#C9D9FF}
.bl-feat-b h2{font-weight:300;font-size:clamp(1.6rem,1.1rem + 1.4vw,2.4rem);line-height:1.1;letter-spacing:-.035em}
.bl-feat-b p{color:rgba(255,255,255,.76);line-height:1.6}
.bl-feat-b .bl-card-m{color:rgba(255,255,255,.6)}
.bl-feat-b .btn{align-self:flex-start;margin-top:6px;background:#fff;color:var(--ink)}
.bl-feat-b .btn svg{width:18px;height:18px}

/* rubrics */
.bl-rubs{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.bl-rubs-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.bl-rub{position:relative;display:flex;flex-direction:column;gap:10px;padding:24px 22px;border-radius:24px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;overflow:hidden;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.bl-rub::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--ac)}
.bl-rub:hover{transform:translateY(-4px);box-shadow:inset 0 0 0 1px var(--ac),var(--sh-1)}
.bl-rub-n{font:500 .74rem/1 var(--f-mono);color:var(--ac)}
.bl-rub b{font:400 1.18rem/1.2 var(--f-display);letter-spacing:-.025em}
.bl-rub>span{font-size:.88rem;line-height:1.5;color:var(--ink-2)}
.bl-rub-subs{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:6px}
.bl-rub-subs i{font-style:normal;font-size:.74rem;padding:4px 9px;border-radius:999px;background:#fff;color:var(--ink-2);box-shadow:inset 0 0 0 1px var(--line)}
.bl-rub-s{background:#fff}

/* ---------- post head ---------- */
.bl-post-h{position:relative;padding-top:calc(76px + clamp(26px,3.4vw,56px));background:radial-gradient(40% 60% at 90% 0%,color-mix(in srgb,var(--ac) 14%,transparent),transparent 70%),linear-gradient(180deg,#fff,var(--paper) 70%,#fff 70%)}
.bl-post-hin{max-width:900px}
.bl-post-cats{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-bottom:18px}
.bl-post-cats .bl-c-sub{color:var(--ink-3)}
.bl-post-cats .bl-c-sub::before{content:"/";margin-right:4px;color:var(--line-2)}
.bl-post-cats a:hover{text-decoration:underline}
.bl-post-h h1{font-weight:300;font-size:clamp(2rem,1.05rem + 2.7vw,3.5rem);line-height:1.06;letter-spacing:-.04em;max-width:22ch}
.bl-post-h .lede{max-width:62ch}
.bl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px;margin-top:28px;font-size:.9rem;color:var(--ink-2)}
.bl-meta-a{display:grid;gap:2px;margin-left:-14px}
.bl-meta-a b{font-weight:600;color:var(--ink)}
.bl-meta-a span{font-size:.8rem;color:var(--ink-3)}
.bl-meta-i{display:inline-flex;align-items:center;gap:8px;font:500 .8rem/1 var(--f-mono);color:var(--ink-3)}
.bl-meta-i svg{width:16px;height:16px}
.bl-cover{position:relative;margin:clamp(30px,4vw,52px) 0 0;border-radius:28px;overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/8;background:var(--mist)}
.bl-cover img{width:100%;height:100%;object-fit:cover}
.bl-cover-cr{position:absolute;right:14px;bottom:12px;padding:5px 11px;border-radius:999px;background:rgba(13,27,46,.5);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:rgba(255,255,255,.9);font:500 .7rem/1.3 var(--f-mono);letter-spacing:.01em}
.bl-cover-cr a{color:inherit;text-decoration:none}
.bl-cover-cr a:hover{text-decoration:underline}

/* ---------- post body ---------- */
.bl-post-sec{padding-top:clamp(44px,5vw,72px)}
.bl-post-grid{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:clamp(28px,5vw,84px);align-items:start}
.bl-art{max-width:760px}
.bl-art.prose h2{margin-top:52px;scroll-margin-top:100px}
.bl-art.prose h3{margin-top:30px;font:500 1.15rem/1.3 var(--f-text);letter-spacing:-.01em}
.bl-art.prose p{font-size:1.06rem;line-height:1.75}
.bl-art.prose p a,.bl-art.prose li a{color:var(--cobalt);text-decoration-thickness:1px;text-underline-offset:3px}
.bl-art.prose p a:hover{text-decoration-thickness:2px}
.bl-art.prose b{color:var(--ink);font-weight:600}
.bl-art.prose ol.bl-ol{margin:16px 0 0;padding:0;list-style:none;counter-reset:o;display:grid;gap:10px}
.bl-art.prose ol.bl-ol li{position:relative;padding-left:34px;color:var(--ink-2);counter-increment:o}
.bl-art.prose ol.bl-ol li::before{content:counter(o);position:absolute;left:0;top:.1em;width:24px;height:24px;border-radius:8px;background:var(--cobalt-50);color:var(--cobalt);font:500 .74rem/24px var(--f-mono);text-align:center}
.bl-art>*:first-child{margin-top:0}

/* stats */
.bl-stats{display:grid;grid-template-columns:repeat(var(--n,3),minmax(0,1fr));gap:12px;margin:32px 0}
.bl-stat{padding:20px 18px 18px;border-radius:20px;background:linear-gradient(180deg,var(--cobalt-50),#fff);box-shadow:inset 0 0 0 1px var(--line)}
.bl-stat b{display:flex;align-items:baseline;gap:6px;font:300 clamp(1.8rem,1.3rem + 1.2vw,2.5rem)/1 var(--f-display);letter-spacing:-.04em;color:var(--cobalt)}
.bl-stat small{font:500 .82rem/1 var(--f-text);letter-spacing:0;color:var(--ink-2)}
.bl-stat span{display:block;margin-top:10px;font-size:.86rem;line-height:1.45;color:var(--ink-2)}

/* callouts */
.bl-call{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;margin:30px 0;padding:22px 24px;border-radius:22px;background:var(--cobalt-50);box-shadow:inset 3px 0 0 var(--cobalt)}
.bl-call-i{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#fff;color:var(--cobalt)}
.bl-call-i svg{width:22px;height:22px}
.bl-call-k{display:block;font:500 .7rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--cobalt)}
.bl-call h4{margin-top:8px;font:600 1.02rem/1.35 var(--f-text);letter-spacing:0}
.bl-art.prose .bl-call p{margin-top:6px;font-size:.98rem;line-height:1.65}
.bl-call-warn{background:var(--gold-50);box-shadow:inset 3px 0 0 var(--gold)}
.bl-call-warn .bl-call-i,.bl-call-warn .bl-call-k{color:var(--gold-d)}
.bl-call-fact{background:#F1EFFE;box-shadow:inset 3px 0 0 var(--iris)}
.bl-call-fact .bl-call-i,.bl-call-fact .bl-call-k{color:#6455D8}
.bl-call-note{background:#fff;box-shadow:inset 0 0 0 1px var(--line),inset 3px 0 0 var(--ink)}
.bl-call-note .bl-call-i{background:var(--paper)}
.bl-call-note .bl-call-i,.bl-call-note .bl-call-k{color:var(--ink)}

/* tables */
.bl-tbl{margin:30px 0}
.bl-tbl .tbl{min-width:520px;font-size:.92rem}
.bl-tbl .tbl td{color:var(--ink-2)}
.bl-tbl figcaption,.bl-chart figcaption,.bl-fig figcaption{margin-top:10px;font-size:.84rem;line-height:1.5;color:var(--ink-3)}

/* steps */
.bl-steps{list-style:none;margin:30px 0;padding:0;display:grid;gap:0;counter-reset:s}
.bl-steps li{position:relative;display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;padding-bottom:22px}
.bl-steps li:not(:last-child)::before{content:"";position:absolute;left:27px;top:52px;bottom:4px;width:1.5px;background:linear-gradient(var(--ice-2),transparent)}
.bl-step-n{display:grid;place-items:center;width:56px;height:56px;border-radius:18px;background:#fff;box-shadow:inset 0 0 0 1px var(--line-2);font:500 .95rem/1 var(--f-mono);color:var(--cobalt)}
.bl-steps b{display:block;margin-top:6px;font:600 1.04rem/1.35 var(--f-text)}
.bl-art.prose .bl-steps p{margin-top:6px;font-size:.98rem;line-height:1.65}
.bl-steps li:hover .bl-step-n{background:var(--cobalt);color:#fff;box-shadow:none}

/* compare */
.bl-cmp{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:30px 0 0}
.bl-cmp-c{padding:22px;border-radius:22px;background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.bl-cmp-c.a{background:linear-gradient(180deg,var(--cobalt-50),#fff 60%)}
.bl-cmp-c.b{background:linear-gradient(180deg,var(--gold-50),#fff 60%)}
.bl-cmp-c h4{font:600 1.02rem/1.3 var(--f-text);letter-spacing:0}
.bl-art.prose .bl-cmp-c ul{margin-top:14px;gap:10px}
.bl-art.prose .bl-cmp-c li{display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;padding:0;font-size:.95rem;line-height:1.5}
.bl-art.prose .bl-cmp-c li::before{display:none}
.bl-cmp-c li i{display:grid;place-items:center;width:20px;height:20px;margin-top:2px;border-radius:6px;background:var(--cobalt);color:#fff}
.bl-cmp-c.b li i{background:var(--gold)}
.bl-cmp-c li svg{width:13px;height:13px}
.bl-art.prose .bl-cmp-note{margin:12px 0 30px;font-size:.9rem;color:var(--ink-3)}

/* checklist */
.bl-chk{margin:30px 0;padding:22px 24px;border-radius:24px;background:#fff;box-shadow:inset 0 0 0 1px var(--line),var(--sh-1)}
.bl-chk-top{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:8px 16px}
.bl-chk-top b{font:600 1.04rem/1.3 var(--f-text)}
.bl-chk-n{font:500 .84rem/1 var(--f-mono);color:var(--cobalt)}
.bl-chk-bar{grid-column:1/-1;display:block;height:6px;border-radius:9px;background:var(--mist);overflow:hidden}
.bl-chk-bar i{display:block;height:100%;width:0;border-radius:9px;background:var(--grad-iri);transition:width .4s cubic-bezier(.2,.8,.2,1)}
.bl-chk-reset{grid-row:1;grid-column:3}
.bl-art.prose .bl-chk ul{margin-top:14px;gap:2px}
.bl-art.prose .bl-chk li{padding:0}
.bl-art.prose .bl-chk li::before{display:none}
.bl-chk label{display:grid;grid-template-columns:24px minmax(0,1fr);gap:12px;padding:11px 8px;border-radius:12px;cursor:pointer;color:var(--ink-2);line-height:1.5;transition:background .2s}
.bl-chk label:hover{background:var(--paper)}
.bl-chk input{appearance:none;width:22px;height:22px;margin:1px 0 0;border-radius:7px;box-shadow:inset 0 0 0 1.5px var(--line-2);background:#fff center/14px no-repeat;cursor:pointer;transition:background-color .2s,box-shadow .2s}
.bl-chk input:checked{background-color:var(--cobalt);box-shadow:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.2 4.2L19 7'/%3E%3C/svg%3E")}
.bl-chk input:checked+span{color:var(--ink-3);text-decoration:line-through;text-decoration-color:var(--line-2)}
.bl-art.prose .bl-chk-note{margin-top:10px;font-size:.82rem;color:var(--ink-3)}

/* chart */
.bl-chart{margin:32px 0;padding:22px 22px 18px;border-radius:24px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);background-image:linear-gradient(rgba(42,91,240,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(42,91,240,.035) 1px,transparent 1px);background-size:24px 24px}
.bl-chart-h{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:6px 16px}
.bl-chart-h b{font:600 1.02rem/1.35 var(--f-text)}
.bl-unit{font:500 .74rem/1 var(--f-mono);color:var(--ink-3)}
.bl-leg{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:10px;font-size:.82rem;color:var(--ink-2)}
.bl-leg span{display:inline-flex;align-items:center;gap:7px}
.bl-leg i{width:12px;height:12px;border-radius:4px}
.bl-chart-c{overflow-x:auto;margin-top:8px}
.bl-chart-svg{display:block;width:100%;min-width:520px;height:auto}
.bl-chart-svg .gl{stroke:var(--line);stroke-width:1}
.bl-chart-svg .base{stroke:var(--ink-3);stroke-width:1.2}
.bl-chart-svg .ax{font:500 11px var(--f-mono);fill:var(--ink-3)}
.bl-chart-svg .lx{font:500 12px var(--f-text);fill:var(--ink-2)}
.bl-chart-svg .vl{font:600 12px var(--f-mono);fill:var(--ink)}
.bl-chart-svg .br rect{transition:opacity .2s}
.bl-chart-svg .br:hover rect{opacity:.8}
.js .bl-chart.rv .br rect{transform-origin:bottom;transform-box:fill-box;transform:scaleY(0);transition:transform 1s cubic-bezier(.2,.8,.2,1)}
.js .bl-chart.rv.in .br rect{transform:none}
.js .bl-chart.rv .ln{stroke-dasharray:2400;stroke-dashoffset:2400;transition:stroke-dashoffset 1.6s cubic-bezier(.2,.8,.2,1)}
.js .bl-chart.rv.in .ln{stroke-dashoffset:0}

/* product cards */
.bl-skus{margin:32px 0;padding:20px;border-radius:24px;background:radial-gradient(70% 120% at 100% 0%,rgba(63,168,242,.14),transparent 60%),var(--paper);box-shadow:inset 0 0 0 1px var(--line)}
.bl-skus-h{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:14px}
.bl-skus-h b{font:600 1rem/1.3 var(--f-text)}
.bl-skus-h a{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;font-weight:600;color:var(--cobalt);text-decoration:none}
.bl-skus-h svg{width:16px;height:16px}
.bl-skus-row{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.bl-sku{position:relative;display:grid;grid-template-columns:52px minmax(0,1fr);gap:10px;align-items:center;padding:12px 14px 12px 10px;border-radius:18px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);text-decoration:none;transition:transform .3s cubic-bezier(.2,.8,.2,1),box-shadow .3s}
.bl-sku:hover{transform:translateY(-3px);box-shadow:inset 0 0 0 1px var(--cobalt),var(--sh-1)}
.bl-sku-pic{display:grid;place-items:end center;height:78px;overflow:hidden}
.bl-sku-pic img{height:100%;width:auto;object-fit:contain;transform:scale(var(--k,1));transform-origin:bottom}
.bl-sku-b{display:grid;gap:3px}
.bl-sku-b b{font:300 1.5rem/1 var(--f-display);letter-spacing:-.04em}
.bl-sku-b small{margin-left:3px;font:500 .8rem var(--f-text);letter-spacing:0;color:var(--ink-3)}
.bl-sku-b span{font-size:.8rem;color:var(--ink-2)}
.bl-sku-b .bl-sku-m{color:var(--ink-3)}
.bl-sku-hit{position:absolute;right:8px;top:8px;font:600 .62rem/1 var(--f-text);padding:4px 7px;border-radius:999px;background:var(--gold-50);color:var(--gold-d)}

/* formula */
.bl-formula{margin:30px 0;padding:22px 24px;border-radius:22px;background:var(--ink);color:#fff;background-image:radial-gradient(60% 120% at 100% 0%,rgba(63,168,242,.3),transparent 60%)}
.bl-formula-k{font:500 .7rem/1 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:#9DD6FF}
.bl-formula code{display:block;margin-top:12px;font:500 clamp(1rem,.9rem + .5vw,1.3rem)/1.45 var(--f-mono);color:#fff;white-space:normal}
.bl-art.prose .bl-formula p{margin-top:12px;color:rgba(255,255,255,.75);font-size:.95rem;line-height:1.6}

/* quote */
.bl-quote{position:relative;margin:40px 0;padding:6px 0 6px 34px;border-left:2px solid var(--gold)}
.bl-quote::before{content:"\201C";position:absolute;left:12px;top:-26px;font:300 5rem/1 var(--f-display);color:var(--gold);opacity:.35}
.bl-art.prose .bl-quote p{margin:0;font:300 clamp(1.3rem,1rem + .9vw,1.75rem)/1.35 var(--f-display);letter-spacing:-.025em;color:var(--ink)}

/* figure */
.bl-fig{margin:34px 0}
.bl-fig img{width:100%;border-radius:22px;box-shadow:var(--sh-1);aspect-ratio:3/2;object-fit:cover;background:var(--mist)}
.bl-credit{display:inline-block;margin-left:6px;font:500 .72rem var(--f-mono);color:var(--ink-3)}
.bl-credit a{color:inherit}

/* inline cta */
.bl-cta{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px 24px;margin:36px 0;padding:24px 26px;border-radius:24px;color:#fff;background:radial-gradient(80% 140% at 100% 0%,rgba(99,201,255,.45),transparent 60%),linear-gradient(120deg,#1D44C4,#2A5BF0 60%,#3FA8F2)}
.bl-cta b{font:400 1.25rem/1.25 var(--f-display);letter-spacing:-.025em}
.bl-art.prose .bl-cta p{margin-top:8px;color:rgba(255,255,255,.82);font-size:.96rem;line-height:1.55}
.bl-cta .btn-ink{background:#fff;color:var(--ink);box-shadow:none}
.bl-cta .btn svg{width:18px;height:18px}

/* faq inside article */
.bl-art .bl-faq{margin-top:18px}
.bl-art .bl-faq summary{font-size:1rem}
.bl-art.prose .bl-faq p{margin:0 0 20px}

/* article footer */
.bl-art-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:48px;padding-top:24px;border-top:1px solid var(--line)}
.bl-tags{display:flex;flex-wrap:wrap;gap:8px}
.bl-tag{font-size:.8rem;padding:6px 12px;border-radius:999px;background:var(--paper);color:var(--ink-2);box-shadow:inset 0 0 0 1px var(--line)}
.bl-share{display:flex;align-items:center;gap:8px;font-size:.84rem;color:var(--ink-3)}
.bl-sh{display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:50%;background:var(--paper);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);cursor:pointer;transition:background .2s,color .2s}
.bl-sh svg{width:18px;height:18px}
.bl-sh:hover{background:var(--ink);color:#fff}
.bl-copied{font:500 .76rem var(--f-mono);color:var(--cobalt)}
.bl-authorbox{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:18px;margin-top:28px;padding:22px 24px;border-radius:24px;background:var(--paper);box-shadow:inset 0 0 0 1px var(--line)}
.bl-authorbox b{display:block;font:600 1.02rem var(--f-text)}
.bl-authorbox div span{display:block;margin-top:4px;font-size:.9rem;line-height:1.5;color:var(--ink-2)}

/* aside */
.bl-aside{position:sticky;top:104px;display:grid;gap:14px}
.bl-toc{padding:20px 20px 14px;border-radius:22px;background:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.bl-toc b{font:500 .72rem/1 var(--f-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.bl-toc ol{list-style:none;margin:12px 0 0;padding:0;display:grid;counter-reset:t}
.bl-toc li{counter-increment:t}
.bl-toc a{position:relative;display:block;padding:9px 0 9px 30px;border-top:1px solid var(--line);font-size:.88rem;line-height:1.4;color:var(--ink-2);text-decoration:none;transition:color .2s}
.bl-toc a::before{content:counter(t,decimal-leading-zero);position:absolute;left:0;top:10px;font:500 .7rem/1.4 var(--f-mono);color:var(--ink-3)}
.bl-toc a:hover,.bl-toc a.on{color:var(--cobalt)}
.bl-toc a.on::before{color:var(--cobalt)}
.bl-aside-cta{padding:20px;border-radius:22px;background:var(--ink);color:#fff;background-image:radial-gradient(70% 100% at 100% 0%,rgba(63,168,242,.35),transparent 60%)}
.bl-aside-cta b{font:400 1.1rem/1.2 var(--f-display);letter-spacing:-.02em}
.bl-aside-cta p{margin:8px 0 14px;font-size:.88rem;line-height:1.5;color:rgba(255,255,255,.75)}
.bl-aside-cta .btn{background:#fff;color:var(--ink)}
.bl-aside-cta .btn svg{width:16px;height:16px}

/* related and prev/next */
.bl-rel-sec{padding-block:clamp(56px,6vw,96px)}
.bl-rel .bl-card:nth-child(n+4){display:none}
.bl-np{padding-top:clamp(28px,4vw,48px);background:var(--paper)}
.bl-np b{font-weight:500;line-height:1.35}

/* reading progress under the header */
.bl-read{position:fixed;left:0;top:0;height:3px;width:100%;z-index:120;transform-origin:0 50%;transform:scaleX(0);background:var(--grad-iri);pointer-events:none}

/* home teaser */
.bl-home .sec-head{max-width:860px}
.bl-grid-home .bl-card-x{-webkit-line-clamp:2}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .bl-rubs{grid-template-columns:repeat(3,minmax(0,1fr))}
  .bl-rubs-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bl-post-grid{grid-template-columns:minmax(0,1fr) 250px}
}
@media (max-width:980px){
  .bl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bl-hero{grid-template-columns:1fr;align-items:start}
  .bl-feat-a{grid-template-columns:1fr}
  .bl-feat-pic{min-height:0;aspect-ratio:16/9}
  .bl-post-grid{grid-template-columns:minmax(0,1fr)}
  .bl-aside{position:static;order:-1}
  .bl-toc ol{max-height:none}
  .bl-aside-cta{display:none}
  .bl-art{max-width:none}
}
@media (max-width:700px){
  .bl-grid{grid-template-columns:1fr}
  .bl-rubs,.bl-rubs-4{grid-template-columns:1fr}
  .bl-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .bl-cmp{grid-template-columns:1fr}
  .bl-cta{grid-template-columns:1fr}
  .bl-cta .btn{justify-self:start}
  .bl-call{grid-template-columns:1fr;gap:12px;padding:20px}
  .bl-authorbox{grid-template-columns:auto minmax(0,1fr)}
  .bl-authorbox .btn{grid-column:1/-1;justify-self:start}
  .bl-cover{aspect-ratio:16/10;border-radius:20px}
  .bl-meta-a{margin-left:0}
  .bl-steps li{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .bl-step-n{width:44px;height:44px;border-radius:14px}
  .bl-steps li:not(:last-child)::before{left:21px;top:44px}
  .bl-chk-top{grid-template-columns:minmax(0,1fr) auto}
  .bl-chk-reset{grid-row:auto;grid-column:auto}
  .bl-hero-facts b{font-size:1.9rem}
  .bl-toc{padding:16px}
}
@media (prefers-reduced-motion:reduce){.js .bl-chart.rv .br rect{transform:none}.js .bl-chart.rv .ln{stroke-dashoffset:0}}
/* polish */
.bl-post-h .lede{margin-top:22px}
.bl-art.prose .bl-cta b{color:#fff;font-weight:400}
.bl-art.prose .bl-steps li:last-child::before{display:none}
.bl-stat b{white-space:nowrap}
.bl-stats[style*="--n:4"] .bl-stat b{font-size:clamp(1.5rem,1.05rem + .85vw,2.05rem)}
.bl-sku-hit{top:auto;bottom:10px}
.bl-np b{font:400 1.12rem/1.35 var(--f-display);letter-spacing:-.02em}
.bl-chart-c.scr:not(.end),.bl-tbl .tbl-wrap.scr:not(.end){-webkit-mask-image:linear-gradient(90deg,#000 78%,transparent);mask-image:linear-gradient(90deg,#000 78%,transparent)}
/* hub: quick answers instead of counters */
.bl-quick{display:grid;gap:6px;padding:18px;border-radius:24px;background:rgba(255,255,255,.78);box-shadow:inset 0 0 0 1px var(--line),var(--sh-1);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.bl-quick-h{display:block;padding:2px 6px 8px;font:600 .72rem/1.2 var(--f-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--cobalt)}
.bl-quick-a{display:grid;grid-template-columns:34px minmax(0,1fr) 20px;gap:12px;align-items:center;padding:12px 10px;border-radius:16px;text-decoration:none;color:inherit;transition:background .25s,transform .25s}
.bl-quick-a+.bl-quick-a{box-shadow:0 -1px 0 var(--line)}
.bl-quick-a:hover{background:var(--cobalt-50);transform:translateX(2px)}
.bl-quick-a:hover+.bl-quick-a{box-shadow:none}
.bl-quick-n{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#fff;box-shadow:inset 0 0 0 1px var(--line);font:500 .78rem/1 var(--f-mono);color:var(--cobalt)}
.bl-quick-t b{display:block;font:600 .98rem/1.3 var(--f-text);color:var(--ink)}
.bl-quick-t span{display:block;margin-top:3px;font-size:.84rem;line-height:1.45;color:var(--ink-3)}
.bl-quick-a svg{width:18px;height:18px;color:var(--cobalt);transition:transform .25s}
.bl-quick-a:hover svg{transform:translateX(3px)}
.bl-empty a{color:var(--cobalt)}