.bk-home .sr-only,.bk-main .sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.bk-live{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:2s infinite bk-pulse;display:inline-block;box-shadow:0 0 #01f03b99}.bk-button{background:var(--accent);min-height:54px;color:var(--accent-ink);font:inherit;cursor:pointer;border:0;border-radius:999px;align-items:center;gap:12px;padding:10px 26px;font-size:16px;font-weight:750;line-height:1.4;transition:transform .2s,box-shadow .2s;display:inline-flex}.bk-button:hover{transform:translateY(-2px);box-shadow:0 10px 30px #01f03b40}.bk-button-ink{background:var(--color-deep-ink);color:#fff}.bk-button-ink:hover{box-shadow:0 10px 30px #04191c4d}.bk-text-link{color:var(--fg);text-decoration:underline;text-decoration-color:var(--accent);text-underline-offset:7px;font-size:16px;font-weight:700}.bk-section{padding-block:clamp(72px,9vw,130px)}.bk-head{justify-content:space-between;align-items:end;gap:40px;margin-block-end:40px;display:flex}.bk-head h2{margin:18px 0 0;font-size:clamp(36px,4vw,60px);font-weight:800;line-height:1.25}.bk-head>p{max-width:440px;color:var(--fg-2);margin:0;font-size:17px;line-height:1.8}.bk-empty{color:var(--fg-3);margin:24px 0 0}.bk-pill{border:1px solid var(--line);min-height:40px;color:var(--fg);border-radius:999px;align-items:center;gap:8px;padding:6px 16px;font-size:14px;font-weight:650;transition:border-color .2s;display:inline-flex}.bk-pill:hover{border-color:var(--accent-txt)}.bk-pill-solid{background:var(--color-deep-ink);color:#fff;border-color:#0000}.bk-cover{--hue:152;aspect-ratio:2/3;background:#0b1416;border-radius:8px 3px 3px 8px;position:relative;overflow:hidden;box-shadow:inset 0 1px #ffffff14,0 22px 44px -16px #0000008c,0 4px 10px #0000002e;container-type:inline-size}.bk-cover:after{content:"";inset-block:0;pointer-events:none;background:linear-gradient(270deg,#00000059,#ffffff14 55%,#0000);width:7%;position:absolute;right:0}.bk-cover img{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.bk-cover-art{background:radial-gradient(circle at 85% 12%, hsl(var(--hue) 85% 55% / .5), transparent 55%), linear-gradient(160deg, hsl(var(--hue) 48% 30%), hsl(var(--hue) 45% 13%) 72%, #04191c);color:#fff;flex-direction:column;padding:10cqi 12cqi 9cqi 9cqi;display:flex;position:absolute;inset:0}.bk-cover-mark{color:#ffffffb3;letter-spacing:.18em;text-align:left;direction:ltr;font:800 3.6cqi/1.35 Arial,sans-serif}.bk-cover-title{text-wrap:balance;margin-block-start:auto;font-size:11.5cqi;font-weight:850;line-height:1.3}.bk-cover-rule{background:var(--color-accent);border-radius:1cqi;width:18cqi;height:1.2cqi;margin-block:6cqi 4cqi}.bk-cover-author{color:#ffffffd1;font-size:5.6cqi;font-weight:600;line-height:1.4}@container (width<=90px){.bk-cover-mark,.bk-cover-author,.bk-cover-rule{display:none}.bk-cover-art{padding:10cqi}.bk-cover-title{font-size:15cqi}}.bk-hero{padding-block:clamp(56px,8vw,112px) clamp(64px,8vw,110px);position:relative;overflow:hidden}.bk-hero:before{content:"";pointer-events:none;background:radial-gradient(closest-side,#01f03b1f,#0000);width:70vw;max-width:980px;height:70vw;max-height:980px;position:absolute;inset:-30% auto auto -10%}.bk-hero-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;gap:clamp(40px,6vw,100px);display:grid;position:relative}.bk-eyebrow{color:var(--accent-txt);align-items:center;gap:10px;margin:0 0 28px;font-size:15px;font-weight:700;display:inline-flex}.bk-hero h1{margin:0;font-size:clamp(48px,5.6vw,96px);font-weight:800;line-height:1.15}.bk-hero h1 span{color:var(--accent-txt)}.bk-lead{max-width:600px;color:var(--fg-2);margin:30px 0 0;font-size:clamp(20px,1.6vw,24px);line-height:1.8}.bk-hero-actions{flex-wrap:wrap;align-items:center;gap:16px 26px;margin-block-start:36px;display:flex}.bk-hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:600px;margin-block-start:44px;display:grid}.bk-hero-stats div{border-inline-start:2px solid var(--accent);padding:14px 16px}.bk-hero-stats strong{white-space:nowrap;font-size:26px;font-weight:800;line-height:1.35;display:block}.bk-hero-stats span{color:var(--fg-3);font-size:14px}.bk-stack{aspect-ratio:1/1.05;justify-self:center;width:100%;max-width:520px;display:block;position:relative}.bk-stack-item{width:48%;transition:transform .5s var(--ease-emphasis);position:absolute;inset-block-start:6%;inset-inline-start:26%}.bk-stack-item:first-child{z-index:3;transform:rotate(-3deg)}.bk-stack-item:nth-child(2){z-index:2;filter:brightness(.7);transform:translate(42%,9%)rotate(9deg)scale(.88)}.bk-stack-item:nth-child(3){z-index:1;filter:brightness(.55);transform:translate(-44%,12%)rotate(-14deg)scale(.82)}.bk-stack:hover .bk-stack-item:first-child{transform:rotate(0)translateY(-10px)}.bk-stack:hover .bk-stack-item:nth-child(2){transform:translate(52%,7%)rotate(12deg)scale(.88)}.bk-stack:hover .bk-stack-item:nth-child(3){transform:translate(-54%,10%)rotate(-17deg)scale(.82)}.bk-feature{--hue:152;grid-template-columns:minmax(260px,.82fr) minmax(0,1.18fr);align-items:start;gap:clamp(36px,6vw,96px);display:grid}.bk-feature-side{position:sticky;inset-block-start:100px}.bk-feature-stage{background:radial-gradient(circle at 50% 35%, hsl(var(--hue) 70% 55% / .28), transparent 65%), linear-gradient(170deg, hsl(var(--hue) 35% 22%), var(--color-deep-ink));border-radius:18px;place-items:center;padding:clamp(36px,5vw,70px) 12%;display:grid}.bk-feature-stage .bk-cover{width:100%;max-width:330px;transition:transform .6s var(--ease-emphasis);transform:perspective(1200px)rotateY(-10deg)}.bk-feature-stage:hover .bk-cover{transform:perspective(1200px)rotateY(0)}.bk-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px;margin:18px 0 0;display:grid}.bk-facts div{border-block-end:1px solid var(--line);padding-block:12px}.bk-facts dt{color:var(--fg-3);font-size:13px}.bk-facts dd{margin:0;font-size:16px;font-weight:700;line-height:1.6}.bk-badge{background:var(--color-deep-ink);color:var(--color-dark-text);border-radius:999px;flex-wrap:wrap;align-items:center;gap:4px 10px;margin:0;padding:6px 16px;font-size:14px;font-weight:700;display:inline-flex}.bk-badge .bk-live{margin-inline-end:2px}.bk-badge-sep{color:#dde8e666}.bk-feature-title{text-wrap:balance;margin:22px 0 0;font-size:clamp(40px,4.6vw,76px);font-weight:850;line-height:1.2}.bk-byline{flex-wrap:wrap;align-items:baseline;gap:4px 16px;margin:14px 0 0;font-size:20px;font-weight:700;display:flex}.bk-byline span{color:var(--fg-3);font-family:Arial,sans-serif;font-size:15px;font-weight:400}.bk-oneliner{border-inline-start:4px solid var(--accent);background:var(--surface);border-radius:0 14px 14px 0;margin:36px 0 0;padding:24px 28px;font-size:clamp(22px,2vw,30px);font-weight:750;line-height:1.6;position:relative}.bk-oneliner span{color:var(--accent-txt);margin-block-end:6px;font-size:14px;font-weight:700;display:block}.bk-block{margin-block-start:44px}.bk-block h3,.bk-forwhom h3{color:var(--accent-txt);margin:0;font-size:15px;font-weight:750}.bk-block p{max-width:720px;color:var(--fg-2);margin:12px 0 0;font-size:18px;line-height:2}.bk-takeaways{counter-reset:take;gap:12px;margin:18px 0 0;padding:0;list-style:none;display:grid}.bk-takeaways li{border:1px solid var(--line);background:var(--surface);counter-increment:take;border-radius:14px;grid-template-columns:44px 1fr;align-items:start;gap:16px;padding:18px 20px;font-size:17px;font-weight:500;line-height:1.85;display:grid}.bk-takeaways li:before{content:counter(take, persian);background:var(--color-deep-ink);width:44px;height:44px;color:var(--color-accent);border-radius:50%;place-items:center;font-size:18px;font-weight:800;display:grid}.bk-soon{border:1px dashed var(--line);background:var(--surface);border-radius:16px;margin-block-start:36px;padding:clamp(24px,3vw,36px);position:relative;overflow:hidden}.bk-soon-title{align-items:center;gap:10px;margin:0;font-size:clamp(22px,2vw,28px);font-weight:800;line-height:1.5;display:flex}.bk-soon-dot{background:#ffb020;border-radius:50%;width:10px;height:10px;box-shadow:0 0 0 5px #ffb0202e}.bk-soon>p:not(.bk-soon-title){max-width:620px;color:var(--fg-2);margin:10px 0 0;font-size:17px;line-height:1.9}.bk-soon-parts{flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none;display:flex}.bk-soon-parts li{border:1px solid var(--line);color:var(--fg-3);border-radius:999px;padding:4px 14px;font-size:14px;font-weight:650}.bk-soon-lines{gap:12px;margin-block-start:26px;display:grid}.bk-soon-lines i{background:linear-gradient(90deg, var(--line-2) 0%, var(--line) 50%, var(--line-2) 100%);background-size:200% 100%;border-radius:6px;height:12px;animation:2.4s ease-in-out infinite bk-shimmer;display:block}.bk-soon-lines i:nth-child(2){width:86%}.bk-soon-lines i:nth-child(3){width:58%}.bk-forwhom{border:1px dashed var(--line);border-radius:14px;align-items:baseline;gap:18px;margin-block-start:36px;padding:20px 24px;display:flex}.bk-forwhom h3{flex:none}.bk-forwhom p{margin:0;font-size:17px;font-weight:600;line-height:1.8}.bk-links{flex-wrap:wrap;gap:10px;margin-block-start:30px;display:flex}.bk-archive{padding-block-start:0}.bk-current+.bk-archive{padding-block-start:clamp(20px,3vw,40px)}.bk-filters{flex-wrap:wrap;gap:8px;margin-block-end:30px;display:flex}.bk-filters button{--hue:152;border:1px solid var(--line);min-height:42px;color:var(--fg);font:inherit;cursor:pointer;background:0 0;border-radius:999px;align-items:center;gap:8px;padding:6px 16px;font-size:15px;font-weight:650;transition:border-color .2s,background .2s;display:inline-flex}.bk-filters button span{color:var(--fg-3);font-size:13px}.bk-filters button:hover{border-color:var(--accent-txt)}.bk-filters button[aria-pressed=true]{border-color:var(--color-deep-ink);background:var(--color-deep-ink);color:#fff}.bk-filters button[aria-pressed=true] span{color:var(--color-accent)}.bk-grid{grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:clamp(16px,2vw,28px);margin:0;padding:0;list-style:none;display:grid}.bk-card[hidden]{display:none}.bk-card-inner{border:1px solid var(--line);background:var(--surface);height:100%;transition:transform .3s var(--ease-emphasis), border-color .2s ease, box-shadow .3s ease;border-radius:16px;flex-direction:column;display:flex;overflow:hidden}a.bk-card-inner:hover{border-color:var(--accent-txt);transform:translateY(-6px);box-shadow:0 24px 50px -24px #04191c59}.bk-card-cover{--hue:152;background:linear-gradient(180deg, hsl(var(--hue) 40% 50% / .1), transparent 80%);padding:28px 19% 0;position:relative}.bk-card .bk-cover{transition:transform .4s var(--ease-emphasis)}a.bk-card-inner:hover .bk-cover{transform:translateY(-4px)rotate(-2deg)}.bk-card-date{z-index:2;background:var(--color-deep-ink);color:#fff;text-align:center;border-radius:12px;justify-items:center;min-width:58px;padding:6px 8px 7px;font-size:15px;font-weight:800;line-height:1.25;display:grid;position:absolute;inset-block-start:14px;inset-inline-start:14px;box-shadow:0 8px 20px -8px #04191c80}.bk-card-date small{color:var(--color-accent);font-size:11px;font-weight:700}.bk-card-upcoming .bk-cover{filter:saturate(.55)brightness(.92)}.bk-card-upcoming .bk-card-inner{background:0 0;border-style:dashed}.bk-card-upcoming .bk-card-meta span:last-child{color:var(--accent-txt);font-weight:750}.bk-card-body{flex-direction:column;flex:1;padding:22px 22px 24px;display:flex}.bk-card-meta{color:var(--fg-3);justify-content:space-between;gap:10px;margin:0;font-size:13px;font-weight:600;display:flex}.bk-card-meta span:first-child{color:var(--accent-txt);font-weight:750}.bk-card h3{margin:10px 0 0;font-size:22px;font-weight:800;line-height:1.45}.bk-card-author{color:var(--fg-2);margin:4px 0 0;font-size:15px;font-weight:600}.bk-card-line{color:var(--fg-2);margin:12px 0 0;font-size:15px;line-height:1.8}.bk-card-topic{color:var(--fg-3);margin:auto 0 0;padding-block-start:14px;font-size:13px;font-weight:650}.bk-upcoming{padding-block-start:0}.bk-grid-upcoming{counter-reset:none}.bk-steps{counter-reset:step;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:0;padding:0;list-style:none;display:grid}.bk-steps li{border:1px solid var(--line);background:var(--surface);counter-increment:step;border-radius:16px;padding:clamp(24px,2.6vw,36px)}.bk-steps li:before{content:"۰" counter(step, persian);color:var(--accent-txt);font-size:15px;font-weight:700}.bk-steps h3{margin:14px 0 0;font-size:clamp(22px,1.8vw,28px);font-weight:800;line-height:1.4}.bk-steps p{color:var(--fg-2);margin:12px 0 0;font-size:16px;line-height:1.85}.bk-cta{background:var(--accent);color:var(--accent-ink);border-radius:18px;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:28px;padding:clamp(32px,5vw,70px);display:flex}.bk-cta h2{margin:0;font-size:clamp(32px,3.6vw,56px);font-weight:800;line-height:1.3}.bk-cta p{max-width:620px;margin:16px 0 0;font-size:18px;font-weight:500;line-height:1.8}.bk-single{padding-block-start:clamp(40px,5vw,70px)}.bk-crumbs{color:var(--fg-3);gap:10px;margin-block-end:28px;font-size:15px;font-weight:600;display:flex}.bk-crumbs a{color:var(--accent-txt)}.bk-pager{grid-template-columns:1fr 1fr;gap:16px;margin-block-start:clamp(56px,7vw,96px);display:grid}.bk-pager a{border:1px solid var(--line);border-radius:14px;flex-direction:column;gap:4px;padding:20px 24px;transition:border-color .2s;display:flex}.bk-pager a[rel=next]{text-align:end}.bk-pager a:hover{border-color:var(--accent-txt)}.bk-pager small{color:var(--fg-3);font-size:13px;font-weight:650}.bk-pager strong{font-size:20px;font-weight:800;line-height:1.5}.bk-home{padding-block:clamp(72px,9vw,130px);position:relative;overflow:hidden}.bk-home:before{content:"";pointer-events:none;background:radial-gradient(closest-side,#01f03b1a,#0000);width:60vw;max-width:860px;height:60vw;max-height:860px;position:absolute;inset:auto auto -40% -15%}.bk-home-grid{grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);align-items:center;gap:clamp(40px,6vw,100px);display:grid;position:relative}.bk-home-title{text-wrap:balance;margin:20px 0 0;font-size:clamp(42px,4.8vw,80px);font-weight:850;line-height:1.2}.bk-home-eyebrow{align-items:center;gap:10px;display:inline-flex}.bk-home-kicker{color:var(--fg-2);align-items:center;gap:10px;margin-block-end:10px;font-size:clamp(16px,1.3vw,19px);font-weight:700;line-height:1.6;display:flex}.bk-home-author{color:var(--accent-txt);flex-wrap:wrap;align-items:baseline;gap:4px 14px;margin:10px 0 0;font-size:19px;font-weight:700;display:flex}.bk-home-author span{color:var(--fg-3);font-family:Arial,sans-serif;font-size:14px;font-weight:400}.bk-home-line-soon{color:var(--fg-2);font-size:clamp(18px,1.5vw,22px);font-weight:500}.bk-home-line{border-inline-start:3px solid var(--accent);max-width:620px;margin:26px 0 0;padding-inline-start:18px;font-size:clamp(21px,1.8vw,27px);font-weight:700;line-height:1.65}.bk-home-why{max-width:600px;color:var(--fg-2);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:18px 0 0;font-size:17px;line-height:1.9;display:-webkit-box;overflow:hidden}.bk-home-actions{flex-wrap:wrap;align-items:center;gap:16px 26px;margin-block-start:32px;display:flex}.bk-home-next{color:var(--fg-3);margin:22px 0 0;font-size:14px;font-weight:600}.bk-home-next time{color:var(--fg)}.bk-home-visual{grid-template-columns:minmax(0,1fr) 96px;align-items:end;gap:clamp(18px,3vw,40px);display:grid}.bk-home-cover{justify-self:center;width:100%;max-width:310px;display:block}.bk-home-cover .bk-cover{transition:transform .5s var(--ease-emphasis);transform:rotate(-3deg)}.bk-home-cover:hover .bk-cover{transform:rotate(0)translateY(-8px)}.bk-home-min .bk-home-grid{grid-template-columns:minmax(0,1.3fr) minmax(0,.7fr);max-width:1100px;margin-inline:auto}.bk-home-min .bk-home-title{font-size:clamp(36px,3.8vw,60px)}.bk-home-min .bk-home-line{font-size:clamp(18px,1.5vw,22px);font-weight:600}.bk-home-min .bk-home-visual{grid-template-columns:1fr}.bk-home-min .bk-home-cover{max-width:240px}.bk-home-min:before{opacity:.5}.bk-home-shelf p{color:var(--fg-3);margin:0 0 10px;font-size:13px;font-weight:700}.bk-home-shelf ul{gap:12px;margin:0;padding:0;list-style:none;display:grid}.bk-home-shelf a{opacity:.82;transition:opacity .2s ease, transform .3s var(--ease-emphasis);display:block}.bk-home-shelf a:hover{opacity:1;transform:translate(-4px)}.bk-home-shelf-next .bk-cover{filter:saturate(.6)brightness(.88)}.bk-home-shelf-date{color:var(--fg-2);text-align:center;white-space:nowrap;margin-block-start:5px;font-size:12px;font-weight:700;line-height:1.4;display:block}@keyframes bk-shimmer{0%{background-position:100% 0}to{background-position:-100% 0}}@keyframes bk-pulse{70%{box-shadow:0 0 0 10px #01f03b00}to{box-shadow:0 0 #01f03b00}}@media (prefers-reduced-motion:reduce){.bk-live,.bk-soon-lines i{animation:none}.bk-stack-item,.bk-card-inner,.bk-card .bk-cover,.bk-home-cover .bk-cover,.bk-feature-stage .bk-cover{transition:none}}@media (width<=1000px){.bk-feature{grid-template-columns:1fr}.bk-feature-side{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:end;gap:24px;display:grid;position:static}.bk-facts{margin:0}.bk-steps{grid-template-columns:1fr}}@media (width<=760px){.bk-hero-grid,.bk-home-grid{grid-template-columns:1fr}.bk-stack{max-width:340px}.bk-head{flex-direction:column;align-items:start;gap:14px}.bk-hero-stats{gap:6px}.bk-hero-stats div{padding:10px 12px}.bk-hero-stats strong{font-size:21px}.bk-feature-side{display:contents}.bk-feature-body{order:1}.bk-facts{order:2}.bk-feature-stage{padding-inline:22%}.bk-takeaways li{grid-template-columns:36px 1fr;gap:12px;padding:16px;font-size:16px}.bk-takeaways li:before{width:36px;height:36px;font-size:16px}.bk-forwhom{flex-direction:column;gap:6px}.bk-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.bk-card-cover{padding:18px 15% 0}.bk-card-date{min-width:48px;padding:4px 6px;font-size:13px;inset-block-start:8px;inset-inline-start:8px}.bk-card-topic{display:none}.bk-card-body{padding:14px 14px 18px}.bk-card-meta{flex-direction:column;gap:0}.bk-card h3{font-size:18px}.bk-card-line{display:none}.bk-pager{grid-template-columns:1fr}.bk-home-visual{order:-1;grid-template-columns:minmax(0,180px) 54px;justify-content:center;gap:18px}.bk-home-min .bk-home-visual{grid-template-columns:minmax(0,160px)}.bk-home-shelf p{font-size:12px}.bk-home-shelf ul{gap:8px}}