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var(--bt-line);grid-template-columns:1fr 1fr;display:grid}.bti-detail-grid article{border-right:1px solid var(--bt-line);border-bottom:1px solid var(--bt-line);min-height:440px;padding:clamp(1.8rem,4vw,3.2rem);position:relative}.bti-detail-grid article>small{color:#10251c47;font:700 .68rem JetBrains Mono,monospace;position:absolute;top:2rem;right:2rem}.bti-detail-icon{border:1px solid var(--bt-line);background:var(--bt-white);width:48px;height:48px;color:var(--bt-forest);place-items:center;font:700 1.2rem Space Grotesk,monospace;display:grid}.bti-detail-grid h3{margin:2.1rem 0 .8rem;font:700 clamp(1.55rem,2.5vw,2.15rem)/1.12 Noto Sans Bengali,sans-serif}.bti-detail-grid p{max-width:580px;color:var(--bt-muted);font:400 .95rem/1.75 Noto Sans Bengali,sans-serif}.bti-detail-grid ul{gap:.65rem;margin:1.6rem 0 0;padding:0;list-style:none;display:grid}.bti-detail-grid li{color:var(--bt-ink);font:600 .82rem Noto Sans Bengali,sans-serif}.bti-detail-grid li:before{content:"✓";color:var(--bt-forest);margin-right:.65rem}.bti-detail-grid pre{background:var(--bt-ink);color:var(--bt-signal);border-radius:2px;margin:1.7rem 0 0;padding:1.25rem;font:500 .72rem/1.8 JetBrains Mono,monospace;overflow:auto}.bti-mode-section{border-bottom:1px solid var(--bt-line);background:var(--bt-white);padding:clamp(5rem,8vw,7rem) 0}.bti-mode-layout{grid-template-columns:minmax(260px,4fr) minmax(0,8fr);gap:clamp(3rem,7vw,6rem);display:grid}.bti-mode-layout>div:first-child>p,.bti-segment-layout>div:first-child>p,.bti-faq-layout>div:first-child>p{color:var(--bt-muted);font:400 .96rem/1.7 Noto Sans Bengali,sans-serif}.bti-mode-cards{border:1px solid var(--bt-line);background:var(--bt-line);grid-template-columns:1fr 1fr;gap:1px;display:grid}.bti-mode-cards article{background:var(--bt-paper);padding:2rem}.bti-mode-cards article:last-child{background:var(--bt-ink);color:var(--bt-white)}.bti-mode-cards b{color:var(--bt-forest);letter-spacing:.11em;font:700 .62rem 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