.bk{--bk-paper:#f6f3ec;--bk-ink:#2d2823}.bk-hero{padding:clamp(56px,9vh,110px) clamp(22px,4vw,64px) clamp(36px,6vh,64px)}.bk-hero h1{font-family:var(--serif);letter-spacing:-.022em;color:var(--paper);margin:0 0 14px;font-size:clamp(36px,5vw,58px);font-weight:600;line-height:1.04}.bk-hero p{max-width:52ch;font-size:var(--text-body);color:var(--paper-dim);margin:0;line-height:1.55}.bk-hero .bk-hint{max-width:62ch;margin-top:14px;font-size:14.5px;line-height:1.6}.bk-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.bk-meta{font-family:var(--mono);letter-spacing:.06em;opacity:.75;font-size:11px;font-weight:400}.bk-sect{padding:0 clamp(22px,4vw,64px) clamp(36px,6vh,56px)}.bk-sect:last-of-type{padding-bottom:clamp(56px,9vh,96px)}.bk-sect>.inner{border-top:1px solid var(--border-soft);padding-top:clamp(28px,4.5vh,40px)}.bk-format-head{flex-wrap:wrap;align-items:baseline;gap:4px 16px;margin-bottom:18px;display:flex}.bk-format-head h2{font-family:var(--serif);letter-spacing:-.01em;color:var(--paper);margin:0;font-size:clamp(23px,2.4vw,28px);font-weight:600;line-height:1.15}.bk-format-head p{color:var(--paper-dim);margin:0;font-size:14.5px;line-height:1.5}.bk-logos{grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;margin:0;padding:0;list-style:none;display:grid}.bk-tile{border:1px solid var(--border-strong);border-radius:var(--radius-md);background:var(--bg-raised);flex-direction:column;display:flex;overflow:hidden}.bk-preview{border-bottom:1px solid var(--border-soft);justify-content:center;align-items:center;min-height:120px;padding:20px 16px;display:flex}.bk-preview img{max-width:100%;height:auto;display:block}.bk-preview.bg-paper{background:var(--bk-paper)}.bk-preview.bg-ink{background:var(--bk-ink)}.bk-preview.bg-white{background:#fff}.bk-preview.bg-black{background:#000}.bk-tile-body{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:12px 14px;display:flex}.bk-tile-body h3{font-family:var(--sans);color:var(--paper);margin:0;font-size:14px;font-weight:600}.bk-downloads{gap:6px;display:flex}.bk-downloads a{font-family:var(--mono);letter-spacing:.04em;color:var(--paper);border:1px solid var(--border-strong);border-radius:var(--radius-pill);padding:4px 10px;font-size:11.5px;text-decoration:none;transition:border-color .2s,color .2s}.bk-downloads a:hover{color:var(--accent);border-color:var(--accent)}@media (max-width:900px){.bk-logos{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (max-width:560px){.bk-logos{grid-template-columns:repeat(2,minmax(0,1fr))}}