.bk-page{padding:128px clamp(20px,6vw,96px) 0;max-width:1100px;margin:0 auto}.bk-hero{padding-bottom:128px;border-bottom:1px solid var(--line)}.bk-meta-bar{display:flex;align-items:center;gap:12px;font-family:var(--font-mono),monospace;font-size:11px;letter-spacing:2.5px;margin-bottom:48px}.bk-meta-bar,.bk-meta-num{color:var(--dust)}.bk-meta-dot{width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 8px var(--signal)}.bk-meta-status{color:var(--signal)}.bk-title{font-family:var(--font-block),sans-serif;font-weight:900;font-size:clamp(72px,14vw,180px);letter-spacing:-3px;line-height:.88;color:var(--white);margin:0 0 36px}.bk-hook{font-family:var(--font-sans),system-ui,sans-serif;font-size:clamp(18px,1.8vw,22px);line-height:1.5;color:var(--off);max-width:620px;margin:0 0 80px}.bk-video-frame{position:relative;border:1px solid var(--line-bright);background:var(--carbon);overflow:hidden;margin-bottom:80px;clip-path:polygon(0 0,calc(100% - 16px) 0,100% 16px,100% 100%,16px 100%,0 calc(100% - 16px))}.bk-frame-tag{position:absolute;top:12px;left:14px;z-index:3;font-family:var(--font-mono),monospace;font-size:10px;letter-spacing:2px;color:var(--signal);background:rgba(7,8,10,.6);padding:4px 8px}.bk-video{display:block;width:100%;height:auto;background:var(--void)}.bk-scan{position:absolute;inset:0;pointer-events:none;z-index:2;background:repeating-linear-gradient(180deg,transparent 0,transparent 3px,hsla(0,0%,100%,.025) 0,hsla(0,0%,100%,.025) 4px)}.bk-spec{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--line);border:1px solid var(--line)}.bk-spec li{background:var(--carbon);padding:28px 26px;display:flex;flex-direction:column;gap:12px}.bk-spec .k{font-family:var(--font-mono),monospace;font-size:10px;letter-spacing:2px;color:var(--ash)}.bk-spec .v{font-family:var(--font-terminal),sans-serif;font-weight:600;font-size:15px;letter-spacing:1.5px;color:var(--white)}.bk-mechanics{padding:128px 0 160px}.bk-section-label{font-family:var(--font-mono),monospace;font-size:11px;letter-spacing:2.5px;color:var(--signal);margin-bottom:28px}.bk-section-title{font-family:var(--font-display),sans-serif;font-weight:700;font-size:clamp(32px,4.5vw,52px);letter-spacing:-1px;color:var(--white);margin:0 0 56px}.bk-mech-body{font-family:var(--font-sans),system-ui,sans-serif;font-size:18px;line-height:1.6;color:var(--white);max-width:680px;margin:0 0 28px}.bk-mech-body+.bk-mech-body{color:var(--dust)}.bk-cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:80px;margin-bottom:56px}.bk-cta{display:inline-flex;align-items:center;gap:14px;padding:16px 24px;border:1px solid var(--line-bright);background:var(--carbon);color:var(--dust);text-decoration:none;min-width:220px;cursor:not-allowed;position:relative}.bk-cta.disabled:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,transparent,transparent 8px,rgba(184,71,46,.06) 0,rgba(184,71,46,.06) 12px);pointer-events:none}.bk-cta-icon{font-family:var(--font-mono),monospace;font-size:22px;color:var(--rust);line-height:1}.bk-cta-text{display:flex;flex-direction:column;gap:2px}.bk-cta-label{font-family:var(--font-terminal),sans-serif;font-weight:600;font-size:14px;letter-spacing:1.5px;color:var(--off)}.bk-cta-sub{font-size:10px;color:var(--rust)}.bk-back,.bk-cta-sub{font-family:var(--font-mono),monospace;letter-spacing:2px}.bk-back{display:inline-block;margin-top:16px;font-size:11px;color:var(--ash);text-decoration:none;border-bottom:1px solid transparent;transition:color .15s,border-color .15s}.bk-back:hover{color:var(--signal);border-bottom-color:var(--signal)}@media (max-width:720px){.bk-page{padding-top:64px;padding-left:16px;padding-right:16px}.bk-cta{flex:1 1 100%}}