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16px;border-radius:999px;color:var(--glass-ink);background:var(--glass);border:1px solid var(--glass-rim);backdrop-filter:blur(30px) saturate(190%);-webkit-backdrop-filter:blur(30px) saturate(190%);box-shadow:0 10px 30px rgb(0 0 0/18%)}.bk-cursor{position:absolute;z-index:20;left:-3px;top:-2px;pointer-events:none;transition:transform .7s cubic-bezier(.45,.05,.25,1);filter:drop-shadow(0 2px 3px rgb(0 0 0/35%))}.bk-cursor svg{transition:transform .12s ease}.bk-cursor.is-down svg{transform:scale(.82)}.bk-hud{position:absolute;z-index:15;left:50%;top:44%;transform:translate(-50%,-50%);display:flex;gap:8px;padding:14px 18px;border-radius:22px;pointer-events:none;background:rgb(28 28 34/70%);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);animation:bk-hud .65s ease both}.bk-hud kbd{font:600 22px -apple-system,system-ui;padding:8px 14px;border-radius:10px;color:#fff;background:rgb(255 255 255/14%);border:1px solid rgb(255 255 255/22%);animation:bk-key .65s ease both}.bk-hud 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var(--glass-line)}.bk-result-bar>span{width:11px;height:11px;border-radius:50%;background:#ff5f57}.bk-result-bar>span:nth-child(2){background:#febc2e}.bk-result-bar>span:nth-child(3){background:#28c840}.bk-result-bar strong{margin-left:8px}.bk-chat{display:grid;gap:10px;padding:14px}.bk-bubble{justify-self:end;max-width:85%;display:grid;gap:4px;padding:9px 13px;border-radius:16px 16px 4px 16px;background:var(--accent);color:#fff;font-size:13.5px}.bk-bubble small{opacity:.8;font-size:11.5px}.bk-typing{display:inline-flex;gap:4px;padding:10px 12px;border-radius:14px;background:rgb(127 127 127/15%);justify-self:start}.bk-typing span{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.5;animation:bk-dot 1.1s infinite}.bk-typing span:nth-child(2){animation-delay:.15s}.bk-typing span:nth-child(3){animation-delay:.3s}@keyframes bk-dot{40%{transform:translateY(-3px);opacity:1}}.bk-sent-note{font:inherit;font-size:12.5px;color:#fff;text-shadow:0 1px 4px rgb(0 0 0/30%);background:none;border:0;cursor:pointer;text-decoration:underline}.bk-usage{position:absolute;z-index:14;top:6px;right:120px;width:300px;max-width:calc(100% - 24px);max-height:calc(100% - 12px);overflow:auto;display:grid;gap:8px;padding:12px;border-radius:16px;font-size:12.5px;animation:bk-pop .18s ease-out both}.bk-usage-title{font-size:13px}.bk-card{display:grid;gap:6px;padding:10px;border-radius:12px;background:rgb(255 255 255/30%);border:1px solid var(--glass-line)}[data-theme=dark] .bk-card{background:rgb(255 255 255/6%)}.bk-card-head{display:flex;gap:6px;align-items:center}.bk-card-head .mac-icon{border-radius:4px}.bk-card-head em{font-style:normal;font-size:10.5px;padding:0 6px;border-radius:999px;border:1px solid var(--glass-line)}.bk-line{display:grid;gap:3px}.bk-line>div{display:flex;justify-content:space-between;gap:8px}.bk-line b{font-weight:500;font-variant-numeric:tabular-nums}.bk-line b.is-warn{color:#e07b00}.bk-line i{height:5px;border-radius:4px;background:rgb(127 127 127/22%);position:relative;overflow:hidden}.bk-line i:after{content:"";position:absolute;inset:0 auto 0 0;width:var(--w);background:var(--accent);border-radius:4px;transition:width .9s cubic-bezier(.2,.8,.2,1)}.bk-card small,.bk-usage small{font-size:11px;opacity:.65}.bk-caption{text-align:center;font-size:13px;color:var(--muted-foreground);margin:0}@media (max-width:760px){.bk-screen{aspect-ratio:auto;min-height:660px}.bk-window{left:3%;right:3%;top:3%;bottom:46%}.bk-site-body{grid-template-columns:1fr}.bk-site nav{display:none}.bk-ide{grid-template-columns:1fr}.bk-ide-activity,.bk-ide-files{display:none}.bk-preview{grid-template-columns:1fr}.bk-foot span,.bk-preview-thumbs{display:none}.bk-usage{right:12px}.mac-dock .mac-dock-app:nth-child(n+8){display:none}}@media (prefers-reduced-motion:reduce){.bk-demo *,.bk-demo :after,.bk-demo :before{animation:none!important;transition:none!important}}