@import url("https://fonts.googleapis.com/css2?family=Inter+Tight:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Instrument+Serif:ital@0;1&display=swap");:root{--bg:oklch(0.165 0.008 60);--bg-1:oklch(0.195 0.009 60);--bg-2:oklch(0.225 0.01 60);--bg-3:oklch(0.265 0.011 60);--bg-inset:oklch(0.14 0.008 60);--hairline:oklch(0.305 0.011 60);--hairline-soft:oklch(0.26 0.01 60);--ink:oklch(0.965 0.008 80);--ink-1:oklch(0.87 0.009 80);--ink-2:oklch(0.7 0.01 80);--ink-3:oklch(0.56 0.01 80);--ink-4:oklch(0.43 0.01 60);--accent:oklch(0.745 0.155 45);--accent-soft:oklch(0.745 0.155 45/0.14);--accent-line:oklch(0.745 0.155 45/0.45);--accent-ink:oklch(0.2 0.05 50);--review:oklch(0.78 0.13 155);--failed:oklch(0.7 0.18 25);--queued:oklch(0.74 0.1 240);--shadow-1:0 1px 0 oklch(1 0 0/0.04) inset,0 0 0 1px var(--hairline-soft);--shadow-pop:0 24px 60px oklch(0 0 0/0.55),0 0 0 1px var(--hairline);--ff-sans:"Inter Tight",-apple-system,BlinkMacSystemFont,"Helvetica Neue",sans-serif;--ff-mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,monospace;--ff-serif:"Instrument Serif","Times New Roman",Georgia,serif;color-scheme:dark}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--ff-sans);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}a{color:var(--ink-1);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:2px}a:hover{color:var(--ink)}button{font-family:inherit}.kb-page{min-height:100vh;display:flex;flex-direction:column}.kb-nav{display:flex;align-items:center;gap:16px;padding:14px 28px;border-bottom:1px solid var(--hairline-soft);background:color-mix(in oklch,var(--bg) 92%,transparent);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);position:sticky;top:0;z-index:10}.kb-nav-brand{gap:8px;text-decoration:none;color:var(--ink);font-weight:500}.kb-nav-brand,.kb-nav-mark{display:inline-flex;align-items:center}.kb-nav-mark{justify-content:center;width:22px;height:22px;border-radius:6px;background:var(--accent-soft);border:1px solid var(--accent-line);color:var(--accent)}.kb-nav-links{display:flex;gap:18px;margin-left:24px}.kb-nav-links a{text-decoration:none;color:var(--ink-2);font-size:13px}.kb-nav-links a:hover{color:var(--ink)}.kb-nav-spacer{flex:1 1}.kb-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 14px;border-radius:10px;border:1px solid var(--hairline);background:transparent;color:var(--ink-1);font-size:13px;font-weight:500;cursor:pointer;text-decoration:none;transition:background .12s ease,border-color .12s ease,color .12s ease,transform 60ms ease}.kb-btn:hover{background:var(--bg-1);border-color:var(--hairline);color:var(--ink)}.kb-btn.primary{color:var(--accent-ink);border-color:var(--accent-line);box-shadow:inset 0 1px 0 oklch(1 0 0/.1),0 8px 22px oklch(0 0 0/.35)}.kb-btn.primary,.kb-btn.primary:hover{background:linear-gradient(180deg,color-mix(in oklch,var(--accent) 88%,transparent),var(--accent))}.kb-btn.primary:hover{filter:brightness(1.06)}.kb-btn:active{transform:translateY(.5px)}.kb-btn[disabled]{filter:saturate(.7) brightness(.85);cursor:not-allowed;pointer-events:none}.kb-btn.lg{padding:11px 20px;font-size:14px;border-radius:12px}.kb-btn.ghost{border-color:transparent}.kb-btn.ghost:hover{border-color:var(--hairline-soft)}.kb-card{background:var(--bg-1);border:1px solid var(--hairline-soft);border-radius:14px;box-shadow:var(--shadow-1)}.kb-input{display:block;width:100%;padding:10px 12px;background:var(--bg-inset);border:1px solid var(--hairline);border-radius:10px;color:var(--ink);font:inherit;font-size:14px;outline:none;transition:border-color .12s ease,background .12s ease}.kb-input:focus{border-color:var(--accent-line);background:color-mix(in oklch,var(--bg-inset) 90%,var(--accent-soft))}.kb-input.mono{font-family:var(--ff-mono);letter-spacing:.12em;text-transform:uppercase;font-size:16px}.kb-label{display:block;font-size:12px;color:var(--ink-2);margin-bottom:4px}.kb-error{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid color-mix(in oklch,var(--failed) 35%,var(--hairline));background:color-mix(in oklch,var(--failed) 8%,var(--bg-1));border-radius:10px;font-size:12.5px;color:var(--ink-1);text-align:left;line-height:1.4}.kb-error-icon{flex-shrink:0;width:16px;height:16px;margin-top:1px;color:var(--failed)}.kb-success{display:flex;align-items:flex-start;gap:10px;padding:10px 12px;border:1px solid color-mix(in oklch,var(--review) 35%,var(--hairline));background:color-mix(in oklch,var(--review) 8%,var(--bg-1));border-radius:10px;font-size:13px;color:var(--ink-1);text-align:left;line-height:1.4}.kb-success-dot{width:8px;height:8px;border-radius:50%;background:var(--review);box-shadow:0 0 0 4px color-mix(in oklch,var(--review) 25%,transparent);margin-top:5px}.kb-hero{display:flex;flex-direction:column;align-items:center;text-align:center;padding:72px 24px 48px;gap:18px}.kb-hero-eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:500}.kb-hero h1{font-family:var(--ff-serif);font-style:italic;font-weight:400;font-size:clamp(40px,6vw,72px);line-height:1.05;letter-spacing:-.01em;margin:0;color:var(--ink);max-width:760px}.kb-hero h1 em{font-style:italic;color:var(--accent)}.kb-hero-tagline{font-size:16px;line-height:1.5;color:var(--ink-2);margin:0;max-width:560px}.kb-hero-actions{display:flex;gap:10px;margin-top:8px;flex-wrap:wrap;justify-content:center}.kb-section{padding:56px 24px;max-width:1024px;margin:0 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h1{font-size:22px;font-weight:600;letter-spacing:-.015em;color:var(--ink);margin:0}.kb-paywall p{color:var(--ink-2);font-size:14px;line-height:1.5;margin:0}.kb-paywall ul{text-align:left;list-style:none;padding:12px 14px;margin:0;background:var(--bg-inset);border:1px solid var(--hairline-soft);border-radius:10px;display:grid;gap:8px}.kb-paywall li{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2)}