.tk{--tk-cyan:#4dd6e8;--tk-cyan-dim:#4dd6e88c;--tk-line:#ffffff12;--tk-red:#e53935;isolation:isolate;background:#08090c;min-height:100vh;position:relative}.tk:before{content:"";z-index:-2;background-image:linear-gradient(90deg,#ffffff09 1px,#0000 1px),linear-gradient(#ffffff09 1px,#0000 1px),linear-gradient(90deg,#4dd6e80d 1px,#0000 1px),linear-gradient(#4dd6e80d 1px,#0000 1px);background-size:32px 32px,32px 32px,256px 256px,256px 256px;position:fixed;inset:0;-webkit-mask-image:radial-gradient(120% 80% at 50% 0,#000 0%,#0000 75%);mask-image:radial-gradient(120% 80% at 50% 0,#000 0%,#0000 75%)}.tk:after{content:"";z-index:-1;filter:blur(20px);pointer-events:none;background:radial-gradient(50% 60% at 20% 0,#e5393529,#0000 70%),radial-gradient(45% 55% at 80% 10%,#4dd6e81f,#0000 70%);height:70vh;position:fixed;inset:-20% -10% auto}.tk-mono{font-family:var(--font-mono), ui-monospace, SFMono-Regular, Menlo, monospace;font-feature-settings:"ss01", "zero"}.tk-kicker{letter-spacing:.16em;text-transform:uppercase;color:var(--tk-cyan-dim);align-items:center;gap:8px;font-size:11px;display:inline-flex}.tk-kicker:before{content:"";background:var(--tk-cyan);border-radius:999px;width:6px;height:6px;box-shadow:0 0 0 3px #4dd6e826,0 0 12px #4dd6e8e6}.tk-tag{color:#9fe8f2;letter-spacing:.06em;text-transform:uppercase;background:#4dd6e812;border:1px solid #4dd6e847;padding:3px 8px;font-size:11px;display:inline-block}.tk-card{border:1px solid var(--tk-line);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);background:linear-gradient(#ffffff09,#ffffff03);position:relative}.tk-card:before,.tk-card:after{content:"";pointer-events:none;border:1px solid #4dd6e873;width:10px;height:10px;position:absolute}.tk-card:before{border-bottom:0;border-right:0;top:-1px;left:-1px}.tk-card:after{border-top:0;border-left:0;bottom:-1px;right:-1px}.tk-row{border-top:1px solid var(--tk-line);transition:background .12s}.tk-row:hover{background:#4dd6e809}.tk-row:hover .tk-index{color:var(--tk-cyan)}.tk-index{color:#ffffff40;transition:color .12s}.tk-figure{border:1px solid var(--tk-line);background:radial-gradient(80% 60% at 50% 0,#4dd6e812,#0000 70%),#ffffff05}.tk-figure figcaption{border-top:1px solid var(--tk-line)}@media (prefers-reduced-motion:no-preference){.tk-draw{stroke-dasharray:var(--len,600);stroke-dashoffset:var(--len,600);animation:1.4s cubic-bezier(.4,0,.2,1) forwards tk-draw}.tk-pulse{animation:2.6s ease-in-out infinite tk-pulse}}@keyframes tk-draw{to{stroke-dashoffset:0}}@keyframes tk-pulse{0%,to{opacity:.35;r:3}50%{opacity:1;r:4.5}}.tk-h2{align-items:baseline;gap:12px;display:flex}.tk-h2:after{content:"";background:linear-gradient(90deg,#4dd6e859,#0000);flex:1;height:1px}.tk-answer{border-left:2px solid var(--tk-cyan);background:linear-gradient(90deg,#4dd6e814,#0000 60%)}.tk-limits{background:linear-gradient(90deg,#e5393514,#0000 60%);border-left:2px solid #e53935b3}