.cp-challenge{--cpub-max:74rem;--cpub-anchor-offset:5rem}.cp-chhero{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);align-items:start;gap:2.5rem;padding:2.5rem 0 .5rem;display:grid}.cp-chhero-copy,.cp-chhero-media{min-width:0}.cp-chhero-title{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.03em;margin:0;font-size:clamp(2rem,4.6vw,3.4rem);font-weight:900;line-height:1.04}.cp-chhero-lead{color:var(--ink);max-width:46ch;margin:1.1rem 0 0;font-size:clamp(1rem,1.35vw,1.15rem)}.cp-chhero-body{color:var(--muted);max-width:52ch;margin:.9rem 0 0;font-size:.95rem}.cp-chhero-actions{flex-wrap:wrap;gap:.6rem;margin-top:1.5rem;display:flex}.cp-chhero-aside{color:var(--muted);font-size:.85rem;font-family:var(--font-plex-mono), ui-monospace, monospace;margin:.9rem 0 0}.cp-chpills{flex-wrap:wrap;gap:.4rem;margin:1.35rem 0 0;padding:0;list-style:none;display:flex}.cp-chpills li{border:var(--cpub-border);background:var(--soft);color:var(--ink);white-space:nowrap;border-radius:999px;padding:.25rem .7rem;font-size:.8rem;font-weight:600}.cp-charc{border:var(--cpub-border);border-radius:var(--cpub-radius);background:var(--card);box-shadow:var(--shadow);padding:1.15rem 1.25rem 1rem}.cp-charc-head{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 .9rem;font-size:.7rem;font-weight:600}.cp-charc-list{margin:0;padding:0;list-style:none}.cp-charc-list li{border-left:2px solid var(--line);min-width:0;margin-left:.3rem;padding:0 0 1.05rem 1.15rem;position:relative}.cp-charc-list li[data-terminal=true]{border-left-color:#0000;padding-bottom:0}.cp-charc-dot{background:var(--card);border:2px solid var(--muted);border-radius:999px;width:9px;height:9px;position:absolute;top:.3rem;left:0;transform:translate(-50%)}.cp-charc-list li[data-terminal=true] .cp-charc-dot{background:var(--ink);border-color:var(--ink)}.cp-charc-stage{font-size:.92rem;font-weight:700;line-height:1.2;display:block}.cp-charc-detail{color:var(--muted);margin-top:.1rem;font-size:.82rem;display:block}.cp-charc-foot{border-top:1px dashed var(--line);color:var(--muted);margin:1rem 0 0;padding-top:.8rem;font-size:.8rem}.cp-chsection{scroll-margin-top:var(--cpub-anchor-offset);margin-top:3.75rem}.cp-chsection[data-tone=feature]{background:var(--soft);border-radius:var(--cpub-radius);margin-left:-1.25rem;margin-right:-1.25rem;padding:2rem 1.5rem}.cp-chsection-head{max-width:46rem;margin-bottom:1.5rem}.cp-chsection-head h2{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.025em;margin:0;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:900;line-height:1.12}.cp-chsection-lead{color:var(--muted);margin:.7rem 0 0;font-size:1rem}.cp-chsection-foot{color:var(--muted);max-width:52rem;margin:1.1rem 0 0;font-size:.88rem}.cp-chsteps{gap:.5rem;margin:0;padding:0;list-style:none;display:grid}.cp-chsteps li{border:var(--cpub-border);border-radius:var(--cpub-radius);background:var(--card);grid-template-columns:auto minmax(0,1fr);align-items:start;gap:1rem;padding:.9rem 1.1rem;display:grid}.cp-chstep-num{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.08em;color:var(--muted);padding-top:.15rem;font-size:.85rem;font-weight:700}.cp-chsteps h3{font-family:var(--font-archivo), system-ui, sans-serif;margin:0 0 .3rem;font-size:1rem;font-weight:800}.cp-chsteps p{color:var(--muted);margin:0;font-size:.9rem}.cp-chbadge{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;border-radius:999px;align-items:center;gap:.35rem;padding:.14rem .6rem;font-size:.66rem;font-weight:700;display:inline-flex}.cp-chbadge[data-status=open]{background:var(--soft);border:var(--cpub-border);color:var(--ink)}.cp-chbadge[data-status=open]:before{content:"";background:var(--done);border-radius:999px;width:6px;height:6px}.cp-chbadge[data-status=solved]{background:var(--ink);color:var(--inverse);border:1px solid var(--ink)}.cp-chbadge[data-kind=category]{border:1px dashed var(--line);color:var(--muted);background:0 0}.cp-chstory{border:1.5px solid var(--ink);border-radius:var(--cpub-radius);background:var(--card);box-shadow:var(--shadow);padding:1.5rem}.cp-chstory-badges{flex-wrap:wrap;align-items:center;gap:.4rem;margin-bottom:.7rem;display:flex}.cp-chstory-letter{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-size:.72rem}.cp-chstory-head h3{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.025em;margin:0;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:900;line-height:1.1}.cp-chstory-question{max-width:46rem;margin:.6rem 0 0;font-size:1.02rem}.cp-chtrack{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));align-items:stretch;gap:.75rem;margin:1.5rem 0 0;padding:0;list-style:none;display:grid}.cp-chtrack-step{border:var(--cpub-border);border-radius:var(--cpub-radius-sm);background:var(--paper);border-top:3px solid var(--line);min-width:0;padding:.9rem 1rem}.cp-chtrack-step[data-terminal=true]{border-top-color:var(--ink);background:var(--soft)}.cp-chtrack-stage{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 .45rem;font-size:.68rem;font-weight:700}.cp-chtrack-body{color:var(--ink);margin:0;font-size:.88rem}.cp-chtrack-body b{font-weight:800}.cp-chtrack-body a{color:var(--ink);text-underline-offset:3px}.cp-chtrack-list{color:var(--muted);gap:.2rem;margin:.6rem 0 0;padding-left:1rem;font-size:.83rem;display:grid}.cp-chstory-foot{border-top:1px dashed var(--line);margin-top:1.25rem;padding-top:1rem}.cp-chstory-foot p{color:var(--muted);max-width:52rem;margin:0;font-size:.9rem}.cp-chgrid{grid-template-columns:1fr;gap:.75rem;margin:0;padding:0;list-style:none;display:grid}@media (min-width:46rem){.cp-chgrid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (min-width:64rem){.cp-chgrid{grid-template-columns:repeat(3,minmax(0,1fr))}}.cp-chcard{border:var(--cpub-border);border-radius:var(--cpub-radius);background:var(--card);flex-direction:column;min-width:0;padding:1.1rem 1.15rem;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex}.cp-chcard:hover,.cp-chcard:focus-within{border-color:var(--ink);box-shadow:var(--shadow);transform:translateY(-2px)}.cp-chcard[data-status=solved]{border-color:var(--ink);background:var(--soft)}.cp-chcard-top{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.4rem;margin-bottom:.7rem;display:flex}.cp-chcard-letter{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-size:.7rem;font-weight:700}.cp-chcard-badges{flex-wrap:wrap;gap:.3rem;display:inline-flex}.cp-chcard-title{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.015em;margin:0 0 .45rem;font-size:1.12rem;font-weight:800;line-height:1.18}.cp-chcard-question{color:var(--muted);margin:0;font-size:.88rem}.cp-chcard-tags{flex-wrap:wrap;gap:.3rem;margin:.85rem 0 0;padding:0;list-style:none;display:flex}.cp-chcard-tags li{border:1px solid var(--line);border-radius:var(--cpub-radius-sm);background:var(--paper);color:var(--ink);padding:.15rem .5rem;font-size:.74rem}.cp-chcard-outputs{color:var(--muted);margin:.85rem 0 auto;padding-bottom:1.1rem;font-size:.78rem}.cp-chcard-outputs-label{font-family:var(--font-plex-mono), ui-monospace, monospace;letter-spacing:.14em;text-transform:uppercase;margin-bottom:.2rem;font-size:.62rem;font-weight:700;display:block}.cp-chcard-cta{text-align:center;border:1.5px solid var(--ink);background:var(--ink);color:var(--inverse);border-radius:999px;padding:.5rem 1rem;font-size:.88rem;font-weight:700;text-decoration:none;display:block}.cp-chcard-cta[data-variant=ghost]{color:var(--ink);background:0 0}.cp-chcard-cta:hover,.cp-chcard-cta:focus-visible{filter:brightness(1.15)}.cp-chcard-cta:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.cp-chcard-cta[data-variant=ghost]:hover,.cp-chcard-cta[data-variant=ghost]:focus-visible{background:var(--ink);color:var(--inverse);filter:none}.cp-chpitch{scroll-margin-top:var(--cpub-anchor-offset);border:var(--cpub-border);border-radius:var(--cpub-radius);background:var(--card);grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);align-items:center;gap:1.5rem;margin-top:2.25rem;padding:1.35rem 1.5rem;display:grid}.cp-chpitch h2{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.02em;margin:0 0 .5rem;font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:800;line-height:1.16}.cp-chpitch p{color:var(--muted);margin:0;font-size:.92rem}.cp-chpitch-action{justify-items:start;gap:.5rem;display:grid}.cp-chpitch-note{font-size:.8rem}.cp-chpitch-note span{color:var(--ink);word-break:break-word;font-weight:600}.cp-chskills{flex-wrap:wrap;gap:.4rem;margin:0;padding:0;list-style:none;display:flex}.cp-chskills li{border:var(--cpub-border);border-radius:var(--cpub-radius-sm);background:var(--card);padding:.35rem .75rem;font-size:.85rem;font-weight:600}.cp-chapply{scroll-margin-top:var(--cpub-anchor-offset);border:1.5px solid var(--ink);border-radius:var(--cpub-radius);background:var(--card);margin-top:3.75rem;padding:1.75rem 1.5rem}.cp-chapply:focus-visible{outline:2px solid var(--ink);outline-offset:3px}.cp-chapply-head{max-width:44rem;margin-bottom:1.35rem}.cp-chapply-head h2{font-family:var(--font-archivo), system-ui, sans-serif;letter-spacing:-.025em;margin:0;font-size:clamp(1.4rem,2.6vw,2rem);font-weight:900;line-height:1.12}.cp-chapply-selected{border-left:3px solid var(--ink);background:var(--soft);border-radius:0 var(--cpub-radius-sm) var(--cpub-radius-sm) 0;flex-wrap:wrap;align-items:baseline;gap:.15rem .5rem;margin:0 0 1.25rem;padding:.6rem .85rem;font-size:.88rem;display:flex}.cp-chapply-selected span{color:var(--muted)}.cp-chapply-selected b{color:var(--ink);font-weight:800}.cp-chapply-selected .cp-chapply-unselected b{font-weight:700}.cp-chform-grid{grid-template-columns:repeat(auto-fit,minmax(14rem,1fr));gap:.35rem 1rem;display:grid}.cp-chfield{align-content:start;gap:.3rem;min-width:0;margin-bottom:.6rem;display:grid}.cp-chfield[data-wide=true]{grid-column:1/-1}.cp-chfield[data-long=true]{margin-top:.5rem}.cp-chfield[data-long=true] label{font-family:var(--font-inter), system-ui, sans-serif;letter-spacing:0;text-transform:none;color:var(--ink);font-size:.95rem;font-weight:700}.cp-chfield label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-size:.74rem;font-family:var(--font-plex-mono), ui-monospace, monospace;font-weight:600}.cp-chfield input,.cp-chfield select,.cp-chfield textarea{font:inherit;color:var(--ink);background:var(--paper);border:var(--cpub-border);border-radius:var(--cpub-radius-sm);width:100%;min-width:0;padding:.55rem .7rem;font-size:.95rem}.cp-chfield textarea{resize:vertical;line-height:1.5}.cp-chfield input:focus-visible,.cp-chfield select:focus-visible,.cp-chfield textarea:focus-visible{outline:2px solid var(--ink);outline-offset:1px}.cp-chfield input:disabled,.cp-chfield select:disabled,.cp-chfield textarea:disabled{opacity:.6}.cp-chfield[data-invalid=true] input,.cp-chfield[data-invalid=true] select,.cp-chfield[data-invalid=true] textarea{border-color:var(--bad);border-width:1.5px}.cp-chfield-hint{color:var(--muted);margin:0;font-size:.78rem}.cp-chfield-error{color:var(--bad);min-height:1.1em;margin:0;font-size:.78rem;font-weight:600}.cp-chcount{text-align:right;color:var(--muted);font-size:.76rem;font-family:var(--font-plex-mono), ui-monospace, monospace;grid-column:1/-1;margin:0 0 .4rem}.cp-chhoneypot{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.cp-chform-foot{border-top:1px dashed var(--line);justify-items:start;gap:.9rem;margin-top:.6rem;padding-top:1.1rem;display:grid}.cp-chform-foot .cp-btn[disabled]{opacity:.65;cursor:progress}.cp-chform-legal{color:var(--muted);max-width:52rem;margin:0;font-size:.76rem}.cp-chform-error{color:var(--bad);min-height:1.2em;margin:.9rem 0 0;font-size:.88rem;font-weight:600}.cp-chform-error a{color:var(--bad)}.cp-chsuccess{border:var(--cpub-border);border-radius:var(--cpub-radius);background:var(--soft);text-align:center;justify-items:center;gap:.5rem;padding:2rem 1.5rem;display:grid}.cp-chsuccess-mark{background:var(--ink);width:2.5rem;height:2.5rem;color:var(--inverse);border-radius:999px;place-items:center;margin:0;font-size:1.25rem;font-weight:900;display:grid}.cp-chsuccess h3{font-family:var(--font-archivo), system-ui, sans-serif;margin:.4rem 0 0;font-size:1.35rem;font-weight:800}.cp-chsuccess p{color:var(--muted);max-width:40rem;margin:0;font-size:.94rem}.cp-chsuccess .cp-btn{margin-top:.9rem}@media (max-width:60rem){.cp-chhero{grid-template-columns:1fr;gap:1.75rem;padding-top:1.75rem}.cp-chpitch{grid-template-columns:1fr;gap:1rem}}@media (max-width:44rem){.cp-chsection{margin-top:2.75rem}.cp-chsection[data-tone=feature]{border-radius:0;margin-left:-1rem;margin-right:-1rem;padding:1.5rem 1rem}.cp-chstory,.cp-chapply{padding:1.25rem 1rem}.cp-chpitch{padding:1.15rem 1rem}.cp-chapply{margin-top:2.75rem}.cp-chform-foot .cp-btn,.cp-chsuccess .cp-btn,.cp-chpitch-action .cp-btn{text-align:center;width:100%}.cp-chpitch-action{justify-items:stretch}}@media (max-width:22.5rem){.cp-chhero-title{font-size:1.85rem}.cp-chhero-actions .cp-btn{text-align:center;width:100%}.cp-chpills li{white-space:normal}}@media (prefers-reduced-motion:no-preference){.cp-challenge .cp-chhero-copy,.cp-challenge .cp-chhero-media,.cp-challenge .cp-chsection{animation:.42s ease-out both cp-ch-rise}}@media (prefers-reduced-motion:reduce){.cp-chcard{transition:none}.cp-chcard:hover,.cp-chcard:focus-within{transform:none}}@keyframes cp-ch-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}