html:root:has(.pips-page){--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light}html:root[data-page-theme=dark]:has(.pips-page){--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}html:has(.pips-page){height:auto;min-height:100%;overflow:auto}html:has(.pips-page) body{height:auto;min-height:100%;overflow:auto}html:has(.pips-page){scrollbar-gutter:stable}html:has(.pips-page) body{background:#f6f6f3}html[data-page-theme=dark]:has(.pips-page) body{background:#121417}.pips-page{--page:#f6f6f3;--ink:#1f2a33;--ink-soft:#3e4c57;--muted:#6b7781;--line:#1f2a3324;--line-strong:#1f2a333d;--wash:#1f2a330e;--surface:#fff;--surface-hover:#fbfbfa;--on-ink:#fff;--ink-hover:#2c3a45;--raise:0 1px 2px #1f2a331f, 0 0 0 .5px #1f2a3314;--bad:#b4473a;--good:#2f7d4f;--select-ink:#fff;--halo:transparent;background:var(--page);min-height:100svh;color:var(--ink);transition:background-color .2s,color .2s}:root[data-page-theme=dark] .pips-page{--page:#121417;--ink:#e8ecf0;--ink-soft:#b3bcc5;--muted:#858f99;--line:#e8ecf01f;--line-strong:#e8ecf038;--wash:#e8ecf012;--surface:#1c1f24;--surface-hover:#23272d;--on-ink:#121417;--ink-hover:#fff;--raise:0 1px 2px #0006, 0 0 0 .5px #ffffff0f;--bad:#e07c6f;--good:#63c08a;--select-ink:#121417}.pips-nav-end{align-items:center;gap:14px;display:flex}.pips-page .theme-toggle{width:34px;height:34px;color:var(--ink-soft);cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;margin-right:-8px;padding:0;transition:color .15s,background-color .15s;display:grid}.pips-page .theme-toggle:hover{color:var(--ink);background:var(--wash)}.pips-page .theme-toggle:focus-visible{outline:2px solid var(--ink);outline-offset:2px}.pips-wrap{width:min(720px,100%);margin:0 auto;padding:28px clamp(16px,4vw,32px) 64px}.pips-nav{justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.pips-back{letter-spacing:-.01em;color:var(--ink-soft);align-items:center;gap:6px;font-size:15px;font-weight:500;text-decoration:none;transition:color .15s;display:inline-flex}.pips-back span{transition:transform .15s}.pips-back:hover{color:var(--ink)}.pips-back:hover span{transform:translate(-2px)}.pips-head h1{letter-spacing:-.035em;margin:0 0 10px;font-size:clamp(30px,5vw,44px);font-weight:500;line-height:1.04}.pips-nyt{vertical-align:-.06em;background:currentColor;width:.62em;height:.83em;margin-right:.22em;display:inline-block;-webkit-mask:url(/logos/nyt.svg) 50%/contain no-repeat;mask:url(/logos/nyt.svg) 50%/contain no-repeat}.pips-lede{letter-spacing:-.015em;max-width:560px;color:var(--ink-soft);text-wrap:pretty;margin:0;font-size:clamp(16px,2vw,18px);line-height:1.5}.pips-inline-link,.pips-prose a{color:var(--ink);text-decoration:underline;-webkit-text-decoration-color:var(--line-strong);text-decoration-color:var(--line-strong);text-underline-offset:4px;font-weight:500;text-decoration-thickness:1px;transition:text-decoration-color .15s}.pips-inline-link:hover,.pips-prose a:hover{text-decoration-color:currentColor}.pips-tool{margin-top:clamp(32px,6vh,56px)}.pips-toolbar{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px 24px;padding-bottom:20px;display:flex}.pips-date{align-items:center;gap:10px;display:flex}.pips-date-label{text-align:center;min-width:15.5em;display:grid}.pips-date-text{letter-spacing:-.01em;font-variant-numeric:tabular-nums;font-size:16px;font-weight:500}.pips-date-sub{color:var(--muted);font-size:13px;line-height:1.4}.pips-round-btn{border:1px solid var(--line);background:var(--surface);width:34px;height:34px;color:var(--ink);cursor:pointer;border-radius:50%;flex:none;justify-content:center;align-items:center;padding:0;transition:background-color .15s,border-color .15s,opacity .15s;display:inline-flex}.pips-round-btn:hover:not(:disabled){border-color:var(--line-strong);background:var(--surface-hover)}.pips-round-btn:disabled{opacity:.35;cursor:default}.pips-seg{background:var(--wash);border-radius:999px;padding:3px;display:inline-flex}.pips-seg button{height:32px;color:var(--ink-soft);font:inherit;letter-spacing:-.005em;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:0 16px;font-size:14px;font-weight:500;transition:background-color .15s,color .15s,box-shadow .15s}.pips-seg button:hover{color:var(--ink)}.pips-seg button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:var(--raise)}.pips-stage{justify-content:center;min-height:420px;padding-top:40px;display:flex}.pips-loading{color:var(--muted);flex-direction:column;align-items:center;gap:14px;padding-top:96px;font-size:14px;display:flex}.pips-spinner{border:2px solid var(--line);border-top-color:var(--ink);border-radius:50%;width:22px;height:22px;animation:.8s linear infinite pips-spin}@keyframes pips-spin{to{transform:rotate(360deg)}}.pips-error{text-align:center;flex-direction:column;align-items:center;gap:10px;padding-top:96px;display:flex}.pips-error p{color:var(--ink-soft);margin:0;font-size:16px}.pips-solver{flex-direction:column;align-items:center;gap:36px;width:100%;display:flex}.pips-board{justify-content:center;max-width:100%;display:flex}.pips-controls{flex-direction:column;align-items:center;gap:22px;width:100%;display:flex}.pips-swap{animation:.25s ease-out pips-fade}@keyframes pips-fade{0%{opacity:0;transform:translateY(4px)}}@media (prefers-reduced-motion:reduce){.pips-swap{animation:none}}.pips-actions{flex-wrap:wrap;justify-content:center;align-items:center;gap:10px;display:flex}.pips-btn{border:1px solid var(--line-strong);background:var(--surface);height:40px;color:var(--ink);font:inherit;letter-spacing:-.01em;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;padding:0 20px;font-size:15px;font-weight:500;transition:background-color .15s,border-color .15s,opacity .15s;display:inline-flex}.pips-btn:hover:not(:disabled){border-color:var(--ink-soft)}a.pips-btn{text-decoration:none}.pips-btn--primary{border-color:var(--ink);background:var(--ink);color:var(--on-ink)}.pips-btn--primary:hover:not(:disabled){background:var(--ink-hover);border-color:var(--ink-hover)}.pips-btn:disabled,.pips-icon-btn:disabled{opacity:.4;cursor:default}.pips-icon-btn{border:1px solid var(--line-strong);background:var(--surface);width:40px;height:40px;color:var(--ink);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;padding:0;transition:background-color .15s,border-color .15s;display:inline-flex}.pips-icon-btn:hover:not(:disabled){border-color:var(--ink-soft)}.pips-icon-btn--primary{border-color:var(--ink);background:var(--ink);color:var(--on-ink)}.pips-icon-btn--primary:hover:not(:disabled){background:var(--ink-hover)}.pips-text-btn,.pips-link-btn{color:var(--ink-soft);font:inherit;cursor:pointer;text-underline-offset:4px;background:0 0;border:0;padding:0;font-size:14px;font-weight:500;-webkit-text-decoration:underline #0000;text-decoration:underline #0000;transition:color .15s,text-decoration-color .15s}.pips-link-btn{color:var(--muted);font-size:13px}.pips-text-btn:hover,.pips-link-btn:hover{color:var(--ink);text-decoration-color:currentColor}.pips-status{min-height:1.5em;color:var(--muted);text-align:center;margin:-6px 0 0;font-size:14px;line-height:1.5}.pips-stats{border:1px solid var(--line);background:var(--surface);border-radius:16px;grid-template-columns:repeat(3,minmax(0,1fr));width:min(420px,100%);margin:0;display:grid}.pips-stat{text-align:center;padding:12px 8px}.pips-stat+.pips-stat{border-left:1px solid var(--line)}.pips-stat dt{color:var(--muted);font-size:12px;font-weight:500}.pips-stat dd{letter-spacing:-.01em;font-variant-numeric:tabular-nums;white-space:nowrap;margin:2px 0 0;font-size:17px;font-weight:500}.pips-range{accent-color:var(--ink);cursor:pointer}.pips-scrub{width:min(420px,100%);margin:0}.pips-speed{color:var(--ink-soft);align-items:center;gap:10px;margin-left:8px;font-size:14px;font-weight:500;display:inline-flex}.pips-speed .pips-range{width:112px}@media (max-width:640px){.pips-wrap{padding-top:20px;padding-bottom:40px}.pips-nav{margin-bottom:16px}.pips-tool{margin-top:28px}.pips-toolbar{flex-direction:column;align-items:stretch;gap:14px;padding-bottom:16px}.pips-date{justify-content:space-between}.pips-date-label{min-width:0}.pips-date-text{font-size:15px}.pips-seg{display:flex}.pips-seg button{flex:1}.pips-stage{min-height:360px;padding-top:24px}.pips-solver{gap:22px}.pips-controls{gap:16px}.pips-btn{height:40px;padding:0 18px}.pips-speed{margin-left:4px}.pips-speed .pips-range{width:96px}}.pips-demo{border:1px solid var(--line);background:var(--surface);border-radius:22px;margin:44px 0 8px;padding:32px 20px}.pips-demo-head{text-align:center;margin-bottom:28px}.pips-demo-head h2{letter-spacing:-.02em;margin:0 0 6px;font-size:20px;font-weight:500}.pips-demo-head p{color:var(--muted);margin:0;font-size:15px}.pips-demo-body{flex-direction:column;align-items:center;gap:22px;display:flex}.pips-demo-msg{text-align:center;max-width:420px;min-height:3em;color:var(--ink-soft);margin:0;font-size:15px;line-height:1.5}.pips-demo-msg[data-tone=error],.pips-demo-msg[data-tone=backtrack]{color:var(--bad)}.pips-demo-msg[data-tone=solved]{color:var(--good)}.pips-dots{gap:6px;display:flex}.pips-dots span{background:var(--line-strong);border-radius:50%;width:6px;height:6px;transition:background-color .2s}.pips-dots span[data-on]{background:var(--ink)}.pips-prose-section{margin-top:56px}.pips-prose-section h2{letter-spacing:-.025em;margin:0 0 14px;font-size:clamp(20px,3vw,24px);font-weight:500;line-height:1.2}.pips-eyebrow{letter-spacing:.01em;color:var(--muted);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.pips-prose{letter-spacing:-.01em;color:var(--ink-soft);font-size:17px;line-height:1.6}.pips-prose p,.pips-prose ul,.pips-prose dl,.pips-prose pre,.pips-prose table{margin:0 0 16px}.pips-prose strong,.pips-prose em{color:var(--ink)}.pips-prose strong{font-weight:600}.pips-prose ul{padding-left:1.2em}.pips-prose li+li{margin-top:6px}.pips-prose code{background:var(--wash);color:var(--ink);border-radius:5px;padding:1px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.86em}.pips-prose pre{border:1px solid var(--line);background:var(--surface);border-radius:14px;padding:16px 18px;font-size:14px;line-height:1.55;overflow-x:auto}.pips-prose pre code{background:0 0;padding:0;font-size:13px}.pips-rules{background:var(--wash);border-radius:14px;grid-template-columns:auto 1fr;gap:8px 18px;padding:16px 18px;font-size:16px;display:grid}.pips-rules dt{color:var(--ink);white-space:nowrap;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14px}.pips-rules dd{margin:0}.pips-table{border-collapse:collapse;width:100%;font-size:15px}.pips-table th,.pips-table td{text-align:left;vertical-align:top;padding:7px 12px 7px 0}.pips-table th{border-bottom:1px solid var(--line);color:var(--muted);padding-bottom:10px;font-size:13px;font-weight:500}.pips-table tr:first-child td{padding-top:12px}.pips-table td:first-child{color:var(--ink);font-weight:500}.pips-article-end{justify-content:center;margin-top:56px;display:flex}@media (max-width:640px){.pips-demo{margin-top:32px;padding:24px 12px}.pips-prose-section,.pips-article-end{margin-top:44px}.pips-prose{font-size:16px}}