.features__header[data-astro-cid-w3dz36le]{margin-bottom:var(--space-10);max-width:46rem}.features__eyebrow[data-astro-cid-w3dz36le]{font-size:var(--fs-sm);text-transform:uppercase;letter-spacing:.08em;color:var(--brand);margin-bottom:.5rem;font-weight:600}.features__title[data-astro-cid-w3dz36le]{font-family:var(--font-display);font-size:var(--fs-4xl);line-height:var(--lh-tight);letter-spacing:-.01em;margin:0 0 .75rem}.features__lede[data-astro-cid-w3dz36le]{font-size:var(--fs-lg);color:var(--fg-soft);line-height:var(--lh-base);margin:0}.features__grid[data-astro-cid-w3dz36le]{gap:var(--space-5);grid-template-columns:1fr;margin:0;padding:0;list-style:none;display:grid}@media (width>=640px){.features__grid--cols-2[data-astro-cid-w3dz36le],.features__grid--cols-3[data-astro-cid-w3dz36le],.features__grid--cols-4[data-astro-cid-w3dz36le]{grid-template-columns:repeat(2,1fr)}}@media (width>=960px){.features__grid--cols-3[data-astro-cid-w3dz36le]{grid-template-columns:repeat(3,1fr)}.features__grid--cols-4[data-astro-cid-w3dz36le]{grid-template-columns:repeat(4,1fr)}}.features__icon[data-astro-cid-w3dz36le]{border-radius:var(--radius);background:var(--brand-subtle);width:40px;height:40px;color:var(--brand);justify-content:center;align-items:center;margin-bottom:.5rem;display:inline-flex}.features__item-title[data-astro-cid-w3dz36le]{font-family:var(--font-display);font-size:var(--fs-xl);line-height:var(--lh-snug);color:var(--fg);margin:0 0 .35rem}.features__item-desc[data-astro-cid-w3dz36le]{color:var(--fg-soft);line-height:var(--lh-base);margin:0}.features__more[data-astro-cid-w3dz36le]{font-size:var(--fs-sm);color:var(--brand);align-items:center;gap:.25rem;margin-top:auto;padding-top:.5rem;font-weight:500;display:inline-flex}.stats__header[data-astro-cid-xvvo3qve]{text-align:center;margin-bottom:var(--space-10)}.stats__eyebrow[data-astro-cid-xvvo3qve]{font-size:var(--fs-sm);text-transform:uppercase;letter-spacing:.08em;opacity:.8;margin-bottom:.5rem;font-weight:600}.stats__title[data-astro-cid-xvvo3qve]{font-family:var(--font-display);font-size:var(--fs-3xl);margin:0}.stats__grid[data-astro-cid-xvvo3qve]{gap:var(--space-8);text-align:center;grid-template-columns:1fr;margin:0;display:grid}@media (width>=640px){.stats__grid--cols-2[data-astro-cid-xvvo3qve],.stats__grid--cols-3[data-astro-cid-xvvo3qve],.stats__grid--cols-4[data-astro-cid-xvvo3qve]{grid-template-columns:repeat(2,1fr)}}@media (width>=960px){.stats__grid--cols-3[data-astro-cid-xvvo3qve]{grid-template-columns:repeat(3,1fr)}.stats__grid--cols-4[data-astro-cid-xvvo3qve]{grid-template-columns:repeat(4,1fr)}}.stats__item[data-astro-cid-xvvo3qve]{flex-direction:column;gap:.3rem;display:flex}.stats__value[data-astro-cid-xvvo3qve]{font-family:var(--font-display);font-size:var(--fs-5xl);letter-spacing:-.02em;font-weight:600;line-height:1}.stats__label[data-astro-cid-xvvo3qve]{color:var(--fg);margin:0;font-weight:500}.stats__desc[data-astro-cid-xvvo3qve]{font-size:var(--fs-sm);color:var(--fg-muted);margin:0}.faq__eyebrow[data-astro-cid-4chapdkw]{font-size:var(--fs-sm);text-transform:uppercase;letter-spacing:.08em;color:var(--brand);margin-bottom:.5rem;font-weight:600}.faq__title[data-astro-cid-4chapdkw]{font-family:var(--font-display);font-size:var(--fs-3xl);line-height:var(--lh-tight);margin:0 0 var(--space-8)}.faq__list[data-astro-cid-4chapdkw]{flex-direction:column;gap:0;margin:0;padding:0;display:flex}.faq__item[data-astro-cid-4chapdkw]{border-bottom:1px solid var(--border);padding:1.25rem 0}.faq__item[data-astro-cid-4chapdkw] summary[data-astro-cid-4chapdkw]{cursor:pointer;justify-content:space-between;align-items:center;gap:1rem;list-style:none;display:flex}.faq__item[data-astro-cid-4chapdkw] summary[data-astro-cid-4chapdkw]::-webkit-details-marker{display:none}.faq__item[data-astro-cid-4chapdkw] summary[data-astro-cid-4chapdkw]:after{content:"+";font-family:var(--font-mono);font-size:var(--fs-xl);color:var(--fg-muted);transition:transform var(--duration) var(--ease-standard)}.faq__item[data-astro-cid-4chapdkw][open] summary[data-astro-cid-4chapdkw]:after{content:"−";color:var(--brand)}.faq__question[data-astro-cid-4chapdkw]{font-family:var(--font-display);font-size:var(--fs-lg);color:var(--fg);flex:1;margin:0;font-weight:500}.faq__answer[data-astro-cid-4chapdkw]{color:var(--fg-soft);line-height:var(--lh-base);margin:.75rem 0 0}.faq__answer[data-astro-cid-4chapdkw] p[data-astro-cid-4chapdkw]{margin:0}.faq__item[data-astro-cid-4chapdkw] summary[data-astro-cid-4chapdkw]:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:var(--radius-sm)}.cta[data-astro-cid-f3wvl5jl]{gap:var(--space-6);align-items:center;display:grid}.cta--center[data-astro-cid-f3wvl5jl]{text-align:center;justify-items:center}.cta__title[data-astro-cid-f3wvl5jl]{font-family:var(--font-display);font-size:var(--fs-4xl);line-height:var(--lh-tight);text-wrap:balance;margin:0}.cta__lede[data-astro-cid-f3wvl5jl]{font-size:var(--fs-lg);opacity:.9;max-width:44rem;line-height:var(--lh-base);margin:.75rem 0 0}.cta--center[data-astro-cid-f3wvl5jl] .cta__lede[data-astro-cid-f3wvl5jl]{margin-inline:auto}.cta__actions[data-astro-cid-f3wvl5jl]{flex-wrap:wrap;justify-content:center;gap:.75rem;display:flex}@media (width>=900px){.cta--split[data-astro-cid-f3wvl5jl]{text-align:left;grid-template-columns:1fr auto}.cta--split[data-astro-cid-f3wvl5jl] .cta__actions[data-astro-cid-f3wvl5jl]{justify-content:flex-end}}.chess-hero{width:100%;max-width:820px}.chess-hero__main{aspect-ratio:7/4;grid-template-columns:4fr 3fr;gap:.75rem;display:grid}.chess-hero__board{aspect-ratio:1;border-radius:var(--radius-xl);width:100%;height:100%;box-shadow:var(--shadow-xl);background:#7c4b1e;overflow:hidden}.chess-hero__board svg{width:100%;height:100%;display:block}.chess-hero__sidebar{flex-direction:column;gap:.5rem;min-width:0;height:100%;min-height:0;display:flex;overflow:hidden}@media (width<=640px){.chess-hero{max-width:420px}.chess-hero__main{aspect-ratio:auto;flex-direction:column;gap:.5rem;display:flex}.chess-hero__board{aspect-ratio:1;width:100%;height:auto}.chess-hero__sidebar{width:100%;height:auto;min-height:0}}.chess-hero__controls{border:1.5px solid var(--ref-neutral-800);border-radius:var(--radius);background:var(--bg-soft);flex-shrink:0;align-items:center;gap:.4rem;padding:.3rem .5rem;display:flex}[data-theme=dark] .chess-hero__controls{border-color:var(--ref-neutral-200)}.ctrl{border:1px solid var(--border-strong);border-radius:var(--radius-sm);width:28px;height:28px;color:var(--fg);cursor:pointer;background:0 0;justify-content:center;align-items:center;transition:background .1s,color .1s,border-color .1s;display:inline-flex}.ctrl:hover{background:var(--brand);color:var(--brand-fg);border-color:var(--brand)}.ctrl:focus-visible{outline:2px solid var(--focus);outline-offset:2px}.ctrl .icon-play{display:none}#chess-play-btn[data-state=playing] .icon-pause{display:block}#chess-play-btn[data-state=playing] .icon-play,#chess-play-btn[data-state=paused] .icon-pause{display:none}#chess-play-btn[data-state=paused] .icon-play{display:block}#chess-play-btn[data-state=finished] .icon-pause{display:none}#chess-play-btn[data-state=finished] .icon-play{display:block}#chess-play-btn[data-state=finished]{background:var(--brand);color:var(--brand-fg);border-color:var(--brand)}.ctrl-status{color:var(--fg-muted);font-size:.7rem;font-family:var(--font-display);letter-spacing:.02em;margin-left:auto;font-style:italic}.chess-hero__moves{--grid-line:var(--ref-neutral-800);border:1.5px solid var(--ref-neutral-800);border-radius:var(--radius-lg);background:var(--bg-soft);flex-direction:column;flex:auto;width:100%;min-height:0;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;display:flex;overflow:hidden}[data-theme=dark] .chess-hero__moves{--grid-line:var(--ref-neutral-200);border-color:var(--ref-neutral-200)}@media (width<=640px){.chess-hero__moves{flex:none;height:220px}}.mhd,.mr{grid-template-columns:2.6rem minmax(0,1fr) minmax(0,1fr) 2.6rem;display:grid}.mhd{background:var(--bg-deep);border-bottom:1.5px solid var(--grid-line);flex-shrink:0;padding-right:10px}.mhd>span{text-transform:uppercase;letter-spacing:.06em;color:var(--fg);padding:.32rem .45rem;font-size:.62rem;font-weight:700}.mhd>span:first-child{text-align:center}.mhd>span:nth-child(2),.mhd>span:nth-child(3){text-align:left}.mhd>span:nth-child(4){text-align:center}.mhd>span+span,.mr>.mc+.mc{border-left:1px solid var(--grid-line)}.mbd{scrollbar-width:thin;scrollbar-color:var(--brand) var(--bg-deep);flex-direction:column;flex:1;justify-content:flex-start;display:flex;overflow-y:scroll}.mbd::-webkit-scrollbar{width:10px}.mbd::-webkit-scrollbar-track{background:var(--bg-deep);border-left:1px solid var(--grid-line)}.mbd::-webkit-scrollbar-thumb{background:var(--brand);border:2px solid var(--bg-deep);border-radius:5px}.mbd::-webkit-scrollbar-thumb:hover{background:var(--brand-hover)}.mr{border-top:1px solid var(--grid-line);flex-shrink:0}.mr:first-child{border-top:none}.mr:nth-child(2n){background:#0000000a}[data-theme=dark] .mr:nth-child(2n){background:#ffffff0a}.mc-num{text-align:center;color:var(--fg-muted);padding-inline:.2rem;font-size:.66rem;font-weight:600}.mc-white,.mc-black{text-align:left}.mc-note{text-align:center;padding-inline:.15rem;font-size:.72rem;font-weight:700}.mft{background:var(--brand);color:var(--brand-fg);border-top:1.5px solid var(--grid-line);text-transform:uppercase;letter-spacing:.07em;flex-shrink:0;justify-content:center;align-items:center;gap:.45rem;padding:.42rem .5rem;font-size:.68rem;font-weight:700;display:none}.mft.is-revealed{display:flex}.mft-icon{font-size:.95rem;line-height:1}.mft-notation{letter-spacing:.02em;background:#ffffff2e;border-radius:3px;padding:.08rem .4rem;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.mc{color:var(--fg-soft);white-space:nowrap;text-overflow:ellipsis;cursor:default;min-width:0;padding:.22rem .45rem;font-size:.72rem;line-height:1.55;transition:background 80ms,color 80ms;overflow:hidden}.mph{background:0 0}.mc.jp{background:var(--brand);color:var(--brand-fg);font-weight:600}.mc-note.jp{color:var(--brand-fg)!important}.mc-note.ann-brilliant{color:#0e7490}.mc-note.ann-great{color:#1e3a8a}.mc-note.ann-good{color:#2563eb}.mc-note.ann-inaccuracy{color:#a16207}.mc-note.ann-mistake{color:#c2410c}.mc-note.ann-blunder{color:#dc2626}.mc-note.ann-miss{color:#be123c}.chess-hero__caption{text-align:center;border-radius:var(--radius-lg);color:#f5e6d3;font-family:var(--font-display);font-size:var(--fs-base);background:linear-gradient(#000000d9 0%,#0000008c 65%,#0000 100%);flex-direction:column;align-items:center;gap:.45rem;margin:.75rem 0 0;padding:1rem 1rem 1.1rem;display:flex}.chess-hero__caption .players{flex-wrap:wrap;justify-content:center;align-items:center;gap:.65rem;font-style:normal;display:inline-flex}.chess-hero__caption .player{align-items:center;gap:.45rem;display:inline-flex}.chess-hero__caption .player-name{font-weight:700;font-size:var(--fs-lg);color:#fff;letter-spacing:.005em}.chess-hero__caption .player-color{text-transform:uppercase;letter-spacing:.09em;color:#f5e6d3;border-radius:var(--radius-sm);border:1px solid #f5e6d380;padding:.1rem .45rem;font-size:.7rem;font-weight:700}.chess-hero__caption .vs{color:#f5e6d3a6;font-size:.85rem;font-style:italic;font-weight:600}.chess-hero__caption .kn{width:28px;height:28px;box-shadow:var(--shadow-sm);border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.chess-hero__caption .kn img{width:22px;height:22px}.chess-hero__caption .kn-w{background:#2b1a08;border:1px solid #1a0f04}.chess-hero__caption .kn-b{background:#f5e6d3;border:1px solid #c8a878}.chess-hero__caption .meta{font-size:var(--fs-sm);color:#f5e6d3c7;font-style:italic}main>section.section.section--soft:first-child{background:radial-gradient(ellipse 60% 70% at 12% 0%, #c8823a2e, transparent 60%), radial-gradient(ellipse 80% 60% at 100% 100%, #7c4b1e24, transparent 60%), linear-gradient(180deg, var(--bg-soft) 0%, color-mix(in srgb, var(--brand-subtle) 35%, var(--bg-soft)) 100%);position:relative;overflow:hidden}[data-theme=dark] main>section.section.section--soft:first-child{background:radial-gradient(ellipse 60% 70% at 12% 0%, #c8823a1a, transparent 60%), radial-gradient(ellipse 80% 60% at 100% 100%, #7c4b1e2e, transparent 60%), linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-deep) 100%)}main>section.section.section--soft:first-child:before{content:"";pointer-events:none;will-change:transform;z-index:0;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'><rect width='40' height='40' fill='%237c4b1e' opacity='0.06'/><rect x='40' y='40' width='40' height='40' fill='%237c4b1e' opacity='0.06'/></svg>");background-repeat:repeat;background-size:80px 80px;animation:14s linear infinite chess-bg-scroll;position:absolute;inset:-160px 0}@keyframes chess-bg-scroll{0%{transform:translate(0,0)}to{transform:translateY(80px)}}@media (prefers-reduced-motion:reduce){main>section.section.section--soft:first-child:before{animation:none}}main>section.section.section--soft:first-child:after{content:"";pointer-events:none;z-index:0;background:linear-gradient(#0000 45%,#00000073 100%);position:absolute;inset:0}[data-theme=dark] main>section.section.section--soft:first-child:after{background:linear-gradient(#0000 40%,#0000008c 100%)}main>section.section.section--soft:first-child>*{z-index:1;position:relative}@media (width>=900px){main>section.section.section--soft:first-child .hero--split{grid-template-columns:1fr 1.4fr!important}}.section--soft+.section{border-top:3px solid var(--brand)}