.pc-theme-pageforge-chess.pc-immersive{--pc-env-bg:url(/play/pageforge-chess/env.webp) center / cover no-repeat, radial-gradient(120% 90% at 50% 4%, #eef3f8 0%, #dbe6f0 40%, #dbe6f000 72%), linear-gradient(to bottom, #e6eef6 0%, #c3d4e4 46%, #6f90ac 80%, #3d566d 100%);--pc-env-bg-dark:url(/play/pageforge-chess/env-dark.webp) center / cover no-repeat, radial-gradient(120% 90% at 50% 4%, #202a33 0%, #1a222a 46%, #1a222a00 74%), linear-gradient(to bottom, #1e262e 0%, #141a20 52%, #0c1014 100%);--pc-env-bg-flat:url(/play/pageforge-chess/env.webp) center / cover no-repeat, oklab(89.7059% -.00884634 -.0207288);--pc-env-bg-flat-dark:url(/play/pageforge-chess/env-dark.webp) center / cover no-repeat, #10151a}.pgfc-h{color:var(--ff-forge-text);margin:0 0 .4rem;font-size:1.7rem;font-weight:800}.pgfc-hero{margin-top:.5rem}.pgfc-hero-inner{border:2px solid var(--ff-outline);border-top:6px solid var(--pc-select);background:var(--ff-warm);border-radius:16px;max-width:66ch;padding:1.1rem 1.25rem}.pgfc-hero-sub{color:var(--ff-forge-text);margin:.1rem 0 .6rem;font-size:1.15rem;font-weight:800}.pgfc-cta{margin-top:.9rem;display:inline-flex}.pgfc-section{max-width:62rem;margin-top:1.4rem}.pgfc-section>h2{color:var(--ff-forge-text);margin:0 0 .4rem;font-size:1.25rem;font-weight:800}.pgfc-how{max-width:66ch;margin-top:1.4rem}.pgfc-how h2{color:var(--ff-forge-text);margin:0 0 .5rem;font-size:1.25rem;font-weight:800}.pgfc-steps{flex-direction:column;gap:.4rem;margin:0 0 .6rem;padding-left:1.2rem;display:flex}.pgfc-steps li{line-height:1.5}.pgfc-gallery{grid-template-columns:repeat(auto-fill,minmax(15rem,1fr));gap:.9rem;display:grid}.pgfc-tpl-card,.pgfc-page-card{flex-direction:column;gap:.5rem;display:flex}.pgfc-tpl-preview{width:100%}.pgfc-tpl-name{color:var(--ff-forge-text);margin:0;font-size:1.05rem;font-weight:800}.pgfc-tpl-blurb,.pgfc-page-caption{margin:0;line-height:1.5}.pgfc-tpl-cta{align-self:flex-start;align-items:center;min-height:44px;margin-top:auto;display:inline-flex}.pgfc-del-btn{align-self:flex-start;min-height:44px}.pgfc-empty{max-width:40rem}.pgfc-empty-cta{min-height:44px;margin-top:.6rem;display:inline-flex}.pgfc-board{width:100%;max-width:30rem;margin:0 auto}.pgfc-grid{aspect-ratio:1;border:3px solid var(--ff-outline);border-radius:8px;grid-template-columns:repeat(8,1fr);width:100%;display:grid;overflow:hidden}.pgfc-sq{aspect-ratio:1;border:0;place-items:center;width:100%;margin:0;padding:0;display:grid;position:relative}.pgfc-sq-light{background:var(--gbt-sq-light)}.pgfc-sq-dark{background:var(--gbt-sq-dark)}button.pgfc-sq{cursor:pointer}button.pgfc-sq:hover{box-shadow:inset 0 0 0 3px color-mix(in oklab, var(--pc-select) 60%, transparent)}button.pgfc-sq:focus-visible{outline:3px solid var(--pc-select);outline-offset:-3px;z-index:1}.pgfc-pc{object-fit:contain;pointer-events:none;-webkit-user-select:none;user-select:none;width:92%;height:92%}.pgfc-study-head{max-width:66ch;margin:.4rem 0 .9rem}#pgfc-author-root{padding-bottom:var(--space-96);flex-direction:column;align-items:center;gap:.9rem;display:flex}.pgfc-loaded{text-align:center;border:2px solid var(--ff-outline);border-left:5px solid var(--pc-select);background:var(--ff-warm);border-radius:10px;width:100%;max-width:34rem;margin:0;padding:.5rem .75rem}.pgfc-palette{flex-wrap:wrap;justify-content:center;gap:.4rem;width:100%;max-width:34rem;display:flex}.pgfc-palette-btn{border:2px solid var(--ff-outline);background:var(--ff-warm);cursor:pointer;min-width:44px;min-height:44px;color:var(--ff-forge-text);border-radius:10px;place-items:center;padding:.2rem;font-weight:700;display:grid}.pgfc-palette-btn:hover{border-color:var(--pc-select)}.pgfc-palette-btn.pgfc-palette-on{border-color:var(--pc-select);box-shadow:0 0 0 3px color-mix(in oklab, var(--pc-select) 40%, transparent)}.pgfc-palette-img{object-fit:contain;width:34px;height:34px}.pgfc-erase{padding:0 .7rem}.pgfc-palette-hint{text-align:center;width:100%;max-width:34rem;margin:0}.pgfc-stage{width:100%;max-width:34rem}.pgfc-controls{flex-direction:column;gap:.6rem;width:100%;max-width:34rem;display:flex}.pgfc-turnrow{flex-wrap:wrap;justify-content:center;align-items:center;gap:.5rem;display:flex}.pgfc-ctl-label{color:var(--ff-forge-text);font-weight:700}.pgfc-turn-btn{min-height:44px}.pgfc-actions{flex-wrap:wrap;justify-content:center;gap:.5rem;display:flex}.pgfc-mini-btn{min-height:44px}.pgfc-text{flex-direction:column;gap:.35rem;width:100%;max-width:34rem;display:flex}.pgfc-field-label{color:var(--ff-forge-text);margin-top:.4rem;font-weight:700}.pgfc-input,.pgfc-textarea{box-sizing:border-box;border:2px solid var(--ff-outline);background:var(--ff-warm);width:100%;min-height:44px;color:var(--ff-forge-text);font:inherit;border-radius:10px;padding:.55rem .7rem;line-height:1.5}.pgfc-textarea{resize:vertical}.pgfc-input:focus-visible,.pgfc-textarea:focus-visible{outline:3px solid var(--pc-select);outline-offset:1px}.pgfc-status{border:2px solid var(--ff-outline);border-radius:10px;width:100%;max-width:34rem;margin:0;padding:.5rem .7rem;font-weight:700}.pgfc-status-ok{border-left:5px solid var(--pc-correct);color:var(--ff-forge-text)}.pgfc-status-bad{border-left:5px solid var(--pc-incorrect);color:var(--ff-forge-text)}.pgfc-save{flex-direction:column;align-items:center;gap:.4rem;width:100%;max-width:34rem;display:flex}.pgfc-save-btn{min-height:44px}.pgfc-save-msg{text-align:center;margin:0}