.kg-empty-slot{position:relative;aspect-ratio:100 / 140;border:2px dashed rgba(255,255,255,.35);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.8rem;color:#ffffff59;-webkit-user-select:none;user-select:none;cursor:pointer;transition:background .12s}.kg-empty-slot:hover{background:#ffffff0f}.kg-empty-slot.kg-foundation--spades:before,.kg-empty-slot.kg-foundation--clubs:before{color:#00000059}.kg-board.kg-solved{animation:kg-win-flash .6s ease-out}@keyframes kg-win-flash{0%{box-shadow:0 0 #2e7d3280}60%{box-shadow:0 0 0 12px #2e7d324d}to{box-shadow:0 0 0 4px #2e7d3299}}.kg-board{display:grid;grid-template-columns:repeat(7,1fr);grid-template-rows:auto auto;gap:.55rem .4rem;padding:.6rem;background:linear-gradient(180deg,#15803d,#14532d);border-radius:10px;width:100%;max-width:760px;margin:0 auto;box-shadow:0 4px 16px #0000004d;-webkit-user-select:none;user-select:none;--kg-card-w: 90px;--kg-tableau-min-h: calc(var(--kg-card-w) * 1.4 * 4.4)}.kg-slot{position:relative;width:100%;height:calc(var(--kg-card-w) * 1.4)}.kg-slot--gap{background:transparent;pointer-events:none}.kg-slot--stock,.kg-slot--waste,.kg-slot--foundation{border:2px dashed rgba(255,255,255,.25);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.6rem;color:#ffffff52;transition:background .12s}.kg-slot--stock:hover,.kg-slot--waste:hover,.kg-slot--foundation:hover{background:#ffffff0d}.kg-slot.kg-slot--filled{border-color:transparent}.kg-slot.kg-slot--filled .kg-card{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.kg-slot--stock.kg-stock--recycle:before{content:"↻";font-size:2rem;color:#ffffff73}.kg-slot--foundation[data-suit=spades].kg-slot:not(.kg-slot--filled):before{content:"♠"}.kg-slot--foundation[data-suit=hearts].kg-slot:not(.kg-slot--filled):before{content:"♥";color:#dc646466}.kg-slot--foundation[data-suit=diamonds].kg-slot:not(.kg-slot--filled):before{content:"♦";color:#dc646466}.kg-slot--foundation[data-suit=clubs].kg-slot:not(.kg-slot--filled):before{content:"♣"}.kg-tableau-col{position:relative;width:100%;min-height:var(--kg-tableau-min-h);border:2px dashed rgba(255,255,255,.2);border-radius:8px}.kg-tableau-col.kg-tableau-col--filled{height:var(--kg-col-height, auto);min-height:var(--kg-tableau-min-h);border-color:transparent}.kg-tableau-col .kg-card{position:absolute;width:100%;left:0}.kg-slot--stock .kg-card,.kg-slot--waste .kg-card,.kg-slot--foundation .kg-card{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.kg-slot--waste.kg-waste--fan .kg-card{width:calc(100% - 18px)}.kg-slot--waste.kg-waste--fan .kg-card[data-fan-pos="0"]{top:0;right:18px;bottom:0;left:0}.kg-slot--waste.kg-waste--fan .kg-card[data-fan-pos="1"]{top:0;right:9px;bottom:0;left:9px}.kg-slot--waste.kg-waste--fan .kg-card[data-fan-pos="2"]{top:0;right:0;bottom:0;left:18px}.kg-slot.kg-drop-target,.kg-tableau-col.kg-drop-target{background:#ffd7002e;border-color:#ffd700b3;box-shadow:0 0 0 2px #ffd70080}.kg-card.kg-card--dragging{opacity:.4}.kg-example{margin-top:1rem;padding-top:.85rem;border-top:1px solid rgba(0,0,0,.08)}.kg-slide{flex:0 0 100%;scroll-snap-align:start;display:flex;flex-direction:column;align-items:center;gap:.55rem;padding:.25rem .5rem;box-sizing:border-box}.kg-example-grid{display:grid;grid-template-columns:repeat(4,38px);grid-template-rows:52px;gap:4px;background:#166534;padding:6px;border-radius:6px;width:max-content}.kg-ex-card{display:flex;align-items:center;justify-content:center;background:#fff;color:#1f2937;border-radius:4px;font-size:13px;font-weight:700;border:1.5px solid #94a3b8;-webkit-user-select:none;user-select:none}.kg-ex-card.kg-ex-red{color:#c0392b}.kg-ex-card.kg-ex-black{color:#1f2937}.kg-ex-card.kg-ex-back{background:#1e3a8a;color:#60a5fa;font-size:18px;border-color:#0f172a}.kg-ex-card.kg-ex-back:before{content:"✦"}.kg-ex-card.kg-ex-foundation{background:#fff;font-size:22px;color:#475569}.kg-ex-card.kg-ex-foundation:nth-child(2),.kg-ex-card.kg-ex-foundation:nth-child(3){color:#c0392b}.kg-ex-card.kg-ex-empty{background:#ffffff1a;border:2px dashed rgba(255,255,255,.4);color:#ffffff80}.kg-ex-card.kg-ex-arrow{background:transparent;border:none;color:#fff;font-size:22px}.kg-example-caption{font-size:.78rem;color:var(--color-text-muted);margin:0;max-width:300px;text-align:center;min-height:2.4em}.kg-slide-nav{position:absolute;top:32px;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:#0000008c;color:#fff;border:none;cursor:pointer;font-size:20px;line-height:1;padding:0 0 2px;display:flex;align-items:center;justify-content:center;z-index:2}.kg-slide-dots{display:flex;justify-content:center;gap:.4rem;margin-top:.45rem}.kg-hint-panel{max-width:480px;margin:.5rem auto 0;background:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:.75rem 2rem .75rem 1rem;font-size:.85rem;line-height:1.45;color:var(--color-text);position:relative;display:none}.kg-hint-panel.active{display:block;animation:kg-hint-panel-in .2s ease-out}.kg-hint-title{font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:#e65100;margin-bottom:.25rem}.kg-hint-body{color:var(--color-text)}.kg-hint-close{position:absolute;top:.25rem;right:.4rem;background:none;border:none;font-size:1.25rem;line-height:1;color:var(--color-text-muted);cursor:pointer;padding:.25rem .4rem;border-radius:4px}.kg-hint-close:hover{background:#0000000f;color:var(--color-text)}@keyframes kg-hint-panel-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){.kg-hint-panel.active,.kg-board.kg-solved{animation:none}}