:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#fdfbf3;background:#171e1a;font-synthesis:none;--green:#193f35;--gold:#f7ce6f;--paper:#fffef9;--n:5;--board-width:341.6px;--panel-width:164px}
*{box-sizing:border-box}
body{margin:0}
button,select,a{-webkit-tap-highlight-color:transparent}
button,select{font:inherit}
button{cursor:pointer;touch-action:manipulation;color:inherit}
button:disabled{cursor:default}
button:focus-visible,select:focus-visible{outline:3px solid #fff1a5;outline-offset:3px}
svg{display:block;width:24px;height:24px}
/* The panel is a sibling of the photo, never an overlay. */
.game-shell{display:flex;align-items:center;justify-content:center;gap:16px;width:min(100%,720px);min-height:100svh;margin:auto}
.portrait-scene{position:relative;isolation:isolate;flex:1;min-width:0;max-width:540px;height:100svh;min-height:560px;box-shadow:0 0 70px #0005}
.portrait-background{position:absolute;z-index:-1;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 50%;pointer-events:none;user-select:none}
#app{position:absolute;inset:0}
/* 70% of the previous 488px board. Center the complete HUD+board at 58%. */
.gameplay{position:absolute;left:50%;top:58%;transform:translate(-50%,-50%);width:var(--board-width);max-width:calc(100% - 20px);margin:0}
/* Symmetric tracks anchor the current stone at the exact panel center. */
.play-hud{display:grid;grid-template-columns:minmax(0,1fr) 24px 48px 24px minmax(0,1fr);align-items:center;column-gap:8px;padding:20px 11px;margin-bottom:12px;border:1px solid #fff5;border-radius:13px;background:#152b2399;box-shadow:0 3px 14px #0002}
.reserve{grid-column:1;position:relative;display:grid;place-items:center;height:48px;min-width:0;text-align:center}
.moves-left{position:absolute;left:0;right:0;bottom:calc(50% + 18px);font-size:20px;font-weight:650;line-height:1;font-variant-numeric:tabular-nums}
.next-pieces{width:100%;display:flex;align-items:center;justify-content:flex-end;gap:5px;min-height:30px}
.next-pieces .stone{flex:0 0 auto;width:calc((100% - 10px) / 3);max-width:28px;height:auto;border-radius:6px}
.queue-arrow{grid-column:2;display:grid;place-items:center;min-width:0;color:#f7e6b6}
.queue-arrow svg{width:14px;height:14px}
.current-piece{grid-column:3;display:grid;place-items:center;min-width:0}
.current-piece .stone{width:48px;height:48px;border-radius:10px;outline:1px solid #f8e5a7;outline-offset:2px}
.goals-left{grid-column:5;display:flex;align-items:baseline;justify-content:center;gap:3px;white-space:nowrap;font-variant-numeric:tabular-nums;color:#ffeaf2}
.goals-left strong{font-size:30px;line-height:1;font-weight:650}
.goals-left span{font-size:17px;line-height:1;color:#efb3c8}
.queue-end{font-size:25px;line-height:30px;color:#d9e1d2}
.queue-check{font-size:32px;line-height:48px}
.control-panel{flex:0 0 var(--panel-width);width:var(--panel-width);padding:14px 12px;border:1px solid #ffffff24;border-radius:16px;background:#24332b;max-height:calc(100svh - 24px);overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin}
.control-stack{display:grid;gap:14px}
.stage-control{width:100%;display:grid;grid-template-columns:25px 1fr;align-items:center;justify-items:start;gap:7px 10px;border:1px solid #fff4;background:#162a22;border-radius:10px;padding:12px 10px;min-height:76px;text-align:left}
.stage-control svg{grid-row:span 2;width:22px;height:22px}
.stage-label{font-size:12px;overflow-wrap:anywhere}
.stage-number{white-space:nowrap;line-height:1}
.stage-number strong{font-size:25px;font-variant-numeric:tabular-nums}
.stage-number small{font-size:11px;color:#c4cfc4}
.panel-actions{display:grid;gap:9px}
.action{min-height:53px;display:flex;align-items:center;justify-content:flex-start;gap:10px;border:1px solid #fff3;border-radius:10px;padding:10px;background:#193a2f;color:#fffcf0;font-size:12px;text-align:left;line-height:1.4}
.action svg{flex-shrink:0;width:22px;height:22px}
.action span{word-break:keep-all;overflow-wrap:anywhere}
.hint-action{background:#e2bc76;color:#3c331c;border-color:#ffe8af}
.action:disabled{opacity:.45}
.action:hover:not(:disabled){filter:brightness(1.12)}
.status-note{font-size:12px;line-height:1.6;color:#dce5d7;word-break:keep-all;overflow-wrap:anywhere;padding:12px 1px 0;border-top:1px solid #ffffff24}
.status-note.success{color:#f7d78d}
.icon-button{border:1px solid #fff5;border-radius:12px;min-height:44px;width:44px;display:grid;place-items:center}
.sr-only{position:absolute;top:0;left:0;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.loading{margin:30vh auto;text-align:center;font-size:22px}
.eyebrow{font-size:11px;font-weight:650;letter-spacing:1px;color:#75866c}
.settings-list{display:grid;gap:13px}
.settings-list label{display:flex;align-items:center;justify-content:space-between;font-size:15px;gap:12px}
.settings-list select{font:inherit;padding:12px 8px;color:#193f35;background:#f4f5eb;border:1px solid #cdd8c2;border-radius:9px;max-width:160px}
.settings-list .secondary{justify-content:flex-start}
.settings-list .secondary svg{width:22px;height:22px}
.board-wrap{padding:0;background:transparent;border-radius:0;box-shadow:none;backdrop-filter:none}.board{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:0;border-left:1.5px solid #fffdf0d9;border-top:1.5px solid #fffdf0d9;background:transparent;box-shadow:0 0 0 1px #213b254d}.cell{position:relative;display:grid;place-items:center;aspect-ratio:1;min-width:0;padding:8px;border:0;border-right:1.5px solid #fffdf0d9;border-bottom:1.5px solid #fffdf0d9;border-radius:0;background:transparent;box-shadow:inset -1px -1px 0 #17382140;backdrop-filter:none}.cell:disabled{opacity:1}.cell:not(:disabled):hover{box-shadow:inset 0 0 0 2px #ffffffe6;background:transparent}.stone{display:inline-grid;place-items:center;width:100%;aspect-ratio:1;border-radius:10px;box-shadow:0 3px 0 #172f397a,0 3px 8px #06110d40,inset 0 1px 0 #ffffff6b;color:white}.stone svg{width:85%;height:85%;fill:currentColor}.color-1{background:#398d7d;color:#effff7}.color-2{background:#e5b965;color:#654216}.color-3{background:#c77765;color:#fff4e5}.color-4{background:#668dab;color:#f4fbff}.color-5{background:#9c85b3;color:#fff5fc}.rock-mark{display:grid;place-items:center;width:100%;height:100%;background:#344438f2;box-shadow:inset 0 0 0 1px #8d9e8c;border-radius:8px;color:#bac9b5;font-size:33px}.layer-mark{position:absolute;right:5px;top:5px;border-radius:3px;background:#3c3c27;color:#ffdf88;font-size:11px;padding:0 3px;z-index:2}.cell.hinted{z-index:2}.clearing:before{content:'✦';position:absolute;z-index:3;color:#fff1b5;font-size:38px;text-shadow:0 0 10px #4d351f;animation:burst .35s ease-out forwards;pointer-events:none}
dialog{width:min(480px,calc(100vw - 32px));border:1px solid #e3e4d7;border-radius:22px;background:var(--paper);color:var(--green);padding:36px 28px 28px;box-shadow:0 30px 120px #081e3270;max-height:90dvh}dialog::backdrop{background:#0d2b25b3;backdrop-filter:blur(5px)}.dialog-close{position:absolute;top:10px;right:10px;color:#7e8a79}dialog h2{font-size:25px;font-weight:600;letter-spacing:-.8px;margin:14px 0 18px;padding-right:18px;line-height:1.45}dialog h3{font-size:14px;font-weight:600;margin:22px 0 12px}dialog h3 small{color:#a89878;margin-right:8px}.help-demo{display:flex;align-items:center;justify-content:center;gap:10px;background:#e7ecdf;border-radius:12px;padding:20px;margin-bottom:24px}.help-demo .stone{width:49px}.help-demo>span:not(.stone){font-size:28px;color:#a3844c}.help-steps{list-style:none;counter-reset:steps;padding:0;margin:0}.help-steps li{counter-increment:steps;position:relative;padding:0 0 18px 35px;font-size:14px;line-height:1.8}.help-steps li:before{content:counter(steps);position:absolute;left:0;top:2px;background:#e7ecdf;font-size:12px;width:23px;height:23px;border-radius:50%;text-align:center;line-height:23px}.dialog-note{font-size:13px;line-height:1.8;color:#7b8573}.dialog-actions{display:flex;flex-direction:column;gap:9px;margin-top:22px}.primary,.secondary{min-height:49px;border-radius:10px;border:0;padding:12px 20px;font-weight:600;font-size:14px;display:flex;align-items:center;justify-content:center;gap:15px}.primary{background:var(--green);color:#fffef2}.secondary{background:#edf0e5;color:#64735c}.stage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:9px}.stage-tile{aspect-ratio:1;background:#f0f1e8;border:1px solid #dce1d2;border-radius:11px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px}.stage-tile strong{font-family:Georgia,serif;font-weight:500;font-size:26px}.stage-tile>span{font-size:10px;color:#7e8b75}.stage-tile.complete{background:#e6eddb}.stage-tile.selected{border:2px solid #9a7b42}.full-queue{display:grid;grid-template-columns:repeat(5,1fr);gap:16px 10px;margin:25px 0 5px}.queue-item{display:flex;flex-direction:column;align-items:center;gap:7px}.queue-item .stone{width:46px}.queue-item>span{font-size:11px;color:#8d957f}.queue-item small{font-size:9px;height:14px}.queue-item.used{opacity:.3}.queue-item.now .stone{outline:2px solid #b89b63;outline-offset:4px}.result-dialog{text-align:center;padding-top:40px}.result-emblem{width:68px;height:68px;border:1px solid #b6c6a8;border-radius:50%;display:grid;place-items:center;margin:0 auto 23px;background:#e5ecdc}.result-emblem svg{width:33px;height:33px}.result-emblem.muted{background:#f0ebde;color:#9c8051;border-color:#d6c9ad}.result-dialog h2{padding-right:0;margin-top:12px}.result-body{font-size:14px;color:#697d62;line-height:1.8}.result-stats{display:flex;justify-content:center;gap:55px;border-top:1px solid #e0e4d5;border-bottom:1px solid #e0e4d5;padding:20px 0;margin-top:24px}.result-stats span{display:block;font-size:11px;color:#7d8c73}.result-stats strong{display:block;font-family:Georgia,serif;font-size:32px;font-weight:400;margin-top:6px}.assist-label{font-size:11px;color:#8a967c}@keyframes burst{to{opacity:0;transform:scale(1.9)}}

.dialog-close{background:transparent;border:0;box-shadow:none}.help-demo .stone{color:inherit}.help-demo .color-1{color:#effff7}.primary:disabled{opacity:.5}

/* Cells remain transparent; all controls other than cell taps are in the rail. */
.cell{padding:6px}

.stone{border-radius:8px}
@media(max-width:720px) and (min-width:541px){
 :root{--panel-width:132px}
 .game-shell{gap:12px}
 .control-panel{padding:12px 9px}
 .action{font-size:11px;gap:7px;padding:9px 7px}
 .stage-control{gap:7px;padding:10px 7px}
}
@media(max-width:540px){
 /* Previous mobile board = viewport minus 32px; retain exactly 70% of it. */
 :root{--board-width:calc((100vw - 32px) * .7);--panel-width:76px}
 .game-shell{gap:4px}
 .portrait-scene{min-height:520px}
 .control-panel{padding:10px 6px;border-radius:12px 0 0 12px;max-height:calc(100svh - 16px)}
 .control-stack{gap:10px}
 .stage-control{grid-template-columns:1fr;justify-items:center;text-align:center;padding:9px 2px;gap:5px;min-height:89px}
 .stage-control svg{grid-row:auto;width:20px;height:20px}
 .stage-label{font-size:10px}
 .stage-number strong{font-size:23px}
 .stage-number small{font-size:9px}
 .panel-actions{gap:7px}
 .action{min-height:60px;flex-direction:column;justify-content:center;gap:5px;padding:8px 2px;font-size:11px;text-align:center}
 .action svg{width:21px;height:21px}
 .status-note{font-size:10px;line-height:1.5;padding-top:10px}
 .play-hud{grid-template-columns:minmax(0,1fr) 16px 36px 16px minmax(0,1fr);column-gap:6px;padding:18px 7px;margin-bottom:10px;border-radius:11px}
 .reserve{height:36px}
 .moves-left{bottom:calc(50% + 15px);font-size:17px}
 .next-pieces{gap:3px;min-height:23px}
 .next-pieces .stone{width:calc((100% - 6px) / 3);max-width:23px;border-radius:5px}
 .current-piece .stone{width:36px;height:36px;border-radius:7px}
 .queue-arrow svg{width:12px;height:12px}
 .goals-left{gap:2px}
 .goals-left strong{font-size:24px}
 .goals-left span{font-size:14px}
 .queue-end{font-size:21px;line-height:23px}
 .queue-check{line-height:36px}

 .cell{padding:4px}

 .stone{border-radius:6px}
 .layer-mark{right:3px;top:3px;font-size:9px;padding:0 2px}
 .rock-mark{font-size:25px;border-radius:5px}

}
@media(max-width:359px){
 /* Previous narrow-mobile board = viewport minus 24px. */
 :root{--board-width:calc((100vw - 24px) * .7);--panel-width:68px}
 .control-panel{padding:8px 4px}
 .play-hud{grid-template-columns:minmax(0,1fr) 14px 34px 14px minmax(0,1fr);column-gap:5px;padding:18px 6px}
 .reserve{height:34px}
 .moves-left{bottom:calc(50% + 13px);font-size:16px}
 .goals-left strong{font-size:22px}
 .goals-left span{font-size:13px}
 .current-piece .stone{width:34px;height:34px}
 .next-pieces{gap:2px}
 .next-pieces .stone{width:calc((100% - 4px) / 3)}
 .queue-arrow svg{width:10px;height:10px}

 .cell{padding:3px}

 .stone{border-radius:5px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}

.cell.goal:after{content:'';position:absolute;inset:0;border:0;border-radius:0;background:rgba(183,67,225,.6);box-shadow:none;z-index:0;pointer-events:none}
.cell.double:after{background:rgba(143,37,193,.78)}

/* Opaque stone colors stay readable above the full-cell target fill. */
.cell>.stone{position:relative;z-index:1}
.help-demo .demo-goal{color:#ad41d8}

.hint-pointer{position:absolute;inset:2px;display:grid;place-items:center;pointer-events:none;z-index:4}
.hint-pointer svg{width:76%;height:76%;overflow:visible}


.board-goal{width:fit-content;max-width:100%;margin:10px auto 0;padding:7px 11px;border-radius:8px;background:#152b23dc;color:#fffcf4;font-size:12px;line-height:1.5;text-align:center;word-break:keep-all;overflow-wrap:anywhere}
@media(max-width:540px){.board-goal{margin-top:8px;padding:6px 9px;font-size:11px}}

#items[aria-pressed="true"]{background:#e4c47a;color:#253328}
.cell.item-selected,.cell.item-selected:not(:disabled):hover{outline:3px solid #fff0a4;outline-offset:-4px;z-index:2}
.cell.item-match,.cell.item-match:not(:disabled):hover{outline:3px dashed #aefce9;outline-offset:-4px;z-index:2}
.item-list{display:grid;gap:10px}
.item-card{display:grid;gap:5px;text-align:left;padding:12px 14px;border:1px solid #d5ddcb;border-radius:10px;background:#f0f3e8;color:var(--green)}
.item-card:disabled{opacity:.58}
.item-card:not(:disabled):hover{background:#e2ead7}
.item-title{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:15px;font-weight:700}
.item-title small{font-size:13px}
.item-description{font-size:13px;line-height:1.55}
.item-preview{display:flex;gap:5px;margin-top:3px}
.item-preview .stone{width:24px;border-radius:5px}