.corners-page{--c-panel:#fcfaf8;--c-ink:#173d40;--c-accent:#4a7d66;--c-line:#00000018;background:#f3f7f4;color:var(--c-ink)}.corners-page.dark{--c-panel:#1d2123;--c-ink:#fff;--c-line:#ffffff16;background:#141819}
.corners-page .header-inner,.corners-layout{max-width:1800px;width:100%;margin:auto}.corners-page .header-inner{padding:0 24px}.corners-layout{display:grid;grid-template-columns:302px minmax(0,1fr);gap:18px;padding:20px;min-width:0;flex:1}.corners-sidebar{display:flex;flex-direction:column;gap:13px;min-width:0;grid-column:auto;order:0}.corners-panel{padding:15px;background:var(--c-panel);border:1px solid var(--c-line);border-radius:20px}.corners-panel h2{font-size:18px;margin:0 0 12px;color:var(--c-ink)}.corners-panel p{font-size:13px;margin:0}.corners-options{display:flex;gap:7px}.corners-options button{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:7px;height:38px;border:1px solid var(--c-line);border-radius:10px;background:#ffffffa6;color:var(--c-ink);font-size:12px;font-weight:600}.dark .corners-options button{background:#ffffff0a}.corners-options button.selected,.dark .corners-options button.selected{background:var(--c-accent);color:#fff;border-color:#4c9960}.corners-primary{background:var(--c-accent);color:#fff;border:0;border-radius:12px;height:45px;padding:0 20px;font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;gap:9px}#new-game{width:100%}.corners-primary svg{width:18px;height:18px;fill:currentColor}.corners-page button{touch-action:manipulation}.corners-page button:focus-visible{outline:3px solid #62bd9b;outline-offset:2px}
.disc{display:inline-block;width:18px;height:18px;flex:none;border-radius:50%}.disc.red{background:#ff3d45}.disc.black{background:#1f1f1f;border:1px solid #999}.corners-turn{display:flex;gap:9px;align-items:center}.corners-turn>.disc{width:22px;height:22px}.corners-turn div{display:grid;gap:3px}.corners-panel small{color:var(--muted);font-size:11px}.corners-turn strong{font-size:13px}.corners-panel hr{border:0;border-top:1px solid var(--c-line);margin:14px 0}.corners-stats{display:flex;text-align:center}.corners-stats>div{flex:1;display:flex;flex-direction:column;gap:5px;align-items:center;min-width:0}.corners-stats strong{font-size:20px;font-variant-numeric:tabular-nums}.corners-stats .disc{width:21px;height:21px}.moves-icon{font-size:23px;line-height:21px}.corners-stats small{font-size:10px;white-space:nowrap}
.corners-surface{position:relative;display:grid;place-items:center;min-width:0;min-height:0;border:1px solid var(--c-line);border-radius:22px;background:var(--c-panel);padding:20px}.corners-board{position:relative;width:var(--board-size,100%);aspect-ratio:1;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));border-radius:9px;overflow:hidden;outline:3px solid #4a7d66cc;outline-offset:-3px;isolation:isolate}.corner-cell{position:relative;border:0;border-radius:0;padding:0;min-width:0;background:#f2f0db;aspect-ratio:1}.corner-cell.green{background:#7da88f}.corner-cell.target:after{content:"";position:absolute;inset:12%;border-radius:50%;background:#1fb64b3b}.corner-cell:focus-visible{outline-offset:-4px!important;z-index:3}.corner-piece{position:absolute;inset:8%;border-radius:50%;border:1.5px solid #ffffff59;box-shadow:0 3px 5px #0007;pointer-events:none;background:radial-gradient(circle at 32% 28%,#888 0%,#222 42%,#000 80%)}.corner-piece.red{background:radial-gradient(circle at 32% 28%,#ff383c 0%,#c91f21 45%,#7a0812 85%)}.corner-piece.selected{outline:3px solid #7beac5;outline-offset:2px}.corner-float{position:absolute;width:12.5%;height:12.5%;z-index:5;pointer-events:none}.corner-float .corner-piece{inset:8%}#thinking{position:absolute;top:9px;right:13px;font-size:12px;background:var(--c-panel);padding:3px 7px;border-radius:5px}#end-turn{position:absolute;bottom:20px;right:20px;border:1.5px solid #85baa1;background:#335749;box-shadow:0 2px 7px #0003;font-size:15px;height:39px}
.corners-page dialog{background:var(--c-panel);color:var(--c-ink);max-height:85dvh;overflow:auto}.corners-page dialog p{color:var(--muted);line-height:1.6}.corners-page dialog::backdrop{background:#10201baa}.dialog-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:24px}.dialog-actions button{border:0;border-radius:10px;padding:12px 18px}.dialog-actions #cancel{background:#8882;color:var(--c-ink)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
@media(min-width:1000px){.corners-page{display:grid;grid-template-rows:66px minmax(0,1fr);height:100dvh;min-height:700px}.corners-page header{height:66px}.corners-layout{height:100%;min-height:0}.corners-surface{height:100%}.corners-sidebar{min-height:0;overflow-y:auto}.corners-panel{flex-shrink:0}}
@media(min-width:1000px) and (max-height:780px){.corners-page{min-height:660px}.corners-layout{padding:14px 20px}.corners-sidebar{gap:9px}.corners-panel{padding:11px 14px}.corners-panel h2{margin-bottom:9px;font-size:16px}.corners-options button{height:34px}.corners-panel hr{margin:10px 0}}
@media(max-width:999px){.corners-layout{display:flex;flex-direction:column;padding:14px;gap:14px}.corners-sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.corners-surface{padding:18px;min-height:0}.corners-panel{padding:13px}.corners-panel h2{font-size:16px}.corners-sidebar>section:nth-of-type(4){grid-column:1/-1}.corners-sidebar>section:nth-of-type(4) .corners-turn{float:left;width:28%;height:70px}.corners-sidebar>section:nth-of-type(4) hr{display:none}.corners-stats{min-height:70px;align-items:center}.corners-options button{font-size:11px}.corners-page .header-inner{padding:0 18px}#end-turn{bottom:8px;right:8px}}
@media(max-width:430px){.corners-layout{padding:10px;gap:10px}.corners-panel{padding:11px;border-radius:15px}.corners-options{gap:5px}.corners-options button{gap:4px}.corners-options .disc{width:13px;height:13px}.corners-surface{padding:12px}.corner-piece{border-width:1px;box-shadow:0 2px 3px #0006}}

.corners-mobile-bar,#corners-mobile-thinking{display:none}
#corners-settings-dialog{max-width:420px;width:calc(100% - 28px);padding:20px}.mobile-settings-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}.mobile-settings-heading h2{margin:0;font-size:22px}.mobile-settings-heading button{border:0;background:none;color:inherit;font-size:28px;padding:4px 8px}.mobile-settings-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-top:1px solid var(--c-line);font-size:15px}.mobile-settings-row button,.mobile-settings-links button,.mobile-settings-links a{border:1px solid var(--c-line);background:var(--c-panel);color:inherit;border-radius:10px;padding:10px 16px;font-weight:600}.mobile-settings-row button.selected,#corners-mobile-sound[aria-pressed=true]{background:var(--c-accent);color:white}.mobile-theme-options{display:flex;gap:6px}.mobile-settings-links{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.mobile-settings-links a{text-align:center;text-decoration:none;font-size:13px}
@media(max-width:600px){
 .corners-page{height:var(--corners-viewport-height,100dvh);min-height:0;min-width:0;-webkit-text-size-adjust:100%;--c-panel:#f4f6f1;--c-line:#d7dfd9;background:#edf1ec}
 .corners-page.dark{--c-panel:#1d2224;--c-line:#303637;--muted:#989e9d;background:#141819}
 .corners-page>header{display:none}
 .corners-page .corners-mobile-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;flex:none;min-height:64px;padding:8px max(12px,env(safe-area-inset-right)) 8px max(12px,env(safe-area-inset-left));border-bottom:1px solid var(--c-line);background:var(--c-panel)}
 .dark .corners-mobile-bar{background:#191e20}
 .corners-mobile-bar h1{font-size:20px;line-height:1.2;font-weight:700;letter-spacing:0;margin:0}
 .corners-back{display:inline-flex;align-items:center;gap:5px;width:max-content;min-height:44px;color:inherit;text-decoration:none;font-size:17px}.corners-back svg{width:17px;height:24px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
 #corners-settings{justify-self:end;display:grid;place-items:center;width:44px;height:44px;border:0;padding:8px;background:none;color:inherit}#corners-settings svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
 .corners-page .corners-layout{display:flex;flex-direction:column;gap:8px;flex:1;min-height:0;width:100%;margin:0;padding:12px max(11px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(11px,env(safe-area-inset-left))}
 .corners-sidebar{display:contents}
 .corners-sidebar>.corners-panel:nth-child(1){order:1}.corners-sidebar>.corners-panel:nth-child(2){order:2}
 .corners-sidebar>.corners-panel:nth-child(-n+2){display:grid;grid-template-columns:56px minmax(0,1fr);align-items:center;gap:2px;flex:none;min-width:0;min-height:48px;padding:4px 8px 4px 9px;border-radius:16px;background:var(--c-panel);border:1px solid var(--c-line)}
 .corners-sidebar>.corners-panel:nth-child(-n+2) h2{font-size:13px;line-height:1.3;letter-spacing:0;margin:0;font-weight:600}
 .corners-page .corners-options{gap:5px;min-width:0}.corners-page .corners-options button{min-width:0;height:38px;padding:6px 2px;border-radius:11px;border:1px solid var(--c-line);background:transparent;font-size:13px;line-height:1.2;font-weight:600;white-space:nowrap;gap:6px}
 .corners-page .corners-options button.selected{background:var(--c-accent);border-color:#729f89;color:#fff;box-shadow:inset 0 0 0 1px #ffffff10}
 .corners-page .corners-options .disc{width:16px;height:16px;box-shadow:inset 0 1px 2px #fff4}.corners-page .corners-options .disc.red{background:linear-gradient(#ff3439,#ae0010)}.corners-page .corners-options .disc.black{background:linear-gradient(#555,#000);border-color:#8888}
 .corners-sidebar>.corners-panel:nth-child(3){display:contents}.corners-sidebar>.corners-panel:nth-child(3)>h2{display:none}
 .corners-page #new-game{order:3;flex:none;width:100%;height:48px;min-height:48px;margin:0;border:0;border-radius:16px;background:var(--c-accent);color:#fff;font-size:17px;font-weight:700;gap:8px;padding:0 12px}
 .corners-page .corners-surface{order:4;flex:1;min-height:0;height:auto;display:grid;grid-template-rows:minmax(0,1fr) auto;place-items:center;gap:0;width:100%;padding:7px;margin:clamp(8px,2dvh,24px) 0;border-radius:26px;background:var(--c-panel);border:1px solid var(--c-line)}
 .corners-page .corners-board{max-width:100%;border-radius:10px;outline:3px solid #6b9f89;outline-offset:-3px}
 .corners-page .corner-piece{inset:8%;border:1px solid #ffffff70;box-shadow:0 2px 4px #0006}.corners-page .corner-float .corner-piece{inset:8%}
 .corners-page #end-turn{position:static;justify-self:end;width:auto;min-height:32px;height:32px;font-size:13px;padding:0 14px;border-radius:9px;margin:6px 0 0;box-shadow:none}
 .corners-page #thinking{display:none}
 .corners-sidebar>.corners-panel:nth-child(4){order:5;flex:none;grid-column:auto;width:100%;padding:8px 10px;border-radius:18px;background:var(--c-panel);border:1px solid var(--c-line)}
 .corners-sidebar>.corners-panel:nth-child(4)>h2{display:none}
 .corners-sidebar>.corners-panel:nth-child(4) .corners-turn{float:none;display:flex;align-items:center;gap:8px;width:100%;height:24px}
 .corners-turn>.disc{width:20px;height:20px}.corners-turn div{display:flex;min-width:0}.corners-turn small{font-size:12px;line-height:1.3}.corners-turn #turn{display:none}
 .corners-page #corners-mobile-thinking:not([hidden]){display:block;font-size:12px;line-height:1.3;color:var(--muted)}.corners-turn:has(#corners-mobile-thinking:not([hidden])) small{display:none}
 .corners-sidebar>.corners-panel:nth-child(4) hr{display:block;border:0;border-top:1px solid var(--c-line);margin:7px 0 8px}
 .corners-page .corners-stats{display:flex;align-items:center;min-height:67px}.corners-stats>div{gap:5px}.corners-stats>div+div{border-left:1px solid var(--c-line)}
 .corners-page .corners-stats .disc{width:23px;height:23px}.corners-stats .disc.black{background:transparent;border:1.2px solid #929693}
 .corners-page .corners-stats strong{font-size:20px;line-height:1.2}.corners-page .corners-stats small{font-size:10px;line-height:1.25;white-space:nowrap}.corners-page .moves-icon{font-size:25px;line-height:23px}
 .corners-page #result{order:6;flex:none;padding:12px;border-radius:16px;grid-column:auto}
 .corners-page .dialog-actions{gap:8px}.corners-page .dialog-actions button{padding:10px 13px;min-height:44px;font-size:14px}
}
@media(max-width:600px) and (max-height:760px){
 .corners-page .corners-mobile-bar{min-height:52px;padding-top:4px;padding-bottom:4px}
 .corners-page .corners-layout{gap:6px;padding-top:8px;padding-bottom:max(12px,env(safe-area-inset-bottom))}
 .corners-sidebar>.corners-panel:nth-child(-n+2){min-height:40px;padding-top:3px;padding-bottom:3px}.corners-page .corners-options button{height:32px}
 .corners-page #new-game{height:40px;min-height:40px}
 .corners-page .corners-surface{margin:8px 0;padding:6px;border-radius:22px}
 .corners-sidebar>.corners-panel:nth-child(4){padding:6px 9px}.corners-sidebar>.corners-panel:nth-child(4) .corners-turn{height:21px}.corners-sidebar>.corners-panel:nth-child(4) hr{margin:5px 0 6px}
 .corners-page .corners-stats{min-height:55px}.corners-stats>div{gap:3px}.corners-page .corners-stats .disc{width:19px;height:19px}.corners-page .corners-stats strong{font-size:18px}.corners-page .moves-icon{font-size:21px;line-height:19px}
}