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rgba(240,201,106,.22)}.subtitle{margin:0;color:var(--cs-parchment-light);font-family:var(--cs-title-font);font-size:clamp(1.2rem,2.5vw,2rem);letter-spacing:.18em;text-transform:uppercase}.hero-copy{max-width:720px;margin:0;color:#ead9ade0;font-size:clamp(1rem,1.8vw,1.18rem);line-height:1.7}.hero-actions{margin-top:.35rem}.hero-board-preview{position:relative;min-height:clamp(340px,43vw,570px);display:grid;place-items:center;perspective:1300px;isolation:isolate}.hero-board-preview:before{content:"";position:absolute;top:8%;right:-8%;bottom:0;left:-8%;z-index:-1;border-radius:50%;background:radial-gradient(circle at 42% 8%,rgba(240,201,106,.22),transparent 18%),radial-gradient(ellipse at 50% 82%,rgba(0,0,0,.72),transparent 62%);filter:blur(6px)}.hero-mini-board{position:relative;display:grid;grid-template-columns:repeat(8,1fr);width:min(100%,560px);aspect-ratio:1;padding:clamp(.7rem,1.5vw,1rem);transform:rotateX(54deg) rotate(-4deg);transform-style:preserve-3d;border:1px solid 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var(--cs-danger),inset 0 0 34px var(--cs-check)}.senterej-square.is-disabled{cursor:not-allowed;opacity:.74}.square-label{position:absolute;top:5px;left:6px;z-index:5;transform:translateZ(18px);color:#ead9adad;font-size:clamp(.52rem,1vw,.7rem);font-family:var(--cs-ui-font)}.senterej-piece{position:relative;z-index:6;width:82%;height:82%;overflow:visible;pointer-events:none;transform:translateY(calc(-1 * var(--piece-rise))) translateZ(48px) rotateX(calc(-1 * var(--board-tilt))) scale(1.08);transform-origin:50% 82%;filter:drop-shadow(0 16px 8px rgba(0,0,0,.62)) drop-shadow(0 2px 0 rgba(255,240,168,.18));transition:transform .22s ease,filter .22s ease;animation:pieceSettle .34s cubic-bezier(.2,.85,.2,1)}.senterej-piece.is-selected,.senterej-square:hover:not(.is-disabled) .senterej-piece{transform:translateY(calc(-1 * var(--piece-rise) - 4px)) translateZ(62px) rotateX(calc(-1 * var(--board-tilt))) scale(1.13);filter:drop-shadow(0 0 12px rgba(240,201,106,.72)) drop-shadow(0 18px 9px rgba(0,0,0,.66))}.senterej-square.is-last-move .senterej-piece{animation:moveArrive .46s cubic-bezier(.2,.85,.2,1)}.senterej-piece--captured{width:34px;height:34px;vertical-align:middle;transform:none;animation:none}.senterej-piece__metal{fill:url(#pieceGold);stroke:#3b2508;stroke-width:2.2;stroke-linejoin:round;paint-order:stroke fill}.senterej-piece--black .senterej-piece__metal{fill:url(#pieceDark);stroke:#f0c96a;stroke-width:1.6}.senterej-piece__base{fill:url(#pieceBaseGold);stroke:#3b2508;stroke-width:2.1;stroke-linejoin:round;paint-order:stroke fill}.senterej-piece--black .senterej-piece__base{fill:url(#pieceBaseDark);stroke:#f0c96a;stroke-width:1.45}.senterej-piece__line{fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.senterej-piece__base-line{fill:none;stroke:currentColor;stroke-width:1.45;stroke-linecap:round;stroke-linejoin:round;opacity:.82}.senterej-piece--white{color:#5b390a}.senterej-piece--black{color:#f0c96a}.piece-legend{display:grid;gap:.75rem}.piece-legend__item{display:grid;grid-template-columns:42px 1fr;gap:.7rem;align-items:center}.piece-legend__item .senterej-piece{transform:none;animation:none}.piece-legend__item strong{color:var(--cs-ink)}.ancient-panel--dark .piece-legend__item strong{color:var(--cs-bright-gold)}.senterej-board-stage[data-view="2d"]{--board-tilt: 0deg;--piece-rise: 0px;min-height:auto;perspective:none}.senterej-board-stage[data-view="2d"]:before,.senterej-board-stage[data-view="2d"]:after,.senterej-board-shell[data-view="2d"]:after{display:none}.senterej-board-shell[data-view="2d"]{transform:none;transform-style:flat;box-shadow:0 24px 70px #00000080,inset 0 0 0 4px #c79a3a26}.senterej-board-shell[data-view="2d"]:before{transform:none}.senterej-board-shell[data-view="2d"] .senterej-board{overflow:hidden;transform-style:flat}.senterej-board-shell[data-view="2d"] .senterej-board:before{opacity:.35;transform:none}.senterej-board-shell[data-view="2d"] .senterej-board:after{transform:none}.senterej-board-shell[data-view="2d"] .senterej-square:after,.senterej-board-shell[data-view="2d"] .square-label{transform:none}.senterej-board-shell[data-view="2d"] .senterej-piece,.senterej-board-shell[data-view="2d"] .senterej-piece.is-selected,.senterej-board-shell[data-view="2d"] .senterej-square:hover:not(.is-disabled) .senterej-piece{width:76%;height:76%;transform:none}@keyframes checkPulse{0%,to{box-shadow:inset 0 0 0 3px var(--cs-danger),inset 0 0 18px #b3372b73}50%{box-shadow:inset 0 0 0 3px var(--cs-bright-gold),inset 0 0 38px #b3372be6}}@keyframes pieceSettle{0%{opacity:.86;transform:translateY(calc(-1 * var(--piece-rise) - 10px)) translateZ(78px) rotateX(calc(-1 * var(--board-tilt))) scale(1.16)}}@keyframes moveArrive{0%{transform:translateY(calc(-1 * var(--piece-rise) - 26px)) translateZ(96px) rotateX(calc(-1 * var(--board-tilt))) scale(1.18)}70%{transform:translateY(calc(-1 * var(--piece-rise) + 2px)) translateZ(44px) rotateX(calc(-1 * var(--board-tilt))) scale(1.04)}to{transform:translateY(calc(-1 * var(--piece-rise))) translateZ(48px) rotateX(calc(-1 * var(--board-tilt))) scale(1.08)}}@media (prefers-reduced-motion: reduce){.senterej-piece,.senterej-square.is-last-move .senterej-piece,.senterej-square.is-check{animation:none}}@media (max-width: 760px){.senterej-board-stage{--board-tilt: 34deg;--piece-rise: 7px;min-height:min(118vw,560px);perspective:1150px;perspective-origin:50% 18%}.senterej-board-shell{transform:rotateX(var(--board-tilt)) translateY(-.85rem);width:min(100%,560px);box-shadow:0 30px 58px #0000009e,0 7px #271006,0 15px #120704,inset 0 0 0 4px #c79a3a2b}.senterej-board-shell:after{bottom:-15px;height:22px}.senterej-piece,.senterej-piece.is-selected,.senterej-square:hover:not(.is-disabled) .senterej-piece{width:84%;height:84%;transform:translateY(-7px) translateZ(34px) rotateX(calc(-1 * var(--board-tilt))) scale(1.04)}}@media (max-width: 560px){.senterej-board-shell{padding:.55rem}.square-label{display:none}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.compact-grid{grid-template-columns:repeat(2,minmax(120px,1fr))}.modes-grid{margin-bottom:1rem}.ancient-panel p,.ancient-panel li{line-height:1.58}.ancient-panel--dark p,.ancient-panel--dark li{color:#ead9ade0}.piece-card-grid .ancient-panel{text-align:center}.piece-card-grid .senterej-piece--captured{width:74px;height:74px}.brand-lockup .subtitle{display:block;color:#ead9adcc;font-size:.9rem}.actions-row select{max-width:240px}input[type=checkbox]{width:auto;min-height:auto;justify-self:start;accent-color:var(--cs-gold)}@media (max-width: 700px){.compact-grid,.button-grid{grid-template-columns:1fr}.hero-panel h1{width:100%;font-size:clamp(2.65rem,15vw,3.6rem);letter-spacing:.04em;overflow-wrap:anywhere}.subtitle{font-size:clamp(1rem,5.6vw,1.24rem);letter-spacing:.12em}.hero-copy{font-size:.98rem}.top-nav{display:grid;grid-template-columns:1fr 1fr;width:100%}}

/* Gameplay 3D board parity with landing preview */
.senterej-board-stage[data-view="3d"]{--board-tilt:46deg;--piece-rise:0px;--piece-scale:.98;--piece-z:clamp(38px,5.2vw,58px);width:min(100%,980px);min-height:clamp(520px,70vw,800px);perspective:1550px;perspective-origin:50% 12%}.senterej-board-stage[data-view="3d"]:after{bottom:clamp(0rem,1.5vw,.8rem);height:24%}.senterej-board-shell[data-view="3d"]{width:min(100%,860px);transform:rotateX(var(--board-tilt)) rotateZ(-2deg) translateY(clamp(-2.2rem,-4.8vw,-1rem));box-shadow:0 48px 82px rgba(0,0,0,.72),0 12px 0 #271006,0 25px 0 #120704,inset 0 0 0 4px rgba(199,154,58,.17)}.senterej-board-shell[data-view="3d"]:after{bottom:-27px;height:38px;transform:rotateX(-46deg)}.senterej-board-shell[data-view="3d"] .senterej-board{background:radial-gradient(circle at 42% 24%,rgba(240,201,106,.16),transparent 22%),radial-gradient(circle at 66% 70%,rgba(5,5,5,.3),transparent 34%),linear-gradient(90deg,rgba(240,201,106,.52) 1px,transparent 1px),linear-gradient(0deg,rgba(240,201,106,.52) 1px,transparent 1px),repeating-linear-gradient(35deg,rgba(255,255,255,.03) 0 2px,transparent 2px 16px),repeating-linear-gradient(145deg,transparent 0 16px,rgba(240,201,106,.1) 16px 17px,transparent 17px 30px),linear-gradient(135deg,#a02c1c,var(--cs-red-board) 42%,#56110d 72%,#2b0907);background-size:auto,auto,12.5% 12.5%,12.5% 12.5%,auto,auto,auto}.senterej-board-shell[data-view="3d"] .senterej-square{overflow:visible}.senterej-board-shell[data-view="3d"] .senterej-piece{width:82%;height:98%;transform:translateX(var(--piece-center-x,0px)) translateY(32%) translateZ(var(--piece-z)) rotateX(calc(-1 * var(--board-tilt))) scale(var(--piece-scale));transform-origin:50% 86%;filter:drop-shadow(0 16px 8px rgba(0,0,0,.62)) drop-shadow(0 2px 0 rgba(255,240,168,.18))}.senterej-board-shell[data-view="3d"] .senterej-piece.is-selected,.senterej-board-shell[data-view="3d"] .senterej-square:hover:not(.is-disabled) .senterej-piece{transform:translateX(var(--piece-center-x,0px)) translateY(24%) translateZ(calc(var(--piece-z) + 14px)) rotateX(calc(-1 * var(--board-tilt))) scale(1.04);filter:drop-shadow(0 0 12px rgba(240,201,106,.72)) drop-shadow(0 18px 9px rgba(0,0,0,.66))}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="1"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"] .senterej-piece{width:64%;height:82%;transform:translateX(var(--piece-center-x,0px)) translateY(36%) translateZ(var(--piece-z)) rotateX(calc(-1 * var(--board-tilt))) scale(.98)}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="1"] .senterej-piece.is-selected,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"] .senterej-piece.is-selected,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="1"]:hover:not(.is-disabled) .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"]:hover:not(.is-disabled) .senterej-piece{transform:translateX(var(--piece-center-x,0px)) translateY(28%) translateZ(calc(var(--piece-z) + 14px)) rotateX(calc(-1 * var(--board-tilt))) scale(1.04)}@media(max-width:760px){.senterej-board-stage[data-view="3d"]{--board-tilt:38deg;--piece-z:clamp(30px,8vw,42px);min-height:min(122vw,590px);perspective:1150px;perspective-origin:50% 14%}.senterej-board-shell[data-view="3d"]{transform:rotateX(var(--board-tilt)) rotateZ(-2deg) translateY(-.85rem);width:min(84vw,520px)}.senterej-board-shell[data-view="3d"] .senterej-piece{width:84%;height:96%;transform:translateX(var(--piece-center-x,0px)) translateY(26%) translateZ(var(--piece-z)) rotateX(calc(-1 * var(--board-tilt))) scale(.96)}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="1"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"] .senterej-piece{width:66%;height:82%;transform:translateX(var(--piece-center-x,0px)) translateY(30%) translateZ(var(--piece-z)) rotateX(calc(-1 * var(--board-tilt))) scale(.96)}}.senterej-board-shell[data-view="3d"] .square-label{display:none}.senterej-piece__contact-shadow{fill:rgba(0,0,0,.5);filter:blur(1.2px)}.senterej-piece__extrusion{transform:translate(4px,5px);opacity:.86}.senterej-piece__extrusion .senterej-piece__metal,.senterej-piece__extrusion .senterej-piece__base{fill:#5d3909;stroke:#211104;stroke-width:3.1}.senterej-piece--black .senterej-piece__extrusion .senterej-piece__metal,.senterej-piece--black .senterej-piece__extrusion .senterej-piece__base{fill:#030406;stroke:#7f581d}.senterej-piece__extrusion .senterej-piece__line,.senterej-piece__extrusion .senterej-piece__base-line{display:none}.senterej-piece__face{filter:drop-shadow(-1px -1px 0 rgba(255,240,168,.34)) drop-shadow(2px 3px 1px rgba(33,17,4,.42))}.senterej-piece__base-side{fill:#5d3909;stroke:#211104;stroke-width:1.8}.senterej-piece--black .senterej-piece__base-side{fill:#020304;stroke:#9f7426}.senterej-piece__base-highlight{fill:rgba(255,240,168,.45);pointer-events:none}.senterej-piece__rim-light{fill:none;stroke:rgba(255,240,168,.72);stroke-width:1.4;stroke-linecap:round;opacity:.68;pointer-events:none}.senterej-board-shell[data-view="3d"] .senterej-piece{filter:drop-shadow(0 19px 10px rgba(0,0,0,.72)) drop-shadow(-2px -2px 0 rgba(255,240,168,.15)) drop-shadow(3px 2px 0 rgba(41,19,4,.35))}.senterej-board-shell[data-view="3d"] .senterej-piece--black{filter:drop-shadow(0 18px 10px rgba(0,0,0,.78)) drop-shadow(-1px -1px 0 rgba(240,201,106,.32)) drop-shadow(3px 2px 0 rgba(0,0,0,.65))}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="0"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="0"] .senterej-piece{--piece-center-x:11px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="1"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="1"] .senterej-piece{--piece-center-x:8px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="2"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="2"] .senterej-piece{--piece-center-x:4px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="3"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="3"] .senterej-piece{--piece-center-x:1px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="4"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="4"] .senterej-piece{--piece-center-x:-2px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="5"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="5"] .senterej-piece{--piece-center-x:-5px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="6"] .senterej-piece,.senterej-board-shell[data-view=3d] .senterej-square[data-row="7"][data-col="6"] .senterej-piece{--piece-center-x:-9px}.senterej-board-shell[data-view=3d] .senterej-square[data-row="6"][data-col="7"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="0"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="0"] .senterej-piece{--piece-center-x:11px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="1"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="1"] .senterej-piece{--piece-center-x:8px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="2"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="2"] .senterej-piece{--piece-center-x:4px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="3"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="3"] .senterej-piece{--piece-center-x:1px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="4"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="4"] .senterej-piece{--piece-center-x:-2px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="5"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="5"] .senterej-piece{--piece-center-x:-5px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="6"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="6"] .senterej-piece{--piece-center-x:-9px}.senterej-board-shell[data-view="3d"] .senterej-square[data-row="6"][data-col="7"] .senterej-piece,.senterej-board-shell[data-view="3d"] .senterej-square[data-row="7"][data-col="7"] .senterej-piece{--piece-center-x:-13px}.hero-mini-square:nth-child(8n+1) .senterej-piece{--hero-piece-center-x:8px}.hero-mini-square:nth-child(8n+2) .senterej-piece{--hero-piece-center-x:6px}.hero-mini-square:nth-child(8n+3) .senterej-piece{--hero-piece-center-x:3px}.hero-mini-square:nth-child(8n+4) .senterej-piece{--hero-piece-center-x:1px}.hero-mini-square:nth-child(8n+5) .senterej-piece{--hero-piece-center-x:-1px}.hero-mini-square:nth-child(8n+6) .senterej-piece{--hero-piece-center-x:-4px}.hero-mini-square:nth-child(8n+7) .senterej-piece{--hero-piece-center-x:-6px}.hero-mini-square:nth-child(8n) .senterej-piece{--hero-piece-center-x:-9px}.senterej-board-shell .senterej-square[data-row="6"][data-col="0"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="0"] .senterej-piece{--piece-center-x:11px}.senterej-board-shell .senterej-square[data-row="6"][data-col="1"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="1"] .senterej-piece{--piece-center-x:8px}.senterej-board-shell .senterej-square[data-row="6"][data-col="2"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="2"] .senterej-piece{--piece-center-x:4px}.senterej-board-shell .senterej-square[data-row="6"][data-col="3"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="3"] .senterej-piece{--piece-center-x:1px}.senterej-board-shell .senterej-square[data-row="6"][data-col="4"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="4"] .senterej-piece{--piece-center-x:-2px}.senterej-board-shell .senterej-square[data-row="6"][data-col="5"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="5"] .senterej-piece{--piece-center-x:-5px}.senterej-board-shell .senterej-square[data-row="6"][data-col="6"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="6"] .senterej-piece{--piece-center-x:-9px}.senterej-board-shell .senterej-square[data-row="6"][data-col="7"] .senterej-piece,.senterej-board-shell .senterej-square[data-row="7"][data-col="7"] .senterej-piece{--piece-center-x:-13px}.senterej-board-shell .senterej-square:nth-child(49) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(57) .senterej-piece{--piece-center-x:11px}.senterej-board-shell .senterej-square:nth-child(50) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(58) .senterej-piece{--piece-center-x:8px}.senterej-board-shell .senterej-square:nth-child(51) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(59) .senterej-piece{--piece-center-x:4px}.senterej-board-shell .senterej-square:nth-child(52) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(60) .senterej-piece{--piece-center-x:1px}.senterej-board-shell .senterej-square:nth-child(53) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(61) .senterej-piece{--piece-center-x:-2px}.senterej-board-shell .senterej-square:nth-child(54) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(62) .senterej-piece{--piece-center-x:-5px}.senterej-board-shell .senterej-square:nth-child(55) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(63) .senterej-piece{--piece-center-x:-9px}.senterej-board-shell .senterej-square:nth-child(56) .senterej-piece,.senterej-board-shell .senterej-square:nth-child(64) .senterej-piece{--piece-center-x:-13px}
.senterej-piece--black .senterej-piece__extrusion .senterej-piece__metal,
.senterej-piece--black .senterej-piece__extrusion .senterej-piece__base{fill:#5d3909;stroke:#120904}.senterej-piece--black .senterej-piece__base-side{fill:#4f3007;stroke:#100802}.senterej-piece--black .senterej-piece__metal{fill:url("#pieceGold");stroke:#0b0702;stroke-width:2.25}.senterej-piece--black .senterej-piece__base{fill:url("#pieceBaseGold");stroke:#0b0702;stroke-width:2.1}.senterej-piece--black{color:#050505}.senterej-piece--black .senterej-piece__face{filter:brightness(.7) contrast(1.28) saturate(.85) drop-shadow(-1px -1px 0 rgba(240,201,106,.4)) drop-shadow(2px 3px 1px rgba(0,0,0,.78))}.senterej-piece--black .senterej-piece__line,.senterej-piece--black .senterej-piece__base-line{stroke:#050505;opacity:.94}.senterej-piece--black .senterej-piece__base-highlight{fill:rgba(240,201,106,.32)}.senterej-piece--black .senterej-piece__rim-light{stroke:rgba(240,201,106,.82)}