:root{--ink:#0a0a0a;--paper:#f6f6f2;--wash:#deded8;--mid:#92928c;--line:2px solid var(--ink)}
*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0;overflow:hidden}body{background:var(--paper);color:var(--ink);font-family:monospace;font-size:14px}.app-shell{height:100vh;display:grid;grid-template-rows:48px 1fr;background:var(--paper)}.loading{display:flex;align-items:center;justify-content:center;gap:14px;letter-spacing:.1em}.topbar{height:48px;border-bottom:var(--line);display:flex;align-items:center;justify-content:space-between;background:var(--ink);color:var(--paper)}button{font:inherit;color:inherit;border-radius:0;touch-action:manipulation;cursor:pointer}.brand{height:48px;border:0;background:transparent;color:inherit;font-weight:bold;letter-spacing:.06em;padding:0 14px 0 0}.brand-mark{display:inline-flex;width:48px;height:48px;align-items:center;justify-content:center;margin-right:12px;background:var(--paper);color:var(--ink)}.system{padding:0 14px;font-size:11px;letter-spacing:.1em}.screen{min-height:0;overflow:hidden}.menu{height:100%;display:grid;grid-template-columns:1.25fr .75fr;grid-template-rows:1fr 38px}.hero{display:flex;flex-direction:column;justify-content:center;padding:6vw;border-right:var(--line);background-image:linear-gradient(var(--wash) 1px,transparent 1px),linear-gradient(90deg,var(--wash) 1px,transparent 1px);background-size:32px 32px}.eyebrow{margin:0;font-size:10px;font-weight:bold;letter-spacing:.12em}.hero .eyebrow{align-self:flex-start;padding:5px 8px;background:var(--ink);color:var(--paper)}h1{margin:28px 0 14px;font-size:clamp(42px,8vw,92px);line-height:.82;letter-spacing:-.09em}.lead{max-width:560px;margin:0;border-left:8px solid var(--ink);background:var(--paper);padding:12px;font-size:16px;line-height:1.35}.menu-actions{display:flex;flex-direction:column;justify-content:center;gap:12px;padding:4vw}.primary,.secondary{min-height:48px;border:var(--line);padding:10px 13px;font-size:12px;font-weight:bold;letter-spacing:.05em}.primary{background:var(--ink);color:var(--paper)}.secondary{background:var(--paper)}.wide{display:flex;align-items:center;justify-content:space-between;min-height:58px}.footer{grid-column:1/-1;border-top:var(--line);padding:11px 14px;display:flex;justify-content:space-between;font-size:10px;font-weight:bold}.form,.archive{height:100%;max-width:940px;margin:auto;padding:clamp(18px,4vh,40px) clamp(16px,4vw,48px);display:flex;flex-direction:column;gap:20px}.heading{display:flex;align-items:center;gap:16px;border-bottom:var(--line);padding-bottom:12px}.heading b{width:48px;height:48px;display:grid;place-items:center;background:var(--ink);color:var(--paper);font-size:18px}.heading h2{margin:3px 0 0;font-size:clamp(27px,5vw,45px);line-height:1;letter-spacing:-.05em}.heading .close{margin-left:auto}.field{border:0;margin:0;padding:0}.field legend{margin-bottom:8px;font-weight:bold;font-size:11px;letter-spacing:.1em}.choices{display:grid;grid-template-columns:1fr 1fr;border:var(--line)}.choices.three{grid-template-columns:repeat(3,1fr)}.choices button{min-height:54px;border:0;border-right:var(--line);background:var(--paper);font-size:11px;font-weight:bold}.choices button:last-child{border-right:0}.choices .chosen{background:var(--ink);color:var(--paper)}.form-actions{margin-top:auto;display:grid;grid-template-columns:1fr 1fr;gap:12px}.game{height:100%;display:grid;grid-template-columns:minmax(0,1fr) 300px}.board-col{display:flex;min-width:0;min-height:0;flex-direction:column;align-items:center;justify-content:center;padding:8px 14px 12px;border-right:var(--line)}.caption{width:min(calc(100vw - 338px),calc(100vh - 98px));min-width:280px;max-width:720px;display:flex;justify-content:space-between;gap:8px;padding-bottom:7px;font-size:10px;font-weight:bold;white-space:nowrap;overflow:hidden}.caption strong{overflow:hidden;text-overflow:ellipsis}.board{width:min(calc(100vw - 338px),calc(100vh - 98px));min-width:280px;max-width:720px;aspect-ratio:1;display:grid;grid-template-columns:repeat(8,1fr);border:3px solid var(--ink)}.square{position:relative;min-width:0;border:0;padding:0;display:grid;place-items:center}.light{background:#f8f8f3}.dark{background:#c6c6be}.piece{position:relative;z-index:2;font-family:Georgia,'Times New Roman',serif;font-size:clamp(29px,7.2vmin,66px);line-height:1}.last:after,.selected:after{position:absolute;content:"";inset:5px;border:2px solid var(--ink)}.selected:after{inset:2px;border:4px double var(--ink)}.legal:before{position:absolute;content:"";z-index:3;width:12px;height:12px;border:3px solid var(--ink);background:var(--paper)}.legal.occupied:before{width:calc(100% - 12px);height:calc(100% - 12px);background:transparent;border-style:dashed}.hint-from:before,.hint-to:before{position:absolute;content:"";z-index:4;inset:7px;border:3px dashed var(--ink)}.hint-to:before{inset:3px;border-style:double;border-width:5px}.check{background-image:repeating-linear-gradient(45deg,transparent 0 5px,var(--ink) 5px 7px)}.coord{position:absolute;z-index:5;font-size:9px;font-weight:bold}.rank{top:3px;left:3px}.file{right:3px;bottom:3px}.panel{min-height:0;display:grid;grid-template-rows:auto 1fr auto}.status{padding:17px;border-bottom:var(--line);display:grid;gap:8px}.status strong{font-size:16px;line-height:1.15}.moves{min-height:0;padding:14px 18px;overflow-y:auto}.moves ol{margin:10px 0;padding:0;list-style:none}.moves li{display:grid;grid-template-columns:36px 1fr 1fr;min-height:28px;border-top:1px solid var(--mid);align-items:center;font-size:12px}.actions{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:10px;border-top:var(--line)}.actions button{font-size:10px}.list{min-height:0;overflow-y:auto;border:var(--line)}.row{display:grid;grid-template-columns:1fr 48px;min-height:68px;border-bottom:var(--line)}.row-main{border:0;background:transparent;display:grid;grid-template-columns:42px 1fr auto;gap:10px;align-items:center;padding:9px;text-align:left}.row-main small{display:block;margin-top:5px;font-size:10px}.delete{border:0;border-left:var(--line);background:var(--paper);font-size:22px}.empty{min-height:250px;display:grid;place-items:center;align-content:center;gap:12px;text-align:center;padding:20px}.modal-bg{position:fixed;z-index:10;inset:0;background:rgba(0,0,0,.8);display:grid;place-items:center;padding:16px}.modal{max-width:420px;width:100%;border:4px double var(--ink);background:var(--paper);padding:22px;box-shadow:10px 10px 0 var(--ink)}.modal h3{font-size:22px;margin:8px 0 16px}.promo{display:grid;grid-template-columns:repeat(4,1fr);border:var(--line)}.promo button{min-height:72px;border:0;border-right:var(--line);background:var(--paper);font:42px Georgia}.modal-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:18px}.hide{display:none!important}
@media (orientation:portrait),(max-width:760px){.menu{grid-template-columns:1fr;grid-template-rows:1fr auto 36px}.hero{padding:32px 22px;border-right:0;border-bottom:var(--line)}h1{font-size:clamp(40px,12vw,82px);margin:16px 0 10px}.lead{font-size:13px;padding:8px}.menu-actions{padding:14px 18px;gap:8px}.game{grid-template-columns:1fr;grid-template-rows:1fr 150px}.board-col{padding:5px 8px 8px;border-right:0;border-bottom:var(--line)}.board,.caption{width:min(96vw,calc(100vh - 232px));min-width:248px}.panel{grid-template-columns:180px 1fr;grid-template-rows:1fr 48px}.status{border-right:var(--line);border-bottom:0;padding:10px}.status strong{font-size:13px}.moves{padding:8px 10px}.actions{grid-column:1/-1;padding:5px}.form,.archive{padding:14px 12px;gap:12px}.choices button{font-size:10px}.row-main{grid-template-columns:30px 1fr 22px}.row-main .result{display:none}}
.hint-screen{height:100%;max-width:760px;margin:auto;padding:clamp(18px,4vh,40px) clamp(16px,5vw,56px);display:flex;flex-direction:column;gap:14px;overflow-y:auto}.hint-screen .heading{flex:0 0 auto}.hint-block{border:var(--line);padding:12px 14px;display:grid;gap:8px;background:var(--paper)}.hint-block strong{font-size:18px;line-height:1.25}.hint-block p{margin:0;line-height:1.35}.hint-block ol{margin:0;padding-left:20px;line-height:1.4}.hint-screen .primary{margin-top:auto}
#app .app-shell{height:100%}