:root{color:#1d2528;background:#f5f1e8;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}input{width:100%;border:1px solid #cbd3d1;border-radius:8px;padding:.72rem .82rem;color:#1d2528;background:#fffdf8;outline:none}input:focus{border-color:#24736b;box-shadow:0 0 0 3px #24736b29}label{display:grid;gap:.4rem;color:#546164;font-size:.9rem;font-weight:650}.shell{width:min(1180px,calc(100vw - 28px));margin:0 auto;padding:18px 0 32px}.centered{min-height:100vh;display:grid;place-items:center}.topbar,.gameHeader,.sectionHeader{display:flex;align-items:center;justify-content:space-between;gap:1rem}.topbar{min-height:58px;margin-bottom:18px;border-bottom:1px solid rgba(29,37,40,.12)}.brandButton{border:0;background:transparent;color:#1d2528;font-size:1.15rem;font-weight:800;padding:0}.topbarRight{display:flex;align-items:center;gap:.7rem}.userPill,.countPill,.statusPill{border:1px solid rgba(36,115,107,.22);border-radius:999px;padding:.34rem .72rem;background:#eef7f4;color:#214b48;font-size:.86rem;font-weight:750}.loginShell{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(180deg,rgba(36,115,107,.08),transparent 45%),#f5f1e8}.loginPanel{width:min(420px,100%);display:grid;gap:1rem;border:1px solid rgba(29,37,40,.12);border-radius:8px;padding:28px;background:#fffdf8;box-shadow:0 18px 42px #1f2b2b1f}.eyebrow{margin:0 0 .22rem;color:#24736b;font-size:.78rem;font-weight:800;letter-spacing:0;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{margin-bottom:.2rem;font-size:clamp(2rem,8vw,3rem);line-height:1}h2{margin-bottom:0;font-size:1.35rem;line-height:1.18}h3{margin-bottom:.3rem;font-size:1rem}.primaryButton,.secondaryButton,.dangerButton,.iconTextButton,.iconButton{display:inline-flex;min-height:40px;align-items:center;justify-content:center;gap:.45rem;border-radius:8px;border:1px solid transparent;padding:.64rem .88rem;font-weight:750}.primaryButton{background:#24736b;color:#fff}.secondaryButton,.iconTextButton{border-color:#24736b47;background:#fffdf8;color:#1d4f4a}.dangerButton{border-color:#b73f4a47;background:#fff7f7;color:#9d2f3e}.iconButton{width:40px;padding:0;border-color:#1d252824;background:#fffdf8;color:#314144}.iconButton.filled{background:#24736b;color:#fff}.errorText{border-left:4px solid #b73f4a;padding:.66rem .75rem;background:#fff2f2;color:#8f2734;font-size:.92rem;font-weight:650}.undoPanel{display:flex;align-items:center;justify-content:space-between;gap:1rem;border:1px solid rgba(36,115,107,.22);border-radius:8px;padding:.85rem 1rem;background:#eef7f4;color:#214b48}.undoPanel div:first-child{display:grid;gap:.18rem}.undoPanel strong{color:#163f3b}.undoPanel span{color:#506668}.undoActions{display:flex;align-items:center;gap:.55rem;flex-shrink:0}.loadingBlock,.emptyState{border:1px solid rgba(29,37,40,.12);border-radius:8px;padding:1rem;background:#fffdf8}.homeGrid{display:grid;grid-template-columns:minmax(280px,360px) 1fr;gap:18px;align-items:start}.newGamePanel,.gamesPanel,.sidePanel{border:1px solid rgba(29,37,40,.12);border-radius:8px;background:#fffdf8e0}.newGamePanel{display:grid;gap:1rem;padding:18px}.newGameForm{display:grid;gap:1rem}.segmented{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #cbd3d1;border-radius:8px;overflow:hidden;background:#f3f7f4}.segmented button{min-height:42px;border:0;border-right:1px solid #cbd3d1;background:transparent;color:#344447;font-weight:750}.segmented button:last-child{border-right:0}.segmented button.active{background:#24736b;color:#fff}.gamesPanel{padding:18px}.gameList{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin-top:1rem}.gameCard{display:grid;gap:.75rem;border:1px solid rgba(29,37,40,.12);border-radius:8px;padding:14px;background:#fff}.gameCard p,.mutedText{margin-bottom:0;color:#667477}.gameMeta{display:grid;gap:.35rem;color:#647174;font-size:.84rem}.gameMeta span{display:inline-flex;align-items:center;gap:.35rem}.messagePreview{border-left:3px solid #e18a63;padding-left:.6rem;color:#5a463b;font-size:.9rem}.gameActions,.headerActions{display:flex;align-items:center;gap:.55rem}.gameActions{justify-content:space-between}.dangerIcon{border-color:#b73f4a47;background:#fff7f7;color:#9d2f3e}.gameView{display:grid;gap:14px}.gameHeader{align-items:center}.playLayout{display:grid;grid-template-columns:minmax(320px,660px) minmax(280px,1fr);gap:18px;align-items:start}.boardColumn{display:grid;gap:12px}.boardWrap{position:relative;display:grid;gap:10px}.boardStatus,.presenceLine,.playerStrip{display:flex;align-items:center;justify-content:space-between;gap:.8rem}.boardStatus{color:#657276;font-size:.92rem}.boardStatus strong{color:#1d4f4a}.chessBoard{width:min(100%,660px);aspect-ratio:1;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));overflow:hidden;border:10px solid #9a6a46;border-radius:8px;box-shadow:0 18px 38px #1f2b2b24;background:#9a6a46}.square{position:relative;width:100%;height:100%;min-width:0;min-height:0;border:0;border-radius:0;padding:0;display:grid;place-items:center}.square.light{background:#f6dfb7}.square.dark{background:#bd7d4c}.square.selected{box-shadow:inset 0 0 0 4px #f1c84b}.square.lastMove{box-shadow:inset 0 0 0 4px #4465c461}.square.selected.lastMove{box-shadow:inset 0 0 0 4px #f1c84b,inset 0 0 0 7px #4465c447}.square.legal:after{content:"";width:22%;aspect-ratio:1;border-radius:999px;background:#3789608c}.square.capture:after{content:"";position:absolute;top:12%;right:12%;bottom:12%;left:12%;border:4px solid rgba(183,63,74,.72);border-radius:999px;background:transparent}.coord{position:absolute;color:#1d252873;font-size:clamp(.52rem,1.9vw,.72rem);font-weight:800;pointer-events:none}.fileCoord{right:5px;bottom:3px}.rankCoord{top:3px;left:5px}.pieceArt{width:92%;aspect-ratio:1;display:block;filter:drop-shadow(0 6px 7px rgba(29,37,40,.24));transform:translateY(-2px);pointer-events:none}.pieceArt img{width:100%;height:100%;display:block;object-fit:contain;-webkit-user-select:none;user-select:none}.promotionOverlay{position:absolute;top:0;right:0;bottom:0;left:0;display:grid;place-items:center;background:#1d252852;border-radius:8px;z-index:5}.promotionPanel{width:min(280px,calc(100% - 32px));display:grid;gap:.8rem;border-radius:8px;padding:16px;background:#fffdf8;box-shadow:0 18px 40px #1d252840}.promotionChoices{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.promotionChoices button{min-height:46px;border:1px solid rgba(36,115,107,.28);border-radius:8px;background:#eef7f4;color:#1d4f4a;font-weight:800}.moveComment{border:1px solid rgba(29,37,40,.12);border-radius:8px;padding:12px;background:#fffdf8}.sidePanel{display:grid;gap:14px;padding:14px}.playerStrip{align-items:stretch}.playerStrip div{flex:1;display:grid;gap:.3rem;border:1px solid rgba(29,37,40,.1);border-radius:8px;padding:.75rem;background:#fff}.playerStrip span{color:#1d2528;font-weight:800}.playerStrip strong{color:#647174;font-size:.82rem}.presenceLine{border-radius:8px;padding:.7rem;background:#eef7f4;color:#375856}.movesBox,.chatBox{display:grid;gap:.7rem}.moveList{max-height:200px;overflow:auto;display:grid;gap:.42rem;margin:0;padding-left:1.3rem}.moveList li{color:#647174}.moveList strong{margin:0 .35rem;color:#1d2528}.moveList em{color:#8a5a42;font-style:normal}.messages{max-height:220px;overflow:auto;display:grid;gap:.55rem}.chatMessage{display:grid;gap:.16rem;border-left:3px solid #24736b;padding:.45rem .6rem;background:#fff}.chatMessage strong{color:#1d4f4a;font-size:.82rem}.chatMessage span{color:#263235}.messageForm{display:grid;grid-template-columns:1fr 40px;gap:.55rem}@media(max-width:860px){.shell{width:min(100vw - 20px,720px);padding-top:10px}.homeGrid,.playLayout{grid-template-columns:1fr}.gameHeader{display:grid;grid-template-columns:auto 1fr auto}.chessBoard{border-width:7px}}@media(max-width:520px){.topbar{align-items:flex-start;padding-bottom:10px}.userPill{max-width:140px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.gameHeader{grid-template-columns:1fr}.undoPanel{align-items:stretch;flex-direction:column}.undoActions{display:grid;grid-template-columns:1fr 1fr}.playerStrip{flex-direction:column}.pieceArt{width:96%}.coord{display:none}}