:root{font-family:Inter,Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Malgun Gothic,sans-serif;color:#293b54;background:#f5f7fb;font-synthesis:none;line-height:1.55;--navy:#172c45;--blue:#416de8;--muted:#75849a;--line:#e5eaf2;--gold:#c6a371}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}button{cursor:pointer;border:0;color:inherit;background:none;transition:background .18s,color .18s,box-shadow .18s}button:disabled{opacity:.42;cursor:not-allowed}button,input{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid #87a9ff;outline-offset:3px}button:not(:disabled):active{transform:translateY(1px)}svg{flex-shrink:0;vertical-align:middle}h1,h2,h3,p{margin:0}a{color:var(--blue)}.app-layout{display:flex;min-height:100dvh}.sidebar{width:218px;position:fixed;inset:0 auto 0 0;background:var(--navy);color:#becadb;z-index:20;padding:33px 18px 25px;display:flex;flex-direction:column}.brand{display:flex;gap:10px;align-items:center;padding:0 8px;color:#fff;font-size:24px;line-height:1.2;letter-spacing:-1.2px;font-weight:750;text-align:left;white-space:nowrap}.brand img{width:39px;height:43px}.brand small{display:block;font-size:12px;letter-spacing:2px;color:#94a6bd;margin-top:7px;font-weight:500}.nav-caption{font-size:12px;letter-spacing:1.8px;color:#71849f;margin:44px 13px 17px;font-weight:600}.sidebar nav{display:flex;flex-direction:column;gap:8px}.nav-item{display:flex;align-items:center;gap:12px;width:100%;padding:14px 15px;font-size:14px;font-weight:600;color:#94a6be;border-radius:10px;white-space:nowrap;text-align:left}.nav-item>span{flex:1}.nav-item>svg{color:#879bb5}.nav-item:hover{color:#dce7f7;background:#243953}.nav-item.active{color:#f4f7ff;background:#2d4668;box-shadow:inset 3px 0 #bd9d70}.nav-item.active>svg{color:#d3b583}.nav-item>b{background:#4b6080;color:#dde8fb;font-size:13px;padding:1px 6px;border-radius:5px}.sidebar-bottom{margin-top:auto;padding-top:35px}.sidebar-art{position:relative;display:flex;gap:0;align-items:center;padding:8px;border:1px solid #31445e;border-radius:12px;background:linear-gradient(130deg,#273e5c,#1f334d);overflow:hidden}.sidebar-art>.piece{width:69px;transform:rotate(-11deg);margin-left:-12px;filter:drop-shadow(0 7px 6px #0c1e3750)}.sidebar-art>span{font-size:13px;line-height:1.7;color:#8095b2;letter-spacing:.6px}.sidebar-art b{font-weight:600;color:#c8b396}.sidebar-art>i{position:absolute;right:8px;top:9px;color:#b29c7b;font-style:normal}.sidebar-bottom>p{font-size:13px;color:#8fa0b7;line-height:1.9;margin:17px 11px 24px}.sidebar-bottom>.nav-item{font-size:13.5px;padding:12px 8px;gap:8px;border-top:1px solid #2c3e56;border-radius:0}.sidebar-bottom>small{display:block;font-size:11.5px;letter-spacing:2px;color:#71839d;margin:20px 10px 0}.main-wrapper{margin-left:218px;min-width:0;width:calc(100% - 218px)}.topbar{height:79px;background:#fff;border-bottom:1px solid var(--line);padding:0 38px;display:flex;align-items:center;justify-content:space-between;gap:15px}.breadcrumb{display:flex;align-items:center;gap:11px;font-size:13.5px;color:#94a0b2}.breadcrumb>strong{font-size:13.5px;font-weight:600;color:#65738a}.breadcrumb>svg{color:#c1cbda}.top-actions{display:flex;align-items:center;gap:18px}.connection{display:flex;align-items:center;gap:6px;font-size:13px;color:#8a97ab;white-space:nowrap}.connection>i{width:5px;height:5px;border-radius:50%;background:#b3c0d3}.connection.connected>i{background:#7eae96}.profile-chip{display:flex;align-items:center;gap:7px;font-size:13.5px;color:#64768f;background:#f5f7fa;border:1px solid #e9edf3;padding:7px 11px;border-radius:20px}.profile-chip svg{color:#9eadc1}.icon-button{width:32px;height:32px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;color:#8293ac}.icon-button:hover{background:#f0f4fa;color:#456bd0}.main-content{max-width:1300px;margin:0 auto;padding:31px 38px 22px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:27px}.eyebrow{display:flex;align-items:center;gap:7px;font-size:12px;letter-spacing:1.6px;font-weight:700;color:#879ab5}.eyebrow>span{width:5px;height:5px;background:#c8ac82;transform:rotate(45deg)}.page-heading h1{font-size:32px;font-weight:800;letter-spacing:-1.6px;line-height:1.45;margin-top:9px;overflow-wrap:anywhere}.page-heading h1>span{font-weight:500;color:#8595ae}.page-heading p{font-size:13.5px;line-height:1.9;color:#7b8ba3;margin-top:9px;letter-spacing:-.2px}.text-button{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:0;min-height:30px;font-size:13.5px;font-weight:650;color:#5f7bb3}.text-button:hover{color:#315bcc}.guide-link{font-size:13px;white-space:nowrap;align-self:flex-end;margin-bottom:2px}.button{display:inline-flex;align-items:center;justify-content:center;gap:7px;border:1px solid transparent;border-radius:9px;padding:10px 14px;font-size:14px;font-weight:650;line-height:1.5;min-height:40px;white-space:nowrap}.button.primary{color:#fff;background:var(--blue);box-shadow:0 4px 8px #406ae412}.button.primary:not(:disabled):hover{background:#325cd0;box-shadow:0 5px 14px #416de829}.button.subtle{color:#72839c;border-color:#e4eaf2;background:#f5f7fb}.button.subtle:hover{background:#edf1f9}.button.danger{color:#fff;background:#c96863}.button.full{width:100%}.button.large{padding:14px 18px;min-height:49px;font-size:14px;border-radius:10px}.button+.button.full{margin-top:9px}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:24px;align-items:start}.board-panel{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;min-width:0;box-shadow:0 3px 12px #1b314f03}.board-panel-heading{padding:17px 19px;display:flex;align-items:center;justify-content:space-between;gap:8px;border-bottom:1px solid #edf1f6}.board-mode{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:650;color:#627797}.board-mode>svg{color:#869ab9}.board-mode>span:last-child{font-size:12.5px;font-weight:400;color:#8998ad}.divider{height:11px;width:1px;background:#dfe5ee;margin:0 1px}.casual-label{display:flex;align-items:center;gap:5px;font-size:12.5px;color:#8f9db2;white-space:nowrap}.player-bar{display:flex;align-items:center;gap:10px;margin:0 19px;padding:14px 0;min-height:67px}.avatar{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;background:#edf1f8;border:1px solid #dfe6f0;border-radius:10px;color:#6e87a9;flex-shrink:0}.avatar.side-b{background:#e7ecf4;border-color:#dbe3ef;color:#4b6589}.player-info{min-width:0}.player-info strong{display:flex;align-items:center;gap:6px;font-size:14px;font-weight:650;color:#415774;white-space:nowrap}.player-info strong>span{font-size:11.5px;color:#7b95bd;background:#edf2fb;border:1px solid #e4ebf7;border-radius:4px;padding:1px 4px}.player-info small{display:block;font-size:12.5px;color:#8696ac;margin-top:2px}.player-state{font-size:12px;color:#93a1b6;white-space:nowrap;margin-left:auto;display:flex;align-items:center;gap:5px}.player-state.turn{color:#6382b8;font-size:12.5px;background:#edf3ff;border:1px solid #e3ebfe;border-radius:5px;padding:4px 7px}.player-state i{width:4px;height:4px;border-radius:50%;background:#7b9ee7}.player-bar.current .avatar{border-color:#b2c6ee;box-shadow:0 0 0 3px #f2f6ff}.captured-pieces{display:flex;align-items:center;flex-wrap:wrap;margin-left:4px;max-width:38%;gap:0}.captured-pieces .piece{width:20px;height:22px;margin-right:-6px;flex-shrink:0}.board-shell{position:relative;margin:0 19px 0 12px;padding-left:19px;padding-bottom:22px}.chess-board{display:flex;flex-direction:column;width:100%;aspect-ratio:1;border:4px solid #bac6d7;border-radius:4px;overflow:hidden;box-shadow:0 3px 8px #24406213}.board-row{display:flex;flex:1;min-height:0}.square{position:relative;width:12.5%;height:100%;padding:0;display:flex;align-items:center;justify-content:center;border:0;border-radius:0;isolation:isolate;outline-offset:-4px!important}.square.light{background:#e9edf3}.square.dark{background:#879bb7}.square.light.last-move{background:#ddd8a8}.square.dark.last-move{background:#a5ac86}.square.selected.light,.square.selected.dark{background:#b8c297;box-shadow:inset 0 0 0 3px #729561}.square[aria-disabled=true]{cursor:default}.square:not([aria-disabled=true]):hover{box-shadow:inset 0 0 0 3px #748bbb70}.square .piece{width:85%;height:85%;pointer-events:none;filter:drop-shadow(0 2px 1px #15253835);z-index:1}.square:active{transform:none!important}.square.in-check{background:#ce8d89!important}.check-marker{position:absolute;top:4px;right:5px;border-radius:50%;height:15px;width:15px;display:grid;place-items:center;color:#fff;background:#b85455;font-size:13px;font-weight:800;z-index:3}.rank-labels{position:absolute;left:0;top:4px;bottom:26px;width:17px;display:flex;flex-direction:column}.rank-labels>span{flex:1;display:grid;place-items:center;font-size:12.5px;color:#90a0b6;font-weight:600}.file-labels{position:absolute;bottom:0;left:23px;right:4px;height:22px;display:flex}.file-labels>span{flex:1;display:grid;place-items:center;font-size:12.5px;color:#90a0b6;font-weight:600}.move-target{height:23%;width:23%;border-radius:50%;background:#24426340;position:absolute;z-index:2;pointer-events:none}.capture-target{position:absolute;inset:3%;border:5px solid #38577970;border-radius:50%;z-index:3;pointer-events:none}.move-ripple{position:absolute;inset:7%;border:2px solid #4c6fe1;border-radius:50%;animation:ripple .65s ease-out forwards;pointer-events:none;z-index:3}.board-tools{display:flex;align-items:center;gap:17px;padding:12px 18px;background:#fcfdff;border-top:1px solid #edf1f7}.board-tools>button{display:flex;align-items:center;gap:5px;font-size:12.5px;color:#7d8ca4;padding:3px 0;min-height:25px;white-space:nowrap}.board-tools>button.enabled{color:#5d7db7}.board-tools>span{flex:1}.game-side{display:flex;flex-direction:column;gap:17px;min-width:0}.settings-card,.moves-card,.tip-card,.turn-card,.chat-card{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}.settings-card{padding:23px 20px}.card-eyebrow{font-size:11.5px;letter-spacing:1.6px;font-weight:750;color:#9aa9bf;display:block}.settings-card h2{font-size:19px;letter-spacing:-.6px;margin-top:6px;color:#364d6c}.settings-card>p{font-size:13px;color:#8c9bb0;margin-top:5px}.settings-card fieldset{margin:23px 0 0;border:0;padding:0;min-width:0}.settings-card legend,.setup-form legend{font-size:13px;font-weight:650;color:#617796;margin-bottom:9px;padding:0}.difficulty-list{display:flex;flex-direction:column;gap:7px}.difficulty-list>button{display:flex;align-items:center;gap:10px;border:1px solid #e5eaf3;border-radius:9px;padding:11px;text-align:left;color:#8798b0;background:#fcfdff;position:relative}.difficulty-list>button.selected{border-color:#b2c5f3;background:#f3f6ff;box-shadow:0 0 0 1px #dfe8ff40}.level-icon{height:31px;width:31px;display:grid;place-items:center;color:#8ea3c7;background:#eff3fb;border:1px solid #e6edf9;border-radius:8px;font-size:14px;font-family:Georgia,serif}.selected .level-icon{color:#6689d4;background:#e8efff;border-color:#dce6fc}.difficulty-list strong{font-size:13.5px;font-weight:650;display:block;color:#6780a1}.difficulty-list small{display:block;font-size:12.5px;color:#8b9bb2;margin-top:2px}.radio-dot{margin-left:auto;width:13px;height:13px;border:1px solid #cfd9e7;border-radius:50%}.selected>.radio-dot{border:4px solid #779aef;background:#fff}.color-choice{display:flex;gap:6px}.color-choice>button{flex:1;min-width:0;display:flex;align-items:center;justify-content:center;gap:5px;padding:11px 5px;border:1px solid #e4eaf3;border-radius:8px;font-size:12.5px;color:#7b8da7;white-space:nowrap;background:#fcfdff}.color-choice>button.selected{border-color:#aebfe5;background:#f2f6ff;color:#5c7dad}.color-dot{height:10px;width:10px;border:1px solid #9aabc2;border-radius:50%;display:inline-block;background:#fdfaf2}.color-dot.b{background:#314766;border-color:#314766}.color-dot.random{background:linear-gradient(90deg,#fffaf0 50%,#314766 50%)}.settings-card>.button{margin-top:23px}.setting-note{font-size:12px;display:flex;gap:5px;justify-content:center;align-items:center;color:#8c9db5;margin-top:13px;white-space:nowrap}.card-heading{display:flex;align-items:center;justify-content:space-between;gap:9px;padding:14px 16px;border-bottom:1px solid #edf1f7}.card-heading h3{display:flex;align-items:center;gap:7px;font-size:13.5px;color:#657d9e;font-weight:650}.card-heading svg{color:#97acca}.card-heading>span{font-size:12.5px;color:#8fa2bd}.move-columns,.move-pair{display:grid;grid-template-columns:35px 1fr 1fr;align-items:center;gap:6px;padding:7px 14px;font-size:13px}.move-columns{background:#f8fafd;color:#93a6bf;font-size:12.5px;text-align:center;border-bottom:1px solid #edf1f7}.moves-list{height:167px;overflow:auto;scrollbar-width:thin;scrollbar-color:#d6e0ef transparent}.move-pair{padding-top:7px;padding-bottom:7px;border-bottom:1px solid #f2f5fa;color:#9baec7;text-align:center}.move-pair b{font-weight:600;color:#6a809e;font-size:14px;font-family:Segoe UI,sans-serif}.move-pair .latest-san{color:#507bc2}.moves-empty{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:7px;color:#8399b7;height:100%;font-size:13px}.moves-empty small{font-size:12.5px;color:#9bacc3}.tip-card{position:relative;background:#edf2fa;border-color:#e1e8f4;padding:18px 17px;overflow:hidden;min-height:160px}.tip-card>span{display:flex;align-items:center;gap:6px;font-size:13px;color:#7c95b8}.tip-card h3{font-size:14px;color:#607b9f;font-weight:650;margin-top:11px}.tip-card p{font-size:12.5px;color:#7e96b5;line-height:1.85;max-width:170px;margin-top:7px}.mini-centre{position:absolute;right:13px;bottom:17px;display:grid;grid-template-columns:repeat(4,10px);grid-template-rows:repeat(4,10px);gap:1px;transform:rotate(-10deg);opacity:.6}.mini-centre>i{background:#ced9ed}.mini-centre>i:nth-child(2n){background:#e1e8f5}.mini-centre>i.marked{background:#9dafd0}.turn-card{padding:22px 18px}.turn-card.my-turn{border-color:#b6c8f2;background:linear-gradient(#f9fbff,#fff);box-shadow:0 3px 12px #5279c506}.turn-card.checked{border-color:#d8aaa4}.turn-title{display:flex;align-items:center;gap:10px;color:#839bbf;margin-top:13px}.turn-title>h2{font-size:15px;letter-spacing:-.5px;font-weight:700;color:#526e94}.turn-card>p{font-size:13px;color:#8d9fb7;margin:10px 0 16px;line-height:1.8}.game-actions{display:flex;gap:7px;margin-top:17px}.game-actions>.button{font-size:12.5px;padding:8px;flex:1;min-height:34px;gap:4px}.draw-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:6px;margin-top:13px}.draw-actions>p{font-size:13px;color:#8199b9;width:100%;text-align:center;margin-bottom:4px}.draw-actions .button{font-size:13px;padding:7px 12px;min-height:32px}.draw-actions .text-button{font-size:12.5px;color:#8b9bb4}.offline-notice{font-size:13px;padding:9px;border-radius:7px;color:#a67e52;background:#fbf4e9;margin-top:10px}.thinking-spinner{display:inline-block;width:22px;height:22px;border-radius:50%;border:2px solid #e2eaf8;border-top-color:#93aadd;animation:spin 1.4s linear infinite;flex-shrink:0}.chat-messages{height:160px;overflow:auto;padding:10px 12px;scrollbar-width:thin;scrollbar-color:#d6e0ef transparent}.chat-empty{font-size:13px;color:#7e96b6;line-height:1.9;text-align:center;padding-top:29px}.chat-empty small{display:block;font-size:12px;color:#9aacc4;margin-top:5px}.chat-message{margin:7px 0;display:flex;flex-direction:column;align-items:flex-start}.chat-message>span{font-size:12.5px;color:#8aa0bd;margin-bottom:3px}.chat-message time{font-size:12px;margin-left:7px;color:#9cadc4}.chat-message>p{max-width:96%;font-size:13.5px;padding:7px 9px;line-height:1.8;border-radius:0 8px 8px;background:#f1f5fa;color:#6a81a2;overflow-wrap:anywhere}.chat-message.mine{align-items:flex-end}.chat-message.mine>p{background:#eef3fe;border-radius:8px 0 8px 8px;color:#6283bb}.chat-form{display:flex;gap:6px;border-top:1px solid #edf1f7;padding:9px}.chat-form input{min-width:0;flex:1;background:#f7f9fc;border:0;border-radius:7px;font-size:13px;padding:9px;color:#6983a6}.chat-form input::placeholder{color:#8f9fb6}.chat-form button{display:grid;place-items:center;width:33px;background:#edf3ff;color:#7695c8;border-radius:7px}.waiting-card{text-align:center}.waiting-icon{height:66px;width:66px;display:grid;place-items:center;background:#edf3ff;color:#92aedb;border-radius:50%;margin:20px auto 17px;box-shadow:0 0 0 8px #f7f9fe}.waiting-card h2{font-size:17px}.invite-code{border:1px dashed #cbd9ef;border-radius:10px;padding:13px;margin-top:22px;background:#f8faff}.invite-code small{font-size:12.5px;color:#8d9fba;display:block}.invite-code strong{font-size:20px;letter-spacing:2px;font-family:monospace;color:#7c97bf;margin-top:3px;display:block}.waiting-card>.button{font-size:13.5px}.waiting-card>.button+.button{margin-top:8px}.bottom-note{display:flex;align-items:center;gap:6px;font-size:12.5px;color:#92a1b7;margin-top:23px;padding-top:16px;border-top:1px solid var(--line)}.bottom-note>svg{color:#a0b2ca}.bottom-note>span:last-child{margin-left:auto;font-size:11.5px;letter-spacing:1px;white-space:nowrap}.lobby-panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px;min-height:590px}.lobby-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px}.lobby-toolbar h2{display:flex;align-items:center;gap:8px;font-size:19px;letter-spacing:-.4px;color:#4d6687}.lobby-toolbar h2>span{font-size:13px;background:#ecf2ff;color:#698dcb;padding:3px 7px;border-radius:5px}.lobby-toolbar p{font-size:13px;color:#8d9db4;margin-top:7px}.lobby-search{display:flex;gap:10px;margin:24px 0}.lobby-search>label{display:flex;align-items:center;gap:9px;flex:1;padding:10px 12px;border:1px solid #e5ebf4;border-radius:9px;background:#fbfcfe;color:#9aabc4;min-width:0}.lobby-search input{border:0;background:none;min-width:0;flex:1;font-size:13.5px;color:#7189ab;outline:0}.lobby-search input::placeholder{color:#9caec8}.lobby-search .button{font-size:13px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:250px;text-align:center;color:#91a7c4;padding:30px 15px;gap:12px}.empty-state h3{font-size:15px;font-weight:650;color:#687f9e;margin-top:4px}.empty-state p{font-size:13.5px;color:#90a2bb;line-height:1.8}.empty-state .text-button{font-size:13px;margin-top:3px}.empty-piece{position:relative;background:#eef3fb;border-radius:22px;height:78px;width:80px;display:grid;place-items:center}.empty-piece .piece{height:67px;width:67px;transform:rotate(-7deg)}.room-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.room-card{border:1px solid var(--line);border-radius:12px;padding:19px 19px 0}.room-status{display:inline-flex;align-items:center;gap:5px;font-size:12.5px;color:#6b9b83;background:#eef7f2;border-radius:5px;padding:4px 7px}.room-status i{width:4px;height:4px;border-radius:50%;background:#86b19a}.room-status.playing{color:#8b8fb1;background:#f1f1f9}.room-status.playing i{background:#a1a2c7}.room-card h3{font-size:16px;color:#4c6485;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin:15px 0}.room-host{display:flex;align-items:center;gap:9px}.room-host .avatar{height:29px;width:29px;border-radius:9px}.room-host .avatar>svg{width:16px}.room-host>span{font-size:13.5px;color:#7389a7}.room-host small{font-size:12.5px;color:#9aaac1;display:block;margin-top:3px}.room-card-bottom{display:flex;align-items:center;justify-content:space-between;border-top:1px solid #edf1f7;margin-top:19px;padding:13px 0}.room-card-bottom>span{display:flex;align-items:center;gap:5px;font-size:13px;color:#94a6c0}.room-card-bottom>button{display:flex;align-items:center;gap:6px;color:#6385bc;font-size:13.5px;font-weight:650}.connection-banner,.notice{display:flex;align-items:center;gap:9px;background:#fdf6e9;border:1px solid #f0e3ca;color:#947e59;font-size:13.5px;padding:12px 15px;border-radius:10px;margin-bottom:17px}.connection-banner button,.notice button{margin-left:auto;padding:3px;font-size:13.5px;font-weight:650;white-space:nowrap}.notice{background:#fff2ee;border-color:#f0d8d0;color:#aa6a58}.spinner{height:15px;width:15px;display:inline-block;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}.modal{padding:25px;border:0;background:#fff;border-radius:18px;box-shadow:0 25px 100px #12223933;width:450px;max-width:calc(100vw - 26px);max-height:calc(100dvh - 38px);color:#344c6b;overflow:auto}.modal.wide{width:665px}.modal::backdrop{background:#13243c80;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}.modal-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px}.modal-heading h2{font-size:20px;font-weight:750;letter-spacing:-.6px}.modal-intro{font-size:14px;color:#8798b1;line-height:1.9;margin-bottom:23px}.setup-form{display:flex;flex-direction:column;gap:19px}.setup-form label{font-size:13.5px;font-weight:650;color:#6b819f;display:flex;flex-direction:column;gap:8px}.setup-form input{border:1px solid #dfe7f1;border-radius:9px;padding:12px;font-size:14px;color:#506c92;background:#fbfcff;width:100%;min-width:0}.setup-form input:read-only{background:#f2f5fa;color:#8095b4}.setup-form input::placeholder{color:#a1b0c5}.setup-form fieldset{border:0;padding:0;margin:0;min-width:0}.setup-form .color-choice>button{font-size:13.5px}.code-input{font-family:monospace;font-size:18px!important;letter-spacing:3px}.form-summary{display:flex;align-items:center;gap:9px;padding:12px;background:#f3f6fc;border-radius:9px;font-size:13.5px;color:#7a92b6}.form-summary>span{opacity:.5}.form-error{font-size:13.5px;color:#ad6b5d;background:#fff3ef;border-radius:8px;padding:11px 13px;line-height:1.8}.modal-actions{display:flex;gap:9px;justify-content:flex-end;margin-top:20px}.promotion-options{display:flex;gap:8px}.promotion-options>button{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:5px;background:#f2f5fb;border:1px solid #dfe7f4;border-radius:11px;padding:12px 7px}.promotion-options>button:hover{border-color:#91b0ed;background:#eaf1ff}.promotion-options .piece{width:65px;max-width:100%}.promotion-options strong{font-size:13.5px;color:#6e87ac}.piece-guide{display:grid;grid-template-columns:1fr 1fr;gap:13px}.piece-guide>div{display:flex;align-items:center;gap:9px;padding:12px 10px;border:1px solid #e6edf6;border-radius:11px;background:#f8fafe}.piece-guide .piece{width:43px;height:49px;flex-shrink:0}.piece-guide strong{font-size:14px;color:#6682a8}.piece-guide p{font-size:13px;color:#879cb8;line-height:1.9;margin-top:3px}.guide-notes{display:flex;flex-direction:column;gap:17px;margin:24px 0}.guide-notes h3{font-size:14px;color:#6782a5;margin-bottom:6px}.guide-notes p{font-size:13.5px;color:#859bb6;line-height:1.9;margin-bottom:5px}.result-hero{position:relative;overflow:hidden;text-align:center;padding:18px 0 22px}.result-emblem{margin:0 auto 22px;height:88px;width:88px;display:grid;place-items:center;background:#edf2fa;box-shadow:0 0 0 9px #f7f9fd;border-radius:50%;color:#849bbc;animation:result-in .6s ease}.result-hero.win .result-emblem{background:#fbf0d9;color:#c8a369;box-shadow:0 0 0 9px #fefaf1}.result-hero.lose .result-emblem{background:#edf1f7;color:#8e9eb6;animation:result-in .8s ease}.result-hero .eyebrow{display:block;font-size:11.5px;letter-spacing:1.4px;margin-top:26px;color:#99aac1}.result-hero h2{font-size:25px;color:#6580a3;letter-spacing:-1px;margin-top:7px}.result-hero.win h2{color:#b3925f}.result-hero>p{font-size:13.5px;color:#889db8;margin-top:9px}.result-players{display:flex;justify-content:center;gap:60px;margin-top:25px}.result-players>div{display:flex;flex-direction:column;align-items:center;gap:7px}.result-players strong{font-size:14px;color:#7890b0}.result-players>div>span:last-child{font-size:12.5px;color:#95a9c4}.result-buttons{display:flex;gap:9px}.result-buttons>button{flex:1;font-size:13.5px}.confetti{position:absolute;inset:0;pointer-events:none}.confetti>i{position:absolute;width:6px;height:10px;background:var(--color);left:calc(var(--i)*4.3%);top:-20px;opacity:0;animation:confetti 2.9s ease-out infinite;animation-delay:calc(var(--i)*.07s);border-radius:2px}.history-list{display:flex;flex-direction:column}.history-row{display:flex;align-items:center;gap:12px;padding:16px 0;border-bottom:1px solid var(--line)}.history-row>div{flex:1;min-width:0}.history-row strong{font-size:14px;color:#6b83a5;display:block}.history-row small{font-size:13px;color:#9aabc1;display:block;margin-top:5px}.history-result{font-size:13px;background:#eff2f7;color:#8b9ab0;border-radius:6px;padding:5px 9px;min-width:45px;text-align:center}.history-result.win{background:#edf3ff;color:#6184c1}.history-result.draw{background:#f8f1e5;color:#ae966f}.crash{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;text-align:center;min-height:100dvh;padding:30px}.crash h1{font-size:24px}.crash p{font-size:14px;color:#8298b6}.page-heading p,.settings-card>p,.difficulty-list small,.setting-note,.moves-empty,.moves-empty small,.tip-card p,.turn-card>p,.chat-empty,.chat-empty small,.chat-message>span,.chat-message time,.modal-intro,.piece-guide p,.guide-notes p,.empty-state p,.history-row small,.bottom-note,.player-info small,.board-tools>button,.casual-label,.form-summary{color:#687a92}.text-button,.room-card-bottom>button{color:#4c6fae}.chat-message>p,.move-pair b,.piece-guide strong,.guide-notes h3{color:#556f92}@keyframes spin{to{transform:rotate(360deg)}}@keyframes ripple{0%{opacity:.7;transform:scale(.6)}to{opacity:0;transform:scale(1.4)}}@keyframes result-in{0%{opacity:0;transform:translateY(10px) scale(.8)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes confetti{0%{opacity:0;transform:translateY(0) rotate(0)}15%{opacity:.7}85%{opacity:.6}to{opacity:0;transform:translateY(320px) rotate(500deg)}}@media(min-width:1500px){.main-content{padding-top:39px}.page-heading{margin-bottom:32px}.game-layout{grid-template-columns:minmax(0,1fr) 310px;gap:28px}.page-heading h1{font-size:36px}.settings-card{padding:26px 23px}.difficulty-list>button{padding:13px}.board-shell{margin-right:23px;margin-left:17px}}@media(max-width:1200px){.sidebar{width:194px;padding-left:14px;padding-right:14px}.main-wrapper{margin-left:194px;width:calc(100% - 194px)}.brand{font-size:22px;gap:5px}.brand img{width:36px}.brand small{font-size:11.5px}.nav-item{font-size:14px;padding:13px 12px;gap:10px}.nav-caption{font-size:11.5px;letter-spacing:1.3px}.main-content{padding:28px 25px 20px}.topbar{padding:0 25px}.game-layout{grid-template-columns:minmax(0,1fr) 260px;gap:17px}.settings-card{padding:20px 16px}.page-heading h1{font-size:28px}.page-heading p{font-size:13px}.guide-link{font-size:12.5px}.board-panel-heading{padding:14px}.casual-label{font-size:12px}.board-mode{font-size:12.5px}.player-bar{margin:0 14px;padding:12px 0;min-height:60px;gap:8px}.avatar{height:31px;width:31px}.avatar>svg{width:19px}.player-info strong{font-size:13.5px}.player-info small{font-size:12px}.board-shell{margin-right:14px;margin-left:7px;padding-left:18px}.board-tools{gap:11px;padding:10px 14px}.board-tools>button{font-size:12px;gap:4px}.board-tools svg{width:13px}.turn-title>h2{font-size:14px}.game-actions>.button{font-size:12px;padding:8px 5px}.settings-card h2{font-size:18px}.difficulty-list strong{font-size:13px}.color-choice>button{font-size:12px}.room-grid{gap:12px}.lobby-panel{padding:23px}.captured-pieces .piece{width:17px;height:20px}.sidebar-art>span{font-size:12.5px}}@media(max-width:1000px){.sidebar{width:174px;padding-left:10px;padding-right:10px}.main-wrapper{margin-left:174px;width:calc(100% - 174px)}.brand{font-size:20px;gap:4px}.brand img{width:32px}.brand small{font-size:11px}.nav-caption{font-size:11px;letter-spacing:1px;margin-left:10px}.nav-item{font-size:13.5px;gap:9px;padding:13px 11px}.nav-item svg{width:17px}.sidebar-art{padding:8px 4px}.sidebar-art>.piece{width:57px;margin-left:-9px}.sidebar-art>span{font-size:12px}.sidebar-bottom>.nav-item{font-size:13px;gap:6px}.main-content{padding:25px 21px 20px}.topbar{height:70px;padding:0 21px}.top-actions{gap:9px}.breadcrumb{font-size:12.5px;gap:6px}.breadcrumb strong{font-size:13px}.connection{font-size:12px}.profile-chip{font-size:12.5px;padding:6px 8px;max-width:120px;overflow:hidden;white-space:nowrap}.game-layout{grid-template-columns:1fr;gap:18px}.game-side{display:grid;grid-template-columns:1fr 1fr;gap:15px;align-items:start}.settings-card,.turn-card{grid-row:span 2}.moves-card,.chat-card,.tip-card{grid-column:2}.game-side .tip-card{min-height:143px}.game-side .moves-list{height:150px}.page-heading{margin-bottom:22px;align-items:start}.page-heading h1{font-size:28px}.page-heading .guide-link{display:none}.board-panel-heading{padding:16px 17px}.board-mode{font-size:13.5px}.casual-label{font-size:12.5px}.player-bar{margin:0 17px;padding:13px 0;min-height:64px}.player-info strong{font-size:14px}.player-info small{font-size:12.5px}.board-shell{margin-right:17px;margin-left:10px}.board-tools{padding:11px 17px;gap:18px}.board-tools>button{font-size:12.5px}.board-tools svg{width:15px}.captured-pieces .piece{width:20px}.lobby-toolbar h2{font-size:17px}.lobby-toolbar p{font-size:12.5px}.lobby-toolbar .button{font-size:13px}.lobby-search{gap:8px}.lobby-search .button{font-size:12.5px}.room-grid{grid-template-columns:1fr}.bottom-note>span:last-child{display:none}}@media(max-width:700px){.sidebar{inset:auto 0 0;width:100%;height:65px;padding:0 13px;background:#172c45;display:block;border-top:1px solid #2f4360;box-shadow:0 -5px 20px #102a4812;z-index:40}.sidebar>.brand,.nav-caption,.sidebar-bottom{display:none}.sidebar nav{flex-direction:row;align-items:center;justify-content:space-around;height:100%;gap:8px}.sidebar .nav-item{width:auto;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;height:54px;padding:8px 4px;font-size:12.5px;position:relative;border-radius:8px}.sidebar .nav-item>span{flex:0}.sidebar .nav-item>svg{width:18px;height:18px}.sidebar .nav-item>svg:last-child:not(:first-child){display:none}.sidebar .nav-item.active{box-shadow:none;background:#2b4362}.sidebar .nav-item>b{position:absolute;top:5px;right:20%;font-size:11.5px;padding:0 4px}.main-wrapper{margin-left:0;width:100%;padding-bottom:65px}.topbar{height:64px;padding:0 18px;gap:10px}.breadcrumb{font-size:0;gap:0}.breadcrumb:before{content:"우기체스";font-size:21px;color:#283e5b;font-weight:800;letter-spacing:-.7px}.breadcrumb>svg,.breadcrumb>strong{display:none}.top-actions{gap:9px}.connection{font-size:12px}.profile-chip{font-size:12.5px;padding:5px 8px;max-width:120px}.profile-chip>svg{width:13px}.top-actions>.icon-button{width:27px}.top-actions>.icon-button>svg{width:17px}.main-content{padding:25px 15px 20px}.page-heading{margin-bottom:22px}.page-heading .eyebrow{font-size:11.5px;letter-spacing:1.3px}.page-heading h1{font-size:28px;letter-spacing:-1.3px;margin-top:9px}.page-heading p{font-size:13px;max-width:330px;line-height:1.9;margin-top:8px}.game-layout{gap:16px}.board-panel{border-radius:12px}.board-panel-heading{padding:12px 13px;gap:5px}.board-mode{font-size:12.5px;gap:5px}.board-mode svg{width:13px}.board-mode>span:last-child{font-size:12px}.casual-label{font-size:12px;gap:4px}.casual-label svg{width:11px}.player-bar{margin:0 13px;padding:10px 0;min-height:55px;gap:8px}.avatar{width:30px;height:30px;border-radius:9px}.avatar svg{width:18px;height:18px}.player-info strong{font-size:13px}.player-info small{font-size:12px}.player-state{font-size:11.5px}.player-state.turn{font-size:12px;padding:3px 6px;gap:4px}.captured-pieces{max-width:33%;margin-left:0}.captured-pieces .piece{width:16px;height:18px;margin-right:-5px}.board-shell{margin-left:4px;margin-right:12px;padding-left:17px;padding-bottom:20px}.chess-board{border-width:3px}.rank-labels{width:15px;top:3px;bottom:23px}.rank-labels>span{font-size:12px}.file-labels{left:20px;right:3px;height:20px}.file-labels>span{font-size:12px}.square .piece{width:93%;height:93%}.capture-target{border-width:3px}.check-marker{top:1px;right:1px;font-size:12px;height:12px;width:12px}.board-tools{padding:10px 13px;gap:12px}.board-tools>button{font-size:12px;gap:4px}.board-tools svg{width:13px}.game-side{display:flex;align-items:stretch;gap:14px}.settings-card,.turn-card{padding:22px 19px}.settings-card h2{font-size:21px}.settings-card>p{font-size:13.5px}.settings-card fieldset{margin-top:22px}.settings-card legend{font-size:13.5px}.difficulty-list{gap:8px}.difficulty-list>button{padding:12px}.difficulty-list strong{font-size:14px}.difficulty-list small{font-size:13px}.level-icon{width:35px;height:35px;font-size:16px}.color-choice>button{font-size:13px;padding:12px 7px;min-height:40px}.setting-note{font-size:12.5px}.game-side .moves-list{height:155px}.tip-card h3{font-size:14px}.tip-card p{font-size:13.5px;max-width:75%}.tip-card>span{font-size:13.5px}.mini-centre{grid-template-columns:repeat(4,12px);grid-template-rows:repeat(4,12px)}.turn-title h2{font-size:17px}.turn-card>p{font-size:13.5px}.turn-card .card-eyebrow{font-size:12px}.game-actions>.button{font-size:13.5px;min-height:39px;padding:10px 7px}.draw-actions .text-button{font-size:13px}.card-heading{padding:13px 15px}.card-heading h3{font-size:14px}.card-heading>span{font-size:13px}.chat-messages{height:190px}.chat-empty{font-size:13.5px}.chat-empty small{font-size:12.5px}.chat-message>p{font-size:14px}.chat-message>span{font-size:13px}.chat-form input{font-size:16px;height:40px}.chat-form input::placeholder{font-size:13.5px}.chat-form button{width:38px}.moves-empty{font-size:13.5px}.moves-empty small{font-size:13px}.move-columns{font-size:13px;padding:8px 18px}.move-pair{padding:9px 18px;font-size:13.5px}.move-pair b{font-size:14px}.bottom-note{font-size:12px;line-height:1.8;margin-top:20px}.bottom-note>svg{width:13px}.lobby-panel{padding:20px 16px;border-radius:12px;min-height:470px}.lobby-toolbar{gap:12px}.lobby-toolbar h2{font-size:18px}.lobby-toolbar p{font-size:12.5px;max-width:205px;line-height:1.8}.lobby-toolbar .button{font-size:13px;padding:9px 11px;white-space:nowrap}.lobby-toolbar .button>svg{width:14px}.lobby-search{flex-wrap:wrap;margin:20px 0;gap:10px}.lobby-search>label{width:100%;flex:auto}.lobby-search input{font-size:16px}.lobby-search input::placeholder{font-size:13px}.lobby-search .button{font-size:13px;width:100%;min-height:35px}.empty-state{min-height:230px;padding:25px 4px;gap:10px}.empty-state h3{font-size:14px}.empty-state p{font-size:13px;line-height:1.9}.empty-piece{height:66px;width:70px}.empty-piece .piece{width:56px;height:56px}.room-card h3{font-size:15px}.modal{padding:22px;max-width:calc(100vw - 22px);max-height:calc(100dvh - 28px);border-radius:15px}.modal-heading h2{font-size:19px}.modal-intro{font-size:13.5px}.setup-form input{font-size:16px}.piece-guide{grid-template-columns:1fr;gap:10px}.piece-guide>div{padding:9px 12px;gap:13px}.piece-guide .piece{width:41px;height:45px}.piece-guide strong{font-size:14px}.piece-guide p,.guide-notes p{font-size:13.5px}.history-row{gap:10px}.history-row small{font-size:12.5px;line-height:1.7}.result-hero h2{font-size:23px}.result-hero .eyebrow{font-size:11px}.result-buttons .button{font-size:13px}.promotion-options .piece{width:55px}.connection-banner,.notice{font-size:13px;padding:10px 12px}.connection-banner button{font-size:13px}}@media(max-width:360px){.profile-chip{display:none}.page-heading h1{font-size:26px}.main-content{padding-left:11px;padding-right:11px}.casual-label{font-size:11.5px}.board-tools{gap:9px}.board-tools>button{font-size:11.5px}.board-mode{font-size:12px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.confetti{display:none}.thinking-spinner{border-color:#90a9d3}}
