@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--paper:#f7f6f2;--ink:#263d35;--muted:#7d857d;--green:#2e604b;--line:#e6e7df;--orange:#ce9d68;--light-square:#eeedda;--dark-square:#7c9c78}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.55 Manrope,Arial,sans-serif}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:default;opacity:.48}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #d2a66e;outline-offset:3px}button{transition:background .15s,transform .15s}a{color:inherit;text-decoration:none}[hidden]{display:none!important}.sidebar{position:fixed;inset:0 auto 0 0;width:224px;background:#203c35;color:#eff3e9;display:flex;flex-direction:column;padding:32px 20px;z-index:3}.brand{display:flex;gap:12px;align-items:center;font-size:21px;letter-spacing:-.6px}.brand b{font-weight:400;color:#b3ccad}.brand small{font-size:10px;letter-spacing:1px;display:block;color:#a0b6ac;margin-top:2px}.brand-mark{background:#f0efdf;color:#254735;border-radius:11px;font-size:25px;font-weight:800;width:42px;height:45px;display:grid;place-items:center;position:relative}.brand-mark span{position:absolute;right:3px;bottom:0;color:#658968;font-size:21px}.nav-label{font-size:10px;letter-spacing:1.7px;color:#90aa9c;margin:45px 15px 13px}.nav-item{display:flex;align-items:center;gap:14px;padding:13px 15px;border:0;border-radius:9px;width:100%;background:transparent;color:#c9d7ca;text-align:left;margin-bottom:5px}.nav-item span{font-size:23px;width:25px;line-height:1}.nav-item i{font-size:10px;margin-left:auto;font-style:normal;color:#9db298}.nav-item.active{background:#36594a;color:#f4f4df}.nav-item:hover:not(:disabled){background:#304e43}.future-label{margin-top:33px}.future{opacity:.6!important}.sidebar-note{margin:auto 9px 30px;padding-top:45px;font-size:12px;color:#a7bdae}.sidebar-note strong{display:block;color:#dae6d5;font-size:13px;margin-top:12px}.sidebar-note p{line-height:1.9}.tiny-star{font-size:29px;color:#b7cfa5}.sidebar-bottom{display:flex;gap:10px;align-items:center;border-top:1px solid #3a5548;padding-top:20px;font-size:11px}.sidebar-bottom small{display:block;color:#90aa9c;font-size:10px}.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#526b52;color:#ecf1da}.app{margin-left:224px}.topbar{height:76px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 38px}.breadcrumbs{font-size:12px;color:#647466}.breadcrumbs span{padding:0 12px;color:#bec5b9}.version{font-size:11px;color:#7a8577;display:flex;align-items:center;gap:7px}.version i{width:6px;height:6px;background:#739b66;border-radius:50%}main{max-width:1360px;margin:auto;padding:32px 38px 18px}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;gap:15px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.8px;color:#77906f;margin:0 0 8px}h1{font-size:39px;line-height:1.2;letter-spacing:-1.9px;margin:0;font-weight:800}h1 span{color:#9bac83}.intro{font-size:12px;color:#7b8276;margin:10px 0 0}h2{font-size:21px;letter-spacing:-.7px;line-height:1.3;margin:0}h3{font-size:16px;letter-spacing:-.4px;margin:3px 0 5px}.primary,.secondary{border-radius:8px;padding:11px 16px;font-size:12px;font-weight:700;display:inline-flex;justify-content:center;align-items:center;gap:10px;min-height:42px}.primary{background:var(--green);color:#fff;border:1px solid var(--green)}.primary:hover{background:#254d3d}.secondary{border:1px solid #daddd1;background:transparent;color:#425b49}.secondary:hover{background:#eef0e7}.compact{font-size:11px}.wide{width:100%;justify-content:space-between;margin-top:21px;padding:14px 18px}.game-layout{display:grid;grid-template-columns:minmax(0,1fr) 342px;gap:30px;align-items:start}.play-area{min-width:0;max-width:700px;width:100%}.player-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.player-info{display:flex;gap:10px;align-items:center;min-width:0}.player-info strong{font-size:12px;display:block;overflow-wrap:anywhere}.player-info small{display:block;font-size:10px;color:#868c80;margin-top:2px}.player-icon{height:36px;width:36px;flex-shrink:0;border-radius:9px;display:grid;place-items:center;font-size:28px;line-height:1}.dark-piece{color:#e0e4d8;background:#35493d}.light-piece{color:#688464;background:#e8ecdf}.clock{font-size:24px;font-weight:700;line-height:1;background:#e9ece3;padding:11px 17px;min-width:107px;text-align:center;border-radius:7px;font-variant-numeric:tabular-nums;color:#5f705c;flex-shrink:0}.clock.running{background:#2f5342;color:#f2f3e7}.clock.low{background:#a25342;color:#fff}.board-shell{border-radius:5px;overflow:hidden;box-shadow:0 10px 24px #1d302315}.board{display:grid;grid-template-columns:repeat(8,1fr);aspect-ratio:1;width:100%}.sq{border:0;border-radius:0;aspect-ratio:1;display:grid;place-items:center;position:relative;padding:0;background:var(--light-square);color:#4b6950;user-select:none}.sq.dark{background:var(--dark-square);color:#f0edda}.sq.last{background:#c7ce91}.sq.dark.last{background:#a8b675}.sq.selected{background:#e6bd73}.sq.check{background:#c97a64}.sq .piece{font-family:"DejaVu Sans","Segoe UI Symbol","Arial Unicode MS",serif;font-size:clamp(27px,4.2vw,58px);line-height:1;position:relative;z-index:1}.piece.w{color:#fffbed;text-shadow:0 1px 2px #243b2b,1px 0 #3e4a3e,-1px 0 #3e4a3e,0 -1px #3e4a3e}.piece.b{color:#293f35;text-shadow:0 1px 1px #f0edda88}.coord{position:absolute;font:700 10px/1 Arial,sans-serif;z-index:2}.coord.rank{left:4px;top:4px}.coord.file{right:4px;bottom:3px}.sq.target:after{content:"";position:absolute;width:25%;height:25%;background:#23392f38;border-radius:50%;z-index:2}.sq.target:has(.piece):after{width:86%;height:86%;border:5px solid #23392f55;background:transparent}.bottom-player{margin-top:14px;margin-bottom:0}.board-tools{display:flex;justify-content:space-between;align-items:center;gap:5px;margin-top:14px;border-top:1px solid var(--line);padding-top:10px}.board-tools>div{display:flex;gap:10px}.tool{border:0;background:transparent;color:#6d7d67;padding:5px 6px;min-height:32px;font-size:20px;line-height:1.2}.tool span{font-size:10px;vertical-align:middle}.tool:hover{background:#e9ede1;border-radius:5px}#boardHint{font-size:10px;color:#8c9584;text-align:right}.connection-line{display:flex;align-items:center;gap:6px;font-size:10px;color:#8a9482;margin-top:12px}.connection-line>span:first-child{height:5px;width:5px;background:#a1ac96;border-radius:50%}.connection-line>span.online{background:#63965c}.game-panel{border:1px solid var(--line);border-radius:12px;background:#fff;padding:26px 24px}.panel-title p{font-size:11px;color:#8c9488;margin:8px 0 22px}.mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);padding:4px;background:#f1f3ed;border-radius:7px;gap:2px}.mode-tabs button{border:0;background:transparent;border-radius:5px;padding:8px 0;color:#798573;font-size:11px}.mode-tabs button.selected{background:#fff;color:#365b43;box-shadow:0 2px 5px #22332410;font-weight:700}.mode-description{font-size:11px;color:#8b9384;line-height:1.65;min-height:36px;margin:15px 0 19px}.field-label{display:block;font-size:11px;font-weight:700;margin:18px 0 9px}input,select{color:#38513e;background:#fafbf7;border:1px solid #e2e6da;border-radius:7px;padding:10px 12px;min-height:40px;width:100%;font-size:12px}input::placeholder{color:#a0aa95}.time-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:7px}.time-grid button{border:1px solid #e3e7da;background:#fff;border-radius:7px;color:#52634c;min-height:64px;padding:8px}.time-grid b{display:block;font-size:19px;font-weight:600;letter-spacing:1px}.time-grid small{font-size:10px;color:#919984}.time-grid button.selected{border-color:#77946b;background:#f0f5e9}.custom-time{display:flex;gap:10px;margin-top:12px}.custom-time label{width:50%;font-size:10px;color:#859079}.custom-time select{font-size:11px;padding:7px 9px;min-height:33px;margin-top:5px}.color-picker{display:flex;gap:6px}.color-picker button{flex:1;font-size:11px;border:1px solid #e3e7da;border-radius:6px;background:#fff;padding:9px 4px;color:#758367}.color-picker button.selected{border-color:#8ea67b;background:#f3f6eb;color:#3c5e43}.setup-note{font-size:10px;color:#9ba38f;text-align:center;line-height:1.8;margin:16px 0 0}.field-note{font-size:10px;color:#8b9384}.learning-teaser{display:flex;gap:18px;align-items:center;padding:22px 0;border-top:1px solid var(--line);margin-top:30px}.learning-teaser p{font-size:11px;color:#858e7b;margin:0}.learning-teaser .eyebrow{font-size:9px}.learning-teaser .secondary{margin-left:auto;white-space:nowrap;font-size:11px}.teaser-icon{font-size:43px;line-height:1;color:#8b9f77;background:#e9edde;border-radius:13px;padding:12px}.learning-teaser h3{font-size:14px}.notice{border:1px solid #e6cf9d;color:#715a30;background:#fbf1dc;padding:12px 16px;border-radius:8px;margin-bottom:18px;font-size:12px;white-space:pre-line}footer{display:flex;justify-content:space-between;gap:14px;border-top:1px solid var(--line);padding-top:18px;margin-top:6px;font-size:9px;color:#98a18e}.room-heading{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:#88977b;margin-bottom:20px}.small-pill{background:#eef3e7;color:#638054;padding:4px 10px;border-radius:20px;font-size:10px}#gameStatus{font-size:22px}.room-subtitle{font-size:11px;color:#89957d;min-height:18px;margin:8px 0 20px}.invite-block{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:20px}.invite-input{display:flex;gap:6px}.invite-input input{font-size:10px;padding:8px;min-width:0}.invite-input button{padding:5px 12px}.invite-block p{font-size:10px;color:#8c977f;margin-bottom:0}.notation-title{display:flex;justify-content:space-between;align-items:center;font-size:11px;margin-top:22px}.text-button{border:0;background:transparent;color:#7f9270;font-size:11px;padding:5px}.move-list{height:230px;overflow-y:auto;margin-top:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);scrollbar-width:thin}.empty-moves{font-size:11px;color:#a2ac95;text-align:center;margin-top:70px}.move-row{display:grid;grid-template-columns:30px 1fr 1fr;align-items:center;padding:4px 5px;font-size:12px}.move-row:nth-child(odd){background:#f5f7ef}.move-row>span{color:#9ca88d;font-size:10px}.move-row button{border:0;background:transparent;text-align:left;padding:5px 8px;color:#3f593d;border-radius:4px;font-family:inherit}.move-row button.selected{background:#dce7cb}.replay-controls{display:flex;justify-content:center;gap:14px;margin-top:8px}.game-actions{display:flex;gap:8px;border-top:1px solid var(--line);margin-top:16px;padding-top:16px}.game-actions>button{flex:1;font-size:11px}.return-live{width:100%;border:0;background:#eaf0df;color:#5f7a4a;font-size:11px;border-radius:6px;padding:9px}.draw-offer{background:#f4efd9;padding:10px;border-radius:8px;font-size:11px}.draw-offer button{width:100%;margin-top:8px}dialog{border:1px solid #e0e6d5;background:#fbfcf7;color:var(--ink);border-radius:16px;padding:30px;max-width:660px;width:calc(100% - 30px);box-shadow:0 20px 80px #18332035}dialog::backdrop{background:#172b2677;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:start;gap:16px}.dialog-head h2{font-size:24px}.dialog-head .tool{font-size:26px}.dialog-foot{font-size:11px;color:#8b977c;line-height:1.8;margin:20px 0 0}.lesson-tabs{display:flex;gap:6px;flex-wrap:wrap;margin:24px 0}.lesson-tabs button{font-size:11px;background:#f0f3e8;color:#657b55;border:1px solid #dce5d1;border-radius:6px;padding:8px 10px}.lesson-tabs button.selected{background:#355b43;color:#fff;border-color:#355b43}.lesson-content{font-size:14px;line-height:1.8}.lesson-content h3{font-size:19px}.lesson-content li{margin-bottom:9px}.promotion-choices{display:flex;gap:10px}.promotion-choices button{width:25%;font-size:42px;border:1px solid #dce5d1;border-radius:9px;background:#f0f3e8;color:#304b38;padding:10px 0}.promotion-choices small{display:block;font:11px Manrope,Arial,sans-serif}.confirm-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:25px}#confirmDialog{max-width:440px}#historyContent{max-height:400px;overflow-y:auto;margin-top:20px}.history-row{width:100%;display:flex;justify-content:space-between;text-align:left;gap:12px;align-items:center;padding:12px;border:0;border-bottom:1px solid var(--line);background:transparent;color:#3e583b;font-size:12px}.history-row small{font-size:10px;color:#8a987c;display:block;margin-top:3px}
@media(min-width:1600px){.sq .piece{font-size:62px}}@media(max-width:1250px){.sidebar{width:195px;padding:28px 15px}.app{margin-left:195px}main{padding:26px 25px 16px}.topbar{padding:0 25px}.game-layout{grid-template-columns:minmax(0,1fr) 310px;gap:22px}.game-panel{padding:22px 20px}.sq .piece{font-size:clamp(25px,4.3vw,53px)}h1{font-size:34px}}@media(max-width:1000px){.sidebar{width:155px;padding:25px 12px}.brand{font-size:16px;gap:8px}.brand-mark{width:33px;height:37px;font-size:22px}.brand small{font-size:8px;letter-spacing:.3px}.app{margin-left:155px}.nav-item{padding:11px 8px;font-size:12px;gap:8px}.nav-item i{display:none}.nav-label{font-size:8px;margin-left:8px;letter-spacing:1px}.sidebar-note{font-size:10px;margin-left:5px}.sidebar-note strong{font-size:11px}.sidebar-bottom{font-size:9px;gap:6px}.sidebar-bottom small{font-size:8px}.avatar{width:25px;height:25px}.game-layout{grid-template-columns:minmax(0,1fr) 285px;gap:17px}.game-panel{padding:20px 16px}.clock{font-size:20px;padding:10px 12px;min-width:86px}.sq .piece{font-size:clamp(22px,4vw,42px)}.player-info small{font-size:9px}.player-icon{width:30px;height:30px;font-size:24px}main{padding:22px 20px}h1{font-size:30px}.intro{font-size:11px}.page-heading .compact{font-size:10px;padding:8px 10px}.eyebrow{font-size:9px}.board-tools{flex-wrap:wrap}#boardHint{font-size:9px}.learning-teaser{gap:12px}.learning-teaser .secondary{font-size:10px}.learning-teaser h3{font-size:12px}}
@media(max-width:820px){.sidebar{position:static;width:100%;height:auto;padding:14px 20px;display:flex;flex-direction:row;align-items:center;gap:20px}.brand{font-size:19px}.brand small{display:none}.sidebar>nav{display:flex;margin-left:auto;gap:4px}.sidebar>.nav-label,.sidebar-note,.sidebar-bottom,.future-label,.future{display:none}.nav-item{width:auto;margin:0;padding:9px 12px}.nav-item span{font-size:20px;width:auto}.nav-item.active{background:#3a5b49}.app{margin-left:0}.topbar{height:49px;padding:0 20px}.game-layout{grid-template-columns:minmax(0,1fr) 290px;gap:20px}main{padding:25px 20px}.sq .piece{font-size:clamp(24px,5vw,43px)}.learning-teaser .secondary{padding:8px}.teaser-icon{display:none}footer{font-size:8px}.player-info small{max-width:155px}.page-heading{margin-bottom:23px}}@media(max-width:660px){.sidebar{gap:10px;padding:12px 14px}.sidebar>nav{gap:1px}.nav-item{font-size:0;padding:10px}.nav-item span{font-size:24px}.nav-item.active{font-size:12px}.topbar{padding:0 16px}.breadcrumbs,.version{font-size:10px}.page-heading{align-items:start}.page-heading .compact{min-height:35px;padding:7px 9px}.eyebrow{font-size:8px;letter-spacing:1.2px}h1{font-size:31px}.intro{font-size:10px;max-width:240px}main{padding:23px 14px 16px}.game-layout{grid-template-columns:1fr;gap:22px}.play-area{max-width:550px;margin:auto}.sq .piece{font-size:clamp(28px,9vw,53px)}.game-panel{padding:23px}.clock{font-size:23px;min-width:98px}.player-info small{font-size:10px;max-width:none}.board-tools{flex-wrap:nowrap}.learning-teaser{display:block;margin-top:24px;padding:23px 4px}.learning-teaser .secondary{margin-top:15px}.learning-teaser h3{font-size:15px}.learning-teaser p{font-size:11px}footer{display:block;font-size:9px}footer span{display:block;margin-bottom:5px}.time-grid{grid-template-columns:repeat(4,1fr)}.time-grid b{font-size:16px}.time-grid button{min-height:58px}.mode-description{min-height:0}.game-panel .panel-title p{margin-bottom:18px}.coord{font-size:9px}.move-list{height:200px}dialog{padding:22px}.dialog-head h2{font-size:21px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}


.waiting-actions{padding:15px 0;border-bottom:1px solid var(--line);margin-bottom:15px}
.waiting-actions p{font-size:12px;line-height:1.8;color:#687b60;margin:0}
.waiting-actions strong{color:#38523e}
.waiting-actions .wide{margin-top:12px;justify-content:center}