:root{--font:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--mono:ui-monospace, "Cascadia Mono", "Consolas", "Menlo", monospace;--bg:#302e2b;--bg-2:#242220;--panel:#262421;--panel-2:#302e2b;--panel-3:#3a3733;--strip:#21201d;--text:#fff;--text-dim:#bababa;--text-faint:#a8a49e;--border:#413e39;--accent:#81b64c;--accent-2:#9ecb67;--accent-text:#14210b;--danger:#cc5c5c;--danger-2:#e07575;--warn:#e0b341;--blue:#5c8bb0;--shadow:0 4px 20px #00000059;--radius:8px;--radius-sm:6px;--sq-light:#eeeed2;--sq-dark:#769656;--hl-last:#f0d65073;--hl-selected:#14551e80;--hl-premove:#e664646b;--hl-mark:#14551e66;--hl-check:radial-gradient(ellipse at center, #e70000d9 0%, #e700008c 45%, #e7000000 72%);--dot:#14551e52;--ring:#14551e52;--arrow:#14551ecc;--board-px:min(76vh, 640px, calc(100vw - 24px));--board-size:var(--board-px);--sidebar-w:208px;--sidebar-w-collapsed:64px;--sidepanel-w:380px;--evalbar-w:30px;--evalbar-gap:8px;--bar-total:0px}html[data-appearance=light]{--bg:#f0ede6;--bg-2:#e8e4db;--panel:#fff;--panel-2:#f4f2ec;--panel-3:#e8e5dd;--strip:#f7f5ef;--text:#2b2926;--text-dim:#6b6761;--text-faint:#6b655e;--border:#d9d5cc;--accent:#5b8a35;--accent-2:#4f7d2c;--accent-text:#fff;--danger:#c33;--danger-2:#d55;--shadow:0 4px 18px #00000024}html[data-board=classic]{--sq-light:#f0d9b5;--sq-dark:#b58863}html[data-board=blue]{--sq-light:#dee3e6;--sq-dark:#8ca2ad}html[data-board=green]{--sq-light:#eeeed2;--sq-dark:#769656}html[data-board=walnut]{--sq-light:#e4c9a8;--sq-dark:#7d5a43}html[data-board=midnight]{--sq-light:#9fa9b8;--sq-dark:#4a5568}html[data-board=ice]{--sq-light:#e8f1f5;--sq-dark:#7fb2c9}*{box-sizing:border-box}html,body{margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;overscroll-behavior:none;min-height:100dvh}#root{min-height:100vh;flex-direction:row;min-height:100dvh;display:flex}.shell{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}a{color:var(--accent-2);text-decoration:none}a:hover{text-decoration:underline}img{-webkit-user-drag:none;-webkit-user-select:none;user-select:none}button{font-family:inherit}:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}.topnav{background:var(--panel);border-bottom:1px solid var(--border);z-index:50;align-items:center;gap:14px;padding:8px 16px;display:flex;position:sticky;top:0}.topnav .logo{color:var(--text);letter-spacing:.4px;align-items:center;gap:8px;font-size:18px;font-weight:800;display:flex}.topnav .logo:hover{text-decoration:none}.topnav .logo img{width:26px;height:26px}.topnav nav{flex:1;gap:4px;display:flex}.topnav nav a{color:var(--text-dim);border-radius:var(--radius-sm);padding:7px 11px;font-size:14px;font-weight:500}.topnav nav a:hover{background:var(--panel-2);color:var(--text);text-decoration:none}.topnav nav a.active{color:var(--text);background:var(--panel-2)}.nav-chip{background:var(--panel-2);border:1px solid var(--border);cursor:pointer;color:var(--text);border-radius:999px;align-items:center;gap:8px;padding:4px 12px 4px 5px;font-size:13.5px;font-weight:600;display:flex}.nav-chip:hover{background:var(--panel-3)}.nav-chip .rating{color:var(--text-dim);font-size:12.5px;font-weight:500}.sidenav{width:var(--sidebar-w);height:100vh;background:var(--panel);border-right:1px solid var(--border);z-index:55;flex-direction:column;flex:none;align-self:flex-start;gap:3px;height:100dvh;padding:10px 8px;transition:width .15s;display:none;position:sticky;top:0;overflow-y:auto}.sidenav .sn-logo{color:var(--text);letter-spacing:.3px;align-items:center;gap:10px;padding:6px 8px 14px;font-size:17px;font-weight:800;display:flex}.sidenav .sn-logo img{flex:none;width:26px;height:26px}.sidenav .sn-logo .sn-label{white-space:nowrap}.sidenav .sn-item{border-radius:var(--radius-sm);color:var(--text-dim);white-space:nowrap;align-items:center;gap:11px;padding:9px 10px;font-size:14px;font-weight:600;transition:background-color .15s,color .15s;display:flex}.sidenav .sn-item:hover{background:var(--panel-2);color:var(--text);text-decoration:none}.sidenav .sn-item.active{background:var(--panel-2);color:var(--text);box-shadow:inset 3px 0 0 var(--accent)}.sidenav .sn-icon{text-align:center;flex:none;width:22px;font-size:16px}.sidenav .sn-spacer{flex:1}.sidenav .nav-chip{border-radius:var(--radius-sm);justify-content:flex-start;padding:5px 8px;overflow:hidden}.sidenav .nav-chip .rating,.sidenav .nav-chip span:not(.rating){white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.sidenav .sn-toggle{color:var(--text-faint);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:0;padding:8px;font-size:14px;transition:background-color .15s,color .15s}.sidenav .sn-toggle:hover{background:var(--panel-2);color:var(--text)}html[data-nav=collapsed] .sidenav{width:var(--sidebar-w-collapsed);padding:10px 6px}html[data-nav=collapsed] .sidenav .sn-label,html[data-nav=collapsed] .sidenav .nav-chip .rating,html[data-nav=collapsed] .sidenav .nav-chip span:not(.rating){display:none}html[data-nav=collapsed] .sidenav .sn-item{justify-content:center;padding:9px 0}html[data-nav=collapsed] .sidenav .sn-logo{justify-content:center;padding:6px 0 14px}html[data-nav=collapsed] .sidenav .nav-chip{justify-content:center;padding:5px}.tabbar{background:var(--panel);border-top:1px solid var(--border);z-index:60;padding-bottom:env(safe-area-inset-bottom,0px);display:none;position:fixed;bottom:0;left:0;right:0}.tabbar a{color:var(--text-dim);flex-direction:column;flex:1;align-items:center;gap:2px;min-width:0;padding:8px 2px 6px;font-size:10.5px;font-weight:600;transition:color .15s;display:flex}.tabbar a:hover{text-decoration:none}.tabbar a.active{color:var(--accent-2)}.tabbar .tb-icon{font-size:17px;line-height:1}.app-main{flex:1;width:100%;min-width:0;max-width:1360px;margin:0 auto;padding:18px 16px 40px}.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.card h2,.card h3{margin-top:0}.btn{background:var(--panel-2);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;justify-content:center;align-items:center;gap:8px;min-height:38px;padding:9px 16px;font-size:14.5px;font-weight:600;transition:background-color .15s,border-color .15s,color .15s,transform 60ms;display:inline-flex}.btn:hover{background:var(--panel-3)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--accent-text);border-color:#0000}.btn-primary:hover{background:var(--accent-2)}.btn-danger{border-color:var(--danger);color:var(--danger-2);background:0 0}.btn-danger:hover{background:#cc3c3c24}.btn-ghost{color:var(--text-dim);background:0 0;border-color:#0000}.btn-ghost:hover{background:var(--panel-2);color:var(--text)}.btn-sm{min-height:30px;padding:5px 10px;font-size:13px}.btn-lg{min-height:48px;padding:13px 22px;font-size:16.5px}.btn-block{width:100%}.input,select.input,textarea.input{background:var(--bg-2);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;padding:9px 12px;font-size:14.5px}.input:focus{border-color:var(--accent);outline:none}.input::placeholder{color:var(--text-faint)}.field{flex-direction:column;gap:6px;margin-bottom:14px;display:flex}.field label{color:var(--text-dim);font-size:13.5px;font-weight:600}.hint{color:var(--text-faint);font-size:12.5px}.error-text{color:var(--danger-2);font-size:13px}.seg{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);gap:3px;padding:3px;display:inline-flex}.seg button{color:var(--text-dim);cursor:pointer;background:0 0;border:0;border-radius:4px;padding:7px 14px;font-size:14px;font-weight:600;transition:background-color .15s,color .15s}.seg button.active{background:var(--panel-3);color:var(--text)}.toggle{justify-content:space-between;align-items:center;gap:12px;padding:10px 0;display:flex}.toggle .switch{background:var(--panel-3);cursor:pointer;border:1px solid var(--border);border-radius:999px;flex:none;width:42px;height:24px;transition:background .15s;position:relative}.toggle .switch:after{content:"";background:var(--text-dim);border-radius:50%;width:18px;height:18px;transition:transform .15s,background .15s;position:absolute;top:2px;left:2px}.toggle .switch.on{background:var(--accent);border-color:#0000}.toggle .switch.on:after{background:#fff;transform:translate(18px)}.chip{background:var(--panel-2);border:1px solid var(--border);border-radius:999px;align-items:center;gap:6px;padding:4px 12px;font-size:13px;font-weight:600;display:inline-flex}.modal-overlay{z-index:200;background:#0009;justify-content:center;align-items:center;padding:16px;animation:.15s fadeIn;display:flex;position:fixed;inset:0}.modal{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:440px;max-height:88vh;padding:20px;animation:.16s popIn;overflow:auto}.modal h3{margin:0 0 12px;font-size:18px}.modal-actions{justify-content:flex-end;gap:10px;margin-top:16px;display:flex}.toast-stack{z-index:300;flex-direction:column;gap:8px;max-width:min(360px,100vw - 32px);display:flex;position:fixed;bottom:78px;right:18px}@media (min-width:1024px){.toast-stack{bottom:18px}}.toast{background:var(--panel-2);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius-sm);box-shadow:var(--shadow);padding:11px 14px;font-size:14px;animation:.2s slideUp}.toast.error{border-left-color:var(--danger)}.toast.info{border-left-color:var(--blue)}.home-grid{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:16px;display:grid}@media (max-width:880px){.home-grid{grid-template-columns:1fr}}.tc-section{margin-bottom:14px}.tc-section .tc-label{text-transform:uppercase;letter-spacing:.8px;color:var(--text-faint);align-items:center;gap:8px;margin-bottom:8px;font-size:13px;font-weight:700;display:flex}.tc-row{flex-wrap:wrap;gap:8px;display:flex}.tc-btn{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;color:var(--text);flex-direction:column;align-items:center;gap:2px;min-width:86px;padding:10px 16px;transition:background .15s,border-color .15s;display:flex}.tc-btn:hover{background:var(--panel-3);border-color:var(--accent)}.tc-btn .tc-time{font-size:17px;font-weight:800}.tc-btn .tc-name{color:var(--text-faint);font-size:11.5px}.tc-btn.selected{border-color:var(--accent);background:var(--panel-3)}.home-actions{flex-direction:column;gap:10px;display:flex}.action-card{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;color:var(--text);text-align:left;align-items:center;gap:14px;width:100%;padding:14px 16px;transition:border-color .15s,transform .1s;display:flex}.action-card:hover{border-color:var(--accent);text-decoration:none;transform:translateY(-1px)}.action-card .ac-icon{background:var(--panel-3);border-radius:var(--radius-sm);flex:none;justify-content:center;align-items:center;width:44px;height:44px;font-size:26px;display:flex}.action-card .ac-title{font-size:15.5px;font-weight:700}.action-card .ac-sub{color:var(--text-dim);margin-top:2px;font-size:13px}.game-layout{grid-template-columns:minmax(0, auto) var(--sidepanel-w);justify-content:center;align-items:stretch;gap:16px;width:100%;display:grid}.game-main{overflow-anchor:none;flex-direction:column;align-items:center;gap:0;min-width:0;min-height:0;display:flex}.game-side{overflow-anchor:none;flex-direction:column;gap:10px;min-width:0;min-height:0;display:flex}.board-slot,.puzzle-board-wrap{gap:var(--evalbar-gap);overflow-anchor:none;flex:none;justify-content:center;align-items:center;width:100%;display:flex}.game-main:has(.evalbar){--bar-total:calc(var(--evalbar-w) + var(--evalbar-gap))}.player-strip{background:var(--strip);border:1px solid var(--border);width:calc(var(--board-px) + var(--bar-total));flex:none;align-items:center;gap:10px;margin-inline:auto;padding:7px 10px;display:flex;position:relative}.player-strip.top{border-radius:var(--radius) var(--radius) 0 0;border-bottom:0}.player-strip.bottom{border-radius:0 0 var(--radius) var(--radius);border-top:0}.player-strip.active{box-shadow:inset 3px 0 0 var(--accent)}.player-strip .ps-info{flex:1;min-width:0;position:relative}.player-strip .ps-name{white-space:nowrap;text-overflow:ellipsis;font-size:14.5px;font-weight:700;overflow:hidden}.player-strip .ps-rating{color:var(--text-dim);margin-left:5px;font-size:13px;font-weight:500}.player-strip .ps-flags{align-items:center;gap:6px;display:flex}.player-strip .ps-captured{flex-wrap:nowrap;align-items:center;gap:1px;max-width:40%;display:flex;overflow:hidden}.player-strip .ps-captured img{vertical-align:middle;width:15px;height:15px}.player-strip .ps-material{color:var(--text-dim);margin-left:4px;font-size:12.5px;font-weight:700}.player-strip.thinking .ps-name:after{content:"";background:var(--accent-2);border-radius:50%;width:6px;height:6px;margin-left:7px;animation:1s infinite blink;display:inline-block}.player-strip .ps-conn{background:var(--strip);padding-right:6px;font-size:12px;line-height:1.3;position:absolute;top:19px;left:0}.clock{font-family:var(--font);font-variant-numeric:tabular-nums;background:var(--panel-2);color:var(--text-dim);border:1px solid var(--border);text-align:center;letter-spacing:.5px;border-radius:8px;flex:none;min-width:96px;padding:6px 12px;font-size:clamp(17px,3vw,22px);font-weight:800}.clock.active{color:#23201c;background:#e7e4dc;border-color:#0000}html[data-appearance=light] .clock.active{color:#f2efe9;background:#2b2926}.clock.low{color:#fff;background:#d9534f;border-color:#0000;animation:1s infinite clockPulse}.clock.untimed{color:var(--text-faint);background:0 0;min-width:0;font-size:14px;font-weight:600}.game-controls{flex-wrap:wrap;justify-content:flex-start;gap:6px;display:flex}.game-controls .btn{flex:auto;min-width:84px}.game-side{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:12px}.side-head{border-bottom:1px solid var(--border);color:var(--text-dim);justify-content:space-between;align-items:center;gap:8px;padding-bottom:9px;font-size:13px;font-weight:600;display:flex}.side-head b{color:var(--text);font-size:14.5px;font-weight:800}.pane{display:contents}.side-tabs{background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);order:-1;gap:4px;padding:3px;display:flex}.side-tabs button{color:var(--text-dim);cursor:pointer;background:0 0;border:0;border-radius:4px;flex:1;padding:8px 10px;font-size:13.5px;font-weight:700;transition:background-color .15s,color .15s}.side-tabs button.active{background:var(--panel-3);color:var(--text)}.movelist-wrap{border-radius:var(--radius-sm);border:0;border:1px solid var(--border);background:0 0;flex-direction:column;flex:auto;min-height:0;display:flex;overflow:hidden}.movelist-head{border-bottom:1px solid var(--border);color:var(--text-faint);text-transform:uppercase;letter-spacing:.6px;flex:none;justify-content:space-between;align-items:center;padding:8px 12px;font-size:13px;font-weight:700;display:flex}.movelist{overflow-anchor:none;flex:1;min-height:140px;padding:6px 8px;font-size:14.5px;overflow-y:auto}.movelist .ml-row{border-radius:4px;grid-template-columns:34px 1fr 1fr;align-items:center;min-height:30px;display:grid}.movelist .ml-no{color:var(--text-faint);padding-left:4px;font-size:13px}.movelist .mv{color:var(--text);cursor:pointer;text-align:left;background:0 0;border:0;border-radius:4px;align-items:center;gap:5px;min-width:0;padding:4px 7px;font-family:inherit;font-size:14.5px;font-weight:600;transition:background-color .15s;display:flex}.movelist .mv:hover{background:var(--panel-2)}.movelist .mv.current{background:var(--panel-3)}.movelist .mv .cls{border-radius:4px;flex:none;padding:0 4px;font-size:11.5px;font-weight:900;line-height:1.5}.movelist .ml-empty{color:var(--text-faint);padding:10px 6px;font-size:13.5px}.movelist-nav{border-top:1px solid var(--border);flex:none;gap:4px;padding:8px;display:flex}.movelist-nav .btn{flex:1;min-height:34px;padding:7px 0}.result-banner{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;flex:none;gap:8px;padding:14px 16px;display:flex}.result-banner .rb-title{font-size:17px;font-weight:800}.result-banner .rb-sub{color:var(--text-dim);font-size:13.5px}.result-banner .rb-farm{color:var(--text-dim);font-size:12.5px}.rb-rating{align-items:baseline;gap:8px;font-size:15px;display:flex}.rb-rating .rb-rating-label{color:var(--text-dim);font-size:13px}.rb-rating .rb-opp{color:var(--text-dim);font-size:12.5px}.rating-countup b{font-variant-numeric:tabular-nums;font-size:18px}.rating-countup .rc-delta{font-variant-numeric:tabular-nums;margin-left:6px;font-weight:700}.rating-countup .rc-delta.up{color:var(--accent,#6cc04a)}.rating-countup .rc-delta.down{color:#e05555}.rating-preview{color:var(--text-dim);flex-wrap:wrap;align-items:center;gap:10px;padding:4px 2px 0;font-size:12.5px;display:flex}.rating-preview .rp-label{opacity:.8}.rating-preview .rp{font-variant-numeric:tabular-nums;font-weight:600}.rating-preview .rp.win{color:var(--accent,#6cc04a)}.rating-preview .rp.loss{color:#e05555}.rating-preview .rp.draw{color:var(--text-dim)}.chat-wrap{border:1px solid var(--border);border-radius:var(--radius-sm);background:0 0;flex-direction:column;flex:none;height:236px;display:flex;overflow:hidden}.chat-log{overflow-anchor:none;flex-direction:column;flex:1;gap:6px;min-height:0;padding:10px 12px;font-size:14px;display:flex;overflow-y:auto}.chat-log .cm{word-break:break-word;line-height:1.4}.chat-log .cm b{color:var(--accent-2)}.chat-log .cm.system{color:var(--text-faint);font-size:13px;font-style:italic}.chat-input{border-top:1px solid var(--border);flex:none;gap:6px;padding:8px;display:flex}.chat-reactions{flex:none;gap:4px;padding:6px 8px 0;display:flex}.chat-reactions button{cursor:pointer;background:0 0;border:0;border-radius:5px;padding:2px 5px;font-size:17px}.chat-reactions button:hover{background:var(--panel-2)}.chat-head{color:var(--text-dim);border-bottom:1px solid var(--border);flex:none;align-items:center;gap:6px;padding:8px 10px;font-size:13px;font-weight:600;display:flex}.chat-log .cm.mine{color:var(--text)}.chat-wrap.muted{height:auto}.conn-banner{border-radius:var(--radius);text-align:center;flex:none;padding:7px 12px;font-size:13.5px}.conn-banner.lost{color:var(--danger-2);background:#d6454524;border:1px solid #d6454566}.offer{background:#5c9cd61a;border-color:#5c9cd666;flex:none}.search-ring{justify-content:center;align-items:center;margin-bottom:6px;display:flex}.spinner.lg{border-width:4px;width:46px;height:46px}.evalbar{width:var(--evalbar-w);height:var(--board-px);border:1px solid var(--border);background:#1c1a17;border-radius:5px;flex:none;align-self:center;position:relative;overflow:hidden}.evalbar .eb-fill{background:#f2efe9;transition:height .35s cubic-bezier(.22,1,.36,1);position:absolute;bottom:0;left:0;right:0}.evalbar.flip .eb-fill{top:0;bottom:auto}.evalbar .eb-label{text-align:center;color:#eaeaea;mix-blend-mode:difference;font-variant-numeric:tabular-nums;pointer-events:none;white-space:nowrap;padding:0 1px;font-size:11px;font-weight:800;line-height:1;display:block;position:absolute;left:0;right:0}.evalbar .eb-label.at-bottom{top:auto;bottom:4px}.evalbar .eb-label.at-top{top:4px;bottom:auto}.pv-lines{font-size:13.5px;font-family:var(--mono);flex-direction:column;gap:4px;display:flex}.pv-lines .pv{color:var(--text-dim);white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.pv-lines .pv b{color:var(--text)}.eval-graph{cursor:crosshair;width:100%;height:90px;display:block}.analysis-progress{background:var(--panel-3);border-radius:999px;height:5px;overflow:hidden}.analysis-progress>div{background:var(--accent);height:100%;transition:width .2s}.puzzle-grid{grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;display:grid}.puzzle-card{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;flex-direction:column;gap:6px;padding:14px;transition:border-color .15s;display:flex}.puzzle-card:hover{border-color:var(--accent)}.puzzle-card .pc-title{font-size:14.5px;font-weight:700}.puzzle-card .pc-meta{color:var(--text-dim);flex-wrap:wrap;gap:8px;font-size:12.5px;display:flex}.puzzle-status{align-items:center;gap:10px;font-weight:700;display:flex}.puzzle-status.ok{color:var(--accent-2)}.puzzle-status.bad{color:var(--danger-2)}.rush-timer{font-variant-numeric:tabular-nums;font-size:30px;font-weight:900}.settings-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));align-items:start;gap:16px;display:grid}.swatch-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.swatch{background:var(--panel-2);border:2px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;flex-direction:column;align-items:center;gap:6px;padding:8px;font-size:12.5px;font-weight:600;transition:border-color .15s;display:flex}.swatch.selected{border-color:var(--accent)}.swatch .sw-preview{border-radius:4px;grid-template-columns:1fr 1fr;width:54px;height:54px;display:grid;overflow:hidden}.piece-preview{justify-content:center;align-items:center;height:74px;display:flex}.piece-preview img{height:66px}.credits-list{flex-direction:column;gap:14px;display:flex}.credits-item{border-left:3px solid var(--accent);padding-left:12px}.credits-item .ci-title{font-weight:700}.credits-item .ci-license{color:var(--accent-2);font-size:13px;font-family:var(--mono)}.credits-item .ci-note{color:var(--text-dim);margin-top:3px;font-size:13.5px}.spinner{border:3px solid var(--panel-3);border-top-color:var(--accent);border-radius:50%;width:22px;height:22px;animation:.8s linear infinite spin}.center-page{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:14px;padding:60px 16px;display:flex}.divider{background:var(--border);height:1px;margin:14px 0}.kbd{font-family:var(--mono);background:var(--panel-3);border:1px solid var(--border);border-bottom-width:2px;border-radius:4px;padding:1px 6px;font-size:12px}.mono{font-family:var(--mono);font-size:13px}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes popIn{0%{opacity:0;transform:scale(.96)}to{opacity:1;transform:scale(1)}}@keyframes slideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes blink{50%{opacity:.2}}@keyframes clockPulse{50%{opacity:.82}}@media (max-width:1023px){.tabbar{display:flex}.app-main{padding-bottom:86px}.topnav nav{display:none}.game-layout{grid-template-columns:minmax(0,1fr)}.game-side{background:0 0;border:0;gap:10px;padding:0;overflow:visible}.game-side .side-tabs{display:flex}.game-side .pane{display:none}.game-side[data-tab=moves] .pane[data-pane=moves],.game-side[data-tab=chat] .pane[data-pane=chat],.game-side[data-tab=analysis] .pane[data-pane=analysis]{flex-direction:column;gap:10px;display:flex}.game-side .result-banner,.game-side .conn-banner,.game-side .offer{order:0}.movelist-wrap{flex:none}.movelist{max-height:44vh}.chat-wrap{height:auto;max-height:50vh}.chat-log{max-height:34vh}}@media (min-width:1024px){.sidenav{display:flex}.topnav,.side-tabs{display:none}html:has(.game-layout){height:100dvh;overflow:hidden}html:has(.game-layout) body{height:100dvh;overflow:hidden}html:has(.game-layout) #root{height:100dvh;min-height:0;overflow:hidden}html:has(.game-layout) .shell{height:100%;overflow:hidden}html:has(.game-layout) .app-main{flex-direction:column;max-width:none;height:100%;padding:14px 18px;display:flex;overflow:hidden}.game-layout{height:100%;min-height:0}html:has(.game-layout) .center-page{flex:1;min-height:0;overflow-y:auto}.board-slot,.puzzle-board-wrap{flex:auto;min-height:0}.game-side{overflow-y:auto}.game-main{width:auto}}.game-main>.card{width:calc(var(--board-px) + var(--bar-total));max-width:100%;margin-inline:auto}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.page{flex-direction:column;gap:16px;max-width:900px;margin:0 auto;padding:22px 16px 40px;display:flex}.page.narrow{max-width:760px}.page-head{flex-direction:column;gap:4px;margin-top:4px;display:flex}.card-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.empty-state{text-align:center;color:var(--text-dim);flex-direction:column;align-items:center;gap:8px;padding:26px 14px;display:flex}.field-label{color:var(--text-dim);margin:12px 0 5px;font-size:13.5px;font-weight:600;display:block}.field-optional{color:var(--text-faint);font-weight:500}.field-hint{color:var(--text-dim);min-height:16px;margin:4px 0 0;font-size:12.5px}.field-hint.ok{color:var(--accent-2)}.field-hint.bad{color:var(--danger-2)}.form-error{color:var(--danger-2);border-radius:var(--radius-sm);background:#cc3c3c24;border:1px solid #cc3c3c73;margin:8px 0;padding:9px 11px;font-size:13.5px}.link-btn{cursor:pointer;color:var(--blue);background:0 0;border:none;padding:4px 2px;font-size:13.5px;text-decoration:underline}.link-btn:hover{color:var(--accent-2)}.skel{border-radius:var(--radius-sm);background:var(--panel-2);display:block;position:relative;overflow:hidden}.skel:after{content:"";background:linear-gradient(100deg, transparent 35%, var(--panel-3) 50%, transparent 65%);animation:1.4s ease-in-out infinite skel-shimmer;position:absolute;inset:0;transform:translate(-100%)}.skel-row{height:46px}.skel-chip{border-radius:999px;width:132px;height:32px}@keyframes skel-shimmer{to{transform:translate(100%)}}@media (prefers-reduced-motion:reduce){.skel:after{animation:none}}.auth-card{flex-direction:column;align-items:center;gap:6px;width:min(420px,100vw - 32px);padding:26px 24px;display:flex}.auth-tabs{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);gap:4px;margin-top:10px;padding:3px;display:flex}.auth-tab{color:var(--text-dim);font:inherit;border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;flex:1;padding:7px 12px;font-size:13.5px;font-weight:600}.auth-tab.active{background:var(--panel-3);color:var(--text)}.auth-panel{text-align:left;flex-direction:column;gap:7px;min-width:min(330px,76vw);display:flex}.auth-sub{margin:2px 0 0;font-size:16.5px;font-weight:700}.auth-note{color:var(--text-dim);margin:0;font-size:13px;line-height:1.45}.auth-note b{color:var(--text)}.auth-providers{flex-direction:column;gap:8px;margin-top:6px;display:flex}.auth-provider{border:1px solid var(--border);color:var(--text);justify-content:flex-start;gap:10px}.auth-provider:hover{border-color:var(--accent);background:var(--panel-2)}.auth-provider-icon{background:var(--panel-3);width:20px;height:20px;color:var(--text);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:11.5px;font-weight:800;display:inline-flex}.auth-form{flex-direction:column;display:flex}.auth-row{justify-content:space-between;gap:8px;margin-top:12px;display:flex}.auth-code-input{letter-spacing:8px;text-align:center;font-size:22px;font-family:var(--mono)}.auth-switch{text-align:center;margin-top:8px}.auth-legal{color:var(--text-faint);text-align:center;margin:6px 0 0;font-size:12px;line-height:1.5}.auth-legal a{color:var(--text-dim)}.turnstile{margin-top:6px}.field-hint a{color:var(--blue)}.onboard-avatar{align-items:center;gap:12px;margin:10px 0 2px;display:flex}.avatar-actions{flex-direction:column;gap:6px;display:flex}.avatar-hist-title{margin:12px 0 6px}.avatar-grid{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px;max-width:540px;display:grid}.av-cell{background:var(--panel-2);cursor:pointer;border:2px solid #0000;border-radius:8px;padding:0;line-height:0}.av-cell img{aspect-ratio:1;border-radius:6px;width:100%;height:auto;display:block}.av-cell:hover{border-color:var(--border)}.av-cell.sel{border-color:var(--accent)}.acct{display:flex;position:relative}.acct-btn{cursor:pointer;font:inherit;color:inherit;background:var(--panel-2);border:1px solid #0000}.acct-btn:hover{border-color:var(--border)}.nav-chip.skel-chip{padding:0}.nav-signin{white-space:nowrap;flex:none}.menu-overlay{z-index:40;position:fixed;inset:0}.acct-menu{z-index:41;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);flex-direction:column;min-width:190px;padding:6px;display:flex;position:absolute;top:calc(100% + 6px);right:0}.acct-menu a,.acct-menu button{text-align:left;font:inherit;color:var(--text);border-radius:var(--radius-sm);cursor:pointer;background:0 0;border:none;padding:8px 10px;text-decoration:none}.acct-menu a:hover,.acct-menu button:hover{background:var(--panel-2);text-decoration:none}.acct-menu button{color:var(--danger-2)}.sn-account{flex-direction:column;align-items:stretch;gap:8px;display:flex}.sn-account .acct{width:100%}.sn-account .acct-btn{justify-content:flex-start;width:100%}html[data-nav=collapsed] .ns-label{display:none}html[data-nav=collapsed] .nav-signin,html[data-nav=collapsed] .sn-account .acct-btn{justify-content:center;padding:5px}.profile-head{align-items:center;gap:16px;display:flex}.profile-id{flex:1;min-width:0}.profile-flag{font-size:22px}.profile-play{flex:none}.rating-grid{grid-template-columns:repeat(auto-fit,minmax(128px,1fr));gap:10px;display:grid}.rating-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;text-align:left;font:inherit;color:var(--text);flex-direction:column;gap:3px;padding:11px 12px;transition:border-color .15s;display:flex}.rating-card:hover{border-color:var(--text-faint)}.rating-card.active{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent)}.rating-card .rc-cat{text-transform:capitalize;color:var(--text-dim);font-size:12px}.rating-card .rc-value{font-variant-numeric:tabular-nums;font-size:22px;font-weight:800}.rating-card .rc-meta{color:var(--text-faint);font-size:11.5px}.cat-tabs{flex-wrap:wrap;gap:4px;display:flex}.cat-tabs button{background:var(--panel-2);border:1px solid var(--border);color:var(--text-dim);cursor:pointer;text-transform:capitalize;border-radius:999px;padding:4px 11px;font-size:12.5px}.cat-tabs button:hover{color:var(--text)}.cat-tabs button.active{background:var(--accent);border-color:var(--accent);color:var(--accent-text);font-weight:700}.cat-tabs.big button{padding:7px 16px;font-size:13.5px}.game-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.game-row{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:10px;padding:9px 4px;display:flex}.game-row:last-child{border-bottom:none}.wl-badge{border-radius:6px;flex:none;justify-content:center;align-items:center;width:24px;height:24px;font-size:12px;font-weight:800;display:inline-flex}.wl-badge.win{color:var(--accent-2);background:#81b64c33}.wl-badge.loss{color:var(--danger-2);background:#cc3c3c2e}.wl-badge.draw{background:var(--panel-3);color:var(--text-dim)}.game-vs{flex:1;min-width:140px;font-size:13.5px}.game-meta{color:var(--text-dim);font-size:12px}.game-date{color:var(--text-faint);font-size:12px}.chart-wrap{width:100%}.rating-chart{width:100%;height:auto;display:block}.chart-grid{stroke:var(--border);stroke-width:1px;stroke-dasharray:3 4}.chart-axis{fill:var(--text-faint);font-size:10.5px}.chart-line{stroke:var(--accent);stroke-width:2.2px;stroke-linejoin:round;stroke-linecap:round}.chart-dot{fill:var(--accent);stroke:var(--panel);stroke-width:1.4px;cursor:pointer}.chart-cursor{stroke:var(--text-faint);stroke-width:1px;stroke-dasharray:2 3}.chart-tip-bg{fill:var(--panel-3);stroke:var(--border)}.chart-tip-text{fill:var(--text);font-size:11.5px}.chart-foot{color:var(--text-faint);justify-content:space-between;padding:2px 6px 0 40px;font-size:11.5px;display:flex}.chart-empty{text-align:center;color:var(--text-dim);padding:28px 12px;font-size:13.5px}.lb-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.lb-row{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:8px 6px;display:flex}.lb-row:last-child{border-bottom:none}.lb-row.top{background:linear-gradient(90deg,#e0b34114,#0000 65%)}.lb-rank{text-align:center;width:28px;color:var(--text-dim);font-variant-numeric:tabular-nums;flex:none;font-weight:800}.lb-row.top .lb-rank{color:var(--warn)}.lb-name{min-width:0;color:var(--text);text-overflow:ellipsis;white-space:nowrap;flex:1;font-weight:600;text-decoration:none;overflow:hidden}.lb-name:hover{color:var(--accent-2);text-decoration:none}.lb-flag{margin-left:6px}.lb-record{color:var(--text-dim);flex:none;font-size:12.5px}.lb-games{color:var(--text-faint);flex:none;font-size:12px}.lb-rating{font-variant-numeric:tabular-nums;text-align:right;flex:none;min-width:46px;font-weight:800}.provider-list{flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.provider-list li{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:10px;padding:8px 2px;font-size:14px;display:flex}.provider-list li:last-child{border-bottom:none}.pl-label{font-weight:600}.pl-value{color:var(--text-dim);font-size:13.5px}.pl-value.ok{color:var(--accent-2)}.legal section{margin-top:18px}.legal h2{margin:0 0 6px;font-size:16.5px}.legal p{color:var(--text-dim);margin:0 0 8px;font-size:14px;line-height:1.6}.legal-intro{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);padding:12px 14px;color:var(--text)!important}.site-footer{border-top:1px solid var(--border);color:var(--text-faint);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;font-size:13px;display:flex}.site-footer nav{flex-wrap:wrap;gap:16px;display:flex}.site-footer a{color:var(--text-dim);text-decoration:none}.site-footer a:hover{color:var(--text);text-decoration:underline}@media (max-width:640px){.nav-signin .ns-label{display:none}.nav-signin{padding:5px 8px}.nav-chip{min-width:0}.nav-chip span:not(.rating){white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.profile-head{flex-wrap:wrap}.profile-play{justify-content:center;width:100%}.game-row{gap:8px}.lb-record,.lb-games{display:none}.auth-panel{min-width:0}.site-footer{text-align:center;justify-content:center}}.board{width:var(--board-px);height:var(--board-px);aspect-ratio:1;background:var(--sq-light);-webkit-user-select:none;user-select:none;touch-action:none;cursor:default;overflow-anchor:none;border-radius:4px;flex:none;position:relative;overflow:hidden}.board:focus-visible{outline:3px solid var(--accent-2);outline-offset:2px}.board .layer{pointer-events:none;position:absolute;inset:0}.board .sq{width:12.5%;height:12.5%;position:absolute}.board .sq.light{background:var(--sq-light)}.board .sq.dark{background:var(--sq-dark)}.board .coord{font-size:clamp(9px, calc(var(--board-size) / 52), 13px);pointer-events:none;z-index:6;box-sizing:border-box;font-weight:700;line-height:1;position:absolute}.board .coord.file{text-align:right;justify-content:flex-end;align-items:flex-end;padding:0 4px 3px 0;display:flex}.board .coord.rank{text-align:left;justify-content:flex-start;align-items:flex-start;padding:3px 0 0 4px;display:flex}.board .coord.on-light{color:var(--sq-dark)}.board .coord.on-dark{color:var(--sq-light)}.board .hl{width:12.5%;height:12.5%;position:absolute}.board .hl.last{background:var(--hl-last)}.board .hl.selected{background:var(--hl-selected)}.board .hl.premove{background:var(--hl-premove)}.board .hl.mark{background:var(--hl-mark)}.board .hl.check{background:var(--hl-check)}.board .hl.cursor{box-shadow:inset 0 0 0 3px var(--accent-2)}.board .dot{justify-content:center;align-items:center;width:12.5%;height:12.5%;display:flex;position:absolute}.board .dot:after{content:"";background:var(--dot);border-radius:50%;width:30%;height:30%}.board .dot.capture:after{border:calc(var(--board-size) / 64) solid var(--ring);background:0 0;width:88%;height:88%}.board .piece{z-index:3;will-change:transform;width:12.5%;height:12.5%;transform:translate(calc(var(--px) * 100%), calc(var(--py) * 100%));position:absolute;top:0;left:0}.board.anim .piece{transition:transform .14s cubic-bezier(.37,.15,.25,1)}.board .piece.dragging{z-index:10;pointer-events:auto;filter:drop-shadow(0 6px 10px #00000073);transform:translate(var(--dx), var(--dy));transition:none!important}.board .piece img,.board .piece{-webkit-user-drag:none}.board .piece img{object-fit:contain;width:100%;height:100%;margin:0;padding:0;display:block}.board .arrows{z-index:4;pointer-events:none;position:absolute;inset:0}.board .arrows .arrow-line{stroke-linecap:round;opacity:.9}.board.editing .piece{cursor:pointer}.board .promo{z-index:30;background:var(--panel);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:8px;flex-direction:column;gap:2px;padding:4px;display:flex;position:absolute}.board .promo button{cursor:pointer;width:calc(var(--board-size) / 8 - 12px);height:calc(var(--board-size) / 8 - 12px);background:0 0;border:0;border-radius:6px;justify-content:center;align-items:center;padding:2px;display:flex}.board .promo button:hover{background:var(--panel-3)}.board .promo button img{width:90%;height:90%}.board .kbd-cursor{z-index:7;width:12.5%;height:12.5%;position:absolute;box-shadow:inset 0 0 0 3px #9bc46af2}.board-overlay{z-index:40;background:#0a0a0859;border-radius:4px;justify-content:center;align-items:center;display:flex;position:absolute;inset:0}@keyframes shakeAnim{0%,to{transform:translate(0)}20%{transform:translate(-7px)}40%{transform:translate(7px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.shake{animation:.42s shakeAnim}.theme-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px;display:grid}.theme-card{background:var(--panel-2);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;color:var(--text);text-align:left;flex-direction:column;align-items:flex-start;gap:3px;padding:12px;display:flex}.theme-card:hover{border-color:var(--accent);background:var(--panel-3)}.theme-card .tc-icon{font-size:22px}@keyframes hintPulse{50%{opacity:.55}}.board .arrows .hint{animation:1.1s ease-in-out infinite hintPulse}.eval-graph-wrap{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;padding:8px;position:relative}.eval-graph-wrap .eval-graph{width:100%;height:96px;display:block}.eval-graph-wrap .eg-marker{background:var(--accent-2);pointer-events:none;width:2px;position:absolute;top:8px;bottom:8px}.eval-graph-wrap .eg-zero{background:var(--border);pointer-events:none;height:1px;position:absolute;top:50%;left:8px;right:8px}.pv-lines{flex-direction:column;gap:4px;display:flex}.pv-line{cursor:pointer;text-align:left;color:var(--text);background:0 0;border:0;border-radius:6px;grid-template-columns:34px 46px 1fr;align-items:baseline;gap:8px;width:100%;padding:4px 6px;font-size:13px;display:grid}.pv-line:hover{background:var(--panel-2)}.pv-line .pv-score{font-weight:700;font-family:var(--mono)}.pv-line .pv-moves{color:var(--text-dim);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.pv-line .pv-depth{color:var(--text-faint);font-size:11.5px}.progress{background:var(--panel-3);border-radius:3px;height:6px;overflow:hidden}.progress>div{background:var(--accent);height:100%;transition:width .15s linear}.accuracy-row{flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;display:flex}.accuracy-row b{font-family:var(--mono)}.book-line{flex-wrap:wrap;gap:4px;display:flex}.book-move{background:var(--panel-2);border:1px solid var(--border);color:var(--text-dim);cursor:pointer;border-radius:5px;padding:2px 7px;font-size:13px}.book-move:hover{color:var(--text);border-color:var(--accent)}.opening-chip{color:var(--text-dim);align-items:center;gap:6px;font-size:12.5px;display:flex}.opening-chip .eco{font-family:var(--mono);color:var(--text-faint);font-size:11px}.editor-palette{flex-wrap:wrap;align-items:center;gap:4px;display:flex}.editor-palette .ep-piece{background:var(--panel-2);border:2px solid var(--border);cursor:pointer;border-radius:6px;justify-content:center;align-items:center;width:44px;height:44px;padding:2px;display:flex}.editor-palette .ep-piece.selected{border-color:var(--accent);background:var(--panel-3)}.editor-palette .ep-piece img{width:90%;height:90%}.boardside-stack{flex-direction:column;gap:8px;display:flex}.game-flags{align-items:center;gap:6px;display:inline-flex}.game-vs{color:var(--text-faint);font-size:12px}.thinking-dots:after{content:"…";animation:1.2s infinite blink}
