@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;450;500;550;600;650;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap');
:root{color-scheme:dark;--bg:#21201d;--sidebar:#181715;--surface:#272522;--surface2:#302e2b;--line:#3d3a34;--text:#ffffff;--muted:#a6a39b;--lime:#81b64c;--lime-hover:#95c85c;--dark-square:#739552;--light-square:#ebecd0;--blue:#3b82f6;--red:#e03b3b}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:'DM Sans',system-ui,sans-serif;font-size:14px;line-height:1.5}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--lime);outline-offset:4px}button{color:inherit}a{color:inherit;text-decoration:none}button svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}button{transition:background .15s,color .15s,border-color .15s}h1,h2,h3,p{margin:0}h1,h2,h3,.brand{font-family:Manrope,system-ui,sans-serif}h1{font-size:clamp(28px,2.6vw,42px);font-weight:650;letter-spacing:-1.8px;line-height:1.22}h1 em{font-style:normal;color:var(--lime)}h2{font-weight:650;letter-spacing:-.7px;font-size:24px;line-height:1.3}h3{font-size:17px}p.muted,.muted{color:var(--muted)}[hidden]{display:none!important}
.sidebar{width:222px;position:fixed;inset:0 auto 0 0;background:var(--sidebar);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:35px 20px 20px;z-index:20}.brand{display:flex;align-items:center;gap:11px;font-size:27px;letter-spacing:-1px;font-weight:800;margin:0 9px 42px}.brand img{width:39px;height:39px}.brand-light{font-weight:450}.brand i{display:inline-block;width:5px;height:5px;background:var(--lime);margin-left:3px}.sidebar-caption{font-size:9px;letter-spacing:1.8px;color:#8f8c85;margin:0 13px 16px}.main-nav{display:flex;flex-direction:column;gap:7px}.nav-item{display:flex;align-items:center;gap:13px;width:100%;border:1px solid transparent;background:transparent;padding:14px 13px;border-radius:8px;color:#a8a59e;text-align:left;font-weight:500}.nav-item svg{width:21px;height:21px}.nav-item.active{color:var(--lime);background:#2b3323;border-color:#414f35}.nav-item:hover{background:#282622}.nav-key{margin-left:auto;font-size:10px;color:#7e7b74}.nav-item.active .nav-key{color:#9ec264}.sidebar-note{display:none}.sidebar-bottom{margin-top:auto;display:flex;gap:6px;align-items:center;color:#8a8780;font-size:9px;letter-spacing:.05px}.status-dot{display:inline-block;background:var(--lime);width:5px;height:5px;border-radius:50%;flex-shrink:0}.version{margin-left:auto;color:#6b6861}.app-shell{margin-left:222px}.topbar{height:81px;padding:0 43px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;position:relative}.breadcrumb{font-size:12px;color:#9e9b93;display:flex;gap:16px}.breadcrumb strong{color:#e6e4df;font-weight:500}.breadcrumb span{color:#57544d}.topbar-actions{display:flex;align-items:center;gap:18px}.account-button{display:flex;align-items:center;gap:10px;background:none;border:none;font-size:12px}.account-button>span:last-child{color:var(--muted)}.avatar{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#38442c;color:var(--lime);font-weight:700}.connection{font-size:10px;color:var(--muted)}.connection.bad{color:#e8bb68}.account-menu{position:absolute;top:67px;right:43px;background:var(--surface2);border:1px solid var(--line);box-shadow:0 12px 35px #0006;padding:8px;min-width:210px;z-index:30;border-radius:10px}.account-menu>span{display:block;padding:10px 12px;color:var(--lime);font-size:12px;border-bottom:1px solid var(--line)}.account-menu button{display:block;border:0;background:none;padding:11px 12px;text-align:left;width:100%;border-radius:5px;font-size:12px}.account-menu button:hover{background:#3b3834}
main{max-width:1440px;margin:auto;padding:32px 40px 0}.page-intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:20px}.eyebrow{color:var(--lime);font-size:9px;font-weight:700;letter-spacing:2px;margin-bottom:8px}.page-intro p:last-child{margin-top:8px;color:var(--muted);font-size:13px}.intro-stamp{display:none}.workspace{display:grid;grid-template-columns:minmax(320px,1fr) minmax(320px,380px);gap:32px;align-items:start;max-width:1280px;margin:auto}.board-column{min-width:0;max-width:min(82vh,760px);width:100%;margin:auto}.player-row{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:14px}.player-row:first-child{padding-bottom:10px}.player-row:nth-child(3){padding-top:10px}.player-identity{display:flex;align-items:center;gap:11px;min-width:0}.player-identity>div{display:flex;flex-direction:column;gap:2px;min-width:0}.player-identity strong{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.player-identity small{color:#9e9b93;font-size:10px}.player-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;background:#35332f;color:#d5d2cb;font-family:Manrope,sans-serif;font-weight:750;flex-shrink:0}.player-icon.lime{background:#81b64c;color:#ffffff}.clock{font-family:Manrope,monospace;font-size:25px;line-height:1.4;font-weight:700;letter-spacing:-1px;font-variant-numeric:tabular-nums;background:#1b1a18;border:1px solid var(--line);color:#dcd8cf;min-width:99px;text-align:center;padding:3px 13px;border-radius:6px}.clock.running{background:#262f20;color:var(--lime);border-color:var(--lime)}.clock.low{color:#ff6b6b;border-color:#ff6b6b}.board-wrap{position:relative}.board{width:100%;aspect-ratio:1;display:grid;grid-template-columns:repeat(8,1fr);position:relative;border-radius:6px;overflow:hidden;box-shadow:0 6px 24px rgba(0,0,0,0.5);touch-action:none;user-select:none;cursor:default}.square{width:100%;aspect-ratio:1;position:relative;border:0;border-radius:0;padding:0;display:grid;place-items:center;isolation:isolate;touch-action:none;cursor:default}.square.playable,.square:has(.piece.playable){cursor:grab}body.is-dragging,body.is-dragging *{cursor:grabbing!important}.square.drag-hover{box-shadow:inset 0 0 0 4px rgba(255,255,255,0.7)!important;background-color:rgba(255,255,255,0.12);z-index:4}.square.light{background:var(--light-square)}.square.dark{background:var(--dark-square)}.piece{width:92%;height:92%;pointer-events:none;position:relative;z-index:2;filter:drop-shadow(0 2px 2px rgba(0,0,0,0.2));transition:opacity .1s}.coordinate{position:absolute;font-size:clamp(10px,1.1vw,13px);font-weight:700;line-height:1;z-index:3;pointer-events:none;user-select:none}.square.light .coordinate{color:var(--dark-square)}.square.dark .coordinate{color:var(--light-square)}.coordinate.rank{top:4px;left:4px}.coordinate.file{bottom:4px;right:4px}.square.last-move.light{background:#f5f682!important}.square.last-move.dark{background:#baca2b!important}.square.selected{background:#f7f769!important}.square.legal-target:after{content:'';width:28%;height:28%;background:rgba(0,0,0,0.2);border-radius:50%;position:absolute;z-index:3;pointer-events:none}.square.capture-target:after{content:'';position:absolute;inset:4%;border:6px solid rgba(0,0,0,0.22);border-radius:50%;z-index:3;pointer-events:none}.square.in-check{background:radial-gradient(circle at center,#e03b3b 0%,#b32020 75%)!important}.square:focus-visible{outline:3px solid var(--blue);outline-offset:-3px;z-index:6}.hint-arrow{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:5;overflow:visible}.drag-piece{position:fixed;height:auto;transform:translate(-50%,-50%);pointer-events:none;z-index:1000;cursor:grabbing!important;filter:drop-shadow(0 10px 8px rgba(0,0,0,0.5))}.eval-bar{position:absolute;width:8px;top:0;bottom:0;left:-16px;background:#383632;overflow:visible;border-radius:2px}.eval-bar>div{position:absolute;bottom:0;background:#ffffff;width:100%;height:50%;transition:height .2s}.eval-bar span{position:absolute;left:-7px;bottom:8px;background:#ffffff;padding:1px 2px;color:#222;font-size:8px;font-weight:700;z-index:1}.board-toolbar{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:11px 0;margin-top:2px}.board-state{display:flex;gap:8px;align-items:center;font-size:12px;color:#aba79f;min-width:0}.board-state span:last-child{overflow-wrap:anywhere}.toolbar-buttons{display:flex;gap:6px}.icon-button{width:34px;height:34px;background:none;border:1px solid transparent;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;color:#b2aea5;font-size:22px;line-height:1;flex-shrink:0}.icon-button:hover{background:#302e2b;border-color:var(--line);color:var(--lime)}.icon-button svg{width:19px;height:19px}#toggle-sound svg{width:19px;height:19px}#toggle-sound.muted .sound-on{display:none}#toggle-sound:not(.muted) .sound-off{display:none}
.side-panel{display:flex;flex-direction:column;gap:18px;margin-top:0}.panel{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:24px}.panel-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;color:#b5b1a8;font-size:10px}.section-number{font-size:9px;letter-spacing:1.7px;font-weight:600}.tiny-grid{color:var(--lime);font-size:22px;line-height:12px}.panel>p.muted{margin:8px 0 20px;font-size:12px;line-height:1.6}.segmented{display:flex;gap:4px;padding:4px;background:#1b1a18;border:1px solid var(--line);border-radius:8px;margin:18px 0}.segmented button{flex:1;padding:10px 5px;background:none;border:0;border-radius:5px;color:#aba79e;font-size:12px;white-space:nowrap}.segmented button.selected{background:#353d2d;color:var(--lime);box-shadow:0 1px 3px #0004}.segmented button:hover{color:var(--lime)}label{display:flex;align-items:center;justify-content:space-between;color:#dedad2;font-size:11px;font-weight:500;margin:16px 0 8px}label span{font-size:8px;letter-spacing:1px;color:#8f8c85}select,input,textarea{width:100%;background:#1b1a18;border:1px solid var(--line);color:#eeebe3;border-radius:6px;padding:12px;font-size:12px;min-width:0}select{padding-right:20px;cursor:pointer}textarea{resize:vertical;font-family:ui-monospace,monospace;line-height:1.7;font-size:11px;min-height:150px}textarea::placeholder,input::placeholder{color:#6c6962}.color-options{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.color-options button{padding:8px 3px;border-radius:6px;border:1px solid var(--line);background:#1f1e1b;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:10px;color:#b2aea5}.color-options button.selected{border-color:var(--lime);background:#2c3522;color:#ffffff}.color-options img{width:32px;height:32px}.random-piece{display:grid;place-items:center;font-size:34px;height:32px;color:#dcd9d2;line-height:1}.form-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:23px}.button{border:1px solid transparent;border-radius:6px;padding:12px 17px;display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:12px;font-weight:700;min-height:43px}.button.primary{background:var(--lime);color:#ffffff;box-shadow:0 3px 0 #588031;text-shadow:0 1px 1px rgba(0,0,0,0.2)}.button.primary:hover{background:var(--lime-hover)}.button.primary span{margin-left:auto;font-size:20px;line-height:1}.button.secondary{border-color:var(--line);background:#302e2b;color:#e2ded6}.button.secondary:hover{background:#3a3733;border-color:#524f48}.button.full,.full{width:100%}.button.compact{padding:7px 11px;min-height:35px;background:#353d2d;color:var(--lime);font-size:10px}.form-note{color:#8f8c85;text-align:center;font-size:10px;line-height:1.7;margin-top:15px}.small-card{display:flex;gap:16px;padding:22px 20px;background:#1e1d1a;border:1px solid var(--line);border-radius:8px}.small-card-icon{color:var(--lime);font-size:27px;line-height:1.1}.small-card strong{font-size:12px;font-weight:600;color:#e8e5de}.small-card p{font-size:11px;color:#9e9b93;line-height:1.7;margin:5px 0 10px}.text-button{background:none;border:0;color:var(--lime);padding:0;font-size:11px;font-weight:600;line-height:1.6}.text-button:hover{text-decoration:underline}.text-button.full{padding:15px 0 0}.result-pill,.subtle-tag{font-size:8px;letter-spacing:1px;padding:4px 7px;border:1px solid #4a5a3a;border-radius:4px;color:var(--lime)}.invitation{padding:14px;background:#252d1d;border:1px solid #435433;border-radius:8px;margin:15px 0}.invitation p{font-size:11px;color:#d5e5c3;margin-bottom:9px}.invite-field{display:flex;gap:6px}.invite-field input{font-size:10px;padding:8px}.moves-heading{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1.3px;color:#96938a;border-bottom:1px solid var(--line);padding:18px 0 10px}.moves-heading span:last-child{letter-spacing:0;color:#7e7b73}.move-list{max-height:230px;overflow:auto;scrollbar-width:thin;scrollbar-color:#48453e transparent;min-height:120px}.move-row{display:grid;grid-template-columns:29px 1fr 1fr;min-height:34px;align-items:center;font-family:Manrope,sans-serif;font-size:12px;gap:3px;padding:2px 4px}.move-row:nth-child(even){background:#242320}.move-row>span{color:#7a7770;font-size:10px}.move-cell{border:1px solid transparent;background:none;text-align:left;border-radius:4px;color:#dedad2;padding:5px 8px;font-size:12px;min-height:29px;font-weight:500;position:relative;display:flex;justify-content:space-between;align-items:center;gap:5px}.move-cell:disabled{cursor:default;opacity:1}.move-cell.selected{background:#323b28;border-color:#5c783c;color:#ffffff}.move-cell:hover:not(:disabled){background:#2f2d29}.grade-dot{border-radius:50%;width:6px;height:6px;flex-shrink:0}.empty-moves{padding:32px 5px;text-align:center;color:#85827b;font-size:11px}.game-actions{display:flex;gap:8px;margin-top:18px}.game-actions>*{flex:1;padding-left:8px;padding-right:8px;font-size:10px}.notice{padding:11px;background:#383522;color:#ebe5bd;font-size:11px;margin-top:12px;border-radius:6px}.notice button{margin-left:8px}.import-actions{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:7px 0 22px}.file-button{font-size:10px;color:var(--lime);cursor:pointer;margin:0}.import-actions>span{font-size:8px;color:#85827a}.opening-label{font-size:11px;color:#a8c487;margin:10px 0 18px;min-height:17px}.review-panel{padding:20px}.review-panel h2{font-size:20px}.review-panel .panel-heading{margin-bottom:13px}.accuracy-row{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 5px;margin:10px 0 15px;gap:7px}.accuracy-row>div{display:flex;flex-direction:column;text-align:center}.accuracy-row span{font-size:8px;letter-spacing:1.5px;color:#9b988f}.accuracy-row strong{font-family:Manrope,sans-serif;font-size:28px;color:#ffffff;line-height:1.4;letter-spacing:-1px}.accuracy-center{font-size:8px;letter-spacing:1px;color:#a6a399;line-height:1.9}.accuracy-center small{letter-spacing:0;font-size:8px;color:#7e7b72}.review-graph{height:75px;border-bottom:1px solid var(--line);position:relative;background:#1b1a18;overflow:hidden;border-radius:4px}.review-graph svg{width:100%;height:100%;display:block}.graph-point{cursor:pointer}.analysis-progress{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:10px 0 13px;color:#a3a096;font-size:9px}.analysis-progress .text-button{font-size:9px}.grade-counts{display:grid;grid-template-columns:repeat(3,1fr);gap:5px;margin-bottom:13px}.grade-count{display:flex;align-items:center;gap:5px;color:#a3a096;font-size:8px;padding:3px 0}.grade-count b{margin-left:auto;font-weight:500;color:#ffffff}.review-navigation{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:5px 0}.review-navigation>span{font-size:10px;color:#b2aea5;text-align:center}.review-moves{max-height:174px;min-height:70px;margin-top:8px}.move-explanation{background:#1b1a18;border:1px solid var(--line);border-radius:6px;padding:13px;margin-top:14px}.move-explanation h3{font-size:12px;display:flex;align-items:center;gap:8px;margin-bottom:6px}.move-explanation p{font-size:10px;color:#aba79d;line-height:1.7;overflow-wrap:anywhere}.move-explanation .pv{border-top:1px solid var(--line);padding-top:8px;margin-top:9px;font-family:ui-monospace,monospace;font-size:9px}.move-explanation .best-alternative{color:#9ec264;margin-top:7px}.review-tip{font-size:9px;color:#858279;line-height:1.7;margin:12px 0}.branch-tools{margin-top:11px;padding:9px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:7px}.branch-tools>span{font-size:8px;color:#559eef;letter-spacing:1px}.branch-tools button{font-size:9px}.eval-text{color:var(--muted);font-size:9px}.last-grade-badge{display:inline-block;padding:3px 7px;border-radius:5px;background:#282b22;font-size:10px;border:1px solid #435433}.review-panel .button.secondary{font-size:10px;min-height:36px;padding:9px}.review-panel #deep-status{font-size:9px;margin-top:8px;min-height:0}
footer{display:flex;justify-content:space-between;gap:20px;max-width:1280px;margin:32px auto 0;border-top:1px solid var(--line);padding:21px 0 25px;color:#7e7b73;font-size:9px}footer span:first-child{letter-spacing:2px;color:#aba79e;font-size:8px}footer span:last-child{font-size:8px}.modal{border:1px solid var(--line);border-radius:12px;background:#272522;color:var(--text);padding:32px;width:min(430px,calc(100vw - 32px));box-shadow:0 25px 100px #000a}.modal::backdrop{background:#000000cc;backdrop-filter:blur(4px)}.modal-close{position:absolute;right:15px;top:10px;color:#aba79e;background:none;border:0;font-size:25px;width:30px;height:30px}.modal h2{font-size:27px;margin:0 15px 10px 0}.modal>.muted{font-size:12px}.modal .form-error{min-height:18px;font-size:11px;color:#ff8e7b;line-height:1.7;margin:12px 0}.modal .form-note{text-align:left}.modal .button{margin-top:5px}.promotion-choices{display:flex;gap:9px;margin:24px 0}.promotion-choices button{width:25%;padding:6px;background:#353d2d;border:1px solid var(--lime);border-radius:7px}.promotion-choices img{width:100%;display:block}.promotion-modal{width:380px}.confirm-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:23px}.confirm-actions button{font-size:11px}.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:100;padding:13px 20px;border:1px solid #4a5a3a;border-radius:8px;background:#252d1d;color:#ffffff;box-shadow:0 8px 35px #0008;font-size:12px;max-width:calc(100vw - 32px);width:max-content}.toast.error{border-color:#874a3e;background:#3a201b;color:#ffe3d2}.history-content{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-top:15px;min-height:300px}.history-card{padding:23px;background:var(--surface);border:1px solid var(--line);border-radius:8px}.history-card h2{font-size:20px;margin-bottom:17px}.history-entry{padding:15px 0;border-top:1px solid var(--line);display:flex;align-items:center;gap:12px;width:100%;background:none;border-left:0;border-right:0;border-bottom:0;text-align:left}.history-entry:hover{background:#2e2c28}.history-entry>div{flex:1;min-width:0}.history-entry strong{font-size:12px;display:block;font-weight:500;overflow-wrap:anywhere}.history-entry small{font-size:10px;color:#9b988e;display:block;margin-top:4px}.history-entry>span{color:var(--lime);font-size:15px}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px 24px;gap:15px;background:var(--surface);border:1px solid var(--line);border-radius:10px;grid-column:1/-1}.empty-state .empty-icon{font-size:38px;color:var(--lime);line-height:1}.empty-state p{max-width:330px;color:#aba79e;font-size:12px;line-height:1.8}.empty-state .button{margin-top:10px}.history-card .empty-state{padding:30px 0;border:0}.spinner{width:15px;height:15px;border:2px solid #81b64c44;border-top-color:var(--lime);border-radius:50%;animation:spin .8s linear infinite;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}
@media(min-width:1600px){main{padding-top:40px}.workspace{gap:38px;grid-template-columns:minmax(360px,1fr) 400px;max-width:1380px}.side-panel{margin-top:0}.panel{padding:27px}.board-column{max-width:min(84vh,820px)}.page-intro{margin-bottom:30px}.review-panel{padding:23px}.panel h2{font-size:25px}.review-panel h2{font-size:21px}}
@media(max-width:1220px){.sidebar{width:185px;padding-left:13px;padding-right:13px}.brand{font-size:24px;gap:8px}.brand img{width:34px;height:34px}.sidebar-caption{font-size:8px;letter-spacing:1.1px}.app-shell{margin-left:185px}.topbar{padding:0 28px}main{padding:30px 28px 0}.workspace{gap:23px;grid-template-columns:minmax(260px,1fr) 305px}.panel{padding:20px}.panel h2{font-size:21px}.intro-stamp{display:none}.nav-item{gap:10px}.sidebar-note{display:none}.sidebar-bottom{font-size:8px}.review-panel{padding:17px}.review-panel h2{font-size:20px}}
@media(max-width:980px){.sidebar{width:76px;padding:29px 10px 17px}.brand{margin:0 auto 33px}.brand>span,.sidebar-caption,.nav-item span,.sidebar-note,.sidebar-bottom{display:none}.brand img{width:38px;height:38px}.nav-item{padding:14px;justify-content:center}.nav-item svg{width:23px;height:23px}.app-shell{margin-left:76px}.topbar{height:70px}main{padding-top:27px}.page-intro h1{font-size:30px}.workspace{grid-template-columns:minmax(260px,1fr) 290px;gap:22px}.panel{padding:18px}.panel h2{font-size:20px}.side-panel{gap:15px}.panel>p.muted{font-size:11px;margin-bottom:16px}.color-options button{padding:6px 3px}.form-columns{gap:8px}.segmented{margin:16px 0}.clock{min-width:80px;font-size:22px;padding:4px 9px}.player-identity strong{font-size:12px}.player-identity small{font-size:9px}.player-icon{width:31px;height:31px}.player-identity{gap:8px}.small-card{padding:16px}.small-card-icon{font-size:22px}.panel .button{font-size:11px}.review-panel{padding:16px}.review-panel h2{font-size:18px}.review-tip{font-size:8px}}
@media(max-width:760px){.sidebar{inset:auto 0 0 0;width:100%;height:66px;padding:0 14px;background:var(--sidebar);border-top:1px solid var(--line);border-right:0;z-index:40}.sidebar .brand{display:none}.main-nav{flex-direction:row;align-items:center;height:100%;gap:4px;justify-content:space-around}.nav-item{flex:1;flex-direction:column;gap:3px;padding:8px 4px 7px;height:58px;border:0;border-radius:7px}.nav-item svg{width:21px;height:21px}.nav-item span:not(.nav-key){display:block;font-size:9px}.nav-item.active{background:#2b3323}.nav-item.active .nav-key,.nav-item .nav-key{display:none}.app-shell{margin-left:0;padding-bottom:65px}.topbar{height:65px;padding:0 20px}.breadcrumb{font-size:11px;gap:10px}.breadcrumb:before{content:'';display:block;background:url('/static/chesslab/icon.svg') center/contain no-repeat;width:25px;height:25px;margin-top:-4px}.topbar-actions{gap:6px}.account-button{font-size:11px;gap:6px}.avatar{width:27px;height:27px}.account-menu{right:17px;top:56px}.connection{font-size:8px;max-width:95px}.page-intro{margin-bottom:20px}.page-intro h1{font-size:31px;letter-spacing:-1.3px;max-width:410px}.page-intro p:last-child{font-size:11px;margin-top:9px}.eyebrow{font-size:8px;letter-spacing:1.4px;margin-bottom:9px}main{padding:24px 20px 0}.workspace{grid-template-columns:1fr;max-width:570px;gap:15px}.board-column{max-width:570px}.side-panel{width:100%;margin-top:0;gap:14px}.player-row{min-height:53px}.player-row:first-child{padding-bottom:8px}.player-row:nth-child(3){padding-top:8px}.player-identity strong{font-size:12px}.player-identity small{font-size:10px}.clock{font-size:24px;min-width:89px}.board-toolbar{padding:7px 0}.board-state{font-size:10px}.panel{padding:24px}.panel h2{font-size:25px}.panel>p.muted{font-size:12px}.panel-heading{margin-bottom:15px}.segmented{margin:19px 0}.color-options button{padding:10px 4px;flex-direction:row;justify-content:center;gap:6px;font-size:11px}.color-options img{width:29px;height:29px}.random-piece{font-size:30px}.form-columns{gap:12px}label{font-size:11px;margin-top:15px}.form-columns select{font-size:12px}.small-card{padding:20px}.panel .button{font-size:12px}.move-list{max-height:220px}.review-panel{padding:22px}.review-panel h2{font-size:23px}.review-tip{font-size:10px}.review-graph{height:90px}.grade-count{font-size:9px}.review-navigation .icon-button{width:43px;height:38px;font-size:27px}.review-navigation>span{font-size:11px}.move-explanation h3{font-size:14px}.move-explanation p{font-size:12px}.move-explanation .pv{font-size:10px}.review-moves{max-height:240px}.review-moves .move-row{font-size:14px;min-height:38px}.move-cell{font-size:13px;min-height:34px}.history-content{grid-template-columns:1fr;gap:16px}.toast{bottom:83px}.eval-bar{left:-11px;width:6px}.eval-bar span{left:-3px;font-size:7px}footer{font-size:8px;padding:18px 0 20px;margin-top:25px}footer span:last-child{display:none}.import-actions>span{font-size:9px}.opening-label{font-size:12px}.analysis-progress{font-size:10px}}
@media(max-width:380px){main{padding-left:14px;padding-right:14px}.topbar{padding-left:14px;padding-right:14px}.page-intro h1{font-size:28px}.panel{padding:19px}.board-state{font-size:9px}.account-button{gap:5px}.player-identity small{font-size:9px}.clock{font-size:22px;min-width:81px}.form-columns{gap:8px}.color-options button{font-size:10px;gap:2px}.color-options img{width:25px;height:25px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}
.accuracy-row .accuracy-player-name{font-size:11px;line-height:1.5;font-weight:600;color:#ffffff;letter-spacing:0;max-width:95px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-bottom:5px}.grade-badge{display:inline-flex;width:18px;height:18px;flex-shrink:0;vertical-align:middle;line-height:1}.grade-badge svg{width:100%;height:100%;display:block;stroke:none}.move-cell>.grade-badge,.move-cell>span>.grade-badge{width:17px;height:17px}.move-grade-badge{position:absolute;right:3%;top:3%;z-index:7;width:30%;aspect-ratio:1;pointer-events:none;filter:drop-shadow(0 1px 2px #0005)}.move-grade-badge .grade-badge{width:100%;height:100%}.last-grade-badge{display:inline-flex;align-items:center;gap:6px}.last-grade-badge .grade-badge{width:16px;height:16px}.grade-counts{display:block;max-height:235px;overflow:auto;scrollbar-width:thin;scrollbar-color:#48453e transparent;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:4px 3px 6px;margin-bottom:13px}.grade-count,.grade-count-header{display:grid;grid-template-columns:minmax(0,1fr) 30px 22px 30px;align-items:center;column-gap:6px;padding:4px 1px;min-height:29px}.grade-count:nth-child(odd){background:#242320}.grade-count .grade-name{font-size:10px;color:#aba79d;line-height:1.3}.grade-count b{font-size:13px;font-family:Manrope,sans-serif;font-weight:650;color:inherit;text-align:center;margin:0}.grade-count>.grade-badge{width:20px;height:20px;justify-self:center}.grade-count-header{min-height:22px;font-size:8px;letter-spacing:1px;color:#8a877e;position:sticky;top:-4px;background:#272522;z-index:1}.grade-count-header b{font-size:8px;font-weight:500;text-align:center}.move-explanation h3>.grade-badge{width:22px;height:22px}.accuracy-row .accuracy-center{flex:0 0 auto}.accuracy-row>div:not(.accuracy-center){min-width:0;flex:1}.accuracy-row .accuracy-player-name{align-self:center}.board-state:has(.last-grade-badge)>.status-dot{display:none}
@media(max-width:760px){.grade-counts{max-height:260px}.grade-count,.grade-count-header{grid-template-columns:minmax(0,1fr) 44px 26px 44px;column-gap:10px}.grade-count{min-height:32px}.grade-count .grade-name{font-size:11px}.grade-count>.grade-badge{width:22px;height:22px}.grade-count b{font-size:14px}.accuracy-row .accuracy-player-name{max-width:135px;font-size:12px}}
.engine-disclosure{position:relative;font-size:8px;text-align:right;color:#85827a}.engine-disclosure summary{cursor:pointer}.engine-disclosure>div{position:absolute;right:0;bottom:24px;padding:12px 15px;background:#272522;border:1px solid var(--line);border-radius:6px;min-width:185px;box-shadow:0 8px 25px #0006;z-index:10;text-align:left}.engine-disclosure a{display:block;padding:4px 0;color:#c0baa9;font-size:10px}.engine-disclosure a:hover{text-decoration:underline}