:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#0b0f0d;--bg-raised:#101512;--panel:#151b17;--panel-2:#1a221d;--panel-3:#202a23;--border:#29342d;--border-strong:#3b4a3f;--text:#f2f5ef;--text-soft:#c8d0ca;--muted:#8f9c93;--accent:#c9f27b;--accent-strong:#b7e563;--accent-ink:#18200e;--accent-soft:#c9f27b1a;--green:#6ed492;--green-soft:#6ed4921f;--red:#ff7878;--red-soft:#ff78781f;--amber:#f6c86d;--orange:#f59b62;--shadow-sm:0 1px 2px #00000038;--shadow-lg:0 22px 60px #00000047;--radius-sm:10px;--radius:16px;--radius-lg:22px}*{box-sizing:border-box}html,body{background:var(--bg);width:100%;height:100%;color:var(--text);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;margin:0;padding:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.5;overflow:hidden}button,input,textarea{font:inherit}button,summary,input[type=range]{touch-action:manipulation;-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,textarea:focus-visible{outline-offset:2px;outline:3px solid #c9f27b59}button:disabled{cursor:not-allowed}#root{height:100%}.app{background:radial-gradient(circle at 75% -10%, #52705221, transparent 34%), var(--bg);width:100%;height:100dvh;display:flex;overflow:hidden}.sidebar{z-index:10;border-right:1px solid var(--border);background:#101512f5;flex-direction:column;flex:0 0 260px;padding:24px 18px 18px;display:flex;position:relative;overflow:hidden}.sidebar:before{pointer-events:none;content:"";filter:blur(3px);background:#c9f27b0a;border-radius:50%;width:210px;height:210px;position:absolute;bottom:120px;right:-90px}.brand,.mobile-brand{color:var(--text);text-align:left;cursor:pointer;background:0 0;border:0;align-items:center;padding:0;display:flex}.brand{gap:12px;min-height:48px;margin:0 6px 34px}.brand-mark{width:42px;height:42px;color:var(--accent-ink);background:var(--accent);border-radius:13px;flex:0 0 42px;place-items:center;font-family:Georgia,serif;font-size:28px;line-height:1;display:grid;box-shadow:0 8px 30px #c9f27b1f}.brand-copy,.brand-name,.brand-sub{display:block}.brand-name{letter-spacing:-.01em;font-size:14px;font-weight:720}.brand-sub{max-width:150px;color:var(--muted);margin-top:2px;font-size:10.5px;line-height:1.35}.nav-label{color:#6f7a72;letter-spacing:.14em;text-transform:uppercase;margin:0 12px 9px;font-size:10px;font-weight:700}.primary-nav{flex-direction:column;gap:4px;display:flex}.primary-nav button{width:100%;color:var(--muted);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:11px;align-items:center;gap:11px;padding:10px 12px;font-size:13.5px;font-weight:550;transition:color .16s,background .16s,border-color .16s;display:flex;position:relative}.primary-nav button:hover{color:var(--text);background:#ffffff06}.primary-nav button.active{color:var(--text);background:var(--accent-soft);border-color:#c9f27b21}.primary-nav button.active:after{content:"";background:var(--accent);border-radius:50%;width:4px;height:4px;position:absolute;top:50%;right:9px;transform:translateY(-50%);box-shadow:0 0 12px #c9f27bbf}.nav-icon{flex:0 0 22px;place-items:center;width:22px;height:22px;display:grid}.nav-icon svg{width:19px;height:19px}.primary-nav button.active .nav-icon{color:var(--accent)}.sidebar-summary{border:1px solid var(--border);background:linear-gradient(145deg,#c9f27b14,#ffffff05);border-radius:15px;margin-top:auto;padding:14px;position:relative}.sidebar-summary-top{color:var(--text-soft);align-items:center;gap:7px;margin-bottom:13px;font-size:11.5px;display:flex}.status-dot{background:var(--muted);border-radius:50%;width:7px;height:7px}.status-dot.active,.mobile-status.active:before{background:var(--green);box-shadow:0 0 10px #6ed492b3}.sidebar-summary-stats{grid-template-columns:1fr 1fr;gap:12px;display:grid}.sidebar-summary-stats div{flex-direction:column;min-width:0;display:flex}.sidebar-summary-stats strong{letter-spacing:-.04em;font-size:20px;font-weight:720}.sidebar-summary-stats span{color:var(--muted);letter-spacing:.03em;font-size:9.5px}.sidebar-foot{color:#69746d;margin:13px 7px 0;font-size:10px;line-height:1.5}.content{overscroll-behavior:contain;scrollbar-color:var(--border-strong) transparent;flex:auto;min-width:0;padding:42px 48px 64px;overflow:hidden auto}.content-inner{width:min(100%,1460px);margin:0 auto}.mobile-topbar,.mobile-menu-trigger,.mobile-menu-layer,.tab-panel[hidden]{display:none}.page{animation:.26s both page-in}@keyframes page-in{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}h1,h2,h3,p{text-wrap:pretty}h1{letter-spacing:-.045em;margin:0 0 7px;font-size:clamp(28px,3vw,38px);font-weight:730;line-height:1.08}h2{letter-spacing:-.02em;margin:0 0 13px;font-size:17px;font-weight:680;line-height:1.25}h3{margin:0}.page-sub{max-width:720px;color:var(--muted);margin:0 0 26px;font-size:14px;line-height:1.6}.eyebrow{color:var(--accent);letter-spacing:.16em;text-transform:uppercase;margin-bottom:8px;font-size:10px;font-weight:760;display:block}.panel,.card,.board-wrap{border:1px solid var(--border);box-shadow:var(--shadow-sm);background:linear-gradient(145deg,#181f1af5,#131915f5)}.panel,.card{border-radius:var(--radius);padding:20px}.board-wrap{border-radius:var(--radius);min-width:0;padding:14px;overflow:hidden}.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;display:grid}.card .stat-num{letter-spacing:-.04em;margin:2px 0;font-size:27px;font-weight:730}.card .stat-label,.stat-label{color:var(--muted);letter-spacing:.1em;text-transform:uppercase;font-size:10px;font-weight:700}button.btn{min-height:39px;color:var(--accent-ink);cursor:pointer;background:var(--accent);border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:9px 15px;font-size:13px;font-weight:700;transition:transform .15s,background .15s,border-color .15s,color .15s;display:inline-flex;box-shadow:0 8px 22px #c9f27b14}button.btn svg,.text-action svg,.plan-action svg,.recent-game>svg{width:15px;height:15px}button.btn:hover:not(:disabled){background:var(--accent-strong);transform:translateY(-1px)}button.btn:active:not(:disabled){transform:translateY(0)}button.btn:disabled{opacity:.42;box-shadow:none}button.btn.secondary{color:var(--text);background:var(--panel-2);border-color:var(--border-strong);box-shadow:none}button.btn.secondary:hover:not(:disabled){background:var(--panel-3);border-color:#4a5a4e}button.btn.ghost{color:var(--text-soft);border-color:var(--border);box-shadow:none;background:0 0}button.btn.ghost:hover:not(:disabled){color:var(--text);border-color:var(--border-strong);background:#ffffff06}button.btn.danger{color:var(--red);box-shadow:none;background:0 0;border-color:#ff787847}button.btn.danger:hover:not(:disabled){background:var(--red-soft)}.row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.spacer{flex:1}.muted{color:var(--muted)}.small{font-size:12.5px}.dashboard-hero{border-radius:var(--radius-lg);min-height:280px;box-shadow:var(--shadow-lg);background:linear-gradient(110deg,#c9f27b1c,#0000 48%),linear-gradient(145deg,#19211b,#121713);border:1px solid #334037;grid-template-columns:minmax(0,1fr) 220px;align-items:center;padding:42px 46px;display:grid;position:relative;overflow:hidden}.dashboard-hero:after{pointer-events:none;content:"";border:1px solid #c9f27b14;border-radius:50%;width:360px;height:360px;position:absolute;top:-110px;right:-65px;box-shadow:0 0 0 42px #c9f27b05,0 0 0 92px #c9f27b04}.dashboard-hero-copy{z-index:1;max-width:680px;position:relative}.dashboard-hero h1{max-width:620px;margin-bottom:14px;font-size:clamp(38px,5vw,62px);line-height:.98}.dashboard-hero-copy>p{max-width:590px;color:var(--text-soft);margin:0;font-size:15px;line-height:1.7}.hero-actions{flex-wrap:wrap;gap:10px;margin-top:26px;display:flex}button.hero-primary{min-height:43px;padding-inline:18px}.today-score{z-index:1;flex-direction:column;justify-content:center;align-items:center;display:flex;position:relative}.progress-orbit{background:conic-gradient(var(--accent) var(--progress), #ffffff13 0deg);border-radius:50%;place-items:center;width:126px;height:126px;padding:7px;display:grid;transform:rotate(-90deg)}.progress-orbit>div{background:#151b17;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex;transform:rotate(90deg)}.progress-orbit strong{letter-spacing:-.06em;font-size:34px;font-weight:760;line-height:1}.progress-orbit strong span{color:var(--muted);font-size:16px}.progress-orbit small{color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin-top:6px;font-size:9px;font-weight:700}.today-score>p{max-width:170px;color:var(--muted);text-align:center;margin:13px 0 0;font-size:11.5px}.metric-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin:14px 0;display:grid}.metric-card{border:1px solid var(--border);background:#151b17e0;border-radius:14px;grid-template-columns:36px 1fr;align-items:center;gap:4px 11px;min-width:0;padding:16px;display:grid}.metric-icon{width:36px;height:36px;color:var(--accent);background:var(--accent-soft);border-radius:10px;grid-row:1/span 2;place-items:center;font-size:14px;font-weight:700;display:grid}.metric-card div{align-items:baseline;gap:8px;min-width:0;display:flex}.metric-card strong{letter-spacing:-.04em;font-size:22px;font-weight:730;line-height:1}.metric-card div span{color:var(--text-soft);white-space:nowrap;font-size:11px}.metric-card small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;grid-column:2;font-size:10px;overflow:hidden}.dashboard-grid{grid-template-columns:minmax(0,1.65fr) minmax(290px,.7fr);gap:14px;display:grid}.section-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:17px;display:flex}.section-heading .eyebrow{margin-bottom:5px}.section-heading h2{margin:0;font-size:20px}.section-count{color:var(--muted);background:var(--panel-2);border:1px solid var(--border);white-space:nowrap;border-radius:999px;padding:5px 9px;font-size:10px}.plan-list{flex-direction:column;display:flex}.plan-item{width:100%;color:var(--text);text-align:left;cursor:pointer;border:0;border-bottom:1px solid var(--border);background:0 0;grid-template-columns:28px 38px minmax(0,1fr) auto;align-items:center;gap:12px;padding:13px 4px;transition:background .15s,padding .15s;display:grid}.plan-item:first-child{border-top:1px solid var(--border)}.plan-item:hover{background:#ffffff05;padding-inline:9px}.plan-number{width:25px;height:25px;color:var(--muted);border:1px solid var(--border-strong);border-radius:50%;place-items:center;font-size:10px;font-weight:700;display:grid}.plan-item.done .plan-number{color:var(--accent-ink);background:var(--green);border-color:var(--green)}.plan-icon{width:38px;height:38px;color:var(--text-soft);background:var(--panel-2);border-radius:11px;place-items:center;display:grid}.plan-icon svg{width:19px;height:19px}.plan-copy{flex-direction:column;min-width:0;display:flex}.plan-copy strong{text-overflow:ellipsis;white-space:nowrap;font-size:13px;font-weight:650;overflow:hidden}.plan-copy small{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;margin-top:2px;font-size:10.5px;overflow:hidden}.plan-action{color:var(--accent);white-space:nowrap;align-items:center;gap:5px;font-size:10.5px;font-weight:680;display:inline-flex}.position-card{flex-direction:column;display:flex}.position-card .tag{margin:0}.position-board{border-radius:9px;width:min(100%,240px);margin:1px auto 17px;overflow:hidden;box-shadow:0 16px 36px #00000047}.position-card h3{margin:0 0 4px;font-size:14px;font-weight:680}.position-card>p{color:var(--muted);margin:0 0 12px;font-size:11.5px}.text-action{color:var(--accent);cursor:pointer;background:0 0;border:0;align-self:flex-start;align-items:center;gap:5px;padding:0;font-size:11px;font-weight:680;display:inline-flex}.recent-panel{margin-top:14px}.recent-panel .section-heading{align-items:center}.recent-games{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:9px;display:grid}.recent-game{color:var(--text);text-align:left;cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:11px;grid-template-columns:34px minmax(0,1fr) auto 16px;align-items:center;gap:10px;padding:11px;transition:border-color .15s,transform .15s;display:grid}.recent-game:hover{border-color:var(--border-strong);transform:translateY(-1px)}.game-result-mark{width:34px;height:34px;color:var(--accent);background:var(--accent-soft);border-radius:9px;place-items:center;font-size:13px;font-weight:750;display:grid}.recent-game>span:nth-child(2){flex-direction:column;min-width:0;display:flex}.recent-game strong{text-overflow:ellipsis;white-space:nowrap;font-size:11.5px;overflow:hidden}.recent-game small,.recent-accuracy{color:var(--muted);font-size:9.5px}.recent-accuracy{white-space:nowrap}.play-grid,.train-grid{grid-template-columns:minmax(360px,660px) minmax(280px,340px);align-items:start;gap:20px;display:grid}.analyze-grid{grid-template-columns:260px minmax(360px,650px) minmax(290px,340px);align-items:start;gap:18px;display:grid}.openings-grid{grid-template-columns:280px minmax(360px,650px) minmax(280px,330px);align-items:start;gap:18px;display:grid}.status-bar{grid-template-columns:minmax(0,1fr) 112px minmax(0,1fr);align-items:center;gap:8px;min-height:38px;padding:2px 2px 12px;font-size:12px;display:grid}.player-chip{width:fit-content;max-width:100%;color:var(--text-soft);background:var(--panel-2);border:1px solid var(--border);text-overflow:ellipsis;white-space:nowrap;border-radius:9px;padding:6px 10px;font-size:11px;overflow:hidden}.status-bar .player-chip:last-child{justify-self:end}.player-chip.active-turn{color:var(--accent);background:var(--accent-soft);border-color:#c9f27b4d}.thinking-slot{text-align:center;visibility:hidden;white-space:nowrap;justify-self:center;font-size:11px}.thinking-slot.is-active{visibility:visible}.thinking-slot.is-active:after{content:"";animation:1.2s steps(4,end) infinite dots}@keyframes dots{0%{content:""}25%{content:"."}50%{content:".."}75%{content:"..."}}.movelist{grid-template-columns:repeat(auto-fill,minmax(135px,1fr));gap:3px 10px;max-height:270px;padding:3px;font-size:12.5px;display:grid;overflow-y:auto}.mv{white-space:nowrap;border-radius:6px;padding:4px 6px}.mv .num{color:var(--muted);margin-right:5px}.mv.current{color:var(--accent);background:var(--accent-soft)}.score-pill{border-radius:999px;margin-left:4px;padding:2px 7px;font-size:10.5px}.setting{margin:15px 0}.setting label{color:var(--muted);letter-spacing:.09em;text-transform:uppercase;margin-bottom:7px;font-size:10px;font-weight:700;display:block}input[type=range]{width:100%;accent-color:var(--accent)}.toggle-group{background:var(--bg-raised);border:1px solid var(--border);border-radius:11px;padding:3px;display:inline-flex;overflow:hidden}.toggle-group button{min-height:32px;color:var(--muted);cursor:pointer;background:0 0;border:0;border-radius:8px;padding:6px 12px;font-size:11.5px;font-weight:600}.toggle-group button.sel{color:var(--text);background:var(--panel-3);box-shadow:var(--shadow-sm)}.toggle-group button:disabled{cursor:not-allowed;opacity:.4}.game-item{width:100%;color:var(--text);text-align:left;cursor:pointer;border:1px solid var(--border);background:#ffffff03;border-radius:10px;margin-bottom:7px;padding:10px 11px;font-size:12px;transition:border-color .15s,background .15s}.game-item:hover{border-color:var(--border-strong);background:#ffffff06}.game-item.sel{background:var(--accent-soft);border-color:#c9f27b61}.game-item .meta{color:var(--muted);margin-top:3px;font-size:10.5px}.game-library-item{cursor:default;grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:0;display:grid;overflow:hidden}.game-select{min-width:0;color:var(--text);text-align:left;cursor:pointer;background:0 0;border:0;flex-direction:column;padding:10px 4px 10px 11px;display:flex}.game-select>span:first-child{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.game-delete{color:var(--muted);cursor:pointer;border:0;border-left:1px solid var(--border);background:0 0;align-self:stretch;padding:0 9px;font-size:9.5px}.game-delete:hover{color:var(--red);background:var(--red-soft)}.import-box{border-top:1px solid var(--border);margin-top:13px}.import-box summary{min-height:42px;color:var(--text-soft);cursor:pointer;align-items:center;font-size:11px;font-weight:650;list-style:none;display:flex}.import-box summary::-webkit-details-marker{display:none}.import-box summary:before{color:var(--accent);content:"+";margin-right:7px;font-size:15px}.import-box[open] summary:before{content:"−"}.import-box-body{padding-bottom:2px}.eval-col{align-items:stretch;gap:10px;display:flex}.evalbar{border:1px solid var(--border);background:#353d37;border-radius:7px;width:13px;position:relative;overflow:hidden}.evalbar .white-share{background:#eef2ea;transition:height .22s;position:absolute;bottom:0;left:0;right:0}.board-side{flex:1;min-width:0}.badge{border-radius:999px;padding:2px 7px;font-size:10px;font-weight:650;display:inline-block}.class-best{color:var(--green)}.class-good{color:#a5dc7e}.class-inaccuracy{color:var(--amber)}.class-mistake{color:var(--orange)}.class-blunder{color:var(--red)}.stepper{align-items:center;gap:5px;margin-top:10px;display:flex}.stepper-position{text-align:center;min-width:90px}.stepper-eval{text-align:right;min-width:70px}.stepper button{min-width:34px;min-height:34px;color:var(--text-soft);cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:9px;place-items:center;padding:6px 9px;font-size:12px;display:grid}.stepper button:hover{color:var(--text);border-color:var(--border-strong)}.progress-track{background:var(--panel-3);border-radius:999px;height:7px;margin:12px 0;overflow:hidden}.progress-fill{background:var(--accent);border-radius:inherit;height:100%;transition:width .2s}.coach-note,.comment-box{color:var(--text-soft);background:var(--accent-soft);border:1px solid #c9f27b1f;border-left:3px solid var(--accent);border-radius:10px;margin-top:12px;padding:12px 13px;font-size:12px;line-height:1.6}.accuracy-row{gap:8px;margin:12px 0;display:flex}.accuracy-box{text-align:center;background:var(--panel-2);border:1px solid var(--border);border-radius:10px;flex:1;padding:10px}.accuracy-box .num{letter-spacing:-.04em;font-size:21px;font-weight:730}.accuracy-box .lbl{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;font-size:9px;font-weight:650}.counts-grid{grid-template-columns:1fr 1fr;gap:5px;margin-top:10px;font-size:11px;display:grid}.counts-grid div{background:var(--panel-2);border-radius:7px;justify-content:space-between;padding:6px 8px;display:flex}.puzzle-prompt{color:var(--muted);text-align:center;padding:3px 0 11px;font-size:12.5px}.puzzle-prompt strong{color:var(--text)}.result-banner{text-align:center;border:1px solid #0000;border-radius:10px;margin-top:11px;padding:10px;font-size:12.5px;font-weight:650}.result-banner.ok{color:var(--green);background:var(--green-soft);border-color:#6ed49226}.result-banner.err{color:var(--red);background:var(--red-soft);border-color:#ff787829}.result-banner.neutral{color:var(--text-soft);background:var(--panel-2);border-color:var(--border)}.puzzle-feedback{min-height:51px}.lesson-points{color:var(--text-soft);margin:10px 0 0;padding-left:18px;font-size:12px;line-height:1.7}.lesson-points li{margin-bottom:5px}.tag{color:var(--accent);letter-spacing:.1em;text-transform:uppercase;background:var(--accent-soft);border:1px solid #c9f27b21;border-radius:999px;margin-bottom:8px;padding:3px 7px;font-size:9px;font-weight:720;display:inline-block}.line-path{flex-wrap:wrap;gap:5px;margin:10px 0;display:flex}.line-path .node{color:var(--text-soft);cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:7px;padding:4px 8px;font-size:11px}.line-path .node.ours{color:var(--accent);border-color:#c9f27b59}textarea,input[type=text]{width:100%;color:var(--text);background:var(--bg-raised);border:1px solid var(--border);border-radius:10px;padding:10px 11px;font-size:12px}textarea{resize:vertical;min-height:110px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}textarea::placeholder,input::placeholder{color:#657068}.toast{z-index:70;color:var(--text);background:var(--panel-3);border:1px solid var(--border-strong);box-shadow:var(--shadow-lg);border-radius:10px;padding:10px 16px;font-size:12px;position:fixed;bottom:24px;left:50%;transform:translate(-50%)}.offline-banner{top:max(16px, env(safe-area-inset-top));z-index:90;max-width:calc(100vw - 32px);color:var(--text-soft);white-space:nowrap;border:1px solid var(--border-strong);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#1a221df5;border-radius:999px;align-items:center;gap:8px;padding:9px 13px;font-size:11px;font-weight:650;display:flex;position:fixed;left:50%;transform:translate(-50%)}.offline-banner span{background:var(--amber);border-radius:50%;flex:none;width:7px;height:7px}.modal-overlay{z-index:80;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#040705c7;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{text-align:center;background:var(--panel);border:1px solid var(--border-strong);width:min(100%,460px);box-shadow:var(--shadow-lg);border-radius:18px;padding:28px}.modal h3{letter-spacing:-.025em;margin:0 0 7px;font-size:20px}.modal p{color:var(--muted);margin:6px 0 19px;font-size:13px;line-height:1.6}.promo-row{justify-content:center;gap:9px;display:flex}.promo-row button{width:60px;height:60px;color:var(--text);cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:12px;font-size:32px}.promo-row button:hover{color:var(--accent);border-color:#c9f27b59}@media (width<=1480px){.content{padding-inline:34px}.analyze-grid,.openings-grid{grid-template-columns:250px minmax(360px,1fr)}.analyze-grid>:last-child,.openings-grid>:last-child{grid-column:2}}@media (width<=1180px){.dashboard-hero{padding:34px}.metric-grid{grid-template-columns:repeat(2,1fr)}.play-grid,.train-grid,.analyze-grid,.openings-grid{grid-template-columns:minmax(0,1fr)}.analyze-grid>:last-child,.openings-grid>:last-child{grid-column:auto}.play-grid>div:last-child,.train-grid>div:last-child{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.play-grid>div:last-child>.panel,.train-grid>div:last-child>.panel{margin-bottom:0!important}}@media (width<=900px){.sidebar{display:none}.content{padding:0 20px calc(28px + env(safe-area-inset-bottom));scroll-padding-top:76px}.mobile-topbar{z-index:40;min-height:calc(62px + env(safe-area-inset-top));padding:max(10px, env(safe-area-inset-top)) 20px 10px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#0b0f0ddb;border-bottom:1px solid #29342db3;grid-template-columns:42px minmax(0,1fr) auto;align-items:center;gap:10px;margin-inline:-20px;display:grid;position:sticky;top:0}.mobile-menu-trigger{cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:12px;place-content:center;gap:4px;width:42px;height:42px;padding:0;display:grid}.mobile-menu-trigger span{background:var(--text-soft);border-radius:999px;width:17px;height:1.5px;display:block}.mobile-brand{text-overflow:ellipsis;white-space:nowrap;justify-self:start;min-width:0;font-size:12.5px;font-weight:700;overflow:hidden}.mobile-status{color:var(--muted);align-items:center;gap:6px;font-size:10px;display:flex}.mobile-status:before{content:"";background:var(--muted);border-radius:50%;width:6px;height:6px}.content-inner{padding-top:22px}.mobile-menu-layer{z-index:100;display:block;position:fixed;inset:0}.mobile-menu-backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#030604a8;animation:.17s both menu-fade;position:absolute;inset:0}.mobile-menu-drawer{width:min(84vw,320px);padding:calc(18px + env(safe-area-inset-top)) 16px calc(18px + env(safe-area-inset-bottom));border-right:1px solid var(--border-strong);background:#0f1511fb;flex-direction:column;animation:.21s cubic-bezier(.22,1,.36,1) both menu-slide;display:flex;position:absolute;top:0;bottom:0;left:0;box-shadow:22px 0 60px #0006}.mobile-menu-head{justify-content:space-between;align-items:flex-start;gap:12px;padding:5px 2px 20px;display:flex}.mobile-menu-head>div{flex-direction:column;gap:3px;display:flex}.mobile-menu-head strong{font-size:14px}.mobile-menu-eyebrow{color:var(--accent);letter-spacing:.12em;text-transform:uppercase;font-size:9px;font-weight:750}.mobile-menu-close{width:42px;height:42px;color:var(--text-soft);cursor:pointer;background:var(--panel-2);border:1px solid var(--border);border-radius:12px;flex:none;place-items:center;padding:0;font-size:25px;display:grid}.mobile-menu-nav{flex-direction:column;gap:7px;display:flex}.mobile-menu-nav button{min-height:52px;color:var(--text-soft);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:12px;grid-template-columns:38px minmax(0,1fr);align-items:center;gap:11px;padding:7px 11px;font-size:12px;font-weight:650;display:grid}.mobile-menu-nav button.active{color:var(--accent);background:var(--accent-soft);border-color:#c9f27b26}.mobile-menu-nav .nav-icon{background:var(--panel-2);border-radius:10px;place-items:center;width:38px;height:38px;display:grid}.mobile-menu-nav .nav-icon svg{width:19px;height:19px}.mobile-menu-summary{color:var(--muted);background:var(--panel-2);border:1px solid var(--border);border-radius:13px;grid-template-columns:8px minmax(0,1fr);align-items:center;gap:5px 8px;margin-top:auto;padding:14px;font-size:10px;display:grid}.mobile-menu-summary strong{color:var(--text-soft);grid-column:2;font-size:12px}@keyframes menu-fade{0%{opacity:0}to{opacity:1}}@keyframes menu-slide{0%{opacity:0;transform:translate(-24px)}to{opacity:1;transform:translate(0)}}.offline-banner{top:auto;bottom:calc(16px + env(safe-area-inset-bottom));text-overflow:ellipsis;max-width:calc(100vw - 24px);overflow:hidden}.dashboard-grid{grid-template-columns:minmax(0,1fr)}.position-card{min-height:0}.analysis-library,.repertoire-panel{padding:12px}.analysis-library>h2,.repertoire-panel>h2{margin:0 2px 9px;font-size:13px}.game-strip,.repertoire-strip{scroll-snap-type:x proximity;scrollbar-width:none;gap:8px;margin-inline:-12px;padding:0 12px 5px;scroll-padding-inline:12px;display:flex;overflow-x:auto}.game-strip::-webkit-scrollbar{display:none}.repertoire-strip::-webkit-scrollbar{display:none}.game-strip .game-library-item,.repertoire-strip .game-item{scroll-snap-align:start;flex:0 0 min(76vw,280px);margin:0}.repertoire-strip .game-item{flex-direction:column;justify-content:center;min-height:58px;display:flex}.import-box{margin-top:6px}}@media (width<=680px){.content{padding-inline:14px}.mobile-topbar{margin-inline:-14px;padding-inline:14px}h1{font-size:28px}.page-sub{margin-bottom:20px;font-size:13px}.dashboard-hero{grid-template-columns:minmax(0,1fr);min-height:0;padding:26px 23px}.dashboard-hero:after{opacity:.55}.dashboard-hero h1{max-width:420px;font-size:clamp(37px,12vw,50px)}.dashboard-hero-copy>p{font-size:13px}.today-score{flex-direction:row;justify-content:flex-start;gap:13px;margin-top:28px}.progress-orbit{width:76px;height:76px;padding:5px}.progress-orbit strong{font-size:22px}.progress-orbit strong span{font-size:11px}.progress-orbit small{margin-top:3px;font-size:7px}.today-score>p{text-align:left;max-width:180px;margin:0}.hero-actions{flex-direction:column;align-items:stretch}.hero-actions .btn{width:100%}.metric-grid{gap:8px}.metric-card{grid-template-columns:30px 1fr;gap:3px 8px;padding:12px 10px}.metric-icon{width:30px;height:30px}.metric-card strong{font-size:18px}.metric-card div{flex-direction:column;align-items:flex-start;gap:1px}.metric-card div span{font-size:9px}.metric-card small{font-size:8.5px}.panel,.card{border-radius:14px;padding:16px}.plan-item{grid-template-columns:26px 34px minmax(0,1fr) 15px;gap:8px}.plan-icon{width:34px;height:34px}.plan-action{font-size:0}.plan-action svg{width:15px;height:15px}.plan-copy strong{font-size:12px}.plan-copy small{font-size:9.5px}.recent-games{grid-template-columns:minmax(0,1fr)}.recent-accuracy{display:none}.recent-game{grid-template-columns:34px minmax(0,1fr) 16px}.play-grid>div:last-child,.train-grid>div:last-child{display:block}.play-grid>div:last-child>.panel,.train-grid>div:last-child>.panel{margin-bottom:12px!important}.board-wrap{border-radius:12px;padding:8px}.play-grid>.board-wrap,.train-grid>.board-wrap,.analyze-grid>.board-wrap,.openings-grid>.board-wrap{margin-inline:-8px}button.btn{min-height:44px}.toggle-group button{min-height:42px;padding-inline:15px}.game-item,.line-path .node{min-height:42px}.status-bar{grid-template-columns:minmax(0,1fr) 94px minmax(0,1fr);gap:5px}.status-bar .player-chip{padding-inline:7px}.thinking-slot{font-size:9.5px}.board-actions{grid-template-columns:repeat(3,minmax(0,1fr));gap:7px;display:grid}.board-actions .spacer{display:none}.board-actions .btn{width:100%;padding-inline:7px}.puzzle-actions,.puzzle-actions .btn{width:100%}.stepper{grid-template-columns:repeat(4,minmax(44px,1fr));gap:6px;display:grid;overflow:visible}.stepper button{min-height:44px}.stepper button:first-of-type{grid-area:1/1}.stepper button:nth-of-type(2){grid-area:1/2}.stepper button:nth-of-type(3){grid-area:1/3}.stepper button:nth-of-type(4){grid-area:1/4}.stepper-position{grid-area:2/1/auto/-1;min-width:0;padding-top:2px}.stepper-eval{text-align:center;grid-area:3/1/auto/-1;min-width:0}.stepper .spacer{display:none}.movelist{max-height:190px}textarea{min-height:130px;font-size:16px}input[type=text]{min-height:44px;font-size:16px}.modal{padding:22px 17px}.modal .row{flex-direction:column;justify-content:stretch!important}.modal .row .btn{width:100%}.promo-row button{width:52px;height:52px}.toast{bottom:calc(16px + env(safe-area-inset-bottom))}}@media (width<=390px){.mobile-status{display:none}.mobile-topbar{grid-template-columns:42px minmax(0,1fr)}.dashboard-hero{padding-inline:19px}.metric-card small{display:none}.metric-card{min-height:64px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}