@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/bricolage-grotesque-vietnamese-wght-normal-BUzh504Q.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/bricolage-grotesque-latin-ext-wght-normal-CcLUaPy7.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/assets/bricolage-grotesque-latin-wght-normal-DLoelf7F.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/atkinson-hyperlegible-latin-ext-400-normal-DRk46D-x.woff2)format("woff2"),url(/assets/atkinson-hyperlegible-latin-ext-400-normal-Bbz-b3yf.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:400;src:url(/assets/atkinson-hyperlegible-latin-400-normal-BrHNak5F.woff2)format("woff2"),url(/assets/atkinson-hyperlegible-latin-400-normal-BbWidj28.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/atkinson-hyperlegible-latin-ext-700-normal-BoVPHkS0.woff2)format("woff2"),url(/assets/atkinson-hyperlegible-latin-ext-700-normal-CKkU2Dpt.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Atkinson Hyperlegible;font-style:normal;font-display:swap;font-weight:700;src:url(/assets/atkinson-hyperlegible-latin-700-normal-GZI4o3u0.woff2)format("woff2"),url(/assets/atkinson-hyperlegible-latin-700-normal-BK6Glc0m.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--paper:#e9ece6;--surface:#f6f7f3;--canvas:#dfe3dc;--ink:#1e2b30;--slate:#5f6e70;--rule:#cdd3cb;--sq-light:#dbe2d4;--sq-dark:#7d9683;--marker:#f3b61f;--marker-soft:#f3b61f8c;--good:#2e7a4f;--bad:#b5443b;--display:"Bricolage Grotesque Variable", system-ui, sans-serif;--body:"Atkinson Hyperlegible", system-ui, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;font-family:var(--body);color:var(--ink);background:var(--paper);font-size:17px;line-height:1.5}@media (prefers-color-scheme:dark){:root{--paper:#172024;--surface:#1f2a2f;--canvas:#111a1d;--ink:#e4e9e3;--slate:#93a2a1;--rule:#33424a;--sq-light:#a9b6a1;--sq-dark:#5e7665;--marker-soft:#f3b61f73;--good:#5bb07f;--bad:#e07a70;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark}}*{box-sizing:border-box}body{background:var(--paper);margin:0}a{color:inherit}:focus-visible{outline:3px solid var(--marker);outline-offset:2px}@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}.screen{max-width:480px;padding:calc(16px + env(safe-area-inset-top)) 16px calc(32px + env(safe-area-inset-bottom));margin:0 auto}@media (width>=540px){body{background:var(--canvas)}.screen{background:var(--paper);border-left:1px solid var(--rule);border-right:1px solid var(--rule);min-height:100dvh;box-shadow:0 0 40px -16px #1e2b3038}}.btn.back{padding-left:0}.ico{flex:none;width:18px;height:18px;display:block}.topbar{justify-content:space-between;align-items:center;margin-bottom:28px;display:flex}.topbar .wordmark{margin:0}.avatar{border:1px solid var(--rule);background:var(--surface);cursor:pointer;border-radius:50%;place-items:center;width:44px;height:44px;padding:0;font-size:.9rem;font-weight:700;transition:background-color .15s,border-color .15s,transform .1s;display:grid}.avatar:hover{border-color:var(--slate)}.avatar:active{transform:scale(.96)}.avatar svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linecap:round;width:22px;height:22px}.cta{background:var(--ink);color:var(--paper);font:700 1.2rem var(--display);letter-spacing:-.01em;border-radius:16px;justify-content:space-between;align-items:center;padding:18px 20px;text-decoration:none;transition:transform .1s,opacity .15s,border-color .15s,background-color .15s;display:flex}.cta:active{transform:scale(.985)}.cta-arrow{background:var(--marker);color:#1e2b30;border-radius:50%;place-items:center;width:34px;height:34px;font-size:1.1rem;transition:transform .15s;display:grid}.cta:hover .cta-arrow{transform:translate(2px)}.cta-secondary{background:var(--paper);color:var(--ink);border:1px solid var(--rule)}.cta-quiet{color:var(--ink);border:1px solid var(--rule);background:0 0;margin-top:10px}.cta-secondary:hover,.cta-quiet:hover{border-color:var(--slate)}.cta-secondary .cta-arrow,.cta-quiet .cta-arrow{background:var(--rule);color:var(--ink)}.tagline{font-family:var(--display);letter-spacing:-.02em;margin:8px 0 24px;font-size:1.5rem;font-weight:650;line-height:1.15}.topbar+.tagline{margin-top:-12px}.mode{background:var(--surface);border:1px solid var(--rule);border-radius:18px;margin-bottom:14px;padding:16px;position:relative;overflow:hidden}.mode:before{content:"";pointer-events:none;background:repeating-conic-gradient(var(--sq-dark) 0 25%, transparent 0 50%) 0 0 / 44px 44px;opacity:.35;width:132px;height:132px;position:absolute;top:0;right:0;-webkit-mask-image:radial-gradient(circle at 100% 0,#000 0,#0000 72%);mask-image:radial-gradient(circle at 100% 0,#000 0,#0000 72%)}.mode>*{position:relative}.mode .cta{margin-top:14px}.mode .error{margin:8px 0 0;font-size:.9rem}.mode-name{letter-spacing:.12em;text-transform:uppercase;color:var(--slate);align-items:center;gap:8px;margin:0;font-size:.8rem;display:flex}.mode-text{margin:8px 0 0;font-size:1.05rem}.step-num{background:var(--ink);width:22px;height:22px;color:var(--paper);font:700 .75rem var(--display);letter-spacing:0;border-radius:50%;place-items:center;display:inline-grid}.steps{margin:0 0 8px;padding:0;list-style:none}.steps p{margin:4px 0 16px}.step-title{font:700 1.2rem var(--display);align-items:center;gap:8px;display:flex}.browse{flex-wrap:wrap;align-items:baseline;gap:4px 16px;margin-top:22px;font-size:.9rem;display:flex}.browse a{color:var(--slate);align-items:center;min-height:44px;transition:color .15s;display:inline-flex}.browse a:hover{color:var(--ink)}.pip{background:var(--marker);vertical-align:1px;border-radius:50%;width:8px;height:8px;margin-right:6px;display:inline-block}.drawer{border:0;border-left:1px solid var(--rule);width:82%;max-width:360px;height:100%;max-height:100%;padding:calc(16px + env(safe-area-inset-top)) 20px 20px;background:var(--paper);color:var(--ink);margin:0 0 0 auto;right:max(0px,50vw - 240px);box-shadow:-12px 0 32px #111a1d40}.drawer[open]{animation:.2s cubic-bezier(.2,.8,.2,1) drawer-in}.drawer::backdrop{background:#111a1d73;animation:.18s fade-in}.drawer .wordmark{margin:0}.menu-label{letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin:24px 0 0;font-size:.75rem}.licence{color:var(--slate);margin-top:24px;font-size:.8rem}.licence summary{cursor:pointer;align-items:center;min-height:44px;display:flex}.wordmark{font-family:var(--display);letter-spacing:-.01em;align-items:center;gap:6px;margin:0 0 28px;font-size:1.125rem;font-weight:700;display:inline-flex}.wordmark-knight{width:26px;height:26px;display:inline-block}h1{font-family:var(--display);letter-spacing:-.02em;margin:0 0 16px;font-size:2rem;font-weight:700;line-height:1.1}h2{font-family:var(--display);margin:32px 0 8px;font-size:1.25rem;font-weight:650;line-height:1.2}.headline{font-family:var(--display);letter-spacing:-.025em;margin:4px 0 18px;font-size:2.125rem;font-weight:700;line-height:1.08}.lead{color:var(--slate);margin:0 0 4px}.muted{color:var(--slate);font-size:.9rem}.num{font-variant-numeric:tabular-nums}.good{color:var(--good)}.bad,.error{color:var(--bad)}button,input,select,textarea{font:inherit;color:var(--ink)}.btn{border:1px solid var(--rule);background:var(--surface);cursor:pointer;border-radius:22px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:0 18px;font-weight:700;text-decoration:none;transition:background-color .15s,border-color .15s,transform .1s,opacity .15s;display:inline-flex}.btn:hover:not(:disabled){border-color:var(--slate)}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.45;cursor:default}.btn-primary{background:var(--ink);color:var(--paper);border-color:var(--ink)}.btn-primary:hover:not(:disabled){border-color:var(--ink);opacity:.92}.btn-good{background:var(--good);color:#fff;border-color:var(--good)}.btn-quiet{background:0 0;border-color:#0000}.btn-quiet:hover:not(:disabled){background:color-mix(in srgb, var(--ink) 6%, transparent);border-color:#0000}.btn-danger{color:var(--bad)}.btn-icon{width:44px;padding:0}.btn-block{width:100%}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.spread{justify-content:space-between}.field{color:var(--slate);gap:4px;font-size:.9rem;display:grid}.field input,.field select{border:1px solid var(--rule);background:var(--surface);border-radius:10px;min-height:44px;padding:0 12px}.field select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 20 20' fill='none' stroke='%235f6e70' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5.5 7.5 4.5 4.5 4.5-4.5'/%3E%3C/svg%3E");background-position:right 12px center;background-repeat:no-repeat;padding-right:36px}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{border:1px solid var(--rule);cursor:pointer;background:0 0;border-radius:18px;min-height:36px;padding:0 14px;font-size:.9rem;transition:background-color .15s,border-color .15s,transform .1s}.chip:hover{border-color:var(--slate)}.chip:active{transform:scale(.97)}.chip[aria-pressed=true]{background:var(--ink);color:var(--paper);border-color:var(--ink)}.rows{border-top:1px solid var(--rule);margin:8px 0 0;padding:0;list-style:none}.rows>li{border-bottom:1px solid var(--rule)}.rows a,.rows .rowlike{border-radius:8px;align-items:center;gap:12px;padding:12px 4px;text-decoration:none;transition:background-color .15s;display:flex}.rows a:hover{background:color-mix(in srgb, var(--ink) 4%, transparent)}.rows a>:first-child,.rows .rowlike>:first-child,.rows a>:nth-child(2):not(:last-child),.rows .rowlike>:nth-child(2):not(:last-child){flex:1;min-width:0}.rows a:has(>:nth-child(3))>:first-child{flex:none}.rows .rowlike:has(>:nth-child(3))>:first-child{flex:none}.rows .title{font-weight:700}.rows .sub{color:var(--slate);font-size:.875rem}.rows .end{color:var(--slate);text-align:right;flex:none;font-size:.875rem}.archive-providers{border:1px solid var(--rule);border-radius:14px;gap:6px;margin:24px 0 18px;padding:4px;display:flex}.archive-providers a{text-align:center;border-radius:10px;flex:1;padding:10px;font-weight:700;text-decoration:none;transition:background-color .15s}.archive-providers a[aria-current=page]{background:var(--ink);color:var(--paper)}.archive-account{background:var(--surface);border:1px solid var(--rule);border-radius:16px;margin:16px 0 24px;padding:18px}.archive-account .field{margin-top:16px}.archive-account .muted{margin:12px 0}.archive-account summary{cursor:pointer;justify-content:space-between;align-items:center;gap:8px;min-height:30px;list-style:none;display:flex}.archive-account summary::-webkit-details-marker{display:none}.archive-account summary:after{content:"";background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%235f6e70' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5.5 7.5 4.5 4.5 4.5-4.5'/%3E%3C/svg%3E") 50%/contain no-repeat;flex:none;width:16px;height:16px;transition:transform .2s}.archive-account[open] summary{margin-bottom:14px}.archive-account[open] summary:after{transform:rotate(180deg)}.archive-account summary .archive-tag{margin-left:auto}.archive-username{font:700 1.3rem var(--display);overflow-wrap:anywhere;margin:16px 0}.archive-tag{color:var(--slate);border:1px solid var(--rule);border-radius:20px;padding:3px 9px;font-size:.75rem}.archive-browser h2{margin:0}.archive-browser{padding-bottom:12px}.archive-sync{margin-top:12px;font-size:.9rem}.archive-loading{margin-top:10px}.archive-loading .muted{margin:6px 0;font-size:.8rem}.archive-scope{margin-top:6px;font-size:.8rem}.archive-filters{gap:12px;margin:20px 0 8px;display:grid}.archive-date-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px;display:grid}.archive-date-grid input{width:100%;min-width:0}.archive-dates summary{cursor:pointer;justify-content:space-between;align-items:center;min-height:44px;font-size:.9rem;display:flex}.archive-dates summary span{color:var(--slate);font-size:.8rem}.archive-dates .chips{margin-top:10px}.archive-check{cursor:pointer;align-items:center;gap:9px;min-height:44px;font-size:.9rem;display:inline-flex}.archive-check input,.archive-game input,.toggle input{appearance:none;border:1.5px solid var(--rule);background:var(--surface);cursor:pointer;border-radius:6px;flex-shrink:0;place-items:center;width:20px;height:20px;margin:0;transition:background-color .12s,border-color .12s;display:inline-grid}.archive-check input:checked,.archive-game input:checked,.toggle input:checked{background:var(--ink);border-color:var(--ink);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23f6f7f3' stroke-width='2.3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3.5 8.5 3 3 6-6.5'/%3E%3C/svg%3E")}@media (prefers-color-scheme:dark){.archive-check input:checked,.archive-game input:checked,.toggle input:checked{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none' stroke='%23172024' stroke-width='2.3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m3.5 8.5 3 3 6-6.5'/%3E%3C/svg%3E")}}.archive-list-heading{padding:8px 0}.archive-games{border-top:1px solid var(--rule);margin:0;padding:0;list-style:none}.archive-games>li{border-bottom:1px solid var(--rule);border-radius:6px;align-items:center;display:flex}.archive-games .is-selected{background:color-mix(in srgb, var(--marker) 13%, transparent)}.archive-game{cursor:pointer;flex:1;align-items:center;gap:10px;min-width:0;padding:16px 4px;display:flex}.archive-game .result{flex-shrink:0;width:28px;height:28px}.archive-game-text{overflow-wrap:anywhere;gap:3px;min-width:0;line-height:1.3;display:grid}.archive-game-text .sub{color:var(--slate);font-size:.8rem}.archive-game-state{color:var(--slate);margin-top:3px;font-size:.75rem}.is-imported .archive-game{opacity:.55;cursor:default}.archive-open{min-width:36px;min-height:44px;color:var(--slate);place-items:center;text-decoration:none;display:grid}.archive-open:hover{color:var(--ink)}.archive-empty{text-align:center;padding:32px 12px}.archive-empty .headline{font-size:1.5rem}.archive-pagination{margin:20px 0}.archive-pagination .btn{padding:0 12px}.archive-selection{z-index:2;padding:10px 0 max(10px, env(safe-area-inset-bottom));background:var(--paper);border-top:1px solid var(--rule);box-shadow:0 -12px 16px var(--paper);position:sticky;bottom:0}.archive-selection>.row{min-height:44px;margin-bottom:6px}.archive-selection small{color:var(--slate);font-size:.75rem;display:block}.archive-selection p{text-align:center;color:var(--slate);margin:8px 0 0;font-size:.75rem}.result{width:32px;height:32px;font:700 1rem var(--display);border-radius:8px;flex:none;place-items:center;display:grid}.result svg{width:26px;height:26px;display:block}.result-toppled{display:block;transform:rotate(90deg)}.result-win{background:color-mix(in srgb, var(--good) 18%, transparent);color:var(--good)}.result-loss{background:color-mix(in srgb, var(--bad) 16%, transparent);color:var(--bad)}.result-draw,.result-unknown{background:color-mix(in srgb, var(--slate) 18%, transparent);color:var(--slate)}.halo-dot{background:radial-gradient(circle, var(--marker) 0 35%, color-mix(in srgb, var(--marker) 35%, transparent) 36% 100%);border-radius:50%;flex:none;width:14px;height:14px}.sq-inner{width:100%;height:100%;position:relative}.sq-halo:before,.mini>span.halo:before{content:"";pointer-events:none;background:radial-gradient(circle,#f3b61ff2 0 32%,#f3b61f73 46%,#0000 68%);border-radius:50%;animation:3.2s ease-in-out infinite breathe;position:absolute;inset:-38%}.sq-halo>*{z-index:1;position:relative}@keyframes breathe{50%{opacity:.78;transform:scale(.88)}}.panel{background:var(--surface);border:1px solid var(--rule);border-radius:16px;margin:12px 0;padding:16px}.skeleton-list{gap:12px;margin:16px 0;display:grid}.skeleton-row{background:var(--surface);border:1px solid var(--rule);border-radius:14px;height:68px;animation:1.6s ease-in-out infinite pulse}.board-placeholder{aspect-ratio:1;background:var(--surface);border:1px solid var(--rule);border-radius:6px;margin-top:12px;animation:1.6s ease-in-out infinite pulse}@keyframes pulse{50%{opacity:.45}}.analysis{grid-template-columns:14px minmax(0,1fr);gap:8px;margin:12px 0 8px;display:grid}.evalbar{border:1px solid var(--rule);--side-white:#eef0ea;--side-black:#2a3236;border-radius:4px;position:relative;overflow:hidden}.evalbar>div{transition:height .35s;position:absolute;inset:auto 0 0}.evalbar-white{background:var(--side-black)}.evalbar-white>div,.evalbar-black{background:var(--side-white)}.evalbar-black>div{background:var(--side-black)}.board-frame{border:1px solid var(--rule);border-radius:6px;overflow:hidden;box-shadow:0 2px 8px -2px #1e2b301f}.board-frame svg path[stroke="rgba(181, 68, 59, .85)"]{stroke-dasharray:80 48;stroke-linecap:round}.board-action{align-items:center;min-height:44px;margin:6px 0;display:flex}.board-action p{margin:0}.evalline{align-items:baseline;gap:10px;min-width:0;min-height:28px;display:flex}.evalline .score{font-family:var(--display);flex:none;font-size:1.375rem;font-weight:700}.evalline-pv{white-space:nowrap;text-overflow:ellipsis;flex:1;min-width:0;overflow:hidden}.toggle{color:var(--slate);cursor:pointer;align-items:center;gap:8px;min-height:36px;font-size:.9rem;display:inline-flex}.moves{flex-wrap:wrap;gap:4px;margin:8px 0;display:flex}.move{cursor:pointer;background:0 0;border:none;border-radius:8px;padding:4px 8px;font-size:.95rem;transition:background-color .12s}.move:hover:not(:disabled){background:color-mix(in srgb, var(--ink) 7%, transparent)}.move[aria-current=true]{background:var(--ink);color:var(--paper)}.move-root,.move-marked{box-shadow:inset 0 0 0 2px var(--marker)}.move-explore{font-style:italic}.verdict{grid-template-columns:1fr 1fr;gap:8px;margin:12px 0;display:grid}.verdict>div{background:var(--surface);border:1px solid var(--rule);border-radius:12px;padding:10px 12px}.verdict .label{color:var(--slate);font-size:.8rem}.verdict .san{font-family:var(--display);font-size:1.25rem;font-weight:700}textarea.note{border:1px solid var(--rule);background:var(--surface);resize:vertical;border-radius:12px;width:100%;min-height:110px;padding:12px;line-height:1.55}.empty{color:var(--slate);padding:32px 0}.empty p{margin:0 0 16px}.answer{background:var(--surface);border:1px solid var(--rule);border-radius:14px;margin-top:12px;padding:12px 14px}.answer p{margin:0 0 8px}.answer .san{font-family:var(--display);letter-spacing:-.02em;font-size:1.5rem;font-weight:750}.note-text{white-space:pre-line}.banner{background:var(--surface);border:1px solid var(--rule);border-radius:14px;align-items:center;gap:10px;margin:12px 0;padding:10px 12px;font-size:.9rem;display:flex}.banner .btn{flex:none;margin-left:auto}.graph{border:1px solid var(--rule);background:#2a3236;border-radius:12px;height:96px;margin:14px 0;position:relative}.graph svg{border-radius:11px;width:100%;height:100%;display:block}.graph-area{fill:#eef0ea}.graph-line{fill:none;stroke:#8a9692;stroke-width:1.5px;vector-effect:non-scaling-stroke}.graph-mid{stroke:#8a9692;stroke-dasharray:3 3;vector-effect:non-scaling-stroke}.graph-now{stroke:var(--marker);stroke-width:2px;vector-effect:non-scaling-stroke}.graph-dot{cursor:pointer;background:0 0;border:0;place-items:center;width:30px;height:30px;margin:-15px 0 0 -15px;padding:0;display:grid;position:absolute}.graph-dot:after{content:"";border:2.5px solid var(--marker);background:#eef0ea;border-radius:50%;width:12px;height:12px;transition:transform .15s;box-shadow:0 0 0 1.5px #2a3236}.graph-dot:hover:after{transform:scale(1.2)}.graph-dot-kept:after{background:var(--marker)}.video{aspect-ratio:16/11;background:var(--sq-dark);border:1px solid var(--rule);border-radius:18px;margin-bottom:20px;position:relative;overflow:hidden}.video img{object-fit:cover;width:100%;height:100%;display:block}.video:after{content:"";background:linear-gradient(#111a1d00 45%,#111a1db3);position:absolute;inset:0}.video-soon{z-index:1;letter-spacing:.1em;text-transform:uppercase;color:#f6f7f3;background:#111a1d8c;border-radius:999px;padding:3px 8px;font-size:.7rem;position:absolute;top:12px;right:12px}.video-caption{z-index:1;color:#f6f7f3;font-family:var(--display);position:absolute;bottom:12px;left:14px}textarea.paste{border:1.5px solid var(--ink);background:var(--surface);resize:vertical;border-radius:14px;width:100%;min-height:140px;padding:12px;font:.8rem/1.45 ui-monospace,SF Mono,Menlo,monospace}.detected{align-items:center;gap:8px;margin:8px 0;font-size:.9rem;display:flex}.detected .ok{background:var(--good);color:#fff;border-radius:50%;flex:none;place-items:center;width:20px;height:20px;font-size:.75rem;display:grid}.sides{grid-template-columns:1fr 1fr;gap:8px;display:grid}.side{border:1px solid var(--rule);background:var(--surface);cursor:pointer;text-align:left;border-radius:12px;align-items:center;gap:10px;min-height:52px;padding:8px 12px;transition:border-color .15s,transform .1s;display:flex}.side:hover{border-color:var(--slate)}.side:active{transform:scale(.98)}.side[aria-checked=true]{border:2px solid var(--ink)}.side small{color:var(--slate);overflow-wrap:anywhere;font-size:.8rem;display:block}.disc{border:1.5px solid var(--ink);border-radius:50%;flex:none;width:18px;height:18px}.disc-white{background:#fbfcf8}.disc-black{border-color:var(--slate);background:#1e2b30}.upload{margin:12px 0;padding-left:0}.mini{aspect-ratio:1;border:1px solid var(--rule);border-radius:5px;flex:none;grid-template-columns:repeat(8,1fr);width:54px;display:grid;overflow:hidden}.mini>span{background:var(--sq-light);display:grid;position:relative}.mini>span.d{background:var(--sq-dark)}.mini svg{width:100%;height:100%;position:relative}.mini>span.halo{z-index:1}input.search{border:1px solid var(--rule);background:var(--surface);border-radius:12px;width:100%;min-height:44px;margin-bottom:10px;padding:0 14px}.chip .num{opacity:.6;margin-left:2px}.list{margin:12px 0 0;padding:0;list-style:none}.item{border-bottom:1px solid var(--rule);border-radius:8px;align-items:center;gap:12px;padding:11px 4px;text-decoration:none;transition:background-color .15s;display:flex}.item:hover{background:color-mix(in srgb, var(--ink) 4%, transparent)}.item-text{flex:1;gap:2px;min-width:0;display:grid}.item b{font-family:var(--display);font-weight:650;line-height:1.2}.item .sub{color:var(--slate);white-space:nowrap;text-overflow:ellipsis;font-size:.875rem;overflow:hidden}.item .meta{color:var(--slate);align-items:center;gap:10px;font-size:.78rem;display:flex}.empty-image{border-radius:16px;width:100%;height:auto;margin-bottom:16px}.grab{background:var(--rule);border-radius:2px;width:38px;height:4px;margin:0 auto 10px}.sheet{border:0;border-top:1px solid var(--rule);width:100%;max-width:480px;max-height:90dvh;padding:12px 16px calc(20px + env(safe-area-inset-bottom));background:var(--paper);color:var(--ink);border-radius:24px 24px 0 0;margin:auto auto 0;overflow-y:auto}.sheet[open]{animation:.2s cubic-bezier(.2,.8,.2,1) sheet-in}.sheet::backdrop{background:#111a1d73;animation:.18s fade-in}@keyframes sheet-in{0%{transform:translateY(100%)}}@keyframes drawer-in{0%{transform:translate(100%)}}@keyframes fade-in{0%{opacity:0}}.rows .rowlike button.plain{text-align:left;cursor:pointer;background:0 0;border:0;padding:0}.stepper{align-items:center;gap:6px;margin:8px 0 4px;display:flex}.stepper-moves{flex:1;justify-content:center;gap:2px;display:flex;overflow:hidden}.stepper .move{white-space:nowrap}.empty .headline{color:var(--ink)}.big-progress{background:var(--rule);border-radius:999px;height:10px;margin:8px 0 12px;position:relative;overflow:hidden}.big-progress i{background:var(--marker);border-radius:inherit;height:100%;transition:width .4s;display:block}.big-progress.is-indeterminate i{width:38%;animation:1.3s ease-in-out infinite indeterminate}@keyframes indeterminate{0%{transform:translate(-100%)}to{transform:translate(260%)}}.eyebrow{letter-spacing:.12em;text-transform:uppercase;color:var(--slate);margin:0;font-size:.75rem}.phases-bar{background:var(--surface);border:1px solid var(--rule);border-radius:10px;gap:3px;height:28px;margin-top:10px;display:flex;overflow:hidden}.phases-legend{color:var(--slate);flex-wrap:wrap;gap:6px 18px;margin:10px 0 4px;padding:0;font-size:.9rem;list-style:none;display:flex}.phases-legend b{color:var(--ink);font-family:var(--display);font-size:1.25rem}.phases-legend i{border-radius:3px;width:10px;height:10px;margin-right:6px;display:inline-block}.phases-to_review{background:var(--marker)}.phases-in_training{background:var(--slate)}.phases-mastered{background:var(--good)}.banner-stack{display:block}.banner-stack details{color:var(--slate);margin-top:4px}.banner-stack summary{cursor:pointer;align-items:center;min-height:32px;display:flex}.failures{margin:4px 0 0;padding-left:18px;font-size:.8rem}.mode-name+.row h1,.mode-name+h1{margin-top:4px}.hint{color:var(--slate);border-left:3px solid var(--marker);margin:6px 0 0;padding-left:10px;font-size:.875rem}.decide{grid-template-columns:1fr 1fr;gap:10px;margin-top:20px;display:grid}.answer .verdict-line{font-family:var(--display);letter-spacing:-.02em;font-size:1.5rem;font-weight:750}.evals{border-collapse:collapse;margin:0 0 10px}.evals td{padding:2px 14px 2px 0}.evals .san{font-family:var(--display);font-size:1.05rem;font-weight:700}.move-note{border-top:1px solid var(--rule);margin-top:12px;padding-top:10px}.context-line{white-space:nowrap;align-items:baseline;gap:6px;display:flex}.context-line b{flex:none}.context{text-overflow:ellipsis;min-width:0;overflow:hidden}.ask{box-shadow:inset 0 0 0 1.5px var(--marker);color:var(--ink);border-radius:6px;flex:none;padding:0 6px;font-weight:700}.ask-here{background:var(--marker);color:#1e2b30}.context .current{color:var(--ink);font-weight:700}.spot-ref{margin-top:24px;font-size:.8rem}.move-chart-figure{background:var(--surface);border:1px solid var(--rule);border-radius:14px;margin:8px 0 12px;padding:10px 12px}.move-chart-figure figcaption{margin-top:4px}.move-chart{width:100%;height:auto;display:block;overflow:visible}.mc-mid{stroke:var(--rule);stroke-width:1px;stroke-dasharray:3 3}.mc-mid-label{fill:var(--slate);font-size:10px;font-family:var(--body)}.mc-line{fill:none;stroke:var(--slate);stroke-width:1.5px;opacity:.5}.mc-dot{fill:var(--slate);transition:r .12s,fill .12s}.mc-dot-picked{fill:var(--ink);stroke:var(--marker);stroke-width:2px}.mc-hit{fill:#0000;cursor:pointer}.mc-best{fill:var(--good);stroke:var(--surface);stroke-width:2px}.mc-game{stroke:var(--bad);stroke-width:3px;stroke-linecap:round}.mc-now{fill:none;stroke:var(--marker);stroke-width:3px}textarea.note.drafting{border-color:var(--marker);background:linear-gradient(100deg, var(--surface) 35%, color-mix(in srgb, var(--marker) 22%, var(--surface)) 50%, var(--surface) 65%);background-size:300% 100%;animation:1.6s ease-in-out infinite drafting}@keyframes drafting{0%{background-position:100% 0}to{background-position:0 0}}@media (prefers-reduced-motion:reduce){textarea.note.drafting{animation:none}}.graph{cursor:pointer}.shown-move{min-height:112px;margin:8px 0}.shown-move p{margin:0 0 6px}.graph-tick{pointer-events:none;background:#8a9692;border-radius:50%;width:3px;height:3px;position:absolute;transform:translate(-50%,-50%)}.mc-name{fill:var(--ink);font:700 11px var(--body);paint-order:stroke;stroke:var(--surface);stroke-width:3px;stroke-linejoin:round}.mc-title{fill:var(--slate);font:10px var(--body);paint-order:stroke;stroke:var(--surface);stroke-width:4px;stroke-linejoin:round}.mc-callouts{gap:6px;margin:6px 0 0;padding:0;font-size:.9rem;list-style:none;display:grid}.mc-callouts li{text-align:center;white-space:nowrap;flex-direction:column;align-items:center;gap:1px;min-width:0;display:flex}.mc-callouts li:first-child{text-align:left;align-items:flex-start}.mc-callouts li:last-child{text-align:right;align-items:flex-end}.mc-callouts .muted{align-items:center;gap:4px;font-size:.72rem;display:inline-flex}.mc-dot.mc-dot-ok{fill:var(--good)}.mc-dot.mc-dot-weak{fill:var(--marker)}.mc-dot.mc-dot-bad{fill:var(--bad)}.mc-swatch{border-radius:50%;width:8px;height:8px;margin:0 2px 0 6px;display:inline-block}.mc-swatch:first-child{margin-left:0}.mc-swatch.mc-dot-ok{background:var(--good)}.mc-swatch.mc-dot-weak{background:var(--marker)}.mc-swatch.mc-dot-bad{background:var(--bad)}.mc-pending{position:relative}.mc-pending .move-chart{filter:blur(3px);opacity:.45}.mc-pending-text{color:var(--ink);justify-content:center;align-items:center;margin:0;font-size:.9rem;display:flex;position:absolute;inset:0}.visually-hidden{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.link{cursor:pointer;font:inherit;color:inherit;text-underline-offset:3px;background:0 0;border:0;padding:0;text-decoration:underline}.link:disabled{opacity:.45;cursor:default}.signin{background:var(--paper);flex-direction:column;max-width:480px;min-height:100dvh;margin:0 auto;display:flex}@media (width>=540px){.signin{border-left:1px solid var(--rule);border-right:1px solid var(--rule);box-shadow:0 0 40px -16px #1e2b3038}}.signin-hero{aspect-ratio:4/3;width:100%;max-height:42dvh;position:relative;overflow:hidden}.signin-hero img{object-fit:cover;object-position:55% 60%;width:100%;height:100%;animation:1.6s ease-out both signin-settle;display:block}.signin-hero:before,.signin-hero:after{content:"";pointer-events:none;position:absolute;inset:0}.signin-hero:before{background:linear-gradient(#0a10128c,#0000 38%)}.signin-hero:after{background:linear-gradient(to top, var(--paper) 2%, transparent 48%)}.signin-wordmark{z-index:1;top:calc(16px + env(safe-area-inset-top));color:#f6f7f3;--ink:#f6f7f3;--paper:#1e2b30;margin:0;position:absolute;left:16px}@keyframes signin-settle{0%{opacity:.6;transform:scale(1.06)}to{opacity:1;transform:none}}.signin-body{padding:4px 24px calc(28px + env(safe-area-inset-bottom));flex-direction:column;flex:1;animation:.5s ease-out .1s both signin-rise;display:flex}@keyframes signin-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.signin-title{letter-spacing:-.03em;text-wrap:balance;margin:8px 0 12px;font-size:2.25rem;line-height:1.04}.signin-body .lead{margin-bottom:24px}.signin-providers{gap:10px;display:grid}.signin-provider{cursor:pointer;border:1px solid var(--rule);background:var(--surface);min-height:52px;color:var(--ink);border-radius:14px;justify-content:center;align-items:center;gap:12px;padding:0 20px;font-size:1rem;font-weight:700;transition:border-color .15s,transform .1s,box-shadow .15s,opacity .15s;display:flex;position:relative}.signin-provider svg{width:20px;height:20px;position:absolute;left:20px}.signin-provider:hover:not(:disabled){border-color:var(--slate);box-shadow:0 2px 10px -6px #1e2b3059}.signin-provider:active:not(:disabled){transform:scale(.985)}.signin-provider:disabled{opacity:.5;cursor:default}.signin-provider[aria-busy=true]{opacity:1}.signin-google{color:#1f1f1f;background:#fff;border-color:#dadce0}.signin-apple,.signin-github{background:var(--ink);color:var(--paper);border-color:var(--ink)}.signin-facebook{color:#fff;background:#1877f2;border-color:#1877f2}.signin-facebook:hover:not(:disabled){opacity:.92;border-color:#1877f2}.signin-microsoft{background:var(--surface)}.signin-apple:hover:not(:disabled),.signin-github:hover:not(:disabled){border-color:var(--ink);opacity:.92}.signin-divider{color:var(--slate);letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:12px;margin:22px 0 14px;font-size:.8rem;display:flex}.signin-divider:before,.signin-divider:after{content:"";background:var(--rule);flex:1;height:1px}.signin-email{gap:10px;display:grid}.signin-email input{min-height:52px;color:var(--ink);border-radius:14px;padding:0 16px;font-size:1rem}.signin-email .btn{border-radius:14px;min-height:52px}.signin-hint{text-align:center;margin:2px 0 0}.signin-confirm{margin:0 0 4px}.signin-error{color:var(--bad);background:color-mix(in srgb, var(--bad) 9%, var(--surface));border:1px solid color-mix(in srgb, var(--bad) 30%, transparent);border-radius:12px;margin:0 0 16px;padding:12px 14px;font-size:.95rem}.signin-sent{background:var(--surface);border:1px solid var(--rule);text-align:center;border-radius:16px;padding:24px 20px}.signin-sent h2{margin:12px 0 6px}.signin-sent p{margin:0 0 14px}.signin-sent-icon{background:var(--marker-soft);border-radius:50%;place-items:center;width:52px;height:52px;display:inline-grid}.signin-sent-icon svg{fill:none;width:26px;height:26px;stroke:var(--ink);stroke-width:1.8px;stroke-linecap:round;stroke-linejoin:round}.signin-footer{text-align:center;margin:auto 0 0;padding-top:28px}.avatar img,.profile-picture img{object-fit:cover;border-radius:50%;width:100%;height:100%;display:block}.avatar:has(img){overflow:hidden}.profile{background:var(--surface);border:1px solid var(--rule);border-radius:16px;align-items:center;gap:12px;margin:4px 0 24px;padding:14px;display:flex}.profile-picture{background:var(--marker-soft);border-radius:50%;flex:none;place-items:center;width:44px;height:44px;font-weight:700;display:grid;overflow:hidden}.profile-text{flex:1;min-width:0}.profile-text b,.profile-text span{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.profile-text span{color:var(--slate);font-size:.85rem}