/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,::backdrop,:after,:before{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial}}}@layer theme{:host,:root{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";--font-mono:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace;--shadow-sm:0 1px 3px 0 #0000001a,0 1px 2px -1px #0000001a;--default-transition-duration:.15s;--default-transition-timing-function:cubic-bezier(.4,0,.2,1);--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,::backdrop,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}:host,html{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue","Noto Sans",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,pre,samp{font-family:var(--default-mono-font-family,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,"Liberation Mono","Courier New",monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}menu,ol,ul{list-style:none}audio,canvas,embed,iframe,img,object,svg,video{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,optgroup,select,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit,::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-day-field,::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-hour-field,::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-millisecond-field,::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button,::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.block{display:block}.flex{display:flex}.hidden{display:none}.table{display:table}.shrink{flex-shrink:1}.transform{transform:var(--tw-rotate-x,) var(--tw-rotate-y,) var(--tw-rotate-z,) var(--tw-skew-x,) var(--tw-skew-y,)}.transition{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to,opacity,box-shadow,transform,translate,scale,rotate,filter,-webkit-backdrop-filter,backdrop-filter,display,content-visibility,overlay,pointer-events;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}}:root{--bg:#f5f3fb;--bg-dot:#5b3df512;--ink:#17142b;--muted:#615c78;--faint:#b2adc6;--accent:#5b3df5;--accent-deep:#3d22c9;--accent-ink:#fff;--accent-soft:#ece8ff;--coral:#ff6b4a;--coral-soft:#ffe8e1;--mint:#12b886;--mint-soft:#dcf7ec;--sun:#f5a524;--sun-soft:#fff1d6;--line:#17142b17;--line-strong:#17142b29;--fill:#5b3df514;--material:#ffffffd1;--material-strong:#fffffff5;--paper:#fff;--shadow-sm:0 1px 2px #17142b0f,0 2px 6px #17142b0a;--shadow:0 2px 4px #17142b0a,0 18px 44px #2d1e781a;--edge:#ffffffb3;--scrim:#120e286b;--good:#0f9f6e;--bad:#e5383b;--radius:20px;--font:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,"Helvetica Neue",sans-serif;--font-display:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,BlinkMacSystemFont,sans-serif;--mono:ui-monospace,"Cascadia Code","SF Mono",Menlo,Consolas,monospace;color-scheme:light;font:100%/1.55 var(--font);background:var(--bg);color:var(--ink)}@media (prefers-color-scheme:dark){:root{--bg:#0e0c19;--bg-dot:#a08cff12;--ink:#f2f0fa;--muted:#a39fba;--faint:#5f5a78;--accent:#8f7bff;--accent-deep:#6a52f0;--accent-ink:#0e0b22;--accent-soft:#8f7bff29;--coral:#ff8a6e;--coral-soft:#ff8a6e24;--mint:#3ddca4;--mint-soft:#3ddca421;--sun:#ffc35c;--sun-soft:#ffc35c21;--line:#ffffff17;--line-strong:#ffffff29;--fill:#8f7bff1f;--material:#161326d1;--material-strong:#1a172cf7;--paper:#18152a;--shadow-sm:0 1px 2px #0006;--shadow:0 2px 4px #0000004d,0 18px 44px #00000073;--edge:#ffffff14;--scrim:#0009;--good:#3ddca4;--bad:#ff7b7d;color-scheme:dark}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:radial-gradient(circle at 1px 1px,var(--bg-dot) 1px,transparent 0) 0 0 /22px 22px,radial-gradient(1200px 500px at 85% -10%,var(--accent),transparent 70%),radial-gradient(900px 420px at -10% 0,var(--coral),transparent 70%),var(--bg);flex-direction:column;min-height:100vh;margin:0;display:flex}@supports (color:color-mix(in lab,red,red)){body{background:radial-gradient(circle at 1px 1px,var(--bg-dot) 1px,transparent 0) 0 0 /22px 22px,radial-gradient(1200px 500px at 85% -10%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 70%),radial-gradient(900px 420px at -10% 0,color-mix(in srgb,var(--coral) 7%,transparent),transparent 70%),var(--bg)}}body{-webkit-font-smoothing:antialiased}main{flex:1}button,input{font:inherit;color:inherit}a{color:var(--accent);text-decoration:none}a:hover{text-underline-offset:.18em;text-decoration:underline}::selection{background:var(--accent)}@supports (color:color-mix(in lab,red,red)){::selection{background:color-mix(in srgb,var(--accent) 26%,transparent)}}:focus-visible{outline:2.5px solid var(--accent);outline-offset:3px;border-radius:8px}.skip{background:var(--paper);z-index:80;border-radius:999px;padding:.5rem .8rem;position:absolute;top:-4rem;left:1rem}.skip:focus{top:.6rem}.nums{font-variant-numeric:tabular-nums}.display{font-family:var(--font-display);letter-spacing:-.04em;margin:0;font-size:clamp(2.7rem,6.4vw,4.6rem);font-weight:750;line-height:1.02}.lede{color:var(--muted);max-width:40rem;font-size:1.15rem;line-height:1.55}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.025em;font-weight:700}h1{letter-spacing:-.035em;font-size:clamp(1.9rem,3.4vw,2.6rem);line-height:1.08}h1,h2{margin:0}h2{font-size:1.3rem;line-height:1.2}.eyebrow{color:var(--accent);letter-spacing:.1em;text-transform:uppercase;align-items:center;gap:.45rem;margin:0 0 .7rem;font-size:.78rem;font-weight:700;display:inline-flex}.eyebrow:before{content:"";background:currentColor;border-radius:3px;width:.5rem;height:.5rem;transform:rotate(45deg)}.muted{color:var(--muted)}.material{background:var(--material);-webkit-backdrop-filter:blur(14px)saturate(160%)}.material-strong{background:var(--material-strong);-webkit-backdrop-filter:blur(16px)saturate(160%)}@media (prefers-reduced-transparency:reduce){.canvas-card,.material,.material-strong,.sheet{background:var(--paper);-webkit-backdrop-filter:none}}@media (prefers-contrast:more){.canvas-card,.card,.chip,.material,.material-strong,.sheet{border:1px solid var(--ink)!important}}.pressable{transition:transform .11s ease-out,box-shadow .11s ease-out,background .15s,border-color .15s}.pressable:active{transform:translateY(2px)}.pressable:disabled{opacity:.45;cursor:not-allowed}.pressable:disabled:active{transform:none}@media (prefers-reduced-motion:reduce){.pressable:active{filter:brightness(.96);transform:none}html{scroll-behavior:auto}}.btn{cursor:pointer;letter-spacing:-.01em;background:0 0;border:0;border-radius:12px;justify-content:center;align-items:center;gap:.45rem;min-height:2.6rem;padding:.4rem 1.05rem;font-weight:600;display:inline-flex}.btn,.btn:hover{text-decoration:none}.btn-primary{background:var(--accent);color:var(--accent-ink);box-shadow:0 3px 0 var(--accent-deep),0 8px 18px var(--accent)}@supports (color:color-mix(in lab,red,red)){.btn-primary{box-shadow:0 3px 0 var(--accent-deep),0 8px 18px color-mix(in srgb,var(--accent) 30%,transparent)}}.btn-primary:hover{background:var(--accent)}@supports (color:color-mix(in lab,red,red)){.btn-primary:hover{background:color-mix(in srgb,var(--accent) 90%,white)}}.btn-primary:active{box-shadow:0 1px 0 var(--accent-deep),0 3px 8px var(--accent)}@supports (color:color-mix(in lab,red,red)){.btn-primary:active{box-shadow:0 1px 0 var(--accent-deep),0 3px 8px color-mix(in srgb,var(--accent) 25%,transparent)}}.btn-quiet{background:var(--paper);color:var(--ink);border:1px solid var(--line-strong);box-shadow:0 2px 0 var(--line-strong)}.btn-quiet:hover{border-color:var(--accent)}@supports (color:color-mix(in lab,red,red)){.btn-quiet:hover{border-color:color-mix(in srgb,var(--accent) 45%,transparent)}}.btn-quiet:active{box-shadow:0 0 0 var(--line-strong)}.btn-plain{color:var(--ink);background:0 0;font-weight:500}.btn-plain:hover{background:var(--fill)}.btn-small{border-radius:10px;min-height:2.15rem;padding:.2rem .8rem;font-size:.9rem}.site-header{z-index:20;border:1px solid var(--line);width:min(1160px,100% - 1.4rem);min-height:3.6rem;box-shadow:var(--shadow-sm);border-radius:18px;gap:.8rem;margin:.7rem auto 0;padding:.45rem .55rem .45rem .9rem;position:sticky;top:.7rem}.site-header,.wordmark{align-items:center;display:flex}.wordmark{color:var(--ink);font-family:var(--font-display);letter-spacing:-.035em;gap:.55rem;font-size:1.08rem;font-weight:750}.wordmark,.wordmark:hover{text-decoration:none}.wordmark span{color:var(--muted);font-weight:500}.logo-mark{background:var(--accent);width:2rem;height:2rem;color:var(--accent-ink);font:800 1rem/1 var(--font-display);box-shadow:0 3px 0 var(--accent-deep);border-radius:9px;place-items:center;display:grid;transform:translateY(-1px)}.nav-links{scrollbar-width:none;flex:1;justify-content:center;gap:.2rem;display:flex;overflow-x:auto}.nav-links a,.nav-links button.nav-link{color:var(--muted);cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:10px;align-items:center;gap:.4rem;padding:.45rem .8rem;font-size:.95rem;font-weight:550;text-decoration:none;display:inline-flex}.nav-links svg{opacity:.8;width:1rem;height:1rem}.nav-links a:hover,.nav-links button.nav-link:hover{color:var(--ink);background:var(--fill);text-decoration:none}.nav-links a[aria-current=page]{color:var(--accent);background:var(--accent-soft)}.header-actions{align-items:center;gap:.4rem;display:flex}.account{position:relative}.account-menu{border:1px solid var(--line);min-width:11rem;box-shadow:var(--shadow);border-radius:14px;padding:.4rem;position:absolute;top:calc(100% + .5rem);right:0}.stats{grid-template-columns:1.4fr repeat(4,1fr);gap:.7rem;width:min(1120px,100% - 2rem);margin:1.2rem auto 0;display:grid}.stat{background:var(--paper);border:1px solid var(--line);min-height:4.4rem;box-shadow:var(--shadow-sm);border-radius:16px;align-items:center;gap:.75rem;padding:.75rem .9rem;display:flex;position:relative;overflow:hidden}.stat:before{content:"";background:var(--accent);border-radius:0 3px 3px 0;width:3px;position:absolute;top:.8rem;bottom:.8rem;left:0}.stats .stat:nth-child(2):before{background:var(--coral)}.stats .stat:nth-child(3):before{background:var(--mint)}.stats .stat:nth-child(4):before{background:var(--sun)}.stats .stat:nth-child(5):before{background:var(--accent)}.stat b{font-family:var(--font-display);letter-spacing:-.02em;font-size:1.15rem;display:block}.stat span{color:var(--muted);font-size:.86rem}.stat b+span{display:block}.avatar{background:linear-gradient(135deg,var(--accent-soft),var(--coral-soft));border-radius:12px;place-items:center;width:2.7rem;height:2.7rem;display:grid}.avatar i{background:var(--accent);border-radius:50%;width:.75rem;height:.75rem;display:block}.page{width:min(1120px,100% - 2rem);margin:0 auto;padding:1.6rem 0 3.5rem}.page-narrow{width:min(760px,100% - 2rem)}.page-head{border-bottom:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:1rem;margin-bottom:1.2rem;padding:.6rem 0 1.4rem;display:flex}.page-head h1{margin-bottom:.35rem}.page-head p{color:var(--muted);max-width:44rem;margin:0}.page-head .lede{margin:0;font-size:1.05rem}.hero{padding:4.5rem 0 2rem}.grid-2{grid-template-columns:1fr 1fr}.grid-2,.grid-3{gap:1rem;display:grid}.grid-3{grid-template-columns:repeat(3,1fr)}.card{background:var(--paper);border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-sm);color:inherit;padding:1.3rem 1.35rem 1.4rem}a.card,button.card{transition:transform .16s,box-shadow .16s,border-color .16s}a.card:hover,button.card:hover{box-shadow:var(--shadow);border-color:var(--accent);transform:translateY(-2px)}@supports (color:color-mix(in lab,red,red)){a.card:hover,button.card:hover{border-color:color-mix(in srgb,var(--accent) 35%,transparent)}}a.card:hover,button.card:hover{text-decoration:none}.card h2{margin-bottom:.45rem}.card p{color:var(--muted);margin:.35rem 0 0}.section{margin-top:1.2rem}.privacy{background:var(--accent-soft);border-radius:24px;margin-top:1.4rem;padding:1.6rem}.site-footer{border-top:1px solid var(--line);width:min(1120px,100% - 2rem);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;margin:2rem auto 0;padding:1.6rem 0 2.2rem;font-size:.9rem;display:flex}.site-footer .wordmark{font-size:.98rem}.site-footer .logo-mark{width:1.6rem;height:1.6rem;box-shadow:0 2px 0 var(--accent-deep);border-radius:7px;font-size:.82rem}.footer-links{flex-wrap:wrap;gap:1.1rem;display:flex}.footer-links a{color:var(--muted)}.footer-links a:hover{color:var(--ink)}.sheet-root{z-index:40;position:fixed;inset:0}.scrim{background:var(--scrim);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);border:0;position:absolute;inset:0}.scrim-clear{-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0}.sheet{width:min(880px,100%);max-height:min(88vh,820px);box-shadow:var(--shadow);will-change:transform;border:1px solid var(--line);border-bottom:0;border-radius:26px 26px 0 0;flex-direction:column;margin-inline:auto;display:flex;position:absolute;bottom:0;left:0;right:0;overflow:hidden}.sheet-center-layer{background:var(--scrim);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);place-items:center;padding:1rem;display:grid;position:absolute;inset:0}.sheet-center{border-bottom:1px solid var(--line);border-radius:24px;width:min(460px,100%);max-height:min(86vh,760px);position:relative;bottom:auto}.sheet-grab{cursor:grab;touch-action:none;padding:.7rem 1.3rem .4rem}.grabber{background:var(--faint);border-radius:999px;width:2.6rem;height:.3rem;margin:0 auto .7rem;display:block}.sheet-body{overscroll-behavior:contain;padding:.4rem 1.3rem 1.5rem;overflow:auto}.grade-grid{grid-template-columns:repeat(4,1fr);gap:.55rem;display:grid}.chip{text-align:left;border:1px solid var(--line);background:var(--paper);cursor:pointer;border-radius:14px;align-items:center;gap:.7rem;width:100%;padding:.6rem .7rem;font-weight:550;display:flex}.chip:hover{border-color:var(--accent)}@supports (color:color-mix(in lab,red,red)){.chip:hover{border-color:color-mix(in srgb,var(--accent) 40%,transparent)}}.chip[aria-pressed=true]{border-color:var(--accent);background:var(--accent-soft);box-shadow:inset 0 0 0 1px var(--accent)}.badge{background:var(--accent-soft);min-width:2.35rem;height:2.35rem;color:var(--accent);letter-spacing:-.02em;box-shadow:inset 0 -2px 0 var(--accent);border-radius:10px;flex:none;place-items:center;padding:0 .35rem;font-size:.85rem;font-weight:750;display:grid}@supports (color:color-mix(in lab,red,red)){.badge{box-shadow:inset 0 -2px 0 color-mix(in srgb,var(--accent) 22%,transparent)}}.chip[aria-pressed=true] .badge{background:var(--accent);color:var(--accent-ink)}.section-label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:1.2rem 0 .55rem;font-size:.78rem;font-weight:700}.theme-grid{grid-template-columns:repeat(3,1fr);gap:.7rem;display:grid}.theme-card{border:1px solid var(--line);text-align:left;cursor:pointer;background:var(--paper);border-radius:16px;padding:0;overflow:hidden}.theme-card[aria-pressed=true]{border-color:var(--accent);box-shadow:inset 0 0 0 1.5px var(--accent)}.theme-swatch{letter-spacing:-.03em;height:4.6rem;padding:.7rem;font-weight:700}.theme-card figcaption,.theme-card span{color:var(--ink);padding:.55rem .7rem .7rem;display:block}.exercise-bar{flex-wrap:wrap;align-items:center;gap:.6rem;margin-bottom:.9rem;display:flex}.exercise-bar h1{letter-spacing:-.025em;flex:1;min-width:8rem;font-size:1.35rem}.exercise-bar h1 small{color:var(--muted);font-family:var(--font);letter-spacing:0;margin-top:.15rem;font-size:.82rem;font-weight:500;display:block}.metric{color:var(--muted);background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:.3rem .7rem;font-size:.92rem}.metric b{color:var(--ink);font-weight:700}.canvas-card{min-height:280px;box-shadow:var(--shadow);border:1px solid var(--line);border-radius:24px;padding:clamp(1.3rem,3vw,2.5rem);position:relative}[data-theme=classic]{--bg:#f5f3fb;--ink:#17142b;--muted:#615c78;--faint:#b2adc6;--accent:#5b3df5;--accent-ink:#fff;--line:#17142b17;--fill:#5b3df514;--material:#ffffffe0;--material-strong:#fffffff5;--paper:#fff;--passage:#17142b;--pending:#c3bfd4;--caret:#5b3df5;--bad:#e5383b;--good:#0f9f6e;--stage:#faf9ff;--key:#5b3df512;--shadow:0 2px 4px #17142b0a,0 18px 44px #2d1e781a;--edge:#ffffffb3;--scrim:#120e286b;color-scheme:light}[data-theme=ink]{--bg:#ebe6dc;--ink:#221e18;--muted:#6f675c;--faint:#b7ad9e;--accent:#8a4b08;--accent-ink:#fff8ef;--line:#221e181a;--fill:#221e1814;--material:#f3efe6e6;--material-strong:#f7f3eaf5;--paper:#f3efe6;--passage:#221e18;--pending:#b7ad9e;--caret:#8a4b08;--bad:#9d3418;--good:#2f6b3a;--stage:#efe8da;--key:#0000000d;--shadow:0 18px 50px #3c280a1a;--edge:#ffffffa6;--scrim:#281e1066;color-scheme:light}[data-theme=dusk]{--bg:#10161e;--ink:#f4f6fb;--muted:#9aa6b8;--faint:#667084;--accent:#9ec1ff;--accent-ink:#061225;--line:#ffffff1f;--fill:#ffffff14;--material:#161c26e6;--material-strong:#1c2430f5;--paper:#1c2430;--passage:#f4f6fb;--pending:#667084;--caret:#9ec1ff;--bad:#ff9b94;--good:#7ddea0;--stage:#151b24;--key:#ffffff14;--shadow:0 18px 50px #00000073;--edge:#ffffff1f;--scrim:#0000008c;color-scheme:dark}[data-theme=grove]{--bg:#e7f0e6;--ink:#1c2b22;--muted:#5d7264;--faint:#a3b5a8;--accent:#1f7a45;--accent-ink:#f3fff6;--line:#1c2b221a;--fill:#1f7a451a;--material:#eef4ece6;--material-strong:#f4f8f2f5;--paper:#eef4ec;--passage:#1c2b22;--pending:#a3b5a8;--caret:#1f7a45;--bad:#9d3418;--good:#1f7a45;--stage:#e5eee4;--key:#0000000d;--shadow:0 18px 50px #14321e14;--edge:#ffffffb3;--scrim:#10201661;color-scheme:light}[data-theme=studio]{--bg:#161210;--ink:#f7f1ea;--muted:#c4b4a6;--faint:#8d7b70;--accent:#f0b429;--accent-ink:#2a1c08;--line:#ffffff1f;--fill:#ffffff14;--material:#241c18eb;--material-strong:#2a211cf5;--paper:#2a211c;--passage:#f7f1ea;--pending:#8d7b70;--caret:#f0b429;--bad:#ff9b94;--good:#c6e2a4;--stage:#221b17;--key:#ffffff14;--shadow:0 18px 50px #00000080;--edge:#ffffff1a;--scrim:#0000008c;color-scheme:dark}[data-theme=night]{--bg:#000;--ink:#f5f5f7;--muted:#a1a1a6;--faint:#6e6e73;--accent:#fff;--accent-ink:#0e0e10;--line:#ffffff24;--fill:#ffffff1a;--material:#121214eb;--material-strong:#161618f7;--paper:#0e0e10;--passage:#f5f5f7;--pending:#5c5c62;--caret:#fff;--bad:#ff8d85;--good:#7ddea0;--stage:#070709;--key:#ffffff14;--shadow:0 18px 50px #0000008c;--edge:#ffffff24;--scrim:#0000009e;color-scheme:dark}.canvas-card{background:var(--paper);color:var(--passage)}.passage-window{height:400px;position:relative;overflow:hidden}.passage{letter-spacing:.03em;min-height:6rem;margin:0;font-size:clamp(1.35rem,2.5vw,1.9rem);font-weight:520;line-height:1.7;transition:transform .32s cubic-bezier(.22,1,.36,1);position:relative}.ch-correct{color:var(--passage)}.ch-incorrect{color:var(--bad)}.ch-pending{color:var(--pending)}.ch-current{color:var(--passage)}.caret{background:var(--caret);pointer-events:none;border-radius:2px;width:2px;height:1.25em;transition:transform 40ms linear;position:absolute}@media (prefers-reduced-motion:reduce){.caret,.passage{transition:none}}.start-hint{background:var(--accent);color:var(--accent-ink);letter-spacing:-.01em;border-radius:999px;margin-bottom:.8rem;padding:.25rem .6rem;font-size:.82rem;display:inline-block}.capture{opacity:0;border:0;width:1px;height:1px;padding:0;position:absolute}.keyboard{margin-top:1.6rem;display:grid}.keyboard,.keyboard-row{justify-content:center;gap:.35rem}.keyboard-row{display:flex}.key{min-width:1.8rem;height:2.15rem;color:var(--passage);letter-spacing:0;border-radius:8px;place-items:center;padding:0 .45rem;font-size:.82rem;display:grid}.key.on{color:#fff}.key.space{min-width:11rem}.lesson-list{gap:.55rem;display:grid}.lesson-row{text-align:left;border:1px solid var(--line);background:var(--paper);cursor:pointer;width:100%;color:inherit;border-radius:18px;justify-content:space-between;align-items:center;gap:1rem;padding:.95rem 1rem;text-decoration:none;display:flex}.lesson-row small{color:var(--muted);margin-top:.15rem;display:block}.split{grid-template-columns:280px 1fr;align-items:start;gap:1rem;display:grid}.stack{gap:.7rem;display:grid}.group-title{margin:.2rem 0;font-size:.95rem;font-weight:600}.history-row{border-radius:16px;grid-template-columns:7rem 5rem 7rem 1fr;align-items:center;gap:.6rem;padding:.85rem 1rem;display:grid}@supports (color:color-mix(in lab,red,red)){.history-row{background:color-mix(in srgb,var(--paper) 70%,transparent)}}.history-row{border:1px solid var(--line)}.chart{width:100%;height:auto;display:block}.faq details{border-top:1px solid var(--line);padding:.85rem 0}.faq summary{cursor:pointer;letter-spacing:-.015em;font-weight:600}.faq p{color:var(--muted);margin:.45rem 0 0}.progress-layout{grid-template-columns:220px 1fr;gap:1rem;display:grid}.side-list{align-content:start;gap:.25rem;display:grid}.side-list button{text-align:left;justify-content:flex-start}.achieve-grid{grid-template-columns:1fr 1fr;gap:.7rem;display:grid}.goal-picks{flex-wrap:wrap;gap:.4rem;margin-top:.8rem;display:flex}.game-grid{grid-template-columns:repeat(3,1fr);gap:.8rem;display:grid}.stage{background:var(--stage);border-top:1px solid var(--edge);height:440px;box-shadow:var(--shadow);border-radius:28px;position:relative;overflow:hidden;container-type:size}.stage-word{background:var(--paper);border-radius:999px;padding:.35rem .7rem;position:absolute;top:0;left:0}@supports (color:color-mix(in lab,red,red)){.stage-word{background:color-mix(in srgb,var(--paper) 86%,transparent)}}.stage-word{color:var(--passage);letter-spacing:.02em;will-change:transform,opacity;border:1px solid #0000}.stage-word.active{border-color:var(--caret)}.hud{justify-content:space-between;align-items:center;gap:.8rem;margin-bottom:.7rem;display:flex}.buffer{background:var(--paper);border:1px solid var(--line);border-radius:999px;min-width:8rem;min-height:2.2rem;padding:.3rem .8rem}.buffer.wrong{color:var(--bad)}.lives{gap:.3rem;display:flex}.lives i{background:var(--faint);border-radius:50%;width:.55rem;height:.55rem;display:block}.lives i.on{background:var(--accent)}.field{gap:.35rem;margin-bottom:.75rem;display:grid}.field span{color:var(--muted);font-size:.92rem}.field input{border:1px solid var(--line);background:var(--paper);border-radius:14px;width:100%;min-height:2.8rem;padding:.4rem .8rem}.field-error{color:var(--bad);margin:0;font-size:.88rem}.check{color:var(--muted);align-items:flex-start;gap:.6rem;font-size:.92rem;display:flex}.auth-grid{grid-template-columns:1fr 1fr;gap:.5rem;display:grid}.or{color:var(--muted);grid-template-columns:1fr auto 1fr;align-items:center;gap:.6rem;margin:.8rem 0;display:grid}.or:after,.or:before{content:"";background:var(--line);height:1px}.certificate{background:var(--paper);width:min(720px,100% - 2rem);box-shadow:var(--shadow);border-radius:28px;margin:2rem auto;padding:clamp(1.5rem,4vw,3rem)}.certificate h1{letter-spacing:-.04em;font-size:clamp(2.4rem,6vw,4rem)}@media (max-width:860px){.site-header{flex-wrap:wrap}.nav-links{flex:1 0 100%;order:3;padding-bottom:.2rem}.auth-grid,.game-grid,.grade-grid,.grid-2,.grid-3,.history-row,.progress-layout,.split,.stats,.theme-grid{grid-template-columns:1fr 1fr}}@media (max-width:640px){.auth-grid,.game-grid,.grade-grid,.grid-2,.grid-3,.progress-layout,.split,.stats,.theme-grid{grid-template-columns:1fr}.site-header{flex-wrap:wrap}.hero{padding-top:2.4rem}}@media print{.no-print{display:none!important}body{color:#000;background:#fff}.certificate{box-shadow:none;width:auto;margin:0}}.home-hero{grid-template-columns:1.05fr 1fr;align-items:center;gap:clamp(1.5rem,4vw,3.5rem);padding-top:clamp(2.5rem,7vw,5.5rem);display:grid}.home-pill{background:var(--accent);border-radius:999px;margin:0 0 1rem;padding:.3rem .8rem;display:inline-block}@supports (color:color-mix(in lab,red,red)){.home-pill{background:color-mix(in srgb,var(--accent) 12%,transparent)}}.home-pill{color:var(--accent);font-size:.88rem;font-weight:600}.home-title{letter-spacing:-.045em;margin:0 0 1rem;font-size:clamp(2.6rem,6.4vw,4.6rem);line-height:1.02}.home-title span{color:var(--accent);display:block}.home-actions{flex-wrap:wrap;gap:.6rem;margin-top:1.6rem;display:flex}.home-btn-lg{min-height:3.1rem;padding-inline:1.4rem;font-size:1.02rem}.home-facts{color:var(--muted);flex-wrap:wrap;gap:.4rem 1.2rem;margin:1.4rem 0 0;padding:0;font-size:.92rem;list-style:none;display:flex}.home-facts li:before{content:"✓ ";color:var(--good);font-weight:700}.home-demo{background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:26px;padding:1.1rem 1.3rem 1.3rem;transform:rotate(-1deg)}.home-demo-bar{align-items:center;gap:.35rem;margin-bottom:1rem;display:flex}.home-dot{background:var(--fill);border-radius:50%;width:.6rem;height:.6rem}.home-demo-title{color:var(--muted);margin-left:auto;font-size:.82rem}.home-demo-text{min-height:4.7em;margin:0;font:500 clamp(1.15rem,2.2vw,1.45rem)/1.6 ui-monospace,SF Mono,Menlo,Consolas,monospace}.home-pending{color:var(--faint)}.home-caret{vertical-align:-.2em;background:var(--accent);width:2px;height:1.15em;margin:0 -1px;animation:home-blink 1s step-end infinite;display:inline-block}@keyframes home-blink{50%{opacity:0}}.home-demo-stats{color:var(--muted);gap:1.2rem;margin:.9rem 0 1.1rem;font-size:.88rem;display:flex}.home-demo-stats b{color:var(--ink);font-variant-numeric:tabular-nums}.home-kb{gap:.3rem;display:grid}.home-kb-row{gap:.3rem;display:flex}.home-kb i{aspect-ratio:1;background:var(--fill);max-width:2.4rem;color:var(--muted);border-radius:8px;flex:1;place-items:center;font:500 .78rem ui-monospace,monospace;transition:background .12s,color .12s,transform .12s;display:grid}.home-kb i.bump{box-shadow:inset 0 -3px 0 var(--accent)}@supports (color:color-mix(in lab,red,red)){.home-kb i.bump{box-shadow:inset 0 -3px 0 color-mix(in srgb,var(--accent) 40%,transparent)}}.home-kb i.hit{background:var(--accent);color:var(--accent-ink);transform:translateY(1px)}.home-kb i.space{aspect-ratio:auto;max-width:12rem;height:1.9rem;margin-inline:auto}.home-section{padding-top:clamp(2.5rem,6vw,4.5rem)}.home-h2{letter-spacing:-.035em;margin:.2rem 0 1.4rem;font-size:clamp(1.7rem,3.4vw,2.4rem);line-height:1.1}.home-muted{color:var(--muted);margin:0}.home-paths{grid-template-columns:repeat(4,1fr);gap:.9rem;display:grid}.home-path{border-radius:var(--radius);background:var(--paper);border:1px solid var(--line);color:var(--ink);flex-direction:column;padding:1.3rem;text-decoration:none;transition:transform .18s,box-shadow .18s;display:flex}.home-path:hover{box-shadow:var(--shadow);text-decoration:none;transform:translateY(-3px)}.home-path-tag{text-transform:uppercase;letter-spacing:.08em;color:var(--accent);font-size:.78rem;font-weight:700}.home-path h3{letter-spacing:-.02em;margin:.4rem 0 .3rem;font-size:1.3rem}.home-path p{color:var(--muted);flex:1;margin:0 0 1rem}.home-path-go{color:var(--accent);font-size:.92rem;font-weight:600}.home-steps{grid-template-columns:repeat(3,1fr);gap:.9rem;margin:0;padding:0;list-style:none;display:grid}.home-steps li{border-top:2px solid var(--ink);padding:1.3rem 0 0}.home-step-n{color:var(--accent);font:600 .9rem ui-monospace,monospace}.home-steps h3{letter-spacing:-.02em;margin:.5rem 0 .3rem;font-size:1.2rem}.home-steps p{color:var(--muted);margin:0}.home-split{background:var(--paper);border:1px solid var(--line);border-radius:28px;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);padding:clamp(1.5rem,4vw,2.6rem);display:grid}.home-cta{text-align:center;background:var(--accent);color:var(--accent-ink);border-radius:32px;padding:clamp(2.5rem,6vw,4.5rem) 1.5rem}.home-cta h2{letter-spacing:-.04em;max-width:22ch;margin:0 auto .6rem;font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.08}.home-cta p{opacity:.8;margin:0 0 1.6rem}.home-cta-btn{background:var(--accent-ink);color:var(--accent);font-weight:600}@media (max-width:960px){.home-hero{grid-template-columns:1fr}.home-demo{transform:none}.home-paths{grid-template-columns:1fr 1fr}}@media (max-width:640px){.home-paths,.home-split,.home-steps{grid-template-columns:1fr}}@media (prefers-reduced-motion:reduce){.home-caret{animation:none}.home-path{transition:none}}.passage:lang(hi){letter-spacing:0;line-height:1.9}.start-hint{box-shadow:0 2px 0 var(--accent-deep,#0003);border-radius:8px;font-weight:600}.key{background:var(--key);min-width:2rem;height:2.3rem;font-family:var(--mono);border-radius:9px;font-weight:500;transition:background .12s,transform 80ms;box-shadow:inset 0 -2px #00000014}.key.on{background:var(--caret);color:var(--paper);box-shadow:inset 0 -2px #0003}.key.down{transform:translateY(1px)}.caret{width:2.5px}.lesson-list{counter-reset:lesson;gap:.6rem}.lesson-row{box-shadow:var(--shadow-sm);border-radius:16px;padding:.9rem 1rem;font-weight:600;transition:transform .14s,border-color .14s,box-shadow .14s}.lesson-list .lesson-row{counter-increment:lesson}.lesson-list .lesson-row>span:first-child{padding-left:3.1rem;position:relative}.lesson-list .lesson-row>span:first-child:before{content:counter(lesson,decimal-leading-zero);background:var(--accent-soft);width:2.3rem;height:2.3rem;color:var(--accent);font:700 .82rem var(--mono);box-shadow:inset 0 -2px 0 var(--accent);border-radius:10px;place-items:center;display:grid;position:absolute;top:50%;left:0;transform:translateY(-50%)}@supports (color:color-mix(in lab,red,red)){.lesson-list .lesson-row>span:first-child:before{box-shadow:inset 0 -2px 0 color-mix(in srgb,var(--accent) 22%,transparent)}}.lesson-row small{font-weight:450}a.lesson-row:hover,button.lesson-row:hover{border-color:var(--accent);text-decoration:none}@supports (color:color-mix(in lab,red,red)){a.lesson-row:hover,button.lesson-row:hover{border-color:color-mix(in srgb,var(--accent) 40%,transparent)}}a.lesson-row:hover,button.lesson-row:hover{transform:translate(3px)}a.lesson-row>span:last-child{background:var(--fill);color:var(--accent);white-space:nowrap;border-radius:9px;padding:.3rem .75rem;font-size:.88rem;font-weight:650}.group-title{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;margin:0 0 .7rem;font-size:.78rem;font-weight:700}.history-row{background:var(--paper);border-radius:14px}.faq details{padding:1rem 0}.faq summary{font-family:var(--font-display);font-weight:650}.side-list{gap:.35rem}.side-list .btn{justify-content:flex-start}.achieve-grid .card h2{font-size:1.1rem}.game-grid{gap:1rem}.game-grid>.card{padding-top:4.4rem;position:relative;overflow:hidden}.game-grid>.card:before{content:"";background:linear-gradient(120deg,var(--accent-soft),transparent 80%);height:3.2rem;position:absolute;inset:0 0 auto}.game-grid>.card:after{content:"▶";background:var(--accent);width:2.2rem;height:2.2rem;color:var(--accent-ink);box-shadow:0 3px 0 var(--accent-deep);border-radius:10px;place-items:center;font-size:.8rem;display:grid;position:absolute;top:1.05rem;left:1.35rem}.game-grid>.card:nth-child(3n+2):before{background:linear-gradient(120deg,var(--coral-soft),transparent 80%)}.game-grid>.card:nth-child(3n+2):after{background:var(--coral);box-shadow:0 3px 0 var(--coral)}@supports (color:color-mix(in lab,red,red)){.game-grid>.card:nth-child(3n+2):after{box-shadow:0 3px 0 color-mix(in srgb,var(--coral) 70%,black)}}.game-grid>.card:nth-child(3n+2):after{color:#fff}.game-grid>.card:nth-child(3n+3):before{background:linear-gradient(120deg,var(--mint-soft),transparent 80%)}.game-grid>.card:nth-child(3n+3):after{background:var(--mint);box-shadow:0 3px 0 var(--mint)}@supports (color:color-mix(in lab,red,red)){.game-grid>.card:nth-child(3n+3):after{box-shadow:0 3px 0 color-mix(in srgb,var(--mint) 70%,black)}}.game-grid>.card:nth-child(3n+3):after{color:#fff}.game-grid>.card p.nums{background:var(--fill);color:var(--ink);border-radius:8px;padding:.2rem .6rem;font-size:.88rem;font-weight:650;display:inline-block}.stage{border:1px solid var(--line);border-radius:24px}.stage-word{box-shadow:var(--shadow-sm);border-radius:10px;font-weight:600}.buffer{font-family:var(--mono);border-radius:10px}.field input{border:1px solid var(--line-strong);border-radius:12px;transition:border-color .14s,box-shadow .14s}.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);outline:none}.certificate{border:1px solid var(--line);border-radius:24px}.home-pill{border-radius:8px}.home-demo{border-radius:22px}.home-path{box-shadow:var(--shadow-sm);border-radius:18px}.home-paths .home-path:nth-child(2) .home-path-tag{color:var(--coral)}.home-paths .home-path:nth-child(3) .home-path-tag{color:var(--mint)}.home-paths .home-path:nth-child(4) .home-path-tag{color:var(--sun)}.home-cta{background:linear-gradient(135deg,var(--accent),var(--accent-deep));box-shadow:var(--shadow);border-radius:28px}.home-cta-btn{box-shadow:0 3px #00000040}.home-split{box-shadow:var(--shadow-sm);border-radius:24px}@media (max-width:860px){.site-header{flex-wrap:wrap;top:.4rem}.nav-links{justify-content:flex-start}}[data-theme]{--accent-soft:var(--accent)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--accent-soft:color-mix(in srgb,var(--accent) 13%,var(--paper))}}[data-theme]{--accent-deep:var(--accent)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--accent-deep:color-mix(in srgb,var(--accent) 72%,black)}}[data-theme]{--line-strong:var(--ink)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--line-strong:color-mix(in srgb,var(--ink) 16%,transparent)}}[data-theme]{--bg-dot:var(--accent)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--bg-dot:color-mix(in srgb,var(--accent) 7%,transparent)}}[data-theme]{--shadow-sm:0 1px 2px #00000012,0 2px 6px #0000000a;--coral-soft:var(--coral)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--coral-soft:color-mix(in srgb,var(--coral) 14%,var(--paper))}}[data-theme]{--mint-soft:var(--mint)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--mint-soft:color-mix(in srgb,var(--mint) 14%,var(--paper))}}[data-theme]{--sun-soft:var(--sun)}@supports (color:color-mix(in lab,red,red)){[data-theme]{--sun-soft:color-mix(in srgb,var(--sun) 16%,var(--paper))}}.wordmark .logo-mark{color:var(--accent-ink)}.lang-menu{position:relative}.lang-trigger svg{width:1rem;height:1rem}.lang-trigger span{letter-spacing:.02em;font-weight:700}.lang-popover{z-index:30;border:1px solid var(--line);width:15rem;box-shadow:var(--shadow);border-radius:16px;padding:.45rem;position:absolute;top:calc(100% + .5rem);right:0}.lang-popover-title{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:.3rem .5rem .4rem;font-size:.74rem;font-weight:700}.lang-option{text-align:left;cursor:pointer;background:0 0;border:0;border-radius:11px;align-items:center;gap:.65rem;width:100%;padding:.45rem .5rem;display:flex}.lang-option:hover{background:var(--fill)}.lang-option[aria-selected=true]{background:var(--accent-soft)}.lang-option[aria-selected=true] .badge{background:var(--accent);color:var(--accent-ink)}.lang-option .badge{border-radius:9px;min-width:2rem;height:2rem;font-size:.75rem}.lang-option b{font-weight:650;display:block}.lang-option small{color:var(--muted);font-size:.8rem}.lang-check{color:var(--accent);margin-left:auto;font-weight:800}.lang-tabs{flex-wrap:wrap;align-items:center;gap:.4rem;margin:-.4rem 0 1.3rem;display:flex}.lang-tabs-label{color:var(--muted);letter-spacing:.08em;text-transform:uppercase;align-items:center;gap:.35rem;margin-right:.3rem;font-size:.78rem;font-weight:700;display:inline-flex}.lang-tabs-label svg{width:.95rem;height:.95rem}.lang-tab{border:1px solid var(--line-strong);background:var(--paper);min-height:2.3rem;color:var(--ink);cursor:pointer;box-shadow:0 2px 0 var(--line-strong);border-radius:11px;padding:.3rem .95rem;font-weight:600}.lang-tab:hover{border-color:var(--accent)}@supports (color:color-mix(in lab,red,red)){.lang-tab:hover{border-color:color-mix(in srgb,var(--accent) 45%,transparent)}}.lang-tab[aria-checked=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);box-shadow:0 2px 0 var(--accent-deep)}.lang-tab:disabled{opacity:.5;cursor:default}.passage[lang]{letter-spacing:0;line-height:1.9}.passage[dir=rtl]{font-size:clamp(1.5rem,2.7vw,2.05rem);line-height:2.1}.lang-popover{grid-template-columns:1fr 1fr;gap:.15rem;width:min(25rem,100vw - 2rem);display:grid}.lang-popover-title{grid-column:1/-1}.brand-logo{align-items:center;line-height:0;display:inline-flex}.brand-logo img{width:auto;height:2.5rem;display:block}.brand-logo-dark,:root:is([data-theme=dusk],[data-theme=studio],[data-theme=night]) .brand-logo:not(.brand-logo-fixed) .brand-logo-light{display:none!important}:root:is([data-theme=dusk],[data-theme=studio],[data-theme=night]) .brand-logo:not(.brand-logo-fixed) .brand-logo-dark{display:block!important}@media (prefers-color-scheme:dark){:root:not([data-theme]) .brand-logo:not(.brand-logo-fixed) .brand-logo-light{display:none!important}:root:not([data-theme]) .brand-logo:not(.brand-logo-fixed) .brand-logo-dark{display:block!important}}.site-header .wordmark{margin-left:-.2rem}.site-footer .brand-logo img{height:2.1rem}.certificate-logo{margin-bottom:1.2rem}.certificate-logo img{height:3rem}@media (max-width:640px){.site-header .brand-logo img{height:2.1rem}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}