:root{--paper:#faf7f1;--card:#fffdf9;--ink:#2c2a26;--ink-soft:#716c64;--line:#eae4d8;--accent:#56755f;--on-accent:#fffdf9;--accent-soft:#e4ece5;--mark:#b0614d;--mark-soft:#f6e6df;--oat:#ddd0b6;--serif:ui-serif, "New York", "Iowan Old Style", Georgia, serif;--sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--paper:#1c1b18;--card:#282620;--ink:#f2eee6;--ink-soft:#a8a296;--line:#3a372f;--accent:#93b3a0;--on-accent:#1c1b18;--accent-soft:#2e3a32;--mark:#d9917c;--mark-soft:#3d2d27;--oat:#584e3b}}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--paper);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;margin:0;font-size:17px;line-height:1.55}a{color:inherit}button{font:inherit;color:inherit;cursor:pointer}h1,h2,h3{font-family:var(--serif);letter-spacing:-.01em;margin:0;font-weight:500;line-height:1.15}.wrap{width:min(1040px,100%);margin:0 auto;padding:0 24px}.nav{justify-content:space-between;align-items:center;padding:26px 0;display:flex}.brand{font-family:var(--serif);font-size:19px;font-weight:600;text-decoration:none}.nav a:not(.brand){color:var(--ink-soft);font-size:15px;text-decoration:none}.nav a:not(.brand):hover{color:var(--ink)}.hero{grid-template-columns:1.05fr 1fr;align-items:center;gap:64px;padding:48px 0 96px;display:grid}.wrong{font-family:var(--serif);color:var(--ink-soft);font-size:clamp(26px,4vw,34px);display:inline-block;position:relative}.wrong svg{width:calc(100% + 8px);height:12px;position:absolute;top:54%;left:-4px;right:-4px;overflow:visible}.wrong path{fill:none;stroke:var(--mark);stroke-width:2.4px;stroke-linecap:round;stroke-dasharray:400;stroke-dashoffset:400px;animation:.7s ease-out .45s forwards draw}@keyframes draw{to{stroke-dashoffset:0}}.hero h1{margin:8px 0 22px;font-size:clamp(44px,7vw,68px)}.hero p{color:var(--ink-soft);max-width:30em;margin:0 0 30px;font-size:20px}.badge{background:var(--accent);color:var(--on-accent);border-radius:18px;padding:16px 26px;font-weight:600;display:inline-block}.stamp{font-family:var(--serif);letter-spacing:.07em;white-space:nowrap;outline-offset:2px;border:2.4px solid;border-radius:6px;outline:1px solid;padding:6px 13px;font-weight:800;display:inline-block;transform:rotate(-5deg)}.stamp.in{animation:.16s ease-in both stamp}@keyframes stamp{0%{opacity:0;transform:rotate(-5deg)scale(1.9)}to{opacity:1;transform:rotate(-5deg)scale(1)}}.stack{position:relative}.stack:before,.stack:after{content:"";background:var(--card);border:1px solid var(--line);border-radius:22px;position:absolute;inset:0}.stack:before{transform:rotate(-2.6deg)translate(-5px,8px)}.stack:after{transform:rotate(1.8deg)translate(5px,5px)}.card{z-index:1;background:var(--card);border:1px solid var(--line);border-radius:22px;position:relative;box-shadow:0 10px 28px #00000014}.play{flex-direction:column;min-height:400px;padding:26px;display:flex}.play-top{color:var(--ink-soft);justify-content:space-between;font-size:15px;display:flex}.play-top b{font-family:var(--serif);color:var(--ink);font-size:17px}.play-body{text-align:center;flex-direction:column;flex:1;justify-content:center;gap:12px;display:flex}.play-sentence{font-family:var(--serif);font-size:30px;font-weight:500;line-height:1.2}.play-sentence.struck{text-decoration:line-through;-webkit-text-decoration-color:var(--mark);text-decoration-color:var(--mark);color:var(--ink-soft);font-size:22px;text-decoration-thickness:2px}.play-right{font-family:var(--serif);font-size:28px;font-weight:500}.play-why{color:var(--ink-soft);font-size:16px}.play-actions{grid-template-columns:1fr 1fr;gap:10px;display:grid}.btn{border:1px solid var(--line);background:var(--card);border-radius:18px;min-height:56px;font-weight:600;transition:transform .12s ease-out}.btn:active{transform:scale(.98)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}.btn.mark{color:var(--mark)}.btn.wide{grid-column:1/-1}.ok{color:var(--accent)}.no{color:var(--mark)}section.band{border-top:1px solid var(--line);padding:72px 0}section.band h2{margin-bottom:14px;font-size:clamp(32px,4.5vw,44px)}.lead{color:var(--ink-soft);max-width:34em;margin:0 0 40px;font-size:19px}.mistakes{grid-template-columns:repeat(3,1fr);gap:16px;display:grid}.mistake{padding:22px}.mistake s{color:var(--ink-soft);-webkit-text-decoration-color:var(--mark);text-decoration-color:var(--mark);font-family:var(--serif);text-decoration-thickness:2px;display:block}.mistake strong{font-family:var(--serif);margin:4px 0 8px;font-size:22px;font-weight:500;display:block}.mistake span{color:var(--ink-soft);font-size:15px}.features{grid-template-columns:1fr 1fr;gap:16px;display:grid}.feature{padding:28px}.feature h3{margin-bottom:8px;font-size:26px}.feature p{color:var(--ink-soft);margin:0 0 20px}.chips{flex-wrap:wrap;gap:8px;display:flex}.chip{border:1px solid var(--line);font-family:var(--serif);background:var(--paper);border-radius:10px;padding:10px 14px;font-size:19px}.chip.bad{background:var(--mark-soft);border-color:var(--mark);text-decoration:line-through;-webkit-text-decoration-color:var(--mark);text-decoration-color:var(--mark)}.flip{perspective:900px;background:0 0;border:0;width:100%;height:170px;padding:0;display:block}.flip-inner{height:100%;transform-style:preserve-3d;transition:transform .5s cubic-bezier(.3,.9,.4,1);display:block;position:relative}.flip.on .flip-inner{transform:rotateY(180deg)}.flip-face{backface-visibility:hidden;border:1px solid var(--line);background:var(--paper);border-radius:14px;flex-direction:column;justify-content:center;align-items:center;gap:4px;padding:14px;display:flex;position:absolute;inset:0}.flip-face.back{transform:rotateY(180deg)}.flip-word{font-family:var(--serif);font-size:32px;font-weight:500}.flip-hint{color:var(--ink-soft);font-size:14px}.flip-trap{color:var(--mark);font-size:15px}.fix-mock s{font-family:var(--serif);color:var(--ink-soft);-webkit-text-decoration-color:var(--mark);text-decoration-color:var(--mark);text-decoration-thickness:2px;display:block}.fix-mock strong{font-family:var(--serif);margin-top:4px;font-size:24px;font-weight:500;display:block}.ticks{font-family:var(--serif);color:var(--accent);gap:14px;font-size:26px;display:flex}.foot{border-top:1px solid var(--line);color:var(--ink-soft);flex-wrap:wrap;justify-content:space-between;gap:14px;padding:34px 0 44px;font-size:15px;display:flex}.foot nav{flex-wrap:wrap;gap:20px;display:flex}.foot a{text-decoration:none}.foot a:hover{color:var(--ink)}.doc{max-width:720px;padding:28px 0 72px}.doc h1{margin-bottom:8px;font-size:clamp(38px,6vw,52px)}.doc .date{color:var(--ink-soft);margin:0 0 36px}.doc h2{margin:38px 0 10px;font-size:26px}.doc p,.doc li{color:var(--ink)}.doc ul{padding-left:22px}.doc li{margin:6px 0}.doc a{color:var(--accent)}.doc .note{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:16px 18px}@media (max-width:820px){.hero{grid-template-columns:1fr;gap:48px;padding:16px 0 72px}.mistakes,.features{grid-template-columns:1fr}.play{min-height:360px}section.band{padding:56px 0}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-delay:0s!important}}