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0;display:grid}.history-result{background:var(--red);border-radius:50%;width:6px;height:6px}.history-result.correct{background:var(--green)}.history-list div>div{flex-direction:column;gap:2px;display:flex}.history-list strong{font-size:10px}.history-list small{color:var(--muted);text-transform:capitalize;font-size:8px}.history-list em{font-family:var(--font-geist-mono), monospace;font-size:10px;font-style:normal;font-weight:700}.guide-view{overflow:hidden}.guide-hero{background:var(--ink);border-radius:var(--radius-lg);color:#fff;grid-template-columns:1.4fr .6fr;align-items:center;min-height:570px;padding:55px 60px;display:grid;position:relative;overflow:hidden}.guide-hero:before{content:"";background-color:#0000;background-image:linear-gradient(#ffffff0f 1px,#0000 1px),linear-gradient(90deg,#ffffff0f 1px,#0000 1px);background-position:0 0,0 0;background-repeat:repeat,repeat;background-size:30px 30px;background-attachment:scroll,scroll;background-origin:padding-box,padding-box;background-clip:border-box,border-box;position:absolute;inset:0;-webkit-mask-image:linear-gradient(90deg,#0000,#000);mask-image:linear-gradient(90deg,#0000,#000)}.guide-hero>div{position:relative}.guide-hero h1{font-size:clamp(3.6rem,6.8vw,7.8rem)}.guide-hero h1 em{color:var(--acid)}.guide-hero p{color:#ffffff8f}.guide-hero a{border:1px solid #ffffff80;border-radius:99px;gap:20px;margin-top:28px;padding:11px 14px;font-size:10px;font-weight:700;text-decoration:none;display:inline-flex}.guide-hero a:hover{background:var(--acid);border-color:var(--acid);color:var(--ink)}.guide-cube{flex-direction:column;justify-content:center;align-items:center;display:flex}.guide-cube>div{grid-template-rows:repeat(3,clamp(42px,5.6vw,82px));grid-template-columns:repeat(3,clamp(42px,5.6vw,82px));gap:5px;display:grid;transform:rotate(8deg)}.guide-cube i{background:var(--yellow);border:5px solid #0a0a09;border-radius:10px}.guide-cube i:nth-child(2),.guide-cube i:nth-child(4){background:var(--red)}.guide-cube i:nth-child(6){background:var(--blue)}.guide-cube i:nth-child(8){background:var(--acid)}.guide-cube>span{color:#ffffff54;font-family:var(--font-geist-mono), monospace;letter-spacing:.18em;margin-top:28px;font-size:11px}.lesson-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:14px;display:grid}.lesson-grid article{background:var(--panel);border:1px solid var(--ink);border-radius:var(--radius-md);flex-direction:column;min-height:310px;padding:22px;display:flex}.lesson-grid article>div{justify-content:space-between;align-items:center;display:flex}.lesson-grid article>div span{font-family:var(--font-geist-mono), monospace;font-size:10px;font-weight:700}.lesson-grid article>div em{background:var(--acid);text-transform:uppercase;border-radius:99px;padding:5px 8px;font-size:8px;font-style:normal;font-weight:700}.lesson-grid h2{letter-spacing:-.06em;margin:46px 0 13px;font-size:clamp(1.65rem,2.8vw,3rem);line-height:.96}.lesson-grid p{color:var(--muted);margin:0 0 20px;font-size:10px;line-height:1.55}.lesson-grid a{margin-top:auto;font-size:9px;font-weight:700}.optimal-note{background:var(--yellow);border:1px solid var(--ink);border-radius:var(--radius-md);grid-template-columns:.8fr 1.2fr;margin-top:14px;display:grid;overflow:hidden}.optimal-word{background:var(--blue);color:#fff;font-family:var(--font-geist-mono), monospace;letter-spacing:-.09em;justify-content:center;align-items:center;min-height:340px;font-size:clamp(3rem,7vw,8rem);font-weight:800;display:flex;transform:none}.optimal-note>div:last-child{align-self:center;padding:45px 50px}.optimal-note h2{letter-spacing:-.065em;margin:0 0 20px;font-size:clamp(2rem,4vw,4.2rem);line-height:.95}.optimal-note p{max-width:650px;margin:0;font-size:11px;line-height:1.6}.roadmap-strip{border-bottom:1px solid var(--ink);border-top:1px solid var(--ink);align-items:center;gap:28px;margin-top:30px;padding:17px 0;display:flex}.roadmap-strip>span{font-family:var(--font-geist-mono), monospace;letter-spacing:.09em;text-transform:uppercase;font-size:8px;font-weight:700}.roadmap-strip>div{flex-wrap:wrap;gap:9px;display:flex}.roadmap-strip strong{border:1px solid var(--ink);border-radius:99px;padding:7px 11px;font-size:9px}.site-footer{border-top:1px solid #1717152e;grid-template-columns:1fr 1fr 1fr;align-items:center;gap:20px;margin:0 46px;padding:23px 0 30px;font-size:9px;display:grid}.site-footer>span{font-family:var(--font-geist-mono), monospace;letter-spacing:.08em;font-weight:700}.site-footer p{color:var(--muted);text-align:center;margin:0}.site-footer a{justify-self:end;font-weight:700}.mobile-nav{display:none}button:focus-visible,a:focus-visible,input:focus-visible,.timer-surface:focus-visible{outline:3px solid var(--blue);outline-offset:3px}@media (max-width:1180px){.view-wrap{padding:38px 28px 80px}.practice-heading h1,.section-heading h1{font-size:clamp(3.4rem,7vw,6rem)}.practice-grid{grid-template-columns:minmax(0,1.45fr) minmax(300px,.75fr)}.timer-value{font-size:clamp(4.8rem,10vw,8.8rem)}.coaching-card{grid-template-columns:80px 1fr 150px}.case-library-grid,.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer{margin:0 28px}}@media (max-width:920px){:root{--rail:72px}.app-rail{width:var(--rail)}.practice-heading,.section-heading{flex-direction:column;align-items:flex-start;gap:26px}.practice-grid{grid-template-columns:1fr}.timer-card{border-radius:0;min-height:620px}.case-panel{border-left:1px solid var(--ink);border-radius:0 0 var(--radius-lg) var(--radius-lg)}.cube-stage{height:300px}.practice-footer-grid,.progress-main-grid,.progress-lower-grid{grid-template-columns:1fr}.coaching-card{grid-template-columns:85px 1fr}.coaching-card>a{border-left:0;border-top:1px solid var(--ink);grid-column:1/-1;min-height:74px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.guide-hero{grid-template-columns:1fr;padding:50px 40px}.guide-cube{margin-top:55px}.optimal-note{grid-template-columns:1fr}.optimal-word{min-height:220px}}@media (max-width:700px){:root{--rail:0px}body{background-size:24px 24px}.app-rail{display:none}.app-main{margin-left:0}.topbar{background:var(--ink);color:#fff;z-index:20;height:54px;padding:0 17px;position:sticky;top:0}.topbar>span{display:none}.mobile-brand{display:flex}.view-wrap{padding:30px 14px 96px}.practice-heading,.section-heading{margin-bottom:28px}.practice-heading h1,.section-heading h1,.guide-hero h1{letter-spacing:-.075em;font-size:clamp(3.05rem,15vw,5.2rem)}.today-goal{width:100%}.mode-strip{border-radius:var(--radius-md) var(--radius-md) 0 0;scrollbar-width:none;display:flex;overflow-x:auto}.mode-strip::-webkit-scrollbar{display:none}.mode-strip button{flex:0 0 116px;min-height:65px;padding:13px 14px}.timer-card-topline{min-height:82px;padding:16px}.timer-card-topline h2{font-size:1.6rem}.next-case-button{width:34px;height:34px;padding:0;font-size:0}.next-case-button span{margin:0;font-size:14px}.scramble-line{grid-template-columns:auto 1fr auto;gap:9px;padding:10px 15px}.scramble-line code{max-height:42px;font-size:9px;overflow:auto}.timer-surface{min-height:330px;padding:25px 12px}.timer-value{font-size:clamp(4.2rem,21vw,7.4rem)}.result-review{flex-direction:column;align-items:flex-start}.result-actions{justify-content:flex-start}.intent-row{flex-direction:column;align-items:flex-start;gap:9px;padding:12px 14px}.intent-row>div{width:100%}.intent-row button{flex:1}.case-panel{border-radius:0 0 var(--radius-md) var(--radius-md)}.cube-stage{height:235px}.practice-footer-grid{margin-top:10px}.coaching-card{flex-direction:column;display:flex}.coaching-card>.card-index{border-bottom:1px solid var(--line);border-right:0;padding:16px 18px}.coaching-card>div{padding:24px 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24px}.optimal-word{font-size:4rem}.roadmap-strip{flex-direction:column;align-items:flex-start}.site-footer{flex-direction:column;align-items:flex-start;gap:10px;margin:0 14px 68px;padding:20px 0;display:flex}.site-footer p{text-align:left}.mobile-nav{color:#fff;padding:7px 6px max(7px, env(safe-area-inset-bottom));z-index:40;background:#171715f5;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-nav button{color:#ffffff7a;background:0 0;border:0;border-radius:8px;flex-direction:column;align-items:center;gap:3px;padding:7px 2px;font-size:8px;display:flex}.mobile-nav button span{font-family:var(--font-geist-mono), monospace;font-size:7px}.mobile-nav button.active{background:var(--acid);color:var(--ink)}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}.save-indicator i{animation:none}}