:root{--lightningcss-light: ;--lightningcss-dark:initial;--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--bg:#101923;--ink:#f5f1e9;--muted:#cbd5e1ad;--muted-soft:#cbd5e17a;--line:#ffffff1a;--panel:#02061780;--panel-strong:#0f172ab8;--stone:#f5f5f4;--slate:#0f172a;--emerald:#a7f3d0;--red:#fecaca}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:var(--bg);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,sans-serif}button{font:inherit}.app-root{min-height:100vh;color:var(--ink);background:#101923;padding:16px;position:relative;overflow-x:hidden}.bg-glow{pointer-events:none;background:radial-gradient(circle at 0 0,#8faab533,#0000 34%),radial-gradient(circle at 100% 100%,#b36a611c,#0000 32%);position:fixed;top:0;bottom:0;left:0;right:0}.app-wrap{width:min(100%,72rem);margin:0 auto;position:relative}.app-header{z-index:40;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(24px);backdrop-filter:blur(24px);background:#101923e6;margin:0 -16px 16px;padding:14px 16px 16px;position:sticky;top:0}.header-main{justify-content:space-between;align-items:center;gap:16px;display:flex}.header-main p{color:#cbd5e173;letter-spacing:.24em;text-transform:uppercase;margin:0;font-size:.64rem;font-weight:750}.header-main h1{color:var(--ink);letter-spacing:-.035em;margin:4px 0 0;font-size:clamp(1.55rem,6vw,2.7rem);font-weight:720;line-height:1}.trainer-pill{border:1px solid var(--line);text-align:right;background:#ffffff0a;border-radius:18px;padding:8px 16px;display:none}.trainer-pill span{color:#cbd5e173;letter-spacing:.2em;text-transform:uppercase;font-size:.64rem;font-weight:750;display:block}.trainer-pill strong{color:var(--ink);margin-top:3px;font-size:.9rem;font-weight:750;display:block}.level-tabs{grid-template-columns:1fr 1fr;gap:8px;margin-top:14px;display:grid}.level-tabs button{border:1px solid var(--line);color:#cbd5e1b3;text-align:left;cursor:pointer;background:#ffffff0a;border-radius:18px;padding:10px 12px;transition:all .18s}.level-tabs button.active{background:var(--stone);color:#020617;border-color:#e2e8f0b8;box-shadow:0 18px 42px #00000038}.level-tabs span{font-size:.92rem;font-weight:800;display:block}.level-tabs small{opacity:.72;margin-top:3px;font-size:.74rem;display:block}.tab-nav{border-bottom:1px solid var(--line);margin:0 -16px 16px;position:relative}.tab-scroll{scrollbar-width:none;padding:0 16px 12px;overflow-x:auto}.tab-scroll::-webkit-scrollbar{display:none}.tab-scroll>div{gap:8px;min-width:max-content;padding-right:48px;display:flex}.tab-scroll button{color:#cbd5e1b8;cursor:pointer;white-space:nowrap;background:0 0;border:0;border-radius:999px;padding:9px 16px;font-weight:750;transition:all .18s}.tab-scroll button:hover{color:var(--ink);background:#ffffff0f}.tab-scroll button.active{background:var(--stone);color:#020617}.arrow{z-index:20;border:1px solid var(--line);width:32px;height:32px;color:var(--ink);cursor:pointer;background:#020617f0;border-radius:999px;place-items:center;font-size:1.15rem;font-weight:900;display:grid;position:absolute;top:50%;transform:translateY(-50%);box-shadow:0 20px 35px #00000059}.arrow.left{left:8px}.arrow.right{right:8px}.right-fade{pointer-events:none;z-index:10;background:linear-gradient(270deg,#101923,#101923d6,#0000);width:80px;position:absolute;top:0;bottom:0;left:auto;right:0}.panel{border:1px solid var(--line);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);background:#02061780;border-radius:32px;padding:clamp(16px,4vw,24px);box-shadow:0 24px 60px #0000004d}.section-title{margin-bottom:18px}.section-title p{color:#cbd5e180;letter-spacing:.25em;text-transform:uppercase;margin:0;font-size:.64rem;font-weight:750}.section-title h2{color:var(--ink);letter-spacing:-.03em;margin:4px 0 0;font-size:clamp(1.25rem,4vw,1.85rem);line-height:1.12}.section-description{color:#cbd5e1a6;max-width:42rem;margin-top:5px;font-size:.92rem;line-height:1.55}.control-box{border:1px solid var(--line);background:#ffffff09;border-radius:26px;margin-bottom:20px;padding:12px}.control-box.horizontal{justify-content:space-between;align-items:center;gap:12px;display:flex}.control-box.stacked{gap:16px;display:grid}.control-box strong{color:var(--ink);font-size:.95rem}.control-box small{color:#cbd5e18c;margin-top:2px;font-size:.76rem;display:block}.control-box p{color:#cbd5e173;letter-spacing:.18em;text-transform:uppercase;margin:0 0 8px;font-size:.7rem;font-weight:800}.segmented{border:1px solid var(--line);background:#02061799;border-radius:999px;padding:4px;display:flex}.segmented button{color:#cbd5e1a6;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:6px 12px;font-size:.74rem;font-weight:750}.segmented button.active{background:var(--stone);color:#020617}.chips-row{scrollbar-width:none;gap:8px;padding-bottom:12px;display:flex;overflow-x:auto}.chips-row::-webkit-scrollbar{display:none}.chip-button{border:1px solid var(--line);color:#e2e8f0b8;cursor:pointer;background:#ffffff0a;border-radius:999px;flex:none;padding:9px 16px;font-size:.86rem;font-weight:750;transition:all .18s}.chip-button.active{background:var(--stone);color:#020617;border-color:#e2e8f0b3;box-shadow:0 14px 30px #00000040}.chip-button:disabled{opacity:.35;cursor:not-allowed}.kana-table-stack{gap:20px;display:grid}.kana-table-row{min-width:0}.row-title{justify-content:space-between;align-items:center;margin-bottom:8px;display:flex}.row-title h3{color:#e2e8f0e6;margin:0;font-size:.92rem}.row-title span{color:#94a3b899;font-size:.74rem}.kana-card-strip{scroll-snap-type:x mandatory;scrollbar-width:none;gap:12px;padding:0 4px 8px;display:flex;overflow-x:auto}.kana-card-strip::-webkit-scrollbar{display:none}.table-kana-card{border:1px solid var(--line);min-height:92px;color:var(--ink);text-align:center;cursor:pointer;scroll-snap-align:start;background:#0f172ab8;border-radius:24px;flex:0 0 31%;padding:16px;transition:all .18s;box-shadow:0 14px 26px #00000026}.table-kana-card:hover{background:#1e293bbd;border-color:#cbd5e14d;transform:translateY(-1px)}.table-kana-card div{font-size:clamp(2.1rem,9vw,3.4rem);font-weight:720;line-height:1}.table-kana-card span{color:#cbd5e199;margin-top:8px;font-size:.92rem;font-weight:650;display:block}.listening-box,.display-box{border:1px solid var(--line);text-align:center;background:#0f172a99;border-radius:32px;margin-bottom:20px;padding:20px;transition:all .18s}.listening-box.correct,.feedback-box.correct{background:#10b98133;border-color:#a7f3d0b3}.listening-box.wrong,.feedback-box.wrong{background:#dc262633;border-color:#fecacab3}.listening-box button,.display-box button,.feedback-box button,.center-actions button{background:var(--stone);color:#020617;cursor:pointer;border:0;border-radius:22px;padding:14px 28px;font-size:1rem;font-weight:900;transition:all .15s;box-shadow:0 18px 28px #00000040}.listening-box button:active,.display-box button:active,.feedback-box button:active,.center-actions button:active{transform:scale(.98)}.listening-box p,.display-box p{color:#cbd5e199;margin:10px 0 0;font-size:.92rem;font-weight:650}.prompt-line{color:#e2e8f0d9;margin:0 0 12px;font-size:.92rem;font-weight:800}.choice-grid{gap:12px;margin-top:14px;display:grid}.kana-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.text-choice-grid{grid-template-columns:1fr}.choice-card{border:1px solid var(--line);min-height:86px;color:var(--ink);text-align:center;cursor:pointer;background:#0f172ab8;border-radius:26px;padding:16px;font-size:clamp(2.2rem,12vw,4.6rem);font-weight:800;transition:all .18s}.choice-card:hover:not(:disabled){background:#1e293bcc;border-color:#cbd5e159}.choice-card.correct,.text-choice.correct{color:#ecfdf5;background:#10b9814d;border-color:#a7f3d0d9;box-shadow:0 0 0 2px #a7f3d094}.choice-card.wrong,.text-choice.wrong{color:#fff1f2;background:#dc262652;border-color:#fecacad9;box-shadow:0 0 0 2px #fecaca73}.feedback-box{border:1px solid var(--line);background:#ffffff09;border-radius:26px;flex-direction:column;gap:12px;margin-top:20px;padding:14px;display:flex}.feedback-box p{color:#cbd5e1a6;margin:0;font-size:.92rem;font-weight:750}.feedback-box button:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}.progress-box{border:1px solid var(--line);background:#0f172a73;border-radius:26px;margin-bottom:20px;padding:14px}.progress-box>div:first-child{color:#cbd5e1b3;justify-content:space-between;gap:12px;font-size:.86rem;display:flex}.progress-box strong{color:var(--ink)}.progress-box>div:last-child{background:#ffffff12;border-radius:999px;height:8px;margin-top:10px;overflow:hidden}.progress-box>div:last-child span{background:#6ee7b7;border-radius:999px;height:100%;transition:width .18s;display:block}.big-token,.number-display{min-height:110px;color:var(--ink);background:#0206179e;border-radius:26px;place-items:center;margin:12px auto 16px;padding:18px;font-weight:900;line-height:1.1;display:grid}.big-token{font-size:clamp(2.5rem,14vw,5rem)}.number-display{font-size:clamp(2.5rem,13vw,4.3rem)}.center-actions{justify-content:center;gap:10px;display:flex}.text-choice{border:1px solid var(--line);color:var(--ink);text-align:left;cursor:pointer;background:#0f172ab3;border-radius:24px;padding:16px;font-size:1rem;font-weight:800;transition:all .18s}.text-choice:hover:not(:disabled){background:#1e293bcc}.empty-note{border:1px solid var(--line);color:#cbd5e1b3;background:#ffffff09;border-radius:28px;padding:18px;line-height:1.65}@media (min-width:768px){.app-root{padding:32px}.app-header{border:1px solid var(--line);border-radius:32px;margin:0 0 20px;padding:20px 24px;position:static}.trainer-pill{display:block}.level-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}.tab-nav{border:1px solid var(--line);background:#ffffff08;border-radius:24px;margin:0 0 20px;padding:8px}.tab-scroll{padding:0;overflow:visible}.tab-scroll>div{flex-wrap:wrap;min-width:0;padding-right:0}.arrow,.right-fade{display:none}.kana-card-strip{grid-template-columns:repeat(5,minmax(0,1fr));padding:0;display:grid;overflow:visible}.table-kana-card{flex-basis:auto;min-width:0}.text-choice-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feedback-box{flex-direction:row;justify-content:space-between;align-items:center}}@media (max-width:520px){.level-tabs{grid-template-columns:1fr}.header-main{align-items:flex-start}.control-box.horizontal{flex-direction:column;align-items:stretch}}.gym-grid{gap:12px;margin-bottom:20px;display:grid}.gym-grid>div{border:1px solid var(--line);background:#0f172a94;border-radius:24px;padding:16px}.gym-grid strong{color:var(--ink);margin-bottom:6px;font-size:1rem;display:block}.gym-grid span{color:#cbd5e1ad;font-size:.92rem;line-height:1.5;display:block}@media (min-width:768px){.gym-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.didactic-box{border:1px solid var(--line);color:#cbd5e1b8;background:#ffffff0a;border-radius:28px;margin-bottom:20px;padding:16px;line-height:1.58}.didactic-box strong{color:var(--ink);margin-bottom:6px;font-size:.95rem;display:block}.didactic-box p{margin:0}.particle-mode-grid{gap:10px;display:grid}.particle-mode-card{border:1px solid var(--line);color:#e2e8f0d1;text-align:left;cursor:pointer;background:#0f172aa3;border-radius:22px;padding:14px;transition:all .18s}.particle-mode-card:hover{background:#1e293bc2;border-color:#cbd5e159}.particle-mode-card.active{background:var(--stone);color:#020617;border-color:#e2e8f0b8;box-shadow:0 16px 32px #00000040}.particle-mode-card strong{margin-bottom:5px;font-size:.93rem;display:block}.particle-mode-card span{opacity:.8;font-size:.78rem;line-height:1.45;display:block}.concept-line{color:#cbd5e1a3;max-width:42rem;margin:-4px auto 16px;line-height:1.5;display:block}.multi-line{white-space:pre-line;text-align:center;font-size:clamp(1.45rem,7vw,3.3rem)}@media (min-width:768px){.particle-mode-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.particle-mode-card{min-height:126px}}.micro-exp{background:linear-gradient(135deg,#ffffff0e,#ffffff06);border:1px solid #e2e8f01f;border-radius:26px;justify-content:space-between;align-items:flex-start;gap:14px;margin-bottom:18px;padding:16px;display:flex}.micro-exp strong{color:var(--ink);margin-bottom:4px;font-size:.96rem;display:block}.micro-exp p{color:#cbd5e1b3;margin:0;font-size:.92rem;line-height:1.55}.micro-exp button,.practice-link{color:#020617;cursor:pointer;background:#e2e8f0e6;border:1px solid #cbd5e12e;border-radius:999px;flex:none;padding:10px 14px;font-size:.78rem;font-weight:900;box-shadow:0 14px 26px #00000038}.worked-example{background:#10b9811a;border:1px solid #a7f3d02e;border-radius:26px;margin-bottom:18px;padding:15px 16px}.worked-example strong{color:#d1fae5;margin-bottom:8px;font-size:.94rem;display:block}.worked-example p{color:#e2e8f0bd;margin:5px 0;font-size:.9rem;line-height:1.55}.explanation-index{gap:10px;margin-bottom:18px;display:grid}.explain-tab{border:1px solid var(--line);color:#e2e8f0d6;text-align:left;cursor:pointer;background:#0f172aa3;border-radius:22px;padding:13px 14px;transition:all .18s}.explain-tab:hover{background:#1e293bc2;border-color:#cbd5e159}.explain-tab.active{background:var(--stone);color:#020617;border-color:#e2e8f0c2;box-shadow:0 16px 32px #00000040}.explain-tab span{letter-spacing:.16em;text-transform:uppercase;opacity:.68;margin-bottom:5px;font-size:.68rem;font-weight:950;display:block}.explain-tab strong{font-size:.92rem;line-height:1.25;display:block}.explanation-reader{border:1px solid var(--line);background:#0f172a9e;border-radius:30px;padding:20px}.explain-kicker{color:#cbd5e180;letter-spacing:.2em;text-transform:uppercase;margin-bottom:8px;font-size:.72rem;font-weight:950}.explanation-reader h3{color:var(--ink);margin:0 0 8px;font-size:1.45rem}.explanation-reader p{color:#cbd5e1bd;margin:10px 0;line-height:1.68}.explain-summary{font-weight:800;color:#e2e8f0!important}.example-strip{background:#0206177a;border:1px solid #e2e8f01f;border-radius:22px;gap:6px;margin:18px 0;padding:14px;display:grid}.example-strip strong{color:#cbd5e18c;text-transform:uppercase;letter-spacing:.16em;font-size:.76rem}.example-strip span{color:var(--ink);font-weight:900;line-height:1.45}@media (min-width:768px){.explanation-index{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:620px){.micro-exp{flex-direction:column}.micro-exp button,.practice-link{width:100%}}.route-hero{background:linear-gradient(135deg,#ffffff13,#ffffff06);border:1px solid #e2e8f01f;border-radius:30px;gap:14px;margin-bottom:22px;padding:20px;display:grid}.route-hero span{color:#cbd5e180;letter-spacing:.18em;text-transform:uppercase;margin-bottom:6px;font-size:.72rem;font-weight:950;display:block}.route-hero h3{color:var(--ink);letter-spacing:-.03em;margin:0 0 8px;font-size:clamp(1.2rem,4vw,1.8rem)}.route-hero p{color:#cbd5e1b8;max-width:52rem;margin:0;line-height:1.62}.route-badge{color:#e2e8f0;background:#0206177a;border:1px solid #cbd5e12e;border-radius:999px;justify-self:start;padding:10px 14px;font-size:.82rem;font-weight:900}.route-timeline:before{content:"";background:linear-gradient(#f5f5f4c7,#a7f3d057,#b36a6152);border-radius:999px;width:2px;position:absolute;top:18px;bottom:18px;left:22px}.route-step{grid-template-columns:46px 1fr;align-items:start;gap:14px;display:grid;position:relative}.route-marker{z-index:2;color:#020617;background:#f5f5f4;border:4px solid #101923;border-radius:999px;place-items:center;width:46px;height:46px;font-weight:950;display:grid;position:relative;box-shadow:0 16px 30px #00000047}.route-card{border:1px solid var(--line);background:#0f172aa3;border-radius:28px;padding:18px;transition:all .18s}.route-step.focus .route-card{border-color:#a7f3d0b3;box-shadow:0 0 0 2px #a7f3d038,0 20px 38px #00000047}.route-tag{color:#cbd5e180;letter-spacing:.18em;text-transform:uppercase;margin-bottom:7px;font-size:.68rem;font-weight:950}.route-card h3{color:var(--ink);letter-spacing:-.02em;margin:0 0 10px;font-size:1.25rem}.route-card p{color:#cbd5e1b8;margin:10px 0;line-height:1.62}.route-objective{color:#e2e8f0d1;background:#10b98114;border:1px solid #a7f3d029;border-radius:20px;margin-bottom:12px;padding:12px 13px;line-height:1.55}.route-objective strong{color:#d1fae5}.route-example{background:#02061780;border:1px solid #e2e8f01f;border-radius:20px;gap:5px;margin:14px 0;padding:12px 13px;display:grid}.route-example strong{color:#cbd5e185;letter-spacing:.16em;text-transform:uppercase;font-size:.7rem}.route-example span{color:var(--ink);font-weight:900;line-height:1.45}.route-note{font-size:.9rem;color:#cbd5e194!important}.route-footer-note{background:#ffffff09;border:1px solid #e2e8f01f;border-radius:28px;gap:6px;padding:16px;display:grid}.route-footer-note strong{color:var(--ink)}.route-footer-note span{color:#cbd5e1b3;line-height:1.58}@media (min-width:900px){.route-hero{grid-template-columns:1fr auto;align-items:center}.route-timeline{gap:20px}.route-step{grid-template-columns:56px 1fr}.route-timeline:before{left:27px}.route-marker{width:56px;height:56px}.route-card{padding:22px}}.inline-disclosure{margin:12px 0 16px}.disclosure-toggle{color:#020617;cursor:pointer;background:#e2e8f0e6;border:1px solid #cbd5e12e;border-radius:18px;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:11px 14px;font-size:.8rem;font-weight:950;display:flex;box-shadow:0 12px 24px #0003}.disclosure-toggle b{background:#0206171a;border-radius:999px;place-items:center;width:24px;height:24px;font-size:1rem;display:grid}.disclosure-content{margin-top:10px;animation:.18s ease-out disclosureOpen}@keyframes disclosureOpen{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}.explanation-accordion-body{background:#02061780;border:1px solid #e2e8f021;border-radius:24px;padding:17px}.explanation-accordion-body h4{color:var(--ink);letter-spacing:-.02em;margin:0 0 8px;font-size:1.18rem}.explanation-accordion-body p{color:#cbd5e1bd;margin:9px 0;line-height:1.66}.explanation-accordion-body .explain-summary{font-weight:850;color:#e2e8f0!important}.micro-disclosure{margin-top:-8px}.route-disclosure{margin:14px 0}.practice-link.secondary{width:auto;margin-top:10px;display:inline-flex}.micro-exp{margin-bottom:10px}.route-card .practice-link{margin-top:4px}@media (max-width:620px){.disclosure-toggle{border-radius:16px}.explanation-accordion-body{padding:15px}}.route-card-actions{gap:8px;margin-top:14px;display:grid}.route-card .route-disclosure{margin:0}.route-card .practice-link{justify-self:start;margin-top:0}.route-card .explanation-accordion-body{background:#0206179e}.explanation-accordion-body p{font-size:.94rem}.explanation-accordion-body .example-strip{margin-top:18px}.explanation-accordion-body .practice-link.secondary{margin-top:12px}@media (max-width:620px){.route-card .practice-link{justify-self:stretch;width:100%}}.rich-explanation{gap:14px;display:grid}.rich-explanation .explain-section{border-top:1px solid #e2e8f01a;padding-top:12px}.rich-explanation .explain-section>strong,.mental-model>strong,.diagram-box>strong,.guided-examples>strong,.mistake-box>strong,.practice-tips>strong{color:#f8fafc;text-transform:uppercase;letter-spacing:.16em;font-size:.78rem}.mental-model{background:#8fa39314;border:1px solid #8fa39338;border-radius:18px;padding:13px 14px}.mental-model p{margin-bottom:0!important}.diagram-box{background:#0f172aa8;border:1px dashed #e2e8f038;border-radius:18px;gap:8px;padding:13px 14px;display:grid}.diagram-line{color:#e2e8f0;white-space:pre-wrap;background:#ffffff0b;border:1px solid #ffffff0f;border-radius:12px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.42}.guided-examples{background:#b36a6112;border:1px solid #b36a6133;border-radius:18px;gap:9px;padding:13px 14px;display:grid}.guided-example{border-top:1px solid #ffffff14;gap:4px;padding-top:9px;display:grid}.guided-example:first-of-type{border-top:0;padding-top:0}.guided-example .jp-text{color:#f8fafc;letter-spacing:.03em;font-size:1.15rem;font-weight:850}.guided-example span:not(.jp-text){color:#cbd5e1c7}.guided-example em{color:#d8cbb2;font-style:normal}.mistake-box{background:#f472b612;border:1px solid #f472b633;border-radius:18px;padding:13px 14px}.mistake-box p{margin-bottom:0!important}.practice-tips{background:#a8b9bf12;border:1px solid #a8b9bf33;border-radius:18px;padding:13px 14px}.practice-tips ul{color:#cbd5e1c7;margin:10px 0 0;padding-left:18px;line-height:1.62}.practice-tips li+li{margin-top:4px}@media (max-width:620px){.guided-example .jp-text{font-size:1.05rem}.diagram-line{font-size:.82rem}}.learner-explanation{gap:12px}.learner-flow{gap:12px;display:grid}.learner-flow p{color:#e2e8f0d1;line-height:1.76;margin:0!important}.learner-flow strong{color:#f8fafc;font-weight:950}.inline-diagram{background:#0f172ab8;border:1px solid #e2e8f026;border-radius:18px;gap:7px;margin:2px 0;padding:13px 14px;display:grid}.inline-diagram div{color:#e2e8f0;white-space:pre-wrap;background:#ffffff0b;border:1px solid #ffffff0f;border-radius:12px;padding:8px 10px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.48}.learner-explanation .explain-summary{margin-bottom:2px!important}@media (max-width:620px){.inline-diagram div{font-size:.82rem}.learner-flow p{font-size:.92rem}}.training-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:0 0 16px;display:grid}.training-stats>div{border:1px solid var(--line);background:#ffffff0b;border-radius:18px;min-height:74px;padding:12px 14px}.training-stats span{color:#cbd5e18f;letter-spacing:.14em;text-transform:uppercase;font-size:.68rem;font-weight:800;display:block}.training-stats strong{color:var(--ink);margin-top:6px;font-size:1.05rem;line-height:1.15;display:block}.training-stats .stat-errors{grid-column:1/-1;min-height:auto}.training-stats .stat-errors p{color:#f5f1e9d6;margin:7px 0 0;line-height:1.45}@media (max-width:620px){.training-stats{grid-template-columns:1fr}}.tab-nav-head{justify-content:space-between;align-items:center;gap:12px;padding:0 16px 8px;display:flex}.tab-nav-head span{color:#e2e8f0d1;letter-spacing:.2em;text-transform:uppercase;font-size:.72rem;font-weight:900}.tab-nav-head small{color:#cbd5e19e;font-size:.78rem;font-weight:850}.tab-strip-wrap{position:relative}.tab-strip-wrap .tab-scroll{scroll-behavior:smooth;scroll-snap-type:x proximity;padding:0 52px 12px}.tab-strip-wrap .tab-scroll>div{padding-right:0}.tab-strip-wrap .tab-scroll button{scroll-snap-align:center}.left-fade,.right-fade{pointer-events:none;z-index:10;width:58px;position:absolute;top:0;bottom:10px}.left-fade{background:linear-gradient(90deg,#101923,#101923d1,#0000);left:0}.right-fade{background:linear-gradient(270deg,#101923,#101923d1,#0000);right:0}.tab-strip-wrap .arrow{top:calc(50% - 5px)}.tab-strip-wrap .arrow.left{left:8px}.tab-strip-wrap .arrow.right{right:8px}@media (min-width:768px){.tab-nav-head{display:none}.tab-strip-wrap .tab-scroll{padding:0;overflow:visible}.tab-strip-wrap .tab-scroll>div{flex-wrap:wrap;min-width:0}.tab-strip-wrap .arrow,.left-fade,.right-fade{display:none}}.training-stats{display:none}.training-signal{z-index:30;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:linear-gradient(135deg,#0f172af0,#1f2937e6);border:1px solid #e2e8f029;border-radius:20px;margin:0 0 14px;padding:12px 14px;position:sticky;top:10px;box-shadow:0 16px 34px #00000038}.signal-main{justify-content:space-between;align-items:center;gap:14px;display:flex}.signal-title{min-width:0}.signal-title span{color:#cbd5e18f;letter-spacing:.16em;text-transform:uppercase;font-size:.66rem;font-weight:900;display:block}.signal-title strong{color:var(--ink);white-space:nowrap;text-overflow:ellipsis;margin-top:3px;font-size:.98rem;line-height:1.15;display:block;overflow:hidden}.signal-metrics{flex-wrap:wrap;justify-content:flex-end;gap:6px;display:flex}.signal-metrics span{color:#f5f1e9e0;white-space:nowrap;background:#ffffff0e;border:1px solid #ffffff14;border-radius:999px;align-items:center;min-height:28px;padding:5px 9px;font-size:.78rem;font-weight:850;display:inline-flex}.training-signal.complete{border-color:#a8b9bf66;box-shadow:0 18px 40px #a8b9bf1a,0 16px 34px #00000038}.round-complete-note{color:#e2e8f0c7;border-top:1px solid #ffffff14;margin-top:9px;padding-top:9px;font-size:.82rem;line-height:1.45}.signal-errors{border-top:1px solid #ffffff14;margin-top:8px;padding-top:8px}.signal-errors summary{cursor:pointer;color:#cbd5e1c7;letter-spacing:.08em;text-transform:uppercase;font-size:.76rem;font-weight:900}.signal-errors div{flex-wrap:wrap;gap:6px;margin-top:8px;display:flex}.signal-errors span{color:#f5f1e9db;background:#f472b614;border:1px solid #f472b62e;border-radius:999px;padding:5px 8px;font-size:.78rem;font-weight:800}@media (max-width:620px){.training-signal{border-radius:18px;padding:11px 12px;top:6px}.signal-main{gap:9px;display:grid}.signal-metrics{justify-content:flex-start;gap:5px}.signal-metrics span{min-height:26px;padding:4px 8px;font-size:.73rem}}.control-box.stacked{border-radius:20px;gap:10px;margin-bottom:14px;padding:10px}.control-box p{letter-spacing:.16em;margin-bottom:7px;font-size:.66rem}.exercise-card.start-only{background:linear-gradient(135deg,#ffffff0c,#ffffff05);place-items:center;min-height:96px;padding:18px;display:grid}.exercise-card.start-only .primary-action{width:min(100%,310px);margin:0}.exercise-card.active{margin-top:10px}.exercise-card.active .exercise-kicker{margin-bottom:8px}.training-signal+.control-box,.control-box+.exercise-card.start-only,.control-box+.exercise-card.active{margin-top:0}.feedback-box p{line-height:1.48}@media (max-width:620px){.control-box.stacked{border-radius:18px;padding:9px}.exercise-card.start-only{min-height:84px;padding:14px}}.tab-nav-head{display:none!important}.row-title{justify-content:flex-start}.row-title span{display:none!important}.reset-row{justify-content:flex-end;align-items:center;gap:8px;margin:-4px 0 12px;display:flex}.ghost-action{color:#e2e8f0b8;letter-spacing:.03em;cursor:pointer;background:#ffffff09;border:1px solid #e2e8f021;border-radius:999px;padding:8px 11px;font-size:.74rem;font-weight:850;transition:all .16s}.ghost-action:hover{color:var(--ink);background:#ffffff12}.route-timeline{gap:16px;margin:0;display:grid;position:relative}.route-timeline:before{content:"";z-index:0;background:linear-gradient(#f5f1e9e0,#a7f3d07a,#b36a6166);border-radius:999px;width:2px;position:absolute;top:24px;bottom:24px;left:23px;box-shadow:0 0 18px #f5f1e91a}.route-step{z-index:1;grid-template-columns:48px minmax(0,1fr);align-items:start;gap:14px;display:grid;position:relative}.route-marker{z-index:2;color:#020617;letter-spacing:-.02em;white-space:nowrap;background:#f5f1e9;border:4px solid #101923;border-radius:999px;place-items:center;width:48px;height:48px;font-size:.82rem;font-weight:950;line-height:1;display:grid;position:relative;box-shadow:0 16px 30px #00000052}.route-marker span{transform:translateY(-1px)}.route-step .route-card{min-width:0}.route-step .route-card-actions{margin-top:14px}.route-step .route-disclosure{margin:0}.route-step .practice-link,.explanation-accordion-body .practice-link.secondary{display:none!important}@media (min-width:900px){.route-timeline{gap:20px}.route-timeline:before{top:28px;bottom:28px;left:27px}.route-step{grid-template-columns:56px minmax(0,1fr);gap:16px}.route-marker{width:56px;height:56px;font-size:.88rem}}.panel,.section-title,.section-description,.control-box,.exercise-card,.feedback-box,.training-signal,.route-card,.route-objective,.explanation-accordion-body,.choice-grid,.text-choice,.choice-card,.table-kana-card,.chip-button,.disclosure-toggle,.big-prompt,.prompt-block,.prompt-line,.signal-title,.signal-title strong,.signal-metrics,.signal-metrics span,.signal-errors span{overflow-wrap:anywhere;word-break:normal;min-width:0;max-width:100%}.text-choice,.choice-card,.feedback-box p,.route-card h3,.explanation-accordion-body h4,.inline-diagram div,.diagram-line{white-space:normal}.big-prompt,.prompt-block{line-height:1.25}@media (max-width:620px){.text-choice{padding:14px;font-size:.94rem}.signal-title strong{white-space:normal}.feedback-box{gap:10px}.feedback-box button{width:100%}.route-step{grid-template-columns:46px minmax(0,1fr);gap:12px}.route-marker{width:46px;height:46px;font-size:.78rem}.route-timeline:before{left:22px}}.primary-action{background:var(--stone);color:#020617;letter-spacing:-.01em;cursor:pointer;border:0;border-radius:22px;justify-content:center;align-items:center;width:min(100%,340px);min-height:56px;padding:15px 28px;font-size:1rem;font-weight:950;transition:transform .15s,box-shadow .15s,background .15s;display:inline-flex;box-shadow:0 18px 30px #00000042}.primary-action:hover{background:#fffaf0;box-shadow:0 22px 36px #0000004d}.primary-action:active{transform:scale(.985)}.exercise-card.start-only .primary-action,.listening-box .primary-action{width:min(100%,340px);min-height:56px;padding:15px 28px;font-size:1rem}.reset-row,.ghost-action{display:none!important}.kana-strip-frame{min-width:0;position:relative}.kana-strip-frame:before,.kana-strip-frame:after{content:"";z-index:5;pointer-events:none;opacity:.92;width:42px;position:absolute;top:0;bottom:8px}.kana-strip-frame:before{background:linear-gradient(90deg,#101923fa,#101923a3,#0000);left:0}.kana-strip-frame:after{background:linear-gradient(270deg,#101923fa,#101923a3,#0000);right:0}.kana-table-row{position:relative}.kana-table-row .row-title:after{content:"‹  ›";color:#f5f1e9c2;letter-spacing:.12em;background:#0206176b;border:1px solid #e2e8f026;border-radius:999px;margin-left:auto;padding:4px 9px;font-size:.78rem;font-weight:950;box-shadow:0 12px 24px #0000002e}@media (min-width:768px){.kana-strip-frame:before,.kana-strip-frame:after,.kana-table-row .row-title:after{display:none}}@media (max-width:620px){.primary-action,.exercise-card.start-only .primary-action,.listening-box .primary-action{border-radius:20px;width:100%;min-height:58px}}:root{--app-header-height:92px}.listening-box,.exercise-card.active,[data-training-work-area]{scroll-margin-top:calc(var(--app-header-height,92px) + 18px)}.route-timeline{gap:22px!important;padding:0!important}.route-timeline:before{z-index:0!important;top:18px!important;bottom:18px!important;left:50%!important;transform:translate(-50%)!important}.route-step{grid-template-columns:1fr!important;align-items:start!important;gap:10px!important}.route-marker{justify-self:center!important}.route-step .route-card{z-index:2!important;background:#0f172af2!important;width:100%!important;max-width:620px!important;margin-inline-start:auto!important;margin-inline-end:auto!important;position:relative!important}.route-objective{font-weight:850}.route-objective strong{display:none!important}@media (min-width:900px){.route-timeline:before{top:24px!important;bottom:24px!important;left:50%!important}.route-step{grid-template-columns:1fr!important;gap:12px!important}.route-marker{width:56px;height:56px;justify-self:center!important}}@media (max-width:620px){:root{--app-header-height:86px}.route-timeline{gap:18px!important}.route-timeline:before{top:14px!important;bottom:14px!important;left:50%!important}.route-step{grid-template-columns:1fr!important;gap:8px!important}.route-marker{border-width:4px!important;width:48px!important;height:48px!important;font-size:.82rem!important}.route-step .route-card{border-radius:26px!important;max-width:none!important;padding:18px 16px!important}.route-step .route-card-actions{margin-top:12px!important}.route-objective{padding:13px 14px!important;line-height:1.55!important}.listening-box,.exercise-card.active,[data-training-work-area]{scroll-margin-top:calc(var(--app-header-height,86px) + 14px)}}:root{--training-scroll-offset:calc(var(--app-header-height,92px) + 18px)}.listening-box,.exercise-card.active,[data-training-work-area],.prompt-line,.choice-grid{scroll-margin-top:var(--training-scroll-offset)}@media (max-width:620px){:root{--training-scroll-offset:calc(var(--app-header-height,86px) + 14px)}}.learner-flow h5{color:#cbded1;letter-spacing:.03em;text-transform:none;margin:1.1rem 0 .35rem;font-size:.96rem}.lesson-material{background:#8fa3931a;border:1px solid #8fa39359;border-radius:1rem;flex-direction:column;align-items:flex-start;gap:.75rem;margin-top:1.1rem;padding:1rem;display:flex}.lesson-material span{color:#f2eee4b8;font-size:.88rem;line-height:1.45}.resource-download{color:#14221e;background:#efe8dd;border-radius:999px;justify-content:center;align-items:center;padding:.78rem 1rem;font-weight:800;text-decoration:none;display:inline-flex;box-shadow:0 10px 24px #0000002e}.resource-download:active{transform:translateY(1px)}.route-objective{line-height:1.55}.route-disclosure .disclosure-toggle span{font-weight:800}.route-step .route-card-actions{flex-direction:column!important;align-items:stretch!important;gap:.75rem!important;display:flex!important}.route-download{width:100%!important;min-height:48px!important;font-size:.92rem!important}.route-disclosure .disclosure-toggle{width:100%!important}.app-root{overflow:clip visible!important}.stats-reset-button{border:1px solid var(--line);color:#e2e8f0cc;cursor:pointer;white-space:nowrap;background:#ffffff0a;border-radius:999px;padding:8px 12px;font-size:.72rem;font-weight:850;transition:background .16s,border-color .16s,color .16s}.stats-reset-button:hover{color:var(--ink);background:#ffffff14;border-color:#ffffff36}.voice-status{color:#f8e3b6;background:#f2c97d12;border:1px solid #f2c97d55;border-radius:18px;margin:0 0 14px;padding:12px 14px;font-size:.88rem;line-height:1.5}.voice-status.loading{color:#d9e8ee;background:#8faab512;border-color:#8faab555}.voice-status.unsupported,.voice-status.missing{color:#f5d5d0;background:#b36a6118;border-color:#b36a6170}.primary-action:disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none}.table-kana-card:disabled{opacity:.72;cursor:default;background:#0f172a8a;border-style:dashed}.table-kana-card:disabled:hover{border-color:var(--line);background:#0f172a8a;transform:none}button:focus-visible{outline-offset:3px;outline:3px solid #a7f3d0}a:focus-visible{outline-offset:3px;outline:3px solid #a7f3d0}[tabindex="-1"]:focus-visible{outline-offset:3px;outline:3px solid #a7f3d0}[data-training-work-area]:focus{outline:none}@media (max-width:620px){.header-main{align-items:flex-start}.stats-reset-button{white-space:normal;max-width:112px;padding:7px 10px;font-size:.68rem;line-height:1.15}.voice-status{border-radius:16px;padding:11px 12px;font-size:.84rem}}.round-progress{border-top:1px solid #ffffff14;margin-top:10px;padding-top:10px}.round-progress-labels{color:#cbd5e1b3;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;font-size:.74rem;font-weight:800;display:grid}.round-progress-labels strong{color:#f5f1e9;text-align:center;font-size:.78rem}.round-progress-labels span:last-child{text-align:right}.round-progress-track{background:#ffffff14;border:1px solid #ffffff12;border-radius:999px;height:10px;margin-top:7px;overflow:hidden}.round-progress-track span{background:linear-gradient(90deg,#8faab5,#6ee7b7);border-radius:999px;height:100%;transition:width .22s;display:block;box-shadow:0 0 16px #6ee7b75c}.training-signal.complete .round-progress-track span{background:linear-gradient(90deg,#6ee7b7,#a7f3d0)}.last-attempt-summary{color:#dbe7eb;background:#ffffff09;border:1px solid #ffffff12;border-radius:13px;justify-content:space-between;gap:10px;margin-top:9px;padding:8px 10px;font-size:.76rem;display:flex}.last-attempt-summary strong{color:#f8fafc}.last-attempt-summary span{color:#cbd5e1c2}.training-signal.complete .round-complete-note{color:#ecfdf5;background:#10b98117;border:1px solid #6ee7b73d;border-radius:13px;margin-top:10px;padding:9px 10px;font-weight:850}.feedback-box button:not(:disabled){min-width:145px}@media (max-width:620px){.last-attempt-summary{align-items:flex-start;display:grid}.feedback-box button:not(:disabled){width:100%}}.memory-controls{margin-bottom:14px}.memory-pool-note{background:#8faab512;border:1px solid #8faab538;border-radius:14px;padding:10px 12px;line-height:1.45;color:#d9e8ee!important}.memory-start{border:1px solid var(--line);background:linear-gradient(135deg,#ffffff0d,#ffffff05);border-radius:28px;place-items:center;min-height:132px;padding:22px;display:grid}.memory-session-meta{flex-wrap:wrap;gap:7px;margin:0 0 12px;display:flex}.memory-session-meta span{color:#f5f1e9df;background:#ffffff0d;border:1px solid #ffffff16;border-radius:999px;padding:7px 10px;font-size:.78rem;font-weight:850}.memory-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.memory-card{aspect-ratio:4/5;cursor:pointer;perspective:900px;background:0 0;border:0;border-radius:20px;min-width:0;padding:0}.memory-card-inner{width:100%;height:100%;transform-style:preserve-3d;transition:transform .42s cubic-bezier(.2,.72,.2,1);display:block;position:relative}.memory-card.revealed .memory-card-inner{transform:rotateY(180deg)}.memory-card-back,.memory-card-front{-webkit-backface-visibility:hidden;backface-visibility:hidden;border:1px solid #ffffff21;border-radius:20px;place-items:center;width:100%;height:100%;padding:10px;display:grid;position:absolute;top:0;bottom:0;left:0;right:0;overflow:hidden}.memory-card-back{color:#f5f1e9cc;letter-spacing:.12em;background:radial-gradient(circle at 28% 18%,#8faab52e,#0000 34%),linear-gradient(145deg,#263743,#111b25);font-size:clamp(.72rem,3vw,.9rem);font-weight:950;box-shadow:0 14px 28px #0000003d,inset 0 0 0 1px #ffffff0a}.memory-card-back:after{content:"";border:1px solid #ffffff1a;border-radius:14px;position:absolute;top:8px;bottom:8px;left:8px;right:8px}.memory-card-front{color:#f8fafc;background:linear-gradient(145deg,#f5f1e91a,#0f172ad9);transform:rotateY(180deg);box-shadow:0 14px 28px #00000042}.memory-card-front b{font-size:clamp(2rem,9vw,4.25rem);font-weight:850;line-height:1}.memory-card-front small{color:#d9e8ee;letter-spacing:.05em;margin-top:7px;font-size:.68rem;font-weight:900;display:block}.memory-card.matched .memory-card-front{background:linear-gradient(145deg,#10b98142,#0f2d29e8);border-color:#a7f3d0a3;box-shadow:0 0 0 2px #a7f3d047,0 14px 30px #00000042}.memory-card:hover:not(.revealed) .memory-card-inner{transform:translateY(-2px)}.memory-card:active .memory-card-inner{scale:.985}.memory-card:focus-visible{outline-offset:4px}.memory-complete{text-align:center;background:linear-gradient(135deg,#10b98124,#ffffff08);border:1px solid #a7f3d052;border-radius:26px;margin-top:16px;padding:20px}.memory-complete strong{color:#ecfdf5;font-size:1.2rem}.memory-complete p{color:#d1fae5d6;margin:7px 0 16px;line-height:1.5}.memory-complete .primary-action{width:min(100%,300px)}.memory-actions{justify-content:center;margin-top:14px;display:flex}.memory-actions .ghost-action{display:inline-flex!important}.memory-controls,.memory-grid,.memory-card,.memory-card-inner,.memory-card-back,.memory-card-front{min-width:0;max-width:100%}@media (min-width:620px){.memory-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.memory-card,.memory-card-back,.memory-card-front{border-radius:22px}}@media (min-width:900px){.memory-grid{grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}}@media (max-width:620px){.round-progress{margin-top:8px;padding-top:8px}.round-progress-labels{font-size:.7rem}.round-progress-track{height:9px}.memory-start{border-radius:22px;min-height:108px;padding:16px}.memory-grid{gap:8px}.memory-card,.memory-card-back,.memory-card-front{border-radius:16px}.memory-card-back:after{border-radius:11px;top:6px;bottom:6px;left:6px;right:6px}.memory-card-front small{font-size:.61rem}.memory-session-meta span{font-size:.72rem}.memory-complete{border-radius:22px;padding:17px}}@media (prefers-reduced-motion:reduce){.round-progress-track span,.memory-card-inner{transition:none}.memory-card:hover:not(.revealed) .memory-card-inner{transform:none}.memory-card.revealed .memory-card-inner{transform:rotateY(180deg)}}.reading-exercise{text-align:center}.reading-exercise .exercise-kicker{text-align:center;margin-inline-start:auto;margin-inline-end:auto}.reading-exercise .big-prompt{margin-inline-start:auto;margin-inline-end:auto}.audio-prompt-button{color:#020617;cursor:pointer;background:var(--stone);border:1px solid #e2e8f038;border-radius:22px;justify-content:center;align-items:center;width:min(100%,340px);min-height:62px;margin:10px auto 16px;padding:15px 24px;font-size:1rem;font-weight:950;transition:transform .15s,box-shadow .15s,background .15s;display:inline-flex;box-shadow:0 18px 30px #00000042}.audio-prompt-button:hover{background:#fffaf0;box-shadow:0 22px 36px #0000004d}.audio-prompt-button:active{transform:scale(.985)}@media (max-width:620px){.audio-prompt-button{border-radius:20px;width:100%;min-height:58px}}.header-main p,.trainer-pill span,.section-title p,.control-box p{color:#aeb8c4}.level-tabs small{color:#b6c0cb;opacity:1}.level-tabs button.active small{color:#334155}.control-box small,.row-title span{color:#aeb8c4}.tab-scroll button,.level-tabs button{transition:none}.tab-scroll button:focus-visible{outline-offset:3px;outline:3px solid #a7f3d0}.level-tabs button:focus-visible{outline-offset:3px;outline:3px solid #a7f3d0}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}:not(.stroke-demo-path),:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media not (min-width:768px){.app-header{position:relative;top:auto}.header-main{gap:10px}.level-tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.level-tabs button{min-width:0;padding:9px 10px}.level-tabs span{font-size:.86rem}.level-tabs small{white-space:nowrap;text-overflow:ellipsis;font-size:.66rem;overflow:hidden}.tab-nav{z-index:38;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#101923f2;position:sticky;top:0}.tab-strip-wrap .tab-scroll{padding:6px 52px 12px 16px}.tab-scroll button{min-height:44px;padding:10px 16px}.tab-strip-wrap .arrow{width:40px;height:40px;top:calc(50% - 3px)}.training-signal{top:64px}.panel{scroll-margin-top:66px}}.kana-table-row .row-title:after{content:"Desliza ›"}@media not (min-width:768px){.app-header{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#101923 0%,#101923f8 100%)}.tab-nav{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(#101923 0%,#101923fa 78%,#101923f3 100%)}.panel{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(155deg,#0b1420fa 0%,#08111cf6 58%,#0d1722f8 100%);box-shadow:0 18px 42px #0000002b}.training-signal{-webkit-backdrop-filter:none;backdrop-filter:none;background:linear-gradient(135deg,#111d2afc,#172230fa);box-shadow:0 10px 24px #0000002b}.table-kana-card{box-shadow:none}.table-kana-card:hover{transform:none}.route-marker{box-shadow:0 8px 18px #00000038}.disclosure-toggle,.resource-download.route-download{box-shadow:0 7px 16px #00000024}.route-step{content-visibility:auto;contain-intrinsic-size:auto 360px}.kana-table-row{content-visibility:auto;contain-intrinsic-size:auto 128px}}.app-fatal{place-items:center;padding:24px;display:grid}.app-fatal section{border:1px solid var(--line);background:linear-gradient(145deg,#0f172ae8,#020617e8);border-radius:28px;width:min(100%,520px);padding:clamp(22px,6vw,38px);box-shadow:0 24px 60px #00000059}.app-fatal p{color:#a7f3d0;letter-spacing:.18em;text-transform:uppercase;margin:0;font-size:.72rem;font-weight:900}.app-fatal h1{letter-spacing:-.03em;margin:8px 0 10px;font-size:clamp(1.55rem,6vw,2.25rem)}.app-fatal span{color:#cbd5e1;line-height:1.6;display:block}.app-fatal button{color:#020617;cursor:pointer;background:var(--stone);border:0;border-radius:16px;min-height:46px;margin-top:22px;padding:11px 16px;font-weight:900}.stroke-lab-hero{background:linear-gradient(135deg,#a8b9bf17,#0f172ad1 48%,#10b98112);border:1px solid #a8b9bf38;border-radius:24px;justify-content:space-between;align-items:center;gap:22px;margin-bottom:14px;padding:16px 18px;display:flex;box-shadow:inset 0 1px #ffffff0a,0 18px 34px #00000024}.stroke-lab-hero>div:first-child{min-width:0;display:grid}.stroke-lab-hero span,.stroke-selector-label span,.stroke-practice-toolbar>div>span{color:#cbd5e18f;letter-spacing:.18em;text-transform:uppercase;font-size:.66rem;font-weight:950}.stroke-lab-hero strong{color:#f8fafc;margin-top:4px;font-size:1.02rem}.stroke-lab-hero small{color:#cbd5e19e;margin-top:3px;font-size:.78rem}.stroke-hero-progress{flex:0 0 min(220px,32%);min-width:145px}.stroke-hero-progress b{color:#d1fae5;text-align:right;margin-bottom:7px;font-size:.8rem;display:block}.stroke-hero-progress>div{background:#ffffff12;border:1px solid #ffffff0b;border-radius:999px;height:9px;overflow:hidden}.stroke-hero-progress span{border-radius:inherit;background:linear-gradient(90deg,#a8b9bf,#6ee7b7);height:100%;transition:width .3s;display:block;box-shadow:0 0 14px #6ee7b766}.stroke-selector-box{border:1px solid var(--line);background:#ffffff08;border-radius:24px;margin-bottom:16px;padding:14px}.stroke-selector-label{justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;display:flex}.stroke-selector-label small{color:#cbd5e18f;font-size:.76rem}.stroke-row-selector{scrollbar-width:none;gap:8px;padding-bottom:11px;display:flex;overflow-x:auto}.stroke-row-selector::-webkit-scrollbar{display:none}.stroke-kana-selector::-webkit-scrollbar{display:none}.stroke-row-chip{color:#e2e8f0c9;cursor:pointer;background:#0f172ab3;border:1px solid #e2e8f023;border-radius:18px;flex:0 0 74px;min-height:58px;padding:8px 10px;transition:all .16s;display:grid}.stroke-row-chip strong{font-size:.82rem}.stroke-row-chip small{color:#cbd5e182;margin-top:2px;font-size:.67rem}.stroke-row-chip:hover{background:#1e293bd1;border-color:#cbd5e147;transform:translateY(-1px)}.stroke-row-chip.active{color:#020617;background:#f5f5f4;border-color:#fff;box-shadow:0 14px 28px #0000003d}.stroke-row-chip.active small{color:#334155}.stroke-kana-selector{scrollbar-width:none;border-top:1px solid #ffffff10;gap:8px;padding-top:11px;display:flex;overflow-x:auto}.stroke-kana-chip{color:#f8fafc;cursor:pointer;background:#02061775;border:1px solid #e2e8f021;border-radius:18px;flex:0 0 72px;min-height:68px;padding:8px;transition:all .16s;display:grid;position:relative}.stroke-kana-chip b{font-size:1.65rem;font-weight:850;line-height:1}.stroke-kana-chip span{color:#cbd5e18f;margin-top:4px;font-size:.68rem;font-style:normal;font-weight:850}.stroke-kana-chip i{color:#052e2b;background:#a7f3d0;border:2px solid #0f172a;border-radius:999px;place-items:center;width:18px;height:18px;font-size:.62rem;font-style:normal;font-weight:950;display:grid;position:absolute;top:-5px;right:-4px;box-shadow:0 5px 12px #0000004d}.stroke-kana-chip:hover{background:#1e293bbb;border-color:#cbd5e147}.stroke-kana-chip.active{color:#020617;background:linear-gradient(145deg,#f5f5f4,#dce4e7);border-color:#fff;box-shadow:0 14px 26px #00000040}.stroke-kana-chip.active span{color:#334155}.stroke-kana-chip.mastered:not(.active){background:#10b98112;border-color:#a7f3d04d}.stroke-workspace{gap:16px;display:grid}.stroke-card{background:linear-gradient(145deg,#0f172ad9,#020617c7);border:1px solid #e2e8f023;border-radius:28px;min-width:0;padding:16px;box-shadow:0 24px 46px #0000002e,inset 0 1px #ffffff08}.stroke-card-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:13px;display:flex}.stroke-card-head>div{min-width:0;display:grid}.stroke-card-head span{color:#cbd5e17d;letter-spacing:.18em;font-size:.65rem;font-weight:950}.stroke-card-head strong{color:#f8fafc;margin-top:3px;font-size:1.05rem}.stroke-card-head em{color:#d9e8ee;white-space:nowrap;background:#ffffff0b;border:1px solid #ffffff12;border-radius:999px;padding:6px 9px;font-size:.72rem;font-style:normal;font-weight:900}.stroke-stage{aspect-ratio:1;background:radial-gradient(circle at 50% 42%,#a8b9bf12,#020617b0 66%),linear-gradient(145deg,#172334,#0b1420);border:1px solid #e2e8f024;border-radius:26px;width:min(100%,410px);margin:0 auto;padding:11px;position:relative;overflow:hidden;box-shadow:inset 0 0 0 1px #ffffff05,inset 0 24px 58px #ffffff04,0 18px 34px #0003}.stroke-stage:before{content:"";pointer-events:none;background:linear-gradient(135deg,#ffffff0b,#0000 35%);position:absolute;top:0;bottom:0;left:0;right:0}.stroke-svg{width:100%;height:100%;display:block;position:relative}.stroke-grid{fill:none;stroke:#cbd5e11f;stroke-width:.65px;stroke-dasharray:3 3}.stroke-grid rect{stroke:#cbd5e12c;stroke-dasharray:none}.stroke-grid .diagonal{stroke:#cbd5e112;stroke-dasharray:2.5 3.5}.stroke-model-ghost,.stroke-practice-ghost{fill:none;stroke:#94a3b82b;stroke-width:5.4px;stroke-linecap:round;stroke-linejoin:round}.stroke-practice-ghost{stroke:#cbd5e112;stroke-width:5.1px}.stroke-demo-path{fill:none;stroke:#f8fafc;stroke-width:5.3px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:1;stroke-dashoffset:1px;filter:drop-shadow(0 2px 3px #00000070)drop-shadow(0 0 4px #a8b9bf42);animation-name:strokeDraw;animation-timing-function:cubic-bezier(.22,.78,.25,1);animation-fill-mode:forwards}@keyframes strokeDraw{0%{opacity:.25;stroke-dashoffset:1px}18%{opacity:1}to{opacity:1;stroke-dashoffset:0}}.stroke-number{opacity:0;animation:.26s ease-out forwards strokeNumberIn}.stroke-number circle{fill:#dce4e7;stroke:#0f172a;stroke-width:1px}.stroke-number text{fill:#020617;text-anchor:middle;font-size:7px;font-weight:950}@keyframes strokeNumberIn{0%{opacity:0;transform-origin:50%;transform:scale(.6)}to{opacity:1;transform-origin:50%;transform:scale(1)}}.stroke-model-controls{justify-content:space-between;align-items:center;gap:10px;margin-top:13px;display:flex}.stroke-secondary-action,.stroke-edit-actions button,.stroke-kana-nav button{color:#f8fafc;cursor:pointer;background:#ffffff0b;border:1px solid #e2e8f026;border-radius:16px;min-height:40px;padding:9px 13px;font-size:.76rem;font-weight:900;transition:all .15s}.stroke-secondary-action:hover,.stroke-edit-actions button:hover:not(:disabled),.stroke-kana-nav button:hover{background:#ffffff14;border-color:#cbd5e147}.stroke-speed-control,.stroke-assist-control{background:#02061799;border:1px solid #e2e8f01f;border-radius:999px;padding:3px;display:flex}.stroke-speed-control button,.stroke-assist-control button{color:#cbd5e1a8;cursor:pointer;background:0 0;border:0;border-radius:999px;padding:6px 9px;font-size:.69rem;font-weight:900}.stroke-speed-control button.active,.stroke-assist-control button.active{color:#020617;background:#f5f5f4}.stroke-animation-time{background:#ffffff0c;border-radius:999px;height:3px;margin:11px 2px 0;overflow:hidden}.stroke-animation-time span{border-radius:inherit;transform-origin:0;background:linear-gradient(90deg,#a8b9bf,#f8fafc);width:100%;height:100%;animation:linear forwards strokeTimeline;display:block}@keyframes strokeTimeline{0%{transform:scaleX(0)}to{transform:scaleX(1)}}.stroke-kana-nav{border-top:1px solid #ffffff10;justify-content:space-between;align-items:center;gap:8px;margin-top:13px;padding-top:13px;display:flex}.stroke-kana-nav span{color:#cbd5e194;font-size:.74rem;font-weight:850}.practice-stage{background:radial-gradient(circle at 50% 45%,#10b9810d,#020617bc 66%),linear-gradient(145deg,#101d2a,#08121c)}.stroke-practice-svg{touch-action:none;cursor:crosshair;-webkit-user-select:none;user-select:none;outline:0}.stroke-practice-svg:focus-visible{outline-offset:-4px;border-radius:18px;outline:2px solid #a8b9bf}.stroke-target-guide{fill:none;stroke:#7dd3fcbf;stroke-width:6.8px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:2 2;filter:drop-shadow(0 0 5px #38bdf866);animation:1s linear infinite strokeGuideFlow}.stroke-target-guide.pulse{stroke:#fcd34d;filter:drop-shadow(0 0 7px #f59e0b88)}@keyframes strokeGuideFlow{to{stroke-dashoffset:-4px}}.stroke-start-point circle:first-child{fill:#7dd3f52e;stroke:#7dd3fc;stroke-width:1.1px;animation:1.25s ease-out infinite strokeStartPulse}.stroke-start-point circle:last-child{fill:#f8fafc;stroke:none}@keyframes strokeStartPulse{0%{opacity:1;transform-origin:50%;transform:scale(.72)}75%,to{opacity:.18;transform-origin:50%;transform:scale(1.4)}}.stroke-user-accepted,.stroke-user-live{fill:none;stroke-linecap:round;stroke-linejoin:round}.stroke-user-accepted{stroke:#6ee7b7;stroke-width:5.3px;filter:drop-shadow(0 0 4px #10b9815c)}.stroke-user-live{stroke:#f8fafc;stroke-width:5.6px;filter:drop-shadow(0 0 4px #f8fafc47)}.stroke-practice-svg.is-wrong{animation:.28s ease-in-out strokeShake}@keyframes strokeShake{0%,to{transform:translate(0)}30%{transform:translate(-1.4px)}65%{transform:translate(1.4px)}}.stroke-success-mark circle{fill:#052e2bd9;stroke:#a7f3d0;stroke-width:1.5px;filter:drop-shadow(0 0 8px #10b98173)}.stroke-success-mark path{fill:none;stroke:#ecfdf5;stroke-width:3.5px;stroke-linecap:round;stroke-linejoin:round}.stroke-success-mark{animation:.36s cubic-bezier(.2,.85,.3,1.2) strokeSuccessIn}@keyframes strokeSuccessIn{0%{opacity:0;transform-origin:50%;transform:scale(.55)}to{opacity:1;transform-origin:50%;transform:scale(1)}}.stroke-practice-toolbar{justify-content:space-between;align-items:end;gap:12px;margin-top:13px;display:flex}.stroke-practice-toolbar>div:first-child{gap:6px;display:grid}.stroke-edit-actions{gap:7px;display:flex}.stroke-edit-actions button:disabled{opacity:.3;cursor:not-allowed}.stroke-feedback{background:#ffffff08;border:1px solid #e2e8f01f;border-radius:18px;align-items:center;gap:10px;min-height:54px;margin-top:13px;padding:11px 12px;transition:all .18s;display:flex}.stroke-feedback>span{color:#020617;background:#cbd5e1;border-radius:999px;flex:none;place-items:center;width:26px;height:26px;font-size:.78rem;font-weight:950;display:grid}.stroke-feedback p{color:#cbd5e1bd;margin:0;font-size:.81rem;font-weight:750;line-height:1.42}.stroke-feedback.correct{background:#10b98118;border-color:#a7f3d04a}.stroke-feedback.correct>span,.stroke-feedback.complete>span{background:#a7f3d0}.stroke-feedback.wrong{background:#dc262619;border-color:#fecaca4d}.stroke-feedback.wrong>span{background:#fecaca}.stroke-feedback.complete{background:linear-gradient(135deg,#10b9812e,#a8b9bf12);border-color:#a7f3d075;box-shadow:0 0 0 1px #a7f3d020}.stroke-feedback.complete p{color:#ecfdf5}.stroke-method-note{background:#a8b9bf0c;border:1px solid #a8b9bf29;border-radius:20px;gap:5px;margin-top:16px;padding:13px 15px;display:grid}.stroke-method-note strong{color:#f8fafc;font-size:.82rem}.stroke-method-note span{color:#cbd5e1a8;font-size:.79rem;line-height:1.5}.stroke-attribution{color:#cbd5e16e;text-align:center;margin:13px 0 0;font-size:.68rem;line-height:1.45}.stroke-attribution a{color:#d9e8eebf}@media (min-width:900px){.stroke-workspace{grid-template-columns:repeat(2,minmax(0,1fr))}.stroke-card{padding:18px}.stroke-stage{width:min(100%,390px)}}@media (max-width:700px){.stroke-lab-hero{align-items:stretch;display:grid}.stroke-hero-progress{width:100%;min-width:0}.stroke-selector-label{align-items:flex-start;display:grid}.stroke-workspace{grid-template-columns:1fr}.stroke-card{border-radius:24px}.stroke-practice-toolbar{align-items:stretch;display:grid}.stroke-edit-actions{justify-content:stretch}.stroke-edit-actions button{flex:1}.stroke-attribution{text-align:left}}@media (max-width:420px){.stroke-selector-box{border-radius:20px;padding:11px}.stroke-row-chip{flex-basis:68px}.stroke-kana-chip{flex-basis:66px}.stroke-card{padding:13px}.stroke-stage{border-radius:22px;padding:8px}.stroke-card-head em{font-size:.66rem}.stroke-model-controls{align-items:stretch;display:grid}.stroke-secondary-action{width:100%}.stroke-speed-control{justify-content:center}.stroke-speed-control button{flex:1}.stroke-kana-nav button{padding:8px 9px;font-size:.7rem}.stroke-kana-nav span{font-size:.68rem}.stroke-feedback{align-items:flex-start}}@media (prefers-reduced-motion:reduce){.stroke-number{opacity:1;animation:none}.stroke-animation-time span,.stroke-target-guide,.stroke-start-point circle:first-child,.stroke-success-mark,.stroke-practice-svg.is-wrong{animation:none}.stroke-row-chip:hover{transform:none}}.stroke-speed-control button,.stroke-edit-actions button{white-space:nowrap;overflow-wrap:normal}.stroke-speed-control button{min-width:38px}.stroke-edit-actions button{min-width:82px}.stroke-model-ghost{stroke:#d8e2e65c;stroke-width:5.8px}.stroke-model-svg.animation-idle .stroke-model-ghost{stroke:#e2e8f075}.stroke-demo-path{stroke:#fff;filter:drop-shadow(0 2px 4px #00000080)drop-shadow(0 0 6px #dce4e766)}@keyframes strokeDrawPixels{0%{opacity:.22;stroke-dashoffset:var(--stroke-length)}15%{opacity:1}to{opacity:1;stroke-dashoffset:0}}.stroke-number.idle{opacity:0}.stroke-number.complete{opacity:1}.stroke-model-instruction{color:#cbd5e1b8;text-align:center;min-height:38px;margin:10px auto 0;font-size:.79rem;font-weight:750;line-height:1.45}.stroke-animation-start{color:#020617;cursor:pointer;background:linear-gradient(145deg,#fff,#dce4e7);border:1px solid #f8fafc;border-radius:16px;min-height:44px;padding:10px 15px;font-size:.79rem;font-weight:950;transition:all .15s;box-shadow:0 12px 24px #00000038}.stroke-animation-start:hover:not(:disabled){background:#fff;transform:translateY(-1px);box-shadow:0 16px 28px #00000047}.stroke-animation-start.playing{color:#d1fae5;background:#10b9811c;border-color:#6ee7b75c}.stroke-animation-start:disabled{cursor:default;opacity:.84}.stroke-animation-time.idle span{transform:scaleX(0)}.stroke-animation-time.complete span{transform:scaleX(1)}.stroke-animation-time.playing span{transform-origin:0}.stroke-model-animation.playing .stroke-demo-path{will-change:stroke-dashoffset}.stroke-model-animation.complete .stroke-demo-path{opacity:1}.stroke-unified-card{padding:18px}.stroke-mode-switch{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:14px;display:grid}.stroke-mode-switch button{color:#cbd5e1b8;text-align:left;cursor:pointer;background:#ffffff08;border:1px solid #e2e8f01f;border-radius:18px;min-width:0;padding:11px 12px;transition:all .16s;display:grid}.stroke-mode-switch button:hover{background:#ffffff10;border-color:#cbd5e13d}.stroke-mode-switch button.active{color:#020617;background:linear-gradient(145deg,#fff,#dce4e7);border-color:#fff;box-shadow:0 12px 26px #00000038}.stroke-mode-switch strong{font-size:.83rem}.stroke-mode-switch small{opacity:.72;margin-top:3px;font-size:.67rem;line-height:1.3}.stroke-selector-inline{background:#ffffff06;border:1px solid #ffffff10;border-radius:22px;margin-bottom:15px;padding:12px}.stroke-dictation-privacy{border-top:1px solid #ffffff10;align-items:center;gap:10px;margin-top:0;padding-top:11px;display:flex}.stroke-dictation-privacy>span{color:#020617;background:#dce4e7;border-radius:999px;flex:none;place-items:center;width:32px;height:32px;font-size:1rem;font-weight:950;display:grid}.stroke-dictation-privacy>div{min-width:0;display:grid}.stroke-dictation-privacy strong{color:#f8fafc;font-size:.8rem}.stroke-dictation-privacy small{color:#cbd5e18f;margin-top:2px;font-size:.72rem;line-height:1.4}.stroke-unified-head{border-top:1px solid #ffffff10;margin:0;padding:14px 2px 13px}.stroke-unified-layout{gap:16px;display:grid}.stroke-canvas-column{min-width:0}.stroke-session-panel{background:linear-gradient(145deg,#ffffff09,#02061738);border:1px solid #e2e8f01c;border-radius:22px;align-content:start;gap:13px;min-width:0;padding:14px;display:grid}.stroke-session-copy,.stroke-dictation-control{display:grid}.stroke-session-copy>span,.stroke-dictation-control>span,.stroke-setting-block>span{color:#cbd5e17d;letter-spacing:.16em;text-transform:uppercase;font-size:.65rem;font-weight:950}.stroke-session-copy>strong,.stroke-dictation-control>strong{color:#f8fafc;margin-top:4px;font-size:1rem}.stroke-session-copy p,.stroke-dictation-control p{color:#cbd5e1a8;margin:6px 0 0;font-size:.79rem;line-height:1.5}.stroke-session-panel .stroke-animation-start,.stroke-session-panel .stroke-audio-action{width:100%}.stroke-setting-block{gap:7px;display:grid}.stroke-setting-block>small{color:#cbd5e17d;font-size:.7rem;line-height:1.42}.stroke-guide-control{background:#02061799;border:1px solid #e2e8f01f;border-radius:16px;grid-template-columns:1fr 1fr;padding:4px;display:grid}.stroke-guide-control button{color:#cbd5e1a8;cursor:pointer;background:0 0;border:0;border-radius:12px;min-height:38px;padding:8px 10px;font-size:.75rem;font-weight:900}.stroke-guide-control button.active{color:#020617;background:#f5f5f4;box-shadow:0 8px 16px #00000030}.stroke-audio-action{color:#020617;cursor:pointer;background:linear-gradient(145deg,#fff,#dce4e7);border:1px solid #f8fafc;border-radius:16px;min-height:48px;margin-top:10px;padding:10px 14px;font-size:.82rem;font-weight:950;box-shadow:0 12px 24px #00000038}.stroke-audio-action:disabled{cursor:not-allowed;opacity:.45}.stroke-ambiguity-note{background:#f59e0b12;border:1px solid #fbbf2440;border-radius:17px;padding:11px 12px}.stroke-ambiguity-note strong{color:#fef3c7;font-size:.78rem}.stroke-ambiguity-note p{color:#fde68ab8;margin:4px 0 0;font-size:.73rem;line-height:1.45}.stroke-dictation-nav{border-top:1px solid #ffffff10;justify-content:space-between;align-items:center;gap:10px;padding-top:12px;display:flex}.stroke-dictation-nav span{color:#cbd5e194;font-size:.74rem;font-weight:850}.stroke-dictation-nav button{color:#f8fafc;cursor:pointer;background:#ffffff0b;border:1px solid #e2e8f026;border-radius:14px;min-height:38px;padding:8px 12px;font-size:.73rem;font-weight:900}.stroke-dictation-nav button:disabled{cursor:not-allowed;opacity:.35}.stroke-dictation-overlay{z-index:5;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);text-align:center;background:#020617a8;place-content:center;place-items:center;gap:6px;display:grid;position:absolute;top:0;bottom:0;left:0;right:0}.stroke-dictation-overlay>span{color:#020617;background:#f5f5f4;border-radius:999px;place-items:center;width:42px;height:42px;font-size:1.2rem;font-weight:950;display:grid}.stroke-dictation-overlay strong{color:#f8fafc;font-size:.92rem}.stroke-dictation-overlay small{color:#cbd5e19e;max-width:240px;font-size:.74rem;line-height:1.42}.stroke-stroke-meter{grid-template-columns:repeat(var(--stroke-count,4),1fr);gap:5px;width:min(100%,410px);margin:10px auto 0;display:flex}.stroke-stroke-meter span{background:#ffffff10;border-radius:999px;flex:1;height:5px}.stroke-stroke-meter span.current{background:#7dd3fc66;box-shadow:0 0 8px #38bdf84d}.stroke-stroke-meter span.done{background:#6ee7b7;box-shadow:0 0 8px #10b9814d}.stroke-session-panel .stroke-edit-actions{grid-template-columns:1fr 1fr;display:grid}.stroke-session-panel .stroke-edit-actions button{width:100%}.stroke-session-panel .stroke-feedback{margin-top:0}.stroke-unified-card .stroke-stage{width:min(100%,440px)}.stroke-unified-card .stroke-kana-nav{margin-top:auto}.stroke-practice-svg.guide-with .stroke-practice-ghost{stroke:#cbd5e12c}.stroke-practice-svg.guide-with .stroke-target-guide{stroke:#7dd3fca8}.stroke-practice-svg.guide-with .stroke-start-point{opacity:1}@media (min-width:860px){.stroke-unified-layout{grid-template-columns:minmax(0,1.08fr) minmax(280px,.72fr);align-items:stretch}.stroke-session-panel{min-height:100%}}@media (max-width:620px){.stroke-unified-card{border-radius:24px;padding:13px}.stroke-mode-switch{gap:6px}.stroke-mode-switch button{border-radius:15px;padding:9px}.stroke-mode-switch small{display:none}.stroke-mode-switch strong{text-align:center;font-size:.75rem}.stroke-selector-inline{border-radius:18px;padding:10px}.stroke-unified-head{padding-inline-start:1px;padding-inline-end:1px}.stroke-session-panel{border-radius:19px;padding:12px}.stroke-dictation-nav button{min-width:128px}.stroke-dictation-privacy{align-items:flex-start}}.stroke-row-scroll-shell{grid-template-columns:40px minmax(0,1fr) 40px;align-items:center;gap:7px;display:grid;position:relative}.stroke-row-scroll-shell .stroke-row-selector{z-index:2;padding-bottom:0}.stroke-row-arrow{z-index:4;color:#f8fafc;cursor:pointer;background:#020617e8;border:1px solid #e2e8f02e;border-radius:999px;place-items:center;width:40px;height:40px;padding:0;font-size:1.35rem;font-weight:950;line-height:1;transition:all .15s;display:grid;box-shadow:0 10px 22px #00000052}.stroke-row-arrow:hover{color:#020617;background:#f5f5f4;border-color:#fff;transform:scale(1.04)}.stroke-row-fade{z-index:3;pointer-events:none;width:34px;position:absolute;top:0;bottom:0}.stroke-row-fade.left{background:linear-gradient(90deg,#111827,#111827d9,#0000);left:47px}.stroke-row-fade.right{background:linear-gradient(270deg,#111827,#111827d9,#0000);right:47px}.stroke-session-panel.mode-observe{align-content:center}.stroke-session-panel.mode-observe .stroke-animation-start{margin:auto 0}.stroke-session-panel.mode-observe .stroke-kana-nav{margin-top:10px}@media (max-width:620px){.stroke-row-scroll-shell{grid-template-columns:36px minmax(0,1fr) 36px;gap:5px}.stroke-row-arrow{width:36px;height:36px;font-size:1.2rem}.stroke-row-fade.left{left:41px}.stroke-row-fade.right{right:41px}}.stroke-hero-progress>div{position:relative}.stroke-hero-progress span.correct{z-index:2;position:absolute;top:0;bottom:0;left:0;right:auto}.stroke-hero-progress i.assisted{z-index:1;background:linear-gradient(90deg,#fbbf24,#f59e0b);height:100%;transition:width .3s,left .3s;display:block;position:absolute;top:0;box-shadow:0 0 12px #f59e0b55}.stroke-feedback.assisted{background:#f59e0b17;border-color:#fbbf2452}.stroke-feedback.assisted>span{color:#451a03;background:#fcd34d}.stroke-feedback.assisted p{color:#fef3c7}.stroke-feedback.missed{background:#f9731614;border-color:#fb923c47}.stroke-feedback.missed>span{color:#431407;background:#fdba74}.stroke-feedback.missed p{color:#ffedd5}.stroke-practice-svg.outcome-assisted .stroke-success-mark circle{fill:#451a03d9;stroke:#fcd34d}.stroke-practice-svg.outcome-assisted .stroke-success-mark path{stroke:#fef3c7}.stroke-practice-svg.outcome-missed .stroke-success-mark circle{fill:#431407d9;stroke:#fdba74}.stroke-practice-svg.outcome-missed .stroke-success-mark path{stroke:#ffedd5}.stroke-attribution{color:#9eabb8;font-size:.75rem}.stroke-attribution a{color:#dce7ee;align-items:center;min-height:24px;padding:3px 2px;display:inline-flex}.stroke-animation-speed{gap:8px;display:grid}.stroke-animation-speed>span{color:#aeb8c4;letter-spacing:.15em;text-transform:uppercase;font-size:.67rem;font-weight:950}.stroke-animation-speed .stroke-speed-control{border-radius:16px;grid-template-columns:repeat(3,minmax(0,1fr));padding:4px;display:grid}.stroke-animation-speed .stroke-speed-control button{border-radius:12px;min-width:0;min-height:40px;padding:8px 9px;font-size:.73rem}.stroke-animation-speed .stroke-speed-control button:disabled{cursor:default;opacity:.55}.stroke-animation-speed .stroke-speed-control button.active{box-shadow:0 8px 16px #00000030}.stroke-model-animation.playing .stroke-demo-path{filter:none;animation-timing-function:linear}.stroke-row-scroll-shell{grid-template-columns:minmax(0,1fr) 40px}.stroke-row-fade.right{right:47px}@media (max-width:620px){.stroke-row-scroll-shell{grid-template-columns:minmax(0,1fr) 40px;gap:6px}.stroke-row-arrow{width:40px;height:40px}.stroke-row-fade.right{right:46px}}@media not (min-width:768px){.stroke-card{box-shadow:0 12px 28px #00000024}.stroke-stage{contain:paint;isolation:isolate;box-shadow:inset 0 0 0 1px #ffffff05,0 10px 22px #00000026}.stroke-lab-hero{box-shadow:inset 0 1px #ffffff08,0 10px 22px #00000024}.stroke-animation-start,.stroke-mode-switch button.active,.stroke-row-chip.active{box-shadow:0 7px 16px #0000002b}}
/*$vite$:1*/