/* Hallmark · macrostructure: Split Studio · theme: Coral learning studio · nav: N9 · footer: Ft1
 * Hallmark · pre-emit critique: P4 H4 E4 S5 R4 V4
 * User-supplied mascot; localized script fonts; verified mobile + contrast. */
@import url('/tokens.css');
@import url('/static/fonts.css');
*{box-sizing:border-box}html,body{overflow-x:clip}html{scroll-padding-top:6rem}body{margin:0;background:var(--color-paper);color:var(--color-ink);font:var(--text-body)/1.65 var(--font-body);-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--font-display);font-style:normal;line-height:1.3;min-width:0;overflow-wrap:anywhere}h1{font-size:var(--text-display);font-weight:700;letter-spacing:-.045em}h2{font-size:var(--text-xl);font-weight:700;letter-spacing:-.035em}h3{font-size:var(--text-lg);font-weight:700}p{color:var(--color-muted)}a{color:inherit;text-decoration:none}a:hover{text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button,a,summary,input,select,textarea{-webkit-tap-highlight-color:var(--color-transparent)}button,summary{cursor:pointer}button{border:0}button:disabled{cursor:not-allowed;opacity:.6}a,button,input,select,textarea,summary{outline-offset:4px}:focus-visible{outline:3px solid var(--color-focus)}svg{width:22px;height:22px;stroke:currentColor;stroke-width:1.65;fill:none;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}img{max-width:100%;height:auto;display:block}audio{width:100%;max-width:34rem;margin-block:var(--space-md)}small,.meta{font-size:var(--text-sm);color:var(--color-muted)}.icon-defs{position:absolute;width:0;height:0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:clip;clip-path:inset(50%);white-space:nowrap;border:0}.skip-link{position:absolute;top:-5rem;left:1rem;z-index:5;background:var(--color-ink);color:var(--color-surface);padding:1rem}.skip-link:focus{top:1rem}.accent{color:var(--color-accent)}
.topbar{min-height:80px;display:flex;align-items:center;justify-content:space-between;gap:var(--space-md);padding:var(--space-md);border-bottom:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink)}.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;font:700 1.05rem/1.15 var(--font-display);letter-spacing:-.04em}.brand-mark{display:grid;place-items:center;width:40px;height:42px;background:var(--color-accent);color:var(--color-accent-ink);border-radius:12px 12px 12px 3px;font:600 29px var(--font-japanese)}.brand-second{display:block}.brand-dot{color:var(--color-accent)}.topnav{display:none;gap:var(--space-xl);font-size:var(--text-sm);font-weight:600}.topnav a,.login-link{padding-block:12px;white-space:nowrap}.header-actions{display:flex;align-items:center;gap:var(--space-md)}.header-actions select{width:100px;padding:8px;border:1px solid var(--color-rule);background:var(--color-surface);min-height:44px;border-radius:var(--radius-sm);font-size:var(--text-sm)}.header-actions .btn,.login-link{display:none}.avatar{width:42px;height:44px;display:grid;place-items:center;border-radius:50%;background:var(--color-accent-soft);color:var(--color-accent);font-weight:700}.app-layout{max-width:1600px;margin:auto}.sidebar{display:none}.mobile-menu{border-bottom:1px solid var(--color-rule);padding:0 var(--space-md);background:var(--color-surface);color:var(--color-ink)}.mobile-menu summary{display:flex;align-items:center;justify-content:space-between;min-height:48px;list-style:none;font-weight:600}.mobile-menu summary::-webkit-details-marker{display:none}.mobile-menu nav{padding-bottom:var(--space-md)}.nav-link{min-height:48px;display:flex;align-items:center;gap:12px;padding:10px 14px;margin-bottom:6px;border-radius:var(--radius-sm);font-size:var(--text-sm);font-weight:500;white-space:nowrap;color:var(--color-muted)}.nav-link.selected{background:var(--color-accent-soft);color:var(--color-accent);font-weight:700}.nav-divider{display:block;border-top:1px solid var(--color-rule);margin:24px 12px}.sidebar-note{margin:64px 14px 24px}.sidebar-note>span{font:500 24px var(--font-japanese);color:var(--color-accent)}.sidebar-note p{font-size:var(--text-sm);margin-top:10px;max-width:150px}main{min-width:0;padding:var(--space-lg) var(--space-md) 0;max-width:1280px;margin:auto}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:11px 22px;border:1px solid var(--color-transparent);border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-accent-ink);font-size:var(--text-sm);font-weight:600;white-space:nowrap;transition:transform var(--dur-micro) var(--ease-out);max-width:100%}.btn:active,.sound-button:active,.icon-button:active{transform:translateY(1px)}.btn.secondary{background:var(--color-surface);color:var(--color-ink);border-color:var(--color-rule)}.btn.small{padding-inline:16px}.btn.success{background:var(--color-success-soft);color:var(--color-success)}.btn[aria-busy=true]{opacity:.6;cursor:wait}.btn.full{width:100%}.text-link,.text-button{font-weight:600;font-size:var(--text-sm);color:var(--color-accent);white-space:nowrap;display:inline-flex;align-items:center;min-height:44px;background:var(--color-transparent);padding:0}.inline-actions{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-md)}.welcome{display:grid;gap:var(--space-md);padding:12px 0 32px}.welcome-copy h1{white-space:pre-line}.welcome-copy p{font-size:var(--text-body);max-width:480px;margin:20px 0 24px}.welcome-art{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:290px;background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-lg)}.hello{position:absolute;top:16px;right:16px;padding:5px 12px;border:1px solid var(--color-rule);border-radius:12px 12px 12px 0;background:var(--color-surface);color:var(--color-ink);font-size:14px;transform:rotate(5deg)}.mascot{background-image:url('/static/mascot.png');background-repeat:no-repeat;flex-shrink:0;mix-blend-mode:multiply}.mascot-front{width:220px;aspect-ratio:336/402;background-size:609.524% auto;background-position:1.753% 32.667%}.mascot-happy{width:210px;aspect-ratio:305/315;background-size:671.475% auto;background-position:42.742% 87.216%}.mascot-calm{width:160px;aspect-ratio:300/330;background-size:682.667% auto;background-position:77.517% 88.808%}.art-caption{font:400 12px var(--font-japanese);color:var(--color-muted);margin-bottom:18px}.section-head{display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:24px}.section-head p{font-size:var(--text-sm);margin-top:8px}.topics{padding-block:16px 32px}.topic-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:12px}.topic-card{position:relative;display:flex;align-items:center;gap:20px;border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-md);padding:22px 18px;min-width:0}.topic-card>div{min-width:0}.topic-glyph{font:500 40px/1 var(--font-japanese);color:var(--color-accent);width:52px;text-align:center;flex-shrink:0}.topic-card p{font-size:14px;line-height:1.55;margin:6px 10px 8px 0}.topic-card .meta{font-size:12px}.topic-arrow{position:absolute;top:16px;right:14px;color:var(--color-muted)}.first-step{display:grid;grid-template-columns:minmax(0,1fr);background:var(--color-accent-soft);color:var(--color-ink);border-radius:var(--radius-lg);padding:24px;gap:24px;margin-block:16px 40px}.first-step h2{font-size:var(--text-sm);font-weight:500;letter-spacing:0;margin-bottom:12px;color:var(--color-accent)}.first-step h3{font-size:26px;letter-spacing:-.03em}.first-step p{margin:10px 0 20px;font-size:var(--text-sm)}.kana-preview{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-rule);border-radius:var(--radius-md);padding:20px;min-height:200px}.kana-preview>span{font:500 80px/1.15 var(--font-japanese);margin-bottom:12px}.kana-preview small{margin-top:8px;font-size:12px;text-align:center}.sound-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:44px;padding:7px 18px;background:var(--color-paper-2);color:var(--color-accent);border-radius:var(--radius-pill);font-weight:600}.study-strip{display:flex;align-items:flex-start;flex-wrap:wrap;gap:20px;padding:16px 0 36px}.study-strip>svg{color:var(--color-accent);margin-top:5px}.study-strip>div{flex:1;min-width:180px}.study-strip h2{font-size:20px}.study-strip p{font-size:14px;max-width:600px;margin-top:8px}.footer{display:flex;align-items:center;flex-wrap:wrap;gap:12px 24px;border-top:1px solid var(--color-rule);padding-block:24px 32px;margin-top:48px;color:var(--color-muted);font-size:12px}.footer>span:first-child{font-weight:600;color:var(--color-ink)}.footer>span:first-child span{display:inline-block;margin-left:8px;font-weight:400}.footer a{white-space:nowrap;min-height:44px;display:inline-flex;align-items:center}.page-heading{margin:12px 0 32px}.page-heading h1{font-size:clamp(1.8rem,3vw,2.6rem)}.page-heading p{margin-top:12px;max-width:680px}.search{display:flex;align-items:center;gap:12px;padding:8px 8px 8px 16px;border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-muted);border-radius:var(--radius-md);margin-bottom:24px}.search input{border:0;min-width:0;flex:1;padding:8px;background:var(--color-transparent)}.search svg{display:none}.search .btn{padding-inline:16px}.chips,.admin-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-block:16px 28px}.chip{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;min-height:44px;border:1px solid var(--color-rule);border-radius:var(--radius-pill);font-size:var(--text-sm);white-space:nowrap;background:var(--color-surface);color:var(--color-muted)}.chip.active{background:var(--color-ink);color:var(--color-surface);border-color:var(--color-ink)}.lesson-list{border-top:1px solid var(--color-rule)}.lesson-row{display:flex;align-items:center;gap:20px;flex-wrap:wrap;padding:24px 0;border-bottom:1px solid var(--color-rule)}.lesson-symbol{display:grid;place-items:center;background:var(--color-paper-2);color:var(--color-accent);font:500 40px var(--font-japanese);width:76px;height:84px;border-radius:var(--radius-md);flex-shrink:0}.lesson-row-copy{flex:1;min-width:160px}.lesson-row h2{font-size:20px;margin:6px 0}.lesson-row p{font-size:14px;margin-bottom:8px}.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--color-success);background:var(--color-success-soft);padding:3px 10px;border-radius:var(--radius-pill)}.badge.muted{background:var(--color-paper-2);color:var(--color-muted)}.empty{padding:32px 0}.empty h2{font-size:20px}.empty a{display:inline-flex;min-height:44px;align-items:center;color:var(--color-accent);margin-top:12px}.breadcrumb{display:flex;flex-wrap:wrap;gap:12px;font-size:var(--text-sm);color:var(--color-muted);margin-bottom:20px}.breadcrumb a{min-height:44px;display:inline-flex;align-items:center;white-space:nowrap}.breadcrumb>span{display:flex;align-items:center}.prose{white-space:pre-line;line-height:1.9;overflow-wrap:anywhere}.lesson-body{max-width:760px;margin-bottom:32px}.source-note{font-size:var(--text-sm);padding:12px;background:var(--color-paper-2);color:var(--color-muted);border-radius:var(--radius-sm);margin:12px 0 24px;display:block}.lesson-image{object-fit:contain;max-height:500px;border-radius:var(--radius-md);margin-bottom:24px}.locked-panel{padding:40px 24px;text-align:center;background:var(--color-paper-2);color:var(--color-ink);border-radius:var(--radius-lg)}.locked-panel>svg{width:36px;height:36px;color:var(--color-accent);margin-bottom:20px}.locked-panel p{margin:16px auto 24px;max-width:500px}.character-section{margin-block:40px}.character-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:16px;margin-top:24px}.character{border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-md);padding:20px;min-width:0}.character-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.character-top>span{font:500 64px/1.2 var(--font-japanese)}.icon-button{min-width:44px;min-height:44px;display:grid;place-items:center;background:var(--color-accent-soft);color:var(--color-accent);border-radius:50%}.character p{font-size:14px}.character>small{display:block;margin-top:8px;font-size:12px}.character summary{min-height:44px;display:flex;align-items:center;font-size:14px;color:var(--color-accent)}.character details p{white-space:pre-line}.writing-panel{display:grid;gap:24px;background:var(--color-paper-2);color:var(--color-ink);padding:24px;border-radius:var(--radius-lg);align-items:center}.writing-panel p{margin:16px 0 24px}.writing-panel canvas{touch-action:none;width:100%;max-width:320px;aspect-ratio:1;background:var(--color-surface);border:1px solid var(--color-rule);border-radius:var(--radius-md);justify-self:center;cursor:crosshair}.lesson-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:32px}.auth-layout{display:grid;gap:24px;padding-block:16px}.auth-story{display:flex;flex-direction:column;align-items:flex-start}.auth-story>p{margin:16px 0;max-width:350px}.auth-story .mascot{display:none}.big-jp{font:500 24px var(--font-japanese);color:var(--color-accent);margin-bottom:24px}.auth-form{background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-rule);border-radius:var(--radius-lg);padding:24px;display:flex;flex-direction:column;gap:20px;align-self:start}.auth-form h2{margin-bottom:4px}.auth-switch{font-size:14px}.auth-switch a{color:var(--color-accent);font-weight:600;display:inline-flex;min-height:44px;align-items:center;white-space:nowrap}label{display:flex;flex-direction:column;gap:8px;font-size:var(--text-sm);font-weight:500}input:not([type=radio]):not([type=checkbox]),select,textarea{width:100%;min-width:0;min-height:46px;border:1px solid var(--color-rule);border-radius:var(--radius-sm);padding:10px 12px;background:var(--color-surface);color:var(--color-ink)}input::placeholder,textarea::placeholder{color:var(--color-muted)}input:disabled,textarea:disabled,select:disabled{opacity:.55;cursor:not-allowed}input[aria-invalid=true],textarea[aria-invalid=true]{border-color:var(--color-error)}textarea{resize:vertical;min-height:96px;line-height:1.6}.notice,.alert{padding:16px 20px;border-radius:var(--radius-sm);margin-bottom:24px;font-size:var(--text-sm);overflow-wrap:anywhere}.notice{background:var(--color-success-soft);color:var(--color-success)}.alert{background:var(--color-accent-soft);color:var(--color-error)}.plan-list{display:grid;gap:20px}.plan{border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-lg);padding:28px;display:flex;flex-direction:column;align-items:flex-start;gap:20px}.plan>p{font-size:14px}.price{font:700 32px var(--font-display);font-variant-numeric:tabular-nums}.price small{font-size:14px;font-weight:400}.account-welcome{display:flex;align-items:center;gap:20px;justify-content:space-between}.account-welcome h1{font-size:clamp(1.8rem,3vw,2.6rem)}.account-welcome p{margin-top:16px}.account-welcome .mascot{display:none}.account-grid{display:grid;gap:20px;margin:32px 0}.panel{background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-rule);border-radius:var(--radius-md);padding:24px}.panel h2{margin-bottom:20px}.panel .btn{margin-top:20px}.panel li{margin-bottom:12px}.panel ol{padding-left:20px}.stat-number{font:600 48px var(--font-display)}.history{margin-block:40px}.history-row{display:flex;gap:20px;flex-wrap:wrap;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--color-rule)}.history-row small{display:block;margin-top:8px}.history-row>span{font-variant-numeric:tabular-nums}.quiz-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;flex-wrap:wrap;margin:16px 0 32px}.quiz-heading h1{font-size:30px}.timer{padding:10px 16px;border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink);border-radius:var(--radius-sm);font-size:14px;white-space:nowrap}.timer strong{font-variant-numeric:tabular-nums;margin-left:12px;color:var(--color-accent)}.question{border:0;padding:24px 0 32px;margin:0;min-width:0}.question legend{font-weight:600;font-size:18px;line-height:1.7;padding:0;overflow-wrap:anywhere}.question legend span{color:var(--color-accent);margin-right:8px}.choice{display:flex;flex-direction:row;align-items:center;gap:16px;min-height:54px;padding:12px 18px;border:1px solid var(--color-rule);border-radius:var(--radius-sm);margin:10px 0;background:var(--color-surface);color:var(--color-ink);cursor:pointer;font-size:16px}.choice:has(input:checked){background:var(--color-accent-soft);color:var(--color-ink);border-color:var(--color-accent)}input[type=radio],input[type=checkbox]{accent-color:var(--color-accent);width:20px;height:20px;flex-shrink:0}.question-image{object-fit:contain;max-height:400px;margin:16px 0}.result-heading{display:flex;align-items:center;gap:24px;justify-content:space-between;padding:24px 0 40px}.result-heading .mascot{display:none}.result-heading h1{font-size:32px}.result-heading p{margin-block:12px}.result-score{font:600 64px var(--font-display);color:var(--color-accent)}.result-score span{font-size:28px;color:var(--color-muted)}.review-item{border-bottom:1px solid var(--color-rule);padding:24px 0}.review-item p{margin-top:12px}.correct-answer{color:var(--color-success);font-weight:500}.admin-tabs{padding-bottom:20px;border-bottom:1px solid var(--color-rule)}.admin-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:32px}.admin-stats>div{display:flex;flex-direction:column;gap:8px}.admin-stats strong{font:600 40px var(--font-display);font-variant-numeric:tabular-nums}.admin-stats span{font-size:14px;color:var(--color-muted)}.admin-records article{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;padding:24px 0;border-bottom:1px solid var(--color-rule)}.admin-records article>div{min-width:0;overflow-wrap:anywhere}.admin-records p{font-size:14px;margin-top:8px}.editor{display:flex;flex-direction:column;gap:24px;max-width:780px;margin-top:24px}.editor fieldset{border:1px solid var(--color-rule);border-radius:var(--radius-sm);padding:20px;min-width:0}.editor legend{font-weight:600;padding-inline:8px}.check-label{flex-direction:row;align-items:center;gap:12px;min-height:44px}.editor>button{align-self:flex-start}.form-grid{display:grid;gap:20px}.membership-form{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}.membership-form label{flex:1;min-width:140px}.audio-status{position:fixed;bottom:20px;left:20px;right:20px;max-width:500px;background:var(--color-ink);color:var(--color-surface);padding:16px 20px;border-radius:var(--radius-md);z-index:4;font-size:14px}.audio-status:empty{display:none}
@media(hover:hover){.btn:hover{background:var(--color-accent-hover);color:var(--color-accent-ink)}.btn.secondary:hover{background:var(--color-paper-2);color:var(--color-ink)}.topic-card:hover{border-color:var(--color-accent)}.nav-link:hover{background:var(--color-paper-2);color:var(--color-accent)}.text-link:hover,.topnav a:hover,.lesson-row h2 a:hover{color:var(--color-accent);text-decoration:underline;text-underline-offset:4px}input:hover,textarea:hover,select:hover{background:var(--color-paper)}.chip:hover{border-color:var(--color-accent)}.sound-button:hover,.icon-button:hover{background:var(--color-paper-3);color:var(--color-accent)}}
@media(min-width:26rem){.character-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.search svg{display:block}}
@media(min-width:40rem){.topbar{padding-inline:24px}.brand-second{display:inline;margin-left:4px}.header-actions .btn{display:inline-flex}.header-actions select{width:120px}main{padding:32px 28px 0}.welcome{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);align-items:center;gap:24px;padding-bottom:40px}.welcome-art{min-height:310px}.mascot-front{width:225px;max-width:100%}.section-head{flex-direction:row;align-items:flex-end}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card:last-child:nth-child(odd){grid-column:1/-1}.topic-card:last-child:nth-child(odd)>div{max-width:75%}.first-step{grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);align-items:center;padding:32px}.first-step h3{font-size:28px}.writing-panel{grid-template-columns:minmax(0,1fr) minmax(0,1fr);padding:32px}.auth-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}.auth-story .mascot{display:block}.auth-form{padding:32px}.plan-list,.account-grid,.form-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.account-welcome .mascot,.result-heading .mascot{display:block}.footer>span:nth-child(2){margin-left:auto}.admin-stats{grid-template-columns:repeat(4,minmax(0,1fr))}.lesson-row{flex-wrap:nowrap}.lesson-row>.btn,.lesson-row>form{margin-left:auto;flex-shrink:0}}
@media(min-width:64rem){.topbar{padding:18px 32px;min-height:84px}.topnav{display:flex}.login-link{display:block}.app-layout{display:grid;grid-template-columns:216px minmax(0,1fr)}.sidebar{display:flex;flex-direction:column;padding:32px 16px;border-right:1px solid var(--color-rule);min-height:calc(100dvh - 84px);background:var(--color-surface);color:var(--color-ink)}.mobile-menu{display:none}main{width:100%;padding:36px 40px 0}.welcome{gap:32px}.welcome-art{min-height:330px}.mascot-front{width:240px}.topic-card{padding:24px;gap:24px}.topic-glyph{font-size:48px;width:56px}.topics{padding-bottom:40px}.first-step{padding:36px 40px}.character-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.auth-layout{min-height:520px}.header-actions{gap:20px}.footer{margin-top:64px}}
@media(min-width:85rem){main{padding-inline:56px}.welcome{grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}.welcome-copy p{font-size:17px}.welcome-art{min-height:350px}.topic-grid{gap:16px}.first-step{grid-template-columns:minmax(0,2fr) minmax(0,1fr)}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.btn:active,.sound-button:active,.icon-button:active{transform:none}}

/* Hallmark · Split Studio — shared shell and responsive learning surface.
 * Existing page styles remain above; this layer updates the home and app chrome. */
.topbar{position:sticky;top:0;z-index:var(--z-header);min-height:var(--header-height);height:var(--header-height);padding:var(--space-md) 12px;gap:8px;box-shadow:0 1px 0 var(--color-rule)}
.brand{font-size:13px;gap:8px;letter-spacing:-.035em;flex-shrink:0}
.brand-mark{width:32px;height:36px;font-size:25px;border-radius:10px 10px 10px 3px}
.brand-second{display:block;margin-left:0}
.header-actions{gap:8px;min-width:0;flex-shrink:0}
.header-actions select{width:80px;height:40px;min-height:44px;padding:8px 4px;border-color:var(--color-transparent);background:var(--color-paper);color:var(--color-ink);font-size:12px}
.header-actions .btn{display:none}
.login-link{display:flex;align-items:center;justify-content:center;min-height:44px;min-width:36px;padding:0;color:var(--color-ink)}
.login-link span{display:none}
.avatar{width:36px;height:40px;min-height:44px;font-size:14px}
.menu-toggle{display:grid;place-items:center;min-height:44px;width:36px;background:var(--color-transparent);color:var(--color-ink);border-radius:var(--radius-sm)}
.menu-toggle:active{background:var(--color-paper-3)}
.app-layout{display:block;max-width:1664px;margin:auto}
.sidebar{display:none}
main{padding:var(--space-lg) var(--space-md) 100px;min-width:0;max-width:1360px;width:100%;margin:auto}
.btn{border-radius:12px;min-height:48px;font-weight:700;line-height:1.4;padding:12px 20px;box-shadow:0 3px 0 var(--color-accent-edge);transition:transform var(--dur-micro) var(--ease-out)}
.btn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--color-accent-edge)}
.btn.secondary{box-shadow:0 2px 0 var(--color-rule)}
.btn.small{min-height:44px;padding-inline:16px}
.btn.success{box-shadow:none}
.btn:disabled,.btn[aria-busy=true]{transform:none;box-shadow:none}
.btn svg{width:18px;height:18px}
.mobile-drawer{position:fixed;inset:0 0 0 auto;width:min(360px,100%);max-width:100%;height:100dvh;max-height:100dvh;margin:0;padding:24px 20px;border:0;background:var(--color-paper);color:var(--color-ink);overflow-y:auto;overscroll-behavior:contain;z-index:var(--z-dialog)}
.mobile-drawer::backdrop{background:color-mix(in oklch,var(--color-sidebar) 65%,var(--color-transparent))}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:var(--space-xl)}
.drawer-head h2{font-size:var(--text-lg)}
.drawer-head .brand-mark{width:40px;height:44px}
.drawer-auth{display:flex;flex-direction:column;gap:16px;margin-top:var(--space-xl)}
.mobile-drawer .nav-link{min-height:52px;font-size:16px;padding:12px 16px;margin-bottom:8px}
.mobile-drawer .nav-divider{margin:24px 0}
.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:var(--z-navigation);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));min-height:72px;padding:8px 8px max(8px,env(safe-area-inset-bottom));background:var(--color-surface);color:var(--color-muted);border-top:1px solid var(--color-rule);box-shadow:var(--shadow-soft)}
.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:52px;min-width:0;border-radius:12px;font-size:12px;font-weight:500;white-space:nowrap;line-height:1.4}
.bottom-nav a[aria-current=page]{background:var(--color-accent-soft);color:var(--color-accent);font-weight:700}
.bottom-nav a:active{background:var(--color-paper-2)}
.bottom-nav svg{width:22px;height:22px}
.audio-status{bottom:88px}
.audio-loading svg{animation:audio-pulse .8s ease-in-out infinite alternate}
.is-playing{color:var(--color-accent)}
@keyframes audio-pulse{to{opacity:.35}}
@media(prefers-reduced-motion:reduce){.audio-loading svg{animation:none;opacity:.5}}
.studio-welcome{position:relative;display:block;background:var(--color-studio);color:var(--color-ink);padding:24px 20px;margin:0 0 24px;border-radius:24px;border:1px solid var(--color-studio-deep);min-width:0;overflow:clip}
.studio-greeting{font-size:13px;font-weight:500;color:var(--color-muted);margin:0 0 12px!important;max-width:calc(100% - 74px)!important}
.studio-welcome .welcome-copy{position:relative;z-index:1;min-width:0}
.studio-welcome h1{font-size:clamp(1.7rem,6.5vw,2.4rem);letter-spacing:-.055em;font-weight:800;line-height:1.18;max-width:calc(100% - 68px);white-space:pre-line}
.studio-welcome .welcome-lede{font-size:14px;line-height:1.7;margin:16px 0 20px;max-width:52ch}
.studio-welcome .inline-actions{gap:12px}
.studio-method{font-size:12px;font-weight:500;color:var(--color-muted)}
.studio-welcome .welcome-art{position:absolute;right:4px;top:48px;min-height:0;width:100px;background:var(--color-transparent);color:var(--color-ink);border-radius:0;pointer-events:none;display:block}
.studio-welcome .mascot-front{width:100px;max-width:100%}
.mentor-word,.mentor-stamp{display:none}
.studio-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px;align-items:start}
.studio-primary{min-width:0}
.learning-board.first-step{display:block;grid-template-columns:none;padding:20px;margin:0 0 32px;background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-rule);border-radius:20px;box-shadow:var(--shadow-card)}
.board-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.board-heading h2{font-size:20px;color:var(--color-ink);font-weight:700;letter-spacing:-.035em;margin:0 0 8px}
.board-heading p{font-size:14px;line-height:1.6;margin:0;max-width:44ch}
.board-heading .badge{flex-shrink:0}
.board-playground{margin-top:20px}
.kana-stage{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:204px;background:var(--color-paper);color:var(--color-ink);border-radius:16px;border:1px solid var(--color-rule);background-image:linear-gradient(var(--color-rule),var(--color-rule)),linear-gradient(var(--color-rule),var(--color-rule));background-size:1px 100%,100% 1px;background-position:center;background-repeat:no-repeat}
.kana-stage>span{font:500 104px/1.2 var(--font-japanese);background:var(--color-paper);color:var(--color-ink);padding-inline:20px;position:relative}
.kana-sound{display:flex;align-items:center;justify-content:center;gap:16px;background:var(--color-paper);color:var(--color-ink);padding:0 20px}
.kana-sound strong{font:700 18px var(--font-display)}
.kana-stage small{font-size:11px;line-height:1.5;text-align:center;max-width:90%;margin-top:12px;background:var(--color-paper);color:var(--color-muted);padding-inline:8px}
.kana-selector{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:12px}
.kana-selector button{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:72px;min-width:0;border:1px solid var(--color-rule);background:var(--color-surface);color:var(--color-ink);border-radius:12px}
.kana-selector button>span{font:500 24px/1.2 var(--font-japanese)}
.kana-selector small{font-size:12px}
.kana-selector button[aria-pressed=true]{border:2px solid var(--color-accent);background:var(--color-accent-soft);color:var(--color-accent)}
.kana-selector button[aria-pressed=true] small{color:var(--color-accent)}
.kana-selector button:active{transform:translateY(1px)}
.board-lesson{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:24px;padding-top:20px;border-top:1px solid var(--color-rule)}
.board-lesson>div{min-width:0}
.board-lesson h3{font-size:17px;letter-spacing:-.025em}
.board-lesson p{font-size:12px;margin:8px 0 0}
.board-lesson .btn{min-height:44px;font-size:13px}
.topics{padding:0;margin-block:0 24px}
.topics .section-head h2{font-size:22px}
.topics .section-head{margin-bottom:20px}
.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.topic-card{display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between;gap:20px;padding:16px;min-height:152px;border-radius:16px;background:var(--color-studio);color:var(--color-ink);border-color:var(--color-studio-deep)}
.topic-card>div{width:100%;min-width:0}
.topic-glyph{font-size:38px;width:auto;text-align:left;color:var(--color-ink)}
.topic-card h3{font-size:16px;margin-bottom:6px}
.topic-card .meta{font-size:12px}
.topic-card:nth-child(2){background:var(--color-blue-paper);color:var(--color-blue-ink);border-color:color-mix(in oklch,var(--color-blue-ink) 20%,var(--color-transparent))}
.topic-card:nth-child(3){background:var(--color-green-paper);color:var(--color-green-ink);border-color:color-mix(in oklch,var(--color-green-ink) 20%,var(--color-transparent))}
.topic-card:nth-child(4){background:var(--color-violet-paper);color:var(--color-violet-ink);border-color:color-mix(in oklch,var(--color-violet-ink) 20%,var(--color-transparent))}
.topic-card:nth-child(5){background:var(--color-rose-paper);color:var(--color-rose-ink);border-color:color-mix(in oklch,var(--color-rose-ink) 20%,var(--color-transparent))}
.topic-card:nth-child(n+2) .topic-glyph{color:inherit}
.topic-card .topic-arrow{position:absolute;right:12px;top:16px;width:18px;height:18px;color:inherit;opacity:.7}
.topic-card:last-child:nth-child(odd){grid-column:1/-1;flex-direction:row;align-items:center;min-height:96px;gap:20px}
.topic-card:last-child:nth-child(odd)>div{max-width:none}
.learning-rail{display:grid;gap:24px;min-width:0}
.route-panel{background:var(--color-surface);color:var(--color-ink);border:1px solid var(--color-rule);border-radius:20px;padding:24px;min-width:0;display:none}
.route-title{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.route-title svg{color:var(--color-accent)}
.route-title h2{font-size:18px}
.route-list a{display:flex;align-items:center;gap:12px;min-height:68px;border-bottom:1px solid var(--color-rule)}
.route-list a:last-child{border-bottom:0}
.route-symbol{display:grid;place-items:center;flex-shrink:0;width:36px;height:36px;border-radius:10px;background:var(--color-paper);color:var(--color-accent);font:500 20px var(--font-japanese)}
.route-list a>div{min-width:0;flex:1}
.route-list strong{display:block;font-size:14px;font-weight:600;line-height:1.5;overflow-wrap:anywhere}
.route-list small{display:block;font-size:12px;margin-top:4px}
.route-list svg{width:16px;height:16px;color:var(--color-muted)}
.work-panel{background:var(--color-sidebar);color:var(--color-sidebar-text);border-radius:20px;padding:28px;position:relative;overflow:clip}
.work-panel h2{font-size:24px;line-height:1.25;max-width:16ch}
.work-panel p{color:var(--color-sidebar-muted);font-size:13px;line-height:1.8;margin:16px 0 24px;max-width:45ch}
.work-glyph{display:block;font:500 34px var(--font-japanese);color:var(--color-studio-deep);margin-bottom:24px}
.work-panel .btn{width:100%;justify-content:space-between;white-space:nowrap;font-size:13px}
.footer{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 0;margin-top:40px;border-top:1px solid var(--color-rule);font-size:13px}
.footer-brand{display:flex;align-items:center;gap:12px;min-width:0}
.footer-brand strong{font:700 15px var(--font-display);color:var(--color-ink)}
.footer-brand p{font-size:12px;margin-top:6px;max-width:32ch}
.footer-brand .brand-mark{flex-shrink:0}
.footer nav{display:flex;align-items:center;flex-wrap:wrap;gap:8px 20px}
.footer nav a{font-size:13px;min-height:44px;white-space:nowrap}
.page-heading{margin-top:8px}
.lesson-row{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;align-items:start;padding-block:24px}
.lesson-symbol{width:64px;height:76px}
.lesson-row-copy{min-width:0;flex:none}
.lesson-row>form,.lesson-row>.btn{grid-column:2;margin:0;justify-self:start;max-width:100%}
.lesson-row>.btn,.lesson-row>form .btn{font-size:13px;padding-inline:16px}
.lesson-actions .btn{font-size:13px;max-width:100%}
.auth-layout{min-height:0}
.auth-story .big-jp{font-size:24px;margin-bottom:16px}
.auth-story .mascot{max-width:100%}
.editor fieldset,.membership-form,.membership-form label,.panel{min-width:0}
.admin-tabs{gap:8px}
.admin-tabs .chip{padding-inline:12px}
.admin-records code{font-size:12px;overflow-wrap:anywhere;word-break:break-all}
.membership-form{width:100%}
.membership-form label{min-width:min(140px,100%)}
.prose{max-width:70ch}
.writing-panel canvas{width:min(100%,360px)}
.history-row,.history-row>div,.account-welcome>div{min-width:0;overflow-wrap:anywhere}
@media(min-width:26rem){.header-actions select{width:96px;font-size:13px}.topbar{padding-inline:20px}.brand{font-size:14px}.brand-mark{width:36px;height:40px}.menu-toggle,.login-link{width:40px}.studio-welcome h1{max-width:calc(100% - 100px);font-size:32px}.studio-welcome .welcome-art{right:16px;top:56px;width:120px}.studio-welcome .mascot-front{width:120px}.topic-card{padding:20px}}
@media(min-width:40rem){main{padding:32px 28px 112px}.topbar{padding-inline:28px}.brand{font-size:17px}.brand-second{display:inline;margin-left:4px}.header-actions{gap:16px}.header-actions select{width:120px;font-size:14px}.login-link{width:auto;gap:8px}.login-link span{display:inline}.menu-toggle{width:44px}.studio-welcome{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);align-items:center;gap:16px;padding:32px;min-height:312px;margin-bottom:32px}.studio-greeting{font-size:14px;max-width:none!important}.studio-welcome h1{font-size:clamp(2.5rem,4.5vw,3.2rem);max-width:none;line-height:1.12}.studio-welcome .welcome-lede{font-size:15px;max-width:48ch;margin:20px 0 24px}.studio-welcome .welcome-art{position:relative;right:auto;top:auto;width:100%;min-height:240px;display:flex;align-items:center;justify-content:center;pointer-events:auto}.studio-welcome .mascot-front{width:210px;max-width:100%}.mentor-word{display:block;position:absolute;top:0;right:0;border:1px solid var(--color-studio-deep);background:var(--color-paper);color:var(--color-ink);border-radius:16px 16px 16px 0;padding:8px 16px;transform:rotate(4deg);z-index:2}.mentor-word span{font:500 16px var(--font-japanese)}.mentor-word small{display:block;font-size:11px;text-align:center;margin-top:4px}.mentor-stamp{display:block;position:absolute;bottom:0;right:8px;color:var(--color-accent);font:500 22px var(--font-japanese);transform:rotate(-6deg)}.learning-board.first-step{padding:28px}.board-heading h2{font-size:24px}.kana-stage{min-height:230px}.kana-stage>span{font-size:120px}.topic-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topic-card{min-height:156px;flex-direction:row;align-items:center;justify-content:flex-start}.topic-card>div{width:auto}.topic-card:last-child:nth-child(odd){min-height:108px}.topic-glyph{font-size:44px}.topic-card h3{font-size:18px}.learning-rail{grid-template-columns:repeat(2,minmax(0,1fr))}.route-panel{display:block}.work-panel{display:flex;flex-direction:column;justify-content:space-between}.work-panel .btn{margin-top:auto}.work-panel h2{font-size:26px}.lesson-row{grid-template-columns:64px minmax(0,1fr) auto;align-items:center}.lesson-row>form,.lesson-row>.btn{grid-column:3}.footer{flex-wrap:nowrap}.auth-layout{align-items:center;min-height:540px}.auth-story .mascot{display:block;max-width:230px}.membership-form label{flex:1}.account-welcome .mascot{display:block}}
@media(min-width:48rem){.header-actions .btn{display:inline-flex}.studio-method{font-size:13px}.board-playground{display:grid;grid-template-columns:minmax(0,1fr) 100px;gap:16px}.kana-selector{display:flex;flex-direction:column;gap:8px;margin-top:0}.kana-selector button{flex-direction:row;gap:12px;min-height:40px;flex:1}.kana-selector button>span{font-size:22px}.kana-stage{min-height:256px}.kana-stage>span{font-size:140px}.board-lesson{flex-wrap:nowrap}.board-lesson h3{font-size:18px}.board-lesson .btn{flex-shrink:0}}
@media(min-width:64rem){.app-layout{display:block}.sidebar{display:none}.studio-grid{grid-template-columns:minmax(0,1fr) 280px;gap:24px}.learning-rail{grid-template-columns:minmax(0,1fr)}.work-panel{min-height:320px}.route-panel{padding:24px}.studio-welcome{padding:36px 40px}.studio-welcome .mascot-front{width:240px}.studio-welcome .welcome-art{min-height:272px}.studio-welcome h1{font-size:52px}.studio-welcome .welcome-lede{font-size:16px;max-width:48ch}.welcome-copy .inline-actions{gap:20px}.topic-card{flex-direction:column;align-items:flex-start;gap:24px}.topic-card:last-child:nth-child(odd){flex-direction:row;align-items:center}}
@media(min-width:70rem){.topbar{padding-inline:32px}.brand{font-size:18px}.brand-mark{width:40px;height:44px;font-size:28px}.header-actions{gap:20px}.header-actions .menu-toggle{display:none}.app-layout{display:grid;grid-template-columns:216px minmax(0,1fr)}.sidebar{display:flex;flex-direction:column;position:sticky;top:var(--header-height);height:calc(100dvh - var(--header-height));min-height:0;padding:32px 16px;background:var(--color-sidebar);color:var(--color-sidebar-text);border:0;align-self:start}.sidebar .nav-link{color:var(--color-sidebar-muted);font-size:13px;gap:12px;min-height:48px;border-radius:12px;padding:12px}.sidebar .nav-link.selected{background:var(--color-sidebar-active);color:var(--color-sidebar-text);box-shadow:inset 3px 0 0 var(--color-studio-deep)}.sidebar .nav-link svg{width:20px;height:20px}.sidebar .nav-divider{border-color:var(--color-sidebar-rule);margin:24px 12px}.sidebar-note{margin:auto 12px 24px;padding-top:40px}.sidebar-note>span{color:var(--color-studio-deep);font-size:26px}.sidebar-note p{color:var(--color-sidebar-muted);font-size:12px;max-width:160px}.sidebar .text-button{color:var(--color-sidebar-text);margin-left:12px}.bottom-nav{display:none}main{padding:32px 28px 40px}.audio-status{bottom:24px;left:auto;right:24px}.studio-welcome{padding:32px;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr)}.studio-welcome h1{font-size:46px}.studio-grid{grid-template-columns:minmax(0,1fr) 264px;gap:24px}.learning-board.first-step{padding:24px}.board-heading h2{font-size:22px}.board-playground{grid-template-columns:minmax(0,1fr);gap:0}.kana-selector{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-top:12px}.kana-selector button{flex-direction:column;min-height:64px;gap:4px}.board-lesson{flex-wrap:wrap}.topic-card h3{font-size:16px}.route-panel{padding:20px}.work-panel{padding:24px}.footer{margin-top:48px}}
@media(min-width:85rem){main{padding:40px}.studio-welcome{padding:40px 44px;min-height:344px}.studio-welcome h1{font-size:56px}.studio-welcome .welcome-lede{max-width:52ch}.studio-welcome .mascot-front{width:260px}.studio-welcome .welcome-art{min-height:286px}.studio-grid{grid-template-columns:minmax(0,1fr) 296px;gap:28px}.learning-board.first-step{padding:28px}.board-playground{grid-template-columns:minmax(0,1fr) 96px;gap:16px}.kana-selector{display:flex;flex-direction:column;gap:8px;margin-top:0}.kana-selector button{flex-direction:row;min-height:40px;gap:12px}.board-lesson{flex-wrap:nowrap}.topic-card{flex-direction:row;align-items:center;gap:20px}.topic-card h3{font-size:18px}.work-panel{padding:28px}.route-panel{padding:24px}.mentor-word{right:20px}.mentor-stamp{right:28px}}
@media(hover:hover){.sidebar .nav-link:hover{background:var(--color-sidebar-active);color:var(--color-sidebar-text)}.studio-welcome .welcome-art:hover .mascot{transform:translateY(-4px) rotate(-2deg)}.studio-welcome .mascot{transition:transform var(--dur-short) var(--ease-out)}.kana-selector button:hover{background:var(--color-paper-2);color:var(--color-ink)}.kana-selector button[aria-pressed=true]:hover{background:var(--color-accent-soft);color:var(--color-accent)}.route-list a:hover strong{color:var(--color-accent)}.topic-card:hover{outline:1px solid currentColor;border-color:var(--color-rule)}}
@media(max-height:30rem) and (max-width:69.99rem){.bottom-nav{display:none}main{padding-bottom:40px}}
@media(prefers-reduced-motion:reduce){.studio-welcome .welcome-art:hover .mascot,.kana-selector button:active,.btn:active{transform:none}.studio-welcome .mascot{transition:none}}

@media(max-width:39.99rem){.studio-welcome h1{max-width:calc(100% - 88px)}.studio-welcome .welcome-art{width:88px;top:48px;right:8px}.studio-welcome .mascot-front{width:88px}.studio-welcome .welcome-lede{margin-top:28px}}
@media(max-width:374px){.studio-welcome h1{max-width:calc(100% - 72px)}.studio-welcome .welcome-art,.studio-welcome .mascot-front{width:72px}}

.character-write{margin-top:16px}
.writing-open{overflow-y:hidden}
.writing-modal{width:min(560px,calc(100% - 24px));max-width:100%;max-height:calc(100dvh - 24px);margin:auto;padding:20px;border:1px solid var(--color-rule);border-radius:24px;background:var(--color-surface);color:var(--color-ink);overflow-y:auto;overscroll-behavior:contain;box-shadow:var(--shadow-card)}
.writing-modal::backdrop{background:color-mix(in oklch,var(--color-sidebar) 65%,var(--color-transparent))}
.writing-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.writing-modal-head h2{font-size:22px}
.writing-modal-head p{display:flex;align-items:center;gap:12px;margin-top:4px}
#writing-symbol{font:500 28px/1.4 var(--font-japanese);color:var(--color-accent)}
#writing-hint{font-size:14px;margin:8px 0 16px}
.writing-stage{position:relative;width:min(100%,420px);aspect-ratio:1;margin-inline:auto;border:1px solid var(--color-rule);border-radius:16px;overflow:clip;background:var(--color-paper)}
.writing-stage::before,.writing-stage::after{content:"";position:absolute;pointer-events:none;border-color:var(--color-canvas-rule);border-style:dashed;border-width:0}
.writing-stage::before{top:50%;width:100%;border-top-width:1px}
.writing-stage::after{left:50%;height:100%;border-left-width:1px}
#writing-guide{position:absolute;inset:0;display:grid;place-items:center;font:500 clamp(140px,50vw,290px)/1 var(--font-japanese);color:var(--color-rule);pointer-events:none;user-select:none}
#writing-guide[hidden]{display:none}
.writing-stage #writing-pad{position:relative;display:block;width:100%;height:100%;aspect-ratio:1;background:transparent;border:0;border-radius:0;touch-action:none;user-select:none;cursor:crosshair}
.writing-tools{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:16px}
.writing-tools .btn{flex:1}
.writing-tools .check-label{width:100%;font-weight:400}
#writing-instructions{margin-top:16px;border-top:1px solid var(--color-rule);padding-top:12px}
#writing-instructions summary{min-height:44px;font-weight:600}
#writing-help p{white-space:pre-line;font-size:14px}
#writing-help img{max-height:260px;object-fit:contain;margin-top:12px}
@media(min-width:40rem){.writing-modal{padding:28px}.writing-tools .check-label{width:auto;flex:1}.writing-tools .btn{flex:none}}