/* Hallmark · macrostructure: Narrative Workflow · theme: Japanese notebook
 * genre: editorial · nav: N6 notebook masthead · footer: Ft6 letter close
 * design-system: docs/design.md · designed-as-app
 * pre-emit critique: P4 H5 E4 S5 R5 V4
 * User delegated the design. Existing local typography and learning routes retained. */

html{scroll-padding-top:150px}
body{background:var(--color-paper)}
h1,h2,h3{letter-spacing:-.035em}
button,a,input,select,textarea{touch-action:manipulation}
.skip-link{z-index:var(--z-navigation)}
.topbar{height:auto;min-height:0;display:block;padding:0;background:var(--color-paper);border-bottom:1px solid var(--color-rule);box-shadow:none}
.topbar-inner{max-width:var(--page-width);padding:20px var(--page-gutter) 16px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:88px}
.brand{gap:12px;font-size:18px;letter-spacing:-.045em}
.brand-mark{width:42px;height:44px;border-radius:5px;background:var(--color-accent);color:var(--color-accent-ink);font-size:29px;transform:rotate(-5deg)}
.brand-second{display:inline;margin-left:4px}
.brand-dot{display:none}
.header-actions{gap:24px}
.header-actions select{width:118px;background:var(--color-transparent);border:1px solid var(--color-transparent);padding:8px;min-height:44px}
.header-actions .btn{display:inline-flex;min-height:44px;box-shadow:none}
.login-link{display:flex;gap:8px;width:auto;min-width:44px}
.login-link span{display:inline}
.header-actions .menu-toggle{display:none}
.desktop-navigation{max-width:var(--page-width);padding:0 var(--page-gutter);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}
.desktop-navigation nav{display:flex;align-items:center;gap:26px;min-width:0}
.nav-link{position:relative;color:var(--color-muted);padding:15px 0 16px;margin:0;min-height:54px;border-radius:0;font-size:13px;font-weight:500;gap:8px}
.nav-link svg{width:17px;height:17px}
.nav-link.selected{color:var(--color-ink);background:var(--color-transparent);font-weight:700;box-shadow:none}
.desktop-navigation .nav-link::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:3px;background:var(--color-accent);transform:scaleX(0);transform-origin:left;transition:transform var(--dur-short) var(--ease-out)}
.desktop-navigation .nav-link.selected::after{transform:scaleX(1)}
.desktop-navigation .nav-divider{height:18px;border:0;border-left:1px solid var(--color-rule);margin:0}
.nav-caption{font:400 12px var(--font-japanese);letter-spacing:.1em;color:var(--color-muted);white-space:nowrap}
.app-layout{display:block;max-width:var(--page-width)}
main{max-width:none;padding:40px var(--page-gutter) 0}
.bottom-nav{display:none}
.btn{border-radius:6px;box-shadow:none;padding:12px 20px;min-height:48px;font-weight:600;font-size:14px;gap:12px}
.btn.secondary{border-color:var(--color-rule);background:var(--color-transparent);box-shadow:none}
.btn:active,.btn.secondary:active{box-shadow:none;transform:translateY(1px)}
.btn:disabled:hover{background:var(--color-accent);color:var(--color-accent-ink)}
.btn.success:disabled:hover{background:var(--color-success-soft);color:var(--color-success)}
.btn[aria-busy=true]{cursor:wait}
.text-link{gap:12px;text-underline-offset:5px}
.text-link svg{width:17px;height:17px}
.badge{padding:3px 9px;border-radius:4px}

/* The greeting lives on the page, with the mascot as its single illustration. */
.notebook-welcome{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);align-items:center;gap:32px;min-height:332px;margin:0 0 44px}
.notebook-welcome .welcome-copy{min-width:0;padding:12px 0}
.welcome-copy .notebook-eyebrow{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:500;margin:0 0 20px;max-width:none;color:var(--color-muted)}
.ink-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--color-accent);flex-shrink:0}
.notebook-welcome h1{font-size:clamp(36px,4.3vw,58px);font-weight:800;line-height:1.16;letter-spacing:-.052em;white-space:pre-line}
.notebook-welcome .welcome-lede{max-width:47ch;line-height:1.8;font-size:15px;margin:22px 0 26px}
.notebook-welcome .inline-actions{gap:20px}
.studio-method{font-size:12px;color:var(--color-muted)}
.mochi-scene{position:relative;min-width:0;height:330px;display:grid;place-items:center;isolation:isolate}
.mochi-scene::before{content:"";position:absolute;width:278px;height:278px;background:var(--color-mochi-backdrop);border-radius:50%;z-index:-1}
.mochi-button{position:relative;background:var(--color-transparent);padding:0;width:290px;height:290px;border-radius:50%;z-index:1;align-self:end;margin-bottom:20px;transform-origin:50% 88%}
.mascot,.mascot-front,.mascot-happy,.mascot-calm{mix-blend-mode:normal;aspect-ratio:1;width:220px;max-width:100%}
.mochi-button .mascot{display:block;width:100%;height:100%}
.mochi-message{position:absolute;top:4px;right:5px;z-index:2;background:var(--color-surface);border:1px solid var(--color-rule);border-radius:14px 14px 14px 2px;padding:12px 18px;transform:rotate(5deg);text-align:center;pointer-events:none}
.mochi-message>span{font:500 16px var(--font-japanese)}
.mochi-message small{display:block;font-size:11px;margin-top:3px}
.mochi-ground{position:absolute;bottom:28px;width:145px;height:13px;border-radius:50%;background:var(--color-mochi-shadow);z-index:-1}
.mochi-signature{position:absolute;bottom:0;color:var(--color-muted);font:400 11px var(--font-japanese);letter-spacing:.08em}
.scene-letter{position:absolute;color:var(--color-muted);font:400 26px var(--font-japanese);pointer-events:none}
.scene-letter-a{left:18px;top:85px;transform:rotate(-14deg)}
.scene-letter-i{right:24px;bottom:74px;transform:rotate(12deg)}

/* A practice sheet and a chapter index have deliberately different structures. */
.notebook-workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px;align-items:start}
.notebook-sheet{position:relative;border:1px solid var(--color-rule);border-radius:3px;background:var(--color-surface);padding:24px 28px 26px;box-shadow:5px 5px 0 var(--color-paper-2),6px 6px 0 var(--color-rule)}
.sheet-topline{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-bottom:20px;margin-bottom:22px;border-bottom:1px solid var(--color-rule)}
.section-kicker{font:600 10px/1.6 var(--font-body);letter-spacing:.13em;color:var(--color-muted)}
.sheet-index{font:400 12px var(--font-japanese);color:var(--color-muted);white-space:nowrap}
.board-heading{display:block}
.board-heading h2{font-size:22px;color:var(--color-ink);font-weight:700;margin:0 0 6px;letter-spacing:-.035em}
.board-heading p{font-size:13px;line-height:1.65;max-width:none;margin:0}
.board-playground{display:block;margin-top:20px}
.kana-stage{position:relative;display:flex;min-height:198px;border:0;border-radius:0;background-color:var(--color-surface);background-image:linear-gradient(var(--color-notebook-line) 1px,var(--color-transparent) 1px),linear-gradient(90deg,var(--color-notebook-line) 1px,var(--color-transparent) 1px);background-size:28px 28px;background-position:center;background-repeat:repeat}
.kana-stage>span{font:500 106px/1.35 var(--font-japanese);background:var(--color-transparent);color:var(--color-ink);padding:0 12px}
.kana-sound{background:var(--color-surface);color:var(--color-ink);padding:0 8px;gap:12px;border-radius:4px}
.kana-sound strong{font:500 17px var(--font-body)}
.kana-sound .icon-button{min-width:44px;min-height:44px;width:44px;height:44px;border-radius:50%;background:var(--color-paper-2);color:var(--color-ink)}
.kana-sound svg{width:19px;height:19px}
.kana-stage small{background:var(--color-surface);margin:10px 0 0;padding:2px 8px;font-size:10px;color:var(--color-muted)}
.kana-selector{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:16px;border-bottom:1px solid var(--color-rule)}
.kana-selector button{position:relative;display:flex;flex-direction:row;gap:8px;min-height:54px;border:0;border-radius:0;background:var(--color-transparent);color:var(--color-muted)}
.kana-selector button>span{font:500 23px var(--font-japanese)}
.kana-selector button small{font-size:11px}
.kana-selector button[aria-pressed=true]{border:0;background:var(--color-accent-soft);color:var(--color-accent)}
.kana-selector button[aria-pressed=true]::after{content:"";height:2px;position:absolute;bottom:-1px;left:0;right:0;background:var(--color-accent)}
.board-lesson{display:block;margin-top:20px;padding-top:0;border:0}
.board-lesson h3{font-size:14px;line-height:1.6;letter-spacing:-.01em}
.board-lesson p{font-size:12px;margin:6px 0 0}
.free-label{color:var(--color-success);font-weight:500}
.board-lesson .inline-actions{display:flex;flex-wrap:wrap;margin-top:18px;gap:12px 22px}
.board-lesson .btn,.board-lesson .text-link{font-size:13px}
.curriculum{padding-top:10px;min-width:0}
.curriculum .section-head{margin-bottom:18px;display:block}
.curriculum .section-kicker{margin-bottom:10px}
.curriculum h2{font-size:26px;letter-spacing:-.045em}
.curriculum .section-head p:not(.section-kicker){font-size:13px;line-height:1.75;max-width:37ch;margin-top:10px}
.curriculum-list{border-top:1px solid var(--color-rule)}
.curriculum-row{display:flex;align-items:center;gap:16px;min-height:77px;padding:16px 0;border-bottom:1px solid var(--color-rule)}
.curriculum-glyph{width:44px;flex-shrink:0;color:var(--color-ink);font:400 29px/1.5 var(--font-japanese);text-align:center}
.curriculum-copy{min-width:0;flex:1}
.curriculum-copy strong{display:block;font:600 14px/1.6 var(--font-display);overflow-wrap:anywhere}
.curriculum-copy small{display:block;font-size:11px;margin-top:4px}
.curriculum-row>svg{width:17px;height:17px;color:var(--color-muted)}
.curriculum-all{font-size:13px;margin-top:12px;color:var(--color-ink)}
.japan-note{display:flex;align-items:center;gap:32px;margin-top:48px;padding:30px 32px;background:var(--color-paper-2);border-top:1px solid var(--color-rule);border-bottom:1px solid var(--color-rule)}
.japan-note-mark{flex-shrink:0;font:500 29px/1.6 var(--font-japanese);color:var(--color-ink);writing-mode:vertical-rl;letter-spacing:.06em;display:flex;align-items:center;gap:10px}
.japan-note-mark span{font-size:10px;letter-spacing:.2em;color:var(--color-muted)}
.japan-note-copy{min-width:0;flex:1}
.japan-note h2{font-size:21px;margin-top:6px}
.japan-note-copy>p:last-child{font-size:12px;line-height:1.8;max-width:63ch;margin-top:10px}
.japan-note .btn{flex-shrink:0;color:var(--color-ink);background:var(--color-surface);font-size:13px}
.footer{margin-top:48px;padding:28px 0 32px;align-items:flex-end}
.footer-signoff>span{font:400 20px var(--font-japanese);color:var(--color-ink)}
.footer-signoff p{font-size:12px;margin:8px 0 12px}
.footer-signoff small{font-size:11px;color:var(--color-muted)}
.footer nav{gap:24px}
.footer nav a{font-size:12px}

/* The same paper, rules and typography continue through every learning route. */
.page-heading{margin:8px 0 32px;padding-bottom:24px;border-bottom:1px solid var(--color-rule)}
.page-heading h1{font-size:clamp(28px,4vw,44px);letter-spacing:-.04em}
.page-heading p{font-size:15px;line-height:1.8;max-width:65ch}
.search{border-radius:5px;background:var(--color-surface);padding:8px 12px;margin-bottom:24px}
.search input{background:var(--color-transparent)}
.chips,.admin-tabs{gap:4px 24px;padding-bottom:0;border-bottom:1px solid var(--color-rule);margin:20px 0 28px}
.chip,.admin-tabs .chip{position:relative;border:0;border-radius:0;background:var(--color-transparent);padding:12px 0;min-height:48px;font-size:13px;color:var(--color-muted)}
.chip.active{background:var(--color-transparent);color:var(--color-ink);font-weight:700;box-shadow:inset 0 -3px var(--color-accent)}
.lesson-list{border-top:0}
.lesson-row{padding-block:26px;gap:24px}
.lesson-symbol{background:var(--color-paper-2);color:var(--color-ink);border-radius:3px;border:1px solid var(--color-rule);font-weight:400}
.lesson-row h2{font-size:20px}
.lesson-row p{line-height:1.8}
.lesson-row .btn.secondary{border:0;padding-inline:4px;text-decoration:underline;text-underline-offset:5px}
.character,.panel,.plan,.auth-form{border-radius:6px;box-shadow:none}
.character{padding:24px;background:var(--color-surface)}
.character-top{border-bottom:1px solid var(--color-rule);padding-bottom:16px}
.character-top>span{font-weight:400;color:var(--color-ink)}
.character-write{font-size:12px;padding-inline:10px}
.locked-panel{border-radius:6px;border:1px solid var(--color-rule);background:var(--color-paper-2)}
.auth-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;min-height:540px;max-width:920px;margin-inline:auto}
.auth-story{position:relative;align-self:center}
.auth-story .big-jp{color:var(--color-muted);font-size:20px}
.auth-story h1{font-size:38px}
.auth-story .mascot{display:block;width:230px;margin:8px auto 0;background-size:contain}
.auth-story>p{font-size:14px;line-height:1.85}
.auth-form{padding:32px;gap:22px}
.auth-form h2{font-size:22px}
input:not([type=radio]):not([type=checkbox]),select,textarea{border-radius:5px;min-height:46px}
.choice{border-radius:5px;min-height:58px}
.notice,.alert,.source-note{border-radius:4px}
.notice{border-left:3px solid var(--color-success)}
.alert{border-left:3px solid var(--color-error)}
.account-welcome .mascot,.result-heading .mascot{display:block;width:170px}
.account-grid .panel{border-top:3px solid var(--color-ink)}
.plan{border-top:3px solid var(--color-ink);padding:30px}
.plan .price{font-size:30px}
.writing-modal{border-radius:10px;box-shadow:var(--shadow-soft)}
.writing-stage{border-radius:4px;background:var(--color-surface)}
.writing-modal .menu-toggle{display:grid;min-width:44px}
.audio-status{bottom:24px}

@media(hover:hover){
 .nav-link:hover,.nav-link.selected:hover{background:var(--color-transparent);color:var(--color-ink)}
 .desktop-navigation .nav-link:hover::after{transform:scaleX(1)}
 .curriculum-row:hover .curriculum-copy strong{color:var(--color-accent);text-decoration:underline;text-underline-offset:4px}
 .curriculum-row:hover>svg{transform:translateX(3px)}
 .curriculum-row>svg{transition:transform var(--dur-short) var(--ease-out)}
 .chip:hover{background:var(--color-transparent);color:var(--color-accent)}
 .btn.secondary:hover{background:var(--color-paper-3)}
 .kana-selector button:hover{background:var(--color-paper-2)}
}
@media(min-width:1200px){.notebook-welcome{min-height:356px}.notebook-welcome .welcome-lede{font-size:16px}.mochi-scene{height:350px}.mochi-scene::before{width:292px;height:292px}.mochi-button{width:312px;height:312px}.mochi-message{right:18px}.notebook-workspace{gap:64px}}
@media(max-width:1100px){.nav-caption{display:none}.desktop-navigation nav{width:100%;justify-content:space-between;gap:16px}.notebook-workspace{gap:36px}.notebook-welcome{gap:24px}.mochi-scene::before{width:240px;height:240px}.mochi-button{width:270px;height:270px}.mochi-message{right:0}.scene-letter-a{left:0}.scene-letter-i{right:0}}
@media(max-width:899px){
 html{scroll-padding-top:100px}
 .topbar-inner{min-height:76px;padding-block:14px}
 .desktop-navigation{display:none}
 .header-actions{gap:14px}
 .header-actions .menu-toggle{display:grid;min-width:44px;width:44px}
 .header-actions .btn{display:none}
 .bottom-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));padding:0 var(--space-sm) env(safe-area-inset-bottom);min-height:68px;border-top:1px solid var(--color-rule);box-shadow:none;background:var(--color-paper)}
 .bottom-nav a{position:relative;border-radius:0;min-height:68px;gap:5px;font-size:11px;color:var(--color-muted)}
 .bottom-nav a[aria-current=page]{background:var(--color-transparent);color:var(--color-accent);font-weight:700}
 .bottom-nav a[aria-current=page]::before{content:"";position:absolute;top:0;width:26px;height:3px;background:var(--color-accent)}
 .bottom-nav svg{width:21px;height:21px}
 main{padding-top:28px;padding-bottom:calc(76px + env(safe-area-inset-bottom))}
 .audio-status{bottom:calc(80px + env(safe-area-inset-bottom))}
 .mobile-drawer{border-radius:0;background:var(--color-paper);color:var(--color-ink);padding:24px;max-width:min(380px,100%)}
 .mobile-drawer .nav-link{gap:16px;padding:16px 4px;border-bottom:1px solid var(--color-rule);min-height:56px;font-size:14px}
 .mobile-drawer .nav-link.selected{color:var(--color-accent);background:var(--color-transparent)}
 .mobile-drawer .nav-link.selected::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--color-accent);margin-left:auto}
 .mobile-drawer .nav-divider{margin:14px 0;border:0}
 .mobile-drawer .nav-link svg{width:20px;height:20px}
 .drawer-head .brand-mark{display:none}
 .notebook-welcome{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);min-height:290px;margin-bottom:36px;gap:20px}
 .notebook-welcome h1{font-size:38px}
 .notebook-welcome .welcome-lede{font-size:14px;margin-block:18px 22px}
 .notebook-welcome .inline-actions{gap:12px}
 .mochi-scene{height:280px}
 .mochi-button{width:225px;height:225px;margin-bottom:22px}
 .mochi-scene::before{width:215px;height:215px}
 .mochi-message{padding:10px 14px;top:2px;right:0}
 .mochi-message>span{font-size:14px}
 .scene-letter{font-size:20px}
 .scene-letter-a{top:92px;left:0}
 .scene-letter-i{bottom:60px;right:0}
 .notebook-workspace{gap:28px;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
 .notebook-sheet{padding:20px}
 .sheet-index{display:none}
 .board-heading h2{font-size:20px}
 .curriculum h2{font-size:23px}
 .curriculum-row{gap:10px;min-height:78px}
 .curriculum-glyph{width:30px;font-size:25px}
 .curriculum-copy strong{font-size:13px}
 .japan-note{padding:24px;gap:24px;flex-wrap:wrap}
 .japan-note-copy{flex-basis:60%}
 .japan-note .btn{margin-left:70px}
 .auth-layout{gap:32px}
 .auth-form{padding:24px}
}
@media(max-width:639px){
 :root{--page-gutter:20px}
 .topbar-inner{padding:12px var(--page-gutter);min-height:72px;gap:10px}
 .brand{font-size:14px;gap:8px}
 .brand-mark{width:32px;height:36px;font-size:24px}
 .brand-second{display:block;margin-left:0}
 .header-actions{gap:4px}
 .header-actions select{width:87px;font-size:12px;padding-inline:2px}
 .login-link{display:none}
 .header-actions .menu-toggle{width:44px;min-width:44px}
 main{padding-top:24px}
 .notebook-welcome{position:relative;display:block;min-height:0;margin-bottom:32px}
 .notebook-welcome .welcome-copy{padding:0}
 .welcome-copy .notebook-eyebrow{font-size:11px;margin-bottom:18px;gap:8px}
 .notebook-welcome h1{font-size:clamp(30px,8.1vw,44px);line-height:1.2;letter-spacing:-.047em}
 .notebook-welcome .welcome-lede{font-size:13px;margin:18px 0;line-height:1.8;max-width:46ch}
 .notebook-welcome .inline-actions{display:flex;flex-direction:column;align-items:flex-start;gap:10px;padding-top:12px;min-height:130px;justify-content:center;padding-right:142px}
 .notebook-welcome .inline-actions .btn{font-size:12px;padding:12px 14px;gap:8px}
 .notebook-welcome .inline-actions .btn svg{width:16px;height:16px}
 .studio-method{font-size:10px;max-width:130px;line-height:1.7}
 .mochi-scene{position:absolute;right:-4px;bottom:-6px;width:140px;height:150px;pointer-events:none}
 .mochi-scene::before{width:126px;height:126px;bottom:10px}
 .mochi-button{width:142px;height:142px;margin-bottom:0;pointer-events:auto}
 .mochi-ground{width:75px;height:7px;bottom:13px}
 .mochi-signature,.scene-letter{display:none}
 .mochi-message{top:-8px;right:0;padding:4px 8px;border-radius:8px 8px 8px 0;transform:rotate(4deg)}
 .mochi-message>span{font-size:10px}
 .mochi-message small{display:none}
 .notebook-workspace{display:flex;flex-direction:column;gap:38px}
 .notebook-workspace>*,.studio-primary{width:100%;min-width:0}
 .notebook-sheet{padding:20px 18px 22px;box-shadow:3px 3px 0 var(--color-paper-2),4px 4px 0 var(--color-rule)}
 .sheet-topline{padding-bottom:14px;margin-bottom:18px}
 .sheet-index{display:block;font-size:10px}
 .section-kicker{font-size:9px;letter-spacing:.11em}
 .board-heading h2{font-size:20px}
 .board-heading p{font-size:12px}
 .board-playground{margin-top:16px}
 .kana-stage{min-height:184px}
 .kana-stage>span{font-size:96px}
 .kana-selector button{flex-direction:column;gap:0;min-height:62px}
 .kana-selector button>span{font-size:23px}
 .kana-selector button small{font-size:10px}
 .board-lesson .inline-actions{gap:10px 16px}
 .board-lesson .btn,.board-lesson .text-link{font-size:12px}
 .board-lesson .btn{padding-inline:14px}
 .board-lesson .btn svg{width:17px;height:17px}
 .board-lesson h3{font-size:13px}
 .curriculum{padding-top:0}
 .curriculum h2{font-size:26px}
 .curriculum .section-head p:not(.section-kicker){max-width:none}
 .curriculum-row{gap:18px;min-height:78px}
 .curriculum-glyph{width:38px;font-size:29px}
 .curriculum-copy strong{font-size:14px}
 .curriculum-all{font-size:12px}
 .japan-note{margin-top:32px;padding:24px 20px;gap:20px}
 .japan-note-mark{font-size:23px;gap:6px}
 .japan-note h2{font-size:20px;line-height:1.45}
 .japan-note-copy>p:last-child{font-size:11px}
 .japan-note .btn{margin-left:52px;font-size:12px;padding-inline:16px}
 .footer{margin-top:32px;display:block;padding-block:24px}
 .footer nav{margin-top:12px}
 .footer-signoff>span{font-size:19px}
 .page-heading{padding-bottom:20px;margin-bottom:24px}
 .page-heading h1{font-size:30px}
 .page-heading p{font-size:14px}
 .chips,.admin-tabs{gap:0 20px}
 .chip,.admin-tabs .chip{font-size:12px;min-height:46px}
 .lesson-row{gap:16px;grid-template-columns:48px minmax(0,1fr)}
 .lesson-symbol{width:48px;height:62px;font-size:30px}
 .lesson-row h2{font-size:18px}
 .lesson-row p{font-size:13px}
 .lesson-row>.btn,.lesson-row>form{grid-column:2}
 .auth-layout{display:block;min-height:0;padding-top:0}
 .auth-story{min-height:144px;padding-right:88px}
 .auth-story .big-jp{font-size:15px;margin-bottom:12px}
 .auth-story h1{font-size:30px}
 .auth-story>p{font-size:13px;margin-top:12px}
 .auth-story .mascot{position:absolute;right:-8px;top:20px;width:102px;margin:0}
 .auth-form{margin-top:24px;padding:22px 20px;gap:20px}
 .auth-form h2{font-size:20px}
 .account-welcome .mascot,.result-heading .mascot{width:90px}
 .account-welcome,.result-heading{gap:12px}
 .account-welcome h1,.result-heading h1{font-size:27px}
 .account-welcome p{font-size:13px}
 .character{padding:18px}
 .character-grid{gap:12px}
 .character .btn{font-size:11px;padding-inline:8px}
 .writing-modal{padding:18px}
 .writing-modal-head h2{font-size:20px}
 .plan{padding:24px}
 .timer{width:100%;display:flex;justify-content:space-between}
 .quiz-heading h1{font-size:26px}
}
@media(max-width:359px){
 :root{--page-gutter:16px}
 .brand{font-size:12px;gap:7px}
 .header-actions select{width:80px;font-size:11px}
 .notebook-welcome h1{font-size:29px}
 .notebook-welcome .inline-actions{padding-right:112px}
 .notebook-welcome .inline-actions .btn{padding-inline:12px;gap:6px}
 .mochi-scene{width:118px;height:128px;right:-2px}
 .mochi-button{width:122px;height:122px}
 .mochi-scene::before{width:108px;height:108px}
 .sheet-index{font-size:9px}
 .notebook-sheet{padding-inline:16px}
 .board-heading h2{font-size:19px}
 .curriculum-row{gap:12px}
 .header-actions .avatar{width:30px;font-size:12px}
}
@media(max-height:480px) and (max-width:899px){.bottom-nav{display:none}main{padding-bottom:24px}.audio-status{bottom:16px}}
@media(prefers-reduced-motion:reduce){.mascot,.mochi-button,.mochi-button.is-greeting,.mochi-button.is-listening{animation:none!important;transform:none!important}.curriculum-row:hover>svg,.btn:active{transform:none}.desktop-navigation .nav-link::after{transition:none}}

/* Hallmark · component: section and content tabs · genre: editorial · theme: Japanese notebook
 * Existing docs/design.md tokens · pre-emit critique: P4 H5 E4 S5 R5 V4 */
.learning-heading{display:flex;align-items:center;justify-content:space-between;gap:var(--space-xl);margin:0 0 var(--space-xl);min-width:0}
.learning-heading>div{min-width:0}.learning-heading h1{font-size:clamp(26px,3vw,36px);overflow-wrap:anywhere}
.learning-heading p{font-size:var(--text-sm);margin-top:var(--space-sm);max-width:52ch}
.learning-search.search{flex:0 1 360px;margin:0;min-width:0;padding:4px 4px 4px 12px;gap:var(--space-sm)}
.learning-search.search input{min-height:44px;padding:8px 0}.learning-search.search .btn{min-height:44px;padding:8px 12px;flex-shrink:0}
.section-selector{display:flex;align-items:stretch;gap:var(--space-xs);overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--color-rule) var(--color-paper);border-bottom:1px solid var(--color-rule);padding:4px 3px 8px;margin-bottom:var(--space-xl);min-width:0}
.section-tab{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;min-height:54px;padding:12px 18px;border:1px solid var(--color-transparent);border-radius:4px 4px 0 0;background:var(--color-transparent);color:var(--color-muted);font-size:var(--text-sm);font-weight:500;white-space:nowrap;text-decoration:none}
.section-tab-symbol{font:500 20px var(--font-japanese);color:inherit}.section-tab svg{width:15px;height:15px;flex-shrink:0}
.section-tab.is-selected{background:var(--color-surface);color:var(--color-ink);border-color:var(--color-rule);box-shadow:inset 0 -3px var(--color-accent);font-weight:700}
.section-tab:focus-visible,.section-tab.is-focus{outline:2px solid var(--color-focus);outline-offset:1px}
.section-tab:active,.section-tab.is-active{background:var(--color-paper-3);color:var(--color-ink)}
.section-tab[aria-disabled=true]{opacity:.55;cursor:not-allowed;border-style:dashed}
.section-tab[aria-busy=true]{cursor:wait;border-style:dotted}
.section-tab[data-state=error]{border-color:var(--color-error);color:var(--color-error)}
.section-tab[data-state=success]{border-color:var(--color-success);color:var(--color-success)}
.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-lg);min-width:0;margin-bottom:var(--space-md)}
.section-heading>div{min-width:0}.section-heading h2{font-size:var(--text-xl);overflow-wrap:anywhere}.section-heading p{margin-top:var(--space-xs);font-size:var(--text-sm)}
.section-heading>.badge{flex-shrink:0;margin-top:4px}
.section-tabs.chips{margin:0 0 var(--space-lg);gap:0 28px;display:flex;flex-wrap:wrap}
.section-tabs .chip{white-space:nowrap;font-size:var(--text-sm)}
@media(hover:hover){.section-tab:hover,.section-tab.is-hover{background:var(--color-paper-2);color:var(--color-ink)}}
@media(max-width:767px){
 .learning-heading{align-items:stretch;flex-direction:column;gap:var(--space-md);margin-bottom:var(--space-lg)}
 .learning-search.search{flex:auto;width:100%}
 .section-selector{margin-bottom:var(--space-lg)}
 .section-tab{padding:10px 14px;min-height:48px}
 .section-heading{flex-direction:column;gap:var(--space-sm)}
 .section-heading>.badge{order:-1;margin:0}
 .section-tabs.chips{gap:0 20px}
 .section-tabs .chip{font-size:13px}
}

/* Hallmark ? pre-emit critique: P4 H5 E4 S5 R4 V4
   Dynamic package workspace: package names above three sibling content tabs. */
.package-toolbar,.package-heading,.package-quiz {display:flex;align-items:center;justify-content:space-between;gap:24px}
.package-toolbar {margin:24px 0 12px}
.package-toolbar .eyebrow {margin:0;color:var(--color-muted);font-size:12px;letter-spacing:.12em}
.package-tabs.section-selector {gap:var(--space-xs);border-bottom:1px solid var(--color-rule);padding:4px 3px 8px;background:var(--color-transparent);border-radius:0;margin:0 0 28px;overflow-x:auto;flex-wrap:nowrap}
.package-tabs .section-tab {flex:0 0 auto;min-width:76px;min-height:48px;justify-content:center;border:0;border-radius:6px;padding:12px 20px;white-space:nowrap;background:var(--color-transparent);color:var(--color-muted)}
.package-tabs .section-tab::after {display:none}
.package-tabs .section-tab:hover {background:var(--color-transparent);color:var(--color-ink)}
.package-tabs .section-tab.is-selected {background:var(--color-surface);color:var(--color-ink);border-color:var(--color-rule);box-shadow:inset 0 -3px var(--color-accent)}
.package-tabs .section-tab small {font-size:10px;margin-left:6px}
.package-heading {align-items:flex-start;margin:0 0 24px}
.package-heading h2 {margin:0 0 6px;font-size:32px;overflow-wrap:anywhere}
.package-heading p {margin:0 0 8px;color:var(--color-muted)}
.package-heading small {color:var(--color-muted)}
.package-content-tabs {gap:0;border-bottom:1px solid var(--color-rule);margin:20px 0 28px;padding:0;display:flex;flex-wrap:nowrap;overflow-x:auto}
.package-content-tabs .chip {background:var(--color-transparent);border:0;border-bottom:3px solid var(--color-transparent);border-radius:0;padding:14px 20px;margin:0;white-space:nowrap;color:var(--color-muted)}
.package-content-tabs .chip.active {background:var(--color-transparent);border-bottom-color:var(--color-accent);color:var(--color-ink);font-weight:700}
.package-content-tabs .chip:hover {background:var(--color-paper-2)}
.package-quiz {padding:28px 0;border-bottom:1px solid var(--color-rule)}
.package-quiz-copy {flex:1;min-width:0}
.package-quiz h3 {margin:0 0 8px}.package-quiz p {margin:0;color:var(--color-muted)}
.danger-link {color:var(--color-error)}.danger {background:var(--color-error);border-color:var(--color-error)}
.editor-delete {margin:24px 0}.delete-confirm {max-width:720px}.delete-confirm h2 {overflow-wrap:anywhere}
.delete-confirm .inline-actions {margin-top:24px}
@media(max-width:767px){
 .package-heading {align-items:flex-start;flex-direction:column;gap:16px}
 .package-quiz {align-items:flex-start;flex-wrap:wrap;gap:16px}
 .package-quiz form {flex-basis:100%}
 .package-toolbar {gap:12px}.package-toolbar .btn {font-size:12px;padding:10px 12px}
 .package-tabs .section-tab {min-width:64px;padding:12px 16px}
 .package-heading h2 {font-size:28px}.package-content-tabs .chip {padding:12px 15px;font-size:13px}
}

/* Keep compound kana previews within their existing tile. */
.lesson-symbol.symbol-combination{font-size:28px;white-space:nowrap}
@media(max-width:700px){.lesson-symbol.symbol-combination{font-size:20px}}

/* Lesson catalog artwork uses the same fixed track as the former symbol. */
.lesson-thumbnail{display:block;width:76px;height:84px;flex-shrink:0;object-fit:cover;border:1px solid var(--color-rule);border-radius:3px}
.lesson-row-copy{min-width:0;overflow-wrap:anywhere}
.lesson-symbol.symbol-long{font-size:18px;line-height:1.4;padding:var(--space-xs);white-space:normal;overflow-wrap:anywhere;overflow:clip}
.lesson-symbol svg{width:24px;height:24px}
@media(max-width:700px){.lesson-thumbnail{width:48px;height:62px}.lesson-symbol.symbol-long{font-size:14px}}