:root{--brand:#f6cb38;--brand-hover:#e8b923;--brand-ink:#624900;--brand-soft:#fff5ce;--secondary:#526b86;--secondary-ink:#3d5269;--secondary-soft:#e9eff5;--secondary-hover:#dce6ef;--assistant-surface:var(--secondary-soft);--assistant-reply:var(--paper);--assistant-question:var(--brand);--assistant-shadow:0 .75rem 2.5rem #3d526926;--motion-fast:.14s;--motion-standard:.22s;--motion-panel:.28s;--motion-exit:.16s;--motion-ease-effects:cubic-bezier(.2, 0, 0, 1);--motion-ease-spatial:cubic-bezier(.22, .8, .22, 1);--motion-enter-offset:.5rem;--ink:#2d2a20;--muted:#646050;--line:#ded9cb;--control-border:#8a8068;--paper:#fff;--bg:#faf9f4;--success:#2c6845;--success-soft:#eaf4ec;--warning:#80500d;--warning-soft:#fff1df;--danger:#a33225;--danger-soft:#fff5f2;--radius:16px;--clay-radius:24px;--clay-button-radius:18px;--clay-button-shadow:inset 0 0 0 2px #ffffff50, 0 4px 8px #62490024;--clay-button-pressed-shadow:inset 0 0 0 2px #ffffff30, 0 1px 3px #62490024;--clay-panel-shadow:inset 0 0 0 2px #ffffff90, 0 5px 18px #6249000c;--text-small:.875rem;--text-body:1rem;--text-child:1.125rem;--select-inset:1rem;--select-icon-size:1.25rem;--select-text-gap:.75rem;--select-border-width:1px;font-synthesis:none;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;font-size:100%;font-weight:400;line-height:1.75}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{color:inherit;cursor:pointer;background:0 0;border:0}button:disabled{cursor:not-allowed;color:var(--muted);border-color:var(--control-border);background:#eeeae0}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{word-break:normal;overflow-wrap:break-word;line-break:strict;text-wrap:balance;font-weight:700;line-height:1.5}input,textarea,select{min-width:0;color:var(--ink)}input::placeholder,textarea::placeholder{color:var(--muted);opacity:1}input[type=checkbox]{accent-color:var(--secondary-ink);flex-shrink:0;width:22px;height:22px}svg{flex-shrink:0}button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--secondary-ink);outline-offset:4px}::selection{background:var(--brand);color:var(--ink)}.skip-link{z-index:300;background:var(--brand);color:var(--ink);border:2px solid var(--brand-ink);border-radius:8px;padding:12px 20px;position:fixed;top:12px;left:16px;transform:translateY(-180%)}.skip-link:focus{transform:translateY(0)}.app-shell{grid-template-columns:15.5rem minmax(0,1fr);min-height:100vh;display:grid}.sidebar{background:var(--paper);border-right:1px solid var(--line);z-index:40;flex-direction:column;width:15.5rem;height:100dvh;padding:32px 16px 20px;display:flex;position:fixed;overflow-y:auto}.sidebar>*{flex-shrink:0}.sidebar>.brand{margin-block-end:1.5rem}.brand{letter-spacing:.04em;white-space:nowrap;align-items:center;gap:8px;min-height:48px;font-size:1.875rem;font-weight:800;display:flex}.brand small{font-size:var(--text-small);letter-spacing:0;color:var(--muted);margin-top:2px;font-weight:400;line-height:1.5;display:block}.sidebar nav{flex-direction:column;gap:8px;display:flex}.nav-item{min-height:48px;color:var(--muted);border-radius:10px;align-items:center;gap:10px;padding:12px;font-size:1rem;line-height:1.5;display:flex}.nav-item:hover{background:var(--bg);color:var(--ink)}.nav-item.active{background:var(--secondary-soft);color:var(--secondary-ink);outline:1px solid var(--secondary-ink);outline-offset:-1px;font-weight:700}.nav-selected{color:var(--secondary-ink);margin-left:auto}.sidebar-bottom{margin-top:auto;padding-top:36px}.sidebar-note{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:18px 16px}.eyebrow{color:var(--brand-ink);font-size:var(--text-small);letter-spacing:.02em;align-items:center;gap:7px;font-weight:700;display:inline-flex}.sidebar-note p{font-size:var(--text-small);color:var(--muted);margin:8px 0 16px;line-height:1.8}.sidebar-note>small{font-size:var(--text-small);color:var(--muted);margin:8px 0;display:block}.sidebar-note>a{min-height:44px;font-size:var(--text-small);color:var(--secondary-ink);border-top:1px solid var(--line);justify-content:space-between;align-items:center;margin-top:12px;padding-top:10px;font-weight:700;display:flex}.sidebar-footer{font-size:var(--text-small);color:var(--muted);flex-wrap:wrap;align-items:center;gap:6px;margin:22px 6px 0;display:flex}.sidebar-footer span{margin-left:auto}.app-body{grid-column:2;min-width:0}.topbar{border-bottom:1px solid var(--line);background:var(--paper);justify-content:space-between;align-items:center;gap:16px;min-height:80px;padding:14px 36px;display:flex}.topbar-start,.topbar-actions{align-items:center;min-width:0;display:flex}.topbar-actions>a>svg{flex-shrink:0}.topbar-actions{gap:14px}.child-mode-link{color:var(--ink);font-size:var(--text-small);background:var(--secondary-soft);border:1px solid var(--secondary-ink);white-space:nowrap;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 14px;font-weight:700;display:flex}.child-mode-link:hover{background:var(--secondary-hover)}.icon-button{min-width:44px;min-height:44px;color:var(--muted);border-radius:8px;justify-content:center;align-items:center;display:inline-flex}.icon-button:hover{background:var(--secondary-soft);color:var(--ink)}.avatar{width:44px;height:44px;color:var(--ink);border:2px solid #fff;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:1rem;font-weight:700;display:inline-flex}.avatar-small{width:36px;height:36px;font-size:var(--text-small)}.demo-strip{min-height:44px;font-size:var(--text-small);color:var(--muted);border-bottom:1px solid var(--line);background:#f2efe5;flex-wrap:wrap;align-items:center;gap:8px 20px;padding:10px 36px;display:flex}.demo-strip>span:first-child{color:var(--ink);align-items:center;gap:8px;font-weight:600;display:flex}.demo-strip>a{text-underline-offset:4px;white-space:nowrap;align-items:center;gap:4px;min-height:44px;margin-left:auto;text-decoration:underline;display:flex}.demo-strip.has-error{background:var(--warning-soft);color:var(--warning)}.main-content{--page-inline-gutter:36px;max-width:1600px;padding:36px var(--page-inline-gutter) 64px;min-height:calc(100vh - 210px);margin:auto}.main-footer{border-top:1px solid var(--line);font-size:var(--text-small);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px 24px;max-width:1600px;margin:auto;padding:24px 36px;display:flex}.page-head{justify-content:space-between;align-items:center;gap:24px;margin-bottom:32px;display:flex}.page-head>div{min-width:0}.page-head h1{letter-spacing:.02em;font-size:2rem}.page-head p{color:var(--muted);max-width:44em;margin-top:12px;font-size:1rem}.button{text-align:center;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;min-height:48px;padding:11px 18px;font-size:1rem;font-weight:700;line-height:1.5;display:inline-flex}.button-primary{color:var(--ink);background:var(--brand);border-color:var(--brand-ink)}.button-primary:hover:not(:disabled){background:var(--brand-hover)}.button-secondary{color:var(--ink);background:var(--paper);border-color:var(--control-border)}.button-secondary:hover:not(:disabled){background:var(--bg)}.button-soft{background:var(--secondary-soft);color:var(--secondary-ink);border-color:#0000}.button-soft:hover:not(:disabled){background:var(--secondary-hover)}.full-width{width:100%}.text-link{color:var(--secondary-ink);min-height:44px;font-size:var(--text-small);text-underline-offset:4px;align-items:center;gap:6px;font-weight:700;line-height:1.6;text-decoration:underline;display:inline-flex}.text-link:hover{text-decoration-thickness:2px}.action-link{background:var(--secondary-soft);min-width:44px;max-width:100%;min-height:44px;color:var(--ink);font-size:var(--text-body);text-align:left;overflow-wrap:anywhere;border:0;border-radius:8px;flex-wrap:wrap;justify-content:flex-start;align-items:center;gap:8px 12px;padding:8px 14px;font-weight:600;line-height:1.6;text-decoration:none;display:inline-flex}.action-link:hover{background:var(--secondary-hover)}.content-link{background:var(--paper);border-radius:12px;min-width:44px;min-height:44px;padding:16px 48px 16px 16px;text-decoration:none;display:block;position:relative}.content-link:hover{background:var(--secondary-soft)}.content-link>.content-link-cue{width:1.125rem;height:1.125rem;color:var(--muted);position:absolute;top:50%;right:16px;transform:translateY(-50%)}.muted{color:var(--muted)}.small{font-size:var(--text-small)}.pill{background:var(--secondary-soft);color:var(--secondary-ink);font-size:var(--text-small);border-radius:6px;align-items:center;gap:6px;padding:4px 10px;font-weight:500;line-height:1.5;display:inline-flex}.pill.quiet{color:var(--muted);background:#f0eee6}.pill.warm{background:var(--secondary-soft);color:var(--secondary-ink)}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);min-width:0;padding:24px}.section-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:20px;display:flex}.section-heading h2{flex-wrap:wrap;align-items:center;gap:8px;font-size:1.25rem;display:flex}.section-heading h3{font-size:1.125rem}.worksheet-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));gap:20px;display:grid}.worksheet-card{background:var(--paper);border:1px solid var(--line);border-radius:14px;min-width:0;position:relative;overflow:hidden}.worksheet-card:hover{border-color:var(--control-border);box-shadow:0 5px 20px #2d2a2010}.worksheet-cover{border-bottom:1px solid var(--line);height:190px;display:block;position:relative;overflow:hidden}.favorite-button{width:44px;height:44px;color:var(--muted);z-index:3;border:1px solid var(--control-border);background:#fff;border-radius:50%;justify-content:center;align-items:center;display:flex;position:absolute;top:8px;right:8px}.favorite-button:hover,.favorite-button.is-saved{color:var(--secondary-ink);background:var(--secondary-soft);border-color:var(--secondary-ink)}.worksheet-card-body{padding:18px}.worksheet-card-body>a{align-items:center;min-height:44px;display:flex}.worksheet-card h3{font-size:1rem;line-height:1.65}.worksheet-author{font-size:var(--text-small);color:var(--muted);align-items:center;gap:6px;margin-top:12px;display:flex}.worksheet-card-footer{color:var(--muted);font-size:var(--text-small);border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:14px;padding-top:12px;display:flex}.worksheet-card-footer>span{align-items:center;gap:4px;display:flex}.worksheet-card-footer small{font-size:inherit;color:inherit}.theme-garden{--theme-accent:#9eae85;--theme-background:#edf1e5;background-color:#edf1e5}.theme-space{--theme-accent:#a5b5c6;--theme-background:#eaf0f3;background-color:#eaf0f3}.theme-dinosaur{--theme-accent:#c7b38f;--theme-background:#f4efdf;background-color:#f4efdf}.theme-simple{--theme-accent:#b1b7a5;--theme-background:#f0f1e9;background-color:#f0f1e9}.library-search{background:var(--paper);border:1px solid var(--control-border);color:var(--muted);border-radius:12px;align-items:center;gap:12px;margin-bottom:28px;padding:12px 16px;display:flex}.library-search:focus-within{outline:3px solid var(--secondary-ink);outline-offset:3px}.library-search input{background:0 0;border:0;outline:none;flex:1;width:100%;min-height:44px;font-size:1rem}.library-search input:focus-visible{outline:none}.library-search kbd{display:none}.library-filters{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px;display:flex}.filter-chips{background:0 0;border:0}.filter-chip{font-size:var(--text-small);min-height:44px;padding:8px 12px;line-height:1.5}.support-filter{min-height:44px;font-size:var(--text-small);color:var(--muted);cursor:pointer;align-items:center;gap:8px;display:flex}.support-filter input{margin:0}.results-heading{font-size:var(--text-small);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;display:flex}.results-heading strong{color:var(--ink);margin-right:3px;font-size:1.125rem}.results-heading label{align-items:center;gap:10px;min-width:0;max-width:100%;display:flex}.results-heading .select-control{max-inline-size:15rem}.library-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,16.875rem),1fr));gap:24px}.worksheet-learning-scope{font-size:var(--text-body);color:var(--muted);margin-top:8px}.creation-scope-note{flex-wrap:wrap;align-items:center;gap:12px 20px;margin-bottom:24px;display:flex}.library-grid .worksheet-cover{height:220px}.sample-note{font-size:var(--text-small);color:var(--muted);align-items:flex-start;gap:8px;margin-top:28px;display:flex}.sample-note svg{margin-top:5px}.empty-state{text-align:center;color:var(--brand-ink);flex-direction:column;align-items:center;gap:16px;padding:48px 24px;display:flex}.empty-state h3{color:var(--ink);font-size:1.25rem}.empty-state p{max-width:32em;color:var(--muted);font-size:1rem}.create-layout{grid-template-columns:minmax(0,1fr) minmax(0,.85fr);align-items:start;gap:32px;display:grid}.create-form{padding:28px}.subject-options{grid-template-columns:1fr 1fr;gap:10px;margin-bottom:24px;display:grid}.subject-option{border:1px solid var(--control-border);color:var(--muted);text-align:left;border-radius:10px;align-items:center;gap:8px;min-height:52px;padding:12px;font-size:1rem;display:flex}.subject-option>span{text-align:center;width:26px;color:var(--secondary-ink);flex-shrink:0;font-size:1.25rem}.subject-option>svg{margin-left:auto}.subject-option.active{background:var(--secondary-soft);border:2px solid var(--secondary-ink);color:var(--ink);padding:11px;font-weight:700}.field-label{color:var(--ink);flex-direction:column;gap:10px;margin-top:20px;font-size:1rem;font-weight:600;display:flex}.field-label>input,.field-label>textarea,.review-form textarea{border:1px solid var(--control-border);background:var(--paper);border-radius:8px;width:100%;min-height:48px;padding:12px;font-size:1rem;line-height:1.75}.field-label textarea{resize:vertical}.field-label>.optional{font-size:var(--text-small);color:var(--muted);margin-top:-8px;font-weight:400}.field-label>small{font-size:var(--text-small);color:var(--muted);font-weight:400}.segmented-control{flex-wrap:wrap;gap:6px;display:flex}.segmented-control button{border:1px solid var(--control-border);min-width:48px;min-height:48px;color:var(--muted);border-radius:8px;flex:4rem;padding:8px;font-size:1rem}.segmented-control button.active{border:2px solid var(--secondary-ink);background:var(--secondary-soft);color:var(--secondary-ink);padding:7px;font-weight:700}.support-toggle{background:var(--bg);cursor:pointer;border-radius:10px;justify-content:space-between;align-items:center;gap:16px;margin-top:20px;padding:18px 16px;display:flex;position:relative}.support-toggle strong{color:var(--ink);align-items:center;gap:8px;font-size:1rem;display:flex}.support-toggle small{font-size:var(--text-small);color:var(--muted);margin-top:6px;display:block}.support-toggle input{opacity:0;position:absolute;right:16px}.toggle-visual{border:1px solid var(--control-border);background:#d5cfc0;border-radius:16px;flex-shrink:0;width:44px;height:28px;position:relative}.toggle-visual:after{content:"";background:var(--paper);border:1px solid var(--control-border);border-radius:50%;width:20px;height:20px;position:absolute;top:3px;left:3px}.support-toggle input:checked+.toggle-visual{background:var(--secondary-ink);border-color:var(--secondary-ink)}.support-toggle input:checked+.toggle-visual:after{border-color:var(--secondary-ink);left:19px}.support-toggle input:focus-visible+.toggle-visual{outline:3px solid var(--secondary-ink);outline-offset:4px}.form-hint{font-size:var(--text-small);color:var(--muted);margin-top:18px;line-height:1.8}.generate-button{min-height:52px;margin-top:24px}.form-bottom-note{font-size:var(--text-small);color:var(--muted);margin-top:12px}.create-preview{min-width:0;position:sticky;top:24px}.generated-preview{border:1px solid var(--line);background:#f2efe5;border-radius:12px;padding:16px}.generation-checks{color:var(--secondary-ink);font-size:var(--text-small);flex-wrap:wrap;gap:8px 16px;margin:20px 0;display:flex}.generation-checks>span{align-items:center;gap:5px;display:flex}.generated-preview>p{font-size:var(--text-small);color:var(--muted);margin-top:12px}.back-link{min-height:44px;color:var(--secondary-ink);font-size:var(--text-small);text-underline-offset:4px;align-items:center;gap:8px;margin-bottom:20px;text-decoration:underline;display:inline-flex}.detail-layout{grid-template-columns:minmax(0,1fr) 350px;align-items:start;gap:24px;display:grid}.detail-paper-column{min-width:0}.paper-tools{font-size:var(--text-small);color:var(--muted);flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:12px;display:flex}.paper-tools>span,.paper-tools label{align-items:center;gap:8px;min-height:44px;display:flex}.paper-tools label{margin-left:auto}.detail-paper{border:1px solid var(--line);background:#f0ede3;border-radius:12px;min-width:0;padding:16px}.detail-info h1{margin:14px 0 20px;font-size:1.5rem}.detail-author{flex-wrap:wrap;align-items:center;gap:8px;font-size:1rem;display:flex}.detail-author small{color:var(--muted);font-size:var(--text-small);margin-top:4px;display:block}.detail-info>p{color:var(--muted);margin:20px 0;font-size:1rem}.worksheet-specs{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:0;padding:16px 0}.worksheet-specs>div{font-size:var(--text-small);grid-template-columns:5em minmax(0,1fr);gap:12px;padding:6px 0;display:grid}.worksheet-specs dt{color:var(--muted)}.worksheet-specs dd{color:var(--ink);margin:0}.verified-label{font-size:var(--text-small);color:var(--muted);align-items:center;gap:7px;margin:20px 0;display:flex}.detail-info>.button+.button{margin-top:12px}.detail-secondary-actions{flex-direction:column;gap:8px;padding-top:16px;display:flex}.detail-secondary-actions>a,.detail-secondary-actions>button{background:var(--secondary-soft);min-height:44px;color:var(--secondary-ink);font-size:var(--text-body);text-align:left;border-radius:8px;align-items:center;gap:8px;padding:8px 12px;line-height:1.6;text-decoration:none;display:flex}.detail-secondary-actions>:is(a,button):hover{background:var(--secondary-hover)}.detail-sidebar{flex-direction:column;gap:24px;min-width:0;display:flex}.detail-reviews h3{margin-bottom:16px;font-size:1.125rem}.review-quote{color:var(--muted);font-size:1rem}.detail-reviews>small{font-size:var(--text-small);color:var(--muted);margin-top:12px;display:block}.detail-reviews>.text-link{margin-top:12px}.review-form{flex-direction:column;gap:12px;margin-top:16px;display:flex}.review-questions h2{font-size:1.25rem}.pending-question{border-top:1px solid var(--line);margin-top:24px;padding-top:24px}.pending-question h3{letter-spacing:.05em;margin:20px 0;font-size:2rem}.pending-question .button{margin-top:20px}.review-rule{color:var(--muted);background:var(--bg);border-radius:10px;gap:10px;margin-top:24px;padding:16px;display:flex}.review-rule p{font-size:var(--text-small)}.review-done{color:var(--success);text-align:center;flex-direction:column;align-items:center;gap:20px;padding:32px 0;display:flex}.review-done h3{font-size:1.25rem}.review-done p{color:var(--muted);font-size:1rem}.demo-settings{flex-wrap:wrap;align-items:center;gap:28px;margin-top:32px;display:flex}.demo-settings>div:first-child{flex:420px}.demo-settings h2{margin-bottom:12px;font-size:1.25rem}.demo-settings p{color:var(--muted);font-size:1rem}.demo-settings p+p{margin-top:12px}.reset-confirm{max-width:300px}.reset-confirm .text-link{margin:12px}.reset-confirm p{margin-bottom:16px}.sample-preview{position:relative;overflow:hidden}.sample-preview .worksheet-question:nth-child(n+3){visibility:hidden}.sample-preview-overlay{text-align:center;color:var(--ink);border:1px dashed var(--control-border);z-index:10;background:#fff;border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:20px;display:flex;position:absolute;inset:48% 24px 24px}.sample-preview-overlay strong{font-size:1.125rem}.sample-preview-overlay p{color:var(--muted);font-size:1rem}.add-child-form>.button{margin-top:24px}.manual-grading-notice{background:var(--warning-soft);font-size:var(--text-small);color:var(--warning);border-radius:10px;margin:0 0 20px;padding:16px}.child-app{background:var(--bg);min-height:100vh}.child-header{background:var(--paper);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;min-height:90px;padding:20px 32px;display:flex}.brand-small{font-size:1.75rem}.child-app .icon-button{min-width:48px;min-height:48px}.child-header-center{font-size:var(--text-child);color:var(--muted);align-items:center;gap:10px;display:flex}.child-parent-button{border:1px solid var(--control-border);min-height:48px;font-size:var(--text-small);color:var(--muted);border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:12px;display:flex}.child-home{max-width:1120px;margin:auto;padding:48px 32px}.child-welcome{margin-bottom:36px;padding-right:170px;position:relative}.child-welcome h1{letter-spacing:.02em;margin-bottom:16px;font-size:2rem}.child-welcome p{color:var(--muted);font-size:1.25rem}.child-assignment-grid{grid-template-columns:1fr 1fr;gap:24px;display:grid}.child-assignment-card{text-align:left;border:1px solid var(--control-border);border-radius:16px;align-items:center;gap:24px;min-height:270px;padding:24px;display:flex}.child-card-sheet{flex-shrink:0;width:125px;height:184px;overflow:hidden;transform:rotate(-5deg)}.child-assignment-card 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var(--control-border);background:var(--paper);border-radius:5px;flex-direction:column;justify-content:center;gap:10px;width:74px;height:96px;padding:16px;display:flex;position:relative;transform:rotate(-5deg)}.submit-tray i{background:var(--control-border);height:1px;display:block}.submit-confirm>p{margin-bottom:20px}.writing-stage-controls button{justify-content:center;align-items:center;display:inline-flex}.writing-lock-note{align-items:center;display:inline-flex}.child-workspace-heading{justify-content:flex-end}.writing-mode-label{margin-right:auto}.creation-saved-status{color:var(--success);margin:0 0 .75rem;font-size:1rem;line-height:1.7}.detail-delivery-label{overflow-wrap:anywhere;min-inline-size:0}