.community-tools-section{margin-top:2rem;container-type:inline-size}.community-tools-header{margin-bottom:.75rem;padding-inline:.25rem}.community-tools-heading{font-size:calc((.875rem) / var(--text-inflation, 1));line-height:1.5;font-weight:600}.community-tools-description{margin-top:.25rem;font-size:calc((.75rem) / var(--text-inflation, 1));line-height:1.65;color:var(--text-muted)}.community-tools-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;overflow:hidden;border:1px solid var(--border);border-radius:1.25rem;background:var(--border)}.community-tools-empty,.community-tools-tool{min-width:0;min-height:6.5rem;padding:1rem 1.25rem}.community-tools-tool{display:flex;flex-direction:column;justify-content:center;text-align:left;background:var(--surface-raised);color:var(--accent);overflow-wrap:anywhere}.community-tools-tool:hover{background:var(--surface-hover)}.community-tools-tool:focus-visible{outline:2px solid 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var(--border)}.welcome-primary{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:48px;padding:13px 28px;border-radius:12px;color:var(--text-inverse);background:var(--accent);font-size:calc((.9375rem) / var(--text-inflation, 1));font-weight:600;transition:background .18s ease}.welcome-primary:hover:not(:disabled){background:var(--accent-strong)}.welcome-primary:disabled{opacity:.45;cursor:not-allowed}.welcome-footer>.welcome-primary{margin-left:auto}.welcome-footer>*{min-width:0}.welcome-footer button{overflow-wrap:anywhere}.welcome-footer svg{flex-shrink:0}.welcome-secondary{min-height:44px;padding:10px 12px;border-radius:10px;color:var(--text-secondary);font-size:calc((.875rem) / var(--text-inflation, 1))}.welcome-secondary:hover{background:var(--surface-hover)}.welcome-body:is([data-step=nickname],[data-step=language],[data-step=avatar]){padding-top:clamp(28px,14vh,140px)}.welcome-body>.welcome-setup-sheet{margin-block:0}.welcome-setup-sheet{width:100%;max-width:520px;margin-inline:auto}.welcome-setup-title{font-size:calc((1.75rem) / var(--text-inflation, 1));line-height:1.4;font-weight:600;text-align:left}.welcome-setup-description{margin-top:20px;font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.9;color:var(--text-secondary)}.welcome-profile-description>p+p{margin-top:16px}.welcome-setup-field{display:block;margin-top:28px;font-size:calc((.875rem) / var(--text-inflation, 1));font-weight:500}.welcome-setup-input{display:block;width:100%;min-height:56px;margin-top:10px;padding:14px 16px;border:1px solid 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p{margin:10px 0 0;font-size:calc((14px) / var(--text-inflation, 1));line-height:1.7;color:var(--text-secondary);overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.forum-world-cover{width:56px;height:56px;flex-shrink:0;object-fit:cover;border-radius:12px}@media (prefers-reduced-motion:reduce){.forum-world-card{transition:none}}.pet-desktop-home{position:absolute;inset:0;overflow-y:auto;overscroll-behavior:contain;container:pet-home/inline-size;color:var(--text-primary);background:var(--background);--pet-ink-accent:var(--accent)}.pet-desktop-home-layout{display:grid;grid-template-columns:minmax(250px,320px) minmax(0,1fr);width:100%;max-width:1160px;min-height:100%;margin-inline:auto;padding:clamp(32px,5vh,64px) clamp(24px,4vw,56px);gap:clamp(32px,4vw,64px);align-items:start}.pet-desktop-identity{display:flex;flex-direction:column;align-items:center;min-width:0;text-align:center;position:sticky;top:32px}.pet-desktop-portrait{position:relative;width:248px;height:248px;display:grid;place-items:center;flex-shrink:0;border-radius:50%;color:var(--pet-ink-accent)}.pet-desktop-growth-ring{position:absolute;inset:0;width:100%;height:100%}.pet-desktop-portrait .pet-desktop-avatar{border-radius:50%!important;border:0!important;overflow:hidden}.pet-desktop-identity h1{font-size:calc((clamp(1.6rem, 2.5cqi, 2.1rem)) / var(--text-inflation, 1));font-weight:650;line-height:1.35;margin-top:24px;max-width:100%;overflow-wrap:anywhere;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.pet-desktop-level{display:inline-flex;gap:8px;padding:6px 4px;color:var(--pet-ink-accent);font-size:calc((.875rem) / var(--text-inflation, 1))}.pet-desktop-level,.pet-desktop-stats{align-items:center;justify-content:center;flex-wrap:wrap;margin-top:12px}.pet-desktop-stats{display:flex;gap:10px 18px;font-size:calc((.8125rem) / var(--text-inflation, 1));color:var(--text-secondary);font-variant-numeric:tabular-nums}.pet-desktop-stats>*{display:inline-flex;align-items:center;gap:6px;overflow-wrap:anywhere}.pet-desktop-stats svg{flex:none}.pet-desktop-greeting{position:relative;margin-top:30px;padding:20px 22px;border-radius:16px;background:var(--surface-raised);color:var(--text-primary);line-height:1.8;overflow-wrap:anywhere}.pet-desktop-greeting,.pet-desktop-primary{width:100%;font-size:calc((1rem) / var(--text-inflation, 1))}.pet-desktop-primary{display:flex;justify-content:center;align-items:center;gap:12px;min-height:52px;padding:14px 20px;margin-top:20px;border-radius:12px;font-weight:600;background:var(--accent);color:var(--accent-foreground,white)}.pet-desktop-primary svg{flex:none}.pet-desktop-primary:hover{filter:brightness(1.08)}.pet-desktop-knowledge{display:flex;flex-direction:column;min-width:0;align-self:start;padding:24px 0 0 clamp(16px,2vw,32px)}.pet-desktop-knowledge-header{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;padding-block:8px 24px;border-bottom:1px solid var(--border)}.pet-desktop-knowledge h2{flex:1 1 220px;min-width:0;font-size:calc((clamp(1.4rem, 2.1cqi, 1.8rem)) / var(--text-inflation, 1));font-weight:650;line-height:1.5;overflow-wrap:anywhere}.pet-desktop-digest,.pet-desktop-digest-empty{padding-block:28px 40px;font-size:calc((1.0625rem) / var(--text-inflation, 1));line-height:1.95;overflow-wrap:anywhere;min-width:0}.pet-desktop-digest{color:var(--text-primary)}.pet-desktop-digest-empty{color:var(--text-secondary);max-width:60ch}.pet-desktop-digest :is(img,video){max-width:100%;height:auto}.pet-desktop-digest :is(pre,.katex-display){max-width:100%;overflow-x:auto}.pet-desktop-home button:focus-visible{outline:2px solid var(--focus-ring,var(--accent));outline-offset:4px}@container pet-home (max-width: 820px){.pet-desktop-home-layout{grid-template-columns:1fr;max-width:680px;gap:32px;padding:28px 24px}.pet-desktop-identity{position:static}.pet-desktop-greeting,.pet-desktop-primary{max-width:360px}.pet-desktop-knowledge{border-left:0;border-top:1px solid var(--border);padding:20px 0 0}}@media (max-height:760px){.pet-desktop-identity{position:static}}.pet-settings-scroll{container:pet-settings/inline-size}.pet-desktop-settings-shell{max-width:940px;margin-inline:auto;padding:36px clamp(24px,4vw,48px) 56px}.pet-desktop-settings-form{min-width:0}.pet-settings-identity{display:flex;align-items:center;gap:28px;padding:28px 32px;background:var(--surface-raised);border-radius:16px}.pet-settings-identity-fields{max-width:520px}.pet-settings-identity-fields>label{font-size:calc((.875rem) / var(--text-inflation, 1));letter-spacing:0;text-transform:none;color:var(--text-secondary)!important}.pet-desktop-settings-shell .pet-settings-section{display:grid;grid-template-columns:160px minmax(0,1fr);gap:28px;padding-top:30px;margin-top:30px}.pet-desktop-settings-shell .pet-settings-section>:first-child{display:block;min-width:0;margin:0}.pet-desktop-settings-shell .pet-settings-section-body{min-width:0}.pet-desktop-settings-shell .pet-settings-section h3{font-size:calc((1rem) / var(--text-inflation, 1));letter-spacing:0;text-transform:none;color:var(--text-primary)!important;margin-bottom:8px}.pet-desktop-settings-shell .pet-settings-section>:first-child>span{display:block;max-width:none!important;text-align:left;font-size:calc((.8125rem) / var(--text-inflation, 1));line-height:1.7}.pet-desktop-settings-shell input[type=text],.pet-desktop-settings-shell textarea{font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.8}.pet-settings-identity input{min-height:46px}.pet-desktop-settings-shell textarea{padding:16px 18px;border-radius:12px}.pet-desktop-settings-shell [role=radiogroup]{border-radius:10px}.pet-desktop-settings-shell [role=radio]{min-height:38px;border-radius:8px}.pet-desktop-settings-shell button:focus-visible{outline:2px solid var(--focus-ring,var(--accent));outline-offset:3px}.pet-settings-save-row{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;padding:24px 0;margin-top:4px}.pet-settings-save-row>div{max-width:65%;line-height:1.7}.pet-settings-save-row>button{min-width:112px;min-height:42px}.pet-settings-danger{margin-top:28px;padding-top:24px;border-top:1px solid var(--border)}.pet-settings-danger>div:first-child{font-size:calc((.875rem) / var(--text-inflation, 1));letter-spacing:0;text-transform:none}.pet-settings-danger p{font-size:calc((.8125rem) / var(--text-inflation, 1));line-height:1.8}.pet-settings-danger button{min-height:40px}@container pet-settings (max-width: 680px){.pet-desktop-settings-shell{padding:24px}.pet-settings-identity{gap:20px;padding:24px}.pet-desktop-settings-shell .pet-settings-section{grid-template-columns:minmax(0,1fr);gap:14px}.pet-settings-danger>div:last-child{align-items:flex-start;flex-direction:column}}.pet-desktop-archive-scroll{padding:32px clamp(24px,4vw,48px)}@media (max-width:900px){.pet-desktop-archive-scroll{padding:24px}}.pet-desktop-avatar-edit{position:absolute;bottom:10px;right:18px;width:34px;height:34px;display:grid;place-items:center;border-radius:50%;background:var(--accent);color:var(--accent-foreground,white);border:3px solid var(--background)}.pet-desktop-portrait:hover .pet-desktop-avatar-edit{transform:scale(1.08)}.pet-avatar-overlay{position:fixed;inset:0;z-index:var(--z-modal,100);background:var(--overlay-strong,rgba(0,0,0,.45));display:grid;place-items:center;padding:20px}.pet-avatar-dialog{width:min(420px,100%);max-height:90dvh;overflow-y:auto;padding:24px;border:1px solid var(--border);border-radius:20px;background:var(--background);color:var(--text-primary);box-shadow:0 20px 60px rgba(0,0,0,.2)}.pet-avatar-dialog footer,.pet-avatar-dialog header{display:flex;align-items:center;justify-content:space-between;gap:12px}.pet-avatar-dialog h2{font-size:calc((1.25rem) / var(--text-inflation, 1));font-weight:600}.pet-avatar-dialog header button{padding:8px}.pet-avatar-preview{display:flex;justify-content:center;padding:24px 0}.pet-avatar-options{display:flex;gap:12px;justify-content:center}.pet-avatar-options button{position:relative;padding:8px;border:1px solid var(--border);border-radius:18px;min-width:0}.pet-avatar-options button[aria-pressed=true]{border-color:var(--accent);background:var(--accent-bg)}.pet-avatar-options button>div{max-width:100%}.pet-avatar-selected{position:absolute;right:4px;bottom:4px;background:var(--background);border-radius:50%}.pet-avatar-upload{width:100%;display:flex;gap:10px;justify-content:center;align-items:center;border:1px solid var(--border);padding:12px;border-radius:10px;margin:20px 0 24px}.pet-avatar-dialog footer{justify-content:flex-end}.pet-avatar-dialog footer button{padding:10px 20px;border-radius:10px}.pet-avatar-save{background:var(--accent);color:var(--accent-foreground,white)}.pet-avatar-dialog button:disabled{opacity:.45;cursor:default}.pet-avatar-dialog button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.pet-avatar-error{color:var(--danger);margin-bottom:16px}.pet-settings-avatar-button{position:relative;flex-shrink:0;border-radius:26%}.pet-settings-avatar-button .pet-desktop-avatar-edit{bottom:-6px;right:-6px}.pet-desktop-help{display:inline-flex;align-items:center;justify-content:center;gap:8px;max-width:100%;min-height:36px;margin-top:20px;padding:6px 12px;border-radius:8px;font-size:calc((.8125rem) / var(--text-inflation, 1));line-height:1.5;color:var(--text-secondary)}.pet-desktop-help svg{flex:none}.pet-desktop-help:hover{background:var(--surface-hover);color:var(--text-primary)}.pet-desktop-faq{position:absolute;inset:0;overflow-y:auto;background:var(--background);color:var(--text-primary)}.pet-desktop-faq-content{max-width:800px;margin-inline:auto;padding:32px clamp(24px,4vw,48px) 64px}.pet-faq-back{display:inline-flex;align-items:center;gap:8px;min-height:36px;padding:4px 8px;margin-left:-8px;border-radius:8px;color:var(--text-secondary);font-size:calc((.8125rem) / var(--text-inflation, 1))}.pet-faq-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:20px 0 28px}.pet-faq-header h1{display:flex;align-items:center;gap:10px;font-size:calc((1.5rem) / var(--text-inflation, 1));line-height:1.4;font-weight:650;color:var(--accent-solid,var(--accent))}.pet-faq-header h1 svg{flex:none}.pet-faq-header p{margin-top:8px;font-size:calc((.875rem) / var(--text-inflation, 1));line-height:1.6;color:var(--text-secondary)}.pet-faq-tools{display:flex;flex:none;gap:2px}.pet-faq-tools button{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;color:var(--text-secondary)}.pet-faq-tools button:disabled{opacity:.35;cursor:default}.pet-faq-back:hover,.pet-faq-tools button:not(:disabled):hover{background:var(--surface-hover);color:var(--text-primary)}.pet-faq-list{border:1px solid var(--border);border-radius:var(--radius-lg,16px);overflow:hidden;background:var(--surface-raised)}.pet-faq-entry+.pet-faq-entry{border-top:1px solid var(--border)}.pet-faq-entry h2{margin:0;font-size:inherit}.pet-faq-entry h2 button{display:flex;align-items:baseline;gap:14px;width:100%;padding:19px 22px;text-align:left}.pet-faq-entry h2 button:hover{background:var(--surface-hover)}.pet-faq-number{flex:none;width:20px;font-size:calc((.75rem) / var(--text-inflation, 1));font-variant-numeric:tabular-nums;color:var(--text-muted)}.pet-faq-question{flex:1;min-width:0;font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.6;font-weight:500;overflow-wrap:anywhere}.pet-faq-entry h2 svg{flex:none;align-self:center;color:var(--text-muted)}.pet-faq-entry button[aria-expanded=true]{color:var(--accent)}.pet-faq-entry button[aria-expanded=true] svg{transform:rotate(90deg)}.pet-faq-answer{padding:0 38px 24px 56px;font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.9;overflow-wrap:anywhere}.pet-faq-answer p{margin:0;white-space:pre-wrap}.pet-faq-answer p+p{margin-top:14px}.pet-desktop-faq button:focus-visible{outline:2px solid var(--accent);outline-offset:-3px}.pet-archive-month{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:12px;width:100%;min-height:62px;padding:14px 4px;text-align:left;background:var(--background);border-bottom:1px solid var(--border);color:var(--text-primary)}.pet-archive-month-label{font-size:calc((1.0625rem) / var(--text-inflation, 1));font-weight:600}.pet-archive-month-count{font-size:calc((.8125rem) / var(--text-inflation, 1));color:var(--text-secondary);font-variant-numeric:tabular-nums}.pet-archive-month-preview{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:calc((.8125rem) / var(--text-inflation, 1));color:var(--text-secondary)}.pet-archive-month svg{flex:none;color:var(--text-secondary)}.pet-archive-month:hover{color:var(--accent)}.pet-insight-list,.pet-session-list{display:flex;flex-direction:column;gap:16px;padding-block:20px 28px}.pet-session-row{padding:20px 24px;border-radius:12px}.pet-session-row:hover{outline:1px solid var(--text-muted);outline-offset:-1px}.pet-session-row>div:first-child{flex-wrap:wrap;row-gap:12px}.pet-session-row>div:first-child>div:first-child{flex-wrap:wrap}.pet-session-row .pet-md{font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.85}.pet-session-row button{min-height:36px;min-width:36px}.pet-insight-face{padding:26px 28px 44px;overflow-wrap:anywhere;min-width:0}.pet-insight-face h4{font-size:calc((1.125rem) / var(--text-inflation, 1));line-height:1.6}.pet-insight-face .pet-md{font-size:calc((.9375rem) / var(--text-inflation, 1));line-height:1.85}.pet-insight-face button{min-height:32px;min-width:32px}.pet-insight-face>div:first-child{flex-wrap:wrap}.pet-insight-face .katex-display,.pet-insight-face pre{max-width:100%;overflow-x:auto}.pet-archive-month:focus-visible,.pet-insight-card [role=button]:focus-visible,.pet-session-row:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (prefers-reduced-motion:reduce){.pet-insight-card>div{transition-duration:0s!important}}.empty-classroom{container-type:inline-size;display:flex;flex:1;flex-direction:column;min-width:0;min-height:0;height:100%;overflow:auto;background:var(--chat-bg);color:var(--text-primary)}.empty-classroom__page{flex:none;box-sizing:border-box;width:100%;max-width:1000px;margin:auto;padding:clamp(32px,7cqi,80px) clamp(24px,5cqi,64px)}.empty-classroom__intro{padding-bottom:2.75rem}.empty-classroom__copy{min-width:0}.empty-classroom__title{margin:0;font-size:calc((clamp(2rem, 3.5cqi, 3rem)) / var(--text-inflation, 1));font-weight:650;line-height:1.35;letter-spacing:-.02em;overflow-wrap:anywhere;text-wrap:balance}.empty-classroom__title--finder{color:var(--accent)}.empty-classroom__description{max-width:36rem;margin:1.75rem 0 0;font-size:calc((1.125rem) / var(--text-inflation, 1));line-height:1.85;color:var(--text-secondary);overflow-wrap:anywhere;text-wrap:balance}.empty-classroom__actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.25rem 2.5rem;border-top:1px solid var(--border-strong);padding-top:2.25rem}.empty-classroom__actions button{max-width:100%;min-height:3.75rem;font-size:calc((1.125rem) / var(--text-inflation, 1));font-weight:600;line-height:1.5;overflow-wrap:anywhere;cursor:pointer;transition:background-color .16s,color .16s}.empty-classroom__actions button:focus-visible{outline:2px solid var(--accent);outline-offset:5px}.empty-classroom__primary{flex:0 1 18rem;padding:1rem 1.5rem;border-radius:14px;background:var(--accent);color:var(--text-inverse)}.empty-classroom__primary:hover{background:var(--accent-strong)}.empty-classroom__primary:active{opacity:.88}.empty-classroom__secondary{flex:0 1 auto;padding:.75rem 0;color:var(--accent);text-align:left}.empty-classroom__secondary:hover{text-decoration:underline;text-underline-offset:.3em}.empty-classroom__starter{margin-top:2.75rem}.dark .empty-classroom__primary{background:var(--text-primary);color:var(--text-inverse)}.dark .empty-classroom__primary:hover{background:var(--text-secondary)}.dark .empty-classroom__secondary{color:var(--text-primary)}@container (max-width: 44rem){.empty-classroom__actions{column-gap:2rem}.empty-classroom__primary{flex-basis:100%}}@media (prefers-reduced-motion:reduce){.empty-classroom__actions button{transition:none}}.lesson-start-screen{container:lesson-start/inline-size;display:flex;flex-direction:column;flex:1;min-width:0;min-height:0;color:var(--text-primary);--lesson-start-gutter:clamp(24px,4vw,64px)}.lesson-start-scroll{flex:1;min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:40px var(--lesson-start-gutter);scrollbar-gutter:stable}.lesson-start-content{width:100%;max-width:1120px;margin:0 auto}.lesson-start-header{margin-bottom:2.5rem}.lesson-start-back{display:inline-flex;align-items:center;gap:4px;height:36px;margin:0 0 0 -2px;padding:0 14px 0 8px;border-radius:9999px;font-size:calc((.875rem) / var(--text-inflation, 1));font-weight:500;line-height:1;color:var(--text-secondary);background:color-mix(in srgb,var(--surface-raised) 22%,transparent);border:.5px solid color-mix(in srgb,var(--text-muted) 28%,var(--border));box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 30%,transparent),0 2px 9px rgba(0,0,0,.075);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.lesson-start-back:active{opacity:.6}.lesson-start-info{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:36px;height:36px;border-radius:9999px;color:var(--text-muted);background:color-mix(in srgb,var(--surface-raised) 22%,transparent);border:.5px solid color-mix(in srgb,var(--text-muted) 28%,var(--border));box-shadow:inset 0 1px 0 color-mix(in srgb,#fff 30%,transparent),0 2px 9px rgba(0,0,0,.075)}.lesson-start-info:active{opacity:.6}.lesson-start-launch-mobile{background:var(--accent-solid);color:var(--text-inverse);box-shadow:0 12px 28px -12px var(--accent-solid)}.lesson-start-launch-mobile:disabled{background:var(--surface-raised);color:var(--text-muted);box-shadow:inset 0 0 0 1px var(--border)}.lesson-start-back svg{flex-shrink:0;color:var(--text-muted)}.lesson-start-header h1{font-size:calc((clamp(2rem, 3.6cqi, 2.75rem)) / var(--text-inflation, 1));line-height:1.35;font-weight:650;letter-spacing:-.025em;text-wrap:balance}.lesson-start-header p{margin-top:.75rem;line-height:1.7}.lesson-start-content h2,.lesson-start-header p{font-size:calc((1rem) / var(--text-inflation, 1));color:var(--text-secondary)}.lesson-start-content h2{margin:0 0 1.25rem;line-height:1.5;font-weight:600}.lesson-start-book{padding-bottom:2rem;border-bottom:1px solid var(--border)}.lesson-start-book [data-testid=class-start-textbook]{display:flex;align-items:center;gap:1.5rem}.lesson-start-book-title{display:block;font-size:calc((1.75rem) / var(--text-inflation, 1));font-weight:600;line-height:1.5;letter-spacing:-.015em;overflow-wrap:anywhere}.lesson-start-book-change{flex-shrink:0;min-height:44px;padding:.625rem 1rem;border:1px solid var(--border);border-radius:12px;color:var(--accent);font-size:calc((.9375rem) / var(--text-inflation, 1));font-weight:550}.lesson-start-book-change:hover{background:var(--surface-hover)}.lesson-start-decisions{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:clamp(28px,4cqi,64px);margin-top:2rem}.lesson-start-decisions>section{min-width:0}.lesson-start-companions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem}.lesson-start-companions[data-count="1"]{grid-template-columns:minmax(0,1fr);max-width:20rem}.lesson-start-companions[data-count="2"]{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-start-companion{position:relative;min-width:0;display:flex;flex-direction:column;border:1px solid var(--border);border-radius:16px;background:var(--surface-raised);transition:border-color .16s}.lesson-start-companion[data-selected=true]{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 4%,var(--surface-raised))}.lesson-start-companion:hover{border-color:var(--accent)}.lesson-start-companion__select{position:relative;display:flex;flex:1;flex-direction:column;align-items:center;gap:1.25rem;width:100%;min-width:0;padding:1.75rem .75rem 1.25rem;border-radius:16px 16px 0 0;cursor:pointer}.lesson-start-companion__portrait{display:flex;max-width:100%;padding:3px;border:2px solid transparent;border-radius:28px}.lesson-start-companion__portrait>div{max-width:100%}.lesson-start-companion__name{font-size:calc((1.125rem) / var(--text-inflation, 1));line-height:1.5;font-weight:600;overflow-wrap:anywhere;text-align:center}.lesson-start-companion__select:disabled{cursor:default}.lesson-start-companion__check{position:absolute;top:.625rem;right:.625rem;display:grid;place-items:center;width:20px;height:20px;border-radius:50%;border:1px solid var(--border-strong)}[data-selected=true]>.lesson-start-companion__select .lesson-start-companion__check{background:var(--accent);border-color:var(--accent);color:var(--text-inverse)}.lesson-start-companion__voice{margin:0 .875rem;padding:.875rem 0;border-top:1px solid var(--border)}.lesson-start-companion__voice button{min-height:36px}.lesson-start-paces{display:flex;flex-direction:column;gap:.5rem}.lesson-start-pace-option{display:flex;align-items:baseline;gap:.875rem;width:100%;padding:.875rem 1rem;border-radius:12px;text-align:left;border:1px solid transparent;cursor:pointer}.lesson-start-pace-option[aria-checked=true]{background:var(--accent-soft);border-color:var(--accent-border)}.lesson-start-pace-option:hover{background:var(--surface-hover)}.lesson-start-radio{width:1rem;height:1rem;flex-shrink:0;border:1px solid var(--border-strong);border-radius:50%;align-self:flex-start;margin-top:.3rem}[aria-checked=true]>.lesson-start-radio{border:5px solid var(--accent)}.lesson-start-pace-copy{display:flex;flex-direction:column;min-width:0;gap:.375rem;overflow-wrap:anywhere}.lesson-start-pace-copy>:first-child{font-size:calc((1rem) / var(--text-inflation, 1));font-weight:600;line-height:1.5}.lesson-start-pace-copy>:last-child{font-size:calc((.875rem) / var(--text-inflation, 1));line-height:1.7;color:var(--text-secondary)}.lesson-start-footer{display:flex;flex-shrink:0;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem 2rem;width:calc(100% - var(--lesson-start-gutter) * 2);max-width:1120px;margin:0 auto;padding:1.25rem 0;border-top:1px solid var(--border);max-height:45%;overflow-y:auto}.lesson-start-footer p{flex:1 1 16rem;font-size:calc((.875rem) / var(--text-inflation, 1));line-height:1.7;color:var(--text-secondary)}.lesson-start-launch{display:inline-flex;align-items:center;justify-content:center;flex:0 1 17rem;gap:.75rem;padding:1rem 1.5rem;min-height:56px;border-radius:14px;background:var(--accent);color:var(--text-inverse);font-size:calc((1.0625rem) / var(--text-inflation, 1));font-weight:600;line-height:1.5;cursor:pointer}.lesson-start-launch svg{flex-shrink:0}.lesson-start-launch:hover:not(:disabled){background:var(--accent-strong)}.lesson-start-launch:disabled{opacity:.45;cursor:not-allowed}.lesson-start-screen button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.dark .lesson-start-launch{background:var(--text-primary);color:var(--text-inverse)}.dark .lesson-start-launch:hover:not(:disabled){background:var(--text-secondary)}@container lesson-start (max-width: 1050px){.lesson-start-decisions{grid-template-columns:minmax(0,1fr)}.lesson-start-paces{display:grid;grid-template-columns:repeat(3,minmax(0,1fr))}}@container lesson-start (max-width: 650px){.lesson-start-companions,.lesson-start-companions[data-count="2"]{grid-template-columns:repeat(auto-fit,minmax(min(100%,10rem),1fr))}.lesson-start-paces{display:flex}.lesson-start-book [data-testid=class-start-textbook]{align-items:flex-start;flex-direction:column;gap:1rem}.lesson-start-launch{flex-grow:1}}@media (prefers-reduced-motion:reduce){.lesson-start-companion{transition:none}}.lesson-picker-search::-webkit-search-cancel-button,.lesson-picker-search::-webkit-search-decoration{-webkit-appearance:none;appearance:none;display:none}