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var(--bg-soft), var(--surface));padding:clamp(1rem,3vw,2.2rem);position:relative;overflow:hidden}[data-astro-cid-7isclnpg][data-book-ready] .book-stage-shell[data-astro-cid-7isclnpg]:before{content:"";z-index:-1;opacity:.24;background-image:radial-gradient(circle, var(--brand) .7px, transparent .8px);background-size:16px 16px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000,#0000 85%);mask-image:linear-gradient(#000,#0000 85%)}[data-astro-cid-7isclnpg][data-book-ready] .book-stage[data-astro-cid-7isclnpg]{border-radius:var(--radius);perspective:2400px;width:min(100%,68rem);height:clamp(31rem,56vw,39rem);transform-style:preserve-3d;touch-action:pan-y;cursor:grab;outline:none;margin-inline:auto;display:block;position:relative}[data-astro-cid-7isclnpg][data-book-ready].book-swiping .book-stage[data-astro-cid-7isclnpg]{cursor:grabbing}[data-astro-cid-7isclnpg][data-book-ready] .book-stage[data-astro-cid-7isclnpg]:focus-visible{outline:2px solid var(--brand);outline-offset:8px}[data-astro-cid-7isclnpg][data-book-ready] .book-stage[data-astro-cid-7isclnpg]:before{content:"";z-index:20;background:linear-gradient(to bottom, transparent, color-mix(in oklab, var(--text) 18%, transparent) 8% 92%, transparent);width:2px;box-shadow:0 0 18px color-mix(in oklab, var(--text) 14%, transparent);pointer-events:none;position:absolute;top:1%;bottom:1%;left:50%;transform:translate(-50%)}[data-astro-cid-7isclnpg][data-book-ready] .book-board[data-astro-cid-7isclnpg],[data-astro-cid-7isclnpg][data-book-ready] .book-sheet[data-astro-cid-7isclnpg]{width:50%;height:100%;position:absolute;top:0}[data-astro-cid-7isclnpg][data-book-ready] .book-sheet[data-astro-cid-7isclnpg]{display:block}[data-astro-cid-7isclnpg][data-book-ready] .book-board[data-astro-cid-7isclnpg]{border:1px solid var(--border);background:var(--surface);text-align:center;flex-direction:column;justify-content:center;align-items:center;padding:clamp(1.5rem,4vw,3rem);display:flex}[data-astro-cid-7isclnpg][data-book-ready] .book-board-left[data-astro-cid-7isclnpg]{border-radius:var(--radius) 0 0 var(--radius);color:var(--muted);left:0}[data-astro-cid-7isclnpg][data-book-ready] .book-board-left[data-astro-cid-7isclnpg] span[data-astro-cid-7isclnpg]{aspect-ratio:1;border:1px solid var(--border);width:4rem;color:var(--brand);border-radius:50%;place-items:center;margin-bottom:1rem;display:grid}[data-astro-cid-7isclnpg][data-book-ready] .book-board-right[data-astro-cid-7isclnpg]{border-radius:0 var(--radius) var(--radius) 0;left:50%}[data-astro-cid-7isclnpg][data-book-ready] .book-board-right[data-astro-cid-7isclnpg]>span[data-astro-cid-7isclnpg]{color:var(--brand)}[data-astro-cid-7isclnpg][data-book-ready] .book-board-right[data-astro-cid-7isclnpg] h2[data-astro-cid-7isclnpg]{margin:1rem 0 .7rem;font-size:clamp(1.7rem,3vw,2.4rem)}[data-astro-cid-7isclnpg][data-book-ready] .book-board-right[data-astro-cid-7isclnpg] p[data-astro-cid-7isclnpg]{max-width:34ch;color:var(--muted)}[data-astro-cid-7isclnpg][data-book-ready] .book-board-right[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{margin-top:1.4rem}[data-astro-cid-7isclnpg][data-book-ready] .book-sheet[data-astro-cid-7isclnpg]{z-index:var(--sheet-stack);transform-origin:0;transform-style:preserve-3d;transition:transform .72s var(--ease);will-change:transform;left:50%}[data-astro-cid-7isclnpg][data-book-ready].book-jumping .book-sheet[data-astro-cid-7isclnpg]{transition:none}[data-astro-cid-7isclnpg][data-book-ready] .book-sheet[data-astro-cid-7isclnpg].is-turned{transform:rotateY(-180deg)}[data-astro-cid-7isclnpg][data-book-ready] .book-face[data-astro-cid-7isclnpg]{border:1px solid var(--border);border-radius:0 var(--radius) var(--radius) 0;background:var(--surface);box-shadow:12px 14px 34px -28px color-mix(in oklab, var(--text) 46%, transparent);backface-visibility:hidden;position:absolute;inset:0;overflow:hidden}[data-astro-cid-7isclnpg][data-book-ready] .book-face-front[data-astro-cid-7isclnpg]{transform:rotateY(0)translateZ(.5px)}[data-astro-cid-7isclnpg][data-book-ready] .book-face-back[data-astro-cid-7isclnpg]{border-radius:var(--radius) 0 0 var(--radius);transform:rotateY(180deg)translateZ(.5px)}[data-astro-cid-7isclnpg][data-book-ready] .book-face[data-astro-cid-7isclnpg]:after{content:"";pointer-events:none;background:linear-gradient(to right, color-mix(in oklab, var(--text) 6%, transparent), transparent 12%);position:absolute;inset:0}[data-astro-cid-7isclnpg][data-book-ready] .book-face-back[data-astro-cid-7isclnpg]:after{background:linear-gradient(to left, color-mix(in oklab, var(--text) 6%, transparent), transparent 12%)}@media (width<=900px){.book-session[data-astro-cid-7isclnpg]{grid-template-columns:auto minmax(0,1fr)}.book-session-presets[data-astro-cid-7isclnpg],.book-session-plan[data-astro-cid-7isclnpg]{grid-column:2;justify-content:flex-start}.book-discovery[data-astro-cid-7isclnpg]{grid-template-columns:auto minmax(0,1fr)}.book-action-buttons[data-astro-cid-7isclnpg]{grid-column:1/-1;justify-content:flex-start;margin-left:3.35rem}.book-action-status[data-astro-cid-7isclnpg]{grid-column:2}}@media (width<=720px){.book-tools[data-astro-cid-7isclnpg]{grid-template-columns:1fr}.book-resume[data-astro-cid-7isclnpg]{flex-wrap:wrap;align-items:flex-start}.book-resume[data-astro-cid-7isclnpg] p[data-astro-cid-7isclnpg]{min-width:calc(100% - 3.5rem)}.book-resume[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{margin-left:3.35rem}}@media (width<=620px){.book-chapters[data-astro-cid-7isclnpg]{display:grid}.book-chapters-label[data-astro-cid-7isclnpg]{justify-content:center}}@media (width<=480px){.book-content-search[data-astro-cid-7isclnpg]{grid-template-columns:1fr auto}.book-content-search-field[data-astro-cid-7isclnpg]{grid-area:2/1/auto/-1}.book-content-search[data-astro-cid-7isclnpg] p[data-astro-cid-7isclnpg]{grid-area:1/2}.book-content-search[data-astro-cid-7isclnpg] label[data-astro-cid-7isclnpg]{grid-area:1/1}.book-content-filters[data-astro-cid-7isclnpg]>span[data-astro-cid-7isclnpg]{flex-basis:100%}.book-notebook-actions[data-astro-cid-7isclnpg]{grid-template-columns:1fr}.book-notebook-actions[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{width:100%}.book-notebook-status[data-astro-cid-7isclnpg]{text-align:left}.book-content-chapter[data-astro-cid-7isclnpg]>header[data-astro-cid-7isclnpg]{grid-template-columns:auto minmax(0,1fr)}.book-content-chapter[data-astro-cid-7isclnpg]>header[data-astro-cid-7isclnpg] small[data-astro-cid-7isclnpg]{text-align:left;grid-column:2}.book-contents[data-astro-cid-7isclnpg] a[data-astro-cid-7isclnpg]{grid-template-columns:auto minmax(0,1fr)}.book-content-status[data-astro-cid-7isclnpg]{text-align:left;grid-column:2}.book-resume[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{width:calc(100% - 3.35rem)}.book-session-presets[data-astro-cid-7isclnpg],.book-session-plan[data-astro-cid-7isclnpg]{grid-column:1/-1}.book-session-controls[data-astro-cid-7isclnpg]{grid-template-columns:1fr 1fr;display:grid}.book-session-controls[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{min-width:0}.book-action-buttons[data-astro-cid-7isclnpg]{grid-template-columns:1fr 1fr;margin-left:0;display:grid}.book-action-status[data-astro-cid-7isclnpg]{grid-column:1/-1}.book-controls[data-astro-cid-7isclnpg]{grid-template-columns:1fr 1fr;display:grid}.book-controls[data-astro-cid-7isclnpg] button[data-astro-cid-7isclnpg]{min-width:0}.book-counter[data-astro-cid-7isclnpg]{grid-area:1/1/auto/-1}.book-note-dialog[data-astro-cid-7isclnpg]{width:calc(100vw - 1rem)}.book-note-shell[data-astro-cid-7isclnpg]>header[data-astro-cid-7isclnpg]{grid-template-columns:auto minmax(0,1fr) auto;padding-inline:.8rem}.book-note-editor[data-astro-cid-7isclnpg]{padding:.8rem}.book-note-meta[data-astro-cid-7isclnpg]{flex-direction:column;align-items:flex-end;gap:.25rem}.book-note-actions[data-astro-cid-7isclnpg]{grid-template-columns:1fr 1fr;display:grid}.book-note-actions[data-astro-cid-7isclnpg] .btn[data-astro-cid-7isclnpg]{min-width:0}}.book-page[data-astro-cid-gkng4vpi]{overflow:clip}.book-breadcrumbs[data-astro-cid-gkng4vpi]{color:var(--faint);align-items:center;gap:.55rem;margin-bottom:1.8rem;font-size:.78rem;display:flex}.book-breadcrumbs[data-astro-cid-gkng4vpi] a[data-astro-cid-gkng4vpi]{color:var(--accent-ink);text-underline-offset:4px}.book-heading[data-astro-cid-gkng4vpi]{grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:2rem;display:grid}.book-heading[data-astro-cid-gkng4vpi] .page-lede[data-astro-cid-gkng4vpi]{max-width:52rem;margin-bottom:0}.heading-emblem[data-astro-cid-gkng4vpi]{aspect-ratio:1;border:1px solid color-mix(in oklab, var(--brand) 24%, var(--border));width:clamp(5rem,10vw,7rem);color:var(--brand);background:radial-gradient(circle, color-mix(in oklab, var(--brand) 13%, transparent), transparent 66%), var(--surface);box-shadow:var(--shadow-sm);border-radius:1.5rem;place-items:center;display:grid;transform:rotate(4deg)}.book-empty[data-astro-cid-gkng4vpi]{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-soft);max-width:44rem;margin-top:2rem;padding:2rem}.book-empty[data-astro-cid-gkng4vpi] h2[data-astro-cid-gkng4vpi]{margin-bottom:.65rem;font-size:1.5rem}.book-empty[data-astro-cid-gkng4vpi] p[data-astro-cid-gkng4vpi]{color:var(--muted);margin-bottom:1.2rem}@media (width<=640px){.book-heading[data-astro-cid-gkng4vpi]{grid-template-columns:1fr}.heading-emblem[data-astro-cid-gkng4vpi]{display:none}}