:root{--bg:#f6efe4;--surface:#fffbf5e0;--surface-strong:#fffaf2f5;--text:#5f6472;--text-strong:#252938;--muted:#697086;--eyebrow:#7b7f8b;--border:#b69a6f5c;--accent:#2d6b59;--accent-strong:#202735;--shadow-soft:0 24px 70px #3b2a1114;--sans:"Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;--serif:"Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;--mono:"SFMono-Regular", "SF Mono", ui-monospace, Menlo, monospace;color:var(--text);font-synthesis:none;text-rendering:optimizelegibility;-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased;font-family:Avenir Next,Avenir,Segoe UI,sans-serif;line-height:1.5}:root[data-theme=dark]{--bg:#141722;--surface:#1d2231eb;--surface-strong:#23293afa;--text:#adb5c8;--text-strong:#f0eadf;--muted:#97a0b8;--eyebrow:#8f98af;--border:#a78f6747;--accent:#8bb9a7;--accent-strong:#ebe2d4;--shadow-soft:0 22px 64px #00000057}*,:before,:after{box-sizing:border-box}html{background:var(--bg);color:var(--text)}body{background:radial-gradient(circle at top center, #ffe9bb33, transparent 20%), linear-gradient(180deg, #ffffff0f, transparent 20%), var(--bg);min-height:100vh;margin:0}a,button,input,select{font:inherit}button{background:0 0;border:0}button,input,select{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible,a:focus-visible{outline:2px solid color-mix(in srgb, var(--accent) 78%, white);outline-offset:2px}#root{max-width:90rem;min-height:100vh;margin:0 auto}h1,h2,h3,h4{color:var(--text-strong);font-family:var(--serif);letter-spacing:-.03em;font-weight:600}h1{font-size:clamp(3rem,6vw,5.6rem);line-height:.96}h2{font-size:clamp(2rem,4vw,3rem)}h3{font-size:clamp(1.45rem,2vw,2rem)}h4{font-size:clamp(1.1rem,1.5vw,1.35rem)}p{margin:0}.app-shell{padding:1rem 1rem 3rem}.topbar,.status-band,.hero-card,.section-card,.menu-drawer,.menu-page-button,.area-card,.path-card,.spine-step,.book-card,.area-cluster,.source-card,.detail-sheet,.graph-inspector,.filter-summary-card,.starter-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-soft);border-radius:1.5rem}.topbar{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);z-index:20;justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;padding:.85rem 1rem;display:flex;position:sticky;top:1rem}.topbar-brand{flex-direction:column;gap:.15rem;display:flex}.topbar-brand strong{color:var(--text-strong);font-size:1rem}.topbar-actions,.hero-actions,.metric-pills,.filter-chip-stack,.chip-row,.mini-meta-row,.cover-row,.area-meta{flex-wrap:wrap;gap:.75rem;display:flex}.menu-button,.ghost-button,.inline-link,.close-button,.path-card,.area-card,.menu-page-button,.spine-step,.graph-node,.book-card,.chip{cursor:pointer;transition:transform .18s,border-color .18s,background-color .18s,box-shadow .18s,opacity .18s}.menu-button,.ghost-button,.inline-link,.close-button,.chip{border:1px solid var(--border);color:var(--text-strong);background:0 0;border-radius:999px;justify-content:center;align-items:center;gap:.55rem;padding:.7rem 1rem;display:inline-flex}.inline-link{color:var(--accent)}.menu-button{flex-direction:column;gap:.24rem;min-width:2.8rem;min-height:2.8rem;padding:.65rem}.menu-button span{background:var(--text-strong);border-radius:999px;width:1.1rem;height:2px;display:block}.page-shell{flex-direction:column;gap:1rem;display:flex}.status-band,.hero-card,.section-heading,.path-hero-card,.detail-header,.starter-card-book,.graph-layout,.menu-section-header{justify-content:space-between;align-items:start;gap:1rem;display:flex}.status-band,.section-card,.path-hero-card,.area-cluster,.filter-summary-card,.graph-inspector,.source-card,.detail-sheet,.menu-drawer{padding:1.25rem}.status-band p,.hero-summary,.section-card p,.area-card p,.path-card p,.area-cluster p,.filter-summary-card p,.graph-inspector p,.detail-header p,.starter-card p,.menu-summary span,.menu-page-button span{color:var(--muted)}.eyebrow{color:var(--eyebrow);font-family:var(--mono);letter-spacing:.18em;text-transform:uppercase;font-size:.82rem;display:inline-block}.metric-pills span,.filter-chip-stack span,.loading-pill{background:var(--surface-strong);border:1px solid var(--border);color:var(--text-strong);border-radius:999px;padding:.55rem .85rem}.compact-pills span{font-size:.92rem}.hero-card{grid-template-columns:minmax(0,1.8fr) minmax(20rem,1fr);gap:1rem;padding:1.5rem;display:grid}.hero-copy h2,.section-card h3,.area-card h4,.path-card h4,.source-card h4,.detail-header h3,.graph-inspector h4,.starter-card h3,.status-band h1,.menu-section h2{margin:.35rem 0 .6rem}.hero-actions{margin-top:1.25rem}.starter-card{flex-direction:column;gap:1rem;min-height:18rem;padding:1.25rem;display:flex}.starter-card-book,.detail-cover-card{grid-template-columns:auto 1fr;gap:1rem;display:grid}.section-card{flex-direction:column;gap:1rem;display:flex}.section-heading-tight{margin-bottom:.35rem}.area-grid,.path-grid,.area-cluster-grid,.source-grid,.rule-grid,.filter-grid{gap:1rem;display:grid}.area-grid,.area-cluster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.path-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.path-grid-full{grid-template-columns:repeat(3,minmax(0,1fr))}.area-card,.path-card,.book-card,.menu-page-button{text-align:left;flex-direction:column;align-items:start;gap:.8rem;padding:1rem;display:flex}.area-card{background:radial-gradient(circle at top right, color-mix(in srgb, var(--area-color) 16%, transparent), transparent 46%), var(--surface)}.area-question{color:var(--text-strong);font-weight:600}.area-meta,.menu-summary,.cluster-count{color:var(--eyebrow);font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;font-size:.84rem}.path-card.is-active,.menu-page-button.is-active,.book-card.is-active,.spine-step.is-active,.graph-node.is-active,.chip.is-selected{border-color:color-mix(in srgb, var(--accent) 45%, var(--border));box-shadow:0 0 0 1px color-mix(in srgb, var(--accent) 32%, transparent)}.area-card:hover,.path-card:hover,.menu-page-button:hover,.spine-step:hover,.graph-node:hover,.book-card:hover,.ghost-button:hover,.inline-link:hover,.chip:hover,.close-button:hover,.menu-button:hover{border-color:color-mix(in srgb, var(--accent) 40%, var(--border));transform:translateY(-1px)}.reading-spine,.book-card-grid,.graph-edge-list,.menu-page-list{gap:.9rem;display:grid}.spine-step{background:color-mix(in srgb, var(--accent) 5%, var(--surface));border:1px solid var(--border);text-align:left;grid-template-columns:auto auto 1fr;align-items:start;gap:.9rem;padding:1rem;display:grid}.spine-step strong,.book-card strong,.graph-inspector h4,.path-card h4,.area-card h4,.detail-header h3,.source-card h4,.starter-card h3{color:var(--text-strong);font-family:var(--serif);font-weight:600}.spine-step span,.book-card span,.graph-edge-item span,.detail-header p{color:var(--muted)}.spine-step p,.book-card p{font-size:.95rem}.step-index{background:var(--accent-strong);color:#fff;border-radius:999px;justify-content:center;align-items:center;width:2.5rem;height:2.5rem;display:inline-flex}.map-page-card{gap:1.25rem}.graph-layout{grid-template-columns:minmax(0,1.7fr) minmax(18rem,.9fr);gap:1rem;display:grid}.graph-stage{background:radial-gradient(circle at top left, #ffffff94, transparent 36%), linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 88%, transparent), var(--surface));border:1px solid var(--border);border-radius:1.4rem;min-height:34rem;position:relative;overflow:auto}.graph-lines{color:color-mix(in srgb, var(--text-strong) 30%, transparent);width:100%;height:100%;position:absolute;top:0;left:0}.graph-link{stroke:currentColor;stroke-width:2px}.graph-link--adjacent{opacity:.35;stroke-dasharray:6 6}.graph-node{background:color-mix(in srgb, var(--area-color) 82%, #182033);border:3px solid color-mix(in srgb, var(--area-color) 65%, white 12%);color:#fff;border-radius:999px;justify-content:center;align-items:center;font-weight:700;display:inline-flex;position:absolute;transform:translate(-50%,-50%)}.graph-node span{color:inherit}.graph-inspector{flex-direction:column;gap:1rem;display:flex}.graph-edge-item{border-top:1px solid var(--border);gap:.3rem;padding-top:.85rem;display:grid}.filter-summary-card{justify-content:space-between;align-items:start;gap:1rem;display:flex}.filter-chip-stack{justify-content:flex-end;max-width:34rem}.area-cluster{background:linear-gradient(180deg, color-mix(in srgb, var(--area-color) 10%, transparent), transparent 26%), var(--surface);border-color:color-mix(in srgb, var(--area-color) 24%, var(--border));flex-direction:column;gap:1rem;display:flex}.book-card-grid{grid-template-columns:1fr}.book-card{grid-template-columns:auto 1fr;gap:.85rem;display:grid}.source-grid,.rule-grid{margin-top:.5rem}.source-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.source-card{flex-direction:column;gap:.75rem;display:flex}.source-card a{color:var(--accent);text-decoration:none}.rule-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.rule-grid article{border-top:1px solid var(--border);padding-top:1rem}.menu-backdrop,.detail-backdrop{-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:40;background:#090b126b;position:fixed;inset:0}.menu-backdrop{justify-content:flex-start;padding:1rem;display:flex}.menu-drawer{flex-direction:column;gap:1.25rem;width:min(100%,32rem);max-width:32rem;display:flex;overflow-y:auto}.menu-section{flex-direction:column;gap:1rem;display:flex}.menu-page-button strong{color:var(--text-strong)}.filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.filter-field,.toggle-field{flex-direction:column;gap:.55rem;display:flex}.filter-field-wide{grid-column:span 2}.filter-field span,.toggle-field span{color:var(--eyebrow);font-family:var(--mono);letter-spacing:.14em;text-transform:uppercase;font-size:.82rem}.filter-field input,.filter-field select{background:var(--surface-strong);border:1px solid var(--border);color:var(--text-strong);border-radius:1rem;padding:.85rem 1rem}.toggle-field{flex-direction:row;grid-column:span 2;align-items:center}.menu-summary{border-top:1px solid var(--border);flex-direction:column;gap:.35rem;padding-top:.85rem;display:flex}.book-cover{background:linear-gradient(180deg, color-mix(in srgb, var(--area-color) 55%, white), color-mix(in srgb, var(--area-color) 84%, #1c2334));border:1px solid color-mix(in srgb, var(--area-color) 55%, var(--border));color:#fff;text-align:center;border-radius:.95rem;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;gap:.2rem;padding:.45rem;display:flex;overflow:hidden;box-shadow:inset 0 1px #ffffff59}.book-cover span{color:inherit;font-family:var(--serif);letter-spacing:.06em;font-size:1.1rem;font-weight:700}.book-cover small{color:#fffc;font-family:var(--mono);letter-spacing:.08em;font-size:.64rem}.book-cover--mini{border-radius:.8rem;width:2.35rem;height:3.1rem}.book-cover--small{width:3.3rem;height:4.6rem}.book-cover--large{width:4.3rem;height:6.2rem}.book-cover.is-muted{opacity:.82}.detail-backdrop{padding:1rem}.detail-sheet{flex-direction:column;gap:1rem;max-width:42rem;height:calc(100vh - 2rem);margin-left:auto;display:flex;overflow:hidden}.detail-body{flex-direction:column;gap:1rem;padding-right:.25rem;display:flex;overflow-y:auto}.detail-cover-card{background:var(--surface-strong);border:1px solid var(--border);border-radius:1.25rem;align-items:center;padding:1rem}.detail-cover-image{box-shadow:var(--shadow-soft);border-radius:1rem;width:100%;max-width:12rem}.detail-summary{color:var(--text-strong);font-size:1.05rem}.close-button{align-self:start;width:2.7rem;height:2.7rem;font-size:1.55rem;line-height:1}.takeaway-list{color:var(--text-strong);gap:.6rem;margin:0;padding-left:1.2rem;display:grid}.static-row .static-chip{cursor:default;text-decoration:none}@media (width<=1280px){.hero-card,.graph-layout,.filter-summary-card,.area-grid,.path-grid,.path-grid-full,.area-cluster-grid,.source-grid,.rule-grid{grid-template-columns:1fr}.status-band,.filter-summary-card,.section-heading,.path-hero-card,.detail-header,.menu-section-header,.graph-layout{flex-direction:column}}@media (width<=860px){.app-shell{padding-inline:.75rem}.topbar,.status-band,.hero-card,.section-card,.menu-drawer,.area-cluster,.detail-sheet{border-radius:1.25rem}.filter-grid,.area-grid,.area-cluster-grid,.path-grid,.path-grid-full,.source-grid,.rule-grid{grid-template-columns:1fr}.filter-field-wide,.toggle-field{grid-column:span 1}.topbar,.status-band,.starter-card-book,.detail-cover-card,.spine-step,.book-card,.detail-header{flex-direction:column;grid-template-columns:1fr}.menu-backdrop,.detail-backdrop{padding:.5rem}.detail-sheet{width:100%;max-width:none;height:calc(100vh - 1rem)}}:root[data-theme=dark] .area-card,:root[data-theme=dark] .area-cluster,:root[data-theme=dark] .graph-inspector,:root[data-theme=dark] .book-card{background:radial-gradient(circle at top right, color-mix(in srgb, var(--area-color,var(--accent)) 22%, transparent), transparent 44%), linear-gradient(180deg, color-mix(in srgb, var(--area-color,var(--accent)) 14%, #23293a), #23293a)}