:root{--font-ui: "Instrument Sans", sans-serif;--font-display: "Fraunces", serif;--font-reader: "Literata", serif;--bg: #f6f0e6;--bg-strong: #fbf7f1;--surface: rgba(255, 252, 247, .94);--surface-strong: #fffdf9;--surface-soft: #efe5d7;--border: rgba(65, 49, 34, .12);--text: #1f2937;--muted: #5b6470;--primary: #18322b;--primary-strong: #0f241f;--accent: #8fae9a;--accent-strong: #2f7a5f;--warning: #9a6c20;--shadow: 0 18px 50px rgba(28, 36, 33, .08);--radius-xl: 32px;--radius-lg: 24px;--radius-md: 16px;--radius-sm: 12px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-ui);color:var(--text);background:radial-gradient(circle at top left,rgba(143,174,154,.18),transparent 24%),radial-gradient(circle at bottom right,rgba(24,50,43,.08),transparent 22%),linear-gradient(180deg,var(--bg-strong),var(--bg));min-height:100vh}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}input,textarea{color:var(--text)}.app-shell{min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 24px;-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);background:#f7f9fbd1;border-bottom:1px solid rgba(65,49,34,.08)}.topbar__menu-button{display:none;width:44px;height:44px;padding:0;border-radius:14px;background:#18322b14;align-items:center;justify-content:center;flex-direction:column;gap:4px}.topbar__menu-button span{width:18px;height:2px;border-radius:999px;background:var(--primary);transition:transform .18s ease,opacity .18s ease}.topbar__menu-button[aria-expanded=true] span:nth-child(1){transform:translateY(6px) rotate(45deg)}.topbar__menu-button[aria-expanded=true] span:nth-child(2){opacity:0}.topbar__menu-button[aria-expanded=true] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}.brand,h1,h2,h3{font-family:var(--font-display)}.brand{display:flex;align-items:center;gap:14px}.brand>span{min-width:0;display:grid;gap:2px}.brand__mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--primary),var(--primary-strong));color:#fff;font-size:1.05rem;box-shadow:0 12px 28px #0053db29}.brand strong,.brand small{display:block}.brand strong{font-size:1.05rem;line-height:1.1}.brand small{font-family:var(--font-ui);font-size:.78rem;color:var(--muted)}.topbar__nav,.topbar__actions,.reader-nav,.course-card__footer,.course-card__eyebrow,.chapter-card__header,.section-header,.progress-summary,.hero-stats,.info-row,.hero-tags{display:flex;align-items:center;gap:16px}.topbar__nav{flex-wrap:wrap;justify-content:center;padding:6px;border-radius:999px;background:#ffffff9e;border:1px solid rgba(65,49,34,.08)}.nav-pill,.topbar__nav a{padding:10px 16px;border-radius:999px;color:var(--muted);font-size:.95rem;font-weight:600;transition:color .18s ease,background-color .18s ease,transform .18s ease}.topbar__nav a:hover{color:var(--text);transform:translateY(-1px)}.nav-pill.active,.topbar__nav a.active{color:var(--text);background:#0053db1a}.topbar__actions{justify-content:flex-end}.topbar__contact{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 16px;border-radius:999px;background:#ffffffb8;border:1px solid rgba(65,49,34,.08);color:var(--primary);font-size:.9rem;font-weight:700}.page-shell{width:min(1380px,calc(100% - 40px));margin:0 auto;padding:40px 0 72px}.page-shell:has(.learning-layout--reader){width:min(1560px,calc(100% - 32px))}.page{display:grid;gap:32px}.home-page{gap:28px}.static-content-page{gap:40px}.static-content-page>.static-page,.static-content-page>.static-grid,.static-content-page>.editorial-card.static-page{margin-top:4px}.hero{display:grid;grid-template-columns:1.4fr .8fr;gap:24px;align-items:end}.hero--catalog,.hero--home{grid-template-columns:1fr}.hero-panel,.search-card,.sidebar-card,.editorial-card,.reader-card,.course-card,.chapter-card,.loading-state__card,.state-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow)}.hero-panel{display:grid;gap:22px;padding:clamp(28px,5vw,44px);border-radius:var(--radius-xl);background:radial-gradient(circle at top right,rgba(143,174,154,.18),transparent 24%),linear-gradient(160deg,#fffdf9f0,#f4eee4e0)}.hero-panel--home{min-height:100%;justify-items:center;text-align:center;padding-block:clamp(52px,9vw,88px)}.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:#ffffffb8;color:var(--primary);font-size:.74rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.hero-badge__dot{width:8px;height:8px;border-radius:999px;background:var(--accent-strong)}.hero-panel--home h1{max-width:14ch;margin:0;font-size:clamp(3rem,7vw,5rem);line-height:1.06;letter-spacing:-.04em}.hero-highlight{color:var(--primary)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.hero__body--wide{max-width:62ch;font-size:1.08rem;text-align:center}.hero-subnote{margin:-4px 0 0;color:var(--muted);font-size:1rem;font-weight:600}.home-visual-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.visual-card{display:grid;gap:18px;padding:22px;border-radius:var(--radius-lg);background:radial-gradient(circle at top left,rgba(255,255,255,.48),transparent 36%),linear-gradient(165deg,#fffdf9f0,#f0f5faeb);border:1px solid var(--border);box-shadow:var(--shadow)}.visual-card__header{display:grid;gap:6px}.visual-card__header h2{margin:0;font-size:1.32rem}.visual-card__label{color:var(--muted);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.visual-card__canvas{display:grid;gap:10px;padding:16px;border-radius:18px;background:#ffffffb8;border:1px solid rgba(65,49,34,.08)}.visual-card--flow .visual-card__canvas{grid-template-columns:repeat(2,minmax(0,1fr))}.visual-card--stack .visual-card__canvas,.visual-card--signal .visual-card__canvas{grid-template-columns:1fr}.visual-card__node{display:flex;align-items:center;gap:10px;min-height:52px;padding:12px 14px;border-radius:14px;background:linear-gradient(135deg,#0053db14,#8fae9a24);border:1px solid rgba(24,50,43,.08)}.visual-card__node-index{display:grid;place-items:center;width:26px;height:26px;border-radius:999px;background:#ffffffd1;color:var(--primary);font-size:.8rem;font-weight:700}.visual-card__node strong{font-size:.95rem}.roadmap-grid,.site-footer__content,.site-footer__links,.site-footer__bottom,.home-value-grid,.static-grid{display:grid;gap:16px}.value-card,.roadmap-item,.static-page{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:var(--radius-lg)}.roadmap-item,.static-page{padding:24px}.roadmap-item h3,.static-page h1,.static-page h2{margin:0}.principle-card p,.roadmap-item p,.static-page p{margin:0;color:var(--muted);line-height:1.7}.home-value-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.value-card{display:grid;gap:16px;padding:24px;transition:transform .18s ease,background-color .18s ease}.value-card:hover{transform:translateY(-3px);background:#fffffffa}.value-card__icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.55),transparent 42%),linear-gradient(135deg,#0053db24,#8fae9a38);border:1px solid rgba(24,50,43,.08)}.value-card__icon svg{width:24px;height:24px;stroke:var(--primary);stroke-width:1.8;fill:none;stroke-linecap:round;stroke-linejoin:round}.value-card__copy{display:grid;gap:8px}.value-card__copy h2{margin:0;font-size:1.22rem}.value-card__copy p{margin:0;color:var(--muted);line-height:1.68}.roadmap-card{gap:20px;padding:28px}.roadmap-card__intro{display:grid;gap:12px;max-width:82ch}.roadmap-card__intro h2{margin:0;max-width:18ch}.roadmap-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.roadmap-item{display:grid;gap:14px;align-content:start;background:radial-gradient(circle at top left,rgba(255,255,255,.5),transparent 32%),linear-gradient(180deg,#fffdf9f0,#f8f5f0e6)}.roadmap-item__index{display:inline-flex;align-items:center;justify-content:center;width:fit-content;min-width:42px;min-height:28px;padding:0 10px;border-radius:999px;background:#0053db14;border:1px solid rgba(0,83,219,.14);color:var(--primary);font-size:.78rem;font-weight:700;letter-spacing:.06em}.roadmap-item h3{font-size:1.18rem;line-height:1.18}.static-page{display:grid;gap:16px;align-content:start;justify-items:start;text-align:left}.static-page .eyebrow{margin-bottom:2px}.static-page h2{margin-bottom:6px}.static-page .contact-email,.static-page .faq-list,.static-page .contact-list{margin-top:10px;width:100%}.static-page p,.static-page .contact-list{max-width:68ch}.static-page .faq-list{max-width:none}.static-page h1,.static-page h2{max-width:22ch}.contact-page .static-page p,.contact-page .static-page .contact-list,.contact-page .static-page .faq-list,.contact-page .static-page h2{max-width:none}.static-page--hero{padding:clamp(28px,5vw,40px);background:radial-gradient(circle at top right,rgba(143,174,154,.15),transparent 28%),linear-gradient(145deg,#fffdf9f5,#f2ebe0e6)}.static-page--hero h1{font-size:clamp(2rem,4vw,3.2rem);line-height:1.02}.static-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.faq-list{display:grid;gap:12px}.page>.static-grid,.page>.static-page,.page>.editorial-card.static-page{margin-top:8px}.faq-item{border:1px solid rgba(24,50,43,.08);border-radius:18px;background:#fff9;padding:16px 18px}.faq-item summary{display:block;cursor:pointer;list-style:none;font-weight:600;color:var(--text);text-align:left}.faq-item summary::-webkit-details-marker{display:none}.faq-item p{margin-top:12px}.contact-list{margin:0;padding-left:1.2rem;color:var(--muted);line-height:1.7}.policy-list{margin:0;padding-left:1.2rem;color:var(--muted);line-height:1.7;width:100%}.policy-list li+li{margin-top:10px}.contact-list li+li{margin-top:10px}.contact-email{display:inline-flex;width:fit-content;padding:12px 16px;border-radius:999px;background:linear-gradient(135deg,var(--primary),var(--primary-strong));color:#fff;font-weight:600}.site-footer{margin-top:32px;padding:28px 20px 36px;border-top:1px solid var(--border);background:#f6f0e6b8}.site-footer__content,.site-footer__bottom{width:min(1380px,calc(100% - 40px));margin:0 auto}.site-footer__content{grid-template-columns:minmax(0,1.4fr) minmax(260px,.8fr);align-items:start}.site-footer__brand{display:grid;gap:8px}.site-footer__brand p{margin:0;color:var(--muted);max-width:58ch;line-height:1.7}.site-footer__links{grid-template-columns:repeat(2,minmax(0,1fr))}.site-footer__links a{color:var(--muted)}.site-footer__bottom{display:flex;justify-content:space-between;gap:16px;margin-top:20px;padding-top:20px;color:var(--muted);border-top:1px solid rgba(24,50,43,.08);font-size:.92rem}.section-header--library{width:100%;justify-content:space-between;align-items:end;gap:24px}.section-header__copy{flex:1 1 auto;display:grid;gap:10px;max-width:64ch}.section-header__copy h2,.section-header__copy p{margin:0}.section-header__copy p:last-child{color:var(--muted);line-height:1.7}.hero h1,.reader-header h1{margin:0;font-size:clamp(2.4rem,4vw,4.6rem);line-height:.98}.eyebrow,.breadcrumb,.reader-meta,.outline__chapter-title span,.course-card__eyebrow,.user-badge{color:var(--muted);font-size:.86rem;letter-spacing:.02em;text-transform:uppercase}.hero__body,.course-card p,.sidebar-card p,.editorial-card p,.chapter-card p,.panel-intro,.reader-intro,.search-card small{color:var(--muted);line-height:1.7}.search-card,.sidebar-card,.editorial-card,.reader-card,.loading-state__card,.state-card{padding:24px;border-radius:var(--radius-lg)}.loading-state{min-height:240px;display:grid;place-items:center}.loading-state__card{min-width:min(100%,280px);display:grid;justify-items:center;gap:14px;background:#ffffffeb}.loading-state__spinner{width:42px;height:42px;border-radius:50%;border:3px solid rgba(24,50,43,.14);border-top-color:#fff;border-right-color:#fff;background:linear-gradient(135deg,var(--primary),#315347);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.search-card{display:grid;gap:12px;align-content:start}.search-card input,.form-grid input,.form-grid textarea{width:100%;padding:14px 16px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-strong);outline:none}.search-card input:focus,.form-grid input:focus,.form-grid textarea:focus{border-color:#18322b59;box-shadow:0 0 0 4px #18322b14}.course-grid,.chapter-list{display:grid;gap:20px}.course-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.course-card{padding:24px;display:grid;gap:18px;border-radius:var(--radius-lg)}.course-card--link{position:relative;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background-color .18s ease}.course-card--link:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.14),transparent 48%);opacity:0;transition:opacity .18s ease;pointer-events:none}.course-card--link:hover{transform:translateY(-4px);border-color:#18322b2e;background:#fffffffa;box-shadow:0 24px 56px #1c24211f}.course-card--link:hover:after{opacity:1}.course-card--link:hover .course-card__cta{background:#18322b1f;transform:translate(4px)}.course-card--link:hover h3{color:var(--primary)}.course-card__meta{display:flex;align-items:start;justify-content:space-between;gap:16px}.course-card h3,.chapter-card h3{margin:0;font-size:1.5rem}.pill-group{display:flex;gap:8px;flex-wrap:wrap}.tag-pill,.ghost-link,.secondary-button,.primary-link-button,.user-badge,.status-pill{padding:10px 14px;border-radius:999px}.tag-pill,.secondary-button,.user-badge,.status-pill{background:#8fae9a24}.primary-link-button{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),var(--primary-strong));color:#fff}.primary-link-button--button{min-width:150px}.secondary-button,.ghost-link{color:var(--primary);background:#18322b0f}.course-card__cta{transition:transform .18s ease,background-color .18s ease}.status-pill{font-size:.76rem;text-transform:uppercase;letter-spacing:.04em}.status-pill--draft{color:var(--warning);background:#9a6c201f}.status-pill--published{color:var(--accent-strong);background:#2f7a5f1f}.hero-stats,.info-row{flex-wrap:wrap}.hero-tags{flex-wrap:wrap;gap:10px}.hero-tag{padding:10px 14px;border-radius:999px;background:#18322b0f;color:var(--primary)}.hero-stat,.info-row span{padding:14px 16px;border:1px solid var(--border);border-radius:18px;background:#fffdf9b3}.hero-stat{display:grid;gap:4px;min-width:124px}.hero-stat strong{font-size:1.2rem;font-family:Fraunces,serif}.hero-stat span,.info-row span{color:var(--muted);font-size:.88rem}.sidebar-card>.primary-link-button{margin-top:8px}.sidebar-link-button{display:inline-flex;align-items:center;justify-content:center;margin-top:8px;width:fit-content;padding:8px 12px;border-radius:999px;background:#18322b0f;color:var(--primary);font-weight:600;font-size:.9rem}.learning-layout{display:grid;grid-template-columns:320px minmax(0,1fr);gap:28px}.course-detail-page{gap:24px}.course-hero-card,.course-syllabus-card{display:grid;gap:24px}.course-hero-card{grid-template-columns:minmax(0,1.4fr) minmax(280px,.8fr);align-items:start;padding:clamp(24px,4vw,36px);background:radial-gradient(circle at top right,rgba(143,174,154,.16),transparent 28%),linear-gradient(145deg,#fffdf9f5,#f2ebe0e6)}.course-hero-card__main,.course-hero-card__progress,.course-syllabus-card__intro,.syllabus-accordion,.syllabus-chapter__header,.syllabus-topic__body,.syllabus-topic-list{display:grid;gap:12px}.course-hero-card__main h1,.course-syllabus-card__intro h2{margin:0}.course-hero-card__summary,.course-syllabus-card__intro p,.syllabus-chapter__header p,.syllabus-topic__body p{margin:0;color:var(--muted);line-height:1.7}.course-hero-card__main{gap:18px}.course-hero-card__main h1{font-size:clamp(2.2rem,4vw,3.6rem);line-height:.98}.course-hero-card__summary{max-width:62ch;font-size:1.04rem}.course-hero-card__stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.course-stat-tile{display:grid;gap:6px;padding:14px 16px;border-radius:18px;border:1px solid rgba(24,50,43,.08);background:#ffffff94}.course-stat-tile span{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}.course-stat-tile strong{font-family:Fraunces,serif;font-size:1.18rem}.course-hero-card__actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.course-hero-card__progress{gap:18px;padding:22px;border-radius:26px;border:1px solid rgba(24,50,43,.08);background:#ffffff9e;box-shadow:inset 0 1px #ffffffd1}.course-progress-bar{width:100%;height:10px;border-radius:999px;background:#18322b1a;overflow:hidden}.course-progress-bar span{display:block;height:100%;border-radius:inherit;background:linear-gradient(135deg,var(--accent-strong),var(--primary))}.course-progress-stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.course-progress-stat{display:grid;gap:5px;padding:12px 14px;border-radius:16px;background:#18322b0d;border:1px solid rgba(24,50,43,.06)}.course-progress-stat span{color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.04em}.course-progress-stat strong{font-family:Fraunces,serif;font-size:1rem}.course-progress-note{display:grid;gap:6px;padding-top:14px;border-top:1px solid rgba(24,50,43,.08)}.course-progress-note span{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}.course-progress-note strong{font-family:Fraunces,serif;font-size:1.1rem}.course-syllabus-card__intro{max-width:72ch}.syllabus-accordion{gap:12px}.syllabus-chapter{border:1px solid var(--border);border-radius:var(--radius-lg);background:#fffdf9c7;overflow:hidden}.syllabus-chapter--open{background:#ffffffeb}.syllabus-chapter__trigger{width:100%;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;padding:12px 14px;text-align:left;background:transparent}.syllabus-chapter__header h3{margin:0;font-size:1.18rem}.syllabus-chapter__eyebrow{margin:0;color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}.syllabus-chapter__meta{display:grid;gap:6px;align-content:start;justify-items:end;color:var(--muted);font-size:.84rem}.syllabus-chapter__icon{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:#18322b14;color:var(--primary);font-size:.9rem}.syllabus-chapter__content{display:grid;gap:12px;padding:0 14px 14px}.syllabus-chapter__summary{margin:0;color:var(--muted);line-height:1.65}.syllabus-topic-list{gap:8px}.syllabus-topic{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 14px;border-radius:14px;background:#f4eee485;border:1px solid rgba(24,50,43,.05)}.syllabus-topic--completed{background:#8fae9a24;border-color:#2f7a5f24}.syllabus-topic__index{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#18322b14;color:var(--primary);font-family:Fraunces,serif;font-size:.95rem}.syllabus-topic__index--completed{background:linear-gradient(135deg,var(--accent-strong),#256b53);color:#fff;font-family:var(--font-ui);font-size:1rem;font-weight:700}.syllabus-topic__body strong{font-size:.98rem;line-height:1.35}.syllabus-topic__body p{font-size:.92rem;line-height:1.55}.syllabus-topic__action{color:var(--primary);font-weight:600;align-self:center;font-size:.9rem}.syllabus-topic__action--completed{color:var(--accent-strong)}.featured-course{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;padding:34px;border-radius:var(--radius-xl);background:linear-gradient(145deg,#fffcf7eb,#ede5d7db);border:1px solid var(--border);box-shadow:var(--shadow)}.featured-course--link{position:relative;overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background-color .18s ease}.featured-course--link:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.14),transparent 44%);opacity:0;transition:opacity .18s ease;pointer-events:none}.featured-course--link:hover{transform:translateY(-4px);border-color:#18322b2e;box-shadow:0 24px 56px #1c24211f}.featured-course--link:hover:after{opacity:1}.featured-course--link:hover .featured-course__cta{transform:translate(4px)}.featured-course--link:hover .featured-course__copy h2{color:var(--primary)}.featured-course__copy,.featured-course__panel{display:grid;gap:18px}.featured-course__copy h2{margin:0;font-size:clamp(2rem,3vw,3rem);line-height:1.08}.featured-course__copy p{margin:0;color:var(--muted);line-height:1.75}.featured-course__lede{font-size:1.03rem}.featured-course__metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.featured-course__metric{display:grid;gap:4px;padding:14px 16px;border-radius:16px;background:#ffffff80;border:1px solid rgba(65,49,34,.08)}.featured-course__metric span{color:var(--muted);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em}.featured-course__metric strong{font-size:1rem}.featured-course__topics{display:flex;flex-wrap:wrap;gap:10px}.featured-course__topics-block{display:grid;gap:12px}.featured-course__topics-label{color:var(--muted);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.featured-course__topic-pill{display:inline-flex;align-items:center;justify-content:center;min-height:38px;padding:8px 14px;border-radius:999px;background:#ffffffc2;border:1px solid rgba(0,83,219,.12);color:var(--primary);font-size:.84rem;font-weight:700;line-height:1.2}.featured-course__panel{align-content:start;padding:24px;border-radius:var(--radius-lg);background:#ffffff9e;border:1px solid var(--border)}.featured-course__panel-top{display:grid;gap:12px}.featured-course__panel-label{color:var(--muted);font-size:.76rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}.featured-course__mini-map{display:grid;grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr) 18px minmax(0,1fr);gap:8px;align-items:center}.featured-course__mini-node{min-height:54px;display:grid;place-items:center;padding:12px 10px;border-radius:14px;background:radial-gradient(circle at top left,rgba(255,255,255,.4),transparent 40%),linear-gradient(145deg,#0053db1f,#8fae9a33);border:1px solid rgba(24,50,43,.08);color:var(--primary);font-size:.8rem;font-weight:700;text-align:center}.featured-course__mini-line{height:2px;border-radius:999px;background:linear-gradient(90deg,#0053db3d,#8fae9a6b)}.featured-course__stat{display:grid;gap:4px;padding-bottom:14px;border-bottom:1px solid rgba(65,49,34,.08)}.featured-course__stat:last-of-type{border-bottom:0;padding-bottom:0}.featured-course__stat strong{font-family:Fraunces,serif;font-size:1.15rem}.featured-course__stat span{color:var(--muted);line-height:1.6}.featured-course__cta{transition:transform .18s ease}.learning-layout--reader{grid-template-columns:280px minmax(0,1fr);gap:20px}.learning-sidebar{display:grid;gap:20px;align-content:start;position:sticky;top:100px;height:fit-content}.reader-toc-card{display:grid;gap:18px;padding:20px;background:linear-gradient(180deg,#fffdf9f5,#f2ebe0f0)}.reader-toc-card__header{display:flex;align-items:start;justify-content:space-between;gap:12px}.reader-toc-card__header>div{display:grid;gap:6px}.reader-toc-card__label{color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.05em}.reader-toc-card__percentage{font-family:Fraunces,serif;font-size:2rem;line-height:1}.reader-toc-card__toggle{display:none;flex:0 0 auto;padding:10px 14px;border-radius:999px;background:#18322b14;color:var(--primary);font-weight:600;font-size:.9rem}.reader-toc{display:grid;gap:4px}.reader-toc__link{display:block;padding:8px 10px;border-radius:12px;color:var(--muted);line-height:1.45;transition:background-color .16s ease,color .16s ease,transform .16s ease}.reader-toc__link:hover{background:#18322b0f;color:var(--text);transform:translate(2px)}.reader-toc__link--h1{font-weight:700;color:var(--text)}.reader-toc__link--h2{padding-left:18px;font-size:.95rem}.reader-toc__link--h3{padding-left:28px;font-size:.9rem}.outline{display:grid;gap:20px}.outline__chapter{display:grid;gap:12px}.outline__chapter-title{display:grid;gap:2px;margin:0}.outline__chapter-title strong{color:var(--text);font-size:1rem;text-transform:none;letter-spacing:0}.outline__topics{display:grid;gap:10px}.outline__topic{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-sm);color:var(--muted)}.outline__topic--active{background:#18322b14;color:var(--text)}.outline__topic-index{width:18px;font-size:.82rem;color:var(--muted)}.completion-dot{width:10px;height:10px;border-radius:50%;border:1px solid rgba(24,50,43,.3)}.completion-dot--done{background:var(--accent-strong);border-color:transparent}.content-panel{display:grid;gap:24px;min-width:0;justify-items:stretch}.content-panel--reader{gap:20px}.reader-card{width:min(100%,980px);max-width:980px;padding:clamp(24px,4vw,40px);background:linear-gradient(180deg,#fffdf9fa,#faf6eff5)}.reader-card--reader,.reader-footer--reader{width:100%;max-width:none}.reader-header{display:flex;align-items:start;justify-content:space-between;gap:24px;padding:18px 0 32px;border-bottom:1px solid var(--border);margin-bottom:32px}.reader-header--simple{display:grid;gap:18px}.reader-header>div{min-width:0}.reader-header__copy{display:grid;gap:14px}.reader-header__meta{display:flex;flex-wrap:wrap;gap:10px}.reader-header__meta span,.reader-kicker{padding:10px 14px;border-radius:16px;border:1px solid rgba(24,50,43,.08);background:#ffffffb8}.reader-header__meta span{color:var(--muted);font-size:.9rem}.reader-kicker{min-width:220px;display:grid;gap:6px}.reader-kicker strong{font-family:Fraunces,serif;font-size:1.05rem;line-height:1.25}.reader-kicker__label{color:var(--muted);font-size:.76rem;text-transform:uppercase;letter-spacing:.04em}.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:18px}.breadcrumb a{color:var(--primary)}.reader-intro{max-width:72ch;font-family:var(--font-reader);font-size:1.05rem;line-height:1.85;margin:0}.lesson-video{margin-bottom:32px}.lesson-video__frame{position:relative;overflow:hidden;border-radius:24px;border:1px solid rgba(24,50,43,.1);background:radial-gradient(circle at top left,rgba(143,174,154,.16),transparent 26%),linear-gradient(180deg,#fffffff5,#f5efe6fa);box-shadow:var(--shadow)}.lesson-video__frame:before{content:"";display:block;padding-top:56.25%}.lesson-video__media,.lesson-video__fallback{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.lesson-video__media{display:block;border:0;background:#000}.lesson-video__fallback{display:grid;place-items:center;gap:10px;padding:24px;text-align:center}.lesson-video__fallback-label{margin:0;color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}.lesson-video__fallback a{color:var(--primary);font-weight:700}.rich-text{display:grid;gap:20px;min-width:0;font-family:var(--font-reader);line-height:1.92;font-size:1.08rem;letter-spacing:.002em;overflow-wrap:anywhere}.rich-text__html{display:grid;gap:20px}.rich-text h2,.rich-text h3{margin-bottom:0;line-height:1.15;scroll-margin-top:110px}.rich-text h1{scroll-margin-top:110px}.rich-text h2{margin-top:20px;font-size:clamp(1.8rem,2.4vw,2.3rem)}.rich-text h3{margin-top:14px;font-size:clamp(1.25rem,1.8vw,1.5rem)}.rich-text p,.rich-text ul,.rich-text ol,.rich-text blockquote,.rich-text pre,.rich-text table{margin:0}.rich-text ul,.rich-text ol{padding-left:1.35rem}.rich-text li+li{margin-top:8px}.rich-text a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}.rich-text code,.rich-text pre{font-family:SFMono-Regular,SF Mono,Consolas,Liberation Mono,Menlo,monospace}.rich-text pre{max-width:100%;overflow-x:auto;padding:18px 20px;border-radius:var(--radius-md);border:1px solid rgba(24,50,43,.08);background:#fff;box-shadow:inset 0 1px #fffc}.rich-text pre code{white-space:pre;word-break:normal}.rich-text :not(pre)>code{padding:.18rem .45rem;border-radius:8px;background:#18322b14;font-size:.92em}.rich-text img,.rich-text video,.rich-text iframe,.rich-text svg{max-width:100%;height:auto;display:block;border-radius:var(--radius-md)}.rich-text .mermaid{display:grid;justify-items:center;max-width:100%;overflow-x:auto;padding:18px 20px;border-radius:var(--radius-md);border:1px solid rgba(24,50,43,.08);background:#fff;box-shadow:inset 0 1px #fffc}.rich-text__diagram-loading,.rich-text__diagram-fallback{max-width:100%;overflow-x:auto;padding:18px 20px;border-radius:var(--radius-md);border:1px solid rgba(24,50,43,.08);background:#fff}.rich-text__diagram-loading{color:#18322bb8;font-size:.98rem}.rich-text .mermaid svg{width:auto;max-width:100%;min-width:0;height:auto;display:block;margin:0 auto}.rich-text .mermaid svg foreignObject{overflow:visible}.rich-text .mermaid svg foreignObject div{display:flex!important;align-items:center;justify-content:center;width:100%;height:100%;max-width:100%;white-space:normal!important;word-break:break-word;overflow-wrap:anywhere;text-align:center}.rich-text .mermaid .nodeLabel,.rich-text .mermaid .label,.rich-text .mermaid .cluster-label,.rich-text .mermaid .edgeLabel{max-width:100%}.rich-text .mermaid .nodeLabel p,.rich-text .mermaid .nodeLabel span,.rich-text .mermaid .label p,.rich-text .mermaid .label span{display:block;width:100%;margin:0;max-width:100%;white-space:normal!important;word-break:break-word;overflow-wrap:anywhere;line-height:1.25;text-align:center}.rich-text table{width:100%;display:block;overflow-x:auto;border-collapse:collapse}.rich-text th,.rich-text td{padding:12px 14px;border:1px solid rgba(24,50,43,.08);text-align:left}.rich-text blockquote{padding:18px 22px;background:#8fae9a1f;border-left:4px solid rgba(24,50,43,.22);border-radius:var(--radius-md);color:var(--primary)}.reader-sidebar-card{display:grid;gap:18px;background:linear-gradient(180deg,#fffdf9f5,#f2ebe0f0)}.reader-progress{display:grid;gap:16px;justify-items:start}.reader-progress__copy{display:grid;gap:6px}.reader-progress__copy strong{font-family:Fraunces,serif;font-size:1.25rem}.reader-progress__copy p{margin:0}.reader-sidebar-meta{display:grid;gap:12px}.reader-sidebar-meta div{display:grid;gap:4px;padding-top:12px;border-top:1px solid rgba(24,50,43,.08)}.reader-sidebar-meta span{color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}.reader-sidebar-meta strong{font-size:1rem;line-height:1.4}.reader-footer{width:min(100%,980px);max-width:980px}.reader-nav{display:grid;grid-template-columns:minmax(0,1fr) 260px minmax(0,1fr);gap:18px;align-items:stretch}.reader-nav__side{display:flex}.reader-nav__side--right{justify-content:flex-end}.lesson-nav-card,.complete-button{border:1px solid var(--border);border-radius:var(--radius-md)}.lesson-nav-card{width:100%;min-height:112px;display:grid;gap:8px;padding:20px 22px;background:#fffdf9eb;box-shadow:var(--shadow)}.lesson-nav-card strong,.complete-button strong{font-size:1.1rem;line-height:1.4}.lesson-nav-card__label,.complete-button__eyebrow{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.lesson-nav-card--next{text-align:right}.lesson-nav-card--disabled{opacity:.6;box-shadow:none}.complete-button{min-height:112px;padding:20px 22px;background:linear-gradient(135deg,var(--primary),var(--primary-strong));color:#fff;display:grid;place-items:center;text-align:center}.complete-button--done{background:linear-gradient(135deg,var(--accent-strong),#1f6e57)}.complete-button__eyebrow{color:#ffffffb3}.reader-feedback{margin:12px 0 0;color:var(--accent-strong);font-weight:600;text-align:center}.progress-ring{width:110px;height:110px;flex:0 0 auto}.progress-ring__track,.progress-ring__bar{fill:none;stroke-width:10}.progress-ring__track{stroke:#8fae9a38}.progress-ring__bar{stroke:var(--accent-strong);stroke-linecap:round;transform:rotate(-90deg);transform-origin:center}.progress-ring text{font-family:Fraunces,serif;font-size:1.1rem;fill:var(--text)}.progress-summary__copy{display:grid;gap:6px}.chapter-index{color:var(--muted);font-size:.9rem;margin-right:6px}.text-link{color:var(--primary);font-weight:600}.form-grid label{display:grid;gap:8px}.error-text{color:#9c3020;margin:0}.chapter-card__button{width:100%;text-align:left;background:transparent}.chapter-card{padding:20px;border-radius:var(--radius-lg)}.chapter-card__button{display:grid;gap:12px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid__full{grid-column:1 / -1}.panel-intro{margin-top:0}@media(max-width:960px){.hero,.hero--home,.learning-layout,.learning-layout--reader,.featured-course,.home-visual-grid,.course-hero-card,.site-footer__content,.home-value-grid,.roadmap-grid,.static-grid{grid-template-columns:1fr}.course-hero-card__stats{grid-template-columns:repeat(2,minmax(0,1fr))}.featured-course__metrics{grid-template-columns:1fr}.section-header--library{align-items:start}.roadmap-card{padding:24px}.roadmap-card__intro,.section-header__copy{max-width:none}.learning-sidebar{position:static}.reader-toc-card__toggle{display:inline-flex;align-items:center;justify-content:center}.reader-toc{display:none}.reader-toc--open{display:grid}.topbar{position:sticky;padding:12px 16px;gap:12px;min-height:72px;align-items:center;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px)}.topbar__menu-button{display:inline-flex;flex:0 0 auto;width:42px;height:42px;border:1px solid rgba(24,50,43,.08);background:#ffffffad;box-shadow:0 12px 30px #1c242114}.brand{min-width:0;gap:10px}.brand__mark{width:38px;height:38px;border-radius:12px;font-size:1.05rem}.brand strong{font-size:1rem}.brand small{display:none}.topbar__nav{display:none;position:absolute;left:16px;right:16px;top:calc(100% + 8px);width:auto;padding:12px;border:1px solid rgba(24,50,43,.08);border-radius:20px;background:#fffdf9f5;box-shadow:0 20px 48px #1c24211f}.topbar__nav--open{display:grid;gap:10px}.topbar__actions{display:none}.topbar__nav a{width:100%;padding:12px 14px;border-radius:14px;background:#18322b0a;font-weight:600}.topbar__nav a.active{background:#18322b1a}}@media(max-width:640px){.page-shell{width:min(100% - 24px,1380px);padding-top:24px}.page,.home-page{gap:24px}.hero-panel{padding:24px}.hero-panel--home{gap:18px;padding-block:32px}.hero-panel--home h1{max-width:10.5ch;font-size:clamp(2.3rem,11vw,3.2rem);line-height:1.02}.hero__body--wide{max-width:none;font-size:.98rem}.hero-subnote{font-size:.92rem}.hero-stats{display:grid;grid-template-columns:1fr;width:100%;gap:10px}.hero-stat{width:100%;min-width:0}.course-hero-card__stats,.course-progress-stats{grid-template-columns:1fr}.site-footer__content,.site-footer__bottom{width:min(100% - 24px,1380px)}.site-footer__links,.form-grid{grid-template-columns:1fr}.reader-header,.section-header,.topbar__actions,.course-card__footer,.progress-summary,.site-footer__bottom{flex-direction:column;align-items:start}.topbar{padding:10px 12px}.brand{gap:8px}.brand strong{font-size:.96rem}.topbar__nav{left:12px;right:12px;top:calc(100% + 6px)}.visual-card,.value-card,.roadmap-item,.course-card,.featured-course,.featured-course__panel{padding:20px}.visual-card--flow .visual-card__canvas{grid-template-columns:1fr}.value-card__copy h2,.roadmap-item h3{font-size:1.08rem}.featured-course{gap:18px}.featured-course__copy h2{font-size:1.7rem;line-height:1.08}.featured-course__lede{font-size:.98rem}.featured-course__topics{gap:8px}.featured-course__topic-pill{min-height:34px;padding:7px 12px;font-size:.8rem}.featured-course__mini-map{grid-template-columns:1fr;gap:10px;justify-items:stretch}.featured-course__mini-line{width:2px;height:18px;margin:0 auto;background:linear-gradient(180deg,#0053db3d,#8fae9a6b)}.roadmap-card{padding:20px;gap:18px}.roadmap-card__intro h2,.section-header__copy h2{max-width:none;font-size:1.55rem;line-height:1.12}.section-header--library{gap:14px}.section-header--library .ghost-link{width:100%;justify-content:center}.reader-kicker{min-width:0;width:100%}.reader-card,.reader-footer{width:100%}.reader-nav,.syllabus-chapter__trigger,.syllabus-topic{grid-template-columns:1fr}.syllabus-chapter__meta{justify-items:start}.syllabus-topic__action{align-self:start}.reader-nav__side--right{justify-content:stretch}.lesson-nav-card--next{text-align:left}.brand{width:100%}}@media(max-width:430px){.page-shell{width:min(100% - 20px,1380px);padding-top:20px}.topbar{padding:10px}.topbar__menu-button{width:40px;height:40px;border-radius:12px}.hero-badge{padding:7px 12px;font-size:.68rem}.hero-actions{width:100%;display:grid;grid-template-columns:1fr}.hero-actions .primary-link-button,.hero-actions .ghost-link{width:100%;justify-content:center}.visual-card__node,.featured-course__mini-node{min-height:48px;padding:10px 12px}.featured-course__metric{padding:12px 14px}.rich-text .mermaid{padding:14px 12px}.rich-text .mermaid svg{max-width:none;width:max-content;min-width:100%}.rich-text .mermaid svg foreignObject div{font-size:12px!important;line-height:1.3!important}}
