*,*::before,*::after{box-sizing:border-box}
:root{
  --surface:var(--color-surface);--surface-2:var(--color-surface-raised);--line:var(--color-border);
  --text:var(--color-text);--muted:var(--color-text-muted);--faint:var(--color-text-subtle);--gold:var(--color-brand);
  --font-serif:'Iowan Old Style','Palatino Linotype',Palatino,'Book Antiqua',Georgia,serif;
  --font-mono:'Fira Code','JetBrains Mono','Cascadia Code',Consolas,monospace;
  --type-display:38px;--type-display-mobile:27px;--type-lede:15px;--type-section:28px;--type-card-title:17px;--type-body:13px;--type-label:10.5px;
}
html{scroll-behavior:smooth;background:var(--color-canvas)}
body{margin:0;background:radial-gradient(120% 85% at 82% -5%,#2a1d10 0%,var(--color-canvas) 54%);color:var(--text);font-family:var(--font-serif);letter-spacing:.01em}
body::before{content:'';position:fixed;inset:0;pointer-events:none;opacity:.16;background-image:linear-gradient(rgba(255,255,255,.024) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.024) 1px,transparent 1px);background-size:34px 34px;mask-image:linear-gradient(to bottom,#000,transparent 72%)}
.catalog-skip-link{position:fixed;z-index:9999;top:8px;left:8px;padding:10px 14px;border:2px solid var(--gold);border-radius:8px;background:var(--surface);color:var(--text);font:700 12px var(--font-mono);text-decoration:none;transform:translateY(-150%);transition:transform .16s ease}
.catalog-skip-link:focus{transform:translateY(0);outline:2px solid var(--text);outline-offset:2px}
main{position:relative;max-width:1420px;margin:0 auto;padding:62px 54px 48px}
.page-hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(330px,.6fr);gap:64px;align-items:stretch;padding:52px 0 48px;border-bottom:1px solid var(--line)}
.eyebrow{margin:0 0 18px;display:flex;align-items:center;gap:11px;color:var(--gold);font:700 11px/1.4 var(--font-mono);letter-spacing:1.25px;text-transform:uppercase}
.eyebrow::before{content:'';width:28px;height:1px;background:currentColor}
h1{margin:0;max-width:850px;font-size:var(--type-display);font-weight:600;line-height:1.13;letter-spacing:.1px;text-wrap:balance}
h1 span{color:var(--gold);font-style:italic}
.hero-lede{max-width:760px;margin:22px 0 0;color:var(--muted);font-size:var(--type-lede);line-height:1.65}
.hero-status{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-status span{padding:8px 11px;border:1px solid var(--line);border-radius:999px;background:rgba(30,24,17,.65);color:var(--muted);font:700 10px var(--font-mono);letter-spacing:.35px;text-transform:uppercase}
.start-panel{display:flex;flex-direction:column;gap:20px;min-width:0;padding:25px;border:1px solid rgba(201,167,93,.28);border-radius:18px;background:linear-gradient(145deg,rgba(40,32,23,.95),rgba(23,19,13,.92));box-shadow:0 26px 60px rgba(0,0,0,.25)}.start-panel__copy p{margin:0;color:var(--gold);font:700 9px var(--font-mono);letter-spacing:.8px;text-transform:uppercase}.start-panel__copy h2{margin:7px 0 0;font-size:25px;line-height:1.12}.start-panel__copy>span{display:block;margin-top:9px;color:var(--muted);font-size:12px;line-height:1.5}.start-panel__path{display:grid;grid-template-columns:1fr;list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.start-panel__path li{position:relative;display:grid;grid-template-columns:24px 78px 1fr;gap:8px;align-items:baseline;min-width:0;padding:9px 0;border-bottom:1px solid var(--line)}.start-panel__path span,.start-panel__path strong,.start-panel__path small{display:block}.start-panel__path span{color:var(--gold);font:700 8px var(--font-mono)}.start-panel__path strong{font-size:12px}.start-panel__path small{color:var(--faint);font:8px/1.4 var(--font-mono)}.start-panel>a{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;margin-top:auto;padding:10px 13px;border-radius:8px;background:var(--gold);color:var(--color-canvas);font:700 9px var(--font-mono);text-decoration:none;text-transform:uppercase;white-space:nowrap}.start-panel>a:focus-visible{outline:2px solid var(--text);outline-offset:3px}
.journey-index{display:grid;grid-template-columns:repeat(4,1fr);margin:0;border-bottom:1px solid var(--line)}
.journey-link{--chapter:var(--gold);position:relative;display:grid;grid-template-columns:auto 1fr;gap:13px;align-items:center;min-height:82px;padding:16px 18px;color:var(--muted);text-decoration:none;border-right:1px solid var(--line);transition:background .18s ease,color .18s ease}
.journey-link:last-child{border-right:0}.journey-link:hover,.journey-link:focus-visible{background:rgba(255,255,255,.025);color:var(--text)}
.journey-link:focus-visible{outline:2px solid var(--chapter);outline-offset:-2px}
.journey-link::after{content:'';position:absolute;left:18px;right:18px;bottom:-1px;height:2px;background:var(--chapter);transform:scaleX(0);transform-origin:left;transition:transform .18s ease}
.journey-link:hover::after,.journey-link:focus-visible::after{transform:scaleX(1)}
.journey-link__number{color:var(--chapter);font:700 12px var(--font-mono)}
.journey-link strong{display:block;color:inherit;font-size:14px}.journey-link small{display:block;margin-top:4px;color:var(--faint);font:10px/1.35 var(--font-mono)}
.catalog-layout{display:grid;grid-template-columns:minmax(0,1fr) 350px;gap:52px;padding-top:64px;align-items:start}
.chapters{min-width:0}.chapter{--chapter:var(--gold);position:relative;padding:0 0 72px;scroll-margin-top:90px}
.chapter:last-child{padding-bottom:16px}.chapter-head{display:grid;grid-template-columns:64px minmax(0,1fr);gap:18px;margin-bottom:26px}
.chapter-number{padding-top:5px;color:var(--chapter);font:700 13px var(--font-mono);letter-spacing:1px}
.chapter-kicker{margin:0 0 5px;color:var(--chapter);font:700 10px var(--font-mono);letter-spacing:1.2px;text-transform:uppercase}
.chapter h2{margin:0;font-size:var(--type-section);font-weight:600;line-height:1.2;letter-spacing:.05px}
.chapter-prompt{margin:8px 0 0;color:var(--text);font-size:var(--type-lede);line-height:1.5;font-style:italic}
.chapter-description{max-width:780px;margin:12px 0 0;color:var(--muted);font-size:var(--type-body);line-height:1.65}
.lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-left:82px}
.lesson-card{position:relative;min-height:196px;padding:19px 20px;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:13px;background:linear-gradient(145deg,rgba(40,32,23,.78),rgba(23,19,13,.88));color:inherit;text-decoration:none;overflow:hidden;cursor:default;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease}
.lesson-card::before{content:'';position:absolute;inset:0 auto 0 0;width:3px;background:var(--chapter);opacity:.8}
.lesson-card::after{content:'';position:absolute;width:170px;height:170px;right:-85px;top:-85px;border-radius:50%;background:var(--chapter);opacity:.035;transition:opacity .2s ease,transform .2s ease}
.lesson-card:hover,.lesson-card:focus-visible,.lesson-card.is-active{transform:translateY(-3px);border-color:color-mix(in srgb,var(--chapter) 65%,var(--line));box-shadow:0 20px 45px rgba(0,0,0,.24)}
.lesson-card:hover::after,.lesson-card:focus-visible::after,.lesson-card.is-active::after{opacity:.09;transform:scale(1.12)}
.lesson-card:focus-visible{outline:2px solid var(--chapter);outline-offset:3px}
.lesson-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.lesson-number{color:var(--chapter);font:700 11px var(--font-mono);letter-spacing:.8px}
.lesson-status{padding:5px 7px;border:1px solid rgba(255,255,255,.08);border-radius:999px;color:var(--faint);font:700 8px var(--font-mono);letter-spacing:.6px;text-transform:uppercase}
.lesson-card h3{margin:12px 0 0;font-size:var(--type-card-title);font-weight:600;line-height:1.35;letter-spacing:.05px}
.lesson-question{margin:8px 0 0;color:var(--chapter);font-size:13px;line-height:1.45;font-style:italic}
.lesson-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:auto 0 0;padding-top:13px;border-top:1px solid rgba(255,255,255,.065)}
.lesson-meta div:last-child{text-align:right}.lesson-meta dt{color:var(--faint);font:700 8px var(--font-mono);letter-spacing:.7px;text-transform:uppercase}.lesson-meta dd{margin:5px 0 0;color:var(--text);font:10.5px/1.35 var(--font-mono)}
.system-panel{align-self:stretch;min-width:0;position:relative}.system-panel__sticky{position:sticky;top:76px;max-height:calc(100vh - 92px);padding:20px;border:1px solid var(--line);border-radius:18px;background:rgba(23,19,13,.9);box-shadow:0 24px 60px rgba(0,0,0,.28);backdrop-filter:blur(16px);overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:rgba(201,167,93,.34) transparent}
.panel-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:15px;border-bottom:1px solid var(--line)}
.panel-heading p{margin:0;color:var(--gold);font:700 10px var(--font-mono);letter-spacing:1.1px;text-transform:uppercase}.panel-heading span{color:var(--faint);font:9px var(--font-mono)}
.system-map{display:grid;justify-items:center;padding:20px 5px 18px}
.system-node{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;background:var(--surface);text-align:center;opacity:.46;transition:opacity .18s ease,border-color .18s ease,background .18s ease,transform .18s ease}
.system-node small{display:block;margin-bottom:3px;color:var(--faint);font:8px var(--font-mono);letter-spacing:.7px;text-transform:uppercase}.system-node strong{font-size:12px;font-weight:600}
.system-node.is-active{opacity:1;transform:translateY(-1px);border-color:rgba(208,173,100,.65);background:linear-gradient(135deg,rgba(208,173,100,.12),var(--surface));box-shadow:0 0 22px rgba(208,173,100,.07)}
.system-node.is-active small{color:var(--gold)}.system-arrow{padding:4px 0;color:#4b5862;font:11px var(--font-mono)}
.system-map__pair{display:grid;grid-template-columns:1fr 1fr;gap:8px;width:100%;margin-top:8px}.system-map__pair+.system-arrow{margin-top:4px}
.active-lesson{padding:17px;border-radius:12px;background:var(--surface);border:1px solid rgba(255,255,255,.055)}
.active-lesson__label{margin:0;color:var(--faint);font:700 8px var(--font-mono);letter-spacing:.8px;text-transform:uppercase}.active-lesson h2{margin:7px 0 0;font-size:21px}.active-lesson>p:not(.active-lesson__label){min-height:42px;margin:7px 0 15px;color:var(--muted);font-size:12.5px;line-height:1.45}
.active-lesson dl{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}.active-lesson dt{color:var(--faint);font:700 8px var(--font-mono);text-transform:uppercase}.active-lesson dd{margin:4px 0 0;color:var(--text);font:10px/1.35 var(--font-mono)}
.catalog-footer{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:68px;padding:28px 0 12px;border-top:1px solid var(--line);color:var(--muted);font-size:13px}.catalog-footer p{margin:0}.catalog-footer strong{color:var(--text)}.catalog-footer a{color:var(--gold);font:700 11px var(--font-mono);text-decoration:none}.catalog-footer a:hover{text-decoration:underline}
[data-color="gold"]{--chapter:var(--gold)}[data-color="orange"]{--chapter:var(--orange)}[data-color="green"]{--chapter:var(--green)}[data-color="purple"]{--chapter:var(--purple)}
@media(max-width:1100px){main{padding-inline:34px}.page-hero{grid-template-columns:1fr 320px;gap:36px}.catalog-layout{grid-template-columns:minmax(0,1fr) 300px;gap:30px}.lesson-grid{margin-left:0}.chapter-head{grid-template-columns:50px 1fr}.system-panel__sticky{top:76px}}
@media(max-width:820px){main{padding:34px 20px 40px}.page-hero{grid-template-columns:1fr;gap:34px;padding:34px 0}.start-panel{max-width:580px}.start-panel__path{grid-template-columns:1fr 1fr;column-gap:18px}.journey-index{grid-template-columns:1fr 1fr}.journey-link{min-height:72px;border-bottom:1px solid var(--line)}.catalog-layout{display:flex;flex-direction:column;padding-top:38px}.system-panel{order:-1;width:100%}.system-panel__sticky{position:static;max-height:none;overflow:visible}.system-map{grid-template-columns:repeat(4,1fr);gap:8px;align-items:stretch}.system-arrow{display:none}.system-map__pair{display:contents}.system-node{min-height:62px;display:flex;flex-direction:column;justify-content:center}.active-lesson{margin-top:8px}.chapter{padding-bottom:56px}.lesson-grid{grid-template-columns:1fr}.lesson-card{min-height:0}.catalog-footer{align-items:flex-start;flex-direction:column}.journey-link,.lesson-card{min-height:44px}}
@media(max-width:520px){h1{font-size:var(--type-display-mobile)}.hero-lede{font-size:var(--type-lede)}.start-panel{padding:18px}.start-panel__path{grid-template-columns:1fr}.start-panel__path li{padding-block:8px}.start-panel>a{width:100%;justify-content:center}.journey-index{grid-template-columns:1fr}.journey-link{border-right:0}.chapter-head{grid-template-columns:1fr;gap:8px}.chapter-number{padding:0}.chapter h2{font-size:24px}.system-map{grid-template-columns:1fr 1fr}.lesson-card{padding:19px}.lesson-meta{grid-template-columns:1fr}.lesson-meta div:last-child{text-align:left}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.catalog-skip-link,.journey-link::after,.lesson-card,.lesson-card::after,.system-node{transition:none!important}}
.course-primer,.technique-synthesis{margin-top:24px;padding:24px;border:1px solid rgba(201,167,93,.28);border-radius:16px;background:rgba(23,19,13,.78)}.course-primer>header,.technique-synthesis>header{display:flex;align-items:baseline;gap:18px}.course-primer>header p,.technique-synthesis>header p{margin:0;color:var(--gold);font:700 10px var(--font-mono);text-transform:uppercase}.course-primer>header h2,.technique-synthesis>header h2{margin:0;font-size:24px}.course-primer>header span,.technique-synthesis>header span{margin-left:auto;color:var(--faint);font:10px var(--font-mono)}.course-primer dl{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin:18px 0 0}.course-primer dl div,.technique-synthesis article{padding:14px;border:1px solid var(--line);border-radius:10px;background:var(--surface)}.course-primer dt,.technique-synthesis small{color:var(--gold);font:700 10px var(--font-mono)}.course-primer dd,.technique-synthesis p{margin:7px 0 0;color:var(--muted);font-size:12px;line-height:1.55}.technique-synthesis{margin-top:38px}.technique-synthesis>div{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:18px}.technique-synthesis strong{display:block;margin-top:7px;font-size:15px;line-height:1.35}.system-node small,.active-lesson__label,.active-lesson dt{font-size:9px}
@media(max-width:1100px){.course-primer dl,.technique-synthesis>div{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.course-primer>header,.technique-synthesis>header{align-items:flex-start;flex-direction:column;gap:7px}.course-primer>header span,.technique-synthesis>header span{margin-left:0}.course-primer dl,.technique-synthesis>div{grid-template-columns:1fr}}
.lesson-card.is-complete .lesson-status{border-color:rgba(143,190,114,.45);color:#a9cf92}.lesson-card.is-complete::before{background:#8fbe72}

/* Match the compact type hierarchy used by the LLM Improvement Visualizer. */
.start-panel__copy h2{font-size:20px;line-height:1.2}.start-panel__copy>span{font-size:var(--type-body);line-height:1.55}
.active-lesson h2{font-size:var(--type-card-title);line-height:1.35}.active-lesson>p:not(.active-lesson__label){font-size:var(--type-body);line-height:1.5}
.course-primer>header h2,.technique-synthesis>header h2{font-size:20px;line-height:1.3}