@font-face{font-family:Course;src:local('Avenir Next'),local('Segoe UI');font-display:swap}
:root{--paper:#faf8f3;--white:#fffefb;--ink:#25232b;--muted:#69636d;--line:#ded7cc;--gold:#956b25;--purple:#65448c;--teal:#206d6d;--night:#19161e;--sans:Course,system-ui,-apple-system,sans-serif;--serif:Georgia,serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.65 var(--sans)}a{color:var(--purple);text-underline-offset:4px}button,input,select{font:inherit}button{cursor:pointer}img,video{max-width:100%;display:block}img{height:auto}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #8662b7;outline-offset:4px}[hidden]{display:none!important}.skip{position:absolute;left:20px;top:-70px;background:white;padding:10px;z-index:100}.skip:focus{top:10px}
.masthead{background:var(--night);color:#eee8e1;position:sticky;top:0;z-index:20;border-bottom:1px solid #4d3c2c}.masthead>div{max-width:1440px;margin:auto;display:flex;align-items:center;gap:28px;padding:18px 32px}.brand{display:flex;align-items:center;gap:12px;margin-right:auto;text-decoration:none;color:#d5c6ae;white-space:nowrap;font-size:12px}.brand img{width:175px}.brand .pixie{width:47px}.masthead nav{display:flex;align-items:center;gap:25px}.masthead nav a{color:#eee5dc;text-decoration:none;font-size:14px}.masthead nav a[aria-current]{color:#f3ce89;border-bottom:1px solid #d2a753}.nav-toggle{display:none;background:none;border:1px solid #8e7c67;color:white;padding:6px 12px}.support-strip{font-size:12px;text-align:center;padding:9px 20px;background:#eee9e1;color:#655b62}.support-strip a{color:#5d3e81}
.wrap{max-width:1320px;margin:auto;padding:0 32px}.eyebrow{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-weight:750;margin:0 0 18px}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.15;letter-spacing:-.025em}h1{font-size:clamp(38px,5vw,70px);margin:0 0 22px}h2{font-size:34px;margin:40px 0 18px}h3{font-size:25px;margin:25px 0 12px}p{margin:0 0 20px}.lede{font-size:21px;line-height:1.6;color:var(--muted);max-width:760px}.hero-course{padding:65px 0 43px;display:grid;grid-template-columns:1fr 270px;align-items:center;gap:70px}.hero-course .mascot{max-width:250px;filter:drop-shadow(0 12px 15px #8a694027)}.meta{font-size:13px;color:var(--muted);display:flex;gap:20px;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;text-decoration:none;color:white;background:var(--purple);border:1px solid var(--purple);padding:12px 20px;border-radius:5px;font-size:14px;font-weight:650}.button.secondary{color:var(--purple);background:transparent;border-color:#b6a9bf}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0}.search-box{padding:25px 0 28px;border-block:1px solid var(--line)}.search-box label{display:block;font-weight:700;font-size:14px;margin-bottom:8px}.search-box input{width:min(620px,100%);border:1px solid #b8aebc;background:white;color:var(--ink);padding:15px 18px;border-radius:6px}.search-box .status{font-size:13px;color:var(--muted);min-height:24px;margin:8px 0 0}.group-nav{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}.group-nav a{font-size:12px;text-decoration:none;border:1px solid var(--line);border-radius:30px;padding:8px 13px;color:var(--muted)}.group-heading{display:flex;justify-content:space-between;align-items:baseline;gap:15px;margin-top:40px;border-bottom:1px solid var(--line)}.group-heading h2{margin:0 0 20px}.group-heading span{font-size:12px;color:var(--muted)}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:25px 0 55px}.lesson-card{background:var(--white);border:1px solid var(--line);border-radius:8px;overflow:hidden;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}.lesson-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px #36284510;border-color:#b69561}.lesson-card img{width:100%;aspect-ratio:16/9;object-fit:cover}.card-copy{padding:21px}.card-copy h3{margin:7px 0 12px;font-size:26px}.card-copy p{font-size:14px;color:var(--muted);margin:0}.card-number{color:var(--gold);font-size:11px;letter-spacing:.12em;text-transform:uppercase}.card-foot{border-top:1px solid var(--line);padding-top:13px;margin-top:20px;display:flex;justify-content:space-between;color:var(--muted);font-size:12px}.no-results{padding:25px;background:white;border:1px solid var(--line)}
.chapter-layout{max-width:1440px;margin:auto;padding:45px 32px 80px;display:grid;grid-template-columns:240px minmax(0,940px);gap:60px}.chapter-nav{position:sticky;top:110px;max-height:calc(100vh - 135px);overflow:auto;align-self:start;padding-right:8px;font-size:13px}.chapter-nav summary{font-weight:700;margin:20px 0;cursor:pointer}.chapter-nav ol{list-style:none;padding:0;margin:0}.chapter-nav li a{display:flex;gap:10px;text-decoration:none;color:var(--muted);padding:8px;border-left:2px solid transparent;line-height:1.5}.chapter-nav li a span{min-width:21px;color:var(--gold);font-size:11px}.chapter-nav li a[aria-current]{background:#eee7f3;color:var(--purple);border-color:var(--purple);font-weight:700}.chapter-nav input{width:100%;padding:9px;border:1px solid var(--line);border-radius:4px;font-size:13px;background:white}.chapter-head h1{font-size:clamp(36px,4vw,57px)}.chapter-head{margin-bottom:30px}.video-wrap{background:var(--night);border-radius:8px;overflow:hidden;box-shadow:0 12px 30px #33234418;margin:25px 0 14px}.video-wrap video{width:100%;aspect-ratio:16/9;background:var(--night)}.video-note{font-size:12px;color:var(--muted)}.on-this-page{border-block:1px solid var(--line);padding:23px 0;margin:30px 0 40px}.on-this-page b{font-size:12px;text-transform:uppercase;letter-spacing:.1em}.on-this-page ul{display:flex;flex-wrap:wrap;gap:8px 24px;list-style:none;padding:0;margin:12px 0 0}.on-this-page a{font-size:14px}.chapter-body p,.chapter-body ol{max-width:780px}.chapter-body li{padding-left:4px;margin-bottom:10px}.chapter-body h2{font-size:32px;scroll-margin-top:110px}.chapter-body h2:before{content:'';display:block;width:30px;border-top:2px solid #bb965c;margin-bottom:15px}.screenshot{margin:30px 0 40px;break-inside:avoid}.screenshot a{display:block}.screenshot img{width:100%;border:1px solid #c4bcc9;border-radius:5px;box-shadow:0 8px 28px #28203010}.screenshot figcaption{font-size:13px;color:var(--muted);padding:12px 2px;line-height:1.5}.screenshot figcaption span{display:block;font-size:11px;margin-top:4px}.tip{background:#f1ecdf;border-left:3px solid #b99556;padding:23px 27px;margin:35px 0}.tip strong{display:block;font-size:12px;color:#7e5d26;letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}.tip p{margin:0;font-size:15px}.related{padding:20px 0;border-top:1px solid var(--line)}.related ul{list-style:none;padding:0;display:flex;gap:10px 20px;flex-wrap:wrap;font-size:14px}.next-prev{display:grid;grid-template-columns:1fr 1fr;gap:20px;border-top:1px solid var(--line);padding-top:28px;margin-top:25px}.next-prev a{text-decoration:none;display:block;font-size:18px}.next-prev small{display:block;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px}.next-prev a:last-child{text-align:right}.footer{background:var(--night);color:#d2c6b6;padding:35px 32px;margin-top:50px}.footer>div{max-width:1320px;margin:auto;display:flex;align-items:center;gap:24px;flex-wrap:wrap;font-size:13px}.footer b{margin-right:auto;font-family:var(--serif);font-size:21px;font-weight:400}.footer a{color:#dfc78e}.footer small{flex-basis:100%;color:#aa9fae;font-size:11px}.print-options{background:white;border:1px solid var(--line);border-radius:6px;padding:22px;margin:25px 0}.print-options h2{margin:0 0 12px;font-size:26px}.print-options select{padding:7px;border:1px solid var(--line);background:white;color:var(--ink);margin:5px 10px 12px 0}.manual-article{padding-bottom:40px;border-bottom:1px solid var(--line);margin-bottom:50px}.manual-article h1{font-size:42px}.manual-search-status{margin-top:10px;font-size:12px}.manual-cover{padding:20px 0 35px}.manual-cover img{width:220px}.manual-toc{list-style:none;padding:0;columns:2;column-gap:40px}.manual-toc li{break-inside:avoid;margin-bottom:8px;font-size:14px}.manual-toc a{display:flex;gap:12px;text-decoration:none}.manual-toc span{color:var(--gold)}mark{background:#f8dfa3;color:inherit;padding:0 2px}.print-only{display:none}.preview-controls{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:25px 0}.preview-controls select{border:1px solid var(--line);padding:12px;background:white;min-width:220px}.preview-image{width:100%;border:1px solid var(--line);border-radius:8px;box-shadow:0 14px 40px #37243b15}.preview-caption{padding:15px 0;color:var(--muted);font-size:14px}.preview-thumb-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.preview-thumb-grid button{background:white;border:1px solid var(--line);border-radius:6px;padding:0;text-align:left;color:var(--ink);overflow:hidden}.preview-thumb-grid button[aria-pressed=true]{outline:3px solid var(--purple);outline-offset:2px}.preview-thumb-grid span{display:block;padding:10px 13px;font-size:13px}.support-grid{display:grid;grid-template-columns:1fr 1fr;gap:35px;margin:35px 0}.support-grid section{border-top:1px solid var(--line)}dialog{border:0;border-radius:7px;max-width:96vw;max-height:96vh;padding:15px;background:#fffefb;box-shadow:0 25px 90px #0008}dialog::backdrop{background:#15121cdd}dialog img{max-height:82vh;max-width:90vw;object-fit:contain}dialog button{display:block;margin:0 0 10px auto;border:1px solid var(--line);background:white;border-radius:4px;padding:7px 12px}dialog p{font-size:13px;margin:10px 0 0}.sparkle{pointer-events:none}.pixie-dust{position:relative}.pixie-dust:before,.pixie-dust:after{content:'✦';position:absolute;color:#d9b16c;font:18px Georgia;animation:twinkle 5s ease-in-out infinite;pointer-events:none}.pixie-dust:before{top:-13px;left:25%;}.pixie-dust:after{right:0;bottom:-9px;font-size:11px;animation-delay:2s}@keyframes twinkle{0%,100%{opacity:.25;transform:scale(.75)}50%{opacity:.9;transform:scale(1.1)}}
@media(max-width:1100px){.chapter-layout{grid-template-columns:200px minmax(0,1fr);gap:30px}.masthead nav{gap:16px}.brand img{width:145px}.brand .pixie{width:37px}.brand .by{display:none}.hero-course{gap:30px;grid-template-columns:1fr 200px}}
@media(max-width:800px){.masthead>div{padding:15px 20px}.nav-toggle{display:block}.masthead nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--night);padding:20px;flex-direction:column;align-items:stretch}.masthead nav.open{display:flex}.hero-course{display:block;padding:40px 0}.hero-course .mascot{display:none}.wrap{padding:0 20px}.lesson-grid{grid-template-columns:1fr 1fr}.chapter-layout{display:block;padding:28px 20px}.chapter-nav{position:static;max-height:none;padding:0 0 20px}.chapter-nav ol{max-height:300px;overflow:auto}.chapter-nav summary{margin:10px 0}.chapter-head h1{font-size:39px}.support-grid{grid-template-columns:1fr}.preview-thumb-grid{grid-template-columns:repeat(2,1fr)}.footer>div{gap:14px}.footer b{flex-basis:100%}.group-heading h2{font-size:28px}.manual-toc{columns:1}}
@media(max-width:500px){.lesson-grid{grid-template-columns:1fr}.hero-course h1{font-size:45px}.lede{font-size:18px}.chapter-body h2{font-size:29px}.next-prev{gap:12px}.next-prev a{font-size:16px}.brand img{width:154px}.brand .pixie{width:39px}.support-strip{font-size:11px}.meta{gap:9px 16px}.group-heading{align-items:flex-start}.group-heading span{font-size:10px;white-space:nowrap;margin-top:6px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.pixie-dust:before,.pixie-dust:after{animation:none}.lesson-card{transition:none}.lesson-card:hover{transform:none}}
@media print{@page{size:auto;margin:17mm 16mm 19mm}body{background:white;color:#111;font:10.5pt/1.5 Arial,sans-serif}.masthead,.support-strip,.footer,.chapter-nav,.video-wrap,.video-note,.on-this-page,.related,.next-prev,.actions,.search-box,.print-options,.group-nav,.no-print,dialog{display:none!important}.chapter-layout,.wrap{display:block;max-width:none;padding:0;margin:0}.manual-article[hidden]{display:block!important}.print-only{display:block}.chapter-head h1,.manual-article h1{font-size:26pt}.lede{font-size:12pt;color:#444}.chapter-body h2{font-size:17pt;break-after:avoid;margin-top:8mm}.chapter-body h2:before{display:none}p,li{widows:3;orphans:3}figure,table,.tip{break-inside:avoid}.screenshot{margin:5mm 0}.screenshot img{max-height:95mm;object-fit:contain;box-shadow:none;border:.2mm solid #bbb}.screenshot figcaption{font-size:8.5pt;padding:2mm 0}.screenshot figcaption span{display:none}a{color:#222;text-decoration:none}.tip{background:#f5f2e9;padding:4mm}.manual-article{break-before:page;border:0;margin:0;padding:0}.manual-cover{break-after:page}.manual-toc{columns:2}.manual-toc li{font-size:9pt}.eyebrow{font-size:8pt}.meta{font-size:8pt}.chapter-body p,.chapter-body ol{max-width:none}mark{background:none}}
.preview-head{padding:65px 0 25px}.profile-gallery>label,.profile-directory>label{display:block;font-weight:700;font-size:14px;margin-bottom:8px}.profile-gallery select,.profile-directory input{padding:12px 15px;background:white;border:1px solid #b8aebc;border-radius:5px;max-width:100%}.profile-gallery .screenshot{margin-top:20px}.profile-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.profile-buttons button{background:transparent;border:1px solid var(--line);border-radius:30px;padding:8px 14px;font-size:13px;color:var(--ink)}.profile-buttons button[aria-pressed=true]{background:var(--purple);color:white;border-color:var(--purple)}.profile-directory{padding:15px 0 60px}.profile-directory ul{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0 28px;padding:0;list-style:none}.profile-directory li{padding:12px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;font-size:14px}.profile-directory li span,#profile-count{font-size:12px;color:var(--muted)}mark{background:#f4dfa5;color:inherit;border-radius:2px}.offline-banner{padding:15px 25px;background:var(--night);color:#eee8df;display:flex;align-items:center;gap:22px;flex-wrap:wrap}.offline-banner a{color:#eac58c}.offline-banner strong{margin-right:auto}.offline-banner+.support-strip{font-size:14px}.offline .chapter-layout{padding-top:25px}.offline .chapter-nav{top:20px;max-height:calc(100vh - 40px)}@media(max-width:800px){.profile-directory ul{grid-template-columns:repeat(2,minmax(0,1fr))}.profile-gallery select{width:100%}}@media print{.offline-banner{display:none!important}}

/* The on-screen chapter rail is one column; printed contents remain two. */
.chapter-nav .manual-toc{columns:1}