:root{--ink:#20363a;--paper:#faf6ed;--accent:#a1442b;--line:#c8d0c7;--muted:#e8ede6;--white:#fffef8;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}body{margin:0;background-image:linear-gradient(#20363a06 1px,transparent 1px),linear-gradient(90deg,#20363a06 1px,transparent 1px);background-size:36px 36px}a{color:inherit;text-underline-offset:4px}button,a,summary,input,select,textarea{-webkit-tap-highlight-color:transparent}a:hover{color:var(--accent)}.skip{position:absolute;inset-block-start:-80px;padding:15px;background:white;z-index:20}.skip:focus{inset-block-start:0}.topbar{text-align:center;border-bottom:1px solid var(--line);padding:11px;font-size:12px;letter-spacing:.08em;text-transform:uppercase}header{max-width:1320px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:22px;padding:25px 40px;border-bottom:1px solid 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p{font-size:12px;line-height:1.8}footer a{display:inline-block;margin:5px 12px 5px 0}footer .button{border-color:var(--paper);color:var(--paper)}.sticky{position:fixed;bottom:0;inset-inline:0;background:var(--white);border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:13px max(25px,calc((100vw - 1240px)/2));gap:20px;z-index:8;box-shadow:0 -5px 20px #20363a0c}.sticky span{font-size:13px}.sticky a{font-size:14px;color:var(--accent);font-weight:bold;white-space:nowrap}.tool{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:25px;margin:30px 0;scroll-margin-top:20px}.tool p{font-size:13px;line-height:1.7}.fields{display:grid;grid-template-columns:1fr 1fr;gap:17px;margin:18px 0}label{display:grid;gap:8px;font-size:13px;line-height:1.4}input,select,textarea{background:#fff;border:1px solid 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@media(max-width:760px){header{padding:20px;flex-wrap:wrap;gap:18px}nav{width:100%;justify-content:space-between;gap:8px}nav>.button{padding:10px 12px}main{padding:0 20px}.hero{grid-template-columns:1fr;padding:40px 0;gap:30px}.hero .ledger-art{min-height:260px;width:90%;justify-self:center}.receipt{width:66%;padding:18px;gap:9px}.receipt b{font-size:45px}.stamp{padding:15px;font-size:10px}.layout{display:block;padding-top:25px}.rail{margin-top:20px}.app-card{grid-template-columns:minmax(0,1fr) 100px;padding:24px 22px;gap:16px}.product{width:100px}.app-terms{grid-column:1/-1}.app-copy h2{font-size:27px}.app-identity{gap:9px;flex-wrap:wrap}.app-identity strong{font-size:23px}.app-identity img{width:48px;height:48px}.chapter{padding:28px 0;grid-template-columns:25px 1fr;gap:9px}.chapter h2{font-size:27px}.chapter p{font-size:15px}.deck{font-size:17px}.end-app{padding:25px}.sticky span{font-size:11px}.sticky{padding:12px 20px;gap:12px}.sticky a{font-size:12px}footer{grid-template-columns:1fr;padding:30px 20px 100px;gap:25px}.tool{padding:20px}.fields{grid-template-columns:1fr}.page-grid{gap:9px}.page-grid a{padding:12px;font-size:12px}.topbar{font-size:10px}.hero-actions .button{width:100%}}
@media(max-width:370px){main{padding:0 15px}.app-card{padding:20px 16px;grid-template-columns:minmax(0,1fr) 84px;gap:12px}.product{width:84px}.badges img{width:120px}.app-copy h2{font-size:23px}.app-identity strong{font-size:21px}header{padding:18px 15px}summary{padding:10px;font-size:12px}.page-grid{grid-template-columns:1fr}}
@media print{header,.sticky,footer,.hero-art,.rail,.hero-actions,.end-app,nav,.topbar,.next,button{display:none}body{background:white}main{padding:0}.hero{padding:10px 0;display:block}.layout{display:block}.chapter{break-inside:avoid}a{color:black}}
/* First Ribbon: lavender training-studio and lime course markers. */
:root{--ink:#302647;--paper:#f7f4ff;--accent:#604591;--line:#ccc1dc;--muted:#e5dcf3;--white:#fffefb}body{background-image:none}.topbar{background:#ded0f4}header{border-bottom:0}.brand{letter-spacing:.11em}.hero{background:#e9def8;border-radius:36px;padding:48px;margin:25px 0;grid-template-columns:1.3fr 1fr;gap:38px;border:0}.hero h1{font-family:Arial,Helvetica,sans-serif;font-weight:750;letter-spacing:-.045em;line-height:1.06}.hero .eyebrow{font-family:monospace}.ledger-art{background:#c9e79c;transform:rotate(3deg);border:0;border-radius:35px;min-height:360px;overflow:hidden;padding:30px}.ledger-art>strong{font:700 36px/1.15 Arial;display:block;letter-spacing:-.04em;margin:15px 0;color:#302647}.course-mark{display:flex;align-items:center;gap:12px;margin:30px 0}.course-mark b{border:2px solid #302647;border-radius:50%;width:42px;height:42px;display:grid;place-items:center;font:700 15px monospace}.course-mark i{flex:1;height:3px;background:#302647;transform:rotate(-20deg)}.ribbon{position:absolute;inset-inline-end:10px;inset-block-end:20px;background:#604591;color:white;padding:20px;font:12px/1.5 monospace;transform:rotate(-12deg);border-radius:50%}.chapter{border-bottom:0;background:#fffefb;border-radius:20px;padding:28px;margin:20px 0;gap:18px}.chapter .num{background:#c9e79c;border-radius:50%;width:34px;height:34px;display:grid;place-items:center;padding:0;color:#302647}.chapter h2{font-family:Arial,sans-serif;font-weight:650;font-size:25px}.note{border:0;border-radius:24px;background:#c9e79c}.note h2{font-family:Arial,sans-serif;font-weight:650}.tool{border:2px solid #604591;border-radius:24px}.tool h2{font-family:Arial,sans-serif;font-weight:650}.page-grid a{border-radius:14px;background:#e9def8;border:0}.app-card{border-color:#b7a7ca;box-shadow:0 6px 0 #e3d9f0}.end-app{border:0;border-radius:28px;background:#c9e79c}.end-app h2{font-family:Arial,sans-serif;font-weight:650}.sources{padding:15px}.blog-card{padding:20px}.button,button{border-radius:40px}.primary,button[type=submit]{background:#604591}footer{background:#302647}.sticky{border-top-color:#b7a7ca}.translation{border-left-color:#604591}
@media(max-width:760px){.hero{padding:27px 20px;margin:20px -5px;display:block}.hero .ledger-art{margin-top:30px;min-height:270px;width:100%;transform:rotate(1deg)}.ledger-art>strong{font-size:30px}.chapter{padding:22px 18px;gap:15px;grid-template-columns:32px 1fr}.chapter h2{font-size:24px}.hero h1{font-size:39px}.course-mark{margin:22px 0}.ribbon{padding:15px;font-size:10px}}
@media(max-width:370px){.hero{padding:25px 15px}.hero h1{font-size:35px}.chapter{padding:20px 13px;gap:11px}}