:root{--paper:#F7F5F0;--paper2:#EEEAE2;--ink:#15171C;--ink2:#4B4E57;--rule:#DAD5CB;--board:#14161B;--amber:#F5B83D;--pink:#ff186b;--link:#A80E48;--max:1180px;
--head:Bahnschrift,"DIN Alternate","Arial Narrow","Roboto Condensed",system-ui,sans-serif;--sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--mono:Consolas,ui-monospace,"Cascadia Mono","Liberation Mono",monospace}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.64 var(--sans)}
img{max-width:100%;height:auto;display:block}
a{color:var(--link);text-underline-offset:3px}a:hover{color:var(--ink)}
:focus-visible{outline:3px solid var(--pink);outline-offset:2px}
.rn-skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 14px}.rn-skip:focus{left:8px;z-index:9}
.rn-top{background:#fff;border-bottom:1px solid var(--rule)}
.rn-top__in{max-width:var(--max);margin:0 auto;padding:8px 20px;display:flex;align-items:center;justify-content:space-between;gap:12px 18px;flex-wrap:wrap}
.rn-top__in>*{min-width:0}
.rn-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);min-height:44px;min-width:0}
.rn-brand img{width:96px;height:auto}
.rn-brand span{font:700 17px/1.15 var(--head);letter-spacing:.01em;min-width:0;overflow-wrap:anywhere}.rn-brand em{font-style:normal;font-weight:400;color:var(--ink2)}
.rn-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:0 2px}
.rn-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 9px;text-decoration:none;color:var(--ink);font:500 15px var(--sans)}
.rn-nav a:hover{background:var(--paper2)}.rn-nav a[aria-current]{box-shadow:inset 0 -3px 0 var(--pink)}
.rn-board{background:var(--board);color:#EDEAE3}
.rn-board__in{max-width:var(--max);margin:0 auto;padding:6px 20px;display:flex;align-items:center;gap:6px 20px;flex-wrap:wrap}
.rn-board__title{margin:0;font:600 12px/1.2 var(--mono);text-transform:uppercase;letter-spacing:.07em;color:#BDB8AE}
.rn-board ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:4px 22px}
.rn-board li{display:flex;align-items:center;gap:10px;min-height:40px}
.rn-board__code{font:700 14px var(--mono);background:#2A2D34;color:#fff;padding:3px 7px;border-radius:3px}
.rn-board__pair{display:flex;flex-direction:column;line-height:1.1}
.rn-board__lab{font:500 10px var(--mono);text-transform:uppercase;letter-spacing:.06em;color:#A9A49A}
.rn-board__pair b{font:700 16px var(--mono);color:var(--amber);letter-spacing:.04em}
.rn-board__gap{font:700 13px var(--mono);color:#FFD1E0}
.rn-board__more{color:#fff;font-size:14px;display:inline-flex;align-items:center;min-height:44px;margin-left:auto}
.rn-board__more:hover{color:var(--amber)}
.rn-main{max-width:var(--max);margin:0 auto;padding:6px 20px 40px}
.rn-crumbs{display:flex;gap:6px;align-items:center;font-size:14px;color:var(--ink2);flex-wrap:wrap}
.rn-crumbs a{display:inline-flex;align-items:center;min-height:44px;min-width:44px}
h1,h2,h3{font-family:var(--head);line-height:1.15;color:var(--ink);letter-spacing:.005em}
h1{font-size:clamp(31px,4.3vw,50px);margin:16px 0 10px;max-width:24ch;font-weight:700}
h2{font-size:clamp(24px,2.6vw,32px);margin:0 0 14px;font-weight:700}
h3{font-size:20px;margin:22px 0 8px}
.rn-lede{font-size:19px;max-width:64ch;color:var(--ink2);margin:0 0 16px}
.rn-hero{padding:24px 0 10px}
.rn-find{display:flex;max-width:800px;margin:4px 0 12px;border:2px solid var(--ink);border-radius:6px;overflow:hidden;background:#fff}
.rn-find label{position:absolute;left:-999px}
.rn-find input{flex:1;min-width:0;border:0;padding:0 16px;font:18px var(--sans);min-height:60px;color:var(--ink);background:#fff}
.rn-find input:focus{outline:none;box-shadow:inset 0 0 0 3px var(--pink)}
.rn-find button{border:0;background:var(--pink);color:var(--ink);font:700 18px var(--head);letter-spacing:.02em;padding:0 28px;min-height:60px;cursor:pointer}
.rn-find button:hover{background:var(--ink);color:#fff}
.rn-sub{display:flex;flex-wrap:wrap;gap:0 20px;font-size:15px;margin:0 0 8px;padding:0;list-style:none}
.rn-sub a{display:inline-flex;align-items:center;min-height:44px;color:var(--ink);text-decoration-color:var(--pink);text-decoration-thickness:2px}
.rn-wall{padding:22px 0 18px;border-top:2px solid var(--ink)}
.rn-wall>h2{margin-bottom:6px}
.rn-wall>p{max-width:70ch;color:var(--ink2);margin:0 0 16px}
.rn-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.rn-cards>li{min-width:0}
.rn-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--rule);border-radius:6px;overflow:hidden;text-decoration:none;color:var(--ink)}
.rn-card:hover{border-color:var(--ink)}
.rn-card img{width:100%;aspect-ratio:2.1/1;object-fit:cover;background:var(--paper2)}
.rn-card__body{padding:10px 12px 12px;display:flex;flex-direction:column;gap:3px}
.rn-card b{font:700 17px/1.2 var(--head)}
.rn-card__body>span{font-size:14px;color:var(--ink2);line-height:1.45}
.rn-card i{font:600 11px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--link);font-style:normal;margin-top:4px}
.rn-sec{padding:34px 0;border-bottom:1px solid var(--rule)}
.rn-copy{max-width:76ch}.rn-copy p{margin:0 0 14px}.rn-copy ul,.rn-copy ol{padding-left:22px;margin:0 0 14px}.rn-copy li{margin:0 0 6px}
.rn-after{margin-top:18px}
.rn-split{display:grid;grid-template-columns:minmax(0,45fr) minmax(0,55fr);gap:36px;align-items:stretch}
.rn-split--flip{grid-template-columns:minmax(0,55fr) minmax(0,45fr)}.rn-split--flip .rn-fig{order:-1}
.rn-split .rn-copy{min-width:0}
.rn-fig{margin:0;display:flex;flex-direction:column;min-width:0;background:#fff;border:1px solid var(--rule);border-radius:6px;overflow:hidden}
.rn-split .rn-fig img{width:100%;height:auto}
.rn-split .rn-fig figcaption{margin-top:auto}
.rn-fig figcaption{font-size:14px;line-height:1.45;color:var(--ink2);padding:10px 14px;border-top:1px solid var(--rule);background:var(--paper)}
.rn-fig--wide{max-width:720px;margin:20px 0}
.rn-fig--wide img{width:100%;height:auto}
.rn-tablewrap{overflow-x:auto;margin:14px 0;max-width:76ch}
.rn-table{border-collapse:collapse;width:100%;font-size:15px;background:#fff}
.rn-table caption{text-align:left;font-size:14px;color:var(--ink2);padding:0 0 8px}
.rn-table th,.rn-table td{border:1px solid var(--rule);padding:8px 10px;text-align:left;vertical-align:top}
.rn-table th{background:var(--board);color:#fff;font-weight:600}
.rn-table.rn-num td:not(:first-child){font-family:var(--mono);white-space:nowrap}
.rn-table a{display:inline-flex;align-items:center;min-height:44px}
.rn-note{background:#fff;border:1px solid var(--rule);border-left:5px solid var(--amber);padding:12px 16px;margin:14px 0;max-width:76ch}
.rn-chip{display:inline-flex;gap:8px;align-items:baseline;background:var(--board);color:#fff;border-radius:4px;padding:6px 10px;margin:0 0 14px;font:600 14px var(--mono)}
.rn-chip b{color:var(--amber);font-size:17px}
.rn-faq{max-width:76ch}.rn-faq details{border-bottom:1px solid var(--rule)}
.rn-faq summary{cursor:pointer;font:700 18px/1.4 var(--head);padding:11px 0;min-height:44px}
.rn-faq details>div{padding:0 0 10px}
.rn-path{list-style:none;margin:16px 0;padding:0;max-width:76ch;border-left:3px solid var(--ink)}
.rn-path li{position:relative;padding:0 0 16px 22px}
.rn-path li::before{content:"";position:absolute;left:-9px;top:6px;width:15px;height:15px;border-radius:50%;background:var(--amber);border:2px solid var(--ink)}
.rn-path b{font:700 17px var(--head)}
.rn-calc{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:start;background:#fff;border:2px solid var(--ink);border-radius:8px;padding:22px;margin:16px 0}
.rn-calc fieldset{border:0;padding:0;margin:0 0 10px;min-width:0}
.rn-calc legend{font:700 17px var(--head);margin:0 0 6px}
.rn-calc label{display:block;font-size:14px;margin:8px 0 3px;color:var(--ink2)}
.rn-calc input,.rn-calc select{width:100%;min-height:44px;border:1px solid var(--ink2);border-radius:5px;padding:0 10px;font:16px var(--mono);background:#fff;color:var(--ink)}
.rn-out{background:var(--board);color:#EDEAE3;border-radius:6px;padding:16px 18px;min-height:100%}
.rn-out dl{margin:0;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 14px}
.rn-out dt{font-size:14px;color:#BDB8AE}.rn-out dd{margin:0;font:700 18px var(--mono);color:var(--amber);text-align:right}
.rn-out p{font-size:14px;color:#D9D4CA;margin:12px 0 0}
.rn-foot{background:var(--board);color:#E6E2DA;margin-top:30px}
.rn-foot__in{max-width:var(--max);margin:0 auto;padding:30px 20px;display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px}
.rn-foot a{color:#FFC2D6}.rn-foot__name{font:700 19px var(--head);color:#fff}
.rn-foot__links{list-style:none;margin:0;padding:0}.rn-foot__links a{display:inline-flex;align-items:center;min-height:44px}
.rn-foot__small{grid-column:1 / -1;font-size:13px;color:#C9C4BA;margin:0}
@media (max-width:900px){.rn-split,.rn-calc{grid-template-columns:minmax(0,1fr)}.rn-split--flip .rn-fig{order:0}
.rn-foot__in{grid-template-columns:minmax(0,1fr)}.rn-board__more{margin-left:0}}
@media (max-width:600px){.rn-board__title{display:none}.rn-board ul{gap:2px 14px}.rn-board__lab{font-size:9px}.rn-board__pair b{font-size:14px}
.rn-nav a{padding:0 7px;font-size:14px}.rn-brand span{font-size:15px}.rn-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.rn-card__body>span{display:none}.rn-card b{font-size:15px}}
@media (max-width:480px){body{font-size:16px}.rn-find button{padding:0 16px}.rn-board li:nth-child(n+2) .rn-board__pair:nth-of-type(3){display:none}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media (prefers-color-scheme:dark){:root{--paper:#121317;--paper2:#1E2026;--ink:#ECE9E2;--ink2:#C3BFB6;--rule:#33363E;--link:#FF8FB5}
.rn-top,.rn-card,.rn-fig,.rn-calc,.rn-table,.rn-find,.rn-find input,.rn-calc input,.rn-calc select,.rn-note{background:#1A1C21;color:var(--ink)}
.rn-fig img,.rn-card img{background:#fff}.rn-find button{color:#15171C}.rn-find button:hover{background:#ECE9E2;color:#15171C}
.rn-table th{background:#000}.rn-board{background:#08090B}.rn-foot{background:#08090B}.rn-path li::before{border-color:#ECE9E2}}

/* Reviewed catalogue and guide, 2026-10-18 */
:root{--paper:#f3f5f1;--paper2:#e4ede6;--ink:#15332c;--ink2:#496359;--rule:#c8d7cc;--board:#123a31;--pink:#a7d6ba;--link:#17634b;--amber:#e9be65}
.rn-top{border-top:5px solid var(--board)}.rn-brand img{background:#fff;padding:3px}.rn-hero{padding:42px 0 24px}.rn-hero h1{max-width:28ch}.rn-main>.rn-sec{padding:46px 0}.rn-wall{border-top:0;background:var(--paper2);padding:24px;margin:0 -24px 12px}.rn-cards{gap:12px}.rn-card{border:0;border-radius:0}.rn-card img{object-fit:contain}.rn-card:hover{box-shadow:inset 0 0 0 2px var(--link)}.rn-split{align-items:start}.rn-fig{border-radius:0}.rn-fig a:focus-visible{outline-offset:-4px}.rn-fig img{width:100%;height:auto;object-fit:contain}.rn-ledger-links{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:20px 0}.rn-ledger-links a{padding:14px 0;border-bottom:1px solid var(--rule);font-weight:650}.rn-step{display:grid;grid-template-columns:minmax(0,36fr) minmax(0,64fr);gap:28px;align-items:start;scroll-margin-top:24px}.rn-step .rn-fig{margin-bottom:18px}.rn-step-no{font:700 32px var(--mono);color:var(--link)}.rn-step p{font-size:16px}.rn-nav a[aria-current]{box-shadow:inset 0 -3px var(--link)}.rn-find button{background:var(--board);color:white}.rn-find button:hover{background:#245d48}.rn-foot a{color:#bbdfca}.rn-copy dd{margin:4px 0 20px}.rn-copy dt{margin-top:16px}
@media(max-width:900px){.rn-step{grid-template-columns:1fr}.rn-wall{margin:0;padding:18px}.rn-hero{padding-top:24px}}@media(max-width:600px){.rn-ledger-links{grid-template-columns:1fr}.rn-main>.rn-sec{padding:30px 0}.rn-card__body{padding:10px}.rn-card__body>span{display:block;font-size:13px}.rn-find{max-width:100%}.rn-find input{font-size:16px}}
@media(prefers-color-scheme:dark){:root{--paper:#111d18;--paper2:#1a2b23;--ink:#ecf3e9;--ink2:#c0d0c3;--rule:#385245;--link:#a7d6ba;--board:#122c22}.rn-top,.rn-card,.rn-fig,.rn-calc,.rn-table,.rn-note{background:#19271f}.rn-find button{background:#a7d6ba;color:#122c22}.rn-find button:hover{background:#c6ead5;color:#122c22}}
#step-8{display:block}#step-8>.rn-copy{margin-bottom:24px}#step-8>div:last-child{max-width:1000px}#step-8 .rn-fig figcaption{max-width:none}.rn-menu{display:none}.rn-nav[hidden]{display:none}.rn-find input::placeholder{opacity:1;color:#66776c}@media(max-width:700px){.rn-menu{display:block;min-height:44px;border:1px solid var(--rule);background:var(--paper2);color:var(--ink);padding:0 16px;font:600 15px var(--sans)}.rn-top__in{gap:4px 12px}.rn-brand{flex:1}.rn-brand span{font-size:13px}.rn-brand img{width:85px}.rn-nav{width:100%}.rn-nav ul{display:block}.rn-nav a{display:flex;min-height:44px}.rn-sub{gap:0 12px}.rn-hero{padding-top:20px}.rn-lede{font-size:17px}}@media(prefers-color-scheme:dark){.rn-find input::placeholder{color:#b6c7bb}}