:root{--ru-ground:#E6EBF4;--ru-ink:#22262D;--ru-accent:#D4A24C;--ru-support:#DDD2C5;--ru-surface:#FBFCFD;--ru-display:'Grenze',Georgia,serif;--ru-text:'Basic','Trebuchet MS',sans-serif;--ru-measure:1200px}
*{box-sizing:border-box}
html{scroll-behavior:auto}
body{margin:0;background:var(--ru-ground);color:var(--ru-ink);font:19px/1.55 var(--ru-text);-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure{margin:0}
h1,h2,h3{font-family:var(--ru-display);font-weight:500}
h1{font-size:80px;line-height:.99;letter-spacing:-.025em}
h2{font-size:46px;line-height:1.04;letter-spacing:-.018em}
h3{font-size:29px;line-height:1.13}
p+p{margin-top:20px}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:5px;transition:background-color .16s ease,text-decoration-thickness .16s ease}
a:hover{text-decoration-thickness:3px}
a:focus-visible{outline:3px solid var(--ru-ink);outline-offset:5px;background:var(--ru-accent)}
::selection{background:var(--ru-accent);color:var(--ru-ink)}
.ru-skip{position:fixed;top:8px;left:16px;padding:8px 16px;background:var(--ru-surface);z-index:10;transform:translateY(-160%)}
.ru-skip:focus{transform:translateY(0)}
/* The level topic line meets the wordmark across the open signature. */
.ru-mast{max-width:var(--ru-measure);width:calc(100% - 80px);height:122px;margin:auto;position:relative}
.ru-signature{position:absolute;top:20px;left:0;width:363px;height:67px;border:5px solid var(--ru-ink);border-bottom:0}
.ru-signature:after{content:'';position:absolute;left:-5px;bottom:0;width:27px;height:5px;background:var(--ru-ink)}
.ru-name{position:absolute;left:14px;bottom:26px;padding:0 8px;background:var(--ru-ground);font:600 33px/1 var(--ru-display);text-decoration:none;white-space:nowrap}
.ru-name:hover{background:var(--ru-accent)}
.ru-topics{position:absolute;right:0;bottom:21px;display:flex;align-items:center;gap:24px}
.ru-topics a{display:flex;align-items:center;gap:8px;font-size:17px;line-height:1.2;background:var(--ru-ground);padding:5px 9px;text-decoration:none}
.ru-topics a:hover{background:var(--ru-accent)}
/* Navigation positions follow the shared level flex line. */
.ru-topics a[aria-current=page]{box-shadow:0 3px 0 var(--ru-ink)}
.ru-icon{display:inline-block;position:relative;flex:none;width:20px;height:20px;vertical-align:middle}
i.ru-icon:before{content:'';position:absolute;inset:3px;border:2px solid currentColor;border-right:0}
svg.ru-icon{stroke-width:1.75;fill:none;stroke:currentColor}
.ru-primary-term{white-space:nowrap;display:block}
.ru-home{width:100%}
/* An ochre repainting interrupts the photograph; its edge stays unfinished. */
.ru-opening{position:relative;isolation:isolate;overflow:clip;padding-top:40px;background:var(--ru-support)}
.ru-hero-image{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:67% 49%;transform:scale(1.22);transform-origin:left center;z-index:-1}
.ru-title-panel{position:relative;width:min(940px,76%);margin-left:max(40px,calc((100% - var(--ru-measure))/2));padding:28px 40px 38px;border-left:9px solid var(--ru-ink);background:var(--ru-accent);clip-path:polygon(0 0,100% 0,100% calc(100% - 36px),calc(100% - 52px) calc(100% - 36px),calc(100% - 52px) 100%,0 100%)}
.ru-title-panel h1{max-width:860px;font-size:76px;line-height:.95}
.ru-lead{font-size:22px;line-height:1.42;max-width:680px;margin-top:22px}
.ru-title-panel .ru-lead{font-size:20px;line-height:1.4;max-width:640px;margin-top:18px}
.ru-opening-material{position:relative;margin-top:52px;background:var(--ru-ground)}
.ru-opening-measures{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:70px;align-items:center;max-width:var(--ru-measure);width:calc(100% - 80px);margin:auto;padding:24px 0 30px}
/* Side matter shares the ground: no enclosure, linked affordance or hover treatment. */
.ru-promise{grid-column:2;grid-row:1;padding-left:62px;text-align:left;color:var(--ru-ink);cursor:default;font-size:17px;line-height:1.4}
.ru-promise p{margin:0}
.ru-promise-first,.ru-promise-route{display:block;margin-left:0}
.ru-promise-first{max-width:95%;margin-bottom:12px;font-size:20px;line-height:1.25}
.ru-promise-route{max-width:100%}
.ru-exposures{grid-column:1;grid-row:1;height:176px;display:grid;grid-template-columns:1fr 1.3fr .6fr 1.1fr .7fr;gap:16px;align-items:end;position:relative;margin:-62px 0 0}
.ru-exposure{display:block;background:var(--ru-support);position:relative;isolation:isolate}
.ru-exposure img{display:block;width:100%;height:100%;object-fit:cover}
.ru-exposure:nth-child(1){height:176px}.ru-exposure:nth-child(2){height:128px}.ru-exposure:nth-child(3){height:158px}.ru-exposure:nth-child(4){height:98px}.ru-exposure:nth-child(5){height:145px}
.ru-exposure:nth-child(1) img{object-position:0% 50%}.ru-exposure:nth-child(2) img{object-position:28% 50%}.ru-exposure:nth-child(3) img{object-position:51% 50%}.ru-exposure:nth-child(4) img{object-position:74% 50%}.ru-exposure:nth-child(5) img{object-position:100% 50%}
.ru-exposure:nth-child(4):after{content:'';position:absolute;inset:100% -12px auto 12px;height:15px;background:var(--ru-ink);z-index:-1}
/* Three later passages turn right, down, then back left around an empty square. */
.ru-clock,.ru-article-clock{display:grid;grid-template-columns:minmax(0,1fr) 160px minmax(0,1fr);gap:62px 36px;align-items:start}
.ru-clock{max-width:var(--ru-measure);width:calc(100% - 80px);margin:94px auto 0}
.ru-pass{min-width:0;position:relative;padding:38px 36px 34px}
.ru-pass h2{max-width:16ch;margin-bottom:25px;position:relative}
.ru-pass p{max-width:59ch}
.ru-turn-tag{font:600 120px/.72 var(--ru-display);display:block;position:relative;margin:-13px 0 30px -8px;letter-spacing:-.055em}
.ru-turn-icon{position:absolute;right:-16px;top:30px;width:48px;height:48px;display:grid;place-items:center;background:var(--ru-accent);box-shadow:6px 6px 0 var(--ru-ink)}
.ru-turn-icon .ru-icon{width:24px;height:24px}
.ru-home .ru-pass-two{grid-area:1/3/2/4;border-right:12px solid var(--ru-accent);background:var(--ru-surface);box-shadow:16px 16px 0 var(--ru-support)}
.ru-home .ru-pass-three{grid-area:2/1/3/4;border-bottom:14px solid var(--ru-accent);background:var(--ru-support);padding:42px 48px 38px}
.ru-home .ru-pass-three h2{max-width:none}
.ru-home .ru-pass-three .ru-paragraphs{columns:2;column-gap:76px}
.ru-home .ru-pass-three p{break-inside:avoid}
.ru-home .ru-pass-four{grid-area:1/1/2/2;border-left:12px solid var(--ru-accent);padding-left:26px;padding-right:12px;padding-top:96px}
.ru-home .ru-pass-four .ru-turn-icon{right:8px;top:80px}
.ru-void{grid-area:1/2/2/3;align-self:center;aspect-ratio:1;pointer-events:none}
.ru-terminal{display:block;width:42px;height:42px;border:8px solid var(--ru-ink);border-right:0;margin-top:30px}
.ru-pass-four .ru-terminal{width:88px;border-left:0;border-right:8px solid var(--ru-ink);margin-left:-64px}
.ru-next-reading{display:inline-flex;align-items:center;gap:14px;margin-top:25px;font-size:17px;line-height:1.3;text-decoration:none;border-bottom:2px solid var(--ru-ink);padding:9px 0;max-width:100%}
.ru-next-reading:hover,.ru-next-reading:focus-visible{background:var(--ru-accent)}
.ru-next-reading .ru-icon{transition:transform .16s ease}
.ru-next-reading:hover .ru-icon,.ru-next-reading:focus-visible .ru-icon{transform:translate(3px,3px)}
.ru-article{max-width:var(--ru-measure);width:calc(100% - 80px);margin:0 auto}
.ru-article-head{padding:28px 0 42px;border-left:9px solid var(--ru-accent);padding-left:32px}
.ru-breadcrumb{font-size:16px;margin-bottom:26px;display:flex;align-items:center;gap:16px}
.ru-breadcrumb span{border-left:2px solid var(--ru-ink);padding-left:16px}
.ru-article-head h1{max-width:1030px;font-size:74px;line-height:1}
.ru-article-head .ru-lead{max-width:760px}
.ru-photo-band{position:relative;height:278px;margin:12px -36px 72px 0;background:var(--ru-support);border-bottom:16px solid var(--ru-accent)}
.ru-photo-band:after{content:'';position:absolute;left:30px;bottom:-34px;width:84px;height:50px;border:9px solid var(--ru-ink);border-right:0}
.ru-photo-band img{display:block;width:100%;height:100%;object-fit:cover}
.ru-article-clock{margin-top:56px;gap:64px 36px}
.ru-article .ru-pass-one{grid-area:1/1/2/4;border-top:14px solid var(--ru-accent);padding:36px 44px;background:var(--ru-surface);clip-path:polygon(0 0,100% 0,100% calc(100% - 34px),calc(100% - 56px) calc(100% - 34px),calc(100% - 56px) 100%,0 100%)}
.ru-article .ru-pass-one .ru-turn-icon{right:34px}
.ru-article .ru-pass-one .ru-paragraphs{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.ru-article .ru-pass-one .ru-paragraphs p{margin:0}
.ru-article .ru-pass-two{grid-area:2/3/3/4;border-right:12px solid var(--ru-accent);background:var(--ru-support);box-shadow:16px 16px 0 var(--ru-surface)}
.ru-article .ru-pass-three{grid-area:3/1/4/4;border-bottom:14px solid var(--ru-accent);background:var(--ru-surface);padding:40px 44px}
.ru-article .ru-pass-three .ru-paragraphs{columns:2;column-gap:76px}
.ru-article .ru-pass-three p{break-inside:avoid}
.ru-article .ru-pass-four{grid-area:2/1/3/2;border-left:12px solid var(--ru-accent);padding:92px 12px 34px 26px}
.ru-article .ru-pass-four .ru-turn-icon{right:8px;top:76px}
.ru-article .ru-void{grid-area:2/2/3/3}
.ru-source{margin-top:28px;break-inside:avoid}
.ru-source a{font-size:19px;line-height:1.3;display:inline-block;margin-bottom:10px}
.ru-source p{font-size:17px;line-height:1.55}
.ru-reference-clock .ru-pass-one .ru-paragraphs{display:block}
.ru-reference-clock .ru-pass-one .ru-source,.ru-reference-clock .ru-pass-three .ru-source{display:grid;grid-template-columns:300px 1fr;gap:36px}
.ru-reference-clock .ru-pass-three .ru-paragraphs{columns:auto}
.ru-related{margin:74px 0 0;padding:28px 0;border-top:5px solid var(--ru-ink);display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;font-size:18px}
.ru-related p{font-family:var(--ru-display);font-size:30px}
.ru-related a{align-self:center}
.ru-colophon{max-width:var(--ru-measure);width:calc(100% - 80px);margin:100px auto 0;padding:30px 0 38px;border-top:8px solid var(--ru-ink);display:grid;grid-template-columns:1fr 1fr;gap:28px 80px;font-size:16px;line-height:1.5}
.ru-colophon p{max-width:480px}
.ru-colophon nav{display:flex;flex-wrap:wrap;align-content:start;gap:12px 28px;justify-content:flex-end}
.ru-copyright{grid-column:1/3;font-size:16px}
.ru-lost{min-height:55vh;padding:45px 0}
.ru-lost h1{font-size:70px}
.ru-lost p{margin-top:28px;max-width:600px}
@media(min-width:1500px){.ru-title-panel{width:1000px}.ru-title-panel h1{font-size:86px}}
@media(max-width:1100px) and (min-width:701px){
.ru-title-panel{width:76%;padding:28px 30px 38px}.ru-title-panel h1{font-size:68px}.ru-title-panel .ru-lead{font-size:19px}
.ru-opening-measures{gap:34px}.ru-promise{padding-left:20px;font-size:16px}.ru-promise-first{font-size:18px}.ru-exposures{gap:12px}
.ru-clock,.ru-article-clock{grid-template-columns:minmax(0,1fr) 80px minmax(0,1fr);gap:44px 26px}.ru-pass{padding:30px 26px}h2{font-size:40px}.ru-turn-tag{font-size:96px}
.ru-article-head h1{font-size:63px}.ru-reference-clock .ru-pass-one .ru-source,.ru-reference-clock .ru-pass-three .ru-source{grid-template-columns:230px 1fr}
}
@media(max-width:700px){
body{font-size:18px;line-height:1.5}
.ru-mast{width:calc(100% - 32px);height:74px}
.ru-signature{top:8px;left:0;width:50px;height:50px;border-width:4px;border-bottom:0}
.ru-signature:after{left:-4px;width:16px;height:4px}
.ru-name{left:8px;bottom:12px;padding:0 5px;font-size:23px;line-height:1;max-width:220px}
.ru-topics a{padding:1px 0 1px 3px;font-size:16px;line-height:19px;min-width:94px;gap:5px}
.ru-topics .ru-icon{width:17px;height:17px}
.ru-topics{top:3px;bottom:auto;flex-direction:column;align-items:flex-start;gap:2px}
.ru-opening{padding-top:0;background:var(--ru-ground)}
.ru-title-panel{width:100%;margin:0;padding:22px 16px 30px;border-left:0;border-top:7px solid var(--ru-ink);clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 32px) calc(100% - 18px),calc(100% - 32px) 100%,0 100%)}
.ru-title-panel h1{font-size:38px;line-height:1.02;letter-spacing:-.022em;max-width:100%}
h2{font-size:37px;line-height:1.04}
h3{font-size:26px}
.ru-lead{font-size:19px;line-height:1.4;margin-top:18px}
.ru-title-panel .ru-lead{font-size:18px;line-height:1.4;margin-top:16px;max-width:100%}
.ru-opening-material{margin-top:0}
.ru-opening-measures{width:calc(100% - 32px);padding:17px 0 0;display:flex;flex-direction:column;gap:25px;align-items:stretch}
.ru-promise{order:-1;padding-left:32px;font-size:16px;line-height:1.38}
.ru-promise-first{font-size:18px;line-height:1.25;max-width:100%;margin-bottom:12px}
.ru-hero-image{display:none}
.ru-exposures{height:132px;grid-template-columns:1fr 1.25fr .75fr;gap:18px;margin:0}
.ru-exposure:nth-child(1){height:132px}.ru-exposure:nth-child(2){height:100px}.ru-exposure:nth-child(3){height:119px}
.ru-exposure:nth-child(2) img{object-position:43% 40%}.ru-exposure:nth-child(3) img{object-position:100% 40%}
.ru-exposure:nth-child(n+4){display:none}.ru-exposure:nth-child(4):after{display:none}
.ru-clock,.ru-article-clock{width:calc(100% - 32px);display:flex;flex-direction:column;gap:45px;margin:52px auto 0}
.ru-pass{width:100%;padding:30px 22px 28px}
.ru-pass h2{margin-bottom:23px;max-width:100%}
.ru-turn-tag{font-size:86px;margin:-6px 0 26px -3px}
.ru-turn-icon{right:8px;top:24px;width:40px;height:40px;box-shadow:4px 4px 0 var(--ru-ink)}
.ru-home .ru-pass-two,.ru-article .ru-pass-two{border-right-width:9px;box-shadow:none}
.ru-home .ru-pass-three,.ru-article .ru-pass-three{padding:30px 22px;border-bottom-width:9px}
.ru-home .ru-pass-four,.ru-article .ru-pass-four{padding:30px 16px 28px 19px;border-left-width:9px}
.ru-home .ru-pass-four .ru-turn-icon,.ru-article .ru-pass-four .ru-turn-icon{top:24px;right:8px}
.ru-home .ru-pass-three .ru-paragraphs,.ru-article .ru-pass-three .ru-paragraphs{columns:auto}
.ru-pass-four .ru-terminal{margin-left:0;width:70px}
.ru-void{display:none}
.ru-next-reading{font-size:17px}
.ru-next-reading .ru-icon{transition:none}
.ru-next-reading:hover .ru-icon,.ru-next-reading:focus-visible .ru-icon{transform:none}
.ru-article{width:calc(100% - 32px)}
.ru-article-head{padding:21px 0 30px 16px;border-left-width:6px}
.ru-breadcrumb{font-size:16px;margin-bottom:22px;gap:12px}
.ru-breadcrumb span{padding-left:12px}
.ru-article-head h1{font-size:43px;line-height:1.04;letter-spacing:-.02em}
.ru-article-head .ru-lead{font-size:19px}
.ru-photo-band{height:176px;margin:0 0 40px;border-bottom-width:10px}
.ru-photo-band:after{left:18px;bottom:-24px;width:60px;height:35px;border-width:6px;border-right:0}
.ru-article-clock{width:100%;margin-top:40px}
.ru-article .ru-pass-one{padding:30px 22px 38px;border-top-width:9px}
.ru-article .ru-pass-one .ru-turn-icon{right:12px}
.ru-article .ru-pass-one .ru-paragraphs{display:block}
.ru-article .ru-pass-one .ru-paragraphs p+p{margin-top:20px}
.ru-source{margin-top:26px}.ru-source p{font-size:17px}
.ru-reference-clock .ru-pass-one .ru-source,.ru-reference-clock .ru-pass-three .ru-source{display:block}
.ru-related{margin-top:48px;padding-top:24px;gap:20px}
.ru-related p{width:100%;font-size:28px}
.ru-colophon{width:calc(100% - 32px);margin-top:62px;padding-top:26px;display:block;font-size:16px}
.ru-colophon nav{margin-top:25px;justify-content:flex-start;gap:12px 24px}
.ru-copyright{margin-top:28px}
.ru-lost h1{font-size:45px}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}