/* Journal supplies the header, fonts and theme. The castle gets its own plates. */
.doom-page{--essay:#c4cbc2;--signal:#abc5a2;--panel:#101610}
html[data-theme="light"] .doom-page{--essay:#424a3e;--signal:#3c6737;--panel:#eaece3}
.doom-page .site-nav a[aria-current="location"]{color:var(--ink)}
.doom-page .site-nav a[aria-current="location"]:after{content:"";position:absolute;inset:auto 0 0;height:1px;background:var(--accent)}
.skip-link{position:absolute;left:22px;top:-80px;padding:12px;background:var(--bg);z-index:90}
.skip-link:focus{top:12px}
.doom-hero{padding-top:29px}
.hero-brow{display:flex;justify-content:space-between;gap:20px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero-brow span:first-child{color:var(--signal)}
.hero-head{display:grid;grid-template-columns:1fr 270px;gap:40px;align-items:end;margin:39px 0 39px}
.hero-head h1{font-size:clamp(66px,7.4vw,100px);line-height:1.04;letter-spacing:-.065em}
.hero-head h1>span{display:block;font-size:.59em;letter-spacing:-.05em;margin-bottom:6px}
.hero-dek{font:25px/1.3 var(--serif);letter-spacing:-.03em;color:var(--essay);margin:0 0 22px}
.hero-meta{font-size:10px;line-height:1.9;color:var(--muted)}
.castle-plate img{height:auto;background:#000}
.castle-plate figcaption{display:flex;justify-content:space-between;gap:20px;padding:13px 0;font-size:10px;color:var(--muted)}
.essay-nav{display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:22px 0;margin:19px 0 63px;font-size:12px}
.essay-nav>.eyebrow{margin-right:auto}
.doom-essay>p,.doom-essay>.doom-quote,.doom-essay>.field-note{max-width:680px;margin-left:auto;margin-right:auto}
.doom-essay>p{font:18px/1.84 var(--sans);color:var(--essay);margin-bottom:25px}
.doom-essay>p a{border-bottom:1px solid var(--line)}
.doom-essay>.lead{font:28px/1.48 var(--serif);letter-spacing:-.02em;color:var(--ink);margin-bottom:30px}
.doom-essay>.label{font:10px var(--sans);letter-spacing:.1em;text-transform:uppercase;color:var(--signal);margin-bottom:24px}
.chapter-heading{max-width:680px;margin:97px auto 30px;position:relative;scroll-margin-top:36px}
.chapter-heading>.eyebrow{display:block;color:var(--signal);margin-bottom:18px}
.chapter-heading h2{font-size:46px;line-height:1.12}
.doom-quote{border-left:1px solid var(--signal);padding:5px 0 5px 28px;margin-top:37px;margin-bottom:38px}
.doom-quote p{font:30px/1.35 var(--serif);color:var(--ink);letter-spacing:-.035em}
.doom-quote cite{display:block;margin-top:17px;font:10px/1.6 var(--sans);color:var(--muted)}
.doom-quote cite a,.image-credit{border-bottom:1px solid var(--line)}
.doom-essay>.field-note{padding:23px 26px;margin-top:32px;margin-bottom:32px;background:var(--panel);border-left:1px solid var(--signal);font-size:14px;line-height:1.85;color:var(--essay)}
.field-note .note-label{display:block;margin-bottom:12px;color:var(--signal);font-size:10px;text-transform:uppercase;letter-spacing:.07em}
.diagram{margin:49px 0 57px;padding:23px 0 26px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.figure-label{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:23px;color:var(--signal);font:10px/1.5 var(--sans);letter-spacing:.07em;text-transform:uppercase}
.diagram h3{font-size:34px;line-height:1.14;letter-spacing:-.035em;margin-bottom:37px}
.diagram figcaption{font-size:12px;line-height:1.7;color:var(--muted);max-width:790px;margin-top:24px}
.flow{list-style:none;padding:0;margin:0;display:grid;gap:0}
.flow.three{grid-template-columns:repeat(3,minmax(0,1fr))}
.flow li{position:relative;min-width:0;border-top:1px solid var(--line);padding:23px 26px 0 0}
.flow li:before{content:"";position:absolute;left:0;top:-3px;width:5px;height:5px;border-radius:50%;background:var(--muted)}
.step-no{display:block;font:9px/1 var(--sans);color:var(--muted);margin-bottom:15px}
.flow strong{display:block;font:23px/1.25 var(--serif);letter-spacing:-.03em;color:var(--ink);margin-bottom:10px}
.flow small{display:block;font-size:12px;line-height:1.6;color:var(--muted);max-width:230px}
.discard{display:flex;gap:14px;margin:28px 0 0 33.333%;padding:17px 0 0;border-top:1px dashed var(--line)}
.discard>span{color:var(--signal);font-size:23px;line-height:1}
.discard p{font-size:12px;line-height:1.7}
.discard strong{font-weight:400;color:var(--ink)}
.image-aside{display:grid;grid-template-columns:1.2fr .8fr;gap:65px;align-items:center;margin:65px 0 80px}
.image-aside img{height:auto}
.image-aside figcaption{max-width:325px}
.image-aside h3{font-size:40px;line-height:1.12;margin:19px 0}
.image-aside p{font-size:14px;line-height:1.8}
.image-credit{display:inline-block;color:var(--muted);font-size:9px;line-height:1.8;margin-top:16px}
.figure-label button{background:transparent;border:1px solid var(--line);color:var(--ink);font:11px var(--sans);text-transform:none;letter-spacing:0;padding:10px 13px;min-height:36px;white-space:nowrap}
.figure-label button span{margin-left:12px;color:var(--signal)}
.figure-label button:disabled{color:var(--muted);cursor:default}
.loop-route{grid-template-columns:repeat(6,minmax(0,1fr))}
.loop-route li{padding-right:22px;transition:border-color .25s}
.loop-route strong{font-size:24px}
.loop-route li.active{border-color:var(--signal)}
.loop-route li.active:before{background:var(--signal);box-shadow:0 0 0 6px color-mix(in srgb,var(--signal) 12%,transparent)}
.feedback-line{position:relative;border:1px solid var(--line);border-top:0;text-align:center;padding:16px 0;margin:25px 8% 0 0;color:var(--muted);font-size:10px}
.feedback-line:before{content:"↑";position:absolute;left:-5px;top:-10px;background:var(--bg);color:var(--signal)}
.loop-receipt{display:grid;grid-template-columns:185px 1fr;gap:24px;margin-top:23px;padding-bottom:20px}
.loop-receipt p{font:12px/1.8 ui-monospace,SFMono-Regular,Consolas,monospace;min-height:44px;color:var(--essay)}
.foundation{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:15px;font-size:11px;color:var(--muted)}
.foundation span:first-child{color:var(--signal)}
.agent-flow{display:grid;grid-template-columns:1fr 60px 1fr;gap:30px;align-items:center}
.agent-flow .eyebrow{display:block;color:var(--muted);margin-bottom:24px}
.agent-flow strong{font:25px/1.2 var(--serif);letter-spacing:-.035em}
.agent-flow p{font-size:13px;line-height:1.7;margin-top:13px}
.sandbox{border:1px dashed var(--line);padding:29px}
.verifier{padding:24px 0}
.connector{color:var(--signal);font-size:27px;text-align:center}
.gate-outcomes{margin:26px 0 0 calc(50% + 60px);display:grid;gap:13px}
.gate-outcomes p{font-size:12px;line-height:1.7}
.gate-outcomes span{display:inline-block;color:var(--signal);font:9px var(--sans);letter-spacing:.07em;margin-right:16px}
.robot-spread{display:grid;grid-template-columns:.67fr 1.33fr;gap:70px;margin:59px 0 65px;align-items:start}
.robot-fiction img{aspect-ratio:2/3;height:auto}
.robot-reality{padding-top:85px}
.robot-spread img{height:auto}
.robot-spread figcaption{padding-top:20px}
.robot-spread h3{font-size:32px;margin:13px 0}
.robot-spread p{font-size:14px;line-height:1.8;max-width:490px}
.lab-photo{margin:48px 0 46px}
.lab-photo>img{height:auto;aspect-ratio:1.85;object-position:center 55%}
.lab-photo figcaption{display:grid;grid-template-columns:1fr 1.6fr 1fr;gap:25px;padding-top:17px}
.lab-photo p{font-size:12px;line-height:1.7}
.lab-photo .image-credit{margin-top:0;justify-self:end;align-self:start}
.experiment-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px;align-items:start}
.experiment-route>div{display:flex;gap:21px;position:relative;padding-bottom:26px}
.experiment-route>div>span{color:var(--signal);font:10px/1.8 var(--sans);width:18px;flex-shrink:0}
.experiment-route>div:not(:last-child):before{content:"";position:absolute;top:23px;bottom:6px;left:6px;border-left:1px solid var(--line)}
.experiment-route strong{display:block;font-size:17px;color:var(--ink);font-weight:400}
.experiment-route small{display:block;font-size:12px;line-height:1.7;margin-top:8px}
.record{min-width:0;background:var(--panel);padding:24px 27px}
.record pre{margin:24px 0 0;white-space:pre-wrap;overflow-wrap:anywhere;font:12px/1.9 ui-monospace,SFMono-Regular,Consolas,monospace;color:var(--essay);tab-size:2}
.record code span{color:var(--signal)}
.armor-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:65px;align-items:center}
.armor-grid>img{height:auto;aspect-ratio:1.07;object-position:47% 40%}
.armor-grid h3{font-size:47px;margin-bottom:28px}
.placement-route{list-style:none;margin:0;padding:0}
.placement-route li{position:relative;padding:0 0 23px 27px;border-left:1px solid var(--line)}
.placement-route li:last-child{padding-bottom:0;border-color:transparent}
.placement-route li:before{content:"";position:absolute;top:5px;left:-3px;width:5px;height:5px;background:var(--signal);border-radius:50%}
.placement-route li>span{font-size:9px;letter-spacing:.06em;text-transform:uppercase;color:var(--signal);display:block;margin-bottom:8px}
.placement-route strong{display:block;font-size:18px;font-weight:400}
.placement-route small{display:block;font-size:12px;line-height:1.6;color:var(--muted);margin-top:7px}
.armor-diagram figcaption .image-credit{margin:0 0 0 6px}
.newton-photo{grid-template-columns:.8fr 1.2fr;gap:80px;max-width:900px;margin:38px auto 50px}
.newton-photo>img{max-width:320px;justify-self:center}
.newton-photo figcaption{max-width:350px}
.dependency-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}
.dependency-grid>div>.eyebrow{display:block;margin-bottom:24px}
.dependency-level{position:relative;margin-left:12px;padding:0 0 30px 28px;border-left:1px solid var(--line)}
.dependency-level:before{content:"";position:absolute;left:-4px;top:4px;width:7px;height:7px;background:var(--muted);border-radius:50%}
.dependency-level strong{display:block;font:27px/1.2 var(--serif)}
.dependency-level small{display:block;margin-top:7px;color:var(--muted);font-size:12px}
.dependency-level.source-level{padding-bottom:0;border-color:transparent}
.source-level:before{background:var(--signal)}
.source-level strong{color:var(--signal)}
.dependency-notes{padding-left:30px;border-left:1px dashed var(--line)}
.dependency-notes>p{font:30px/1.2 var(--serif);color:var(--ink);letter-spacing:-.025em;max-width:310px}
.dependency-notes ul{margin:25px 0 0;padding-left:18px;color:var(--muted);font-size:13px;line-height:1.8}
.dependency-notes li{padding-bottom:8px}
#battleworld{border-top:1px solid var(--signal);padding-top:29px}
.doom-essay>.last-line{font:55px/1.15 var(--serif);letter-spacing:-.045em;color:var(--signal);border-top:1px solid var(--line);padding-top:28px;margin-top:45px;margin-bottom:74px}
.build-sequence{max-width:680px;margin:30px auto 35px;padding-left:23px;color:var(--essay);font-size:17px;line-height:1.84}
.build-sequence li{padding-left:9px;margin-bottom:24px}
.build-sequence li::marker{color:var(--signal);font-size:12px}
.build-sequence strong{color:var(--ink)}
.source-index{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 0;font-size:13px;line-height:1.8;color:var(--muted)}
.source-index summary{color:var(--ink);cursor:pointer;font-size:13px}
.source-index summary>span{font-size:10px;color:var(--muted);float:right}
.source-index ul{max-width:800px;padding-left:20px;margin-top:26px}
.source-index li{margin-bottom:15px;padding-left:6px;overflow-wrap:anywhere}
.source-index a{color:var(--ink);border-bottom:1px solid var(--line)}
.source-index h3{font-size:27px;margin-top:34px}
.source-index .art-list span{display:block;font-size:12px}
.source-index>p{max-width:760px;font-size:12px}
.nearby{display:grid;grid-template-columns:1fr 1.3fr 1.3fr;gap:30px;padding:35px 0 25px;align-items:baseline}
.nearby>a{font:24px/1.3 var(--serif);letter-spacing:-.035em}
.nearby>a>span{font:17px var(--sans);color:var(--signal);margin-left:13px}
.motion.in-view{animation:plate-enter .65s ease-out both}
@keyframes plate-enter{from{transform:translateY(8px)}to{transform:translateY(0)}}
@media(max-width:1000px){
 .hero-head{grid-template-columns:1fr 220px;gap:27px}
 .hero-head h1{font-size:72px}.hero-dek{font-size:23px}
 .image-aside,.robot-spread,.armor-grid{gap:38px}
 .loop-route{grid-template-columns:repeat(3,minmax(0,1fr));gap:28px 0}
 .experiment-grid{gap:40px}.newton-photo{gap:45px}
 .lab-photo figcaption{grid-template-columns:1fr 2fr}.lab-photo .image-credit{grid-column:2;justify-self:start}
 .agent-flow{grid-template-columns:1fr 30px 1fr;gap:18px}.gate-outcomes{margin-left:calc(50% + 33px)}
 .dependency-grid{gap:40px}.nearby{grid-template-columns:1fr 1fr}.nearby>.eyebrow{grid-column:1/-1}
}
@media(max-width:600px){
 .doom-hero{padding-top:24px}.hero-brow{font-size:8px;gap:15px}
 .hero-head{grid-template-columns:1fr;gap:22px;margin:28px 0}
 .hero-head h1{font-size:clamp(49px,12.7vw,72px);line-height:1.07}.hero-head h1>span{font-size:.66em}
 .hero-head>div{display:flex;justify-content:space-between;gap:20px;align-items:end}
 .hero-dek{font-size:20px;margin:0}.hero-meta{font-size:9px}
 .castle-plate{margin:0 -22px}.castle-plate figcaption{padding:12px 22px;font-size:8px;line-height:1.7}
 .castle-plate figcaption>span{max-width:50%}
 .essay-nav{margin-top:15px;margin-bottom:44px;padding:19px 0;gap:14px 23px;font-size:11px}
 .essay-nav>.eyebrow{width:100%;font-size:8px}
 .doom-essay>p{font-size:17px;line-height:1.83;margin-bottom:23px}
 .doom-essay>.lead{font-size:25px;line-height:1.46}
 .chapter-heading{margin-top:65px;margin-bottom:24px}
 .chapter-heading h2{font-size:36px}
 .chapter-heading>.eyebrow{font-size:9px;margin-bottom:15px}
 .doom-quote{padding-left:20px;margin-top:29px;margin-bottom:31px}
 .doom-quote p{font-size:27px}
 .diagram{margin:37px 0 43px;padding:20px 0 23px}
 .figure-label{font-size:8px;gap:15px;align-items:flex-start;flex-direction:column;margin-bottom:21px}
 .diagram h3{font-size:29px;margin-bottom:28px}
 .diagram figcaption{font-size:11px;line-height:1.75;margin-top:20px}
 .flow.three,.loop-route{grid-template-columns:1fr;gap:0}
 .flow li{border-top:0;border-left:1px solid var(--line);padding:0 0 24px 25px;margin-left:3px}
 .flow li:last-child{border-color:transparent;padding-bottom:0}
 .flow li:before{left:-3px;top:4px}
 .step-no{margin-bottom:8px}
 .flow strong{font-size:24px;margin-bottom:7px}
 .flow small{max-width:none;font-size:12px}
 .discard{margin:24px 0 0;padding-top:17px}
 .image-aside{grid-template-columns:1fr;gap:25px;margin:43px 0 55px}
 .image-aside h3{font-size:33px;margin:14px 0}
 .image-aside figcaption{max-width:none}
 .image-aside p{font-size:13px}
 .image-credit{font-size:9px}
 .feedback-line{margin:21px 0 0;padding:15px 10px}
 .loop-receipt{grid-template-columns:1fr;gap:13px;margin-top:21px;padding-bottom:15px}
 .loop-receipt>.eyebrow{font-size:8px}
 .loop-receipt p{min-height:65px}
 .foundation{flex-direction:column;gap:6px;font-size:10px}
 .agent-flow{grid-template-columns:1fr;gap:12px}
 .sandbox{padding:22px}
 .agent-flow .eyebrow{font-size:9px;margin-bottom:18px}
 .connector{transform:rotate(90deg);line-height:1}
 .verifier{padding:17px 0}
 .gate-outcomes{margin:15px 0 0;padding-top:17px;border-top:1px solid var(--line)}
 .robot-spread{grid-template-columns:.7fr 1.3fr;gap:19px;margin:45px 0}
 .robot-reality{padding-top:50px}
 .robot-spread h3{font-size:25px;margin:10px 0}
 .robot-spread p{font-size:12px;line-height:1.75}
 .robot-spread .eyebrow{font-size:8px}
 .robot-spread .image-credit{font-size:8px;margin-top:10px}
 .lab-photo{margin:36px 0}
 .lab-photo>img{aspect-ratio:auto}
 .lab-photo figcaption{grid-template-columns:1fr;gap:13px}
 .lab-photo .image-credit{grid-column:1}
 .experiment-grid{grid-template-columns:1fr;gap:18px}
 .record{padding:22px 19px}
 .record pre{font-size:11px;line-height:1.95}
 .armor-grid{grid-template-columns:1fr;gap:28px}
 .armor-grid>img{aspect-ratio:1.3}
 .armor-grid h3{font-size:36px}
 .placement-route li{padding-bottom:25px}
 .newton-photo{grid-template-columns:.67fr 1fr;gap:23px;align-items:start}
 .newton-photo h3{font-size:28px;margin-top:12px}
 .newton-photo p{font-size:12px}
 .newton-photo .eyebrow{font-size:8px}
 .dependency-grid{grid-template-columns:1fr;gap:34px}
 .dependency-grid>div>.eyebrow{font-size:8px}
 .dependency-notes{border-left:0;border-top:1px dashed var(--line);padding:23px 0 0}
 .dependency-notes>p{font-size:28px}
 .doom-essay>.field-note{padding:20px}
 .doom-essay>.last-line{font-size:39px;margin-bottom:50px}
 .source-index summary>span{display:block;float:none;font-size:9px;margin-top:7px}
 .nearby{grid-template-columns:1fr;gap:22px;padding:28px 0}
 .nearby>a{font-size:25px}
}
@media(prefers-reduced-motion:reduce){.motion.in-view{animation:none}.loop-route li{transition:none}}