:root{--bg:#080a08;--panel:#0f130f;--ink:#ecefe7;--muted:#a0aa9b;--edge:#3a4235;--acid:#d6ff00;--acid-ink:#d6ff00;--bad:#ff8a5c;--mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;--head:"Arial Black",Arial,sans-serif;color-scheme:dark}
:root[data-theme=light]{--bg:#fbfaf6;--panel:#ffffff;--ink:#15170f;--muted:#4f5747;--edge:#828a78;--acid-ink:#4b5e00;--bad:#a8380c;color-scheme:light}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.6 var(--mono)}
a{color:var(--acid-ink)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--acid-ink);outline-offset:2px}
.skip-link{position:absolute;left:-999px}.skip-link:focus{left:8px;top:8px;background:var(--acid);color:#050705;padding:10px;z-index:9}
.site-header{position:sticky;top:0;z-index:5;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 16px;background:var(--bg);border-bottom:1px solid var(--edge)}
.wordmark{display:flex;align-items:center;gap:8px;min-height:44px;background:none;border:0;color:var(--ink);font:900 20px/1 var(--head);cursor:pointer;padding:0}
.wordmark svg{width:26px;height:26px;fill:none;stroke:var(--acid-ink);stroke-width:2}.header-sub{font:400 11px var(--mono);color:var(--muted);margin-left:4px}
nav{display:flex;align-items:center;gap:10px}.header-day{font-weight:700;color:var(--muted)}.header-feedback{display:inline-flex;align-items:center;min-height:44px}.header-coffee{display:inline-flex;align-items:center;min-height:44px}.fb-short{display:none}
main{max-width:860px;margin:0 auto;padding:28px 16px 60px}
h1,h2,h3,h4{font-family:var(--head);font-weight:900;letter-spacing:0;margin:0 0 10px}h1{font-size:clamp(40px,8vw,72px);line-height:1;text-transform:uppercase}h2{font-size:clamp(24px,4vw,34px)}h3{font-size:22px}h4{font-size:16px;margin-top:18px}
.eyebrow{margin:0 0 8px;color:var(--acid-ink);font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.lead{font-size:17px;max-width:62ch}.note,.signed,.links span{color:var(--muted)}.signed{border-left:3px solid var(--acid);padding-left:12px;margin:22px 0}
.links{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center}.links a{display:inline-flex;align-items:center;min-height:44px}
.buttons{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}
button{min-height:44px;min-width:44px;padding:0 18px;border:1px solid var(--edge);border-radius:0;background:transparent;color:var(--ink);font:700 14px var(--mono);cursor:pointer}
button.primary{background:var(--acid);border-color:var(--acid);color:#050705;font-weight:900}button.secondary:hover{border-color:var(--acid-ink);color:var(--acid-ink)}
.stats{display:flex;gap:10px;flex-wrap:wrap}.stats div{border:1px solid var(--edge);padding:8px 14px;min-width:80px;text-align:center}.stats b{display:block;font:900 22px var(--head)}.stats span{font-size:12px;color:var(--muted)}
.board{margin:12px 0;border:1px solid var(--edge);background:var(--panel);padding:10px}.board figcaption{color:var(--muted);font-size:13px;padding:6px 4px 0}
.mech{width:100%;height:auto;display:block}.mech text{fill:var(--ink);font:700 13px var(--mono)}.mech text.small{font-size:11px;fill:var(--muted)}.mech text.ask{fill:var(--acid-ink);font:900 26px var(--head)}
.mech .part{fill:none;stroke:var(--ink);stroke-width:2}.mech .beam{stroke-width:5}.mech .teeth{fill:none;stroke:var(--muted);stroke-width:2}.mech .hub{fill:var(--ink)}.mech .shaft{stroke:var(--muted);stroke-width:2;stroke-dasharray:4 4}
.mech .behind{opacity:.45}.mech .rope{stroke:var(--acid-ink);stroke-width:2}.mech .dash{stroke-dasharray:6 4}.mech .arrow{stroke:var(--acid-ink);stroke-width:2.5}.mech .tip{fill:var(--acid-ink)}
.question{font-weight:700;font-size:16px}
.guess-form label{display:block;font-weight:700;margin-bottom:6px}.guess-form .row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.guess-form input{flex:1 1 160px;min-width:0;min-height:44px;padding:0 12px;border:1px solid var(--edge);border-radius:0;background:transparent;color:var(--ink);font:700 18px var(--mono)}
.unit{font-weight:700;color:var(--muted)}.guess-form small{display:block;margin-top:6px;color:var(--muted)}
.feedback{min-height:1.6em;font-weight:700}
.guesses{list-style:none;padding:0;margin:10px 0;display:grid;gap:6px}.guesses li{display:grid;grid-template-columns:2em 1fr auto;gap:10px;align-items:center;border:1px solid var(--edge);padding:8px 12px}
.guesses li span{color:var(--muted)}.guesses em{font-style:normal;font-weight:900}.g-win{border-color:var(--acid)!important}.g-win em{color:var(--acid-ink)}.g-higher em::before{content:"\2191  "}.g-lower em::before{content:"\2193  "}
.result{border-top:1px solid var(--edge);margin-top:18px;padding-top:18px}.answer{font:900 20px var(--head);color:var(--acid-ink)}.working{padding-left:1.4em}.working li{margin:6px 0}
#share-text{width:100%;font:inherit;background:transparent;color:var(--ink);border:1px solid var(--edge);padding:8px}
.site-footer{display:flex;flex-wrap:wrap;gap:6px 14px;padding:16px;border-top:1px solid var(--edge);font-size:13px}.site-footer a{color:var(--ink);display:inline-flex;align-items:center;min-height:44px}.footer-home{color:var(--acid-ink)!important;font-weight:700}.footer-links{display:flex;flex-wrap:wrap;gap:0 14px}
.noscript{padding:16px;text-align:center}
@media (max-width:600px){.fb-long,.header-sub{display:none}.fb-short{display:inline}nav{gap:6px}.site-header{padding:8px 10px}.header-coffee img{width:86px;height:auto}}
@media (max-width:430px){.header-day,.header-feedback{display:none}.buttons button{flex:1 1 100%}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.wordmark{text-decoration:none}
#sky{width:100%;aspect-ratio:16/9;display:block;border:1px solid var(--edge);background:#000;touch-action:none}
.hud{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:8px;margin:10px 0}.hud div{border:1px solid var(--edge);padding:6px 10px}.hud b{display:block;font:900 20px var(--head)}.hud span{font-size:12px;color:var(--muted)}.hud .warn b{color:var(--bad)}
.pad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:10px 0}.pad button{min-height:56px;user-select:none;-webkit-user-select:none;touch-action:none}
.article{margin-top:40px;border-top:1px solid var(--edge);padding-top:20px}.article p{max-width:68ch}.faq dt{font-weight:700;margin-top:14px}.faq dd{margin:4px 0 0}.stl-slot[hidden]{display:none}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;border:0;padding:0;margin:14px 0 0}.tiers legend{font-weight:900;margin-bottom:6px}.tiers button{text-align:left;padding:8px 12px;min-height:60px}.tiers small{display:block;font-weight:400;color:var(--muted)}.tiers [aria-pressed=true]{border-color:var(--acid);box-shadow:inset 0 0 0 1px var(--acid)}
.sound{display:inline-flex;align-items:center;gap:6px;min-height:44px;font-weight:700}.sound input{width:20px;height:20px;accent-color:var(--acid)}
.hud{grid-template-columns:repeat(auto-fit,minmax(118px,1fr))}.hud b{font-size:18px}
.scope{position:relative}#sky.frozen{filter:saturate(.4)}.alarm{position:absolute;left:12px;right:12px;top:30px;display:grid;gap:6px;justify-items:start;padding:12px;background:rgba(40,0,0,.9);border:2px solid #ff5c3a;color:#fff}.alarm b{color:#ffb347;font:900 20px var(--head)}
.pad{grid-template-columns:repeat(4,1fr)}.pad .abort{grid-column:span 2;border-color:#ff5c3a;color:#ff8a5c}
.grid-line{font-size:22px;letter-spacing:2px}
.alarm[hidden]{display:none}@media (min-width:601px){.hud{grid-template-columns:repeat(4,1fr)}}
/* Lorenz look: header, panels, type and title screen (rules lifted from lorenz/css/style.css) */
:root{--header:64px;--panel:#0b0e0c;--line:#293026;--edge:#606b58}
:root[data-theme=light]{--panel:#ffffff;--line:#d3d8cc;--edge:#828a78}
body{font:13px/1.55 var(--mono)}
h1,h2,h3{font-family:'Arial Black',Arial,Helvetica,sans-serif;font-weight:900;line-height:1.1;text-transform:none}
h2{font-size:27px}.muted{color:var(--muted)}.tiny{font-size:12px;letter-spacing:.02em;line-height:1.6;color:var(--muted)}
.eyebrow{font:12px/1.5 var(--mono);color:var(--muted);letter-spacing:0;text-transform:none;margin:0 0 10px}
.small-heading{font-size:17px;margin:0}.section-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px}.section-top>.eyebrow{margin:0}
.site-header{height:var(--header);padding:0 30px;border-bottom:1px solid var(--line);background:#080a08ed;z-index:20;gap:14px}
:root[data-theme=light] .site-header{background:#fbfaf6ed}
.wordmark{font-size:25px;gap:10px}.wordmark svg{stroke:var(--acid-ink);margin-right:4px}.header-sub{font-size:12px;margin-left:10px}
.site-header nav{gap:26px;font-size:12px;white-space:nowrap}.header-feedback{color:var(--muted);text-decoration:none}.header-feedback span{border-bottom:1px dotted var(--edge)}.header-coffee img{height:30px;width:auto}
button{font-size:13px}
.primary,.secondary{min-height:50px;display:flex;align-items:center;justify-content:space-between;gap:26px;padding:14px 20px}
.primary{color:#11150a;font-weight:800}.primary:hover{background:#e6ff59;border-color:#e6ff59}.primary span[aria-hidden]{font-size:20px;line-height:1}.secondary{background:#0c100d}
:root[data-theme=light] .secondary{background:#fff}
.text-button{background:none;border:0;padding:7px 0;min-height:36px;font-size:12px;color:var(--muted)}
main{max-width:none;padding:0}
.title-screen{min-height:calc(100svh - var(--header));display:flex;align-items:center;position:relative;overflow:hidden}
.title-stage{position:absolute;top:0;right:0;bottom:0;left:38%;z-index:1;background:radial-gradient(ellipse at 55% 55%,#141b10 0%,#080a08 68%)}
.title-stage img{width:100%;height:100%;object-fit:cover;object-position:60% 50%;display:block;opacity:.9}
.title-copy{width:53%;max-width:780px;padding:56px 5vw 50px;position:relative;z-index:2;background:linear-gradient(90deg,var(--bg) 70%,transparent)}
.title-copy h1{font-size:clamp(46px,5.4vw,84px);line-height:1;margin:0 0 24px;text-transform:none}
.hero-copy{font-size:16px;line-height:1.6;margin-bottom:12px;max-width:560px}
.hero-detail{color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:24px;max-width:560px}
.hero-buttons{display:flex;gap:10px;flex-wrap:wrap}.hero-buttons .primary{min-width:220px}.hero-buttons .secondary{min-width:160px}
.hero-facts{margin:22px 0 0;font-size:13px;line-height:1.7;max-width:560px}
.mode-switch{margin:0 0 18px;max-width:560px}
.tiers legend{font:12px/1.5 var(--mono);color:var(--muted);margin-bottom:8px}.tiers{margin:0;gap:6px}.tiers button{font-size:13px;background:var(--panel);border-color:var(--line)}
.stats{margin-top:16px;max-width:560px}.stats div{border-color:var(--line);background:var(--panel)}
.title-links{display:flex;gap:22px;flex-wrap:wrap;align-items:center;font-size:12px;margin-top:22px}.title-links a{color:var(--ink);border-bottom:1px solid var(--edge);padding-bottom:4px;text-decoration:none;min-height:0}
.sound{min-height:36px;font-weight:400}
.game-screen{padding:22px 30px 30px}
.game-grid{display:grid;grid-template-columns:minmax(340px,440px) minmax(0,1fr);gap:22px;align-items:start;max-width:1700px;margin:0 auto}
.game-controls{display:grid;gap:14px}
.card-box{background:var(--panel);border:1px solid var(--line);padding:18px 20px}
.game-stage{display:grid;gap:14px}.scope #sky{border-color:var(--line)}
.hud{grid-template-columns:1fr 1fr!important;gap:6px;margin:12px 0 0}.hud div{border-color:var(--line);background:var(--bg)}
.pad{grid-template-columns:1fr 1fr;margin:8px 0 10px}.pad button{background:var(--bg);border-color:var(--line)}.pad .abort{grid-column:span 2}
.feedback{margin:0}
.article{max-width:860px;margin:0 auto;padding:30px 16px 20px;font-size:14px}
body[data-screen=game] .article,body[data-screen=game] .dexm-signup{display:none}
@media(max-width:860px){.header-day{display:none}.site-header{padding:0 14px}.site-header nav{gap:14px}}
@media(max-width:760px){.title-screen{display:block;min-height:0}.title-stage{position:relative;left:0;height:200px}.title-copy{width:auto;padding:22px 16px 30px;background:none}.title-copy h1{font-size:40px}.game-screen{padding:12px}.game-grid{grid-template-columns:1fr}.game-stage{order:-1}.hero-buttons>*{flex:1 1 100%}}
.screen[hidden]{display:none!important}
.patch{position:absolute;right:28px;bottom:28px;margin:0;display:flex;align-items:center;gap:12px;padding:10px 14px 10px 10px;background:#080a08d9;border:1px solid var(--line);color:var(--muted);font:11px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase}
.patch img{width:56px;height:56px;border-radius:50%;opacity:.95}
.patch figcaption{border-left:3px solid var(--acid);padding-left:10px}
@media(max-width:760px){.patch{right:10px;bottom:10px;padding:6px 10px 6px 6px}.patch img{width:36px;height:36px}}
@media(max-width:760px){.game-controls{display:contents}.game-stage{order:0}.game-controls>.card-box:nth-child(2){order:1}.game-controls>.card-box:first-child{order:2}#feedback{order:1}.card-box{padding:14px}}
@media(max-width:760px){.game-controls>.card-box:first-child{order:0}.game-stage{order:1}.game-controls>.card-box:nth-child(2){order:2}#feedback{order:1}.hud b{font-size:15px}.hud div{padding:4px 8px}#site-note{display:none}}
#feedback:empty{display:none}
@media(max-width:760px){.hud{grid-template-columns:repeat(4,1fr)!important;gap:4px}.hud b{font-size:13px}.hud span{font-size:10px;line-height:1.3;display:block}.hud div{padding:4px 5px}#flight-h{font-size:20px}}
#back{min-height:44px;padding:0 4px}