@font-face{font-family:'Geist';font-style:normal;font-weight:100 900;font-display:swap;src:url(../fonts/geist-latin-wght-normal.19f9c92546.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/geist-mono-latin-400-normal.3f98383b12.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/geist-mono-latin-500-normal.72971bd490.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Instrument Serif';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/instrument-serif-latin-400-normal.5eb09b5ac0.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Instrument Serif';font-style:italic;font-weight:400;font-display:swap;src:url(../fonts/instrument-serif-latin-400-italic.5a51946dff.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  --bg:#060609;
  --bg-2:#0B0B10;
  --bg-3:#101016;
  --line:rgba(255,255,255,.075);
  --line-2:rgba(255,255,255,.12);
  --line-3:rgba(255,255,255,.2);
  --text:#F1EEEA;
  --text-2:#B7B2AC;
  --muted:#86827E;
  --dim:#5C5A59;
  --accent:#E8754F;
  --accent-rgb:232,117,79;
  --amber:#F4A867;
  --amber-rgb:244,168,103;
  --deep-rust:#A8401F;
  --star:#A9BDFF;
  --star-rgb:169,189,255;
  --ok:#7FE0A8;
  --danger:#FF7A7A;
  --radius:20px;
  --radius-lg:28px;
  --maxw:1200px;
  --readw:720px;
  --font:"Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --serif:"Instrument Serif", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --mono:"Geist Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --ease:cubic-bezier(0.16,1,0.3,1);
  --ease-io:cubic-bezier(0.65,0,0.35,1);
  --fast:220ms;
  --reveal:1000ms;
  --ember:linear-gradient(100deg,#FFC896 0%,#F4A867 28%,#E8754F 62%,#C9532E 100%);
  --neb-rgb:70,72,170;
  --btn-radius:999px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;background:var(--bg);scroll-padding-top:96px}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;text-rendering:optimizeLegibility;font-feature-settings:"ss01","cv11"}
::selection{background:rgba(var(--accent-rgb),.4);color:#fff}
a{color:inherit;text-decoration:none}
svg{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 32px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;left:16px;top:16px;z-index:200;background:var(--text);color:var(--bg);padding:10px 14px;border-radius:8px;font-weight:600;transform:translateY(-200%);transition:transform var(--fast) var(--ease)}
.skip:focus{transform:none}
.serif{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.01em}
.ember-text{background:var(--ember);-webkit-background-clip:text;background-clip:text;color:transparent}

.grain{position:fixed;inset:0;pointer-events:none;z-index:60;opacity:.025;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}

.preview-banner{position:relative;z-index:70;background:linear-gradient(90deg,rgba(var(--accent-rgb),.18),rgba(var(--amber-rgb),.10));
  border-bottom:1px solid var(--line-2);font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--amber);text-align:center;padding:10px 16px}
.preview-banner strong{color:var(--text);font-weight:500;letter-spacing:.04em}

.nav{position:fixed;inset:0 0 auto 0;z-index:50;top:0;transition:transform 400ms var(--ease)}
body.has-banner .nav{top:38px}
.nav::before{content:"";position:absolute;inset:0;background:rgba(6,6,9,.66);backdrop-filter:saturate(170%) blur(18px);-webkit-backdrop-filter:saturate(170%) blur(18px);
  border-bottom:1px solid var(--line);opacity:0;transition:opacity 300ms var(--ease)}
.nav.scrolled::before{opacity:1}
.nav-inner{position:relative;display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:inline-flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.02em;font-size:16.5px}
.logo-mark{width:24px;height:24px;flex:none;overflow:visible}
.logo-mark .core{transform-origin:center;transform-box:fill-box;transition:transform 300ms var(--ease)}
.logo-mark .orbit{transform-origin:center;transform-box:view-box;transition:transform 700ms var(--ease)}
.logo:hover .logo-mark .core{transform:scale(1.25)}
.logo:hover .logo-mark .orbit{transform:rotate(-40deg)}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links .link{position:relative;display:inline-flex;align-items:center;gap:7px;color:var(--text-2);font-size:14px;padding:8px 13px;border-radius:9px;transition:color var(--fast) var(--ease),background var(--fast) var(--ease)}
.nav-links .link:hover{color:var(--text);background:rgba(255,255,255,.045)}
.nav-links .link[aria-current="page"]{color:var(--text)}
.nav-links .link[aria-current="page"]::after{content:"";position:absolute;left:50%;bottom:1px;width:4px;height:4px;margin-left:-2px;border-radius:50%;background:var(--accent);box-shadow:0 0 8px rgba(var(--accent-rgb),.9)}

.btn{--h:48px;position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:var(--h);padding:0 22px;
  border-radius:var(--btn-radius);border:0;font:500 14.5px/1 var(--font);letter-spacing:-.01em;cursor:pointer;white-space:nowrap;
  transition:transform 300ms var(--ease),background var(--fast) var(--ease),border-color var(--fast) var(--ease),box-shadow 300ms var(--ease),color var(--fast) var(--ease)}
.btn:active{transform:scale(.97)}
.btn .arrow{display:inline-block;transition:transform 300ms var(--ease)}
.btn:hover .arrow{transform:translateX(3px)}
.btn-primary{background:linear-gradient(180deg,#F09A6E,#E8754F 55%,#C9532E);color:#1a0c08;box-shadow:0 10px 30px -12px rgba(var(--accent-rgb),.8),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-primary:hover{box-shadow:0 14px 36px -12px rgba(var(--accent-rgb),.95),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-ghost{background:transparent;color:var(--text-2);box-shadow:inset 0 0 0 1px var(--line-2)}
.btn-ghost:hover{color:var(--text);background:rgba(255,255,255,.04)}

.page-hero{position:relative;isolation:isolate;overflow:hidden;padding:clamp(150px,17vw,220px) 0 clamp(56px,7vw,88px);text-align:center;
  background-color:var(--bg);
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,.7), transparent 60%),
    radial-gradient(1px 1px at 72% 12%, rgba(255,235,220,.55), transparent 60%),
    radial-gradient(1.5px 1.5px at 36% 66%, rgba(255,255,255,.5), transparent 60%),
    radial-gradient(1px 1px at 86% 48%, rgba(210,220,255,.65), transparent 60%),
    radial-gradient(1px 1px at 24% 88%, rgba(255,255,255,.4), transparent 60%),
    radial-gradient(1px 1px at 58% 36%, rgba(255,255,255,.35), transparent 60%),
    radial-gradient(55% 45% at 50% 0%, rgba(var(--neb-rgb),.20), transparent 70%),
    radial-gradient(40% 50% at 50% 100%, rgba(var(--accent-rgb),.14), transparent 70%);
  background-size:240px 240px,240px 240px,240px 240px,240px 240px,240px 240px,240px 240px,100% 100%,100% 100%;
  background-repeat:repeat,repeat,repeat,repeat,repeat,repeat,no-repeat,no-repeat}
.page-hero::after{content:"";position:absolute;inset:auto 0 0 0;height:160px;z-index:-1;pointer-events:none;background:linear-gradient(to bottom,transparent,var(--bg))}
.frame{position:absolute;inset:88px 24px 24px;pointer-events:none;z-index:0}
.page-hero .frame{inset:88px 24px 0}
.page-hero .frame i:nth-child(3),.page-hero .frame i:nth-child(4){display:none}
.frame i{position:absolute;width:14px;height:14px;border-color:rgba(255,255,255,.22);border-style:solid;border-width:0}
.frame i:nth-child(1){left:0;top:0;border-left-width:1px;border-top-width:1px}
.frame i:nth-child(2){right:0;top:0;border-right-width:1px;border-top-width:1px}
.frame i:nth-child(3){left:0;bottom:0;border-left-width:1px;border-bottom-width:1px}
.frame i:nth-child(4){right:0;bottom:0;border-right-width:1px;border-bottom-width:1px}
.side-tag{position:absolute;top:50%;font:500 10.5px/1 var(--mono);letter-spacing:.28em;text-transform:uppercase;color:rgba(255,255,255,.3);white-space:nowrap;writing-mode:vertical-rl;transform:translateY(-50%)}
.side-tag.l{left:-17px;transform:translateY(-50%) rotate(180deg)}
.side-tag.r{right:-17px}

.eyebrow{display:inline-flex;align-items:center;gap:12px;padding:8px 16px 8px 12px;border-radius:999px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));box-shadow:inset 0 0 0 1px var(--line-2),inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  font:500 11px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--text-2)}
.eyebrow .sep{width:1px;height:10px;background:var(--line-3)}
.pulse{position:relative;width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;box-shadow:0 0 10px rgba(var(--accent-rgb),.9)}
.pulse::after{content:"";position:absolute;inset:0;border-radius:50%;background:var(--accent);animation:ping 2.4s var(--ease) infinite}
@keyframes ping{0%{transform:scale(1);opacity:.7}100%{transform:scale(3.4);opacity:0}}
@keyframes rise{to{opacity:1;transform:none}}

.intro{opacity:0;transform:translateY(8px);animation:rise 220ms var(--ease) forwards;animation-delay:var(--d,0ms)}
.page-title{margin:34px auto 0;max-width:16ch;font-weight:500;letter-spacing:-.05em;line-height:1;font-size:clamp(40px,6.4vw,92px);text-wrap:balance}
.page-title .serif{font-size:1.06em;letter-spacing:-.02em;line-height:.95;background:var(--ember);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{margin:30px auto 0;max-width:620px;color:var(--text-2);font-size:clamp(16px,1.35vw,19px);line-height:1.65;letter-spacing:-.01em;text-wrap:pretty}
.scroll-cue{display:inline-flex;flex-direction:column;align-items:center;gap:12px;margin-top:clamp(48px,6vw,72px);font:500 10.5px/1 var(--mono);letter-spacing:.24em;text-transform:uppercase;color:var(--dim);transition:color var(--fast) var(--ease)}
.scroll-cue:hover{color:var(--text-2)}
.scroll-cue::after{content:"";width:1px;height:44px;background:linear-gradient(var(--line-3),transparent);animation:cue 2.4s var(--ease-io) infinite}
@keyframes cue{0%{transform:scaleY(0);transform-origin:top}45%{transform:scaleY(1);transform-origin:top}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

.section{position:relative;padding:clamp(72px,10vw,120px) 0}
.sec-label{display:flex;align-items:center;gap:14px;font:500 11.5px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin:0 0 clamp(28px,4vw,44px)}
.sec-label .n{color:var(--amber)}
.sec-label .rule{flex:1;height:1px;background:linear-gradient(90deg,var(--line-2),transparent)}

.layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start}
.toc{position:sticky;top:112px;padding:18px 0}
.toc h2{margin:0 0 14px;font:500 11px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}
.toc ol{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:2px}
.toc a{display:block;padding:8px 10px;border-radius:8px;font-size:13.5px;line-height:1.35;color:var(--muted);border-left:2px solid transparent;transition:color var(--fast) var(--ease),background var(--fast) var(--ease),border-color var(--fast) var(--ease)}
.toc a:hover{color:var(--text);background:rgba(255,255,255,.03)}
.toc a.is-active{color:var(--text);border-left-color:var(--accent);background:rgba(var(--accent-rgb),.06)}

.content{min-width:0;max-width:760px}
.statement{font-size:clamp(26px,3.6vw,44px);line-height:1.15;letter-spacing:-.035em;font-weight:500;margin:0 0 28px;max-width:22ch;text-wrap:balance}
.statement em{font-family:var(--serif);font-style:italic;font-weight:400;background:var(--ember);-webkit-background-clip:text;background-clip:text;color:transparent;padding-right:.03em}

.prose{color:var(--text-2);font-size:17.5px;line-height:1.72}
.prose h2{color:var(--text);font-size:clamp(26px,3.2vw,34px);line-height:1.15;margin:0 0 .55em;font-weight:500;letter-spacing:-.03em}
.prose h3{color:var(--text);font-size:20px;margin:1.7em 0 .45em;font-weight:500;letter-spacing:-.02em}
.prose p,.prose ul,.prose ol{margin:0 0 1.15em}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin:.35em 0}
.prose strong{color:var(--text);font-weight:600}
.prose a{color:var(--amber);text-decoration:underline;text-decoration-color:rgba(var(--accent-rgb),.4);text-underline-offset:3px;overflow-wrap:anywhere}
.prose a:hover{text-decoration-color:var(--accent)}
.prose em{color:var(--text);font-style:italic}

.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:28px 0 32px}
.stat{padding:18px 16px;border-radius:16px;background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012));
  box-shadow:inset 0 0 0 1px var(--line),inset 0 1px 0 rgba(255,255,255,.05)}
.stat .k{display:block;font:500 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin-bottom:10px}
.stat .v{display:block;font-size:clamp(22px,2.4vw,28px);letter-spacing:-.03em;font-weight:500;color:var(--text);font-variant-numeric:tabular-nums;line-height:1.1}
.stat .u{display:block;margin-top:6px;font-size:13px;color:var(--muted);line-height:1.4}

.diagram{margin:32px 0;padding:20px 18px 14px;border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,.01));
  box-shadow:inset 0 0 0 1px var(--line),0 30px 60px -48px rgba(0,0,0,.9)}
.diagram figcaption{margin-top:12px;font-size:13px;color:var(--muted);line-height:1.5}
.diagram .caption-label{font:500 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-right:8px}

.callout{margin:28px 0;padding:20px 22px;border-radius:16px;background:rgba(var(--accent-rgb),.07);box-shadow:inset 0 0 0 1px rgba(var(--accent-rgb),.22)}
.callout.ok{background:rgba(127,224,168,.06);box-shadow:inset 0 0 0 1px rgba(127,224,168,.2)}
.callout.warn{background:rgba(255,122,122,.06);box-shadow:inset 0 0 0 1px rgba(255,122,122,.22)}
.callout .label{display:block;font:500 10.5px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--amber);margin-bottom:8px}
.callout.ok .label{color:var(--ok)}
.callout.warn .label{color:var(--danger)}
.callout p{margin:0;color:var(--text-2);font-size:15.5px;line-height:1.6}
.callout strong{color:var(--text)}

.checklist{margin:24px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.checklist li{display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;padding:14px 16px;border-radius:14px;
  background:rgba(255,255,255,.02);box-shadow:inset 0 0 0 1px var(--line)}
.checklist .mark{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font:500 11px/1 var(--mono);color:#1a0c08;background:var(--accent)}
.checklist .mark.open{background:transparent;color:var(--amber);box-shadow:inset 0 0 0 1px rgba(var(--amber-rgb),.5)}
.checklist strong{display:block;color:var(--text);margin-bottom:2px}
.checklist span{color:var(--muted);font-size:14.5px;line-height:1.5}

.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.help-card{padding:22px;border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.012));
  box-shadow:inset 0 0 0 1px var(--line)}
.help-card h3{margin:0 0 8px;font-size:18px;letter-spacing:-.02em;font-weight:500}
.help-card p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.55}
.help-card .tag{display:inline-block;margin-bottom:12px;font:500 10.5px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--amber)}

.sources{margin-top:48px;padding:24px 24px 10px;border:1px solid var(--line-2);border-radius:var(--radius);background:var(--bg-2)}
.sources h2{margin:0 0 14px;font:500 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.sources ol{margin:0;padding:0 0 8px 1.2em}
.sources li{font-size:14.5px;line-height:1.55;color:var(--text-2);margin:.55em 0}
.sources a{color:var(--amber);text-decoration:underline;text-decoration-color:rgba(var(--accent-rgb),.35);text-underline-offset:3px;overflow-wrap:anywhere}

.art-cta{margin-top:48px;padding:34px 28px;border-radius:var(--radius-lg);border:1px solid var(--line-2);text-align:center;
  background:radial-gradient(60% 90% at 100% 0%,rgba(var(--star-rgb),.16),transparent 60%),radial-gradient(50% 80% at 0% 100%,rgba(var(--accent-rgb),.10),transparent 60%),linear-gradient(180deg,var(--bg-3),var(--bg-2))}
.art-cta h2{font-size:clamp(24px,3.4vw,32px);margin:0 0 .4em;font-weight:500}
.art-cta p{color:var(--text-2);margin:0 auto 20px;max-width:48ch}
.art-cta .btn-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}

.v10-foot{padding:48px 0 40px;border-top:1px solid var(--line);margin-top:40px}
.v10-row ul{display:flex;flex-wrap:wrap;gap:8px 24px;list-style:none;margin:0;padding:0;font-size:14px}
.v10-row a{color:var(--text-2)}
.v10-row a:hover{color:var(--text)}
.v10-fine{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;margin-top:24px;font-size:13px;color:var(--muted)}
.v10-fine p{margin:0}
.v10-fine a{color:var(--text-2);text-decoration:underline;text-underline-offset:3px}

.reveal{opacity:0;transform:translateY(8px);transition:opacity 220ms var(--ease),transform 220ms var(--ease);transition-delay:var(--d,0ms)}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

.d-sun{fill:#F4A867}
.d-earth{fill:#7FA8FF}
.d-mars{fill:#E8754F}
.d-orbit{fill:none;stroke:rgba(255,255,255,.18);stroke-width:1.2}
.d-transfer{fill:none;stroke:#F4A867;stroke-width:1.8;stroke-dasharray:5 4}
.d-label{fill:var(--text-2);font-family:var(--mono);font-size:11px;letter-spacing:.04em}
.d-title{fill:var(--text);font-family:var(--font);font-size:13px;font-weight:500}
.d-dim{fill:var(--dim);font-family:var(--mono);font-size:10px}
.d-grid{stroke:rgba(255,255,255,.06);stroke-width:1}
.d-bar-earth{fill:#7FA8FF}
.d-bar-mars{fill:#E8754F}
.d-bar-cruise{fill:#F4A867}
.d-shell{fill:none;stroke:rgba(255,255,255,.25);stroke-width:1.5}
.d-soil{fill:rgba(232,117,79,.18);stroke:rgba(232,117,79,.45);stroke-width:1}
.d-hab{fill:rgba(169,189,255,.12);stroke:#A9BDFF;stroke-width:1.5}

@media (max-width:980px){
  .layout{grid-template-columns:1fr}
  .toc{position:relative;top:auto;margin-bottom:8px;padding:0 0 8px;border-bottom:1px solid var(--line)}
  .toc ol{display:flex;flex-direction:row;flex-wrap:wrap;gap:6px}
  .toc a{border-left:0;padding:7px 10px;background:rgba(255,255,255,.03);font-size:12.5px}
  .toc a.is-active{box-shadow:inset 0 0 0 1px rgba(var(--accent-rgb),.45);background:rgba(var(--accent-rgb),.08)}
  .stat-grid{grid-template-columns:1fr 1fr}
  .help-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .nav-links .link:not(.icon-link){display:none}
  .nav-inner{height:64px}
  body.has-banner .nav{top:52px}
  .preview-banner{font-size:11px;letter-spacing:.04em;padding:12px 14px}
  .side-tag{display:none}
  .page-hero{padding-top:170px}
  .stat-grid{grid-template-columns:1fr}
  .frame{inset:76px 12px 12px}
  .page-hero .frame{inset:116px 12px 0}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:1ms!important;animation-delay:0ms!important;animation-iteration-count:1!important;transition-duration:1ms!important;transition-delay:0ms!important}
  .intro,.reveal{opacity:1;transform:none}
  .pulse::after,.scroll-cue::after{display:none;animation:none}
}

/* ---- flagship additions: footnotes, trade-offs, open questions ---- */
.fn{display:inline-block;margin-left:2px;font:500 .62em/1 var(--mono);vertical-align:super;letter-spacing:0;color:var(--amber)!important;text-decoration:none!important;padding:1px 3px;border-radius:4px;background:rgba(var(--amber-rgb),.10)}
.fn:hover{background:rgba(var(--amber-rgb),.22)}
.tag-model{display:inline-block;font:500 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--star);padding:3px 6px;border-radius:5px;background:rgba(var(--star-rgb),.10);box-shadow:inset 0 0 0 1px rgba(var(--star-rgb),.28);vertical-align:2px;margin-right:4px}
.tag-meas{display:inline-block;font:500 10px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--ok);padding:3px 6px;border-radius:5px;background:rgba(127,224,168,.08);box-shadow:inset 0 0 0 1px rgba(127,224,168,.28);vertical-align:2px;margin-right:4px}
.legend{display:flex;flex-wrap:wrap;gap:14px;margin:18px auto 0;justify-content:center;font-size:13px;color:var(--muted)}
.trade{margin:28px 0;border-radius:var(--radius);overflow:hidden;box-shadow:inset 0 0 0 1px var(--line-2);background:var(--bg-2)}
.trade h3{margin:0;padding:16px 18px;font:500 11px/1.3 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--amber);border-bottom:1px solid var(--line)}
.trade-scroll{overflow-x:auto}
.trade table{width:100%;border-collapse:collapse;font-size:14.5px;line-height:1.5;min-width:560px}
.trade th,.trade td{text-align:left;vertical-align:top;padding:12px 16px;border-bottom:1px solid var(--line)}
.trade thead th{font:500 10.5px/1.3 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim);background:rgba(255,255,255,.02)}
.trade tbody th{color:var(--text);font-weight:500}
.trade td{color:var(--text-2)}
.trade tr.win th,.trade tr.win td{background:rgba(var(--accent-rgb),.06)}
.trade tr.win th::before{content:"Chosen ";font:500 9.5px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:5px}
.trade .why{margin:0;padding:14px 18px 16px;color:var(--text-2);font-size:14.5px;line-height:1.6}
.trade .why strong{color:var(--text)}
.open-q{margin:32px 0 0;padding:20px 22px;border-radius:16px;background:rgba(255,255,255,.02);box-shadow:inset 0 0 0 1px var(--line-2);border-left:2px solid var(--amber)}
.open-q h3{margin:0 0 10px!important;font:500 11px/1 var(--mono)!important;letter-spacing:.16em;text-transform:uppercase;color:var(--amber)!important}
.open-q ul{margin:0;padding-left:1.15em}
.open-q li{font-size:15px;line-height:1.55;color:var(--text-2);margin:.4em 0}
.math{margin:20px 0;padding:16px 18px;border-radius:14px;background:var(--bg-2);box-shadow:inset 0 0 0 1px var(--line);font:400 14px/1.75 var(--mono);color:var(--text-2);overflow-x:auto}
.math b{color:var(--text);font-weight:500}
.math .c{color:var(--dim)}
.chapter{scroll-margin-top:110px;padding-top:56px;margin-top:56px;border-top:1px solid var(--line)}
.chapter:first-of-type{border-top:0;margin-top:0;padding-top:0}
.chapter-kicker{display:block;font:500 11px/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.d-axis{stroke:rgba(255,255,255,.22);stroke-width:1}
.d-limit{stroke:#FF7A7A;stroke-width:1.5;stroke-dasharray:4 4}
.d-limit-label{fill:#FF7A7A;font-family:var(--mono);font-size:10.5px}
.d-bar-star{fill:#A9BDFF}
.d-bar-ok{fill:#7FE0A8}
.d-bar-dim{fill:rgba(255,255,255,.18)}
.d-value{fill:var(--text);font-family:var(--font);font-size:12px;font-weight:500}
.d-rock{fill:rgba(168,64,31,.35);stroke:rgba(232,117,79,.5);stroke-width:1}
.d-ray{stroke:#A9BDFF;stroke-width:1.2;stroke-linecap:round}
.d-ray-faint{stroke:rgba(169,189,255,.35);stroke-width:1.2;stroke-linecap:round}
.d-ellipse-mars{fill:none;stroke:rgba(232,117,79,.55);stroke-width:1.4}
.d-sector{fill:rgba(232,117,79,.14)}
.d-dot-amber{fill:#F4A867}
.footnote-key{font-size:13.5px;color:var(--muted);margin:12px 0 0}
.scale-note{font:400 11px/1.4 var(--mono);fill:var(--dim)}
@media (max-width:640px){.prose{font-size:16.5px}.math{font-size:12.5px}}

/* flagship: inline study/article links */
.tlink{color:var(--amber);text-decoration:underline;text-decoration-color:rgba(var(--accent-rgb),.4);text-underline-offset:3px}
.tlink:hover{color:var(--text);text-decoration-color:rgba(var(--accent-rgb),.8)}
.help-card{display:block;color:inherit;transition:transform 220ms var(--ease),background 220ms var(--ease)}
.help-card:hover{transform:translateY(-2px);background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02))}

/* School mode — FAIL CLOSED. Discord (13+) hidden by default; revealed only
   when assets/js/school-mode.js adds html.discord-ok (non-school audience).
   [data-school-only] = educational bits shown by default, hidden when Discord revealed. */
html:not(.discord-ok) [data-hide-school]{display:none!important}
html.discord-ok [data-school-only]{display:none!important}
html.school-mode [data-hide-school]{display:none!important}