/* GRAIL tribute — shared design system */
:root{
  --space:#05070f;--space-2:#0a0e1c;--panel:#0e1327;
  --bone:#f2ece0;--bone-dim:#b6b2a8;--line:rgba(242,236,224,.14);
  --high:#ff5e3a;--high-2:#ffb03a;--low:#4a6cf7;--low-2:#7fd3ff;--gold:#e8a33d;
  --maxw:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--space);color:var(--bone);
  font-family:"Newsreader",Georgia,serif;font-size:19px;line-height:1.65;
  overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit}
#stars{position:fixed;inset:0;z-index:0;display:block}
.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 28px}
.mono{font-family:"IBM Plex Mono",monospace;font-weight:500;letter-spacing:.02em}
h1,h2,h3{font-family:"Fraunces",serif;font-weight:400;line-height:1.03;margin:0}
.kicker{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.32em;
  text-transform:uppercase;color:var(--gold);font-weight:500}
.credit{font-family:"IBM Plex Mono",monospace;font-size:10.5px;letter-spacing:.08em;
  color:rgba(182,178,168,.6);text-transform:uppercase;margin-top:10px}

/* Top bars */
.telemetry{position:fixed;top:0;left:0;right:0;z-index:30;display:flex;
  justify-content:space-between;align-items:center;padding:9px 22px;
  font-family:"IBM Plex Mono",monospace;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--bone-dim);
  background:rgba(5,7,15,.86);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.telemetry .sig{color:var(--bone)}
.telemetry .dot{color:var(--high);animation:blink 2.4s steps(1) infinite}
@keyframes blink{50%{opacity:.25}}
.nav{position:fixed;top:37px;left:0;right:0;z-index:29;display:flex;gap:4px;
  align-items:center;padding:10px 22px;background:linear-gradient(180deg,rgba(5,7,15,.85),rgba(5,7,15,0));
  backdrop-filter:blur(4px)}
.nav .brand{font-family:"Fraunces",serif;font-size:18px;letter-spacing:.02em;margin-right:18px;text-decoration:none}
.nav .brand b{color:var(--gold);font-weight:600}
.nav a.link{font-family:"IBM Plex Mono",monospace;font-size:12px;letter-spacing:.14em;
  text-transform:uppercase;text-decoration:none;color:var(--bone-dim);padding:7px 13px;border-radius:8px;transition:all .25s}
.nav a.link:hover{color:var(--bone);background:rgba(242,236,224,.05)}
.nav a.link.active{color:var(--gold)}
.nav .spacer{flex:1}
.progressbar{position:fixed;top:0;left:0;height:2px;width:0;z-index:31;
  background:linear-gradient(90deg,var(--low),var(--gold),var(--high))}

/* Layout primitives */
section{position:relative;z-index:2;padding:96px 0}
.reveal{opacity:0;transform:translateY(24px);
  transition:opacity .9s cubic-bezier(.2,.7,.2,1),transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}
.head{display:flex;align-items:baseline;gap:18px;flex-wrap:wrap;margin-bottom:14px}
.head h2{font-size:clamp(32px,5.5vw,60px);font-weight:300;letter-spacing:-.01em}
.head .idx{font-family:"IBM Plex Mono",monospace;font-size:13px;color:var(--gold);letter-spacing:.2em}
.sub{max-width:720px;color:var(--bone-dim);font-size:19px;margin-bottom:44px}

/* Buttons */
.btn{font-family:"IBM Plex Mono",monospace;font-size:13px;letter-spacing:.12em;text-transform:uppercase;
  padding:13px 20px;border-radius:10px;border:1px solid var(--gold);background:rgba(232,163,61,.12);
  color:var(--gold);cursor:pointer;font-weight:600;transition:all .25s;text-decoration:none;display:inline-block}
.btn:hover{background:var(--gold);color:#20160a}
.btn.ghost{border-color:var(--line);background:transparent;color:var(--bone-dim)}
.btn.ghost:hover{color:var(--bone);border-color:var(--bone-dim);background:rgba(242,236,224,.04)}

/* Footer */
footer{padding:66px 0 90px;color:var(--bone-dim);font-size:14px;position:relative;z-index:2;border-top:1px solid var(--line);margin-top:40px}
footer a.tlink{color:var(--low-2);text-decoration:none;border-bottom:1px solid transparent;transition:border-color .3s}
footer a.tlink:hover{border-color:var(--low-2)}
.disclaimer{border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:26px;
  font-size:14px;color:var(--bone-dim);background:var(--space-2)}
.src{font-family:"IBM Plex Mono",monospace;font-size:12px;line-height:2}
.byline{margin-top:24px;font-family:"Fraunces",serif;font-style:italic;font-size:18px;color:var(--bone)}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
@media(max-width:640px){
  .nav{overflow-x:auto}
  body{font-size:18px}
}

/* Theme toggle */
.themebtn{margin-left:auto;font-size:15px;line-height:1;background:transparent;border:1px solid var(--line);
  color:var(--bone-dim);width:34px;height:34px;border-radius:9px;cursor:pointer;transition:all .25s;flex:none}
.themebtn:hover{color:var(--bone);border-color:var(--bone-dim);background:rgba(128,128,128,.08)}

/* Light mode */
body.light{
  --space:#f5f1e8;--space-2:#ece6d8;--panel:#fffdf8;
  --bone:#191a1f;--bone-dim:#5c584e;--line:rgba(20,18,12,.15);--gold:#a86f10;
}
body.light .telemetry{background:rgba(245,241,232,.9);border-bottom-color:var(--line)}
body.light .nav{background:linear-gradient(180deg,rgba(245,241,232,.92),rgba(245,241,232,0))}
body.light .credit{color:rgba(40,36,28,.5)}
body.light footer a.tlink{color:#2f6fd0}
body.light .readpanel .big{color:#2f6fd0}