/* Node Hour — shared shell
   colour encodes provenance: cyan = measured, amber = simulated */
:root{
  --ground:#F1F4F4; --panel:#FFFFFF; --panel-2:#F7F9F9; --line:#DCE3E4; --line-soft:#E9EEEE;
  --text:#16211F; --muted:#66787B; --dim:#9AAAAD;
  --real:#2A7C9C; --real-bg:rgba(42,124,156,.10);
  --sim:#B47A1C;  --sim-bg:rgba(180,122,28,.12);
  --bid:#25806A; --bid-bg:rgba(37,128,106,.13);
  --ask:#B94C3B; --ask-bg:rgba(185,76,59,.13);
  --shadow:0 1px 2px rgba(16,33,31,.06),0 8px 24px rgba(16,33,31,.05);
  --r:3px; --maxw:1560px;
}
@media (prefers-color-scheme:dark){ :root:not([data-theme="light"]){
  --ground:#080D10; --panel:#0F181D; --panel-2:#131F25; --line:#1D2B32; --line-soft:#17242A;
  --text:#CFDDE2; --muted:#7A9099; --dim:#4E626B;
  --real:#5FB5D6; --real-bg:rgba(95,181,214,.12);
  --sim:#DCA145;  --sim-bg:rgba(220,161,69,.13);
  --bid:#46AE90; --bid-bg:rgba(70,174,144,.14);
  --ask:#D96C58; --ask-bg:rgba(217,108,88,.14);
  --shadow:0 1px 0 rgba(255,255,255,.03),0 10px 30px rgba(0,0,0,.4);
}}
:root[data-theme="dark"]{
  --ground:#080D10; --panel:#0F181D; --panel-2:#131F25; --line:#1D2B32; --line-soft:#17242A;
  --text:#CFDDE2; --muted:#7A9099; --dim:#4E626B;
  --real:#5FB5D6; --real-bg:rgba(95,181,214,.12);
  --sim:#DCA145;  --sim-bg:rgba(220,161,69,.13);
  --bid:#46AE90; --bid-bg:rgba(70,174,144,.14);
  --ask:#D96C58; --ask-bg:rgba(217,108,88,.14);
  --shadow:0 1px 0 rgba(255,255,255,.03),0 10px 30px rgba(0,0,0,.4);
}

*{box-sizing:border-box}
/* author styles set display on .chip/.banner, which beats the UA rule for [hidden] */
[hidden]{display:none!important}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--ground); color:var(--text);
  font-family:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-size:12.5px; line-height:1.5; font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.sans{font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;font-weight:700;letter-spacing:.01em;margin:0;text-wrap:balance}
h1{font-size:clamp(30px,5vw,54px);line-height:1.04}
h2{font-size:clamp(20px,2.6vw,29px);line-height:1.12}
h3{font-size:16px}
p{margin:0}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
a{color:var(--real);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--real);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}

/* Mono is for numbers. Prose reads better — and more grown-up — in Sans. */
.prose,.prose p,.lead,.sub,.pt p,.doc p,.doc li,.callout,.note,.prose2,.big,
.step p,.lim p,.does div,.empty,.banner .bt,.strip .s,.mkt .d{
  font-family:"IBM Plex Sans",system-ui,-apple-system,sans-serif}

.lbl{font-family:"IBM Plex Sans Condensed",system-ui,sans-serif;text-transform:uppercase;
     letter-spacing:.1em;font-weight:600;font-size:10px;color:var(--muted)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 16px}
.narrow{max-width:960px;margin:0 auto;padding:0 16px}
.stack{display:flex;flex-direction:column}
.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.spacer{flex:1}
.muted{color:var(--muted)}
.dimt{color:var(--dim)}
.up{color:var(--bid)} .dn{color:var(--ask)}
.mono-lg{font-size:15px;font-weight:500}

/* nav */
/* opaque, not translucent: backdrop-filter on a sticky bar tears during
   scroll on mobile compositors, and a terminal gains nothing from glass */
.nav{position:sticky;top:0;z-index:20;background:var(--ground);border-bottom:1px solid var(--line)}
.nav .inner{max-width:var(--maxw);margin:0 auto;padding:9px 16px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.logo{display:flex;align-items:baseline;gap:8px;margin-right:6px}
.logo b{font-family:"IBM Plex Sans Condensed",sans-serif;font-size:17px;letter-spacing:.02em;color:var(--text)}
.logo b em{font-style:normal;color:var(--real)}
.nlink{padding:4px 9px;border-radius:2px;color:var(--muted);
  font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;font-weight:600;font-size:10.5px}
.nlink:hover{color:var(--text);text-decoration:none;background:var(--panel-2)}
.nlink[aria-current="page"]{color:var(--text);background:var(--panel-2)}
.navlinks{display:flex;gap:2px;min-width:0;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.navlinks::-webkit-scrollbar{display:none}
.navlinks .nlink{flex:none}

/* Two rows, never three: row 1 is identity + wallet, row 2 is navigation.
   Everything secondary scrolls with the links instead of forcing a third row. */
@media (max-width:820px){
  .nav .inner{flex-wrap:wrap;row-gap:7px;column-gap:7px;padding:8px 14px}
  .logo{order:1;margin-right:0}
  .spacer{order:2;flex:1}
  .nav [data-theme-toggle]{order:3}
  .nav [data-wallet-btn]{order:4}
  .navlinks{order:5;flex-basis:100%;margin:0 -14px;padding:0 14px}
  .nav .inner>.chip,.nav .inner>.btn:not(.primary):not([data-theme-toggle]){order:6}
  .nav .inner>.chip{font-size:9.5px}
}

/* chips & buttons */
.chip{display:inline-flex;align-items:center;gap:6px;border-radius:2px;padding:3px 7px;white-space:nowrap;
  font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;font-weight:600;font-size:10px}
.chip.sim{color:var(--sim);background:var(--sim-bg);border:1px solid color-mix(in srgb,var(--sim) 34%,transparent)}
.chip.real{color:var(--real);background:var(--real-bg);border:1px solid color-mix(in srgb,var(--real) 34%,transparent)}
.chip.ghost{color:var(--dim);border:1px solid var(--line)}
.dot{width:5px;height:5px;border-radius:50%;background:currentColor;flex:none}
.dot.live{animation:pulse 2.4s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.btn{border:1px solid var(--line);border-radius:2px;padding:6px 11px;color:var(--muted);
  font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.09em;font-weight:600;font-size:10.5px}
.btn:hover{color:var(--text);border-color:var(--dim)}
.btn.primary{background:var(--real);border-color:var(--real);color:#fff}
.btn.primary:hover{opacity:.9;color:#fff}
.btn.lg{padding:10px 18px;font-size:12px}

/* cards */
.card{border:1px solid var(--line);background:var(--panel);border-radius:var(--r);box-shadow:var(--shadow)}
.card>header{display:flex;align-items:center;gap:8px;padding:7px 11px;border-bottom:1px solid var(--line-soft);background:var(--panel-2)}
.card>header .lbl{color:var(--text)}
.pad{padding:12px}
.scroll{overflow-x:auto}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:11.5px}
.tbl th{text-align:left;padding:6px 11px;border-bottom:1px solid var(--line-soft);white-space:nowrap;
  font-family:"IBM Plex Sans Condensed",sans-serif;text-transform:uppercase;letter-spacing:.08em;font-size:10px;color:var(--muted);font-weight:600}
.tbl td{padding:6px 11px;border-bottom:1px solid var(--line-soft);white-space:nowrap}
.tbl tr:last-child td{border-bottom:none}
.num{text-align:right}
.empty{padding:22px 11px;text-align:center;color:var(--dim);font-size:11.5px}

code.q{display:block;background:var(--panel-2);border:1px solid var(--line-soft);border-radius:2px;
  padding:10px 11px;font-size:10.5px;color:var(--muted);overflow-x:auto;white-space:pre;line-height:1.65}
kbd{background:var(--panel-2);border:1px solid var(--line);border-radius:2px;padding:1px 4px;font-size:11px}

.prose{max-width:66ch;line-height:1.72;color:var(--muted);font-size:12.5px}
.prose b,.prose strong{color:var(--text);font-weight:600}

.foot{border-top:1px solid var(--line);margin-top:44px;padding:18px 0 34px}
.foot .inner{max-width:var(--maxw);margin:0 auto;padding:0 16px;display:flex;gap:8px 20px;flex-wrap:wrap;
  align-items:center;color:var(--dim);font-size:10.5px}

.toast{position:fixed;right:14px;bottom:14px;z-index:60;display:flex;flex-direction:column;gap:6px;max-width:320px}
.toast div{border:1px solid var(--line);background:var(--panel);border-radius:2px;padding:9px 11px;
  box-shadow:var(--shadow);font-size:11.5px;animation:in .16s ease-out}
@keyframes in{from{opacity:0;transform:translateY(5px)}}

/* wallet pill */
.wpill{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);border-radius:2px;padding:5px 9px;font-size:11px}
.wpill .addr{color:var(--text)}

/* a printed tick should be visible without being read */
@keyframes flashU{from{background:var(--bid-bg)}to{background:transparent}}
@keyframes flashD{from{background:var(--ask-bg)}to{background:transparent}}
.fu{animation:flashU .55s ease-out}
.fd{animation:flashD .55s ease-out}