/* ==========================================================================
   Jarva — shared design system
   Theme: stoic (marble, bronze, serif gravitas, the cardinal virtues)
          fused with a JARVIS-style HUD (obsidian, cyan readouts, arc reactor).
   Single stylesheet for every page. No frameworks, no build step.
   ========================================================================== */

:root{
  --void:#06090c;
  --panel:#0b1117;
  --panel-2:#0f171f;
  --raise:#131e27;

  --ink:#e9eff3;
  --ink-dim:#c3d0d8;
  --muted:#8b9ca8;
  --faint:#63737e;

  --cyan:#5cd8e6;
  --cyan-deep:#1d94a6;
  --cyan-glow:rgba(92,216,230,.16);
  --gold:#c9a227;
  --gold-soft:rgba(201,162,39,.15);

  --line:rgba(126,180,199,.15);
  --line-strong:rgba(126,180,199,.30);

  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;

  --max:1120px;
  --radius:4px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--void);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* Ambient HUD grid + vignette ------------------------------------------- */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(var(--line) 1px,transparent 1px),
    linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:74px 74px;
  opacity:.30;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 78%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse 70% 50% at 50% -10%,rgba(92,216,230,.10),transparent 60%);
}
main,header,footer{position:relative;z-index:1}

a{color:var(--cyan);text-decoration:none;transition:color .15s ease}
a:hover{color:#8ee9f3}

.wrap{max-width:var(--max);margin:0 auto;padding:0 30px}

/* Typography ------------------------------------------------------------ */
h1,h2,h3{font-family:var(--serif);font-weight:600;letter-spacing:-.015em;line-height:1.15;margin:0}
h1{font-size:clamp(38px,5.6vw,62px)}
h2{font-size:clamp(27px,3.6vw,38px)}
h3{font-size:19px;letter-spacing:0}

.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;font-weight:500;
  letter-spacing:.22em;text-transform:uppercase;color:var(--cyan);
  margin-bottom:20px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--cyan);opacity:.7}

.lead{color:var(--muted);font-size:17.5px;max-width:680px;margin:16px 0 0}
.latin{font-family:var(--serif);font-style:italic;color:var(--gold);font-size:16px;letter-spacing:.02em}

/* Header ---------------------------------------------------------------- */
header{
  position:sticky;top:0;z-index:40;
  background:rgba(6,9,12,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);font-family:var(--serif);
  font-size:21px;font-weight:600;letter-spacing:.04em}
.brand:hover{color:var(--ink)}
.brand .mark{filter:drop-shadow(0 0 7px var(--cyan-glow))}
.nav-links{display:flex;gap:4px;flex-wrap:wrap}
.nav-links a{
  color:var(--muted);font-size:14px;padding:8px 14px;border-radius:var(--radius);
  font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;
  border:1px solid transparent;transition:all .16s ease;
}
.nav-links a:hover{color:var(--ink);border-color:var(--line-strong);background:rgba(92,216,230,.05)}
.nav-links a.active{color:var(--cyan);border-color:var(--line-strong);background:rgba(92,216,230,.07)}

/* Hero ------------------------------------------------------------------ */
.hero{padding:104px 0 92px;position:relative}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center}
.hero h1 .accent{
  background:linear-gradient(100deg,var(--cyan),#a9eef5 55%,var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--ink-dim);font-size:19px;max-width:600px;margin:24px 0 0}
.hero-motto{margin:26px 0 0;padding-left:18px;border-left:2px solid var(--gold);}

.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px}
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius);
  font-family:var(--mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  border:1px solid var(--line-strong);transition:all .18s ease;
}
.btn-primary{background:linear-gradient(180deg,rgba(92,216,230,.16),rgba(92,216,230,.06));
  color:var(--cyan);border-color:rgba(92,216,230,.45)}
.btn-primary:hover{background:rgba(92,216,230,.22);color:#bff4fa;
  box-shadow:0 0 22px var(--cyan-glow);transform:translateY(-1px)}
.btn-ghost{color:var(--ink-dim);background:transparent}
.btn-ghost:hover{color:var(--ink);border-color:var(--line-strong);background:rgba(255,255,255,.03)}

/* Arc reactor ----------------------------------------------------------- */
.reactor{display:flex;align-items:center;justify-content:center}
.reactor svg{width:100%;max-width:320px;height:auto;filter:drop-shadow(0 0 26px rgba(92,216,230,.28))}
.spin-slow{transform-origin:100px 100px;animation:spin 34s linear infinite}
.spin-rev{transform-origin:100px 100px;animation:spin 22s linear infinite reverse}
.pulse{animation:pulse 4.2s ease-in-out infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:.55}50%{opacity:1}}
@media(prefers-reduced-motion:reduce){
  .spin-slow,.spin-rev,.pulse{animation:none}
  html{scroll-behavior:auto}
}

/* Readout strip --------------------------------------------------------- */
.readout{
  display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);background:rgba(11,17,23,.6);
}
.readout div{
  flex:1 1 200px;padding:20px 26px;border-right:1px solid var(--line);
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);
}
.readout div:last-child{border-right:none}
.readout b{display:block;font-family:var(--serif);font-size:17px;font-weight:600;
  letter-spacing:0;text-transform:none;color:var(--ink);margin-top:7px}

/* Sections -------------------------------------------------------------- */
section{padding:92px 0;border-top:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:52px}

/* Cards ----------------------------------------------------------------- */
.grid{display:grid;gap:20px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}

.card{
  position:relative;background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.card:hover{border-color:var(--line-strong);transform:translateY(-3px);
  box-shadow:0 14px 40px rgba(0,0,0,.5),0 0 0 1px rgba(92,216,230,.07)}
/* HUD corner brackets */
.card::before,.card::after{
  content:"";position:absolute;width:13px;height:13px;opacity:.55;transition:opacity .2s ease;
}
.card::before{top:-1px;left:-1px;border-top:1px solid var(--cyan);border-left:1px solid var(--cyan)}
.card::after{bottom:-1px;right:-1px;border-bottom:1px solid var(--cyan);border-right:1px solid var(--cyan)}
.card:hover::before,.card:hover::after{opacity:1}
.card .idx{font-family:var(--mono);font-size:11px;letter-spacing:.2em;color:var(--cyan);
  text-transform:uppercase;display:block;margin-bottom:14px}
.card h3{margin-bottom:10px;color:var(--ink)}
.card p{margin:0;color:var(--muted);font-size:15.5px}

/* Virtue cards (stoic) */
.virtue{text-align:left}
.virtue .lat{font-family:var(--serif);font-style:italic;color:var(--gold);font-size:14.5px;
  display:block;margin-bottom:6px;letter-spacing:.02em}

/* Split rows ------------------------------------------------------------ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.split h3{margin:0 0 8px;color:var(--ink)}
.split p{color:var(--muted);margin:0 0 26px;font-size:15.5px}
.split p:last-child{margin-bottom:0}

/* Stack list ------------------------------------------------------------ */
.stack{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden}
.stack div{padding:22px 26px;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.stack div:nth-child(2n){border-right:none}
.stack div:nth-last-child(-n+2){border-bottom:none}
.stack .k{font-family:var(--mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--cyan);display:block;margin-bottom:7px}
.stack .v{color:var(--ink-dim);font-size:15.5px}

/* Platform chips -------------------------------------------------------- */
.platforms{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px}
.platform{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.09em;text-transform:uppercase;
  padding:9px 18px;border:1px solid var(--line-strong);border-radius:var(--radius);
  color:var(--ink-dim);background:rgba(92,216,230,.04);
}

/* Prose (policy pages + API detail) ------------------------------------- */
.prose{max-width:820px}
.prose h2{margin:44px 0 12px}
.prose h3{margin:30px 0 8px;color:var(--ink)}
.prose p{color:var(--muted);margin:0 0 15px}
.prose ul{margin:0 0 18px;padding-left:22px;color:var(--muted)}
.prose li{margin:9px 0}
.prose strong{color:var(--ink-dim)}
.prose a{border-bottom:1px solid rgba(92,216,230,.35)}

/* Callout --------------------------------------------------------------- */
.callout{
  background:linear-gradient(180deg,rgba(201,162,39,.07),rgba(201,162,39,.02));
  border:1px solid var(--gold-soft);border-left:2px solid var(--gold);
  border-radius:var(--radius);padding:24px 28px;margin:32px 0 0;color:var(--ink-dim);font-size:15.5px;
}
.callout strong{color:var(--gold)}

.note{
  border:1px solid var(--line);border-left:2px solid var(--cyan);border-radius:var(--radius);
  background:rgba(92,216,230,.04);padding:22px 26px;margin:28px 0 0;color:var(--muted);font-size:15px;
}

/* Contact --------------------------------------------------------------- */
.contact-box{
  border:1px solid var(--line-strong);border-radius:var(--radius);padding:46px;
  background:linear-gradient(135deg,var(--panel-2),var(--panel));
  display:flex;justify-content:space-between;align-items:center;gap:34px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.contact-box::after{
  content:"";position:absolute;right:-70px;top:-70px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,var(--cyan-glow),transparent 68%);pointer-events:none;
}
.contact-box p{color:var(--muted);margin:10px 0 0}
.mail{font-family:var(--mono);font-size:16px;letter-spacing:.04em;color:var(--cyan)}

/* Footer ---------------------------------------------------------------- */
footer{border-top:1px solid var(--line);padding:46px 0 56px;color:var(--faint);font-size:13.5px;
  background:rgba(6,9,12,.7)}
.foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:18px}
.foot-links a{color:var(--muted);margin-right:22px;font-family:var(--mono);font-size:12px;
  letter-spacing:.08em;text-transform:uppercase}
.foot-links a:hover{color:var(--cyan)}
.foot-motto{font-family:var(--serif);font-style:italic;color:var(--gold);opacity:.85}

/* Responsive ------------------------------------------------------------ */
@media(max-width:940px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .reactor{order:-1}
  .reactor svg{max-width:230px}
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr;gap:34px}
  .stack{grid-template-columns:1fr}
  .stack div{border-right:none}
  .stack div:nth-last-child(2){border-bottom:1px solid var(--line)}
}
@media(max-width:620px){
  .wrap{padding:0 20px}
  .hero{padding:70px 0 62px}
  section{padding:66px 0}
  nav{height:auto;padding:16px 0;flex-direction:column;align-items:flex-start;gap:14px}
  .nav-links a{padding:7px 10px;font-size:12.5px}
  .contact-box{padding:32px}
  .readout div{flex:1 1 100%;border-right:none;border-bottom:1px solid var(--line)}
  .readout div:last-child{border-bottom:none}
}