/* Orion Sage — Web Concepts, Direction B (The Instrument)
   Tokens: Field #0B1821 · Cream #F2EBE0 · Gold #C4893B · Muted #8A8478 · Border #3A5A6A
   Type: Georgia (display) · Helvetica Neue (text) · Courier New (data)
   No inline styles — strict CSP. */

:root{
  --field:#0B1821;
  --field-alt:#0C1C26;
  --cream:#F2EBE0;
  --gold:#C4893B;
  --gold-hi:#D49A4F;
  --muted:#8A8478;
  --border:#3A5A6A;
  --paper:#F7F4F0;
  --ink:#0B1821;

  --serif:Georgia,"Times New Roman",serif;
  --sans:"Helvetica Neue",Helvetica,Arial,sans-serif;
  --mono:"Courier New",Courier,monospace;

  --pad:48px;
  --wrap:960px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--field);color:var(--cream);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
p{margin:0}
h1,h2,h3{font-family:var(--serif);font-weight:400;margin:0}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- header ---------- */
.site-header{
  display:flex;align-items:center;justify-content:space-between;gap:34px;
  padding:22px var(--pad);
  border-bottom:1px solid rgba(58,90,106,.4);
  background:var(--field);
  position:sticky;top:0;z-index:30;
}
.wordmark{
  font-size:14px;font-weight:700;letter-spacing:.22em;color:var(--cream);
  white-space:nowrap;
}
.site-nav{display:flex;align-items:center;gap:34px;margin-left:auto}
.site-nav a{font-size:13px;color:rgba(242,235,224,.82);transition:color .2s}
.site-nav a:hover{color:var(--cream)}

/* ---------- buttons ---------- */
.cta{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  padding:16px 30px;border-radius:2px;border:1px solid var(--gold);
  transition:background .2s,color .2s,border-color .2s;
  cursor:pointer;
}
.cta-solid{background:var(--gold);color:var(--field)}
.cta-solid:hover{background:var(--gold-hi);border-color:var(--gold-hi)}
.cta-outline{background:transparent;color:var(--gold)}
.cta-outline:hover{background:rgba(196,137,59,.10)}
.cta-small{font-size:11px;padding:11px 20px}

/* ---------- shared ---------- */
.eyebrow{
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold);font-weight:700;margin:0;
}
.rule{width:40px;height:1px;background:var(--gold)}
.band{padding:100px var(--pad)}
.band-alt{background:var(--field-alt);border-top:1px solid rgba(58,90,106,.3)}
.wrap{max-width:var(--wrap);margin:0 auto}
.wrap-narrow{max-width:520px;margin:0 auto}
.section-head{text-align:center;margin-bottom:56px}
.section-head h2{font-size:40px;line-height:1.15;margin:14px 0 0;color:var(--cream)}
.section-head .rule{margin:22px auto 0}
.section-lede{
  margin:26px auto 0;max-width:560px;
  font-size:15px;line-height:1.7;color:rgba(242,235,224,.62);
}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;text-align:center;
  padding:128px var(--pad) 132px;
}
.hero-field{
  position:absolute;left:50%;top:50%;width:620px;height:620px;
  margin:-310px 0 0 -310px;opacity:.5;pointer-events:none;
}
.hero-copy{position:relative;max-width:760px;margin:0 auto}
.hero h1{
  font-size:58px;line-height:1.08;letter-spacing:-.01em;margin:24px 0 0;
  text-wrap:balance;
}
.hero .rule{margin:32px auto}
.hero-lede{
  font-size:18px;line-height:1.7;color:rgba(242,235,224,.75);
  max-width:500px;margin:0 auto 38px;
}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- diagrams ---------- */
.diagram{width:100%;height:auto;display:block}
.spin-slow{animation:spin 160s linear infinite;transform-box:view-box;transform-origin:center}
.spin-rev{animation:spinrev 110s linear infinite;transform-box:view-box;transform-origin:center}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes spinrev{to{transform:rotate(-360deg)}}

/* ---------- instrument ---------- */
.instrument{position:relative;height:560px;margin:0 auto;max-width:960px}
.diagram-fw{
  position:absolute;left:50%;top:50%;width:520px;height:520px;
  margin:-260px 0 0 -260px;opacity:.85;
}
.core{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  text-align:center;width:190px;
}
.core-label{
  font-size:9px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold);font-family:var(--mono);
}
.core-name{font-family:var(--serif);font-size:18px;color:var(--cream);margin-top:6px;line-height:1.25}
.core-desc{font-size:11px;color:rgba(242,235,224,.55);margin-top:6px;line-height:1.4}

.node-card{
  position:absolute;width:230px;text-align:center;
  background:rgba(11,24,33,.85);border:1px solid var(--border);border-radius:3px;
  padding:16px 18px;
  backdrop-filter:blur(2px);
}
.node-card h3{font-family:var(--serif);font-size:17px;color:var(--cream);line-height:1.25}
.node-card .currency{
  font-size:12px;color:var(--gold);font-family:var(--mono);margin:5px 0 7px;
}
.node-card .node-desc{font-size:12px;color:rgba(242,235,224,.6);line-height:1.5}

.node-top{top:6px;left:50%;transform:translateX(-50%)}
.node-right{right:0;top:50%;transform:translateY(-50%)}
.node-bottom{bottom:6px;left:50%;transform:translateX(-50%)}
.node-left{left:0;top:50%;transform:translateY(-50%)}

/* ---------- problems ---------- */
.problems{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  margin-top:64px;background:rgba(58,90,106,.35);
  border:1px solid rgba(58,90,106,.35);
}
.problem{background:var(--field-alt);padding:28px 26px}
.problem .num{
  font-family:var(--mono);font-size:9px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--gold);margin-bottom:14px;
}
.problem h3{font-size:20px;margin-bottom:10px}
.problem p:last-child{font-size:13.5px;line-height:1.6;color:rgba(242,235,224,.62)}

/* ---------- volumes ---------- */
.volumes{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.volume{
  border-top:1px solid rgba(58,90,106,.7);padding-top:18px;
  display:flex;flex-direction:column;min-height:190px;
}
.volume .vol{
  font-size:9px;letter-spacing:.16em;color:var(--muted);font-family:var(--mono);
}
.volume h3{font-size:21px;line-height:1.2;margin:8px 0 0;color:var(--cream)}
.volume .status{
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);font-weight:700;font-family:var(--mono);margin-top:14px;
}
.volume.is-live{border-top-color:var(--gold)}
.volume.is-live .status{color:var(--gold)}
.bar{height:1px;background:rgba(58,90,106,.7);margin-top:12px;overflow:hidden}
.bar-60{display:block;height:100%;width:60%;background:var(--gold);opacity:.8}

/* ---------- buy ---------- */
.buy{
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  margin-top:56px;padding:34px;
  border:1px solid rgba(58,90,106,.5);
  background:rgba(12,28,38,.55);
}
.buy h3{font-size:22px;margin-bottom:8px}
.buy p{font-size:14px;color:rgba(242,235,224,.62);max-width:460px}
.buy-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- author (light band) ---------- */
.band-light{background:var(--paper);color:var(--ink)}
.wrap-author{
  display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center;
}
.author .eyebrow{color:var(--gold)}
.author h2{font-size:36px;color:var(--ink);margin:14px 0 0}
.author .rule{margin:20px 0}
.author-copy p{font-size:16px;line-height:1.75;color:rgba(11,24,33,.8)}
.author-copy p + p{margin-top:16px}
.author-media{margin:0}
.author-media img{aspect-ratio:4/5;object-fit:cover;width:100%;filter:saturate(.8) contrast(1.02)}

/* ---------- subscribe ---------- */
.band-subscribe{background:var(--field);padding:80px var(--pad) 84px;text-align:center;border-top:1px solid rgba(58,90,106,.3)}
.subscribe h2{font-size:30px;color:var(--cream)}
.subscribe > p{font-size:14px;color:rgba(242,235,224,.6);margin:10px auto 24px;max-width:380px}
.subscribe form{display:flex;gap:10px;max-width:420px;margin:0 auto}
.subscribe input{
  flex:1;min-width:0;background:transparent;border:1px solid var(--border);
  border-radius:2px;padding:13px 15px;color:var(--cream);
  font-size:13px;font-family:var(--sans);
}
.subscribe input::placeholder{color:rgba(138,132,120,.85)}
.subscribe input:focus{outline:none;border-color:var(--gold)}
.subscribe .form-note{
  font-family:var(--mono);font-size:11px;color:var(--gold);
  min-height:16px;margin-top:14px;
}

/* ---------- footer ---------- */
.site-footer{padding:40px var(--pad);border-top:1px solid rgba(58,90,106,.3)}
.wrap-footer{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.wordmark-sm{font-size:14px;font-weight:700;letter-spacing:.22em;color:var(--cream)}
.copyright{font-size:11px;color:rgba(242,235,224,.45);font-family:var(--mono)}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  :root{--pad:32px}
  .hero{padding:96px var(--pad) 104px}
  .hero h1{font-size:46px}
  .instrument{height:auto;display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .diagram-fw,.core{display:none}
  .node-card{position:static;width:auto;transform:none}
  .node-card.node-top,.node-card.node-right,
  .node-card.node-bottom,.node-card.node-left{position:static;transform:none}
  .volumes{grid-template-columns:repeat(2,1fr);gap:26px}
  .wrap-author{grid-template-columns:1fr;gap:34px}
  .author-media{order:-1;max-width:360px}
}
@media (max-width:720px){
  .site-header{padding:16px var(--pad);gap:16px}
  .site-nav{display:none}
  .hero{padding:76px var(--pad) 84px}
  .hero h1{font-size:36px;line-height:1.12}
  .hero-lede{font-size:16px}
  .hero-field{width:420px;height:420px;margin:-210px 0 0 -210px;opacity:.35}
  .band{padding:70px var(--pad)}
  .section-head h2{font-size:30px}
  .problems{grid-template-columns:1fr}
  .volumes{grid-template-columns:1fr}
  .volume{min-height:0}
  .buy{flex-direction:column;align-items:flex-start;padding:26px}
  .subscribe form{flex-direction:column}
  .subscribe .cta{width:100%}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .spin-slow,.spin-rev{animation:none}
  *{transition:none!important}
}