/* ============================================================
   QPUWAFERS.COM — Disclosure Dossier
   Design system: "Base Temperature" — the visual language of a
   dilution refrigerator's cooling stages, from 300K down to the
   millikelvin regime where qubits hold coherence. Diligence is
   framed as the same process: cool the noise, isolate the signal.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,500&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --void:      #080B10;
  --stage-1:   #10151C;
  --stage-2:   #171F29;
  --stage-3:   #1F2A36;
  --frost:     #E9EEF2;
  --muted:     #8496A6;
  --muted-dim: #5A6B7A;
  --cryo:      #5FD8E8;
  --cryo-dim:  #2A6B76;
  --copper:    #D08A5C;
  --copper-dim:#6B4A33;
  --rule:      #202B37;
  --danger:    #E8785F;

  --display: 'Newsreader', Georgia, serif;
  --body: 'Inter', -apple-system, sans-serif;
  --mono: 'IBM Plex Mono', 'SF Mono', monospace;
}

*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--void);
  color:var(--frost);
  font-family:var(--body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;}
img{max-width:100%; display:block;}

.wrap{max-width:1080px; margin:0 auto; padding:0 32px;}

::selection{background:var(--cryo-dim); color:var(--frost);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}

/* ---------- Nav ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(8,11,16,0.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.nav .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height:64px;
}
.nav-mark{
  font-family:var(--mono); font-size:14px; letter-spacing:0.02em;
  color:var(--frost); text-decoration:none; font-weight:600;
  display:flex; align-items:center; gap:8px;
}
.nav-mark .dot{
  width:8px; height:8px; border-radius:50%;
  background:var(--cryo);
  box-shadow:0 0 8px 1px var(--cryo);
}
.nav-links{display:flex; gap:28px; list-style:none;}
.nav-links a{
  font-size:13px; text-decoration:none; color:var(--muted);
  font-family:var(--mono); letter-spacing:0.03em;
  transition:color 0.15s ease;
}
.nav-links a:hover, .nav-links a.active{color:var(--cryo);}
.nav-toggle{display:none;}

@media (max-width:760px){
  .nav-links{
    position:absolute; top:64px; left:0; right:0;
    flex-direction:column; gap:0;
    background:var(--stage-1); border-bottom:1px solid var(--rule);
    max-height:0; overflow:hidden; transition:max-height 0.25s ease;
  }
  .nav-links.open{max-height:400px;}
  .nav-links a{display:block; padding:16px 32px; border-bottom:1px solid var(--rule);}
  .nav-toggle{
    display:block; background:none; border:1px solid var(--rule);
    color:var(--frost); width:36px; height:32px; border-radius:4px; cursor:pointer;
  }
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{
  font-family:var(--mono); font-size:12px; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--cryo);
  display:flex; align-items:center; gap:10px; margin-bottom:18px;
}
.eyebrow::before{
  content:''; width:20px; height:1px; background:var(--cryo-dim);
}

/* ---------- Hero ---------- */
.hero{
  padding:96px 0 80px;
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--rule);
}
.hero-grid{
  display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:center;
}
@media (max-width:900px){ .hero-grid{grid-template-columns:1fr;} }

.hero h1{
  font-family:var(--display); font-weight:500; font-size:clamp(2.3rem,4.6vw,3.6rem);
  line-height:1.08; letter-spacing:-0.01em; color:var(--frost);
}
.hero h1 em{color:var(--cryo); font-style:italic;}
.hero p.lede{
  margin-top:22px; font-size:1.1rem; color:var(--muted); max-width:52ch;
}
.hero-cta{display:flex; gap:14px; margin-top:34px; flex-wrap:wrap;}

.btn{
  font-family:var(--mono); font-size:13px; letter-spacing:0.03em;
  padding:13px 22px; border-radius:3px; text-decoration:none;
  display:inline-flex; align-items:center; gap:8px;
  transition:transform 0.15s ease, background 0.15s ease;
}
.btn-primary{background:var(--cryo); color:var(--void); font-weight:600;}
.btn-primary:hover{transform:translateY(-1px); background:#7de3f0;}
.btn-ghost{border:1px solid var(--rule); color:var(--frost);}
.btn-ghost:hover{border-color:var(--cryo-dim); color:var(--cryo);}

/* ---------- Cryostat diagram (signature element) ---------- */
.cryostat{
  position:relative; width:100%; aspect-ratio:1/1; max-width:420px; margin:0 auto;
}
.cryostat svg{width:100%; height:100%;}
.stage-ring{fill:none; stroke-width:1;}
.stage-label{font-family:var(--mono); font-size:9px; fill:var(--muted-dim); letter-spacing:0.05em;}
.stage-temp{font-family:var(--mono); font-size:9px; fill:var(--muted);}
.core-glow{filter:drop-shadow(0 0 14px rgba(95,216,232,0.55));}

@keyframes pulse{
  0%,100%{opacity:0.55;}
  50%{opacity:1;}
}
.pulse{animation:pulse 3.2s ease-in-out infinite;}

/* ---------- Sections ---------- */
section{padding:80px 0;}
.section-tight{padding:56px 0;}
h2{
  font-family:var(--display); font-weight:500; font-size:clamp(1.6rem,2.8vw,2.2rem);
  color:var(--frost); letter-spacing:-0.01em; margin-bottom:14px;
}
h3{
  font-family:var(--body); font-weight:600; font-size:1.05rem; color:var(--frost);
  margin-bottom:8px;
}
.section-sub{color:var(--muted); max-width:64ch; margin-bottom:44px; font-size:1.02rem;}

.divider{border:none; border-top:1px solid var(--rule); margin:0;}

/* ---------- Grid / cards ---------- */
.grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
.grid-2{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
@media (max-width:800px){ .grid-3, .grid-2{grid-template-columns:1fr;} }

.card{
  background:var(--stage-1); border:1px solid var(--rule); border-radius:6px;
  padding:26px;
}
.card .stat{
  font-family:var(--mono); font-size:1.9rem; color:var(--cryo); font-weight:600;
  display:block; margin-bottom:6px;
}
.card p{color:var(--muted); font-size:0.94rem;}
.card .label{
  font-family:var(--mono); font-size:11px; color:var(--muted-dim);
  text-transform:uppercase; letter-spacing:0.08em; margin-bottom:10px; display:block;
}

/* ---------- Table ---------- */
table{width:100%; border-collapse:collapse; font-size:0.92rem;}
th{
  text-align:left; font-family:var(--mono); font-size:11px; text-transform:uppercase;
  letter-spacing:0.06em; color:var(--muted-dim); font-weight:500;
  padding:10px 14px; border-bottom:1px solid var(--rule);
}
td{padding:14px; border-bottom:1px solid var(--rule); color:var(--muted); vertical-align:top;}
tr.highlight td{color:var(--frost); background:rgba(95,216,232,0.04);}
td.mono, th.mono{font-family:var(--mono);}
td strong{color:var(--frost);}

/* ---------- Timeline (policy/catalyst) ---------- */
.timeline{border-left:1px solid var(--rule); margin-left:6px; padding-left:32px;}
.tl-item{position:relative; padding-bottom:36px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:''; position:absolute; left:-37px; top:4px;
  width:9px; height:9px; border-radius:50%; background:var(--void);
  border:2px solid var(--cryo);
}
.tl-date{font-family:var(--mono); font-size:12px; color:var(--cryo); letter-spacing:0.03em;}
.tl-item h3{margin-top:6px;}
.tl-item p{color:var(--muted);}

/* ---------- Source list ---------- */
.sources{list-style:none;}
.sources li{
  padding:14px 0; border-bottom:1px solid var(--rule);
  font-size:0.9rem; color:var(--muted); display:flex; gap:14px;
}
.sources li .src-tag{
  font-family:var(--mono); font-size:10px; color:var(--muted-dim);
  border:1px solid var(--rule); padding:2px 7px; border-radius:3px; height:fit-content;
  white-space:nowrap; margin-top:2px;
}

/* ---------- Callout / disclosure box ---------- */
.callout{
  border-left:2px solid var(--copper); background:var(--stage-1);
  padding:20px 24px; border-radius:0 6px 6px 0;
}
.callout .label{color:var(--copper); font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:0.08em; display:block; margin-bottom:8px;}
.callout p{color:var(--muted); font-size:0.94rem;}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--rule); padding:48px 0; background:var(--stage-1);}
.footer-grid{display:flex; justify-content:space-between; align-items:flex-start; gap:32px; flex-wrap:wrap;}
footer .fmark{font-family:var(--mono); font-size:13px; color:var(--frost); margin-bottom:8px;}
footer .fnote{color:var(--muted-dim); font-size:0.85rem; max-width:46ch;}
footer .flinks{display:flex; gap:22px; list-style:none;}
footer .flinks a{font-family:var(--mono); font-size:12.5px; color:var(--muted); text-decoration:none;}
footer .flinks a:hover{color:var(--cryo);}
.legal{margin-top:32px; padding-top:24px; border-top:1px solid var(--rule); font-size:0.8rem; color:var(--muted-dim);}

/* ---------- misc ---------- */
.tag{
  font-family:var(--mono); font-size:11px; letter-spacing:0.04em;
  border:1px solid var(--rule); color:var(--muted); padding:4px 10px;
  border-radius:20px; display:inline-block;
}
.stack{display:flex; gap:10px; flex-wrap:wrap; margin-top:18px;}
.kicker-nums{font-family:var(--mono); color:var(--muted-dim); font-size:0.85rem;}