@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Instrument+Serif:ital@0;1&display=swap');

:root{
  --bg:#04101f;
  --panel:#071a2c;
  --panel-soft:rgba(9,34,58,.72);
  --text:#effbff;
  --muted:#9db6c9;
  --line:rgba(122,226,255,.18);
  --accent:#00bfff;
  --accent-2:#4b6cff;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  min-height:100vh;
  font-family:'Inter',system-ui,sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at 78% 8%,rgba(0,191,255,.22),transparent 28%),
    radial-gradient(circle at 12% 24%,rgba(75,108,255,.16),transparent 32%),
    linear-gradient(145deg,#03101f,#071a2c 48%,#04101f);
  line-height:1.65;
  overflow-x:hidden;
}

a{color:inherit;text-decoration:none}
.font-display,h1,h2,h3{font-family:'Instrument Serif',Georgia,serif;font-weight:400;letter-spacing:-.02em;line-height:1}

.detail-shell{position:relative;isolation:isolate}
.detail-shell::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    linear-gradient(rgba(122,226,255,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(122,226,255,.055) 1px,transparent 1px);
  background-size:84px 84px;
  mask-image:radial-gradient(ellipse at center,#000 20%,transparent 72%);
}

.detail-nav{
  position:sticky;
  top:0;
  z-index:10;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding:1rem clamp(1.25rem,4vw,4rem);
  background:rgba(4,16,31,.72);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}

.brand{font-family:'Instrument Serif',serif;font-size:1.45rem}
.accent{color:var(--accent)}
.nav-actions{display:flex;gap:.75rem;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:2.45rem;
  padding:.65rem 1rem;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--muted);
  background:rgba(239,251,255,.04);
  transition:transform .25s ease,border-color .25s ease,color .25s ease,background .25s ease;
}
.pill:hover{transform:translateY(-2px);border-color:rgba(0,191,255,.45);color:var(--text);background:rgba(0,191,255,.08)}
.pill.primary{color:#04101f;background:linear-gradient(135deg,var(--accent),#78f7ff);border-color:transparent;box-shadow:0 18px 52px rgba(0,191,255,.24)}
.theme-toggle{display:inline-flex;align-items:center;gap:.45rem;min-height:2.45rem;padding:.25rem .75rem .25rem .35rem;border:1px solid var(--line);border-radius:999px;background:rgba(239,251,255,.04);color:var(--muted);font:600 .68rem/1 'Inter',system-ui,sans-serif;letter-spacing:.08em;text-transform:uppercase;cursor:pointer;transition:transform .25s ease,border-color .25s ease,color .25s ease,background .25s ease;white-space:nowrap}
.theme-toggle:hover{transform:translateY(-2px);border-color:rgba(0,191,255,.45);color:var(--text);background:rgba(0,191,255,.08)}
.theme-toggle-orb{width:1.35rem;height:1.35rem;border-radius:999px;background:linear-gradient(135deg,#effbff 45%,var(--accent) 46%);box-shadow:0 0 20px rgba(0,191,255,.35);transition:background .25s,box-shadow .25s,transform .25s}
.theme-toggle[aria-pressed="true"] .theme-toggle-orb{background:radial-gradient(circle at 68% 32%,#effbff 0 18%,transparent 19%),linear-gradient(135deg,var(--accent),var(--accent-2));box-shadow:0 0 26px rgba(0,191,255,.52);transform:rotate(-18deg)}
@media(max-width:680px){.theme-toggle{padding:.25rem}.theme-toggle-label{display:none}}

.detail-hero{
  min-height:72vh;
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(18rem,.65fr);
  gap:clamp(2rem,6vw,6rem);
  align-items:end;
  max-width:84rem;
  margin:0 auto;
  padding:clamp(6rem,10vw,9rem) clamp(1.25rem,4vw,4rem) clamp(4rem,8vw,7rem);
}

.eyebrow{
  display:flex;
  align-items:center;
  gap:.8rem;
  color:var(--muted);
  font-size:.75rem;
  text-transform:uppercase;
  letter-spacing:.24em;
  margin-bottom:1.5rem;
}
.eyebrow::before{content:"";width:2.5rem;height:1px;background:var(--accent)}
h1{font-size:clamp(4rem,10vw,9.5rem);max-width:11ch}
.lead{max-width:42rem;margin-top:2rem;color:#c7dce8;font-size:clamp(1.05rem,1.6vw,1.35rem)}

.hero-card{
  align-self:center;
  padding:1.25rem;
  border:1px solid var(--line);
  background:linear-gradient(145deg,rgba(239,251,255,.08),rgba(0,191,255,.04));
  box-shadow:0 40px 120px rgba(0,191,255,.14);
}
.metric{padding:1.5rem;border-bottom:1px solid var(--line)}
.metric:last-child{border-bottom:0}
.metric strong{display:block;font-family:'Instrument Serif',serif;font-size:clamp(2.6rem,5vw,4.5rem);font-weight:400;color:var(--accent)}
.metric span{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.16em}

.content{max-width:84rem;margin:0 auto;padding:0 clamp(1.25rem,4vw,4rem) 6rem}
.doc-grid{display:grid;grid-template-columns:minmax(0,.72fr) minmax(0,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.doc-panel{background:rgba(4,16,31,.78);padding:clamp(1.5rem,4vw,3rem)}
.doc-panel.light{background:rgba(239,251,255,.045)}
.doc-panel h2{font-size:clamp(2.35rem,5vw,4.4rem);margin-bottom:1.25rem}
.doc-panel h3{font-size:clamp(1.7rem,3vw,2.4rem);margin-bottom:.75rem}
.doc-panel p{color:var(--muted);max-width:46rem}
.list{list-style:none;margin-top:1.5rem;display:grid;gap:.85rem}
.list li{display:flex;gap:.75rem;color:#d6e9f2}
.list li::before{content:"✦";color:var(--accent);margin-top:.05rem}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:1px;background:var(--line);border-left:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{background:rgba(4,16,31,.82);padding:clamp(1.25rem,3vw,2rem)}
.step .num{font-family:'Instrument Serif',serif;color:var(--accent);font-size:3rem;margin-bottom:1rem}
.step p{color:var(--muted);font-size:.95rem}

.cta-band{
  margin-top:clamp(3rem,6vw,5rem);
  padding:clamp(2rem,5vw,4rem);
  background:linear-gradient(135deg,rgba(0,191,255,.13),rgba(75,108,255,.08));
  border:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:2rem;
  align-items:center;
}
.cta-band h2{font-size:clamp(2.4rem,5vw,4.8rem)}
.cta-band p{color:var(--muted);margin-top:.75rem;max-width:38rem}

.faq-block{margin-top:clamp(3rem,6vw,5rem);display:grid;grid-template-columns:minmax(0,.42fr) minmax(0,.78fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.faq-block .faq-copy,.faq-block .faq-list{background:rgba(4,16,31,.82);padding:clamp(1.4rem,4vw,3rem)}
.faq-block .faq-copy h2{font-size:clamp(2.6rem,5vw,5rem);margin-bottom:1rem}
.faq-block .faq-copy p{color:var(--muted)}
.faq-list{display:grid;gap:.85rem}
.faq-item{border:1px solid rgba(122,226,255,.2);background:rgba(239,251,255,.04);overflow:hidden}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;border:0;background:transparent;color:var(--text);font:inherit;text-align:left;cursor:pointer;padding:1rem 1.1rem}
.faq-question span{font-family:'Instrument Serif',Georgia,serif;font-size:clamp(1.45rem,2.4vw,2rem);line-height:1.05}
.faq-icon{flex:0 0 2rem;width:2rem;height:2rem;border-radius:999px;border:1px solid var(--line);display:grid;place-items:center;color:var(--accent);transition:transform .28s ease,background .28s ease}
.faq-icon::before{content:"+";font-size:1.3rem;line-height:1}
.faq-question[aria-expanded="true"] .faq-icon{transform:rotate(45deg);background:rgba(0,191,255,.1)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .42s cubic-bezier(.2,.8,.2,1)}
.faq-answer-inner{padding:0 1.1rem 1.1rem;color:var(--muted);line-height:1.7}
.faq-question:focus-visible{outline:2px solid rgba(0,191,255,.55);outline-offset:-2px}

@media(max-width:900px){
  .detail-hero,.doc-grid,.steps,.faq-block{grid-template-columns:1fr}
  .detail-hero{min-height:auto;align-items:start}
  .hero-card{display:grid;grid-template-columns:repeat(2,1fr)}
  .metric{border-bottom:0;border-right:1px solid var(--line)}
  .metric:last-child{border-right:0}
  .cta-band{display:block}
  .cta-band .nav-actions{justify-content:flex-start;margin-top:1.5rem}
}

@media(max-width:560px){
  .detail-nav{align-items:flex-start;flex-direction:column}
  .nav-actions{justify-content:flex-start}
  .hero-card{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line)}
  h1{font-size:clamp(3.2rem,18vw,5rem)}
}

/* Magnetic buttons */
.magnetic-button{transform:translate3d(var(--magnet-x,0),var(--magnet-y,0),0) perspective(600px) rotateX(var(--magnet-rx,0deg)) rotateY(var(--magnet-ry,0deg));transition:transform .28s cubic-bezier(.16,1,.3,1),box-shadow .25s ease,background .25s ease}
@media(hover:none),(pointer:coarse){.magnetic-button{transform:none!important}}
@media(prefers-reduced-motion:reduce){.magnetic-button{transform:none!important}.faq-answer{transition:none}}