:root{
  --bg:#0E1116;
  --bg-2:#0B0E12;
  --surface:#151B23;
  --surface-2:#1A2029;
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.15);
  --text:#C2CCD6;
  --text-dim:#828E9B;
  --heading:#F2F6FA;
  --accent:#F26169;
  --accent-soft:#FF858C;
  --accent-blue:#FF9A6B;
  --accent-deep:#D93F49;
  --accent-glow:rgba(242,97,105,0.18);
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --maxw:1160px;
  --pad:clamp(1.25rem,4vw,2.5rem);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.container-narrow{max-width:920px;margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.eyebrow{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);font-weight:500}
h1,h2,h3{font-family:var(--font-display);color:var(--heading);line-height:1.15;font-weight:600}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s ease,border-color .3s ease,backdrop-filter .3s ease;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(11,14,18,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.65rem;font-family:var(--font-display);font-weight:600;color:var(--heading);font-size:1.02rem;letter-spacing:-.01em}
.brand-mark{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;font-family:var(--font-mono);font-size:.8rem;font-weight:600;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-blue))}
.nav-links{display:flex;align-items:center;gap:1.8rem}
.nav-links a.navlink{font-size:.9rem;color:var(--text-dim);transition:color .2s ease}
.nav-links a.navlink:hover{color:var(--heading)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;color:var(--heading);padding:.4rem}

.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-body);font-weight:500;font-size:.9rem;padding:.7rem 1.2rem;border-radius:10px;cursor:pointer;transition:transform .18s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .2s ease;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--accent-deep);color:#fff;font-weight:600}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 26px -8px var(--accent-glow),0 0 0 1px rgba(242,97,105,.5);background:var(--accent)}
.btn-ghost{background:transparent;color:var(--heading);border:1px solid var(--border-strong)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--accent-soft)}
.btn-sm{padding:.55rem 1rem;font-size:.85rem}

/* BACK LINK */
.backlink{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-dim);margin-bottom:1.6rem;transition:color .2s ease,gap .2s ease}
.backlink:hover{color:var(--accent-soft);gap:.75rem}
.backlink svg{color:var(--accent)}

/* CASE HERO */
.case-hero{position:relative;padding-top:clamp(7.5rem,15vh,10rem);padding-bottom:clamp(2.5rem,6vw,4rem);overflow:hidden}
.case-hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.case-hero-bg::before{content:"";position:absolute;top:-25%;left:-5%;width:55vw;height:55vw;max-width:640px;max-height:640px;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 62%)}
.case-hero-grid{position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:34px 34px;-webkit-mask-image:radial-gradient(ellipse 70% 70% at 20% 10%,#000 0%,transparent 72%);mask-image:radial-gradient(ellipse 70% 70% at 20% 10%,#000 0%,transparent 72%);opacity:.6}
.case-hero-inner{position:relative;z-index:1}
.case-prg-badge{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.16em;color:var(--accent);font-weight:600;margin-bottom:1rem;display:inline-block}
.case-hero h1{font-size:clamp(2rem,4.6vw,3.3rem);letter-spacing:-.02em;margin-bottom:1rem;max-width:20ch}
.case-summary{font-size:clamp(1.02rem,1.6vw,1.2rem);color:var(--text);max-width:60ch;margin-bottom:1.6rem}
.tags{display:flex;flex-wrap:wrap;gap:.45rem;margin-bottom:2.2rem}
.tag{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;padding:.34rem .6rem;border-radius:6px;background:rgba(242,97,105,.08);border:1px solid rgba(242,97,105,.2);color:var(--accent-soft)}

.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--border);border-radius:14px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,.02),transparent)}
.case-metrics .metric{padding:1.2rem 1.25rem;border-right:1px solid var(--border)}
.case-metrics .metric:last-child{border-right:0}
.case-metrics .num{font-family:var(--font-display);font-weight:600;color:var(--heading);font-size:clamp(1.3rem,2.6vw,1.7rem);letter-spacing:-.02em;line-height:1.1}
.case-metrics .lbl{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim);margin-top:.4rem}

/* META BAR */
.meta-bar{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg-2)}
.meta-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;padding:1.4rem 0}
.meta-item .m-k{font-family:var(--font-mono);font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-dim);margin-bottom:.35rem}
.meta-item .m-v{color:var(--heading);font-size:.92rem;font-weight:500}

/* CONTENT */
.case-body{padding:clamp(3rem,7vw,5rem) 0}
.content-grid{display:grid;grid-template-columns:1fr 300px;gap:clamp(2rem,5vw,4rem);align-items:start}
.prose section{margin-bottom:2.6rem}
.prose section:last-child{margin-bottom:0}
.prose .sec-eyebrow{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:.7rem}
.prose h2{font-size:clamp(1.4rem,2.6vw,1.85rem);letter-spacing:-.01em;margin-bottom:1rem}
.prose p{color:var(--text);margin-bottom:1.1rem;max-width:64ch}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--heading);font-weight:600}

.points{list-style:none;display:flex;flex-direction:column;gap:.85rem;margin:1.2rem 0 0}
.points li{position:relative;padding-left:1.6rem;color:var(--text);max-width:62ch}
.points li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--accent);transform:rotate(45deg)}

.callout{border:1px solid var(--border);border-left:3px solid var(--accent);background:var(--surface);border-radius:10px;padding:1.3rem 1.4rem;margin:1.6rem 0}
.callout .c-k{font-family:var(--font-mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:.5rem}
.callout p{color:var(--heading);font-size:1.02rem;margin:0;max-width:60ch;font-weight:500;font-family:var(--font-display);line-height:1.4}

/* SIDEBAR */
.sidebar{position:sticky;top:92px;display:flex;flex-direction:column;gap:1rem}
.side-card{border:1px solid var(--border);border-radius:14px;background:var(--surface);padding:1.3rem 1.4rem}
.side-card h3{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);font-weight:600;margin-bottom:1rem}
.side-row{display:flex;flex-direction:column;gap:.2rem;padding:.7rem 0;border-bottom:1px solid var(--border)}
.side-row:last-child{border-bottom:0;padding-bottom:0}
.side-row:first-of-type{padding-top:0}
.side-row .k{font-family:var(--font-mono);font-size:.6rem;letter-spacing:.1em;text-transform:uppercase;color:var(--text-dim)}
.side-row .v{color:var(--heading);font-size:.9rem;font-weight:500}
.side-stack{display:flex;flex-wrap:wrap;gap:.4rem;margin-top:.3rem}
.side-stack span{font-family:var(--font-mono);font-size:.66rem;padding:.28rem .5rem;border-radius:6px;background:var(--surface-2);border:1px solid var(--border);color:var(--text)}

/* NEXT CASE */
.next-case{border-top:1px solid var(--border);background:var(--bg-2);padding:clamp(2.5rem,6vw,4rem) 0}
.next-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.next-label{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-dim);margin-bottom:.5rem}
.next-title{font-family:var(--font-display);font-weight:600;color:var(--heading);font-size:clamp(1.2rem,2.4vw,1.6rem);letter-spacing:-.01em;transition:color .2s ease}
.next-link:hover .next-title{color:var(--accent-soft)}
.next-arrow{display:inline-flex;align-items:center;gap:.5rem;color:var(--accent);font-size:.9rem}

footer{border-top:1px solid var(--border);padding:2.2rem 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.footer-inner .fnote{font-size:.82rem;color:var(--text-dim)}
.footer-inner .flinks{display:flex;gap:1.4rem}
.footer-inner .flinks a{font-size:.85rem;color:var(--text-dim);transition:color .2s ease}
.footer-inner .flinks a:hover{color:var(--accent-soft)}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}.btn,.backlink{transition:none}}

@media (max-width:860px){
  .content-grid{grid-template-columns:1fr}
  .sidebar{position:static;order:-1;flex-direction:row;flex-wrap:wrap}
  .side-card{flex:1;min-width:240px}
  .meta-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .nav-links{position:fixed;top:68px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:1.2rem;background:rgba(11,14,18,.97);backdrop-filter:blur(14px);padding:1.5rem var(--pad);border-bottom:1px solid var(--border);transform:translateY(-160%);transition:transform .3s ease}
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:block}
  .case-metrics{grid-template-columns:1fr}
  .case-metrics .metric{border-right:0;border-bottom:1px solid var(--border)}
  .case-metrics .metric:last-child{border-bottom:0}
  .meta-inner{grid-template-columns:1fr}
}