/* ============================================================
   Case study template — shared layout for ALL case study pages.
   Edit this file (or case-study.js) once and every /case-* page updates.
   ============================================================ */
.cs-page{--csa:var(--blue)}
.cs-hero{padding:120px 0 40px}
.cs-back{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted);text-decoration:none;margin-bottom:26px;transition:color .15s}
.cs-back:hover{color:var(--text)}
.cs-tag{font-family:var(--mono);font-size:12px;letter-spacing:1.5px;text-transform:uppercase;color:var(--csa)}
.cs-title{font-size:clamp(24px,5vw,54px);line-height:1.05;letter-spacing:-1.5px;margin:14px 0 0;font-weight:600;white-space:nowrap}
.cs-lede{font-size:clamp(16px,2.2vw,20px);line-height:1.6;color:var(--muted2);max-width:960px;margin:20px 0 0}
.cs-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:20px;margin:44px 0 0;padding:28px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.cs-metric strong{display:block;font-size:clamp(24px,3.4vw,34px);letter-spacing:-1px;color:var(--text)}
.cs-metric span{display:block;font-family:var(--mono);font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);margin-top:6px}
.cs-figure{margin:40px 0 0;border-radius:18px;overflow:hidden;border:1px solid var(--border2);background:#141a2b;aspect-ratio:16/9}
.cs-figure img{width:100%;height:100%;object-fit:cover;display:block}
.cs-section{padding:64px 0}
.cs-section-head{max-width:640px;margin-bottom:40px}
.cs-eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:1.8px;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:10px}
.cs-eyebrow::before{content:"";width:24px;height:1px;background:var(--csa)}
.cs-section h2{font-size:clamp(26px,3.6vw,38px);letter-spacing:-1px;margin:14px 0 0;font-weight:600}
.cs-body{max-width:880px;color:var(--muted2);line-height:1.8;font-size:17px}
.cs-body strong{color:var(--text)}
.cs-ps{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:8px}
.cs-ps-card{background:var(--surface);border:1px solid var(--border2);border-radius:14px;padding:24px}
.cs-ps-label{font-family:var(--mono);font-size:11px;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:10px}
.cs-ps-label.is-problem{color:#fb4d3d}
.cs-ps-label.is-solution{color:#03cea4}
.cs-ps-card p{margin:0;color:var(--muted2);line-height:1.7;font-size:15px}
.cs-did{display:flex;flex-direction:column;gap:18px}
.cs-block{display:grid;grid-template-columns:64px 1fr;gap:24px;align-items:start;padding:28px;border:1px solid var(--border2);border-radius:16px;background:var(--surface);transition:border-color .2s,transform .2s}
.cs-block:hover{border-color:var(--csa);transform:translateY(-2px)}
.cs-num{font-family:var(--mono);font-size:13px;color:var(--csa);border:1px solid var(--csa);border-radius:10px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:color-mix(in srgb,var(--csa) 8%,transparent)}
.cs-block h3{font-size:19px;margin:0 0 8px;font-weight:600}
.cs-block p{margin:0;font-size:15px;line-height:1.65;color:var(--muted2)}
.cs-meta-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:36px 0 0;border-top:1px solid var(--border)}
.cs-meta-label{font-family:var(--mono);font-size:10px;letter-spacing:1.6px;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.cs-chips{display:flex;flex-wrap:wrap;gap:8px}
.cs-chip{font-family:var(--mono);font-size:12px;padding:6px 12px;border-radius:8px;border:1px solid var(--border2);color:var(--muted2);background:var(--surface2)}
.cs-cta{text-align:center;padding:72px 0 96px}
.cs-cta h2{font-size:clamp(26px,4vw,40px);letter-spacing:-1px;margin:0 0 14px;font-weight:600}
.cs-cta p{color:var(--muted2);max-width:520px;margin:0 auto 28px;line-height:1.6}
@media(max-width:720px){
  .cs-meta-grid{grid-template-columns:1fr}
  .cs-block{grid-template-columns:1fr;gap:14px}
  .cs-ps{grid-template-columns:1fr}
}