/* CASES — page-specific styles */
/* ── case studies page ─────────────────────────────── */
.nav-links a.active{color:#fff;position:relative}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  border-radius:2px;background:var(--grad)}
.hero.cases{padding:164px 0 72px}
.hero.cases .hero-in{max-width:820px}
/* filter bar */
.filterbar{position:sticky;top:0;z-index:30;background:rgba(247,248,253,.88);
  backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.filterbar .wrap{display:flex;align-items:center;justify-content:space-between;
  gap:16px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px}
.fchips{display:flex;gap:8px;flex-wrap:wrap}
.fchip{font-family:var(--display);font-weight:500;font-size:13px;color:var(--ink-soft);
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 16px;
  cursor:pointer;transition:all .2s}
.fchip:hover{color:var(--ink);transform:translateY(-1px)}
.fchip.active{color:#fff;border-color:transparent;background:var(--grad);
  box-shadow:0 6px 16px rgba(124,77,225,.28)}
.cs-count{font-family:var(--mono);font-size:12px;color:var(--ink-mute);white-space:nowrap}
/* studies grid */
.cs-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;padding-top:48px}
.cs-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;
  display:flex;flex-direction:column;transition:transform .3s,box-shadow .3s;cursor:pointer}
.cs-card:hover{transform:translateY(-5px);box-shadow:0 24px 56px rgba(46,60,120,.13)}
.cs-card.hide{display:none}
/* card accent strip */
.cs-strip{height:5px;width:100%}
/* card body */
.cs-body{padding:28px 28px 22px;flex:1;display:flex;flex-direction:column}
.cs-meta{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.cs-industry{font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;text-transform:uppercase;
  color:var(--ink-mute);border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.cs-service{font-family:var(--mono);font-size:10.5px;letter-spacing:1.2px;text-transform:uppercase;
  border-radius:999px;padding:4px 10px;color:#fff}
.cs-client{font-family:var(--display);font-weight:700;font-size:22px;letter-spacing:-.4px;
  margin-bottom:6px}
.cs-headline{font-size:15px;color:var(--ink-soft);margin-bottom:22px;line-height:1.5;flex:1}
/* stat row */
.cs-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-bottom:20px}
.cs-stat{background:#fff;padding:16px 12px;text-align:center}
.cs-stat .n{font-family:var(--display);font-weight:700;font-size:24px;letter-spacing:-.5px;
  line-height:1;margin-bottom:4px;background:var(--grad);-webkit-background-clip:text;
  -webkit-text-fill-color:transparent;background-clip:text}
.cs-stat .l{font-size:11.5px;color:var(--ink-mute);line-height:1.3}
/* card footer */
.cs-foot{display:flex;align-items:center;justify-content:space-between;
  padding:0 28px 24px}
.cs-logo-wrap{display:flex;align-items:center;gap:10px}
.cs-logo-init{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  font-family:var(--display);font-weight:700;font-size:14px;color:#fff}
.cs-client-name{font-family:var(--display);font-weight:600;font-size:13px;color:var(--ink)}
.cs-client-loc{font-size:11.5px;color:var(--ink-mute)}
.cs-open-btn{display:inline-flex;align-items:center;gap:6px;font-family:var(--display);
  font-weight:600;font-size:13px;color:var(--purple);transition:gap .2s}
.cs-card:hover .cs-open-btn{gap:10px}
/* ── study detail modal ─────────────────────────────── */
.study-overlay{position:fixed;inset:0;background:rgba(10,11,30,.6);backdrop-filter:blur(6px);
  z-index:80;display:flex;align-items:flex-start;justify-content:center;
  padding:40px 20px 20px;opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s;
  overflow-y:auto}
.study-overlay.open{opacity:1;visibility:visible}
.study-modal{background:#fff;border-radius:26px;width:100%;max-width:820px;overflow:hidden;
  transform:translateY(30px);transition:transform .4s cubic-bezier(.2,.8,.2,1)}
.study-overlay.open .study-modal{transform:translateY(0)}
.study-modal-head{padding:38px 40px 32px;position:relative}
.study-modal-strip{height:6px;width:100%;margin-bottom:30px}
.study-close{position:absolute;top:22px;right:24px;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:#fff;cursor:pointer;display:grid;place-items:center;
  font-size:20px;color:var(--ink-soft);transition:all .2s;line-height:1}
.study-close:hover{background:var(--paper);color:var(--ink)}
.study-modal-meta{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.study-modal-client{font-family:var(--display);font-weight:700;font-size:30px;letter-spacing:-.6px;
  margin-bottom:8px}
.study-modal-sub{font-size:16px;color:var(--ink-soft);max-width:600px;line-height:1.55}
/* modal stats band */
.study-stats-band{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--paper);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.study-stat{padding:24px 20px;text-align:center;border-right:1px solid var(--line)}
.study-stat:last-child{border-right:0}
.study-stat .n{font-family:var(--display);font-weight:700;font-size:30px;letter-spacing:-.6px;
  background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;line-height:1;margin-bottom:5px}
.study-stat .l{font-size:12.5px;color:var(--ink-mute)}
/* modal body */
.study-modal-body{padding:36px 40px 40px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px}
.study-section-label{font-family:var(--mono);font-size:10.5px;letter-spacing:1.8px;
  text-transform:uppercase;color:var(--purple);margin-bottom:12px}
.study-section h3{font-family:var(--display);font-weight:700;font-size:19px;letter-spacing:-.3px;
  margin-bottom:12px}
.study-section p{font-size:15px;color:var(--ink-soft);line-height:1.65;margin-bottom:16px}
.study-section p:last-child{margin-bottom:0}
.study-services-used{display:flex;flex-wrap:wrap;gap:7px;margin-top:4px}
.study-services-used span{font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);
  background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:5px 11px}
/* timeline */
.study-timeline{display:flex;flex-direction:column;gap:0}
.tl-item{display:flex;gap:16px;position:relative}
.tl-item:not(:last-child)::after{content:"";position:absolute;left:15px;top:34px;
  bottom:-10px;width:1px;background:var(--line)}
.tl-dot{flex:0 0 auto;width:31px;height:31px;border-radius:50%;border:2px solid var(--line);
  background:#fff;display:grid;place-items:center;font-family:var(--display);font-weight:700;
  font-size:12px;color:var(--purple);margin-top:2px}
.tl-content{padding-bottom:24px}
.tl-month{font-family:var(--mono);font-size:10.5px;letter-spacing:1px;color:var(--ink-mute);
  text-transform:uppercase;margin-bottom:4px}
.tl-title{font-family:var(--display);font-weight:600;font-size:14.5px;color:var(--ink);
  margin-bottom:3px}
.tl-desc{font-size:13px;color:var(--ink-soft);line-height:1.5}
/* quote block */
.study-quote{background:var(--paper);border-left:3px solid var(--purple);border-radius:0 12px 12px 0;
  padding:20px 22px;margin-top:20px}
.study-quote p{font-size:15px;color:var(--ink);line-height:1.6;font-style:italic;margin-bottom:10px}
.study-quote cite{font-family:var(--display);font-weight:600;font-size:13px;color:var(--ink-soft);
  font-style:normal}
/* CTA in modal */
.study-modal-cta{padding:0 40px 36px;display:flex;gap:12px;align-items:center}
@media (max-width:980px){.cs-grid{grid-template-columns:1fr}}
@media (max-width:768px){
  .study-modal-body{grid-template-columns:1fr}
  .study-stats-band{grid-template-columns:repeat(2,1fr)}
  .study-stat:nth-child(2){border-right:0}
  .study-stat:nth-child(3){border-top:1px solid var(--line)}
  .study-modal-head{padding:28px 24px 24px}
  .study-modal-body{padding:24px}
  .study-modal-cta{padding:0 24px 28px}
  .cs-stats{grid-template-columns:repeat(3,1fr)}
  .hero.cases{padding:128px 0 60px}}