/* ============================================================
   Case Studies — supplemental styles
   Loaded after /assets/styles.css on /case-studies/* pages
   ============================================================ */

/* -------- Hero modifier for case detail pages -------- */
/* Reuses .hero from /assets/styles.css. Adds a darkening bg image
   layer behind the existing rays/glow so the brand mark stays visible. */
.hero--case .hero__bgimg{
  position:absolute;inset:0;z-index:0;
  background-size:cover;background-position:center;
  filter:saturate(.85) brightness(.78);
}
.hero--case .hero__bgimg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(2,19,74,.32) 0%, rgba(2,19,74,.55) 60%, rgba(2,19,74,.78) 100%),
    linear-gradient(120deg, rgba(2,19,74,.40) 0%, rgba(2,19,74,.10) 50%, rgba(2,19,74,.40) 100%);
}
.hero--case .hero__glow,
.hero--case .hero__rays{display:none}
.hero--case{display:flex;flex-direction:column}
.hero--case .hero__inner{flex:1 1 auto;display:flex;flex-direction:column;max-width:var(--container);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.hero--case .hero__copy{position:relative;z-index:3;max-width:none;flex:1 1 auto;display:flex;flex-direction:column;align-items:flex-start;min-height:clamp(420px,52vh,640px)}
.hero--case .hero__copy > .eyebrow,
.hero--case .hero__copy > h1,
.hero--case .hero__copy > .sub,
.hero--case .hero__copy > .hero__breadcrumb{align-self:flex-start}
.hero--case h1{max-width:28ch}
.hero--case .sub{max-width:72ch}

/* Highlights strip pinned to bottom of the case hero (dark bg) */
.hero--case .cs-highlights{
  align-self:stretch;
  margin-top:auto;
  background:transparent;border-radius:0;
  border:1px solid rgba(255,255,255,.14);
  border-left:1px solid rgba(255,255,255,.14);
  border-right:1px solid rgba(255,255,255,.14);
  grid-template-columns:repeat(4,1fr);
}
.hero--case .cs-highlights .cs-highlight{
  padding:clamp(22px,2.4vw,28px) clamp(20px,2vw,28px);
  border-right:1px solid rgba(255,255,255,.10);
  display:flex;flex-direction:column;justify-content:flex-start;
}
.hero--case .cs-highlights .cs-highlight:last-child{border-right:0}
.hero--case .cs-highlights .cs-highlight__lbl{color:var(--teal-soft);opacity:.9}
.hero--case .cs-highlights .cs-highlight__val{color:#fff}
@media (max-width:720px){
  .hero--case .hero__copy{min-height:0}
  .hero--case .cs-highlights{margin-top:clamp(28px,5vw,40px);grid-template-columns:repeat(2,1fr);row-gap:0}
  .hero--case .cs-highlights .cs-highlight{padding:18px 16px}
  .hero--case .cs-highlights .cs-highlight:nth-child(2){border-right:0}
  .hero--case .cs-highlights .cs-highlight:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.10)}
}
.hero__breadcrumb{
  font-size:14px;letter-spacing:.04em;color:rgba(255,255,255,.65);
  margin-bottom:18px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.hero__breadcrumb a{color:rgba(255,255,255,.82);transition:color .15s}
.hero__breadcrumb a:hover{color:var(--teal-soft)}
.hero__breadcrumb svg{opacity:.5}

/* -------- Index hero (smaller, lists below) -------- */
.cs-index-head{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg, #021a52 0%, #011848 60%, #02134a 100%);
  color:#fff;
  padding:clamp(120px,15vw,170px) 0 clamp(48px,6vw,72px);
}
.cs-index-head::before{
  content:"";position:absolute;inset:auto -10% -40% auto;width:60%;height:140%;
  background:radial-gradient(closest-side, rgba(0,188,156,.20), rgba(0,188,156,0) 65%);
  filter:blur(20px);pointer-events:none;
}
.cs-index-head__inner{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:18px;max-width:880px}
.cs-index-head h1{
  font-size:clamp(40px,6vw,80px);font-weight:600;letter-spacing:-.02em;line-height:1.02;
  color:#fff;margin:0;max-width:14ch;
}
.cs-index-head h1 em{font-style:normal;color:var(--teal)}
.cs-index-head .lede{color:rgba(255,255,255,.78);max-width:64ch;font-size:clamp(17px,1.4vw,20px);line-height:1.6;margin:0}
.cs-index-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  margin-top:36px;border-top:1px solid rgba(255,255,255,.10);padding-top:28px;
}
.cs-index-stats__item{padding-right:24px;border-right:1px solid rgba(255,255,255,.08)}
.cs-index-stats__item:last-child{border-right:0}
.cs-index-stats__num{font-size:clamp(24px,2.6vw,34px);font-weight:600;color:var(--teal);letter-spacing:-.01em;line-height:1;}
.cs-index-stats__lbl{font-size:13px;color:rgba(255,255,255,.62);margin-top:8px;letter-spacing:.02em;line-height:1.4}
@media (max-width:720px){
  .cs-index-stats{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .cs-index-stats__item{padding:0 16px 0 0;border-right:0}
  .cs-index-stats__item:nth-child(odd){border-right:1px solid rgba(255,255,255,.08)}
}

/* -------- Filter chips (scope tags) -------- */
.cs-filterbar{
  border-bottom:1px solid var(--line);
}
.cs-filterbar__inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:clamp(20px,2.4vw,28px) 0 clamp(20px,2.4vw,28px);
  flex-wrap:wrap;
}
.cs-filters{
  display:flex;flex-wrap:wrap;gap:10px;
  flex:1;min-width:0;
}
.cs-filters.is-hidden{display:none}
.cs-filter-toggle{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;color:var(--muted);
  background:transparent;border:0;cursor:pointer;
  padding:8px 4px;
  transition:color .15s;
}
.cs-filter-toggle:hover{color:var(--navy)}
.cs-filter-toggle svg{opacity:.7}
.cs-filter{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;
  color:var(--ink);background:#fff;
  border:1px solid var(--line);
  padding:9px 16px;border-radius:999px;
  cursor:pointer;transition:border-color .15s, background .15s, color .15s;
  user-select:none;
}
.cs-filter:hover{border-color:var(--teal-line);color:var(--navy)}
.cs-filter.is-active{
  background:var(--navy);color:#fff;border-color:var(--navy);
}
.cs-filter.is-active .cs-filter__count{color:var(--teal)}
.cs-filter__count{font-size:13px;color:var(--muted);font-weight:500;font-variant-numeric:tabular-nums;margin-left:2px}

/* -------- Cases grid: edge-to-edge, 3-up, no gaps -------- */
.cs-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  width:100%;
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
  background:var(--navy);
}
.cs-card{
  position:relative;display:block;
  aspect-ratio: 4 / 5;
  overflow:hidden;
  background:var(--navy);
  color:#fff;
  border-right:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
  isolation:isolate;
}
.cs-grid > .cs-card:nth-child(3n){border-right:0}
.cs-card__bg{
  position:absolute;inset:-1px;z-index:0;
  background-size:cover;background-position:center;
  transition:transform .8s cubic-bezier(.2,.8,.2,1), filter .4s ease;
  transform:scale(1.01);
  filter:saturate(.85);
  will-change:transform;
}
.cs-card__overlay{
  position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
    linear-gradient(180deg, rgba(1,24,72,.30) 0%, rgba(1,24,72,.55) 50%, rgba(1,24,72,.92) 100%);
  transition:background .35s ease;
}
.cs-card__corner{
  position:absolute;top:0;right:0;z-index:3;
  width:64px;height:64px;
  background:linear-gradient(225deg, rgba(0,188,156,.0) 0%, rgba(0,188,156,.0) 50%, rgba(0,188,156,.0) 100%);
  transition:background .3s ease;
  pointer-events:none;
}
.cs-card__rule{
  position:absolute;left:0;right:0;bottom:0;height:2px;z-index:3;
  background:var(--teal);
  transform:scaleX(0);transform-origin:left;
  transition:transform .45s cubic-bezier(.2,.8,.2,1);
}
.cs-card__inner{
  position:relative;z-index:2;height:100%;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:clamp(24px,2.6vw,36px);gap:10px;
}
.cs-card__title{order:1}
.cs-card__sub{order:2}
.cs-card__cta{order:4}
.cs-card__tag{
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal-soft);
  display:inline-flex;align-items:center;gap:8px;
  margin-top:10px;margin-bottom:0;order:3;
}
.cs-card__tag::before{content:"";width:5px;height:5px;background:var(--teal);border-radius:50%}
.cs-card__title{
  font-size:clamp(22px,2.2vw,28px);font-weight:600;letter-spacing:-.01em;line-height:1.15;
  color:#fff;margin:0;
}
.cs-card__sub{
  font-size:15px;line-height:1.5;color:rgba(255,255,255,.78);
  margin:0;max-width:32ch;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cs-card__cta{
  display:flex;align-items:center;gap:8px;margin-top:14px;
  font-size:14px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  color:#fff;
  opacity:.0;transform:translateY(6px);
  transition:opacity .3s ease, transform .3s ease;
}
.cs-card__cta svg{transition:transform .3s ease}

.cs-card:hover .cs-card__bg{transform:scale(1.06);filter:saturate(1)}
.cs-card:hover .cs-card__overlay{
  background:linear-gradient(180deg, rgba(1,24,72,.10) 0%, rgba(1,24,72,.45) 45%, rgba(1,24,72,.95) 100%);
}
.cs-card:hover .cs-card__rule{transform:scaleX(1)}
.cs-card:hover .cs-card__corner{
  background:linear-gradient(225deg, rgba(0,188,156,.85) 0%, rgba(0,188,156,0) 55%);
}
.cs-card:hover .cs-card__cta{opacity:1;transform:translateY(0)}
.cs-card:hover .cs-card__cta svg{transform:translateX(4px)}

@media (max-width:1080px){
  .cs-grid{grid-template-columns:repeat(2,1fr)}
  .cs-grid > .cs-card:nth-child(3n){border-right:1px solid rgba(255,255,255,.06)}
  .cs-grid > .cs-card:nth-child(2n){border-right:0}
  .cs-card{aspect-ratio:5 / 6}
}
@media (max-width:640px){
  .cs-grid{grid-template-columns:1fr}
  .cs-grid > .cs-card{border-right:0}
  .cs-card{aspect-ratio:5 / 4;min-height:340px}
}

/* -------- Case page — chapter sections -------- */
.cs-chapter{
  padding:clamp(56px,7vw,96px) 0;
  border-top:1px solid var(--line-2);
}
.cs-chapter:first-of-type{border-top:0}
.cs-chapter--dark{
  background:var(--navy);color:#fff;border-top:0;
  position:relative;overflow:hidden;
}
.cs-chapter--dark::before{
  content:"";position:absolute;inset:auto -10% -40% auto;width:50%;height:140%;
  background:radial-gradient(closest-side, rgba(0,188,156,.18), rgba(0,188,156,0) 65%);
  filter:blur(20px);pointer-events:none;
}
.cs-chapter--dark .prose-grid__aside h2{color:#fff}
.cs-chapter--dark .prose-grid__aside .lede{color:rgba(255,255,255,.6)}
.cs-chapter--dark .prose{color:rgba(255,255,255,.85)}
.cs-chapter--dark .prose p{color:rgba(255,255,255,.85)}
.cs-chapter--dark .prose strong{color:#fff}
.cs-chapter--dark .prose h2,
.cs-chapter--dark .prose h3{color:#fff}
.cs-chapter--dark .prose ul li{border-top-color:rgba(255,255,255,.10)}
.cs-chapter--dark .prose ul li:last-child{border-bottom-color:rgba(255,255,255,.10)}
.cs-chapter--bg{background:var(--bg)}

.cs-chapter__num{
  font-family:"Mazzard","Inter",monospace;
  font-size:13px;font-weight:600;letter-spacing:.16em;
  color:var(--teal);margin-bottom:12px;
  display:inline-flex;align-items:center;gap:10px;
}
.cs-chapter__num::before,.cs-chapter__num::after{
  content:"";width:14px;height:1px;background:currentColor;opacity:.6;
}
.cs-chapter--dark .cs-chapter__num{color:var(--teal-soft)}

/* -------- Highlights strip on case page -------- */
.cs-highlights{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;background:#fff;
}
.cs-highlight{
  padding:22px clamp(18px,2vw,28px);
  border-right:1px solid var(--line);
}
.cs-highlight:last-child{border-right:0}
.cs-highlight__lbl{
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--teal);margin-bottom:10px;
}
.cs-highlight__val{
  font-size:clamp(16px,1.4vw,18px);font-weight:600;color:var(--navy);line-height:1.3;letter-spacing:-.005em;
}
@media (max-width:720px){
  .cs-highlights{grid-template-columns:repeat(2,1fr)}
  .cs-highlight:nth-child(2){border-right:0}
  .cs-highlight:nth-child(-n+2){border-bottom:1px solid var(--line)}
}

/* -------- More cases footer (3 small cards) -------- */
.cs-more{
  background:var(--navy);color:#fff;
  padding:clamp(64px,8vw,100px) 0 0;
  position:relative;
}
.cs-more__head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;flex-wrap:wrap;
}
.cs-more h2{
  font-size:clamp(28px,3.4vw,42px);font-weight:600;letter-spacing:-.015em;line-height:1.1;
  color:#fff;margin:0;
}
.cs-more__link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;letter-spacing:.04em;
  color:var(--teal);
}
.cs-more__link svg{transition:transform .2s ease}
.cs-more__link:hover svg{transform:translateX(4px)}

.cs-more-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,.08);
}
.cs-more-grid > .cs-card{
  aspect-ratio:4 / 5;
  border-right:1px solid rgba(255,255,255,.08);
  border-bottom:0;
}
.cs-more-grid > .cs-card:nth-child(3n){border-right:0}
@media (max-width:1080px){
  .cs-more-grid{grid-template-columns:1fr 1fr}
  .cs-more-grid > .cs-card:nth-child(3){display:none}
  .cs-more-grid > .cs-card:nth-child(2n){border-right:0}
}
@media (max-width:640px){
  .cs-more-grid{grid-template-columns:1fr}
  .cs-more-grid > .cs-card:nth-child(2),
  .cs-more-grid > .cs-card:nth-child(3){display:none}
}

/* -------- Page CTA — already from styles.css .cta-panel -------- */
.cs-cta-wrap{padding:clamp(56px,8vw,96px) 0}

/* -------- Tools / methods chip lists -------- */
.cs-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.cs-chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;
  color:var(--navy);background:var(--bg);
  border:1px solid var(--line);
  padding:7px 12px;border-radius:6px;letter-spacing:.01em;
}
.cs-chapter--dark .cs-chip{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.12);
  color:#fff;
}

/* -------- Quote block on case page -------- */
.cs-quote{
  margin:clamp(24px,3vw,36px) 0 0;
  padding:clamp(24px,3vw,36px);
  border-left:3px solid var(--teal);
  background:var(--bg);border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:clamp(17px,1.6vw,21px);font-weight:500;line-height:1.5;color:var(--navy);
  letter-spacing:-.005em;
}
.cs-chapter--dark .cs-quote{
  background:rgba(255,255,255,.04);color:#fff;border-left-color:var(--teal);
}

/* -------- Hide mobile menu count nicely -------- */
@media (max-width:520px){
  .cs-filter__count{display:none}
}


/* -------- Wrapper for highlights strip on case page -------- */
.cs-highlights-wrap{padding:clamp(32px,4vw,56px) 0}

/* -------- Hide outdated index head; keep selectors but make harmless -------- */
.cs-index-head, .cs-index-stats{display:none}

/* -------- More cases image: avoid 1px subpixel grey strip -------- */
.cs-more-grid > .cs-card{
  border-bottom:0;
}
.cs-more-grid > .cs-card .cs-card__bg{inset:-1px}

/* -------- More cases head font fixes -------- */
.cs-more__link{font-size:14px}

/* -------- Chapter chips bigger -------- */
.cs-chip{font-size:14px}

/* -------- Mobile: filterbar stack -------- */
@media (max-width:720px){
  .cs-filterbar__inner{flex-direction:column;align-items:flex-start}
  .cs-filter-toggle{align-self:flex-end}
}