/* Detailed case studies V4 */
body.case-v4 { background: #f3f1ec; }
body.case-v4 .page-main { overflow: clip; }

body.case-v4 .nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: linear-gradient(180deg, rgba(4,18,17,.82), transparent);
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
}
body.case-v4 .nav.scrolled {
  background: rgba(4,18,17,.9);
  border-bottom: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(18px) saturate(1.2);
}
body.case-v4 .nav .nav-menu > a,
body.case-v4 .nav .brand small { color: rgba(255,255,255,.8); }
body.case-v4 .nav .nav-menu > a:hover,
body.case-v4 .nav .nav-menu > a[aria-current="page"] { color: #fff; }
body.case-v4 .nav .nav-toggle { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.22); }
body.case-v4 .nav .nav-toggle span { background: #fff; }
body.case-v4 .nav .nav-cta { color: #fff; background: var(--coral); border-color: transparent; }

.case-v4 .case-hero {
  position: relative;
  min-height: min(850px, 88svh);
  display: flex;
  flex-direction: column;
  justify-content: end;
  text-align: left;
  max-width: none;
  padding: 160px max(6vw,24px) clamp(74px,9vw,120px);
  overflow: hidden;
  background: #071816;
}
.case-v4 .case-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  opacity: .62;
  filter: saturate(.75) contrast(1.08);
}
body.case-powergen .case-hero::before { background-image: url("ezgif-50-jpg/ezgif-frame-148.jpg"); }
body.case-td .case-hero::before { background-image: url("ezgif-50-jpg/ezgif-frame-120.jpg"); }
body.case-firs .case-hero::before { background-image: url("ezgif-50-jpg/ezgif-frame-072.jpg"); }
.case-v4 .case-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(3,17,16,.96) 0%, rgba(3,17,16,.78) 50%, rgba(3,17,16,.3) 100%),
    linear-gradient(0deg, rgba(3,17,16,.95), transparent 62%);
}
.case-v4 .case-hero > * { position: relative; z-index: 2; margin-inline: 0; }
.case-v4 .case-hero .eyebrow { color: #e58e83; }
.case-v4 .case-hero h1 {
  max-width: 14ch;
  margin: 22px 0 0;
  color: #fff;
  font-size: clamp(52px,7vw,100px);
  line-height: .94;
  letter-spacing: -.055em;
}
.case-v4 .case-hero .sub {
  max-width: 65ch;
  margin: 28px 0 0;
  color: rgba(255,255,255,.68);
  font-size: clamp(17px,1.6vw,21px);
  line-height: 1.72;
}
.case-v4 .case-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: max-content;
  margin-top: 34px;
  padding: 11px 14px;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;
  background: rgba(255,255,255,.045);
  color: rgba(255,255,255,.72);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
}

.case-v4 .section.tight:has(.case-metrics) {
  position: relative;
  z-index: 4;
  margin-top: -54px;
  padding-top: 0;
  padding-bottom: clamp(50px,7vw,92px);
}
.case-v4 .case-metrics {
  display: grid;
  grid-template-columns: repeat(4,1fr);
  overflow: hidden;
  border: 1px solid rgba(6,87,88,.12);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 30px 90px -56px rgba(6,64,63,.55);
}
.case-v4 .case-metric {
  min-height: 170px;
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  justify-content: end;
  text-align: left;
  border-right: 1px solid rgba(6,87,88,.1);
}
.case-v4 .case-metric:last-child { border-right: 0; }
.case-v4 .case-metric strong { font-size: clamp(34px,4.2vw,58px); color: var(--teal-deep); line-height: 1; letter-spacing: -.05em; }
.case-v4 .case-metric span { margin-top: 12px; color: rgba(6,64,63,.6); font-size: 12px; line-height: 1.5; text-transform: none; letter-spacing: .02em; }

.case-v4 .case-layout {
  display: grid;
  grid-template-columns: 270px minmax(0,790px);
  justify-content: space-between;
  gap: clamp(60px,8vw,120px);
  align-items: start;
  padding-top: clamp(70px,9vw,126px);
}
.case-v4 .case-aside {
  position: sticky;
  top: 116px;
  display: grid;
  gap: 0;
  overflow: hidden;
  border: 1px solid rgba(6,87,88,.12);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 70px -54px rgba(6,64,63,.45);
}
.case-v4 .case-aside-card { padding: 22px; border-bottom: 1px solid rgba(6,87,88,.09); background: #fff; }
.case-v4 .case-aside-card:last-child { border-bottom: 0; }
.case-v4 .case-aside-card span { display: block; margin-bottom: 8px; color: var(--coral); font-size: 9px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.case-v4 .case-aside-card strong { color: var(--teal-deep); font-size: 14px; line-height: 1.5; }

.case-v4 .case-content { counter-reset: case-section; }
.case-v4 .case-section {
  counter-increment: case-section;
  position: relative;
  margin-bottom: clamp(72px,9vw,112px);
  padding-bottom: clamp(72px,9vw,112px);
  border-bottom: 1px solid rgba(6,87,88,.12);
}
.case-v4 .case-section::before {
  content: "0" counter(case-section);
  position: absolute;
  right: 0;
  top: -12px;
  color: rgba(196,105,96,.16);
  font-size: clamp(70px,9vw,118px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.07em;
}
.case-v4 .case-section > * { position: relative; z-index: 1; }
.case-v4 .case-section h2 {
  max-width: 17ch;
  margin: 16px 0 26px;
  color: var(--teal-deep);
  font-size: clamp(36px,4.5vw,58px);
  line-height: 1.02;
  letter-spacing: -.045em;
}
.case-v4 .case-section > p:not(.eyebrow) {
  max-width: 69ch;
  margin-bottom: 20px;
  color: rgba(6,64,63,.74);
  font-size: 18px;
  line-height: 1.82;
}
.case-v4 .case-checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 36px; }
.case-v4 .case-checklist > div {
  min-height: 190px;
  padding: 26px;
  border: 1px solid rgba(6,87,88,.1);
  border-radius: 20px;
  background: #fff;
  box-shadow: 0 22px 60px -50px rgba(6,64,63,.4);
}
.case-v4 .case-checklist strong { display: block; max-width: 18ch; color: var(--teal-deep); font-size: 18px; line-height: 1.2; }
.case-v4 .case-checklist span { display: block; margin-top: 12px; color: rgba(6,64,63,.64); font-size: 14px; line-height: 1.65; }

.case-v4 .case-outcome {
  position: relative;
  overflow: hidden;
  padding: clamp(42px,6vw,66px);
  border-radius: 30px;
  background: #071816;
  color: #fff;
}
.case-v4 .case-outcome::before { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; right: -120px; bottom: -220px; background: radial-gradient(circle,rgba(196,105,96,.28),transparent 68%); }
.case-v4 .case-outcome > * { position: relative; }
.case-v4 .case-outcome h2 { max-width: 16ch; margin: 16px 0 28px; color: #fff; font-size: clamp(36px,4vw,52px); line-height: 1.02; letter-spacing: -.04em; }
.case-v4 .case-outcome .chip { color: rgba(255,255,255,.82); background: rgba(255,255,255,.055); border-color: rgba(255,255,255,.14); }

.case-v4 .case-workstreams {
  max-width: none;
  padding: clamp(90px,11vw,150px) 0;
  background: #fffdf8;
}
.case-v4 .case-workstreams > .section { padding-top: 0; padding-bottom: 0; }
.case-v4 .case-workstreams .grid { grid-template-columns: repeat(3,1fr); }
.case-v4 .case-workstreams .feature { min-height: 280px; padding: 30px; border-radius: 24px; background: #fff; }
.case-v4 .case-workstreams .feature h3 { margin-top: auto; font-size: 22px; }
.case-v4 .case-workstreams .feature::before { content: attr(data-index); color: var(--coral); font-size: 11px; letter-spacing: .16em; }

.case-v4 .cta-band { border-radius: 30px; }

@media (max-width:980px) {
  .case-v4 .case-layout { grid-template-columns: 1fr; }
  .case-v4 .case-aside { position: static; grid-template-columns: repeat(2,1fr); }
  .case-v4 .case-aside-card { border-right: 1px solid rgba(6,87,88,.09); }
  .case-v4 .case-workstreams .grid { grid-template-columns: repeat(2,1fr); }
}
@media (max-width:760px) {
  .case-v4 .case-hero { min-height: 760px; }
  .case-v4 .case-hero h1 { font-size: clamp(48px,13vw,72px); max-width: 10ch; }
  .case-v4 .case-metrics { grid-template-columns: 1fr 1fr; }
  .case-v4 .case-metric:nth-child(2) { border-right: 0; }
  .case-v4 .case-metric:nth-child(-n+2) { border-bottom: 1px solid rgba(6,87,88,.1); }
  .case-v4 .case-checklist { grid-template-columns: 1fr; }
  .case-v4 .case-workstreams .grid { grid-template-columns: 1fr; }
}
@media (max-width:540px) {
  .case-v4 .case-aside { grid-template-columns: 1fr; }
  .case-v4 .case-aside-card { border-right: 0; }
  .case-v4 .case-metric { min-height: 140px; padding: 23px 18px; }
  .case-v4 .case-section > p:not(.eyebrow) { font-size: 17px; }
}