/* ═════════════════ CASE STUDY PAGE ═════════════════ */
.case-page { background: var(--bg); }

/* Reading progress line, pinned above everything */
.progress {
  position: fixed; inset: 0 0 auto; z-index: 60;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
}
.progress span {
  display: block; height: 100%; width: 0;
  background: linear-gradient(90deg, var(--brand), var(--brand-hi));
  transform-origin: left;
  transition: width .12s linear;
}

/* ─── Banner ─── */
.banner {
  position: relative;
  margin: 0 var(--gutter);
  padding: clamp(96px, 12vw, 150px) clamp(20px, 5vw, 72px) 0;
  border-radius: var(--r-xl);
  background:
    radial-gradient(110% 80% at 50% -10%, rgba(94, 106, 210, 0.35), transparent 62%),
    #0c0d0f;
  box-shadow: inset 0 0 0 1px var(--line-2);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.banner::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: radial-gradient(rgba(255, 255, 255, 0.13) 1px, transparent 1.3px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 20%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 20%, #000 20%, transparent 80%);
}
.banner__inner { max-width: 940px; margin: 0 auto; text-align: center; }
.banner__eyebrow {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font: 500 12px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}
.banner__title {
  margin: 0;
  font-size: clamp(32px, 5.2vw, 62px);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.04em;
}
.banner__sub {
  max-width: 62ch;
  margin: clamp(18px, 2vw, 26px) auto 0;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.66);
}
.banner__frame {
  max-width: 1040px;
  margin: clamp(40px, 5vw, 70px) auto 0;
  aspect-ratio: 16 / 9;
  display: grid; place-items: center;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 -20px 60px -30px rgba(0, 0, 0, 0.8);
  text-align: center;
}
.banner__ph { font: 500 12.5px/1.8 var(--mono); color: rgba(255, 255, 255, 0.5); padding: 20px; }
.banner__ph b { color: #fff; }

/* ─── Layout: sticky side nav + body ─── */
.case {
  display: grid;
  grid-template-columns: 210px minmax(0, 1fr);
  gap: clamp(32px, 6vw, 88px);
  padding: clamp(56px, 7vw, 96px) var(--gutter) clamp(72px, 9vw, 120px);
}
.case__side { position: relative; }
.case__side > * { position: sticky; top: 92px; }
.case__side .toc { top: 148px; }

.back {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 20px;
  padding: 10px 16px 10px 13px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px var(--line-2);
  font-size: 13.5px; font-weight: 500;
  transition: background-color .3s, box-shadow .3s;
}
.back svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; transition: transform .4s var(--ease); }
.back:hover { background: rgba(255, 255, 255, 0.08); box-shadow: inset 0 0 0 1px var(--line-3); }
.back:hover svg { transform: translateX(-3px); }

.toc { display: flex; flex-direction: column; gap: 2px; }
.toc a {
  position: relative;
  padding: 7px 0 7px 20px;
  font-size: 14.5px;
  color: var(--muted-2);
  transition: color .3s;
}
.toc a::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 7px; height: 7px; margin-top: -3.5px;
  border-radius: 50%;
  background: var(--brand-hi);
  opacity: 0; transform: scale(.4);
  transition: opacity .3s, transform .4s var(--ease);
}
.toc a:hover { color: var(--text); }
.toc a.is-active { color: var(--text); font-weight: 500; }
.toc a.is-active::before { opacity: 1; transform: none; }

/* ─── Body ─── */
.case__body { max-width: 760px; }
.sec { scroll-margin-top: 110px; padding-bottom: clamp(48px, 6vw, 76px); }
.sec + .sec { border-top: 1px solid var(--line); padding-top: clamp(40px, 5vw, 64px); }
.sec__title {
  margin: 0 0 24px;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 600;
  letter-spacing: -0.035em;
  line-height: 1.1;
}
.sec h3 { margin: 28px 0 10px; font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.sec h3:first-of-type { margin-top: 0; }
.sec p { margin: 0 0 14px; font-size: 16.5px; line-height: 1.7; color: var(--body); }

.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 28px 40px; margin-top: 28px; }
.people { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.people li { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; font-size: 15.5px; }
.people b { font-weight: 500; box-shadow: inset 0 -1px 0 var(--line-3); }
.people span { color: var(--muted); font-size: 14.5px; }

.facts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px; margin: 36px 0 0; padding: 0;
  border-radius: var(--r-lg); overflow: hidden;
  background: var(--line);
  box-shadow: inset 0 0 0 1px var(--line);
}
.facts div { padding: 18px; background: var(--surface-2); }
.facts dt { font: 500 11px/1 var(--mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 10px 0 0; font-size: 15.5px; font-weight: 500; }

.list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.list li { position: relative; padding-left: 26px; font-size: 16.5px; line-height: 1.65; color: var(--body); }
.list li::before {
  content: ""; position: absolute; left: 4px; top: 11px;
  width: 7px; height: 7px; border-radius: 50%; background: var(--text);
}

.quote {
  margin: 28px 0 0; padding: 24px 26px;
  border-radius: var(--r-lg);
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--line);
  border-left: 2px solid var(--brand);
  font-family: var(--serif); font-style: italic;
  font-size: clamp(19px, 2vw, 24px); line-height: 1.4;
}
.quote cite { display: block; margin-top: 14px; font: 500 12px/1 var(--mono); font-style: normal; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }

/* Empty image slots */
.shot {
  display: grid; place-items: center;
  margin: 28px 0 0;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-lg);
  background: var(--surface-2);
  box-shadow: inset 0 0 0 1px var(--line);
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1.3px);
  background-size: 18px 18px;
}
.shot span {
  padding: 10px 16px; border-radius: 999px;
  background: rgba(20, 21, 23, 0.9);
  box-shadow: inset 0 0 0 1px var(--line-2);
  font: 500 12px/1 var(--mono); color: var(--muted);
}
.shot--tall { aspect-ratio: 4 / 3; }
.shot--sm { aspect-ratio: 4 / 3; margin: 0; }
.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 28px; }

.outcomes { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 20px; margin: 0; padding: 0; list-style: none; }
.outcomes strong { display: block; font-size: clamp(32px, 4vw, 44px); font-weight: 600; letter-spacing: -0.04em; line-height: 1; color: var(--brand-hi); }
.outcomes span { display: block; margin-top: 10px; font: 500 12px/1.4 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.note { margin-top: 24px !important; font-size: 14px !important; color: var(--muted) !important; }

.next-case { margin-top: 20px; }

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .case { grid-template-columns: minmax(0, 1fr); gap: 0; padding-top: 28px; }
  .case__side { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
  .case__side > * { position: static; }
  .back { margin: 0; flex: none; }
  .toc {
    position: sticky; top: 72px; z-index: 20;
    flex-direction: row; gap: 4px;
    overflow-x: auto;
    margin: 0 calc(var(--gutter) * -1); padding: 8px var(--gutter);
    scrollbar-width: none;
  }
  .toc::-webkit-scrollbar { display: none; }
  .toc a {
    padding: 8px 13px; border-radius: 999px; white-space: nowrap;
    background: rgba(255, 255, 255, 0.05);
    box-shadow: inset 0 0 0 1px var(--line);
    font-size: 13.5px;
  }
  .toc a::before { display: none; }
  .toc a.is-active { background: var(--brand); color: #fff; box-shadow: none; }
  .case__side { position: sticky; top: 56px; z-index: 20; background: var(--bg); padding: 10px 0 8px; box-shadow: 0 10px 14px -12px rgba(0, 0, 0, 0.35); }
}
@media (max-width: 560px) {
  .banner { margin: 0 8px; border-radius: 20px; padding-top: 104px; }
  .case__side { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* Real screenshots inside the case body */
.shot--has-img { padding: clamp(14px, 2vw, 26px); background-image: none; }
.shot--has-img img { max-height: 620px; width: auto; max-width: 100%; border-radius: var(--r-md); box-shadow: 0 20px 44px -22px rgba(0, 0, 0, 0.9); }