.case-study-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

.case-study-layout {
  flex: 1;
  width: min(1000px, calc(100% - 2rem));
  margin: 0 auto;
  padding: calc(5rem + var(--topbar-offset, 0px)) 0 5rem;
  position: relative;
  z-index: 1;
}

.case-study-header {
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
}

.case-study-kicker {
  margin: 0 0 1rem;
  color: var(--accent-red);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .12em;
}

.case-study-header h1 {
  max-width: 18ch;
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.12;
}

.case-study-lead {
  max-width: 65ch;
  margin: 1.2rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.case-study-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.7rem; }
.case-study-action {
  display: inline-flex;
  align-items: center;
  min-height: 2.7rem;
  padding: .55rem 1rem;
  border-radius: 10px;
  color: var(--bg);
  background: var(--text);
  font-weight: 700;
  text-decoration: none;
}
.case-study-action--secondary { color: var(--text); background: transparent; border: 1px solid var(--line); }
.case-study-action:hover { transform: translateY(-2px); }
.case-study-action:focus-visible,
.case-study-return a:focus-visible { outline: 2px solid var(--accent-red); outline-offset: 3px; }

.case-study-section { margin-top: 2.6rem; }
.case-study-section h2 { margin: 0 0 .85rem; font-size: clamp(1.4rem, 3vw, 1.8rem); }
.case-study-section > p { max-width: 72ch; line-height: 1.65; color: var(--muted); }
.case-study-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.case-study-card { border: 1px solid var(--line); border-radius: 14px; padding: 1.3rem; background: var(--panel); }
.case-study-card h3 { margin: 0 0 .65rem; font-size: 1.05rem; }
.case-study-card p { margin: 0; color: var(--muted); line-height: 1.55; font-size: .9rem; }
.case-study-proof { border-top: 1px solid var(--line); padding-top: 2rem; }
.case-study-return { display: flex; justify-content: center; margin-top: 2rem; }
.case-study-page .footer-transition,
.case-study-page .footer-main { position: relative; z-index: 1; }

html[data-theme="light"] .case-study-kicker { color: #176d8f; }

@media (max-width: 760px) {
  .case-study-layout { padding-top: calc(2rem + var(--topbar-offset, 0px)); }
  .case-study-grid { grid-template-columns: 1fr; }
  .case-study-header { padding: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .case-study-action:hover { transform: none; }
}