/* Shared portfolio treatment for long-form case studies. Loaded after each study's original document CSS. */
body.case-study-page {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top left, #ffffff 0, var(--bg) 46%, #f2f4f8 100%);
  min-height: 100vh;
}
body.case-study-page::before {
  content: "";
  position: fixed;
  inset: -20vh -10vw auto auto;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(49, 94, 251, .13), transparent 62%);
  pointer-events: none;
  z-index: -1;
}
.case-study-page a { color: inherit; }
.case-study-main { overflow: hidden; }

.case-study-page .site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(28,37,61,.08);
}
.case-study-page .main-nav a.active,
.case-study-page .main-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(49,94,251,.08);
}
.case-study-page .main-nav a[href="../contact.html"] {
  color: #fff;
  background: var(--accent);
}

.smart-back-btn {
  position: fixed;
  top: 96px;
  left: max(18px, calc((100vw - var(--max)) / 2));
  z-index: 76;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-height: 42px;
  padding: .72rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(28,37,61,.12);
  background: rgba(255,255,255,.90);
  color: var(--ink);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(14px);
  font-family: "Oswald", system-ui, sans-serif;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  line-height: 1;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform .16s ease, background .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.smart-back-btn:hover {
  transform: translateY(-1px);
  background: #fff;
  border-color: rgba(49,94,251,.24);
  box-shadow: var(--shadow);
}
.smart-back-btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.case-study-page .cover {
  min-height: auto;
  display: block;
  place-items: initial;
  color: var(--text);
  padding: clamp(6.4rem, 11vw, 9rem) 0 clamp(4.4rem, 8vw, 6.8rem);
  background:
    radial-gradient(circle at 10% 10%, rgba(49,94,251,.17), transparent 40%),
    radial-gradient(circle at 90% 8%, rgba(242,125,66,.13), transparent 42%),
    linear-gradient(135deg, rgba(255,255,255,.78), rgba(238,245,255,.88));
  border-bottom: 1px solid rgba(28,37,61,.08);
}
.case-study-page .cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(49,94,251,.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(49,94,251,.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.78), transparent 84%);
  pointer-events: none;
}
.case-study-page .cover::after { display: none !important; }
.case-study-page .cover-inner {
  position: relative;
  width: min(100% - 36px, var(--max));
  max-width: var(--max);
  margin: 0 auto;
}
.case-study-page .cover-tag,
.case-study-page .section-eye,
.case-study-page .compare-label,
.case-study-page .tech-pill,
.case-study-page .cover-stat .l,
.case-study-page .stat-box .l,
.case-study-page .stat-card .l,
.case-study-page .score-label,
.case-study-page .lens-table th,
.case-study-page .swatch,
.case-study-page .new-tag {
  font-family: "Oswald", system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .16em;
}
.case-study-page .cover-tag {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--muted);
  background: rgba(255,255,255,.78);
  border: 1px solid rgba(28,37,61,.10);
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  padding: .48rem .84rem;
  font-size: .72rem;
  margin-bottom: 1.2rem;
}
.case-study-page .cover-tag::before {
  content: "";
  width: .55rem;
  height: .55rem;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(49,94,251,.11);
}
.case-study-page .cover h1 {
  font-family: "Oswald", system-ui, sans-serif;
  font-size: clamp(3.1rem, 8.7vw, 7rem);
  font-weight: 700;
  line-height: .88;
  letter-spacing: .055em;
  text-transform: uppercase;
  color: var(--ink);
  max-width: 1080px;
  margin: 0 0 1.35rem;
}
.case-study-page .cover h1 em,
.case-study-page .cover h1 span {
  color: var(--accent);
  font-style: normal;
}
.case-study-page .cover-sub {
  max-width: 840px;
  color: #3d4554;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  line-height: 1.65;
  margin: 0 0 1.8rem;
}
.case-study-page .cover-divider {
  width: 58px;
  height: 3px;
  background: var(--accent);
  border-radius: 999px;
  margin: 1.8rem 0;
}
.case-study-page .cover-stats,
.case-study-page .stat-grid,
.case-study-page .stat-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  max-width: 980px;
  margin: 2rem 0 0;
}
.case-study-page .cover-stat,
.case-study-page .stat-box,
.case-study-page .stat-card {
  background: rgba(255,255,255,.90);
  border: 1px solid rgba(28,37,61,.10);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  padding: 1.1rem 1.05rem;
  text-align: left;
}
.case-study-page .cover-stat .n,
.case-study-page .stat-box .n,
.case-study-page .stat-card .n {
  display: block;
  font-family: "Oswald", system-ui, sans-serif;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 700;
  line-height: .9;
  color: var(--accent);
}
.case-study-page .cover-stat .l,
.case-study-page .stat-box .l,
.case-study-page .stat-card .l {
  display: block;
  color: var(--muted);
  font-size: .64rem;
  line-height: 1.35;
  margin-top: .45rem;
}

.case-study-page .doc {
  width: min(100% - 36px, 980px);
  max-width: 980px;
  margin: 0 auto;
  padding: 0 0 clamp(4rem, 8vw, 7rem);
}
.case-study-page .section {
  margin-top: 0;
  padding: clamp(3.8rem, 7vw, 6.4rem) 0 0;
  scroll-margin-top: 120px;
}
.case-study-page .section:first-child { padding-top: clamp(3.8rem, 7vw, 6.4rem); }
.case-study-page .section-eye {
  color: var(--accent);
  font-size: .72rem;
  margin: 0 0 .8rem;
}
.case-study-page .section h2,
.case-study-page .section > h2,
.case-study-page .sub-h,
.case-study-page .sub-label,
.case-study-page .callout h3 {
  font-family: "Oswald", system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .07em;
  line-height: .98;
  color: var(--ink);
}
.case-study-page .section h2,
.case-study-page .section > h2 {
  font-size: clamp(2.1rem, 4.9vw, 4.2rem);
  margin: 0 0 1.4rem;
}
.case-study-page .sub-h,
.case-study-page .sub-label {
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  margin: 2.2rem 0 .9rem;
}
.case-study-page .section p,
.case-study-page .prose p {
  color: #444c5b;
  font-size: 1.03rem;
  line-height: 1.78;
  margin-bottom: 1rem;
}
.case-study-page .prose p:last-child,
.case-study-page .section p:last-child { margin-bottom: 0; }
.case-study-page code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: rgba(49,94,251,.08);
  border: 1px solid rgba(49,94,251,.10);
  border-radius: .45rem;
  color: #244ce0;
  padding: .08rem .32rem;
}
.case-study-page hr.div,
.case-study-page hr.divider {
  border: none;
  border-top: 1px solid rgba(28,37,61,.10);
  margin: clamp(3.6rem, 6vw, 5.5rem) 0 0;
}

.case-study-page .pull,
.case-study-page .pull-quote,
.case-study-page .callout,
.case-study-page .compare-side,
.case-study-page .score-track,
.case-study-page .swatch-dot,
.case-study-page .lens-table,
.case-study-page .card,
.case-study-page .card.pass,
.case-study-page .card.note,
.case-study-page .card.warn,
.case-study-page .finding,
.case-study-page .finding.pass,
.case-study-page .finding.warn,
.case-study-page .finding.new,
.case-study-page .compare-side,
.case-study-page .tech-pill {
  border-color: rgba(28,37,61,.10);
}
.case-study-page .pull,
.case-study-page .pull-quote,
.case-study-page .callout {
  background: rgba(255,255,255,.90);
  color: var(--text);
  border: 1px solid rgba(28,37,61,.10);
  border-left: 6px solid var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 1.45rem 1.6rem;
  margin: 2rem 0;
}
.case-study-page .pull p,
.case-study-page .pull-quote p,
.case-study-page .callout p {
  color: #444c5b;
}
.case-study-page .pull p:first-child,
.case-study-page .pull-quote p,
.case-study-page .callout h3 {
  font-family: "Oswald", system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: .07em;
  line-height: 1.05;
  color: var(--ink);
  font-style: normal;
  font-size: clamp(1.55rem, 3.3vw, 2.7rem);
  margin: 0 0 .65rem;
}
.case-study-page .pull .small { color: var(--muted); }
.case-study-page .cards,
.case-study-page .card-list,
.case-study-page .findings {
  display: grid;
  gap: .85rem;
  margin: 1.35rem 0;
}
.case-study-page .card,
.case-study-page .finding,
.case-study-page .compare-side,
.case-study-page .tech-pill {
  background: rgba(255,255,255,.88);
  border: 1px solid rgba(28,37,61,.10);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-soft);
  color: #444c5b;
}
.case-study-page .card,
.case-study-page .finding { padding: 1rem 1.1rem; }
.case-study-page .card:hover { transform: none; box-shadow: var(--shadow-soft); }
.case-study-page .card .dot,
.case-study-page .finding .icon {
  background: var(--accent) !important;
  color: #fff !important;
  box-shadow: 0 0 0 5px rgba(49,94,251,.10);
}
.case-study-page .finding { grid-template-columns: 34px 1fr; }
.case-study-page .finding strong,
.case-study-page .card strong { color: var(--ink); }
.case-study-page .compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 1rem;
  margin: 1.7rem 0;
}
.case-study-page .compare-side { padding: 1.2rem; }
.case-study-page .compare-label { color: var(--accent); font-size: .66rem; }
.case-study-page .tech-row,
.case-study-page .palette {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin: 1rem 0 1.5rem;
}
.case-study-page .tech-pill {
  border-radius: 999px;
  box-shadow: none;
  color: var(--muted);
  padding: .42rem .75rem;
  font-size: .72rem;
}
.case-study-page .score-fill { background: var(--accent); }
.case-study-page .lens-table {
  background: rgba(255,255,255,.88);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}
.case-study-page .lens-table th { color: var(--muted); }
.case-study-page .grade,
.case-study-page .grade-a,
.case-study-page .grade-ap,
.case-study-page .grade-b { color: var(--accent); }
.case-study-page .new-tag { background: var(--accent); }
.case-study-page .swatch-dot { box-shadow: var(--shadow-soft); }

.case-study-page .site-footer {
  margin-top: 0;
}

@media (max-width: 1020px) {
  .case-study-page .cover-stats,
  .case-study-page .stat-grid,
  .case-study-page .stat-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .smart-back-btn { left: 18px; }
}
@media (max-width: 780px) {
  .smart-back-btn {
    top: auto;
    bottom: calc(18px + env(safe-area-inset-bottom));
    left: 18px;
    right: 18px;
    justify-content: center;
  }
  .case-study-page .cover { padding-top: 4.6rem; }
  .case-study-page .cover h1 { font-size: clamp(2.7rem, 15vw, 4.8rem); }
  .case-study-page .doc,
  .case-study-page .cover-inner { width: min(100% - 24px, var(--max)); }
  .case-study-page .compare { grid-template-columns: 1fr; }
  .case-study-page .section { scroll-margin-top: 88px; }
}
@media (max-width: 520px) {
  .case-study-page .cover-stats,
  .case-study-page .stat-grid,
  .case-study-page .stat-row { grid-template-columns: 1fr; }
  .case-study-page .pull,
  .case-study-page .pull-quote,
  .case-study-page .callout,
  .case-study-page .card,
  .case-study-page .finding,
  .case-study-page .compare-side,
  .case-study-page .cover-stat,
  .case-study-page .stat-box,
  .case-study-page .stat-card { border-radius: 18px; }
}

.case-study-page .cta-row,
.case-study-page .hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-items: center;
  margin-top: 1.2rem;
}
.case-study-page .btn.primary,
.case-study-page .btn.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 14px 32px rgba(49,94,251,.30);
}
.case-study-page .btn.primary:hover,
.case-study-page .btn.btn-primary:hover {
  background: #244ce0;
  color: #fff;
}
.case-study-page .btn:not(.primary):not(.btn-primary) {
  color: var(--ink);
  border-color: rgba(28,37,61,.16);
  background: rgba(255,255,255,.78);
}