/* ============================================================
   CASE-STUDY.CSS — shared layout for project case studies
   Same editorial system as the homepage: flat blocks, hard
   rules, serif numerals. Tokens come from default.css.
   ============================================================ */

.case-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  display: block;
}

/* ── HERO ─────────────────────────────────────────────────── */
.case-hero {
  padding: 4.5rem 0 3.5rem;
}

.case-kicker {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--olive);
  margin: 0 0 1.2rem;
}

.case-hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.02;
  margin: 0 0 1.2rem;
  letter-spacing: -0.02em;
}

.case-lede {
  font-size: 1.12rem;
  max-width: 60ch;
  margin: 0 0 2.5rem;
}

.case-hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0 0 2.5rem;
}

/* Facts table (same pattern as homepage about section) */
.case-facts {
  margin: 0;
  border-top: 1px solid var(--border-strong);
  max-width: 46rem;
}

.case-facts .fact {
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
}

.case-facts dt {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--olive);
  padding-top: 0.15rem;
}

.case-facts dd {
  margin: 0;
  font-size: 0.95rem;
}

/* ── SECTIONS ─────────────────────────────────────────────── */
.case-section {
  border-top: 1px solid var(--border-strong);
  padding: 3.5rem 0;
  max-width: none;
  margin: 0;
  text-align: left;
}

.case-section > h2 {
  font-size: 1rem;
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--olive);
  margin: 0 0 2rem;
}

.case-section h3 {
  font-size: 1.4rem;
  margin: 0 0 0.6rem;
}

.case-section ul,
.case-section ol {
  max-width: 62ch;
  padding-left: 1.2rem;
}

.case-section li + li { margin-top: 0.35rem; }

.section-underline { display: none; }

/* ── STEP LIST (numbered, serif numerals) ─────────────────── */
.step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
  max-width: 46rem;
}

.step-list > li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 0 1.5rem;
  padding: 1.8rem 0;
  border-top: 1px solid var(--border);
}

.step-list > li:first-child { border-top: none; padding-top: 0; }

.step-list > li::before {
  content: counter(step, decimal-leading-zero);
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.4rem;
  color: var(--accent);
  line-height: 1.4;
}

.step-list h3 { margin-top: 0; }
.step-list p:last-child { margin-bottom: 0; }
.step-list ul { margin: 0.4rem 0 0.8rem; }

/* ── TWO-COLUMN + SIDE NOTES ──────────────────────────────── */
.case-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.side-note {
  border: 1px solid var(--border-strong);
  background: var(--bg-warm);
  padding: 1.5rem 1.6rem;
  font-size: 0.95rem;
}

.side-note h3 {
  font-size: 0.8rem;
  font-family: 'Archivo', system-ui, sans-serif;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--olive);
  margin: 0 0 0.7rem;
}

.side-note h3 + ul { margin-top: 0; }
.side-note ul { padding-left: 1.1rem; margin-bottom: 1.4rem; }
.side-note ul:last-child { margin-bottom: 0; }

/* ── MEDIA ────────────────────────────────────────────────── */
.case-section figure { margin: 0; }

.case-section figure img,
.case-figure img {
  width: 100%;
  display: block;
  border: 1px solid var(--border-strong);
}

.case-section figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.45rem;
}

.visual-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: flex-start;
  max-width: 1000px;
}

/* Screenshot carousel — flat */
.carousel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: var(--card-bg);
}

.carousel-track {
  display: flex;
  transition: transform 0.4s ease;
}

.carousel-slide { min-width: 100%; }
.carousel-slide img { width: 100%; display: block; border: none; }

.carousel-slide figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.6rem 0.9rem 0.8rem;
  text-align: center;
  max-width: 90%;
  margin: 0 auto;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--heading);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
}

.carousel-btn:hover { background: var(--subtle-accent); }
.carousel-btn--prev { left: 10px; }
.carousel-btn--next { right: 10px; }

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 0.75rem 0.8rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--border-strong);
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.carousel-dot.is-active { background: var(--accent); border-color: var(--accent); }

/* Phone demo (rounded on purpose — it depicts a device) */
.phone-frame {
  width: 100%;
  max-width: 375px;
  aspect-ratio: 375 / 812;
  border-radius: 32px;
  border: 10px solid var(--heading);
  overflow: hidden;
  background: #000;
  margin: 0 auto;
}

.phone-frame iframe {
  width: 100%;
  height: 100%;
  border: none;
}

.demo-links {
  text-align: center;
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  gap: 3rem;
  align-items: center;
  max-width: 1000px;
  margin-top: 2rem;
}

.demo-phone { text-align: center; }

/* ── CODE ─────────────────────────────────────────────────── */
pre.code-snippet {
  margin-top: 0.9rem;
  padding: 1rem 1.2rem;
  background: var(--bg-warm);
  border: 1px solid var(--border-strong);
  font-size: 0.85rem;
  overflow-x: auto;
  color: var(--text);
}

pre.code-snippet code {
  font-family: "JetBrains Mono", Menlo, Monaco, Consolas, "Courier New", monospace;
}

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .case-cols,
  .demo-layout,
  .visual-grid { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 640px) {
  .case-hero { padding: 3rem 0 2.5rem; }
  .case-section { padding: 2.5rem 0; }
  .case-facts .fact { grid-template-columns: 1fr; gap: 0.2rem; }
  .step-list > li { grid-template-columns: 1fr; }
  .step-list > li::before { margin-bottom: 0.3rem; }
}