/**
 * Engineering case studies — technical, editorial, measurable
 */

/**
 * Wrapper itself must NOT have padding-top — see the matching note in
 * case-study.css. The fixed <nav> is rendered as a child of this same
 * div; padding here would push the nav off the viewport top.
 */
.case-study-page--engineering {
  background: #ffffff;
}

.cs-engineering-main {
  padding: calc(var(--nav-h) + var(--s6)) var(--sec-px) var(--s14);
}

/* When the engineering main also already has the case-study-main top
   padding rule, prefer the engineering value (they're equivalent, but
   we don't want them to stack). */
#deep-case-study-root.case-study-page > main.case-study-main.cs-engineering-main {
  padding-top: calc(var(--nav-h) + var(--s6));
}

/* ── Hero (editorial weight) ─────────────────────────── */
.cs-hero {
  max-width: 60rem;
  margin: 0 auto clamp(2rem, 4vw, 3rem);
}

.case-study-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 4px 0;
  margin-bottom: var(--s4);
}
.case-study-kicker::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--text-3);
  display: inline-block;
}

.cs-hero h1 {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(2.55rem, 5vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.042em;
  line-height: 1.05;
  margin: 0 0 var(--s4);
  color: var(--text-0);
}

.cs-hero-lead {
  font-size: clamp(1.12rem, 1.7vw, 1.28rem);
  line-height: 1.62;
  color: var(--text-1);
  font-weight: 300;
  margin: 0 0 var(--s6);
  max-width: 43rem;
}

/* ── Editorial section pacing ────────────────────────── */
/* Portfolio Enhancement — Phase 2: widen the case-study content container so
   outcomes / features / stack grids breathe on large screens. Text blocks keep
   a comfortable measure via the .cs-prose / .cs-section-title caps below. */
.cs-sections {
  max-width: 75rem; /* ~1200px (was 54rem ≈ 864px) */
  margin: 0 auto;
}

/* Keep long-form reading comfortable even though the container is wider. */
.cs-sections .cs-prose,
.cs-sections .cs-section-title,
.cs-sections blockquote {
  max-width: 56rem;
}

.cs-section {
  padding: clamp(2.25rem, 4.5vw, 3.25rem) 0;
  border-top: 1px solid var(--border);
  position: relative;
}

.cs-section:first-child {
  border-top: none;
  padding-top: 0;
}

.cs-section + .cs-section {
  border-top: 1px solid var(--border);
}

.cs-section-title {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 var(--s5);
  color: var(--text-3);
  position: relative;
  padding-left: 2.4rem;
}

.cs-section-title::before {
  counter-increment: cs-section;
  content: counter(cs-section, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  font-weight: 600;
}

.cs-sections {
  counter-reset: cs-section;
}

.cs-prose {
  font-size: 1.125rem; /* 18px — readable editorial body without marketing scale */
  line-height: 1.72;
  color: var(--text-1);
  font-weight: 300;
}

.cs-prose h3 {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 1.48rem;
  font-weight: 700;
  letter-spacing: -0.022em;
  line-height: 1.22;
  color: var(--text-0);
  margin: var(--s5) 0 var(--s3);
}

.cs-prose > h3:first-child {
  margin-top: 0;
}

.cs-prose p {
  margin: 0 0 var(--s5);
}

.cs-prose p:last-child {
  margin-bottom: 0;
}

.cs-prose ul {
  margin: 0 0 var(--s5);
  padding-left: 1.1rem;
  list-style: none;
}

.cs-prose ul li {
  position: relative;
  padding-left: 0.9rem;
  margin-bottom: 0.4rem;
}

.cs-prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 1px;
  background: var(--text-3);
}

.cs-prose ul:last-child {
  margin-bottom: 0;
}

/* Architecture diagram (framed like a technical figure) — intentionally
   modest: a supporting reference figure, never the primary visual. Capped
   well below the product showcase width so the screenshot reads 2x+ larger. */
.cs-arch-diagram {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  max-width: 34rem;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.cs-arch-diagram::before {
  content: "fig.";
  position: absolute;
  top: 10px;
  left: 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  z-index: 1;
}

.cs-arch-diagram svg {
  width: 100%;
  height: auto;
  display: block;
  color: var(--text-2);
  padding: var(--s8) var(--s6) var(--s5);
}

.cs-arch-node rect {
  fill: #ffffff;
  stroke: var(--border);
  stroke-width: 1;
}

.cs-arch-node text {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 10px;
  fill: var(--text-1);
  font-weight: 500;
}

.cs-arch-edge {
  stroke: rgba(234, 88, 12, 0.35);
  stroke-width: 1;
}

.cs-arch-diagram figcaption {
  margin: 0;
  padding: var(--s3) var(--s5);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--text-3);
  text-align: left;
  border-top: 1px solid var(--border);
  background: #ffffff;
}

/* Deploy flow */
.cs-deploy-flow {
  list-style: none;
  margin: var(--s4) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
}

.cs-deploy-flow li {
  flex: 1 1 auto;
  min-width: 7rem;
}

.cs-deploy-step {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text-1);
}

/* Stack tags */
.cs-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: var(--s3) 0 0;
  padding: 0;
}

.cs-stack li {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: #ffffff;
}

/* Metrics — magazine-grade emphasis */
.cs-metrics {
  display: grid;
  gap: 0;
  margin: clamp(1.25rem, 2.5vw, 1.75rem) 0 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cs-metrics > div {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: var(--s4);
  padding: var(--s5) 0;
  background: transparent;
  border-top: 1px solid var(--border);
  align-items: baseline;
}

.cs-metrics > div:first-child {
  border-top: none;
}

.cs-metrics dt {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.64rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  padding-top: 4px;
}

.cs-metrics dd {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-0);
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.45;
}

/* ── Pull quote (editorial moment in case studies) ───── */
.cs-pullquote {
  margin: clamp(1.75rem, 3.5vw, 2.5rem) 0;
  padding: 0 0 0 var(--s5);
  border-left: 2px solid var(--accent);
}

.cs-pullquote p {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.32;
  color: var(--text-0);
  margin: 0 0 var(--s3);
}

.cs-pullquote footer {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-3);
}

/* ── Highlighted single-metric ───────────────────────── */
.cs-highlight-metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--s5) var(--s5);
  margin: clamp(1.5rem, 3vw, 2rem) 0;
  background: #fafafa;
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 4px;
}

.cs-highlight-metric .cs-hm-value {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.65rem, 3.5vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  color: var(--text-0);
  line-height: 1.05;
}

.cs-highlight-metric .cs-hm-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ── Editorial figure grid (engineering documentation) ── */
.cs-figures {
  max-width: 68rem; /* Phase 2: wider gallery (was 54rem) */
  margin: clamp(2.25rem, 4.5vw, 3.25rem) auto 0;
  padding: 0 var(--sec-px);
  counter-reset: cs-fig;
}

.cs-figures-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s4);
  padding-bottom: var(--s3);
  margin-bottom: var(--s5);
  border-bottom: 1px solid var(--border);
}

.cs-figures-title {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0;
}

.cs-figures-meta {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.06em;
  color: var(--text-3);
}

/* Default landscape gallery (used by City Rubber etc.) ─── */
.cs-gallery {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s4);
}

.cs-gallery figure {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 3px;
  overflow: hidden;
  background: #ffffff;
  transition: border-color 200ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cs-gallery figure:hover {
  border-color: rgba(24, 24, 27, 0.18);
}

.cs-gallery .cs-figure-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f7f7f7;
  border-bottom: 1px solid var(--border);
}

.cs-gallery .cs-figure-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.cs-gallery figcaption {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  color: var(--text-2);
  padding: 10px 12px;
  background: #ffffff;
  line-height: 1.35;
}

.cs-gallery figcaption::before {
  counter-increment: cs-fig;
  content: "fig." counter(cs-fig, decimal-leading-zero);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
  font-size: 0.6rem;
}

/* ── Phone-mockup gallery (mobile UI evidence) ─────────── */
/* Tighter, scientific grid — phones are evidence inside a technical
   report, not hero visuals. Smaller frames, restrained bezels, mono
   captions, controlled max-width. */
.cs-gallery--phone {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s5);
  align-items: start;
  max-width: 48rem;
  margin: 0 auto;
}

.cs-gallery--phone figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  border: none;
  background: transparent;
  border-radius: 0;
  transition: none;
}

.cs-gallery--phone figure:hover {
  border-color: transparent;
  transform: none;
}

.cs-phone-device {
  position: relative;
  width: 100%;
  aspect-ratio: 9 / 19;
  background: #fafafa;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 4px;
  box-shadow: none;
  transition: border-color 220ms cubic-bezier(0.22, 0.61, 0.36, 1);
}

.cs-gallery--phone figure:hover .cs-phone-device {
  border-color: rgba(24, 24, 27, 0.18);
}

.cs-phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 10px;
  overflow: hidden;
  background: #ffffff;
  border: 1px solid var(--border);
}

.cs-phone-screen img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.cs-gallery--phone figcaption {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: var(--s3);
  padding: 0;
  background: transparent;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--text-2);
  line-height: 1.45;
}

.cs-gallery--phone figcaption::before {
  counter-increment: cs-fig;
  content: "fig." counter(cs-fig, decimal-leading-zero);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
  font-size: 0.58rem;
  padding-top: 1px;
}

/* ── Wide layout (operational software / ERP screenshots) ──
   Built for desktop screens that benefit from a larger frame and
   `object-fit: contain` so UI chrome is not cropped. The first figure
   spans the full grid as a hero piece; the rest sit in a 2×2 grid. */
.cs-figures--wide {
  max-width: var(--container-max, 1480px);
}
.cs-gallery--wide {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--s5);
}
.cs-gallery--wide .cs-figure-frame {
  aspect-ratio: 16 / 10;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  padding: clamp(14px, 2vw, 22px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.cs-gallery--wide .cs-figure-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 6px;
  box-shadow:
    0 1px 0 rgba(15, 23, 42, 0.04),
    0 12px 32px -16px rgba(15, 23, 42, 0.18),
    0 4px 12px -8px rgba(15, 23, 42, 0.08);
}
.cs-gallery--wide figcaption {
  font-size: 0.7rem;
  padding: 14px 16px;
}
.cs-gallery--wide .cs-figure--lead {
  grid-column: 1 / -1;
}
.cs-gallery--wide .cs-figure--lead .cs-figure-frame {
  aspect-ratio: 21 / 9;
  padding: clamp(20px, 2.5vw, 32px);
}
.cs-gallery--wide .cs-figure--lead figcaption {
  font-size: 0.78rem;
  padding: 16px 20px;
}

@media (max-width: 1100px) {
  .cs-gallery--wide .cs-figure--lead .cs-figure-frame {
    aspect-ratio: 16 / 9;
  }
}

@media (max-width: 760px) {
  .cs-gallery--wide {
    grid-template-columns: 1fr;
    gap: var(--s4);
  }
  .cs-gallery--wide .cs-figure-frame,
  .cs-gallery--wide .cs-figure--lead .cs-figure-frame {
    aspect-ratio: 16 / 10;
    padding: 12px;
  }
}

@media (max-width: 900px) {
  .cs-gallery--phone {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--s4);
    max-width: 26rem;
  }
}

@media (max-width: 720px) {
  .cs-engineering-main {
    padding-top: var(--s5);
  }

  .cs-hero,
  .cs-sections {
    max-width: 100%;
  }

  .cs-hero h1 {
    font-size: clamp(2.2rem, 12vw, 3rem);
  }

  .cs-hero-lead,
  .cs-prose {
    font-size: 1.04rem;
    line-height: 1.68;
  }

  .cs-section {
    padding: var(--s8) 0;
  }

  .cs-arch-diagram svg {
    padding: var(--s7) var(--s4) var(--s4);
  }

  .cs-gallery {
    grid-template-columns: 1fr;
  }
  .cs-figures {
    padding: 0 var(--s4);
  }
}

@media (max-width: 480px) {
  .cs-gallery--phone {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 21rem;
    gap: var(--s3);
  }
}

/* Close CTA on case studies */
.cs-close-cta {
  border-top: 1px solid var(--border);
  padding: var(--s10) var(--sec-px);
  background: #fafafa;
}

.cs-close-inner {
  max-width: 38rem;
  margin: 0 auto;
  text-align: center;
}

.cs-close-inner h2 {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.028em;
  line-height: 1.15;
  margin: 0 0 var(--s4);
  color: var(--text-0);
}

.cs-close-inner p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-1);
  font-weight: 300;
  margin: 0 0 var(--s6);
}

.cs-close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  justify-content: center;
}

.case-study-page--engineering .case-study-stats {
  display: none;
}

@media (max-width: 767px) {
  .cs-metrics > div {
    grid-template-columns: 1fr;
    gap: var(--s1);
  }
  .cs-deploy-flow li {
    min-width: 100%;
  }
}

/* ════════════════════════════════════════════════════════
 * Enterprise case-study system
 * Hero meta · Showcase · Key features · Stack groups ·
 * Results · Related work
 * ════════════════════════════════════════════════════════ */

/* ── Hero meta (role / domain / stack) ────────────────── */
.cs-hero-meta {
  list-style: none;
  margin: 0 0 var(--s6);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--s4) var(--s7);
}

.cs-hero-meta li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cs-hero-meta-k {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}

.cs-hero-meta-v {
  font-size: 0.92rem;
  color: var(--text-1);
  font-weight: 400;
}

/* ── Flagship / commercial-product hero accents (Phase 1) ── */
.cs-hero-kicker-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--s3);
}

.cs-flagship-badge {
  display: inline-flex;
  align-items: center;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent, #e84612);
  padding: 5px 11px;
  border-radius: 999px;
  margin-bottom: var(--s4);
  box-shadow: 0 6px 16px -6px rgba(232, 70, 18, 0.5);
}

.cs-product-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 var(--s4);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--text-2);
}
.cs-product-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16a34a;
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.18);
  flex-shrink: 0;
}
.cs-product-status {
  color: var(--text-3);
}

.cs-product-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s3);
  align-items: center;
  margin-top: var(--s4);
}

/* ── Project showcase — PRIMARY visual element ─────────── *
 * The product screenshot is the hero of the page. It is intentionally the
 * widest, tallest, most prominent block — far larger than the architecture
 * diagram lower down. */
.cs-showcase {
  max-width: var(--container-max, 1480px);
  margin: 0 auto clamp(3rem, 6vw, 4.5rem);
}

.cs-showcase-figure {
  margin: 0;
}

.cs-showcase-figure--lead {
  /* Phase 3: stronger separation so the hero screenshot dominates the gallery. */
  margin-bottom: clamp(1.4rem, 2.6vw, 2.1rem);
}

.cs-showcase-frame {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
  padding: clamp(18px, 3vw, 44px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cs-showcase-figure--lead .cs-showcase-frame {
  aspect-ratio: 16 / 9;
  /* Slightly tighter frame padding lets the screenshot read larger. */
  padding: clamp(16px, 2.6vw, 40px);
  box-shadow:
    0 1px 0 rgba(15, 23, 42, 0.04),
    0 48px 96px -36px rgba(15, 23, 42, 0.32);
}

.cs-showcase-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  border-radius: 8px;
  box-shadow:
    0 1px 0 rgba(15, 23, 42, 0.04),
    0 18px 44px -20px rgba(15, 23, 42, 0.22),
    0 6px 16px -10px rgba(15, 23, 42, 0.1);
}

.cs-showcase-grid {
  display: grid;
  /* Phase 3: thumbnails ~33% larger (15rem → 20rem) with more breathing room. */
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: clamp(1.25rem, 2.4vw, 1.9rem);
}

.cs-showcase-grid .cs-showcase-figure {
  transition:
    transform 220ms cubic-bezier(0.22, 0.61, 0.36, 1),
    filter 220ms ease;
}

.cs-showcase-grid .cs-showcase-figure:hover {
  transform: translateY(-4px);
}

.cs-showcase-grid .cs-showcase-frame {
  aspect-ratio: 16 / 10;
  padding: clamp(12px, 1.8vw, 22px);
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

.cs-showcase-grid .cs-showcase-figure:hover .cs-showcase-frame {
  border-color: rgba(232, 70, 18, 0.45);
  box-shadow:
    0 1px 0 rgba(15, 23, 42, 0.04),
    0 26px 56px -26px rgba(15, 23, 42, 0.28);
}

/* Signal band — outcomes-forward showcase when a project has no screenshots */
.cs-signal-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #fafafa;
}

.cs-signal {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border-right: 1px solid var(--border);
}

.cs-signal:last-child {
  border-right: none;
}

.cs-signal-v {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-0);
  line-height: 1;
}

.cs-signal-l {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  line-height: 1.4;
}

/* ── Key features grid ────────────────────────────────── */
.cs-features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--s5) var(--s6);
}

.cs-feature {
  border-top: 1px solid var(--border);
  padding-top: var(--s4);
}

.cs-feature-title {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--text-0);
  margin: 0 0 var(--s2);
}

.cs-feature-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-1);
  font-weight: 300;
  margin: 0;
}

/* ── Technology stack (grouped) ───────────────────────── */
.cs-stack-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: var(--s5) var(--s6);
}

.cs-stack-group {
  display: flex;
  flex-direction: column;
  gap: var(--s3);
}

.cs-stack-group-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.cs-stack-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.cs-stack-list li {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-2);
  background: #ffffff;
}

/* ── Results (measurable impact) ──────────────────────── */
.cs-results {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: var(--s4);
}

.cs-result {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(1.25rem, 2.5vw, 1.75rem);
  border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 6px;
  background: #fafafa;
}

.cs-result-value {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.4rem, 2.8vw, 1.9rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-0);
  line-height: 1.05;
}

.cs-result-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  line-height: 1.4;
}

/* ── Key outcomes — LARGE visual cards (never paragraphs) ─ *
 * Sits directly under Solution. Big numeric/qualitative statements so the
 * page reads "we achieved these results", not "here is a report". */
.cs-outcomes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1.1rem, 2vw, 1.6rem);
}

/* Phase 4: larger padding, taller cards, and stronger hierarchy so the
   outcome values become the dominant element after the screenshot. */
.cs-outcome {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: var(--s3);
  min-height: clamp(11.5rem, 18vw, 14rem);
  padding: clamp(2rem, 3.4vw, 2.9rem);
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fafafa;
  position: relative;
  overflow: hidden;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.cs-outcome:hover {
  border-color: rgba(232, 70, 18, 0.35);
  box-shadow: 0 24px 50px -28px rgba(15, 23, 42, 0.26);
  transform: translateY(-3px);
}

.cs-outcome::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent);
  opacity: 0.9;
}

.cs-outcome-value {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(2.5rem, 5.2vw, 3.8rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  color: var(--text-0);
  line-height: 0.98;
}

.cs-outcome-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  line-height: 1.5;
}

/* ── Related work (next case study) ───────────────────── */
.cs-related {
  max-width: 54rem;
  margin: clamp(2.5rem, 5vw, 3.5rem) auto 0;
}

.cs-related-kicker {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 0 0 var(--s4);
}

.cs-related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s5);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--border);
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  background: #ffffff;
  transition: border-color 200ms ease, background 200ms ease;
}

.cs-related-card:hover {
  border-color: rgba(24, 24, 27, 0.2);
  background: #fafafa;
}

.cs-related-cat {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.cs-related-name {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: clamp(1.3rem, 2.6vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-0);
  margin: 6px 0 var(--s2);
}

.cs-related-summary {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text-1);
  font-weight: 300;
  margin: 0;
  max-width: 34rem;
}

.cs-related-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--text-2);
}

.cs-related-cta svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 220ms ease;
}

.cs-related-card:hover .cs-related-cta {
  color: var(--accent);
}

.cs-related-card:hover .cs-related-cta svg {
  transform: translateX(4px);
}

@media (max-width: 760px) {
  .cs-showcase-grid {
    grid-template-columns: 1fr;
  }
  .cs-outcomes {
    grid-template-columns: 1fr;
  }
  .cs-arch-diagram {
    max-width: 100%;
  }
  .cs-signal {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .cs-signal:last-child {
    border-bottom: none;
  }
  .cs-related-card {
    flex-direction: column;
    align-items: flex-start;
  }
}